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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 ARCH_BINFMT_ELF_RANDOMIZE_PIE
20 select RTC_LIB if !MACH_LOONGSON
21 select GENERIC_ATOMIC64 if !64BIT
22 select HAVE_DMA_ATTRS
23 select HAVE_DMA_API_DEBUG
24 select HAVE_GENERIC_HARDIRQS
25 select GENERIC_IRQ_PROBE
26 select GENERIC_IRQ_SHOW
27 select HAVE_ARCH_JUMP_LABEL
28 select IRQ_FORCED_THREADING
29 select HAVE_MEMBLOCK
30 select HAVE_MEMBLOCK_NODE_MAP
31 select ARCH_DISCARD_MEMBLOCK
32 select GENERIC_SMP_IDLE_THREAD
33
34 menu "Machine selection"
35
36 config ZONE_DMA
37 bool
38
39 choice
40 prompt "System type"
41 default SGI_IP22
42
43 config MIPS_ALCHEMY
44 bool "Alchemy processor based machines"
45 select 64BIT_PHYS_ADDR
46 select CEVT_R4K_LIB
47 select CSRC_R4K_LIB
48 select IRQ_CPU
49 select SYS_HAS_CPU_MIPS32_R1
50 select SYS_SUPPORTS_32BIT_KERNEL
51 select SYS_SUPPORTS_APM_EMULATION
52 select GENERIC_GPIO
53 select ARCH_WANT_OPTIONAL_GPIOLIB
54 select SYS_SUPPORTS_ZBOOT
55 select USB_ARCH_HAS_OHCI
56 select USB_ARCH_HAS_EHCI
57
58 config AR7
59 bool "Texas Instruments AR7"
60 select BOOT_ELF32
61 select DMA_NONCOHERENT
62 select CEVT_R4K
63 select CSRC_R4K
64 select IRQ_CPU
65 select NO_EXCEPT_FILL
66 select SWAP_IO_SPACE
67 select SYS_HAS_CPU_MIPS32_R1
68 select SYS_HAS_EARLY_PRINTK
69 select SYS_SUPPORTS_32BIT_KERNEL
70 select SYS_SUPPORTS_LITTLE_ENDIAN
71 select SYS_SUPPORTS_ZBOOT_UART16550
72 select ARCH_REQUIRE_GPIOLIB
73 select VLYNQ
74 help
75 Support for the Texas Instruments AR7 System-on-a-Chip
76 family: TNETD7100, 7200 and 7300.
77
78 config ATH79
79 bool "Atheros AR71XX/AR724X/AR913X based boards"
80 select ARCH_REQUIRE_GPIOLIB
81 select BOOT_RAW
82 select CEVT_R4K
83 select CSRC_R4K
84 select DMA_NONCOHERENT
85 select IRQ_CPU
86 select MIPS_MACHINE
87 select SYS_HAS_CPU_MIPS32_R2
88 select SYS_HAS_EARLY_PRINTK
89 select SYS_SUPPORTS_32BIT_KERNEL
90 select SYS_SUPPORTS_BIG_ENDIAN
91 help
92 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
93
94 config BCM47XX
95 bool "Broadcom BCM47XX based boards"
96 select CEVT_R4K
97 select CSRC_R4K
98 select DMA_NONCOHERENT
99 select HW_HAS_PCI
100 select IRQ_CPU
101 select SYS_SUPPORTS_32BIT_KERNEL
102 select SYS_SUPPORTS_LITTLE_ENDIAN
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 HAVE_PCSPKR_PLATFORM
189 select IRQ_CPU
190 select I8253
191 select I8259
192 select ISA
193 select SYS_HAS_CPU_R4X00
194 select SYS_SUPPORTS_32BIT_KERNEL
195 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
196 select SYS_SUPPORTS_100HZ
197 help
198 This a family of machines based on the MIPS R4030 chipset which was
199 used by several vendors to build RISC/os and Windows NT workstations.
200 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
201 Olivetti M700-10 workstations.
202
203 config MACH_JZ4740
204 bool "Ingenic JZ4740 based machines"
205 select SYS_HAS_CPU_MIPS32_R1
206 select SYS_SUPPORTS_32BIT_KERNEL
207 select SYS_SUPPORTS_LITTLE_ENDIAN
208 select DMA_NONCOHERENT
209 select IRQ_CPU
210 select GENERIC_GPIO
211 select ARCH_REQUIRE_GPIOLIB
212 select SYS_HAS_EARLY_PRINTK
213 select HAVE_PWM
214 select HAVE_CLK
215 select GENERIC_IRQ_CHIP
216
217 config LANTIQ
218 bool "Lantiq based platforms"
219 select DMA_NONCOHERENT
220 select IRQ_CPU
221 select CEVT_R4K
222 select CSRC_R4K
223 select SYS_HAS_CPU_MIPS32_R1
224 select SYS_HAS_CPU_MIPS32_R2
225 select SYS_SUPPORTS_BIG_ENDIAN
226 select SYS_SUPPORTS_32BIT_KERNEL
227 select SYS_SUPPORTS_MULTITHREADING
228 select SYS_HAS_EARLY_PRINTK
229 select ARCH_REQUIRE_GPIOLIB
230 select SWAP_IO_SPACE
231 select BOOT_RAW
232 select HAVE_CLK
233 select MIPS_MACHINE
234
235 config LASAT
236 bool "LASAT Networks platforms"
237 select CEVT_R4K
238 select CSRC_R4K
239 select DMA_NONCOHERENT
240 select SYS_HAS_EARLY_PRINTK
241 select HW_HAS_PCI
242 select IRQ_CPU
243 select PCI_GT64XXX_PCI0
244 select MIPS_NILE4
245 select R5000_CPU_SCACHE
246 select SYS_HAS_CPU_R5000
247 select SYS_SUPPORTS_32BIT_KERNEL
248 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
249 select SYS_SUPPORTS_LITTLE_ENDIAN
250
251 config MACH_LOONGSON
252 bool "Loongson family of machines"
253 select SYS_SUPPORTS_ZBOOT
254 help
255 This enables the support of Loongson family of machines.
256
257 Loongson is a family of general-purpose MIPS-compatible CPUs.
258 developed at Institute of Computing Technology (ICT),
259 Chinese Academy of Sciences (CAS) in the People's Republic
260 of China. The chief architect is Professor Weiwu Hu.
261
262 config MIPS_MALTA
263 bool "MIPS Malta board"
264 select ARCH_MAY_HAVE_PC_FDC
265 select BOOT_ELF32
266 select BOOT_RAW
267 select CEVT_R4K
268 select CSRC_R4K
269 select DMA_NONCOHERENT
270 select GENERIC_ISA_DMA
271 select HAVE_PCSPKR_PLATFORM
272 select IRQ_CPU
273 select IRQ_GIC
274 select HW_HAS_PCI
275 select I8253
276 select I8259
277 select MIPS_BOARDS_GEN
278 select MIPS_BONITO64
279 select MIPS_CPU_SCACHE
280 select PCI_GT64XXX_PCI0
281 select MIPS_MSC
282 select SWAP_IO_SPACE
283 select SYS_HAS_CPU_MIPS32_R1
284 select SYS_HAS_CPU_MIPS32_R2
285 select SYS_HAS_CPU_MIPS64_R1
286 select SYS_HAS_CPU_NEVADA
287 select SYS_HAS_CPU_RM7000
288 select SYS_HAS_EARLY_PRINTK
289 select SYS_SUPPORTS_32BIT_KERNEL
290 select SYS_SUPPORTS_64BIT_KERNEL
291 select SYS_SUPPORTS_BIG_ENDIAN
292 select SYS_SUPPORTS_LITTLE_ENDIAN
293 select SYS_SUPPORTS_MIPS_CMP
294 select SYS_SUPPORTS_MULTITHREADING
295 select SYS_SUPPORTS_SMARTMIPS
296 select SYS_SUPPORTS_ZBOOT
297 help
298 This enables support for the MIPS Technologies Malta evaluation
299 board.
300
301 config MIPS_SIM
302 bool 'MIPS simulator (MIPSsim)'
303 select CEVT_R4K
304 select CSRC_R4K
305 select DMA_NONCOHERENT
306 select SYS_HAS_EARLY_PRINTK
307 select IRQ_CPU
308 select BOOT_RAW
309 select SYS_HAS_CPU_MIPS32_R1
310 select SYS_HAS_CPU_MIPS32_R2
311 select SYS_HAS_EARLY_PRINTK
312 select SYS_SUPPORTS_32BIT_KERNEL
313 select SYS_SUPPORTS_BIG_ENDIAN
314 select SYS_SUPPORTS_MULTITHREADING
315 select SYS_SUPPORTS_LITTLE_ENDIAN
316 help
317 This option enables support for MIPS Technologies MIPSsim software
318 emulator.
319
320 config NEC_MARKEINS
321 bool "NEC EMMA2RH Mark-eins board"
322 select SOC_EMMA2RH
323 select HW_HAS_PCI
324 help
325 This enables support for the NEC Electronics Mark-eins boards.
326
327 config MACH_VR41XX
328 bool "NEC VR4100 series based machines"
329 select CEVT_R4K
330 select CSRC_R4K
331 select SYS_HAS_CPU_VR41XX
332 select ARCH_REQUIRE_GPIOLIB
333
334 config NXP_STB220
335 bool "NXP STB220 board"
336 select SOC_PNX833X
337 help
338 Support for NXP Semiconductors STB220 Development Board.
339
340 config NXP_STB225
341 bool "NXP 225 board"
342 select SOC_PNX833X
343 select SOC_PNX8335
344 help
345 Support for NXP Semiconductors STB225 Development Board.
346
347 config PNX8550_JBS
348 bool "NXP PNX8550 based JBS board"
349 select PNX8550
350 select SYS_SUPPORTS_LITTLE_ENDIAN
351
352 config PNX8550_STB810
353 bool "NXP PNX8550 based STB810 board"
354 select PNX8550
355 select SYS_SUPPORTS_LITTLE_ENDIAN
356
357 config PMC_MSP
358 bool "PMC-Sierra MSP chipsets"
359 depends on EXPERIMENTAL
360 select CEVT_R4K
361 select CSRC_R4K
362 select DMA_NONCOHERENT
363 select SWAP_IO_SPACE
364 select NO_EXCEPT_FILL
365 select BOOT_RAW
366 select SYS_HAS_CPU_MIPS32_R1
367 select SYS_HAS_CPU_MIPS32_R2
368 select SYS_SUPPORTS_32BIT_KERNEL
369 select SYS_SUPPORTS_BIG_ENDIAN
370 select IRQ_CPU
371 select SERIAL_8250
372 select SERIAL_8250_CONSOLE
373 help
374 This adds support for the PMC-Sierra family of Multi-Service
375 Processor System-On-A-Chips. These parts include a number
376 of integrated peripherals, interfaces and DSPs in addition to
377 a variety of MIPS cores.
