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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 HAVE_BPF_JIT if !CPU_MICROMIPS
16 select ARCH_HAVE_CUSTOM_GPIO_H
17 select HAVE_FUNCTION_TRACER
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 select CPU_PM if CPU_IDLE
54 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
55
56 menu "Machine selection"
57
58 choice
59 prompt "System type"
60 default SGI_IP22
61
62 config MIPS_ALCHEMY
63 bool "Alchemy processor based machines"
64 select 64BIT_PHYS_ADDR
65 select CEVT_R4K
66 select CSRC_R4K
67 select IRQ_CPU
68 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is
69 select SYS_HAS_CPU_MIPS32_R1
70 select SYS_SUPPORTS_32BIT_KERNEL
71 select SYS_SUPPORTS_APM_EMULATION
72 select ARCH_REQUIRE_GPIOLIB
73 select SYS_SUPPORTS_ZBOOT
74 select COMMON_CLK
75
76 config AR7
77 bool "Texas Instruments AR7"
78 select BOOT_ELF32
79 select DMA_NONCOHERENT
80 select CEVT_R4K
81 select CSRC_R4K
82 select IRQ_CPU
83 select NO_EXCEPT_FILL
84 select SWAP_IO_SPACE
85 select SYS_HAS_CPU_MIPS32_R1
86 select SYS_HAS_EARLY_PRINTK
87 select SYS_SUPPORTS_32BIT_KERNEL
88 select SYS_SUPPORTS_LITTLE_ENDIAN
89 select SYS_SUPPORTS_MIPS16
90 select SYS_SUPPORTS_ZBOOT_UART16550
91 select ARCH_REQUIRE_GPIOLIB
92 select VLYNQ
93 select HAVE_CLK
94 help
95 Support for the Texas Instruments AR7 System-on-a-Chip
96 family: TNETD7100, 7200 and 7300.
97
98 config ATH79
99 bool "Atheros AR71XX/AR724X/AR913X based boards"
100 select ARCH_REQUIRE_GPIOLIB
101 select BOOT_RAW
102 select CEVT_R4K
103 select CSRC_R4K
104 select DMA_NONCOHERENT
105 select HAVE_CLK
106 select CLKDEV_LOOKUP
107 select IRQ_CPU
108 select MIPS_MACHINE
109 select SYS_HAS_CPU_MIPS32_R2
110 select SYS_HAS_EARLY_PRINTK
111 select SYS_SUPPORTS_32BIT_KERNEL
112 select SYS_SUPPORTS_BIG_ENDIAN
113 select SYS_SUPPORTS_MIPS16
114 help
115 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
116
117 config BCM47XX
118 bool "Broadcom BCM47XX based boards"
119 select ARCH_WANT_OPTIONAL_GPIOLIB
120 select BOOT_RAW
121 select CEVT_R4K
122 select CSRC_R4K
123 select DMA_NONCOHERENT
124 select HW_HAS_PCI
125 select IRQ_CPU
126 select SYS_HAS_CPU_MIPS32_R1
127 select NO_EXCEPT_FILL
128 select SYS_SUPPORTS_32BIT_KERNEL
129 select SYS_SUPPORTS_LITTLE_ENDIAN
130 select SYS_SUPPORTS_MIPS16
131 select SYS_HAS_EARLY_PRINTK
132 select USE_GENERIC_EARLY_PRINTK_8250
133 select GPIOLIB
134 select LEDS_GPIO_REGISTER
135 help
136 Support for BCM47XX based boards
137
138 config BCM63XX
139 bool "Broadcom BCM63XX based boards"
140 select BOOT_RAW
141 select CEVT_R4K
142 select CSRC_R4K
143 select SYNC_R4K
144 select DMA_NONCOHERENT
145 select IRQ_CPU
146 select SYS_SUPPORTS_32BIT_KERNEL
147 select SYS_SUPPORTS_BIG_ENDIAN
148 select SYS_HAS_EARLY_PRINTK
149 select SWAP_IO_SPACE
150 select ARCH_REQUIRE_GPIOLIB
151 select HAVE_CLK
152 select MIPS_L1_CACHE_SHIFT_4
153 help
154 Support for BCM63XX based boards
155
156 config MIPS_COBALT
157 bool "Cobalt Server"
158 select CEVT_R4K
159 select CSRC_R4K
160 select CEVT_GT641XX
161 select DMA_NONCOHERENT
162 select HW_HAS_PCI
163 select I8253
164 select I8259
165 select IRQ_CPU
166 select IRQ_GT641XX
167 select PCI_GT64XXX_PCI0
168 select PCI
169 select SYS_HAS_CPU_NEVADA
170 select SYS_HAS_EARLY_PRINTK
171 select SYS_SUPPORTS_32BIT_KERNEL
172 select SYS_SUPPORTS_64BIT_KERNEL
173 select SYS_SUPPORTS_LITTLE_ENDIAN
174 select USE_GENERIC_EARLY_PRINTK_8250
175
176 config MACH_DECSTATION
177 bool "DECstations"
178 select BOOT_ELF32
179 select CEVT_DS1287
180 select CEVT_R4K if CPU_R4X00
181 select CSRC_IOASIC
182 select CSRC_R4K if CPU_R4X00
183 select CPU_DADDI_WORKAROUNDS if 64BIT
184 select CPU_R4000_WORKAROUNDS if 64BIT
185 select CPU_R4400_WORKAROUNDS if 64BIT
186 select DMA_NONCOHERENT
187 select NO_IOPORT_MAP
188 select IRQ_CPU
189 select SYS_HAS_CPU_R3000
190 select SYS_HAS_CPU_R4X00
191 select SYS_SUPPORTS_32BIT_KERNEL
192 select SYS_SUPPORTS_64BIT_KERNEL
193 select SYS_SUPPORTS_LITTLE_ENDIAN
194 select SYS_SUPPORTS_128HZ
195 select SYS_SUPPORTS_256HZ
196 select SYS_SUPPORTS_1024HZ
197 select MIPS_L1_CACHE_SHIFT_4
198 help
199 This enables support for DEC's MIPS based workstations. For details
200 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
201 DECstation porting pages on <http://decstation.unix-ag.org/>.
202
203 If you have one of the following DECstation Models you definitely
204 want to choose R4xx0 for the CPU Type:
205
206 DECstation 5000/50
207 DECstation 5000/150
208 DECstation 5000/260
209 DECsystem 5900/260
210
211 otherwise choose R3000.
212
213 config MACH_JAZZ
214 bool "Jazz family of machines"
215 select FW_ARC
216 select FW_ARC32
217 select ARCH_MAY_HAVE_PC_FDC
218 select CEVT_R4K
219 select CSRC_R4K
220 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
221 select GENERIC_ISA_DMA
222 select HAVE_PCSPKR_PLATFORM
223 select IRQ_CPU
224 select I8253
225 select I8259
226 select ISA
227 select SYS_HAS_CPU_R4X00
228 select SYS_SUPPORTS_32BIT_KERNEL
229 select SYS_SUPPORTS_64BIT_KERNEL
230 select SYS_SUPPORTS_100HZ
231 help
232 This a family of machines based on the MIPS R4030 chipset which was
233 used by several vendors to build RISC/os and Windows NT workstations.
234 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
235 Olivetti M700-10 workstations.
236
237 config MACH_JZ4740
238 bool "Ingenic JZ4740 based machines"
239 select SYS_HAS_CPU_MIPS32_R1
240 select SYS_SUPPORTS_32BIT_KERNEL
241 select SYS_SUPPORTS_LITTLE_ENDIAN
242 select SYS_SUPPORTS_ZBOOT_UART16550
243 select DMA_NONCOHERENT
244 select IRQ_CPU
245 select ARCH_REQUIRE_GPIOLIB
246 select SYS_HAS_EARLY_PRINTK
247 select HAVE_CLK
248 select GENERIC_IRQ_CHIP
249
250 config LANTIQ
251 bool "Lantiq based platforms"
252 select DMA_NONCOHERENT
253 select IRQ_CPU
254 select CEVT_R4K
255 select CSRC_R4K
256 select SYS_HAS_CPU_MIPS32_R1
257 select SYS_HAS_CPU_MIPS32_R2
258 select SYS_SUPPORTS_BIG_ENDIAN
259 select SYS_SUPPORTS_32BIT_KERNEL
260 select SYS_SUPPORTS_MIPS16
261 select SYS_SUPPORTS_MULTITHREADING
262 select SYS_HAS_EARLY_PRINTK
263 select ARCH_REQUIRE_GPIOLIB
264 select SWAP_IO_SPACE
265 select BOOT_RAW
266 select HAVE_MACH_CLKDEV
267 select CLKDEV_LOOKUP
268 select USE_OF
269 select PINCTRL
270 select PINCTRL_LANTIQ
271
272 config LASAT
273 bool "LASAT Networks platforms"
274 select CEVT_R4K
275 select CRC32
276 select CSRC_R4K
277 select DMA_NONCOHERENT
278 select SYS_HAS_EARLY_PRINTK
279 select HW_HAS_PCI
280 select IRQ_CPU
281 select PCI_GT64XXX_PCI0
282 select MIPS_NILE4
283 select R5000_CPU_SCACHE
284 select SYS_HAS_CPU_R5000
285 select SYS_SUPPORTS_32BIT_KERNEL
286 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
287 select SYS_SUPPORTS_LITTLE_ENDIAN
288
289 config MACH_LOONGSON
290 bool "Loongson family of machines"
291 select SYS_SUPPORTS_ZBOOT
292 help
293 This enables the support of Loongson family of machines.
294
295 Loongson is a family of general-purpose MIPS-compatible CPUs.
296 developed at Institute of Computing Technology (ICT),
297 Chinese Academy of Sciences (CAS) in the People's Republic
298 of China. The chief architect is Professor Weiwu Hu.
299
300 config MACH_LOONGSON1
301 bool "Loongson 1 family of machines"
302 select SYS_SUPPORTS_ZBOOT
303 help
304 This enables support for the Loongson 1 based machines.
305
306 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
307 the ICT (Institute of Computing Technology) and the Chinese Academy
308 of Sciences.
309
310 config MIPS_MALTA
311 bool "MIPS Malta board"
312 select ARCH_MAY_HAVE_PC_FDC
313 select BOOT_ELF32
314 select BOOT_RAW
315 select CEVT_R4K
316 select CSRC_R4K
317 select CSRC_GIC
318 select DMA_MAYBE_COHERENT
319 select GENERIC_ISA_DMA
320 select HAVE_PCSPKR_PLATFORM
321 select IRQ_CPU
322 select IRQ_GIC
323 select HW_HAS_PCI
324 select I8253
325 select I8259
326 select MIPS_BONITO64
327 select MIPS_CPU_SCACHE
328 select PCI_GT64XXX_PCI0
329 select MIPS_MSC
330 select SWAP_IO_SPACE
331 select SYS_HAS_CPU_MIPS32_R1
332 select SYS_HAS_CPU_MIPS32_R2
333 select SYS_HAS_CPU_MIPS32_R3_5
334 select SYS_HAS_CPU_MIPS64_R1
335 select SYS_HAS_CPU_MIPS64_R2
336 select SYS_HAS_CPU_NEVADA
337 select SYS_HAS_CPU_RM7000
338 select SYS_SUPPORTS_32BIT_KERNEL
339 select SYS_SUPPORTS_64BIT_KERNEL
340 select SYS_SUPPORTS_BIG_ENDIAN
341 select SYS_SUPPORTS_LITTLE_ENDIAN
342 select SYS_SUPPORTS_MIPS_CMP
343 select SYS_SUPPORTS_MIPS_CPS
344 select SYS_SUPPORTS_MIPS16
345 select SYS_SUPPORTS_MULTITHREADING
346 select SYS_SUPPORTS_SMARTMIPS
347 select SYS_SUPPORTS_ZBOOT
348 help
349 This enables support for the MIPS Technologies Malta evaluation
350 board.
