Merge tag 'pm-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
[deliverable/linux.git] / arch / mips / Kconfig
1 config MIPS
2 bool
3 default y
4 select HAVE_GENERIC_DMA_COHERENT
5 select HAVE_IDE
6 select HAVE_OPROFILE
7 select HAVE_IRQ_WORK
8 select HAVE_PERF_EVENTS
9 select PERF_USE_VMALLOC
10 select HAVE_ARCH_KGDB
11 select ARCH_HAVE_CUSTOM_GPIO_H
12 select HAVE_FUNCTION_TRACER
13 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
14 select HAVE_DYNAMIC_FTRACE
15 select HAVE_FTRACE_MCOUNT_RECORD
16 select HAVE_C_RECORDMCOUNT
17 select HAVE_FUNCTION_GRAPH_TRACER
18 select HAVE_KPROBES
19 select HAVE_KRETPROBES
20 select HAVE_DEBUG_KMEMLEAK
21 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
22 select RTC_LIB if !MACH_LOONGSON
23 select GENERIC_ATOMIC64 if !64BIT
24 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
25 select HAVE_DMA_ATTRS
26 select HAVE_DMA_API_DEBUG
27 select HAVE_GENERIC_HARDIRQS
28 select GENERIC_IRQ_PROBE
29 select GENERIC_IRQ_SHOW
30 select HAVE_ARCH_JUMP_LABEL
31 select ARCH_WANT_IPC_PARSE_VERSION
32 select IRQ_FORCED_THREADING
33 select HAVE_MEMBLOCK
34 select HAVE_MEMBLOCK_NODE_MAP
35 select ARCH_DISCARD_MEMBLOCK
36 select GENERIC_SMP_IDLE_THREAD
37 select BUILDTIME_EXTABLE_SORT
38 select GENERIC_CLOCKEVENTS
39 select GENERIC_CMOS_UPDATE
40 select HAVE_MOD_ARCH_SPECIFIC
41 select MODULES_USE_ELF_REL
42 select MODULES_USE_ELF_RELA if 64BIT
43 select GENERIC_KERNEL_THREAD
44 select GENERIC_KERNEL_EXECVE
45
46 menu "Machine selection"
47
48 config ZONE_DMA
49 bool
50
51 choice
52 prompt "System type"
53 default SGI_IP22
54
55 config MIPS_ALCHEMY
56 bool "Alchemy processor based machines"
57 select 64BIT_PHYS_ADDR
58 select CEVT_R4K_LIB
59 select CSRC_R4K_LIB
60 select IRQ_CPU
61 select SYS_HAS_CPU_MIPS32_R1
62 select SYS_SUPPORTS_32BIT_KERNEL
63 select SYS_SUPPORTS_APM_EMULATION
64 select GENERIC_GPIO
65 select ARCH_WANT_OPTIONAL_GPIOLIB
66 select SYS_SUPPORTS_ZBOOT
67 select USB_ARCH_HAS_OHCI
68 select USB_ARCH_HAS_EHCI
69
70 config AR7
71 bool "Texas Instruments AR7"
72 select BOOT_ELF32
73 select DMA_NONCOHERENT
74 select CEVT_R4K
75 select CSRC_R4K
76 select IRQ_CPU
77 select NO_EXCEPT_FILL
78 select SWAP_IO_SPACE
79 select SYS_HAS_CPU_MIPS32_R1
80 select SYS_HAS_EARLY_PRINTK
81 select SYS_SUPPORTS_32BIT_KERNEL
82 select SYS_SUPPORTS_LITTLE_ENDIAN
83 select SYS_SUPPORTS_ZBOOT_UART16550
84 select ARCH_REQUIRE_GPIOLIB
85 select VLYNQ
86 select HAVE_CLK
87 help
88 Support for the Texas Instruments AR7 System-on-a-Chip
89 family: TNETD7100, 7200 and 7300.
90
91 config ATH79
92 bool "Atheros AR71XX/AR724X/AR913X based boards"
93 select ARCH_REQUIRE_GPIOLIB
94 select BOOT_RAW
95 select CEVT_R4K
96 select CSRC_R4K
97 select DMA_NONCOHERENT
98 select HAVE_CLK
99 select IRQ_CPU
100 select MIPS_MACHINE
101 select SYS_HAS_CPU_MIPS32_R2
102 select SYS_HAS_EARLY_PRINTK
103 select SYS_SUPPORTS_32BIT_KERNEL
104 select SYS_SUPPORTS_BIG_ENDIAN
105 help
106 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
107
108 config BCM47XX
109 bool "Broadcom BCM47XX based boards"
110 select CEVT_R4K
111 select CSRC_R4K
112 select DMA_NONCOHERENT
113 select HW_HAS_PCI
114 select IRQ_CPU
115 select SYS_SUPPORTS_32BIT_KERNEL
116 select SYS_SUPPORTS_LITTLE_ENDIAN
117 select GENERIC_GPIO
118 select SYS_HAS_EARLY_PRINTK
119 select CFE
120 help
121 Support for BCM47XX based boards
122
123 config BCM63XX
124 bool "Broadcom BCM63XX based boards"
125 select CEVT_R4K
126 select CSRC_R4K
127 select DMA_NONCOHERENT
128 select IRQ_CPU
129 select SYS_HAS_CPU_MIPS32_R1
130 select SYS_SUPPORTS_32BIT_KERNEL
131 select SYS_SUPPORTS_BIG_ENDIAN
132 select SYS_HAS_EARLY_PRINTK
133 select SWAP_IO_SPACE
134 select ARCH_REQUIRE_GPIOLIB
135 select HAVE_CLK
136 help
137 Support for BCM63XX based boards
138
139 config MIPS_COBALT
140 bool "Cobalt Server"
141 select CEVT_R4K
142 select CSRC_R4K
143 select CEVT_GT641XX
144 select DMA_NONCOHERENT
145 select HW_HAS_PCI
146 select I8253
147 select I8259
148 select IRQ_CPU
149 select IRQ_GT641XX
150 select PCI_GT64XXX_PCI0
151 select PCI
152 select SYS_HAS_CPU_NEVADA
153 select SYS_HAS_EARLY_PRINTK
154 select SYS_SUPPORTS_32BIT_KERNEL
155 select SYS_SUPPORTS_64BIT_KERNEL
156 select SYS_SUPPORTS_LITTLE_ENDIAN
157
158 config MACH_DECSTATION
159 bool "DECstations"
160 select BOOT_ELF32
161 select CEVT_DS1287
162 select CEVT_R4K
163 select CSRC_IOASIC
164 select CSRC_R4K
165 select CPU_DADDI_WORKAROUNDS if 64BIT
166 select CPU_R4000_WORKAROUNDS if 64BIT
167 select CPU_R4400_WORKAROUNDS if 64BIT
168 select DMA_NONCOHERENT
169 select NO_IOPORT
170 select IRQ_CPU
171 select SYS_HAS_CPU_R3000
172 select SYS_HAS_CPU_R4X00
173 select SYS_SUPPORTS_32BIT_KERNEL
174 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
175 select SYS_SUPPORTS_LITTLE_ENDIAN
176 select SYS_SUPPORTS_128HZ
177 select SYS_SUPPORTS_256HZ
178 select SYS_SUPPORTS_1024HZ
179 help
180 This enables support for DEC's MIPS based workstations. For details
181 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
182 DECstation porting pages on <http://decstation.unix-ag.org/>.
183
184 If you have one of the following DECstation Models you definitely
185 want to choose R4xx0 for the CPU Type:
186
187 DECstation 5000/50
188 DECstation 5000/150
189 DECstation 5000/260
190 DECsystem 5900/260
191
192 otherwise choose R3000.
193
194 config MACH_JAZZ
195 bool "Jazz family of machines"
196 select ARC
197 select ARC32
198 select ARCH_MAY_HAVE_PC_FDC
199 select CEVT_R4K
200 select CSRC_R4K
201 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
202 select GENERIC_ISA_DMA
203 select HAVE_PCSPKR_PLATFORM
204 select IRQ_CPU
205 select I8253
206 select I8259
207 select ISA
208 select SYS_HAS_CPU_R4X00
209 select SYS_SUPPORTS_32BIT_KERNEL
210 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
211 select SYS_SUPPORTS_100HZ
212 help
213 This a family of machines based on the MIPS R4030 chipset which was
214 used by several vendors to build RISC/os and Windows NT workstations.
215 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
216 Olivetti M700-10 workstations.
217
218 config MACH_JZ4740
219 bool "Ingenic JZ4740 based machines"
220 select SYS_HAS_CPU_MIPS32_R1
221 select SYS_SUPPORTS_32BIT_KERNEL
222 select SYS_SUPPORTS_LITTLE_ENDIAN
223 select SYS_SUPPORTS_ZBOOT_UART16550
224 select DMA_NONCOHERENT
225 select IRQ_CPU
226 select GENERIC_GPIO
227 select ARCH_REQUIRE_GPIOLIB
228 select SYS_HAS_EARLY_PRINTK
229 select HAVE_PWM
230 select HAVE_CLK
231 select GENERIC_IRQ_CHIP
232
233 config LANTIQ
234 bool "Lantiq based platforms"
235 select DMA_NONCOHERENT
236 select IRQ_CPU
237 select CEVT_R4K
238 select CSRC_R4K
239 select SYS_HAS_CPU_MIPS32_R1
240 select SYS_HAS_CPU_MIPS32_R2
241 select SYS_SUPPORTS_BIG_ENDIAN
242 select SYS_SUPPORTS_32BIT_KERNEL
243 select SYS_SUPPORTS_MULTITHREADING
244 select SYS_HAS_EARLY_PRINTK
245 select ARCH_REQUIRE_GPIOLIB
246 select SWAP_IO_SPACE
247 select BOOT_RAW
248 select HAVE_MACH_CLKDEV
249 select CLKDEV_LOOKUP
250 select USE_OF
251 select PINCTRL
252 select PINCTRL_LANTIQ
253
254 config LASAT
255 bool "LASAT Networks platforms"
256 select CEVT_R4K
257 select CSRC_R4K
258 select DMA_NONCOHERENT
259 select SYS_HAS_EARLY_PRINTK
260 select HW_HAS_PCI
261 select IRQ_CPU
262 select PCI_GT64XXX_PCI0
263 select MIPS_NILE4
264 select R5000_CPU_SCACHE
265 select SYS_HAS_CPU_R5000
266 select SYS_SUPPORTS_32BIT_KERNEL
267 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
268 select SYS_SUPPORTS_LITTLE_ENDIAN
269
270 config MACH_LOONGSON
271 bool "Loongson family of machines"
272 select SYS_SUPPORTS_ZBOOT
273 help
274 This enables the support of Loongson family of machines.
275
276 Loongson is a family of general-purpose MIPS-compatible CPUs.
277 developed at Institute of Computing Technology (ICT),
278 Chinese Academy of Sciences (CAS) in the People's Republic
279 of China. The chief architect is Professor Weiwu Hu.
