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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_LOONGSON
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_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_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_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 CLKDEV_LOOKUP
128 select IRQ_CPU
129 select MIPS_MACHINE
130 select SYS_HAS_CPU_MIPS32_R2
131 select SYS_HAS_EARLY_PRINTK
132 select SYS_SUPPORTS_32BIT_KERNEL
133 select SYS_SUPPORTS_BIG_ENDIAN
134 select SYS_SUPPORTS_MIPS16
135 help
136 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
137
138 config BMIPS_GENERIC
139 bool "Broadcom Generic BMIPS kernel"
140 select BOOT_RAW
141 select NO_EXCEPT_FILL
142 select USE_OF
143 select CEVT_R4K
144 select CSRC_R4K
145 select SYNC_R4K
146 select COMMON_CLK
147 select BCM7038_L1_IRQ
148 select BCM7120_L2_IRQ
149 select BRCMSTB_L2_IRQ
150 select IRQ_CPU
151 select RAW_IRQ_ACCESSORS
152 select DMA_NONCOHERENT
153 select SYS_SUPPORTS_32BIT_KERNEL
154 select SYS_SUPPORTS_LITTLE_ENDIAN
155 select SYS_SUPPORTS_BIG_ENDIAN
156 select SYS_SUPPORTS_HIGHMEM
157 select SYS_HAS_CPU_BMIPS32_3300
158 select SYS_HAS_CPU_BMIPS4350
159 select SYS_HAS_CPU_BMIPS4380
160 select SYS_HAS_CPU_BMIPS5000
161 select SWAP_IO_SPACE
162 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
163 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
164 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
165 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
166 help
167 Build a generic DT-based kernel image that boots on select
168 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
169 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
170 must be set appropriately for your board.
171
172 config BCM47XX
173 bool "Broadcom BCM47XX based boards"
174 select ARCH_WANT_OPTIONAL_GPIOLIB
175 select BOOT_RAW
176 select CEVT_R4K
177 select CSRC_R4K
178 select DMA_NONCOHERENT
179 select HW_HAS_PCI
180 select IRQ_CPU
181 select SYS_HAS_CPU_MIPS32_R1
182 select NO_EXCEPT_FILL
183 select SYS_SUPPORTS_32BIT_KERNEL
184 select SYS_SUPPORTS_LITTLE_ENDIAN
185 select SYS_SUPPORTS_MIPS16
186 select SYS_HAS_EARLY_PRINTK
187 select USE_GENERIC_EARLY_PRINTK_8250
188 select GPIOLIB
189 select LEDS_GPIO_REGISTER
190 help
191 Support for BCM47XX based boards
192
193 config BCM63XX
194 bool "Broadcom BCM63XX based boards"
195 select BOOT_RAW
196 select CEVT_R4K
197 select CSRC_R4K
198 select SYNC_R4K
199 select DMA_NONCOHERENT
200 select IRQ_CPU
201 select SYS_SUPPORTS_32BIT_KERNEL
202 select SYS_SUPPORTS_BIG_ENDIAN
203 select SYS_HAS_EARLY_PRINTK
204 select SWAP_IO_SPACE
205 select ARCH_REQUIRE_GPIOLIB
206 select HAVE_CLK
207 select MIPS_L1_CACHE_SHIFT_4
208 help
209 Support for BCM63XX based boards
210
211 config MIPS_COBALT
212 bool "Cobalt Server"
213 select CEVT_R4K
214 select CSRC_R4K
215 select CEVT_GT641XX
216 select DMA_NONCOHERENT
217 select HW_HAS_PCI
218 select I8253
219 select I8259
220 select IRQ_CPU
221 select IRQ_GT641XX
222 select PCI_GT64XXX_PCI0
223 select PCI
224 select SYS_HAS_CPU_NEVADA
225 select SYS_HAS_EARLY_PRINTK
226 select SYS_SUPPORTS_32BIT_KERNEL
227 select SYS_SUPPORTS_64BIT_KERNEL
228 select SYS_SUPPORTS_LITTLE_ENDIAN
229 select USE_GENERIC_EARLY_PRINTK_8250
230
231 config MACH_DECSTATION
232 bool "DECstations"
233 select BOOT_ELF32
234 select CEVT_DS1287
235 select CEVT_R4K if CPU_R4X00
236 select CSRC_IOASIC
237 select CSRC_R4K if CPU_R4X00
238 select CPU_DADDI_WORKAROUNDS if 64BIT
239 select CPU_R4000_WORKAROUNDS if 64BIT
240 select CPU_R4400_WORKAROUNDS if 64BIT
241 select DMA_NONCOHERENT
242 select NO_IOPORT_MAP
243 select IRQ_CPU
244 select SYS_HAS_CPU_R3000
245 select SYS_HAS_CPU_R4X00
246 select SYS_SUPPORTS_32BIT_KERNEL
247 select SYS_SUPPORTS_64BIT_KERNEL
248 select SYS_SUPPORTS_LITTLE_ENDIAN
249 select SYS_SUPPORTS_128HZ
250 select SYS_SUPPORTS_256HZ
251 select SYS_SUPPORTS_1024HZ
252 select MIPS_L1_CACHE_SHIFT_4
253 help
254 This enables support for DEC's MIPS based workstations. For details
255 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
256 DECstation porting pages on <http://decstation.unix-ag.org/>.
257
258 If you have one of the following DECstation Models you definitely
259 want to choose R4xx0 for the CPU Type:
260
261 DECstation 5000/50
262 DECstation 5000/150
263 DECstation 5000/260
264 DECsystem 5900/260
265
266 otherwise choose R3000.
267
268 config MACH_JAZZ
269 bool "Jazz family of machines"
270 select FW_ARC
271 select FW_ARC32
272 select ARCH_MAY_HAVE_PC_FDC
273 select CEVT_R4K
274 select CSRC_R4K
275 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
276 select GENERIC_ISA_DMA
277 select HAVE_PCSPKR_PLATFORM
278 select IRQ_CPU
279 select I8253
280 select I8259
281 select ISA
282 select SYS_HAS_CPU_R4X00
283 select SYS_SUPPORTS_32BIT_KERNEL
284 select SYS_SUPPORTS_64BIT_KERNEL
285 select SYS_SUPPORTS_100HZ
286 help
287 This a family of machines based on the MIPS R4030 chipset which was
288 used by several vendors to build RISC/os and Windows NT workstations.
289 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
290 Olivetti M700-10 workstations.
291
292 config MACH_JZ4740
293 bool "Ingenic JZ4740 based machines"
294 select SYS_HAS_CPU_MIPS32_R1
295 select SYS_SUPPORTS_32BIT_KERNEL
296 select SYS_SUPPORTS_LITTLE_ENDIAN
297 select SYS_SUPPORTS_ZBOOT_UART16550
298 select DMA_NONCOHERENT
299 select IRQ_CPU
300 select ARCH_REQUIRE_GPIOLIB
301 select SYS_HAS_EARLY_PRINTK
302 select HAVE_CLK
303 select GENERIC_IRQ_CHIP
304
305 config LANTIQ
306 bool "Lantiq based platforms"
307 select DMA_NONCOHERENT
308 select IRQ_CPU
309 select CEVT_R4K
310 select CSRC_R4K
311 select SYS_HAS_CPU_MIPS32_R1
312 select SYS_HAS_CPU_MIPS32_R2
313 select SYS_SUPPORTS_BIG_ENDIAN
314 select SYS_SUPPORTS_32BIT_KERNEL
315 select SYS_SUPPORTS_MIPS16
316 select SYS_SUPPORTS_MULTITHREADING
317 select SYS_HAS_EARLY_PRINTK
318 select ARCH_REQUIRE_GPIOLIB
319 select SWAP_IO_SPACE
320 select BOOT_RAW
321 select HAVE_MACH_CLKDEV
322 select CLKDEV_LOOKUP
323 select USE_OF
324 select PINCTRL
325 select PINCTRL_LANTIQ
326 select ARCH_HAS_RESET_CONTROLLER
327 select RESET_CONTROLLER
328
329 config LASAT
330 bool "LASAT Networks platforms"
331 select CEVT_R4K
332 select CRC32
333 select CSRC_R4K
334 select DMA_NONCOHERENT
335 select SYS_HAS_EARLY_PRINTK
336 select HW_HAS_PCI
337 select IRQ_CPU
338 select PCI_GT64XXX_PCI0
339 select MIPS_NILE4
340 select R5000_CPU_SCACHE
341 select SYS_HAS_CPU_R5000
342 select SYS_SUPPORTS_32BIT_KERNEL
343 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
344 select SYS_SUPPORTS_LITTLE_ENDIAN
345
346 config MACH_LOONGSON
347 bool "Loongson family of machines"
348 select SYS_SUPPORTS_ZBOOT
349 help
350 This enables the support of Loongson family of machines.
351
352 Loongson is a family of general-purpose MIPS-compatible CPUs.
353 developed at Institute of Computing Technology (ICT),
354 Chinese Academy of Sciences (CAS) in the People's Republic
355 of China. The chief architect is Professor Weiwu Hu.
356
357 config MACH_LOONGSON1
358 bool "Loongson 1 family of machines"
359 select SYS_SUPPORTS_ZBOOT
360 help
361 This enables support for the Loongson 1 based machines.
362
363 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
364 the ICT (Institute of Computing Technology) and the Chinese Academy
365 of Sciences.
366
367 config MACH_PISTACHIO
368 bool "IMG Pistachio SoC based boards"
369 select ARCH_REQUIRE_GPIOLIB
370 select BOOT_ELF32
371 select BOOT_RAW
372 select CEVT_R4K
373 select CLKSRC_MIPS_GIC
374 select COMMON_CLK
375 select CSRC_R4K
376 select DMA_MAYBE_COHERENT
377 select IRQ_CPU
378 select LIBFDT
379 select MFD_SYSCON
380 select MIPS_CPU_SCACHE
381 select MIPS_GIC
382 select PINCTRL
383 select REGULATOR
384 select SYS_HAS_CPU_MIPS32_R2
385 select SYS_SUPPORTS_32BIT_KERNEL
386 select SYS_SUPPORTS_LITTLE_ENDIAN
387 select SYS_SUPPORTS_MIPS_CPS
388 select SYS_SUPPORTS_MULTITHREADING
389 select SYS_SUPPORTS_ZBOOT
390 select USE_OF
391 help
392 This enables support for the IMG Pistachio SoC platform.
393
394 config MIPS_MALTA
395 bool "MIPS Malta board"
396 select ARCH_MAY_HAVE_PC_FDC
397 select BOOT_ELF32
398 select BOOT_RAW
399 select CEVT_R4K
400 select CSRC_R4K
401 select CLKSRC_MIPS_GIC
402 select DMA_MAYBE_COHERENT
403 select GENERIC_ISA_DMA
404 select HAVE_PCSPKR_PLATFORM
405 select IRQ_CPU
406 select MIPS_GIC
407 select HW_HAS_PCI
408 select I8253
409 select I8259
410 select MIPS_BONITO64
411 select MIPS_CPU_SCACHE
412 select MIPS_L1_CACHE_SHIFT_6
413 select PCI_GT64XXX_PCI0
414 select MIPS_MSC
415 select SWAP_IO_SPACE
416 select SYS_HAS_CPU_MIPS32_R1
417 select SYS_HAS_CPU_MIPS32_R2
418 select SYS_HAS_CPU_MIPS32_R3_5
419 select SYS_HAS_CPU_MIPS32_R5
420 select SYS_HAS_CPU_MIPS32_R6
421 select SYS_HAS_CPU_MIPS64_R1
422 select SYS_HAS_CPU_MIPS64_R2
423 select SYS_HAS_CPU_MIPS64_R6
424 select SYS_HAS_CPU_NEVADA
425 select SYS_HAS_CPU_RM7000
426 select SYS_SUPPORTS_32BIT_KERNEL
427 select SYS_SUPPORTS_64BIT_KERNEL
428 select SYS_SUPPORTS_BIG_ENDIAN
429 select SYS_SUPPORTS_HIGHMEM
430 select SYS_SUPPORTS_LITTLE_ENDIAN
431 select SYS_SUPPORTS_MICROMIPS
432 select SYS_SUPPORTS_MIPS_CMP
433 select SYS_SUPPORTS_MIPS_CPS
434 select SYS_SUPPORTS_MIPS16
435 select SYS_SUPPORTS_MULTITHREADING
436 select SYS_SUPPORTS_SMARTMIPS
437 select SYS_SUPPORTS_ZBOOT
438 help
439 This enables support for the MIPS Technologies Malta evaluation
440 board.
