Merge branch 'next/defconfig' into next/late
[deliverable/linux.git] / arch / mips / Kconfig
1 config MIPS
2 bool
3 default y
4 select ARCH_MIGHT_HAVE_PC_PARPORT
5 select ARCH_MIGHT_HAVE_PC_SERIO
6 select HAVE_CONTEXT_TRACKING
7 select HAVE_GENERIC_DMA_COHERENT
8 select HAVE_IDE
9 select HAVE_OPROFILE
10 select HAVE_PERF_EVENTS
11 select PERF_USE_VMALLOC
12 select HAVE_ARCH_KGDB
13 select HAVE_ARCH_SECCOMP_FILTER
14 select HAVE_ARCH_TRACEHOOK
15 select HAVE_BPF_JIT if !CPU_MICROMIPS
16 select ARCH_HAVE_CUSTOM_GPIO_H
17 select HAVE_FUNCTION_TRACER
18 select HAVE_DYNAMIC_FTRACE
19 select HAVE_FTRACE_MCOUNT_RECORD
20 select HAVE_C_RECORDMCOUNT
21 select HAVE_FUNCTION_GRAPH_TRACER
22 select HAVE_KPROBES
23 select HAVE_KRETPROBES
24 select HAVE_SYSCALL_TRACEPOINTS
25 select HAVE_DEBUG_KMEMLEAK
26 select HAVE_SYSCALL_TRACEPOINTS
27 select ARCH_HAS_ELF_RANDOMIZE
28 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
29 select RTC_LIB if !MACH_LOONGSON64
30 select GENERIC_ATOMIC64 if !64BIT
31 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
32 select HAVE_DMA_ATTRS
33 select HAVE_DMA_CONTIGUOUS
34 select HAVE_DMA_API_DEBUG
35 select GENERIC_IRQ_PROBE
36 select GENERIC_IRQ_SHOW
37 select GENERIC_PCI_IOMAP
38 select HAVE_ARCH_JUMP_LABEL
39 select ARCH_WANT_IPC_PARSE_VERSION
40 select IRQ_FORCED_THREADING
41 select HAVE_MEMBLOCK
42 select HAVE_MEMBLOCK_NODE_MAP
43 select ARCH_DISCARD_MEMBLOCK
44 select GENERIC_SMP_IDLE_THREAD
45 select BUILDTIME_EXTABLE_SORT
46 select GENERIC_CLOCKEVENTS
47 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
48 select GENERIC_CMOS_UPDATE
49 select HAVE_MOD_ARCH_SPECIFIC
50 select VIRT_TO_BUS
51 select MODULES_USE_ELF_REL if MODULES
52 select MODULES_USE_ELF_RELA if MODULES && 64BIT
53 select CLONE_BACKWARDS
54 select HAVE_DEBUG_STACKOVERFLOW
55 select HAVE_CC_STACKPROTECTOR
56 select CPU_PM if CPU_IDLE
57 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
58 select ARCH_BINFMT_ELF_STATE
59 select SYSCTL_EXCEPTION_TRACE
60 select HAVE_VIRT_CPU_ACCOUNTING_GEN
61 select HAVE_IRQ_TIME_ACCOUNTING
62
63 menu "Machine selection"
64
65 choice
66 prompt "System type"
67 default SGI_IP22
68
69 config MIPS_ALCHEMY
70 bool "Alchemy processor based machines"
71 select ARCH_PHYS_ADDR_T_64BIT
72 select CEVT_R4K
73 select CSRC_R4K
74 select IRQ_MIPS_CPU
75 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is
76 select SYS_HAS_CPU_MIPS32_R1
77 select SYS_SUPPORTS_32BIT_KERNEL
78 select SYS_SUPPORTS_APM_EMULATION
79 select ARCH_REQUIRE_GPIOLIB
80 select SYS_SUPPORTS_ZBOOT
81 select COMMON_CLK
82
83 config AR7
84 bool "Texas Instruments AR7"
85 select BOOT_ELF32
86 select DMA_NONCOHERENT
87 select CEVT_R4K
88 select CSRC_R4K
89 select IRQ_MIPS_CPU
90 select NO_EXCEPT_FILL
91 select SWAP_IO_SPACE
92 select SYS_HAS_CPU_MIPS32_R1
93 select SYS_HAS_EARLY_PRINTK
94 select SYS_SUPPORTS_32BIT_KERNEL
95 select SYS_SUPPORTS_LITTLE_ENDIAN
96 select SYS_SUPPORTS_MIPS16
97 select SYS_SUPPORTS_ZBOOT_UART16550
98 select ARCH_REQUIRE_GPIOLIB
99 select VLYNQ
100 select HAVE_CLK
101 help
102 Support for the Texas Instruments AR7 System-on-a-Chip
103 family: TNETD7100, 7200 and 7300.
104
105 config ATH25
106 bool "Atheros AR231x/AR531x SoC support"
107 select CEVT_R4K
108 select CSRC_R4K
109 select DMA_NONCOHERENT
110 select IRQ_MIPS_CPU
111 select IRQ_DOMAIN
112 select SYS_HAS_CPU_MIPS32_R1
113 select SYS_SUPPORTS_BIG_ENDIAN
114 select SYS_SUPPORTS_32BIT_KERNEL
115 select SYS_HAS_EARLY_PRINTK
116 help
117 Support for Atheros AR231x and Atheros AR531x based boards
118
119 config ATH79
120 bool "Atheros AR71XX/AR724X/AR913X based boards"
121 select ARCH_HAS_RESET_CONTROLLER
122 select ARCH_REQUIRE_GPIOLIB
123 select BOOT_RAW
124 select CEVT_R4K
125 select CSRC_R4K
126 select DMA_NONCOHERENT
127 select HAVE_CLK
128 select COMMON_CLK
129 select CLKDEV_LOOKUP
130 select IRQ_MIPS_CPU
131 select MIPS_MACHINE
132 select SYS_HAS_CPU_MIPS32_R2
133 select SYS_HAS_EARLY_PRINTK
134 select SYS_SUPPORTS_32BIT_KERNEL
135 select SYS_SUPPORTS_BIG_ENDIAN
136 select SYS_SUPPORTS_MIPS16
137 select SYS_SUPPORTS_ZBOOT
138 select USE_OF
139 help
140 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
141
142 config BMIPS_GENERIC
143 bool "Broadcom Generic BMIPS kernel"
144 select BOOT_RAW
145 select NO_EXCEPT_FILL
146 select USE_OF
147 select CEVT_R4K
148 select CSRC_R4K
149 select SYNC_R4K
150 select COMMON_CLK
151 select BCM7038_L1_IRQ
152 select BCM7120_L2_IRQ
153 select BRCMSTB_L2_IRQ
154 select IRQ_MIPS_CPU
155 select RAW_IRQ_ACCESSORS
156 select DMA_NONCOHERENT
157 select SYS_SUPPORTS_32BIT_KERNEL
158 select SYS_SUPPORTS_LITTLE_ENDIAN
159 select SYS_SUPPORTS_BIG_ENDIAN
160 select SYS_SUPPORTS_HIGHMEM
161 select SYS_HAS_CPU_BMIPS32_3300
162 select SYS_HAS_CPU_BMIPS4350
163 select SYS_HAS_CPU_BMIPS4380
164 select SYS_HAS_CPU_BMIPS5000
165 select SWAP_IO_SPACE
166 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
167 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
168 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
169 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
170 help
171 Build a generic DT-based kernel image that boots on select
172 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
173 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
174 must be set appropriately for your board.
175
176 config BCM47XX
177 bool "Broadcom BCM47XX based boards"
178 select ARCH_WANT_OPTIONAL_GPIOLIB
179 select BOOT_RAW
180 select CEVT_R4K
181 select CSRC_R4K
182 select DMA_NONCOHERENT
183 select HW_HAS_PCI
184 select IRQ_MIPS_CPU
185 select SYS_HAS_CPU_MIPS32_R1
186 select NO_EXCEPT_FILL
187 select SYS_SUPPORTS_32BIT_KERNEL
188 select SYS_SUPPORTS_LITTLE_ENDIAN
189 select SYS_SUPPORTS_MIPS16
190 select SYS_HAS_EARLY_PRINTK
191 select USE_GENERIC_EARLY_PRINTK_8250
192 select GPIOLIB
193 select LEDS_GPIO_REGISTER
194 select BCM47XX_NVRAM
195 help
196 Support for BCM47XX based boards
197
198 config BCM63XX
199 bool "Broadcom BCM63XX based boards"
200 select BOOT_RAW
201 select CEVT_R4K
202 select CSRC_R4K
203 select SYNC_R4K
204 select DMA_NONCOHERENT
205 select IRQ_MIPS_CPU
206 select SYS_SUPPORTS_32BIT_KERNEL
207 select SYS_SUPPORTS_BIG_ENDIAN
208 select SYS_HAS_EARLY_PRINTK
209 select SWAP_IO_SPACE
210 select ARCH_REQUIRE_GPIOLIB
211 select HAVE_CLK
212 select MIPS_L1_CACHE_SHIFT_4
213 help
214 Support for BCM63XX based boards
215
216 config MIPS_COBALT
217 bool "Cobalt Server"
218 select CEVT_R4K
219 select CSRC_R4K
220 select CEVT_GT641XX
221 select DMA_NONCOHERENT
222 select HW_HAS_PCI
223 select I8253
224 select I8259
225 select IRQ_MIPS_CPU
226 select IRQ_GT641XX
227 select PCI_GT64XXX_PCI0
228 select PCI
229 select SYS_HAS_CPU_NEVADA
230 select SYS_HAS_EARLY_PRINTK
231 select SYS_SUPPORTS_32BIT_KERNEL
232 select SYS_SUPPORTS_64BIT_KERNEL
233 select SYS_SUPPORTS_LITTLE_ENDIAN
234 select USE_GENERIC_EARLY_PRINTK_8250
235
236 config MACH_DECSTATION
237 bool "DECstations"
238 select BOOT_ELF32
239 select CEVT_DS1287
240 select CEVT_R4K if CPU_R4X00
241 select CSRC_IOASIC
242 select CSRC_R4K if CPU_R4X00
243 select CPU_DADDI_WORKAROUNDS if 64BIT
244 select CPU_R4000_WORKAROUNDS if 64BIT
245 select CPU_R4400_WORKAROUNDS if 64BIT
246 select DMA_NONCOHERENT
247 select NO_IOPORT_MAP
248 select IRQ_MIPS_CPU
249 select SYS_HAS_CPU_R3000
250 select SYS_HAS_CPU_R4X00
251 select SYS_SUPPORTS_32BIT_KERNEL
252 select SYS_SUPPORTS_64BIT_KERNEL
253 select SYS_SUPPORTS_LITTLE_ENDIAN
254 select SYS_SUPPORTS_128HZ
255 select SYS_SUPPORTS_256HZ
256 select SYS_SUPPORTS_1024HZ
257 select MIPS_L1_CACHE_SHIFT_4
258 help
259 This enables support for DEC's MIPS based workstations. For details
260 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
261 DECstation porting pages on <http://decstation.unix-ag.org/>.
262
263 If you have one of the following DECstation Models you definitely
264 want to choose R4xx0 for the CPU Type:
265
266 DECstation 5000/50
267 DECstation 5000/150
268 DECstation 5000/260
269 DECsystem 5900/260
270
271 otherwise choose R3000.
272
273 config MACH_JAZZ
274 bool "Jazz family of machines"
275 select FW_ARC
276 select FW_ARC32
277 select ARCH_MAY_HAVE_PC_FDC
278 select CEVT_R4K
279 select CSRC_R4K
280 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
281 select GENERIC_ISA_DMA
282 select HAVE_PCSPKR_PLATFORM
283 select IRQ_MIPS_CPU
284 select I8253
285 select I8259
286 select ISA
287 select SYS_HAS_CPU_R4X00
288 select SYS_SUPPORTS_32BIT_KERNEL
289 select SYS_SUPPORTS_64BIT_KERNEL
290 select SYS_SUPPORTS_100HZ
291 help
292 This a family of machines based on the MIPS R4030 chipset which was
293 used by several vendors to build RISC/os and Windows NT workstations.