280
281 config MACH_LOONGSON1
282 bool "Loongson 1 family of machines"
283 select SYS_SUPPORTS_ZBOOT
284 help
285 This enables support for the Loongson 1 based machines.
286
287 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
288 the ICT (Institute of Computing Technology) and the Chinese Academy
289 of Sciences.
290
291 config MIPS_MALTA
292 bool "MIPS Malta board"
293 select ARCH_MAY_HAVE_PC_FDC
294 select BOOT_ELF32
295 select BOOT_RAW
296 select CEVT_R4K
297 select CSRC_R4K
298 select DMA_NONCOHERENT
299 select GENERIC_ISA_DMA
300 select HAVE_PCSPKR_PLATFORM
301 select IRQ_CPU
302 select IRQ_GIC
303 select HW_HAS_PCI
304 select I8253
305 select I8259
306 select MIPS_BOARDS_GEN
307 select MIPS_BONITO64
308 select MIPS_CPU_SCACHE
309 select PCI_GT64XXX_PCI0
310 select MIPS_MSC
311 select SWAP_IO_SPACE
312 select SYS_HAS_CPU_MIPS32_R1
313 select SYS_HAS_CPU_MIPS32_R2
314 select SYS_HAS_CPU_MIPS64_R1
315 select SYS_HAS_CPU_MIPS64_R2
316 select SYS_HAS_CPU_NEVADA
317 select SYS_HAS_CPU_RM7000
318 select SYS_HAS_EARLY_PRINTK
319 select SYS_SUPPORTS_32BIT_KERNEL
320 select SYS_SUPPORTS_64BIT_KERNEL
321 select SYS_SUPPORTS_BIG_ENDIAN
322 select SYS_SUPPORTS_LITTLE_ENDIAN
323 select SYS_SUPPORTS_MIPS_CMP
324 select SYS_SUPPORTS_MULTITHREADING
325 select SYS_SUPPORTS_SMARTMIPS
326 select SYS_SUPPORTS_ZBOOT
327 help
328 This enables support for the MIPS Technologies Malta evaluation
329 board.
330
331 config MIPS_SEAD3
332 bool "MIPS SEAD3 board"
333 select BOOT_ELF32
334 select BOOT_RAW
335 select CEVT_R4K
336 select CSRC_R4K
337 select CPU_MIPSR2_IRQ_VI
338 select CPU_MIPSR2_IRQ_EI
339 select DMA_NONCOHERENT
340 select IRQ_CPU
341 select IRQ_GIC
342 select MIPS_BOARDS_GEN
343 select MIPS_CPU_SCACHE
344 select MIPS_MSC
345 select SYS_HAS_CPU_MIPS32_R1
346 select SYS_HAS_CPU_MIPS32_R2
347 select SYS_HAS_CPU_MIPS64_R1
348 select SYS_HAS_EARLY_PRINTK
349 select SYS_SUPPORTS_32BIT_KERNEL
350 select SYS_SUPPORTS_64BIT_KERNEL
351 select SYS_SUPPORTS_BIG_ENDIAN
352 select SYS_SUPPORTS_LITTLE_ENDIAN
353 select SYS_SUPPORTS_SMARTMIPS
354 select USB_ARCH_HAS_EHCI
355 select USB_EHCI_BIG_ENDIAN_DESC
356 select USB_EHCI_BIG_ENDIAN_MMIO
357 help
358 This enables support for the MIPS Technologies SEAD3 evaluation
359 board.
360
361 config NEC_MARKEINS
362 bool "NEC EMMA2RH Mark-eins board"
363 select SOC_EMMA2RH
364 select HW_HAS_PCI
365 help
366 This enables support for the NEC Electronics Mark-eins boards.
367
368 config MACH_VR41XX
369 bool "NEC VR4100 series based machines"
370 select CEVT_R4K
371 select CSRC_R4K
372 select SYS_HAS_CPU_VR41XX
373 select ARCH_REQUIRE_GPIOLIB
374
375 config NXP_STB220
376 bool "NXP STB220 board"
377 select SOC_PNX833X
378 help
379 Support for NXP Semiconductors STB220 Development Board.
380
381 config NXP_STB225
382 bool "NXP 225 board"
383 select SOC_PNX833X
384 select SOC_PNX8335
385 help
386 Support for NXP Semiconductors STB225 Development Board.
387
388 config PNX8550_JBS
389 bool "NXP PNX8550 based JBS board"
390 select PNX8550
391 select SYS_SUPPORTS_LITTLE_ENDIAN
392
393 config PNX8550_STB810
394 bool "NXP PNX8550 based STB810 board"
395 select PNX8550
396 select SYS_SUPPORTS_LITTLE_ENDIAN
397
398 config PMC_MSP
399 bool "PMC-Sierra MSP chipsets"
400 depends on EXPERIMENTAL
401 select CEVT_R4K
402 select CSRC_R4K
403 select DMA_NONCOHERENT
404 select SWAP_IO_SPACE
405 select NO_EXCEPT_FILL
406 select BOOT_RAW
407 select SYS_HAS_CPU_MIPS32_R1
408 select SYS_HAS_CPU_MIPS32_R2
409 select SYS_SUPPORTS_32BIT_KERNEL
410 select SYS_SUPPORTS_BIG_ENDIAN
411 select IRQ_CPU
412 select SERIAL_8250
413 select SERIAL_8250_CONSOLE
414 help
415 This adds support for the PMC-Sierra family of Multi-Service
416 Processor System-On-A-Chips. These parts include a number
417 of integrated peripherals, interfaces and DSPs in addition to
418 a variety of MIPS cores.
419
420 config PMC_YOSEMITE
421 bool "PMC-Sierra Yosemite eval board"
422 select CEVT_R4K
423 select CSRC_R4K
424 select DMA_COHERENT
425 select HW_HAS_PCI
426 select IRQ_CPU
427 select IRQ_CPU_RM7K
428 select IRQ_CPU_RM9K
429 select SWAP_IO_SPACE
430 select SYS_HAS_CPU_RM9000
431 select SYS_HAS_EARLY_PRINTK
432 select SYS_SUPPORTS_32BIT_KERNEL
433 select SYS_SUPPORTS_64BIT_KERNEL
434 select SYS_SUPPORTS_BIG_ENDIAN
435 select SYS_SUPPORTS_HIGHMEM
436 select SYS_SUPPORTS_SMP
437 help
438 Yosemite is an evaluation board for the RM9000x2 processor
439 manufactured by PMC-Sierra.
440
441 config POWERTV
442 bool "Cisco PowerTV"
443 select BOOT_ELF32
444 select CEVT_R4K
445 select CPU_MIPSR2_IRQ_VI
446 select CPU_MIPSR2_IRQ_EI
447 select CSRC_POWERTV
448 select DMA_NONCOHERENT
449 select HW_HAS_PCI
450 select SYS_HAS_EARLY_PRINTK
451 select SYS_HAS_CPU_MIPS32_R2
452 select SYS_SUPPORTS_32BIT_KERNEL
453 select SYS_SUPPORTS_BIG_ENDIAN
454 select SYS_SUPPORTS_HIGHMEM
455 select USB_OHCI_LITTLE_ENDIAN
456 help
457 This enables support for the Cisco PowerTV Platform.
458
459 config SGI_IP22
460 bool "SGI IP22 (Indy/Indigo2)"
461 select ARC
462 select ARC32
463 select BOOT_ELF32
464 select CEVT_R4K
465 select CSRC_R4K
466 select DEFAULT_SGI_PARTITION
467 select DMA_NONCOHERENT
468 select HW_HAS_EISA
469 select I8253
470 select I8259
471 select IP22_CPU_SCACHE
472 select IRQ_CPU
473 select GENERIC_ISA_DMA_SUPPORT_BROKEN
474 select SGI_HAS_I8042
475 select SGI_HAS_INDYDOG
476 select SGI_HAS_HAL2
477 select SGI_HAS_SEEQ
478 select SGI_HAS_WD93
479 select SGI_HAS_ZILOG
480 select SWAP_IO_SPACE
481 select SYS_HAS_CPU_R4X00
482 select SYS_HAS_CPU_R5000
483 #
484 # Disable EARLY_PRINTK for now since it leads to overwritten prom
485 # memory during early boot on some machines.
486 #
487 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
488 # for a more details discussion
489 #
490 # select SYS_HAS_EARLY_PRINTK
491 select SYS_SUPPORTS_32BIT_KERNEL
492 select SYS_SUPPORTS_64BIT_KERNEL
493 select SYS_SUPPORTS_BIG_ENDIAN
494 help
495 This are the SGI Indy, Challenge S and Indigo2, as well as certain
496 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
497 that runs on these, say Y here.
498
499 config SGI_IP27
500 bool "SGI IP27 (Origin200/2000)"
501 select ARC
502 select ARC64
503 select BOOT_ELF64
504 select DEFAULT_SGI_PARTITION
505 select DMA_COHERENT
506 select SYS_HAS_EARLY_PRINTK
507 select HW_HAS_PCI
508 select NR_CPUS_DEFAULT_64
509 select SYS_HAS_CPU_R10000
510 select SYS_SUPPORTS_64BIT_KERNEL
511 select SYS_SUPPORTS_BIG_ENDIAN
512 select SYS_SUPPORTS_NUMA
513 select SYS_SUPPORTS_SMP
514 help
515 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
516 workstations. To compile a Linux kernel that runs on these, say Y
517 here.
518
519 config SGI_IP28
520 bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
521 depends on EXPERIMENTAL
522 select ARC
523 select ARC64
524 select BOOT_ELF64
525 select CEVT_R4K
526 select CSRC_R4K
527 select DEFAULT_SGI_PARTITION
528 select DMA_NONCOHERENT
529 select GENERIC_ISA_DMA_SUPPORT_BROKEN
530 select IRQ_CPU
531 select HW_HAS_EISA
532 select I8253
533 select I8259
534 select SGI_HAS_I8042
535 select SGI_HAS_INDYDOG
536 select SGI_HAS_HAL2
537 select SGI_HAS_SEEQ
538 select SGI_HAS_WD93
539 select SGI_HAS_ZILOG
540 select SWAP_IO_SPACE
541 select SYS_HAS_CPU_R10000
542 #
543 # Disable EARLY_PRINTK for now since it leads to overwritten prom
544 # memory during early boot on some machines.
545 #
546 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
547 # for a more details discussion
548 #
549 # select SYS_HAS_EARLY_PRINTK
550 select SYS_SUPPORTS_64BIT_KERNEL
551 select SYS_SUPPORTS_BIG_ENDIAN
552 help
553 This is the SGI Indigo2 with R10000 processor. To compile a Linux
554 kernel that runs on these, say Y here.
