Merge remote-tracking branch 'asoc/fix/wm8994' into asoc-linus
[deliverable/linux.git] / arch / mips / Kconfig
1 config MIPS
2 bool
3 default y
4 select HAVE_CONTEXT_TRACKING
5 select HAVE_GENERIC_DMA_COHERENT
6 select HAVE_IDE
7 select HAVE_OPROFILE
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 HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
23 select RTC_LIB if !MACH_LOONGSON
24 select GENERIC_ATOMIC64 if !64BIT
25 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
26 select HAVE_DMA_ATTRS
27 select HAVE_DMA_API_DEBUG
28 select HAVE_GENERIC_HARDIRQS
29 select GENERIC_IRQ_PROBE
30 select GENERIC_IRQ_SHOW
31 select GENERIC_PCI_IOMAP
32 select HAVE_ARCH_JUMP_LABEL
33 select ARCH_WANT_IPC_PARSE_VERSION
34 select IRQ_FORCED_THREADING
35 select HAVE_MEMBLOCK
36 select HAVE_MEMBLOCK_NODE_MAP
37 select ARCH_DISCARD_MEMBLOCK
38 select GENERIC_SMP_IDLE_THREAD
39 select BUILDTIME_EXTABLE_SORT
40 select GENERIC_CLOCKEVENTS
41 select GENERIC_CMOS_UPDATE
42 select HAVE_MOD_ARCH_SPECIFIC
43 select VIRT_TO_BUS
44 select MODULES_USE_ELF_REL if MODULES
45 select MODULES_USE_ELF_RELA if MODULES && 64BIT
46 select CLONE_BACKWARDS
47 select HAVE_DEBUG_STACKOVERFLOW
48
49 menu "Machine selection"
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
59 select CSRC_R4K
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 ARCH_REQUIRE_GPIOLIB
65 select SYS_SUPPORTS_ZBOOT
66 select USB_ARCH_HAS_OHCI
67 select USB_ARCH_HAS_EHCI
68
69 config AR7
70 bool "Texas Instruments AR7"
71 select BOOT_ELF32
72 select DMA_NONCOHERENT
73 select CEVT_R4K
74 select CSRC_R4K
75 select IRQ_CPU
76 select NO_EXCEPT_FILL
77 select SWAP_IO_SPACE
78 select SYS_HAS_CPU_MIPS32_R1
79 select SYS_HAS_EARLY_PRINTK
80 select SYS_SUPPORTS_32BIT_KERNEL
81 select SYS_SUPPORTS_LITTLE_ENDIAN
82 select SYS_SUPPORTS_ZBOOT_UART16550
83 select ARCH_REQUIRE_GPIOLIB
84 select VLYNQ
85 select HAVE_CLK
86 help
87 Support for the Texas Instruments AR7 System-on-a-Chip
88 family: TNETD7100, 7200 and 7300.
89
90 config ATH79
91 bool "Atheros AR71XX/AR724X/AR913X based boards"
92 select ARCH_REQUIRE_GPIOLIB
93 select BOOT_RAW
94 select CEVT_R4K
95 select CSRC_R4K
96 select DMA_NONCOHERENT
97 select HAVE_CLK
98 select IRQ_CPU
99 select MIPS_MACHINE
100 select SYS_HAS_CPU_MIPS32_R2
101 select SYS_HAS_EARLY_PRINTK
102 select SYS_SUPPORTS_32BIT_KERNEL
103 select SYS_SUPPORTS_BIG_ENDIAN
104 help
105 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
106
107 config BCM47XX
108 bool "Broadcom BCM47XX based boards"
109 select ARCH_WANT_OPTIONAL_GPIOLIB
110 select BOOT_RAW
111 select CEVT_R4K
112 select CSRC_R4K
113 select DMA_NONCOHERENT
114 select FW_CFE
115 select HW_HAS_PCI
116 select IRQ_CPU
117 select NO_EXCEPT_FILL
118 select SYS_SUPPORTS_32BIT_KERNEL
119 select SYS_SUPPORTS_LITTLE_ENDIAN
120 select SYS_HAS_EARLY_PRINTK
121 help
122 Support for BCM47XX based boards
123
124 config BCM63XX
125 bool "Broadcom BCM63XX based boards"
126 select BOOT_RAW
127 select CEVT_R4K
128 select CSRC_R4K
129 select DMA_NONCOHERENT
130 select IRQ_CPU
131 select SYS_HAS_CPU_MIPS32_R1
132 select SYS_HAS_CPU_BMIPS4350 if !BCM63XX_CPU_6338 && !BCM63XX_CPU_6345 && !BCM63XX_CPU_6348
133 select NR_CPUS_DEFAULT_2
134 select SYS_SUPPORTS_32BIT_KERNEL
135 select SYS_SUPPORTS_BIG_ENDIAN
136 select SYS_HAS_EARLY_PRINTK
137 select SWAP_IO_SPACE
138 select ARCH_REQUIRE_GPIOLIB
139 select HAVE_CLK
140 help
141 Support for BCM63XX based boards
142
143 config MIPS_COBALT
144 bool "Cobalt Server"
145 select CEVT_R4K
146 select CSRC_R4K
147 select CEVT_GT641XX
148 select DMA_NONCOHERENT
149 select HW_HAS_PCI
150 select I8253
151 select I8259
152 select IRQ_CPU
153 select IRQ_GT641XX
154 select PCI_GT64XXX_PCI0
155 select PCI
156 select SYS_HAS_CPU_NEVADA
157 select SYS_HAS_EARLY_PRINTK
158 select SYS_SUPPORTS_32BIT_KERNEL
159 select SYS_SUPPORTS_64BIT_KERNEL
160 select SYS_SUPPORTS_LITTLE_ENDIAN
161
162 config MACH_DECSTATION
163 bool "DECstations"
164 select BOOT_ELF32
165 select CEVT_DS1287
166 select CEVT_R4K
167 select CSRC_IOASIC
168 select CSRC_R4K
169 select CPU_DADDI_WORKAROUNDS if 64BIT
170 select CPU_R4000_WORKAROUNDS if 64BIT
171 select CPU_R4400_WORKAROUNDS if 64BIT
172 select DMA_NONCOHERENT
173 select NO_IOPORT
174 select IRQ_CPU
175 select SYS_HAS_CPU_R3000
176 select SYS_HAS_CPU_R4X00
177 select SYS_SUPPORTS_32BIT_KERNEL
178 select SYS_SUPPORTS_64BIT_KERNEL
179 select SYS_SUPPORTS_LITTLE_ENDIAN
180 select SYS_SUPPORTS_128HZ
181 select SYS_SUPPORTS_256HZ
182 select SYS_SUPPORTS_1024HZ
183 help
184 This enables support for DEC's MIPS based workstations. For details
185 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
186 DECstation porting pages on <http://decstation.unix-ag.org/>.
187
188 If you have one of the following DECstation Models you definitely
189 want to choose R4xx0 for the CPU Type:
190
191 DECstation 5000/50
192 DECstation 5000/150
193 DECstation 5000/260
194 DECsystem 5900/260
195
196 otherwise choose R3000.
197
198 config MACH_JAZZ
199 bool "Jazz family of machines"
200 select FW_ARC
201 select FW_ARC32
202 select ARCH_MAY_HAVE_PC_FDC
203 select CEVT_R4K
204 select CSRC_R4K
205 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
206 select GENERIC_ISA_DMA
207 select HAVE_PCSPKR_PLATFORM
208 select IRQ_CPU
209 select I8253
210 select I8259
211 select ISA
212 select SYS_HAS_CPU_R4X00
213 select SYS_SUPPORTS_32BIT_KERNEL
214 select SYS_SUPPORTS_64BIT_KERNEL
215 select SYS_SUPPORTS_100HZ
216 help
217 This a family of machines based on the MIPS R4030 chipset which was
218 used by several vendors to build RISC/os and Windows NT workstations.
219 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
220 Olivetti M700-10 workstations.
221
222 config MACH_JZ4740
223 bool "Ingenic JZ4740 based machines"
224 select SYS_HAS_CPU_MIPS32_R1
225 select SYS_SUPPORTS_32BIT_KERNEL
226 select SYS_SUPPORTS_LITTLE_ENDIAN
227 select SYS_SUPPORTS_ZBOOT_UART16550
228 select DMA_NONCOHERENT
229 select IRQ_CPU
230 select ARCH_REQUIRE_GPIOLIB
231 select SYS_HAS_EARLY_PRINTK
232 select HAVE_PWM
233 select HAVE_CLK
234 select GENERIC_IRQ_CHIP
235
236 config LANTIQ
237 bool "Lantiq based platforms"
238 select DMA_NONCOHERENT
239 select IRQ_CPU
240 select CEVT_R4K
241 select CSRC_R4K
242 select SYS_HAS_CPU_MIPS32_R1
243 select SYS_HAS_CPU_MIPS32_R2
244 select SYS_SUPPORTS_BIG_ENDIAN
245 select SYS_SUPPORTS_32BIT_KERNEL
246 select SYS_SUPPORTS_MULTITHREADING
247 select SYS_HAS_EARLY_PRINTK
248 select ARCH_REQUIRE_GPIOLIB
249 select SWAP_IO_SPACE
250 select BOOT_RAW
251 select HAVE_MACH_CLKDEV
252 select CLKDEV_LOOKUP
253 select USE_OF
254 select PINCTRL
255 select PINCTRL_LANTIQ
256
257 config LASAT
258 bool "LASAT Networks platforms"
259 select CEVT_R4K
260 select CSRC_R4K
261 select DMA_NONCOHERENT
262 select SYS_HAS_EARLY_PRINTK
263 select HW_HAS_PCI
264 select IRQ_CPU
265 select PCI_GT64XXX_PCI0
266 select MIPS_NILE4
267 select R5000_CPU_SCACHE
268 select SYS_HAS_CPU_R5000
269 select SYS_SUPPORTS_32BIT_KERNEL
270 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
271 select SYS_SUPPORTS_LITTLE_ENDIAN
272
273 config MACH_LOONGSON
274 bool "Loongson family of machines"
275 select SYS_SUPPORTS_ZBOOT
276 help
277 This enables the support of Loongson family of machines.
278
279 Loongson is a family of general-purpose MIPS-compatible CPUs.
280 developed at Institute of Computing Technology (ICT),
281 Chinese Academy of Sciences (CAS) in the People's Republic
282 of China. The chief architect is Professor Weiwu Hu.
283
284 config MACH_LOONGSON1
285 bool "Loongson 1 family of machines"
286 select SYS_SUPPORTS_ZBOOT
287 help
288 This enables support for the Loongson 1 based machines.
289
290 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
291 the ICT (Institute of Computing Technology) and the Chinese Academy
292 of Sciences.
