Merge tag 'arc-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
[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_DEBUG_KMEMLEAK
25 select HAVE_SYSCALL_TRACEPOINTS
26 select ARCH_HAS_ELF_RANDOMIZE
27 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
28 select RTC_LIB if !MACH_LOONGSON
29 select GENERIC_ATOMIC64 if !64BIT
30 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
31 select HAVE_DMA_ATTRS
32 select HAVE_DMA_CONTIGUOUS
33 select HAVE_DMA_API_DEBUG
34 select GENERIC_IRQ_PROBE
35 select GENERIC_IRQ_SHOW
36 select GENERIC_PCI_IOMAP
37 select HAVE_ARCH_JUMP_LABEL
38 select ARCH_WANT_IPC_PARSE_VERSION
39 select IRQ_FORCED_THREADING
40 select HAVE_MEMBLOCK
41 select HAVE_MEMBLOCK_NODE_MAP
42 select ARCH_DISCARD_MEMBLOCK
43 select GENERIC_SMP_IDLE_THREAD
44 select BUILDTIME_EXTABLE_SORT
45 select GENERIC_CLOCKEVENTS
46 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
47 select GENERIC_CMOS_UPDATE
48 select HAVE_MOD_ARCH_SPECIFIC
49 select VIRT_TO_BUS
50 select MODULES_USE_ELF_REL if MODULES
51 select MODULES_USE_ELF_RELA if MODULES && 64BIT
52 select CLONE_BACKWARDS
53 select HAVE_DEBUG_STACKOVERFLOW
54 select HAVE_CC_STACKPROTECTOR
55 select CPU_PM if CPU_IDLE
56 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
57 select ARCH_BINFMT_ELF_STATE
58 select SYSCTL_EXCEPTION_TRACE
59 select HAVE_VIRT_CPU_ACCOUNTING_GEN
60 select HAVE_IRQ_TIME_ACCOUNTING
61
62 menu "Machine selection"
63
64 choice
65 prompt "System type"
66 default SGI_IP22
67
68 config MIPS_ALCHEMY
69 bool "Alchemy processor based machines"
70 select ARCH_PHYS_ADDR_T_64BIT
71 select CEVT_R4K
72 select CSRC_R4K
73 select IRQ_CPU
74 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is
75 select SYS_HAS_CPU_MIPS32_R1
76 select SYS_SUPPORTS_32BIT_KERNEL
77 select SYS_SUPPORTS_APM_EMULATION
78 select ARCH_REQUIRE_GPIOLIB
79 select SYS_SUPPORTS_ZBOOT
80 select COMMON_CLK
81
82 config AR7
83 bool "Texas Instruments AR7"
84 select BOOT_ELF32
85 select DMA_NONCOHERENT
86 select CEVT_R4K
87 select CSRC_R4K
88 select IRQ_CPU
89 select NO_EXCEPT_FILL
90 select SWAP_IO_SPACE
91 select SYS_HAS_CPU_MIPS32_R1
92 select SYS_HAS_EARLY_PRINTK
93 select SYS_SUPPORTS_32BIT_KERNEL
94 select SYS_SUPPORTS_LITTLE_ENDIAN
95 select SYS_SUPPORTS_MIPS16
96 select SYS_SUPPORTS_ZBOOT_UART16550
97 select ARCH_REQUIRE_GPIOLIB
98 select VLYNQ
99 select HAVE_CLK
100 help
101 Support for the Texas Instruments AR7 System-on-a-Chip
102 family: TNETD7100, 7200 and 7300.
103
104 config ATH25
105 bool "Atheros AR231x/AR531x SoC support"
106 select CEVT_R4K
107 select CSRC_R4K
108 select DMA_NONCOHERENT
109 select IRQ_CPU
110 select IRQ_DOMAIN
111 select SYS_HAS_CPU_MIPS32_R1
112 select SYS_SUPPORTS_BIG_ENDIAN
113 select SYS_SUPPORTS_32BIT_KERNEL
114 select SYS_HAS_EARLY_PRINTK
115 help
116 Support for Atheros AR231x and Atheros AR531x based boards
117
118 config ATH79
119 bool "Atheros AR71XX/AR724X/AR913X based boards"
120 select ARCH_REQUIRE_GPIOLIB
121 select BOOT_RAW
122 select CEVT_R4K
123 select CSRC_R4K
124 select DMA_NONCOHERENT
125 select HAVE_CLK
126 select CLKDEV_LOOKUP
127 select IRQ_CPU
128 select MIPS_MACHINE
129 select SYS_HAS_CPU_MIPS32_R2
130 select SYS_HAS_EARLY_PRINTK
131 select SYS_SUPPORTS_32BIT_KERNEL
132 select SYS_SUPPORTS_BIG_ENDIAN
133 select SYS_SUPPORTS_MIPS16
134 help
135 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
136
137 config BMIPS_GENERIC
138 bool "Broadcom Generic BMIPS kernel"
139 select BOOT_RAW
140 select NO_EXCEPT_FILL
141 select USE_OF
142 select CEVT_R4K
143 select CSRC_R4K
144 select SYNC_R4K
145 select COMMON_CLK
146 select BCM7038_L1_IRQ
147 select BCM7120_L2_IRQ
148 select BRCMSTB_L2_IRQ
149 select IRQ_CPU
150 select RAW_IRQ_ACCESSORS
151 select DMA_NONCOHERENT
152 select SYS_SUPPORTS_32BIT_KERNEL
153 select SYS_SUPPORTS_LITTLE_ENDIAN
154 select SYS_SUPPORTS_BIG_ENDIAN
155 select SYS_SUPPORTS_HIGHMEM
156 select SYS_HAS_CPU_BMIPS32_3300
157 select SYS_HAS_CPU_BMIPS4350
158 select SYS_HAS_CPU_BMIPS4380
159 select SYS_HAS_CPU_BMIPS5000
160 select SWAP_IO_SPACE
161 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
162 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
163 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
164 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
165 help
166 Build a generic DT-based kernel image that boots on select
167 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
168 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
169 must be set appropriately for your board.
170
171 config BCM47XX
172 bool "Broadcom BCM47XX based boards"
173 select ARCH_WANT_OPTIONAL_GPIOLIB
174 select BOOT_RAW
175 select CEVT_R4K
176 select CSRC_R4K
177 select DMA_NONCOHERENT
178 select HW_HAS_PCI
179 select IRQ_CPU
180 select SYS_HAS_CPU_MIPS32_R1
181 select NO_EXCEPT_FILL
182 select SYS_SUPPORTS_32BIT_KERNEL
183 select SYS_SUPPORTS_LITTLE_ENDIAN
184 select SYS_SUPPORTS_MIPS16
185 select SYS_HAS_EARLY_PRINTK
186 select USE_GENERIC_EARLY_PRINTK_8250
187 select GPIOLIB
188 select LEDS_GPIO_REGISTER
189 help
190 Support for BCM47XX based boards
191
192 config BCM63XX
193 bool "Broadcom BCM63XX based boards"
194 select BOOT_RAW
195 select CEVT_R4K
196 select CSRC_R4K
197 select SYNC_R4K
198 select DMA_NONCOHERENT
199 select IRQ_CPU
200 select SYS_SUPPORTS_32BIT_KERNEL
201 select SYS_SUPPORTS_BIG_ENDIAN
202 select SYS_HAS_EARLY_PRINTK
203 select SWAP_IO_SPACE
204 select ARCH_REQUIRE_GPIOLIB
205 select HAVE_CLK
206 select MIPS_L1_CACHE_SHIFT_4
207 help
208 Support for BCM63XX based boards
209
210 config MIPS_COBALT
211 bool "Cobalt Server"
212 select CEVT_R4K
213 select CSRC_R4K
214 select CEVT_GT641XX
215 select DMA_NONCOHERENT
216 select HW_HAS_PCI
217 select I8253
218 select I8259
219 select IRQ_CPU
220 select IRQ_GT641XX
221 select PCI_GT64XXX_PCI0
222 select PCI
223 select SYS_HAS_CPU_NEVADA
224 select SYS_HAS_EARLY_PRINTK
225 select SYS_SUPPORTS_32BIT_KERNEL
226 select SYS_SUPPORTS_64BIT_KERNEL
227 select SYS_SUPPORTS_LITTLE_ENDIAN
228 select USE_GENERIC_EARLY_PRINTK_8250
229
230 config MACH_DECSTATION
231 bool "DECstations"
232 select BOOT_ELF32
233 select CEVT_DS1287
234 select CEVT_R4K if CPU_R4X00
235 select CSRC_IOASIC
236 select CSRC_R4K if CPU_R4X00
237 select CPU_DADDI_WORKAROUNDS if 64BIT
238 select CPU_R4000_WORKAROUNDS if 64BIT
239 select CPU_R4400_WORKAROUNDS if 64BIT
240 select DMA_NONCOHERENT
241 select NO_IOPORT_MAP
242 select IRQ_CPU
243 select SYS_HAS_CPU_R3000
244 select SYS_HAS_CPU_R4X00
245 select SYS_SUPPORTS_32BIT_KERNEL
246 select SYS_SUPPORTS_64BIT_KERNEL
247 select SYS_SUPPORTS_LITTLE_ENDIAN
248 select SYS_SUPPORTS_128HZ
249 select SYS_SUPPORTS_256HZ
250 select SYS_SUPPORTS_1024HZ
251 select MIPS_L1_CACHE_SHIFT_4
252 help
253 This enables support for DEC's MIPS based workstations. For details
254 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
255 DECstation porting pages on <http://decstation.unix-ag.org/>.
256
257 If you have one of the following DECstation Models you definitely
258 want to choose R4xx0 for the CPU Type:
259
260 DECstation 5000/50
261 DECstation 5000/150
262 DECstation 5000/260
263 DECsystem 5900/260
264
265 otherwise choose R3000.
266
267 config MACH_JAZZ
268 bool "Jazz family of machines"
269 select FW_ARC
270 select FW_ARC32
271 select ARCH_MAY_HAVE_PC_FDC
272 select CEVT_R4K
273 select CSRC_R4K
274 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
275 select GENERIC_ISA_DMA
276 select HAVE_PCSPKR_PLATFORM
277 select IRQ_CPU
278 select I8253
279 select I8259
280 select ISA
281 select SYS_HAS_CPU_R4X00
282 select SYS_SUPPORTS_32BIT_KERNEL
283 select SYS_SUPPORTS_64BIT_KERNEL
284 select SYS_SUPPORTS_100HZ
285 help
286 This a family of machines based on the MIPS R4030 chipset which was
287 used by several vendors to build RISC/os and Windows NT workstations.
288 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
289 Olivetti M700-10 workstations.
290
291 config MACH_JZ4740
292 bool "Ingenic JZ4740 based machines"
293 select SYS_HAS_CPU_MIPS32_R1
294 select SYS_SUPPORTS_32BIT_KERNEL
295 select SYS_SUPPORTS_LITTLE_ENDIAN
296 select SYS_SUPPORTS_ZBOOT_UART16550
297 select DMA_NONCOHERENT
298 select IRQ_CPU
299 select ARCH_REQUIRE_GPIOLIB
300 select SYS_HAS_EARLY_PRINTK
301 select HAVE_CLK
302 select GENERIC_IRQ_CHIP
303
304 config LANTIQ
305 bool "Lantiq based platforms"
306 select DMA_NONCOHERENT
307 select IRQ_CPU
308 select CEVT_R4K
309 select CSRC_R4K
310 select SYS_HAS_CPU_MIPS32_R1
311 select SYS_HAS_CPU_MIPS32_R2
312 select SYS_SUPPORTS_BIG_ENDIAN
313 select SYS_SUPPORTS_32BIT_KERNEL
314 select SYS_SUPPORTS_MIPS16
315 select SYS_SUPPORTS_MULTITHREADING
316 select SYS_HAS_EARLY_PRINTK
317 select ARCH_REQUIRE_GPIOLIB
318 select SWAP_IO_SPACE
319 select BOOT_RAW
320 select HAVE_MACH_CLKDEV
321 select CLKDEV_LOOKUP
322 select USE_OF
323 select PINCTRL
324 select PINCTRL_LANTIQ
325 select ARCH_HAS_RESET_CONTROLLER
326 select RESET_CONTROLLER
327
328 config LASAT
329 bool "LASAT Networks platforms"
330 select CEVT_R4K
331 select CRC32
332 select CSRC_R4K
333 select DMA_NONCOHERENT
334 select SYS_HAS_EARLY_PRINTK
335 select HW_HAS_PCI
336 select IRQ_CPU
337 select PCI_GT64XXX_PCI0
338 select MIPS_NILE4
339 select R5000_CPU_SCACHE
340 select SYS_HAS_CPU_R5000
341 select SYS_SUPPORTS_32BIT_KERNEL
342 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
343 select SYS_SUPPORTS_LITTLE_ENDIAN
344
345 config MACH_LOONGSON
346 bool "Loongson family of machines"
347 select SYS_SUPPORTS_ZBOOT
348 help
349 This enables the support of Loongson family of machines.
350
351 Loongson is a family of general-purpose MIPS-compatible CPUs.
352 developed at Institute of Computing Technology (ICT),
353 Chinese Academy of Sciences (CAS) in the People's Republic
354 of China. The chief architect is Professor Weiwu Hu.