294 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
295 Olivetti M700-10 workstations.
296
297 config MACH_INGENIC
298 bool "Ingenic SoC based machines"
299 select SYS_SUPPORTS_32BIT_KERNEL
300 select SYS_SUPPORTS_LITTLE_ENDIAN
301 select SYS_SUPPORTS_ZBOOT_UART16550
302 select DMA_NONCOHERENT
303 select IRQ_MIPS_CPU
304 select ARCH_REQUIRE_GPIOLIB
305 select COMMON_CLK
306 select GENERIC_IRQ_CHIP
307 select BUILTIN_DTB
308 select USE_OF
309 select LIBFDT
310
311 config LANTIQ
312 bool "Lantiq based platforms"
313 select DMA_NONCOHERENT
314 select IRQ_MIPS_CPU
315 select CEVT_R4K
316 select CSRC_R4K
317 select SYS_HAS_CPU_MIPS32_R1
318 select SYS_HAS_CPU_MIPS32_R2
319 select SYS_SUPPORTS_BIG_ENDIAN
320 select SYS_SUPPORTS_32BIT_KERNEL
321 select SYS_SUPPORTS_MIPS16
322 select SYS_SUPPORTS_MULTITHREADING
323 select SYS_HAS_EARLY_PRINTK
324 select ARCH_REQUIRE_GPIOLIB
325 select SWAP_IO_SPACE
326 select BOOT_RAW
327 select HAVE_MACH_CLKDEV
328 select CLKDEV_LOOKUP
329 select USE_OF
330 select PINCTRL
331 select PINCTRL_LANTIQ
332 select ARCH_HAS_RESET_CONTROLLER
333 select RESET_CONTROLLER
334
335 config LASAT
336 bool "LASAT Networks platforms"
337 select CEVT_R4K
338 select CRC32
339 select CSRC_R4K
340 select DMA_NONCOHERENT
341 select SYS_HAS_EARLY_PRINTK
342 select HW_HAS_PCI
343 select IRQ_MIPS_CPU
344 select PCI_GT64XXX_PCI0
345 select MIPS_NILE4
346 select R5000_CPU_SCACHE
347 select SYS_HAS_CPU_R5000
348 select SYS_SUPPORTS_32BIT_KERNEL
349 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
350 select SYS_SUPPORTS_LITTLE_ENDIAN
351
352 config MACH_LOONGSON32
353 bool "Loongson-1 family of machines"
354 select SYS_SUPPORTS_ZBOOT
355 help
356 This enables support for the Loongson-1 family of machines.
357
358 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
359 the Institute of Computing Technology (ICT), Chinese Academy of
360 Sciences (CAS).
361
362 config MACH_LOONGSON64
363 bool "Loongson-2/3 family of machines"
364 select SYS_SUPPORTS_ZBOOT
365 help
366 This enables the support of Loongson-2/3 family of machines.
367
368 Loongson-2 is a family of single-core CPUs and Loongson-3 is a
369 family of multi-core CPUs. They are both 64-bit general-purpose
370 MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute
371 of Computing Technology (ICT), Chinese Academy of Sciences (CAS)
372 in the People's Republic of China. The chief architect is Professor
373 Weiwu Hu.
374
375 config MACH_PISTACHIO
376 bool "IMG Pistachio SoC based boards"
377 select ARCH_REQUIRE_GPIOLIB
378 select BOOT_ELF32
379 select BOOT_RAW
380 select CEVT_R4K
381 select CLKSRC_MIPS_GIC
382 select COMMON_CLK
383 select CSRC_R4K
384 select DMA_MAYBE_COHERENT
385 select IRQ_MIPS_CPU
386 select LIBFDT
387 select MFD_SYSCON
388 select MIPS_CPU_SCACHE
389 select MIPS_GIC
390 select PINCTRL
391 select REGULATOR
392 select SYS_HAS_CPU_MIPS32_R2
393 select SYS_SUPPORTS_32BIT_KERNEL
394 select SYS_SUPPORTS_LITTLE_ENDIAN
395 select SYS_SUPPORTS_MIPS_CPS
396 select SYS_SUPPORTS_MULTITHREADING
397 select SYS_SUPPORTS_ZBOOT
398 select SYS_HAS_EARLY_PRINTK
399 select USE_GENERIC_EARLY_PRINTK_8250
400 select USE_OF
401 help
402 This enables support for the IMG Pistachio SoC platform.
403
404 config MIPS_MALTA
405 bool "MIPS Malta board"
406 select ARCH_MAY_HAVE_PC_FDC
407 select BOOT_ELF32
408 select BOOT_RAW
409 select BUILTIN_DTB
410 select CEVT_R4K
411 select CSRC_R4K
412 select CLKSRC_MIPS_GIC
413 select DMA_MAYBE_COHERENT
414 select GENERIC_ISA_DMA
415 select HAVE_PCSPKR_PLATFORM
416 select IRQ_MIPS_CPU
417 select MIPS_GIC
418 select HW_HAS_PCI
419 select I8253
420 select I8259
421 select MIPS_BONITO64
422 select MIPS_CPU_SCACHE
423 select MIPS_L1_CACHE_SHIFT_6
424 select PCI_GT64XXX_PCI0
425 select MIPS_MSC
426 select SWAP_IO_SPACE
427 select SYS_HAS_CPU_MIPS32_R1
428 select SYS_HAS_CPU_MIPS32_R2
429 select SYS_HAS_CPU_MIPS32_R3_5
430 select SYS_HAS_CPU_MIPS32_R5
431 select SYS_HAS_CPU_MIPS32_R6
432 select SYS_HAS_CPU_MIPS64_R1
433 select SYS_HAS_CPU_MIPS64_R2
434 select SYS_HAS_CPU_MIPS64_R6
435 select SYS_HAS_CPU_NEVADA
436 select SYS_HAS_CPU_RM7000
437 select SYS_SUPPORTS_32BIT_KERNEL
438 select SYS_SUPPORTS_64BIT_KERNEL
439 select SYS_SUPPORTS_BIG_ENDIAN
440 select SYS_SUPPORTS_HIGHMEM
441 select SYS_SUPPORTS_LITTLE_ENDIAN
442 select SYS_SUPPORTS_MICROMIPS
443 select SYS_SUPPORTS_MIPS_CMP
444 select SYS_SUPPORTS_MIPS_CPS
445 select SYS_SUPPORTS_MIPS16
446 select SYS_SUPPORTS_MULTITHREADING
447 select SYS_SUPPORTS_SMARTMIPS
448 select SYS_SUPPORTS_ZBOOT
449 select USE_OF
450 select ZONE_DMA32 if 64BIT
451 help
452 This enables support for the MIPS Technologies Malta evaluation
453 board.
454
455 config MIPS_SEAD3
456 bool "MIPS SEAD3 board"
457 select BOOT_ELF32
458 select BOOT_RAW
459 select BUILTIN_DTB
460 select CEVT_R4K
461 select CSRC_R4K
462 select CLKSRC_MIPS_GIC
463 select CPU_MIPSR2_IRQ_VI
464 select CPU_MIPSR2_IRQ_EI
465 select DMA_NONCOHERENT
466 select IRQ_MIPS_CPU
467 select MIPS_GIC
468 select LIBFDT
469 select MIPS_MSC
470 select SYS_HAS_CPU_MIPS32_R1
471 select SYS_HAS_CPU_MIPS32_R2
472 select SYS_HAS_CPU_MIPS64_R1
473 select SYS_HAS_EARLY_PRINTK
474 select SYS_SUPPORTS_32BIT_KERNEL
475 select SYS_SUPPORTS_64BIT_KERNEL
476 select SYS_SUPPORTS_BIG_ENDIAN
477 select SYS_SUPPORTS_LITTLE_ENDIAN
478 select SYS_SUPPORTS_SMARTMIPS
479 select SYS_SUPPORTS_MICROMIPS
480 select SYS_SUPPORTS_MIPS16
481 select USB_EHCI_BIG_ENDIAN_DESC
482 select USB_EHCI_BIG_ENDIAN_MMIO
483 select USE_OF
484 help
485 This enables support for the MIPS Technologies SEAD3 evaluation
486 board.
487
488 config NEC_MARKEINS
489 bool "NEC EMMA2RH Mark-eins board"
490 select SOC_EMMA2RH
491 select HW_HAS_PCI
492 help
493 This enables support for the NEC Electronics Mark-eins boards.
494
495 config MACH_VR41XX
496 bool "NEC VR4100 series based machines"
497 select CEVT_R4K
498 select CSRC_R4K
499 select SYS_HAS_CPU_VR41XX
500 select SYS_SUPPORTS_MIPS16
501 select ARCH_REQUIRE_GPIOLIB
502
503 config NXP_STB220
504 bool "NXP STB220 board"
505 select SOC_PNX833X
506 help
507 Support for NXP Semiconductors STB220 Development Board.
508
509 config NXP_STB225
510 bool "NXP 225 board"
511 select SOC_PNX833X
512 select SOC_PNX8335
513 help
514 Support for NXP Semiconductors STB225 Development Board.
515
516 config PMC_MSP
517 bool "PMC-Sierra MSP chipsets"
518 select CEVT_R4K
519 select CSRC_R4K
520 select DMA_NONCOHERENT
521 select SWAP_IO_SPACE
522 select NO_EXCEPT_FILL
523 select BOOT_RAW
524 select SYS_HAS_CPU_MIPS32_R1
525 select SYS_HAS_CPU_MIPS32_R2
526 select SYS_SUPPORTS_32BIT_KERNEL
527 select SYS_SUPPORTS_BIG_ENDIAN
528 select SYS_SUPPORTS_MIPS16
529 select IRQ_MIPS_CPU
530 select SERIAL_8250
531 select SERIAL_8250_CONSOLE
532 select USB_EHCI_BIG_ENDIAN_MMIO
533 select USB_EHCI_BIG_ENDIAN_DESC
534 help
535 This adds support for the PMC-Sierra family of Multi-Service
536 Processor System-On-A-Chips. These parts include a number
537 of integrated peripherals, interfaces and DSPs in addition to
538 a variety of MIPS cores.
539
540 config RALINK
541 bool "Ralink based machines"
542 select CEVT_R4K
543 select CSRC_R4K
544 select BOOT_RAW
545 select DMA_NONCOHERENT
546 select IRQ_MIPS_CPU
547 select USE_OF
548 select SYS_HAS_CPU_MIPS32_R1
549 select SYS_HAS_CPU_MIPS32_R2
550 select SYS_SUPPORTS_32BIT_KERNEL
551 select SYS_SUPPORTS_LITTLE_ENDIAN
552 select SYS_SUPPORTS_MIPS16
553 select SYS_HAS_EARLY_PRINTK
554 select HAVE_MACH_CLKDEV
555 select CLKDEV_LOOKUP
556 select ARCH_HAS_RESET_CONTROLLER
557 select RESET_CONTROLLER
558
559 config SGI_IP22
560 bool "SGI IP22 (Indy/Indigo2)"
561 select FW_ARC
562 select FW_ARC32
563 select BOOT_ELF32
564 select CEVT_R4K
565 select CSRC_R4K
566 select DEFAULT_SGI_PARTITION
567 select DMA_NONCOHERENT
568 select HW_HAS_EISA
569 select I8253
570 select I8259
571 select IP22_CPU_SCACHE
572 select IRQ_MIPS_CPU
573 select GENERIC_ISA_DMA_SUPPORT_BROKEN
574 select SGI_HAS_I8042
575 select SGI_HAS_INDYDOG
576 select SGI_HAS_HAL2
577 select SGI_HAS_SEEQ
578 select SGI_HAS_WD93
579 select SGI_HAS_ZILOG
580 select SWAP_IO_SPACE
581 select SYS_HAS_CPU_R4X00
582 select SYS_HAS_CPU_R5000
583 #
584 # Disable EARLY_PRINTK for now since it leads to overwritten prom
585 # memory during early boot on some machines.
586 #
587 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
588 # for a more details discussion
589 #
590 # select SYS_HAS_EARLY_PRINTK
591 select SYS_SUPPORTS_32BIT_KERNEL
592 select SYS_SUPPORTS_64BIT_KERNEL
593 select SYS_SUPPORTS_BIG_ENDIAN
594 select MIPS_L1_CACHE_SHIFT_7
595 help
596 This are the SGI Indy, Challenge S and Indigo2, as well as certain
597 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
598 that runs on these, say Y here.
599
600 config SGI_IP27
601 bool "SGI IP27 (Origin200/2000)"
602 select FW_ARC
603 select FW_ARC64
604 select BOOT_ELF64
605 select DEFAULT_SGI_PARTITION
606 select DMA_COHERENT
607 select SYS_HAS_EARLY_PRINTK
608 select HW_HAS_PCI
609 select NR_CPUS_DEFAULT_64
610 select SYS_HAS_CPU_R10000
611 select SYS_SUPPORTS_64BIT_KERNEL
612 select SYS_SUPPORTS_BIG_ENDIAN
613 select SYS_SUPPORTS_NUMA
614 select SYS_SUPPORTS_SMP
615 select MIPS_L1_CACHE_SHIFT_7
616 help
617 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
618 workstations. To compile a Linux kernel that runs on these, say Y
619 here.
620
621 config SGI_IP28
622 bool "SGI IP28 (Indigo2 R10k)"
623 select FW_ARC
624 select FW_ARC64
625 select BOOT_ELF64
626 select CEVT_R4K
627 select CSRC_R4K
628 select DEFAULT_SGI_PARTITION
629 select DMA_NONCOHERENT
630 select GENERIC_ISA_DMA_SUPPORT_BROKEN
631 select IRQ_MIPS_CPU
632 select HW_HAS_EISA
633 select I8253
634 select I8259
635 select SGI_HAS_I8042
636 select SGI_HAS_INDYDOG
637 select SGI_HAS_HAL2
638 select SGI_HAS_SEEQ
639 select SGI_HAS_WD93
640 select SGI_HAS_ZILOG
641 select SWAP_IO_SPACE
642 select SYS_HAS_CPU_R10000
643 #
644 # Disable EARLY_PRINTK for now since it leads to overwritten prom
645 # memory during early boot on some machines.