293
294 config MIPS_MALTA
295 bool "MIPS Malta board"
296 select ARCH_MAY_HAVE_PC_FDC
297 select BOOT_ELF32
298 select BOOT_RAW
299 select CEVT_R4K
300 select CSRC_R4K
301 select CSRC_GIC
302 select DMA_NONCOHERENT
303 select GENERIC_ISA_DMA
304 select HAVE_PCSPKR_PLATFORM
305 select IRQ_CPU
306 select IRQ_GIC
307 select HW_HAS_PCI
308 select I8253
309 select I8259
310 select MIPS_BONITO64
311 select MIPS_CPU_SCACHE
312 select PCI_GT64XXX_PCI0
313 select MIPS_MSC
314 select SWAP_IO_SPACE
315 select SYS_HAS_CPU_MIPS32_R1
316 select SYS_HAS_CPU_MIPS32_R2
317 select SYS_HAS_CPU_MIPS64_R1
318 select SYS_HAS_CPU_MIPS64_R2
319 select SYS_HAS_CPU_NEVADA
320 select SYS_HAS_CPU_RM7000
321 select SYS_HAS_EARLY_PRINTK
322 select SYS_SUPPORTS_32BIT_KERNEL
323 select SYS_SUPPORTS_64BIT_KERNEL
324 select SYS_SUPPORTS_BIG_ENDIAN
325 select SYS_SUPPORTS_LITTLE_ENDIAN
326 select SYS_SUPPORTS_MIPS_CMP
327 select SYS_SUPPORTS_MULTITHREADING
328 select SYS_SUPPORTS_SMARTMIPS
329 select SYS_SUPPORTS_ZBOOT
330 help
331 This enables support for the MIPS Technologies Malta evaluation
332 board.
333
334 config MIPS_SEAD3
335 bool "MIPS SEAD3 board"
336 select BOOT_ELF32
337 select BOOT_RAW
338 select CEVT_R4K
339 select CSRC_R4K
340 select CSRC_GIC
341 select CPU_MIPSR2_IRQ_VI
342 select CPU_MIPSR2_IRQ_EI
343 select DMA_NONCOHERENT
344 select IRQ_CPU
345 select IRQ_GIC
346 select MIPS_MSC
347 select SYS_HAS_CPU_MIPS32_R1
348 select SYS_HAS_CPU_MIPS32_R2
349 select SYS_HAS_CPU_MIPS64_R1
350 select SYS_HAS_EARLY_PRINTK
351 select SYS_SUPPORTS_32BIT_KERNEL
352 select SYS_SUPPORTS_64BIT_KERNEL
353 select SYS_SUPPORTS_BIG_ENDIAN
354 select SYS_SUPPORTS_LITTLE_ENDIAN
355 select SYS_SUPPORTS_SMARTMIPS
356 select SYS_SUPPORTS_MICROMIPS
357 select USB_ARCH_HAS_EHCI
358 select USB_EHCI_BIG_ENDIAN_DESC
359 select USB_EHCI_BIG_ENDIAN_MMIO
360 select USE_OF
361 help
362 This enables support for the MIPS Technologies SEAD3 evaluation
363 board.
364
365 config NEC_MARKEINS
366 bool "NEC EMMA2RH Mark-eins board"
367 select SOC_EMMA2RH
368 select HW_HAS_PCI
369 help
370 This enables support for the NEC Electronics Mark-eins boards.
371
372 config MACH_VR41XX
373 bool "NEC VR4100 series based machines"
374 select CEVT_R4K
375 select CSRC_R4K
376 select SYS_HAS_CPU_VR41XX
377 select ARCH_REQUIRE_GPIOLIB
378
379 config NXP_STB220
380 bool "NXP STB220 board"
381 select SOC_PNX833X
382 help
383 Support for NXP Semiconductors STB220 Development Board.
384
385 config NXP_STB225
386 bool "NXP 225 board"
387 select SOC_PNX833X
388 select SOC_PNX8335
389 help
390 Support for NXP Semiconductors STB225 Development Board.
391
392 config PMC_MSP
393 bool "PMC-Sierra MSP chipsets"
394 select CEVT_R4K
395 select CSRC_R4K
396 select DMA_NONCOHERENT
397 select SWAP_IO_SPACE
398 select NO_EXCEPT_FILL
399 select BOOT_RAW
400 select SYS_HAS_CPU_MIPS32_R1
401 select SYS_HAS_CPU_MIPS32_R2
402 select SYS_SUPPORTS_32BIT_KERNEL
403 select SYS_SUPPORTS_BIG_ENDIAN
404 select IRQ_CPU
405 select SERIAL_8250
406 select SERIAL_8250_CONSOLE
407 select USB_EHCI_BIG_ENDIAN_MMIO
408 select USB_EHCI_BIG_ENDIAN_DESC
409 help
410 This adds support for the PMC-Sierra family of Multi-Service
411 Processor System-On-A-Chips. These parts include a number
412 of integrated peripherals, interfaces and DSPs in addition to
413 a variety of MIPS cores.
414
415 config POWERTV
416 bool "Cisco PowerTV"
417 select BOOT_ELF32
418 select CEVT_R4K
419 select CPU_MIPSR2_IRQ_VI
420 select CPU_MIPSR2_IRQ_EI
421 select CSRC_POWERTV
422 select DMA_NONCOHERENT
423 select HW_HAS_PCI
424 select SYS_HAS_CPU_MIPS32_R2
425 select SYS_SUPPORTS_32BIT_KERNEL
426 select SYS_SUPPORTS_BIG_ENDIAN
427 select SYS_SUPPORTS_HIGHMEM
428 select USB_OHCI_LITTLE_ENDIAN
429 help
430 This enables support for the Cisco PowerTV Platform.
431
432 config RALINK
433 bool "Ralink based machines"
434 select CEVT_R4K
435 select CSRC_R4K
436 select BOOT_RAW
437 select DMA_NONCOHERENT
438 select IRQ_CPU
439 select USE_OF
440 select SYS_HAS_CPU_MIPS32_R1
441 select SYS_HAS_CPU_MIPS32_R2
442 select SYS_SUPPORTS_32BIT_KERNEL
443 select SYS_SUPPORTS_LITTLE_ENDIAN
444 select SYS_HAS_EARLY_PRINTK
445 select HAVE_MACH_CLKDEV
446 select CLKDEV_LOOKUP
447
448 config SGI_IP22
449 bool "SGI IP22 (Indy/Indigo2)"
450 select FW_ARC
451 select FW_ARC32
452 select BOOT_ELF32
453 select CEVT_R4K
454 select CSRC_R4K
455 select DEFAULT_SGI_PARTITION
456 select DMA_NONCOHERENT
457 select HW_HAS_EISA
458 select I8253
459 select I8259
460 select IP22_CPU_SCACHE
461 select IRQ_CPU
462 select GENERIC_ISA_DMA_SUPPORT_BROKEN
463 select SGI_HAS_I8042
464 select SGI_HAS_INDYDOG
465 select SGI_HAS_HAL2
466 select SGI_HAS_SEEQ
467 select SGI_HAS_WD93
468 select SGI_HAS_ZILOG
469 select SWAP_IO_SPACE
470 select SYS_HAS_CPU_R4X00
471 select SYS_HAS_CPU_R5000
472 #
473 # Disable EARLY_PRINTK for now since it leads to overwritten prom
474 # memory during early boot on some machines.
475 #
476 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
477 # for a more details discussion
478 #
479 # select SYS_HAS_EARLY_PRINTK
480 select SYS_SUPPORTS_32BIT_KERNEL
481 select SYS_SUPPORTS_64BIT_KERNEL
482 select SYS_SUPPORTS_BIG_ENDIAN
483 help
484 This are the SGI Indy, Challenge S and Indigo2, as well as certain
485 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
486 that runs on these, say Y here.
487
488 config SGI_IP27
489 bool "SGI IP27 (Origin200/2000)"
490 select FW_ARC
491 select FW_ARC64
492 select BOOT_ELF64
493 select DEFAULT_SGI_PARTITION
494 select DMA_COHERENT
495 select SYS_HAS_EARLY_PRINTK
496 select HW_HAS_PCI
497 select NR_CPUS_DEFAULT_64
498 select SYS_HAS_CPU_R10000
499 select SYS_SUPPORTS_64BIT_KERNEL
500 select SYS_SUPPORTS_BIG_ENDIAN
501 select SYS_SUPPORTS_NUMA
502 select SYS_SUPPORTS_SMP
503 help
504 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
505 workstations. To compile a Linux kernel that runs on these, say Y
506 here.
507
508 config SGI_IP28
509 bool "SGI IP28 (Indigo2 R10k)"
510 select FW_ARC
511 select FW_ARC64
512 select BOOT_ELF64
513 select CEVT_R4K
514 select CSRC_R4K
515 select DEFAULT_SGI_PARTITION
516 select DMA_NONCOHERENT
517 select GENERIC_ISA_DMA_SUPPORT_BROKEN
518 select IRQ_CPU
519 select HW_HAS_EISA
520 select I8253
521 select I8259
522 select SGI_HAS_I8042
523 select SGI_HAS_INDYDOG
524 select SGI_HAS_HAL2
525 select SGI_HAS_SEEQ
526 select SGI_HAS_WD93
527 select SGI_HAS_ZILOG
528 select SWAP_IO_SPACE
529 select SYS_HAS_CPU_R10000
530 #
531 # Disable EARLY_PRINTK for now since it leads to overwritten prom
532 # memory during early boot on some machines.
533 #
534 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
535 # for a more details discussion
536 #
537 # select SYS_HAS_EARLY_PRINTK
538 select SYS_SUPPORTS_64BIT_KERNEL
539 select SYS_SUPPORTS_BIG_ENDIAN
540 help
541 This is the SGI Indigo2 with R10000 processor. To compile a Linux
542 kernel that runs on these, say Y here.