355
356 config MACH_LOONGSON1
357 bool "Loongson 1 family of machines"
358 select SYS_SUPPORTS_ZBOOT
359 help
360 This enables support for the Loongson 1 based machines.
361
362 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
363 the ICT (Institute of Computing Technology) and the Chinese Academy
364 of Sciences.
365
366 config MACH_PISTACHIO
367 bool "IMG Pistachio SoC based boards"
368 select ARCH_REQUIRE_GPIOLIB
369 select BOOT_ELF32
370 select BOOT_RAW
371 select CEVT_R4K
372 select CLKSRC_MIPS_GIC
373 select COMMON_CLK
374 select CSRC_R4K
375 select DMA_MAYBE_COHERENT
376 select IRQ_CPU
377 select LIBFDT
378 select MFD_SYSCON
379 select MIPS_CPU_SCACHE
380 select MIPS_GIC
381 select PINCTRL
382 select REGULATOR
383 select SYS_HAS_CPU_MIPS32_R2
384 select SYS_SUPPORTS_32BIT_KERNEL
385 select SYS_SUPPORTS_LITTLE_ENDIAN
386 select SYS_SUPPORTS_MIPS_CPS
387 select SYS_SUPPORTS_MULTITHREADING
388 select SYS_SUPPORTS_ZBOOT
389 select USE_OF
390 help
391 This enables support for the IMG Pistachio SoC platform.
392
393 config MIPS_MALTA
394 bool "MIPS Malta board"
395 select ARCH_MAY_HAVE_PC_FDC
396 select BOOT_ELF32
397 select BOOT_RAW
398 select CEVT_R4K
399 select CSRC_R4K
400 select CLKSRC_MIPS_GIC
401 select DMA_MAYBE_COHERENT
402 select GENERIC_ISA_DMA
403 select HAVE_PCSPKR_PLATFORM
404 select IRQ_CPU
405 select MIPS_GIC
406 select HW_HAS_PCI
407 select I8253
408 select I8259
409 select MIPS_BONITO64
410 select MIPS_CPU_SCACHE
411 select MIPS_L1_CACHE_SHIFT_6
412 select PCI_GT64XXX_PCI0
413 select MIPS_MSC
414 select SWAP_IO_SPACE
415 select SYS_HAS_CPU_MIPS32_R1
416 select SYS_HAS_CPU_MIPS32_R2
417 select SYS_HAS_CPU_MIPS32_R3_5
418 select SYS_HAS_CPU_MIPS32_R5
419 select SYS_HAS_CPU_MIPS32_R6
420 select SYS_HAS_CPU_MIPS64_R1
421 select SYS_HAS_CPU_MIPS64_R2
422 select SYS_HAS_CPU_MIPS64_R6
423 select SYS_HAS_CPU_NEVADA
424 select SYS_HAS_CPU_RM7000
425 select SYS_SUPPORTS_32BIT_KERNEL
426 select SYS_SUPPORTS_64BIT_KERNEL
427 select SYS_SUPPORTS_BIG_ENDIAN
428 select SYS_SUPPORTS_HIGHMEM
429 select SYS_SUPPORTS_LITTLE_ENDIAN
430 select SYS_SUPPORTS_MICROMIPS
431 select SYS_SUPPORTS_MIPS_CMP
432 select SYS_SUPPORTS_MIPS_CPS
433 select SYS_SUPPORTS_MIPS16
434 select SYS_SUPPORTS_MULTITHREADING
435 select SYS_SUPPORTS_SMARTMIPS
436 select SYS_SUPPORTS_ZBOOT
437 help
438 This enables support for the MIPS Technologies Malta evaluation
439 board.
440
441 config MIPS_SEAD3
442 bool "MIPS SEAD3 board"
443 select BOOT_ELF32
444 select BOOT_RAW
445 select BUILTIN_DTB
446 select CEVT_R4K
447 select CSRC_R4K
448 select CLKSRC_MIPS_GIC
449 select CPU_MIPSR2_IRQ_VI
450 select CPU_MIPSR2_IRQ_EI
451 select DMA_NONCOHERENT
452 select IRQ_CPU
453 select MIPS_GIC
454 select LIBFDT
455 select MIPS_MSC
456 select SYS_HAS_CPU_MIPS32_R1
457 select SYS_HAS_CPU_MIPS32_R2
458 select SYS_HAS_CPU_MIPS64_R1
459 select SYS_HAS_EARLY_PRINTK
460 select SYS_SUPPORTS_32BIT_KERNEL
461 select SYS_SUPPORTS_64BIT_KERNEL
462 select SYS_SUPPORTS_BIG_ENDIAN
463 select SYS_SUPPORTS_LITTLE_ENDIAN
464 select SYS_SUPPORTS_SMARTMIPS
465 select SYS_SUPPORTS_MICROMIPS
466 select SYS_SUPPORTS_MIPS16
467 select USB_EHCI_BIG_ENDIAN_DESC
468 select USB_EHCI_BIG_ENDIAN_MMIO
469 select USE_OF
470 help
471 This enables support for the MIPS Technologies SEAD3 evaluation
472 board.
473
474 config NEC_MARKEINS
475 bool "NEC EMMA2RH Mark-eins board"
476 select SOC_EMMA2RH
477 select HW_HAS_PCI
478 help
479 This enables support for the NEC Electronics Mark-eins boards.
480
481 config MACH_VR41XX
482 bool "NEC VR4100 series based machines"
483 select CEVT_R4K
484 select CSRC_R4K
485 select SYS_HAS_CPU_VR41XX
486 select SYS_SUPPORTS_MIPS16
487 select ARCH_REQUIRE_GPIOLIB
488
489 config NXP_STB220
490 bool "NXP STB220 board"
491 select SOC_PNX833X
492 help
493 Support for NXP Semiconductors STB220 Development Board.
494
495 config NXP_STB225
496 bool "NXP 225 board"
497 select SOC_PNX833X
498 select SOC_PNX8335
499 help
500 Support for NXP Semiconductors STB225 Development Board.
501
502 config PMC_MSP
503 bool "PMC-Sierra MSP chipsets"
504 select CEVT_R4K
505 select CSRC_R4K
506 select DMA_NONCOHERENT
507 select SWAP_IO_SPACE
508 select NO_EXCEPT_FILL
509 select BOOT_RAW
510 select SYS_HAS_CPU_MIPS32_R1
511 select SYS_HAS_CPU_MIPS32_R2
512 select SYS_SUPPORTS_32BIT_KERNEL
513 select SYS_SUPPORTS_BIG_ENDIAN
514 select SYS_SUPPORTS_MIPS16
515 select IRQ_CPU
516 select SERIAL_8250
517 select SERIAL_8250_CONSOLE
518 select USB_EHCI_BIG_ENDIAN_MMIO
519 select USB_EHCI_BIG_ENDIAN_DESC
520 help
521 This adds support for the PMC-Sierra family of Multi-Service
522 Processor System-On-A-Chips. These parts include a number
523 of integrated peripherals, interfaces and DSPs in addition to
524 a variety of MIPS cores.
525
526 config RALINK
527 bool "Ralink based machines"
528 select CEVT_R4K
529 select CSRC_R4K
530 select BOOT_RAW
531 select DMA_NONCOHERENT
532 select IRQ_CPU
533 select USE_OF
534 select SYS_HAS_CPU_MIPS32_R1
535 select SYS_HAS_CPU_MIPS32_R2
536 select SYS_SUPPORTS_32BIT_KERNEL
537 select SYS_SUPPORTS_LITTLE_ENDIAN
538 select SYS_SUPPORTS_MIPS16
539 select SYS_HAS_EARLY_PRINTK
540 select HAVE_MACH_CLKDEV
541 select CLKDEV_LOOKUP
542 select ARCH_HAS_RESET_CONTROLLER
543 select RESET_CONTROLLER
544
545 config SGI_IP22
546 bool "SGI IP22 (Indy/Indigo2)"
547 select FW_ARC
548 select FW_ARC32
549 select BOOT_ELF32
550 select CEVT_R4K
551 select CSRC_R4K
552 select DEFAULT_SGI_PARTITION
553 select DMA_NONCOHERENT
554 select HW_HAS_EISA
555 select I8253
556 select I8259
557 select IP22_CPU_SCACHE
558 select IRQ_CPU
559 select GENERIC_ISA_DMA_SUPPORT_BROKEN
560 select SGI_HAS_I8042
561 select SGI_HAS_INDYDOG
562 select SGI_HAS_HAL2
563 select SGI_HAS_SEEQ
564 select SGI_HAS_WD93
565 select SGI_HAS_ZILOG
566 select SWAP_IO_SPACE
567 select SYS_HAS_CPU_R4X00
568 select SYS_HAS_CPU_R5000
569 #
570 # Disable EARLY_PRINTK for now since it leads to overwritten prom
571 # memory during early boot on some machines.
572 #
573 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
574 # for a more details discussion
575 #
576 # select SYS_HAS_EARLY_PRINTK
577 select SYS_SUPPORTS_32BIT_KERNEL
578 select SYS_SUPPORTS_64BIT_KERNEL
579 select SYS_SUPPORTS_BIG_ENDIAN
580 select MIPS_L1_CACHE_SHIFT_7
581 help
582 This are the SGI Indy, Challenge S and Indigo2, as well as certain
583 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
584 that runs on these, say Y here.
585
586 config SGI_IP27
587 bool "SGI IP27 (Origin200/2000)"
588 select FW_ARC
589 select FW_ARC64
590 select BOOT_ELF64
591 select DEFAULT_SGI_PARTITION
592 select DMA_COHERENT
593 select SYS_HAS_EARLY_PRINTK
594 select HW_HAS_PCI
595 select NR_CPUS_DEFAULT_64
596 select SYS_HAS_CPU_R10000
597 select SYS_SUPPORTS_64BIT_KERNEL
598 select SYS_SUPPORTS_BIG_ENDIAN
599 select SYS_SUPPORTS_NUMA
600 select SYS_SUPPORTS_SMP
601 select MIPS_L1_CACHE_SHIFT_7
602 help
603 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
604 workstations. To compile a Linux kernel that runs on these, say Y
605 here.
606
607 config SGI_IP28
608 bool "SGI IP28 (Indigo2 R10k)"
609 select FW_ARC
610 select FW_ARC64
611 select BOOT_ELF64
612 select CEVT_R4K
613 select CSRC_R4K
614 select DEFAULT_SGI_PARTITION
615 select DMA_NONCOHERENT
616 select GENERIC_ISA_DMA_SUPPORT_BROKEN
617 select IRQ_CPU
618 select HW_HAS_EISA
619 select I8253
620 select I8259
621 select SGI_HAS_I8042
622 select SGI_HAS_INDYDOG
623 select SGI_HAS_HAL2
624 select SGI_HAS_SEEQ
625 select SGI_HAS_WD93
626 select SGI_HAS_ZILOG
627 select SWAP_IO_SPACE
628 select SYS_HAS_CPU_R10000
629 #
630 # Disable EARLY_PRINTK for now since it leads to overwritten prom
631 # memory during early boot on some machines.
632 #
633 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
634 # for a more details discussion
635 #
636 # select SYS_HAS_EARLY_PRINTK
637 select SYS_SUPPORTS_64BIT_KERNEL
638 select SYS_SUPPORTS_BIG_ENDIAN
639 select MIPS_L1_CACHE_SHIFT_7
640 help
641 This is the SGI Indigo2 with R10000 processor. To compile a Linux
642 kernel that runs on these, say Y here.