646 #
647 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
648 # for a more details discussion
649 #
650 # select SYS_HAS_EARLY_PRINTK
651 select SYS_SUPPORTS_64BIT_KERNEL
652 select SYS_SUPPORTS_BIG_ENDIAN
653 select MIPS_L1_CACHE_SHIFT_7
654 help
655 This is the SGI Indigo2 with R10000 processor. To compile a Linux
656 kernel that runs on these, say Y here.
657
658 config SGI_IP32
659 bool "SGI IP32 (O2)"
660 select FW_ARC
661 select FW_ARC32
662 select BOOT_ELF32
663 select CEVT_R4K
664 select CSRC_R4K
665 select DMA_NONCOHERENT
666 select HW_HAS_PCI
667 select IRQ_MIPS_CPU
668 select R5000_CPU_SCACHE
669 select RM7000_CPU_SCACHE
670 select SYS_HAS_CPU_R5000
671 select SYS_HAS_CPU_R10000 if BROKEN
672 select SYS_HAS_CPU_RM7000
673 select SYS_HAS_CPU_NEVADA
674 select SYS_SUPPORTS_64BIT_KERNEL
675 select SYS_SUPPORTS_BIG_ENDIAN
676 help
677 If you want this kernel to run on SGI O2 workstation, say Y here.
678
679 config SIBYTE_CRHINE
680 bool "Sibyte BCM91120C-CRhine"
681 select BOOT_ELF32
682 select DMA_COHERENT
683 select SIBYTE_BCM1120
684 select SWAP_IO_SPACE
685 select SYS_HAS_CPU_SB1
686 select SYS_SUPPORTS_BIG_ENDIAN
687 select SYS_SUPPORTS_LITTLE_ENDIAN
688
689 config SIBYTE_CARMEL
690 bool "Sibyte BCM91120x-Carmel"
691 select BOOT_ELF32
692 select DMA_COHERENT
693 select SIBYTE_BCM1120
694 select SWAP_IO_SPACE
695 select SYS_HAS_CPU_SB1
696 select SYS_SUPPORTS_BIG_ENDIAN
697 select SYS_SUPPORTS_LITTLE_ENDIAN
698
699 config SIBYTE_CRHONE
700 bool "Sibyte BCM91125C-CRhone"
701 select BOOT_ELF32
702 select DMA_COHERENT
703 select SIBYTE_BCM1125
704 select SWAP_IO_SPACE
705 select SYS_HAS_CPU_SB1
706 select SYS_SUPPORTS_BIG_ENDIAN
707 select SYS_SUPPORTS_HIGHMEM
708 select SYS_SUPPORTS_LITTLE_ENDIAN
709
710 config SIBYTE_RHONE
711 bool "Sibyte BCM91125E-Rhone"
712 select BOOT_ELF32
713 select DMA_COHERENT
714 select SIBYTE_BCM1125H
715 select SWAP_IO_SPACE
716 select SYS_HAS_CPU_SB1
717 select SYS_SUPPORTS_BIG_ENDIAN
718 select SYS_SUPPORTS_LITTLE_ENDIAN
719
720 config SIBYTE_SWARM
721 bool "Sibyte BCM91250A-SWARM"
722 select BOOT_ELF32
723 select DMA_COHERENT
724 select HAVE_PATA_PLATFORM
725 select SIBYTE_SB1250
726 select SWAP_IO_SPACE
727 select SYS_HAS_CPU_SB1
728 select SYS_SUPPORTS_BIG_ENDIAN
729 select SYS_SUPPORTS_HIGHMEM
730 select SYS_SUPPORTS_LITTLE_ENDIAN
731 select ZONE_DMA32 if 64BIT
732
733 config SIBYTE_LITTLESUR
734 bool "Sibyte BCM91250C2-LittleSur"
735 select BOOT_ELF32
736 select DMA_COHERENT
737 select HAVE_PATA_PLATFORM
738 select SIBYTE_SB1250
739 select SWAP_IO_SPACE
740 select SYS_HAS_CPU_SB1
741 select SYS_SUPPORTS_BIG_ENDIAN
742 select SYS_SUPPORTS_HIGHMEM
743 select SYS_SUPPORTS_LITTLE_ENDIAN
744
745 config SIBYTE_SENTOSA
746 bool "Sibyte BCM91250E-Sentosa"
747 select BOOT_ELF32
748 select DMA_COHERENT
749 select SIBYTE_SB1250
750 select SWAP_IO_SPACE
751 select SYS_HAS_CPU_SB1
752 select SYS_SUPPORTS_BIG_ENDIAN
753 select SYS_SUPPORTS_LITTLE_ENDIAN
754
755 config SIBYTE_BIGSUR
756 bool "Sibyte BCM91480B-BigSur"
757 select BOOT_ELF32
758 select DMA_COHERENT
759 select NR_CPUS_DEFAULT_4
760 select SIBYTE_BCM1x80
761 select SWAP_IO_SPACE
762 select SYS_HAS_CPU_SB1
763 select SYS_SUPPORTS_BIG_ENDIAN
764 select SYS_SUPPORTS_HIGHMEM
765 select SYS_SUPPORTS_LITTLE_ENDIAN
766 select ZONE_DMA32 if 64BIT
767
768 config SNI_RM
769 bool "SNI RM200/300/400"
770 select FW_ARC if CPU_LITTLE_ENDIAN
771 select FW_ARC32 if CPU_LITTLE_ENDIAN
772 select FW_SNIPROM if CPU_BIG_ENDIAN
773 select ARCH_MAY_HAVE_PC_FDC
774 select BOOT_ELF32
775 select CEVT_R4K
776 select CSRC_R4K
777 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
778 select DMA_NONCOHERENT
779 select GENERIC_ISA_DMA
780 select HAVE_PCSPKR_PLATFORM
781 select HW_HAS_EISA
782 select HW_HAS_PCI
783 select IRQ_MIPS_CPU
784 select I8253
785 select I8259
786 select ISA
787 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
788 select SYS_HAS_CPU_R4X00
789 select SYS_HAS_CPU_R5000
790 select SYS_HAS_CPU_R10000
791 select R5000_CPU_SCACHE
792 select SYS_HAS_EARLY_PRINTK
793 select SYS_SUPPORTS_32BIT_KERNEL
794 select SYS_SUPPORTS_64BIT_KERNEL
795 select SYS_SUPPORTS_BIG_ENDIAN
796 select SYS_SUPPORTS_HIGHMEM
797 select SYS_SUPPORTS_LITTLE_ENDIAN
798 help
799 The SNI RM200/300/400 are MIPS-based machines manufactured by
800 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
801 Technology and now in turn merged with Fujitsu. Say Y here to
802 support this machine type.
803
804 config MACH_TX39XX
805 bool "Toshiba TX39 series based machines"
806
807 config MACH_TX49XX
808 bool "Toshiba TX49 series based machines"
809
810 config MIKROTIK_RB532
811 bool "Mikrotik RB532 boards"
812 select CEVT_R4K
813 select CSRC_R4K
814 select DMA_NONCOHERENT
815 select HW_HAS_PCI
816 select IRQ_MIPS_CPU
817 select SYS_HAS_CPU_MIPS32_R1
818 select SYS_SUPPORTS_32BIT_KERNEL
819 select SYS_SUPPORTS_LITTLE_ENDIAN
820 select SWAP_IO_SPACE
821 select BOOT_RAW
822 select ARCH_REQUIRE_GPIOLIB
823 select MIPS_L1_CACHE_SHIFT_4
824 help
825 Support the Mikrotik(tm) RouterBoard 532 series,
826 based on the IDT RC32434 SoC.
827
828 config CAVIUM_OCTEON_SOC
829 bool "Cavium Networks Octeon SoC based boards"
830 select CEVT_R4K
831 select ARCH_PHYS_ADDR_T_64BIT
832 select DMA_COHERENT
833 select SYS_SUPPORTS_64BIT_KERNEL
834 select SYS_SUPPORTS_BIG_ENDIAN
835 select EDAC_SUPPORT
836 select EDAC_ATOMIC_SCRUB
837 select SYS_SUPPORTS_LITTLE_ENDIAN
838 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
839 select SYS_HAS_EARLY_PRINTK
840 select SYS_HAS_CPU_CAVIUM_OCTEON
841 select SWAP_IO_SPACE
842 select HW_HAS_PCI
843 select ZONE_DMA32
844 select HOLES_IN_ZONE
845 select ARCH_REQUIRE_GPIOLIB
846 select LIBFDT
847 select USE_OF
848 select ARCH_SPARSEMEM_ENABLE
849 select SYS_SUPPORTS_SMP
850 select NR_CPUS_DEFAULT_16
851 select BUILTIN_DTB
852 select MTD_COMPLEX_MAPPINGS
853 help
854 This option supports all of the Octeon reference boards from Cavium
855 Networks. It builds a kernel that dynamically determines the Octeon
856 CPU type and supports all known board reference implementations.
857 Some of the supported boards are:
858 EBT3000
859 EBH3000
860 EBH3100
861 Thunder
862 Kodama
863 Hikari
864 Say Y here for most Octeon reference boards.
865
866 config NLM_XLR_BOARD
867 bool "Netlogic XLR/XLS based systems"
868 select BOOT_ELF32
869 select NLM_COMMON
870 select SYS_HAS_CPU_XLR
871 select SYS_SUPPORTS_SMP
872 select HW_HAS_PCI
873 select SWAP_IO_SPACE
874 select SYS_SUPPORTS_32BIT_KERNEL
875 select SYS_SUPPORTS_64BIT_KERNEL
876 select ARCH_PHYS_ADDR_T_64BIT
877 select SYS_SUPPORTS_BIG_ENDIAN
878 select SYS_SUPPORTS_HIGHMEM
879 select DMA_COHERENT
880 select NR_CPUS_DEFAULT_32
881 select CEVT_R4K
882 select CSRC_R4K
883 select IRQ_MIPS_CPU
884 select ZONE_DMA32 if 64BIT
885 select SYNC_R4K
886 select SYS_HAS_EARLY_PRINTK
887 select SYS_SUPPORTS_ZBOOT
888 select SYS_SUPPORTS_ZBOOT_UART16550
889 help
890 Support for systems based on Netlogic XLR and XLS processors.
891 Say Y here if you have a XLR or XLS based board.
892
893 config NLM_XLP_BOARD
894 bool "Netlogic XLP based systems"
895 select BOOT_ELF32
896 select NLM_COMMON
897 select SYS_HAS_CPU_XLP
898 select SYS_SUPPORTS_SMP
899 select HW_HAS_PCI
900 select SYS_SUPPORTS_32BIT_KERNEL
901 select SYS_SUPPORTS_64BIT_KERNEL
902 select ARCH_PHYS_ADDR_T_64BIT
903 select SYS_SUPPORTS_BIG_ENDIAN
904 select SYS_SUPPORTS_LITTLE_ENDIAN
905 select SYS_SUPPORTS_HIGHMEM
906 select DMA_COHERENT
907 select NR_CPUS_DEFAULT_32
908 select CEVT_R4K
909 select CSRC_R4K
910 select IRQ_MIPS_CPU
911 select ZONE_DMA32 if 64BIT
912 select SYNC_R4K
913 select SYS_HAS_EARLY_PRINTK
914 select USE_OF
915 select SYS_SUPPORTS_ZBOOT
916 select SYS_SUPPORTS_ZBOOT_UART16550
917 help
918 This board is based on Netlogic XLP Processor.
919 Say Y here if you have a XLP based board.
920
921 config MIPS_PARAVIRT
922 bool "Para-Virtualized guest system"
923 select CEVT_R4K
924 select CSRC_R4K
925 select DMA_COHERENT
926 select SYS_SUPPORTS_64BIT_KERNEL
927 select SYS_SUPPORTS_32BIT_KERNEL
928 select SYS_SUPPORTS_BIG_ENDIAN
929 select SYS_SUPPORTS_SMP
930 select NR_CPUS_DEFAULT_4
931 select SYS_HAS_EARLY_PRINTK
932 select SYS_HAS_CPU_MIPS32_R2
933 select SYS_HAS_CPU_MIPS64_R2
934 select SYS_HAS_CPU_CAVIUM_OCTEON
935 select HW_HAS_PCI
936 select SWAP_IO_SPACE
937 help
938 This option supports guest running under ????
939
940 endchoice
941
942 source "arch/mips/alchemy/Kconfig"
943 source "arch/mips/ath25/Kconfig"
944 source "arch/mips/ath79/Kconfig"
945 source "arch/mips/bcm47xx/Kconfig"
946 source "arch/mips/bcm63xx/Kconfig"
947 source "arch/mips/bmips/Kconfig"
948 source "arch/mips/jazz/Kconfig"
949 source "arch/mips/jz4740/Kconfig"
950 source "arch/mips/lantiq/Kconfig"
951 source "arch/mips/lasat/Kconfig"
952 source "arch/mips/pmcs-msp71xx/Kconfig"
953 source "arch/mips/ralink/Kconfig"
954 source "arch/mips/sgi-ip27/Kconfig"
955 source "arch/mips/sibyte/Kconfig"
956 source "arch/mips/txx9/Kconfig"
957 source "arch/mips/vr41xx/Kconfig"
958 source "arch/mips/cavium-octeon/Kconfig"
959 source "arch/mips/loongson32/Kconfig"
960 source "arch/mips/loongson64/Kconfig"
961 source "arch/mips/netlogic/Kconfig"
962 source "arch/mips/paravirt/Kconfig"
963
964 endmenu
965
966 config RWSEM_GENERIC_SPINLOCK
967 bool
968 default y
969
970 config RWSEM_XCHGADD_ALGORITHM
971 bool
972
973 config ARCH_HAS_ILOG2_U32
974 bool
975 default n
976
977 config ARCH_HAS_ILOG2_U64
978 bool
979 default n
980
981 config GENERIC_HWEIGHT
982 bool
983 default y
984
985 config GENERIC_CALIBRATE_DELAY
986 bool
987 default y
988
989 config SCHED_OMIT_FRAME_POINTER
990 bool
991 default y
992
993 #
994 # Select some configuration options automatically based on user selections.