543
544 config SGI_IP32
545 bool "SGI IP32 (O2)"
546 select FW_ARC
547 select FW_ARC32
548 select BOOT_ELF32
549 select CEVT_R4K
550 select CSRC_R4K
551 select DMA_NONCOHERENT
552 select HW_HAS_PCI
553 select IRQ_CPU
554 select R5000_CPU_SCACHE
555 select RM7000_CPU_SCACHE
556 select SYS_HAS_CPU_R5000
557 select SYS_HAS_CPU_R10000 if BROKEN
558 select SYS_HAS_CPU_RM7000
559 select SYS_HAS_CPU_NEVADA
560 select SYS_SUPPORTS_64BIT_KERNEL
561 select SYS_SUPPORTS_BIG_ENDIAN
562 help
563 If you want this kernel to run on SGI O2 workstation, say Y here.
564
565 config SIBYTE_CRHINE
566 bool "Sibyte BCM91120C-CRhine"
567 select BOOT_ELF32
568 select DMA_COHERENT
569 select SIBYTE_BCM1120
570 select SWAP_IO_SPACE
571 select SYS_HAS_CPU_SB1
572 select SYS_SUPPORTS_BIG_ENDIAN
573 select SYS_SUPPORTS_LITTLE_ENDIAN
574
575 config SIBYTE_CARMEL
576 bool "Sibyte BCM91120x-Carmel"
577 select BOOT_ELF32
578 select DMA_COHERENT
579 select SIBYTE_BCM1120
580 select SWAP_IO_SPACE
581 select SYS_HAS_CPU_SB1
582 select SYS_SUPPORTS_BIG_ENDIAN
583 select SYS_SUPPORTS_LITTLE_ENDIAN
584
585 config SIBYTE_CRHONE
586 bool "Sibyte BCM91125C-CRhone"
587 select BOOT_ELF32
588 select DMA_COHERENT
589 select SIBYTE_BCM1125
590 select SWAP_IO_SPACE
591 select SYS_HAS_CPU_SB1
592 select SYS_SUPPORTS_BIG_ENDIAN
593 select SYS_SUPPORTS_HIGHMEM
594 select SYS_SUPPORTS_LITTLE_ENDIAN
595
596 config SIBYTE_RHONE
597 bool "Sibyte BCM91125E-Rhone"
598 select BOOT_ELF32
599 select DMA_COHERENT
600 select SIBYTE_BCM1125H
601 select SWAP_IO_SPACE
602 select SYS_HAS_CPU_SB1
603 select SYS_SUPPORTS_BIG_ENDIAN
604 select SYS_SUPPORTS_LITTLE_ENDIAN
605
606 config SIBYTE_SWARM
607 bool "Sibyte BCM91250A-SWARM"
608 select BOOT_ELF32
609 select DMA_COHERENT
610 select HAVE_PATA_PLATFORM
611 select NR_CPUS_DEFAULT_2
612 select SIBYTE_SB1250
613 select SWAP_IO_SPACE
614 select SYS_HAS_CPU_SB1
615 select SYS_SUPPORTS_BIG_ENDIAN
616 select SYS_SUPPORTS_HIGHMEM
617 select SYS_SUPPORTS_LITTLE_ENDIAN
618 select ZONE_DMA32 if 64BIT
619
620 config SIBYTE_LITTLESUR
621 bool "Sibyte BCM91250C2-LittleSur"
622 select BOOT_ELF32
623 select DMA_COHERENT
624 select HAVE_PATA_PLATFORM
625 select NR_CPUS_DEFAULT_2
626 select SIBYTE_SB1250
627 select SWAP_IO_SPACE
628 select SYS_HAS_CPU_SB1
629 select SYS_SUPPORTS_BIG_ENDIAN
630 select SYS_SUPPORTS_HIGHMEM
631 select SYS_SUPPORTS_LITTLE_ENDIAN
632
633 config SIBYTE_SENTOSA
634 bool "Sibyte BCM91250E-Sentosa"
635 select BOOT_ELF32
636 select DMA_COHERENT
637 select NR_CPUS_DEFAULT_2
638 select SIBYTE_SB1250
639 select SWAP_IO_SPACE
640 select SYS_HAS_CPU_SB1
641 select SYS_SUPPORTS_BIG_ENDIAN
642 select SYS_SUPPORTS_LITTLE_ENDIAN
643
644 config SIBYTE_BIGSUR
645 bool "Sibyte BCM91480B-BigSur"
646 select BOOT_ELF32
647 select DMA_COHERENT
648 select NR_CPUS_DEFAULT_4
649 select SIBYTE_BCM1x80
650 select SWAP_IO_SPACE
651 select SYS_HAS_CPU_SB1
652 select SYS_SUPPORTS_BIG_ENDIAN
653 select SYS_SUPPORTS_HIGHMEM
654 select SYS_SUPPORTS_LITTLE_ENDIAN
655 select ZONE_DMA32 if 64BIT
656
657 config SNI_RM
658 bool "SNI RM200/300/400"
659 select FW_ARC if CPU_LITTLE_ENDIAN
660 select FW_ARC32 if CPU_LITTLE_ENDIAN
661 select FW_SNIPROM if CPU_BIG_ENDIAN
662 select ARCH_MAY_HAVE_PC_FDC
663 select BOOT_ELF32
664 select CEVT_R4K
665 select CSRC_R4K
666 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
667 select DMA_NONCOHERENT
668 select GENERIC_ISA_DMA
669 select HAVE_PCSPKR_PLATFORM
670 select HW_HAS_EISA
671 select HW_HAS_PCI
672 select IRQ_CPU
673 select I8253
674 select I8259
675 select ISA
676 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
677 select SYS_HAS_CPU_R4X00
678 select SYS_HAS_CPU_R5000
679 select SYS_HAS_CPU_R10000
680 select R5000_CPU_SCACHE
681 select SYS_HAS_EARLY_PRINTK
682 select SYS_SUPPORTS_32BIT_KERNEL
683 select SYS_SUPPORTS_64BIT_KERNEL
684 select SYS_SUPPORTS_BIG_ENDIAN
685 select SYS_SUPPORTS_HIGHMEM
686 select SYS_SUPPORTS_LITTLE_ENDIAN
687 help
688 The SNI RM200/300/400 are MIPS-based machines manufactured by
689 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
690 Technology and now in turn merged with Fujitsu. Say Y here to
691 support this machine type.
692
693 config MACH_TX39XX
694 bool "Toshiba TX39 series based machines"
695
696 config MACH_TX49XX
697 bool "Toshiba TX49 series based machines"
698
699 config MIKROTIK_RB532
700 bool "Mikrotik RB532 boards"
701 select CEVT_R4K
702 select CSRC_R4K
703 select DMA_NONCOHERENT
704 select HW_HAS_PCI
705 select IRQ_CPU
706 select SYS_HAS_CPU_MIPS32_R1
707 select SYS_SUPPORTS_32BIT_KERNEL
708 select SYS_SUPPORTS_LITTLE_ENDIAN
709 select SWAP_IO_SPACE
710 select BOOT_RAW
711 select ARCH_REQUIRE_GPIOLIB
712 help
713 Support the Mikrotik(tm) RouterBoard 532 series,
714 based on the IDT RC32434 SoC.
715
716 config CAVIUM_OCTEON_SOC
717 bool "Cavium Networks Octeon SoC based boards"
718 select CEVT_R4K
719 select 64BIT_PHYS_ADDR
720 select DMA_COHERENT
721 select SYS_SUPPORTS_64BIT_KERNEL
722 select SYS_SUPPORTS_BIG_ENDIAN
723 select EDAC_SUPPORT
724 select SYS_SUPPORTS_HOTPLUG_CPU
725 select SYS_HAS_EARLY_PRINTK
726 select SYS_HAS_CPU_CAVIUM_OCTEON
727 select SWAP_IO_SPACE
728 select HW_HAS_PCI
729 select ARCH_SUPPORTS_MSI
730 select ZONE_DMA32
731 select USB_ARCH_HAS_OHCI
732 select USB_ARCH_HAS_EHCI
733 select HOLES_IN_ZONE
734 help
735 This option supports all of the Octeon reference boards from Cavium
736 Networks. It builds a kernel that dynamically determines the Octeon
737 CPU type and supports all known board reference implementations.
738 Some of the supported boards are:
739 EBT3000
740 EBH3000
741 EBH3100
742 Thunder
743 Kodama
744 Hikari
745 Say Y here for most Octeon reference boards.
746
747 config NLM_XLR_BOARD
748 bool "Netlogic XLR/XLS based systems"
749 select BOOT_ELF32
750 select NLM_COMMON
751 select SYS_HAS_CPU_XLR
752 select SYS_SUPPORTS_SMP
753 select HW_HAS_PCI
754 select SWAP_IO_SPACE
755 select SYS_SUPPORTS_32BIT_KERNEL
756 select SYS_SUPPORTS_64BIT_KERNEL
757 select 64BIT_PHYS_ADDR
758 select SYS_SUPPORTS_BIG_ENDIAN
759 select SYS_SUPPORTS_HIGHMEM
760 select DMA_COHERENT
761 select NR_CPUS_DEFAULT_32
762 select CEVT_R4K
763 select CSRC_R4K
764 select IRQ_CPU
765 select ARCH_SUPPORTS_MSI
766 select ZONE_DMA32 if 64BIT
767 select SYNC_R4K
768 select SYS_HAS_EARLY_PRINTK
769 select USB_ARCH_HAS_OHCI if USB_SUPPORT
770 select USB_ARCH_HAS_EHCI if USB_SUPPORT
771 select SYS_SUPPORTS_ZBOOT
772 select SYS_SUPPORTS_ZBOOT_UART16550
773 help
774 Support for systems based on Netlogic XLR and XLS processors.
775 Say Y here if you have a XLR or XLS based board.
776
777 config NLM_XLP_BOARD
778 bool "Netlogic XLP based systems"
779 select BOOT_ELF32
780 select NLM_COMMON
781 select SYS_HAS_CPU_XLP
782 select SYS_SUPPORTS_SMP
783 select HW_HAS_PCI
784 select SYS_SUPPORTS_32BIT_KERNEL
785 select SYS_SUPPORTS_64BIT_KERNEL
786 select 64BIT_PHYS_ADDR
787 select SYS_SUPPORTS_BIG_ENDIAN
788 select SYS_SUPPORTS_LITTLE_ENDIAN
789 select SYS_SUPPORTS_HIGHMEM
790 select DMA_COHERENT
791 select NR_CPUS_DEFAULT_32
792 select CEVT_R4K
793 select CSRC_R4K
794 select IRQ_CPU
795 select ZONE_DMA32 if 64BIT
796 select SYNC_R4K
797 select SYS_HAS_EARLY_PRINTK
798 select USE_OF
799 select SYS_SUPPORTS_ZBOOT
800 select SYS_SUPPORTS_ZBOOT_UART16550
801 help
802 This board is based on Netlogic XLP Processor.
803 Say Y here if you have a XLP based board.
804
805 endchoice
806
807 source "arch/mips/alchemy/Kconfig"
808 source "arch/mips/ath79/Kconfig"
809 source "arch/mips/bcm47xx/Kconfig"
810 source "arch/mips/bcm63xx/Kconfig"
811 source "arch/mips/jazz/Kconfig"
812 source "arch/mips/jz4740/Kconfig"
813 source "arch/mips/lantiq/Kconfig"
814 source "arch/mips/lasat/Kconfig"
815 source "arch/mips/pmcs-msp71xx/Kconfig"
816 source "arch/mips/powertv/Kconfig"
817 source "arch/mips/ralink/Kconfig"
818 source "arch/mips/sgi-ip27/Kconfig"
819 source "arch/mips/sibyte/Kconfig"
820 source "arch/mips/txx9/Kconfig"
821 source "arch/mips/vr41xx/Kconfig"
822 source "arch/mips/cavium-octeon/Kconfig"
823 source "arch/mips/loongson/Kconfig"
824 source "arch/mips/loongson1/Kconfig"
825 source "arch/mips/netlogic/Kconfig"
826
827 endmenu
828
829 config RWSEM_GENERIC_SPINLOCK
830 bool
831 default y
832
833 config RWSEM_XCHGADD_ALGORITHM
834 bool
835
836 config ARCH_HAS_ILOG2_U32
837 bool
838 default n
839
840 config ARCH_HAS_ILOG2_U64
841 bool
842 default n
843
844 config GENERIC_HWEIGHT
845 bool
846 default y
847
848 config GENERIC_CALIBRATE_DELAY
849 bool
850 default y
851
852 config SCHED_OMIT_FRAME_POINTER
853 bool
854 default y
855
856 #
857 # Select some configuration options automatically based on user selections.
