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1 config MIPS
2 bool
3 default y
4 select ARCH_MIGHT_HAVE_PC_PARPORT
5 select ARCH_MIGHT_HAVE_PC_SERIO
6 select HAVE_CONTEXT_TRACKING
7 select HAVE_GENERIC_DMA_COHERENT
8 select HAVE_IDE
9 select HAVE_OPROFILE
10 select HAVE_PERF_EVENTS
11 select PERF_USE_VMALLOC
12 select HAVE_ARCH_KGDB
13 select HAVE_ARCH_SECCOMP_FILTER
14 select HAVE_ARCH_TRACEHOOK
15 select ARCH_HAVE_CUSTOM_GPIO_H
16 select HAVE_FUNCTION_TRACER
17 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
18 select HAVE_DYNAMIC_FTRACE
19 select HAVE_FTRACE_MCOUNT_RECORD
20 select HAVE_C_RECORDMCOUNT
21 select HAVE_FUNCTION_GRAPH_TRACER
22 select HAVE_KPROBES
23 select HAVE_KRETPROBES
24 select HAVE_DEBUG_KMEMLEAK
25 select HAVE_SYSCALL_TRACEPOINTS
26 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
27 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
28 select RTC_LIB if !MACH_LOONGSON
29 select GENERIC_ATOMIC64 if !64BIT
30 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
31 select HAVE_DMA_ATTRS
32 select HAVE_DMA_API_DEBUG
33 select GENERIC_IRQ_PROBE
34 select GENERIC_IRQ_SHOW
35 select GENERIC_PCI_IOMAP
36 select HAVE_ARCH_JUMP_LABEL
37 select ARCH_WANT_IPC_PARSE_VERSION
38 select IRQ_FORCED_THREADING
39 select HAVE_MEMBLOCK
40 select HAVE_MEMBLOCK_NODE_MAP
41 select ARCH_DISCARD_MEMBLOCK
42 select GENERIC_SMP_IDLE_THREAD
43 select BUILDTIME_EXTABLE_SORT
44 select GENERIC_CLOCKEVENTS
45 select GENERIC_CMOS_UPDATE
46 select HAVE_MOD_ARCH_SPECIFIC
47 select VIRT_TO_BUS
48 select MODULES_USE_ELF_REL if MODULES
49 select MODULES_USE_ELF_RELA if MODULES && 64BIT
50 select CLONE_BACKWARDS
51 select HAVE_DEBUG_STACKOVERFLOW
52 select HAVE_CC_STACKPROTECTOR
53
54 menu "Machine selection"
55
56 choice
57 prompt "System type"
58 default SGI_IP22
59
60 config MIPS_ALCHEMY
61 bool "Alchemy processor based machines"
62 select 64BIT_PHYS_ADDR
63 select CEVT_R4K
64 select CSRC_R4K
65 select IRQ_CPU
66 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is
67 select SYS_HAS_CPU_MIPS32_R1
68 select SYS_SUPPORTS_32BIT_KERNEL
69 select SYS_SUPPORTS_APM_EMULATION
70 select ARCH_REQUIRE_GPIOLIB
71 select SYS_SUPPORTS_ZBOOT
72
73 config AR7
74 bool "Texas Instruments AR7"
75 select BOOT_ELF32
76 select DMA_NONCOHERENT
77 select CEVT_R4K
78 select CSRC_R4K
79 select IRQ_CPU
80 select NO_EXCEPT_FILL
81 select SWAP_IO_SPACE
82 select SYS_HAS_CPU_MIPS32_R1
83 select SYS_HAS_EARLY_PRINTK
84 select SYS_SUPPORTS_32BIT_KERNEL
85 select SYS_SUPPORTS_LITTLE_ENDIAN
86 select SYS_SUPPORTS_ZBOOT_UART16550
87 select ARCH_REQUIRE_GPIOLIB
88 select VLYNQ
89 select HAVE_CLK
90 help
91 Support for the Texas Instruments AR7 System-on-a-Chip
92 family: TNETD7100, 7200 and 7300.
93
94 config ATH79
95 bool "Atheros AR71XX/AR724X/AR913X based boards"
96 select ARCH_REQUIRE_GPIOLIB
97 select BOOT_RAW
98 select CEVT_R4K
99 select CSRC_R4K
100 select DMA_NONCOHERENT
101 select HAVE_CLK
102 select CLKDEV_LOOKUP
103 select IRQ_CPU
104 select MIPS_MACHINE
105 select SYS_HAS_CPU_MIPS32_R2
106 select SYS_HAS_EARLY_PRINTK
107 select SYS_SUPPORTS_32BIT_KERNEL
108 select SYS_SUPPORTS_BIG_ENDIAN
109 help
110 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
111
112 config BCM47XX
113 bool "Broadcom BCM47XX based boards"
114 select ARCH_WANT_OPTIONAL_GPIOLIB
115 select BOOT_RAW
116 select CEVT_R4K
117 select CSRC_R4K
118 select DMA_NONCOHERENT
119 select HW_HAS_PCI
120 select IRQ_CPU
121 select SYS_HAS_CPU_MIPS32_R1
122 select NO_EXCEPT_FILL
123 select SYS_SUPPORTS_32BIT_KERNEL
124 select SYS_SUPPORTS_LITTLE_ENDIAN
125 select SYS_HAS_EARLY_PRINTK
126 select USE_GENERIC_EARLY_PRINTK_8250
127 help
128 Support for BCM47XX based boards
129
130 config BCM63XX
131 bool "Broadcom BCM63XX based boards"
132 select BOOT_RAW
133 select CEVT_R4K
134 select CSRC_R4K
135 select DMA_NONCOHERENT
136 select IRQ_CPU
137 select SYS_SUPPORTS_32BIT_KERNEL
138 select SYS_SUPPORTS_BIG_ENDIAN
139 select SYS_HAS_EARLY_PRINTK
140 select SWAP_IO_SPACE
141 select ARCH_REQUIRE_GPIOLIB
142 select HAVE_CLK
143 select MIPS_L1_CACHE_SHIFT_4
144 help
145 Support for BCM63XX based boards
146
147 config MIPS_COBALT
148 bool "Cobalt Server"
149 select CEVT_R4K
150 select CSRC_R4K
151 select CEVT_GT641XX
152 select DMA_NONCOHERENT
153 select HW_HAS_PCI
154 select I8253
155 select I8259
156 select IRQ_CPU
157 select IRQ_GT641XX
158 select PCI_GT64XXX_PCI0
159 select PCI
160 select SYS_HAS_CPU_NEVADA
161 select SYS_HAS_EARLY_PRINTK
162 select SYS_SUPPORTS_32BIT_KERNEL
163 select SYS_SUPPORTS_64BIT_KERNEL
164 select SYS_SUPPORTS_LITTLE_ENDIAN
165 select USE_GENERIC_EARLY_PRINTK_8250
166
167 config MACH_DECSTATION
168 bool "DECstations"
169 select BOOT_ELF32
170 select CEVT_DS1287
171 select CEVT_R4K
172 select CSRC_IOASIC
173 select CSRC_R4K
174 select CPU_DADDI_WORKAROUNDS if 64BIT
175 select CPU_R4000_WORKAROUNDS if 64BIT
176 select CPU_R4400_WORKAROUNDS if 64BIT
177 select DMA_NONCOHERENT
178 select NO_IOPORT
179 select IRQ_CPU
180 select SYS_HAS_CPU_R3000
181 select SYS_HAS_CPU_R4X00
182 select SYS_SUPPORTS_32BIT_KERNEL
183 select SYS_SUPPORTS_64BIT_KERNEL
184 select SYS_SUPPORTS_LITTLE_ENDIAN
185 select SYS_SUPPORTS_128HZ
186 select SYS_SUPPORTS_256HZ
187 select SYS_SUPPORTS_1024HZ
188 select MIPS_L1_CACHE_SHIFT_4
189 help
190 This enables support for DEC's MIPS based workstations. For details
191 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
192 DECstation porting pages on <http://decstation.unix-ag.org/>.
193
194 If you have one of the following DECstation Models you definitely
195 want to choose R4xx0 for the CPU Type:
196
197 DECstation 5000/50
198 DECstation 5000/150
199 DECstation 5000/260
200 DECsystem 5900/260
201
202 otherwise choose R3000.
203
204 config MACH_JAZZ
205 bool "Jazz family of machines"
206 select FW_ARC
207 select FW_ARC32
208 select ARCH_MAY_HAVE_PC_FDC
209 select CEVT_R4K
210 select CSRC_R4K
211 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
212 select GENERIC_ISA_DMA
213 select HAVE_PCSPKR_PLATFORM
214 select IRQ_CPU
215 select I8253
216 select I8259
217 select ISA
218 select SYS_HAS_CPU_R4X00
219 select SYS_SUPPORTS_32BIT_KERNEL
220 select SYS_SUPPORTS_64BIT_KERNEL
221 select SYS_SUPPORTS_100HZ
222 help
223 This a family of machines based on the MIPS R4030 chipset which was
224 used by several vendors to build RISC/os and Windows NT workstations.
225 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
226 Olivetti M700-10 workstations.
227
228 config MACH_JZ4740
229 bool "Ingenic JZ4740 based machines"
230 select SYS_HAS_CPU_MIPS32_R1
231 select SYS_SUPPORTS_32BIT_KERNEL
232 select SYS_SUPPORTS_LITTLE_ENDIAN
233 select SYS_SUPPORTS_ZBOOT_UART16550
234 select DMA_NONCOHERENT
235 select IRQ_CPU
236 select ARCH_REQUIRE_GPIOLIB
237 select SYS_HAS_EARLY_PRINTK
238 select HAVE_CLK
239 select GENERIC_IRQ_CHIP
240
241 config LANTIQ
242 bool "Lantiq based platforms"
243 select DMA_NONCOHERENT
244 select IRQ_CPU
245 select CEVT_R4K
246 select CSRC_R4K
247 select SYS_HAS_CPU_MIPS32_R1
248 select SYS_HAS_CPU_MIPS32_R2
249 select SYS_SUPPORTS_BIG_ENDIAN
250 select SYS_SUPPORTS_32BIT_KERNEL
251 select SYS_SUPPORTS_MULTITHREADING
252 select SYS_HAS_EARLY_PRINTK
253 select ARCH_REQUIRE_GPIOLIB
254 select SWAP_IO_SPACE
255 select BOOT_RAW
256 select HAVE_MACH_CLKDEV
257 select CLKDEV_LOOKUP
258 select USE_OF
259 select PINCTRL
260 select PINCTRL_LANTIQ
261
262 config LASAT
263 bool "LASAT Networks platforms"
264 select CEVT_R4K
265 select CSRC_R4K
266 select DMA_NONCOHERENT
267 select SYS_HAS_EARLY_PRINTK
268 select HW_HAS_PCI
269 select IRQ_CPU
270 select PCI_GT64XXX_PCI0
271 select MIPS_NILE4
272 select R5000_CPU_SCACHE
273 select SYS_HAS_CPU_R5000
274 select SYS_SUPPORTS_32BIT_KERNEL
275 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
276 select SYS_SUPPORTS_LITTLE_ENDIAN
277
278 config MACH_LOONGSON
279 bool "Loongson family of machines"
280 select SYS_SUPPORTS_ZBOOT
281 help
282 This enables the support of Loongson family of machines.
283
284 Loongson is a family of general-purpose MIPS-compatible CPUs.
285 developed at Institute of Computing Technology (ICT),
286 Chinese Academy of Sciences (CAS) in the People's Republic
287 of China. The chief architect is Professor Weiwu Hu.
288
289 config MACH_LOONGSON1
290 bool "Loongson 1 family of machines"
291 select SYS_SUPPORTS_ZBOOT
292 help
293 This enables support for the Loongson 1 based machines.
294
295 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
296 the ICT (Institute of Computing Technology) and the Chinese Academy
297 of Sciences.