995 #
996 config FW_ARC
997 bool
998
999 config ARCH_MAY_HAVE_PC_FDC
1000 bool
1001
1002 config BOOT_RAW
1003 bool
1004
1005 config CEVT_BCM1480
1006 bool
1007
1008 config CEVT_DS1287
1009 bool
1010
1011 config CEVT_GT641XX
1012 bool
1013
1014 config CEVT_R4K
1015 bool
1016
1017 config CEVT_SB1250
1018 bool
1019
1020 config CEVT_TXX9
1021 bool
1022
1023 config CSRC_BCM1480
1024 bool
1025
1026 config CSRC_IOASIC
1027 bool
1028
1029 config CSRC_R4K
1030 bool
1031
1032 config CSRC_SB1250
1033 bool
1034
1035 config GPIO_TXX9
1036 select ARCH_REQUIRE_GPIOLIB
1037 bool
1038
1039 config FW_CFE
1040 bool
1041
1042 config ARCH_DMA_ADDR_T_64BIT
1043 def_bool (HIGHMEM && ARCH_PHYS_ADDR_T_64BIT) || 64BIT
1044
1045 config DMA_MAYBE_COHERENT
1046 select DMA_NONCOHERENT
1047 bool
1048
1049 config DMA_COHERENT
1050 bool
1051
1052 config DMA_NONCOHERENT
1053 bool
1054 select NEED_DMA_MAP_STATE
1055
1056 config NEED_DMA_MAP_STATE
1057 bool
1058
1059 config SYS_HAS_EARLY_PRINTK
1060 bool
1061
1062 config HOTPLUG_CPU
1063 bool "Support for hot-pluggable CPUs"
1064 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
1065 help
1066 Say Y here to allow turning CPUs off and on. CPUs can be
1067 controlled through /sys/devices/system/cpu.
1068 (Note: power management support will enable this option
1069 automatically on SMP systems. )
1070 Say N if you want to disable CPU hotplug.
1071
1072 config SYS_SUPPORTS_HOTPLUG_CPU
1073 bool
1074
1075 config I8259
1076 bool
1077 select IRQ_DOMAIN
1078
1079 config MIPS_BONITO64
1080 bool
1081
1082 config MIPS_MSC
1083 bool
1084
1085 config MIPS_NILE4
1086 bool
1087
1088 config SYNC_R4K
1089 bool
1090
1091 config MIPS_MACHINE
1092 def_bool n
1093
1094 config NO_IOPORT_MAP
1095 def_bool n
1096
1097 config GENERIC_CSUM
1098 bool
1099
1100 config GENERIC_ISA_DMA
1101 bool
1102 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1103 select ISA_DMA_API
1104
1105 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1106 bool
1107 select GENERIC_ISA_DMA
1108
1109 config ISA_DMA_API
1110 bool
1111
1112 config HOLES_IN_ZONE
1113 bool
1114
1115 #
1116 # Endianness selection. Sufficiently obscure so many users don't know what to
1117 # answer,so we try hard to limit the available choices. Also the use of a
1118 # choice statement should be more obvious to the user.
1119 #
1120 choice
1121 prompt "Endianness selection"
1122 help
1123 Some MIPS machines can be configured for either little or big endian
1124 byte order. These modes require different kernels and a different
1125 Linux distribution. In general there is one preferred byteorder for a
1126 particular system but some systems are just as commonly used in the
1127 one or the other endianness.
1128
1129 config CPU_BIG_ENDIAN
1130 bool "Big endian"
1131 depends on SYS_SUPPORTS_BIG_ENDIAN
1132
1133 config CPU_LITTLE_ENDIAN
1134 bool "Little endian"
1135 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1136
1137 endchoice
1138
1139 config EXPORT_UASM
1140 bool
1141
1142 config SYS_SUPPORTS_APM_EMULATION
1143 bool
1144
1145 config SYS_SUPPORTS_BIG_ENDIAN
1146 bool
1147
1148 config SYS_SUPPORTS_LITTLE_ENDIAN
1149 bool
1150
1151 config SYS_SUPPORTS_HUGETLBFS
1152 bool
1153 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1154 default y
1155
1156 config MIPS_HUGE_TLB_SUPPORT
1157 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1158
1159 config IRQ_CPU_RM7K
1160 bool
1161
1162 config IRQ_MSP_SLP
1163 bool
1164
1165 config IRQ_MSP_CIC
1166 bool
1167
1168 config IRQ_TXX9
1169 bool
1170
1171 config IRQ_GT641XX
1172 bool
1173
1174 config PCI_GT64XXX_PCI0
1175 bool
1176
1177 config NO_EXCEPT_FILL
1178 bool
1179
1180 config SOC_EMMA2RH
1181 bool
1182 select CEVT_R4K
1183 select CSRC_R4K
1184 select DMA_NONCOHERENT
1185 select IRQ_MIPS_CPU
1186 select SWAP_IO_SPACE
1187 select SYS_HAS_CPU_R5500
1188 select SYS_SUPPORTS_32BIT_KERNEL
1189 select SYS_SUPPORTS_64BIT_KERNEL
1190 select SYS_SUPPORTS_BIG_ENDIAN
1191
1192 config SOC_PNX833X
1193 bool
1194 select CEVT_R4K
1195 select CSRC_R4K
1196 select IRQ_MIPS_CPU
1197 select DMA_NONCOHERENT
1198 select SYS_HAS_CPU_MIPS32_R2
1199 select SYS_SUPPORTS_32BIT_KERNEL
1200 select SYS_SUPPORTS_LITTLE_ENDIAN
1201 select SYS_SUPPORTS_BIG_ENDIAN
1202 select SYS_SUPPORTS_MIPS16
1203 select CPU_MIPSR2_IRQ_VI
1204
1205 config SOC_PNX8335
1206 bool
1207 select SOC_PNX833X
1208
1209 config MIPS_SPRAM
1210 bool
1211
1212 config SWAP_IO_SPACE
1213 bool
1214
1215 config SGI_HAS_INDYDOG
1216 bool
1217
1218 config SGI_HAS_HAL2
1219 bool
1220
1221 config SGI_HAS_SEEQ
1222 bool
1223
1224 config SGI_HAS_WD93
1225 bool
1226
1227 config SGI_HAS_ZILOG
1228 bool
1229
1230 config SGI_HAS_I8042
1231 bool
1232
1233 config DEFAULT_SGI_PARTITION
1234 bool
1235
1236 config FW_ARC32
1237 bool
1238
1239 config FW_SNIPROM
1240 bool
1241
1242 config BOOT_ELF32
1243 bool
1244
1245 config MIPS_L1_CACHE_SHIFT_4
1246 bool
1247
1248 config MIPS_L1_CACHE_SHIFT_5
1249 bool
1250
1251 config MIPS_L1_CACHE_SHIFT_6
1252 bool
1253
1254 config MIPS_L1_CACHE_SHIFT_7
1255 bool
1256
1257 config MIPS_L1_CACHE_SHIFT
1258 int
1259 default "7" if MIPS_L1_CACHE_SHIFT_7
1260 default "6" if MIPS_L1_CACHE_SHIFT_6
1261 default "5" if MIPS_L1_CACHE_SHIFT_5
1262 default "4" if MIPS_L1_CACHE_SHIFT_4
1263 default "5"
1264
1265 config HAVE_STD_PC_SERIAL_PORT
1266 bool
1267
1268 config ARC_CONSOLE
1269 bool "ARC console support"
1270 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1271
1272 config ARC_MEMORY
1273 bool
1274 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1275 default y
1276
1277 config ARC_PROMLIB
1278 bool
1279 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1280 default y
1281
1282 config FW_ARC64
1283 bool
1284
1285 config BOOT_ELF64
1286 bool
1287
1288 menu "CPU selection"
1289
1290 choice
1291 prompt "CPU type"
1292 default CPU_R4X00
1293
1294 config CPU_LOONGSON3
1295 bool "Loongson 3 CPU"
1296 depends on SYS_HAS_CPU_LOONGSON3
1297 select CPU_SUPPORTS_64BIT_KERNEL
1298 select CPU_SUPPORTS_HIGHMEM
1299 select CPU_SUPPORTS_HUGEPAGES
1300 select WEAK_ORDERING
1301 select WEAK_REORDERING_BEYOND_LLSC
1302 select ARCH_REQUIRE_GPIOLIB
1303 help
1304 The Loongson 3 processor implements the MIPS64R2 instruction
1305 set with many extensions.
1306
1307 config CPU_LOONGSON2E
1308 bool "Loongson 2E"
1309 depends on SYS_HAS_CPU_LOONGSON2E
1310 select CPU_LOONGSON2
1311 help
1312 The Loongson 2E processor implements the MIPS III instruction set
1313 with many extensions.
1314
1315 It has an internal FPGA northbridge, which is compatible to
1316 bonito64.
1317
1318 config CPU_LOONGSON2F
1319 bool "Loongson 2F"
1320 depends on SYS_HAS_CPU_LOONGSON2F
1321 select CPU_LOONGSON2
1322 select ARCH_REQUIRE_GPIOLIB
1323 help
1324 The Loongson 2F processor implements the MIPS III instruction set
1325 with many extensions.
1326
1327 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1328 have a similar programming interface with FPGA northbridge used in
1329 Loongson2E.
1330
1331 config CPU_LOONGSON1B
1332 bool "Loongson 1B"
1333 depends on SYS_HAS_CPU_LOONGSON1B
1334 select CPU_LOONGSON1
1335 help
1336 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1337 release 2 instruction set.
1338
1339 config CPU_MIPS32_R1
1340 bool "MIPS32 Release 1"
1341 depends on SYS_HAS_CPU_MIPS32_R1
1342 select CPU_HAS_PREFETCH
1343 select CPU_SUPPORTS_32BIT_KERNEL
1344 select CPU_SUPPORTS_HIGHMEM
1345 help
1346 Choose this option to build a kernel for release 1 or later of the
1347 MIPS32 architecture. Most modern embedded systems with a 32-bit
1348 MIPS processor are based on a MIPS32 processor. If you know the
1349 specific type of processor in your system, choose those that one
1350 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1351 Release 2 of the MIPS32 architecture is available since several
1352 years so chances are you even have a MIPS32 Release 2 processor
1353 in which case you should choose CPU_MIPS32_R2 instead for better
1354 performance.
1355
1356 config CPU_MIPS32_R2
1357 bool "MIPS32 Release 2"
1358 depends on SYS_HAS_CPU_MIPS32_R2
1359 select CPU_HAS_PREFETCH
1360 select CPU_SUPPORTS_32BIT_KERNEL
1361 select CPU_SUPPORTS_HIGHMEM
1362 select CPU_SUPPORTS_MSA
1363 select HAVE_KVM
1364 help
1365 Choose this option to build a kernel for release 2 or later of the
1366 MIPS32 architecture. Most modern embedded systems with a 32-bit
1367 MIPS processor are based on a MIPS32 processor. If you know the
1368 specific type of processor in your system, choose those that one
1369 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1370
1371 config CPU_MIPS32_R6
1372 bool "MIPS32 Release 6 (EXPERIMENTAL)"
1373 depends on SYS_HAS_CPU_MIPS32_R6
1374 select CPU_HAS_PREFETCH
1375 select CPU_SUPPORTS_32BIT_KERNEL
1376 select CPU_SUPPORTS_HIGHMEM
1377 select CPU_SUPPORTS_MSA
1378 select GENERIC_CSUM
1379 select HAVE_KVM
1380 select MIPS_O32_FP64_SUPPORT
1381 help
1382 Choose this option to build a kernel for release 6 or later of the
1383 MIPS32 architecture. New MIPS processors, starting with the Warrior
1384 family, are based on a MIPS32r6 processor. If you own an older
1385 processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1386
1387 config CPU_MIPS64_R1
1388 bool "MIPS64 Release 1"
1389 depends on SYS_HAS_CPU_MIPS64_R1
1390 select CPU_HAS_PREFETCH
1391 select CPU_SUPPORTS_32BIT_KERNEL
1392 select CPU_SUPPORTS_64BIT_KERNEL
1393 select CPU_SUPPORTS_HIGHMEM
1394 select CPU_SUPPORTS_HUGEPAGES
1395 help
1396 Choose this option to build a kernel for release 1 or later of the
1397 MIPS64 architecture. Many modern embedded systems with a 64-bit
1398 MIPS processor are based on a MIPS64 processor. If you know the
1399 specific type of processor in your system, choose those that one
1400 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1401 Release 2 of the MIPS64 architecture is available since several
1402 years so chances are you even have a MIPS64 Release 2 processor
1403 in which case you should choose CPU_MIPS64_R2 instead for better
1404 performance.