378
379 config PMC_YOSEMITE
380 bool "PMC-Sierra Yosemite eval board"
381 select CEVT_R4K
382 select CSRC_R4K
383 select DMA_COHERENT
384 select HW_HAS_PCI
385 select IRQ_CPU
386 select IRQ_CPU_RM7K
387 select IRQ_CPU_RM9K
388 select SWAP_IO_SPACE
389 select SYS_HAS_CPU_RM9000
390 select SYS_HAS_EARLY_PRINTK
391 select SYS_SUPPORTS_32BIT_KERNEL
392 select SYS_SUPPORTS_64BIT_KERNEL
393 select SYS_SUPPORTS_BIG_ENDIAN
394 select SYS_SUPPORTS_HIGHMEM
395 select SYS_SUPPORTS_SMP
396 help
397 Yosemite is an evaluation board for the RM9000x2 processor
398 manufactured by PMC-Sierra.
399
400 config POWERTV
401 bool "Cisco PowerTV"
402 select BOOT_ELF32
403 select CEVT_R4K
404 select CPU_MIPSR2_IRQ_VI
405 select CPU_MIPSR2_IRQ_EI
406 select CSRC_POWERTV
407 select DMA_NONCOHERENT
408 select HW_HAS_PCI
409 select SYS_HAS_EARLY_PRINTK
410 select SYS_HAS_CPU_MIPS32_R2
411 select SYS_SUPPORTS_32BIT_KERNEL
412 select SYS_SUPPORTS_BIG_ENDIAN
413 select SYS_SUPPORTS_HIGHMEM
414 select USB_OHCI_LITTLE_ENDIAN
415 help
416 This enables support for the Cisco PowerTV Platform.
417
418 config SGI_IP22
419 bool "SGI IP22 (Indy/Indigo2)"
420 select ARC
421 select ARC32
422 select BOOT_ELF32
423 select CEVT_R4K
424 select CSRC_R4K
425 select DEFAULT_SGI_PARTITION
426 select DMA_NONCOHERENT
427 select HW_HAS_EISA
428 select I8253
429 select I8259
430 select IP22_CPU_SCACHE
431 select IRQ_CPU
432 select GENERIC_ISA_DMA_SUPPORT_BROKEN
433 select SGI_HAS_I8042
434 select SGI_HAS_INDYDOG
435 select SGI_HAS_HAL2
436 select SGI_HAS_SEEQ
437 select SGI_HAS_WD93
438 select SGI_HAS_ZILOG
439 select SWAP_IO_SPACE
440 select SYS_HAS_CPU_R4X00
441 select SYS_HAS_CPU_R5000
442 #
443 # Disable EARLY_PRINTK for now since it leads to overwritten prom
444 # memory during early boot on some machines.
445 #
446 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
447 # for a more details discussion
448 #
449 # select SYS_HAS_EARLY_PRINTK
450 select SYS_SUPPORTS_32BIT_KERNEL
451 select SYS_SUPPORTS_64BIT_KERNEL
452 select SYS_SUPPORTS_BIG_ENDIAN
453 help
454 This are the SGI Indy, Challenge S and Indigo2, as well as certain
455 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
456 that runs on these, say Y here.
457
458 config SGI_IP27
459 bool "SGI IP27 (Origin200/2000)"
460 select ARC
461 select ARC64
462 select BOOT_ELF64
463 select DEFAULT_SGI_PARTITION
464 select DMA_COHERENT
465 select SYS_HAS_EARLY_PRINTK
466 select HW_HAS_PCI
467 select NR_CPUS_DEFAULT_64
468 select SYS_HAS_CPU_R10000
469 select SYS_SUPPORTS_64BIT_KERNEL
470 select SYS_SUPPORTS_BIG_ENDIAN
471 select SYS_SUPPORTS_NUMA
472 select SYS_SUPPORTS_SMP
473 help
474 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
475 workstations. To compile a Linux kernel that runs on these, say Y
476 here.
477
478 config SGI_IP28
479 bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
480 depends on EXPERIMENTAL
481 select ARC
482 select ARC64
483 select BOOT_ELF64
484 select CEVT_R4K
485 select CSRC_R4K
486 select DEFAULT_SGI_PARTITION
487 select DMA_NONCOHERENT
488 select GENERIC_ISA_DMA_SUPPORT_BROKEN
489 select IRQ_CPU
490 select HW_HAS_EISA
491 select I8253
492 select I8259
493 select SGI_HAS_I8042
494 select SGI_HAS_INDYDOG
495 select SGI_HAS_HAL2
496 select SGI_HAS_SEEQ
497 select SGI_HAS_WD93
498 select SGI_HAS_ZILOG
499 select SWAP_IO_SPACE
500 select SYS_HAS_CPU_R10000
501 #
502 # Disable EARLY_PRINTK for now since it leads to overwritten prom
503 # memory during early boot on some machines.
504 #
505 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
506 # for a more details discussion
507 #
508 # select SYS_HAS_EARLY_PRINTK
509 select SYS_SUPPORTS_64BIT_KERNEL
510 select SYS_SUPPORTS_BIG_ENDIAN
511 help
512 This is the SGI Indigo2 with R10000 processor. To compile a Linux
513 kernel that runs on these, say Y here.
514
515 config SGI_IP32
516 bool "SGI IP32 (O2)"
517 select ARC
518 select ARC32
519 select BOOT_ELF32
520 select CEVT_R4K
521 select CSRC_R4K
522 select DMA_NONCOHERENT
523 select HW_HAS_PCI
524 select IRQ_CPU
525 select R5000_CPU_SCACHE
526 select RM7000_CPU_SCACHE
527 select SYS_HAS_CPU_R5000
528 select SYS_HAS_CPU_R10000 if BROKEN
529 select SYS_HAS_CPU_RM7000
530 select SYS_HAS_CPU_NEVADA
531 select SYS_SUPPORTS_64BIT_KERNEL
532 select SYS_SUPPORTS_BIG_ENDIAN
533 help
534 If you want this kernel to run on SGI O2 workstation, say Y here.
535
536 config SIBYTE_CRHINE
537 bool "Sibyte BCM91120C-CRhine"
538 depends on EXPERIMENTAL
539 select BOOT_ELF32
540 select DMA_COHERENT
541 select SIBYTE_BCM1120
542 select SWAP_IO_SPACE
543 select SYS_HAS_CPU_SB1
544 select SYS_SUPPORTS_BIG_ENDIAN
545 select SYS_SUPPORTS_LITTLE_ENDIAN
546
547 config SIBYTE_CARMEL
548 bool "Sibyte BCM91120x-Carmel"
549 depends on EXPERIMENTAL
550 select BOOT_ELF32
551 select DMA_COHERENT
552 select SIBYTE_BCM1120
553 select SWAP_IO_SPACE
554 select SYS_HAS_CPU_SB1
555 select SYS_SUPPORTS_BIG_ENDIAN
556 select SYS_SUPPORTS_LITTLE_ENDIAN
557
558 config SIBYTE_CRHONE
559 bool "Sibyte BCM91125C-CRhone"
560 depends on EXPERIMENTAL
561 select BOOT_ELF32
562 select DMA_COHERENT
563 select SIBYTE_BCM1125
564 select SWAP_IO_SPACE
565 select SYS_HAS_CPU_SB1
566 select SYS_SUPPORTS_BIG_ENDIAN
567 select SYS_SUPPORTS_HIGHMEM
568 select SYS_SUPPORTS_LITTLE_ENDIAN
569
570 config SIBYTE_RHONE
571 bool "Sibyte BCM91125E-Rhone"
572 depends on EXPERIMENTAL
573 select BOOT_ELF32
574 select DMA_COHERENT
575 select SIBYTE_BCM1125H
576 select SWAP_IO_SPACE
577 select SYS_HAS_CPU_SB1
578 select SYS_SUPPORTS_BIG_ENDIAN
579 select SYS_SUPPORTS_LITTLE_ENDIAN
580
581 config SIBYTE_SWARM
582 bool "Sibyte BCM91250A-SWARM"
583 select BOOT_ELF32
584 select DMA_COHERENT
585 select HAVE_PATA_PLATFORM
586 select NR_CPUS_DEFAULT_2
587 select SIBYTE_SB1250
588 select SWAP_IO_SPACE
589 select SYS_HAS_CPU_SB1
590 select SYS_SUPPORTS_BIG_ENDIAN
591 select SYS_SUPPORTS_HIGHMEM
592 select SYS_SUPPORTS_LITTLE_ENDIAN
593 select ZONE_DMA32 if 64BIT
594
595 config SIBYTE_LITTLESUR
596 bool "Sibyte BCM91250C2-LittleSur"
597 depends on EXPERIMENTAL
598 select BOOT_ELF32
599 select DMA_COHERENT
600 select HAVE_PATA_PLATFORM
601 select NR_CPUS_DEFAULT_2
602 select SIBYTE_SB1250
603 select SWAP_IO_SPACE
604 select SYS_HAS_CPU_SB1
605 select SYS_SUPPORTS_BIG_ENDIAN
606 select SYS_SUPPORTS_HIGHMEM
607 select SYS_SUPPORTS_LITTLE_ENDIAN
608
609 config SIBYTE_SENTOSA
610 bool "Sibyte BCM91250E-Sentosa"
611 depends on EXPERIMENTAL
612 select BOOT_ELF32
613 select DMA_COHERENT
614 select NR_CPUS_DEFAULT_2
615 select SIBYTE_SB1250
616 select SWAP_IO_SPACE
617 select SYS_HAS_CPU_SB1
618 select SYS_SUPPORTS_BIG_ENDIAN
619 select SYS_SUPPORTS_LITTLE_ENDIAN
620
621 config SIBYTE_BIGSUR
622 bool "Sibyte BCM91480B-BigSur"
623 select BOOT_ELF32
624 select DMA_COHERENT
625 select NR_CPUS_DEFAULT_4
626 select SIBYTE_BCM1x80
627 select SWAP_IO_SPACE
628 select SYS_HAS_CPU_SB1
629 select SYS_SUPPORTS_BIG_ENDIAN
630 select SYS_SUPPORTS_HIGHMEM
631 select SYS_SUPPORTS_LITTLE_ENDIAN
632 select ZONE_DMA32 if 64BIT
633
634 config SNI_RM
635 bool "SNI RM200/300/400"
636 select ARC if CPU_LITTLE_ENDIAN
637 select ARC32 if CPU_LITTLE_ENDIAN
638 select SNIPROM if CPU_BIG_ENDIAN
639 select ARCH_MAY_HAVE_PC_FDC
640 select BOOT_ELF32
641 select CEVT_R4K
642 select CSRC_R4K
643 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
644 select DMA_NONCOHERENT
645 select GENERIC_ISA_DMA
646 select HAVE_PCSPKR_PLATFORM
647 select HW_HAS_EISA
648 select HW_HAS_PCI
649 select IRQ_CPU
650 select I8253
651 select I8259
652 select ISA
653 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
654 select SYS_HAS_CPU_R4X00
655 select SYS_HAS_CPU_R5000
656 select SYS_HAS_CPU_R10000
657 select R5000_CPU_SCACHE
658 select SYS_HAS_EARLY_PRINTK
659 select SYS_SUPPORTS_32BIT_KERNEL
660 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
661 select SYS_SUPPORTS_BIG_ENDIAN
662 select SYS_SUPPORTS_HIGHMEM
663 select SYS_SUPPORTS_LITTLE_ENDIAN
664 help
665 The SNI RM200/300/400 are MIPS-based machines manufactured by
666 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
667 Technology and now in turn merged with Fujitsu. Say Y here to
668 support this machine type.