643
644 config SGI_IP32
645 bool "SGI IP32 (O2)"
646 select FW_ARC
647 select FW_ARC32
648 select BOOT_ELF32
649 select CEVT_R4K
650 select CSRC_R4K
651 select DMA_NONCOHERENT
652 select HW_HAS_PCI
653 select IRQ_CPU
654 select R5000_CPU_SCACHE
655 select RM7000_CPU_SCACHE
656 select SYS_HAS_CPU_R5000
657 select SYS_HAS_CPU_R10000 if BROKEN
658 select SYS_HAS_CPU_RM7000
659 select SYS_HAS_CPU_NEVADA
660 select SYS_SUPPORTS_64BIT_KERNEL
661 select SYS_SUPPORTS_BIG_ENDIAN
662 help
663 If you want this kernel to run on SGI O2 workstation, say Y here.
664
665 config SIBYTE_CRHINE
666 bool "Sibyte BCM91120C-CRhine"
667 select BOOT_ELF32
668 select DMA_COHERENT
669 select SIBYTE_BCM1120
670 select SWAP_IO_SPACE
671 select SYS_HAS_CPU_SB1
672 select SYS_SUPPORTS_BIG_ENDIAN
673 select SYS_SUPPORTS_LITTLE_ENDIAN
674
675 config SIBYTE_CARMEL
676 bool "Sibyte BCM91120x-Carmel"
677 select BOOT_ELF32
678 select DMA_COHERENT
679 select SIBYTE_BCM1120
680 select SWAP_IO_SPACE
681 select SYS_HAS_CPU_SB1
682 select SYS_SUPPORTS_BIG_ENDIAN
683 select SYS_SUPPORTS_LITTLE_ENDIAN
684
685 config SIBYTE_CRHONE
686 bool "Sibyte BCM91125C-CRhone"
687 select BOOT_ELF32
688 select DMA_COHERENT
689 select SIBYTE_BCM1125
690 select SWAP_IO_SPACE
691 select SYS_HAS_CPU_SB1
692 select SYS_SUPPORTS_BIG_ENDIAN
693 select SYS_SUPPORTS_HIGHMEM
694 select SYS_SUPPORTS_LITTLE_ENDIAN
695
696 config SIBYTE_RHONE
697 bool "Sibyte BCM91125E-Rhone"
698 select BOOT_ELF32
699 select DMA_COHERENT
700 select SIBYTE_BCM1125H
701 select SWAP_IO_SPACE
702 select SYS_HAS_CPU_SB1
703 select SYS_SUPPORTS_BIG_ENDIAN
704 select SYS_SUPPORTS_LITTLE_ENDIAN
705
706 config SIBYTE_SWARM
707 bool "Sibyte BCM91250A-SWARM"
708 select BOOT_ELF32
709 select DMA_COHERENT
710 select HAVE_PATA_PLATFORM
711 select SIBYTE_SB1250
712 select SWAP_IO_SPACE
713 select SYS_HAS_CPU_SB1
714 select SYS_SUPPORTS_BIG_ENDIAN
715 select SYS_SUPPORTS_HIGHMEM
716 select SYS_SUPPORTS_LITTLE_ENDIAN
717 select ZONE_DMA32 if 64BIT
718
719 config SIBYTE_LITTLESUR
720 bool "Sibyte BCM91250C2-LittleSur"
721 select BOOT_ELF32
722 select DMA_COHERENT
723 select HAVE_PATA_PLATFORM
724 select SIBYTE_SB1250
725 select SWAP_IO_SPACE
726 select SYS_HAS_CPU_SB1
727 select SYS_SUPPORTS_BIG_ENDIAN
728 select SYS_SUPPORTS_HIGHMEM
729 select SYS_SUPPORTS_LITTLE_ENDIAN
730
731 config SIBYTE_SENTOSA
732 bool "Sibyte BCM91250E-Sentosa"
733 select BOOT_ELF32
734 select DMA_COHERENT
735 select SIBYTE_SB1250
736 select SWAP_IO_SPACE
737 select SYS_HAS_CPU_SB1
738 select SYS_SUPPORTS_BIG_ENDIAN
739 select SYS_SUPPORTS_LITTLE_ENDIAN
740
741 config SIBYTE_BIGSUR
742 bool "Sibyte BCM91480B-BigSur"
743 select BOOT_ELF32
744 select DMA_COHERENT
745 select NR_CPUS_DEFAULT_4
746 select SIBYTE_BCM1x80
747 select SWAP_IO_SPACE
748 select SYS_HAS_CPU_SB1
749 select SYS_SUPPORTS_BIG_ENDIAN
750 select SYS_SUPPORTS_HIGHMEM
751 select SYS_SUPPORTS_LITTLE_ENDIAN
752 select ZONE_DMA32 if 64BIT
753
754 config SNI_RM
755 bool "SNI RM200/300/400"
756 select FW_ARC if CPU_LITTLE_ENDIAN
757 select FW_ARC32 if CPU_LITTLE_ENDIAN
758 select FW_SNIPROM if CPU_BIG_ENDIAN
759 select ARCH_MAY_HAVE_PC_FDC
760 select BOOT_ELF32
761 select CEVT_R4K
762 select CSRC_R4K
763 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
764 select DMA_NONCOHERENT
765 select GENERIC_ISA_DMA
766 select HAVE_PCSPKR_PLATFORM
767 select HW_HAS_EISA
768 select HW_HAS_PCI
769 select IRQ_CPU
770 select I8253
771 select I8259
772 select ISA
773 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
774 select SYS_HAS_CPU_R4X00
775 select SYS_HAS_CPU_R5000
776 select SYS_HAS_CPU_R10000
777 select R5000_CPU_SCACHE
778 select SYS_HAS_EARLY_PRINTK
779 select SYS_SUPPORTS_32BIT_KERNEL
780 select SYS_SUPPORTS_64BIT_KERNEL
781 select SYS_SUPPORTS_BIG_ENDIAN
782 select SYS_SUPPORTS_HIGHMEM
783 select SYS_SUPPORTS_LITTLE_ENDIAN
784 help
785 The SNI RM200/300/400 are MIPS-based machines manufactured by
786 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
787 Technology and now in turn merged with Fujitsu. Say Y here to
788 support this machine type.
789
790 config MACH_TX39XX
791 bool "Toshiba TX39 series based machines"
792
793 config MACH_TX49XX
794 bool "Toshiba TX49 series based machines"
795
796 config MIKROTIK_RB532
797 bool "Mikrotik RB532 boards"
798 select CEVT_R4K
799 select CSRC_R4K
800 select DMA_NONCOHERENT
801 select HW_HAS_PCI
802 select IRQ_CPU
803 select SYS_HAS_CPU_MIPS32_R1
804 select SYS_SUPPORTS_32BIT_KERNEL
805 select SYS_SUPPORTS_LITTLE_ENDIAN
806 select SWAP_IO_SPACE
807 select BOOT_RAW
808 select ARCH_REQUIRE_GPIOLIB
809 select MIPS_L1_CACHE_SHIFT_4
810 help
811 Support the Mikrotik(tm) RouterBoard 532 series,
812 based on the IDT RC32434 SoC.
813
814 config CAVIUM_OCTEON_SOC
815 bool "Cavium Networks Octeon SoC based boards"
816 select CEVT_R4K
817 select ARCH_PHYS_ADDR_T_64BIT
818 select DMA_COHERENT
819 select SYS_SUPPORTS_64BIT_KERNEL
820 select SYS_SUPPORTS_BIG_ENDIAN
821 select EDAC_SUPPORT
822 select SYS_SUPPORTS_LITTLE_ENDIAN
823 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
824 select SYS_HAS_EARLY_PRINTK
825 select SYS_HAS_CPU_CAVIUM_OCTEON
826 select SWAP_IO_SPACE
827 select HW_HAS_PCI
828 select ZONE_DMA32
829 select HOLES_IN_ZONE
830 select ARCH_REQUIRE_GPIOLIB
831 select LIBFDT
832 select USE_OF
833 select ARCH_SPARSEMEM_ENABLE
834 select SYS_SUPPORTS_SMP
835 select NR_CPUS_DEFAULT_16
836 select BUILTIN_DTB
837 select MTD_COMPLEX_MAPPINGS
838 help
839 This option supports all of the Octeon reference boards from Cavium
840 Networks. It builds a kernel that dynamically determines the Octeon
841 CPU type and supports all known board reference implementations.
842 Some of the supported boards are:
843 EBT3000
844 EBH3000
845 EBH3100
846 Thunder
847 Kodama
848 Hikari
849 Say Y here for most Octeon reference boards.
850
851 config NLM_XLR_BOARD
852 bool "Netlogic XLR/XLS based systems"
853 select BOOT_ELF32
854 select NLM_COMMON
855 select SYS_HAS_CPU_XLR
856 select SYS_SUPPORTS_SMP
857 select HW_HAS_PCI
858 select SWAP_IO_SPACE
859 select SYS_SUPPORTS_32BIT_KERNEL
860 select SYS_SUPPORTS_64BIT_KERNEL
861 select ARCH_PHYS_ADDR_T_64BIT
862 select SYS_SUPPORTS_BIG_ENDIAN
863 select SYS_SUPPORTS_HIGHMEM
864 select DMA_COHERENT
865 select NR_CPUS_DEFAULT_32
866 select CEVT_R4K
867 select CSRC_R4K
868 select IRQ_CPU
869 select ZONE_DMA32 if 64BIT
870 select SYNC_R4K
871 select SYS_HAS_EARLY_PRINTK
872 select SYS_SUPPORTS_ZBOOT
873 select SYS_SUPPORTS_ZBOOT_UART16550
874 help
875 Support for systems based on Netlogic XLR and XLS processors.
876 Say Y here if you have a XLR or XLS based board.
877
878 config NLM_XLP_BOARD
879 bool "Netlogic XLP based systems"
880 select BOOT_ELF32
881 select NLM_COMMON
882 select SYS_HAS_CPU_XLP
883 select SYS_SUPPORTS_SMP
884 select HW_HAS_PCI
885 select SYS_SUPPORTS_32BIT_KERNEL
886 select SYS_SUPPORTS_64BIT_KERNEL
887 select ARCH_PHYS_ADDR_T_64BIT
888 select SYS_SUPPORTS_BIG_ENDIAN
889 select SYS_SUPPORTS_LITTLE_ENDIAN
890 select SYS_SUPPORTS_HIGHMEM
891 select DMA_COHERENT
892 select NR_CPUS_DEFAULT_32
893 select CEVT_R4K
894 select CSRC_R4K
895 select IRQ_CPU
896 select ZONE_DMA32 if 64BIT
897 select SYNC_R4K
898 select SYS_HAS_EARLY_PRINTK
899 select USE_OF
900 select SYS_SUPPORTS_ZBOOT
901 select SYS_SUPPORTS_ZBOOT_UART16550
902 help
903 This board is based on Netlogic XLP Processor.
904 Say Y here if you have a XLP based board.
905
906 config MIPS_PARAVIRT
907 bool "Para-Virtualized guest system"
908 select CEVT_R4K
909 select CSRC_R4K
910 select DMA_COHERENT
911 select SYS_SUPPORTS_64BIT_KERNEL
912 select SYS_SUPPORTS_32BIT_KERNEL
913 select SYS_SUPPORTS_BIG_ENDIAN
914 select SYS_SUPPORTS_SMP
915 select NR_CPUS_DEFAULT_4
916 select SYS_HAS_EARLY_PRINTK
917 select SYS_HAS_CPU_MIPS32_R2
918 select SYS_HAS_CPU_MIPS64_R2
919 select SYS_HAS_CPU_CAVIUM_OCTEON
920 select HW_HAS_PCI
921 select SWAP_IO_SPACE
922 help
923 This option supports guest running under ????
924
925 endchoice
926
927 source "arch/mips/alchemy/Kconfig"
928 source "arch/mips/ath25/Kconfig"
929 source "arch/mips/ath79/Kconfig"
930 source "arch/mips/bcm47xx/Kconfig"
931 source "arch/mips/bcm63xx/Kconfig"
932 source "arch/mips/bmips/Kconfig"
933 source "arch/mips/jazz/Kconfig"
934 source "arch/mips/jz4740/Kconfig"
935 source "arch/mips/lantiq/Kconfig"
936 source "arch/mips/lasat/Kconfig"
937 source "arch/mips/pmcs-msp71xx/Kconfig"
938 source "arch/mips/ralink/Kconfig"
939 source "arch/mips/sgi-ip27/Kconfig"
940 source "arch/mips/sibyte/Kconfig"
941 source "arch/mips/txx9/Kconfig"
942 source "arch/mips/vr41xx/Kconfig"
943 source "arch/mips/cavium-octeon/Kconfig"
944 source "arch/mips/loongson/Kconfig"
945 source "arch/mips/loongson1/Kconfig"
946 source "arch/mips/netlogic/Kconfig"
947 source "arch/mips/paravirt/Kconfig"
948
949 endmenu
950
951 config RWSEM_GENERIC_SPINLOCK
952 bool
953 default y
954
955 config RWSEM_XCHGADD_ALGORITHM
956 bool
957
958 config ARCH_HAS_ILOG2_U32
959 bool
960 default n
961
962 config ARCH_HAS_ILOG2_U64
963 bool
964 default n
965
966 config GENERIC_HWEIGHT
967 bool
968 default y
969
970 config GENERIC_CALIBRATE_DELAY
971 bool
972 default y
973
974 config SCHED_OMIT_FRAME_POINTER
975 bool
976 default y
977
978 #
979 # Select some configuration options automatically based on user selections.
