Merge tag 'mvebu-fixes-4.4-1' of git://git.infradead.org/linux-mvebu into fixes
[deliverable/linux.git] / arch / mips / Kconfig
1 config MIPS
2 bool
3 default y
4 select ARCH_SUPPORTS_UPROBES
5 select ARCH_MIGHT_HAVE_PC_PARPORT
6 select ARCH_MIGHT_HAVE_PC_SERIO
7 select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
8 select ARCH_USE_BUILTIN_BSWAP
9 select HAVE_CONTEXT_TRACKING
10 select HAVE_GENERIC_DMA_COHERENT
11 select HAVE_IDE
12 select HAVE_OPROFILE
13 select HAVE_PERF_EVENTS
14 select PERF_USE_VMALLOC
15 select HAVE_ARCH_KGDB
16 select HAVE_ARCH_SECCOMP_FILTER
17 select HAVE_ARCH_TRACEHOOK
18 select HAVE_BPF_JIT if !CPU_MICROMIPS
19 select HAVE_FUNCTION_TRACER
20 select HAVE_DYNAMIC_FTRACE
21 select HAVE_FTRACE_MCOUNT_RECORD
22 select HAVE_C_RECORDMCOUNT
23 select HAVE_FUNCTION_GRAPH_TRACER
24 select HAVE_KPROBES
25 select HAVE_KRETPROBES
26 select HAVE_SYSCALL_TRACEPOINTS
27 select HAVE_DEBUG_KMEMLEAK
28 select HAVE_SYSCALL_TRACEPOINTS
29 select ARCH_HAS_ELF_RANDOMIZE
30 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
31 select RTC_LIB if !MACH_LOONGSON64
32 select GENERIC_ATOMIC64 if !64BIT
33 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
34 select HAVE_DMA_ATTRS
35 select HAVE_DMA_CONTIGUOUS
36 select HAVE_DMA_API_DEBUG
37 select GENERIC_IRQ_PROBE
38 select GENERIC_IRQ_SHOW
39 select GENERIC_PCI_IOMAP
40 select HAVE_ARCH_JUMP_LABEL
41 select ARCH_WANT_IPC_PARSE_VERSION
42 select IRQ_FORCED_THREADING
43 select HAVE_MEMBLOCK
44 select HAVE_MEMBLOCK_NODE_MAP
45 select ARCH_DISCARD_MEMBLOCK
46 select GENERIC_SMP_IDLE_THREAD
47 select BUILDTIME_EXTABLE_SORT
48 select GENERIC_CLOCKEVENTS
49 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
50 select GENERIC_CMOS_UPDATE
51 select HAVE_MOD_ARCH_SPECIFIC
52 select VIRT_TO_BUS
53 select MODULES_USE_ELF_REL if MODULES
54 select MODULES_USE_ELF_RELA if MODULES && 64BIT
55 select CLONE_BACKWARDS
56 select HAVE_DEBUG_STACKOVERFLOW
57 select HAVE_CC_STACKPROTECTOR
58 select CPU_PM if CPU_IDLE
59 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
60 select ARCH_BINFMT_ELF_STATE
61 select SYSCTL_EXCEPTION_TRACE
62 select HAVE_VIRT_CPU_ACCOUNTING_GEN
63 select HAVE_IRQ_TIME_ACCOUNTING
64 select GENERIC_TIME_VSYSCALL
65 select ARCH_CLOCKSOURCE_DATA
66
67 menu "Machine selection"
68
69 choice
70 prompt "System type"
71 default SGI_IP22
72
73 config MIPS_ALCHEMY
74 bool "Alchemy processor based machines"
75 select ARCH_PHYS_ADDR_T_64BIT
76 select CEVT_R4K
77 select CSRC_R4K
78 select IRQ_MIPS_CPU
79 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is
80 select SYS_HAS_CPU_MIPS32_R1
81 select SYS_SUPPORTS_32BIT_KERNEL
82 select SYS_SUPPORTS_APM_EMULATION
83 select ARCH_REQUIRE_GPIOLIB
84 select SYS_SUPPORTS_ZBOOT
85 select COMMON_CLK
86
87 config AR7
88 bool "Texas Instruments AR7"
89 select BOOT_ELF32
90 select DMA_NONCOHERENT
91 select CEVT_R4K
92 select CSRC_R4K
93 select IRQ_MIPS_CPU
94 select NO_EXCEPT_FILL
95 select SWAP_IO_SPACE
96 select SYS_HAS_CPU_MIPS32_R1
97 select SYS_HAS_EARLY_PRINTK
98 select SYS_SUPPORTS_32BIT_KERNEL
99 select SYS_SUPPORTS_LITTLE_ENDIAN
100 select SYS_SUPPORTS_MIPS16
101 select SYS_SUPPORTS_ZBOOT_UART16550
102 select ARCH_REQUIRE_GPIOLIB
103 select VLYNQ
104 select HAVE_CLK
105 help
106 Support for the Texas Instruments AR7 System-on-a-Chip
107 family: TNETD7100, 7200 and 7300.
108
109 config ATH25
110 bool "Atheros AR231x/AR531x SoC support"
111 select CEVT_R4K
112 select CSRC_R4K
113 select DMA_NONCOHERENT
114 select IRQ_MIPS_CPU
115 select IRQ_DOMAIN
116 select SYS_HAS_CPU_MIPS32_R1
117 select SYS_SUPPORTS_BIG_ENDIAN
118 select SYS_SUPPORTS_32BIT_KERNEL
119 select SYS_HAS_EARLY_PRINTK
120 help
121 Support for Atheros AR231x and Atheros AR531x based boards
122
123 config ATH79
124 bool "Atheros AR71XX/AR724X/AR913X based boards"
125 select ARCH_HAS_RESET_CONTROLLER
126 select ARCH_REQUIRE_GPIOLIB
127 select BOOT_RAW
128 select CEVT_R4K
129 select CSRC_R4K
130 select DMA_NONCOHERENT
131 select HAVE_CLK
132 select COMMON_CLK
133 select CLKDEV_LOOKUP
134 select IRQ_MIPS_CPU
135 select MIPS_MACHINE
136 select SYS_HAS_CPU_MIPS32_R2
137 select SYS_HAS_EARLY_PRINTK
138 select SYS_SUPPORTS_32BIT_KERNEL
139 select SYS_SUPPORTS_BIG_ENDIAN
140 select SYS_SUPPORTS_MIPS16
141 select SYS_SUPPORTS_ZBOOT
142 select USE_OF
143 help
144 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
145
146 config BMIPS_GENERIC
147 bool "Broadcom Generic BMIPS kernel"
148 select BOOT_RAW
149 select NO_EXCEPT_FILL
150 select USE_OF
151 select CEVT_R4K
152 select CSRC_R4K
153 select SYNC_R4K
154 select COMMON_CLK
155 select BCM7038_L1_IRQ
156 select BCM7120_L2_IRQ
157 select BRCMSTB_L2_IRQ
158 select IRQ_MIPS_CPU
159 select DMA_NONCOHERENT
160 select SYS_SUPPORTS_32BIT_KERNEL
161 select SYS_SUPPORTS_LITTLE_ENDIAN
162 select SYS_SUPPORTS_BIG_ENDIAN
163 select SYS_SUPPORTS_HIGHMEM
164 select SYS_HAS_CPU_BMIPS32_3300
165 select SYS_HAS_CPU_BMIPS4350
166 select SYS_HAS_CPU_BMIPS4380
167 select SYS_HAS_CPU_BMIPS5000
168 select SWAP_IO_SPACE
169 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
170 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
171 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
172 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
173 help
174 Build a generic DT-based kernel image that boots on select
175 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
176 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
177 must be set appropriately for your board.
178
179 config BCM47XX
180 bool "Broadcom BCM47XX based boards"
181 select ARCH_WANT_OPTIONAL_GPIOLIB
182 select BOOT_RAW
183 select CEVT_R4K
184 select CSRC_R4K
185 select DMA_NONCOHERENT
186 select HW_HAS_PCI
187 select IRQ_MIPS_CPU
188 select SYS_HAS_CPU_MIPS32_R1
189 select NO_EXCEPT_FILL
190 select SYS_SUPPORTS_32BIT_KERNEL
191 select SYS_SUPPORTS_LITTLE_ENDIAN
192 select SYS_SUPPORTS_MIPS16
193 select SYS_HAS_EARLY_PRINTK
194 select USE_GENERIC_EARLY_PRINTK_8250
195 select GPIOLIB
196 select LEDS_GPIO_REGISTER
197 select BCM47XX_NVRAM
198 help
199 Support for BCM47XX based boards
200
201 config BCM63XX
202 bool "Broadcom BCM63XX based boards"
203 select BOOT_RAW
204 select CEVT_R4K
205 select CSRC_R4K
206 select SYNC_R4K
207 select DMA_NONCOHERENT
208 select IRQ_MIPS_CPU
209 select SYS_SUPPORTS_32BIT_KERNEL
210 select SYS_SUPPORTS_BIG_ENDIAN
211 select SYS_HAS_EARLY_PRINTK
212 select SWAP_IO_SPACE
213 select ARCH_REQUIRE_GPIOLIB
214 select HAVE_CLK
215 select MIPS_L1_CACHE_SHIFT_4
216 help
217 Support for BCM63XX based boards
218
219 config MIPS_COBALT
220 bool "Cobalt Server"
221 select CEVT_R4K
222 select CSRC_R4K
223 select CEVT_GT641XX
224 select DMA_NONCOHERENT
225 select HW_HAS_PCI
226 select I8253
227 select I8259
228 select IRQ_MIPS_CPU
229 select IRQ_GT641XX
230 select PCI_GT64XXX_PCI0
231 select PCI
232 select SYS_HAS_CPU_NEVADA
233 select SYS_HAS_EARLY_PRINTK
234 select SYS_SUPPORTS_32BIT_KERNEL
235 select SYS_SUPPORTS_64BIT_KERNEL
236 select SYS_SUPPORTS_LITTLE_ENDIAN
237 select USE_GENERIC_EARLY_PRINTK_8250
238
239 config MACH_DECSTATION
240 bool "DECstations"