669
670 config MACH_TX39XX
671 bool "Toshiba TX39 series based machines"
672
673 config MACH_TX49XX
674 bool "Toshiba TX49 series based machines"
675
676 config MIKROTIK_RB532
677 bool "Mikrotik RB532 boards"
678 select CEVT_R4K
679 select CSRC_R4K
680 select DMA_NONCOHERENT
681 select HW_HAS_PCI
682 select IRQ_CPU
683 select SYS_HAS_CPU_MIPS32_R1
684 select SYS_SUPPORTS_32BIT_KERNEL
685 select SYS_SUPPORTS_LITTLE_ENDIAN
686 select SWAP_IO_SPACE
687 select BOOT_RAW
688 select ARCH_REQUIRE_GPIOLIB
689 help
690 Support the Mikrotik(tm) RouterBoard 532 series,
691 based on the IDT RC32434 SoC.
692
693 config WR_PPMC
694 bool "Wind River PPMC board"
695 select CEVT_R4K
696 select CSRC_R4K
697 select IRQ_CPU
698 select BOOT_ELF32
699 select DMA_NONCOHERENT
700 select HW_HAS_PCI
701 select PCI_GT64XXX_PCI0
702 select SWAP_IO_SPACE
703 select SYS_HAS_CPU_MIPS32_R1
704 select SYS_HAS_CPU_MIPS32_R2
705 select SYS_HAS_CPU_MIPS64_R1
706 select SYS_HAS_CPU_NEVADA
707 select SYS_HAS_CPU_RM7000
708 select SYS_SUPPORTS_32BIT_KERNEL
709 select SYS_SUPPORTS_64BIT_KERNEL
710 select SYS_SUPPORTS_BIG_ENDIAN
711 select SYS_SUPPORTS_LITTLE_ENDIAN
712 help
713 This enables support for the Wind River MIPS32 4KC PPMC evaluation
714 board, which is based on GT64120 bridge chip.
715
716 config CAVIUM_OCTEON_SIMULATOR
717 bool "Cavium Networks Octeon Simulator"
718 select CEVT_R4K
719 select 64BIT_PHYS_ADDR
720 select DMA_COHERENT
721 select SYS_SUPPORTS_64BIT_KERNEL
722 select SYS_SUPPORTS_BIG_ENDIAN
723 select SYS_SUPPORTS_HOTPLUG_CPU
724 select SYS_HAS_CPU_CAVIUM_OCTEON
725 select HOLES_IN_ZONE
726 help
727 The Octeon simulator is software performance model of the Cavium
728 Octeon Processor. It supports simulating Octeon processors on x86
729 hardware.
730
731 config CAVIUM_OCTEON_REFERENCE_BOARD
732 bool "Cavium Networks Octeon reference board"
733 select CEVT_R4K
734 select 64BIT_PHYS_ADDR
735 select DMA_COHERENT
736 select SYS_SUPPORTS_64BIT_KERNEL
737 select SYS_SUPPORTS_BIG_ENDIAN
738 select SYS_SUPPORTS_HOTPLUG_CPU
739 select SYS_HAS_EARLY_PRINTK
740 select SYS_HAS_CPU_CAVIUM_OCTEON
741 select SWAP_IO_SPACE
742 select HW_HAS_PCI
743 select ARCH_SUPPORTS_MSI
744 select ZONE_DMA32
745 select USB_ARCH_HAS_OHCI
746 select USB_ARCH_HAS_EHCI
747 select HOLES_IN_ZONE
748 help
749 This option supports all of the Octeon reference boards from Cavium
750 Networks. It builds a kernel that dynamically determines the Octeon
751 CPU type and supports all known board reference implementations.
752 Some of the supported boards are:
753 EBT3000
754 EBH3000
755 EBH3100
756 Thunder
757 Kodama
758 Hikari
759 Say Y here for most Octeon reference boards.
760
761 config NLM_XLR_BOARD
762 bool "Netlogic XLR/XLS based systems"
763 depends on EXPERIMENTAL
764 select BOOT_ELF32
765 select NLM_COMMON
766 select SYS_HAS_CPU_XLR
767 select SYS_SUPPORTS_SMP
768 select HW_HAS_PCI
769 select SWAP_IO_SPACE
770 select SYS_SUPPORTS_32BIT_KERNEL
771 select SYS_SUPPORTS_64BIT_KERNEL
772 select 64BIT_PHYS_ADDR
773 select SYS_SUPPORTS_BIG_ENDIAN
774 select SYS_SUPPORTS_HIGHMEM
775 select DMA_COHERENT
776 select NR_CPUS_DEFAULT_32
777 select CEVT_R4K
778 select CSRC_R4K
779 select IRQ_CPU
780 select ARCH_SUPPORTS_MSI
781 select ZONE_DMA if 64BIT
782 select SYNC_R4K
783 select SYS_HAS_EARLY_PRINTK
784 help
785 Support for systems based on Netlogic XLR and XLS processors.
786 Say Y here if you have a XLR or XLS based board.
787
788 config NLM_XLP_BOARD
789 bool "Netlogic XLP based systems"
790 depends on EXPERIMENTAL
791 select BOOT_ELF32
792 select NLM_COMMON
793 select SYS_HAS_CPU_XLP
794 select SYS_SUPPORTS_SMP
795 select HW_HAS_PCI
796 select SWAP_IO_SPACE
797 select SYS_SUPPORTS_32BIT_KERNEL
798 select SYS_SUPPORTS_64BIT_KERNEL
799 select 64BIT_PHYS_ADDR
800 select SYS_SUPPORTS_BIG_ENDIAN
801 select SYS_SUPPORTS_LITTLE_ENDIAN
802 select SYS_SUPPORTS_HIGHMEM
803 select DMA_COHERENT
804 select NR_CPUS_DEFAULT_32
805 select CEVT_R4K
806 select CSRC_R4K
807 select IRQ_CPU
808 select ZONE_DMA if 64BIT
809 select SYNC_R4K
810 select SYS_HAS_EARLY_PRINTK
811 help
812 This board is based on Netlogic XLP Processor.
813 Say Y here if you have a XLP based board.
814
815 endchoice
816
817 source "arch/mips/alchemy/Kconfig"
818 source "arch/mips/ath79/Kconfig"
819 source "arch/mips/bcm47xx/Kconfig"
820 source "arch/mips/bcm63xx/Kconfig"
821 source "arch/mips/jazz/Kconfig"
822 source "arch/mips/jz4740/Kconfig"
823 source "arch/mips/lantiq/Kconfig"
824 source "arch/mips/lasat/Kconfig"
825 source "arch/mips/pmc-sierra/Kconfig"
826 source "arch/mips/powertv/Kconfig"
827 source "arch/mips/sgi-ip27/Kconfig"
828 source "arch/mips/sibyte/Kconfig"
829 source "arch/mips/txx9/Kconfig"
830 source "arch/mips/vr41xx/Kconfig"
831 source "arch/mips/cavium-octeon/Kconfig"
832 source "arch/mips/loongson/Kconfig"
833 source "arch/mips/netlogic/Kconfig"
834
835 endmenu
836
837 config RWSEM_GENERIC_SPINLOCK
838 bool
839 default y
840
841 config RWSEM_XCHGADD_ALGORITHM
842 bool
843
844 config ARCH_HAS_ILOG2_U32
845 bool
846 default n
847
848 config ARCH_HAS_ILOG2_U64
849 bool
850 default n
851
852 config GENERIC_HWEIGHT
853 bool
854 default y
855
856 config GENERIC_CALIBRATE_DELAY
857 bool
858 default y
859
860 config GENERIC_CLOCKEVENTS
861 bool
862 default y
863
864 config GENERIC_CMOS_UPDATE
865 bool
866 default y
867
868 config SCHED_OMIT_FRAME_POINTER
869 bool
870 default y
871
872 #
873 # Select some configuration options automatically based on user selections.
874 #
875 config ARC
876 bool
877
878 config ARCH_MAY_HAVE_PC_FDC
879 bool
880
881 config BOOT_RAW
882 bool
883
884 config CEVT_BCM1480
885 bool
886
887 config CEVT_DS1287
888 bool
889
890 config CEVT_GT641XX
891 bool
892
893 config CEVT_R4K_LIB
894 bool
895
896 config CEVT_R4K
897 select CEVT_R4K_LIB
898 bool
899
900 config CEVT_SB1250
901 bool
902
903 config CEVT_TXX9
904 bool
905
906 config CSRC_BCM1480
907 bool
908
909 config CSRC_IOASIC
910 bool
911
912 config CSRC_POWERTV
913 bool
914
915 config CSRC_R4K_LIB
916 bool
917
918 config CSRC_R4K
919 select CSRC_R4K_LIB
920 bool
921
922 config CSRC_SB1250
923 bool
924
925 config GPIO_TXX9
926 select GENERIC_GPIO
927 select ARCH_REQUIRE_GPIOLIB
928 bool
929
930 config CFE
931 bool
932
933 config ARCH_DMA_ADDR_T_64BIT
934 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
935
936 config DMA_COHERENT
937 bool
938
939 config DMA_NONCOHERENT
940 bool
941 select NEED_DMA_MAP_STATE
942
943 config NEED_DMA_MAP_STATE
944 bool
945
946 config SYS_HAS_EARLY_PRINTK
947 bool
948
949 config HOTPLUG_CPU
950 bool "Support for hot-pluggable CPUs"
951 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
952 help
953 Say Y here to allow turning CPUs off and on. CPUs can be
954 controlled through /sys/devices/system/cpu.
