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