298
299 config MIPS_MALTA
300 bool "MIPS Malta board"
301 select ARCH_MAY_HAVE_PC_FDC
302 select BOOT_ELF32
303 select BOOT_RAW
304 select CEVT_R4K
305 select CSRC_R4K
306 select CSRC_GIC
307 select DMA_MAYBE_COHERENT
308 select GENERIC_ISA_DMA
309 select HAVE_PCSPKR_PLATFORM
310 select IRQ_CPU
311 select IRQ_GIC
312 select HW_HAS_PCI
313 select I8253
314 select I8259
315 select MIPS_BONITO64
316 select MIPS_CPU_SCACHE
317 select PCI_GT64XXX_PCI0
318 select MIPS_MSC
319 select SWAP_IO_SPACE
320 select SYS_HAS_CPU_MIPS32_R1
321 select SYS_HAS_CPU_MIPS32_R2
322 select SYS_HAS_CPU_MIPS32_R3_5
323 select SYS_HAS_CPU_MIPS64_R1
324 select SYS_HAS_CPU_MIPS64_R2
325 select SYS_HAS_CPU_NEVADA
326 select SYS_HAS_CPU_RM7000
327 select SYS_SUPPORTS_32BIT_KERNEL
328 select SYS_SUPPORTS_64BIT_KERNEL
329 select SYS_SUPPORTS_BIG_ENDIAN
330 select SYS_SUPPORTS_LITTLE_ENDIAN
331 select SYS_SUPPORTS_MIPS_CMP
332 select SYS_SUPPORTS_MIPS_CPS
333 select SYS_SUPPORTS_MULTITHREADING
334 select SYS_SUPPORTS_SMARTMIPS
335 select SYS_SUPPORTS_ZBOOT
336 help
337 This enables support for the MIPS Technologies Malta evaluation
338 board.
339
340 config MIPS_SEAD3
341 bool "MIPS SEAD3 board"
342 select BOOT_ELF32
343 select BOOT_RAW
344 select CEVT_R4K
345 select CSRC_R4K
346 select CSRC_GIC
347 select CPU_MIPSR2_IRQ_VI
348 select CPU_MIPSR2_IRQ_EI
349 select DMA_NONCOHERENT
350 select IRQ_CPU
351 select IRQ_GIC
352 select LIBFDT
353 select MIPS_MSC
354 select SYS_HAS_CPU_MIPS32_R1
355 select SYS_HAS_CPU_MIPS32_R2
356 select SYS_HAS_CPU_MIPS64_R1
357 select SYS_HAS_EARLY_PRINTK
358 select SYS_SUPPORTS_32BIT_KERNEL
359 select SYS_SUPPORTS_64BIT_KERNEL
360 select SYS_SUPPORTS_BIG_ENDIAN
361 select SYS_SUPPORTS_LITTLE_ENDIAN
362 select SYS_SUPPORTS_SMARTMIPS
363 select SYS_SUPPORTS_MICROMIPS
364 select USB_EHCI_BIG_ENDIAN_DESC
365 select USB_EHCI_BIG_ENDIAN_MMIO
366 select USE_OF
367 help
368 This enables support for the MIPS Technologies SEAD3 evaluation
369 board.
370
371 config NEC_MARKEINS
372 bool "NEC EMMA2RH Mark-eins board"
373 select SOC_EMMA2RH
374 select HW_HAS_PCI
375 help
376 This enables support for the NEC Electronics Mark-eins boards.
377
378 config MACH_VR41XX
379 bool "NEC VR4100 series based machines"
380 select CEVT_R4K
381 select CSRC_R4K
382 select SYS_HAS_CPU_VR41XX
383 select ARCH_REQUIRE_GPIOLIB
384
385 config NXP_STB220
386 bool "NXP STB220 board"
387 select SOC_PNX833X
388 help
389 Support for NXP Semiconductors STB220 Development Board.
390
391 config NXP_STB225
392 bool "NXP 225 board"
393 select SOC_PNX833X
394 select SOC_PNX8335
395 help
396 Support for NXP Semiconductors STB225 Development Board.
397
398 config PMC_MSP
399 bool "PMC-Sierra MSP chipsets"
400 select CEVT_R4K
401 select CSRC_R4K
402 select DMA_NONCOHERENT
403 select SWAP_IO_SPACE
404 select NO_EXCEPT_FILL
405 select BOOT_RAW
406 select SYS_HAS_CPU_MIPS32_R1
407 select SYS_HAS_CPU_MIPS32_R2
408 select SYS_SUPPORTS_32BIT_KERNEL
409 select SYS_SUPPORTS_BIG_ENDIAN
410 select IRQ_CPU
411 select SERIAL_8250
412 select SERIAL_8250_CONSOLE
413 select USB_EHCI_BIG_ENDIAN_MMIO
414 select USB_EHCI_BIG_ENDIAN_DESC
415 help
416 This adds support for the PMC-Sierra family of Multi-Service
417 Processor System-On-A-Chips. These parts include a number
418 of integrated peripherals, interfaces and DSPs in addition to
419 a variety of MIPS cores.
420
421 config RALINK
422 bool "Ralink based machines"
423 select CEVT_R4K
424 select CSRC_R4K
425 select BOOT_RAW
426 select DMA_NONCOHERENT
427 select IRQ_CPU
428 select USE_OF
429 select SYS_HAS_CPU_MIPS32_R1
430 select SYS_HAS_CPU_MIPS32_R2
431 select SYS_SUPPORTS_32BIT_KERNEL
432 select SYS_SUPPORTS_LITTLE_ENDIAN
433 select SYS_HAS_EARLY_PRINTK
434 select HAVE_MACH_CLKDEV
435 select CLKDEV_LOOKUP
436 select ARCH_HAS_RESET_CONTROLLER
437 select RESET_CONTROLLER
438
439 config SGI_IP22
440 bool "SGI IP22 (Indy/Indigo2)"
441 select FW_ARC
442 select FW_ARC32
443 select BOOT_ELF32
444 select CEVT_R4K
445 select CSRC_R4K
446 select DEFAULT_SGI_PARTITION
447 select DMA_NONCOHERENT
448 select HW_HAS_EISA
449 select I8253
450 select I8259
451 select IP22_CPU_SCACHE
452 select IRQ_CPU
453 select GENERIC_ISA_DMA_SUPPORT_BROKEN
454 select SGI_HAS_I8042
455 select SGI_HAS_INDYDOG
456 select SGI_HAS_HAL2
457 select SGI_HAS_SEEQ
458 select SGI_HAS_WD93
459 select SGI_HAS_ZILOG
460 select SWAP_IO_SPACE
461 select SYS_HAS_CPU_R4X00
462 select SYS_HAS_CPU_R5000
463 #
464 # Disable EARLY_PRINTK for now since it leads to overwritten prom
465 # memory during early boot on some machines.
466 #
467 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
468 # for a more details discussion
469 #
470 # select SYS_HAS_EARLY_PRINTK
471 select SYS_SUPPORTS_32BIT_KERNEL
472 select SYS_SUPPORTS_64BIT_KERNEL
473 select SYS_SUPPORTS_BIG_ENDIAN
474 select MIPS_L1_CACHE_SHIFT_7
475 help
476 This are the SGI Indy, Challenge S and Indigo2, as well as certain
477 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
478 that runs on these, say Y here.
479
480 config SGI_IP27
481 bool "SGI IP27 (Origin200/2000)"
482 select FW_ARC
483 select FW_ARC64
484 select BOOT_ELF64
485 select DEFAULT_SGI_PARTITION
486 select DMA_COHERENT
487 select SYS_HAS_EARLY_PRINTK
488 select HW_HAS_PCI
489 select NR_CPUS_DEFAULT_64
490 select SYS_HAS_CPU_R10000
491 select SYS_SUPPORTS_64BIT_KERNEL
492 select SYS_SUPPORTS_BIG_ENDIAN
493 select SYS_SUPPORTS_NUMA
494 select SYS_SUPPORTS_SMP
495 select MIPS_L1_CACHE_SHIFT_7
496 help
497 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
498 workstations. To compile a Linux kernel that runs on these, say Y
499 here.
500
501 config SGI_IP28
502 bool "SGI IP28 (Indigo2 R10k)"
503 select FW_ARC
504 select FW_ARC64
505 select BOOT_ELF64
506 select CEVT_R4K
507 select CSRC_R4K
508 select DEFAULT_SGI_PARTITION
509 select DMA_NONCOHERENT
510 select GENERIC_ISA_DMA_SUPPORT_BROKEN
511 select IRQ_CPU
512 select HW_HAS_EISA
513 select I8253
514 select I8259
515 select SGI_HAS_I8042
516 select SGI_HAS_INDYDOG
517 select SGI_HAS_HAL2
518 select SGI_HAS_SEEQ
519 select SGI_HAS_WD93
520 select SGI_HAS_ZILOG
521 select SWAP_IO_SPACE
522 select SYS_HAS_CPU_R10000
523 #
524 # Disable EARLY_PRINTK for now since it leads to overwritten prom
525 # memory during early boot on some machines.
526 #
527 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
528 # for a more details discussion
529 #
530 # select SYS_HAS_EARLY_PRINTK
531 select SYS_SUPPORTS_64BIT_KERNEL
532 select SYS_SUPPORTS_BIG_ENDIAN
533 help
534 This is the SGI Indigo2 with R10000 processor. To compile a Linux
535 kernel that runs on these, say Y here.
536
537 config SGI_IP32
538 bool "SGI IP32 (O2)"