555
556 config SGI_IP32
557 bool "SGI IP32 (O2)"
558 select ARC
559 select ARC32
560 select BOOT_ELF32
561 select CEVT_R4K
562 select CSRC_R4K
563 select DMA_NONCOHERENT
564 select HW_HAS_PCI
565 select IRQ_CPU
566 select R5000_CPU_SCACHE
567 select RM7000_CPU_SCACHE
568 select SYS_HAS_CPU_R5000
569 select SYS_HAS_CPU_R10000 if BROKEN
570 select SYS_HAS_CPU_RM7000
571 select SYS_HAS_CPU_NEVADA
572 select SYS_SUPPORTS_64BIT_KERNEL
573 select SYS_SUPPORTS_BIG_ENDIAN
574 help
575 If you want this kernel to run on SGI O2 workstation, say Y here.
576
577 config SIBYTE_CRHINE
578 bool "Sibyte BCM91120C-CRhine"
579 depends on EXPERIMENTAL
580 select BOOT_ELF32
581 select DMA_COHERENT
582 select SIBYTE_BCM1120
583 select SWAP_IO_SPACE
584 select SYS_HAS_CPU_SB1
585 select SYS_SUPPORTS_BIG_ENDIAN
586 select SYS_SUPPORTS_LITTLE_ENDIAN
587
588 config SIBYTE_CARMEL
589 bool "Sibyte BCM91120x-Carmel"
590 depends on EXPERIMENTAL
591 select BOOT_ELF32
592 select DMA_COHERENT
593 select SIBYTE_BCM1120
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_CRHONE
600 bool "Sibyte BCM91125C-CRhone"
601 depends on EXPERIMENTAL
602 select BOOT_ELF32
603 select DMA_COHERENT
604 select SIBYTE_BCM1125
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
611 config SIBYTE_RHONE
612 bool "Sibyte BCM91125E-Rhone"
613 depends on EXPERIMENTAL
614 select BOOT_ELF32
615 select DMA_COHERENT
616 select SIBYTE_BCM1125H
617 select SWAP_IO_SPACE
618 select SYS_HAS_CPU_SB1
619 select SYS_SUPPORTS_BIG_ENDIAN
620 select SYS_SUPPORTS_LITTLE_ENDIAN
621
622 config SIBYTE_SWARM
623 bool "Sibyte BCM91250A-SWARM"
624 select BOOT_ELF32
625 select DMA_COHERENT
626 select HAVE_PATA_PLATFORM
627 select NR_CPUS_DEFAULT_2
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_HIGHMEM
633 select SYS_SUPPORTS_LITTLE_ENDIAN
634 select ZONE_DMA32 if 64BIT
635
636 config SIBYTE_LITTLESUR
637 bool "Sibyte BCM91250C2-LittleSur"
638 depends on EXPERIMENTAL
639 select BOOT_ELF32
640 select DMA_COHERENT
641 select HAVE_PATA_PLATFORM
642 select NR_CPUS_DEFAULT_2
643 select SIBYTE_SB1250
644 select SWAP_IO_SPACE
645 select SYS_HAS_CPU_SB1
646 select SYS_SUPPORTS_BIG_ENDIAN
647 select SYS_SUPPORTS_HIGHMEM
648 select SYS_SUPPORTS_LITTLE_ENDIAN
649
650 config SIBYTE_SENTOSA
651 bool "Sibyte BCM91250E-Sentosa"
652 depends on EXPERIMENTAL
653 select BOOT_ELF32
654 select DMA_COHERENT
655 select NR_CPUS_DEFAULT_2
656 select SIBYTE_SB1250
657 select SWAP_IO_SPACE
658 select SYS_HAS_CPU_SB1
659 select SYS_SUPPORTS_BIG_ENDIAN
660 select SYS_SUPPORTS_LITTLE_ENDIAN
661
662 config SIBYTE_BIGSUR
663 bool "Sibyte BCM91480B-BigSur"
664 select BOOT_ELF32
665 select DMA_COHERENT
666 select NR_CPUS_DEFAULT_4
667 select SIBYTE_BCM1x80
668 select SWAP_IO_SPACE
669 select SYS_HAS_CPU_SB1
670 select SYS_SUPPORTS_BIG_ENDIAN
671 select SYS_SUPPORTS_HIGHMEM
672 select SYS_SUPPORTS_LITTLE_ENDIAN
673 select ZONE_DMA32 if 64BIT
674
675 config SNI_RM
676 bool "SNI RM200/300/400"
677 select ARC if CPU_LITTLE_ENDIAN
678 select ARC32 if CPU_LITTLE_ENDIAN
679 select SNIPROM if CPU_BIG_ENDIAN
680 select ARCH_MAY_HAVE_PC_FDC
681 select BOOT_ELF32
682 select CEVT_R4K
683 select CSRC_R4K
684 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
685 select DMA_NONCOHERENT
686 select GENERIC_ISA_DMA
687 select HAVE_PCSPKR_PLATFORM
688 select HW_HAS_EISA
689 select HW_HAS_PCI
690 select IRQ_CPU
691 select I8253
692 select I8259
693 select ISA
694 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
695 select SYS_HAS_CPU_R4X00
696 select SYS_HAS_CPU_R5000
697 select SYS_HAS_CPU_R10000
698 select R5000_CPU_SCACHE
699 select SYS_HAS_EARLY_PRINTK
700 select SYS_SUPPORTS_32BIT_KERNEL
701 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
702 select SYS_SUPPORTS_BIG_ENDIAN
703 select SYS_SUPPORTS_HIGHMEM
704 select SYS_SUPPORTS_LITTLE_ENDIAN
705 help
706 The SNI RM200/300/400 are MIPS-based machines manufactured by
707 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
708 Technology and now in turn merged with Fujitsu. Say Y here to
709 support this machine type.
710
711 config MACH_TX39XX
712 bool "Toshiba TX39 series based machines"
713
714 config MACH_TX49XX
715 bool "Toshiba TX49 series based machines"
716
717 config MIKROTIK_RB532
718 bool "Mikrotik RB532 boards"
719 select CEVT_R4K
720 select CSRC_R4K
721 select DMA_NONCOHERENT
722 select HW_HAS_PCI
723 select IRQ_CPU
724 select SYS_HAS_CPU_MIPS32_R1
725 select SYS_SUPPORTS_32BIT_KERNEL
726 select SYS_SUPPORTS_LITTLE_ENDIAN
727 select SWAP_IO_SPACE
728 select BOOT_RAW
729 select ARCH_REQUIRE_GPIOLIB
730 help
731 Support the Mikrotik(tm) RouterBoard 532 series,
732 based on the IDT RC32434 SoC.
733
734 config WR_PPMC
735 bool "Wind River PPMC board"
736 select CEVT_R4K
737 select CSRC_R4K
738 select IRQ_CPU
739 select BOOT_ELF32
740 select DMA_NONCOHERENT
741 select HW_HAS_PCI
742 select PCI_GT64XXX_PCI0
743 select SWAP_IO_SPACE
744 select SYS_HAS_CPU_MIPS32_R1
745 select SYS_HAS_CPU_MIPS32_R2
746 select SYS_HAS_CPU_MIPS64_R1
747 select SYS_HAS_CPU_NEVADA
748 select SYS_HAS_CPU_RM7000
749 select SYS_SUPPORTS_32BIT_KERNEL
750 select SYS_SUPPORTS_64BIT_KERNEL
751 select SYS_SUPPORTS_BIG_ENDIAN
752 select SYS_SUPPORTS_LITTLE_ENDIAN
753 help
754 This enables support for the Wind River MIPS32 4KC PPMC evaluation
755 board, which is based on GT64120 bridge chip.
756
757 config CAVIUM_OCTEON_SIMULATOR
758 bool "Cavium Networks Octeon Simulator"
759 select CEVT_R4K
760 select 64BIT_PHYS_ADDR
761 select DMA_COHERENT
762 select SYS_SUPPORTS_64BIT_KERNEL
763 select SYS_SUPPORTS_BIG_ENDIAN
764 select SYS_SUPPORTS_HOTPLUG_CPU
765 select SYS_HAS_CPU_CAVIUM_OCTEON
766 select HOLES_IN_ZONE
767 help
768 The Octeon simulator is software performance model of the Cavium
769 Octeon Processor. It supports simulating Octeon processors on x86
770 hardware.
771
772 config CAVIUM_OCTEON_REFERENCE_BOARD
773 bool "Cavium Networks Octeon reference board"
774 select CEVT_R4K
775 select 64BIT_PHYS_ADDR
776 select DMA_COHERENT
777 select SYS_SUPPORTS_64BIT_KERNEL
778 select SYS_SUPPORTS_BIG_ENDIAN
779 select SYS_SUPPORTS_HOTPLUG_CPU
780 select SYS_HAS_EARLY_PRINTK
781 select SYS_HAS_CPU_CAVIUM_OCTEON
782 select SWAP_IO_SPACE
783 select HW_HAS_PCI
784 select ARCH_SUPPORTS_MSI
785 select ZONE_DMA32
786 select USB_ARCH_HAS_OHCI
787 select USB_ARCH_HAS_EHCI
788 select HOLES_IN_ZONE
789 help
790 This option supports all of the Octeon reference boards from Cavium
791 Networks. It builds a kernel that dynamically determines the Octeon
792 CPU type and supports all known board reference implementations.
793 Some of the supported boards are:
794 EBT3000
795 EBH3000
796 EBH3100
797 Thunder
798 Kodama
799 Hikari
800 Say Y here for most Octeon reference boards.
801
802 config NLM_XLR_BOARD
803 bool "Netlogic XLR/XLS based systems"
804 depends on EXPERIMENTAL
805 select BOOT_ELF32
806 select NLM_COMMON
807 select SYS_HAS_CPU_XLR
808 select SYS_SUPPORTS_SMP
809 select HW_HAS_PCI
810 select SWAP_IO_SPACE
811 select SYS_SUPPORTS_32BIT_KERNEL
812 select SYS_SUPPORTS_64BIT_KERNEL
813 select 64BIT_PHYS_ADDR
814 select SYS_SUPPORTS_BIG_ENDIAN
815 select SYS_SUPPORTS_HIGHMEM
816 select DMA_COHERENT
817 select NR_CPUS_DEFAULT_32
818 select CEVT_R4K
819 select CSRC_R4K
820 select IRQ_CPU
821 select ARCH_SUPPORTS_MSI
822 select ZONE_DMA if 64BIT
823 select SYNC_R4K
824 select SYS_HAS_EARLY_PRINTK
825 select USB_ARCH_HAS_OHCI if USB_SUPPORT
826 select USB_ARCH_HAS_EHCI if USB_SUPPORT
827 help
828 Support for systems based on Netlogic XLR and XLS processors.
829 Say Y here if you have a XLR or XLS based board.
830
831 config NLM_XLP_BOARD
832 bool "Netlogic XLP based systems"