241 select BOOT_ELF32
242 select CEVT_DS1287
243 select CEVT_R4K if CPU_R4X00
244 select CSRC_IOASIC
245 select CSRC_R4K if CPU_R4X00
246 select CPU_DADDI_WORKAROUNDS if 64BIT
247 select CPU_R4000_WORKAROUNDS if 64BIT
248 select CPU_R4400_WORKAROUNDS if 64BIT
249 select DMA_NONCOHERENT
250 select NO_IOPORT_MAP
251 select IRQ_MIPS_CPU
252 select SYS_HAS_CPU_R3000
253 select SYS_HAS_CPU_R4X00
254 select SYS_SUPPORTS_32BIT_KERNEL
255 select SYS_SUPPORTS_64BIT_KERNEL
256 select SYS_SUPPORTS_LITTLE_ENDIAN
257 select SYS_SUPPORTS_128HZ
258 select SYS_SUPPORTS_256HZ
259 select SYS_SUPPORTS_1024HZ
260 select MIPS_L1_CACHE_SHIFT_4
261 help
262 This enables support for DEC's MIPS based workstations. For details
263 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
264 DECstation porting pages on <http://decstation.unix-ag.org/>.
265
266 If you have one of the following DECstation Models you definitely
267 want to choose R4xx0 for the CPU Type:
268
269 DECstation 5000/50
270 DECstation 5000/150
271 DECstation 5000/260
272 DECsystem 5900/260
273
274 otherwise choose R3000.
275
276 config MACH_JAZZ
277 bool "Jazz family of machines"
278 select FW_ARC
279 select FW_ARC32
280 select ARCH_MAY_HAVE_PC_FDC
281 select CEVT_R4K
282 select CSRC_R4K
283 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
284 select GENERIC_ISA_DMA
285 select HAVE_PCSPKR_PLATFORM
286 select IRQ_MIPS_CPU
287 select I8253
288 select I8259
289 select ISA
290 select SYS_HAS_CPU_R4X00
291 select SYS_SUPPORTS_32BIT_KERNEL
292 select SYS_SUPPORTS_64BIT_KERNEL
293 select SYS_SUPPORTS_100HZ
294 help
295 This a family of machines based on the MIPS R4030 chipset which was
296 used by several vendors to build RISC/os and Windows NT workstations.
297 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
298 Olivetti M700-10 workstations.
299
300 config MACH_INGENIC
301 bool "Ingenic SoC based machines"
302 select SYS_SUPPORTS_32BIT_KERNEL
303 select SYS_SUPPORTS_LITTLE_ENDIAN
304 select SYS_SUPPORTS_ZBOOT_UART16550
305 select DMA_NONCOHERENT
306 select IRQ_MIPS_CPU
307 select ARCH_REQUIRE_GPIOLIB
308 select COMMON_CLK
309 select GENERIC_IRQ_CHIP
310 select BUILTIN_DTB
311 select USE_OF
312 select LIBFDT
313
314 config LANTIQ
315 bool "Lantiq based platforms"
316 select DMA_NONCOHERENT
317 select IRQ_MIPS_CPU
318 select CEVT_R4K
319 select CSRC_R4K
320 select SYS_HAS_CPU_MIPS32_R1
321 select SYS_HAS_CPU_MIPS32_R2
322 select SYS_SUPPORTS_BIG_ENDIAN
323 select SYS_SUPPORTS_32BIT_KERNEL
324 select SYS_SUPPORTS_MIPS16
325 select SYS_SUPPORTS_MULTITHREADING
326 select SYS_HAS_EARLY_PRINTK
327 select ARCH_REQUIRE_GPIOLIB
328 select SWAP_IO_SPACE
329 select BOOT_RAW
330 select HAVE_MACH_CLKDEV
331 select CLKDEV_LOOKUP
332 select USE_OF
333 select PINCTRL
334 select PINCTRL_LANTIQ
335 select ARCH_HAS_RESET_CONTROLLER
336 select RESET_CONTROLLER
337
338 config LASAT
339 bool "LASAT Networks platforms"
340 select CEVT_R4K
341 select CRC32
342 select CSRC_R4K
343 select DMA_NONCOHERENT
344 select SYS_HAS_EARLY_PRINTK
345 select HW_HAS_PCI
346 select IRQ_MIPS_CPU
347 select PCI_GT64XXX_PCI0
348 select MIPS_NILE4
349 select R5000_CPU_SCACHE
350 select SYS_HAS_CPU_R5000
351 select SYS_SUPPORTS_32BIT_KERNEL
352 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
353 select SYS_SUPPORTS_LITTLE_ENDIAN
354
355 config MACH_LOONGSON32
356 bool "Loongson-1 family of machines"
357 select SYS_SUPPORTS_ZBOOT
358 help
359 This enables support for the Loongson-1 family of machines.
360
361 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
362 the Institute of Computing Technology (ICT), Chinese Academy of
363 Sciences (CAS).
364
365 config MACH_LOONGSON64
366 bool "Loongson-2/3 family of machines"
367 select SYS_SUPPORTS_ZBOOT
368 help
369 This enables the support of Loongson-2/3 family of machines.
370
371 Loongson-2 is a family of single-core CPUs and Loongson-3 is a
372 family of multi-core CPUs. They are both 64-bit general-purpose
373 MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute
374 of Computing Technology (ICT), Chinese Academy of Sciences (CAS)
375 in the People's Republic of China. The chief architect is Professor
376 Weiwu Hu.
377
378 config MACH_PISTACHIO
379 bool "IMG Pistachio SoC based boards"
380 select ARCH_REQUIRE_GPIOLIB
381 select BOOT_ELF32
382 select BOOT_RAW
383 select CEVT_R4K
384 select CLKSRC_MIPS_GIC
385 select COMMON_CLK
386 select CSRC_R4K
387 select DMA_MAYBE_COHERENT
388 select IRQ_MIPS_CPU
389 select LIBFDT
390 select MFD_SYSCON
391 select MIPS_CPU_SCACHE
392 select MIPS_GIC
393 select PINCTRL
394 select REGULATOR
395 select SYS_HAS_CPU_MIPS32_R2
396 select SYS_SUPPORTS_32BIT_KERNEL
397 select SYS_SUPPORTS_LITTLE_ENDIAN
398 select SYS_SUPPORTS_MIPS_CPS
399 select SYS_SUPPORTS_MULTITHREADING
400 select SYS_SUPPORTS_ZBOOT
401 select SYS_HAS_EARLY_PRINTK
402 select USE_GENERIC_EARLY_PRINTK_8250
403 select USE_OF
404 help
405 This enables support for the IMG Pistachio SoC platform.
406
407 config MACH_XILFPGA
408 bool "MIPSfpga Xilinx based boards"
409 select ARCH_REQUIRE_GPIOLIB
410 select BOOT_ELF32
411 select BOOT_RAW
412 select BUILTIN_DTB
413 select CEVT_R4K
414 select COMMON_CLK
415 select CSRC_R4K
416 select IRQ_MIPS_CPU
417 select LIBFDT
418 select MIPS_CPU_SCACHE
419 select SYS_HAS_EARLY_PRINTK
420 select SYS_HAS_CPU_MIPS32_R2
421 select SYS_SUPPORTS_32BIT_KERNEL
422 select SYS_SUPPORTS_LITTLE_ENDIAN
423 select SYS_SUPPORTS_ZBOOT_UART16550
424 select USE_OF
425 select USE_GENERIC_EARLY_PRINTK_8250
426 help
427 This enables support for the IMG University Program MIPSfpga platform.
428
429 config MIPS_MALTA
430 bool "MIPS Malta board"
431 select ARCH_MAY_HAVE_PC_FDC
432 select BOOT_ELF32
433 select BOOT_RAW
434 select BUILTIN_DTB
435 select CEVT_R4K
436 select CSRC_R4K
437 select CLKSRC_MIPS_GIC
438 select COMMON_CLK
439 select DMA_MAYBE_COHERENT
440 select GENERIC_ISA_DMA
441 select HAVE_PCSPKR_PLATFORM
442 select IRQ_MIPS_CPU
443 select MIPS_GIC
444 select HW_HAS_PCI
445 select I8253
446 select I8259
447 select MIPS_BONITO64
448 select MIPS_CPU_SCACHE
449 select MIPS_L1_CACHE_SHIFT_6
450 select PCI_GT64XXX_PCI0
451 select MIPS_MSC
452 select SMP_UP if SMP
453 select SWAP_IO_SPACE
454 select SYS_HAS_CPU_MIPS32_R1
455 select SYS_HAS_CPU_MIPS32_R2
456 select SYS_HAS_CPU_MIPS32_R3_5
457 select SYS_HAS_CPU_MIPS32_R5
458 select SYS_HAS_CPU_MIPS32_R6
459 select SYS_HAS_CPU_MIPS64_R1
460 select SYS_HAS_CPU_MIPS64_R2
461 select SYS_HAS_CPU_MIPS64_R6
462 select SYS_HAS_CPU_NEVADA
463 select SYS_HAS_CPU_RM7000
464 select SYS_SUPPORTS_32BIT_KERNEL
465 select SYS_SUPPORTS_64BIT_KERNEL
466 select SYS_SUPPORTS_BIG_ENDIAN
467 select SYS_SUPPORTS_HIGHMEM
468 select SYS_SUPPORTS_LITTLE_ENDIAN
469 select SYS_SUPPORTS_MICROMIPS
470 select SYS_SUPPORTS_MIPS_CMP
471 select SYS_SUPPORTS_MIPS_CPS
472 select SYS_SUPPORTS_MIPS16
473 select SYS_SUPPORTS_MULTITHREADING
474 select SYS_SUPPORTS_SMARTMIPS
475 select SYS_SUPPORTS_ZBOOT
476 select USE_OF
477 select ZONE_DMA32 if 64BIT
478 select BUILTIN_DTB
479 select LIBFDT
480 help
481 This enables support for the MIPS Technologies Malta evaluation
482 board.