858 #
859 config FW_ARC
860 bool
861
862 config ARCH_MAY_HAVE_PC_FDC
863 bool
864
865 config BOOT_RAW
866 bool
867
868 config CEVT_BCM1480
869 bool
870
871 config CEVT_DS1287
872 bool
873
874 config CEVT_GT641XX
875 bool
876
877 config CEVT_R4K
878 bool
879
880 config CEVT_GIC
881 bool
882
883 config CEVT_SB1250
884 bool
885
886 config CEVT_TXX9
887 bool
888
889 config CSRC_BCM1480
890 bool
891
892 config CSRC_IOASIC
893 bool
894
895 config CSRC_POWERTV
896 bool
897
898 config CSRC_R4K
899 bool
900
901 config CSRC_GIC
902 bool
903
904 config CSRC_SB1250
905 bool
906
907 config GPIO_TXX9
908 select ARCH_REQUIRE_GPIOLIB
909 bool
910
911 config FW_CFE
912 bool
913
914 config ARCH_DMA_ADDR_T_64BIT
915 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
916
917 config DMA_COHERENT
918 bool
919
920 config DMA_NONCOHERENT
921 bool
922 select NEED_DMA_MAP_STATE
923
924 config NEED_DMA_MAP_STATE
925 bool
926
927 config SYS_HAS_EARLY_PRINTK
928 bool
929
930 config HOTPLUG_CPU
931 bool "Support for hot-pluggable CPUs"
932 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
933 help
934 Say Y here to allow turning CPUs off and on. CPUs can be
935 controlled through /sys/devices/system/cpu.
936 (Note: power management support will enable this option
937 automatically on SMP systems. )
938 Say N if you want to disable CPU hotplug.
939
940 config SYS_SUPPORTS_HOTPLUG_CPU
941 bool
942
943 config I8259
944 bool
945
946 config MIPS_BONITO64
947 bool
948
949 config MIPS_MSC
950 bool
951
952 config MIPS_NILE4
953 bool
954
955 config SYNC_R4K
956 bool
957
958 config MIPS_MACHINE
959 def_bool n
960
961 config NO_IOPORT
962 def_bool n
963
964 config GENERIC_ISA_DMA
965 bool
966 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
967 select ISA_DMA_API
968
969 config GENERIC_ISA_DMA_SUPPORT_BROKEN
970 bool
971 select GENERIC_ISA_DMA
972
973 config ISA_DMA_API
974 bool
975
976 config HOLES_IN_ZONE
977 bool
978
979 #
980 # Endianness selection. Sufficiently obscure so many users don't know what to
981 # answer,so we try hard to limit the available choices. Also the use of a
982 # choice statement should be more obvious to the user.
983 #
984 choice
985 prompt "Endianness selection"
986 help
987 Some MIPS machines can be configured for either little or big endian
988 byte order. These modes require different kernels and a different
989 Linux distribution. In general there is one preferred byteorder for a
990 particular system but some systems are just as commonly used in the
991 one or the other endianness.
992
993 config CPU_BIG_ENDIAN
994 bool "Big endian"
995 depends on SYS_SUPPORTS_BIG_ENDIAN
996
997 config CPU_LITTLE_ENDIAN
998 bool "Little endian"
999 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1000
1001 endchoice
1002
1003 config EXPORT_UASM
1004 bool
1005
1006 config SYS_SUPPORTS_APM_EMULATION
1007 bool
1008
1009 config SYS_SUPPORTS_BIG_ENDIAN
1010 bool
1011
1012 config SYS_SUPPORTS_LITTLE_ENDIAN
1013 bool
1014
1015 config SYS_SUPPORTS_HUGETLBFS
1016 bool
1017 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1018 default y
1019
1020 config MIPS_HUGE_TLB_SUPPORT
1021 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1022
1023 config IRQ_CPU
1024 bool
1025
1026 config IRQ_CPU_RM7K
1027 bool
1028
1029 config IRQ_MSP_SLP
1030 bool
1031
1032 config IRQ_MSP_CIC
1033 bool
1034
1035 config IRQ_TXX9
1036 bool
1037
1038 config IRQ_GT641XX
1039 bool
1040
1041 config IRQ_GIC
1042 bool
1043
1044 config PCI_GT64XXX_PCI0
1045 bool
1046
1047 config NO_EXCEPT_FILL
1048 bool
1049
1050 config SOC_EMMA2RH
1051 bool
1052 select CEVT_R4K
1053 select CSRC_R4K
1054 select DMA_NONCOHERENT
1055 select IRQ_CPU
1056 select SWAP_IO_SPACE
1057 select SYS_HAS_CPU_R5500
1058 select SYS_SUPPORTS_32BIT_KERNEL
1059 select SYS_SUPPORTS_64BIT_KERNEL
1060 select SYS_SUPPORTS_BIG_ENDIAN
1061
1062 config SOC_PNX833X
1063 bool
1064 select CEVT_R4K
1065 select CSRC_R4K
1066 select IRQ_CPU
1067 select DMA_NONCOHERENT
1068 select SYS_HAS_CPU_MIPS32_R2
1069 select SYS_SUPPORTS_32BIT_KERNEL
1070 select SYS_SUPPORTS_LITTLE_ENDIAN
1071 select SYS_SUPPORTS_BIG_ENDIAN
1072 select CPU_MIPSR2_IRQ_VI
1073
1074 config SOC_PNX8335
1075 bool
1076 select SOC_PNX833X
1077
1078 config SWAP_IO_SPACE
1079 bool
1080
1081 config SGI_HAS_INDYDOG
1082 bool
1083
1084 config SGI_HAS_HAL2
1085 bool
1086
1087 config SGI_HAS_SEEQ
1088 bool
1089
1090 config SGI_HAS_WD93
1091 bool
1092
1093 config SGI_HAS_ZILOG
1094 bool
1095
1096 config SGI_HAS_I8042
1097 bool
1098
1099 config DEFAULT_SGI_PARTITION
1100 bool
1101
1102 config FW_ARC32
1103 bool
1104
1105 config FW_SNIPROM
1106 bool
1107
1108 config BOOT_ELF32
1109 bool
1110
1111 config MIPS_L1_CACHE_SHIFT
1112 int
1113 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL || SOC_RT288X
1114 default "6" if MIPS_CPU_SCACHE
1115 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1116 default "5"
1117
1118 config HAVE_STD_PC_SERIAL_PORT
1119 bool
1120
1121 config ARC_CONSOLE
1122 bool "ARC console support"
1123 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1124
1125 config ARC_MEMORY
1126 bool
1127 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1128 default y
1129
1130 config ARC_PROMLIB
1131 bool
1132 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1133 default y
1134
1135 config FW_ARC64
1136 bool
1137
1138 config BOOT_ELF64
1139 bool
1140
1141 menu "CPU selection"
1142
1143 choice
1144 prompt "CPU type"
1145 default CPU_R4X00
1146
1147 config CPU_LOONGSON2E
1148 bool "Loongson 2E"
1149 depends on SYS_HAS_CPU_LOONGSON2E
1150 select CPU_LOONGSON2
1151 help
1152 The Loongson 2E processor implements the MIPS III instruction set
1153 with many extensions.
1154
1155 It has an internal FPGA northbridge, which is compatible to
1156 bonito64.
1157
1158 config CPU_LOONGSON2F
1159 bool "Loongson 2F"
1160 depends on SYS_HAS_CPU_LOONGSON2F
1161 select CPU_LOONGSON2
1162 select ARCH_REQUIRE_GPIOLIB
1163 help
1164 The Loongson 2F processor implements the MIPS III instruction set
1165 with many extensions.
1166
1167 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1168 have a similar programming interface with FPGA northbridge used in
1169 Loongson2E.
1170
1171 config CPU_LOONGSON1B
1172 bool "Loongson 1B"
1173 depends on SYS_HAS_CPU_LOONGSON1B
1174 select CPU_LOONGSON1
1175 help
1176 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1177 release 2 instruction set.
1178
1179 config CPU_MIPS32_R1
1180 bool "MIPS32 Release 1"
1181 depends on SYS_HAS_CPU_MIPS32_R1
1182 select CPU_HAS_PREFETCH
1183 select CPU_SUPPORTS_32BIT_KERNEL
1184 select CPU_SUPPORTS_HIGHMEM
1185 help
1186 Choose this option to build a kernel for release 1 or later of the
1187 MIPS32 architecture. Most modern embedded systems with a 32-bit
1188 MIPS processor are based on a MIPS32 processor. If you know the
1189 specific type of processor in your system, choose those that one
1190 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1191 Release 2 of the MIPS32 architecture is available since several
1192 years so chances are you even have a MIPS32 Release 2 processor
1193 in which case you should choose CPU_MIPS32_R2 instead for better
1194 performance.
1195
1196 config CPU_MIPS32_R2
1197 bool "MIPS32 Release 2"
1198 depends on SYS_HAS_CPU_MIPS32_R2
1199 select CPU_HAS_PREFETCH
1200 select CPU_SUPPORTS_32BIT_KERNEL
1201 select CPU_SUPPORTS_HIGHMEM
1202 select HAVE_KVM
1203 help
1204 Choose this option to build a kernel for release 2 or later of the
1205 MIPS32 architecture. Most modern embedded systems with a 32-bit
1206 MIPS processor are based on a MIPS32 processor. If you know the
1207 specific type of processor in your system, choose those that one
1208 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1209
1210 config CPU_MIPS64_R1
1211 bool "MIPS64 Release 1"
1212 depends on SYS_HAS_CPU_MIPS64_R1
1213 select CPU_HAS_PREFETCH
1214 select CPU_SUPPORTS_32BIT_KERNEL
1215 select CPU_SUPPORTS_64BIT_KERNEL
1216 select CPU_SUPPORTS_HIGHMEM
1217 select CPU_SUPPORTS_HUGEPAGES
1218 help
1219 Choose this option to build a kernel for release 1 or later of the
1220 MIPS64 architecture. Many modern embedded systems with a 64-bit
1221 MIPS processor are based on a MIPS64 processor. If you know the
1222 specific type of processor in your system, choose those that one
1223 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1224 Release 2 of the MIPS64 architecture is available since several
1225 years so chances are you even have a MIPS64 Release 2 processor
1226 in which case you should choose CPU_MIPS64_R2 instead for better
1227 performance.
1228
1229 config CPU_MIPS64_R2
1230 bool "MIPS64 Release 2"
1231 depends on SYS_HAS_CPU_MIPS64_R2
1232 select CPU_HAS_PREFETCH
1233 select CPU_SUPPORTS_32BIT_KERNEL
1234 select CPU_SUPPORTS_64BIT_KERNEL
1235 select CPU_SUPPORTS_HIGHMEM
1236 select CPU_SUPPORTS_HUGEPAGES
1237 help
1238 Choose this option to build a kernel for release 2 or later of the
1239 MIPS64 architecture. Many modern embedded systems with a 64-bit
1240 MIPS processor are based on a MIPS64 processor. If you know the
1241 specific type of processor in your system, choose those that one
1242 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1243
1244 config CPU_R3000
1245 bool "R3000"
1246 depends on SYS_HAS_CPU_R3000
1247 select CPU_HAS_WB
1248 select CPU_SUPPORTS_32BIT_KERNEL
1249 select CPU_SUPPORTS_HIGHMEM
1250 help
1251 Please make sure to pick the right CPU type. Linux/MIPS is not
1252 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1253 *not* work on R4000 machines and vice versa. However, since most
1254 of the supported machines have an R4000 (or similar) CPU, R4x00
1255 might be a safe bet. If the resulting kernel does not work,
1256 try to recompile with R3000.