441
442 config MIPS_SEAD3
443 bool "MIPS SEAD3 board"
444 select BOOT_ELF32
445 select BOOT_RAW
446 select BUILTIN_DTB
447 select CEVT_R4K
448 select CSRC_R4K
449 select CLKSRC_MIPS_GIC
450 select CPU_MIPSR2_IRQ_VI
451 select CPU_MIPSR2_IRQ_EI
452 select DMA_NONCOHERENT
453 select IRQ_CPU
454 select MIPS_GIC
455 select LIBFDT
456 select MIPS_MSC
457 select SYS_HAS_CPU_MIPS32_R1
458 select SYS_HAS_CPU_MIPS32_R2
459 select SYS_HAS_CPU_MIPS64_R1
460 select SYS_HAS_EARLY_PRINTK
461 select SYS_SUPPORTS_32BIT_KERNEL
462 select SYS_SUPPORTS_64BIT_KERNEL
463 select SYS_SUPPORTS_BIG_ENDIAN
464 select SYS_SUPPORTS_LITTLE_ENDIAN
465 select SYS_SUPPORTS_SMARTMIPS
466 select SYS_SUPPORTS_MICROMIPS
467 select SYS_SUPPORTS_MIPS16
468 select USB_EHCI_BIG_ENDIAN_DESC
469 select USB_EHCI_BIG_ENDIAN_MMIO
470 select USE_OF
471 help
472 This enables support for the MIPS Technologies SEAD3 evaluation
473 board.
474
475 config NEC_MARKEINS
476 bool "NEC EMMA2RH Mark-eins board"
477 select SOC_EMMA2RH
478 select HW_HAS_PCI
479 help
480 This enables support for the NEC Electronics Mark-eins boards.
481
482 config MACH_VR41XX
483 bool "NEC VR4100 series based machines"
484 select CEVT_R4K
485 select CSRC_R4K
486 select SYS_HAS_CPU_VR41XX
487 select SYS_SUPPORTS_MIPS16
488 select ARCH_REQUIRE_GPIOLIB
489
490 config NXP_STB220
491 bool "NXP STB220 board"
492 select SOC_PNX833X
493 help
494 Support for NXP Semiconductors STB220 Development Board.
495
496 config NXP_STB225
497 bool "NXP 225 board"
498 select SOC_PNX833X
499 select SOC_PNX8335
500 help
501 Support for NXP Semiconductors STB225 Development Board.
502
503 config PMC_MSP
504 bool "PMC-Sierra MSP chipsets"
505 select CEVT_R4K
506 select CSRC_R4K
507 select DMA_NONCOHERENT
508 select SWAP_IO_SPACE
509 select NO_EXCEPT_FILL
510 select BOOT_RAW
511 select SYS_HAS_CPU_MIPS32_R1
512 select SYS_HAS_CPU_MIPS32_R2
513 select SYS_SUPPORTS_32BIT_KERNEL
514 select SYS_SUPPORTS_BIG_ENDIAN
515 select SYS_SUPPORTS_MIPS16
516 select IRQ_CPU
517 select SERIAL_8250
518 select SERIAL_8250_CONSOLE
519 select USB_EHCI_BIG_ENDIAN_MMIO
520 select USB_EHCI_BIG_ENDIAN_DESC
521 help
522 This adds support for the PMC-Sierra family of Multi-Service
523 Processor System-On-A-Chips. These parts include a number
524 of integrated peripherals, interfaces and DSPs in addition to
525 a variety of MIPS cores.
526
527 config RALINK
528 bool "Ralink based machines"
529 select CEVT_R4K
530 select CSRC_R4K
531 select BOOT_RAW
532 select DMA_NONCOHERENT
533 select IRQ_CPU
534 select USE_OF
535 select SYS_HAS_CPU_MIPS32_R1
536 select SYS_HAS_CPU_MIPS32_R2
537 select SYS_SUPPORTS_32BIT_KERNEL
538 select SYS_SUPPORTS_LITTLE_ENDIAN
539 select SYS_SUPPORTS_MIPS16
540 select SYS_HAS_EARLY_PRINTK
541 select HAVE_MACH_CLKDEV
542 select CLKDEV_LOOKUP
543 select ARCH_HAS_RESET_CONTROLLER
544 select RESET_CONTROLLER
545
546 config SGI_IP22
547 bool "SGI IP22 (Indy/Indigo2)"
548 select FW_ARC
549 select FW_ARC32
550 select BOOT_ELF32
551 select CEVT_R4K
552 select CSRC_R4K
553 select DEFAULT_SGI_PARTITION
554 select DMA_NONCOHERENT
555 select HW_HAS_EISA
556 select I8253
557 select I8259
558 select IP22_CPU_SCACHE
559 select IRQ_CPU
560 select GENERIC_ISA_DMA_SUPPORT_BROKEN
561 select SGI_HAS_I8042
562 select SGI_HAS_INDYDOG
563 select SGI_HAS_HAL2
564 select SGI_HAS_SEEQ
565 select SGI_HAS_WD93
566 select SGI_HAS_ZILOG
567 select SWAP_IO_SPACE
568 select SYS_HAS_CPU_R4X00
569 select SYS_HAS_CPU_R5000
570 #
571 # Disable EARLY_PRINTK for now since it leads to overwritten prom
572 # memory during early boot on some machines.
573 #
574 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
575 # for a more details discussion
576 #
577 # select SYS_HAS_EARLY_PRINTK
578 select SYS_SUPPORTS_32BIT_KERNEL
579 select SYS_SUPPORTS_64BIT_KERNEL
580 select SYS_SUPPORTS_BIG_ENDIAN
581 select MIPS_L1_CACHE_SHIFT_7
582 help
583 This are the SGI Indy, Challenge S and Indigo2, as well as certain
584 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
585 that runs on these, say Y here.
586
587 config SGI_IP27
588 bool "SGI IP27 (Origin200/2000)"
589 select FW_ARC
590 select FW_ARC64
591 select BOOT_ELF64
592 select DEFAULT_SGI_PARTITION
593 select DMA_COHERENT
594 select SYS_HAS_EARLY_PRINTK
595 select HW_HAS_PCI
596 select NR_CPUS_DEFAULT_64
597 select SYS_HAS_CPU_R10000
598 select SYS_SUPPORTS_64BIT_KERNEL
599 select SYS_SUPPORTS_BIG_ENDIAN
600 select SYS_SUPPORTS_NUMA
601 select SYS_SUPPORTS_SMP
602 select MIPS_L1_CACHE_SHIFT_7
603 help
604 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
605 workstations. To compile a Linux kernel that runs on these, say Y
606 here.
607
608 config SGI_IP28
609 bool "SGI IP28 (Indigo2 R10k)"
610 select FW_ARC
611 select FW_ARC64
612 select BOOT_ELF64
613 select CEVT_R4K
614 select CSRC_R4K
615 select DEFAULT_SGI_PARTITION
616 select DMA_NONCOHERENT
617 select GENERIC_ISA_DMA_SUPPORT_BROKEN
618 select IRQ_CPU
619 select HW_HAS_EISA
620 select I8253
621 select I8259
622 select SGI_HAS_I8042
623 select SGI_HAS_INDYDOG
624 select SGI_HAS_HAL2
625 select SGI_HAS_SEEQ
626 select SGI_HAS_WD93
627 select SGI_HAS_ZILOG
628 select SWAP_IO_SPACE
629 select SYS_HAS_CPU_R10000
630 #
631 # Disable EARLY_PRINTK for now since it leads to overwritten prom
632 # memory during early boot on some machines.
633 #
634 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
635 # for a more details discussion
636 #
637 # select SYS_HAS_EARLY_PRINTK
638 select SYS_SUPPORTS_64BIT_KERNEL
639 select SYS_SUPPORTS_BIG_ENDIAN
640 select MIPS_L1_CACHE_SHIFT_7
641 help
642 This is the SGI Indigo2 with R10000 processor. To compile a Linux
643 kernel that runs on these, say Y here.
644
645 config SGI_IP32
646 bool "SGI IP32 (O2)"
647 select FW_ARC
648 select FW_ARC32
649 select BOOT_ELF32
650 select CEVT_R4K
651 select CSRC_R4K
652 select DMA_NONCOHERENT
653 select HW_HAS_PCI
654 select IRQ_CPU
655 select R5000_CPU_SCACHE
656 select RM7000_CPU_SCACHE
657 select SYS_HAS_CPU_R5000
658 select SYS_HAS_CPU_R10000 if BROKEN
659 select SYS_HAS_CPU_RM7000
660 select SYS_HAS_CPU_NEVADA
661 select SYS_SUPPORTS_64BIT_KERNEL
662 select SYS_SUPPORTS_BIG_ENDIAN
663 help
664 If you want this kernel to run on SGI O2 workstation, say Y here.
665
666 config SIBYTE_CRHINE
667 bool "Sibyte BCM91120C-CRhine"
668 select BOOT_ELF32
669 select DMA_COHERENT
670 select SIBYTE_BCM1120
671 select SWAP_IO_SPACE
672 select SYS_HAS_CPU_SB1
673 select SYS_SUPPORTS_BIG_ENDIAN
674 select SYS_SUPPORTS_LITTLE_ENDIAN
675
676 config SIBYTE_CARMEL
677 bool "Sibyte BCM91120x-Carmel"
678 select BOOT_ELF32
679 select DMA_COHERENT
680 select SIBYTE_BCM1120
681 select SWAP_IO_SPACE
682 select SYS_HAS_CPU_SB1
683 select SYS_SUPPORTS_BIG_ENDIAN
684 select SYS_SUPPORTS_LITTLE_ENDIAN
685
686 config SIBYTE_CRHONE
687 bool "Sibyte BCM91125C-CRhone"
688 select BOOT_ELF32
689 select DMA_COHERENT
690 select SIBYTE_BCM1125
691 select SWAP_IO_SPACE
692 select SYS_HAS_CPU_SB1
693 select SYS_SUPPORTS_BIG_ENDIAN
694 select SYS_SUPPORTS_HIGHMEM
695 select SYS_SUPPORTS_LITTLE_ENDIAN
696
697 config SIBYTE_RHONE
698 bool "Sibyte BCM91125E-Rhone"
699 select BOOT_ELF32
700 select DMA_COHERENT
701 select SIBYTE_BCM1125H
702 select SWAP_IO_SPACE
703 select SYS_HAS_CPU_SB1
704 select SYS_SUPPORTS_BIG_ENDIAN
705 select SYS_SUPPORTS_LITTLE_ENDIAN
706
707 config SIBYTE_SWARM
708 bool "Sibyte BCM91250A-SWARM"
709 select BOOT_ELF32
710 select DMA_COHERENT
711 select HAVE_PATA_PLATFORM
712 select SIBYTE_SB1250
713 select SWAP_IO_SPACE
714 select SYS_HAS_CPU_SB1
715 select SYS_SUPPORTS_BIG_ENDIAN
716 select SYS_SUPPORTS_HIGHMEM
717 select SYS_SUPPORTS_LITTLE_ENDIAN
718 select ZONE_DMA32 if 64BIT
719
720 config SIBYTE_LITTLESUR
721 bool "Sibyte BCM91250C2-LittleSur"
722 select BOOT_ELF32
723 select DMA_COHERENT
724 select HAVE_PATA_PLATFORM
725 select SIBYTE_SB1250
726 select SWAP_IO_SPACE
727 select SYS_HAS_CPU_SB1
728 select SYS_SUPPORTS_BIG_ENDIAN
729 select SYS_SUPPORTS_HIGHMEM
730 select SYS_SUPPORTS_LITTLE_ENDIAN
731
732 config SIBYTE_SENTOSA
733 bool "Sibyte BCM91250E-Sentosa"
734 select BOOT_ELF32
735 select DMA_COHERENT
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_LITTLE_ENDIAN
741
742 config SIBYTE_BIGSUR
743 bool "Sibyte BCM91480B-BigSur"
744 select BOOT_ELF32
745 select DMA_COHERENT
746 select NR_CPUS_DEFAULT_4
747 select SIBYTE_BCM1x80
748 select SWAP_IO_SPACE
749 select SYS_HAS_CPU_SB1
750 select SYS_SUPPORTS_BIG_ENDIAN
751 select SYS_SUPPORTS_HIGHMEM
752 select SYS_SUPPORTS_LITTLE_ENDIAN
753 select ZONE_DMA32 if 64BIT
754
755 config SNI_RM
756 bool "SNI RM200/300/400"
757 select FW_ARC if CPU_LITTLE_ENDIAN
758 select FW_ARC32 if CPU_LITTLE_ENDIAN
759 select FW_SNIPROM if CPU_BIG_ENDIAN
760 select ARCH_MAY_HAVE_PC_FDC
761 select BOOT_ELF32
762 select CEVT_R4K
763 select CSRC_R4K
764 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
765 select DMA_NONCOHERENT
766 select GENERIC_ISA_DMA
767 select HAVE_PCSPKR_PLATFORM
768 select HW_HAS_EISA
769 select HW_HAS_PCI
770 select IRQ_CPU
771 select I8253
772 select I8259
773 select ISA
774 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
775 select SYS_HAS_CPU_R4X00
776 select SYS_HAS_CPU_R5000
777 select SYS_HAS_CPU_R10000
778 select R5000_CPU_SCACHE
779 select SYS_HAS_EARLY_PRINTK
780 select SYS_SUPPORTS_32BIT_KERNEL
781 select SYS_SUPPORTS_64BIT_KERNEL
782 select SYS_SUPPORTS_BIG_ENDIAN
783 select SYS_SUPPORTS_HIGHMEM
784 select SYS_SUPPORTS_LITTLE_ENDIAN
785 help
786 The SNI RM200/300/400 are MIPS-based machines manufactured by
787 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
788 Technology and now in turn merged with Fujitsu. Say Y here to
789 support this machine type.