483
484 config MIPS_SEAD3
485 bool "MIPS SEAD3 board"
486 select BOOT_ELF32
487 select BOOT_RAW
488 select BUILTIN_DTB
489 select CEVT_R4K
490 select CSRC_R4K
491 select CLKSRC_MIPS_GIC
492 select COMMON_CLK
493 select CPU_MIPSR2_IRQ_VI
494 select CPU_MIPSR2_IRQ_EI
495 select DMA_NONCOHERENT
496 select IRQ_MIPS_CPU
497 select MIPS_GIC
498 select LIBFDT
499 select MIPS_MSC
500 select SYS_HAS_CPU_MIPS32_R1
501 select SYS_HAS_CPU_MIPS32_R2
502 select SYS_HAS_CPU_MIPS64_R1
503 select SYS_HAS_EARLY_PRINTK
504 select SYS_SUPPORTS_32BIT_KERNEL
505 select SYS_SUPPORTS_64BIT_KERNEL
506 select SYS_SUPPORTS_BIG_ENDIAN
507 select SYS_SUPPORTS_LITTLE_ENDIAN
508 select SYS_SUPPORTS_SMARTMIPS
509 select SYS_SUPPORTS_MICROMIPS
510 select SYS_SUPPORTS_MIPS16
511 select USB_EHCI_BIG_ENDIAN_DESC
512 select USB_EHCI_BIG_ENDIAN_MMIO
513 select USE_OF
514 help
515 This enables support for the MIPS Technologies SEAD3 evaluation
516 board.
517
518 config NEC_MARKEINS
519 bool "NEC EMMA2RH Mark-eins board"
520 select SOC_EMMA2RH
521 select HW_HAS_PCI
522 help
523 This enables support for the NEC Electronics Mark-eins boards.
524
525 config MACH_VR41XX
526 bool "NEC VR4100 series based machines"
527 select CEVT_R4K
528 select CSRC_R4K
529 select SYS_HAS_CPU_VR41XX
530 select SYS_SUPPORTS_MIPS16
531 select ARCH_REQUIRE_GPIOLIB
532
533 config NXP_STB220
534 bool "NXP STB220 board"
535 select SOC_PNX833X
536 help
537 Support for NXP Semiconductors STB220 Development Board.
538
539 config NXP_STB225
540 bool "NXP 225 board"
541 select SOC_PNX833X
542 select SOC_PNX8335
543 help
544 Support for NXP Semiconductors STB225 Development Board.
545
546 config PMC_MSP
547 bool "PMC-Sierra MSP chipsets"
548 select CEVT_R4K
549 select CSRC_R4K
550 select DMA_NONCOHERENT
551 select SWAP_IO_SPACE
552 select NO_EXCEPT_FILL
553 select BOOT_RAW
554 select SYS_HAS_CPU_MIPS32_R1
555 select SYS_HAS_CPU_MIPS32_R2
556 select SYS_SUPPORTS_32BIT_KERNEL
557 select SYS_SUPPORTS_BIG_ENDIAN
558 select SYS_SUPPORTS_MIPS16
559 select IRQ_MIPS_CPU
560 select SERIAL_8250
561 select SERIAL_8250_CONSOLE
562 select USB_EHCI_BIG_ENDIAN_MMIO
563 select USB_EHCI_BIG_ENDIAN_DESC
564 help
565 This adds support for the PMC-Sierra family of Multi-Service
566 Processor System-On-A-Chips. These parts include a number
567 of integrated peripherals, interfaces and DSPs in addition to
568 a variety of MIPS cores.
569
570 config RALINK
571 bool "Ralink based machines"
572 select CEVT_R4K
573 select CSRC_R4K
574 select BOOT_RAW
575 select DMA_NONCOHERENT
576 select IRQ_MIPS_CPU
577 select USE_OF
578 select SYS_HAS_CPU_MIPS32_R1
579 select SYS_HAS_CPU_MIPS32_R2
580 select SYS_SUPPORTS_32BIT_KERNEL
581 select SYS_SUPPORTS_LITTLE_ENDIAN
582 select SYS_SUPPORTS_MIPS16
583 select SYS_HAS_EARLY_PRINTK
584 select HAVE_MACH_CLKDEV
585 select CLKDEV_LOOKUP
586 select ARCH_HAS_RESET_CONTROLLER
587 select RESET_CONTROLLER
588
589 config SGI_IP22
590 bool "SGI IP22 (Indy/Indigo2)"
591 select FW_ARC
592 select FW_ARC32
593 select BOOT_ELF32
594 select CEVT_R4K
595 select CSRC_R4K
596 select DEFAULT_SGI_PARTITION
597 select DMA_NONCOHERENT
598 select HW_HAS_EISA
599 select I8253
600 select I8259
601 select IP22_CPU_SCACHE
602 select IRQ_MIPS_CPU
603 select GENERIC_ISA_DMA_SUPPORT_BROKEN
604 select SGI_HAS_I8042
605 select SGI_HAS_INDYDOG
606 select SGI_HAS_HAL2
607 select SGI_HAS_SEEQ
608 select SGI_HAS_WD93
609 select SGI_HAS_ZILOG
610 select SWAP_IO_SPACE
611 select SYS_HAS_CPU_R4X00
612 select SYS_HAS_CPU_R5000
613 #
614 # Disable EARLY_PRINTK for now since it leads to overwritten prom
615 # memory during early boot on some machines.
616 #
617 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
618 # for a more details discussion
619 #
620 # select SYS_HAS_EARLY_PRINTK
621 select SYS_SUPPORTS_32BIT_KERNEL
622 select SYS_SUPPORTS_64BIT_KERNEL
623 select SYS_SUPPORTS_BIG_ENDIAN
624 select MIPS_L1_CACHE_SHIFT_7
625 help
626 This are the SGI Indy, Challenge S and Indigo2, as well as certain
627 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
628 that runs on these, say Y here.
629
630 config SGI_IP27
631 bool "SGI IP27 (Origin200/2000)"
632 select FW_ARC
633 select FW_ARC64
634 select BOOT_ELF64
635 select DEFAULT_SGI_PARTITION
636 select DMA_COHERENT
637 select SYS_HAS_EARLY_PRINTK
638 select HW_HAS_PCI
639 select NR_CPUS_DEFAULT_64
640 select SYS_HAS_CPU_R10000
641 select SYS_SUPPORTS_64BIT_KERNEL
642 select SYS_SUPPORTS_BIG_ENDIAN
643 select SYS_SUPPORTS_NUMA
644 select SYS_SUPPORTS_SMP
645 select MIPS_L1_CACHE_SHIFT_7
646 help
647 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
648 workstations. To compile a Linux kernel that runs on these, say Y
649 here.
650
651 config SGI_IP28
652 bool "SGI IP28 (Indigo2 R10k)"
653 select FW_ARC
654 select FW_ARC64
655 select BOOT_ELF64
656 select CEVT_R4K
657 select CSRC_R4K
658 select DEFAULT_SGI_PARTITION
659 select DMA_NONCOHERENT
660 select GENERIC_ISA_DMA_SUPPORT_BROKEN
661 select IRQ_MIPS_CPU
662 select HW_HAS_EISA
663 select I8253
664 select I8259
665 select SGI_HAS_I8042
666 select SGI_HAS_INDYDOG
667 select SGI_HAS_HAL2
668 select SGI_HAS_SEEQ
669 select SGI_HAS_WD93
670 select SGI_HAS_ZILOG
671 select SWAP_IO_SPACE
672 select SYS_HAS_CPU_R10000
673 #
674 # Disable EARLY_PRINTK for now since it leads to overwritten prom
675 # memory during early boot on some machines.
676 #
677 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
678 # for a more details discussion
679 #
680 # select SYS_HAS_EARLY_PRINTK
681 select SYS_SUPPORTS_64BIT_KERNEL
682 select SYS_SUPPORTS_BIG_ENDIAN
683 select MIPS_L1_CACHE_SHIFT_7
684 help
685 This is the SGI Indigo2 with R10000 processor. To compile a Linux
686 kernel that runs on these, say Y here.