955 (Note: power management support will enable this option
956 automatically on SMP systems. )
957 Say N if you want to disable CPU hotplug.
958
959 config SYS_SUPPORTS_HOTPLUG_CPU
960 bool
961
962 config I8259
963 bool
964
965 config MIPS_BONITO64
966 bool
967
968 config MIPS_MSC
969 bool
970
971 config MIPS_NILE4
972 bool
973
974 config MIPS_DISABLE_OBSOLETE_IDE
975 bool
976
977 config SYNC_R4K
978 bool
979
980 config MIPS_MACHINE
981 def_bool n
982
983 config NO_IOPORT
984 def_bool n
985
986 config GENERIC_ISA_DMA
987 bool
988 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
989 select ISA_DMA_API
990
991 config GENERIC_ISA_DMA_SUPPORT_BROKEN
992 bool
993 select GENERIC_ISA_DMA
994
995 config ISA_DMA_API
996 bool
997
998 config GENERIC_GPIO
999 bool
1000
1001 config HOLES_IN_ZONE
1002 bool
1003
1004 #
1005 # Endianness selection. Sufficiently obscure so many users don't know what to
1006 # answer,so we try hard to limit the available choices. Also the use of a
1007 # choice statement should be more obvious to the user.
1008 #
1009 choice
1010 prompt "Endianness selection"
1011 help
1012 Some MIPS machines can be configured for either little or big endian
1013 byte order. These modes require different kernels and a different
1014 Linux distribution. In general there is one preferred byteorder for a
1015 particular system but some systems are just as commonly used in the
1016 one or the other endianness.
1017
1018 config CPU_BIG_ENDIAN
1019 bool "Big endian"
1020 depends on SYS_SUPPORTS_BIG_ENDIAN
1021
1022 config CPU_LITTLE_ENDIAN
1023 bool "Little endian"
1024 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1025 help
1026
1027 endchoice
1028
1029 config EXPORT_UASM
1030 bool
1031
1032 config SYS_SUPPORTS_APM_EMULATION
1033 bool
1034
1035 config SYS_SUPPORTS_BIG_ENDIAN
1036 bool
1037
1038 config SYS_SUPPORTS_LITTLE_ENDIAN
1039 bool
1040
1041 config SYS_SUPPORTS_HUGETLBFS
1042 bool
1043 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1044 default y
1045
1046 config IRQ_CPU
1047 bool
1048
1049 config IRQ_CPU_RM7K
1050 bool
1051
1052 config IRQ_CPU_RM9K
1053 bool
1054
1055 config IRQ_MSP_SLP
1056 bool
1057
1058 config IRQ_MSP_CIC
1059 bool
1060
1061 config IRQ_TXX9
1062 bool
1063
1064 config IRQ_GT641XX
1065 bool
1066
1067 config IRQ_GIC
1068 bool
1069
1070 config MIPS_BOARDS_GEN
1071 bool
1072
1073 config PCI_GT64XXX_PCI0
1074 bool
1075
1076 config NO_EXCEPT_FILL
1077 bool
1078
1079 config MIPS_RM9122
1080 bool
1081 select SERIAL_RM9000
1082
1083 config SOC_EMMA2RH
1084 bool
1085 select CEVT_R4K
1086 select CSRC_R4K
1087 select DMA_NONCOHERENT
1088 select IRQ_CPU
1089 select SWAP_IO_SPACE
1090 select SYS_HAS_CPU_R5500
1091 select SYS_SUPPORTS_32BIT_KERNEL
1092 select SYS_SUPPORTS_64BIT_KERNEL
1093 select SYS_SUPPORTS_BIG_ENDIAN
1094
1095 config SOC_PNX833X
1096 bool
1097 select CEVT_R4K
1098 select CSRC_R4K
1099 select IRQ_CPU
1100 select DMA_NONCOHERENT
1101 select SYS_HAS_CPU_MIPS32_R2
1102 select SYS_SUPPORTS_32BIT_KERNEL
1103 select SYS_SUPPORTS_LITTLE_ENDIAN
1104 select SYS_SUPPORTS_BIG_ENDIAN
1105 select GENERIC_GPIO
1106 select CPU_MIPSR2_IRQ_VI
1107
1108 config SOC_PNX8335
1109 bool
1110 select SOC_PNX833X
1111
1112 config PNX8550
1113 bool
1114 select SOC_PNX8550
1115
1116 config SOC_PNX8550
1117 bool
1118 select DMA_NONCOHERENT
1119 select HW_HAS_PCI
1120 select SYS_HAS_CPU_MIPS32_R1
1121 select SYS_HAS_EARLY_PRINTK
1122 select SYS_SUPPORTS_32BIT_KERNEL
1123 select GENERIC_GPIO
1124
1125 config SWAP_IO_SPACE
1126 bool
1127
1128 config SERIAL_RM9000
1129 bool
1130
1131 config SGI_HAS_INDYDOG
1132 bool
1133
1134 config SGI_HAS_HAL2
1135 bool
1136
1137 config SGI_HAS_SEEQ
1138 bool
1139
1140 config SGI_HAS_WD93
1141 bool
1142
1143 config SGI_HAS_ZILOG
1144 bool
1145
1146 config SGI_HAS_I8042
1147 bool
1148
1149 config DEFAULT_SGI_PARTITION
1150 bool
1151
1152 config ARC32
1153 bool
1154
1155 config SNIPROM
1156 bool
1157
1158 config BOOT_ELF32
1159 bool
1160
1161 config MIPS_L1_CACHE_SHIFT
1162 int
1163 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
1164 default "6" if MIPS_CPU_SCACHE
1165 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1166 default "5"
1167
1168 config HAVE_STD_PC_SERIAL_PORT
1169 bool
1170
1171 config ARC_CONSOLE
1172 bool "ARC console support"
1173 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1174
1175 config ARC_MEMORY
1176 bool
1177 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1178 default y
1179
1180 config ARC_PROMLIB
1181 bool
1182 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1183 default y
1184
1185 config ARC64
1186 bool
1187
1188 config BOOT_ELF64
1189 bool
1190
1191 menu "CPU selection"
1192
1193 choice
1194 prompt "CPU type"
1195 default CPU_R4X00
1196
1197 config CPU_LOONGSON2E
1198 bool "Loongson 2E"
1199 depends on SYS_HAS_CPU_LOONGSON2E
1200 select CPU_LOONGSON2
1201 help
1202 The Loongson 2E processor implements the MIPS III instruction set
1203 with many extensions.
1204
1205 It has an internal FPGA northbridge, which is compatible to
1206 bonito64.
1207
1208 config CPU_LOONGSON2F
1209 bool "Loongson 2F"
1210 depends on SYS_HAS_CPU_LOONGSON2F
1211 select CPU_LOONGSON2
1212 select GENERIC_GPIO
1213 select ARCH_REQUIRE_GPIOLIB
1214 help
1215 The Loongson 2F processor implements the MIPS III instruction set
1216 with many extensions.
1217
1218 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1219 have a similar programming interface with FPGA northbridge used in
1220 Loongson2E.
1221
1222 config CPU_MIPS32_R1
1223 bool "MIPS32 Release 1"
1224 depends on SYS_HAS_CPU_MIPS32_R1
1225 select CPU_HAS_PREFETCH
1226 select CPU_SUPPORTS_32BIT_KERNEL
1227 select CPU_SUPPORTS_HIGHMEM
1228 help
1229 Choose this option to build a kernel for release 1 or later of the
1230 MIPS32 architecture. Most modern embedded systems with a 32-bit
1231 MIPS processor are based on a MIPS32 processor. If you know the
1232 specific type of processor in your system, choose those that one
1233 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1234 Release 2 of the MIPS32 architecture is available since several
1235 years so chances are you even have a MIPS32 Release 2 processor
1236 in which case you should choose CPU_MIPS32_R2 instead for better
1237 performance.
1238
1239 config CPU_MIPS32_R2
1240 bool "MIPS32 Release 2"
1241 depends on SYS_HAS_CPU_MIPS32_R2
1242 select CPU_HAS_PREFETCH
1243 select CPU_SUPPORTS_32BIT_KERNEL
1244 select CPU_SUPPORTS_HIGHMEM
1245 help
1246 Choose this option to build a kernel for release 2 or later of the
1247 MIPS32 architecture. Most modern embedded systems with a 32-bit
1248 MIPS processor are based on a MIPS32 processor. If you know the
1249 specific type of processor in your system, choose those that one
1250 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1251
1252 config CPU_MIPS64_R1
1253 bool "MIPS64 Release 1"
1254 depends on SYS_HAS_CPU_MIPS64_R1
1255 select CPU_HAS_PREFETCH
1256 select CPU_SUPPORTS_32BIT_KERNEL
1257 select CPU_SUPPORTS_64BIT_KERNEL
1258 select CPU_SUPPORTS_HIGHMEM
1259 select CPU_SUPPORTS_HUGEPAGES
1260 help
1261 Choose this option to build a kernel for release 1 or later of the
1262 MIPS64 architecture. Many modern embedded systems with a 64-bit
1263 MIPS processor are based on a MIPS64 processor. If you know the
1264 specific type of processor in your system, choose those that one
1265 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1266 Release 2 of the MIPS64 architecture is available since several
1267 years so chances are you even have a MIPS64 Release 2 processor
1268 in which case you should choose CPU_MIPS64_R2 instead for better
1269 performance.