539 select FW_ARC
540 select FW_ARC32
541 select BOOT_ELF32
542 select CEVT_R4K
543 select CSRC_R4K
544 select DMA_NONCOHERENT
545 select HW_HAS_PCI
546 select IRQ_CPU
547 select R5000_CPU_SCACHE
548 select RM7000_CPU_SCACHE
549 select SYS_HAS_CPU_R5000
550 select SYS_HAS_CPU_R10000 if BROKEN
551 select SYS_HAS_CPU_RM7000
552 select SYS_HAS_CPU_NEVADA
553 select SYS_SUPPORTS_64BIT_KERNEL
554 select SYS_SUPPORTS_BIG_ENDIAN
555 help
556 If you want this kernel to run on SGI O2 workstation, say Y here.
557
558 config SIBYTE_CRHINE
559 bool "Sibyte BCM91120C-CRhine"
560 select BOOT_ELF32
561 select DMA_COHERENT
562 select SIBYTE_BCM1120
563 select SWAP_IO_SPACE
564 select SYS_HAS_CPU_SB1
565 select SYS_SUPPORTS_BIG_ENDIAN
566 select SYS_SUPPORTS_LITTLE_ENDIAN
567
568 config SIBYTE_CARMEL
569 bool "Sibyte BCM91120x-Carmel"
570 select BOOT_ELF32
571 select DMA_COHERENT
572 select SIBYTE_BCM1120
573 select SWAP_IO_SPACE
574 select SYS_HAS_CPU_SB1
575 select SYS_SUPPORTS_BIG_ENDIAN
576 select SYS_SUPPORTS_LITTLE_ENDIAN
577
578 config SIBYTE_CRHONE
579 bool "Sibyte BCM91125C-CRhone"
580 select BOOT_ELF32
581 select DMA_COHERENT
582 select SIBYTE_BCM1125
583 select SWAP_IO_SPACE
584 select SYS_HAS_CPU_SB1
585 select SYS_SUPPORTS_BIG_ENDIAN
586 select SYS_SUPPORTS_HIGHMEM
587 select SYS_SUPPORTS_LITTLE_ENDIAN
588
589 config SIBYTE_RHONE
590 bool "Sibyte BCM91125E-Rhone"
591 select BOOT_ELF32
592 select DMA_COHERENT
593 select SIBYTE_BCM1125H
594 select SWAP_IO_SPACE
595 select SYS_HAS_CPU_SB1
596 select SYS_SUPPORTS_BIG_ENDIAN
597 select SYS_SUPPORTS_LITTLE_ENDIAN
598
599 config SIBYTE_SWARM
600 bool "Sibyte BCM91250A-SWARM"
601 select BOOT_ELF32
602 select DMA_COHERENT
603 select HAVE_PATA_PLATFORM
604 select SIBYTE_SB1250
605 select SWAP_IO_SPACE
606 select SYS_HAS_CPU_SB1
607 select SYS_SUPPORTS_BIG_ENDIAN
608 select SYS_SUPPORTS_HIGHMEM
609 select SYS_SUPPORTS_LITTLE_ENDIAN
610 select ZONE_DMA32 if 64BIT
611
612 config SIBYTE_LITTLESUR
613 bool "Sibyte BCM91250C2-LittleSur"
614 select BOOT_ELF32
615 select DMA_COHERENT
616 select HAVE_PATA_PLATFORM
617 select SIBYTE_SB1250
618 select SWAP_IO_SPACE
619 select SYS_HAS_CPU_SB1
620 select SYS_SUPPORTS_BIG_ENDIAN
621 select SYS_SUPPORTS_HIGHMEM
622 select SYS_SUPPORTS_LITTLE_ENDIAN
623
624 config SIBYTE_SENTOSA
625 bool "Sibyte BCM91250E-Sentosa"
626 select BOOT_ELF32
627 select DMA_COHERENT
628 select SIBYTE_SB1250
629 select SWAP_IO_SPACE
630 select SYS_HAS_CPU_SB1
631 select SYS_SUPPORTS_BIG_ENDIAN
632 select SYS_SUPPORTS_LITTLE_ENDIAN
633
634 config SIBYTE_BIGSUR
635 bool "Sibyte BCM91480B-BigSur"
636 select BOOT_ELF32
637 select DMA_COHERENT
638 select NR_CPUS_DEFAULT_4
639 select SIBYTE_BCM1x80
640 select SWAP_IO_SPACE
641 select SYS_HAS_CPU_SB1
642 select SYS_SUPPORTS_BIG_ENDIAN
643 select SYS_SUPPORTS_HIGHMEM
644 select SYS_SUPPORTS_LITTLE_ENDIAN
645 select ZONE_DMA32 if 64BIT
646
647 config SNI_RM
648 bool "SNI RM200/300/400"
649 select FW_ARC if CPU_LITTLE_ENDIAN
650 select FW_ARC32 if CPU_LITTLE_ENDIAN
651 select FW_SNIPROM if CPU_BIG_ENDIAN
652 select ARCH_MAY_HAVE_PC_FDC
653 select BOOT_ELF32
654 select CEVT_R4K
655 select CSRC_R4K
656 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
657 select DMA_NONCOHERENT
658 select GENERIC_ISA_DMA
659 select HAVE_PCSPKR_PLATFORM
660 select HW_HAS_EISA
661 select HW_HAS_PCI
662 select IRQ_CPU
663 select I8253
664 select I8259
665 select ISA
666 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
667 select SYS_HAS_CPU_R4X00
668 select SYS_HAS_CPU_R5000
669 select SYS_HAS_CPU_R10000
670 select R5000_CPU_SCACHE
671 select SYS_HAS_EARLY_PRINTK
672 select SYS_SUPPORTS_32BIT_KERNEL
673 select SYS_SUPPORTS_64BIT_KERNEL
674 select SYS_SUPPORTS_BIG_ENDIAN
675 select SYS_SUPPORTS_HIGHMEM
676 select SYS_SUPPORTS_LITTLE_ENDIAN
677 select USE_GENERIC_EARLY_PRINTK_8250
678 help
679 The SNI RM200/300/400 are MIPS-based machines manufactured by
680 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
681 Technology and now in turn merged with Fujitsu. Say Y here to
682 support this machine type.
683
684 config MACH_TX39XX
685 bool "Toshiba TX39 series based machines"
686
687 config MACH_TX49XX
688 bool "Toshiba TX49 series based machines"
689
690 config MIKROTIK_RB532
691 bool "Mikrotik RB532 boards"
692 select CEVT_R4K
693 select CSRC_R4K
694 select DMA_NONCOHERENT
695 select HW_HAS_PCI
696 select IRQ_CPU
697 select SYS_HAS_CPU_MIPS32_R1
698 select SYS_SUPPORTS_32BIT_KERNEL
699 select SYS_SUPPORTS_LITTLE_ENDIAN
700 select SWAP_IO_SPACE
701 select BOOT_RAW
702 select ARCH_REQUIRE_GPIOLIB
703 select MIPS_L1_CACHE_SHIFT_4
704 help
705 Support the Mikrotik(tm) RouterBoard 532 series,
706 based on the IDT RC32434 SoC.
707
708 config CAVIUM_OCTEON_SOC
709 bool "Cavium Networks Octeon SoC based boards"
710 select CEVT_R4K
711 select 64BIT_PHYS_ADDR
712 select DMA_COHERENT
713 select SYS_SUPPORTS_64BIT_KERNEL
714 select SYS_SUPPORTS_BIG_ENDIAN
715 select EDAC_SUPPORT
716 select SYS_SUPPORTS_HOTPLUG_CPU
717 select SYS_HAS_EARLY_PRINTK
718 select SYS_HAS_CPU_CAVIUM_OCTEON
719 select SWAP_IO_SPACE
720 select HW_HAS_PCI
721 select ZONE_DMA32
722 select HOLES_IN_ZONE
723 select ARCH_REQUIRE_GPIOLIB
724 help
725 This option supports all of the Octeon reference boards from Cavium
726 Networks. It builds a kernel that dynamically determines the Octeon
727 CPU type and supports all known board reference implementations.
728 Some of the supported boards are:
729 EBT3000
730 EBH3000
731 EBH3100
732 Thunder
733 Kodama
734 Hikari
735 Say Y here for most Octeon reference boards.
736
737 config NLM_XLR_BOARD
738 bool "Netlogic XLR/XLS based systems"
739 select BOOT_ELF32
740 select NLM_COMMON
741 select SYS_HAS_CPU_XLR
742 select SYS_SUPPORTS_SMP
743 select HW_HAS_PCI
744 select SWAP_IO_SPACE
745 select SYS_SUPPORTS_32BIT_KERNEL
746 select SYS_SUPPORTS_64BIT_KERNEL
747 select 64BIT_PHYS_ADDR
748 select SYS_SUPPORTS_BIG_ENDIAN
749 select SYS_SUPPORTS_HIGHMEM
750 select DMA_COHERENT
751 select NR_CPUS_DEFAULT_32
752 select CEVT_R4K
753 select CSRC_R4K
754 select IRQ_CPU
755 select ZONE_DMA32 if 64BIT
756 select SYNC_R4K
757 select SYS_HAS_EARLY_PRINTK
758 select SYS_SUPPORTS_ZBOOT
759 select SYS_SUPPORTS_ZBOOT_UART16550
760 help
761 Support for systems based on Netlogic XLR and XLS processors.
762 Say Y here if you have a XLR or XLS based board.
763
764 config NLM_XLP_BOARD
765 bool "Netlogic XLP based systems"
766 select BOOT_ELF32
767 select NLM_COMMON
768 select SYS_HAS_CPU_XLP
769 select SYS_SUPPORTS_SMP
770 select HW_HAS_PCI
771 select SYS_SUPPORTS_32BIT_KERNEL
772 select SYS_SUPPORTS_64BIT_KERNEL
773 select 64BIT_PHYS_ADDR
774 select SYS_SUPPORTS_BIG_ENDIAN
775 select SYS_SUPPORTS_LITTLE_ENDIAN
776 select SYS_SUPPORTS_HIGHMEM
777 select DMA_COHERENT
778 select NR_CPUS_DEFAULT_32
779 select CEVT_R4K
780 select CSRC_R4K
781 select IRQ_CPU
782 select ZONE_DMA32 if 64BIT
783 select SYNC_R4K
784 select SYS_HAS_EARLY_PRINTK
785 select USE_OF
786 select SYS_SUPPORTS_ZBOOT
787 select SYS_SUPPORTS_ZBOOT_UART16550
788 help
789 This board is based on Netlogic XLP Processor.
790 Say Y here if you have a XLP based board.
791
792 endchoice
793
794 source "arch/mips/alchemy/Kconfig"
795 source "arch/mips/ath79/Kconfig"
796 source "arch/mips/bcm47xx/Kconfig"
797 source "arch/mips/bcm63xx/Kconfig"
798 source "arch/mips/jazz/Kconfig"
799 source "arch/mips/jz4740/Kconfig"
800 source "arch/mips/lantiq/Kconfig"
801 source "arch/mips/lasat/Kconfig"
802 source "arch/mips/pmcs-msp71xx/Kconfig"
803 source "arch/mips/ralink/Kconfig"
804 source "arch/mips/sgi-ip27/Kconfig"
805 source "arch/mips/sibyte/Kconfig"
806 source "arch/mips/txx9/Kconfig"
807 source "arch/mips/vr41xx/Kconfig"
808 source "arch/mips/cavium-octeon/Kconfig"
809 source "arch/mips/loongson/Kconfig"
810 source "arch/mips/loongson1/Kconfig"
811 source "arch/mips/netlogic/Kconfig"
812
813 endmenu
814
815 config RWSEM_GENERIC_SPINLOCK
816 bool
817 default y
818
819 config RWSEM_XCHGADD_ALGORITHM
820 bool
821
822 config ARCH_HAS_ILOG2_U32
823 bool
824 default n
825
826 config ARCH_HAS_ILOG2_U64
827 bool
828 default n
829
830 config GENERIC_HWEIGHT
831 bool
832 default y
833
834 config GENERIC_CALIBRATE_DELAY
835 bool
836 default y
837
838 config SCHED_OMIT_FRAME_POINTER
839 bool
840 default y
841
842 #
843 # Select some configuration options automatically based on user selections.
844 #
845 config FW_ARC
846 bool
847
848 config ARCH_MAY_HAVE_PC_FDC
849 bool
850
851 config BOOT_RAW
852 bool
853
854 config CEVT_BCM1480
855 bool
856
857 config CEVT_DS1287
858 bool
859
860 config CEVT_GT641XX
861 bool
862
863 config CEVT_R4K
864 bool
865
866 config CEVT_GIC
867 select MIPS_CM
868 bool
869
870 config CEVT_SB1250
871 bool
872
873 config CEVT_TXX9
874 bool
875
876 config CSRC_BCM1480
877 bool
878
879 config CSRC_IOASIC
880 bool
881
882 config CSRC_R4K
883 bool
884
885 config CSRC_GIC
886 select MIPS_CM
887 bool
888
889 config CSRC_SB1250
890 bool
891
892 config GPIO_TXX9
893 select ARCH_REQUIRE_GPIOLIB
894 bool
895
896 config FW_CFE
897 bool
898
899 config ARCH_DMA_ADDR_T_64BIT
900 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
901
902 config DMA_MAYBE_COHERENT
903 select DMA_NONCOHERENT
904 bool
905
906 config DMA_COHERENT
907 bool
908
909 config DMA_NONCOHERENT
910 bool
911 select NEED_DMA_MAP_STATE
912
913 config NEED_DMA_MAP_STATE
914 bool
915
916 config SYS_HAS_EARLY_PRINTK
917 bool
918
919 config HOTPLUG_CPU
920 bool "Support for hot-pluggable CPUs"
921 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
922 help
923 Say Y here to allow turning CPUs off and on. CPUs can be
924 controlled through /sys/devices/system/cpu.