687
688 config SGI_IP32
689 bool "SGI IP32 (O2)"
690 select FW_ARC
691 select FW_ARC32
692 select BOOT_ELF32
693 select CEVT_R4K
694 select CSRC_R4K
695 select DMA_NONCOHERENT
696 select HW_HAS_PCI
697 select IRQ_MIPS_CPU
698 select R5000_CPU_SCACHE
699 select RM7000_CPU_SCACHE
700 select SYS_HAS_CPU_R5000
701 select SYS_HAS_CPU_R10000 if BROKEN
702 select SYS_HAS_CPU_RM7000
703 select SYS_HAS_CPU_NEVADA
704 select SYS_SUPPORTS_64BIT_KERNEL
705 select SYS_SUPPORTS_BIG_ENDIAN
706 help
707 If you want this kernel to run on SGI O2 workstation, say Y here.
708
709 config SIBYTE_CRHINE
710 bool "Sibyte BCM91120C-CRhine"
711 select BOOT_ELF32
712 select DMA_COHERENT
713 select SIBYTE_BCM1120
714 select SWAP_IO_SPACE
715 select SYS_HAS_CPU_SB1
716 select SYS_SUPPORTS_BIG_ENDIAN
717 select SYS_SUPPORTS_LITTLE_ENDIAN
718
719 config SIBYTE_CARMEL
720 bool "Sibyte BCM91120x-Carmel"
721 select BOOT_ELF32
722 select DMA_COHERENT
723 select SIBYTE_BCM1120
724 select SWAP_IO_SPACE
725 select SYS_HAS_CPU_SB1
726 select SYS_SUPPORTS_BIG_ENDIAN
727 select SYS_SUPPORTS_LITTLE_ENDIAN
728
729 config SIBYTE_CRHONE
730 bool "Sibyte BCM91125C-CRhone"
731 select BOOT_ELF32
732 select DMA_COHERENT
733 select SIBYTE_BCM1125
734 select SWAP_IO_SPACE
735 select SYS_HAS_CPU_SB1
736 select SYS_SUPPORTS_BIG_ENDIAN
737 select SYS_SUPPORTS_HIGHMEM
738 select SYS_SUPPORTS_LITTLE_ENDIAN
739
740 config SIBYTE_RHONE
741 bool "Sibyte BCM91125E-Rhone"
742 select BOOT_ELF32
743 select DMA_COHERENT
744 select SIBYTE_BCM1125H
745 select SWAP_IO_SPACE
746 select SYS_HAS_CPU_SB1
747 select SYS_SUPPORTS_BIG_ENDIAN
748 select SYS_SUPPORTS_LITTLE_ENDIAN
749
750 config SIBYTE_SWARM
751 bool "Sibyte BCM91250A-SWARM"
752 select BOOT_ELF32
753 select DMA_COHERENT
754 select HAVE_PATA_PLATFORM
755 select SIBYTE_SB1250
756 select SWAP_IO_SPACE
757 select SYS_HAS_CPU_SB1
758 select SYS_SUPPORTS_BIG_ENDIAN
759 select SYS_SUPPORTS_HIGHMEM
760 select SYS_SUPPORTS_LITTLE_ENDIAN
761 select ZONE_DMA32 if 64BIT
762
763 config SIBYTE_LITTLESUR
764 bool "Sibyte BCM91250C2-LittleSur"
765 select BOOT_ELF32
766 select DMA_COHERENT
767 select HAVE_PATA_PLATFORM
768 select SIBYTE_SB1250
769 select SWAP_IO_SPACE
770 select SYS_HAS_CPU_SB1
771 select SYS_SUPPORTS_BIG_ENDIAN
772 select SYS_SUPPORTS_HIGHMEM
773 select SYS_SUPPORTS_LITTLE_ENDIAN
774
775 config SIBYTE_SENTOSA
776 bool "Sibyte BCM91250E-Sentosa"
777 select BOOT_ELF32
778 select DMA_COHERENT
779 select SIBYTE_SB1250
780 select SWAP_IO_SPACE
781 select SYS_HAS_CPU_SB1
782 select SYS_SUPPORTS_BIG_ENDIAN
783 select SYS_SUPPORTS_LITTLE_ENDIAN
784
785 config SIBYTE_BIGSUR
786 bool "Sibyte BCM91480B-BigSur"
787 select BOOT_ELF32
788 select DMA_COHERENT
789 select NR_CPUS_DEFAULT_4
790 select SIBYTE_BCM1x80
791 select SWAP_IO_SPACE
792 select SYS_HAS_CPU_SB1
793 select SYS_SUPPORTS_BIG_ENDIAN
794 select SYS_SUPPORTS_HIGHMEM
795 select SYS_SUPPORTS_LITTLE_ENDIAN
796 select ZONE_DMA32 if 64BIT
797
798 config SNI_RM
799 bool "SNI RM200/300/400"
800 select FW_ARC if CPU_LITTLE_ENDIAN
801 select FW_ARC32 if CPU_LITTLE_ENDIAN
802 select FW_SNIPROM if CPU_BIG_ENDIAN
803 select ARCH_MAY_HAVE_PC_FDC
804 select BOOT_ELF32
805 select CEVT_R4K
806 select CSRC_R4K
807 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
808 select DMA_NONCOHERENT
809 select GENERIC_ISA_DMA
810 select HAVE_PCSPKR_PLATFORM
811 select HW_HAS_EISA
812 select HW_HAS_PCI
813 select IRQ_MIPS_CPU
814 select I8253
815 select I8259
816 select ISA
817 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
818 select SYS_HAS_CPU_R4X00
819 select SYS_HAS_CPU_R5000
820 select SYS_HAS_CPU_R10000
821 select R5000_CPU_SCACHE
822 select SYS_HAS_EARLY_PRINTK
823 select SYS_SUPPORTS_32BIT_KERNEL
824 select SYS_SUPPORTS_64BIT_KERNEL
825 select SYS_SUPPORTS_BIG_ENDIAN
826 select SYS_SUPPORTS_HIGHMEM
827 select SYS_SUPPORTS_LITTLE_ENDIAN
828 help
829 The SNI RM200/300/400 are MIPS-based machines manufactured by
830 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
831 Technology and now in turn merged with Fujitsu. Say Y here to
832 support this machine type.
833
834 config MACH_TX39XX
835 bool "Toshiba TX39 series based machines"
836
837 config MACH_TX49XX
838 bool "Toshiba TX49 series based machines"
839
840 config MIKROTIK_RB532
841 bool "Mikrotik RB532 boards"
842 select CEVT_R4K
843 select CSRC_R4K
844 select DMA_NONCOHERENT
845 select HW_HAS_PCI
846 select IRQ_MIPS_CPU
847 select SYS_HAS_CPU_MIPS32_R1
848 select SYS_SUPPORTS_32BIT_KERNEL
849 select SYS_SUPPORTS_LITTLE_ENDIAN
850 select SWAP_IO_SPACE
851 select BOOT_RAW
852 select ARCH_REQUIRE_GPIOLIB
853 select MIPS_L1_CACHE_SHIFT_4
854 help
855 Support the Mikrotik(tm) RouterBoard 532 series,
856 based on the IDT RC32434 SoC.
857
858 config CAVIUM_OCTEON_SOC
859 bool "Cavium Networks Octeon SoC based boards"
860 select CEVT_R4K
861 select ARCH_PHYS_ADDR_T_64BIT
862 select DMA_COHERENT
863 select SYS_SUPPORTS_64BIT_KERNEL
864 select SYS_SUPPORTS_BIG_ENDIAN
865 select EDAC_SUPPORT
866 select EDAC_ATOMIC_SCRUB
867 select SYS_SUPPORTS_LITTLE_ENDIAN
868 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
869 select SYS_HAS_EARLY_PRINTK
870 select SYS_HAS_CPU_CAVIUM_OCTEON
871 select SWAP_IO_SPACE
872 select HW_HAS_PCI
873 select ZONE_DMA32
874 select HOLES_IN_ZONE
875 select ARCH_REQUIRE_GPIOLIB
876 select LIBFDT
877 select USE_OF
878 select ARCH_SPARSEMEM_ENABLE
879 select SYS_SUPPORTS_SMP
880 select NR_CPUS_DEFAULT_16
881 select BUILTIN_DTB
882 select MTD_COMPLEX_MAPPINGS
883 help
884 This option supports all of the Octeon reference boards from Cavium
885 Networks. It builds a kernel that dynamically determines the Octeon
886 CPU type and supports all known board reference implementations.
887 Some of the supported boards are:
888 EBT3000
889 EBH3000
890 EBH3100
891 Thunder
892 Kodama
893 Hikari
894 Say Y here for most Octeon reference boards.
895
896 config NLM_XLR_BOARD
897 bool "Netlogic XLR/XLS based systems"