1257
1258 config CPU_TX39XX
1259 bool "R39XX"
1260 depends on SYS_HAS_CPU_TX39XX
1261 select CPU_SUPPORTS_32BIT_KERNEL
1262
1263 config CPU_VR41XX
1264 bool "R41xx"
1265 depends on SYS_HAS_CPU_VR41XX
1266 select CPU_SUPPORTS_32BIT_KERNEL
1267 select CPU_SUPPORTS_64BIT_KERNEL
1268 help
1269 The options selects support for the NEC VR4100 series of processors.
1270 Only choose this option if you have one of these processors as a
1271 kernel built with this option will not run on any other type of
1272 processor or vice versa.
1273
1274 config CPU_R4300
1275 bool "R4300"
1276 depends on SYS_HAS_CPU_R4300
1277 select CPU_SUPPORTS_32BIT_KERNEL
1278 select CPU_SUPPORTS_64BIT_KERNEL
1279 help
1280 MIPS Technologies R4300-series processors.
1281
1282 config CPU_R4X00
1283 bool "R4x00"
1284 depends on SYS_HAS_CPU_R4X00
1285 select CPU_SUPPORTS_32BIT_KERNEL
1286 select CPU_SUPPORTS_64BIT_KERNEL
1287 select CPU_SUPPORTS_HUGEPAGES
1288 help
1289 MIPS Technologies R4000-series processors other than 4300, including
1290 the R4000, R4400, R4600, and 4700.
1291
1292 config CPU_TX49XX
1293 bool "R49XX"
1294 depends on SYS_HAS_CPU_TX49XX
1295 select CPU_HAS_PREFETCH
1296 select CPU_SUPPORTS_32BIT_KERNEL
1297 select CPU_SUPPORTS_64BIT_KERNEL
1298 select CPU_SUPPORTS_HUGEPAGES
1299
1300 config CPU_R5000
1301 bool "R5000"
1302 depends on SYS_HAS_CPU_R5000
1303 select CPU_SUPPORTS_32BIT_KERNEL
1304 select CPU_SUPPORTS_64BIT_KERNEL
1305 select CPU_SUPPORTS_HUGEPAGES
1306 help
1307 MIPS Technologies R5000-series processors other than the Nevada.
1308
1309 config CPU_R5432
1310 bool "R5432"
1311 depends on SYS_HAS_CPU_R5432
1312 select CPU_SUPPORTS_32BIT_KERNEL
1313 select CPU_SUPPORTS_64BIT_KERNEL
1314 select CPU_SUPPORTS_HUGEPAGES
1315
1316 config CPU_R5500
1317 bool "R5500"
1318 depends on SYS_HAS_CPU_R5500
1319 select CPU_SUPPORTS_32BIT_KERNEL
1320 select CPU_SUPPORTS_64BIT_KERNEL
1321 select CPU_SUPPORTS_HUGEPAGES
1322 help
1323 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1324 instruction set.
1325
1326 config CPU_R6000
1327 bool "R6000"
1328 depends on SYS_HAS_CPU_R6000
1329 select CPU_SUPPORTS_32BIT_KERNEL
1330 help
1331 MIPS Technologies R6000 and R6000A series processors. Note these
1332 processors are extremely rare and the support for them is incomplete.
1333
1334 config CPU_NEVADA
1335 bool "RM52xx"
1336 depends on SYS_HAS_CPU_NEVADA
1337 select CPU_SUPPORTS_32BIT_KERNEL
1338 select CPU_SUPPORTS_64BIT_KERNEL
1339 select CPU_SUPPORTS_HUGEPAGES
1340 help
1341 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1342
1343 config CPU_R8000
1344 bool "R8000"
1345 depends on SYS_HAS_CPU_R8000
1346 select CPU_HAS_PREFETCH
1347 select CPU_SUPPORTS_64BIT_KERNEL
1348 help
1349 MIPS Technologies R8000 processors. Note these processors are
1350 uncommon and the support for them is incomplete.
1351
1352 config CPU_R10000
1353 bool "R10000"
1354 depends on SYS_HAS_CPU_R10000
1355 select CPU_HAS_PREFETCH
1356 select CPU_SUPPORTS_32BIT_KERNEL
1357 select CPU_SUPPORTS_64BIT_KERNEL
1358 select CPU_SUPPORTS_HIGHMEM
1359 select CPU_SUPPORTS_HUGEPAGES
1360 help
1361 MIPS Technologies R10000-series processors.
1362
1363 config CPU_RM7000
1364 bool "RM7000"
1365 depends on SYS_HAS_CPU_RM7000
1366 select CPU_HAS_PREFETCH
1367 select CPU_SUPPORTS_32BIT_KERNEL
1368 select CPU_SUPPORTS_64BIT_KERNEL
1369 select CPU_SUPPORTS_HIGHMEM
1370 select CPU_SUPPORTS_HUGEPAGES
1371
1372 config CPU_SB1
1373 bool "SB1"
1374 depends on SYS_HAS_CPU_SB1
1375 select CPU_SUPPORTS_32BIT_KERNEL
1376 select CPU_SUPPORTS_64BIT_KERNEL
1377 select CPU_SUPPORTS_HIGHMEM
1378 select CPU_SUPPORTS_HUGEPAGES
1379 select WEAK_ORDERING
1380
1381 config CPU_CAVIUM_OCTEON
1382 bool "Cavium Octeon processor"
1383 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1384 select ARCH_SPARSEMEM_ENABLE
1385 select CPU_HAS_PREFETCH
1386 select CPU_SUPPORTS_64BIT_KERNEL
1387 select SYS_SUPPORTS_SMP
1388 select NR_CPUS_DEFAULT_16
1389 select WEAK_ORDERING
1390 select CPU_SUPPORTS_HIGHMEM
1391 select CPU_SUPPORTS_HUGEPAGES
1392 select LIBFDT
1393 select USE_OF
1394 select USB_EHCI_BIG_ENDIAN_MMIO
1395 help
1396 The Cavium Octeon processor is a highly integrated chip containing
1397 many ethernet hardware widgets for networking tasks. The processor
1398 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1399 Full details can be found at http://www.caviumnetworks.com.
1400
1401 config CPU_BMIPS3300
1402 bool "BMIPS3300"
1403 depends on SYS_HAS_CPU_BMIPS3300
1404 select CPU_BMIPS
1405 help
1406 Broadcom BMIPS3300 processors.
1407
1408 config CPU_BMIPS4350
1409 bool "BMIPS4350"
1410 depends on SYS_HAS_CPU_BMIPS4350
1411 select CPU_BMIPS
1412 select SYS_SUPPORTS_SMP
1413 select SYS_SUPPORTS_HOTPLUG_CPU
1414 help
1415 Broadcom BMIPS4350 ("VIPER") processors.
1416
1417 config CPU_BMIPS4380
1418 bool "BMIPS4380"
1419 depends on SYS_HAS_CPU_BMIPS4380
1420 select CPU_BMIPS
1421 select SYS_SUPPORTS_SMP
1422 select SYS_SUPPORTS_HOTPLUG_CPU
1423 help
1424 Broadcom BMIPS4380 processors.
1425
1426 config CPU_BMIPS5000
1427 bool "BMIPS5000"
1428 depends on SYS_HAS_CPU_BMIPS5000
1429 select CPU_BMIPS
1430 select CPU_SUPPORTS_HIGHMEM
1431 select MIPS_CPU_SCACHE
1432 select SYS_SUPPORTS_SMP
1433 select SYS_SUPPORTS_HOTPLUG_CPU
1434 help
1435 Broadcom BMIPS5000 processors.
1436
1437 config CPU_XLR
1438 bool "Netlogic XLR SoC"
1439 depends on SYS_HAS_CPU_XLR
1440 select CPU_SUPPORTS_32BIT_KERNEL
1441 select CPU_SUPPORTS_64BIT_KERNEL
1442 select CPU_SUPPORTS_HIGHMEM
1443 select CPU_SUPPORTS_HUGEPAGES
1444 select WEAK_ORDERING
1445 select WEAK_REORDERING_BEYOND_LLSC
1446 help
1447 Netlogic Microsystems XLR/XLS processors.
1448
1449 config CPU_XLP
1450 bool "Netlogic XLP SoC"
1451 depends on SYS_HAS_CPU_XLP
1452 select CPU_SUPPORTS_32BIT_KERNEL
1453 select CPU_SUPPORTS_64BIT_KERNEL
1454 select CPU_SUPPORTS_HIGHMEM
1455 select WEAK_ORDERING
1456 select WEAK_REORDERING_BEYOND_LLSC
1457 select CPU_HAS_PREFETCH
1458 select CPU_MIPSR2
1459 help
1460 Netlogic Microsystems XLP processors.
1461 endchoice
1462
1463 if CPU_LOONGSON2F
1464 config CPU_NOP_WORKAROUNDS
1465 bool
1466
1467 config CPU_JUMP_WORKAROUNDS
1468 bool
1469
1470 config CPU_LOONGSON2F_WORKAROUNDS
1471 bool "Loongson 2F Workarounds"
1472 default y
1473 select CPU_NOP_WORKAROUNDS
1474 select CPU_JUMP_WORKAROUNDS
1475 help
1476 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1477 require workarounds. Without workarounds the system may hang
1478 unexpectedly. For more information please refer to the gas
1479 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1480
1481 Loongson 2F03 and later have fixed these issues and no workarounds
1482 are needed. The workarounds have no significant side effect on them
1483 but may decrease the performance of the system so this option should
1484 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1485 systems.