351
352 config MIPS_SEAD3
353 bool "MIPS SEAD3 board"
354 select BOOT_ELF32
355 select BOOT_RAW
356 select CEVT_R4K
357 select CSRC_R4K
358 select CSRC_GIC
359 select CPU_MIPSR2_IRQ_VI
360 select CPU_MIPSR2_IRQ_EI
361 select DMA_NONCOHERENT
362 select IRQ_CPU
363 select IRQ_GIC
364 select LIBFDT
365 select MIPS_MSC
366 select SYS_HAS_CPU_MIPS32_R1
367 select SYS_HAS_CPU_MIPS32_R2
368 select SYS_HAS_CPU_MIPS64_R1
369 select SYS_HAS_EARLY_PRINTK
370 select SYS_SUPPORTS_32BIT_KERNEL
371 select SYS_SUPPORTS_64BIT_KERNEL
372 select SYS_SUPPORTS_BIG_ENDIAN
373 select SYS_SUPPORTS_LITTLE_ENDIAN
374 select SYS_SUPPORTS_SMARTMIPS
375 select SYS_SUPPORTS_MICROMIPS
376 select SYS_SUPPORTS_MIPS16
377 select USB_EHCI_BIG_ENDIAN_DESC
378 select USB_EHCI_BIG_ENDIAN_MMIO
379 select USE_OF
380 help
381 This enables support for the MIPS Technologies SEAD3 evaluation
382 board.
383
384 config NEC_MARKEINS
385 bool "NEC EMMA2RH Mark-eins board"
386 select SOC_EMMA2RH
387 select HW_HAS_PCI
388 help
389 This enables support for the NEC Electronics Mark-eins boards.
390
391 config MACH_VR41XX
392 bool "NEC VR4100 series based machines"
393 select CEVT_R4K
394 select CSRC_R4K
395 select SYS_HAS_CPU_VR41XX
396 select SYS_SUPPORTS_MIPS16
397 select ARCH_REQUIRE_GPIOLIB
398
399 config NXP_STB220
400 bool "NXP STB220 board"
401 select SOC_PNX833X
402 help
403 Support for NXP Semiconductors STB220 Development Board.
404
405 config NXP_STB225
406 bool "NXP 225 board"
407 select SOC_PNX833X
408 select SOC_PNX8335
409 help
410 Support for NXP Semiconductors STB225 Development Board.
411
412 config PMC_MSP
413 bool "PMC-Sierra MSP chipsets"
414 select CEVT_R4K
415 select CSRC_R4K
416 select DMA_NONCOHERENT
417 select SWAP_IO_SPACE
418 select NO_EXCEPT_FILL
419 select BOOT_RAW
420 select SYS_HAS_CPU_MIPS32_R1
421 select SYS_HAS_CPU_MIPS32_R2
422 select SYS_SUPPORTS_32BIT_KERNEL
423 select SYS_SUPPORTS_BIG_ENDIAN
424 select SYS_SUPPORTS_MIPS16
425 select IRQ_CPU
426 select SERIAL_8250
427 select SERIAL_8250_CONSOLE
428 select USB_EHCI_BIG_ENDIAN_MMIO
429 select USB_EHCI_BIG_ENDIAN_DESC
430 help
431 This adds support for the PMC-Sierra family of Multi-Service
432 Processor System-On-A-Chips. These parts include a number
433 of integrated peripherals, interfaces and DSPs in addition to
434 a variety of MIPS cores.
435
436 config RALINK
437 bool "Ralink based machines"
438 select CEVT_R4K
439 select CSRC_R4K
440 select BOOT_RAW
441 select DMA_NONCOHERENT
442 select IRQ_CPU
443 select USE_OF
444 select SYS_HAS_CPU_MIPS32_R1
445 select SYS_HAS_CPU_MIPS32_R2
446 select SYS_SUPPORTS_32BIT_KERNEL
447 select SYS_SUPPORTS_LITTLE_ENDIAN
448 select SYS_SUPPORTS_MIPS16
449 select SYS_HAS_EARLY_PRINTK
450 select HAVE_MACH_CLKDEV
451 select CLKDEV_LOOKUP
452 select ARCH_HAS_RESET_CONTROLLER
453 select RESET_CONTROLLER
454
455 config SGI_IP22
456 bool "SGI IP22 (Indy/Indigo2)"
457 select FW_ARC
458 select FW_ARC32
459 select BOOT_ELF32
460 select CEVT_R4K
461 select CSRC_R4K
462 select DEFAULT_SGI_PARTITION
463 select DMA_NONCOHERENT
464 select HW_HAS_EISA
465 select I8253
466 select I8259
467 select IP22_CPU_SCACHE
468 select IRQ_CPU
469 select GENERIC_ISA_DMA_SUPPORT_BROKEN
470 select SGI_HAS_I8042
471 select SGI_HAS_INDYDOG
472 select SGI_HAS_HAL2
473 select SGI_HAS_SEEQ
474 select SGI_HAS_WD93
475 select SGI_HAS_ZILOG
476 select SWAP_IO_SPACE
477 select SYS_HAS_CPU_R4X00
478 select SYS_HAS_CPU_R5000
479 #
480 # Disable EARLY_PRINTK for now since it leads to overwritten prom
481 # memory during early boot on some machines.
482 #
483 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
484 # for a more details discussion
485 #
486 # select SYS_HAS_EARLY_PRINTK
487 select SYS_SUPPORTS_32BIT_KERNEL
488 select SYS_SUPPORTS_64BIT_KERNEL
489 select SYS_SUPPORTS_BIG_ENDIAN
490 select MIPS_L1_CACHE_SHIFT_7
491 help
492 This are the SGI Indy, Challenge S and Indigo2, as well as certain
493 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
494 that runs on these, say Y here.
495
496 config SGI_IP27
497 bool "SGI IP27 (Origin200/2000)"
498 select FW_ARC
499 select FW_ARC64
500 select BOOT_ELF64
501 select DEFAULT_SGI_PARTITION
502 select DMA_COHERENT
503 select SYS_HAS_EARLY_PRINTK
504 select HW_HAS_PCI
505 select NR_CPUS_DEFAULT_64
506 select SYS_HAS_CPU_R10000
507 select SYS_SUPPORTS_64BIT_KERNEL
508 select SYS_SUPPORTS_BIG_ENDIAN
509 select SYS_SUPPORTS_NUMA
510 select SYS_SUPPORTS_SMP
511 select MIPS_L1_CACHE_SHIFT_7
512 help
513 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
514 workstations. To compile a Linux kernel that runs on these, say Y
515 here.
516
517 config SGI_IP28
518 bool "SGI IP28 (Indigo2 R10k)"
519 select FW_ARC
520 select FW_ARC64
521 select BOOT_ELF64
522 select CEVT_R4K
523 select CSRC_R4K
524 select DEFAULT_SGI_PARTITION
525 select DMA_NONCOHERENT
526 select GENERIC_ISA_DMA_SUPPORT_BROKEN
527 select IRQ_CPU
528 select HW_HAS_EISA
529 select I8253
530 select I8259
531 select SGI_HAS_I8042
532 select SGI_HAS_INDYDOG
533 select SGI_HAS_HAL2
534 select SGI_HAS_SEEQ
535 select SGI_HAS_WD93
536 select SGI_HAS_ZILOG
537 select SWAP_IO_SPACE
538 select SYS_HAS_CPU_R10000
539 #
540 # Disable EARLY_PRINTK for now since it leads to overwritten prom
541 # memory during early boot on some machines.
542 #
543 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
544 # for a more details discussion
545 #
546 # select SYS_HAS_EARLY_PRINTK
547 select SYS_SUPPORTS_64BIT_KERNEL
548 select SYS_SUPPORTS_BIG_ENDIAN
549 help
550 This is the SGI Indigo2 with R10000 processor. To compile a Linux
551 kernel that runs on these, say Y here.
552
553 config SGI_IP32
554 bool "SGI IP32 (O2)"