1405
1406 config CPU_MIPS64_R2
1407 bool "MIPS64 Release 2"
1408 depends on SYS_HAS_CPU_MIPS64_R2
1409 select CPU_HAS_PREFETCH
1410 select CPU_SUPPORTS_32BIT_KERNEL
1411 select CPU_SUPPORTS_64BIT_KERNEL
1412 select CPU_SUPPORTS_HIGHMEM
1413 select CPU_SUPPORTS_HUGEPAGES
1414 select CPU_SUPPORTS_MSA
1415 help
1416 Choose this option to build a kernel for release 2 or later of the
1417 MIPS64 architecture. Many modern embedded systems with a 64-bit
1418 MIPS processor are based on a MIPS64 processor. If you know the
1419 specific type of processor in your system, choose those that one
1420 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1421
1422 config CPU_MIPS64_R6
1423 bool "MIPS64 Release 6 (EXPERIMENTAL)"
1424 depends on SYS_HAS_CPU_MIPS64_R6
1425 select CPU_HAS_PREFETCH
1426 select CPU_SUPPORTS_32BIT_KERNEL
1427 select CPU_SUPPORTS_64BIT_KERNEL
1428 select CPU_SUPPORTS_HIGHMEM
1429 select CPU_SUPPORTS_MSA
1430 select GENERIC_CSUM
1431 help
1432 Choose this option to build a kernel for release 6 or later of the
1433 MIPS64 architecture. New MIPS processors, starting with the Warrior
1434 family, are based on a MIPS64r6 processor. If you own an older
1435 processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1436
1437 config CPU_R3000
1438 bool "R3000"
1439 depends on SYS_HAS_CPU_R3000
1440 select CPU_HAS_WB
1441 select CPU_SUPPORTS_32BIT_KERNEL
1442 select CPU_SUPPORTS_HIGHMEM
1443 help
1444 Please make sure to pick the right CPU type. Linux/MIPS is not
1445 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1446 *not* work on R4000 machines and vice versa. However, since most
1447 of the supported machines have an R4000 (or similar) CPU, R4x00
1448 might be a safe bet. If the resulting kernel does not work,
1449 try to recompile with R3000.
1450
1451 config CPU_TX39XX
1452 bool "R39XX"
1453 depends on SYS_HAS_CPU_TX39XX
1454 select CPU_SUPPORTS_32BIT_KERNEL
1455
1456 config CPU_VR41XX
1457 bool "R41xx"
1458 depends on SYS_HAS_CPU_VR41XX
1459 select CPU_SUPPORTS_32BIT_KERNEL
1460 select CPU_SUPPORTS_64BIT_KERNEL
1461 help
1462 The options selects support for the NEC VR4100 series of processors.
1463 Only choose this option if you have one of these processors as a
1464 kernel built with this option will not run on any other type of
1465 processor or vice versa.
1466
1467 config CPU_R4300
1468 bool "R4300"
1469 depends on SYS_HAS_CPU_R4300
1470 select CPU_SUPPORTS_32BIT_KERNEL
1471 select CPU_SUPPORTS_64BIT_KERNEL
1472 help
1473 MIPS Technologies R4300-series processors.
1474
1475 config CPU_R4X00
1476 bool "R4x00"
1477 depends on SYS_HAS_CPU_R4X00
1478 select CPU_SUPPORTS_32BIT_KERNEL
1479 select CPU_SUPPORTS_64BIT_KERNEL
1480 select CPU_SUPPORTS_HUGEPAGES
1481 help
1482 MIPS Technologies R4000-series processors other than 4300, including
1483 the R4000, R4400, R4600, and 4700.
1484
1485 config CPU_TX49XX
1486 bool "R49XX"
1487 depends on SYS_HAS_CPU_TX49XX
1488 select CPU_HAS_PREFETCH
1489 select CPU_SUPPORTS_32BIT_KERNEL
1490 select CPU_SUPPORTS_64BIT_KERNEL
1491 select CPU_SUPPORTS_HUGEPAGES
1492
1493 config CPU_R5000
1494 bool "R5000"
1495 depends on SYS_HAS_CPU_R5000
1496 select CPU_SUPPORTS_32BIT_KERNEL
1497 select CPU_SUPPORTS_64BIT_KERNEL
1498 select CPU_SUPPORTS_HUGEPAGES
1499 help
1500 MIPS Technologies R5000-series processors other than the Nevada.
1501
1502 config CPU_R5432
1503 bool "R5432"
1504 depends on SYS_HAS_CPU_R5432
1505 select CPU_SUPPORTS_32BIT_KERNEL
1506 select CPU_SUPPORTS_64BIT_KERNEL
1507 select CPU_SUPPORTS_HUGEPAGES
1508
1509 config CPU_R5500
1510 bool "R5500"
1511 depends on SYS_HAS_CPU_R5500
1512 select CPU_SUPPORTS_32BIT_KERNEL
1513 select CPU_SUPPORTS_64BIT_KERNEL
1514 select CPU_SUPPORTS_HUGEPAGES
1515 help
1516 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1517 instruction set.
1518
1519 config CPU_R6000
1520 bool "R6000"
1521 depends on SYS_HAS_CPU_R6000
1522 select CPU_SUPPORTS_32BIT_KERNEL
1523 help
1524 MIPS Technologies R6000 and R6000A series processors. Note these
1525 processors are extremely rare and the support for them is incomplete.
1526
1527 config CPU_NEVADA
1528 bool "RM52xx"
1529 depends on SYS_HAS_CPU_NEVADA
1530 select CPU_SUPPORTS_32BIT_KERNEL
1531 select CPU_SUPPORTS_64BIT_KERNEL
1532 select CPU_SUPPORTS_HUGEPAGES
1533 help
1534 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1535
1536 config CPU_R8000
1537 bool "R8000"
1538 depends on SYS_HAS_CPU_R8000
1539 select CPU_HAS_PREFETCH
1540 select CPU_SUPPORTS_64BIT_KERNEL
1541 help
1542 MIPS Technologies R8000 processors. Note these processors are
1543 uncommon and the support for them is incomplete.
1544
1545 config CPU_R10000
1546 bool "R10000"
1547 depends on SYS_HAS_CPU_R10000
1548 select CPU_HAS_PREFETCH
1549 select CPU_SUPPORTS_32BIT_KERNEL
1550 select CPU_SUPPORTS_64BIT_KERNEL
1551 select CPU_SUPPORTS_HIGHMEM
1552 select CPU_SUPPORTS_HUGEPAGES
1553 help
1554 MIPS Technologies R10000-series processors.
1555
1556 config CPU_RM7000
1557 bool "RM7000"
1558 depends on SYS_HAS_CPU_RM7000
1559 select CPU_HAS_PREFETCH
1560 select CPU_SUPPORTS_32BIT_KERNEL
1561 select CPU_SUPPORTS_64BIT_KERNEL
1562 select CPU_SUPPORTS_HIGHMEM
1563 select CPU_SUPPORTS_HUGEPAGES
1564
1565 config CPU_SB1
1566 bool "SB1"
1567 depends on SYS_HAS_CPU_SB1
1568 select CPU_SUPPORTS_32BIT_KERNEL
1569 select CPU_SUPPORTS_64BIT_KERNEL
1570 select CPU_SUPPORTS_HIGHMEM
1571 select CPU_SUPPORTS_HUGEPAGES
1572 select WEAK_ORDERING
1573
1574 config CPU_CAVIUM_OCTEON
1575 bool "Cavium Octeon processor"
1576 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1577 select CPU_HAS_PREFETCH
1578 select CPU_SUPPORTS_64BIT_KERNEL
1579 select WEAK_ORDERING
1580 select CPU_SUPPORTS_HIGHMEM
1581 select CPU_SUPPORTS_HUGEPAGES
1582 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1583 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1584 select MIPS_L1_CACHE_SHIFT_7
1585 help
1586 The Cavium Octeon processor is a highly integrated chip containing
1587 many ethernet hardware widgets for networking tasks. The processor
1588 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1589 Full details can be found at http://www.caviumnetworks.com.
1590
1591 config CPU_BMIPS
1592 bool "Broadcom BMIPS"
1593 depends on SYS_HAS_CPU_BMIPS
1594 select CPU_MIPS32
1595 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1596 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1597 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1598 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1599 select CPU_SUPPORTS_32BIT_KERNEL
1600 select DMA_NONCOHERENT
1601 select IRQ_MIPS_CPU
1602 select SWAP_IO_SPACE
1603 select WEAK_ORDERING
1604 select CPU_SUPPORTS_HIGHMEM
1605 select CPU_HAS_PREFETCH
1606 help
1607 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1608
1609 config CPU_XLR
1610 bool "Netlogic XLR SoC"
1611 depends on SYS_HAS_CPU_XLR
1612 select CPU_SUPPORTS_32BIT_KERNEL
1613 select CPU_SUPPORTS_64BIT_KERNEL
1614 select CPU_SUPPORTS_HIGHMEM
1615 select CPU_SUPPORTS_HUGEPAGES
1616 select WEAK_ORDERING
1617 select WEAK_REORDERING_BEYOND_LLSC
1618 help
1619 Netlogic Microsystems XLR/XLS processors.
1620
1621 config CPU_XLP
1622 bool "Netlogic XLP SoC"
1623 depends on SYS_HAS_CPU_XLP
1624 select CPU_SUPPORTS_32BIT_KERNEL
1625 select CPU_SUPPORTS_64BIT_KERNEL
1626 select CPU_SUPPORTS_HIGHMEM
1627 select WEAK_ORDERING
1628 select WEAK_REORDERING_BEYOND_LLSC
1629 select CPU_HAS_PREFETCH
1630 select CPU_MIPSR2
1631 select CPU_SUPPORTS_HUGEPAGES
1632 help
1633 Netlogic Microsystems XLP processors.
1634 endchoice
1635
1636 config CPU_MIPS32_3_5_FEATURES
1637 bool "MIPS32 Release 3.5 Features"
1638 depends on SYS_HAS_CPU_MIPS32_R3_5
1639 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1640 help
1641 Choose this option to build a kernel for release 2 or later of the
1642 MIPS32 architecture including features from the 3.5 release such as
1643 support for Enhanced Virtual Addressing (EVA).
1644
1645 config CPU_MIPS32_3_5_EVA
1646 bool "Enhanced Virtual Addressing (EVA)"
1647 depends on CPU_MIPS32_3_5_FEATURES
1648 select EVA
1649 default y
1650 help
1651 Choose this option if you want to enable the Enhanced Virtual
1652 Addressing (EVA) on your MIPS32 core (such as proAptiv).
1653 One of its primary benefits is an increase in the maximum size
1654 of lowmem (up to 3GB). If unsure, say 'N' here.
1655
1656 config CPU_MIPS32_R5_FEATURES
1657 bool "MIPS32 Release 5 Features"
1658 depends on SYS_HAS_CPU_MIPS32_R5
1659 depends on CPU_MIPS32_R2
1660 help
1661 Choose this option to build a kernel for release 2 or later of the
1662 MIPS32 architecture including features from release 5 such as
1663 support for Extended Physical Addressing (XPA).
1664
1665 config CPU_MIPS32_R5_XPA
1666 bool "Extended Physical Addressing (XPA)"
1667 depends on CPU_MIPS32_R5_FEATURES
1668 depends on !EVA
1669 depends on !PAGE_SIZE_4KB
1670 depends on SYS_SUPPORTS_HIGHMEM
1671 select XPA
1672 select HIGHMEM
1673 select ARCH_PHYS_ADDR_T_64BIT
1674 default n
1675 help
1676 Choose this option if you want to enable the Extended Physical
1677 Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1678 benefit is to increase physical addressing equal to or greater
1679 than 40 bits. Note that this has the side effect of turning on
1680 64-bit addressing which in turn makes the PTEs 64-bit in size.
1681 If unsure, say 'N' here.
1682
1683 if CPU_LOONGSON2F
1684 config CPU_NOP_WORKAROUNDS
1685 bool
1686
1687 config CPU_JUMP_WORKAROUNDS
1688 bool
1689
1690 config CPU_LOONGSON2F_WORKAROUNDS
1691 bool "Loongson 2F Workarounds"
1692 default y
1693 select CPU_NOP_WORKAROUNDS
1694 select CPU_JUMP_WORKAROUNDS
1695 help
1696 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1697 require workarounds. Without workarounds the system may hang
1698 unexpectedly. For more information please refer to the gas
1699 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1700
1701 Loongson 2F03 and later have fixed these issues and no workarounds
1702 are needed. The workarounds have no significant side effect on them
1703 but may decrease the performance of the system so this option should
1704 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1705 systems.