790
791 config MACH_TX39XX
792 bool "Toshiba TX39 series based machines"
793
794 config MACH_TX49XX
795 bool "Toshiba TX49 series based machines"
796
797 config MIKROTIK_RB532
798 bool "Mikrotik RB532 boards"
799 select CEVT_R4K
800 select CSRC_R4K
801 select DMA_NONCOHERENT
802 select HW_HAS_PCI
803 select IRQ_CPU
804 select SYS_HAS_CPU_MIPS32_R1
805 select SYS_SUPPORTS_32BIT_KERNEL
806 select SYS_SUPPORTS_LITTLE_ENDIAN
807 select SWAP_IO_SPACE
808 select BOOT_RAW
809 select ARCH_REQUIRE_GPIOLIB
810 select MIPS_L1_CACHE_SHIFT_4
811 help
812 Support the Mikrotik(tm) RouterBoard 532 series,
813 based on the IDT RC32434 SoC.
814
815 config CAVIUM_OCTEON_SOC
816 bool "Cavium Networks Octeon SoC based boards"
817 select CEVT_R4K
818 select ARCH_PHYS_ADDR_T_64BIT
819 select DMA_COHERENT
820 select SYS_SUPPORTS_64BIT_KERNEL
821 select SYS_SUPPORTS_BIG_ENDIAN
822 select EDAC_SUPPORT
823 select SYS_SUPPORTS_LITTLE_ENDIAN
824 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
825 select SYS_HAS_EARLY_PRINTK
826 select SYS_HAS_CPU_CAVIUM_OCTEON
827 select SWAP_IO_SPACE
828 select HW_HAS_PCI
829 select ZONE_DMA32
830 select HOLES_IN_ZONE
831 select ARCH_REQUIRE_GPIOLIB
832 select LIBFDT
833 select USE_OF
834 select ARCH_SPARSEMEM_ENABLE
835 select SYS_SUPPORTS_SMP
836 select NR_CPUS_DEFAULT_16
837 select BUILTIN_DTB
838 select MTD_COMPLEX_MAPPINGS
839 help
840 This option supports all of the Octeon reference boards from Cavium
841 Networks. It builds a kernel that dynamically determines the Octeon
842 CPU type and supports all known board reference implementations.
843 Some of the supported boards are:
844 EBT3000
845 EBH3000
846 EBH3100
847 Thunder
848 Kodama
849 Hikari
850 Say Y here for most Octeon reference boards.
851
852 config NLM_XLR_BOARD
853 bool "Netlogic XLR/XLS based systems"
854 select BOOT_ELF32
855 select NLM_COMMON
856 select SYS_HAS_CPU_XLR
857 select SYS_SUPPORTS_SMP
858 select HW_HAS_PCI
859 select SWAP_IO_SPACE
860 select SYS_SUPPORTS_32BIT_KERNEL
861 select SYS_SUPPORTS_64BIT_KERNEL
862 select ARCH_PHYS_ADDR_T_64BIT
863 select SYS_SUPPORTS_BIG_ENDIAN
864 select SYS_SUPPORTS_HIGHMEM
865 select DMA_COHERENT
866 select NR_CPUS_DEFAULT_32
867 select CEVT_R4K
868 select CSRC_R4K
869 select IRQ_CPU
870 select ZONE_DMA32 if 64BIT
871 select SYNC_R4K
872 select SYS_HAS_EARLY_PRINTK
873 select SYS_SUPPORTS_ZBOOT
874 select SYS_SUPPORTS_ZBOOT_UART16550
875 help
876 Support for systems based on Netlogic XLR and XLS processors.
877 Say Y here if you have a XLR or XLS based board.
878
879 config NLM_XLP_BOARD
880 bool "Netlogic XLP based systems"
881 select BOOT_ELF32
882 select NLM_COMMON
883 select SYS_HAS_CPU_XLP
884 select SYS_SUPPORTS_SMP
885 select HW_HAS_PCI
886 select SYS_SUPPORTS_32BIT_KERNEL
887 select SYS_SUPPORTS_64BIT_KERNEL
888 select ARCH_PHYS_ADDR_T_64BIT
889 select SYS_SUPPORTS_BIG_ENDIAN
890 select SYS_SUPPORTS_LITTLE_ENDIAN
891 select SYS_SUPPORTS_HIGHMEM
892 select DMA_COHERENT
893 select NR_CPUS_DEFAULT_32
894 select CEVT_R4K
895 select CSRC_R4K
896 select IRQ_CPU
897 select ZONE_DMA32 if 64BIT
898 select SYNC_R4K
899 select SYS_HAS_EARLY_PRINTK
900 select USE_OF
901 select SYS_SUPPORTS_ZBOOT
902 select SYS_SUPPORTS_ZBOOT_UART16550
903 help
904 This board is based on Netlogic XLP Processor.
905 Say Y here if you have a XLP based board.
906
907 config MIPS_PARAVIRT
908 bool "Para-Virtualized guest system"
909 select CEVT_R4K
910 select CSRC_R4K
911 select DMA_COHERENT
912 select SYS_SUPPORTS_64BIT_KERNEL
913 select SYS_SUPPORTS_32BIT_KERNEL
914 select SYS_SUPPORTS_BIG_ENDIAN
915 select SYS_SUPPORTS_SMP
916 select NR_CPUS_DEFAULT_4
917 select SYS_HAS_EARLY_PRINTK
918 select SYS_HAS_CPU_MIPS32_R2
919 select SYS_HAS_CPU_MIPS64_R2
920 select SYS_HAS_CPU_CAVIUM_OCTEON
921 select HW_HAS_PCI
922 select SWAP_IO_SPACE
923 help
924 This option supports guest running under ????
925
926 endchoice
927
928 source "arch/mips/alchemy/Kconfig"
929 source "arch/mips/ath25/Kconfig"
930 source "arch/mips/ath79/Kconfig"
931 source "arch/mips/bcm47xx/Kconfig"
932 source "arch/mips/bcm63xx/Kconfig"
933 source "arch/mips/bmips/Kconfig"
934 source "arch/mips/jazz/Kconfig"
935 source "arch/mips/jz4740/Kconfig"
936 source "arch/mips/lantiq/Kconfig"
937 source "arch/mips/lasat/Kconfig"
938 source "arch/mips/pmcs-msp71xx/Kconfig"
939 source "arch/mips/ralink/Kconfig"
940 source "arch/mips/sgi-ip27/Kconfig"
941 source "arch/mips/sibyte/Kconfig"
942 source "arch/mips/txx9/Kconfig"
943 source "arch/mips/vr41xx/Kconfig"
944 source "arch/mips/cavium-octeon/Kconfig"
945 source "arch/mips/loongson/Kconfig"
946 source "arch/mips/loongson1/Kconfig"
947 source "arch/mips/netlogic/Kconfig"
948 source "arch/mips/paravirt/Kconfig"
949
950 endmenu
951
952 config RWSEM_GENERIC_SPINLOCK
953 bool
954 default y
955
956 config RWSEM_XCHGADD_ALGORITHM
957 bool
958
959 config ARCH_HAS_ILOG2_U32
960 bool
961 default n
962
963 config ARCH_HAS_ILOG2_U64
964 bool
965 default n
966
967 config GENERIC_HWEIGHT
968 bool
969 default y
970
971 config GENERIC_CALIBRATE_DELAY
972 bool
973 default y
974
975 config SCHED_OMIT_FRAME_POINTER
976 bool
977 default y
978
979 #
980 # Select some configuration options automatically based on user selections.
981 #
982 config FW_ARC
983 bool
984
985 config ARCH_MAY_HAVE_PC_FDC
986 bool
987
988 config BOOT_RAW
989 bool
990
991 config CEVT_BCM1480
992 bool
993
994 config CEVT_DS1287
995 bool
996
997 config CEVT_GT641XX
998 bool
999
1000 config CEVT_R4K
1001 bool
1002
1003 config CEVT_SB1250
1004 bool
1005
1006 config CEVT_TXX9
1007 bool
1008
1009 config CSRC_BCM1480
1010 bool
1011
1012 config CSRC_IOASIC
1013 bool
1014
1015 config CSRC_R4K
1016 bool
1017
1018 config CSRC_SB1250
1019 bool
1020
1021 config GPIO_TXX9
1022 select ARCH_REQUIRE_GPIOLIB
1023 bool
1024
1025 config FW_CFE
1026 bool
1027
1028 config ARCH_DMA_ADDR_T_64BIT
1029 def_bool (HIGHMEM && ARCH_PHYS_ADDR_T_64BIT) || 64BIT
1030
1031 config DMA_MAYBE_COHERENT
1032 select DMA_NONCOHERENT
1033 bool
1034
1035 config DMA_COHERENT
1036 bool
1037
1038 config DMA_NONCOHERENT
1039 bool
1040 select NEED_DMA_MAP_STATE
1041
1042 config NEED_DMA_MAP_STATE
1043 bool
1044
1045 config SYS_HAS_EARLY_PRINTK
1046 bool
1047
1048 config HOTPLUG_CPU
1049 bool "Support for hot-pluggable CPUs"
1050 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
1051 help
1052 Say Y here to allow turning CPUs off and on. CPUs can be
1053 controlled through /sys/devices/system/cpu.
1054 (Note: power management support will enable this option
1055 automatically on SMP systems. )
1056 Say N if you want to disable CPU hotplug.
1057
1058 config SYS_SUPPORTS_HOTPLUG_CPU
1059 bool
1060
1061 config I8259
1062 bool
1063 select IRQ_DOMAIN
1064
1065 config MIPS_BONITO64
1066 bool
1067
1068 config MIPS_MSC
1069 bool
1070
1071 config MIPS_NILE4
1072 bool
1073
1074 config SYNC_R4K
1075 bool
1076
1077 config MIPS_MACHINE
1078 def_bool n
1079
1080 config NO_IOPORT_MAP
1081 def_bool n
1082
1083 config GENERIC_CSUM
1084 bool
1085
1086 config GENERIC_ISA_DMA
1087 bool
1088 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1089 select ISA_DMA_API
1090
1091 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1092 bool
1093 select GENERIC_ISA_DMA
1094
1095 config ISA_DMA_API
1096 bool
1097
1098 config HOLES_IN_ZONE
1099 bool
1100
1101 #
1102 # Endianness selection. Sufficiently obscure so many users don't know what to
1103 # answer,so we try hard to limit the available choices. Also the use of a
1104 # choice statement should be more obvious to the user.