925 (Note: power management support will enable this option
926 automatically on SMP systems. )
927 Say N if you want to disable CPU hotplug.
928
929 config SYS_SUPPORTS_HOTPLUG_CPU
930 bool
931
932 config I8259
933 bool
934
935 config MIPS_BONITO64
936 bool
937
938 config MIPS_MSC
939 bool
940
941 config MIPS_NILE4
942 bool
943
944 config SYNC_R4K
945 bool
946
947 config MIPS_MACHINE
948 def_bool n
949
950 config NO_IOPORT
951 def_bool n
952
953 config GENERIC_ISA_DMA
954 bool
955 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
956 select ISA_DMA_API
957
958 config GENERIC_ISA_DMA_SUPPORT_BROKEN
959 bool
960 select GENERIC_ISA_DMA
961
962 config ISA_DMA_API
963 bool
964
965 config HOLES_IN_ZONE
966 bool
967
968 #
969 # Endianness selection. Sufficiently obscure so many users don't know what to
970 # answer,so we try hard to limit the available choices. Also the use of a
971 # choice statement should be more obvious to the user.
972 #
973 choice
974 prompt "Endianness selection"
975 help
976 Some MIPS machines can be configured for either little or big endian
977 byte order. These modes require different kernels and a different
978 Linux distribution. In general there is one preferred byteorder for a
979 particular system but some systems are just as commonly used in the
980 one or the other endianness.
981
982 config CPU_BIG_ENDIAN
983 bool "Big endian"
984 depends on SYS_SUPPORTS_BIG_ENDIAN
985
986 config CPU_LITTLE_ENDIAN
987 bool "Little endian"
988 depends on SYS_SUPPORTS_LITTLE_ENDIAN
989
990 endchoice
991
992 config EXPORT_UASM
993 bool
994
995 config SYS_SUPPORTS_APM_EMULATION
996 bool
997
998 config SYS_SUPPORTS_BIG_ENDIAN
999 bool
1000
1001 config SYS_SUPPORTS_LITTLE_ENDIAN
1002 bool
1003
1004 config SYS_SUPPORTS_HUGETLBFS
1005 bool
1006 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1007 default y
1008
1009 config MIPS_HUGE_TLB_SUPPORT
1010 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1011
1012 config IRQ_CPU
1013 bool
1014
1015 config IRQ_CPU_RM7K
1016 bool
1017
1018 config IRQ_MSP_SLP
1019 bool
1020
1021 config IRQ_MSP_CIC
1022 bool
1023
1024 config IRQ_TXX9
1025 bool
1026
1027 config IRQ_GT641XX
1028 bool
1029
1030 config IRQ_GIC
1031 select MIPS_CM
1032 bool
1033
1034 config PCI_GT64XXX_PCI0
1035 bool
1036
1037 config NO_EXCEPT_FILL
1038 bool
1039
1040 config SOC_EMMA2RH
1041 bool
1042 select CEVT_R4K
1043 select CSRC_R4K
1044 select DMA_NONCOHERENT
1045 select IRQ_CPU
1046 select SWAP_IO_SPACE
1047 select SYS_HAS_CPU_R5500
1048 select SYS_SUPPORTS_32BIT_KERNEL
1049 select SYS_SUPPORTS_64BIT_KERNEL
1050 select SYS_SUPPORTS_BIG_ENDIAN
1051
1052 config SOC_PNX833X
1053 bool
1054 select CEVT_R4K
1055 select CSRC_R4K
1056 select IRQ_CPU
1057 select DMA_NONCOHERENT
1058 select SYS_HAS_CPU_MIPS32_R2
1059 select SYS_SUPPORTS_32BIT_KERNEL
1060 select SYS_SUPPORTS_LITTLE_ENDIAN
1061 select SYS_SUPPORTS_BIG_ENDIAN
1062 select CPU_MIPSR2_IRQ_VI
1063
1064 config SOC_PNX8335
1065 bool
1066 select SOC_PNX833X
1067
1068 config SWAP_IO_SPACE
1069 bool
1070
1071 config SGI_HAS_INDYDOG
1072 bool
1073
1074 config SGI_HAS_HAL2
1075 bool
1076
1077 config SGI_HAS_SEEQ
1078 bool
1079
1080 config SGI_HAS_WD93
1081 bool
1082
1083 config SGI_HAS_ZILOG
1084 bool
1085
1086 config SGI_HAS_I8042
1087 bool
1088
1089 config DEFAULT_SGI_PARTITION
1090 bool
1091
1092 config FW_ARC32
1093 bool
1094
1095 config FW_SNIPROM
1096 bool
1097
1098 config BOOT_ELF32
1099 bool
1100
1101 config MIPS_L1_CACHE_SHIFT_4
1102 bool
1103
1104 config MIPS_L1_CACHE_SHIFT_5
1105 bool
1106
1107 config MIPS_L1_CACHE_SHIFT_6
1108 bool
1109
1110 config MIPS_L1_CACHE_SHIFT_7
1111 bool
1112
1113 config MIPS_L1_CACHE_SHIFT
1114 int
1115 default "4" if MIPS_L1_CACHE_SHIFT_4
1116 default "5" if MIPS_L1_CACHE_SHIFT_5
1117 default "6" if MIPS_L1_CACHE_SHIFT_6
1118 default "7" if MIPS_L1_CACHE_SHIFT_7
1119 default "5"
1120
1121 config HAVE_STD_PC_SERIAL_PORT
1122 bool
1123
1124 config ARC_CONSOLE
1125 bool "ARC console support"
1126 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1127
1128 config ARC_MEMORY
1129 bool
1130 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1131 default y
1132
1133 config ARC_PROMLIB
1134 bool
1135 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1136 default y
1137
1138 config FW_ARC64
1139 bool
1140
1141 config BOOT_ELF64
1142 bool
1143
1144 menu "CPU selection"
1145
1146 choice
1147 prompt "CPU type"
1148 default CPU_R4X00
1149
1150 config CPU_LOONGSON3
1151 bool "Loongson 3 CPU"
1152 depends on SYS_HAS_CPU_LOONGSON3
1153 select CPU_SUPPORTS_64BIT_KERNEL
1154 select CPU_SUPPORTS_HIGHMEM
1155 select CPU_SUPPORTS_HUGEPAGES
1156 select WEAK_ORDERING
1157 select WEAK_REORDERING_BEYOND_LLSC
1158 help
1159 The Loongson 3 processor implements the MIPS64R2 instruction
1160 set with many extensions.
1161
1162 config CPU_LOONGSON2E
1163 bool "Loongson 2E"
1164 depends on SYS_HAS_CPU_LOONGSON2E
1165 select CPU_LOONGSON2
1166 help
1167 The Loongson 2E processor implements the MIPS III instruction set
1168 with many extensions.
1169
1170 It has an internal FPGA northbridge, which is compatible to
1171 bonito64.
1172
1173 config CPU_LOONGSON2F
1174 bool "Loongson 2F"
1175 depends on SYS_HAS_CPU_LOONGSON2F
1176 select CPU_LOONGSON2
1177 select ARCH_REQUIRE_GPIOLIB
1178 help
1179 The Loongson 2F processor implements the MIPS III instruction set
1180 with many extensions.
1181
1182 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1183 have a similar programming interface with FPGA northbridge used in
1184 Loongson2E.
1185
1186 config CPU_LOONGSON1B
1187 bool "Loongson 1B"
1188 depends on SYS_HAS_CPU_LOONGSON1B
1189 select CPU_LOONGSON1
1190 help
1191 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1192 release 2 instruction set.
1193
1194 config CPU_MIPS32_R1
1195 bool "MIPS32 Release 1"
1196 depends on SYS_HAS_CPU_MIPS32_R1
1197 select CPU_HAS_PREFETCH
1198 select CPU_SUPPORTS_32BIT_KERNEL
1199 select CPU_SUPPORTS_HIGHMEM
1200 help
1201 Choose this option to build a kernel for release 1 or later of the
1202 MIPS32 architecture. Most modern embedded systems with a 32-bit
1203 MIPS processor are based on a MIPS32 processor. If you know the
1204 specific type of processor in your system, choose those that one
1205 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1206 Release 2 of the MIPS32 architecture is available since several
1207 years so chances are you even have a MIPS32 Release 2 processor
1208 in which case you should choose CPU_MIPS32_R2 instead for better
1209 performance.
1210
1211 config CPU_MIPS32_R2
1212 bool "MIPS32 Release 2"
1213 depends on SYS_HAS_CPU_MIPS32_R2
1214 select CPU_HAS_PREFETCH
1215 select CPU_SUPPORTS_32BIT_KERNEL
1216 select CPU_SUPPORTS_HIGHMEM
1217 select CPU_SUPPORTS_MSA
1218 select HAVE_KVM
1219 help
1220 Choose this option to build a kernel for release 2 or later of the
1221 MIPS32 architecture. Most modern embedded systems with a 32-bit
1222 MIPS processor are based on a MIPS32 processor. If you know the
1223 specific type of processor in your system, choose those that one
1224 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1225
1226 config CPU_MIPS64_R1
1227 bool "MIPS64 Release 1"
1228 depends on SYS_HAS_CPU_MIPS64_R1
1229 select CPU_HAS_PREFETCH
1230 select CPU_SUPPORTS_32BIT_KERNEL
1231 select CPU_SUPPORTS_64BIT_KERNEL
1232 select CPU_SUPPORTS_HIGHMEM
1233 select CPU_SUPPORTS_HUGEPAGES
1234 help
1235 Choose this option to build a kernel for release 1 or later of the
1236 MIPS64 architecture. Many modern embedded systems with a 64-bit
1237 MIPS processor are based on a MIPS64 processor. If you know the
1238 specific type of processor in your system, choose those that one
1239 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1240 Release 2 of the MIPS64 architecture is available since several
1241 years so chances are you even have a MIPS64 Release 2 processor
1242 in which case you should choose CPU_MIPS64_R2 instead for better
1243 performance.
1244
1245 config CPU_MIPS64_R2
1246 bool "MIPS64 Release 2"
1247 depends on SYS_HAS_CPU_MIPS64_R2
1248 select CPU_HAS_PREFETCH
1249 select CPU_SUPPORTS_32BIT_KERNEL
1250 select CPU_SUPPORTS_64BIT_KERNEL
1251 select CPU_SUPPORTS_HIGHMEM
1252 select CPU_SUPPORTS_HUGEPAGES
1253 select CPU_SUPPORTS_MSA
1254 help
1255 Choose this option to build a kernel for release 2 or later of the
1256 MIPS64 architecture. Many modern embedded systems with a 64-bit
1257 MIPS processor are based on a MIPS64 processor. If you know the
1258 specific type of processor in your system, choose those that one
1259 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1260
1261 config CPU_R3000
1262 bool "R3000"
1263 depends on SYS_HAS_CPU_R3000
1264 select CPU_HAS_WB
1265 select CPU_SUPPORTS_32BIT_KERNEL
1266 select CPU_SUPPORTS_HIGHMEM
1267 help
1268 Please make sure to pick the right CPU type. Linux/MIPS is not
1269 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1270 *not* work on R4000 machines and vice versa. However, since most
1271 of the supported machines have an R4000 (or similar) CPU, R4x00
1272 might be a safe bet. If the resulting kernel does not work,
1273 try to recompile with R3000.
1274
1275 config CPU_TX39XX
1276 bool "R39XX"
1277 depends on SYS_HAS_CPU_TX39XX
1278 select CPU_SUPPORTS_32BIT_KERNEL
1279
1280 config CPU_VR41XX
1281 bool "R41xx"
1282 depends on SYS_HAS_CPU_VR41XX
1283 select CPU_SUPPORTS_32BIT_KERNEL
1284 select CPU_SUPPORTS_64BIT_KERNEL
1285 help
1286 The options selects support for the NEC VR4100 series of processors.
1287 Only choose this option if you have one of these processors as a
1288 kernel built with this option will not run on any other type of
1289 processor or vice versa.