1706
1707 If unsure, please say Y.
1708 endif # CPU_LOONGSON2F
1709
1710 config SYS_SUPPORTS_ZBOOT
1711 bool
1712 select HAVE_KERNEL_GZIP
1713 select HAVE_KERNEL_BZIP2
1714 select HAVE_KERNEL_LZ4
1715 select HAVE_KERNEL_LZMA
1716 select HAVE_KERNEL_LZO
1717 select HAVE_KERNEL_XZ
1718
1719 config SYS_SUPPORTS_ZBOOT_UART16550
1720 bool
1721 select SYS_SUPPORTS_ZBOOT
1722
1723 config CPU_LOONGSON2
1724 bool
1725 select CPU_SUPPORTS_32BIT_KERNEL
1726 select CPU_SUPPORTS_64BIT_KERNEL
1727 select CPU_SUPPORTS_HIGHMEM
1728 select CPU_SUPPORTS_HUGEPAGES
1729
1730 config CPU_LOONGSON1
1731 bool
1732 select CPU_MIPS32
1733 select CPU_MIPSR2
1734 select CPU_HAS_PREFETCH
1735 select CPU_SUPPORTS_32BIT_KERNEL
1736 select CPU_SUPPORTS_HIGHMEM
1737 select CPU_SUPPORTS_CPUFREQ
1738
1739 config CPU_BMIPS32_3300
1740 select SMP_UP if SMP
1741 bool
1742
1743 config CPU_BMIPS4350
1744 bool
1745 select SYS_SUPPORTS_SMP
1746 select SYS_SUPPORTS_HOTPLUG_CPU
1747
1748 config CPU_BMIPS4380
1749 bool
1750 select MIPS_L1_CACHE_SHIFT_6
1751 select SYS_SUPPORTS_SMP
1752 select SYS_SUPPORTS_HOTPLUG_CPU
1753
1754 config CPU_BMIPS5000
1755 bool
1756 select MIPS_CPU_SCACHE
1757 select MIPS_L1_CACHE_SHIFT_7
1758 select SYS_SUPPORTS_SMP
1759 select SYS_SUPPORTS_HOTPLUG_CPU
1760
1761 config SYS_HAS_CPU_LOONGSON3
1762 bool
1763 select CPU_SUPPORTS_CPUFREQ
1764
1765 config SYS_HAS_CPU_LOONGSON2E
1766 bool
1767
1768 config SYS_HAS_CPU_LOONGSON2F
1769 bool
1770 select CPU_SUPPORTS_CPUFREQ
1771 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1772 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1773
1774 config SYS_HAS_CPU_LOONGSON1B
1775 bool
1776
1777 config SYS_HAS_CPU_MIPS32_R1
1778 bool
1779
1780 config SYS_HAS_CPU_MIPS32_R2
1781 bool
1782
1783 config SYS_HAS_CPU_MIPS32_R3_5
1784 bool
1785
1786 config SYS_HAS_CPU_MIPS32_R5
1787 bool
1788
1789 config SYS_HAS_CPU_MIPS32_R6
1790 bool
1791
1792 config SYS_HAS_CPU_MIPS64_R1
1793 bool
1794
1795 config SYS_HAS_CPU_MIPS64_R2
1796 bool
1797
1798 config SYS_HAS_CPU_MIPS64_R6
1799 bool
1800
1801 config SYS_HAS_CPU_R3000
1802 bool
1803
1804 config SYS_HAS_CPU_TX39XX
1805 bool
1806
1807 config SYS_HAS_CPU_VR41XX
1808 bool
1809
1810 config SYS_HAS_CPU_R4300
1811 bool
1812
1813 config SYS_HAS_CPU_R4X00
1814 bool
1815
1816 config SYS_HAS_CPU_TX49XX
1817 bool
1818
1819 config SYS_HAS_CPU_R5000
1820 bool
1821
1822 config SYS_HAS_CPU_R5432
1823 bool
1824
1825 config SYS_HAS_CPU_R5500
1826 bool
1827
1828 config SYS_HAS_CPU_R6000
1829 bool
1830
1831 config SYS_HAS_CPU_NEVADA
1832 bool
1833
1834 config SYS_HAS_CPU_R8000
1835 bool
1836
1837 config SYS_HAS_CPU_R10000
1838 bool
1839
1840 config SYS_HAS_CPU_RM7000
1841 bool
1842
1843 config SYS_HAS_CPU_SB1
1844 bool
1845
1846 config SYS_HAS_CPU_CAVIUM_OCTEON
1847 bool
1848
1849 config SYS_HAS_CPU_BMIPS
1850 bool
1851
1852 config SYS_HAS_CPU_BMIPS32_3300
1853 bool
1854 select SYS_HAS_CPU_BMIPS
1855
1856 config SYS_HAS_CPU_BMIPS4350
1857 bool
1858 select SYS_HAS_CPU_BMIPS
1859
1860 config SYS_HAS_CPU_BMIPS4380
1861 bool
1862 select SYS_HAS_CPU_BMIPS
1863
1864 config SYS_HAS_CPU_BMIPS5000
1865 bool
1866 select SYS_HAS_CPU_BMIPS
1867
1868 config SYS_HAS_CPU_XLR
1869 bool
1870
1871 config SYS_HAS_CPU_XLP
1872 bool
1873
1874 config MIPS_MALTA_PM
1875 depends on MIPS_MALTA
1876 depends on PCI
1877 bool
1878 default y
1879
1880 #
1881 # CPU may reorder R->R, R->W, W->R, W->W
1882 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1883 #
1884 config WEAK_ORDERING
1885 bool
1886
1887 #
1888 # CPU may reorder reads and writes beyond LL/SC
1889 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1890 #
1891 config WEAK_REORDERING_BEYOND_LLSC
1892 bool
1893 endmenu
1894
1895 #
1896 # These two indicate any level of the MIPS32 and MIPS64 architecture
1897 #
1898 config CPU_MIPS32
1899 bool
1900 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
1901
1902 config CPU_MIPS64
1903 bool
1904 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
1905
1906 #
1907 # These two indicate the revision of the architecture, either Release 1 or Release 2
1908 #
1909 config CPU_MIPSR1
1910 bool
1911 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1912
1913 config CPU_MIPSR2
1914 bool
1915 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1916 select MIPS_SPRAM
1917
1918 config CPU_MIPSR6
1919 bool
1920 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
1921 select MIPS_SPRAM
1922
1923 config EVA
1924 bool
1925
1926 config XPA
1927 bool
1928
1929 config SYS_SUPPORTS_32BIT_KERNEL
1930 bool
1931 config SYS_SUPPORTS_64BIT_KERNEL
1932 bool
1933 config CPU_SUPPORTS_32BIT_KERNEL
1934 bool
1935 config CPU_SUPPORTS_64BIT_KERNEL
1936 bool
1937 config CPU_SUPPORTS_CPUFREQ
1938 bool
1939 config CPU_SUPPORTS_ADDRWINCFG
1940 bool
1941 config CPU_SUPPORTS_HUGEPAGES
1942 bool
1943 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1944 bool
1945 config MIPS_PGD_C0_CONTEXT
1946 bool
1947 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1948
1949 #
1950 # Set to y for ptrace access to watch registers.
1951 #
1952 config HARDWARE_WATCHPOINTS
1953 bool
1954 default y if CPU_MIPSR1 || CPU_MIPSR2
1955
1956 menu "Kernel type"
1957
1958 choice
1959 prompt "Kernel code model"
1960 help
1961 You should only select this option if you have a workload that
1962 actually benefits from 64-bit processing or if your machine has
1963 large memory. You will only be presented a single option in this
1964 menu if your system does not support both 32-bit and 64-bit kernels.
1965
1966 config 32BIT
1967 bool "32-bit kernel"
1968 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1969 select TRAD_SIGNALS
1970 help
1971 Select this option if you want to build a 32-bit kernel.
1972 config 64BIT
1973 bool "64-bit kernel"
1974 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1975 help
1976 Select this option if you want to build a 64-bit kernel.
1977
1978 endchoice
1979
1980 config KVM_GUEST
1981 bool "KVM Guest Kernel"
1982 depends on BROKEN_ON_SMP
1983 help
1984 Select this option if building a guest kernel for KVM (Trap & Emulate) mode
1985
1986 config KVM_GUEST_TIMER_FREQ
1987 int "Count/Compare Timer Frequency (MHz)"
1988 depends on KVM_GUEST
1989 default 100
1990 help
1991 Set this to non-zero if building a guest kernel for KVM to skip RTC
1992 emulation when determining guest CPU Frequency. Instead, the guest's
1993 timer frequency is specified directly.
1994
1995 choice
1996 prompt "Kernel page size"
1997 default PAGE_SIZE_4KB
1998
1999 config PAGE_SIZE_4KB
2000 bool "4kB"
2001 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
2002 help
2003 This option select the standard 4kB Linux page size. On some
2004 R3000-family processors this is the only available page size. Using
2005 4kB page size will minimize memory consumption and is therefore
2006 recommended for low memory systems.
2007
2008 config PAGE_SIZE_8KB
2009 bool "8kB"
2010 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
2011 help
2012 Using 8kB page size will result in higher performance kernel at
2013 the price of higher memory consumption. This option is available
2014 only on R8000 and cnMIPS processors. Note that you will need a
2015 suitable Linux distribution to support this.
2016
2017 config PAGE_SIZE_16KB
2018 bool "16kB"
2019 depends on !CPU_R3000 && !CPU_TX39XX
2020 help
2021 Using 16kB page size will result in higher performance kernel at
2022 the price of higher memory consumption. This option is available on
2023 all non-R3000 family processors. Note that you will need a suitable
2024 Linux distribution to support this.
2025
2026 config PAGE_SIZE_32KB
2027 bool "32kB"
2028 depends on CPU_CAVIUM_OCTEON
2029 help
2030 Using 32kB page size will result in higher performance kernel at
2031 the price of higher memory consumption. This option is available
2032 only on cnMIPS cores. Note that you will need a suitable Linux
2033 distribution to support this.
2034
2035 config PAGE_SIZE_64KB
2036 bool "64kB"
2037 depends on !CPU_R3000 && !CPU_TX39XX
2038 help
2039 Using 64kB page size will result in higher performance kernel at
2040 the price of higher memory consumption. This option is available on
2041 all non-R3000 family processor. Not that at the time of this
2042 writing this option is still high experimental.
2043
2044 endchoice
2045
2046 config FORCE_MAX_ZONEORDER
2047 int "Maximum zone order"
2048 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2049 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2050 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2051 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2052 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2053 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2054 range 11 64
2055 default "11"
2056 help
2057 The kernel memory allocator divides physically contiguous memory
2058 blocks into "zones", where each zone is a power of two number of
2059 pages. This option selects the largest power of two that the kernel
2060 keeps in the memory allocator. If you need to allocate very large
2061 blocks of physically contiguous memory, then you may need to
2062 increase this value.
2063
2064 This config option is actually maximum order plus one. For example,
2065 a value of 11 means that the largest free memory block is 2^10 pages.
2066
2067 The page size is not necessarily 4KB. Keep this in mind
2068 when choosing a value for this option.
2069
2070 config BOARD_SCACHE
2071 bool
2072
2073 config IP22_CPU_SCACHE
2074 bool
2075 select BOARD_SCACHE
2076
2077 #
2078 # Support for a MIPS32 / MIPS64 style S-caches
2079 #
2080 config MIPS_CPU_SCACHE
2081 bool
2082 select BOARD_SCACHE
2083
2084 config R5000_CPU_SCACHE
2085 bool
2086 select BOARD_SCACHE
2087
2088 config RM7000_CPU_SCACHE
2089 bool
2090 select BOARD_SCACHE
2091
2092 config SIBYTE_DMA_PAGEOPS
2093 bool "Use DMA to clear/copy pages"
2094 depends on CPU_SB1
2095 help
2096 Instead of using the CPU to zero and copy pages, use a Data Mover
2097 channel. These DMA channels are otherwise unused by the standard
2098 SiByte Linux port. Seems to give a small performance benefit.
2099
2100 config CPU_HAS_PREFETCH
2101 bool
2102
2103 config CPU_GENERIC_DUMP_TLB
2104 bool
2105 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
2106
2107 config CPU_R4K_FPU
2108 bool
2109 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2110
2111 config CPU_R4K_CACHE_TLB
2112 bool
2113 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2114
2115 config MIPS_MT_SMP
2116 bool "MIPS MT SMP support (1 TC on each available VPE)"
2117 depends on SYS_SUPPORTS_MULTITHREADING
2118 select CPU_MIPSR2_IRQ_VI
2119 select CPU_MIPSR2_IRQ_EI
2120 select SYNC_R4K
2121 select MIPS_GIC_IPI
2122 select MIPS_MT
2123 select SMP
2124 select SMP_UP
2125 select SYS_SUPPORTS_SMP
2126 select SYS_SUPPORTS_SCHED_SMT
2127 select MIPS_PERF_SHARED_TC_COUNTERS
2128 help
2129 This is a kernel model which is known as SMVP. This is supported
2130 on cores with the MT ASE and uses the available VPEs to implement
2131 virtual processors which supports SMP. This is equivalent to the
2132 Intel Hyperthreading feature. For further information go to
2133 <http://www.imgtec.com/mips/mips-multithreading.asp>.