1105 #
1106 choice
1107 prompt "Endianness selection"
1108 help
1109 Some MIPS machines can be configured for either little or big endian
1110 byte order. These modes require different kernels and a different
1111 Linux distribution. In general there is one preferred byteorder for a
1112 particular system but some systems are just as commonly used in the
1113 one or the other endianness.
1114
1115 config CPU_BIG_ENDIAN
1116 bool "Big endian"
1117 depends on SYS_SUPPORTS_BIG_ENDIAN
1118
1119 config CPU_LITTLE_ENDIAN
1120 bool "Little endian"
1121 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1122
1123 endchoice
1124
1125 config EXPORT_UASM
1126 bool
1127
1128 config SYS_SUPPORTS_APM_EMULATION
1129 bool
1130
1131 config SYS_SUPPORTS_BIG_ENDIAN
1132 bool
1133
1134 config SYS_SUPPORTS_LITTLE_ENDIAN
1135 bool
1136
1137 config SYS_SUPPORTS_HUGETLBFS
1138 bool
1139 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1140 default y
1141
1142 config MIPS_HUGE_TLB_SUPPORT
1143 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1144
1145 config IRQ_CPU
1146 bool
1147 select IRQ_DOMAIN
1148
1149 config IRQ_CPU_RM7K
1150 bool
1151
1152 config IRQ_MSP_SLP
1153 bool
1154
1155 config IRQ_MSP_CIC
1156 bool
1157
1158 config IRQ_TXX9
1159 bool
1160
1161 config IRQ_GT641XX
1162 bool
1163
1164 config PCI_GT64XXX_PCI0
1165 bool
1166
1167 config NO_EXCEPT_FILL
1168 bool
1169
1170 config SOC_EMMA2RH
1171 bool
1172 select CEVT_R4K
1173 select CSRC_R4K
1174 select DMA_NONCOHERENT
1175 select IRQ_CPU
1176 select SWAP_IO_SPACE
1177 select SYS_HAS_CPU_R5500
1178 select SYS_SUPPORTS_32BIT_KERNEL
1179 select SYS_SUPPORTS_64BIT_KERNEL
1180 select SYS_SUPPORTS_BIG_ENDIAN
1181
1182 config SOC_PNX833X
1183 bool
1184 select CEVT_R4K
1185 select CSRC_R4K
1186 select IRQ_CPU
1187 select DMA_NONCOHERENT
1188 select SYS_HAS_CPU_MIPS32_R2
1189 select SYS_SUPPORTS_32BIT_KERNEL
1190 select SYS_SUPPORTS_LITTLE_ENDIAN
1191 select SYS_SUPPORTS_BIG_ENDIAN
1192 select SYS_SUPPORTS_MIPS16
1193 select CPU_MIPSR2_IRQ_VI
1194
1195 config SOC_PNX8335
1196 bool
1197 select SOC_PNX833X
1198
1199 config MIPS_SPRAM
1200 bool
1201
1202 config SWAP_IO_SPACE
1203 bool
1204
1205 config SGI_HAS_INDYDOG
1206 bool
1207
1208 config SGI_HAS_HAL2
1209 bool
1210
1211 config SGI_HAS_SEEQ
1212 bool
1213
1214 config SGI_HAS_WD93
1215 bool
1216
1217 config SGI_HAS_ZILOG
1218 bool
1219
1220 config SGI_HAS_I8042
1221 bool
1222
1223 config DEFAULT_SGI_PARTITION
1224 bool
1225
1226 config FW_ARC32
1227 bool
1228
1229 config FW_SNIPROM
1230 bool
1231
1232 config BOOT_ELF32
1233 bool
1234
1235 config MIPS_L1_CACHE_SHIFT_4
1236 bool
1237
1238 config MIPS_L1_CACHE_SHIFT_5
1239 bool
1240
1241 config MIPS_L1_CACHE_SHIFT_6
1242 bool
1243
1244 config MIPS_L1_CACHE_SHIFT_7
1245 bool
1246
1247 config MIPS_L1_CACHE_SHIFT
1248 int
1249 default "7" if MIPS_L1_CACHE_SHIFT_7
1250 default "6" if MIPS_L1_CACHE_SHIFT_6
1251 default "5" if MIPS_L1_CACHE_SHIFT_5
1252 default "4" if MIPS_L1_CACHE_SHIFT_4
1253 default "5"
1254
1255 config HAVE_STD_PC_SERIAL_PORT
1256 bool
1257
1258 config ARC_CONSOLE
1259 bool "ARC console support"
1260 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1261
1262 config ARC_MEMORY
1263 bool
1264 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1265 default y
1266
1267 config ARC_PROMLIB
1268 bool
1269 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1270 default y
1271
1272 config FW_ARC64
1273 bool
1274
1275 config BOOT_ELF64
1276 bool
1277
1278 menu "CPU selection"
1279
1280 choice
1281 prompt "CPU type"
1282 default CPU_R4X00
1283
1284 config CPU_LOONGSON3
1285 bool "Loongson 3 CPU"
1286 depends on SYS_HAS_CPU_LOONGSON3
1287 select CPU_SUPPORTS_64BIT_KERNEL
1288 select CPU_SUPPORTS_HIGHMEM
1289 select CPU_SUPPORTS_HUGEPAGES
1290 select WEAK_ORDERING
1291 select WEAK_REORDERING_BEYOND_LLSC
1292 select ARCH_REQUIRE_GPIOLIB
1293 help
1294 The Loongson 3 processor implements the MIPS64R2 instruction
1295 set with many extensions.
1296
1297 config CPU_LOONGSON2E
1298 bool "Loongson 2E"
1299 depends on SYS_HAS_CPU_LOONGSON2E
1300 select CPU_LOONGSON2
1301 help
1302 The Loongson 2E processor implements the MIPS III instruction set
1303 with many extensions.
1304
1305 It has an internal FPGA northbridge, which is compatible to
1306 bonito64.
1307
1308 config CPU_LOONGSON2F
1309 bool "Loongson 2F"
1310 depends on SYS_HAS_CPU_LOONGSON2F
1311 select CPU_LOONGSON2
1312 select ARCH_REQUIRE_GPIOLIB
1313 help
1314 The Loongson 2F processor implements the MIPS III instruction set
1315 with many extensions.
1316
1317 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1318 have a similar programming interface with FPGA northbridge used in
1319 Loongson2E.
1320
1321 config CPU_LOONGSON1B
1322 bool "Loongson 1B"
1323 depends on SYS_HAS_CPU_LOONGSON1B
1324 select CPU_LOONGSON1
1325 help
1326 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1327 release 2 instruction set.
1328
1329 config CPU_MIPS32_R1
1330 bool "MIPS32 Release 1"
1331 depends on SYS_HAS_CPU_MIPS32_R1
1332 select CPU_HAS_PREFETCH
1333 select CPU_SUPPORTS_32BIT_KERNEL
1334 select CPU_SUPPORTS_HIGHMEM
1335 help
1336 Choose this option to build a kernel for release 1 or later of the
1337 MIPS32 architecture. Most modern embedded systems with a 32-bit
1338 MIPS processor are based on a MIPS32 processor. If you know the
1339 specific type of processor in your system, choose those that one
1340 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1341 Release 2 of the MIPS32 architecture is available since several
1342 years so chances are you even have a MIPS32 Release 2 processor
1343 in which case you should choose CPU_MIPS32_R2 instead for better
1344 performance.
1345
1346 config CPU_MIPS32_R2
1347 bool "MIPS32 Release 2"
1348 depends on SYS_HAS_CPU_MIPS32_R2
1349 select CPU_HAS_PREFETCH
1350 select CPU_SUPPORTS_32BIT_KERNEL
1351 select CPU_SUPPORTS_HIGHMEM
1352 select CPU_SUPPORTS_MSA
1353 select HAVE_KVM
1354 help
1355 Choose this option to build a kernel for release 2 or later of the
1356 MIPS32 architecture. Most modern embedded systems with a 32-bit
1357 MIPS processor are based on a MIPS32 processor. If you know the
1358 specific type of processor in your system, choose those that one
1359 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1360
1361 config CPU_MIPS32_R6
1362 bool "MIPS32 Release 6 (EXPERIMENTAL)"
1363 depends on SYS_HAS_CPU_MIPS32_R6
1364 select CPU_HAS_PREFETCH
1365 select CPU_SUPPORTS_32BIT_KERNEL
1366 select CPU_SUPPORTS_HIGHMEM
1367 select CPU_SUPPORTS_MSA
1368 select GENERIC_CSUM
1369 select HAVE_KVM
1370 select MIPS_O32_FP64_SUPPORT
1371 help
1372 Choose this option to build a kernel for release 6 or later of the
1373 MIPS32 architecture. New MIPS processors, starting with the Warrior
1374 family, are based on a MIPS32r6 processor. If you own an older
1375 processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1376
1377 config CPU_MIPS64_R1
1378 bool "MIPS64 Release 1"
1379 depends on SYS_HAS_CPU_MIPS64_R1
1380 select CPU_HAS_PREFETCH
1381 select CPU_SUPPORTS_32BIT_KERNEL
1382 select CPU_SUPPORTS_64BIT_KERNEL
1383 select CPU_SUPPORTS_HIGHMEM
1384 select CPU_SUPPORTS_HUGEPAGES
1385 help
1386 Choose this option to build a kernel for release 1 or later of the
1387 MIPS64 architecture. Many modern embedded systems with a 64-bit
1388 MIPS processor are based on a MIPS64 processor. If you know the
1389 specific type of processor in your system, choose those that one
1390 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1391 Release 2 of the MIPS64 architecture is available since several
1392 years so chances are you even have a MIPS64 Release 2 processor
1393 in which case you should choose CPU_MIPS64_R2 instead for better
1394 performance.
1395
1396 config CPU_MIPS64_R2
1397 bool "MIPS64 Release 2"
1398 depends on SYS_HAS_CPU_MIPS64_R2
1399 select CPU_HAS_PREFETCH
1400 select CPU_SUPPORTS_32BIT_KERNEL
1401 select CPU_SUPPORTS_64BIT_KERNEL
1402 select CPU_SUPPORTS_HIGHMEM
1403 select CPU_SUPPORTS_HUGEPAGES
1404 select CPU_SUPPORTS_MSA
1405 help
1406 Choose this option to build a kernel for release 2 or later of the
1407 MIPS64 architecture. Many modern embedded systems with a 64-bit
1408 MIPS processor are based on a MIPS64 processor. If you know the
1409 specific type of processor in your system, choose those that one
1410 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1411
1412 config CPU_MIPS64_R6
1413 bool "MIPS64 Release 6 (EXPERIMENTAL)"
1414 depends on SYS_HAS_CPU_MIPS64_R6
1415 select CPU_HAS_PREFETCH
1416 select CPU_SUPPORTS_32BIT_KERNEL
1417 select CPU_SUPPORTS_64BIT_KERNEL
1418 select CPU_SUPPORTS_HIGHMEM
1419 select CPU_SUPPORTS_MSA
1420 select GENERIC_CSUM
1421 help
1422 Choose this option to build a kernel for release 6 or later of the
1423 MIPS64 architecture. New MIPS processors, starting with the Warrior
1424 family, are based on a MIPS64r6 processor. If you own an older
1425 processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1426
1427 config CPU_R3000
1428 bool "R3000"
1429 depends on SYS_HAS_CPU_R3000
1430 select CPU_HAS_WB
1431 select CPU_SUPPORTS_32BIT_KERNEL
1432 select CPU_SUPPORTS_HIGHMEM
1433 help
1434 Please make sure to pick the right CPU type. Linux/MIPS is not
1435 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1436 *not* work on R4000 machines and vice versa. However, since most
1437 of the supported machines have an R4000 (or similar) CPU, R4x00
1438 might be a safe bet. If the resulting kernel does not work,
1439 try to recompile with R3000.