980 #
981 config FW_ARC
982 bool
983
984 config ARCH_MAY_HAVE_PC_FDC
985 bool
986
987 config BOOT_RAW
988 bool
989
990 config CEVT_BCM1480
991 bool
992
993 config CEVT_DS1287
994 bool
995
996 config CEVT_GT641XX
997 bool
998
999 config CEVT_R4K
1000 bool
1001
1002 config CEVT_SB1250
1003 bool
1004
1005 config CEVT_TXX9
1006 bool
1007
1008 config CSRC_BCM1480
1009 bool
1010
1011 config CSRC_IOASIC
1012 bool
1013
1014 config CSRC_R4K
1015 bool
1016
1017 config CSRC_SB1250
1018 bool
1019
1020 config GPIO_TXX9
1021 select ARCH_REQUIRE_GPIOLIB
1022 bool
1023
1024 config FW_CFE
1025 bool
1026
1027 config ARCH_DMA_ADDR_T_64BIT
1028 def_bool (HIGHMEM && ARCH_PHYS_ADDR_T_64BIT) || 64BIT
1029
1030 config DMA_MAYBE_COHERENT
1031 select DMA_NONCOHERENT
1032 bool
1033
1034 config DMA_COHERENT
1035 bool
1036
1037 config DMA_NONCOHERENT
1038 bool
1039 select NEED_DMA_MAP_STATE
1040
1041 config NEED_DMA_MAP_STATE
1042 bool
1043
1044 config SYS_HAS_EARLY_PRINTK
1045 bool
1046
1047 config HOTPLUG_CPU
1048 bool "Support for hot-pluggable CPUs"
1049 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
1050 help
1051 Say Y here to allow turning CPUs off and on. CPUs can be
1052 controlled through /sys/devices/system/cpu.
1053 (Note: power management support will enable this option
1054 automatically on SMP systems. )
1055 Say N if you want to disable CPU hotplug.
1056
1057 config SYS_SUPPORTS_HOTPLUG_CPU
1058 bool
1059
1060 config I8259
1061 bool
1062 select IRQ_DOMAIN
1063
1064 config MIPS_BONITO64
1065 bool
1066
1067 config MIPS_MSC
1068 bool
1069
1070 config MIPS_NILE4
1071 bool
1072
1073 config SYNC_R4K
1074 bool
1075
1076 config MIPS_MACHINE
1077 def_bool n
1078
1079 config NO_IOPORT_MAP
1080 def_bool n
1081
1082 config GENERIC_CSUM
1083 bool
1084
1085 config GENERIC_ISA_DMA
1086 bool
1087 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1088 select ISA_DMA_API
1089
1090 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1091 bool
1092 select GENERIC_ISA_DMA
1093
1094 config ISA_DMA_API
1095 bool
1096
1097 config HOLES_IN_ZONE
1098 bool
1099
1100 #
1101 # Endianness selection. Sufficiently obscure so many users don't know what to
1102 # answer,so we try hard to limit the available choices. Also the use of a
1103 # choice statement should be more obvious to the user.
1104 #
1105 choice
1106 prompt "Endianness selection"
1107 help
1108 Some MIPS machines can be configured for either little or big endian
1109 byte order. These modes require different kernels and a different
1110 Linux distribution. In general there is one preferred byteorder for a
1111 particular system but some systems are just as commonly used in the
1112 one or the other endianness.
1113
1114 config CPU_BIG_ENDIAN
1115 bool "Big endian"
1116 depends on SYS_SUPPORTS_BIG_ENDIAN
1117
1118 config CPU_LITTLE_ENDIAN
1119 bool "Little endian"
1120 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1121
1122 endchoice
1123
1124 config EXPORT_UASM
1125 bool
1126
1127 config SYS_SUPPORTS_APM_EMULATION
1128 bool
1129
1130 config SYS_SUPPORTS_BIG_ENDIAN
1131 bool
1132
1133 config SYS_SUPPORTS_LITTLE_ENDIAN
1134 bool
1135
1136 config SYS_SUPPORTS_HUGETLBFS
1137 bool
1138 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1139 default y
1140
1141 config MIPS_HUGE_TLB_SUPPORT
1142 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1143
1144 config IRQ_CPU
1145 bool
1146 select IRQ_DOMAIN
1147
1148 config IRQ_CPU_RM7K
1149 bool
1150
1151 config IRQ_MSP_SLP
1152 bool
1153
1154 config IRQ_MSP_CIC
1155 bool
1156
1157 config IRQ_TXX9
1158 bool
1159
1160 config IRQ_GT641XX
1161 bool
1162
1163 config PCI_GT64XXX_PCI0
1164 bool
1165
1166 config NO_EXCEPT_FILL
1167 bool
1168
1169 config SOC_EMMA2RH
1170 bool
1171 select CEVT_R4K
1172 select CSRC_R4K
1173 select DMA_NONCOHERENT
1174 select IRQ_CPU
1175 select SWAP_IO_SPACE
1176 select SYS_HAS_CPU_R5500
1177 select SYS_SUPPORTS_32BIT_KERNEL
1178 select SYS_SUPPORTS_64BIT_KERNEL
1179 select SYS_SUPPORTS_BIG_ENDIAN
1180
1181 config SOC_PNX833X
1182 bool
1183 select CEVT_R4K
1184 select CSRC_R4K
1185 select IRQ_CPU
1186 select DMA_NONCOHERENT
1187 select SYS_HAS_CPU_MIPS32_R2
1188 select SYS_SUPPORTS_32BIT_KERNEL
1189 select SYS_SUPPORTS_LITTLE_ENDIAN
1190 select SYS_SUPPORTS_BIG_ENDIAN
1191 select SYS_SUPPORTS_MIPS16
1192 select CPU_MIPSR2_IRQ_VI
1193
1194 config SOC_PNX8335
1195 bool
1196 select SOC_PNX833X
1197
1198 config MIPS_SPRAM
1199 bool
1200
1201 config SWAP_IO_SPACE
1202 bool
1203
1204 config SGI_HAS_INDYDOG
1205 bool
1206
1207 config SGI_HAS_HAL2
1208 bool
1209
1210 config SGI_HAS_SEEQ
1211 bool
1212
1213 config SGI_HAS_WD93
1214 bool
1215
1216 config SGI_HAS_ZILOG
1217 bool
1218
1219 config SGI_HAS_I8042
1220 bool
1221
1222 config DEFAULT_SGI_PARTITION
1223 bool
1224
1225 config FW_ARC32
1226 bool
1227
1228 config FW_SNIPROM
1229 bool
1230
1231 config BOOT_ELF32
1232 bool
1233
1234 config MIPS_L1_CACHE_SHIFT_4
1235 bool
1236
1237 config MIPS_L1_CACHE_SHIFT_5
1238 bool
1239
1240 config MIPS_L1_CACHE_SHIFT_6
1241 bool
1242
1243 config MIPS_L1_CACHE_SHIFT_7
1244 bool
1245
1246 config MIPS_L1_CACHE_SHIFT
1247 int
1248 default "7" if MIPS_L1_CACHE_SHIFT_7
1249 default "6" if MIPS_L1_CACHE_SHIFT_6
1250 default "5" if MIPS_L1_CACHE_SHIFT_5
1251 default "4" if MIPS_L1_CACHE_SHIFT_4
1252 default "5"
1253
1254 config HAVE_STD_PC_SERIAL_PORT
1255 bool
1256
1257 config ARC_CONSOLE
1258 bool "ARC console support"
1259 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1260
1261 config ARC_MEMORY
1262 bool
1263 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1264 default y
1265
1266 config ARC_PROMLIB
1267 bool
1268 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1269 default y
1270
1271 config FW_ARC64
1272 bool
1273
1274 config BOOT_ELF64
1275 bool
1276
1277 menu "CPU selection"
1278
1279 choice
1280 prompt "CPU type"
1281 default CPU_R4X00
1282
1283 config CPU_LOONGSON3
1284 bool "Loongson 3 CPU"
1285 depends on SYS_HAS_CPU_LOONGSON3
1286 select CPU_SUPPORTS_64BIT_KERNEL
1287 select CPU_SUPPORTS_HIGHMEM
1288 select CPU_SUPPORTS_HUGEPAGES
1289 select WEAK_ORDERING
1290 select WEAK_REORDERING_BEYOND_LLSC
1291 select ARCH_REQUIRE_GPIOLIB
1292 help
1293 The Loongson 3 processor implements the MIPS64R2 instruction
1294 set with many extensions.
1295
1296 config CPU_LOONGSON2E
1297 bool "Loongson 2E"
1298 depends on SYS_HAS_CPU_LOONGSON2E
1299 select CPU_LOONGSON2
1300 help
1301 The Loongson 2E processor implements the MIPS III instruction set
1302 with many extensions.
1303
1304 It has an internal FPGA northbridge, which is compatible to
1305 bonito64.
1306
1307 config CPU_LOONGSON2F
1308 bool "Loongson 2F"
1309 depends on SYS_HAS_CPU_LOONGSON2F
1310 select CPU_LOONGSON2
1311 select ARCH_REQUIRE_GPIOLIB
1312 help
1313 The Loongson 2F processor implements the MIPS III instruction set
1314 with many extensions.
1315
1316 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1317 have a similar programming interface with FPGA northbridge used in
1318 Loongson2E.
1319
1320 config CPU_LOONGSON1B
1321 bool "Loongson 1B"
1322 depends on SYS_HAS_CPU_LOONGSON1B
1323 select CPU_LOONGSON1
1324 help
1325 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1326 release 2 instruction set.
1327
1328 config CPU_MIPS32_R1
1329 bool "MIPS32 Release 1"
1330 depends on SYS_HAS_CPU_MIPS32_R1
1331 select CPU_HAS_PREFETCH
1332 select CPU_SUPPORTS_32BIT_KERNEL
1333 select CPU_SUPPORTS_HIGHMEM
1334 help
1335 Choose this option to build a kernel for release 1 or later of the
1336 MIPS32 architecture. Most modern embedded systems with a 32-bit
1337 MIPS processor are based on a MIPS32 processor. If you know the
1338 specific type of processor in your system, choose those that one
1339 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1340 Release 2 of the MIPS32 architecture is available since several
1341 years so chances are you even have a MIPS32 Release 2 processor
1342 in which case you should choose CPU_MIPS32_R2 instead for better
1343 performance.
1344
1345 config CPU_MIPS32_R2
1346 bool "MIPS32 Release 2"
1347 depends on SYS_HAS_CPU_MIPS32_R2
1348 select CPU_HAS_PREFETCH
1349 select CPU_SUPPORTS_32BIT_KERNEL
1350 select CPU_SUPPORTS_HIGHMEM
1351 select CPU_SUPPORTS_MSA
1352 select HAVE_KVM
1353 help
1354 Choose this option to build a kernel for release 2 or later of the
1355 MIPS32 architecture. Most modern embedded systems with a 32-bit
1356 MIPS processor are based on a MIPS32 processor. If you know the
1357 specific type of processor in your system, choose those that one
1358 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1359
1360 config CPU_MIPS32_R6
1361 bool "MIPS32 Release 6 (EXPERIMENTAL)"
1362 depends on SYS_HAS_CPU_MIPS32_R6
1363 select CPU_HAS_PREFETCH
1364 select CPU_SUPPORTS_32BIT_KERNEL
1365 select CPU_SUPPORTS_HIGHMEM
1366 select CPU_SUPPORTS_MSA
1367 select GENERIC_CSUM
1368 select HAVE_KVM
1369 select MIPS_O32_FP64_SUPPORT
1370 help
1371 Choose this option to build a kernel for release 6 or later of the
1372 MIPS32 architecture. New MIPS processors, starting with the Warrior
1373 family, are based on a MIPS32r6 processor. If you own an older
1374 processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1375
1376 config CPU_MIPS64_R1
1377 bool "MIPS64 Release 1"
1378 depends on SYS_HAS_CPU_MIPS64_R1
1379 select CPU_HAS_PREFETCH
1380 select CPU_SUPPORTS_32BIT_KERNEL
1381 select CPU_SUPPORTS_64BIT_KERNEL
1382 select CPU_SUPPORTS_HIGHMEM
1383 select CPU_SUPPORTS_HUGEPAGES
1384 help
1385 Choose this option to build a kernel for release 1 or later of the
1386 MIPS64 architecture. Many modern embedded systems with a 64-bit
1387 MIPS processor are based on a MIPS64 processor. If you know the
1388 specific type of processor in your system, choose those that one
1389 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1390 Release 2 of the MIPS64 architecture is available since several
1391 years so chances are you even have a MIPS64 Release 2 processor
1392 in which case you should choose CPU_MIPS64_R2 instead for better
1393 performance.