898 select BOOT_ELF32
899 select NLM_COMMON
900 select SYS_HAS_CPU_XLR
901 select SYS_SUPPORTS_SMP
902 select HW_HAS_PCI
903 select SWAP_IO_SPACE
904 select SYS_SUPPORTS_32BIT_KERNEL
905 select SYS_SUPPORTS_64BIT_KERNEL
906 select ARCH_PHYS_ADDR_T_64BIT
907 select SYS_SUPPORTS_BIG_ENDIAN
908 select SYS_SUPPORTS_HIGHMEM
909 select DMA_COHERENT
910 select NR_CPUS_DEFAULT_32
911 select CEVT_R4K
912 select CSRC_R4K
913 select IRQ_MIPS_CPU
914 select ZONE_DMA32 if 64BIT
915 select SYNC_R4K
916 select SYS_HAS_EARLY_PRINTK
917 select SYS_SUPPORTS_ZBOOT
918 select SYS_SUPPORTS_ZBOOT_UART16550
919 help
920 Support for systems based on Netlogic XLR and XLS processors.
921 Say Y here if you have a XLR or XLS based board.
922
923 config NLM_XLP_BOARD
924 bool "Netlogic XLP based systems"
925 select BOOT_ELF32
926 select NLM_COMMON
927 select SYS_HAS_CPU_XLP
928 select SYS_SUPPORTS_SMP
929 select HW_HAS_PCI
930 select SYS_SUPPORTS_32BIT_KERNEL
931 select SYS_SUPPORTS_64BIT_KERNEL
932 select ARCH_PHYS_ADDR_T_64BIT
933 select ARCH_REQUIRE_GPIOLIB
934 select SYS_SUPPORTS_BIG_ENDIAN
935 select SYS_SUPPORTS_LITTLE_ENDIAN
936 select SYS_SUPPORTS_HIGHMEM
937 select DMA_COHERENT
938 select NR_CPUS_DEFAULT_32
939 select CEVT_R4K
940 select CSRC_R4K
941 select IRQ_MIPS_CPU
942 select ZONE_DMA32 if 64BIT
943 select SYNC_R4K
944 select SYS_HAS_EARLY_PRINTK
945 select USE_OF
946 select SYS_SUPPORTS_ZBOOT
947 select SYS_SUPPORTS_ZBOOT_UART16550
948 help
949 This board is based on Netlogic XLP Processor.
950 Say Y here if you have a XLP based board.
951
952 config MIPS_PARAVIRT
953 bool "Para-Virtualized guest system"
954 select CEVT_R4K
955 select CSRC_R4K
956 select DMA_COHERENT
957 select SYS_SUPPORTS_64BIT_KERNEL
958 select SYS_SUPPORTS_32BIT_KERNEL
959 select SYS_SUPPORTS_BIG_ENDIAN
960 select SYS_SUPPORTS_SMP
961 select NR_CPUS_DEFAULT_4
962 select SYS_HAS_EARLY_PRINTK
963 select SYS_HAS_CPU_MIPS32_R2
964 select SYS_HAS_CPU_MIPS64_R2
965 select SYS_HAS_CPU_CAVIUM_OCTEON
966 select HW_HAS_PCI
967 select SWAP_IO_SPACE
968 help
969 This option supports guest running under ????
970
971 endchoice
972
973 source "arch/mips/alchemy/Kconfig"
974 source "arch/mips/ath25/Kconfig"
975 source "arch/mips/ath79/Kconfig"
976 source "arch/mips/bcm47xx/Kconfig"
977 source "arch/mips/bcm63xx/Kconfig"
978 source "arch/mips/bmips/Kconfig"
979 source "arch/mips/jazz/Kconfig"
980 source "arch/mips/jz4740/Kconfig"
981 source "arch/mips/lantiq/Kconfig"
982 source "arch/mips/lasat/Kconfig"
983 source "arch/mips/pistachio/Kconfig"
984 source "arch/mips/pmcs-msp71xx/Kconfig"
985 source "arch/mips/ralink/Kconfig"
986 source "arch/mips/sgi-ip27/Kconfig"
987 source "arch/mips/sibyte/Kconfig"
988 source "arch/mips/txx9/Kconfig"
989 source "arch/mips/vr41xx/Kconfig"
990 source "arch/mips/cavium-octeon/Kconfig"
991 source "arch/mips/loongson32/Kconfig"
992 source "arch/mips/loongson64/Kconfig"
993 source "arch/mips/netlogic/Kconfig"
994 source "arch/mips/paravirt/Kconfig"
995 source "arch/mips/xilfpga/Kconfig"
996
997 endmenu
998
999 config RWSEM_GENERIC_SPINLOCK
1000 bool
1001 default y
1002
1003 config RWSEM_XCHGADD_ALGORITHM
1004 bool
1005
1006 config ARCH_HAS_ILOG2_U32
1007 bool
1008 default n
1009
1010 config ARCH_HAS_ILOG2_U64
1011 bool
1012 default n
1013
1014 config GENERIC_HWEIGHT
1015 bool
1016 default y
1017
1018 config GENERIC_CALIBRATE_DELAY
1019 bool
1020 default y
1021
1022 config SCHED_OMIT_FRAME_POINTER
1023 bool
1024 default y
1025
1026 #
1027 # Select some configuration options automatically based on user selections.
1028 #
1029 config FW_ARC
1030 bool
1031
1032 config ARCH_MAY_HAVE_PC_FDC
1033 bool
1034
1035 config BOOT_RAW
1036 bool
1037
1038 config CEVT_BCM1480
1039 bool
1040
1041 config CEVT_DS1287
1042 bool
1043
1044 config CEVT_GT641XX
1045 bool
1046
1047 config CEVT_R4K
1048 bool
1049
1050 config CEVT_SB1250
1051 bool
1052
1053 config CEVT_TXX9
1054 bool
1055
1056 config CSRC_BCM1480
1057 bool
1058
1059 config CSRC_IOASIC
1060 bool
1061
1062 config CSRC_R4K
1063 bool
1064
1065 config CSRC_SB1250
1066 bool
1067
1068 config MIPS_CLOCK_VSYSCALL
1069 def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1070
1071 config GPIO_TXX9
1072 select ARCH_REQUIRE_GPIOLIB
1073 bool
1074
1075 config FW_CFE
1076 bool
1077
1078 config ARCH_DMA_ADDR_T_64BIT
1079 def_bool (HIGHMEM && ARCH_PHYS_ADDR_T_64BIT) || 64BIT
1080
1081 config ARCH_SUPPORTS_UPROBES
1082 bool
1083
1084 config DMA_MAYBE_COHERENT
1085 select DMA_NONCOHERENT
1086 bool
1087
1088 config DMA_COHERENT
1089 bool
1090
1091 config DMA_NONCOHERENT
1092 bool
1093 select NEED_DMA_MAP_STATE
1094
1095 config NEED_DMA_MAP_STATE
1096 bool
1097
1098 config SYS_HAS_EARLY_PRINTK
1099 bool
1100
1101 config HOTPLUG_CPU
1102 bool "Support for hot-pluggable CPUs"
1103 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
1104 help
1105 Say Y here to allow turning CPUs off and on. CPUs can be
1106 controlled through /sys/devices/system/cpu.
1107 (Note: power management support will enable this option
1108 automatically on SMP systems. )
1109 Say N if you want to disable CPU hotplug.
1110
1111 config SYS_SUPPORTS_HOTPLUG_CPU
1112 bool
1113
1114 config MIPS_BONITO64
1115 bool
1116
1117 config MIPS_MSC
1118 bool
1119
1120 config MIPS_NILE4
1121 bool
1122
1123 config SYNC_R4K
1124 bool
1125
1126 config MIPS_MACHINE
1127 def_bool n
1128
1129 config NO_IOPORT_MAP
1130 def_bool n
1131
1132 config GENERIC_CSUM
1133 bool
1134
1135 config GENERIC_ISA_DMA
1136 bool
1137 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1138 select ISA_DMA_API
1139
1140 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1141 bool
1142 select GENERIC_ISA_DMA
1143
1144 config ISA_DMA_API
1145 bool
1146
1147 config HOLES_IN_ZONE
1148 bool
1149
1150 #
1151 # Endianness selection. Sufficiently obscure so many users don't know what to
1152 # answer,so we try hard to limit the available choices. Also the use of a
1153 # choice statement should be more obvious to the user.
1154 #
1155 choice
1156 prompt "Endianness selection"
1157 help
1158 Some MIPS machines can be configured for either little or big endian
1159 byte order. These modes require different kernels and a different
1160 Linux distribution. In general there is one preferred byteorder for a
1161 particular system but some systems are just as commonly used in the
1162 one or the other endianness.