1290
1291 config CPU_R4300
1292 bool "R4300"
1293 depends on SYS_HAS_CPU_R4300
1294 select CPU_SUPPORTS_32BIT_KERNEL
1295 select CPU_SUPPORTS_64BIT_KERNEL
1296 help
1297 MIPS Technologies R4300-series processors.
1298
1299 config CPU_R4X00
1300 bool "R4x00"
1301 depends on SYS_HAS_CPU_R4X00
1302 select CPU_SUPPORTS_32BIT_KERNEL
1303 select CPU_SUPPORTS_64BIT_KERNEL
1304 select CPU_SUPPORTS_HUGEPAGES
1305 help
1306 MIPS Technologies R4000-series processors other than 4300, including
1307 the R4000, R4400, R4600, and 4700.
1308
1309 config CPU_TX49XX
1310 bool "R49XX"
1311 depends on SYS_HAS_CPU_TX49XX
1312 select CPU_HAS_PREFETCH
1313 select CPU_SUPPORTS_32BIT_KERNEL
1314 select CPU_SUPPORTS_64BIT_KERNEL
1315 select CPU_SUPPORTS_HUGEPAGES
1316
1317 config CPU_R5000
1318 bool "R5000"
1319 depends on SYS_HAS_CPU_R5000
1320 select CPU_SUPPORTS_32BIT_KERNEL
1321 select CPU_SUPPORTS_64BIT_KERNEL
1322 select CPU_SUPPORTS_HUGEPAGES
1323 help
1324 MIPS Technologies R5000-series processors other than the Nevada.
1325
1326 config CPU_R5432
1327 bool "R5432"
1328 depends on SYS_HAS_CPU_R5432
1329 select CPU_SUPPORTS_32BIT_KERNEL
1330 select CPU_SUPPORTS_64BIT_KERNEL
1331 select CPU_SUPPORTS_HUGEPAGES
1332
1333 config CPU_R5500
1334 bool "R5500"
1335 depends on SYS_HAS_CPU_R5500
1336 select CPU_SUPPORTS_32BIT_KERNEL
1337 select CPU_SUPPORTS_64BIT_KERNEL
1338 select CPU_SUPPORTS_HUGEPAGES
1339 help
1340 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1341 instruction set.
1342
1343 config CPU_R6000
1344 bool "R6000"
1345 depends on SYS_HAS_CPU_R6000
1346 select CPU_SUPPORTS_32BIT_KERNEL
1347 help
1348 MIPS Technologies R6000 and R6000A series processors. Note these
1349 processors are extremely rare and the support for them is incomplete.
1350
1351 config CPU_NEVADA
1352 bool "RM52xx"
1353 depends on SYS_HAS_CPU_NEVADA
1354 select CPU_SUPPORTS_32BIT_KERNEL
1355 select CPU_SUPPORTS_64BIT_KERNEL
1356 select CPU_SUPPORTS_HUGEPAGES
1357 help
1358 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1359
1360 config CPU_R8000
1361 bool "R8000"
1362 depends on SYS_HAS_CPU_R8000
1363 select CPU_HAS_PREFETCH
1364 select CPU_SUPPORTS_64BIT_KERNEL
1365 help
1366 MIPS Technologies R8000 processors. Note these processors are
1367 uncommon and the support for them is incomplete.
1368
1369 config CPU_R10000
1370 bool "R10000"
1371 depends on SYS_HAS_CPU_R10000
1372 select CPU_HAS_PREFETCH
1373 select CPU_SUPPORTS_32BIT_KERNEL
1374 select CPU_SUPPORTS_64BIT_KERNEL
1375 select CPU_SUPPORTS_HIGHMEM
1376 select CPU_SUPPORTS_HUGEPAGES
1377 help
1378 MIPS Technologies R10000-series processors.
1379
1380 config CPU_RM7000
1381 bool "RM7000"
1382 depends on SYS_HAS_CPU_RM7000
1383 select CPU_HAS_PREFETCH
1384 select CPU_SUPPORTS_32BIT_KERNEL
1385 select CPU_SUPPORTS_64BIT_KERNEL
1386 select CPU_SUPPORTS_HIGHMEM
1387 select CPU_SUPPORTS_HUGEPAGES
1388
1389 config CPU_SB1
1390 bool "SB1"
1391 depends on SYS_HAS_CPU_SB1
1392 select CPU_SUPPORTS_32BIT_KERNEL
1393 select CPU_SUPPORTS_64BIT_KERNEL
1394 select CPU_SUPPORTS_HIGHMEM
1395 select CPU_SUPPORTS_HUGEPAGES
1396 select WEAK_ORDERING
1397
1398 config CPU_CAVIUM_OCTEON
1399 bool "Cavium Octeon processor"
1400 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1401 select ARCH_SPARSEMEM_ENABLE
1402 select CPU_HAS_PREFETCH
1403 select CPU_SUPPORTS_64BIT_KERNEL
1404 select SYS_SUPPORTS_SMP
1405 select NR_CPUS_DEFAULT_16
1406 select WEAK_ORDERING
1407 select CPU_SUPPORTS_HIGHMEM
1408 select CPU_SUPPORTS_HUGEPAGES
1409 select LIBFDT
1410 select USE_OF
1411 select USB_EHCI_BIG_ENDIAN_MMIO
1412 select MIPS_L1_CACHE_SHIFT_7
1413 help
1414 The Cavium Octeon processor is a highly integrated chip containing
1415 many ethernet hardware widgets for networking tasks. The processor
1416 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1417 Full details can be found at http://www.caviumnetworks.com.
1418
1419 config CPU_BMIPS
1420 bool "Broadcom BMIPS"
1421 depends on SYS_HAS_CPU_BMIPS
1422 select CPU_MIPS32
1423 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1424 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1425 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1426 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1427 select CPU_SUPPORTS_32BIT_KERNEL
1428 select DMA_NONCOHERENT
1429 select IRQ_CPU
1430 select SWAP_IO_SPACE
1431 select WEAK_ORDERING
1432 select CPU_SUPPORTS_HIGHMEM
1433 select CPU_HAS_PREFETCH
1434 help
1435 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1436
1437 config CPU_XLR
1438 bool "Netlogic XLR SoC"
1439 depends on SYS_HAS_CPU_XLR
1440 select CPU_SUPPORTS_32BIT_KERNEL
1441 select CPU_SUPPORTS_64BIT_KERNEL
1442 select CPU_SUPPORTS_HIGHMEM
1443 select CPU_SUPPORTS_HUGEPAGES
1444 select WEAK_ORDERING
1445 select WEAK_REORDERING_BEYOND_LLSC
1446 help
1447 Netlogic Microsystems XLR/XLS processors.
1448
1449 config CPU_XLP
1450 bool "Netlogic XLP SoC"
1451 depends on SYS_HAS_CPU_XLP
1452 select CPU_SUPPORTS_32BIT_KERNEL
1453 select CPU_SUPPORTS_64BIT_KERNEL
1454 select CPU_SUPPORTS_HIGHMEM
1455 select WEAK_ORDERING
1456 select WEAK_REORDERING_BEYOND_LLSC
1457 select CPU_HAS_PREFETCH
1458 select CPU_MIPSR2
1459 help
1460 Netlogic Microsystems XLP processors.
1461 endchoice
1462
1463 config CPU_MIPS32_3_5_FEATURES
1464 bool "MIPS32 Release 3.5 Features"
1465 depends on SYS_HAS_CPU_MIPS32_R3_5
1466 depends on CPU_MIPS32_R2
1467 help
1468 Choose this option to build a kernel for release 2 or later of the
1469 MIPS32 architecture including features from the 3.5 release such as
1470 support for Enhanced Virtual Addressing (EVA).
1471
1472 config CPU_MIPS32_3_5_EVA
1473 bool "Enhanced Virtual Addressing (EVA)"
1474 depends on CPU_MIPS32_3_5_FEATURES
1475 select EVA
1476 default y
1477 help
1478 Choose this option if you want to enable the Enhanced Virtual
1479 Addressing (EVA) on your MIPS32 core (such as proAptiv).
1480 One of its primary benefits is an increase in the maximum size
1481 of lowmem (up to 3GB). If unsure, say 'N' here.
1482
1483 if CPU_LOONGSON2F
1484 config CPU_NOP_WORKAROUNDS
1485 bool
1486
1487 config CPU_JUMP_WORKAROUNDS
1488 bool
1489
1490 config CPU_LOONGSON2F_WORKAROUNDS
1491 bool "Loongson 2F Workarounds"
1492 default y
1493 select CPU_NOP_WORKAROUNDS
1494 select CPU_JUMP_WORKAROUNDS
1495 help
1496 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1497 require workarounds. Without workarounds the system may hang
1498 unexpectedly. For more information please refer to the gas
1499 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1500
1501 Loongson 2F03 and later have fixed these issues and no workarounds
1502 are needed. The workarounds have no significant side effect on them
1503 but may decrease the performance of the system so this option should
1504 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1505 systems.