1394
1395 config CPU_MIPS64_R2
1396 bool "MIPS64 Release 2"
1397 depends on SYS_HAS_CPU_MIPS64_R2
1398 select CPU_HAS_PREFETCH
1399 select CPU_SUPPORTS_32BIT_KERNEL
1400 select CPU_SUPPORTS_64BIT_KERNEL
1401 select CPU_SUPPORTS_HIGHMEM
1402 select CPU_SUPPORTS_HUGEPAGES
1403 select CPU_SUPPORTS_MSA
1404 help
1405 Choose this option to build a kernel for release 2 or later of the
1406 MIPS64 architecture. Many modern embedded systems with a 64-bit
1407 MIPS processor are based on a MIPS64 processor. If you know the
1408 specific type of processor in your system, choose those that one
1409 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1410
1411 config CPU_MIPS64_R6
1412 bool "MIPS64 Release 6 (EXPERIMENTAL)"
1413 depends on SYS_HAS_CPU_MIPS64_R6
1414 select CPU_HAS_PREFETCH
1415 select CPU_SUPPORTS_32BIT_KERNEL
1416 select CPU_SUPPORTS_64BIT_KERNEL
1417 select CPU_SUPPORTS_HIGHMEM
1418 select CPU_SUPPORTS_MSA
1419 select GENERIC_CSUM
1420 help
1421 Choose this option to build a kernel for release 6 or later of the
1422 MIPS64 architecture. New MIPS processors, starting with the Warrior
1423 family, are based on a MIPS64r6 processor. If you own an older
1424 processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1425
1426 config CPU_R3000
1427 bool "R3000"
1428 depends on SYS_HAS_CPU_R3000
1429 select CPU_HAS_WB
1430 select CPU_SUPPORTS_32BIT_KERNEL
1431 select CPU_SUPPORTS_HIGHMEM
1432 help
1433 Please make sure to pick the right CPU type. Linux/MIPS is not
1434 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1435 *not* work on R4000 machines and vice versa. However, since most
1436 of the supported machines have an R4000 (or similar) CPU, R4x00
1437 might be a safe bet. If the resulting kernel does not work,
1438 try to recompile with R3000.
1439
1440 config CPU_TX39XX
1441 bool "R39XX"
1442 depends on SYS_HAS_CPU_TX39XX
1443 select CPU_SUPPORTS_32BIT_KERNEL
1444
1445 config CPU_VR41XX
1446 bool "R41xx"
1447 depends on SYS_HAS_CPU_VR41XX
1448 select CPU_SUPPORTS_32BIT_KERNEL
1449 select CPU_SUPPORTS_64BIT_KERNEL
1450 help
1451 The options selects support for the NEC VR4100 series of processors.
1452 Only choose this option if you have one of these processors as a
1453 kernel built with this option will not run on any other type of
1454 processor or vice versa.
1455
1456 config CPU_R4300
1457 bool "R4300"
1458 depends on SYS_HAS_CPU_R4300
1459 select CPU_SUPPORTS_32BIT_KERNEL
1460 select CPU_SUPPORTS_64BIT_KERNEL
1461 help
1462 MIPS Technologies R4300-series processors.
1463
1464 config CPU_R4X00
1465 bool "R4x00"
1466 depends on SYS_HAS_CPU_R4X00
1467 select CPU_SUPPORTS_32BIT_KERNEL
1468 select CPU_SUPPORTS_64BIT_KERNEL
1469 select CPU_SUPPORTS_HUGEPAGES
1470 help
1471 MIPS Technologies R4000-series processors other than 4300, including
1472 the R4000, R4400, R4600, and 4700.
1473
1474 config CPU_TX49XX
1475 bool "R49XX"
1476 depends on SYS_HAS_CPU_TX49XX
1477 select CPU_HAS_PREFETCH
1478 select CPU_SUPPORTS_32BIT_KERNEL
1479 select CPU_SUPPORTS_64BIT_KERNEL
1480 select CPU_SUPPORTS_HUGEPAGES
1481
1482 config CPU_R5000
1483 bool "R5000"
1484 depends on SYS_HAS_CPU_R5000
1485 select CPU_SUPPORTS_32BIT_KERNEL
1486 select CPU_SUPPORTS_64BIT_KERNEL
1487 select CPU_SUPPORTS_HUGEPAGES
1488 help
1489 MIPS Technologies R5000-series processors other than the Nevada.
1490
1491 config CPU_R5432
1492 bool "R5432"
1493 depends on SYS_HAS_CPU_R5432
1494 select CPU_SUPPORTS_32BIT_KERNEL
1495 select CPU_SUPPORTS_64BIT_KERNEL
1496 select CPU_SUPPORTS_HUGEPAGES
1497
1498 config CPU_R5500
1499 bool "R5500"
1500 depends on SYS_HAS_CPU_R5500
1501 select CPU_SUPPORTS_32BIT_KERNEL
1502 select CPU_SUPPORTS_64BIT_KERNEL
1503 select CPU_SUPPORTS_HUGEPAGES
1504 help
1505 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1506 instruction set.
1507
1508 config CPU_R6000
1509 bool "R6000"
1510 depends on SYS_HAS_CPU_R6000
1511 select CPU_SUPPORTS_32BIT_KERNEL
1512 help
1513 MIPS Technologies R6000 and R6000A series processors. Note these
1514 processors are extremely rare and the support for them is incomplete.
1515
1516 config CPU_NEVADA
1517 bool "RM52xx"
1518 depends on SYS_HAS_CPU_NEVADA
1519 select CPU_SUPPORTS_32BIT_KERNEL
1520 select CPU_SUPPORTS_64BIT_KERNEL
1521 select CPU_SUPPORTS_HUGEPAGES
1522 help
1523 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1524
1525 config CPU_R8000
1526 bool "R8000"
1527 depends on SYS_HAS_CPU_R8000
1528 select CPU_HAS_PREFETCH
1529 select CPU_SUPPORTS_64BIT_KERNEL
1530 help
1531 MIPS Technologies R8000 processors. Note these processors are
1532 uncommon and the support for them is incomplete.
1533
1534 config CPU_R10000
1535 bool "R10000"
1536 depends on SYS_HAS_CPU_R10000
1537 select CPU_HAS_PREFETCH
1538 select CPU_SUPPORTS_32BIT_KERNEL
1539 select CPU_SUPPORTS_64BIT_KERNEL
1540 select CPU_SUPPORTS_HIGHMEM
1541 select CPU_SUPPORTS_HUGEPAGES
1542 help
1543 MIPS Technologies R10000-series processors.
1544
1545 config CPU_RM7000
1546 bool "RM7000"
1547 depends on SYS_HAS_CPU_RM7000
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
1554 config CPU_SB1
1555 bool "SB1"
1556 depends on SYS_HAS_CPU_SB1
1557 select CPU_SUPPORTS_32BIT_KERNEL
1558 select CPU_SUPPORTS_64BIT_KERNEL
1559 select CPU_SUPPORTS_HIGHMEM
1560 select CPU_SUPPORTS_HUGEPAGES
1561 select WEAK_ORDERING
1562
1563 config CPU_CAVIUM_OCTEON
1564 bool "Cavium Octeon processor"
1565 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1566 select CPU_HAS_PREFETCH
1567 select CPU_SUPPORTS_64BIT_KERNEL
1568 select WEAK_ORDERING
1569 select CPU_SUPPORTS_HIGHMEM
1570 select CPU_SUPPORTS_HUGEPAGES
1571 select USB_EHCI_BIG_ENDIAN_MMIO
1572 select MIPS_L1_CACHE_SHIFT_7
1573 help
1574 The Cavium Octeon processor is a highly integrated chip containing
1575 many ethernet hardware widgets for networking tasks. The processor
1576 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1577 Full details can be found at http://www.caviumnetworks.com.
1578
1579 config CPU_BMIPS
1580 bool "Broadcom BMIPS"
1581 depends on SYS_HAS_CPU_BMIPS
1582 select CPU_MIPS32
1583 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1584 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1585 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1586 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1587 select CPU_SUPPORTS_32BIT_KERNEL
1588 select DMA_NONCOHERENT
1589 select IRQ_CPU
1590 select SWAP_IO_SPACE
1591 select WEAK_ORDERING
1592 select CPU_SUPPORTS_HIGHMEM
1593 select CPU_HAS_PREFETCH
1594 help
1595 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1596
1597 config CPU_XLR
1598 bool "Netlogic XLR SoC"
1599 depends on SYS_HAS_CPU_XLR
1600 select CPU_SUPPORTS_32BIT_KERNEL
1601 select CPU_SUPPORTS_64BIT_KERNEL
1602 select CPU_SUPPORTS_HIGHMEM
1603 select CPU_SUPPORTS_HUGEPAGES
1604 select WEAK_ORDERING
1605 select WEAK_REORDERING_BEYOND_LLSC
1606 help
1607 Netlogic Microsystems XLR/XLS processors.
1608
1609 config CPU_XLP
1610 bool "Netlogic XLP SoC"
1611 depends on SYS_HAS_CPU_XLP
1612 select CPU_SUPPORTS_32BIT_KERNEL
1613 select CPU_SUPPORTS_64BIT_KERNEL
1614 select CPU_SUPPORTS_HIGHMEM
1615 select WEAK_ORDERING
1616 select WEAK_REORDERING_BEYOND_LLSC
1617 select CPU_HAS_PREFETCH
1618 select CPU_MIPSR2
1619 select CPU_SUPPORTS_HUGEPAGES
1620 help
1621 Netlogic Microsystems XLP processors.
1622 endchoice
1623
1624 config CPU_MIPS32_3_5_FEATURES
1625 bool "MIPS32 Release 3.5 Features"
1626 depends on SYS_HAS_CPU_MIPS32_R3_5
1627 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1628 help
1629 Choose this option to build a kernel for release 2 or later of the
1630 MIPS32 architecture including features from the 3.5 release such as
1631 support for Enhanced Virtual Addressing (EVA).
1632
1633 config CPU_MIPS32_3_5_EVA
1634 bool "Enhanced Virtual Addressing (EVA)"
1635 depends on CPU_MIPS32_3_5_FEATURES
1636 select EVA
1637 default y
1638 help
1639 Choose this option if you want to enable the Enhanced Virtual
1640 Addressing (EVA) on your MIPS32 core (such as proAptiv).
1641 One of its primary benefits is an increase in the maximum size
1642 of lowmem (up to 3GB). If unsure, say 'N' here.
1643
1644 config CPU_MIPS32_R5_FEATURES
1645 bool "MIPS32 Release 5 Features"
1646 depends on SYS_HAS_CPU_MIPS32_R5
1647 depends on CPU_MIPS32_R2
1648 help
1649 Choose this option to build a kernel for release 2 or later of the
1650 MIPS32 architecture including features from release 5 such as
1651 support for Extended Physical Addressing (XPA).
1652
1653 config CPU_MIPS32_R5_XPA
1654 bool "Extended Physical Addressing (XPA)"
1655 depends on CPU_MIPS32_R5_FEATURES
1656 depends on !EVA
1657 depends on !PAGE_SIZE_4KB
1658 depends on SYS_SUPPORTS_HIGHMEM
1659 select XPA
1660 select HIGHMEM
1661 select ARCH_PHYS_ADDR_T_64BIT
1662 default n
1663 help
1664 Choose this option if you want to enable the Extended Physical
1665 Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1666 benefit is to increase physical addressing equal to or greater
1667 than 40 bits. Note that this has the side effect of turning on
1668 64-bit addressing which in turn makes the PTEs 64-bit in size.
1669 If unsure, say 'N' here.
1670
1671 if CPU_LOONGSON2F
1672 config CPU_NOP_WORKAROUNDS
1673 bool
1674
1675 config CPU_JUMP_WORKAROUNDS
1676 bool
1677
1678 config CPU_LOONGSON2F_WORKAROUNDS
1679 bool "Loongson 2F Workarounds"
1680 default y
1681 select CPU_NOP_WORKAROUNDS
1682 select CPU_JUMP_WORKAROUNDS
1683 help
1684 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1685 require workarounds. Without workarounds the system may hang
1686 unexpectedly. For more information please refer to the gas
1687 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1688
1689 Loongson 2F03 and later have fixed these issues and no workarounds
1690 are needed. The workarounds have no significant side effect on them
1691 but may decrease the performance of the system so this option should
1692 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1693 systems.