1163
1164 config CPU_BIG_ENDIAN
1165 bool "Big endian"
1166 depends on SYS_SUPPORTS_BIG_ENDIAN
1167
1168 config CPU_LITTLE_ENDIAN
1169 bool "Little endian"
1170 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1171
1172 endchoice
1173
1174 config EXPORT_UASM
1175 bool
1176
1177 config SYS_SUPPORTS_APM_EMULATION
1178 bool
1179
1180 config SYS_SUPPORTS_BIG_ENDIAN
1181 bool
1182
1183 config SYS_SUPPORTS_LITTLE_ENDIAN
1184 bool
1185
1186 config SYS_SUPPORTS_HUGETLBFS
1187 bool
1188 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1189 default y
1190
1191 config MIPS_HUGE_TLB_SUPPORT
1192 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1193
1194 config IRQ_CPU_RM7K
1195 bool
1196
1197 config IRQ_MSP_SLP
1198 bool
1199
1200 config IRQ_MSP_CIC
1201 bool
1202
1203 config IRQ_TXX9
1204 bool
1205
1206 config IRQ_GT641XX
1207 bool
1208
1209 config PCI_GT64XXX_PCI0
1210 bool
1211
1212 config NO_EXCEPT_FILL
1213 bool
1214
1215 config SOC_EMMA2RH
1216 bool
1217 select CEVT_R4K
1218 select CSRC_R4K
1219 select DMA_NONCOHERENT
1220 select IRQ_MIPS_CPU
1221 select SWAP_IO_SPACE
1222 select SYS_HAS_CPU_R5500
1223 select SYS_SUPPORTS_32BIT_KERNEL
1224 select SYS_SUPPORTS_64BIT_KERNEL
1225 select SYS_SUPPORTS_BIG_ENDIAN
1226
1227 config SOC_PNX833X
1228 bool
1229 select CEVT_R4K
1230 select CSRC_R4K
1231 select IRQ_MIPS_CPU
1232 select DMA_NONCOHERENT
1233 select SYS_HAS_CPU_MIPS32_R2
1234 select SYS_SUPPORTS_32BIT_KERNEL
1235 select SYS_SUPPORTS_LITTLE_ENDIAN
1236 select SYS_SUPPORTS_BIG_ENDIAN
1237 select SYS_SUPPORTS_MIPS16
1238 select CPU_MIPSR2_IRQ_VI
1239
1240 config SOC_PNX8335
1241 bool
1242 select SOC_PNX833X
1243
1244 config MIPS_SPRAM
1245 bool
1246
1247 config SWAP_IO_SPACE
1248 bool
1249
1250 config SGI_HAS_INDYDOG
1251 bool
1252
1253 config SGI_HAS_HAL2
1254 bool
1255
1256 config SGI_HAS_SEEQ
1257 bool
1258
1259 config SGI_HAS_WD93
1260 bool
1261
1262 config SGI_HAS_ZILOG
1263 bool
1264
1265 config SGI_HAS_I8042
1266 bool
1267
1268 config DEFAULT_SGI_PARTITION
1269 bool
1270
1271 config FW_ARC32
1272 bool
1273
1274 config FW_SNIPROM
1275 bool
1276
1277 config BOOT_ELF32
1278 bool
1279
1280 config MIPS_L1_CACHE_SHIFT_4
1281 bool
1282
1283 config MIPS_L1_CACHE_SHIFT_5
1284 bool
1285
1286 config MIPS_L1_CACHE_SHIFT_6
1287 bool
1288
1289 config MIPS_L1_CACHE_SHIFT_7
1290 bool
1291
1292 config MIPS_L1_CACHE_SHIFT
1293 int
1294 default "7" if MIPS_L1_CACHE_SHIFT_7
1295 default "6" if MIPS_L1_CACHE_SHIFT_6
1296 default "5" if MIPS_L1_CACHE_SHIFT_5
1297 default "4" if MIPS_L1_CACHE_SHIFT_4
1298 default "5"
1299
1300 config HAVE_STD_PC_SERIAL_PORT
1301 bool
1302
1303 config ARC_CONSOLE
1304 bool "ARC console support"
1305 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1306
1307 config ARC_MEMORY
1308 bool
1309 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1310 default y
1311
1312 config ARC_PROMLIB
1313 bool
1314 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1315 default y
1316
1317 config FW_ARC64
1318 bool
1319
1320 config BOOT_ELF64
1321 bool
1322
1323 menu "CPU selection"
1324
1325 choice
1326 prompt "CPU type"
1327 default CPU_R4X00
1328
1329 config CPU_LOONGSON3
1330 bool "Loongson 3 CPU"
1331 depends on SYS_HAS_CPU_LOONGSON3
1332 select CPU_SUPPORTS_64BIT_KERNEL
1333 select CPU_SUPPORTS_HIGHMEM
1334 select CPU_SUPPORTS_HUGEPAGES
1335 select WEAK_ORDERING
1336 select WEAK_REORDERING_BEYOND_LLSC
1337 select ARCH_REQUIRE_GPIOLIB
1338 help
1339 The Loongson 3 processor implements the MIPS64R2 instruction
1340 set with many extensions.
1341
1342 config CPU_LOONGSON2E
1343 bool "Loongson 2E"
1344 depends on SYS_HAS_CPU_LOONGSON2E
1345 select CPU_LOONGSON2
1346 help
1347 The Loongson 2E processor implements the MIPS III instruction set
1348 with many extensions.
1349
1350 It has an internal FPGA northbridge, which is compatible to
1351 bonito64.
1352
1353 config CPU_LOONGSON2F
1354 bool "Loongson 2F"
1355 depends on SYS_HAS_CPU_LOONGSON2F
1356 select CPU_LOONGSON2
1357 select ARCH_REQUIRE_GPIOLIB
1358 help
1359 The Loongson 2F processor implements the MIPS III instruction set
1360 with many extensions.
1361
1362 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1363 have a similar programming interface with FPGA northbridge used in
1364 Loongson2E.
1365
1366 config CPU_LOONGSON1B
1367 bool "Loongson 1B"
1368 depends on SYS_HAS_CPU_LOONGSON1B
1369 select CPU_LOONGSON1
1370 help
1371 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1372 release 2 instruction set.
1373
1374 config CPU_MIPS32_R1
1375 bool "MIPS32 Release 1"
1376 depends on SYS_HAS_CPU_MIPS32_R1
1377 select CPU_HAS_PREFETCH
1378 select CPU_SUPPORTS_32BIT_KERNEL
1379 select CPU_SUPPORTS_HIGHMEM
1380 help
1381 Choose this option to build a kernel for release 1 or later of the
1382 MIPS32 architecture. Most modern embedded systems with a 32-bit
1383 MIPS processor are based on a MIPS32 processor. If you know the
1384 specific type of processor in your system, choose those that one
1385 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1386 Release 2 of the MIPS32 architecture is available since several
1387 years so chances are you even have a MIPS32 Release 2 processor
1388 in which case you should choose CPU_MIPS32_R2 instead for better
1389 performance.
1390
1391 config CPU_MIPS32_R2
1392 bool "MIPS32 Release 2"
1393 depends on SYS_HAS_CPU_MIPS32_R2
1394 select CPU_HAS_PREFETCH
1395 select CPU_SUPPORTS_32BIT_KERNEL
1396 select CPU_SUPPORTS_HIGHMEM
1397 select CPU_SUPPORTS_MSA
1398 select HAVE_KVM
1399 help
1400 Choose this option to build a kernel for release 2 or later of the
1401 MIPS32 architecture. Most modern embedded systems with a 32-bit
1402 MIPS processor are based on a MIPS32 processor. If you know the
1403 specific type of processor in your system, choose those that one
1404 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1405
1406 config CPU_MIPS32_R6
1407 bool "MIPS32 Release 6"
1408 depends on SYS_HAS_CPU_MIPS32_R6
1409 select CPU_HAS_PREFETCH
1410 select CPU_SUPPORTS_32BIT_KERNEL
1411 select CPU_SUPPORTS_HIGHMEM
1412 select CPU_SUPPORTS_MSA
1413 select GENERIC_CSUM
1414 select HAVE_KVM
1415 select MIPS_O32_FP64_SUPPORT
1416 help
1417 Choose this option to build a kernel for release 6 or later of the
1418 MIPS32 architecture. New MIPS processors, starting with the Warrior
1419 family, are based on a MIPS32r6 processor. If you own an older
1420 processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1421
1422 config CPU_MIPS64_R1
1423 bool "MIPS64 Release 1"
1424 depends on SYS_HAS_CPU_MIPS64_R1
1425 select CPU_HAS_PREFETCH
1426 select CPU_SUPPORTS_32BIT_KERNEL
1427 select CPU_SUPPORTS_64BIT_KERNEL
1428 select CPU_SUPPORTS_HIGHMEM
1429 select CPU_SUPPORTS_HUGEPAGES
1430 help
1431 Choose this option to build a kernel for release 1 or later of the
1432 MIPS64 architecture. Many modern embedded systems with a 64-bit
1433 MIPS processor are based on a MIPS64 processor. If you know the
1434 specific type of processor in your system, choose those that one
1435 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1436 Release 2 of the MIPS64 architecture is available since several
1437 years so chances are you even have a MIPS64 Release 2 processor
1438 in which case you should choose CPU_MIPS64_R2 instead for better
1439 performance.
1440
1441 config CPU_MIPS64_R2
1442 bool "MIPS64 Release 2"
1443 depends on SYS_HAS_CPU_MIPS64_R2
1444 select CPU_HAS_PREFETCH
1445 select CPU_SUPPORTS_32BIT_KERNEL
1446 select CPU_SUPPORTS_64BIT_KERNEL
1447 select CPU_SUPPORTS_HIGHMEM
1448 select CPU_SUPPORTS_HUGEPAGES
1449 select CPU_SUPPORTS_MSA
1450 help
1451 Choose this option to build a kernel for release 2 or later of the
1452 MIPS64 architecture. Many modern embedded systems with a 64-bit
1453 MIPS processor are based on a MIPS64 processor. If you know the
1454 specific type of processor in your system, choose those that one
1455 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1456
1457 config CPU_MIPS64_R6
1458 bool "MIPS64 Release 6"
1459 depends on SYS_HAS_CPU_MIPS64_R6
1460 select CPU_HAS_PREFETCH
1461 select CPU_SUPPORTS_32BIT_KERNEL
1462 select CPU_SUPPORTS_64BIT_KERNEL
1463 select CPU_SUPPORTS_HIGHMEM
1464 select CPU_SUPPORTS_MSA
1465 select GENERIC_CSUM
1466 select MIPS_O32_FP64_SUPPORT if MIPS32_O32
1467 help
1468 Choose this option to build a kernel for release 6 or later of the
1469 MIPS64 architecture. New MIPS processors, starting with the Warrior
1470 family, are based on a MIPS64r6 processor. If you own an older
1471 processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1472
1473 config CPU_R3000
1474 bool "R3000"
1475 depends on SYS_HAS_CPU_R3000
1476 select CPU_HAS_WB
1477 select CPU_SUPPORTS_32BIT_KERNEL
1478 select CPU_SUPPORTS_HIGHMEM
1479 help
1480 Please make sure to pick the right CPU type. Linux/MIPS is not
1481 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1482 *not* work on R4000 machines and vice versa. However, since most
1483 of the supported machines have an R4000 (or similar) CPU, R4x00
1484 might be a safe bet. If the resulting kernel does not work,
1485 try to recompile with R3000.
1486
1487 config CPU_TX39XX
1488 bool "R39XX"
1489 depends on SYS_HAS_CPU_TX39XX
1490 select CPU_SUPPORTS_32BIT_KERNEL
1491
1492 config CPU_VR41XX
1493 bool "R41xx"
1494 depends on SYS_HAS_CPU_VR41XX
1495 select CPU_SUPPORTS_32BIT_KERNEL
1496 select CPU_SUPPORTS_64BIT_KERNEL
1497 help
1498 The options selects support for the NEC VR4100 series of processors.
1499 Only choose this option if you have one of these processors as a
1500 kernel built with this option will not run on any other type of
1501 processor or vice versa.