1270
1271 config CPU_MIPS64_R2
1272 bool "MIPS64 Release 2"
1273 depends on SYS_HAS_CPU_MIPS64_R2
1274 select CPU_HAS_PREFETCH
1275 select CPU_SUPPORTS_32BIT_KERNEL
1276 select CPU_SUPPORTS_64BIT_KERNEL
1277 select CPU_SUPPORTS_HIGHMEM
1278 select CPU_SUPPORTS_HUGEPAGES
1279 help
1280 Choose this option to build a kernel for release 2 or later of the
1281 MIPS64 architecture. Many modern embedded systems with a 64-bit
1282 MIPS processor are based on a MIPS64 processor. If you know the
1283 specific type of processor in your system, choose those that one
1284 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1285
1286 config CPU_R3000
1287 bool "R3000"
1288 depends on SYS_HAS_CPU_R3000
1289 select CPU_HAS_WB
1290 select CPU_SUPPORTS_32BIT_KERNEL
1291 select CPU_SUPPORTS_HIGHMEM
1292 help
1293 Please make sure to pick the right CPU type. Linux/MIPS is not
1294 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1295 *not* work on R4000 machines and vice versa. However, since most
1296 of the supported machines have an R4000 (or similar) CPU, R4x00
1297 might be a safe bet. If the resulting kernel does not work,
1298 try to recompile with R3000.
1299
1300 config CPU_TX39XX
1301 bool "R39XX"
1302 depends on SYS_HAS_CPU_TX39XX
1303 select CPU_SUPPORTS_32BIT_KERNEL
1304
1305 config CPU_VR41XX
1306 bool "R41xx"
1307 depends on SYS_HAS_CPU_VR41XX
1308 select CPU_SUPPORTS_32BIT_KERNEL
1309 select CPU_SUPPORTS_64BIT_KERNEL
1310 help
1311 The options selects support for the NEC VR4100 series of processors.
1312 Only choose this option if you have one of these processors as a
1313 kernel built with this option will not run on any other type of
1314 processor or vice versa.
1315
1316 config CPU_R4300
1317 bool "R4300"
1318 depends on SYS_HAS_CPU_R4300
1319 select CPU_SUPPORTS_32BIT_KERNEL
1320 select CPU_SUPPORTS_64BIT_KERNEL
1321 help
1322 MIPS Technologies R4300-series processors.
1323
1324 config CPU_R4X00
1325 bool "R4x00"
1326 depends on SYS_HAS_CPU_R4X00
1327 select CPU_SUPPORTS_32BIT_KERNEL
1328 select CPU_SUPPORTS_64BIT_KERNEL
1329 help
1330 MIPS Technologies R4000-series processors other than 4300, including
1331 the R4000, R4400, R4600, and 4700.
1332
1333 config CPU_TX49XX
1334 bool "R49XX"
1335 depends on SYS_HAS_CPU_TX49XX
1336 select CPU_HAS_PREFETCH
1337 select CPU_SUPPORTS_32BIT_KERNEL
1338 select CPU_SUPPORTS_64BIT_KERNEL
1339
1340 config CPU_R5000
1341 bool "R5000"
1342 depends on SYS_HAS_CPU_R5000
1343 select CPU_SUPPORTS_32BIT_KERNEL
1344 select CPU_SUPPORTS_64BIT_KERNEL
1345 help
1346 MIPS Technologies R5000-series processors other than the Nevada.
1347
1348 config CPU_R5432
1349 bool "R5432"
1350 depends on SYS_HAS_CPU_R5432
1351 select CPU_SUPPORTS_32BIT_KERNEL
1352 select CPU_SUPPORTS_64BIT_KERNEL
1353
1354 config CPU_R5500
1355 bool "R5500"
1356 depends on SYS_HAS_CPU_R5500
1357 select CPU_SUPPORTS_32BIT_KERNEL
1358 select CPU_SUPPORTS_64BIT_KERNEL
1359 select CPU_SUPPORTS_HUGEPAGES
1360 help
1361 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1362 instruction set.
1363
1364 config CPU_R6000
1365 bool "R6000"
1366 depends on EXPERIMENTAL
1367 depends on SYS_HAS_CPU_R6000
1368 select CPU_SUPPORTS_32BIT_KERNEL
1369 help
1370 MIPS Technologies R6000 and R6000A series processors. Note these
1371 processors are extremely rare and the support for them is incomplete.
1372
1373 config CPU_NEVADA
1374 bool "RM52xx"
1375 depends on SYS_HAS_CPU_NEVADA
1376 select CPU_SUPPORTS_32BIT_KERNEL
1377 select CPU_SUPPORTS_64BIT_KERNEL
1378 help
1379 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1380
1381 config CPU_R8000
1382 bool "R8000"
1383 depends on EXPERIMENTAL
1384 depends on SYS_HAS_CPU_R8000
1385 select CPU_HAS_PREFETCH
1386 select CPU_SUPPORTS_64BIT_KERNEL
1387 help
1388 MIPS Technologies R8000 processors. Note these processors are
1389 uncommon and the support for them is incomplete.
1390
1391 config CPU_R10000
1392 bool "R10000"
1393 depends on SYS_HAS_CPU_R10000
1394 select CPU_HAS_PREFETCH
1395 select CPU_SUPPORTS_32BIT_KERNEL
1396 select CPU_SUPPORTS_64BIT_KERNEL
1397 select CPU_SUPPORTS_HIGHMEM
1398 help
1399 MIPS Technologies R10000-series processors.
1400
1401 config CPU_RM7000
1402 bool "RM7000"
1403 depends on SYS_HAS_CPU_RM7000
1404 select CPU_HAS_PREFETCH
1405 select CPU_SUPPORTS_32BIT_KERNEL
1406 select CPU_SUPPORTS_64BIT_KERNEL
1407 select CPU_SUPPORTS_HIGHMEM
1408
1409 config CPU_RM9000
1410 bool "RM9000"
1411 depends on SYS_HAS_CPU_RM9000
1412 select CPU_HAS_PREFETCH
1413 select CPU_SUPPORTS_32BIT_KERNEL
1414 select CPU_SUPPORTS_64BIT_KERNEL
1415 select CPU_SUPPORTS_HIGHMEM
1416 select WEAK_ORDERING
1417
1418 config CPU_SB1
1419 bool "SB1"
1420 depends on SYS_HAS_CPU_SB1
1421 select CPU_SUPPORTS_32BIT_KERNEL
1422 select CPU_SUPPORTS_64BIT_KERNEL
1423 select CPU_SUPPORTS_HIGHMEM
1424 select WEAK_ORDERING
1425
1426 config CPU_CAVIUM_OCTEON
1427 bool "Cavium Octeon processor"
1428 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1429 select CPU_HAS_PREFETCH
1430 select CPU_SUPPORTS_64BIT_KERNEL
1431 select SYS_SUPPORTS_SMP
1432 select NR_CPUS_DEFAULT_16
1433 select WEAK_ORDERING
1434 select CPU_SUPPORTS_HIGHMEM
1435 select CPU_SUPPORTS_HUGEPAGES
1436 help
1437 The Cavium Octeon processor is a highly integrated chip containing
1438 many ethernet hardware widgets for networking tasks. The processor
1439 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1440 Full details can be found at http://www.caviumnetworks.com.
1441
1442 config CPU_BMIPS3300
1443 bool "BMIPS3300"
1444 depends on SYS_HAS_CPU_BMIPS3300
1445 select CPU_BMIPS
1446 help
1447 Broadcom BMIPS3300 processors.
1448
1449 config CPU_BMIPS4350
1450 bool "BMIPS4350"
1451 depends on SYS_HAS_CPU_BMIPS4350
1452 select CPU_BMIPS
1453 select SYS_SUPPORTS_SMP
1454 select SYS_SUPPORTS_HOTPLUG_CPU
1455 help
1456 Broadcom BMIPS4350 ("VIPER") processors.
1457
1458 config CPU_BMIPS4380
1459 bool "BMIPS4380"
1460 depends on SYS_HAS_CPU_BMIPS4380
1461 select CPU_BMIPS
1462 select SYS_SUPPORTS_SMP
1463 select SYS_SUPPORTS_HOTPLUG_CPU
1464 help
1465 Broadcom BMIPS4380 processors.
1466
1467 config CPU_BMIPS5000
1468 bool "BMIPS5000"
1469 depends on SYS_HAS_CPU_BMIPS5000
1470 select CPU_BMIPS
1471 select CPU_SUPPORTS_HIGHMEM
1472 select MIPS_CPU_SCACHE
1473 select SYS_SUPPORTS_SMP
1474 select SYS_SUPPORTS_HOTPLUG_CPU
1475 help
1476 Broadcom BMIPS5000 processors.
1477
1478 config CPU_XLR
1479 bool "Netlogic XLR SoC"
1480 depends on SYS_HAS_CPU_XLR
1481 select CPU_SUPPORTS_32BIT_KERNEL
1482 select CPU_SUPPORTS_64BIT_KERNEL
1483 select CPU_SUPPORTS_HIGHMEM
1484 select WEAK_ORDERING
1485 select WEAK_REORDERING_BEYOND_LLSC
1486 select CPU_SUPPORTS_HUGEPAGES
1487 help
1488 Netlogic Microsystems XLR/XLS processors.
1489
1490 config CPU_XLP
1491 bool "Netlogic XLP SoC"
1492 depends on SYS_HAS_CPU_XLP
1493 select CPU_SUPPORTS_32BIT_KERNEL
1494 select CPU_SUPPORTS_64BIT_KERNEL
1495 select CPU_SUPPORTS_HIGHMEM
1496 select CPU_HAS_LLSC
1497 select WEAK_ORDERING
1498 select WEAK_REORDERING_BEYOND_LLSC
1499 select CPU_HAS_PREFETCH
1500 help
1501 Netlogic Microsystems XLP processors.
1502 endchoice
1503
1504 if CPU_LOONGSON2F
1505 config CPU_NOP_WORKAROUNDS
1506 bool
1507
1508 config CPU_JUMP_WORKAROUNDS
1509 bool
1510
1511 config CPU_LOONGSON2F_WORKAROUNDS
1512 bool "Loongson 2F Workarounds"
1513 default y
1514 select CPU_NOP_WORKAROUNDS
1515 select CPU_JUMP_WORKAROUNDS
1516 help
1517 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1518 require workarounds. Without workarounds the system may hang
1519 unexpectedly. For more information please refer to the gas
1520 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1521
1522 Loongson 2F03 and later have fixed these issues and no workarounds
1523 are needed. The workarounds have no significant side effect on them
1524 but may decrease the performance of the system so this option should
1525 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1526 systems.