1694
1695 If unsure, please say Y.
1696 endif # CPU_LOONGSON2F
1697
1698 config SYS_SUPPORTS_ZBOOT
1699 bool
1700 select HAVE_KERNEL_GZIP
1701 select HAVE_KERNEL_BZIP2
1702 select HAVE_KERNEL_LZ4
1703 select HAVE_KERNEL_LZMA
1704 select HAVE_KERNEL_LZO
1705 select HAVE_KERNEL_XZ
1706
1707 config SYS_SUPPORTS_ZBOOT_UART16550
1708 bool
1709 select SYS_SUPPORTS_ZBOOT
1710
1711 config CPU_LOONGSON2
1712 bool
1713 select CPU_SUPPORTS_32BIT_KERNEL
1714 select CPU_SUPPORTS_64BIT_KERNEL
1715 select CPU_SUPPORTS_HIGHMEM
1716 select CPU_SUPPORTS_HUGEPAGES
1717
1718 config CPU_LOONGSON1
1719 bool
1720 select CPU_MIPS32
1721 select CPU_MIPSR2
1722 select CPU_HAS_PREFETCH
1723 select CPU_SUPPORTS_32BIT_KERNEL
1724 select CPU_SUPPORTS_HIGHMEM
1725 select CPU_SUPPORTS_CPUFREQ
1726
1727 config CPU_BMIPS32_3300
1728 select SMP_UP if SMP
1729 bool
1730
1731 config CPU_BMIPS4350
1732 bool
1733 select SYS_SUPPORTS_SMP
1734 select SYS_SUPPORTS_HOTPLUG_CPU
1735
1736 config CPU_BMIPS4380
1737 bool
1738 select MIPS_L1_CACHE_SHIFT_6
1739 select SYS_SUPPORTS_SMP
1740 select SYS_SUPPORTS_HOTPLUG_CPU
1741
1742 config CPU_BMIPS5000
1743 bool
1744 select MIPS_CPU_SCACHE
1745 select MIPS_L1_CACHE_SHIFT_7
1746 select SYS_SUPPORTS_SMP
1747 select SYS_SUPPORTS_HOTPLUG_CPU
1748
1749 config SYS_HAS_CPU_LOONGSON3
1750 bool
1751 select CPU_SUPPORTS_CPUFREQ
1752
1753 config SYS_HAS_CPU_LOONGSON2E
1754 bool
1755
1756 config SYS_HAS_CPU_LOONGSON2F
1757 bool
1758 select CPU_SUPPORTS_CPUFREQ
1759 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1760 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1761
1762 config SYS_HAS_CPU_LOONGSON1B
1763 bool
1764
1765 config SYS_HAS_CPU_MIPS32_R1
1766 bool
1767
1768 config SYS_HAS_CPU_MIPS32_R2
1769 bool
1770
1771 config SYS_HAS_CPU_MIPS32_R3_5
1772 bool
1773
1774 config SYS_HAS_CPU_MIPS32_R5
1775 bool
1776
1777 config SYS_HAS_CPU_MIPS32_R6
1778 bool
1779
1780 config SYS_HAS_CPU_MIPS64_R1
1781 bool
1782
1783 config SYS_HAS_CPU_MIPS64_R2
1784 bool
1785
1786 config SYS_HAS_CPU_MIPS64_R6
1787 bool
1788
1789 config SYS_HAS_CPU_R3000
1790 bool
1791
1792 config SYS_HAS_CPU_TX39XX
1793 bool
1794
1795 config SYS_HAS_CPU_VR41XX
1796 bool
1797
1798 config SYS_HAS_CPU_R4300
1799 bool
1800
1801 config SYS_HAS_CPU_R4X00
1802 bool
1803
1804 config SYS_HAS_CPU_TX49XX
1805 bool
1806
1807 config SYS_HAS_CPU_R5000
1808 bool
1809
1810 config SYS_HAS_CPU_R5432
1811 bool
1812
1813 config SYS_HAS_CPU_R5500
1814 bool
1815
1816 config SYS_HAS_CPU_R6000
1817 bool
1818
1819 config SYS_HAS_CPU_NEVADA
1820 bool
1821
1822 config SYS_HAS_CPU_R8000
1823 bool
1824
1825 config SYS_HAS_CPU_R10000
1826 bool
1827
1828 config SYS_HAS_CPU_RM7000
1829 bool
1830
1831 config SYS_HAS_CPU_SB1
1832 bool
1833
1834 config SYS_HAS_CPU_CAVIUM_OCTEON
1835 bool
1836
1837 config SYS_HAS_CPU_BMIPS
1838 bool
1839
1840 config SYS_HAS_CPU_BMIPS32_3300
1841 bool
1842 select SYS_HAS_CPU_BMIPS
1843
1844 config SYS_HAS_CPU_BMIPS4350
1845 bool
1846 select SYS_HAS_CPU_BMIPS
1847
1848 config SYS_HAS_CPU_BMIPS4380
1849 bool
1850 select SYS_HAS_CPU_BMIPS
1851
1852 config SYS_HAS_CPU_BMIPS5000
1853 bool
1854 select SYS_HAS_CPU_BMIPS
1855
1856 config SYS_HAS_CPU_XLR
1857 bool
1858
1859 config SYS_HAS_CPU_XLP
1860 bool
1861
1862 config MIPS_MALTA_PM
1863 depends on MIPS_MALTA
1864 depends on PCI
1865 bool
1866 default y
1867
1868 #
1869 # CPU may reorder R->R, R->W, W->R, W->W
1870 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1871 #
1872 config WEAK_ORDERING
1873 bool
1874
1875 #
1876 # CPU may reorder reads and writes beyond LL/SC
1877 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1878 #
1879 config WEAK_REORDERING_BEYOND_LLSC
1880 bool
1881 endmenu
1882
1883 #
1884 # These two indicate any level of the MIPS32 and MIPS64 architecture
1885 #
1886 config CPU_MIPS32
1887 bool
1888 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
1889
1890 config CPU_MIPS64
1891 bool
1892 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
1893
1894 #
1895 # These two indicate the revision of the architecture, either Release 1 or Release 2
1896 #
1897 config CPU_MIPSR1
1898 bool
1899 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1900
1901 config CPU_MIPSR2
1902 bool
1903 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1904 select MIPS_SPRAM
1905
1906 config CPU_MIPSR6
1907 bool
1908 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
1909 select MIPS_SPRAM
1910
1911 config EVA
1912 bool
1913
1914 config XPA
1915 bool
1916
1917 config SYS_SUPPORTS_32BIT_KERNEL
1918 bool
1919 config SYS_SUPPORTS_64BIT_KERNEL
1920 bool
1921 config CPU_SUPPORTS_32BIT_KERNEL
1922 bool
1923 config CPU_SUPPORTS_64BIT_KERNEL
1924 bool
1925 config CPU_SUPPORTS_CPUFREQ
1926 bool
1927 config CPU_SUPPORTS_ADDRWINCFG
1928 bool
1929 config CPU_SUPPORTS_HUGEPAGES
1930 bool
1931 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1932 bool
1933 config MIPS_PGD_C0_CONTEXT
1934 bool
1935 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1936
1937 #
1938 # Set to y for ptrace access to watch registers.
1939 #
1940 config HARDWARE_WATCHPOINTS
1941 bool
1942 default y if CPU_MIPSR1 || CPU_MIPSR2
1943
1944 menu "Kernel type"
1945
1946 choice
1947 prompt "Kernel code model"
1948 help
1949 You should only select this option if you have a workload that
1950 actually benefits from 64-bit processing or if your machine has
1951 large memory. You will only be presented a single option in this
1952 menu if your system does not support both 32-bit and 64-bit kernels.
1953
1954 config 32BIT
1955 bool "32-bit kernel"
1956 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1957 select TRAD_SIGNALS
1958 help
1959 Select this option if you want to build a 32-bit kernel.
1960 config 64BIT
1961 bool "64-bit kernel"
1962 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1963 help
1964 Select this option if you want to build a 64-bit kernel.
1965
1966 endchoice
1967
1968 config KVM_GUEST
1969 bool "KVM Guest Kernel"
1970 depends on BROKEN_ON_SMP
1971 help
1972 Select this option if building a guest kernel for KVM (Trap & Emulate) mode
1973
1974 config KVM_GUEST_TIMER_FREQ
1975 int "Count/Compare Timer Frequency (MHz)"
1976 depends on KVM_GUEST
1977 default 100
1978 help
1979 Set this to non-zero if building a guest kernel for KVM to skip RTC
1980 emulation when determining guest CPU Frequency. Instead, the guest's
1981 timer frequency is specified directly.
1982
1983 choice
1984 prompt "Kernel page size"
1985 default PAGE_SIZE_4KB
1986
1987 config PAGE_SIZE_4KB
1988 bool "4kB"
1989 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
1990 help
1991 This option select the standard 4kB Linux page size. On some
1992 R3000-family processors this is the only available page size. Using
1993 4kB page size will minimize memory consumption and is therefore
1994 recommended for low memory systems.
1995
1996 config PAGE_SIZE_8KB
1997 bool "8kB"
1998 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
1999 help
2000 Using 8kB page size will result in higher performance kernel at
2001 the price of higher memory consumption. This option is available
2002 only on R8000 and cnMIPS processors. Note that you will need a
2003 suitable Linux distribution to support this.
2004
2005 config PAGE_SIZE_16KB
2006 bool "16kB"
2007 depends on !CPU_R3000 && !CPU_TX39XX
2008 help
2009 Using 16kB page size will result in higher performance kernel at
2010 the price of higher memory consumption. This option is available on
2011 all non-R3000 family processors. Note that you will need a suitable
2012 Linux distribution to support this.
2013
2014 config PAGE_SIZE_32KB
2015 bool "32kB"
2016 depends on CPU_CAVIUM_OCTEON
2017 help
2018 Using 32kB page size will result in higher performance kernel at
2019 the price of higher memory consumption. This option is available
2020 only on cnMIPS cores. Note that you will need a suitable Linux
2021 distribution to support this.
2022
2023 config PAGE_SIZE_64KB
2024 bool "64kB"
2025 depends on !CPU_R3000 && !CPU_TX39XX
2026 help
2027 Using 64kB page size will result in higher performance kernel at
2028 the price of higher memory consumption. This option is available on
2029 all non-R3000 family processor. Not that at the time of this
2030 writing this option is still high experimental.
2031
2032 endchoice
2033
2034 config FORCE_MAX_ZONEORDER
2035 int "Maximum zone order"
2036 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2037 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2038 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2039 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2040 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2041 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2042 range 11 64
2043 default "11"
2044 help
2045 The kernel memory allocator divides physically contiguous memory
2046 blocks into "zones", where each zone is a power of two number of
2047 pages. This option selects the largest power of two that the kernel
2048 keeps in the memory allocator. If you need to allocate very large
2049 blocks of physically contiguous memory, then you may need to
2050 increase this value.
2051
2052 This config option is actually maximum order plus one. For example,
2053 a value of 11 means that the largest free memory block is 2^10 pages.
2054
2055 The page size is not necessarily 4KB. Keep this in mind
2056 when choosing a value for this option.
2057
2058 config BOARD_SCACHE
2059 bool
2060
2061 config IP22_CPU_SCACHE
2062 bool
2063 select BOARD_SCACHE
2064
2065 #
2066 # Support for a MIPS32 / MIPS64 style S-caches
2067 #
2068 config MIPS_CPU_SCACHE
2069 bool
2070 select BOARD_SCACHE
2071
2072 config R5000_CPU_SCACHE
2073 bool
2074 select BOARD_SCACHE
2075
2076 config RM7000_CPU_SCACHE
2077 bool
2078 select BOARD_SCACHE
2079
2080 config SIBYTE_DMA_PAGEOPS
2081 bool "Use DMA to clear/copy pages"
2082 depends on CPU_SB1
2083 help
2084 Instead of using the CPU to zero and copy pages, use a Data Mover
2085 channel. These DMA channels are otherwise unused by the standard
2086 SiByte Linux port. Seems to give a small performance benefit.
2087
2088 config CPU_HAS_PREFETCH
2089 bool
2090
2091 config CPU_GENERIC_DUMP_TLB
2092 bool
2093 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
2094
2095 config CPU_R4K_FPU
2096 bool
2097 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2098
2099 config CPU_R4K_CACHE_TLB
2100 bool
2101 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2102
2103 config MIPS_MT_SMP
2104 bool "MIPS MT SMP support (1 TC on each available VPE)"
2105 depends on SYS_SUPPORTS_MULTITHREADING
2106 select CPU_MIPSR2_IRQ_VI
2107 select CPU_MIPSR2_IRQ_EI
2108 select SYNC_R4K
2109 select MIPS_GIC_IPI
2110 select MIPS_MT
2111 select SMP
2112 select SMP_UP
2113 select SYS_SUPPORTS_SMP
2114 select SYS_SUPPORTS_SCHED_SMT
2115 select MIPS_PERF_SHARED_TC_COUNTERS
2116 help
2117 This is a kernel model which is known as SMVP. This is supported
2118 on cores with the MT ASE and uses the available VPEs to implement
2119 virtual processors which supports SMP. This is equivalent to the
2120 Intel Hyperthreading feature. For further information go to
2121 <http://www.imgtec.com/mips/mips-multithreading.asp>.