833 depends on EXPERIMENTAL
834 select BOOT_ELF32
835 select NLM_COMMON
836 select SYS_HAS_CPU_XLP
837 select SYS_SUPPORTS_SMP
838 select HW_HAS_PCI
839 select SYS_SUPPORTS_32BIT_KERNEL
840 select SYS_SUPPORTS_64BIT_KERNEL
841 select 64BIT_PHYS_ADDR
842 select SYS_SUPPORTS_BIG_ENDIAN
843 select SYS_SUPPORTS_LITTLE_ENDIAN
844 select SYS_SUPPORTS_HIGHMEM
845 select DMA_COHERENT
846 select NR_CPUS_DEFAULT_32
847 select CEVT_R4K
848 select CSRC_R4K
849 select IRQ_CPU
850 select ZONE_DMA if 64BIT
851 select SYNC_R4K
852 select SYS_HAS_EARLY_PRINTK
853 select USE_OF
854 help
855 This board is based on Netlogic XLP Processor.
856 Say Y here if you have a XLP based board.
857
858 endchoice
859
860 source "arch/mips/alchemy/Kconfig"
861 source "arch/mips/ath79/Kconfig"
862 source "arch/mips/bcm47xx/Kconfig"
863 source "arch/mips/bcm63xx/Kconfig"
864 source "arch/mips/jazz/Kconfig"
865 source "arch/mips/jz4740/Kconfig"
866 source "arch/mips/lantiq/Kconfig"
867 source "arch/mips/lasat/Kconfig"
868 source "arch/mips/pmc-sierra/Kconfig"
869 source "arch/mips/powertv/Kconfig"
870 source "arch/mips/sgi-ip27/Kconfig"
871 source "arch/mips/sibyte/Kconfig"
872 source "arch/mips/txx9/Kconfig"
873 source "arch/mips/vr41xx/Kconfig"
874 source "arch/mips/cavium-octeon/Kconfig"
875 source "arch/mips/loongson/Kconfig"
876 source "arch/mips/loongson1/Kconfig"
877 source "arch/mips/netlogic/Kconfig"
878
879 endmenu
880
881 config RWSEM_GENERIC_SPINLOCK
882 bool
883 default y
884
885 config RWSEM_XCHGADD_ALGORITHM
886 bool
887
888 config ARCH_HAS_ILOG2_U32
889 bool
890 default n
891
892 config ARCH_HAS_ILOG2_U64
893 bool
894 default n
895
896 config GENERIC_HWEIGHT
897 bool
898 default y
899
900 config GENERIC_CALIBRATE_DELAY
901 bool
902 default y
903
904 config SCHED_OMIT_FRAME_POINTER
905 bool
906 default y
907
908 #
909 # Select some configuration options automatically based on user selections.
910 #
911 config ARC
912 bool
913
914 config ARCH_MAY_HAVE_PC_FDC
915 bool
916
917 config BOOT_RAW
918 bool
919
920 config CEVT_BCM1480
921 bool
922
923 config CEVT_DS1287
924 bool
925
926 config CEVT_GT641XX
927 bool
928
929 config CEVT_R4K_LIB
930 bool
931
932 config CEVT_R4K
933 select CEVT_R4K_LIB
934 bool
935
936 config CEVT_SB1250
937 bool
938
939 config CEVT_TXX9
940 bool
941
942 config CSRC_BCM1480
943 bool
944
945 config CSRC_IOASIC
946 bool
947
948 config CSRC_POWERTV
949 bool
950
951 config CSRC_R4K_LIB
952 bool
953
954 config CSRC_R4K
955 select CSRC_R4K_LIB
956 bool
957
958 config CSRC_SB1250
959 bool
960
961 config GPIO_TXX9
962 select GENERIC_GPIO
963 select ARCH_REQUIRE_GPIOLIB
964 bool
965
966 config CFE
967 bool
968
969 config ARCH_DMA_ADDR_T_64BIT
970 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
971
972 config DMA_COHERENT
973 bool
974
975 config DMA_NONCOHERENT
976 bool
977 select NEED_DMA_MAP_STATE
978
979 config NEED_DMA_MAP_STATE
980 bool
981
982 config SYS_HAS_EARLY_PRINTK
983 bool
984
985 config HOTPLUG_CPU
986 bool "Support for hot-pluggable CPUs"
987 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
988 help
989 Say Y here to allow turning CPUs off and on. CPUs can be
990 controlled through /sys/devices/system/cpu.
991 (Note: power management support will enable this option
992 automatically on SMP systems. )
993 Say N if you want to disable CPU hotplug.
994
995 config SYS_SUPPORTS_HOTPLUG_CPU
996 bool
997
998 config I8259
999 bool
1000
1001 config MIPS_BONITO64
1002 bool
1003
1004 config MIPS_MSC
1005 bool
1006
1007 config MIPS_NILE4
1008 bool
1009
1010 config MIPS_DISABLE_OBSOLETE_IDE
1011 bool
1012
1013 config SYNC_R4K
1014 bool
1015
1016 config MIPS_MACHINE
1017 def_bool n
1018
1019 config NO_IOPORT
1020 def_bool n
1021
1022 config GENERIC_ISA_DMA
1023 bool
1024 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1025 select ISA_DMA_API
1026
1027 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1028 bool
1029 select GENERIC_ISA_DMA
1030
1031 config ISA_DMA_API
1032 bool
1033
1034 config GENERIC_GPIO
1035 bool
1036
1037 config HOLES_IN_ZONE
1038 bool
1039
1040 #
1041 # Endianness selection. Sufficiently obscure so many users don't know what to
1042 # answer,so we try hard to limit the available choices. Also the use of a
1043 # choice statement should be more obvious to the user.
1044 #
1045 choice
1046 prompt "Endianness selection"
1047 help
1048 Some MIPS machines can be configured for either little or big endian
1049 byte order. These modes require different kernels and a different
1050 Linux distribution. In general there is one preferred byteorder for a
1051 particular system but some systems are just as commonly used in the
1052 one or the other endianness.
1053
1054 config CPU_BIG_ENDIAN
1055 bool "Big endian"
1056 depends on SYS_SUPPORTS_BIG_ENDIAN
1057
1058 config CPU_LITTLE_ENDIAN
1059 bool "Little endian"
1060 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1061 help
1062
1063 endchoice
1064
1065 config EXPORT_UASM
1066 bool
1067
1068 config SYS_SUPPORTS_APM_EMULATION
1069 bool
1070
1071 config SYS_SUPPORTS_BIG_ENDIAN
1072 bool
1073
1074 config SYS_SUPPORTS_LITTLE_ENDIAN
1075 bool
1076
1077 config SYS_SUPPORTS_HUGETLBFS
1078 bool
1079 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1080 default y
1081
1082 config IRQ_CPU
1083 bool
1084
1085 config IRQ_CPU_RM7K
1086 bool
1087
1088 config IRQ_CPU_RM9K
1089 bool
1090
1091 config IRQ_MSP_SLP
1092 bool
1093
1094 config IRQ_MSP_CIC
1095 bool
1096
1097 config IRQ_TXX9
1098 bool
1099
1100 config IRQ_GT641XX
1101 bool
1102
1103 config IRQ_GIC
1104 bool
1105
1106 config MIPS_BOARDS_GEN
1107 bool
1108
1109 config PCI_GT64XXX_PCI0
1110 bool
1111
1112 config NO_EXCEPT_FILL
1113 bool
1114
1115 config MIPS_RM9122
1116 bool
1117 select SERIAL_RM9000
1118
1119 config SOC_EMMA2RH
1120 bool
1121 select CEVT_R4K
1122 select CSRC_R4K
1123 select DMA_NONCOHERENT
1124 select IRQ_CPU
1125 select SWAP_IO_SPACE
1126 select SYS_HAS_CPU_R5500
1127 select SYS_SUPPORTS_32BIT_KERNEL
1128 select SYS_SUPPORTS_64BIT_KERNEL
1129 select SYS_SUPPORTS_BIG_ENDIAN
1130
1131 config SOC_PNX833X
1132 bool
1133 select CEVT_R4K
1134 select CSRC_R4K
1135 select IRQ_CPU
1136 select DMA_NONCOHERENT
1137 select SYS_HAS_CPU_MIPS32_R2
1138 select SYS_SUPPORTS_32BIT_KERNEL
1139 select SYS_SUPPORTS_LITTLE_ENDIAN
1140 select SYS_SUPPORTS_BIG_ENDIAN
1141 select GENERIC_GPIO
1142 select CPU_MIPSR2_IRQ_VI
1143
1144 config SOC_PNX8335
1145 bool
1146 select SOC_PNX833X
1147
1148 config PNX8550
1149 bool
1150 select SOC_PNX8550
1151
1152 config SOC_PNX8550
1153 bool
1154 select DMA_NONCOHERENT
1155 select HW_HAS_PCI
1156 select SYS_HAS_CPU_MIPS32_R1
1157 select SYS_HAS_EARLY_PRINTK
1158 select SYS_SUPPORTS_32BIT_KERNEL
1159 select GENERIC_GPIO
1160
1161 config SWAP_IO_SPACE
1162 bool
1163
1164 config SERIAL_RM9000
1165 bool
1166
1167 config SGI_HAS_INDYDOG
1168 bool
1169
1170 config SGI_HAS_HAL2
1171 bool
1172
1173 config SGI_HAS_SEEQ
1174 bool
1175
1176 config SGI_HAS_WD93
1177 bool
1178
1179 config SGI_HAS_ZILOG
1180 bool
1181
1182 config SGI_HAS_I8042
1183 bool
1184
1185 config DEFAULT_SGI_PARTITION
1186 bool
1187
1188 config ARC32
1189 bool
1190
1191 config SNIPROM
1192 bool
1193
1194 config BOOT_ELF32
1195 bool
1196
1197 config MIPS_L1_CACHE_SHIFT
1198 int
1199 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
1200 default "6" if MIPS_CPU_SCACHE
1201 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1202 default "5"
1203
1204 config HAVE_STD_PC_SERIAL_PORT
1205 bool
1206
1207 config ARC_CONSOLE
1208 bool "ARC console support"
1209 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1210
1211 config ARC_MEMORY
1212 bool
1213 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1214 default y
1215
1216 config ARC_PROMLIB
1217 bool
1218 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1219 default y
1220
1221 config ARC64
1222 bool
1223
1224 config BOOT_ELF64
1225 bool
1226
1227 menu "CPU selection"
1228
1229 choice
1230 prompt "CPU type"
1231 default CPU_R4X00
1232
1233 config CPU_LOONGSON2E
1234 bool "Loongson 2E"
1235 depends on SYS_HAS_CPU_LOONGSON2E
1236 select CPU_LOONGSON2
1237 help
1238 The Loongson 2E processor implements the MIPS III instruction set
1239 with many extensions.
1240
1241 It has an internal FPGA northbridge, which is compatible to
1242 bonito64.
1243
1244 config CPU_LOONGSON2F
1245 bool "Loongson 2F"
1246 depends on SYS_HAS_CPU_LOONGSON2F
1247 select CPU_LOONGSON2
1248 select GENERIC_GPIO
1249 select ARCH_REQUIRE_GPIOLIB
1250 help
1251 The Loongson 2F processor implements the MIPS III instruction set
1252 with many extensions.
1253
1254 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1255 have a similar programming interface with FPGA northbridge used in
1256 Loongson2E.
1257
1258 config CPU_LOONGSON1B
1259 bool "Loongson 1B"
1260 depends on SYS_HAS_CPU_LOONGSON1B
1261 select CPU_LOONGSON1
1262 help
1263 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1264 release 2 instruction set.