2134
2135 config MIPS_MT
2136 bool
2137
2138 config SCHED_SMT
2139 bool "SMT (multithreading) scheduler support"
2140 depends on SYS_SUPPORTS_SCHED_SMT
2141 default n
2142 help
2143 SMT scheduler support improves the CPU scheduler's decision making
2144 when dealing with MIPS MT enabled cores at a cost of slightly
2145 increased overhead in some places. If unsure say N here.
2146
2147 config SYS_SUPPORTS_SCHED_SMT
2148 bool
2149
2150 config SYS_SUPPORTS_MULTITHREADING
2151 bool
2152
2153 config MIPS_MT_FPAFF
2154 bool "Dynamic FPU affinity for FP-intensive threads"
2155 default y
2156 depends on MIPS_MT_SMP
2157
2158 config MIPSR2_TO_R6_EMULATOR
2159 bool "MIPS R2-to-R6 emulator"
2160 depends on CPU_MIPSR6 && !SMP
2161 default y
2162 help
2163 Choose this option if you want to run non-R6 MIPS userland code.
2164 Even if you say 'Y' here, the emulator will still be disabled by
2165 default. You can enable it using the 'mipsr2emu' kernel option.
2166 The only reason this is a build-time option is to save ~14K from the
2167 final kernel image.
2168 comment "MIPS R2-to-R6 emulator is only available for UP kernels"
2169 depends on SMP && CPU_MIPSR6
2170
2171 config MIPS_VPE_LOADER
2172 bool "VPE loader support."
2173 depends on SYS_SUPPORTS_MULTITHREADING && MODULES
2174 select CPU_MIPSR2_IRQ_VI
2175 select CPU_MIPSR2_IRQ_EI
2176 select MIPS_MT
2177 help
2178 Includes a loader for loading an elf relocatable object
2179 onto another VPE and running it.
2180
2181 config MIPS_VPE_LOADER_CMP
2182 bool
2183 default "y"
2184 depends on MIPS_VPE_LOADER && MIPS_CMP
2185
2186 config MIPS_VPE_LOADER_MT
2187 bool
2188 default "y"
2189 depends on MIPS_VPE_LOADER && !MIPS_CMP
2190
2191 config MIPS_VPE_LOADER_TOM
2192 bool "Load VPE program into memory hidden from linux"
2193 depends on MIPS_VPE_LOADER
2194 default y
2195 help
2196 The loader can use memory that is present but has been hidden from
2197 Linux using the kernel command line option "mem=xxMB". It's up to
2198 you to ensure the amount you put in the option and the space your
2199 program requires is less or equal to the amount physically present.
2200
2201 config MIPS_VPE_APSP_API
2202 bool "Enable support for AP/SP API (RTLX)"
2203 depends on MIPS_VPE_LOADER
2204 help
2205
2206 config MIPS_VPE_APSP_API_CMP
2207 bool
2208 default "y"
2209 depends on MIPS_VPE_APSP_API && MIPS_CMP
2210
2211 config MIPS_VPE_APSP_API_MT
2212 bool
2213 default "y"
2214 depends on MIPS_VPE_APSP_API && !MIPS_CMP
2215
2216 config MIPS_CMP
2217 bool "MIPS CMP framework support (DEPRECATED)"
2218 depends on SYS_SUPPORTS_MIPS_CMP
2219 select MIPS_GIC_IPI
2220 select SMP
2221 select SYNC_R4K
2222 select SYS_SUPPORTS_SMP
2223 select WEAK_ORDERING
2224 default n
2225 help
2226 Select this if you are using a bootloader which implements the "CMP
2227 framework" protocol (ie. YAMON) and want your kernel to make use of
2228 its ability to start secondary CPUs.
2229
2230 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2231 instead of this.
2232
2233 config MIPS_CPS
2234 bool "MIPS Coherent Processing System support"
2235 depends on SYS_SUPPORTS_MIPS_CPS
2236 select MIPS_CM
2237 select MIPS_CPC
2238 select MIPS_CPS_PM if HOTPLUG_CPU
2239 select MIPS_GIC_IPI
2240 select SMP
2241 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2242 select SYS_SUPPORTS_HOTPLUG_CPU
2243 select SYS_SUPPORTS_SMP
2244 select WEAK_ORDERING
2245 help
2246 Select this if you wish to run an SMP kernel across multiple cores
2247 within a MIPS Coherent Processing System. When this option is
2248 enabled the kernel will probe for other cores and boot them with
2249 no external assistance. It is safe to enable this when hardware
2250 support is unavailable.
2251
2252 config MIPS_CPS_PM
2253 depends on MIPS_CPS
2254 select MIPS_CPC
2255 bool
2256
2257 config MIPS_GIC_IPI
2258 bool
2259
2260 config MIPS_CM
2261 bool
2262
2263 config MIPS_CPC
2264 bool
2265
2266 config SB1_PASS_1_WORKAROUNDS
2267 bool
2268 depends on CPU_SB1_PASS_1
2269 default y
2270
2271 config SB1_PASS_2_WORKAROUNDS
2272 bool
2273 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2274 default y
2275
2276 config SB1_PASS_2_1_WORKAROUNDS
2277 bool
2278 depends on CPU_SB1 && CPU_SB1_PASS_2
2279 default y
2280
2281
2282 config ARCH_PHYS_ADDR_T_64BIT
2283 bool
2284
2285 choice
2286 prompt "SmartMIPS or microMIPS ASE support"
2287
2288 config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2289 bool "None"
2290 help
2291 Select this if you want neither microMIPS nor SmartMIPS support
2292
2293 config CPU_HAS_SMARTMIPS
2294 depends on SYS_SUPPORTS_SMARTMIPS
2295 bool "SmartMIPS"
2296 help
2297 SmartMIPS is a extension of the MIPS32 architecture aimed at
2298 increased security at both hardware and software level for
2299 smartcards. Enabling this option will allow proper use of the
2300 SmartMIPS instructions by Linux applications. However a kernel with
2301 this option will not work on a MIPS core without SmartMIPS core. If
2302 you don't know you probably don't have SmartMIPS and should say N
2303 here.
2304
2305 config CPU_MICROMIPS
2306 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2307 bool "microMIPS"
2308 help
2309 When this option is enabled the kernel will be built using the
2310 microMIPS ISA
2311
2312 endchoice
2313
2314 config CPU_HAS_MSA
2315 bool "Support for the MIPS SIMD Architecture (EXPERIMENTAL)"
2316 depends on CPU_SUPPORTS_MSA
2317 depends on 64BIT || MIPS_O32_FP64_SUPPORT
2318 help
2319 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2320 and a set of SIMD instructions to operate on them. When this option
2321 is enabled the kernel will support allocating & switching MSA
2322 vector register contexts. If you know that your kernel will only be
2323 running on CPUs which do not support MSA or that your userland will
2324 not be making use of it then you may wish to say N here to reduce
2325 the size & complexity of your kernel.
2326
2327 If unsure, say Y.
2328
2329 config CPU_HAS_WB
2330 bool
2331
2332 config XKS01
2333 bool
2334
2335 #
2336 # Vectored interrupt mode is an R2 feature
2337 #
2338 config CPU_MIPSR2_IRQ_VI
2339 bool
2340
2341 #
2342 # Extended interrupt mode is an R2 feature
2343 #
2344 config CPU_MIPSR2_IRQ_EI
2345 bool
2346
2347 config CPU_HAS_SYNC
2348 bool
2349 depends on !CPU_R3000
2350 default y
2351
2352 #
2353 # CPU non-features
2354 #
2355 config CPU_DADDI_WORKAROUNDS
2356 bool
2357
2358 config CPU_R4000_WORKAROUNDS
2359 bool
2360 select CPU_R4400_WORKAROUNDS
2361
2362 config CPU_R4400_WORKAROUNDS
2363 bool
2364
2365 #
2366 # - Highmem only makes sense for the 32-bit kernel.
2367 # - The current highmem code will only work properly on physically indexed
2368 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2369 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2370 # moment we protect the user and offer the highmem option only on machines
2371 # where it's known to be safe. This will not offer highmem on a few systems
2372 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2373 # indexed CPUs but we're playing safe.
2374 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2375 # know they might have memory configurations that could make use of highmem
2376 # support.
2377 #
2378 config HIGHMEM
2379 bool "High Memory Support"
2380 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2381
2382 config CPU_SUPPORTS_HIGHMEM
2383 bool
2384
2385 config SYS_SUPPORTS_HIGHMEM
2386 bool
2387
2388 config SYS_SUPPORTS_SMARTMIPS
2389 bool
2390
2391 config SYS_SUPPORTS_MICROMIPS
2392 bool
2393
2394 config SYS_SUPPORTS_MIPS16
2395 bool
2396 help
2397 This option must be set if a kernel might be executed on a MIPS16-
2398 enabled CPU even if MIPS16 is not actually being used. In other
2399 words, it makes the kernel MIPS16-tolerant.
2400
2401 config CPU_SUPPORTS_MSA
2402 bool
2403
2404 config ARCH_FLATMEM_ENABLE
2405 def_bool y
2406 depends on !NUMA && !CPU_LOONGSON2
2407
2408 config ARCH_DISCONTIGMEM_ENABLE
2409 bool
2410 default y if SGI_IP27
2411 help
2412 Say Y to support efficient handling of discontiguous physical memory,
2413 for architectures which are either NUMA (Non-Uniform Memory Access)
2414 or have huge holes in the physical address space for other reasons.
2415 See <file:Documentation/vm/numa> for more.
2416
2417 config ARCH_SPARSEMEM_ENABLE
2418 bool
2419 select SPARSEMEM_STATIC
2420
2421 config NUMA
2422 bool "NUMA Support"
2423 depends on SYS_SUPPORTS_NUMA
2424 help
2425 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2426 Access). This option improves performance on systems with more
2427 than two nodes; on two node systems it is generally better to
2428 leave it disabled; on single node systems disable this option
2429 disabled.
2430
2431 config SYS_SUPPORTS_NUMA
2432 bool
2433
2434 config NODES_SHIFT
2435 int
2436 default "6"
2437 depends on NEED_MULTIPLE_NODES
2438
2439 config HW_PERF_EVENTS
2440 bool "Enable hardware performance counter support for perf events"
2441 depends on PERF_EVENTS && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2442 default y
2443 help
2444 Enable hardware performance counter support for perf events. If
2445 disabled, perf events will use software events only.
2446
2447 source "mm/Kconfig"
2448
2449 config SMP
2450 bool "Multi-Processing support"
2451 depends on SYS_SUPPORTS_SMP
2452 help
2453 This enables support for systems with more than one CPU. If you have
2454 a system with only one CPU, say N. If you have a system with more
2455 than one CPU, say Y.
2456
2457 If you say N here, the kernel will run on uni- and multiprocessor
2458 machines, but will use only one CPU of a multiprocessor machine. If
2459 you say Y here, the kernel will run on many, but not all,
2460 uniprocessor machines. On a uniprocessor machine, the kernel
2461 will run faster if you say N here.
2462
2463 People using multiprocessor machines who say Y here should also say
2464 Y to "Enhanced Real Time Clock Support", below.
2465
2466 See also the SMP-HOWTO available at
2467 <http://www.tldp.org/docs.html#howto>.
2468
2469 If you don't know what to do here, say N.
2470
2471 config SMP_UP
2472 bool
2473
2474 config SYS_SUPPORTS_MIPS_CMP
2475 bool
2476
2477 config SYS_SUPPORTS_MIPS_CPS
2478 bool
2479
2480 config SYS_SUPPORTS_SMP
2481 bool
2482
2483 config NR_CPUS_DEFAULT_4
2484 bool
2485
2486 config NR_CPUS_DEFAULT_8
2487 bool
2488
2489 config NR_CPUS_DEFAULT_16
2490 bool
2491
2492 config NR_CPUS_DEFAULT_32
2493 bool
2494
2495 config NR_CPUS_DEFAULT_64
2496 bool
2497
2498 config NR_CPUS
2499 int "Maximum number of CPUs (2-256)"
2500 range 2 256
2501 depends on SMP
2502 default "4" if NR_CPUS_DEFAULT_4
2503 default "8" if NR_CPUS_DEFAULT_8
2504 default "16" if NR_CPUS_DEFAULT_16
2505 default "32" if NR_CPUS_DEFAULT_32
2506 default "64" if NR_CPUS_DEFAULT_64
2507 help
2508 This allows you to specify the maximum number of CPUs which this
2509 kernel will support. The maximum supported value is 32 for 32-bit
2510 kernel and 64 for 64-bit kernels; the minimum value which makes
2511 sense is 1 for Qemu (useful only for kernel debugging purposes)
2512 and 2 for all others.
2513
2514 This is purely to save memory - each supported CPU adds
2515 approximately eight kilobytes to the kernel image. For best
2516 performance should round up your number of processors to the next
2517 power of two.