1486
1487 If unsure, please say Y.
1488 endif # CPU_LOONGSON2F
1489
1490 config SYS_SUPPORTS_ZBOOT
1491 bool
1492 select HAVE_KERNEL_GZIP
1493 select HAVE_KERNEL_BZIP2
1494 select HAVE_KERNEL_LZMA
1495 select HAVE_KERNEL_LZO
1496
1497 config SYS_SUPPORTS_ZBOOT_UART16550
1498 bool
1499 select SYS_SUPPORTS_ZBOOT
1500
1501 config CPU_LOONGSON2
1502 bool
1503 select CPU_SUPPORTS_32BIT_KERNEL
1504 select CPU_SUPPORTS_64BIT_KERNEL
1505 select CPU_SUPPORTS_HIGHMEM
1506 select CPU_SUPPORTS_HUGEPAGES
1507
1508 config CPU_LOONGSON1
1509 bool
1510 select CPU_MIPS32
1511 select CPU_MIPSR2
1512 select CPU_HAS_PREFETCH
1513 select CPU_SUPPORTS_32BIT_KERNEL
1514 select CPU_SUPPORTS_HIGHMEM
1515
1516 config CPU_BMIPS
1517 bool
1518 select CPU_MIPS32
1519 select CPU_SUPPORTS_32BIT_KERNEL
1520 select DMA_NONCOHERENT
1521 select IRQ_CPU
1522 select SWAP_IO_SPACE
1523 select WEAK_ORDERING
1524
1525 config SYS_HAS_CPU_LOONGSON2E
1526 bool
1527
1528 config SYS_HAS_CPU_LOONGSON2F
1529 bool
1530 select CPU_SUPPORTS_CPUFREQ
1531 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1532 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1533
1534 config SYS_HAS_CPU_LOONGSON1B
1535 bool
1536
1537 config SYS_HAS_CPU_MIPS32_R1
1538 bool
1539
1540 config SYS_HAS_CPU_MIPS32_R2
1541 bool
1542
1543 config SYS_HAS_CPU_MIPS64_R1
1544 bool
1545
1546 config SYS_HAS_CPU_MIPS64_R2
1547 bool
1548
1549 config SYS_HAS_CPU_R3000
1550 bool
1551
1552 config SYS_HAS_CPU_TX39XX
1553 bool
1554
1555 config SYS_HAS_CPU_VR41XX
1556 bool
1557
1558 config SYS_HAS_CPU_R4300
1559 bool
1560
1561 config SYS_HAS_CPU_R4X00
1562 bool
1563
1564 config SYS_HAS_CPU_TX49XX
1565 bool
1566
1567 config SYS_HAS_CPU_R5000
1568 bool
1569
1570 config SYS_HAS_CPU_R5432
1571 bool
1572
1573 config SYS_HAS_CPU_R5500
1574 bool
1575
1576 config SYS_HAS_CPU_R6000
1577 bool
1578
1579 config SYS_HAS_CPU_NEVADA
1580 bool
1581
1582 config SYS_HAS_CPU_R8000
1583 bool
1584
1585 config SYS_HAS_CPU_R10000
1586 bool
1587
1588 config SYS_HAS_CPU_RM7000
1589 bool
1590
1591 config SYS_HAS_CPU_SB1
1592 bool
1593
1594 config SYS_HAS_CPU_CAVIUM_OCTEON
1595 bool
1596
1597 config SYS_HAS_CPU_BMIPS3300
1598 bool
1599
1600 config SYS_HAS_CPU_BMIPS4350
1601 bool
1602
1603 config SYS_HAS_CPU_BMIPS4380
1604 bool
1605
1606 config SYS_HAS_CPU_BMIPS5000
1607 bool
1608
1609 config SYS_HAS_CPU_XLR
1610 bool
1611
1612 config SYS_HAS_CPU_XLP
1613 bool
1614
1615 #
1616 # CPU may reorder R->R, R->W, W->R, W->W
1617 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1618 #
1619 config WEAK_ORDERING
1620 bool
1621
1622 #
1623 # CPU may reorder reads and writes beyond LL/SC
1624 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1625 #
1626 config WEAK_REORDERING_BEYOND_LLSC
1627 bool
1628 endmenu
1629
1630 #
1631 # These two indicate any level of the MIPS32 and MIPS64 architecture
1632 #
1633 config CPU_MIPS32
1634 bool
1635 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1636
1637 config CPU_MIPS64
1638 bool
1639 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1640
1641 #
1642 # These two indicate the revision of the architecture, either Release 1 or Release 2
1643 #
1644 config CPU_MIPSR1
1645 bool
1646 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1647
1648 config CPU_MIPSR2
1649 bool
1650 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1651
1652 config SYS_SUPPORTS_32BIT_KERNEL
1653 bool
1654 config SYS_SUPPORTS_64BIT_KERNEL
1655 bool
1656 config CPU_SUPPORTS_32BIT_KERNEL
1657 bool
1658 config CPU_SUPPORTS_64BIT_KERNEL
1659 bool
1660 config CPU_SUPPORTS_CPUFREQ
1661 bool
1662 config CPU_SUPPORTS_ADDRWINCFG
1663 bool
1664 config CPU_SUPPORTS_HUGEPAGES
1665 bool
1666 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1667 bool
1668 config MIPS_PGD_C0_CONTEXT
1669 bool
1670 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1671
1672 #
1673 # Set to y for ptrace access to watch registers.
1674 #
1675 config HARDWARE_WATCHPOINTS
1676 bool
1677 default y if CPU_MIPSR1 || CPU_MIPSR2
1678
1679 menu "Kernel type"
1680
1681 choice
1682 prompt "Kernel code model"
1683 help
1684 You should only select this option if you have a workload that
1685 actually benefits from 64-bit processing or if your machine has
1686 large memory. You will only be presented a single option in this
1687 menu if your system does not support both 32-bit and 64-bit kernels.
1688
1689 config 32BIT
1690 bool "32-bit kernel"
1691 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1692 select TRAD_SIGNALS
1693 help
1694 Select this option if you want to build a 32-bit kernel.
1695 config 64BIT
1696 bool "64-bit kernel"
1697 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1698 help
1699 Select this option if you want to build a 64-bit kernel.
1700
1701 endchoice
1702
1703 config KVM_GUEST
1704 bool "KVM Guest Kernel"
1705 help
1706 Select this option if building a guest kernel for KVM (Trap & Emulate) mode
1707
1708 config KVM_HOST_FREQ
1709 int "KVM Host Processor Frequency (MHz)"
1710 depends on KVM_GUEST
1711 default 500
1712 help
1713 Select this option if building a guest kernel for KVM to skip
1714 RTC emulation when determining guest CPU Frequency. Instead, the guest
1715 processor frequency is automatically derived from the host frequency.
1716
1717 choice
1718 prompt "Kernel page size"
1719 default PAGE_SIZE_4KB
1720
1721 config PAGE_SIZE_4KB
1722 bool "4kB"
1723 depends on !CPU_LOONGSON2
1724 help
1725 This option select the standard 4kB Linux page size. On some
1726 R3000-family processors this is the only available page size. Using
1727 4kB page size will minimize memory consumption and is therefore
1728 recommended for low memory systems.
1729
1730 config PAGE_SIZE_8KB
1731 bool "8kB"
1732 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
1733 help
1734 Using 8kB page size will result in higher performance kernel at
1735 the price of higher memory consumption. This option is available
1736 only on R8000 and cnMIPS processors. Note that you will need a
1737 suitable Linux distribution to support this.
1738
1739 config PAGE_SIZE_16KB
1740 bool "16kB"
1741 depends on !CPU_R3000 && !CPU_TX39XX
1742 help
1743 Using 16kB page size will result in higher performance kernel at
1744 the price of higher memory consumption. This option is available on
1745 all non-R3000 family processors. Note that you will need a suitable
1746 Linux distribution to support this.
1747
1748 config PAGE_SIZE_32KB
1749 bool "32kB"
1750 depends on CPU_CAVIUM_OCTEON
1751 help
1752 Using 32kB page size will result in higher performance kernel at
1753 the price of higher memory consumption. This option is available
1754 only on cnMIPS cores. Note that you will need a suitable Linux
1755 distribution to support this.
1756
1757 config PAGE_SIZE_64KB
1758 bool "64kB"
1759 depends on !CPU_R3000 && !CPU_TX39XX
1760 help
1761 Using 64kB page size will result in higher performance kernel at
1762 the price of higher memory consumption. This option is available on
1763 all non-R3000 family processor. Not that at the time of this
1764 writing this option is still high experimental.
1765
1766 endchoice
1767
1768 config FORCE_MAX_ZONEORDER
1769 int "Maximum zone order"
1770 range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
1771 default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
1772 range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
1773 default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
1774 range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
1775 default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
1776 range 11 64
1777 default "11"
1778 help
1779 The kernel memory allocator divides physically contiguous memory
1780 blocks into "zones", where each zone is a power of two number of
1781 pages. This option selects the largest power of two that the kernel
1782 keeps in the memory allocator. If you need to allocate very large
1783 blocks of physically contiguous memory, then you may need to
1784 increase this value.
1785
1786 This config option is actually maximum order plus one. For example,
1787 a value of 11 means that the largest free memory block is 2^10 pages.
1788
1789 The page size is not necessarily 4KB. Keep this in mind
1790 when choosing a value for this option.
1791
1792 config CEVT_GIC
1793 bool "Use GIC global counter for clock events"
1794 depends on IRQ_GIC && !(MIPS_SEAD3 || MIPS_MT_SMTC)
1795 help
1796 Use the GIC global counter for the clock events. The R4K clock
1797 event driver is always present, so if the platform ends up not
1798 detecting a GIC, it will fall back to the R4K timer for the
1799 generation of clock events.
1800
1801 config BOARD_SCACHE
1802 bool
1803
1804 config IP22_CPU_SCACHE
1805 bool
1806 select BOARD_SCACHE
1807
1808 #
1809 # Support for a MIPS32 / MIPS64 style S-caches
1810 #
1811 config MIPS_CPU_SCACHE
1812 bool
1813 select BOARD_SCACHE
1814
1815 config R5000_CPU_SCACHE
1816 bool
1817 select BOARD_SCACHE
1818
1819 config RM7000_CPU_SCACHE
1820 bool
1821 select BOARD_SCACHE
1822
1823 config SIBYTE_DMA_PAGEOPS
1824 bool "Use DMA to clear/copy pages"
1825 depends on CPU_SB1
1826 help
1827 Instead of using the CPU to zero and copy pages, use a Data Mover
1828 channel. These DMA channels are otherwise unused by the standard
1829 SiByte Linux port. Seems to give a small performance benefit.
1830
1831 config CPU_HAS_PREFETCH
1832 bool
1833
1834 config CPU_GENERIC_DUMP_TLB
1835 bool
1836 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1837
1838 config CPU_R4K_FPU
1839 bool
1840 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1841
1842 config CPU_R4K_CACHE_TLB
1843 bool
1844 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1845
1846 choice
1847 prompt "MIPS MT options"
1848
1849 config MIPS_MT_DISABLED
1850 bool "Disable multithreading support."
1851 help
1852 Use this option if your workload can't take advantage of
1853 MIPS hardware multithreading support. On systems that don't have
1854 the option of an MT-enabled processor this option will be the only
1855 option in this menu.
1856
1857 config MIPS_MT_SMP
1858 bool "Use 1 TC on each available VPE for SMP"
1859 depends on SYS_SUPPORTS_MULTITHREADING
1860 select CPU_MIPSR2_IRQ_VI
1861 select CPU_MIPSR2_IRQ_EI
1862 select MIPS_MT
1863 select NR_CPUS_DEFAULT_2
1864 select SMP
1865 select SYS_SUPPORTS_SCHED_SMT if SMP
1866 select SYS_SUPPORTS_SMP
1867 select SMP_UP
1868 select MIPS_PERF_SHARED_TC_COUNTERS
1869 help
1870 This is a kernel model which is known a VSMP but lately has been
1871 marketesed into SMVP.