1440
1441 config CPU_TX39XX
1442 bool "R39XX"
1443 depends on SYS_HAS_CPU_TX39XX
1444 select CPU_SUPPORTS_32BIT_KERNEL
1445
1446 config CPU_VR41XX
1447 bool "R41xx"
1448 depends on SYS_HAS_CPU_VR41XX
1449 select CPU_SUPPORTS_32BIT_KERNEL
1450 select CPU_SUPPORTS_64BIT_KERNEL
1451 help
1452 The options selects support for the NEC VR4100 series of processors.
1453 Only choose this option if you have one of these processors as a
1454 kernel built with this option will not run on any other type of
1455 processor or vice versa.
1456
1457 config CPU_R4300
1458 bool "R4300"
1459 depends on SYS_HAS_CPU_R4300
1460 select CPU_SUPPORTS_32BIT_KERNEL
1461 select CPU_SUPPORTS_64BIT_KERNEL
1462 help
1463 MIPS Technologies R4300-series processors.
1464
1465 config CPU_R4X00
1466 bool "R4x00"
1467 depends on SYS_HAS_CPU_R4X00
1468 select CPU_SUPPORTS_32BIT_KERNEL
1469 select CPU_SUPPORTS_64BIT_KERNEL
1470 select CPU_SUPPORTS_HUGEPAGES
1471 help
1472 MIPS Technologies R4000-series processors other than 4300, including
1473 the R4000, R4400, R4600, and 4700.
1474
1475 config CPU_TX49XX
1476 bool "R49XX"
1477 depends on SYS_HAS_CPU_TX49XX
1478 select CPU_HAS_PREFETCH
1479 select CPU_SUPPORTS_32BIT_KERNEL
1480 select CPU_SUPPORTS_64BIT_KERNEL
1481 select CPU_SUPPORTS_HUGEPAGES
1482
1483 config CPU_R5000
1484 bool "R5000"
1485 depends on SYS_HAS_CPU_R5000
1486 select CPU_SUPPORTS_32BIT_KERNEL
1487 select CPU_SUPPORTS_64BIT_KERNEL
1488 select CPU_SUPPORTS_HUGEPAGES
1489 help
1490 MIPS Technologies R5000-series processors other than the Nevada.
1491
1492 config CPU_R5432
1493 bool "R5432"
1494 depends on SYS_HAS_CPU_R5432
1495 select CPU_SUPPORTS_32BIT_KERNEL
1496 select CPU_SUPPORTS_64BIT_KERNEL
1497 select CPU_SUPPORTS_HUGEPAGES
1498
1499 config CPU_R5500
1500 bool "R5500"
1501 depends on SYS_HAS_CPU_R5500
1502 select CPU_SUPPORTS_32BIT_KERNEL
1503 select CPU_SUPPORTS_64BIT_KERNEL
1504 select CPU_SUPPORTS_HUGEPAGES
1505 help
1506 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1507 instruction set.
1508
1509 config CPU_R6000
1510 bool "R6000"
1511 depends on SYS_HAS_CPU_R6000
1512 select CPU_SUPPORTS_32BIT_KERNEL
1513 help
1514 MIPS Technologies R6000 and R6000A series processors. Note these
1515 processors are extremely rare and the support for them is incomplete.
1516
1517 config CPU_NEVADA
1518 bool "RM52xx"
1519 depends on SYS_HAS_CPU_NEVADA
1520 select CPU_SUPPORTS_32BIT_KERNEL
1521 select CPU_SUPPORTS_64BIT_KERNEL
1522 select CPU_SUPPORTS_HUGEPAGES
1523 help
1524 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1525
1526 config CPU_R8000
1527 bool "R8000"
1528 depends on SYS_HAS_CPU_R8000
1529 select CPU_HAS_PREFETCH
1530 select CPU_SUPPORTS_64BIT_KERNEL
1531 help
1532 MIPS Technologies R8000 processors. Note these processors are
1533 uncommon and the support for them is incomplete.
1534
1535 config CPU_R10000
1536 bool "R10000"
1537 depends on SYS_HAS_CPU_R10000
1538 select CPU_HAS_PREFETCH
1539 select CPU_SUPPORTS_32BIT_KERNEL
1540 select CPU_SUPPORTS_64BIT_KERNEL
1541 select CPU_SUPPORTS_HIGHMEM
1542 select CPU_SUPPORTS_HUGEPAGES
1543 help
1544 MIPS Technologies R10000-series processors.
1545
1546 config CPU_RM7000
1547 bool "RM7000"
1548 depends on SYS_HAS_CPU_RM7000
1549 select CPU_HAS_PREFETCH
1550 select CPU_SUPPORTS_32BIT_KERNEL
1551 select CPU_SUPPORTS_64BIT_KERNEL
1552 select CPU_SUPPORTS_HIGHMEM
1553 select CPU_SUPPORTS_HUGEPAGES
1554
1555 config CPU_SB1
1556 bool "SB1"
1557 depends on SYS_HAS_CPU_SB1
1558 select CPU_SUPPORTS_32BIT_KERNEL
1559 select CPU_SUPPORTS_64BIT_KERNEL
1560 select CPU_SUPPORTS_HIGHMEM
1561 select CPU_SUPPORTS_HUGEPAGES
1562 select WEAK_ORDERING
1563
1564 config CPU_CAVIUM_OCTEON
1565 bool "Cavium Octeon processor"
1566 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1567 select CPU_HAS_PREFETCH
1568 select CPU_SUPPORTS_64BIT_KERNEL
1569 select WEAK_ORDERING
1570 select CPU_SUPPORTS_HIGHMEM
1571 select CPU_SUPPORTS_HUGEPAGES
1572 select USB_EHCI_BIG_ENDIAN_MMIO
1573 select MIPS_L1_CACHE_SHIFT_7
1574 help
1575 The Cavium Octeon processor is a highly integrated chip containing
1576 many ethernet hardware widgets for networking tasks. The processor
1577 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1578 Full details can be found at http://www.caviumnetworks.com.
1579
1580 config CPU_BMIPS
1581 bool "Broadcom BMIPS"
1582 depends on SYS_HAS_CPU_BMIPS
1583 select CPU_MIPS32
1584 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1585 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1586 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1587 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1588 select CPU_SUPPORTS_32BIT_KERNEL
1589 select DMA_NONCOHERENT
1590 select IRQ_CPU
1591 select SWAP_IO_SPACE
1592 select WEAK_ORDERING
1593 select CPU_SUPPORTS_HIGHMEM
1594 select CPU_HAS_PREFETCH
1595 help
1596 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1597
1598 config CPU_XLR
1599 bool "Netlogic XLR SoC"
1600 depends on SYS_HAS_CPU_XLR
1601 select CPU_SUPPORTS_32BIT_KERNEL
1602 select CPU_SUPPORTS_64BIT_KERNEL
1603 select CPU_SUPPORTS_HIGHMEM
1604 select CPU_SUPPORTS_HUGEPAGES
1605 select WEAK_ORDERING
1606 select WEAK_REORDERING_BEYOND_LLSC
1607 help
1608 Netlogic Microsystems XLR/XLS processors.
1609
1610 config CPU_XLP
1611 bool "Netlogic XLP SoC"
1612 depends on SYS_HAS_CPU_XLP
1613 select CPU_SUPPORTS_32BIT_KERNEL
1614 select CPU_SUPPORTS_64BIT_KERNEL
1615 select CPU_SUPPORTS_HIGHMEM
1616 select WEAK_ORDERING
1617 select WEAK_REORDERING_BEYOND_LLSC
1618 select CPU_HAS_PREFETCH
1619 select CPU_MIPSR2
1620 select CPU_SUPPORTS_HUGEPAGES
1621 help
1622 Netlogic Microsystems XLP processors.
1623 endchoice
1624
1625 config CPU_MIPS32_3_5_FEATURES
1626 bool "MIPS32 Release 3.5 Features"
1627 depends on SYS_HAS_CPU_MIPS32_R3_5
1628 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1629 help
1630 Choose this option to build a kernel for release 2 or later of the
1631 MIPS32 architecture including features from the 3.5 release such as
1632 support for Enhanced Virtual Addressing (EVA).
1633
1634 config CPU_MIPS32_3_5_EVA
1635 bool "Enhanced Virtual Addressing (EVA)"
1636 depends on CPU_MIPS32_3_5_FEATURES
1637 select EVA
1638 default y
1639 help
1640 Choose this option if you want to enable the Enhanced Virtual
1641 Addressing (EVA) on your MIPS32 core (such as proAptiv).
1642 One of its primary benefits is an increase in the maximum size
1643 of lowmem (up to 3GB). If unsure, say 'N' here.
1644
1645 config CPU_MIPS32_R5_FEATURES
1646 bool "MIPS32 Release 5 Features"
1647 depends on SYS_HAS_CPU_MIPS32_R5
1648 depends on CPU_MIPS32_R2
1649 help
1650 Choose this option to build a kernel for release 2 or later of the
1651 MIPS32 architecture including features from release 5 such as
1652 support for Extended Physical Addressing (XPA).
1653
1654 config CPU_MIPS32_R5_XPA
1655 bool "Extended Physical Addressing (XPA)"
1656 depends on CPU_MIPS32_R5_FEATURES
1657 depends on !EVA
1658 depends on !PAGE_SIZE_4KB
1659 depends on SYS_SUPPORTS_HIGHMEM
1660 select XPA
1661 select HIGHMEM
1662 select ARCH_PHYS_ADDR_T_64BIT
1663 default n
1664 help
1665 Choose this option if you want to enable the Extended Physical
1666 Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1667 benefit is to increase physical addressing equal to or greater
1668 than 40 bits. Note that this has the side effect of turning on
1669 64-bit addressing which in turn makes the PTEs 64-bit in size.
1670 If unsure, say 'N' here.
1671
1672 if CPU_LOONGSON2F
1673 config CPU_NOP_WORKAROUNDS
1674 bool
1675
1676 config CPU_JUMP_WORKAROUNDS
1677 bool
1678
1679 config CPU_LOONGSON2F_WORKAROUNDS
1680 bool "Loongson 2F Workarounds"
1681 default y
1682 select CPU_NOP_WORKAROUNDS
1683 select CPU_JUMP_WORKAROUNDS
1684 help
1685 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1686 require workarounds. Without workarounds the system may hang
1687 unexpectedly. For more information please refer to the gas
1688 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1689
1690 Loongson 2F03 and later have fixed these issues and no workarounds
1691 are needed. The workarounds have no significant side effect on them
1692 but may decrease the performance of the system so this option should
1693 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1694 systems.