1265
1266 config CPU_MIPS32_R1
1267 bool "MIPS32 Release 1"
1268 depends on SYS_HAS_CPU_MIPS32_R1
1269 select CPU_HAS_PREFETCH
1270 select CPU_SUPPORTS_32BIT_KERNEL
1271 select CPU_SUPPORTS_HIGHMEM
1272 help
1273 Choose this option to build a kernel for release 1 or later of the
1274 MIPS32 architecture. Most modern embedded systems with a 32-bit
1275 MIPS processor are based on a MIPS32 processor. If you know the
1276 specific type of processor in your system, choose those that one
1277 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1278 Release 2 of the MIPS32 architecture is available since several
1279 years so chances are you even have a MIPS32 Release 2 processor
1280 in which case you should choose CPU_MIPS32_R2 instead for better
1281 performance.
1282
1283 config CPU_MIPS32_R2
1284 bool "MIPS32 Release 2"
1285 depends on SYS_HAS_CPU_MIPS32_R2
1286 select CPU_HAS_PREFETCH
1287 select CPU_SUPPORTS_32BIT_KERNEL
1288 select CPU_SUPPORTS_HIGHMEM
1289 help
1290 Choose this option to build a kernel for release 2 or later of the
1291 MIPS32 architecture. Most modern embedded systems with a 32-bit
1292 MIPS processor are based on a MIPS32 processor. If you know the
1293 specific type of processor in your system, choose those that one
1294 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1295
1296 config CPU_MIPS64_R1
1297 bool "MIPS64 Release 1"
1298 depends on SYS_HAS_CPU_MIPS64_R1
1299 select CPU_HAS_PREFETCH
1300 select CPU_SUPPORTS_32BIT_KERNEL
1301 select CPU_SUPPORTS_64BIT_KERNEL
1302 select CPU_SUPPORTS_HIGHMEM
1303 select CPU_SUPPORTS_HUGEPAGES
1304 help
1305 Choose this option to build a kernel for release 1 or later of the
1306 MIPS64 architecture. Many modern embedded systems with a 64-bit
1307 MIPS processor are based on a MIPS64 processor. If you know the
1308 specific type of processor in your system, choose those that one
1309 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1310 Release 2 of the MIPS64 architecture is available since several
1311 years so chances are you even have a MIPS64 Release 2 processor
1312 in which case you should choose CPU_MIPS64_R2 instead for better
1313 performance.
1314
1315 config CPU_MIPS64_R2
1316 bool "MIPS64 Release 2"
1317 depends on SYS_HAS_CPU_MIPS64_R2
1318 select CPU_HAS_PREFETCH
1319 select CPU_SUPPORTS_32BIT_KERNEL
1320 select CPU_SUPPORTS_64BIT_KERNEL
1321 select CPU_SUPPORTS_HIGHMEM
1322 select CPU_SUPPORTS_HUGEPAGES
1323 help
1324 Choose this option to build a kernel for release 2 or later of the
1325 MIPS64 architecture. Many modern embedded systems with a 64-bit
1326 MIPS processor are based on a MIPS64 processor. If you know the
1327 specific type of processor in your system, choose those that one
1328 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1329
1330 config CPU_R3000
1331 bool "R3000"
1332 depends on SYS_HAS_CPU_R3000
1333 select CPU_HAS_WB
1334 select CPU_SUPPORTS_32BIT_KERNEL
1335 select CPU_SUPPORTS_HIGHMEM
1336 help
1337 Please make sure to pick the right CPU type. Linux/MIPS is not
1338 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1339 *not* work on R4000 machines and vice versa. However, since most
1340 of the supported machines have an R4000 (or similar) CPU, R4x00
1341 might be a safe bet. If the resulting kernel does not work,
1342 try to recompile with R3000.
1343
1344 config CPU_TX39XX
1345 bool "R39XX"
1346 depends on SYS_HAS_CPU_TX39XX
1347 select CPU_SUPPORTS_32BIT_KERNEL
1348
1349 config CPU_VR41XX
1350 bool "R41xx"
1351 depends on SYS_HAS_CPU_VR41XX
1352 select CPU_SUPPORTS_32BIT_KERNEL
1353 select CPU_SUPPORTS_64BIT_KERNEL
1354 help
1355 The options selects support for the NEC VR4100 series of processors.
1356 Only choose this option if you have one of these processors as a
1357 kernel built with this option will not run on any other type of
1358 processor or vice versa.
1359
1360 config CPU_R4300
1361 bool "R4300"
1362 depends on SYS_HAS_CPU_R4300
1363 select CPU_SUPPORTS_32BIT_KERNEL
1364 select CPU_SUPPORTS_64BIT_KERNEL
1365 help
1366 MIPS Technologies R4300-series processors.
1367
1368 config CPU_R4X00
1369 bool "R4x00"
1370 depends on SYS_HAS_CPU_R4X00
1371 select CPU_SUPPORTS_32BIT_KERNEL
1372 select CPU_SUPPORTS_64BIT_KERNEL
1373 help
1374 MIPS Technologies R4000-series processors other than 4300, including
1375 the R4000, R4400, R4600, and 4700.
1376
1377 config CPU_TX49XX
1378 bool "R49XX"
1379 depends on SYS_HAS_CPU_TX49XX
1380 select CPU_HAS_PREFETCH
1381 select CPU_SUPPORTS_32BIT_KERNEL
1382 select CPU_SUPPORTS_64BIT_KERNEL
1383
1384 config CPU_R5000
1385 bool "R5000"
1386 depends on SYS_HAS_CPU_R5000
1387 select CPU_SUPPORTS_32BIT_KERNEL
1388 select CPU_SUPPORTS_64BIT_KERNEL
1389 help
1390 MIPS Technologies R5000-series processors other than the Nevada.
1391
1392 config CPU_R5432
1393 bool "R5432"
1394 depends on SYS_HAS_CPU_R5432
1395 select CPU_SUPPORTS_32BIT_KERNEL
1396 select CPU_SUPPORTS_64BIT_KERNEL
1397
1398 config CPU_R5500
1399 bool "R5500"
1400 depends on SYS_HAS_CPU_R5500
1401 select CPU_SUPPORTS_32BIT_KERNEL
1402 select CPU_SUPPORTS_64BIT_KERNEL
1403 select CPU_SUPPORTS_HUGEPAGES
1404 help
1405 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1406 instruction set.
1407
1408 config CPU_R6000
1409 bool "R6000"
1410 depends on EXPERIMENTAL
1411 depends on SYS_HAS_CPU_R6000
1412 select CPU_SUPPORTS_32BIT_KERNEL
1413 help
1414 MIPS Technologies R6000 and R6000A series processors. Note these
1415 processors are extremely rare and the support for them is incomplete.
1416
1417 config CPU_NEVADA
1418 bool "RM52xx"
1419 depends on SYS_HAS_CPU_NEVADA
1420 select CPU_SUPPORTS_32BIT_KERNEL
1421 select CPU_SUPPORTS_64BIT_KERNEL
1422 help
1423 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1424
1425 config CPU_R8000
1426 bool "R8000"
1427 depends on EXPERIMENTAL
1428 depends on SYS_HAS_CPU_R8000
1429 select CPU_HAS_PREFETCH
1430 select CPU_SUPPORTS_64BIT_KERNEL
1431 help
1432 MIPS Technologies R8000 processors. Note these processors are
1433 uncommon and the support for them is incomplete.
1434
1435 config CPU_R10000
1436 bool "R10000"
1437 depends on SYS_HAS_CPU_R10000
1438 select CPU_HAS_PREFETCH
1439 select CPU_SUPPORTS_32BIT_KERNEL
1440 select CPU_SUPPORTS_64BIT_KERNEL
1441 select CPU_SUPPORTS_HIGHMEM
1442 help
1443 MIPS Technologies R10000-series processors.
1444
1445 config CPU_RM7000
1446 bool "RM7000"
1447 depends on SYS_HAS_CPU_RM7000
1448 select CPU_HAS_PREFETCH
1449 select CPU_SUPPORTS_32BIT_KERNEL
1450 select CPU_SUPPORTS_64BIT_KERNEL
1451 select CPU_SUPPORTS_HIGHMEM
1452
1453 config CPU_RM9000
1454 bool "RM9000"
1455 depends on SYS_HAS_CPU_RM9000
1456 select CPU_HAS_PREFETCH
1457 select CPU_SUPPORTS_32BIT_KERNEL
1458 select CPU_SUPPORTS_64BIT_KERNEL
1459 select CPU_SUPPORTS_HIGHMEM
1460 select WEAK_ORDERING
1461
1462 config CPU_SB1
1463 bool "SB1"
1464 depends on SYS_HAS_CPU_SB1
1465 select CPU_SUPPORTS_32BIT_KERNEL
1466 select CPU_SUPPORTS_64BIT_KERNEL
1467 select CPU_SUPPORTS_HIGHMEM
1468 select WEAK_ORDERING
1469
1470 config CPU_CAVIUM_OCTEON
1471 bool "Cavium Octeon processor"
1472 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1473 select ARCH_SPARSEMEM_ENABLE
1474 select CPU_HAS_PREFETCH
1475 select CPU_SUPPORTS_64BIT_KERNEL
1476 select SYS_SUPPORTS_SMP
1477 select NR_CPUS_DEFAULT_16
1478 select WEAK_ORDERING
1479 select CPU_SUPPORTS_HIGHMEM
1480 select CPU_SUPPORTS_HUGEPAGES
1481 select LIBFDT
1482 select USE_OF
1483 help
1484 The Cavium Octeon processor is a highly integrated chip containing
1485 many ethernet hardware widgets for networking tasks. The processor
1486 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1487 Full details can be found at http://www.caviumnetworks.com.
1488
1489 config CPU_BMIPS3300
1490 bool "BMIPS3300"
1491 depends on SYS_HAS_CPU_BMIPS3300
1492 select CPU_BMIPS
1493 help
1494 Broadcom BMIPS3300 processors.
1495
1496 config CPU_BMIPS4350
1497 bool "BMIPS4350"
1498 depends on SYS_HAS_CPU_BMIPS4350
1499 select CPU_BMIPS
1500 select SYS_SUPPORTS_SMP
1501 select SYS_SUPPORTS_HOTPLUG_CPU
1502 help
1503 Broadcom BMIPS4350 ("VIPER") processors.
1504
1505 config CPU_BMIPS4380
1506 bool "BMIPS4380"
1507 depends on SYS_HAS_CPU_BMIPS4380
1508 select CPU_BMIPS
1509 select SYS_SUPPORTS_SMP
1510 select SYS_SUPPORTS_HOTPLUG_CPU
1511 help
1512 Broadcom BMIPS4380 processors.
1513
1514 config CPU_BMIPS5000
1515 bool "BMIPS5000"