1527
1528 If unsure, please say Y.
1529 endif # CPU_LOONGSON2F
1530
1531 config SYS_SUPPORTS_ZBOOT
1532 bool
1533 select HAVE_KERNEL_GZIP
1534 select HAVE_KERNEL_BZIP2
1535 select HAVE_KERNEL_LZMA
1536 select HAVE_KERNEL_LZO
1537
1538 config SYS_SUPPORTS_ZBOOT_UART16550
1539 bool
1540 select SYS_SUPPORTS_ZBOOT
1541
1542 config CPU_LOONGSON2
1543 bool
1544 select CPU_SUPPORTS_32BIT_KERNEL
1545 select CPU_SUPPORTS_64BIT_KERNEL
1546 select CPU_SUPPORTS_HIGHMEM
1547
1548 config CPU_BMIPS
1549 bool
1550 select CPU_MIPS32
1551 select CPU_SUPPORTS_32BIT_KERNEL
1552 select DMA_NONCOHERENT
1553 select IRQ_CPU
1554 select SWAP_IO_SPACE
1555 select WEAK_ORDERING
1556
1557 config SYS_HAS_CPU_LOONGSON2E
1558 bool
1559
1560 config SYS_HAS_CPU_LOONGSON2F
1561 bool
1562 select CPU_SUPPORTS_CPUFREQ
1563 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1564 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1565
1566 config SYS_HAS_CPU_MIPS32_R1
1567 bool
1568
1569 config SYS_HAS_CPU_MIPS32_R2
1570 bool
1571
1572 config SYS_HAS_CPU_MIPS64_R1
1573 bool
1574
1575 config SYS_HAS_CPU_MIPS64_R2
1576 bool
1577
1578 config SYS_HAS_CPU_R3000
1579 bool
1580
1581 config SYS_HAS_CPU_TX39XX
1582 bool
1583
1584 config SYS_HAS_CPU_VR41XX
1585 bool
1586
1587 config SYS_HAS_CPU_R4300
1588 bool
1589
1590 config SYS_HAS_CPU_R4X00
1591 bool
1592
1593 config SYS_HAS_CPU_TX49XX
1594 bool
1595
1596 config SYS_HAS_CPU_R5000
1597 bool
1598
1599 config SYS_HAS_CPU_R5432
1600 bool
1601
1602 config SYS_HAS_CPU_R5500
1603 bool
1604
1605 config SYS_HAS_CPU_R6000
1606 bool
1607
1608 config SYS_HAS_CPU_NEVADA
1609 bool
1610
1611 config SYS_HAS_CPU_R8000
1612 bool
1613
1614 config SYS_HAS_CPU_R10000
1615 bool
1616
1617 config SYS_HAS_CPU_RM7000
1618 bool
1619
1620 config SYS_HAS_CPU_RM9000
1621 bool
1622
1623 config SYS_HAS_CPU_SB1
1624 bool
1625
1626 config SYS_HAS_CPU_CAVIUM_OCTEON
1627 bool
1628
1629 config SYS_HAS_CPU_BMIPS3300
1630 bool
1631
1632 config SYS_HAS_CPU_BMIPS4350
1633 bool
1634
1635 config SYS_HAS_CPU_BMIPS4380
1636 bool
1637
1638 config SYS_HAS_CPU_BMIPS5000
1639 bool
1640
1641 config SYS_HAS_CPU_XLR
1642 bool
1643
1644 config SYS_HAS_CPU_XLP
1645 bool
1646
1647 #
1648 # CPU may reorder R->R, R->W, W->R, W->W
1649 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1650 #
1651 config WEAK_ORDERING
1652 bool
1653
1654 #
1655 # CPU may reorder reads and writes beyond LL/SC
1656 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1657 #
1658 config WEAK_REORDERING_BEYOND_LLSC
1659 bool
1660 endmenu
1661
1662 #
1663 # These two indicate any level of the MIPS32 and MIPS64 architecture
1664 #
1665 config CPU_MIPS32
1666 bool
1667 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1668
1669 config CPU_MIPS64
1670 bool
1671 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1672
1673 #
1674 # These two indicate the revision of the architecture, either Release 1 or Release 2
1675 #
1676 config CPU_MIPSR1
1677 bool
1678 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1679
1680 config CPU_MIPSR2
1681 bool
1682 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1683
1684 config SYS_SUPPORTS_32BIT_KERNEL
1685 bool
1686 config SYS_SUPPORTS_64BIT_KERNEL
1687 bool
1688 config CPU_SUPPORTS_32BIT_KERNEL
1689 bool
1690 config CPU_SUPPORTS_64BIT_KERNEL
1691 bool
1692 config CPU_SUPPORTS_CPUFREQ
1693 bool
1694 config CPU_SUPPORTS_ADDRWINCFG
1695 bool
1696 config CPU_SUPPORTS_HUGEPAGES
1697 bool
1698 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1699 bool
1700 config MIPS_PGD_C0_CONTEXT
1701 bool
1702 default y if 64BIT && CPU_MIPSR2
1703
1704 #
1705 # Set to y for ptrace access to watch registers.
1706 #
1707 config HARDWARE_WATCHPOINTS
1708 bool
1709 default y if CPU_MIPSR1 || CPU_MIPSR2
1710
1711 menu "Kernel type"
1712
1713 choice
1714
1715 prompt "Kernel code model"
1716 help
1717 You should only select this option if you have a workload that
1718 actually benefits from 64-bit processing or if your machine has
1719 large memory. You will only be presented a single option in this
1720 menu if your system does not support both 32-bit and 64-bit kernels.
1721
1722 config 32BIT
1723 bool "32-bit kernel"
1724 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1725 select TRAD_SIGNALS
1726 help
1727 Select this option if you want to build a 32-bit kernel.
1728 config 64BIT
1729 bool "64-bit kernel"
1730 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1731 select HAVE_SYSCALL_WRAPPERS
1732 help
1733 Select this option if you want to build a 64-bit kernel.
1734
1735 endchoice
1736
1737 choice
1738 prompt "Kernel page size"
1739 default PAGE_SIZE_4KB
1740
1741 config PAGE_SIZE_4KB
1742 bool "4kB"
1743 depends on !CPU_LOONGSON2
1744 help
1745 This option select the standard 4kB Linux page size. On some
1746 R3000-family processors this is the only available page size. Using
1747 4kB page size will minimize memory consumption and is therefore
1748 recommended for low memory systems.
1749
1750 config PAGE_SIZE_8KB
1751 bool "8kB"
1752 depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON
1753 help
1754 Using 8kB page size will result in higher performance kernel at
1755 the price of higher memory consumption. This option is available
1756 only on R8000 and cnMIPS processors. Note that you will need a
1757 suitable Linux distribution to support this.
1758
1759 config PAGE_SIZE_16KB
1760 bool "16kB"
1761 depends on !CPU_R3000 && !CPU_TX39XX
1762 help
1763 Using 16kB page size will result in higher performance kernel at
1764 the price of higher memory consumption. This option is available on
1765 all non-R3000 family processors. Note that you will need a suitable
1766 Linux distribution to support this.
1767
1768 config PAGE_SIZE_32KB
1769 bool "32kB"
1770 depends on CPU_CAVIUM_OCTEON
1771 help
1772 Using 32kB page size will result in higher performance kernel at
1773 the price of higher memory consumption. This option is available
1774 only on cnMIPS cores. Note that you will need a suitable Linux
1775 distribution to support this.
1776
1777 config PAGE_SIZE_64KB
1778 bool "64kB"
1779 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1780 help
1781 Using 64kB page size will result in higher performance kernel at
1782 the price of higher memory consumption. This option is available on
1783 all non-R3000 family processor. Not that at the time of this
1784 writing this option is still high experimental.
1785
1786 endchoice
1787
1788 config FORCE_MAX_ZONEORDER
1789 int "Maximum zone order"
1790 range 13 64 if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_32KB
1791 default "13" if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_32KB
1792 range 12 64 if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_16KB
1793 default "12" if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_16KB
1794 range 11 64
1795 default "11"
1796 help
1797 The kernel memory allocator divides physically contiguous memory
1798 blocks into "zones", where each zone is a power of two number of
1799 pages. This option selects the largest power of two that the kernel
1800 keeps in the memory allocator. If you need to allocate very large
1801 blocks of physically contiguous memory, then you may need to
1802 increase this value.
1803
1804 This config option is actually maximum order plus one. For example,
1805 a value of 11 means that the largest free memory block is 2^10 pages.
1806
1807 The page size is not necessarily 4KB. Keep this in mind
1808 when choosing a value for this option.
1809
1810 config BOARD_SCACHE
1811 bool
1812
1813 config IP22_CPU_SCACHE
1814 bool
1815 select BOARD_SCACHE
1816
1817 #
1818 # Support for a MIPS32 / MIPS64 style S-caches
1819 #
1820 config MIPS_CPU_SCACHE
1821 bool
1822 select BOARD_SCACHE
1823
1824 config R5000_CPU_SCACHE
1825 bool
1826 select BOARD_SCACHE
1827
1828 config RM7000_CPU_SCACHE
1829 bool
1830 select BOARD_SCACHE
1831
1832 config SIBYTE_DMA_PAGEOPS
1833 bool "Use DMA to clear/copy pages"
1834 depends on CPU_SB1
1835 help
1836 Instead of using the CPU to zero and copy pages, use a Data Mover
1837 channel. These DMA channels are otherwise unused by the standard
1838 SiByte Linux port. Seems to give a small performance benefit.
1839
1840 config CPU_HAS_PREFETCH
1841 bool
1842
1843 choice
1844 prompt "MIPS MT options"
1845
1846 config MIPS_MT_DISABLED
1847 bool "Disable multithreading support."
1848 help
1849 Use this option if your workload can't take advantage of
1850 MIPS hardware multithreading support. On systems that don't have
1851 the option of an MT-enabled processor this option will be the only
1852 option in this menu.
1853
1854 config MIPS_MT_SMP
1855 bool "Use 1 TC on each available VPE for SMP"
1856 depends on SYS_SUPPORTS_MULTITHREADING
1857 select CPU_MIPSR2_IRQ_VI
1858 select CPU_MIPSR2_IRQ_EI
1859 select MIPS_MT
1860 select NR_CPUS_DEFAULT_2
1861 select SMP
1862 select SYS_SUPPORTS_SCHED_SMT if SMP
1863 select SYS_SUPPORTS_SMP
1864 select SMP_UP
1865 help
1866 This is a kernel model which is known a VSMP but lately has been
1867 marketesed into SMVP.