2122
2123 config MIPS_MT
2124 bool
2125
2126 config SCHED_SMT
2127 bool "SMT (multithreading) scheduler support"
2128 depends on SYS_SUPPORTS_SCHED_SMT
2129 default n
2130 help
2131 SMT scheduler support improves the CPU scheduler's decision making
2132 when dealing with MIPS MT enabled cores at a cost of slightly
2133 increased overhead in some places. If unsure say N here.
2134
2135 config SYS_SUPPORTS_SCHED_SMT
2136 bool
2137
2138 config SYS_SUPPORTS_MULTITHREADING
2139 bool
2140
2141 config MIPS_MT_FPAFF
2142 bool "Dynamic FPU affinity for FP-intensive threads"
2143 default y
2144 depends on MIPS_MT_SMP
2145
2146 config MIPSR2_TO_R6_EMULATOR
2147 bool "MIPS R2-to-R6 emulator"
2148 depends on CPU_MIPSR6 && !SMP
2149 default y
2150 help
2151 Choose this option if you want to run non-R6 MIPS userland code.
2152 Even if you say 'Y' here, the emulator will still be disabled by
2153 default. You can enable it using the 'mipsr2emu' kernel option.
2154 The only reason this is a build-time option is to save ~14K from the
2155 final kernel image.
2156 comment "MIPS R2-to-R6 emulator is only available for UP kernels"
2157 depends on SMP && CPU_MIPSR6
2158
2159 config MIPS_VPE_LOADER
2160 bool "VPE loader support."
2161 depends on SYS_SUPPORTS_MULTITHREADING && MODULES
2162 select CPU_MIPSR2_IRQ_VI
2163 select CPU_MIPSR2_IRQ_EI
2164 select MIPS_MT
2165 help
2166 Includes a loader for loading an elf relocatable object
2167 onto another VPE and running it.
2168
2169 config MIPS_VPE_LOADER_CMP
2170 bool
2171 default "y"
2172 depends on MIPS_VPE_LOADER && MIPS_CMP
2173
2174 config MIPS_VPE_LOADER_MT
2175 bool
2176 default "y"
2177 depends on MIPS_VPE_LOADER && !MIPS_CMP
2178
2179 config MIPS_VPE_LOADER_TOM
2180 bool "Load VPE program into memory hidden from linux"
2181 depends on MIPS_VPE_LOADER
2182 default y
2183 help
2184 The loader can use memory that is present but has been hidden from
2185 Linux using the kernel command line option "mem=xxMB". It's up to
2186 you to ensure the amount you put in the option and the space your
2187 program requires is less or equal to the amount physically present.
2188
2189 config MIPS_VPE_APSP_API
2190 bool "Enable support for AP/SP API (RTLX)"
2191 depends on MIPS_VPE_LOADER
2192 help
2193
2194 config MIPS_VPE_APSP_API_CMP
2195 bool
2196 default "y"
2197 depends on MIPS_VPE_APSP_API && MIPS_CMP
2198
2199 config MIPS_VPE_APSP_API_MT
2200 bool
2201 default "y"
2202 depends on MIPS_VPE_APSP_API && !MIPS_CMP
2203
2204 config MIPS_CMP
2205 bool "MIPS CMP framework support (DEPRECATED)"
2206 depends on SYS_SUPPORTS_MIPS_CMP
2207 select MIPS_GIC_IPI
2208 select SMP
2209 select SYNC_R4K
2210 select SYS_SUPPORTS_SMP
2211 select WEAK_ORDERING
2212 default n
2213 help
2214 Select this if you are using a bootloader which implements the "CMP
2215 framework" protocol (ie. YAMON) and want your kernel to make use of
2216 its ability to start secondary CPUs.
2217
2218 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2219 instead of this.
2220
2221 config MIPS_CPS
2222 bool "MIPS Coherent Processing System support"
2223 depends on SYS_SUPPORTS_MIPS_CPS && !64BIT
2224 select MIPS_CM
2225 select MIPS_CPC
2226 select MIPS_CPS_PM if HOTPLUG_CPU
2227 select MIPS_GIC_IPI
2228 select SMP
2229 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2230 select SYS_SUPPORTS_HOTPLUG_CPU
2231 select SYS_SUPPORTS_SMP
2232 select WEAK_ORDERING
2233 help
2234 Select this if you wish to run an SMP kernel across multiple cores
2235 within a MIPS Coherent Processing System. When this option is
2236 enabled the kernel will probe for other cores and boot them with
2237 no external assistance. It is safe to enable this when hardware
2238 support is unavailable.
2239
2240 config MIPS_CPS_PM
2241 depends on MIPS_CPS
2242 select MIPS_CPC
2243 bool
2244
2245 config MIPS_GIC_IPI
2246 bool
2247
2248 config MIPS_CM
2249 bool
2250
2251 config MIPS_CPC
2252 bool
2253
2254 config SB1_PASS_1_WORKAROUNDS
2255 bool
2256 depends on CPU_SB1_PASS_1
2257 default y
2258
2259 config SB1_PASS_2_WORKAROUNDS
2260 bool
2261 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2262 default y
2263
2264 config SB1_PASS_2_1_WORKAROUNDS
2265 bool
2266 depends on CPU_SB1 && CPU_SB1_PASS_2
2267 default y
2268
2269
2270 config ARCH_PHYS_ADDR_T_64BIT
2271 bool
2272
2273 choice
2274 prompt "SmartMIPS or microMIPS ASE support"
2275
2276 config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2277 bool "None"
2278 help
2279 Select this if you want neither microMIPS nor SmartMIPS support
2280
2281 config CPU_HAS_SMARTMIPS
2282 depends on SYS_SUPPORTS_SMARTMIPS
2283 bool "SmartMIPS"
2284 help
2285 SmartMIPS is a extension of the MIPS32 architecture aimed at
2286 increased security at both hardware and software level for
2287 smartcards. Enabling this option will allow proper use of the
2288 SmartMIPS instructions by Linux applications. However a kernel with
2289 this option will not work on a MIPS core without SmartMIPS core. If
2290 you don't know you probably don't have SmartMIPS and should say N
2291 here.
2292
2293 config CPU_MICROMIPS
2294 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2295 bool "microMIPS"
2296 help
2297 When this option is enabled the kernel will be built using the
2298 microMIPS ISA
2299
2300 endchoice
2301
2302 config CPU_HAS_MSA
2303 bool "Support for the MIPS SIMD Architecture (EXPERIMENTAL)"
2304 depends on CPU_SUPPORTS_MSA
2305 depends on 64BIT || MIPS_O32_FP64_SUPPORT
2306 help
2307 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2308 and a set of SIMD instructions to operate on them. When this option
2309 is enabled the kernel will support allocating & switching MSA
2310 vector register contexts. If you know that your kernel will only be
2311 running on CPUs which do not support MSA or that your userland will
2312 not be making use of it then you may wish to say N here to reduce
2313 the size & complexity of your kernel.
2314
2315 If unsure, say Y.
2316
2317 config CPU_HAS_WB
2318 bool
2319
2320 config XKS01
2321 bool
2322
2323 #
2324 # Vectored interrupt mode is an R2 feature
2325 #
2326 config CPU_MIPSR2_IRQ_VI
2327 bool
2328
2329 #
2330 # Extended interrupt mode is an R2 feature
2331 #
2332 config CPU_MIPSR2_IRQ_EI
2333 bool
2334
2335 config CPU_HAS_SYNC
2336 bool
2337 depends on !CPU_R3000
2338 default y
2339
2340 #
2341 # CPU non-features
2342 #
2343 config CPU_DADDI_WORKAROUNDS
2344 bool
2345
2346 config CPU_R4000_WORKAROUNDS
2347 bool
2348 select CPU_R4400_WORKAROUNDS
2349
2350 config CPU_R4400_WORKAROUNDS
2351 bool
2352
2353 #
2354 # - Highmem only makes sense for the 32-bit kernel.
2355 # - The current highmem code will only work properly on physically indexed
2356 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2357 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2358 # moment we protect the user and offer the highmem option only on machines
2359 # where it's known to be safe. This will not offer highmem on a few systems
2360 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2361 # indexed CPUs but we're playing safe.
2362 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2363 # know they might have memory configurations that could make use of highmem
2364 # support.
2365 #
2366 config HIGHMEM
2367 bool "High Memory Support"
2368 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2369
2370 config CPU_SUPPORTS_HIGHMEM
2371 bool
2372
2373 config SYS_SUPPORTS_HIGHMEM
2374 bool
2375
2376 config SYS_SUPPORTS_SMARTMIPS
2377 bool
2378
2379 config SYS_SUPPORTS_MICROMIPS
2380 bool
2381
2382 config SYS_SUPPORTS_MIPS16
2383 bool
2384 help
2385 This option must be set if a kernel might be executed on a MIPS16-
2386 enabled CPU even if MIPS16 is not actually being used. In other
2387 words, it makes the kernel MIPS16-tolerant.
2388
2389 config CPU_SUPPORTS_MSA
2390 bool
2391
2392 config ARCH_FLATMEM_ENABLE
2393 def_bool y
2394 depends on !NUMA && !CPU_LOONGSON2
2395
2396 config ARCH_DISCONTIGMEM_ENABLE
2397 bool
2398 default y if SGI_IP27
2399 help
2400 Say Y to support efficient handling of discontiguous physical memory,
2401 for architectures which are either NUMA (Non-Uniform Memory Access)
2402 or have huge holes in the physical address space for other reasons.
2403 See <file:Documentation/vm/numa> for more.
2404
2405 config ARCH_SPARSEMEM_ENABLE
2406 bool
2407 select SPARSEMEM_STATIC
2408
2409 config NUMA
2410 bool "NUMA Support"
2411 depends on SYS_SUPPORTS_NUMA
2412 help
2413 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2414 Access). This option improves performance on systems with more
2415 than two nodes; on two node systems it is generally better to
2416 leave it disabled; on single node systems disable this option
2417 disabled.
2418
2419 config SYS_SUPPORTS_NUMA
2420 bool
2421
2422 config NODES_SHIFT
2423 int
2424 default "6"
2425 depends on NEED_MULTIPLE_NODES
2426
2427 config HW_PERF_EVENTS
2428 bool "Enable hardware performance counter support for perf events"
2429 depends on PERF_EVENTS && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2430 default y
2431 help
2432 Enable hardware performance counter support for perf events. If
2433 disabled, perf events will use software events only.
2434
2435 source "mm/Kconfig"
2436
2437 config SMP
2438 bool "Multi-Processing support"
2439 depends on SYS_SUPPORTS_SMP
2440 help
2441 This enables support for systems with more than one CPU. If you have
2442 a system with only one CPU, say N. If you have a system with more
2443 than one CPU, say Y.
2444
2445 If you say N here, the kernel will run on uni- and multiprocessor
2446 machines, but will use only one CPU of a multiprocessor machine. If
2447 you say Y here, the kernel will run on many, but not all,
2448 uniprocessor machines. On a uniprocessor machine, the kernel
2449 will run faster if you say N here.
2450
2451 People using multiprocessor machines who say Y here should also say
2452 Y to "Enhanced Real Time Clock Support", below.
2453
2454 See also the SMP-HOWTO available at
2455 <http://www.tldp.org/docs.html#howto>.