1695
1696 If unsure, please say Y.
1697 endif # CPU_LOONGSON2F
1698
1699 config SYS_SUPPORTS_ZBOOT
1700 bool
1701 select HAVE_KERNEL_GZIP
1702 select HAVE_KERNEL_BZIP2
1703 select HAVE_KERNEL_LZ4
1704 select HAVE_KERNEL_LZMA
1705 select HAVE_KERNEL_LZO
1706 select HAVE_KERNEL_XZ
1707
1708 config SYS_SUPPORTS_ZBOOT_UART16550
1709 bool
1710 select SYS_SUPPORTS_ZBOOT
1711
1712 config CPU_LOONGSON2
1713 bool
1714 select CPU_SUPPORTS_32BIT_KERNEL
1715 select CPU_SUPPORTS_64BIT_KERNEL
1716 select CPU_SUPPORTS_HIGHMEM
1717 select CPU_SUPPORTS_HUGEPAGES
1718
1719 config CPU_LOONGSON1
1720 bool
1721 select CPU_MIPS32
1722 select CPU_MIPSR2
1723 select CPU_HAS_PREFETCH
1724 select CPU_SUPPORTS_32BIT_KERNEL
1725 select CPU_SUPPORTS_HIGHMEM
1726 select CPU_SUPPORTS_CPUFREQ
1727
1728 config CPU_BMIPS32_3300
1729 select SMP_UP if SMP
1730 bool
1731
1732 config CPU_BMIPS4350
1733 bool
1734 select SYS_SUPPORTS_SMP
1735 select SYS_SUPPORTS_HOTPLUG_CPU
1736
1737 config CPU_BMIPS4380
1738 bool
1739 select MIPS_L1_CACHE_SHIFT_6
1740 select SYS_SUPPORTS_SMP
1741 select SYS_SUPPORTS_HOTPLUG_CPU
1742
1743 config CPU_BMIPS5000
1744 bool
1745 select MIPS_CPU_SCACHE
1746 select MIPS_L1_CACHE_SHIFT_7
1747 select SYS_SUPPORTS_SMP
1748 select SYS_SUPPORTS_HOTPLUG_CPU
1749
1750 config SYS_HAS_CPU_LOONGSON3
1751 bool
1752 select CPU_SUPPORTS_CPUFREQ
1753
1754 config SYS_HAS_CPU_LOONGSON2E
1755 bool
1756
1757 config SYS_HAS_CPU_LOONGSON2F
1758 bool
1759 select CPU_SUPPORTS_CPUFREQ
1760 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1761 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1762
1763 config SYS_HAS_CPU_LOONGSON1B
1764 bool
1765
1766 config SYS_HAS_CPU_MIPS32_R1
1767 bool
1768
1769 config SYS_HAS_CPU_MIPS32_R2
1770 bool
1771
1772 config SYS_HAS_CPU_MIPS32_R3_5
1773 bool
1774
1775 config SYS_HAS_CPU_MIPS32_R5
1776 bool
1777
1778 config SYS_HAS_CPU_MIPS32_R6
1779 bool
1780
1781 config SYS_HAS_CPU_MIPS64_R1
1782 bool
1783
1784 config SYS_HAS_CPU_MIPS64_R2
1785 bool
1786
1787 config SYS_HAS_CPU_MIPS64_R6
1788 bool
1789
1790 config SYS_HAS_CPU_R3000
1791 bool
1792
1793 config SYS_HAS_CPU_TX39XX
1794 bool
1795
1796 config SYS_HAS_CPU_VR41XX
1797 bool
1798
1799 config SYS_HAS_CPU_R4300
1800 bool
1801
1802 config SYS_HAS_CPU_R4X00
1803 bool
1804
1805 config SYS_HAS_CPU_TX49XX
1806 bool
1807
1808 config SYS_HAS_CPU_R5000
1809 bool
1810
1811 config SYS_HAS_CPU_R5432
1812 bool
1813
1814 config SYS_HAS_CPU_R5500
1815 bool
1816
1817 config SYS_HAS_CPU_R6000
1818 bool
1819
1820 config SYS_HAS_CPU_NEVADA
1821 bool
1822
1823 config SYS_HAS_CPU_R8000
1824 bool
1825
1826 config SYS_HAS_CPU_R10000
1827 bool
1828
1829 config SYS_HAS_CPU_RM7000
1830 bool
1831
1832 config SYS_HAS_CPU_SB1
1833 bool
1834
1835 config SYS_HAS_CPU_CAVIUM_OCTEON
1836 bool
1837
1838 config SYS_HAS_CPU_BMIPS
1839 bool
1840
1841 config SYS_HAS_CPU_BMIPS32_3300
1842 bool
1843 select SYS_HAS_CPU_BMIPS
1844
1845 config SYS_HAS_CPU_BMIPS4350
1846 bool
1847 select SYS_HAS_CPU_BMIPS
1848
1849 config SYS_HAS_CPU_BMIPS4380
1850 bool
1851 select SYS_HAS_CPU_BMIPS
1852
1853 config SYS_HAS_CPU_BMIPS5000
1854 bool
1855 select SYS_HAS_CPU_BMIPS
1856
1857 config SYS_HAS_CPU_XLR
1858 bool
1859
1860 config SYS_HAS_CPU_XLP
1861 bool
1862
1863 config MIPS_MALTA_PM
1864 depends on MIPS_MALTA
1865 depends on PCI
1866 bool
1867 default y
1868
1869 #
1870 # CPU may reorder R->R, R->W, W->R, W->W
1871 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1872 #
1873 config WEAK_ORDERING
1874 bool
1875
1876 #
1877 # CPU may reorder reads and writes beyond LL/SC
1878 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1879 #
1880 config WEAK_REORDERING_BEYOND_LLSC
1881 bool
1882 endmenu
1883
1884 #
1885 # These two indicate any level of the MIPS32 and MIPS64 architecture
1886 #
1887 config CPU_MIPS32
1888 bool
1889 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
1890
1891 config CPU_MIPS64
1892 bool
1893 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
1894
1895 #
1896 # These two indicate the revision of the architecture, either Release 1 or Release 2
1897 #
1898 config CPU_MIPSR1
1899 bool
1900 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1901
1902 config CPU_MIPSR2
1903 bool
1904 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1905 select MIPS_SPRAM
1906
1907 config CPU_MIPSR6
1908 bool
1909 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
1910 select MIPS_SPRAM
1911
1912 config EVA
1913 bool
1914
1915 config XPA
1916 bool
1917
1918 config SYS_SUPPORTS_32BIT_KERNEL
1919 bool
1920 config SYS_SUPPORTS_64BIT_KERNEL
1921 bool
1922 config CPU_SUPPORTS_32BIT_KERNEL
1923 bool
1924 config CPU_SUPPORTS_64BIT_KERNEL
1925 bool
1926 config CPU_SUPPORTS_CPUFREQ
1927 bool
1928 config CPU_SUPPORTS_ADDRWINCFG
1929 bool
1930 config CPU_SUPPORTS_HUGEPAGES
1931 bool
1932 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1933 bool
1934 config MIPS_PGD_C0_CONTEXT
1935 bool
1936 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1937
1938 #
1939 # Set to y for ptrace access to watch registers.
1940 #
1941 config HARDWARE_WATCHPOINTS
1942 bool
1943 default y if CPU_MIPSR1 || CPU_MIPSR2
1944
1945 menu "Kernel type"
1946
1947 choice
1948 prompt "Kernel code model"
1949 help
1950 You should only select this option if you have a workload that
1951 actually benefits from 64-bit processing or if your machine has
1952 large memory. You will only be presented a single option in this
1953 menu if your system does not support both 32-bit and 64-bit kernels.
1954
1955 config 32BIT
1956 bool "32-bit kernel"
1957 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1958 select TRAD_SIGNALS
1959 help
1960 Select this option if you want to build a 32-bit kernel.
1961 config 64BIT
1962 bool "64-bit kernel"
1963 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1964 help
1965 Select this option if you want to build a 64-bit kernel.
1966
1967 endchoice
1968
1969 config KVM_GUEST
1970 bool "KVM Guest Kernel"
1971 depends on BROKEN_ON_SMP
1972 help
1973 Select this option if building a guest kernel for KVM (Trap & Emulate) mode
1974
1975 config KVM_GUEST_TIMER_FREQ
1976 int "Count/Compare Timer Frequency (MHz)"
1977 depends on KVM_GUEST
1978 default 100
1979 help
1980 Set this to non-zero if building a guest kernel for KVM to skip RTC
1981 emulation when determining guest CPU Frequency. Instead, the guest's
1982 timer frequency is specified directly.
1983
1984 choice
1985 prompt "Kernel page size"
1986 default PAGE_SIZE_4KB
1987
1988 config PAGE_SIZE_4KB
1989 bool "4kB"
1990 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
1991 help
1992 This option select the standard 4kB Linux page size. On some
1993 R3000-family processors this is the only available page size. Using
1994 4kB page size will minimize memory consumption and is therefore
1995 recommended for low memory systems.
1996
1997 config PAGE_SIZE_8KB
1998 bool "8kB"
1999 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
2000 help
2001 Using 8kB page size will result in higher performance kernel at
2002 the price of higher memory consumption. This option is available
2003 only on R8000 and cnMIPS processors. Note that you will need a
2004 suitable Linux distribution to support this.
2005
2006 config PAGE_SIZE_16KB
2007 bool "16kB"
2008 depends on !CPU_R3000 && !CPU_TX39XX
2009 help
2010 Using 16kB page size will result in higher performance kernel at
2011 the price of higher memory consumption. This option is available on
2012 all non-R3000 family processors. Note that you will need a suitable
2013 Linux distribution to support this.
2014
2015 config PAGE_SIZE_32KB
2016 bool "32kB"
2017 depends on CPU_CAVIUM_OCTEON
2018 help
2019 Using 32kB page size will result in higher performance kernel at
2020 the price of higher memory consumption. This option is available
2021 only on cnMIPS cores. Note that you will need a suitable Linux
2022 distribution to support this.
2023
2024 config PAGE_SIZE_64KB
2025 bool "64kB"
2026 depends on !CPU_R3000 && !CPU_TX39XX
2027 help
2028 Using 64kB page size will result in higher performance kernel at
2029 the price of higher memory consumption. This option is available on
2030 all non-R3000 family processor. Not that at the time of this
2031 writing this option is still high experimental.
2032
2033 endchoice
2034
2035 config FORCE_MAX_ZONEORDER
2036 int "Maximum zone order"
2037 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2038 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2039 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2040 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2041 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2042 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2043 range 11 64
2044 default "11"
2045 help
2046 The kernel memory allocator divides physically contiguous memory
2047 blocks into "zones", where each zone is a power of two number of
2048 pages. This option selects the largest power of two that the kernel
2049 keeps in the memory allocator. If you need to allocate very large
2050 blocks of physically contiguous memory, then you may need to
2051 increase this value.
2052
2053 This config option is actually maximum order plus one. For example,
2054 a value of 11 means that the largest free memory block is 2^10 pages.
2055
2056 The page size is not necessarily 4KB. Keep this in mind
2057 when choosing a value for this option.
2058
2059 config BOARD_SCACHE
2060 bool
2061
2062 config IP22_CPU_SCACHE
2063 bool
2064 select BOARD_SCACHE
2065
2066 #
2067 # Support for a MIPS32 / MIPS64 style S-caches
2068 #
2069 config MIPS_CPU_SCACHE
2070 bool
2071 select BOARD_SCACHE
2072
2073 config R5000_CPU_SCACHE
2074 bool
2075 select BOARD_SCACHE
2076
2077 config RM7000_CPU_SCACHE
2078 bool
2079 select BOARD_SCACHE
2080
2081 config SIBYTE_DMA_PAGEOPS
2082 bool "Use DMA to clear/copy pages"
2083 depends on CPU_SB1
2084 help
2085 Instead of using the CPU to zero and copy pages, use a Data Mover
2086 channel. These DMA channels are otherwise unused by the standard
2087 SiByte Linux port. Seems to give a small performance benefit.
2088
2089 config CPU_HAS_PREFETCH
2090 bool
2091
2092 config CPU_GENERIC_DUMP_TLB
2093 bool
2094 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
2095
2096 config CPU_R4K_FPU
2097 bool
2098 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2099
2100 config CPU_R4K_CACHE_TLB
2101 bool
2102 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2103
2104 config MIPS_MT_SMP
2105 bool "MIPS MT SMP support (1 TC on each available VPE)"
2106 depends on SYS_SUPPORTS_MULTITHREADING
2107 select CPU_MIPSR2_IRQ_VI
2108 select CPU_MIPSR2_IRQ_EI
2109 select SYNC_R4K
2110 select MIPS_GIC_IPI
2111 select MIPS_MT
2112 select SMP
2113 select SMP_UP
2114 select SYS_SUPPORTS_SMP
2115 select SYS_SUPPORTS_SCHED_SMT
2116 select MIPS_PERF_SHARED_TC_COUNTERS
2117 help
2118 This is a kernel model which is known as SMVP. This is supported
2119 on cores with the MT ASE and uses the available VPEs to implement
2120 virtual processors which supports SMP. This is equivalent to the
2121 Intel Hyperthreading feature. For further information go to
2122 <http://www.imgtec.com/mips/mips-multithreading.asp>.