555 select FW_ARC
556 select FW_ARC32
557 select BOOT_ELF32
558 select CEVT_R4K
559 select CSRC_R4K
560 select DMA_NONCOHERENT
561 select HW_HAS_PCI
562 select IRQ_CPU
563 select R5000_CPU_SCACHE
564 select RM7000_CPU_SCACHE
565 select SYS_HAS_CPU_R5000
566 select SYS_HAS_CPU_R10000 if BROKEN
567 select SYS_HAS_CPU_RM7000
568 select SYS_HAS_CPU_NEVADA
569 select SYS_SUPPORTS_64BIT_KERNEL
570 select SYS_SUPPORTS_BIG_ENDIAN
571 help
572 If you want this kernel to run on SGI O2 workstation, say Y here.
573
574 config SIBYTE_CRHINE
575 bool "Sibyte BCM91120C-CRhine"
576 select BOOT_ELF32
577 select DMA_COHERENT
578 select SIBYTE_BCM1120
579 select SWAP_IO_SPACE
580 select SYS_HAS_CPU_SB1
581 select SYS_SUPPORTS_BIG_ENDIAN
582 select SYS_SUPPORTS_LITTLE_ENDIAN
583
584 config SIBYTE_CARMEL
585 bool "Sibyte BCM91120x-Carmel"
586 select BOOT_ELF32
587 select DMA_COHERENT
588 select SIBYTE_BCM1120
589 select SWAP_IO_SPACE
590 select SYS_HAS_CPU_SB1
591 select SYS_SUPPORTS_BIG_ENDIAN
592 select SYS_SUPPORTS_LITTLE_ENDIAN
593
594 config SIBYTE_CRHONE
595 bool "Sibyte BCM91125C-CRhone"
596 select BOOT_ELF32
597 select DMA_COHERENT
598 select SIBYTE_BCM1125
599 select SWAP_IO_SPACE
600 select SYS_HAS_CPU_SB1
601 select SYS_SUPPORTS_BIG_ENDIAN
602 select SYS_SUPPORTS_HIGHMEM
603 select SYS_SUPPORTS_LITTLE_ENDIAN
604
605 config SIBYTE_RHONE
606 bool "Sibyte BCM91125E-Rhone"
607 select BOOT_ELF32
608 select DMA_COHERENT
609 select SIBYTE_BCM1125H
610 select SWAP_IO_SPACE
611 select SYS_HAS_CPU_SB1
612 select SYS_SUPPORTS_BIG_ENDIAN
613 select SYS_SUPPORTS_LITTLE_ENDIAN
614
615 config SIBYTE_SWARM
616 bool "Sibyte BCM91250A-SWARM"
617 select BOOT_ELF32
618 select DMA_COHERENT
619 select HAVE_PATA_PLATFORM
620 select SIBYTE_SB1250
621 select SWAP_IO_SPACE
622 select SYS_HAS_CPU_SB1
623 select SYS_SUPPORTS_BIG_ENDIAN
624 select SYS_SUPPORTS_HIGHMEM
625 select SYS_SUPPORTS_LITTLE_ENDIAN
626 select ZONE_DMA32 if 64BIT
627
628 config SIBYTE_LITTLESUR
629 bool "Sibyte BCM91250C2-LittleSur"
630 select BOOT_ELF32
631 select DMA_COHERENT
632 select HAVE_PATA_PLATFORM
633 select SIBYTE_SB1250
634 select SWAP_IO_SPACE
635 select SYS_HAS_CPU_SB1
636 select SYS_SUPPORTS_BIG_ENDIAN
637 select SYS_SUPPORTS_HIGHMEM
638 select SYS_SUPPORTS_LITTLE_ENDIAN
639
640 config SIBYTE_SENTOSA
641 bool "Sibyte BCM91250E-Sentosa"
642 select BOOT_ELF32
643 select DMA_COHERENT
644 select SIBYTE_SB1250
645 select SWAP_IO_SPACE
646 select SYS_HAS_CPU_SB1
647 select SYS_SUPPORTS_BIG_ENDIAN
648 select SYS_SUPPORTS_LITTLE_ENDIAN
649
650 config SIBYTE_BIGSUR
651 bool "Sibyte BCM91480B-BigSur"
652 select BOOT_ELF32
653 select DMA_COHERENT
654 select NR_CPUS_DEFAULT_4
655 select SIBYTE_BCM1x80
656 select SWAP_IO_SPACE
657 select SYS_HAS_CPU_SB1
658 select SYS_SUPPORTS_BIG_ENDIAN
659 select SYS_SUPPORTS_HIGHMEM
660 select SYS_SUPPORTS_LITTLE_ENDIAN
661 select ZONE_DMA32 if 64BIT
662
663 config SNI_RM
664 bool "SNI RM200/300/400"
665 select FW_ARC if CPU_LITTLE_ENDIAN
666 select FW_ARC32 if CPU_LITTLE_ENDIAN
667 select FW_SNIPROM if CPU_BIG_ENDIAN
668 select ARCH_MAY_HAVE_PC_FDC
669 select BOOT_ELF32
670 select CEVT_R4K
671 select CSRC_R4K
672 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
673 select DMA_NONCOHERENT
674 select GENERIC_ISA_DMA
675 select HAVE_PCSPKR_PLATFORM
676 select HW_HAS_EISA
677 select HW_HAS_PCI
678 select IRQ_CPU
679 select I8253
680 select I8259
681 select ISA
682 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
683 select SYS_HAS_CPU_R4X00
684 select SYS_HAS_CPU_R5000
685 select SYS_HAS_CPU_R10000
686 select R5000_CPU_SCACHE
687 select SYS_HAS_EARLY_PRINTK
688 select SYS_SUPPORTS_32BIT_KERNEL
689 select SYS_SUPPORTS_64BIT_KERNEL
690 select SYS_SUPPORTS_BIG_ENDIAN
691 select SYS_SUPPORTS_HIGHMEM
692 select SYS_SUPPORTS_LITTLE_ENDIAN
693 help
694 The SNI RM200/300/400 are MIPS-based machines manufactured by
695 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
696 Technology and now in turn merged with Fujitsu. Say Y here to
697 support this machine type.
698
699 config MACH_TX39XX
700 bool "Toshiba TX39 series based machines"
701
702 config MACH_TX49XX
703 bool "Toshiba TX49 series based machines"
704
705 config MIKROTIK_RB532
706 bool "Mikrotik RB532 boards"
707 select CEVT_R4K
708 select CSRC_R4K
709 select DMA_NONCOHERENT
710 select HW_HAS_PCI
711 select IRQ_CPU
712 select SYS_HAS_CPU_MIPS32_R1
713 select SYS_SUPPORTS_32BIT_KERNEL
714 select SYS_SUPPORTS_LITTLE_ENDIAN
715 select SWAP_IO_SPACE
716 select BOOT_RAW
717 select ARCH_REQUIRE_GPIOLIB
718 select MIPS_L1_CACHE_SHIFT_4
719 help
720 Support the Mikrotik(tm) RouterBoard 532 series,
721 based on the IDT RC32434 SoC.
722
723 config CAVIUM_OCTEON_SOC
724 bool "Cavium Networks Octeon SoC based boards"
725 select CEVT_R4K
726 select 64BIT_PHYS_ADDR
727 select DMA_COHERENT
728 select SYS_SUPPORTS_64BIT_KERNEL
729 select SYS_SUPPORTS_BIG_ENDIAN
730 select EDAC_SUPPORT
731 select SYS_SUPPORTS_HOTPLUG_CPU
732 select SYS_HAS_EARLY_PRINTK
733 select SYS_HAS_CPU_CAVIUM_OCTEON
734 select SWAP_IO_SPACE
735 select HW_HAS_PCI
736 select ZONE_DMA32
737 select HOLES_IN_ZONE
738 select ARCH_REQUIRE_GPIOLIB
739 select LIBFDT
740 select USE_OF
741 select ARCH_SPARSEMEM_ENABLE
742 select SYS_SUPPORTS_SMP
743 select NR_CPUS_DEFAULT_16
744 help
745 This option supports all of the Octeon reference boards from Cavium
746 Networks. It builds a kernel that dynamically determines the Octeon
747 CPU type and supports all known board reference implementations.
748 Some of the supported boards are:
749 EBT3000
750 EBH3000
751 EBH3100
752 Thunder
753 Kodama
754 Hikari
755 Say Y here for most Octeon reference boards.
756
757 config NLM_XLR_BOARD
758 bool "Netlogic XLR/XLS based systems"
759 select BOOT_ELF32
760 select NLM_COMMON
761 select SYS_HAS_CPU_XLR
762 select SYS_SUPPORTS_SMP
763 select HW_HAS_PCI
764 select SWAP_IO_SPACE
765 select SYS_SUPPORTS_32BIT_KERNEL
766 select SYS_SUPPORTS_64BIT_KERNEL
767 select 64BIT_PHYS_ADDR
768 select SYS_SUPPORTS_BIG_ENDIAN
769 select SYS_SUPPORTS_HIGHMEM
770 select DMA_COHERENT
771 select NR_CPUS_DEFAULT_32
772 select CEVT_R4K
773 select CSRC_R4K
774 select IRQ_CPU
775 select ZONE_DMA32 if 64BIT
776 select SYNC_R4K
777 select SYS_HAS_EARLY_PRINTK
778 select SYS_SUPPORTS_ZBOOT
779 select SYS_SUPPORTS_ZBOOT_UART16550
780 help
781 Support for systems based on Netlogic XLR and XLS processors.
782 Say Y here if you have a XLR or XLS based board.
783
784 config NLM_XLP_BOARD
785 bool "Netlogic XLP based systems"
786 select BOOT_ELF32
787 select NLM_COMMON
788 select SYS_HAS_CPU_XLP
789 select SYS_SUPPORTS_SMP
790 select HW_HAS_PCI
791 select SYS_SUPPORTS_32BIT_KERNEL
792 select SYS_SUPPORTS_64BIT_KERNEL
793 select 64BIT_PHYS_ADDR
794 select SYS_SUPPORTS_BIG_ENDIAN
795 select SYS_SUPPORTS_LITTLE_ENDIAN
796 select SYS_SUPPORTS_HIGHMEM
797 select DMA_COHERENT
798 select NR_CPUS_DEFAULT_32
799 select CEVT_R4K
800 select CSRC_R4K
801 select IRQ_CPU
802 select ZONE_DMA32 if 64BIT
803 select SYNC_R4K
804 select SYS_HAS_EARLY_PRINTK
805 select USE_OF
806 select SYS_SUPPORTS_ZBOOT
807 select SYS_SUPPORTS_ZBOOT_UART16550
808 help
809 This board is based on Netlogic XLP Processor.
810 Say Y here if you have a XLP based board.
811
812 config MIPS_PARAVIRT
813 bool "Para-Virtualized guest system"
814 select CEVT_R4K
815 select CSRC_R4K
816 select DMA_COHERENT
817 select SYS_SUPPORTS_64BIT_KERNEL
818 select SYS_SUPPORTS_32BIT_KERNEL
819 select SYS_SUPPORTS_BIG_ENDIAN
820 select SYS_SUPPORTS_SMP
821 select NR_CPUS_DEFAULT_4
822 select SYS_HAS_EARLY_PRINTK
823 select SYS_HAS_CPU_MIPS32_R2
824 select SYS_HAS_CPU_MIPS64_R2
825 select SYS_HAS_CPU_CAVIUM_OCTEON
826 select HW_HAS_PCI
827 select SWAP_IO_SPACE
828 help
829 This option supports guest running under ????
830
831 endchoice
832
833 source "arch/mips/alchemy/Kconfig"
834 source "arch/mips/ath79/Kconfig"
835 source "arch/mips/bcm47xx/Kconfig"
836 source "arch/mips/bcm63xx/Kconfig"
837 source "arch/mips/jazz/Kconfig"
838 source "arch/mips/jz4740/Kconfig"
839 source "arch/mips/lantiq/Kconfig"
840 source "arch/mips/lasat/Kconfig"
841 source "arch/mips/pmcs-msp71xx/Kconfig"
842 source "arch/mips/ralink/Kconfig"
843 source "arch/mips/sgi-ip27/Kconfig"
844 source "arch/mips/sibyte/Kconfig"
845 source "arch/mips/txx9/Kconfig"
846 source "arch/mips/vr41xx/Kconfig"
847 source "arch/mips/cavium-octeon/Kconfig"
848 source "arch/mips/loongson/Kconfig"
849 source "arch/mips/loongson1/Kconfig"
850 source "arch/mips/netlogic/Kconfig"
851 source "arch/mips/paravirt/Kconfig"
852
853 endmenu
854
855 config RWSEM_GENERIC_SPINLOCK
856 bool
857 default y
858
859 config RWSEM_XCHGADD_ALGORITHM
860 bool
861
862 config ARCH_HAS_ILOG2_U32
863 bool
864 default n
865
866 config ARCH_HAS_ILOG2_U64
867 bool
868 default n
869
870 config GENERIC_HWEIGHT
871 bool
872 default y
873
874 config GENERIC_CALIBRATE_DELAY
875 bool
876 default y
877
878 config SCHED_OMIT_FRAME_POINTER
879 bool
880 default y
881
882 #
883 # Select some configuration options automatically based on user selections.
884 #
885 config FW_ARC
886 bool
887
888 config ARCH_MAY_HAVE_PC_FDC
889 bool
890
891 config BOOT_RAW
892 bool
893
894 config CEVT_BCM1480
895 bool
896
897 config CEVT_DS1287
898 bool
899
900 config CEVT_GT641XX
901 bool
902
903 config CEVT_R4K
904 bool
905
906 config CEVT_GIC
907 select MIPS_CM
908 bool
909
910 config CEVT_SB1250
911 bool
912
913 config CEVT_TXX9
914 bool
915
916 config CSRC_BCM1480
917 bool
918
919 config CSRC_IOASIC
920 bool
921
922 config CSRC_R4K
923 bool
924
925 config CSRC_GIC
926 select MIPS_CM
927 bool
928
929 config CSRC_SB1250
930 bool
931
932 config GPIO_TXX9
933 select ARCH_REQUIRE_GPIOLIB
934 bool
935
936 config FW_CFE
937 bool
938
939 config ARCH_DMA_ADDR_T_64BIT
940 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
941
942 config DMA_MAYBE_COHERENT
943 select DMA_NONCOHERENT
944 bool
945
946 config DMA_COHERENT
947 bool
948
949 config DMA_NONCOHERENT
950 bool
951 select NEED_DMA_MAP_STATE
952
953 config NEED_DMA_MAP_STATE
954 bool
955
956 config SYS_HAS_EARLY_PRINTK
957 bool
958
959 config HOTPLUG_CPU
960 bool "Support for hot-pluggable CPUs"
961 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
962 help
963 Say Y here to allow turning CPUs off and on. CPUs can be
964 controlled through /sys/devices/system/cpu.