1872 Virtual SMP uses the processor's VPEs to implement virtual
1873 processors. In currently available configuration of the 34K processor
1874 this allows for a dual processor. Both processors will share the same
1875 primary caches; each will obtain the half of the TLB for it's own
1876 exclusive use. For a layman this model can be described as similar to
1877 what Intel calls Hyperthreading.
1878
1879 For further information see http://www.linux-mips.org/wiki/34K#VSMP
1880
1881 config MIPS_MT_SMTC
1882 bool "SMTC: Use all TCs on all VPEs for SMP"
1883 depends on CPU_MIPS32_R2
1884 #depends on CPU_MIPS64_R2 # once there is hardware ...
1885 depends on SYS_SUPPORTS_MULTITHREADING
1886 select CPU_MIPSR2_IRQ_VI
1887 select CPU_MIPSR2_IRQ_EI
1888 select MIPS_MT
1889 select NR_CPUS_DEFAULT_8
1890 select SMP
1891 select SYS_SUPPORTS_SMP
1892 select SMP_UP
1893 help
1894 This is a kernel model which is known a SMTC or lately has been
1895 marketesed into SMVP.
1896 is presenting the available TC's of the core as processors to Linux.
1897 On currently available 34K processors this means a Linux system will
1898 see up to 5 processors. The implementation of the SMTC kernel differs
1899 significantly from VSMP and cannot efficiently coexist in the same
1900 kernel binary so the choice between VSMP and SMTC is a compile time
1901 decision.
1902
1903 For further information see http://www.linux-mips.org/wiki/34K#SMTC
1904
1905 endchoice
1906
1907 config MIPS_MT
1908 bool
1909
1910 config SCHED_SMT
1911 bool "SMT (multithreading) scheduler support"
1912 depends on SYS_SUPPORTS_SCHED_SMT
1913 default n
1914 help
1915 SMT scheduler support improves the CPU scheduler's decision making
1916 when dealing with MIPS MT enabled cores at a cost of slightly
1917 increased overhead in some places. If unsure say N here.
1918
1919 config SYS_SUPPORTS_SCHED_SMT
1920 bool
1921
1922 config SYS_SUPPORTS_MULTITHREADING
1923 bool
1924
1925 config MIPS_MT_FPAFF
1926 bool "Dynamic FPU affinity for FP-intensive threads"
1927 default y
1928 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1929
1930 config MIPS_VPE_LOADER
1931 bool "VPE loader support."
1932 depends on SYS_SUPPORTS_MULTITHREADING && MODULES
1933 select CPU_MIPSR2_IRQ_VI
1934 select CPU_MIPSR2_IRQ_EI
1935 select MIPS_MT
1936 help
1937 Includes a loader for loading an elf relocatable object
1938 onto another VPE and running it.
1939
1940 config MIPS_MT_SMTC_IM_BACKSTOP
1941 bool "Use per-TC register bits as backstop for inhibited IM bits"
1942 depends on MIPS_MT_SMTC
1943 default n
1944 help
1945 To support multiple TC microthreads acting as "CPUs" within
1946 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1947 during interrupt handling. To support legacy drivers and interrupt
1948 controller management code, SMTC has a "backstop" to track and
1949 if necessary restore the interrupt mask. This has some performance
1950 impact on interrupt service overhead.
1951
1952 config MIPS_MT_SMTC_IRQAFF
1953 bool "Support IRQ affinity API"
1954 depends on MIPS_MT_SMTC
1955 default n
1956 help
1957 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1958 for SMTC Linux kernel. Requires platform support, of which
1959 an example can be found in the MIPS kernel i8259 and Malta
1960 platform code. Adds some overhead to interrupt dispatch, and
1961 should be used only if you know what you are doing.
1962
1963 config MIPS_VPE_LOADER_TOM
1964 bool "Load VPE program into memory hidden from linux"
1965 depends on MIPS_VPE_LOADER
1966 default y
1967 help
1968 The loader can use memory that is present but has been hidden from
1969 Linux using the kernel command line option "mem=xxMB". It's up to
1970 you to ensure the amount you put in the option and the space your
1971 program requires is less or equal to the amount physically present.
1972
1973 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1974 config MIPS_VPE_APSP_API
1975 bool "Enable support for AP/SP API (RTLX)"
1976 depends on MIPS_VPE_LOADER
1977 help
1978
1979 config MIPS_CMP
1980 bool "MIPS CMP framework support"
1981 depends on SYS_SUPPORTS_MIPS_CMP
1982 select SYNC_R4K
1983 select SYS_SUPPORTS_SMP
1984 select SYS_SUPPORTS_SCHED_SMT if SMP
1985 select WEAK_ORDERING
1986 default n
1987 help
1988 This is a placeholder option for the GCMP work. It will need to
1989 be handled differently...
1990
1991 config SB1_PASS_1_WORKAROUNDS
1992 bool
1993 depends on CPU_SB1_PASS_1
1994 default y
1995
1996 config SB1_PASS_2_WORKAROUNDS
1997 bool
1998 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1999 default y
2000
2001 config SB1_PASS_2_1_WORKAROUNDS
2002 bool
2003 depends on CPU_SB1 && CPU_SB1_PASS_2
2004 default y
2005
2006
2007 config 64BIT_PHYS_ADDR
2008 bool
2009
2010 config ARCH_PHYS_ADDR_T_64BIT
2011 def_bool 64BIT_PHYS_ADDR
2012
2013 config CPU_HAS_SMARTMIPS
2014 depends on SYS_SUPPORTS_SMARTMIPS
2015 bool "Support for the SmartMIPS ASE"
2016 help
2017 SmartMIPS is a extension of the MIPS32 architecture aimed at
2018 increased security at both hardware and software level for
2019 smartcards. Enabling this option will allow proper use of the
2020 SmartMIPS instructions by Linux applications. However a kernel with
2021 this option will not work on a MIPS core without SmartMIPS core. If
2022 you don't know you probably don't have SmartMIPS and should say N
2023 here.
2024
2025 config CPU_MICROMIPS
2026 depends on SYS_SUPPORTS_MICROMIPS
2027 bool "Build kernel using microMIPS ISA"
2028 help
2029 When this option is enabled the kernel will be built using the
2030 microMIPS ISA
2031
2032 config CPU_HAS_WB
2033 bool
2034
2035 config XKS01
2036 bool
2037
2038 #
2039 # Vectored interrupt mode is an R2 feature
2040 #
2041 config CPU_MIPSR2_IRQ_VI
2042 bool
2043
2044 #
2045 # Extended interrupt mode is an R2 feature
2046 #
2047 config CPU_MIPSR2_IRQ_EI
2048 bool
2049
2050 config CPU_HAS_SYNC
2051 bool
2052 depends on !CPU_R3000
2053 default y
2054
2055 #
2056 # CPU non-features
2057 #
2058 config CPU_DADDI_WORKAROUNDS
2059 bool
2060
2061 config CPU_R4000_WORKAROUNDS
2062 bool
2063 select CPU_R4400_WORKAROUNDS
2064
2065 config CPU_R4400_WORKAROUNDS
2066 bool
2067
2068 #
2069 # - Highmem only makes sense for the 32-bit kernel.
2070 # - The current highmem code will only work properly on physically indexed
2071 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2072 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2073 # moment we protect the user and offer the highmem option only on machines
2074 # where it's known to be safe. This will not offer highmem on a few systems
2075 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2076 # indexed CPUs but we're playing safe.
2077 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2078 # know they might have memory configurations that could make use of highmem
2079 # support.
2080 #
2081 config HIGHMEM
2082 bool "High Memory Support"
2083 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
2084
2085 config CPU_SUPPORTS_HIGHMEM
2086 bool
2087
2088 config SYS_SUPPORTS_HIGHMEM
2089 bool
2090
2091 config SYS_SUPPORTS_SMARTMIPS
2092 bool
2093
2094 config SYS_SUPPORTS_MICROMIPS
2095 bool
2096
2097 config ARCH_FLATMEM_ENABLE
2098 def_bool y
2099 depends on !NUMA && !CPU_LOONGSON2
2100
2101 config ARCH_DISCONTIGMEM_ENABLE
2102 bool
2103 default y if SGI_IP27
2104 help
2105 Say Y to support efficient handling of discontiguous physical memory,
2106 for architectures which are either NUMA (Non-Uniform Memory Access)
2107 or have huge holes in the physical address space for other reasons.
2108 See <file:Documentation/vm/numa> for more.
2109
2110 config ARCH_SPARSEMEM_ENABLE
2111 bool
2112 select SPARSEMEM_STATIC
2113
2114 config NUMA
2115 bool "NUMA Support"
2116 depends on SYS_SUPPORTS_NUMA
2117 help
2118 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2119 Access). This option improves performance on systems with more
2120 than two nodes; on two node systems it is generally better to
2121 leave it disabled; on single node systems disable this option
2122 disabled.
2123
2124 config SYS_SUPPORTS_NUMA
2125 bool
2126
2127 config NODES_SHIFT
2128 int
2129 default "6"
2130 depends on NEED_MULTIPLE_NODES
2131
2132 config HW_PERF_EVENTS
2133 bool "Enable hardware performance counter support for perf events"
2134 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2135 default y
2136 help
2137 Enable hardware performance counter support for perf events. If
2138 disabled, perf events will use software events only.
2139
2140 source "mm/Kconfig"
2141
2142 config SMP
2143 bool "Multi-Processing support"
2144 depends on SYS_SUPPORTS_SMP
2145 select USE_GENERIC_SMP_HELPERS
2146 help
2147 This enables support for systems with more than one CPU. If you have
2148 a system with only one CPU, like most personal computers, say N. If
2149 you have a system with more than one CPU, say Y.
2150
2151 If you say N here, the kernel will run on single and multiprocessor
2152 machines, but will use only one CPU of a multiprocessor machine. If
2153 you say Y here, the kernel will run on many, but not all,
2154 singleprocessor machines. On a singleprocessor machine, the kernel
2155 will run faster if you say N here.
2156
2157 People using multiprocessor machines who say Y here should also say
2158 Y to "Enhanced Real Time Clock Support", below.
2159
2160 See also the SMP-HOWTO available at
2161 <http://www.tldp.org/docs.html#howto>.
2162
2163 If you don't know what to do here, say N.
2164
2165 config SMP_UP
2166 bool
2167
2168 config SYS_SUPPORTS_MIPS_CMP
2169 bool
2170
2171 config SYS_SUPPORTS_SMP
2172 bool
2173
2174 config NR_CPUS_DEFAULT_1
2175 bool
2176
2177 config NR_CPUS_DEFAULT_2
2178 bool
2179
2180 config NR_CPUS_DEFAULT_4
2181 bool
2182
2183 config NR_CPUS_DEFAULT_8
2184 bool
2185
2186 config NR_CPUS_DEFAULT_16
2187 bool
2188
2189 config NR_CPUS_DEFAULT_32
2190 bool
2191
2192 config NR_CPUS_DEFAULT_64
2193 bool
2194
2195 config NR_CPUS
2196 int "Maximum number of CPUs (2-64)"
2197 range 1 64 if NR_CPUS_DEFAULT_1
2198 depends on SMP
2199 default "1" if NR_CPUS_DEFAULT_1
2200 default "2" if NR_CPUS_DEFAULT_2
2201 default "4" if NR_CPUS_DEFAULT_4
2202 default "8" if NR_CPUS_DEFAULT_8
2203 default "16" if NR_CPUS_DEFAULT_16
2204 default "32" if NR_CPUS_DEFAULT_32
2205 default "64" if NR_CPUS_DEFAULT_64
2206 help
2207 This allows you to specify the maximum number of CPUs which this
2208 kernel will support. The maximum supported value is 32 for 32-bit
2209 kernel and 64 for 64-bit kernels; the minimum value which makes
2210 sense is 1 for Qemu (useful only for kernel debugging purposes)
2211 and 2 for all others.