2123
2124 config MIPS_MT
2125 bool
2126
2127 config SCHED_SMT
2128 bool "SMT (multithreading) scheduler support"
2129 depends on SYS_SUPPORTS_SCHED_SMT
2130 default n
2131 help
2132 SMT scheduler support improves the CPU scheduler's decision making
2133 when dealing with MIPS MT enabled cores at a cost of slightly
2134 increased overhead in some places. If unsure say N here.
2135
2136 config SYS_SUPPORTS_SCHED_SMT
2137 bool
2138
2139 config SYS_SUPPORTS_MULTITHREADING
2140 bool
2141
2142 config MIPS_MT_FPAFF
2143 bool "Dynamic FPU affinity for FP-intensive threads"
2144 default y
2145 depends on MIPS_MT_SMP
2146
2147 config MIPSR2_TO_R6_EMULATOR
2148 bool "MIPS R2-to-R6 emulator"
2149 depends on CPU_MIPSR6 && !SMP
2150 default y
2151 help
2152 Choose this option if you want to run non-R6 MIPS userland code.
2153 Even if you say 'Y' here, the emulator will still be disabled by
2154 default. You can enable it using the 'mipsr2emu' kernel option.
2155 The only reason this is a build-time option is to save ~14K from the
2156 final kernel image.
2157 comment "MIPS R2-to-R6 emulator is only available for UP kernels"
2158 depends on SMP && CPU_MIPSR6
2159
2160 config MIPS_VPE_LOADER
2161 bool "VPE loader support."
2162 depends on SYS_SUPPORTS_MULTITHREADING && MODULES
2163 select CPU_MIPSR2_IRQ_VI
2164 select CPU_MIPSR2_IRQ_EI
2165 select MIPS_MT
2166 help
2167 Includes a loader for loading an elf relocatable object
2168 onto another VPE and running it.
2169
2170 config MIPS_VPE_LOADER_CMP
2171 bool
2172 default "y"
2173 depends on MIPS_VPE_LOADER && MIPS_CMP
2174
2175 config MIPS_VPE_LOADER_MT
2176 bool
2177 default "y"
2178 depends on MIPS_VPE_LOADER && !MIPS_CMP
2179
2180 config MIPS_VPE_LOADER_TOM
2181 bool "Load VPE program into memory hidden from linux"
2182 depends on MIPS_VPE_LOADER
2183 default y
2184 help
2185 The loader can use memory that is present but has been hidden from
2186 Linux using the kernel command line option "mem=xxMB". It's up to
2187 you to ensure the amount you put in the option and the space your
2188 program requires is less or equal to the amount physically present.
2189
2190 config MIPS_VPE_APSP_API
2191 bool "Enable support for AP/SP API (RTLX)"
2192 depends on MIPS_VPE_LOADER
2193 help
2194
2195 config MIPS_VPE_APSP_API_CMP
2196 bool
2197 default "y"
2198 depends on MIPS_VPE_APSP_API && MIPS_CMP
2199
2200 config MIPS_VPE_APSP_API_MT
2201 bool
2202 default "y"
2203 depends on MIPS_VPE_APSP_API && !MIPS_CMP
2204
2205 config MIPS_CMP
2206 bool "MIPS CMP framework support (DEPRECATED)"
2207 depends on SYS_SUPPORTS_MIPS_CMP
2208 select MIPS_GIC_IPI
2209 select SMP
2210 select SYNC_R4K
2211 select SYS_SUPPORTS_SMP
2212 select WEAK_ORDERING
2213 default n
2214 help
2215 Select this if you are using a bootloader which implements the "CMP
2216 framework" protocol (ie. YAMON) and want your kernel to make use of
2217 its ability to start secondary CPUs.
2218
2219 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2220 instead of this.
2221
2222 config MIPS_CPS
2223 bool "MIPS Coherent Processing System support"
2224 depends on SYS_SUPPORTS_MIPS_CPS && !64BIT
2225 select MIPS_CM
2226 select MIPS_CPC
2227 select MIPS_CPS_PM if HOTPLUG_CPU
2228 select MIPS_GIC_IPI
2229 select SMP
2230 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2231 select SYS_SUPPORTS_HOTPLUG_CPU
2232 select SYS_SUPPORTS_SMP
2233 select WEAK_ORDERING
2234 help
2235 Select this if you wish to run an SMP kernel across multiple cores
2236 within a MIPS Coherent Processing System. When this option is
2237 enabled the kernel will probe for other cores and boot them with
2238 no external assistance. It is safe to enable this when hardware
2239 support is unavailable.
2240
2241 config MIPS_CPS_PM
2242 depends on MIPS_CPS
2243 select MIPS_CPC
2244 bool
2245
2246 config MIPS_GIC_IPI
2247 bool
2248
2249 config MIPS_CM
2250 bool
2251
2252 config MIPS_CPC
2253 bool
2254
2255 config SB1_PASS_1_WORKAROUNDS
2256 bool
2257 depends on CPU_SB1_PASS_1
2258 default y
2259
2260 config SB1_PASS_2_WORKAROUNDS
2261 bool
2262 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2263 default y
2264
2265 config SB1_PASS_2_1_WORKAROUNDS
2266 bool
2267 depends on CPU_SB1 && CPU_SB1_PASS_2
2268 default y
2269
2270
2271 config ARCH_PHYS_ADDR_T_64BIT
2272 bool
2273
2274 choice
2275 prompt "SmartMIPS or microMIPS ASE support"
2276
2277 config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2278 bool "None"
2279 help
2280 Select this if you want neither microMIPS nor SmartMIPS support
2281
2282 config CPU_HAS_SMARTMIPS
2283 depends on SYS_SUPPORTS_SMARTMIPS
2284 bool "SmartMIPS"
2285 help
2286 SmartMIPS is a extension of the MIPS32 architecture aimed at
2287 increased security at both hardware and software level for
2288 smartcards. Enabling this option will allow proper use of the
2289 SmartMIPS instructions by Linux applications. However a kernel with
2290 this option will not work on a MIPS core without SmartMIPS core. If
2291 you don't know you probably don't have SmartMIPS and should say N
2292 here.
2293
2294 config CPU_MICROMIPS
2295 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2296 bool "microMIPS"
2297 help
2298 When this option is enabled the kernel will be built using the
2299 microMIPS ISA
2300
2301 endchoice
2302
2303 config CPU_HAS_MSA
2304 bool "Support for the MIPS SIMD Architecture (EXPERIMENTAL)"
2305 depends on CPU_SUPPORTS_MSA
2306 depends on 64BIT || MIPS_O32_FP64_SUPPORT
2307 help
2308 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2309 and a set of SIMD instructions to operate on them. When this option
2310 is enabled the kernel will support allocating & switching MSA
2311 vector register contexts. If you know that your kernel will only be
2312 running on CPUs which do not support MSA or that your userland will
2313 not be making use of it then you may wish to say N here to reduce
2314 the size & complexity of your kernel.
2315
2316 If unsure, say Y.
2317
2318 config CPU_HAS_WB
2319 bool
2320
2321 config XKS01
2322 bool
2323
2324 #
2325 # Vectored interrupt mode is an R2 feature
2326 #
2327 config CPU_MIPSR2_IRQ_VI
2328 bool
2329
2330 #
2331 # Extended interrupt mode is an R2 feature
2332 #
2333 config CPU_MIPSR2_IRQ_EI
2334 bool
2335
2336 config CPU_HAS_SYNC
2337 bool
2338 depends on !CPU_R3000
2339 default y
2340
2341 #
2342 # CPU non-features
2343 #
2344 config CPU_DADDI_WORKAROUNDS
2345 bool
2346
2347 config CPU_R4000_WORKAROUNDS
2348 bool
2349 select CPU_R4400_WORKAROUNDS
2350
2351 config CPU_R4400_WORKAROUNDS
2352 bool
2353
2354 #
2355 # - Highmem only makes sense for the 32-bit kernel.
2356 # - The current highmem code will only work properly on physically indexed
2357 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2358 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2359 # moment we protect the user and offer the highmem option only on machines
2360 # where it's known to be safe. This will not offer highmem on a few systems
2361 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2362 # indexed CPUs but we're playing safe.
2363 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2364 # know they might have memory configurations that could make use of highmem
2365 # support.
2366 #
2367 config HIGHMEM
2368 bool "High Memory Support"
2369 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2370
2371 config CPU_SUPPORTS_HIGHMEM
2372 bool
2373
2374 config SYS_SUPPORTS_HIGHMEM
2375 bool
2376
2377 config SYS_SUPPORTS_SMARTMIPS
2378 bool
2379
2380 config SYS_SUPPORTS_MICROMIPS
2381 bool
2382
2383 config SYS_SUPPORTS_MIPS16
2384 bool
2385 help
2386 This option must be set if a kernel might be executed on a MIPS16-
2387 enabled CPU even if MIPS16 is not actually being used. In other
2388 words, it makes the kernel MIPS16-tolerant.
2389
2390 config CPU_SUPPORTS_MSA
2391 bool
2392
2393 config ARCH_FLATMEM_ENABLE
2394 def_bool y
2395 depends on !NUMA && !CPU_LOONGSON2
2396
2397 config ARCH_DISCONTIGMEM_ENABLE
2398 bool
2399 default y if SGI_IP27
2400 help
2401 Say Y to support efficient handling of discontiguous physical memory,
2402 for architectures which are either NUMA (Non-Uniform Memory Access)
2403 or have huge holes in the physical address space for other reasons.
2404 See <file:Documentation/vm/numa> for more.
2405
2406 config ARCH_SPARSEMEM_ENABLE
2407 bool
2408 select SPARSEMEM_STATIC
2409
2410 config NUMA
2411 bool "NUMA Support"
2412 depends on SYS_SUPPORTS_NUMA
2413 help
2414 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2415 Access). This option improves performance on systems with more
2416 than two nodes; on two node systems it is generally better to
2417 leave it disabled; on single node systems disable this option
2418 disabled.
2419
2420 config SYS_SUPPORTS_NUMA
2421 bool
2422
2423 config NODES_SHIFT
2424 int
2425 default "6"
2426 depends on NEED_MULTIPLE_NODES
2427
2428 config HW_PERF_EVENTS
2429 bool "Enable hardware performance counter support for perf events"
2430 depends on PERF_EVENTS && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2431 default y
2432 help
2433 Enable hardware performance counter support for perf events. If
2434 disabled, perf events will use software events only.
2435
2436 source "mm/Kconfig"
2437
2438 config SMP
2439 bool "Multi-Processing support"
2440 depends on SYS_SUPPORTS_SMP
2441 help
2442 This enables support for systems with more than one CPU. If you have
2443 a system with only one CPU, say N. If you have a system with more
2444 than one CPU, say Y.
2445
2446 If you say N here, the kernel will run on uni- and multiprocessor
2447 machines, but will use only one CPU of a multiprocessor machine. If
2448 you say Y here, the kernel will run on many, but not all,
2449 uniprocessor machines. On a uniprocessor machine, the kernel
2450 will run faster if you say N here.
2451
2452 People using multiprocessor machines who say Y here should also say
2453 Y to "Enhanced Real Time Clock Support", below.
2454
2455 See also the SMP-HOWTO available at
2456 <http://www.tldp.org/docs.html#howto>.
2457
2458 If you don't know what to do here, say N.
2459
2460 config SMP_UP
2461 bool
2462
2463 config SYS_SUPPORTS_MIPS_CMP
2464 bool
2465
2466 config SYS_SUPPORTS_MIPS_CPS
2467 bool
2468
2469 config SYS_SUPPORTS_SMP
2470 bool
2471
2472 config NR_CPUS_DEFAULT_4
2473 bool
2474
2475 config NR_CPUS_DEFAULT_8
2476 bool
2477
2478 config NR_CPUS_DEFAULT_16
2479 bool
2480
2481 config NR_CPUS_DEFAULT_32
2482 bool
2483
2484 config NR_CPUS_DEFAULT_64
2485 bool
2486
2487 config NR_CPUS
2488 int "Maximum number of CPUs (2-256)"
2489 range 2 256
2490 depends on SMP
2491 default "4" if NR_CPUS_DEFAULT_4
2492 default "8" if NR_CPUS_DEFAULT_8
2493 default "16" if NR_CPUS_DEFAULT_16
2494 default "32" if NR_CPUS_DEFAULT_32
2495 default "64" if NR_CPUS_DEFAULT_64
2496 help
2497 This allows you to specify the maximum number of CPUs which this
2498 kernel will support. The maximum supported value is 32 for 32-bit
2499 kernel and 64 for 64-bit kernels; the minimum value which makes
2500 sense is 1 for Qemu (useful only for kernel debugging purposes)
2501 and 2 for all others.