1868 Virtual SMP uses the processor's VPEs to implement virtual
1869 processors. In currently available configuration of the 34K processor
1870 this allows for a dual processor. Both processors will share the same
1871 primary caches; each will obtain the half of the TLB for it's own
1872 exclusive use. For a layman this model can be described as similar to
1873 what Intel calls Hyperthreading.
1874
1875 For further information see http://www.linux-mips.org/wiki/34K#VSMP
1876
1877 config MIPS_MT_SMTC
1878 bool "SMTC: Use all TCs on all VPEs for SMP"
1879 depends on CPU_MIPS32_R2
1880 #depends on CPU_MIPS64_R2 # once there is hardware ...
1881 depends on SYS_SUPPORTS_MULTITHREADING
1882 select CPU_MIPSR2_IRQ_VI
1883 select CPU_MIPSR2_IRQ_EI
1884 select MIPS_MT
1885 select NR_CPUS_DEFAULT_8
1886 select SMP
1887 select SYS_SUPPORTS_SMP
1888 select SMP_UP
1889 help
1890 This is a kernel model which is known a SMTC or lately has been
1891 marketesed into SMVP.
1892 is presenting the available TC's of the core as processors to Linux.
1893 On currently available 34K processors this means a Linux system will
1894 see up to 5 processors. The implementation of the SMTC kernel differs
1895 significantly from VSMP and cannot efficiently coexist in the same
1896 kernel binary so the choice between VSMP and SMTC is a compile time
1897 decision.
1898
1899 For further information see http://www.linux-mips.org/wiki/34K#SMTC
1900
1901 endchoice
1902
1903 config MIPS_MT
1904 bool
1905
1906 config SCHED_SMT
1907 bool "SMT (multithreading) scheduler support"
1908 depends on SYS_SUPPORTS_SCHED_SMT
1909 default n
1910 help
1911 SMT scheduler support improves the CPU scheduler's decision making
1912 when dealing with MIPS MT enabled cores at a cost of slightly
1913 increased overhead in some places. If unsure say N here.
1914
1915 config SYS_SUPPORTS_SCHED_SMT
1916 bool
1917
1918
1919 config SYS_SUPPORTS_MULTITHREADING
1920 bool
1921
1922 config MIPS_MT_FPAFF
1923 bool "Dynamic FPU affinity for FP-intensive threads"
1924 default y
1925 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1926
1927 config MIPS_VPE_LOADER
1928 bool "VPE loader support."
1929 depends on SYS_SUPPORTS_MULTITHREADING
1930 select CPU_MIPSR2_IRQ_VI
1931 select CPU_MIPSR2_IRQ_EI
1932 select MIPS_MT
1933 help
1934 Includes a loader for loading an elf relocatable object
1935 onto another VPE and running it.
1936
1937 config MIPS_MT_SMTC_IM_BACKSTOP
1938 bool "Use per-TC register bits as backstop for inhibited IM bits"
1939 depends on MIPS_MT_SMTC
1940 default n
1941 help
1942 To support multiple TC microthreads acting as "CPUs" within
1943 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1944 during interrupt handling. To support legacy drivers and interrupt
1945 controller management code, SMTC has a "backstop" to track and
1946 if necessary restore the interrupt mask. This has some performance
1947 impact on interrupt service overhead.
1948
1949 config MIPS_MT_SMTC_IRQAFF
1950 bool "Support IRQ affinity API"
1951 depends on MIPS_MT_SMTC
1952 default n
1953 help
1954 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1955 for SMTC Linux kernel. Requires platform support, of which
1956 an example can be found in the MIPS kernel i8259 and Malta
1957 platform code. Adds some overhead to interrupt dispatch, and
1958 should be used only if you know what you are doing.
1959
1960 config MIPS_VPE_LOADER_TOM
1961 bool "Load VPE program into memory hidden from linux"
1962 depends on MIPS_VPE_LOADER
1963 default y
1964 help
1965 The loader can use memory that is present but has been hidden from
1966 Linux using the kernel command line option "mem=xxMB". It's up to
1967 you to ensure the amount you put in the option and the space your
1968 program requires is less or equal to the amount physically present.
1969
1970 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1971 config MIPS_VPE_APSP_API
1972 bool "Enable support for AP/SP API (RTLX)"
1973 depends on MIPS_VPE_LOADER
1974 help
1975
1976 config MIPS_APSP_KSPD
1977 bool "Enable KSPD"
1978 depends on MIPS_VPE_APSP_API
1979 default y
1980 help
1981 KSPD is a kernel daemon that accepts syscall requests from the SP
1982 side, actions them and returns the results. It also handles the
1983 "exit" syscall notifying other kernel modules the SP program is
1984 exiting. You probably want to say yes here.
1985
1986 config MIPS_CMP
1987 bool "MIPS CMP framework support"
1988 depends on SYS_SUPPORTS_MIPS_CMP
1989 select SYNC_R4K
1990 select SYS_SUPPORTS_SMP
1991 select SYS_SUPPORTS_SCHED_SMT if SMP
1992 select WEAK_ORDERING
1993 default n
1994 help
1995 This is a placeholder option for the GCMP work. It will need to
1996 be handled differently...
1997
1998 config SB1_PASS_1_WORKAROUNDS
1999 bool
2000 depends on CPU_SB1_PASS_1
2001 default y
2002
2003 config SB1_PASS_2_WORKAROUNDS
2004 bool
2005 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2006 default y
2007
2008 config SB1_PASS_2_1_WORKAROUNDS
2009 bool
2010 depends on CPU_SB1 && CPU_SB1_PASS_2
2011 default y
2012
2013 config 64BIT_PHYS_ADDR
2014 bool
2015
2016 config ARCH_PHYS_ADDR_T_64BIT
2017 def_bool 64BIT_PHYS_ADDR
2018
2019 config CPU_HAS_SMARTMIPS
2020 depends on SYS_SUPPORTS_SMARTMIPS
2021 bool "Support for the SmartMIPS ASE"
2022 help
2023 SmartMIPS is a extension of the MIPS32 architecture aimed at
2024 increased security at both hardware and software level for
2025 smartcards. Enabling this option will allow proper use of the
2026 SmartMIPS instructions by Linux applications. However a kernel with
2027 this option will not work on a MIPS core without SmartMIPS core. If
2028 you don't know you probably don't have SmartMIPS and should say N
2029 here.
2030
2031 config CPU_HAS_WB
2032 bool
2033
2034 config XKS01
2035 bool
2036
2037 #
2038 # Vectored interrupt mode is an R2 feature
2039 #
2040 config CPU_MIPSR2_IRQ_VI
2041 bool
2042
2043 #
2044 # Extended interrupt mode is an R2 feature
2045 #
2046 config CPU_MIPSR2_IRQ_EI
2047 bool
2048
2049 config CPU_HAS_SYNC
2050 bool
2051 depends on !CPU_R3000
2052 default y
2053
2054 config GENERIC_CLOCKEVENTS_BROADCAST
2055 bool
2056
2057 #
2058 # CPU non-features
2059 #
2060 config CPU_DADDI_WORKAROUNDS
2061 bool
2062
2063 config CPU_R4000_WORKAROUNDS
2064 bool
2065 select CPU_R4400_WORKAROUNDS
2066
2067 config CPU_R4400_WORKAROUNDS
2068 bool
2069
2070 #
2071 # - Highmem only makes sense for the 32-bit kernel.
2072 # - The current highmem code will only work properly on physically indexed
2073 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2074 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2075 # moment we protect the user and offer the highmem option only on machines
2076 # where it's known to be safe. This will not offer highmem on a few systems
2077 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2078 # indexed CPUs but we're playing safe.
2079 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2080 # know they might have memory configurations that could make use of highmem
2081 # support.
2082 #
2083 config HIGHMEM
2084 bool "High Memory Support"
2085 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
2086
2087 config CPU_SUPPORTS_HIGHMEM
2088 bool
2089
2090 config SYS_SUPPORTS_HIGHMEM
2091 bool
2092
2093 config SYS_SUPPORTS_SMARTMIPS
2094 bool
2095
2096 config ARCH_FLATMEM_ENABLE
2097 def_bool y
2098 depends on !NUMA && !CPU_LOONGSON2
2099
2100 config ARCH_DISCONTIGMEM_ENABLE
2101 bool
2102 default y if SGI_IP27
2103 help
2104 Say Y to support efficient handling of discontiguous physical memory,
2105 for architectures which are either NUMA (Non-Uniform Memory Access)
2106 or have huge holes in the physical address space for other reasons.
2107 See <file:Documentation/vm/numa> for more.
2108
2109 config ARCH_SPARSEMEM_ENABLE
2110 bool
2111 select SPARSEMEM_STATIC
2112
2113 config NUMA
2114 bool "NUMA Support"
2115 depends on SYS_SUPPORTS_NUMA
2116 help
2117 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2118 Access). This option improves performance on systems with more
2119 than two nodes; on two node systems it is generally better to
2120 leave it disabled; on single node systems disable this option
2121 disabled.
2122
2123 config SYS_SUPPORTS_NUMA
2124 bool
2125
2126 config NODES_SHIFT
2127 int
2128 default "6"
2129 depends on NEED_MULTIPLE_NODES
2130
2131 config HW_PERF_EVENTS
2132 bool "Enable hardware performance counter support for perf events"
2133 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON)
2134 default y
2135 help
2136 Enable hardware performance counter support for perf events. If
2137 disabled, perf events will use software events only.
2138
2139 source "mm/Kconfig"
2140
2141 config SMP
2142 bool "Multi-Processing support"
2143 depends on SYS_SUPPORTS_SMP
2144 select IRQ_PER_CPU
2145 select USE_GENERIC_SMP_HELPERS
2146 help
2147 This enables support for systems with more than one CPU. If you have
2148 a system with only one CPU, like most personal computers, say N. If
2149 you have a system with more than one CPU, say Y.
2150
2151 If you say N here, the kernel will run on single and multiprocessor
2152 machines, but will use only one CPU of a multiprocessor machine. If
2153 you say Y here, the kernel will run on many, but not all,
2154 singleprocessor machines. On a singleprocessor machine, the kernel
2155 will run faster if you say N here.
2156
2157 People using multiprocessor machines who say Y here should also say
2158 Y to "Enhanced Real Time Clock Support", below.
2159
2160 See also the SMP-HOWTO available at
2161 <http://www.tldp.org/docs.html#howto>.