1516 depends on SYS_HAS_CPU_BMIPS5000
1517 select CPU_BMIPS
1518 select CPU_SUPPORTS_HIGHMEM
1519 select MIPS_CPU_SCACHE
1520 select SYS_SUPPORTS_SMP
1521 select SYS_SUPPORTS_HOTPLUG_CPU
1522 help
1523 Broadcom BMIPS5000 processors.
1524
1525 config CPU_XLR
1526 bool "Netlogic XLR SoC"
1527 depends on SYS_HAS_CPU_XLR
1528 select CPU_SUPPORTS_32BIT_KERNEL
1529 select CPU_SUPPORTS_64BIT_KERNEL
1530 select CPU_SUPPORTS_HIGHMEM
1531 select WEAK_ORDERING
1532 select WEAK_REORDERING_BEYOND_LLSC
1533 select CPU_SUPPORTS_HUGEPAGES
1534 help
1535 Netlogic Microsystems XLR/XLS processors.
1536
1537 config CPU_XLP
1538 bool "Netlogic XLP SoC"
1539 depends on SYS_HAS_CPU_XLP
1540 select CPU_SUPPORTS_32BIT_KERNEL
1541 select CPU_SUPPORTS_64BIT_KERNEL
1542 select CPU_SUPPORTS_HIGHMEM
1543 select CPU_HAS_LLSC
1544 select WEAK_ORDERING
1545 select WEAK_REORDERING_BEYOND_LLSC
1546 select CPU_HAS_PREFETCH
1547 help
1548 Netlogic Microsystems XLP processors.
1549 endchoice
1550
1551 if CPU_LOONGSON2F
1552 config CPU_NOP_WORKAROUNDS
1553 bool
1554
1555 config CPU_JUMP_WORKAROUNDS
1556 bool
1557
1558 config CPU_LOONGSON2F_WORKAROUNDS
1559 bool "Loongson 2F Workarounds"
1560 default y
1561 select CPU_NOP_WORKAROUNDS
1562 select CPU_JUMP_WORKAROUNDS
1563 help
1564 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1565 require workarounds. Without workarounds the system may hang
1566 unexpectedly. For more information please refer to the gas
1567 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1568
1569 Loongson 2F03 and later have fixed these issues and no workarounds
1570 are needed. The workarounds have no significant side effect on them
1571 but may decrease the performance of the system so this option should
1572 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1573 systems.
1574
1575 If unsure, please say Y.
1576 endif # CPU_LOONGSON2F
1577
1578 config SYS_SUPPORTS_ZBOOT
1579 bool
1580 select HAVE_KERNEL_GZIP
1581 select HAVE_KERNEL_BZIP2
1582 select HAVE_KERNEL_LZMA
1583 select HAVE_KERNEL_LZO
1584
1585 config SYS_SUPPORTS_ZBOOT_UART16550
1586 bool
1587 select SYS_SUPPORTS_ZBOOT
1588
1589 config CPU_LOONGSON2
1590 bool
1591 select CPU_SUPPORTS_32BIT_KERNEL
1592 select CPU_SUPPORTS_64BIT_KERNEL
1593 select CPU_SUPPORTS_HIGHMEM
1594
1595 config CPU_LOONGSON1
1596 bool
1597 select CPU_MIPS32
1598 select CPU_MIPSR2
1599 select CPU_HAS_PREFETCH
1600 select CPU_SUPPORTS_32BIT_KERNEL
1601 select CPU_SUPPORTS_HIGHMEM
1602
1603 config CPU_BMIPS
1604 bool
1605 select CPU_MIPS32
1606 select CPU_SUPPORTS_32BIT_KERNEL
1607 select DMA_NONCOHERENT
1608 select IRQ_CPU
1609 select SWAP_IO_SPACE
1610 select WEAK_ORDERING
1611
1612 config SYS_HAS_CPU_LOONGSON2E
1613 bool
1614
1615 config SYS_HAS_CPU_LOONGSON2F
1616 bool
1617 select CPU_SUPPORTS_CPUFREQ
1618 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1619 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1620
1621 config SYS_HAS_CPU_LOONGSON1B
1622 bool
1623
1624 config SYS_HAS_CPU_MIPS32_R1
1625 bool
1626
1627 config SYS_HAS_CPU_MIPS32_R2
1628 bool
1629
1630 config SYS_HAS_CPU_MIPS64_R1
1631 bool
1632
1633 config SYS_HAS_CPU_MIPS64_R2
1634 bool
1635
1636 config SYS_HAS_CPU_R3000
1637 bool
1638
1639 config SYS_HAS_CPU_TX39XX
1640 bool
1641
1642 config SYS_HAS_CPU_VR41XX
1643 bool
1644
1645 config SYS_HAS_CPU_R4300
1646 bool
1647
1648 config SYS_HAS_CPU_R4X00
1649 bool
1650
1651 config SYS_HAS_CPU_TX49XX
1652 bool
1653
1654 config SYS_HAS_CPU_R5000
1655 bool
1656
1657 config SYS_HAS_CPU_R5432
1658 bool
1659
1660 config SYS_HAS_CPU_R5500
1661 bool
1662
1663 config SYS_HAS_CPU_R6000
1664 bool
1665
1666 config SYS_HAS_CPU_NEVADA
1667 bool
1668
1669 config SYS_HAS_CPU_R8000
1670 bool
1671
1672 config SYS_HAS_CPU_R10000
1673 bool
1674
1675 config SYS_HAS_CPU_RM7000
1676 bool
1677
1678 config SYS_HAS_CPU_RM9000
1679 bool
1680
1681 config SYS_HAS_CPU_SB1
1682 bool
1683
1684 config SYS_HAS_CPU_CAVIUM_OCTEON
1685 bool
1686
1687 config SYS_HAS_CPU_BMIPS3300
1688 bool
1689
1690 config SYS_HAS_CPU_BMIPS4350
1691 bool
1692
1693 config SYS_HAS_CPU_BMIPS4380
1694 bool
1695
1696 config SYS_HAS_CPU_BMIPS5000
1697 bool
1698
1699 config SYS_HAS_CPU_XLR
1700 bool
1701
1702 config SYS_HAS_CPU_XLP
1703 bool
1704
1705 #
1706 # CPU may reorder R->R, R->W, W->R, W->W
1707 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1708 #
1709 config WEAK_ORDERING
1710 bool
1711
1712 #
1713 # CPU may reorder reads and writes beyond LL/SC
1714 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1715 #
1716 config WEAK_REORDERING_BEYOND_LLSC
1717 bool
1718 endmenu
1719
1720 #
1721 # These two indicate any level of the MIPS32 and MIPS64 architecture
1722 #
1723 config CPU_MIPS32
1724 bool
1725 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1726
1727 config CPU_MIPS64
1728 bool
1729 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1730
1731 #
1732 # These two indicate the revision of the architecture, either Release 1 or Release 2
1733 #
1734 config CPU_MIPSR1
1735 bool
1736 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1737
1738 config CPU_MIPSR2
1739 bool
1740 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1741
1742 config SYS_SUPPORTS_32BIT_KERNEL
1743 bool
1744 config SYS_SUPPORTS_64BIT_KERNEL
1745 bool
1746 config CPU_SUPPORTS_32BIT_KERNEL
1747 bool
1748 config CPU_SUPPORTS_64BIT_KERNEL
1749 bool
1750 config CPU_SUPPORTS_CPUFREQ
1751 bool
1752 config CPU_SUPPORTS_ADDRWINCFG
1753 bool
1754 config CPU_SUPPORTS_HUGEPAGES
1755 bool
1756 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1757 bool
1758 config MIPS_PGD_C0_CONTEXT
1759 bool
1760 default y if 64BIT && CPU_MIPSR2
1761
1762 #
1763 # Set to y for ptrace access to watch registers.
1764 #
1765 config HARDWARE_WATCHPOINTS
1766 bool
1767 default y if CPU_MIPSR1 || CPU_MIPSR2
1768
1769 menu "Kernel type"
1770
1771 choice
1772 prompt "Kernel code model"
1773 help
1774 You should only select this option if you have a workload that
1775 actually benefits from 64-bit processing or if your machine has
1776 large memory. You will only be presented a single option in this
1777 menu if your system does not support both 32-bit and 64-bit kernels.
1778
1779 config 32BIT
1780 bool "32-bit kernel"
1781 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1782 select TRAD_SIGNALS
1783 help
1784 Select this option if you want to build a 32-bit kernel.
1785 config 64BIT
1786 bool "64-bit kernel"
1787 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1788 select HAVE_SYSCALL_WRAPPERS
1789 help
1790 Select this option if you want to build a 64-bit kernel.
1791
1792 endchoice
1793
1794 choice
1795 prompt "Kernel page size"
1796 default PAGE_SIZE_4KB
1797
1798 config PAGE_SIZE_4KB
1799 bool "4kB"
1800 depends on !CPU_LOONGSON2
1801 help
1802 This option select the standard 4kB Linux page size. On some
1803 R3000-family processors this is the only available page size. Using
1804 4kB page size will minimize memory consumption and is therefore
1805 recommended for low memory systems.
1806
1807 config PAGE_SIZE_8KB
1808 bool "8kB"
1809 depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON
1810 help
1811 Using 8kB page size will result in higher performance kernel at
1812 the price of higher memory consumption. This option is available
1813 only on R8000 and cnMIPS processors. Note that you will need a
1814 suitable Linux distribution to support this.
1815
1816 config PAGE_SIZE_16KB
1817 bool "16kB"
1818 depends on !CPU_R3000 && !CPU_TX39XX
1819 help
1820 Using 16kB page size will result in higher performance kernel at
1821 the price of higher memory consumption. This option is available on
1822 all non-R3000 family processors. Note that you will need a suitable
1823 Linux distribution to support this.
1824
1825 config PAGE_SIZE_32KB
1826 bool "32kB"
1827 depends on CPU_CAVIUM_OCTEON
1828 help
1829 Using 32kB page size will result in higher performance kernel at
1830 the price of higher memory consumption. This option is available
1831 only on cnMIPS cores. Note that you will need a suitable Linux
1832 distribution to support this.
1833
1834 config PAGE_SIZE_64KB
1835 bool "64kB"
1836 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1837 help
1838 Using 64kB page size will result in higher performance kernel at
1839 the price of higher memory consumption. This option is available on
1840 all non-R3000 family processor. Not that at the time of this
1841 writing this option is still high experimental.
1842
1843 endchoice
1844
1845 config FORCE_MAX_ZONEORDER
1846 int "Maximum zone order"
1847 range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
1848 default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
1849 range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
1850 default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
1851 range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
1852 default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
1853 range 11 64
1854 default "11"
1855 help
1856 The kernel memory allocator divides physically contiguous memory
1857 blocks into "zones", where each zone is a power of two number of
1858 pages. This option selects the largest power of two that the kernel
1859 keeps in the memory allocator. If you need to allocate very large
1860 blocks of physically contiguous memory, then you may need to
1861 increase this value.
1862
1863 This config option is actually maximum order plus one. For example,
1864 a value of 11 means that the largest free memory block is 2^10 pages.
1865
1866 The page size is not necessarily 4KB. Keep this in mind
1867 when choosing a value for this option.