965 (Note: power management support will enable this option
966 automatically on SMP systems. )
967 Say N if you want to disable CPU hotplug.
968
969 config SYS_SUPPORTS_HOTPLUG_CPU
970 bool
971
972 config I8259
973 bool
974
975 config MIPS_BONITO64
976 bool
977
978 config MIPS_MSC
979 bool
980
981 config MIPS_NILE4
982 bool
983
984 config SYNC_R4K
985 bool
986
987 config MIPS_MACHINE
988 def_bool n
989
990 config NO_IOPORT_MAP
991 def_bool n
992
993 config GENERIC_ISA_DMA
994 bool
995 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
996 select ISA_DMA_API
997
998 config GENERIC_ISA_DMA_SUPPORT_BROKEN
999 bool
1000 select GENERIC_ISA_DMA
1001
1002 config ISA_DMA_API
1003 bool
1004
1005 config HOLES_IN_ZONE
1006 bool
1007
1008 #
1009 # Endianness selection. Sufficiently obscure so many users don't know what to
1010 # answer,so we try hard to limit the available choices. Also the use of a
1011 # choice statement should be more obvious to the user.
1012 #
1013 choice
1014 prompt "Endianness selection"
1015 help
1016 Some MIPS machines can be configured for either little or big endian
1017 byte order. These modes require different kernels and a different
1018 Linux distribution. In general there is one preferred byteorder for a
1019 particular system but some systems are just as commonly used in the
1020 one or the other endianness.
1021
1022 config CPU_BIG_ENDIAN
1023 bool "Big endian"
1024 depends on SYS_SUPPORTS_BIG_ENDIAN
1025
1026 config CPU_LITTLE_ENDIAN
1027 bool "Little endian"
1028 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1029
1030 endchoice
1031
1032 config EXPORT_UASM
1033 bool
1034
1035 config SYS_SUPPORTS_APM_EMULATION
1036 bool
1037
1038 config SYS_SUPPORTS_BIG_ENDIAN
1039 bool
1040
1041 config SYS_SUPPORTS_LITTLE_ENDIAN
1042 bool
1043
1044 config SYS_SUPPORTS_HUGETLBFS
1045 bool
1046 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1047 default y
1048
1049 config MIPS_HUGE_TLB_SUPPORT
1050 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1051
1052 config IRQ_CPU
1053 bool
1054
1055 config IRQ_CPU_RM7K
1056 bool
1057
1058 config IRQ_MSP_SLP
1059 bool
1060
1061 config IRQ_MSP_CIC
1062 bool
1063
1064 config IRQ_TXX9
1065 bool
1066
1067 config IRQ_GT641XX
1068 bool
1069
1070 config IRQ_GIC
1071 select MIPS_CM
1072 bool
1073
1074 config PCI_GT64XXX_PCI0
1075 bool
1076
1077 config NO_EXCEPT_FILL
1078 bool
1079
1080 config SOC_EMMA2RH
1081 bool
1082 select CEVT_R4K
1083 select CSRC_R4K
1084 select DMA_NONCOHERENT
1085 select IRQ_CPU
1086 select SWAP_IO_SPACE
1087 select SYS_HAS_CPU_R5500
1088 select SYS_SUPPORTS_32BIT_KERNEL
1089 select SYS_SUPPORTS_64BIT_KERNEL
1090 select SYS_SUPPORTS_BIG_ENDIAN
1091
1092 config SOC_PNX833X
1093 bool
1094 select CEVT_R4K
1095 select CSRC_R4K
1096 select IRQ_CPU
1097 select DMA_NONCOHERENT
1098 select SYS_HAS_CPU_MIPS32_R2
1099 select SYS_SUPPORTS_32BIT_KERNEL
1100 select SYS_SUPPORTS_LITTLE_ENDIAN
1101 select SYS_SUPPORTS_BIG_ENDIAN
1102 select SYS_SUPPORTS_MIPS16
1103 select CPU_MIPSR2_IRQ_VI
1104
1105 config SOC_PNX8335
1106 bool
1107 select SOC_PNX833X
1108
1109 config SWAP_IO_SPACE
1110 bool
1111
1112 config SGI_HAS_INDYDOG
1113 bool
1114
1115 config SGI_HAS_HAL2
1116 bool
1117
1118 config SGI_HAS_SEEQ
1119 bool
1120
1121 config SGI_HAS_WD93
1122 bool
1123
1124 config SGI_HAS_ZILOG
1125 bool
1126
1127 config SGI_HAS_I8042
1128 bool
1129
1130 config DEFAULT_SGI_PARTITION
1131 bool
1132
1133 config FW_ARC32
1134 bool
1135
1136 config FW_SNIPROM
1137 bool
1138
1139 config BOOT_ELF32
1140 bool
1141
1142 config MIPS_L1_CACHE_SHIFT_4
1143 bool
1144
1145 config MIPS_L1_CACHE_SHIFT_5
1146 bool
1147
1148 config MIPS_L1_CACHE_SHIFT_6
1149 bool
1150
1151 config MIPS_L1_CACHE_SHIFT_7
1152 bool
1153
1154 config MIPS_L1_CACHE_SHIFT
1155 int
1156 default "4" if MIPS_L1_CACHE_SHIFT_4
1157 default "5" if MIPS_L1_CACHE_SHIFT_5
1158 default "6" if MIPS_L1_CACHE_SHIFT_6
1159 default "7" if MIPS_L1_CACHE_SHIFT_7
1160 default "5"
1161
1162 config HAVE_STD_PC_SERIAL_PORT
1163 bool
1164
1165 config ARC_CONSOLE
1166 bool "ARC console support"
1167 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1168
1169 config ARC_MEMORY
1170 bool
1171 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1172 default y
1173
1174 config ARC_PROMLIB
1175 bool
1176 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1177 default y
1178
1179 config FW_ARC64
1180 bool
1181
1182 config BOOT_ELF64
1183 bool
1184
1185 menu "CPU selection"
1186
1187 choice
1188 prompt "CPU type"
1189 default CPU_R4X00
1190
1191 config CPU_LOONGSON3
1192 bool "Loongson 3 CPU"
1193 depends on SYS_HAS_CPU_LOONGSON3
1194 select CPU_SUPPORTS_64BIT_KERNEL
1195 select CPU_SUPPORTS_HIGHMEM
1196 select CPU_SUPPORTS_HUGEPAGES
1197 select WEAK_ORDERING
1198 select WEAK_REORDERING_BEYOND_LLSC
1199 help
1200 The Loongson 3 processor implements the MIPS64R2 instruction
1201 set with many extensions.
1202
1203 config CPU_LOONGSON2E
1204 bool "Loongson 2E"
1205 depends on SYS_HAS_CPU_LOONGSON2E
1206 select CPU_LOONGSON2
1207 help
1208 The Loongson 2E processor implements the MIPS III instruction set
1209 with many extensions.
1210
1211 It has an internal FPGA northbridge, which is compatible to
1212 bonito64.
1213
1214 config CPU_LOONGSON2F
1215 bool "Loongson 2F"
1216 depends on SYS_HAS_CPU_LOONGSON2F
1217 select CPU_LOONGSON2
1218 select ARCH_REQUIRE_GPIOLIB
1219 help
1220 The Loongson 2F processor implements the MIPS III instruction set
1221 with many extensions.
1222
1223 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1224 have a similar programming interface with FPGA northbridge used in
1225 Loongson2E.
1226
1227 config CPU_LOONGSON1B
1228 bool "Loongson 1B"
1229 depends on SYS_HAS_CPU_LOONGSON1B
1230 select CPU_LOONGSON1
1231 help
1232 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1233 release 2 instruction set.
1234
1235 config CPU_MIPS32_R1
1236 bool "MIPS32 Release 1"
1237 depends on SYS_HAS_CPU_MIPS32_R1
1238 select CPU_HAS_PREFETCH
1239 select CPU_SUPPORTS_32BIT_KERNEL
1240 select CPU_SUPPORTS_HIGHMEM
1241 help
1242 Choose this option to build a kernel for release 1 or later of the
1243 MIPS32 architecture. Most modern embedded systems with a 32-bit
1244 MIPS processor are based on a MIPS32 processor. If you know the
1245 specific type of processor in your system, choose those that one
1246 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1247 Release 2 of the MIPS32 architecture is available since several
1248 years so chances are you even have a MIPS32 Release 2 processor
1249 in which case you should choose CPU_MIPS32_R2 instead for better
1250 performance.
1251
1252 config CPU_MIPS32_R2
1253 bool "MIPS32 Release 2"
1254 depends on SYS_HAS_CPU_MIPS32_R2
1255 select CPU_HAS_PREFETCH
1256 select CPU_SUPPORTS_32BIT_KERNEL
1257 select CPU_SUPPORTS_HIGHMEM
1258 select CPU_SUPPORTS_MSA
1259 select HAVE_KVM
1260 help
1261 Choose this option to build a kernel for release 2 or later of the
1262 MIPS32 architecture. Most modern embedded systems with a 32-bit
1263 MIPS processor are based on a MIPS32 processor. If you know the
1264 specific type of processor in your system, choose those that one
1265 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1266
1267 config CPU_MIPS64_R1
1268 bool "MIPS64 Release 1"
1269 depends on SYS_HAS_CPU_MIPS64_R1
1270 select CPU_HAS_PREFETCH
1271 select CPU_SUPPORTS_32BIT_KERNEL
1272 select CPU_SUPPORTS_64BIT_KERNEL
1273 select CPU_SUPPORTS_HIGHMEM
1274 select CPU_SUPPORTS_HUGEPAGES
1275 help
1276 Choose this option to build a kernel for release 1 or later of the
1277 MIPS64 architecture. Many modern embedded systems with a 64-bit
1278 MIPS processor are based on a MIPS64 processor. If you know the
1279 specific type of processor in your system, choose those that one
1280 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1281 Release 2 of the MIPS64 architecture is available since several
1282 years so chances are you even have a MIPS64 Release 2 processor
1283 in which case you should choose CPU_MIPS64_R2 instead for better
1284 performance.
1285
1286 config CPU_MIPS64_R2
1287 bool "MIPS64 Release 2"
1288 depends on SYS_HAS_CPU_MIPS64_R2
1289 select CPU_HAS_PREFETCH
1290 select CPU_SUPPORTS_32BIT_KERNEL
1291 select CPU_SUPPORTS_64BIT_KERNEL
1292 select CPU_SUPPORTS_HIGHMEM
1293 select CPU_SUPPORTS_HUGEPAGES
1294 select CPU_SUPPORTS_MSA
1295 help
1296 Choose this option to build a kernel for release 2 or later of the
1297 MIPS64 architecture. Many modern embedded systems with a 64-bit
1298 MIPS processor are based on a MIPS64 processor. If you know the
1299 specific type of processor in your system, choose those that one
1300 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1301
1302 config CPU_R3000
1303 bool "R3000"
1304 depends on SYS_HAS_CPU_R3000
1305 select CPU_HAS_WB
1306 select CPU_SUPPORTS_32BIT_KERNEL
1307 select CPU_SUPPORTS_HIGHMEM
1308 help
1309 Please make sure to pick the right CPU type. Linux/MIPS is not
1310 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1311 *not* work on R4000 machines and vice versa. However, since most
1312 of the supported machines have an R4000 (or similar) CPU, R4x00
1313 might be a safe bet. If the resulting kernel does not work,
1314 try to recompile with R3000.