2162
2163 If you don't know what to do here, say N.
2164
2165 config SMP_UP
2166 bool
2167
2168 config SYS_SUPPORTS_MIPS_CMP
2169 bool
2170
2171 config SYS_SUPPORTS_SMP
2172 bool
2173
2174 config NR_CPUS_DEFAULT_1
2175 bool
2176
2177 config NR_CPUS_DEFAULT_2
2178 bool
2179
2180 config NR_CPUS_DEFAULT_4
2181 bool
2182
2183 config NR_CPUS_DEFAULT_8
2184 bool
2185
2186 config NR_CPUS_DEFAULT_16
2187 bool
2188
2189 config NR_CPUS_DEFAULT_32
2190 bool
2191
2192 config NR_CPUS_DEFAULT_64
2193 bool
2194
2195 config NR_CPUS
2196 int "Maximum number of CPUs (2-64)"
2197 range 1 64 if NR_CPUS_DEFAULT_1
2198 depends on SMP
2199 default "1" if NR_CPUS_DEFAULT_1
2200 default "2" if NR_CPUS_DEFAULT_2
2201 default "4" if NR_CPUS_DEFAULT_4
2202 default "8" if NR_CPUS_DEFAULT_8
2203 default "16" if NR_CPUS_DEFAULT_16
2204 default "32" if NR_CPUS_DEFAULT_32
2205 default "64" if NR_CPUS_DEFAULT_64
2206 help
2207 This allows you to specify the maximum number of CPUs which this
2208 kernel will support. The maximum supported value is 32 for 32-bit
2209 kernel and 64 for 64-bit kernels; the minimum value which makes
2210 sense is 1 for Qemu (useful only for kernel debugging purposes)
2211 and 2 for all others.
2212
2213 This is purely to save memory - each supported CPU adds
2214 approximately eight kilobytes to the kernel image. For best
2215 performance should round up your number of processors to the next
2216 power of two.
2217
2218 source "kernel/time/Kconfig"
2219
2220 #
2221 # Timer Interrupt Frequency Configuration
2222 #
2223
2224 choice
2225 prompt "Timer frequency"
2226 default HZ_250
2227 help
2228 Allows the configuration of the timer frequency.
2229
2230 config HZ_48
2231 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2232
2233 config HZ_100
2234 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2235
2236 config HZ_128
2237 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2238
2239 config HZ_250
2240 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2241
2242 config HZ_256
2243 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2244
2245 config HZ_1000
2246 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2247
2248 config HZ_1024
2249 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2250
2251 endchoice
2252
2253 config SYS_SUPPORTS_48HZ
2254 bool
2255
2256 config SYS_SUPPORTS_100HZ
2257 bool
2258
2259 config SYS_SUPPORTS_128HZ
2260 bool
2261
2262 config SYS_SUPPORTS_250HZ
2263 bool
2264
2265 config SYS_SUPPORTS_256HZ
2266 bool
2267
2268 config SYS_SUPPORTS_1000HZ
2269 bool
2270
2271 config SYS_SUPPORTS_1024HZ
2272 bool
2273
2274 config SYS_SUPPORTS_ARBIT_HZ
2275 bool
2276 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2277 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2278 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2279 !SYS_SUPPORTS_1024HZ
2280
2281 config HZ
2282 int
2283 default 48 if HZ_48
2284 default 100 if HZ_100
2285 default 128 if HZ_128
2286 default 250 if HZ_250
2287 default 256 if HZ_256
2288 default 1000 if HZ_1000
2289 default 1024 if HZ_1024
2290
2291 source "kernel/Kconfig.preempt"
2292
2293 config KEXEC
2294 bool "Kexec system call (EXPERIMENTAL)"
2295 depends on EXPERIMENTAL
2296 help
2297 kexec is a system call that implements the ability to shutdown your
2298 current kernel, and to start another kernel. It is like a reboot
2299 but it is independent of the system firmware. And like a reboot
2300 you can start any kernel with it, not just Linux.
2301
2302 The name comes from the similarity to the exec system call.
2303
2304 It is an ongoing process to be certain the hardware in a machine
2305 is properly shutdown, so do not be surprised if this code does not
2306 initially work for you. It may help to enable device hotplugging
2307 support. As of this writing the exact hardware interface is
2308 strongly in flux, so no good recommendation can be made.
2309
2310 config SECCOMP
2311 bool "Enable seccomp to safely compute untrusted bytecode"
2312 depends on PROC_FS
2313 default y
2314 help
2315 This kernel feature is useful for number crunching applications
2316 that may need to compute untrusted bytecode during their
2317 execution. By using pipes or other transports made available to
2318 the process as file descriptors supporting the read/write
2319 syscalls, it's possible to isolate those applications in
2320 their own address space using seccomp. Once seccomp is
2321 enabled via /proc/<pid>/seccomp, it cannot be disabled
2322 and the task is only allowed to execute a few safe syscalls
2323 defined by each seccomp mode.
2324
2325 If unsure, say Y. Only embedded should say N here.
2326
2327 config USE_OF
2328 bool "Flattened Device Tree support"
2329 select OF
2330 select OF_EARLY_FLATTREE
2331 select IRQ_DOMAIN
2332 help
2333 Include support for flattened device tree machine descriptions.
2334
2335 endmenu
2336
2337 config LOCKDEP_SUPPORT
2338 bool
2339 default y
2340
2341 config STACKTRACE_SUPPORT
2342 bool
2343 default y
2344
2345 source "init/Kconfig"
2346
2347 source "kernel/Kconfig.freezer"
2348
2349 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2350
2351 config HW_HAS_EISA
2352 bool
2353 config HW_HAS_PCI
2354 bool
2355
2356 config PCI
2357 bool "Support for PCI controller"
2358 depends on HW_HAS_PCI
2359 select PCI_DOMAINS
2360 select GENERIC_PCI_IOMAP
2361 select NO_GENERIC_PCI_IOPORT_MAP
2362 help
2363 Find out whether you have a PCI motherboard. PCI is the name of a
2364 bus system, i.e. the way the CPU talks to the other stuff inside
2365 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2366 say Y, otherwise N.
2367
2368 config PCI_DOMAINS
2369 bool
2370
2371 source "drivers/pci/Kconfig"
2372
2373 #
2374 # ISA support is now enabled via select. Too many systems still have the one
2375 # or other ISA chip on the board that users don't know about so don't expect
2376 # users to choose the right thing ...
2377 #
2378 config ISA
2379 bool
2380
2381 config EISA
2382 bool "EISA support"
2383 depends on HW_HAS_EISA
2384 select ISA
2385 select GENERIC_ISA_DMA
2386 ---help---
2387 The Extended Industry Standard Architecture (EISA) bus was
2388 developed as an open alternative to the IBM MicroChannel bus.
2389
2390 The EISA bus provided some of the features of the IBM MicroChannel
2391 bus while maintaining backward compatibility with cards made for
2392 the older ISA bus. The EISA bus saw limited use between 1988 and
2393 1995 when it was made obsolete by the PCI bus.
2394
2395 Say Y here if you are building a kernel for an EISA-based machine.
2396
2397 Otherwise, say N.
2398
2399 source "drivers/eisa/Kconfig"
2400
2401 config TC
2402 bool "TURBOchannel support"
2403 depends on MACH_DECSTATION
2404 help
2405 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2406 processors. TURBOchannel programming specifications are available
2407 at:
2408 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2409 and:
2410 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2411 Linux driver support status is documented at:
2412 <http://www.linux-mips.org/wiki/DECstation>
2413
2414 config MMU
2415 bool
2416 default y
2417
2418 config I8253
2419 bool
2420 select CLKSRC_I8253
2421 select CLKEVT_I8253
2422 select MIPS_EXTERNAL_TIMER
2423
2424 config ZONE_DMA32
2425 bool
2426
2427 source "drivers/pcmcia/Kconfig"
2428
2429 source "drivers/pci/hotplug/Kconfig"
2430
2431 config RAPIDIO
2432 bool "RapidIO support"
2433 depends on PCI
2434 default n
2435 help
2436 If you say Y here, the kernel will include drivers and
2437 infrastructure code to support RapidIO interconnect devices.
2438
2439 source "drivers/rapidio/Kconfig"
2440
2441 endmenu
2442
2443 menu "Executable file formats"
2444
2445 source "fs/Kconfig.binfmt"
2446
2447 config TRAD_SIGNALS
2448 bool
2449
2450 config MIPS32_COMPAT
2451 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2452 depends on 64BIT
2453 help
2454 Select this option if you want Linux/MIPS 32-bit binary
2455 compatibility. Since all software available for Linux/MIPS is
2456 currently 32-bit you should say Y here.
2457
2458 config COMPAT
2459 bool
2460 depends on MIPS32_COMPAT
2461 select ARCH_WANT_OLD_COMPAT_IPC
2462 default y
2463
2464 config SYSVIPC_COMPAT
2465 bool
2466 depends on COMPAT && SYSVIPC
2467 default y
2468
2469 config MIPS32_O32
2470 bool "Kernel support for o32 binaries"
2471 depends on MIPS32_COMPAT
2472 help
2473 Select this option if you want to run o32 binaries. These are pure
2474 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2475 existing binaries are in this format.
2476
2477 If unsure, say Y.
2478
2479 config MIPS32_N32
2480 bool "Kernel support for n32 binaries"
2481 depends on MIPS32_COMPAT
2482 help
2483 Select this option if you want to run n32 binaries. These are
2484 64-bit binaries using 32-bit quantities for addressing and certain
2485 data that would normally be 64-bit. They are used in special
2486 cases.
2487
2488 If unsure, say N.
2489
2490 config BINFMT_ELF32
2491 bool
2492 default y if MIPS32_O32 || MIPS32_N32
2493
2494 endmenu
2495
2496 menu "Power management options"
2497
2498 config ARCH_HIBERNATION_POSSIBLE
2499 def_bool y
2500 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2501
2502 config ARCH_SUSPEND_POSSIBLE
2503 def_bool y
2504 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2505
2506 source "kernel/power/Kconfig"
2507
2508 endmenu
2509
2510 source "arch/mips/kernel/cpufreq/Kconfig"
2511
2512 source "net/Kconfig"
2513
2514 source "drivers/Kconfig"
2515
2516 source "fs/Kconfig"
2517
2518 source "arch/mips/Kconfig.debug"
2519
2520 source "security/Kconfig"
2521
2522 source "crypto/Kconfig"
2523
2524 source "lib/Kconfig"