1506
1507 If unsure, please say Y.
1508 endif # CPU_LOONGSON2F
1509
1510 config SYS_SUPPORTS_ZBOOT
1511 bool
1512 select HAVE_KERNEL_GZIP
1513 select HAVE_KERNEL_BZIP2
1514 select HAVE_KERNEL_LZ4
1515 select HAVE_KERNEL_LZMA
1516 select HAVE_KERNEL_LZO
1517 select HAVE_KERNEL_XZ
1518
1519 config SYS_SUPPORTS_ZBOOT_UART16550
1520 bool
1521 select SYS_SUPPORTS_ZBOOT
1522
1523 config CPU_LOONGSON2
1524 bool
1525 select CPU_SUPPORTS_32BIT_KERNEL
1526 select CPU_SUPPORTS_64BIT_KERNEL
1527 select CPU_SUPPORTS_HIGHMEM
1528 select CPU_SUPPORTS_HUGEPAGES
1529
1530 config CPU_LOONGSON1
1531 bool
1532 select CPU_MIPS32
1533 select CPU_MIPSR2
1534 select CPU_HAS_PREFETCH
1535 select CPU_SUPPORTS_32BIT_KERNEL
1536 select CPU_SUPPORTS_HIGHMEM
1537
1538 config CPU_BMIPS32_3300
1539 select SMP_UP if SMP
1540 bool
1541
1542 config CPU_BMIPS4350
1543 bool
1544 select SYS_SUPPORTS_SMP
1545 select SYS_SUPPORTS_HOTPLUG_CPU
1546
1547 config CPU_BMIPS4380
1548 bool
1549 select SYS_SUPPORTS_SMP
1550 select SYS_SUPPORTS_HOTPLUG_CPU
1551
1552 config CPU_BMIPS5000
1553 bool
1554 select MIPS_CPU_SCACHE
1555 select SYS_SUPPORTS_SMP
1556 select SYS_SUPPORTS_HOTPLUG_CPU
1557
1558 config SYS_HAS_CPU_LOONGSON3
1559 bool
1560 select CPU_SUPPORTS_CPUFREQ
1561
1562 config SYS_HAS_CPU_LOONGSON2E
1563 bool
1564
1565 config SYS_HAS_CPU_LOONGSON2F
1566 bool
1567 select CPU_SUPPORTS_CPUFREQ
1568 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1569 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1570
1571 config SYS_HAS_CPU_LOONGSON1B
1572 bool
1573
1574 config SYS_HAS_CPU_MIPS32_R1
1575 bool
1576
1577 config SYS_HAS_CPU_MIPS32_R2
1578 bool
1579
1580 config SYS_HAS_CPU_MIPS32_R3_5
1581 bool
1582
1583 config SYS_HAS_CPU_MIPS64_R1
1584 bool
1585
1586 config SYS_HAS_CPU_MIPS64_R2
1587 bool
1588
1589 config SYS_HAS_CPU_R3000
1590 bool
1591
1592 config SYS_HAS_CPU_TX39XX
1593 bool
1594
1595 config SYS_HAS_CPU_VR41XX
1596 bool
1597
1598 config SYS_HAS_CPU_R4300
1599 bool
1600
1601 config SYS_HAS_CPU_R4X00
1602 bool
1603
1604 config SYS_HAS_CPU_TX49XX
1605 bool
1606
1607 config SYS_HAS_CPU_R5000
1608 bool
1609
1610 config SYS_HAS_CPU_R5432
1611 bool
1612
1613 config SYS_HAS_CPU_R5500
1614 bool
1615
1616 config SYS_HAS_CPU_R6000
1617 bool
1618
1619 config SYS_HAS_CPU_NEVADA
1620 bool
1621
1622 config SYS_HAS_CPU_R8000
1623 bool
1624
1625 config SYS_HAS_CPU_R10000
1626 bool
1627
1628 config SYS_HAS_CPU_RM7000
1629 bool
1630
1631 config SYS_HAS_CPU_SB1
1632 bool
1633
1634 config SYS_HAS_CPU_CAVIUM_OCTEON
1635 bool
1636
1637 config SYS_HAS_CPU_BMIPS
1638 bool
1639
1640 config SYS_HAS_CPU_BMIPS32_3300
1641 bool
1642 select SYS_HAS_CPU_BMIPS
1643
1644 config SYS_HAS_CPU_BMIPS4350
1645 bool
1646 select SYS_HAS_CPU_BMIPS
1647
1648 config SYS_HAS_CPU_BMIPS4380
1649 bool
1650 select SYS_HAS_CPU_BMIPS
1651
1652 config SYS_HAS_CPU_BMIPS5000
1653 bool
1654 select SYS_HAS_CPU_BMIPS
1655
1656 config SYS_HAS_CPU_XLR
1657 bool
1658
1659 config SYS_HAS_CPU_XLP
1660 bool
1661
1662 #
1663 # CPU may reorder R->R, R->W, W->R, W->W
1664 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1665 #
1666 config WEAK_ORDERING
1667 bool
1668
1669 #
1670 # CPU may reorder reads and writes beyond LL/SC
1671 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1672 #
1673 config WEAK_REORDERING_BEYOND_LLSC
1674 bool
1675 endmenu
1676
1677 #
1678 # These two indicate any level of the MIPS32 and MIPS64 architecture
1679 #
1680 config CPU_MIPS32
1681 bool
1682 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1683
1684 config CPU_MIPS64
1685 bool
1686 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1687
1688 #
1689 # These two indicate the revision of the architecture, either Release 1 or Release 2
1690 #
1691 config CPU_MIPSR1
1692 bool
1693 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1694
1695 config CPU_MIPSR2
1696 bool
1697 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1698
1699 config EVA
1700 bool
1701
1702 config SYS_SUPPORTS_32BIT_KERNEL
1703 bool
1704 config SYS_SUPPORTS_64BIT_KERNEL
1705 bool
1706 config CPU_SUPPORTS_32BIT_KERNEL
1707 bool
1708 config CPU_SUPPORTS_64BIT_KERNEL
1709 bool
1710 config CPU_SUPPORTS_CPUFREQ
1711 bool
1712 config CPU_SUPPORTS_ADDRWINCFG
1713 bool
1714 config CPU_SUPPORTS_HUGEPAGES
1715 bool
1716 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1717 bool
1718 config MIPS_PGD_C0_CONTEXT
1719 bool
1720 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1721
1722 #
1723 # Set to y for ptrace access to watch registers.
1724 #
1725 config HARDWARE_WATCHPOINTS
1726 bool
1727 default y if CPU_MIPSR1 || CPU_MIPSR2
1728
1729 menu "Kernel type"
1730
1731 choice
1732 prompt "Kernel code model"
1733 help
1734 You should only select this option if you have a workload that
1735 actually benefits from 64-bit processing or if your machine has
1736 large memory. You will only be presented a single option in this
1737 menu if your system does not support both 32-bit and 64-bit kernels.
1738
1739 config 32BIT
1740 bool "32-bit kernel"
1741 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1742 select TRAD_SIGNALS
1743 help
1744 Select this option if you want to build a 32-bit kernel.
1745 config 64BIT
1746 bool "64-bit kernel"
1747 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1748 help
1749 Select this option if you want to build a 64-bit kernel.
1750
1751 endchoice
1752
1753 config KVM_GUEST
1754 bool "KVM Guest Kernel"
1755 depends on BROKEN_ON_SMP
1756 help
1757 Select this option if building a guest kernel for KVM (Trap & Emulate) mode
1758
1759 config KVM_HOST_FREQ
1760 int "KVM Host Processor Frequency (MHz)"
1761 depends on KVM_GUEST
1762 default 500
1763 help
1764 Select this option if building a guest kernel for KVM to skip
1765 RTC emulation when determining guest CPU Frequency. Instead, the guest
1766 processor frequency is automatically derived from the host frequency.
1767
1768 choice
1769 prompt "Kernel page size"
1770 default PAGE_SIZE_4KB
1771
1772 config PAGE_SIZE_4KB
1773 bool "4kB"
1774 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
1775 help
1776 This option select the standard 4kB Linux page size. On some
1777 R3000-family processors this is the only available page size. Using
1778 4kB page size will minimize memory consumption and is therefore
1779 recommended for low memory systems.
1780
1781 config PAGE_SIZE_8KB
1782 bool "8kB"
1783 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
1784 help
1785 Using 8kB page size will result in higher performance kernel at
1786 the price of higher memory consumption. This option is available
1787 only on R8000 and cnMIPS processors. Note that you will need a
1788 suitable Linux distribution to support this.
1789
1790 config PAGE_SIZE_16KB
1791 bool "16kB"
1792 depends on !CPU_R3000 && !CPU_TX39XX
1793 help
1794 Using 16kB page size will result in higher performance kernel at
1795 the price of higher memory consumption. This option is available on
1796 all non-R3000 family processors. Note that you will need a suitable
1797 Linux distribution to support this.
1798
1799 config PAGE_SIZE_32KB
1800 bool "32kB"
1801 depends on CPU_CAVIUM_OCTEON
1802 help
1803 Using 32kB page size will result in higher performance kernel at
1804 the price of higher memory consumption. This option is available
1805 only on cnMIPS cores. Note that you will need a suitable Linux
1806 distribution to support this.
1807
1808 config PAGE_SIZE_64KB
1809 bool "64kB"
1810 depends on !CPU_R3000 && !CPU_TX39XX
1811 help
1812 Using 64kB page size will result in higher performance kernel at
1813 the price of higher memory consumption. This option is available on
1814 all non-R3000 family processor. Not that at the time of this
1815 writing this option is still high experimental.
1816
1817 endchoice
1818
1819 config FORCE_MAX_ZONEORDER
1820 int "Maximum zone order"
1821 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
1822 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
1823 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
1824 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
1825 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
1826 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
1827 range 11 64
1828 default "11"
1829 help
1830 The kernel memory allocator divides physically contiguous memory
1831 blocks into "zones", where each zone is a power of two number of
1832 pages. This option selects the largest power of two that the kernel
1833 keeps in the memory allocator. If you need to allocate very large
1834 blocks of physically contiguous memory, then you may need to
1835 increase this value.
1836
1837 This config option is actually maximum order plus one. For example,
1838 a value of 11 means that the largest free memory block is 2^10 pages.
1839
1840 The page size is not necessarily 4KB. Keep this in mind
1841 when choosing a value for this option.
1842
1843 config CEVT_GIC
1844 bool "Use GIC global counter for clock events"
1845 depends on IRQ_GIC && !(MIPS_SEAD3 || MIPS_MT_SMTC)
1846 help
1847 Use the GIC global counter for the clock events. The R4K clock
1848 event driver is always present, so if the platform ends up not
1849 detecting a GIC, it will fall back to the R4K timer for the
1850 generation of clock events.
1851
1852 config BOARD_SCACHE
1853 bool
1854
1855 config IP22_CPU_SCACHE
1856 bool
1857 select BOARD_SCACHE
1858
1859 #
1860 # Support for a MIPS32 / MIPS64 style S-caches
1861 #
1862 config MIPS_CPU_SCACHE
1863 bool
1864 select BOARD_SCACHE
1865 select MIPS_L1_CACHE_SHIFT_6
1866
1867 config R5000_CPU_SCACHE
1868 bool
1869 select BOARD_SCACHE
1870
1871 config RM7000_CPU_SCACHE
1872 bool
1873 select BOARD_SCACHE
1874
1875 config SIBYTE_DMA_PAGEOPS
1876 bool "Use DMA to clear/copy pages"
1877 depends on CPU_SB1
1878 help
1879 Instead of using the CPU to zero and copy pages, use a Data Mover
1880 channel. These DMA channels are otherwise unused by the standard
1881 SiByte Linux port. Seems to give a small performance benefit.
1882
1883 config CPU_HAS_PREFETCH
1884 bool
1885
1886 config CPU_GENERIC_DUMP_TLB
1887 bool
1888 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1889
1890 config CPU_R4K_FPU
1891 bool
1892 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1893
1894 config CPU_R4K_CACHE_TLB
1895 bool
1896 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1897
1898 choice
1899 prompt "MIPS MT options"
1900
1901 config MIPS_MT_DISABLED
1902 bool "Disable multithreading support"
1903 help
1904 Use this option if your platform does not support the MT ASE
1905 which is hardware multithreading support. On systems without
1906 an MT-enabled processor, this will be the only option that is
1907 available in this menu.
1908
1909 config MIPS_MT_SMP
1910 bool "Use 1 TC on each available VPE for SMP"
1911 depends on SYS_SUPPORTS_MULTITHREADING
1912 select CPU_MIPSR2_IRQ_VI
1913 select CPU_MIPSR2_IRQ_EI
1914 select SYNC_R4K
1915 select MIPS_GIC_IPI
1916 select MIPS_MT
1917 select SMP
1918 select SMP_UP
1919 select SYS_SUPPORTS_SMP
1920 select SYS_SUPPORTS_SCHED_SMT
1921 select MIPS_PERF_SHARED_TC_COUNTERS
1922 help
1923 This is a kernel model which is known as SMVP. This is supported
1924 on cores with the MT ASE and uses the available VPEs to implement
1925 virtual processors which supports SMP. This is equivalent to the
1926 Intel Hyperthreading feature. For further information go to
1927 <http://www.imgtec.com/mips/mips-multithreading.asp>.
1928
1929 config MIPS_MT_SMTC
1930 bool "Use all TCs on all VPEs for SMP (DEPRECATED)"
1931 depends on CPU_MIPS32_R2
1932 depends on SYS_SUPPORTS_MULTITHREADING
1933 depends on !MIPS_CPS
1934 select CPU_MIPSR2_IRQ_VI
1935 select CPU_MIPSR2_IRQ_EI
1936 select MIPS_MT
1937 select SMP
1938 select SMP_UP
1939 select SYS_SUPPORTS_SMP
1940 select NR_CPUS_DEFAULT_8
1941 help
1942 This is a kernel model which is known as SMTC. This is
1943 supported on cores with the MT ASE and presents all TCs
1944 available on all VPEs to support SMP. For further
1945 information see <http://www.linux-mips.org/wiki/34K#SMTC>.