1502
1503 config CPU_R4300
1504 bool "R4300"
1505 depends on SYS_HAS_CPU_R4300
1506 select CPU_SUPPORTS_32BIT_KERNEL
1507 select CPU_SUPPORTS_64BIT_KERNEL
1508 help
1509 MIPS Technologies R4300-series processors.
1510
1511 config CPU_R4X00
1512 bool "R4x00"
1513 depends on SYS_HAS_CPU_R4X00
1514 select CPU_SUPPORTS_32BIT_KERNEL
1515 select CPU_SUPPORTS_64BIT_KERNEL
1516 select CPU_SUPPORTS_HUGEPAGES
1517 help
1518 MIPS Technologies R4000-series processors other than 4300, including
1519 the R4000, R4400, R4600, and 4700.
1520
1521 config CPU_TX49XX
1522 bool "R49XX"
1523 depends on SYS_HAS_CPU_TX49XX
1524 select CPU_HAS_PREFETCH
1525 select CPU_SUPPORTS_32BIT_KERNEL
1526 select CPU_SUPPORTS_64BIT_KERNEL
1527 select CPU_SUPPORTS_HUGEPAGES
1528
1529 config CPU_R5000
1530 bool "R5000"
1531 depends on SYS_HAS_CPU_R5000
1532 select CPU_SUPPORTS_32BIT_KERNEL
1533 select CPU_SUPPORTS_64BIT_KERNEL
1534 select CPU_SUPPORTS_HUGEPAGES
1535 help
1536 MIPS Technologies R5000-series processors other than the Nevada.
1537
1538 config CPU_R5432
1539 bool "R5432"
1540 depends on SYS_HAS_CPU_R5432
1541 select CPU_SUPPORTS_32BIT_KERNEL
1542 select CPU_SUPPORTS_64BIT_KERNEL
1543 select CPU_SUPPORTS_HUGEPAGES
1544
1545 config CPU_R5500
1546 bool "R5500"
1547 depends on SYS_HAS_CPU_R5500
1548 select CPU_SUPPORTS_32BIT_KERNEL
1549 select CPU_SUPPORTS_64BIT_KERNEL
1550 select CPU_SUPPORTS_HUGEPAGES
1551 help
1552 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1553 instruction set.
1554
1555 config CPU_R6000
1556 bool "R6000"
1557 depends on SYS_HAS_CPU_R6000
1558 select CPU_SUPPORTS_32BIT_KERNEL
1559 help
1560 MIPS Technologies R6000 and R6000A series processors. Note these
1561 processors are extremely rare and the support for them is incomplete.
1562
1563 config CPU_NEVADA
1564 bool "RM52xx"
1565 depends on SYS_HAS_CPU_NEVADA
1566 select CPU_SUPPORTS_32BIT_KERNEL
1567 select CPU_SUPPORTS_64BIT_KERNEL
1568 select CPU_SUPPORTS_HUGEPAGES
1569 help
1570 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1571
1572 config CPU_R8000
1573 bool "R8000"
1574 depends on SYS_HAS_CPU_R8000
1575 select CPU_HAS_PREFETCH
1576 select CPU_SUPPORTS_64BIT_KERNEL
1577 help
1578 MIPS Technologies R8000 processors. Note these processors are
1579 uncommon and the support for them is incomplete.
1580
1581 config CPU_R10000
1582 bool "R10000"
1583 depends on SYS_HAS_CPU_R10000
1584 select CPU_HAS_PREFETCH
1585 select CPU_SUPPORTS_32BIT_KERNEL
1586 select CPU_SUPPORTS_64BIT_KERNEL
1587 select CPU_SUPPORTS_HIGHMEM
1588 select CPU_SUPPORTS_HUGEPAGES
1589 help
1590 MIPS Technologies R10000-series processors.
1591
1592 config CPU_RM7000
1593 bool "RM7000"
1594 depends on SYS_HAS_CPU_RM7000
1595 select CPU_HAS_PREFETCH
1596 select CPU_SUPPORTS_32BIT_KERNEL
1597 select CPU_SUPPORTS_64BIT_KERNEL
1598 select CPU_SUPPORTS_HIGHMEM
1599 select CPU_SUPPORTS_HUGEPAGES
1600
1601 config CPU_SB1
1602 bool "SB1"
1603 depends on SYS_HAS_CPU_SB1
1604 select CPU_SUPPORTS_32BIT_KERNEL
1605 select CPU_SUPPORTS_64BIT_KERNEL
1606 select CPU_SUPPORTS_HIGHMEM
1607 select CPU_SUPPORTS_HUGEPAGES
1608 select WEAK_ORDERING
1609
1610 config CPU_CAVIUM_OCTEON
1611 bool "Cavium Octeon processor"
1612 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1613 select CPU_HAS_PREFETCH
1614 select CPU_SUPPORTS_64BIT_KERNEL
1615 select WEAK_ORDERING
1616 select CPU_SUPPORTS_HIGHMEM
1617 select CPU_SUPPORTS_HUGEPAGES
1618 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1619 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1620 select MIPS_L1_CACHE_SHIFT_7
1621 help
1622 The Cavium Octeon processor is a highly integrated chip containing
1623 many ethernet hardware widgets for networking tasks. The processor
1624 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1625 Full details can be found at http://www.caviumnetworks.com.
1626
1627 config CPU_BMIPS
1628 bool "Broadcom BMIPS"
1629 depends on SYS_HAS_CPU_BMIPS
1630 select CPU_MIPS32
1631 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1632 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1633 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1634 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1635 select CPU_SUPPORTS_32BIT_KERNEL
1636 select DMA_NONCOHERENT
1637 select IRQ_MIPS_CPU
1638 select SWAP_IO_SPACE
1639 select WEAK_ORDERING
1640 select CPU_SUPPORTS_HIGHMEM
1641 select CPU_HAS_PREFETCH
1642 help
1643 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1644
1645 config CPU_XLR
1646 bool "Netlogic XLR SoC"
1647 depends on SYS_HAS_CPU_XLR
1648 select CPU_SUPPORTS_32BIT_KERNEL
1649 select CPU_SUPPORTS_64BIT_KERNEL
1650 select CPU_SUPPORTS_HIGHMEM
1651 select CPU_SUPPORTS_HUGEPAGES
1652 select WEAK_ORDERING
1653 select WEAK_REORDERING_BEYOND_LLSC
1654 help
1655 Netlogic Microsystems XLR/XLS processors.
1656
1657 config CPU_XLP
1658 bool "Netlogic XLP SoC"
1659 depends on SYS_HAS_CPU_XLP
1660 select CPU_SUPPORTS_32BIT_KERNEL
1661 select CPU_SUPPORTS_64BIT_KERNEL
1662 select CPU_SUPPORTS_HIGHMEM
1663 select WEAK_ORDERING
1664 select WEAK_REORDERING_BEYOND_LLSC
1665 select CPU_HAS_PREFETCH
1666 select CPU_MIPSR2
1667 select CPU_SUPPORTS_HUGEPAGES
1668 help
1669 Netlogic Microsystems XLP processors.
1670 endchoice
1671
1672 config CPU_MIPS32_3_5_FEATURES
1673 bool "MIPS32 Release 3.5 Features"
1674 depends on SYS_HAS_CPU_MIPS32_R3_5
1675 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1676 help
1677 Choose this option to build a kernel for release 2 or later of the
1678 MIPS32 architecture including features from the 3.5 release such as
1679 support for Enhanced Virtual Addressing (EVA).
1680
1681 config CPU_MIPS32_3_5_EVA
1682 bool "Enhanced Virtual Addressing (EVA)"
1683 depends on CPU_MIPS32_3_5_FEATURES
1684 select EVA
1685 default y
1686 help
1687 Choose this option if you want to enable the Enhanced Virtual
1688 Addressing (EVA) on your MIPS32 core (such as proAptiv).
1689 One of its primary benefits is an increase in the maximum size
1690 of lowmem (up to 3GB). If unsure, say 'N' here.
1691
1692 config CPU_MIPS32_R5_FEATURES
1693 bool "MIPS32 Release 5 Features"
1694 depends on SYS_HAS_CPU_MIPS32_R5
1695 depends on CPU_MIPS32_R2
1696 help
1697 Choose this option to build a kernel for release 2 or later of the
1698 MIPS32 architecture including features from release 5 such as
1699 support for Extended Physical Addressing (XPA).
1700
1701 config CPU_MIPS32_R5_XPA
1702 bool "Extended Physical Addressing (XPA)"
1703 depends on CPU_MIPS32_R5_FEATURES
1704 depends on !EVA
1705 depends on !PAGE_SIZE_4KB
1706 depends on SYS_SUPPORTS_HIGHMEM
1707 select XPA
1708 select HIGHMEM
1709 select ARCH_PHYS_ADDR_T_64BIT
1710 default n
1711 help
1712 Choose this option if you want to enable the Extended Physical
1713 Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1714 benefit is to increase physical addressing equal to or greater
1715 than 40 bits. Note that this has the side effect of turning on
1716 64-bit addressing which in turn makes the PTEs 64-bit in size.
1717 If unsure, say 'N' here.
1718
1719 if CPU_LOONGSON2F
1720 config CPU_NOP_WORKAROUNDS
1721 bool
1722
1723 config CPU_JUMP_WORKAROUNDS
1724 bool
1725
1726 config CPU_LOONGSON2F_WORKAROUNDS
1727 bool "Loongson 2F Workarounds"
1728 default y
1729 select CPU_NOP_WORKAROUNDS
1730 select CPU_JUMP_WORKAROUNDS
1731 help
1732 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1733 require workarounds. Without workarounds the system may hang
1734 unexpectedly. For more information please refer to the gas
1735 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1736
1737 Loongson 2F03 and later have fixed these issues and no workarounds
1738 are needed. The workarounds have no significant side effect on them
1739 but may decrease the performance of the system so this option should
1740 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1741 systems.