1868
1869 config BOARD_SCACHE
1870 bool
1871
1872 config IP22_CPU_SCACHE
1873 bool
1874 select BOARD_SCACHE
1875
1876 #
1877 # Support for a MIPS32 / MIPS64 style S-caches
1878 #
1879 config MIPS_CPU_SCACHE
1880 bool
1881 select BOARD_SCACHE
1882
1883 config R5000_CPU_SCACHE
1884 bool
1885 select BOARD_SCACHE
1886
1887 config RM7000_CPU_SCACHE
1888 bool
1889 select BOARD_SCACHE
1890
1891 config SIBYTE_DMA_PAGEOPS
1892 bool "Use DMA to clear/copy pages"
1893 depends on CPU_SB1
1894 help
1895 Instead of using the CPU to zero and copy pages, use a Data Mover
1896 channel. These DMA channels are otherwise unused by the standard
1897 SiByte Linux port. Seems to give a small performance benefit.
1898
1899 config CPU_HAS_PREFETCH
1900 bool
1901
1902 config CPU_GENERIC_DUMP_TLB
1903 bool
1904 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1905
1906 config CPU_R4K_FPU
1907 bool
1908 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1909
1910 config CPU_R4K_CACHE_TLB
1911 bool
1912 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1913
1914 choice
1915 prompt "MIPS MT options"
1916
1917 config MIPS_MT_DISABLED
1918 bool "Disable multithreading support."
1919 help
1920 Use this option if your workload can't take advantage of
1921 MIPS hardware multithreading support. On systems that don't have
1922 the option of an MT-enabled processor this option will be the only
1923 option in this menu.
1924
1925 config MIPS_MT_SMP
1926 bool "Use 1 TC on each available VPE for SMP"
1927 depends on SYS_SUPPORTS_MULTITHREADING
1928 select CPU_MIPSR2_IRQ_VI
1929 select CPU_MIPSR2_IRQ_EI
1930 select MIPS_MT
1931 select NR_CPUS_DEFAULT_2
1932 select SMP
1933 select SYS_SUPPORTS_SCHED_SMT if SMP
1934 select SYS_SUPPORTS_SMP
1935 select SMP_UP
1936 select MIPS_PERF_SHARED_TC_COUNTERS
1937 help
1938 This is a kernel model which is known a VSMP but lately has been
1939 marketesed into SMVP.
1940 Virtual SMP uses the processor's VPEs to implement virtual
1941 processors. In currently available configuration of the 34K processor
1942 this allows for a dual processor. Both processors will share the same
1943 primary caches; each will obtain the half of the TLB for it's own
1944 exclusive use. For a layman this model can be described as similar to
1945 what Intel calls Hyperthreading.
1946
1947 For further information see http://www.linux-mips.org/wiki/34K#VSMP
1948
1949 config MIPS_MT_SMTC
1950 bool "SMTC: Use all TCs on all VPEs for SMP"
1951 depends on CPU_MIPS32_R2
1952 #depends on CPU_MIPS64_R2 # once there is hardware ...
1953 depends on SYS_SUPPORTS_MULTITHREADING
1954 select CPU_MIPSR2_IRQ_VI
1955 select CPU_MIPSR2_IRQ_EI
1956 select MIPS_MT
1957 select NR_CPUS_DEFAULT_8
1958 select SMP
1959 select SYS_SUPPORTS_SMP
1960 select SMP_UP
1961 help
1962 This is a kernel model which is known a SMTC or lately has been
1963 marketesed into SMVP.
1964 is presenting the available TC's of the core as processors to Linux.
1965 On currently available 34K processors this means a Linux system will
1966 see up to 5 processors. The implementation of the SMTC kernel differs
1967 significantly from VSMP and cannot efficiently coexist in the same
1968 kernel binary so the choice between VSMP and SMTC is a compile time
1969 decision.
1970
1971 For further information see http://www.linux-mips.org/wiki/34K#SMTC
1972
1973 endchoice
1974
1975 config MIPS_MT
1976 bool
1977
1978 config SCHED_SMT
1979 bool "SMT (multithreading) scheduler support"
1980 depends on SYS_SUPPORTS_SCHED_SMT
1981 default n
1982 help
1983 SMT scheduler support improves the CPU scheduler's decision making
1984 when dealing with MIPS MT enabled cores at a cost of slightly
1985 increased overhead in some places. If unsure say N here.
1986
1987 config SYS_SUPPORTS_SCHED_SMT
1988 bool
1989
1990 config SYS_SUPPORTS_MULTITHREADING
1991 bool
1992
1993 config MIPS_MT_FPAFF
1994 bool "Dynamic FPU affinity for FP-intensive threads"
1995 default y
1996 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1997
1998 config MIPS_VPE_LOADER
1999 bool "VPE loader support."
2000 depends on SYS_SUPPORTS_MULTITHREADING
2001 select CPU_MIPSR2_IRQ_VI
2002 select CPU_MIPSR2_IRQ_EI
2003 select MIPS_MT
2004 help
2005 Includes a loader for loading an elf relocatable object
2006 onto another VPE and running it.
2007
2008 config MIPS_MT_SMTC_IM_BACKSTOP
2009 bool "Use per-TC register bits as backstop for inhibited IM bits"
2010 depends on MIPS_MT_SMTC
2011 default n
2012 help
2013 To support multiple TC microthreads acting as "CPUs" within
2014 a VPE, VPE-wide interrupt mask bits must be specially manipulated
2015 during interrupt handling. To support legacy drivers and interrupt
2016 controller management code, SMTC has a "backstop" to track and
2017 if necessary restore the interrupt mask. This has some performance
2018 impact on interrupt service overhead.
2019
2020 config MIPS_MT_SMTC_IRQAFF
2021 bool "Support IRQ affinity API"
2022 depends on MIPS_MT_SMTC
2023 default n
2024 help
2025 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
2026 for SMTC Linux kernel. Requires platform support, of which
2027 an example can be found in the MIPS kernel i8259 and Malta
2028 platform code. Adds some overhead to interrupt dispatch, and
2029 should be used only if you know what you are doing.
2030
2031 config MIPS_VPE_LOADER_TOM
2032 bool "Load VPE program into memory hidden from linux"
2033 depends on MIPS_VPE_LOADER
2034 default y
2035 help
2036 The loader can use memory that is present but has been hidden from
2037 Linux using the kernel command line option "mem=xxMB". It's up to
2038 you to ensure the amount you put in the option and the space your
2039 program requires is less or equal to the amount physically present.
2040
2041 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
2042 config MIPS_VPE_APSP_API
2043 bool "Enable support for AP/SP API (RTLX)"
2044 depends on MIPS_VPE_LOADER
2045 help
2046
2047 config MIPS_CMP
2048 bool "MIPS CMP framework support"
2049 depends on SYS_SUPPORTS_MIPS_CMP
2050 select SYNC_R4K
2051 select SYS_SUPPORTS_SMP
2052 select SYS_SUPPORTS_SCHED_SMT if SMP
2053 select WEAK_ORDERING
2054 default n
2055 help
2056 This is a placeholder option for the GCMP work. It will need to
2057 be handled differently...
2058
2059 config SB1_PASS_1_WORKAROUNDS
2060 bool
2061 depends on CPU_SB1_PASS_1
2062 default y
2063
2064 config SB1_PASS_2_WORKAROUNDS
2065 bool
2066 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2067 default y
2068
2069 config SB1_PASS_2_1_WORKAROUNDS
2070 bool
2071 depends on CPU_SB1 && CPU_SB1_PASS_2
2072 default y
2073
2074 config 64BIT_PHYS_ADDR
2075 bool
2076
2077 config ARCH_PHYS_ADDR_T_64BIT
2078 def_bool 64BIT_PHYS_ADDR
2079
2080 config CPU_HAS_SMARTMIPS
2081 depends on SYS_SUPPORTS_SMARTMIPS
2082 bool "Support for the SmartMIPS ASE"
2083 help
2084 SmartMIPS is a extension of the MIPS32 architecture aimed at
2085 increased security at both hardware and software level for
2086 smartcards. Enabling this option will allow proper use of the
2087 SmartMIPS instructions by Linux applications. However a kernel with
2088 this option will not work on a MIPS core without SmartMIPS core. If
2089 you don't know you probably don't have SmartMIPS and should say N
2090 here.
2091
2092 config CPU_HAS_WB
2093 bool
2094
2095 config XKS01
2096 bool
2097
2098 #
2099 # Vectored interrupt mode is an R2 feature
2100 #
2101 config CPU_MIPSR2_IRQ_VI
2102 bool
2103
2104 #
2105 # Extended interrupt mode is an R2 feature
2106 #
2107 config CPU_MIPSR2_IRQ_EI
2108 bool
2109
2110 config CPU_HAS_SYNC
2111 bool
2112 depends on !CPU_R3000
2113 default y
2114
2115 #
2116 # CPU non-features
2117 #
2118 config CPU_DADDI_WORKAROUNDS
2119 bool
2120
2121 config CPU_R4000_WORKAROUNDS
2122 bool
2123 select CPU_R4400_WORKAROUNDS
2124
2125 config CPU_R4400_WORKAROUNDS
2126 bool
2127
2128 #
2129 # - Highmem only makes sense for the 32-bit kernel.
2130 # - The current highmem code will only work properly on physically indexed
2131 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2132 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2133 # moment we protect the user and offer the highmem option only on machines
2134 # where it's known to be safe. This will not offer highmem on a few systems
2135 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2136 # indexed CPUs but we're playing safe.
2137 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2138 # know they might have memory configurations that could make use of highmem
2139 # support.
2140 #
2141 config HIGHMEM
2142 bool "High Memory Support"
2143 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
2144
2145 config CPU_SUPPORTS_HIGHMEM
2146 bool
2147
2148 config SYS_SUPPORTS_HIGHMEM
2149 bool
2150
2151 config SYS_SUPPORTS_SMARTMIPS
2152 bool
2153
2154 config ARCH_FLATMEM_ENABLE
2155 def_bool y
2156 depends on !NUMA && !CPU_LOONGSON2
2157
2158 config ARCH_DISCONTIGMEM_ENABLE
2159 bool
2160 default y if SGI_IP27
2161 help
2162 Say Y to support efficient handling of discontiguous physical memory,
2163 for architectures which are either NUMA (Non-Uniform Memory Access)
2164 or have huge holes in the physical address space for other reasons.
2165 See <file:Documentation/vm/numa> for more.
2166
2167 config ARCH_SPARSEMEM_ENABLE
2168 bool
2169 select SPARSEMEM_STATIC
2170
2171 config NUMA
2172 bool "NUMA Support"
2173 depends on SYS_SUPPORTS_NUMA
2174 help
2175 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2176 Access). This option improves performance on systems with more
2177 than two nodes; on two node systems it is generally better to
2178 leave it disabled; on single node systems disable this option
2179 disabled.
2180
2181 config SYS_SUPPORTS_NUMA
2182 bool
2183
2184 config NODES_SHIFT
2185 int
2186 default "6"
2187 depends on NEED_MULTIPLE_NODES
2188
2189 config HW_PERF_EVENTS
2190 bool "Enable hardware performance counter support for perf events"
2191 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON)
2192 default y
2193 help
2194 Enable hardware performance counter support for perf events. If
2195 disabled, perf events will use software events only.
2196
2197 source "mm/Kconfig"
2198
2199 config SMP
2200 bool "Multi-Processing support"
2201 depends on SYS_SUPPORTS_SMP
2202 select IRQ_PER_CPU
2203 select USE_GENERIC_SMP_HELPERS
2204 help
2205 This enables support for systems with more than one CPU. If you have
2206 a system with only one CPU, like most personal computers, say N. If
2207 you have a system with more than one CPU, say Y.