1946
1947 endchoice
1948
1949 config MIPS_MT
1950 bool
1951
1952 config SCHED_SMT
1953 bool "SMT (multithreading) scheduler support"
1954 depends on SYS_SUPPORTS_SCHED_SMT
1955 default n
1956 help
1957 SMT scheduler support improves the CPU scheduler's decision making
1958 when dealing with MIPS MT enabled cores at a cost of slightly
1959 increased overhead in some places. If unsure say N here.
1960
1961 config SYS_SUPPORTS_SCHED_SMT
1962 bool
1963
1964 config SYS_SUPPORTS_MULTITHREADING
1965 bool
1966
1967 config MIPS_MT_FPAFF
1968 bool "Dynamic FPU affinity for FP-intensive threads"
1969 default y
1970 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1971
1972 config MIPS_VPE_LOADER
1973 bool "VPE loader support."
1974 depends on SYS_SUPPORTS_MULTITHREADING && MODULES
1975 select CPU_MIPSR2_IRQ_VI
1976 select CPU_MIPSR2_IRQ_EI
1977 select MIPS_MT
1978 help
1979 Includes a loader for loading an elf relocatable object
1980 onto another VPE and running it.
1981
1982 config MIPS_VPE_LOADER_CMP
1983 bool
1984 default "y"
1985 depends on MIPS_VPE_LOADER && MIPS_CMP
1986
1987 config MIPS_VPE_LOADER_MT
1988 bool
1989 default "y"
1990 depends on MIPS_VPE_LOADER && !MIPS_CMP
1991
1992 config MIPS_MT_SMTC_IM_BACKSTOP
1993 bool "Use per-TC register bits as backstop for inhibited IM bits"
1994 depends on MIPS_MT_SMTC
1995 default n
1996 help
1997 To support multiple TC microthreads acting as "CPUs" within
1998 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1999 during interrupt handling. To support legacy drivers and interrupt
2000 controller management code, SMTC has a "backstop" to track and
2001 if necessary restore the interrupt mask. This has some performance
2002 impact on interrupt service overhead.
2003
2004 config MIPS_MT_SMTC_IRQAFF
2005 bool "Support IRQ affinity API"
2006 depends on MIPS_MT_SMTC
2007 default n
2008 help
2009 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
2010 for SMTC Linux kernel. Requires platform support, of which
2011 an example can be found in the MIPS kernel i8259 and Malta
2012 platform code. Adds some overhead to interrupt dispatch, and
2013 should be used only if you know what you are doing.
2014
2015 config MIPS_VPE_LOADER_TOM
2016 bool "Load VPE program into memory hidden from linux"
2017 depends on MIPS_VPE_LOADER
2018 default y
2019 help
2020 The loader can use memory that is present but has been hidden from
2021 Linux using the kernel command line option "mem=xxMB". It's up to
2022 you to ensure the amount you put in the option and the space your
2023 program requires is less or equal to the amount physically present.
2024
2025 config MIPS_VPE_APSP_API
2026 bool "Enable support for AP/SP API (RTLX)"
2027 depends on MIPS_VPE_LOADER
2028 help
2029
2030 config MIPS_VPE_APSP_API_CMP
2031 bool
2032 default "y"
2033 depends on MIPS_VPE_APSP_API && MIPS_CMP
2034
2035 config MIPS_VPE_APSP_API_MT
2036 bool
2037 default "y"
2038 depends on MIPS_VPE_APSP_API && !MIPS_CMP
2039
2040 config MIPS_CMP
2041 bool "MIPS CMP framework support (DEPRECATED)"
2042 depends on SYS_SUPPORTS_MIPS_CMP && !MIPS_MT_SMTC
2043 select MIPS_GIC_IPI
2044 select SYNC_R4K
2045 select WEAK_ORDERING
2046 default n
2047 help
2048 Select this if you are using a bootloader which implements the "CMP
2049 framework" protocol (ie. YAMON) and want your kernel to make use of
2050 its ability to start secondary CPUs.
2051
2052 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2053 instead of this.
2054
2055 config MIPS_CPS
2056 bool "MIPS Coherent Processing System support"
2057 depends on SYS_SUPPORTS_MIPS_CPS
2058 select MIPS_CM
2059 select MIPS_CPC
2060 select MIPS_GIC_IPI
2061 select SMP
2062 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2063 select SYS_SUPPORTS_SMP
2064 select WEAK_ORDERING
2065 help
2066 Select this if you wish to run an SMP kernel across multiple cores
2067 within a MIPS Coherent Processing System. When this option is
2068 enabled the kernel will probe for other cores and boot them with
2069 no external assistance. It is safe to enable this when hardware
2070 support is unavailable.
2071
2072 config MIPS_GIC_IPI
2073 bool
2074
2075 config MIPS_CM
2076 bool
2077
2078 config MIPS_CPC
2079 bool
2080
2081 config SB1_PASS_1_WORKAROUNDS
2082 bool
2083 depends on CPU_SB1_PASS_1
2084 default y
2085
2086 config SB1_PASS_2_WORKAROUNDS
2087 bool
2088 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2089 default y
2090
2091 config SB1_PASS_2_1_WORKAROUNDS
2092 bool
2093 depends on CPU_SB1 && CPU_SB1_PASS_2
2094 default y
2095
2096
2097 config 64BIT_PHYS_ADDR
2098 bool
2099
2100 config ARCH_PHYS_ADDR_T_64BIT
2101 def_bool 64BIT_PHYS_ADDR
2102
2103 config CPU_HAS_SMARTMIPS
2104 depends on SYS_SUPPORTS_SMARTMIPS
2105 bool "Support for the SmartMIPS ASE"
2106 help
2107 SmartMIPS is a extension of the MIPS32 architecture aimed at
2108 increased security at both hardware and software level for
2109 smartcards. Enabling this option will allow proper use of the
2110 SmartMIPS instructions by Linux applications. However a kernel with
2111 this option will not work on a MIPS core without SmartMIPS core. If
2112 you don't know you probably don't have SmartMIPS and should say N
2113 here.
2114
2115 config CPU_MICROMIPS
2116 depends on SYS_SUPPORTS_MICROMIPS
2117 bool "Build kernel using microMIPS ISA"
2118 help
2119 When this option is enabled the kernel will be built using the
2120 microMIPS ISA
2121
2122 config CPU_HAS_MSA
2123 bool "Support for the MIPS SIMD Architecture"
2124 depends on CPU_SUPPORTS_MSA
2125 default y
2126 help
2127 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2128 and a set of SIMD instructions to operate on them. When this option
2129 is enabled the kernel will support allocating & switching MSA
2130 vector register contexts. If you know that your kernel will only be
2131 running on CPUs which do not support MSA or that your userland will
2132 not be making use of it then you may wish to say N here to reduce
2133 the size & complexity of your kernel.
2134
2135 If unsure, say Y.
2136
2137 config CPU_HAS_WB
2138 bool
2139
2140 config XKS01
2141 bool
2142
2143 #
2144 # Vectored interrupt mode is an R2 feature
2145 #
2146 config CPU_MIPSR2_IRQ_VI
2147 bool
2148
2149 #
2150 # Extended interrupt mode is an R2 feature
2151 #
2152 config CPU_MIPSR2_IRQ_EI
2153 bool
2154
2155 config CPU_HAS_SYNC
2156 bool
2157 depends on !CPU_R3000
2158 default y
2159
2160 #
2161 # CPU non-features
2162 #
2163 config CPU_DADDI_WORKAROUNDS
2164 bool
2165
2166 config CPU_R4000_WORKAROUNDS
2167 bool
2168 select CPU_R4400_WORKAROUNDS
2169
2170 config CPU_R4400_WORKAROUNDS
2171 bool
2172
2173 #
2174 # - Highmem only makes sense for the 32-bit kernel.
2175 # - The current highmem code will only work properly on physically indexed
2176 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2177 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2178 # moment we protect the user and offer the highmem option only on machines
2179 # where it's known to be safe. This will not offer highmem on a few systems
2180 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2181 # indexed CPUs but we're playing safe.
2182 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2183 # know they might have memory configurations that could make use of highmem
2184 # support.
2185 #
2186 config HIGHMEM
2187 bool "High Memory Support"
2188 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2189
2190 config CPU_SUPPORTS_HIGHMEM
2191 bool
2192
2193 config SYS_SUPPORTS_HIGHMEM
2194 bool
2195
2196 config SYS_SUPPORTS_SMARTMIPS
2197 bool
2198
2199 config SYS_SUPPORTS_MICROMIPS
2200 bool
2201
2202 config CPU_SUPPORTS_MSA
2203 bool
2204
2205 config ARCH_FLATMEM_ENABLE
2206 def_bool y
2207 depends on !NUMA && !CPU_LOONGSON2
2208
2209 config ARCH_DISCONTIGMEM_ENABLE
2210 bool
2211 default y if SGI_IP27
2212 help
2213 Say Y to support efficient handling of discontiguous physical memory,
2214 for architectures which are either NUMA (Non-Uniform Memory Access)
2215 or have huge holes in the physical address space for other reasons.
2216 See <file:Documentation/vm/numa> for more.
2217
2218 config ARCH_SPARSEMEM_ENABLE
2219 bool
2220 select SPARSEMEM_STATIC
2221
2222 config NUMA
2223 bool "NUMA Support"
2224 depends on SYS_SUPPORTS_NUMA
2225 help
2226 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2227 Access). This option improves performance on systems with more
2228 than two nodes; on two node systems it is generally better to
2229 leave it disabled; on single node systems disable this option
2230 disabled.
2231
2232 config SYS_SUPPORTS_NUMA
2233 bool
2234
2235 config NODES_SHIFT
2236 int
2237 default "6"
2238 depends on NEED_MULTIPLE_NODES
2239
2240 config HW_PERF_EVENTS
2241 bool "Enable hardware performance counter support for perf events"
2242 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2243 default y
2244 help
2245 Enable hardware performance counter support for perf events. If
2246 disabled, perf events will use software events only.
2247
2248 source "mm/Kconfig"
2249
2250 config SMP
2251 bool "Multi-Processing support"
2252 depends on SYS_SUPPORTS_SMP
2253 help
2254 This enables support for systems with more than one CPU. If you have
2255 a system with only one CPU, say N. If you have a system with more
2256 than one CPU, say Y.
2257
2258 If you say N here, the kernel will run on uni- and multiprocessor
2259 machines, but will use only one CPU of a multiprocessor machine. If
2260 you say Y here, the kernel will run on many, but not all,
2261 uniprocessor machines. On a uniprocessor machine, the kernel
2262 will run faster if you say N here.
2263
2264 People using multiprocessor machines who say Y here should also say
2265 Y to "Enhanced Real Time Clock Support", below.
2266
2267 See also the SMP-HOWTO available at
2268 <http://www.tldp.org/docs.html#howto>.
2269
2270 If you don't know what to do here, say N.
2271
2272 config SMP_UP
2273 bool
2274
2275 config SYS_SUPPORTS_MIPS_CMP
2276 bool
2277
2278 config SYS_SUPPORTS_MIPS_CPS
2279 bool
2280
2281 config SYS_SUPPORTS_SMP
2282 bool
2283
2284 config NR_CPUS_DEFAULT_4
2285 bool
2286
2287 config NR_CPUS_DEFAULT_8
2288 bool
2289
2290 config NR_CPUS_DEFAULT_16
2291 bool
2292
2293 config NR_CPUS_DEFAULT_32
2294 bool
2295
2296 config NR_CPUS_DEFAULT_64
2297 bool
2298
2299 config NR_CPUS
2300 int "Maximum number of CPUs (2-64)"
2301 range 2 64
2302 depends on SMP
2303 default "4" if NR_CPUS_DEFAULT_4
2304 default "8" if NR_CPUS_DEFAULT_8
2305 default "16" if NR_CPUS_DEFAULT_16
2306 default "32" if NR_CPUS_DEFAULT_32
2307 default "64" if NR_CPUS_DEFAULT_64
2308 help
2309 This allows you to specify the maximum number of CPUs which this
2310 kernel will support. The maximum supported value is 32 for 32-bit
2311 kernel and 64 for 64-bit kernels; the minimum value which makes
2312 sense is 1 for Qemu (useful only for kernel debugging purposes)
2313 and 2 for all others.