1315
1316 config CPU_TX39XX
1317 bool "R39XX"
1318 depends on SYS_HAS_CPU_TX39XX
1319 select CPU_SUPPORTS_32BIT_KERNEL
1320
1321 config CPU_VR41XX
1322 bool "R41xx"
1323 depends on SYS_HAS_CPU_VR41XX
1324 select CPU_SUPPORTS_32BIT_KERNEL
1325 select CPU_SUPPORTS_64BIT_KERNEL
1326 help
1327 The options selects support for the NEC VR4100 series of processors.
1328 Only choose this option if you have one of these processors as a
1329 kernel built with this option will not run on any other type of
1330 processor or vice versa.
1331
1332 config CPU_R4300
1333 bool "R4300"
1334 depends on SYS_HAS_CPU_R4300
1335 select CPU_SUPPORTS_32BIT_KERNEL
1336 select CPU_SUPPORTS_64BIT_KERNEL
1337 help
1338 MIPS Technologies R4300-series processors.
1339
1340 config CPU_R4X00
1341 bool "R4x00"
1342 depends on SYS_HAS_CPU_R4X00
1343 select CPU_SUPPORTS_32BIT_KERNEL
1344 select CPU_SUPPORTS_64BIT_KERNEL
1345 select CPU_SUPPORTS_HUGEPAGES
1346 help
1347 MIPS Technologies R4000-series processors other than 4300, including
1348 the R4000, R4400, R4600, and 4700.
1349
1350 config CPU_TX49XX
1351 bool "R49XX"
1352 depends on SYS_HAS_CPU_TX49XX
1353 select CPU_HAS_PREFETCH
1354 select CPU_SUPPORTS_32BIT_KERNEL
1355 select CPU_SUPPORTS_64BIT_KERNEL
1356 select CPU_SUPPORTS_HUGEPAGES
1357
1358 config CPU_R5000
1359 bool "R5000"
1360 depends on SYS_HAS_CPU_R5000
1361 select CPU_SUPPORTS_32BIT_KERNEL
1362 select CPU_SUPPORTS_64BIT_KERNEL
1363 select CPU_SUPPORTS_HUGEPAGES
1364 help
1365 MIPS Technologies R5000-series processors other than the Nevada.
1366
1367 config CPU_R5432
1368 bool "R5432"
1369 depends on SYS_HAS_CPU_R5432
1370 select CPU_SUPPORTS_32BIT_KERNEL
1371 select CPU_SUPPORTS_64BIT_KERNEL
1372 select CPU_SUPPORTS_HUGEPAGES
1373
1374 config CPU_R5500
1375 bool "R5500"
1376 depends on SYS_HAS_CPU_R5500
1377 select CPU_SUPPORTS_32BIT_KERNEL
1378 select CPU_SUPPORTS_64BIT_KERNEL
1379 select CPU_SUPPORTS_HUGEPAGES
1380 help
1381 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1382 instruction set.
1383
1384 config CPU_R6000
1385 bool "R6000"
1386 depends on SYS_HAS_CPU_R6000
1387 select CPU_SUPPORTS_32BIT_KERNEL
1388 help
1389 MIPS Technologies R6000 and R6000A series processors. Note these
1390 processors are extremely rare and the support for them is incomplete.
1391
1392 config CPU_NEVADA
1393 bool "RM52xx"
1394 depends on SYS_HAS_CPU_NEVADA
1395 select CPU_SUPPORTS_32BIT_KERNEL
1396 select CPU_SUPPORTS_64BIT_KERNEL
1397 select CPU_SUPPORTS_HUGEPAGES
1398 help
1399 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1400
1401 config CPU_R8000
1402 bool "R8000"
1403 depends on SYS_HAS_CPU_R8000
1404 select CPU_HAS_PREFETCH
1405 select CPU_SUPPORTS_64BIT_KERNEL
1406 help
1407 MIPS Technologies R8000 processors. Note these processors are
1408 uncommon and the support for them is incomplete.
1409
1410 config CPU_R10000
1411 bool "R10000"
1412 depends on SYS_HAS_CPU_R10000
1413 select CPU_HAS_PREFETCH
1414 select CPU_SUPPORTS_32BIT_KERNEL
1415 select CPU_SUPPORTS_64BIT_KERNEL
1416 select CPU_SUPPORTS_HIGHMEM
1417 select CPU_SUPPORTS_HUGEPAGES
1418 help
1419 MIPS Technologies R10000-series processors.
1420
1421 config CPU_RM7000
1422 bool "RM7000"
1423 depends on SYS_HAS_CPU_RM7000
1424 select CPU_HAS_PREFETCH
1425 select CPU_SUPPORTS_32BIT_KERNEL
1426 select CPU_SUPPORTS_64BIT_KERNEL
1427 select CPU_SUPPORTS_HIGHMEM
1428 select CPU_SUPPORTS_HUGEPAGES
1429
1430 config CPU_SB1
1431 bool "SB1"
1432 depends on SYS_HAS_CPU_SB1
1433 select CPU_SUPPORTS_32BIT_KERNEL
1434 select CPU_SUPPORTS_64BIT_KERNEL
1435 select CPU_SUPPORTS_HIGHMEM
1436 select CPU_SUPPORTS_HUGEPAGES
1437 select WEAK_ORDERING
1438
1439 config CPU_CAVIUM_OCTEON
1440 bool "Cavium Octeon processor"
1441 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1442 select CPU_HAS_PREFETCH
1443 select CPU_SUPPORTS_64BIT_KERNEL
1444 select WEAK_ORDERING
1445 select CPU_SUPPORTS_HIGHMEM
1446 select CPU_SUPPORTS_HUGEPAGES
1447 select USB_EHCI_BIG_ENDIAN_MMIO
1448 select MIPS_L1_CACHE_SHIFT_7
1449 help
1450 The Cavium Octeon processor is a highly integrated chip containing
1451 many ethernet hardware widgets for networking tasks. The processor
1452 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1453 Full details can be found at http://www.caviumnetworks.com.
1454
1455 config CPU_BMIPS
1456 bool "Broadcom BMIPS"
1457 depends on SYS_HAS_CPU_BMIPS
1458 select CPU_MIPS32
1459 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1460 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1461 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1462 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1463 select CPU_SUPPORTS_32BIT_KERNEL
1464 select DMA_NONCOHERENT
1465 select IRQ_CPU
1466 select SWAP_IO_SPACE
1467 select WEAK_ORDERING
1468 select CPU_SUPPORTS_HIGHMEM
1469 select CPU_HAS_PREFETCH
1470 help
1471 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1472
1473 config CPU_XLR
1474 bool "Netlogic XLR SoC"
1475 depends on SYS_HAS_CPU_XLR
1476 select CPU_SUPPORTS_32BIT_KERNEL
1477 select CPU_SUPPORTS_64BIT_KERNEL
1478 select CPU_SUPPORTS_HIGHMEM
1479 select CPU_SUPPORTS_HUGEPAGES
1480 select WEAK_ORDERING
1481 select WEAK_REORDERING_BEYOND_LLSC
1482 help
1483 Netlogic Microsystems XLR/XLS processors.
1484
1485 config CPU_XLP
1486 bool "Netlogic XLP SoC"
1487 depends on SYS_HAS_CPU_XLP
1488 select CPU_SUPPORTS_32BIT_KERNEL
1489 select CPU_SUPPORTS_64BIT_KERNEL
1490 select CPU_SUPPORTS_HIGHMEM
1491 select WEAK_ORDERING
1492 select WEAK_REORDERING_BEYOND_LLSC
1493 select CPU_HAS_PREFETCH
1494 select CPU_MIPSR2
1495 help
1496 Netlogic Microsystems XLP processors.
1497 endchoice
1498
1499 config CPU_MIPS32_3_5_FEATURES
1500 bool "MIPS32 Release 3.5 Features"
1501 depends on SYS_HAS_CPU_MIPS32_R3_5
1502 depends on CPU_MIPS32_R2
1503 help
1504 Choose this option to build a kernel for release 2 or later of the
1505 MIPS32 architecture including features from the 3.5 release such as
1506 support for Enhanced Virtual Addressing (EVA).
1507
1508 config CPU_MIPS32_3_5_EVA
1509 bool "Enhanced Virtual Addressing (EVA)"
1510 depends on CPU_MIPS32_3_5_FEATURES
1511 select EVA
1512 default y
1513 help
1514 Choose this option if you want to enable the Enhanced Virtual
1515 Addressing (EVA) on your MIPS32 core (such as proAptiv).
1516 One of its primary benefits is an increase in the maximum size
1517 of lowmem (up to 3GB). If unsure, say 'N' here.
1518
1519 if CPU_LOONGSON2F
1520 config CPU_NOP_WORKAROUNDS
1521 bool
1522
1523 config CPU_JUMP_WORKAROUNDS
1524 bool
1525
1526 config CPU_LOONGSON2F_WORKAROUNDS
1527 bool "Loongson 2F Workarounds"
1528 default y
1529 select CPU_NOP_WORKAROUNDS
1530 select CPU_JUMP_WORKAROUNDS
1531 help
1532 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1533 require workarounds. Without workarounds the system may hang
1534 unexpectedly. For more information please refer to the gas
1535 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1536
1537 Loongson 2F03 and later have fixed these issues and no workarounds
1538 are needed. The workarounds have no significant side effect on them
1539 but may decrease the performance of the system so this option should
1540 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1541 systems.