2502
2503 This is purely to save memory - each supported CPU adds
2504 approximately eight kilobytes to the kernel image. For best
2505 performance should round up your number of processors to the next
2506 power of two.
2507
2508 config MIPS_PERF_SHARED_TC_COUNTERS
2509 bool
2510
2511 #
2512 # Timer Interrupt Frequency Configuration
2513 #
2514
2515 choice
2516 prompt "Timer frequency"
2517 default HZ_250
2518 help
2519 Allows the configuration of the timer frequency.
2520
2521 config HZ_48
2522 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2523
2524 config HZ_100
2525 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2526
2527 config HZ_128
2528 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2529
2530 config HZ_250
2531 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2532
2533 config HZ_256
2534 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2535
2536 config HZ_1000
2537 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2538
2539 config HZ_1024
2540 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2541
2542 endchoice
2543
2544 config SYS_SUPPORTS_48HZ
2545 bool
2546
2547 config SYS_SUPPORTS_100HZ
2548 bool
2549
2550 config SYS_SUPPORTS_128HZ
2551 bool
2552
2553 config SYS_SUPPORTS_250HZ
2554 bool
2555
2556 config SYS_SUPPORTS_256HZ
2557 bool
2558
2559 config SYS_SUPPORTS_1000HZ
2560 bool
2561
2562 config SYS_SUPPORTS_1024HZ
2563 bool
2564
2565 config SYS_SUPPORTS_ARBIT_HZ
2566 bool
2567 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2568 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2569 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2570 !SYS_SUPPORTS_1024HZ
2571
2572 config HZ
2573 int
2574 default 48 if HZ_48
2575 default 100 if HZ_100
2576 default 128 if HZ_128
2577 default 250 if HZ_250
2578 default 256 if HZ_256
2579 default 1000 if HZ_1000
2580 default 1024 if HZ_1024
2581
2582 config SCHED_HRTICK
2583 def_bool HIGH_RES_TIMERS
2584
2585 source "kernel/Kconfig.preempt"
2586
2587 config KEXEC
2588 bool "Kexec system call"
2589 help
2590 kexec is a system call that implements the ability to shutdown your
2591 current kernel, and to start another kernel. It is like a reboot
2592 but it is independent of the system firmware. And like a reboot
2593 you can start any kernel with it, not just Linux.
2594
2595 The name comes from the similarity to the exec system call.
2596
2597 It is an ongoing process to be certain the hardware in a machine
2598 is properly shutdown, so do not be surprised if this code does not
2599 initially work for you. As of this writing the exact hardware
2600 interface is strongly in flux, so no good recommendation can be
2601 made.
2602
2603 config CRASH_DUMP
2604 bool "Kernel crash dumps"
2605 help
2606 Generate crash dump after being started by kexec.
2607 This should be normally only set in special crash dump kernels
2608 which are loaded in the main kernel with kexec-tools into
2609 a specially reserved region and then later executed after
2610 a crash by kdump/kexec. The crash dump kernel must be compiled
2611 to a memory address not used by the main kernel or firmware using
2612 PHYSICAL_START.
2613
2614 config PHYSICAL_START
2615 hex "Physical address where the kernel is loaded"
2616 default "0xffffffff84000000" if 64BIT
2617 default "0x84000000" if 32BIT
2618 depends on CRASH_DUMP
2619 help
2620 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2621 If you plan to use kernel for capturing the crash dump change
2622 this value to start of the reserved region (the "X" value as
2623 specified in the "crashkernel=YM@XM" command line boot parameter
2624 passed to the panic-ed kernel).
2625
2626 config SECCOMP
2627 bool "Enable seccomp to safely compute untrusted bytecode"
2628 depends on PROC_FS
2629 default y
2630 help
2631 This kernel feature is useful for number crunching applications
2632 that may need to compute untrusted bytecode during their
2633 execution. By using pipes or other transports made available to
2634 the process as file descriptors supporting the read/write
2635 syscalls, it's possible to isolate those applications in
2636 their own address space using seccomp. Once seccomp is
2637 enabled via /proc/<pid>/seccomp, it cannot be disabled
2638 and the task is only allowed to execute a few safe syscalls
2639 defined by each seccomp mode.
2640
2641 If unsure, say Y. Only embedded should say N here.
2642
2643 config MIPS_O32_FP64_SUPPORT
2644 bool "Support for O32 binaries using 64-bit FP (EXPERIMENTAL)"
2645 depends on 32BIT || MIPS32_O32
2646 help
2647 When this is enabled, the kernel will support use of 64-bit floating
2648 point registers with binaries using the O32 ABI along with the
2649 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2650 32-bit MIPS systems this support is at the cost of increasing the
2651 size and complexity of the compiled FPU emulator. Thus if you are
2652 running a MIPS32 system and know that none of your userland binaries
2653 will require 64-bit floating point, you may wish to reduce the size
2654 of your kernel & potentially improve FP emulation performance by
2655 saying N here.
2656
2657 Although binutils currently supports use of this flag the details
2658 concerning its effect upon the O32 ABI in userland are still being
2659 worked on. In order to avoid userland becoming dependant upon current
2660 behaviour before the details have been finalised, this option should
2661 be considered experimental and only enabled by those working upon
2662 said details.
2663
2664 If unsure, say N.
2665
2666 config USE_OF
2667 bool
2668 select OF
2669 select OF_EARLY_FLATTREE
2670 select IRQ_DOMAIN
2671
2672 config BUILTIN_DTB
2673 bool
2674
2675 endmenu
2676
2677 config LOCKDEP_SUPPORT
2678 bool
2679 default y
2680
2681 config STACKTRACE_SUPPORT
2682 bool
2683 default y
2684
2685 config PGTABLE_LEVELS
2686 int
2687 default 3 if 64BIT && !PAGE_SIZE_64KB
2688 default 2
2689
2690 source "init/Kconfig"
2691
2692 source "kernel/Kconfig.freezer"
2693
2694 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2695
2696 config HW_HAS_EISA
2697 bool
2698 config HW_HAS_PCI
2699 bool
2700
2701 config PCI
2702 bool "Support for PCI controller"
2703 depends on HW_HAS_PCI
2704 select PCI_DOMAINS
2705 select NO_GENERIC_PCI_IOPORT_MAP
2706 help
2707 Find out whether you have a PCI motherboard. PCI is the name of a
2708 bus system, i.e. the way the CPU talks to the other stuff inside
2709 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2710 say Y, otherwise N.
2711
2712 config HT_PCI
2713 bool "Support for HT-linked PCI"
2714 default y
2715 depends on CPU_LOONGSON3
2716 select PCI
2717 select PCI_DOMAINS
2718 help
2719 Loongson family machines use Hyper-Transport bus for inter-core
2720 connection and device connection. The PCI bus is a subordinate
2721 linked at HT. Choose Y for Loongson-3 based machines.
2722
2723 config PCI_DOMAINS
2724 bool
2725
2726 source "drivers/pci/Kconfig"
2727
2728 source "drivers/pci/pcie/Kconfig"
2729
2730 #
2731 # ISA support is now enabled via select. Too many systems still have the one
2732 # or other ISA chip on the board that users don't know about so don't expect
2733 # users to choose the right thing ...
2734 #
2735 config ISA
2736 bool
2737
2738 config EISA
2739 bool "EISA support"
2740 depends on HW_HAS_EISA
2741 select ISA
2742 select GENERIC_ISA_DMA
2743 ---help---
2744 The Extended Industry Standard Architecture (EISA) bus was
2745 developed as an open alternative to the IBM MicroChannel bus.
2746
2747 The EISA bus provided some of the features of the IBM MicroChannel
2748 bus while maintaining backward compatibility with cards made for
2749 the older ISA bus. The EISA bus saw limited use between 1988 and
2750 1995 when it was made obsolete by the PCI bus.
2751
2752 Say Y here if you are building a kernel for an EISA-based machine.
2753
2754 Otherwise, say N.
2755
2756 source "drivers/eisa/Kconfig"
2757
2758 config TC
2759 bool "TURBOchannel support"
2760 depends on MACH_DECSTATION
2761 help
2762 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2763 processors. TURBOchannel programming specifications are available
2764 at:
2765 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2766 and:
2767 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2768 Linux driver support status is documented at:
2769 <http://www.linux-mips.org/wiki/DECstation>
2770
2771 config MMU
2772 bool
2773 default y
2774
2775 config I8253
2776 bool
2777 select CLKSRC_I8253
2778 select CLKEVT_I8253
2779 select MIPS_EXTERNAL_TIMER
2780
2781 config ZONE_DMA
2782 bool
2783
2784 config ZONE_DMA32
2785 bool
2786
2787 source "drivers/pcmcia/Kconfig"
2788
2789 source "drivers/pci/hotplug/Kconfig"
2790
2791 config RAPIDIO
2792 tristate "RapidIO support"
2793 depends on PCI
2794 default n
2795 help
2796 If you say Y here, the kernel will include drivers and
2797 infrastructure code to support RapidIO interconnect devices.
2798
2799 source "drivers/rapidio/Kconfig"
2800
2801 endmenu
2802
2803 menu "Executable file formats"
2804
2805 source "fs/Kconfig.binfmt"
2806
2807 config TRAD_SIGNALS
2808 bool
2809
2810 config MIPS32_COMPAT
2811 bool
2812
2813 config COMPAT
2814 bool
2815
2816 config SYSVIPC_COMPAT
2817 bool
2818
2819 config MIPS32_O32
2820 bool "Kernel support for o32 binaries"
2821 depends on 64BIT
2822 select ARCH_WANT_OLD_COMPAT_IPC
2823 select COMPAT
2824 select MIPS32_COMPAT
2825 select SYSVIPC_COMPAT if SYSVIPC
2826 help
2827 Select this option if you want to run o32 binaries. These are pure
2828 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2829 existing binaries are in this format.
2830
2831 If unsure, say Y.
2832
2833 config MIPS32_N32
2834 bool "Kernel support for n32 binaries"
2835 depends on 64BIT
2836 select COMPAT
2837 select MIPS32_COMPAT
2838 select SYSVIPC_COMPAT if SYSVIPC
2839 help
2840 Select this option if you want to run n32 binaries. These are
2841 64-bit binaries using 32-bit quantities for addressing and certain
2842 data that would normally be 64-bit. They are used in special
2843 cases.
2844
2845 If unsure, say N.
2846
2847 config BINFMT_ELF32
2848 bool
2849 default y if MIPS32_O32 || MIPS32_N32
2850
2851 endmenu
2852
2853 menu "Power management options"
2854
2855 config ARCH_HIBERNATION_POSSIBLE
2856 def_bool y
2857 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2858
2859 config ARCH_SUSPEND_POSSIBLE
2860 def_bool y
2861 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2862
2863 source "kernel/power/Kconfig"
2864
2865 endmenu
2866
2867 config MIPS_EXTERNAL_TIMER
2868 bool
2869
2870 menu "CPU Power Management"
2871
2872 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
2873 source "drivers/cpufreq/Kconfig"
2874 endif
2875
2876 source "drivers/cpuidle/Kconfig"
2877
2878 endmenu
2879
2880 source "net/Kconfig"
2881
2882 source "drivers/Kconfig"
2883
2884 source "drivers/firmware/Kconfig"
2885
2886 source "fs/Kconfig"
2887
2888 source "arch/mips/Kconfig.debug"
2889
2890 source "security/Kconfig"
2891
2892 source "crypto/Kconfig"
2893
2894 source "lib/Kconfig"
2895
2896 source "arch/mips/kvm/Kconfig"