2456
2457 If you don't know what to do here, say N.
2458
2459 config SMP_UP
2460 bool
2461
2462 config SYS_SUPPORTS_MIPS_CMP
2463 bool
2464
2465 config SYS_SUPPORTS_MIPS_CPS
2466 bool
2467
2468 config SYS_SUPPORTS_SMP
2469 bool
2470
2471 config NR_CPUS_DEFAULT_4
2472 bool
2473
2474 config NR_CPUS_DEFAULT_8
2475 bool
2476
2477 config NR_CPUS_DEFAULT_16
2478 bool
2479
2480 config NR_CPUS_DEFAULT_32
2481 bool
2482
2483 config NR_CPUS_DEFAULT_64
2484 bool
2485
2486 config NR_CPUS
2487 int "Maximum number of CPUs (2-256)"
2488 range 2 256
2489 depends on SMP
2490 default "4" if NR_CPUS_DEFAULT_4
2491 default "8" if NR_CPUS_DEFAULT_8
2492 default "16" if NR_CPUS_DEFAULT_16
2493 default "32" if NR_CPUS_DEFAULT_32
2494 default "64" if NR_CPUS_DEFAULT_64
2495 help
2496 This allows you to specify the maximum number of CPUs which this
2497 kernel will support. The maximum supported value is 32 for 32-bit
2498 kernel and 64 for 64-bit kernels; the minimum value which makes
2499 sense is 1 for Qemu (useful only for kernel debugging purposes)
2500 and 2 for all others.
2501
2502 This is purely to save memory - each supported CPU adds
2503 approximately eight kilobytes to the kernel image. For best
2504 performance should round up your number of processors to the next
2505 power of two.
2506
2507 config MIPS_PERF_SHARED_TC_COUNTERS
2508 bool
2509
2510 #
2511 # Timer Interrupt Frequency Configuration
2512 #
2513
2514 choice
2515 prompt "Timer frequency"
2516 default HZ_250
2517 help
2518 Allows the configuration of the timer frequency.
2519
2520 config HZ_48
2521 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2522
2523 config HZ_100
2524 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2525
2526 config HZ_128
2527 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2528
2529 config HZ_250
2530 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2531
2532 config HZ_256
2533 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2534
2535 config HZ_1000
2536 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2537
2538 config HZ_1024
2539 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2540
2541 endchoice
2542
2543 config SYS_SUPPORTS_48HZ
2544 bool
2545
2546 config SYS_SUPPORTS_100HZ
2547 bool
2548
2549 config SYS_SUPPORTS_128HZ
2550 bool
2551
2552 config SYS_SUPPORTS_250HZ
2553 bool
2554
2555 config SYS_SUPPORTS_256HZ
2556 bool
2557
2558 config SYS_SUPPORTS_1000HZ
2559 bool
2560
2561 config SYS_SUPPORTS_1024HZ
2562 bool
2563
2564 config SYS_SUPPORTS_ARBIT_HZ
2565 bool
2566 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2567 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2568 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2569 !SYS_SUPPORTS_1024HZ
2570
2571 config HZ
2572 int
2573 default 48 if HZ_48
2574 default 100 if HZ_100
2575 default 128 if HZ_128
2576 default 250 if HZ_250
2577 default 256 if HZ_256
2578 default 1000 if HZ_1000
2579 default 1024 if HZ_1024
2580
2581 config SCHED_HRTICK
2582 def_bool HIGH_RES_TIMERS
2583
2584 source "kernel/Kconfig.preempt"
2585
2586 config KEXEC
2587 bool "Kexec system call"
2588 help
2589 kexec is a system call that implements the ability to shutdown your
2590 current kernel, and to start another kernel. It is like a reboot
2591 but it is independent of the system firmware. And like a reboot
2592 you can start any kernel with it, not just Linux.
2593
2594 The name comes from the similarity to the exec system call.
2595
2596 It is an ongoing process to be certain the hardware in a machine
2597 is properly shutdown, so do not be surprised if this code does not
2598 initially work for you. As of this writing the exact hardware
2599 interface is strongly in flux, so no good recommendation can be
2600 made.
2601
2602 config CRASH_DUMP
2603 bool "Kernel crash dumps"
2604 help
2605 Generate crash dump after being started by kexec.
2606 This should be normally only set in special crash dump kernels
2607 which are loaded in the main kernel with kexec-tools into
2608 a specially reserved region and then later executed after
2609 a crash by kdump/kexec. The crash dump kernel must be compiled
2610 to a memory address not used by the main kernel or firmware using
2611 PHYSICAL_START.
2612
2613 config PHYSICAL_START
2614 hex "Physical address where the kernel is loaded"
2615 default "0xffffffff84000000" if 64BIT
2616 default "0x84000000" if 32BIT
2617 depends on CRASH_DUMP
2618 help
2619 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2620 If you plan to use kernel for capturing the crash dump change
2621 this value to start of the reserved region (the "X" value as
2622 specified in the "crashkernel=YM@XM" command line boot parameter
2623 passed to the panic-ed kernel).
2624
2625 config SECCOMP
2626 bool "Enable seccomp to safely compute untrusted bytecode"
2627 depends on PROC_FS
2628 default y
2629 help
2630 This kernel feature is useful for number crunching applications
2631 that may need to compute untrusted bytecode during their
2632 execution. By using pipes or other transports made available to
2633 the process as file descriptors supporting the read/write
2634 syscalls, it's possible to isolate those applications in
2635 their own address space using seccomp. Once seccomp is
2636 enabled via /proc/<pid>/seccomp, it cannot be disabled
2637 and the task is only allowed to execute a few safe syscalls
2638 defined by each seccomp mode.
2639
2640 If unsure, say Y. Only embedded should say N here.
2641
2642 config MIPS_O32_FP64_SUPPORT
2643 bool "Support for O32 binaries using 64-bit FP (EXPERIMENTAL)"
2644 depends on 32BIT || MIPS32_O32
2645 help
2646 When this is enabled, the kernel will support use of 64-bit floating
2647 point registers with binaries using the O32 ABI along with the
2648 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2649 32-bit MIPS systems this support is at the cost of increasing the
2650 size and complexity of the compiled FPU emulator. Thus if you are
2651 running a MIPS32 system and know that none of your userland binaries
2652 will require 64-bit floating point, you may wish to reduce the size
2653 of your kernel & potentially improve FP emulation performance by
2654 saying N here.
2655
2656 Although binutils currently supports use of this flag the details
2657 concerning its effect upon the O32 ABI in userland are still being
2658 worked on. In order to avoid userland becoming dependant upon current
2659 behaviour before the details have been finalised, this option should
2660 be considered experimental and only enabled by those working upon
2661 said details.
2662
2663 If unsure, say N.
2664
2665 config USE_OF
2666 bool
2667 select OF
2668 select OF_EARLY_FLATTREE
2669 select IRQ_DOMAIN
2670
2671 config BUILTIN_DTB
2672 bool
2673
2674 endmenu
2675
2676 config LOCKDEP_SUPPORT
2677 bool
2678 default y
2679
2680 config STACKTRACE_SUPPORT
2681 bool
2682 default y
2683
2684 config PGTABLE_LEVELS
2685 int
2686 default 3 if 64BIT && !PAGE_SIZE_64KB
2687 default 2
2688
2689 source "init/Kconfig"
2690
2691 source "kernel/Kconfig.freezer"
2692
2693 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2694
2695 config HW_HAS_EISA
2696 bool
2697 config HW_HAS_PCI
2698 bool
2699
2700 config PCI
2701 bool "Support for PCI controller"
2702 depends on HW_HAS_PCI
2703 select PCI_DOMAINS
2704 select NO_GENERIC_PCI_IOPORT_MAP
2705 help
2706 Find out whether you have a PCI motherboard. PCI is the name of a
2707 bus system, i.e. the way the CPU talks to the other stuff inside
2708 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2709 say Y, otherwise N.
2710
2711 config HT_PCI
2712 bool "Support for HT-linked PCI"
2713 default y
2714 depends on CPU_LOONGSON3
2715 select PCI
2716 select PCI_DOMAINS
2717 help
2718 Loongson family machines use Hyper-Transport bus for inter-core
2719 connection and device connection. The PCI bus is a subordinate
2720 linked at HT. Choose Y for Loongson-3 based machines.
2721
2722 config PCI_DOMAINS
2723 bool
2724
2725 source "drivers/pci/Kconfig"
2726
2727 source "drivers/pci/pcie/Kconfig"
2728
2729 #
2730 # ISA support is now enabled via select. Too many systems still have the one
2731 # or other ISA chip on the board that users don't know about so don't expect
2732 # users to choose the right thing ...
2733 #
2734 config ISA
2735 bool
2736
2737 config EISA
2738 bool "EISA support"
2739 depends on HW_HAS_EISA
2740 select ISA
2741 select GENERIC_ISA_DMA
2742 ---help---
2743 The Extended Industry Standard Architecture (EISA) bus was
2744 developed as an open alternative to the IBM MicroChannel bus.
2745
2746 The EISA bus provided some of the features of the IBM MicroChannel
2747 bus while maintaining backward compatibility with cards made for
2748 the older ISA bus. The EISA bus saw limited use between 1988 and
2749 1995 when it was made obsolete by the PCI bus.
2750
2751 Say Y here if you are building a kernel for an EISA-based machine.
2752
2753 Otherwise, say N.
2754
2755 source "drivers/eisa/Kconfig"
2756
2757 config TC
2758 bool "TURBOchannel support"
2759 depends on MACH_DECSTATION
2760 help
2761 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2762 processors. TURBOchannel programming specifications are available
2763 at:
2764 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2765 and:
2766 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2767 Linux driver support status is documented at:
2768 <http://www.linux-mips.org/wiki/DECstation>
2769
2770 config MMU
2771 bool
2772 default y
2773
2774 config I8253
2775 bool
2776 select CLKSRC_I8253
2777 select CLKEVT_I8253
2778 select MIPS_EXTERNAL_TIMER
2779
2780 config ZONE_DMA
2781 bool
2782
2783 config ZONE_DMA32
2784 bool
2785
2786 source "drivers/pcmcia/Kconfig"
2787
2788 source "drivers/pci/hotplug/Kconfig"
2789
2790 config RAPIDIO
2791 tristate "RapidIO support"
2792 depends on PCI
2793 default n
2794 help
2795 If you say Y here, the kernel will include drivers and
2796 infrastructure code to support RapidIO interconnect devices.
2797
2798 source "drivers/rapidio/Kconfig"
2799
2800 endmenu
2801
2802 menu "Executable file formats"
2803
2804 source "fs/Kconfig.binfmt"
2805
2806 config TRAD_SIGNALS
2807 bool
2808
2809 config MIPS32_COMPAT
2810 bool
2811
2812 config COMPAT
2813 bool
2814
2815 config SYSVIPC_COMPAT
2816 bool
2817
2818 config MIPS32_O32
2819 bool "Kernel support for o32 binaries"
2820 depends on 64BIT
2821 select ARCH_WANT_OLD_COMPAT_IPC
2822 select COMPAT
2823 select MIPS32_COMPAT
2824 select SYSVIPC_COMPAT if SYSVIPC
2825 help
2826 Select this option if you want to run o32 binaries. These are pure
2827 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2828 existing binaries are in this format.
2829
2830 If unsure, say Y.
2831
2832 config MIPS32_N32
2833 bool "Kernel support for n32 binaries"
2834 depends on 64BIT
2835 select COMPAT
2836 select MIPS32_COMPAT
2837 select SYSVIPC_COMPAT if SYSVIPC
2838 help
2839 Select this option if you want to run n32 binaries. These are
2840 64-bit binaries using 32-bit quantities for addressing and certain
2841 data that would normally be 64-bit. They are used in special
2842 cases.
2843
2844 If unsure, say N.
2845
2846 config BINFMT_ELF32
2847 bool
2848 default y if MIPS32_O32 || MIPS32_N32
2849
2850 endmenu
2851
2852 menu "Power management options"
2853
2854 config ARCH_HIBERNATION_POSSIBLE
2855 def_bool y
2856 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2857
2858 config ARCH_SUSPEND_POSSIBLE
2859 def_bool y
2860 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2861
2862 source "kernel/power/Kconfig"
2863
2864 endmenu
2865
2866 config MIPS_EXTERNAL_TIMER
2867 bool
2868
2869 menu "CPU Power Management"
2870
2871 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
2872 source "drivers/cpufreq/Kconfig"
2873 endif
2874
2875 source "drivers/cpuidle/Kconfig"
2876
2877 endmenu
2878
2879 source "net/Kconfig"
2880
2881 source "drivers/Kconfig"
2882
2883 source "drivers/firmware/Kconfig"
2884
2885 source "fs/Kconfig"
2886
2887 source "arch/mips/Kconfig.debug"
2888
2889 source "security/Kconfig"
2890
2891 source "crypto/Kconfig"
2892
2893 source "lib/Kconfig"
2894
2895 source "arch/mips/kvm/Kconfig"
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