1542
1543 If unsure, please say Y.
1544 endif # CPU_LOONGSON2F
1545
1546 config SYS_SUPPORTS_ZBOOT
1547 bool
1548 select HAVE_KERNEL_GZIP
1549 select HAVE_KERNEL_BZIP2
1550 select HAVE_KERNEL_LZ4
1551 select HAVE_KERNEL_LZMA
1552 select HAVE_KERNEL_LZO
1553 select HAVE_KERNEL_XZ
1554
1555 config SYS_SUPPORTS_ZBOOT_UART16550
1556 bool
1557 select SYS_SUPPORTS_ZBOOT
1558
1559 config CPU_LOONGSON2
1560 bool
1561 select CPU_SUPPORTS_32BIT_KERNEL
1562 select CPU_SUPPORTS_64BIT_KERNEL
1563 select CPU_SUPPORTS_HIGHMEM
1564 select CPU_SUPPORTS_HUGEPAGES
1565
1566 config CPU_LOONGSON1
1567 bool
1568 select CPU_MIPS32
1569 select CPU_MIPSR2
1570 select CPU_HAS_PREFETCH
1571 select CPU_SUPPORTS_32BIT_KERNEL
1572 select CPU_SUPPORTS_HIGHMEM
1573
1574 config CPU_BMIPS32_3300
1575 select SMP_UP if SMP
1576 bool
1577
1578 config CPU_BMIPS4350
1579 bool
1580 select SYS_SUPPORTS_SMP
1581 select SYS_SUPPORTS_HOTPLUG_CPU
1582
1583 config CPU_BMIPS4380
1584 bool
1585 select SYS_SUPPORTS_SMP
1586 select SYS_SUPPORTS_HOTPLUG_CPU
1587
1588 config CPU_BMIPS5000
1589 bool
1590 select MIPS_CPU_SCACHE
1591 select SYS_SUPPORTS_SMP
1592 select SYS_SUPPORTS_HOTPLUG_CPU
1593
1594 config SYS_HAS_CPU_LOONGSON3
1595 bool
1596 select CPU_SUPPORTS_CPUFREQ
1597
1598 config SYS_HAS_CPU_LOONGSON2E
1599 bool
1600
1601 config SYS_HAS_CPU_LOONGSON2F
1602 bool
1603 select CPU_SUPPORTS_CPUFREQ
1604 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1605 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1606
1607 config SYS_HAS_CPU_LOONGSON1B
1608 bool
1609
1610 config SYS_HAS_CPU_MIPS32_R1
1611 bool
1612
1613 config SYS_HAS_CPU_MIPS32_R2
1614 bool
1615
1616 config SYS_HAS_CPU_MIPS32_R3_5
1617 bool
1618
1619 config SYS_HAS_CPU_MIPS64_R1
1620 bool
1621
1622 config SYS_HAS_CPU_MIPS64_R2
1623 bool
1624
1625 config SYS_HAS_CPU_R3000
1626 bool
1627
1628 config SYS_HAS_CPU_TX39XX
1629 bool
1630
1631 config SYS_HAS_CPU_VR41XX
1632 bool
1633
1634 config SYS_HAS_CPU_R4300
1635 bool
1636
1637 config SYS_HAS_CPU_R4X00
1638 bool
1639
1640 config SYS_HAS_CPU_TX49XX
1641 bool
1642
1643 config SYS_HAS_CPU_R5000
1644 bool
1645
1646 config SYS_HAS_CPU_R5432
1647 bool
1648
1649 config SYS_HAS_CPU_R5500
1650 bool
1651
1652 config SYS_HAS_CPU_R6000
1653 bool
1654
1655 config SYS_HAS_CPU_NEVADA
1656 bool
1657
1658 config SYS_HAS_CPU_R8000
1659 bool
1660
1661 config SYS_HAS_CPU_R10000
1662 bool
1663
1664 config SYS_HAS_CPU_RM7000
1665 bool
1666
1667 config SYS_HAS_CPU_SB1
1668 bool
1669
1670 config SYS_HAS_CPU_CAVIUM_OCTEON
1671 bool
1672
1673 config SYS_HAS_CPU_BMIPS
1674 bool
1675
1676 config SYS_HAS_CPU_BMIPS32_3300
1677 bool
1678 select SYS_HAS_CPU_BMIPS
1679
1680 config SYS_HAS_CPU_BMIPS4350
1681 bool
1682 select SYS_HAS_CPU_BMIPS
1683
1684 config SYS_HAS_CPU_BMIPS4380
1685 bool
1686 select SYS_HAS_CPU_BMIPS
1687
1688 config SYS_HAS_CPU_BMIPS5000
1689 bool
1690 select SYS_HAS_CPU_BMIPS
1691
1692 config SYS_HAS_CPU_XLR
1693 bool
1694
1695 config SYS_HAS_CPU_XLP
1696 bool
1697
1698 config MIPS_MALTA_PM
1699 depends on MIPS_MALTA
1700 depends on PCI
1701 bool
1702 default y
1703
1704 #
1705 # CPU may reorder R->R, R->W, W->R, W->W
1706 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1707 #
1708 config WEAK_ORDERING
1709 bool
1710
1711 #
1712 # CPU may reorder reads and writes beyond LL/SC
1713 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1714 #
1715 config WEAK_REORDERING_BEYOND_LLSC
1716 bool
1717 endmenu
1718
1719 #
1720 # These two indicate any level of the MIPS32 and MIPS64 architecture
1721 #
1722 config CPU_MIPS32
1723 bool
1724 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1725
1726 config CPU_MIPS64
1727 bool
1728 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1729
1730 #
1731 # These two indicate the revision of the architecture, either Release 1 or Release 2
1732 #
1733 config CPU_MIPSR1
1734 bool
1735 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1736
1737 config CPU_MIPSR2
1738 bool
1739 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1740
1741 config EVA
1742 bool
1743
1744 config SYS_SUPPORTS_32BIT_KERNEL
1745 bool
1746 config SYS_SUPPORTS_64BIT_KERNEL
1747 bool
1748 config CPU_SUPPORTS_32BIT_KERNEL
1749 bool
1750 config CPU_SUPPORTS_64BIT_KERNEL
1751 bool
1752 config CPU_SUPPORTS_CPUFREQ
1753 bool
1754 config CPU_SUPPORTS_ADDRWINCFG
1755 bool
1756 config CPU_SUPPORTS_HUGEPAGES
1757 bool
1758 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1759 bool
1760 config MIPS_PGD_C0_CONTEXT
1761 bool
1762 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1763
1764 #
1765 # Set to y for ptrace access to watch registers.
1766 #
1767 config HARDWARE_WATCHPOINTS
1768 bool
1769 default y if CPU_MIPSR1 || CPU_MIPSR2
1770
1771 menu "Kernel type"
1772
1773 choice
1774 prompt "Kernel code model"
1775 help
1776 You should only select this option if you have a workload that
1777 actually benefits from 64-bit processing or if your machine has
1778 large memory. You will only be presented a single option in this
1779 menu if your system does not support both 32-bit and 64-bit kernels.
1780
1781 config 32BIT
1782 bool "32-bit kernel"
1783 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1784 select TRAD_SIGNALS
1785 help
1786 Select this option if you want to build a 32-bit kernel.
1787 config 64BIT
1788 bool "64-bit kernel"
1789 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1790 help
1791 Select this option if you want to build a 64-bit kernel.
1792
1793 endchoice
1794
1795 config KVM_GUEST
1796 bool "KVM Guest Kernel"
1797 depends on BROKEN_ON_SMP
1798 help
1799 Select this option if building a guest kernel for KVM (Trap & Emulate) mode
1800
1801 config KVM_GUEST_TIMER_FREQ
1802 int "Count/Compare Timer Frequency (MHz)"
1803 depends on KVM_GUEST
1804 default 100
1805 help
1806 Set this to non-zero if building a guest kernel for KVM to skip RTC
1807 emulation when determining guest CPU Frequency. Instead, the guest's
1808 timer frequency is specified directly.
1809
1810 choice
1811 prompt "Kernel page size"
1812 default PAGE_SIZE_4KB
1813
1814 config PAGE_SIZE_4KB
1815 bool "4kB"
1816 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
1817 help
1818 This option select the standard 4kB Linux page size. On some
1819 R3000-family processors this is the only available page size. Using
1820 4kB page size will minimize memory consumption and is therefore
1821 recommended for low memory systems.
1822
1823 config PAGE_SIZE_8KB
1824 bool "8kB"
1825 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
1826 help
1827 Using 8kB page size will result in higher performance kernel at
1828 the price of higher memory consumption. This option is available
1829 only on R8000 and cnMIPS processors. Note that you will need a
1830 suitable Linux distribution to support this.
1831
1832 config PAGE_SIZE_16KB
1833 bool "16kB"
1834 depends on !CPU_R3000 && !CPU_TX39XX
1835 help
1836 Using 16kB page size will result in higher performance kernel at
1837 the price of higher memory consumption. This option is available on
1838 all non-R3000 family processors. Note that you will need a suitable
1839 Linux distribution to support this.
1840
1841 config PAGE_SIZE_32KB
1842 bool "32kB"
1843 depends on CPU_CAVIUM_OCTEON
1844 help
1845 Using 32kB page size will result in higher performance kernel at
1846 the price of higher memory consumption. This option is available
1847 only on cnMIPS cores. Note that you will need a suitable Linux
1848 distribution to support this.
1849
1850 config PAGE_SIZE_64KB
1851 bool "64kB"
1852 depends on !CPU_R3000 && !CPU_TX39XX
1853 help
1854 Using 64kB page size will result in higher performance kernel at
1855 the price of higher memory consumption. This option is available on
1856 all non-R3000 family processor. Not that at the time of this
1857 writing this option is still high experimental.
1858
1859 endchoice
1860
1861 config FORCE_MAX_ZONEORDER
1862 int "Maximum zone order"
1863 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
1864 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
1865 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
1866 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
1867 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
1868 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
1869 range 11 64
1870 default "11"
1871 help
1872 The kernel memory allocator divides physically contiguous memory
1873 blocks into "zones", where each zone is a power of two number of
1874 pages. This option selects the largest power of two that the kernel
1875 keeps in the memory allocator. If you need to allocate very large
1876 blocks of physically contiguous memory, then you may need to
1877 increase this value.
1878
1879 This config option is actually maximum order plus one. For example,
1880 a value of 11 means that the largest free memory block is 2^10 pages.
1881
1882 The page size is not necessarily 4KB. Keep this in mind
1883 when choosing a value for this option.
1884
1885 config CEVT_GIC
1886 bool "Use GIC global counter for clock events"
1887 depends on IRQ_GIC && !MIPS_SEAD3
1888 help
1889 Use the GIC global counter for the clock events. The R4K clock
1890 event driver is always present, so if the platform ends up not
1891 detecting a GIC, it will fall back to the R4K timer for the
1892 generation of clock events.
1893
1894 config BOARD_SCACHE
1895 bool
1896
1897 config IP22_CPU_SCACHE
1898 bool
1899 select BOARD_SCACHE
1900
1901 #
1902 # Support for a MIPS32 / MIPS64 style S-caches
1903 #
1904 config MIPS_CPU_SCACHE
1905 bool
1906 select BOARD_SCACHE
1907 select MIPS_L1_CACHE_SHIFT_6
1908
1909 config R5000_CPU_SCACHE
1910 bool
1911 select BOARD_SCACHE
1912
1913 config RM7000_CPU_SCACHE
1914 bool
1915 select BOARD_SCACHE
1916
1917 config SIBYTE_DMA_PAGEOPS
1918 bool "Use DMA to clear/copy pages"
1919 depends on CPU_SB1
1920 help
1921 Instead of using the CPU to zero and copy pages, use a Data Mover
1922 channel. These DMA channels are otherwise unused by the standard
1923 SiByte Linux port. Seems to give a small performance benefit.
1924
1925 config CPU_HAS_PREFETCH
1926 bool
1927
1928 config CPU_GENERIC_DUMP_TLB
1929 bool
1930 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1931
1932 config CPU_R4K_FPU
1933 bool
1934 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1935
1936 config CPU_R4K_CACHE_TLB
1937 bool
1938 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1939
1940 config MIPS_MT_SMP
1941 bool "MIPS MT SMP support (1 TC on each available VPE)"
1942 depends on SYS_SUPPORTS_MULTITHREADING
1943 select CPU_MIPSR2_IRQ_VI
1944 select CPU_MIPSR2_IRQ_EI
1945 select SYNC_R4K
1946 select MIPS_GIC_IPI
1947 select MIPS_MT
1948 select SMP
1949 select SMP_UP
1950 select SYS_SUPPORTS_SMP
1951 select SYS_SUPPORTS_SCHED_SMT
1952 select MIPS_PERF_SHARED_TC_COUNTERS
1953 help
1954 This is a kernel model which is known as SMVP. This is supported
1955 on cores with the MT ASE and uses the available VPEs to implement
1956 virtual processors which supports SMP. This is equivalent to the
1957 Intel Hyperthreading feature. For further information go to
1958 <http://www.imgtec.com/mips/mips-multithreading.asp>.
1959
1960 config MIPS_MT
1961 bool
1962
1963 config SCHED_SMT
1964 bool "SMT (multithreading) scheduler support"
1965 depends on SYS_SUPPORTS_SCHED_SMT
1966 default n
1967 help
1968 SMT scheduler support improves the CPU scheduler's decision making
1969 when dealing with MIPS MT enabled cores at a cost of slightly
1970 increased overhead in some places. If unsure say N here.