2314
2315 This is purely to save memory - each supported CPU adds
2316 approximately eight kilobytes to the kernel image. For best
2317 performance should round up your number of processors to the next
2318 power of two.
2319
2320 config MIPS_PERF_SHARED_TC_COUNTERS
2321 bool
2322
2323 #
2324 # Timer Interrupt Frequency Configuration
2325 #
2326
2327 choice
2328 prompt "Timer frequency"
2329 default HZ_250
2330 help
2331 Allows the configuration of the timer frequency.
2332
2333 config HZ_48
2334 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2335
2336 config HZ_100
2337 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2338
2339 config HZ_128
2340 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2341
2342 config HZ_250
2343 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2344
2345 config HZ_256
2346 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2347
2348 config HZ_1000
2349 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2350
2351 config HZ_1024
2352 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2353
2354 endchoice
2355
2356 config SYS_SUPPORTS_48HZ
2357 bool
2358
2359 config SYS_SUPPORTS_100HZ
2360 bool
2361
2362 config SYS_SUPPORTS_128HZ
2363 bool
2364
2365 config SYS_SUPPORTS_250HZ
2366 bool
2367
2368 config SYS_SUPPORTS_256HZ
2369 bool
2370
2371 config SYS_SUPPORTS_1000HZ
2372 bool
2373
2374 config SYS_SUPPORTS_1024HZ
2375 bool
2376
2377 config SYS_SUPPORTS_ARBIT_HZ
2378 bool
2379 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2380 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2381 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2382 !SYS_SUPPORTS_1024HZ
2383
2384 config HZ
2385 int
2386 default 48 if HZ_48
2387 default 100 if HZ_100
2388 default 128 if HZ_128
2389 default 250 if HZ_250
2390 default 256 if HZ_256
2391 default 1000 if HZ_1000
2392 default 1024 if HZ_1024
2393
2394 source "kernel/Kconfig.preempt"
2395
2396 config KEXEC
2397 bool "Kexec system call"
2398 help
2399 kexec is a system call that implements the ability to shutdown your
2400 current kernel, and to start another kernel. It is like a reboot
2401 but it is independent of the system firmware. And like a reboot
2402 you can start any kernel with it, not just Linux.
2403
2404 The name comes from the similarity to the exec system call.
2405
2406 It is an ongoing process to be certain the hardware in a machine
2407 is properly shutdown, so do not be surprised if this code does not
2408 initially work for you. As of this writing the exact hardware
2409 interface is strongly in flux, so no good recommendation can be
2410 made.
2411
2412 config CRASH_DUMP
2413 bool "Kernel crash dumps"
2414 help
2415 Generate crash dump after being started by kexec.
2416 This should be normally only set in special crash dump kernels
2417 which are loaded in the main kernel with kexec-tools into
2418 a specially reserved region and then later executed after
2419 a crash by kdump/kexec. The crash dump kernel must be compiled
2420 to a memory address not used by the main kernel or firmware using
2421 PHYSICAL_START.
2422
2423 config PHYSICAL_START
2424 hex "Physical address where the kernel is loaded"
2425 default "0xffffffff84000000" if 64BIT
2426 default "0x84000000" if 32BIT
2427 depends on CRASH_DUMP
2428 help
2429 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2430 If you plan to use kernel for capturing the crash dump change
2431 this value to start of the reserved region (the "X" value as
2432 specified in the "crashkernel=YM@XM" command line boot parameter
2433 passed to the panic-ed kernel).
2434
2435 config SECCOMP
2436 bool "Enable seccomp to safely compute untrusted bytecode"
2437 depends on PROC_FS
2438 default y
2439 help
2440 This kernel feature is useful for number crunching applications
2441 that may need to compute untrusted bytecode during their
2442 execution. By using pipes or other transports made available to
2443 the process as file descriptors supporting the read/write
2444 syscalls, it's possible to isolate those applications in
2445 their own address space using seccomp. Once seccomp is
2446 enabled via /proc/<pid>/seccomp, it cannot be disabled
2447 and the task is only allowed to execute a few safe syscalls
2448 defined by each seccomp mode.
2449
2450 If unsure, say Y. Only embedded should say N here.
2451
2452 config MIPS_O32_FP64_SUPPORT
2453 bool "Support for O32 binaries using 64-bit FP (EXPERIMENTAL)"
2454 depends on 32BIT || MIPS32_O32
2455 help
2456 When this is enabled, the kernel will support use of 64-bit floating
2457 point registers with binaries using the O32 ABI along with the
2458 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2459 32-bit MIPS systems this support is at the cost of increasing the
2460 size and complexity of the compiled FPU emulator. Thus if you are
2461 running a MIPS32 system and know that none of your userland binaries
2462 will require 64-bit floating point, you may wish to reduce the size
2463 of your kernel & potentially improve FP emulation performance by
2464 saying N here.
2465
2466 Although binutils currently supports use of this flag the details
2467 concerning its effect upon the O32 ABI in userland are still being
2468 worked on. In order to avoid userland becoming dependant upon current
2469 behaviour before the details have been finalised, this option should
2470 be considered experimental and only enabled by those working upon
2471 said details.
2472
2473 If unsure, say N.
2474
2475 config USE_OF
2476 bool
2477 select OF
2478 select OF_EARLY_FLATTREE
2479 select IRQ_DOMAIN
2480
2481 endmenu
2482
2483 config LOCKDEP_SUPPORT
2484 bool
2485 default y
2486
2487 config STACKTRACE_SUPPORT
2488 bool
2489 default y
2490
2491 source "init/Kconfig"
2492
2493 source "kernel/Kconfig.freezer"
2494
2495 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2496
2497 config HW_HAS_EISA
2498 bool
2499 config HW_HAS_PCI
2500 bool
2501
2502 config PCI
2503 bool "Support for PCI controller"
2504 depends on HW_HAS_PCI
2505 select PCI_DOMAINS
2506 select NO_GENERIC_PCI_IOPORT_MAP
2507 help
2508 Find out whether you have a PCI motherboard. PCI is the name of a
2509 bus system, i.e. the way the CPU talks to the other stuff inside
2510 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2511 say Y, otherwise N.
2512
2513 config HT_PCI
2514 bool "Support for HT-linked PCI"
2515 default y
2516 depends on CPU_LOONGSON3
2517 select PCI
2518 select PCI_DOMAINS
2519 help
2520 Loongson family machines use Hyper-Transport bus for inter-core
2521 connection and device connection. The PCI bus is a subordinate
2522 linked at HT. Choose Y for Loongson-3 based machines.
2523
2524 config PCI_DOMAINS
2525 bool
2526
2527 source "drivers/pci/Kconfig"
2528
2529 source "drivers/pci/pcie/Kconfig"
2530
2531 #
2532 # ISA support is now enabled via select. Too many systems still have the one
2533 # or other ISA chip on the board that users don't know about so don't expect
2534 # users to choose the right thing ...
2535 #
2536 config ISA
2537 bool
2538
2539 config EISA
2540 bool "EISA support"
2541 depends on HW_HAS_EISA
2542 select ISA
2543 select GENERIC_ISA_DMA
2544 ---help---
2545 The Extended Industry Standard Architecture (EISA) bus was
2546 developed as an open alternative to the IBM MicroChannel bus.
2547
2548 The EISA bus provided some of the features of the IBM MicroChannel
2549 bus while maintaining backward compatibility with cards made for
2550 the older ISA bus. The EISA bus saw limited use between 1988 and
2551 1995 when it was made obsolete by the PCI bus.
2552
2553 Say Y here if you are building a kernel for an EISA-based machine.
2554
2555 Otherwise, say N.
2556
2557 source "drivers/eisa/Kconfig"
2558
2559 config TC
2560 bool "TURBOchannel support"
2561 depends on MACH_DECSTATION
2562 help
2563 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2564 processors. TURBOchannel programming specifications are available
2565 at:
2566 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2567 and:
2568 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2569 Linux driver support status is documented at:
2570 <http://www.linux-mips.org/wiki/DECstation>
2571
2572 config MMU
2573 bool
2574 default y
2575
2576 config I8253
2577 bool
2578 select CLKSRC_I8253
2579 select CLKEVT_I8253
2580 select MIPS_EXTERNAL_TIMER
2581
2582 config ZONE_DMA
2583 bool
2584
2585 config ZONE_DMA32
2586 bool
2587
2588 source "drivers/pcmcia/Kconfig"
2589
2590 source "drivers/pci/hotplug/Kconfig"
2591
2592 config RAPIDIO
2593 tristate "RapidIO support"
2594 depends on PCI
2595 default n
2596 help
2597 If you say Y here, the kernel will include drivers and
2598 infrastructure code to support RapidIO interconnect devices.
2599
2600 source "drivers/rapidio/Kconfig"
2601
2602 endmenu
2603
2604 menu "Executable file formats"
2605
2606 source "fs/Kconfig.binfmt"
2607
2608 config TRAD_SIGNALS
2609 bool
2610
2611 config MIPS32_COMPAT
2612 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2613 depends on 64BIT
2614 help
2615 Select this option if you want Linux/MIPS 32-bit binary
2616 compatibility. Since all software available for Linux/MIPS is
2617 currently 32-bit you should say Y here.
2618
2619 config COMPAT
2620 bool
2621 depends on MIPS32_COMPAT
2622 select ARCH_WANT_OLD_COMPAT_IPC
2623 default y
2624
2625 config SYSVIPC_COMPAT
2626 bool
2627 depends on COMPAT && SYSVIPC
2628 default y
2629
2630 config MIPS32_O32
2631 bool "Kernel support for o32 binaries"
2632 depends on MIPS32_COMPAT
2633 help
2634 Select this option if you want to run o32 binaries. These are pure
2635 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2636 existing binaries are in this format.
2637
2638 If unsure, say Y.
2639
2640 config MIPS32_N32
2641 bool "Kernel support for n32 binaries"
2642 depends on MIPS32_COMPAT
2643 help
2644 Select this option if you want to run n32 binaries. These are
2645 64-bit binaries using 32-bit quantities for addressing and certain
2646 data that would normally be 64-bit. They are used in special
2647 cases.
2648
2649 If unsure, say N.
2650
2651 config BINFMT_ELF32
2652 bool
2653 default y if MIPS32_O32 || MIPS32_N32
2654
2655 endmenu
2656
2657 menu "Power management options"
2658
2659 config ARCH_HIBERNATION_POSSIBLE
2660 def_bool y
2661 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2662
2663 config ARCH_SUSPEND_POSSIBLE
2664 def_bool y
2665 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2666
2667 source "kernel/power/Kconfig"
2668
2669 endmenu
2670
2671 config MIPS_EXTERNAL_TIMER
2672 bool
2673
2674 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
2675 menu "CPU Power Management"
2676 source "drivers/cpufreq/Kconfig"
2677 endmenu
2678 endif
2679
2680 source "net/Kconfig"
2681
2682 source "drivers/Kconfig"
2683
2684 source "drivers/firmware/Kconfig"
2685
2686 source "fs/Kconfig"
2687
2688 source "arch/mips/Kconfig.debug"
2689
2690 source "security/Kconfig"
2691
2692 source "crypto/Kconfig"
2693
2694 source "lib/Kconfig"
2695
2696 source "arch/mips/kvm/Kconfig"