2518
2519 config MIPS_PERF_SHARED_TC_COUNTERS
2520 bool
2521
2522 #
2523 # Timer Interrupt Frequency Configuration
2524 #
2525
2526 choice
2527 prompt "Timer frequency"
2528 default HZ_250
2529 help
2530 Allows the configuration of the timer frequency.
2531
2532 config HZ_48
2533 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2534
2535 config HZ_100
2536 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2537
2538 config HZ_128
2539 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2540
2541 config HZ_250
2542 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2543
2544 config HZ_256
2545 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2546
2547 config HZ_1000
2548 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2549
2550 config HZ_1024
2551 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2552
2553 endchoice
2554
2555 config SYS_SUPPORTS_48HZ
2556 bool
2557
2558 config SYS_SUPPORTS_100HZ
2559 bool
2560
2561 config SYS_SUPPORTS_128HZ
2562 bool
2563
2564 config SYS_SUPPORTS_250HZ
2565 bool
2566
2567 config SYS_SUPPORTS_256HZ
2568 bool
2569
2570 config SYS_SUPPORTS_1000HZ
2571 bool
2572
2573 config SYS_SUPPORTS_1024HZ
2574 bool
2575
2576 config SYS_SUPPORTS_ARBIT_HZ
2577 bool
2578 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2579 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2580 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2581 !SYS_SUPPORTS_1024HZ
2582
2583 config HZ
2584 int
2585 default 48 if HZ_48
2586 default 100 if HZ_100
2587 default 128 if HZ_128
2588 default 250 if HZ_250
2589 default 256 if HZ_256
2590 default 1000 if HZ_1000
2591 default 1024 if HZ_1024
2592
2593 config SCHED_HRTICK
2594 def_bool HIGH_RES_TIMERS
2595
2596 source "kernel/Kconfig.preempt"
2597
2598 config KEXEC
2599 bool "Kexec system call"
2600 help
2601 kexec is a system call that implements the ability to shutdown your
2602 current kernel, and to start another kernel. It is like a reboot
2603 but it is independent of the system firmware. And like a reboot
2604 you can start any kernel with it, not just Linux.
2605
2606 The name comes from the similarity to the exec system call.
2607
2608 It is an ongoing process to be certain the hardware in a machine
2609 is properly shutdown, so do not be surprised if this code does not
2610 initially work for you. As of this writing the exact hardware
2611 interface is strongly in flux, so no good recommendation can be
2612 made.
2613
2614 config CRASH_DUMP
2615 bool "Kernel crash dumps"
2616 help
2617 Generate crash dump after being started by kexec.
2618 This should be normally only set in special crash dump kernels
2619 which are loaded in the main kernel with kexec-tools into
2620 a specially reserved region and then later executed after
2621 a crash by kdump/kexec. The crash dump kernel must be compiled
2622 to a memory address not used by the main kernel or firmware using
2623 PHYSICAL_START.
2624
2625 config PHYSICAL_START
2626 hex "Physical address where the kernel is loaded"
2627 default "0xffffffff84000000" if 64BIT
2628 default "0x84000000" if 32BIT
2629 depends on CRASH_DUMP
2630 help
2631 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2632 If you plan to use kernel for capturing the crash dump change
2633 this value to start of the reserved region (the "X" value as
2634 specified in the "crashkernel=YM@XM" command line boot parameter
2635 passed to the panic-ed kernel).
2636
2637 config SECCOMP
2638 bool "Enable seccomp to safely compute untrusted bytecode"
2639 depends on PROC_FS
2640 default y
2641 help
2642 This kernel feature is useful for number crunching applications
2643 that may need to compute untrusted bytecode during their
2644 execution. By using pipes or other transports made available to
2645 the process as file descriptors supporting the read/write
2646 syscalls, it's possible to isolate those applications in
2647 their own address space using seccomp. Once seccomp is
2648 enabled via /proc/<pid>/seccomp, it cannot be disabled
2649 and the task is only allowed to execute a few safe syscalls
2650 defined by each seccomp mode.
2651
2652 If unsure, say Y. Only embedded should say N here.
2653
2654 config MIPS_O32_FP64_SUPPORT
2655 bool "Support for O32 binaries using 64-bit FP (EXPERIMENTAL)"
2656 depends on 32BIT || MIPS32_O32
2657 help
2658 When this is enabled, the kernel will support use of 64-bit floating
2659 point registers with binaries using the O32 ABI along with the
2660 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2661 32-bit MIPS systems this support is at the cost of increasing the
2662 size and complexity of the compiled FPU emulator. Thus if you are
2663 running a MIPS32 system and know that none of your userland binaries
2664 will require 64-bit floating point, you may wish to reduce the size
2665 of your kernel & potentially improve FP emulation performance by
2666 saying N here.
2667
2668 Although binutils currently supports use of this flag the details
2669 concerning its effect upon the O32 ABI in userland are still being
2670 worked on. In order to avoid userland becoming dependant upon current
2671 behaviour before the details have been finalised, this option should
2672 be considered experimental and only enabled by those working upon
2673 said details.
2674
2675 If unsure, say N.
2676
2677 config USE_OF
2678 bool
2679 select OF
2680 select OF_EARLY_FLATTREE
2681 select IRQ_DOMAIN
2682
2683 config BUILTIN_DTB
2684 bool
2685
2686 choice
2687 prompt "Kernel appended dtb support" if OF
2688 default MIPS_NO_APPENDED_DTB
2689
2690 config MIPS_NO_APPENDED_DTB
2691 bool "None"
2692 help
2693 Do not enable appended dtb support.
2694
2695 config MIPS_RAW_APPENDED_DTB
2696 bool "vmlinux.bin"
2697 help
2698 With this option, the boot code will look for a device tree binary
2699 DTB) appended to raw vmlinux.bin (without decompressor).
2700 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
2701
2702 This is meant as a backward compatibility convenience for those
2703 systems with a bootloader that can't be upgraded to accommodate
2704 the documented boot protocol using a device tree.
2705
2706 Beware that there is very little in terms of protection against
2707 this option being confused by leftover garbage in memory that might
2708 look like a DTB header after a reboot if no actual DTB is appended
2709 to vmlinux.bin. Do not leave this option active in a production kernel
2710 if you don't intend to always append a DTB.
2711
2712 config MIPS_ZBOOT_APPENDED_DTB
2713 bool "vmlinuz.bin"
2714 depends on SYS_SUPPORTS_ZBOOT
2715 help
2716 With this option, the boot code will look for a device tree binary
2717 DTB) appended to raw vmlinuz.bin (with decompressor).
2718 (e.g. cat vmlinuz.bin <filename>.dtb > vmlinuz_w_dtb).
2719
2720 This is meant as a backward compatibility convenience for those
2721 systems with a bootloader that can't be upgraded to accommodate
2722 the documented boot protocol using a device tree.
2723
2724 Beware that there is very little in terms of protection against
2725 this option being confused by leftover garbage in memory that might
2726 look like a DTB header after a reboot if no actual DTB is appended
2727 to vmlinuz.bin. Do not leave this option active in a production kernel
2728 if you don't intend to always append a DTB.
2729 endchoice
2730
2731 endmenu
2732
2733 config LOCKDEP_SUPPORT
2734 bool
2735 default y
2736
2737 config STACKTRACE_SUPPORT
2738 bool
2739 default y
2740
2741 config PGTABLE_LEVELS
2742 int
2743 default 3 if 64BIT && !PAGE_SIZE_64KB
2744 default 2
2745
2746 source "init/Kconfig"
2747
2748 source "kernel/Kconfig.freezer"
2749
2750 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2751
2752 config HW_HAS_EISA
2753 bool
2754 config HW_HAS_PCI
2755 bool
2756
2757 config PCI
2758 bool "Support for PCI controller"
2759 depends on HW_HAS_PCI
2760 select PCI_DOMAINS
2761 select NO_GENERIC_PCI_IOPORT_MAP
2762 help
2763 Find out whether you have a PCI motherboard. PCI is the name of a
2764 bus system, i.e. the way the CPU talks to the other stuff inside
2765 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2766 say Y, otherwise N.
2767
2768 config HT_PCI
2769 bool "Support for HT-linked PCI"
2770 default y
2771 depends on CPU_LOONGSON3
2772 select PCI
2773 select PCI_DOMAINS
2774 help
2775 Loongson family machines use Hyper-Transport bus for inter-core
2776 connection and device connection. The PCI bus is a subordinate
2777 linked at HT. Choose Y for Loongson-3 based machines.
2778
2779 config PCI_DOMAINS
2780 bool
2781
2782 source "drivers/pci/Kconfig"
2783
2784 source "drivers/pci/pcie/Kconfig"
2785
2786 #
2787 # ISA support is now enabled via select. Too many systems still have the one
2788 # or other ISA chip on the board that users don't know about so don't expect
2789 # users to choose the right thing ...
2790 #
2791 config ISA
2792 bool
2793
2794 config EISA
2795 bool "EISA support"
2796 depends on HW_HAS_EISA
2797 select ISA
2798 select GENERIC_ISA_DMA
2799 ---help---
2800 The Extended Industry Standard Architecture (EISA) bus was
2801 developed as an open alternative to the IBM MicroChannel bus.
2802
2803 The EISA bus provided some of the features of the IBM MicroChannel
2804 bus while maintaining backward compatibility with cards made for
2805 the older ISA bus. The EISA bus saw limited use between 1988 and
2806 1995 when it was made obsolete by the PCI bus.
2807
2808 Say Y here if you are building a kernel for an EISA-based machine.
2809
2810 Otherwise, say N.
2811
2812 source "drivers/eisa/Kconfig"
2813
2814 config TC
2815 bool "TURBOchannel support"
2816 depends on MACH_DECSTATION
2817 help
2818 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2819 processors. TURBOchannel programming specifications are available
2820 at:
2821 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2822 and:
2823 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2824 Linux driver support status is documented at:
2825 <http://www.linux-mips.org/wiki/DECstation>
2826
2827 config MMU
2828 bool
2829 default y
2830
2831 config I8253
2832 bool
2833 select CLKSRC_I8253
2834 select CLKEVT_I8253
2835 select MIPS_EXTERNAL_TIMER
2836
2837 config ZONE_DMA
2838 bool
2839
2840 config ZONE_DMA32
2841 bool
2842
2843 source "drivers/pcmcia/Kconfig"
2844
2845 source "drivers/pci/hotplug/Kconfig"
2846
2847 config RAPIDIO
2848 tristate "RapidIO support"
2849 depends on PCI
2850 default n
2851 help
2852 If you say Y here, the kernel will include drivers and
2853 infrastructure code to support RapidIO interconnect devices.
2854
2855 source "drivers/rapidio/Kconfig"
2856
2857 endmenu
2858
2859 menu "Executable file formats"
2860
2861 source "fs/Kconfig.binfmt"
2862
2863 config TRAD_SIGNALS
2864 bool
2865
2866 config MIPS32_COMPAT
2867 bool
2868
2869 config COMPAT
2870 bool
2871
2872 config SYSVIPC_COMPAT
2873 bool
2874
2875 config MIPS32_O32
2876 bool "Kernel support for o32 binaries"
2877 depends on 64BIT
2878 select ARCH_WANT_OLD_COMPAT_IPC
2879 select COMPAT
2880 select MIPS32_COMPAT
2881 select SYSVIPC_COMPAT if SYSVIPC
2882 help
2883 Select this option if you want to run o32 binaries. These are pure
2884 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2885 existing binaries are in this format.
2886
2887 If unsure, say Y.
2888
2889 config MIPS32_N32
2890 bool "Kernel support for n32 binaries"
2891 depends on 64BIT
2892 select COMPAT
2893 select MIPS32_COMPAT
2894 select SYSVIPC_COMPAT if SYSVIPC
2895 help
2896 Select this option if you want to run n32 binaries. These are
2897 64-bit binaries using 32-bit quantities for addressing and certain
2898 data that would normally be 64-bit. They are used in special
2899 cases.
2900
2901 If unsure, say N.
2902
2903 config BINFMT_ELF32
2904 bool
2905 default y if MIPS32_O32 || MIPS32_N32
2906
2907 endmenu
2908
2909 menu "Power management options"
2910
2911 config ARCH_HIBERNATION_POSSIBLE
2912 def_bool y
2913 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2914
2915 config ARCH_SUSPEND_POSSIBLE
2916 def_bool y
2917 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2918
2919 source "kernel/power/Kconfig"
2920
2921 endmenu
2922
2923 config MIPS_EXTERNAL_TIMER
2924 bool
2925
2926 menu "CPU Power Management"
2927
2928 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
2929 source "drivers/cpufreq/Kconfig"
2930 endif
2931
2932 source "drivers/cpuidle/Kconfig"
2933
2934 endmenu
2935
2936 source "net/Kconfig"
2937
2938 source "drivers/Kconfig"
2939
2940 source "drivers/firmware/Kconfig"
2941
2942 source "fs/Kconfig"
2943
2944 source "arch/mips/Kconfig.debug"
2945
2946 source "security/Kconfig"
2947
2948 source "crypto/Kconfig"
2949
2950 source "lib/Kconfig"
2951
2952 source "arch/mips/kvm/Kconfig"
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