1971
1972 config SYS_SUPPORTS_SCHED_SMT
1973 bool
1974
1975 config SYS_SUPPORTS_MULTITHREADING
1976 bool
1977
1978 config MIPS_MT_FPAFF
1979 bool "Dynamic FPU affinity for FP-intensive threads"
1980 default y
1981 depends on MIPS_MT_SMP
1982
1983 config MIPS_VPE_LOADER
1984 bool "VPE loader support."
1985 depends on SYS_SUPPORTS_MULTITHREADING && MODULES
1986 select CPU_MIPSR2_IRQ_VI
1987 select CPU_MIPSR2_IRQ_EI
1988 select MIPS_MT
1989 help
1990 Includes a loader for loading an elf relocatable object
1991 onto another VPE and running it.
1992
1993 config MIPS_VPE_LOADER_CMP
1994 bool
1995 default "y"
1996 depends on MIPS_VPE_LOADER && MIPS_CMP
1997
1998 config MIPS_VPE_LOADER_MT
1999 bool
2000 default "y"
2001 depends on MIPS_VPE_LOADER && !MIPS_CMP
2002
2003 config MIPS_VPE_LOADER_TOM
2004 bool "Load VPE program into memory hidden from linux"
2005 depends on MIPS_VPE_LOADER
2006 default y
2007 help
2008 The loader can use memory that is present but has been hidden from
2009 Linux using the kernel command line option "mem=xxMB". It's up to
2010 you to ensure the amount you put in the option and the space your
2011 program requires is less or equal to the amount physically present.
2012
2013 config MIPS_VPE_APSP_API
2014 bool "Enable support for AP/SP API (RTLX)"
2015 depends on MIPS_VPE_LOADER
2016 help
2017
2018 config MIPS_VPE_APSP_API_CMP
2019 bool
2020 default "y"
2021 depends on MIPS_VPE_APSP_API && MIPS_CMP
2022
2023 config MIPS_VPE_APSP_API_MT
2024 bool
2025 default "y"
2026 depends on MIPS_VPE_APSP_API && !MIPS_CMP
2027
2028 config MIPS_CMP
2029 bool "MIPS CMP framework support (DEPRECATED)"
2030 depends on SYS_SUPPORTS_MIPS_CMP
2031 select MIPS_GIC_IPI
2032 select SYNC_R4K
2033 select WEAK_ORDERING
2034 default n
2035 help
2036 Select this if you are using a bootloader which implements the "CMP
2037 framework" protocol (ie. YAMON) and want your kernel to make use of
2038 its ability to start secondary CPUs.
2039
2040 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2041 instead of this.
2042
2043 config MIPS_CPS
2044 bool "MIPS Coherent Processing System support"
2045 depends on SYS_SUPPORTS_MIPS_CPS
2046 select MIPS_CM
2047 select MIPS_CPC
2048 select MIPS_CPS_PM if HOTPLUG_CPU
2049 select MIPS_GIC_IPI
2050 select SMP
2051 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2052 select SYS_SUPPORTS_HOTPLUG_CPU
2053 select SYS_SUPPORTS_SMP
2054 select WEAK_ORDERING
2055 help
2056 Select this if you wish to run an SMP kernel across multiple cores
2057 within a MIPS Coherent Processing System. When this option is
2058 enabled the kernel will probe for other cores and boot them with
2059 no external assistance. It is safe to enable this when hardware
2060 support is unavailable.
2061
2062 config MIPS_CPS_PM
2063 select MIPS_CPC
2064 bool
2065
2066 config MIPS_GIC_IPI
2067 bool
2068
2069 config MIPS_CM
2070 bool
2071
2072 config MIPS_CPC
2073 bool
2074
2075 config SB1_PASS_1_WORKAROUNDS
2076 bool
2077 depends on CPU_SB1_PASS_1
2078 default y
2079
2080 config SB1_PASS_2_WORKAROUNDS
2081 bool
2082 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2083 default y
2084
2085 config SB1_PASS_2_1_WORKAROUNDS
2086 bool
2087 depends on CPU_SB1 && CPU_SB1_PASS_2
2088 default y
2089
2090
2091 config 64BIT_PHYS_ADDR
2092 bool
2093
2094 config ARCH_PHYS_ADDR_T_64BIT
2095 def_bool 64BIT_PHYS_ADDR
2096
2097 config CPU_HAS_SMARTMIPS
2098 depends on SYS_SUPPORTS_SMARTMIPS
2099 bool "Support for the SmartMIPS ASE"
2100 help
2101 SmartMIPS is a extension of the MIPS32 architecture aimed at
2102 increased security at both hardware and software level for
2103 smartcards. Enabling this option will allow proper use of the
2104 SmartMIPS instructions by Linux applications. However a kernel with
2105 this option will not work on a MIPS core without SmartMIPS core. If
2106 you don't know you probably don't have SmartMIPS and should say N
2107 here.
2108
2109 config CPU_MICROMIPS
2110 depends on SYS_SUPPORTS_MICROMIPS
2111 bool "Build kernel using microMIPS ISA"
2112 help
2113 When this option is enabled the kernel will be built using the
2114 microMIPS ISA
2115
2116 config CPU_HAS_MSA
2117 bool "Support for the MIPS SIMD Architecture (EXPERIMENTAL)"
2118 depends on CPU_SUPPORTS_MSA
2119 depends on 64BIT || MIPS_O32_FP64_SUPPORT
2120 help
2121 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2122 and a set of SIMD instructions to operate on them. When this option
2123 is enabled the kernel will support allocating & switching MSA
2124 vector register contexts. If you know that your kernel will only be
2125 running on CPUs which do not support MSA or that your userland will
2126 not be making use of it then you may wish to say N here to reduce
2127 the size & complexity of your kernel.
2128
2129 If unsure, say Y.
2130
2131 config CPU_HAS_WB
2132 bool
2133
2134 config XKS01
2135 bool
2136
2137 #
2138 # Vectored interrupt mode is an R2 feature
2139 #
2140 config CPU_MIPSR2_IRQ_VI
2141 bool
2142
2143 #
2144 # Extended interrupt mode is an R2 feature
2145 #
2146 config CPU_MIPSR2_IRQ_EI
2147 bool
2148
2149 config CPU_HAS_SYNC
2150 bool
2151 depends on !CPU_R3000
2152 default y
2153
2154 #
2155 # CPU non-features
2156 #
2157 config CPU_DADDI_WORKAROUNDS
2158 bool
2159
2160 config CPU_R4000_WORKAROUNDS
2161 bool
2162 select CPU_R4400_WORKAROUNDS
2163
2164 config CPU_R4400_WORKAROUNDS
2165 bool
2166
2167 #
2168 # - Highmem only makes sense for the 32-bit kernel.
2169 # - The current highmem code will only work properly on physically indexed
2170 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2171 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2172 # moment we protect the user and offer the highmem option only on machines
2173 # where it's known to be safe. This will not offer highmem on a few systems
2174 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2175 # indexed CPUs but we're playing safe.
2176 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2177 # know they might have memory configurations that could make use of highmem
2178 # support.
2179 #
2180 config HIGHMEM
2181 bool "High Memory Support"
2182 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2183
2184 config CPU_SUPPORTS_HIGHMEM
2185 bool
2186
2187 config SYS_SUPPORTS_HIGHMEM
2188 bool
2189
2190 config SYS_SUPPORTS_SMARTMIPS
2191 bool
2192
2193 config SYS_SUPPORTS_MICROMIPS
2194 bool
2195
2196 config SYS_SUPPORTS_MIPS16
2197 bool
2198 help
2199 This option must be set if a kernel might be executed on a MIPS16-
2200 enabled CPU even if MIPS16 is not actually being used. In other
2201 words, it makes the kernel MIPS16-tolerant.
2202
2203 config CPU_SUPPORTS_MSA
2204 bool
2205
2206 config ARCH_FLATMEM_ENABLE
2207 def_bool y
2208 depends on !NUMA && !CPU_LOONGSON2
2209
2210 config ARCH_DISCONTIGMEM_ENABLE
2211 bool
2212 default y if SGI_IP27
2213 help
2214 Say Y to support efficient handling of discontiguous physical memory,
2215 for architectures which are either NUMA (Non-Uniform Memory Access)
2216 or have huge holes in the physical address space for other reasons.
2217 See <file:Documentation/vm/numa> for more.
2218
2219 config ARCH_SPARSEMEM_ENABLE
2220 bool
2221 select SPARSEMEM_STATIC
2222
2223 config NUMA
2224 bool "NUMA Support"
2225 depends on SYS_SUPPORTS_NUMA
2226 help
2227 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2228 Access). This option improves performance on systems with more
2229 than two nodes; on two node systems it is generally better to
2230 leave it disabled; on single node systems disable this option
2231 disabled.
2232
2233 config SYS_SUPPORTS_NUMA
2234 bool
2235
2236 config NODES_SHIFT
2237 int
2238 default "6"
2239 depends on NEED_MULTIPLE_NODES
2240
2241 config HW_PERF_EVENTS
2242 bool "Enable hardware performance counter support for perf events"
2243 depends on PERF_EVENTS && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2244 default y
2245 help
2246 Enable hardware performance counter support for perf events. If
2247 disabled, perf events will use software events only.
2248
2249 source "mm/Kconfig"
2250
2251 config SMP
2252 bool "Multi-Processing support"
2253 depends on SYS_SUPPORTS_SMP
2254 help
2255 This enables support for systems with more than one CPU. If you have
2256 a system with only one CPU, say N. If you have a system with more
2257 than one CPU, say Y.
2258
2259 If you say N here, the kernel will run on uni- and multiprocessor
2260 machines, but will use only one CPU of a multiprocessor machine. If
2261 you say Y here, the kernel will run on many, but not all,
2262 uniprocessor machines. On a uniprocessor machine, the kernel
2263 will run faster if you say N here.
2264
2265 People using multiprocessor machines who say Y here should also say
2266 Y to "Enhanced Real Time Clock Support", below.
2267
2268 See also the SMP-HOWTO available at
2269 <http://www.tldp.org/docs.html#howto>.
2270
2271 If you don't know what to do here, say N.
2272
2273 config SMP_UP
2274 bool
2275
2276 config SYS_SUPPORTS_MIPS_CMP
2277 bool
2278
2279 config SYS_SUPPORTS_MIPS_CPS
2280 bool
2281
2282 config SYS_SUPPORTS_SMP
2283 bool
2284
2285 config NR_CPUS_DEFAULT_4
2286 bool
2287
2288 config NR_CPUS_DEFAULT_8
2289 bool
2290
2291 config NR_CPUS_DEFAULT_16
2292 bool
2293
2294 config NR_CPUS_DEFAULT_32
2295 bool
2296
2297 config NR_CPUS_DEFAULT_64
2298 bool
2299
2300 config NR_CPUS
2301 int "Maximum number of CPUs (2-256)"
2302 range 2 256
2303 depends on SMP
2304 default "4" if NR_CPUS_DEFAULT_4
2305 default "8" if NR_CPUS_DEFAULT_8
2306 default "16" if NR_CPUS_DEFAULT_16
2307 default "32" if NR_CPUS_DEFAULT_32
2308 default "64" if NR_CPUS_DEFAULT_64
2309 help
2310 This allows you to specify the maximum number of CPUs which this
2311 kernel will support. The maximum supported value is 32 for 32-bit
2312 kernel and 64 for 64-bit kernels; the minimum value which makes
2313 sense is 1 for Qemu (useful only for kernel debugging purposes)
2314 and 2 for all others.