2208
2209 If you say N here, the kernel will run on single and multiprocessor
2210 machines, but will use only one CPU of a multiprocessor machine. If
2211 you say Y here, the kernel will run on many, but not all,
2212 singleprocessor machines. On a singleprocessor machine, the kernel
2213 will run faster if you say N here.
2214
2215 People using multiprocessor machines who say Y here should also say
2216 Y to "Enhanced Real Time Clock Support", below.
2217
2218 See also the SMP-HOWTO available at
2219 <http://www.tldp.org/docs.html#howto>.
2220
2221 If you don't know what to do here, say N.
2222
2223 config SMP_UP
2224 bool
2225
2226 config SYS_SUPPORTS_MIPS_CMP
2227 bool
2228
2229 config SYS_SUPPORTS_SMP
2230 bool
2231
2232 config NR_CPUS_DEFAULT_1
2233 bool
2234
2235 config NR_CPUS_DEFAULT_2
2236 bool
2237
2238 config NR_CPUS_DEFAULT_4
2239 bool
2240
2241 config NR_CPUS_DEFAULT_8
2242 bool
2243
2244 config NR_CPUS_DEFAULT_16
2245 bool
2246
2247 config NR_CPUS_DEFAULT_32
2248 bool
2249
2250 config NR_CPUS_DEFAULT_64
2251 bool
2252
2253 config NR_CPUS
2254 int "Maximum number of CPUs (2-64)"
2255 range 1 64 if NR_CPUS_DEFAULT_1
2256 depends on SMP
2257 default "1" if NR_CPUS_DEFAULT_1
2258 default "2" if NR_CPUS_DEFAULT_2
2259 default "4" if NR_CPUS_DEFAULT_4
2260 default "8" if NR_CPUS_DEFAULT_8
2261 default "16" if NR_CPUS_DEFAULT_16
2262 default "32" if NR_CPUS_DEFAULT_32
2263 default "64" if NR_CPUS_DEFAULT_64
2264 help
2265 This allows you to specify the maximum number of CPUs which this
2266 kernel will support. The maximum supported value is 32 for 32-bit
2267 kernel and 64 for 64-bit kernels; the minimum value which makes
2268 sense is 1 for Qemu (useful only for kernel debugging purposes)
2269 and 2 for all others.
2270
2271 This is purely to save memory - each supported CPU adds
2272 approximately eight kilobytes to the kernel image. For best
2273 performance should round up your number of processors to the next
2274 power of two.
2275
2276 config MIPS_PERF_SHARED_TC_COUNTERS
2277 bool
2278
2279 #
2280 # Timer Interrupt Frequency Configuration
2281 #
2282
2283 choice
2284 prompt "Timer frequency"
2285 default HZ_250
2286 help
2287 Allows the configuration of the timer frequency.
2288
2289 config HZ_48
2290 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2291
2292 config HZ_100
2293 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2294
2295 config HZ_128
2296 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2297
2298 config HZ_250
2299 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2300
2301 config HZ_256
2302 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2303
2304 config HZ_1000
2305 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2306
2307 config HZ_1024
2308 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2309
2310 endchoice
2311
2312 config SYS_SUPPORTS_48HZ
2313 bool
2314
2315 config SYS_SUPPORTS_100HZ
2316 bool
2317
2318 config SYS_SUPPORTS_128HZ
2319 bool
2320
2321 config SYS_SUPPORTS_250HZ
2322 bool
2323
2324 config SYS_SUPPORTS_256HZ
2325 bool
2326
2327 config SYS_SUPPORTS_1000HZ
2328 bool
2329
2330 config SYS_SUPPORTS_1024HZ
2331 bool
2332
2333 config SYS_SUPPORTS_ARBIT_HZ
2334 bool
2335 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2336 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2337 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2338 !SYS_SUPPORTS_1024HZ
2339
2340 config HZ
2341 int
2342 default 48 if HZ_48
2343 default 100 if HZ_100
2344 default 128 if HZ_128
2345 default 250 if HZ_250
2346 default 256 if HZ_256
2347 default 1000 if HZ_1000
2348 default 1024 if HZ_1024
2349
2350 source "kernel/Kconfig.preempt"
2351
2352 config KEXEC
2353 bool "Kexec system call (EXPERIMENTAL)"
2354 depends on EXPERIMENTAL
2355 help
2356 kexec is a system call that implements the ability to shutdown your
2357 current kernel, and to start another kernel. It is like a reboot
2358 but it is independent of the system firmware. And like a reboot
2359 you can start any kernel with it, not just Linux.
2360
2361 The name comes from the similarity to the exec system call.
2362
2363 It is an ongoing process to be certain the hardware in a machine
2364 is properly shutdown, so do not be surprised if this code does not
2365 initially work for you. It may help to enable device hotplugging
2366 support. As of this writing the exact hardware interface is
2367 strongly in flux, so no good recommendation can be made.
2368
2369 config SECCOMP
2370 bool "Enable seccomp to safely compute untrusted bytecode"
2371 depends on PROC_FS
2372 default y
2373 help
2374 This kernel feature is useful for number crunching applications
2375 that may need to compute untrusted bytecode during their
2376 execution. By using pipes or other transports made available to
2377 the process as file descriptors supporting the read/write
2378 syscalls, it's possible to isolate those applications in
2379 their own address space using seccomp. Once seccomp is
2380 enabled via /proc/<pid>/seccomp, it cannot be disabled
2381 and the task is only allowed to execute a few safe syscalls
2382 defined by each seccomp mode.
2383
2384 If unsure, say Y. Only embedded should say N here.
2385
2386 config USE_OF
2387 bool
2388 select OF
2389 select OF_EARLY_FLATTREE
2390 select IRQ_DOMAIN
2391
2392 endmenu
2393
2394 config LOCKDEP_SUPPORT
2395 bool
2396 default y
2397
2398 config STACKTRACE_SUPPORT
2399 bool
2400 default y
2401
2402 source "init/Kconfig"
2403
2404 source "kernel/Kconfig.freezer"
2405
2406 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2407
2408 config HW_HAS_EISA
2409 bool
2410 config HW_HAS_PCI
2411 bool
2412
2413 config PCI
2414 bool "Support for PCI controller"
2415 depends on HW_HAS_PCI
2416 select PCI_DOMAINS
2417 select GENERIC_PCI_IOMAP
2418 select NO_GENERIC_PCI_IOPORT_MAP
2419 help
2420 Find out whether you have a PCI motherboard. PCI is the name of a
2421 bus system, i.e. the way the CPU talks to the other stuff inside
2422 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2423 say Y, otherwise N.
2424
2425 config PCI_DOMAINS
2426 bool
2427
2428 source "drivers/pci/Kconfig"
2429
2430 source "drivers/pci/pcie/Kconfig"
2431
2432 #
2433 # ISA support is now enabled via select. Too many systems still have the one
2434 # or other ISA chip on the board that users don't know about so don't expect
2435 # users to choose the right thing ...
2436 #
2437 config ISA
2438 bool
2439
2440 config EISA
2441 bool "EISA support"
2442 depends on HW_HAS_EISA
2443 select ISA
2444 select GENERIC_ISA_DMA
2445 ---help---
2446 The Extended Industry Standard Architecture (EISA) bus was
2447 developed as an open alternative to the IBM MicroChannel bus.
2448
2449 The EISA bus provided some of the features of the IBM MicroChannel
2450 bus while maintaining backward compatibility with cards made for
2451 the older ISA bus. The EISA bus saw limited use between 1988 and
2452 1995 when it was made obsolete by the PCI bus.
2453
2454 Say Y here if you are building a kernel for an EISA-based machine.
2455
2456 Otherwise, say N.
2457
2458 source "drivers/eisa/Kconfig"
2459
2460 config TC
2461 bool "TURBOchannel support"
2462 depends on MACH_DECSTATION
2463 help
2464 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2465 processors. TURBOchannel programming specifications are available
2466 at:
2467 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2468 and:
2469 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2470 Linux driver support status is documented at:
2471 <http://www.linux-mips.org/wiki/DECstation>
2472
2473 config MMU
2474 bool
2475 default y
2476
2477 config I8253
2478 bool
2479 select CLKSRC_I8253
2480 select CLKEVT_I8253
2481 select MIPS_EXTERNAL_TIMER
2482
2483 config ZONE_DMA32
2484 bool
2485
2486 source "drivers/pcmcia/Kconfig"
2487
2488 source "drivers/pci/hotplug/Kconfig"
2489
2490 config RAPIDIO
2491 bool "RapidIO support"
2492 depends on PCI
2493 default n
2494 help
2495 If you say Y here, the kernel will include drivers and
2496 infrastructure code to support RapidIO interconnect devices.
2497
2498 source "drivers/rapidio/Kconfig"
2499
2500 endmenu
2501
2502 menu "Executable file formats"
2503
2504 source "fs/Kconfig.binfmt"
2505
2506 config TRAD_SIGNALS
2507 bool
2508
2509 config MIPS32_COMPAT
2510 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2511 depends on 64BIT
2512 help
2513 Select this option if you want Linux/MIPS 32-bit binary
2514 compatibility. Since all software available for Linux/MIPS is
2515 currently 32-bit you should say Y here.
2516
2517 config COMPAT
2518 bool
2519 depends on MIPS32_COMPAT
2520 select ARCH_WANT_OLD_COMPAT_IPC
2521 default y
2522
2523 config SYSVIPC_COMPAT
2524 bool
2525 depends on COMPAT && SYSVIPC
2526 default y
2527
2528 config MIPS32_O32
2529 bool "Kernel support for o32 binaries"
2530 depends on MIPS32_COMPAT
2531 help
2532 Select this option if you want to run o32 binaries. These are pure
2533 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2534 existing binaries are in this format.
2535
2536 If unsure, say Y.
2537
2538 config MIPS32_N32
2539 bool "Kernel support for n32 binaries"
2540 depends on MIPS32_COMPAT
2541 help
2542 Select this option if you want to run n32 binaries. These are
2543 64-bit binaries using 32-bit quantities for addressing and certain
2544 data that would normally be 64-bit. They are used in special
2545 cases.
2546
2547 If unsure, say N.
2548
2549 config BINFMT_ELF32
2550 bool
2551 default y if MIPS32_O32 || MIPS32_N32
2552
2553 endmenu
2554
2555 menu "Power management options"
2556
2557 config ARCH_HIBERNATION_POSSIBLE
2558 def_bool y
2559 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2560
2561 config ARCH_SUSPEND_POSSIBLE
2562 def_bool y
2563 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2564
2565 source "kernel/power/Kconfig"
2566
2567 endmenu
2568
2569 source "arch/mips/kernel/cpufreq/Kconfig"
2570
2571 source "net/Kconfig"
2572
2573 source "drivers/Kconfig"
2574
2575 source "fs/Kconfig"
2576
2577 source "arch/mips/Kconfig.debug"
2578
2579 source "security/Kconfig"
2580
2581 source "crypto/Kconfig"
2582
2583 source "lib/Kconfig"
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