2212
2213 This is purely to save memory - each supported CPU adds
2214 approximately eight kilobytes to the kernel image. For best
2215 performance should round up your number of processors to the next
2216 power of two.
2217
2218 config MIPS_PERF_SHARED_TC_COUNTERS
2219 bool
2220
2221 #
2222 # Timer Interrupt Frequency Configuration
2223 #
2224
2225 choice
2226 prompt "Timer frequency"
2227 default HZ_250
2228 help
2229 Allows the configuration of the timer frequency.
2230
2231 config HZ_48
2232 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2233
2234 config HZ_100
2235 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2236
2237 config HZ_128
2238 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2239
2240 config HZ_250
2241 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2242
2243 config HZ_256
2244 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2245
2246 config HZ_1000
2247 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2248
2249 config HZ_1024
2250 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2251
2252 endchoice
2253
2254 config SYS_SUPPORTS_48HZ
2255 bool
2256
2257 config SYS_SUPPORTS_100HZ
2258 bool
2259
2260 config SYS_SUPPORTS_128HZ
2261 bool
2262
2263 config SYS_SUPPORTS_250HZ
2264 bool
2265
2266 config SYS_SUPPORTS_256HZ
2267 bool
2268
2269 config SYS_SUPPORTS_1000HZ
2270 bool
2271
2272 config SYS_SUPPORTS_1024HZ
2273 bool
2274
2275 config SYS_SUPPORTS_ARBIT_HZ
2276 bool
2277 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2278 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2279 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2280 !SYS_SUPPORTS_1024HZ
2281
2282 config HZ
2283 int
2284 default 48 if HZ_48
2285 default 100 if HZ_100
2286 default 128 if HZ_128
2287 default 250 if HZ_250
2288 default 256 if HZ_256
2289 default 1000 if HZ_1000
2290 default 1024 if HZ_1024
2291
2292 source "kernel/Kconfig.preempt"
2293
2294 config KEXEC
2295 bool "Kexec system call"
2296 help
2297 kexec is a system call that implements the ability to shutdown your
2298 current kernel, and to start another kernel. It is like a reboot
2299 but it is independent of the system firmware. And like a reboot
2300 you can start any kernel with it, not just Linux.
2301
2302 The name comes from the similarity to the exec system call.
2303
2304 It is an ongoing process to be certain the hardware in a machine
2305 is properly shutdown, so do not be surprised if this code does not
2306 initially work for you. It may help to enable device hotplugging
2307 support. As of this writing the exact hardware interface is
2308 strongly in flux, so no good recommendation can be made.
2309
2310 config CRASH_DUMP
2311 bool "Kernel crash dumps"
2312 help
2313 Generate crash dump after being started by kexec.
2314 This should be normally only set in special crash dump kernels
2315 which are loaded in the main kernel with kexec-tools into
2316 a specially reserved region and then later executed after
2317 a crash by kdump/kexec. The crash dump kernel must be compiled
2318 to a memory address not used by the main kernel or firmware using
2319 PHYSICAL_START.
2320
2321 config PHYSICAL_START
2322 hex "Physical address where the kernel is loaded"
2323 default "0xffffffff84000000" if 64BIT
2324 default "0x84000000" if 32BIT
2325 depends on CRASH_DUMP
2326 help
2327 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2328 If you plan to use kernel for capturing the crash dump change
2329 this value to start of the reserved region (the "X" value as
2330 specified in the "crashkernel=YM@XM" command line boot parameter
2331 passed to the panic-ed kernel).
2332
2333 config SECCOMP
2334 bool "Enable seccomp to safely compute untrusted bytecode"
2335 depends on PROC_FS
2336 default y
2337 help
2338 This kernel feature is useful for number crunching applications
2339 that may need to compute untrusted bytecode during their
2340 execution. By using pipes or other transports made available to
2341 the process as file descriptors supporting the read/write
2342 syscalls, it's possible to isolate those applications in
2343 their own address space using seccomp. Once seccomp is
2344 enabled via /proc/<pid>/seccomp, it cannot be disabled
2345 and the task is only allowed to execute a few safe syscalls
2346 defined by each seccomp mode.
2347
2348 If unsure, say Y. Only embedded should say N here.
2349
2350 config CC_STACKPROTECTOR
2351 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
2352 help
2353 This option turns on the -fstack-protector GCC feature. This
2354 feature puts, at the beginning of functions, a canary value on
2355 the stack just before the return address, and validates
2356 the value just before actually returning. Stack based buffer
2357 overflows (that need to overwrite this return address) now also
2358 overwrite the canary, which gets detected and the attack is then
2359 neutralized via a kernel panic.
2360
2361 This feature requires gcc version 4.2 or above.
2362
2363 config USE_OF
2364 bool
2365 select OF
2366 select OF_EARLY_FLATTREE
2367 select IRQ_DOMAIN
2368
2369 endmenu
2370
2371 config LOCKDEP_SUPPORT
2372 bool
2373 default y
2374
2375 config STACKTRACE_SUPPORT
2376 bool
2377 default y
2378
2379 source "init/Kconfig"
2380
2381 source "kernel/Kconfig.freezer"
2382
2383 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2384
2385 config HW_HAS_EISA
2386 bool
2387 config HW_HAS_PCI
2388 bool
2389
2390 config PCI
2391 bool "Support for PCI controller"
2392 depends on HW_HAS_PCI
2393 select PCI_DOMAINS
2394 select NO_GENERIC_PCI_IOPORT_MAP
2395 help
2396 Find out whether you have a PCI motherboard. PCI is the name of a
2397 bus system, i.e. the way the CPU talks to the other stuff inside
2398 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2399 say Y, otherwise N.
2400
2401 config PCI_DOMAINS
2402 bool
2403
2404 source "drivers/pci/Kconfig"
2405
2406 source "drivers/pci/pcie/Kconfig"
2407
2408 #
2409 # ISA support is now enabled via select. Too many systems still have the one
2410 # or other ISA chip on the board that users don't know about so don't expect
2411 # users to choose the right thing ...
2412 #
2413 config ISA
2414 bool
2415
2416 config EISA
2417 bool "EISA support"
2418 depends on HW_HAS_EISA
2419 select ISA
2420 select GENERIC_ISA_DMA
2421 ---help---
2422 The Extended Industry Standard Architecture (EISA) bus was
2423 developed as an open alternative to the IBM MicroChannel bus.
2424
2425 The EISA bus provided some of the features of the IBM MicroChannel
2426 bus while maintaining backward compatibility with cards made for
2427 the older ISA bus. The EISA bus saw limited use between 1988 and
2428 1995 when it was made obsolete by the PCI bus.
2429
2430 Say Y here if you are building a kernel for an EISA-based machine.
2431
2432 Otherwise, say N.
2433
2434 source "drivers/eisa/Kconfig"
2435
2436 config TC
2437 bool "TURBOchannel support"
2438 depends on MACH_DECSTATION
2439 help
2440 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2441 processors. TURBOchannel programming specifications are available
2442 at:
2443 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2444 and:
2445 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2446 Linux driver support status is documented at:
2447 <http://www.linux-mips.org/wiki/DECstation>
2448
2449 config MMU
2450 bool
2451 default y
2452
2453 config I8253
2454 bool
2455 select CLKSRC_I8253
2456 select CLKEVT_I8253
2457 select MIPS_EXTERNAL_TIMER
2458
2459 config ZONE_DMA
2460 bool
2461
2462 config ZONE_DMA32
2463 bool
2464
2465 source "drivers/pcmcia/Kconfig"
2466
2467 source "drivers/pci/hotplug/Kconfig"
2468
2469 config RAPIDIO
2470 bool "RapidIO support"
2471 depends on PCI
2472 default n
2473 help
2474 If you say Y here, the kernel will include drivers and
2475 infrastructure code to support RapidIO interconnect devices.
2476
2477 source "drivers/rapidio/Kconfig"
2478
2479 endmenu
2480
2481 menu "Executable file formats"
2482
2483 source "fs/Kconfig.binfmt"
2484
2485 config TRAD_SIGNALS
2486 bool
2487
2488 config MIPS32_COMPAT
2489 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2490 depends on 64BIT
2491 help
2492 Select this option if you want Linux/MIPS 32-bit binary
2493 compatibility. Since all software available for Linux/MIPS is
2494 currently 32-bit you should say Y here.
2495
2496 config COMPAT
2497 bool
2498 depends on MIPS32_COMPAT
2499 select ARCH_WANT_OLD_COMPAT_IPC
2500 default y
2501
2502 config SYSVIPC_COMPAT
2503 bool
2504 depends on COMPAT && SYSVIPC
2505 default y
2506
2507 config MIPS32_O32
2508 bool "Kernel support for o32 binaries"
2509 depends on MIPS32_COMPAT
2510 help
2511 Select this option if you want to run o32 binaries. These are pure
2512 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2513 existing binaries are in this format.
2514
2515 If unsure, say Y.
2516
2517 config MIPS32_N32
2518 bool "Kernel support for n32 binaries"
2519 depends on MIPS32_COMPAT
2520 help
2521 Select this option if you want to run n32 binaries. These are
2522 64-bit binaries using 32-bit quantities for addressing and certain
2523 data that would normally be 64-bit. They are used in special
2524 cases.
2525
2526 If unsure, say N.
2527
2528 config BINFMT_ELF32
2529 bool
2530 default y if MIPS32_O32 || MIPS32_N32
2531
2532 endmenu
2533
2534 menu "Power management options"
2535
2536 config ARCH_HIBERNATION_POSSIBLE
2537 def_bool y
2538 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2539
2540 config ARCH_SUSPEND_POSSIBLE
2541 def_bool y
2542 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2543
2544 source "kernel/power/Kconfig"
2545
2546 endmenu
2547
2548 config MIPS_EXTERNAL_TIMER
2549 bool
2550
2551 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
2552 menu "CPU Power Management"
2553 source "drivers/cpufreq/Kconfig"
2554 endmenu
2555 endif
2556
2557 source "net/Kconfig"
2558
2559 source "drivers/Kconfig"
2560
2561 source "drivers/firmware/Kconfig"
2562
2563 source "fs/Kconfig"
2564
2565 source "arch/mips/Kconfig.debug"
2566
2567 source "security/Kconfig"
2568
2569 source "crypto/Kconfig"
2570
2571 source "lib/Kconfig"
2572
2573 source "arch/mips/kvm/Kconfig"
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