2315
2316 This is purely to save memory - each supported CPU adds
2317 approximately eight kilobytes to the kernel image. For best
2318 performance should round up your number of processors to the next
2319 power of two.
2320
2321 config MIPS_PERF_SHARED_TC_COUNTERS
2322 bool
2323
2324 #
2325 # Timer Interrupt Frequency Configuration
2326 #
2327
2328 choice
2329 prompt "Timer frequency"
2330 default HZ_250
2331 help
2332 Allows the configuration of the timer frequency.
2333
2334 config HZ_48
2335 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2336
2337 config HZ_100
2338 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2339
2340 config HZ_128
2341 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2342
2343 config HZ_250
2344 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2345
2346 config HZ_256
2347 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2348
2349 config HZ_1000
2350 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2351
2352 config HZ_1024
2353 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2354
2355 endchoice
2356
2357 config SYS_SUPPORTS_48HZ
2358 bool
2359
2360 config SYS_SUPPORTS_100HZ
2361 bool
2362
2363 config SYS_SUPPORTS_128HZ
2364 bool
2365
2366 config SYS_SUPPORTS_250HZ
2367 bool
2368
2369 config SYS_SUPPORTS_256HZ
2370 bool
2371
2372 config SYS_SUPPORTS_1000HZ
2373 bool
2374
2375 config SYS_SUPPORTS_1024HZ
2376 bool
2377
2378 config SYS_SUPPORTS_ARBIT_HZ
2379 bool
2380 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2381 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2382 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2383 !SYS_SUPPORTS_1024HZ
2384
2385 config HZ
2386 int
2387 default 48 if HZ_48
2388 default 100 if HZ_100
2389 default 128 if HZ_128
2390 default 250 if HZ_250
2391 default 256 if HZ_256
2392 default 1000 if HZ_1000
2393 default 1024 if HZ_1024
2394
2395 source "kernel/Kconfig.preempt"
2396
2397 config KEXEC
2398 bool "Kexec system call"
2399 select CRYPTO
2400 select CRYPTO_SHA256
2401 help
2402 kexec is a system call that implements the ability to shutdown your
2403 current kernel, and to start another kernel. It is like a reboot
2404 but it is independent of the system firmware. And like a reboot
2405 you can start any kernel with it, not just Linux.
2406
2407 The name comes from the similarity to the exec system call.
2408
2409 It is an ongoing process to be certain the hardware in a machine
2410 is properly shutdown, so do not be surprised if this code does not
2411 initially work for you. As of this writing the exact hardware
2412 interface is strongly in flux, so no good recommendation can be
2413 made.
2414
2415 config CRASH_DUMP
2416 bool "Kernel crash dumps"
2417 help
2418 Generate crash dump after being started by kexec.
2419 This should be normally only set in special crash dump kernels
2420 which are loaded in the main kernel with kexec-tools into
2421 a specially reserved region and then later executed after
2422 a crash by kdump/kexec. The crash dump kernel must be compiled
2423 to a memory address not used by the main kernel or firmware using
2424 PHYSICAL_START.
2425
2426 config PHYSICAL_START
2427 hex "Physical address where the kernel is loaded"
2428 default "0xffffffff84000000" if 64BIT
2429 default "0x84000000" if 32BIT
2430 depends on CRASH_DUMP
2431 help
2432 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2433 If you plan to use kernel for capturing the crash dump change
2434 this value to start of the reserved region (the "X" value as
2435 specified in the "crashkernel=YM@XM" command line boot parameter
2436 passed to the panic-ed kernel).
2437
2438 config SECCOMP
2439 bool "Enable seccomp to safely compute untrusted bytecode"
2440 depends on PROC_FS
2441 default y
2442 help
2443 This kernel feature is useful for number crunching applications
2444 that may need to compute untrusted bytecode during their
2445 execution. By using pipes or other transports made available to
2446 the process as file descriptors supporting the read/write
2447 syscalls, it's possible to isolate those applications in
2448 their own address space using seccomp. Once seccomp is
2449 enabled via /proc/<pid>/seccomp, it cannot be disabled
2450 and the task is only allowed to execute a few safe syscalls
2451 defined by each seccomp mode.
2452
2453 If unsure, say Y. Only embedded should say N here.
2454
2455 config MIPS_O32_FP64_SUPPORT
2456 bool "Support for O32 binaries using 64-bit FP (EXPERIMENTAL)"
2457 depends on 32BIT || MIPS32_O32
2458 help
2459 When this is enabled, the kernel will support use of 64-bit floating
2460 point registers with binaries using the O32 ABI along with the
2461 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2462 32-bit MIPS systems this support is at the cost of increasing the
2463 size and complexity of the compiled FPU emulator. Thus if you are
2464 running a MIPS32 system and know that none of your userland binaries
2465 will require 64-bit floating point, you may wish to reduce the size
2466 of your kernel & potentially improve FP emulation performance by
2467 saying N here.
2468
2469 Although binutils currently supports use of this flag the details
2470 concerning its effect upon the O32 ABI in userland are still being
2471 worked on. In order to avoid userland becoming dependant upon current
2472 behaviour before the details have been finalised, this option should
2473 be considered experimental and only enabled by those working upon
2474 said details.
2475
2476 If unsure, say N.
2477
2478 config USE_OF
2479 bool
2480 select OF
2481 select OF_EARLY_FLATTREE
2482 select IRQ_DOMAIN
2483
2484 endmenu
2485
2486 config LOCKDEP_SUPPORT
2487 bool
2488 default y
2489
2490 config STACKTRACE_SUPPORT
2491 bool
2492 default y
2493
2494 source "init/Kconfig"
2495
2496 source "kernel/Kconfig.freezer"
2497
2498 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2499
2500 config HW_HAS_EISA
2501 bool
2502 config HW_HAS_PCI
2503 bool
2504
2505 config PCI
2506 bool "Support for PCI controller"
2507 depends on HW_HAS_PCI
2508 select PCI_DOMAINS
2509 select NO_GENERIC_PCI_IOPORT_MAP
2510 help
2511 Find out whether you have a PCI motherboard. PCI is the name of a
2512 bus system, i.e. the way the CPU talks to the other stuff inside
2513 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2514 say Y, otherwise N.
2515
2516 config HT_PCI
2517 bool "Support for HT-linked PCI"
2518 default y
2519 depends on CPU_LOONGSON3
2520 select PCI
2521 select PCI_DOMAINS
2522 help
2523 Loongson family machines use Hyper-Transport bus for inter-core
2524 connection and device connection. The PCI bus is a subordinate
2525 linked at HT. Choose Y for Loongson-3 based machines.
2526
2527 config PCI_DOMAINS
2528 bool
2529
2530 source "drivers/pci/Kconfig"
2531
2532 source "drivers/pci/pcie/Kconfig"
2533
2534 #
2535 # ISA support is now enabled via select. Too many systems still have the one
2536 # or other ISA chip on the board that users don't know about so don't expect
2537 # users to choose the right thing ...
2538 #
2539 config ISA
2540 bool
2541
2542 config EISA
2543 bool "EISA support"
2544 depends on HW_HAS_EISA
2545 select ISA
2546 select GENERIC_ISA_DMA
2547 ---help---
2548 The Extended Industry Standard Architecture (EISA) bus was
2549 developed as an open alternative to the IBM MicroChannel bus.
2550
2551 The EISA bus provided some of the features of the IBM MicroChannel
2552 bus while maintaining backward compatibility with cards made for
2553 the older ISA bus. The EISA bus saw limited use between 1988 and
2554 1995 when it was made obsolete by the PCI bus.
2555
2556 Say Y here if you are building a kernel for an EISA-based machine.
2557
2558 Otherwise, say N.
2559
2560 source "drivers/eisa/Kconfig"
2561
2562 config TC
2563 bool "TURBOchannel support"
2564 depends on MACH_DECSTATION
2565 help
2566 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2567 processors. TURBOchannel programming specifications are available
2568 at:
2569 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2570 and:
2571 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2572 Linux driver support status is documented at:
2573 <http://www.linux-mips.org/wiki/DECstation>
2574
2575 config MMU
2576 bool
2577 default y
2578
2579 config I8253
2580 bool
2581 select CLKSRC_I8253
2582 select CLKEVT_I8253
2583 select MIPS_EXTERNAL_TIMER
2584
2585 config ZONE_DMA
2586 bool
2587
2588 config ZONE_DMA32
2589 bool
2590
2591 source "drivers/pcmcia/Kconfig"
2592
2593 source "drivers/pci/hotplug/Kconfig"
2594
2595 config RAPIDIO
2596 tristate "RapidIO support"
2597 depends on PCI
2598 default n
2599 help
2600 If you say Y here, the kernel will include drivers and
2601 infrastructure code to support RapidIO interconnect devices.
2602
2603 source "drivers/rapidio/Kconfig"
2604
2605 endmenu
2606
2607 menu "Executable file formats"
2608
2609 source "fs/Kconfig.binfmt"
2610
2611 config TRAD_SIGNALS
2612 bool
2613
2614 config MIPS32_COMPAT
2615 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2616 depends on 64BIT
2617 help
2618 Select this option if you want Linux/MIPS 32-bit binary
2619 compatibility. Since all software available for Linux/MIPS is
2620 currently 32-bit you should say Y here.
2621
2622 config COMPAT
2623 bool
2624 depends on MIPS32_COMPAT
2625 select ARCH_WANT_OLD_COMPAT_IPC
2626 default y
2627
2628 config SYSVIPC_COMPAT
2629 bool
2630 depends on COMPAT && SYSVIPC
2631 default y
2632
2633 config MIPS32_O32
2634 bool "Kernel support for o32 binaries"
2635 depends on MIPS32_COMPAT
2636 help
2637 Select this option if you want to run o32 binaries. These are pure
2638 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2639 existing binaries are in this format.
2640
2641 If unsure, say Y.
2642
2643 config MIPS32_N32
2644 bool "Kernel support for n32 binaries"
2645 depends on MIPS32_COMPAT
2646 help
2647 Select this option if you want to run n32 binaries. These are
2648 64-bit binaries using 32-bit quantities for addressing and certain
2649 data that would normally be 64-bit. They are used in special
2650 cases.
2651
2652 If unsure, say N.
2653
2654 config BINFMT_ELF32
2655 bool
2656 default y if MIPS32_O32 || MIPS32_N32
2657
2658 endmenu
2659
2660 menu "Power management options"
2661
2662 config ARCH_HIBERNATION_POSSIBLE
2663 def_bool y
2664 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2665
2666 config ARCH_SUSPEND_POSSIBLE
2667 def_bool y
2668 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2669
2670 source "kernel/power/Kconfig"
2671
2672 endmenu
2673
2674 config MIPS_EXTERNAL_TIMER
2675 bool
2676
2677 menu "CPU Power Management"
2678
2679 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
2680 source "drivers/cpufreq/Kconfig"
2681 endif
2682
2683 source "drivers/cpuidle/Kconfig"
2684
2685 endmenu
2686
2687 source "net/Kconfig"
2688
2689 source "drivers/Kconfig"
2690
2691 source "drivers/firmware/Kconfig"
2692
2693 source "fs/Kconfig"
2694
2695 source "arch/mips/Kconfig.debug"
2696
2697 source "security/Kconfig"
2698
2699 source "crypto/Kconfig"
2700
2701 source "lib/Kconfig"
2702
2703 source "arch/mips/kvm/Kconfig"