1742
1743 If unsure, please say Y.
1744 endif # CPU_LOONGSON2F
1745
1746 config SYS_SUPPORTS_ZBOOT
1747 bool
1748 select HAVE_KERNEL_GZIP
1749 select HAVE_KERNEL_BZIP2
1750 select HAVE_KERNEL_LZ4
1751 select HAVE_KERNEL_LZMA
1752 select HAVE_KERNEL_LZO
1753 select HAVE_KERNEL_XZ
1754
1755 config SYS_SUPPORTS_ZBOOT_UART16550
1756 bool
1757 select SYS_SUPPORTS_ZBOOT
1758
1759 config CPU_LOONGSON2
1760 bool
1761 select CPU_SUPPORTS_32BIT_KERNEL
1762 select CPU_SUPPORTS_64BIT_KERNEL
1763 select CPU_SUPPORTS_HIGHMEM
1764 select CPU_SUPPORTS_HUGEPAGES
1765
1766 config CPU_LOONGSON1
1767 bool
1768 select CPU_MIPS32
1769 select CPU_MIPSR2
1770 select CPU_HAS_PREFETCH
1771 select CPU_SUPPORTS_32BIT_KERNEL
1772 select CPU_SUPPORTS_HIGHMEM
1773 select CPU_SUPPORTS_CPUFREQ
1774
1775 config CPU_BMIPS32_3300
1776 select SMP_UP if SMP
1777 bool
1778
1779 config CPU_BMIPS4350
1780 bool
1781 select SYS_SUPPORTS_SMP
1782 select SYS_SUPPORTS_HOTPLUG_CPU
1783
1784 config CPU_BMIPS4380
1785 bool
1786 select MIPS_L1_CACHE_SHIFT_6
1787 select SYS_SUPPORTS_SMP
1788 select SYS_SUPPORTS_HOTPLUG_CPU
1789
1790 config CPU_BMIPS5000
1791 bool
1792 select MIPS_CPU_SCACHE
1793 select MIPS_L1_CACHE_SHIFT_7
1794 select SYS_SUPPORTS_SMP
1795 select SYS_SUPPORTS_HOTPLUG_CPU
1796
1797 config SYS_HAS_CPU_LOONGSON3
1798 bool
1799 select CPU_SUPPORTS_CPUFREQ
1800
1801 config SYS_HAS_CPU_LOONGSON2E
1802 bool
1803
1804 config SYS_HAS_CPU_LOONGSON2F
1805 bool
1806 select CPU_SUPPORTS_CPUFREQ
1807 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1808 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1809
1810 config SYS_HAS_CPU_LOONGSON1B
1811 bool
1812
1813 config SYS_HAS_CPU_MIPS32_R1
1814 bool
1815
1816 config SYS_HAS_CPU_MIPS32_R2
1817 bool
1818
1819 config SYS_HAS_CPU_MIPS32_R3_5
1820 bool
1821
1822 config SYS_HAS_CPU_MIPS32_R5
1823 bool
1824
1825 config SYS_HAS_CPU_MIPS32_R6
1826 bool
1827
1828 config SYS_HAS_CPU_MIPS64_R1
1829 bool
1830
1831 config SYS_HAS_CPU_MIPS64_R2
1832 bool
1833
1834 config SYS_HAS_CPU_MIPS64_R6
1835 bool
1836
1837 config SYS_HAS_CPU_R3000
1838 bool
1839
1840 config SYS_HAS_CPU_TX39XX
1841 bool
1842
1843 config SYS_HAS_CPU_VR41XX
1844 bool
1845
1846 config SYS_HAS_CPU_R4300
1847 bool
1848
1849 config SYS_HAS_CPU_R4X00
1850 bool
1851
1852 config SYS_HAS_CPU_TX49XX
1853 bool
1854
1855 config SYS_HAS_CPU_R5000
1856 bool
1857
1858 config SYS_HAS_CPU_R5432
1859 bool
1860
1861 config SYS_HAS_CPU_R5500
1862 bool
1863
1864 config SYS_HAS_CPU_R6000
1865 bool
1866
1867 config SYS_HAS_CPU_NEVADA
1868 bool
1869
1870 config SYS_HAS_CPU_R8000
1871 bool
1872
1873 config SYS_HAS_CPU_R10000
1874 bool
1875
1876 config SYS_HAS_CPU_RM7000
1877 bool
1878
1879 config SYS_HAS_CPU_SB1
1880 bool
1881
1882 config SYS_HAS_CPU_CAVIUM_OCTEON
1883 bool
1884
1885 config SYS_HAS_CPU_BMIPS
1886 bool
1887
1888 config SYS_HAS_CPU_BMIPS32_3300
1889 bool
1890 select SYS_HAS_CPU_BMIPS
1891
1892 config SYS_HAS_CPU_BMIPS4350
1893 bool
1894 select SYS_HAS_CPU_BMIPS
1895
1896 config SYS_HAS_CPU_BMIPS4380
1897 bool
1898 select SYS_HAS_CPU_BMIPS
1899
1900 config SYS_HAS_CPU_BMIPS5000
1901 bool
1902 select SYS_HAS_CPU_BMIPS
1903
1904 config SYS_HAS_CPU_XLR
1905 bool
1906
1907 config SYS_HAS_CPU_XLP
1908 bool
1909
1910 config MIPS_MALTA_PM
1911 depends on MIPS_MALTA
1912 depends on PCI
1913 bool
1914 default y
1915
1916 #
1917 # CPU may reorder R->R, R->W, W->R, W->W
1918 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1919 #
1920 config WEAK_ORDERING
1921 bool
1922
1923 #
1924 # CPU may reorder reads and writes beyond LL/SC
1925 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1926 #
1927 config WEAK_REORDERING_BEYOND_LLSC
1928 bool
1929 endmenu
1930
1931 #
1932 # These two indicate any level of the MIPS32 and MIPS64 architecture
1933 #
1934 config CPU_MIPS32
1935 bool
1936 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
1937
1938 config CPU_MIPS64
1939 bool
1940 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
1941
1942 #
1943 # These two indicate the revision of the architecture, either Release 1 or Release 2
1944 #
1945 config CPU_MIPSR1
1946 bool
1947 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1948
1949 config CPU_MIPSR2
1950 bool
1951 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1952 select MIPS_SPRAM
1953
1954 config CPU_MIPSR6
1955 bool
1956 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
1957 select MIPS_SPRAM
1958
1959 config EVA
1960 bool
1961
1962 config XPA
1963 bool
1964
1965 config SYS_SUPPORTS_32BIT_KERNEL
1966 bool
1967 config SYS_SUPPORTS_64BIT_KERNEL
1968 bool
1969 config CPU_SUPPORTS_32BIT_KERNEL
1970 bool
1971 config CPU_SUPPORTS_64BIT_KERNEL
1972 bool
1973 config CPU_SUPPORTS_CPUFREQ
1974 bool
1975 config CPU_SUPPORTS_ADDRWINCFG
1976 bool
1977 config CPU_SUPPORTS_HUGEPAGES
1978 bool
1979 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1980 bool
1981 config MIPS_PGD_C0_CONTEXT
1982 bool
1983 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1984
1985 #
1986 # Set to y for ptrace access to watch registers.
1987 #
1988 config HARDWARE_WATCHPOINTS
1989 bool
1990 default y if CPU_MIPSR1 || CPU_MIPSR2
1991
1992 menu "Kernel type"
1993
1994 choice
1995 prompt "Kernel code model"
1996 help
1997 You should only select this option if you have a workload that
1998 actually benefits from 64-bit processing or if your machine has
1999 large memory. You will only be presented a single option in this
2000 menu if your system does not support both 32-bit and 64-bit kernels.
2001
2002 config 32BIT
2003 bool "32-bit kernel"
2004 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2005 select TRAD_SIGNALS
2006 help
2007 Select this option if you want to build a 32-bit kernel.
2008
2009 config 64BIT
2010 bool "64-bit kernel"
2011 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2012 help
2013 Select this option if you want to build a 64-bit kernel.
2014
2015 endchoice
2016
2017 config KVM_GUEST
2018 bool "KVM Guest Kernel"
2019 depends on BROKEN_ON_SMP
2020 help
2021 Select this option if building a guest kernel for KVM (Trap & Emulate) mode
2022
2023 config KVM_GUEST_TIMER_FREQ
2024 int "Count/Compare Timer Frequency (MHz)"
2025 depends on KVM_GUEST
2026 default 100
2027 help
2028 Set this to non-zero if building a guest kernel for KVM to skip RTC
2029 emulation when determining guest CPU Frequency. Instead, the guest's
2030 timer frequency is specified directly.
2031
2032 choice
2033 prompt "Kernel page size"
2034 default PAGE_SIZE_4KB
2035
2036 config PAGE_SIZE_4KB
2037 bool "4kB"
2038 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
2039 help
2040 This option select the standard 4kB Linux page size. On some
2041 R3000-family processors this is the only available page size. Using
2042 4kB page size will minimize memory consumption and is therefore
2043 recommended for low memory systems.
2044
2045 config PAGE_SIZE_8KB
2046 bool "8kB"
2047 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
2048 help
2049 Using 8kB page size will result in higher performance kernel at
2050 the price of higher memory consumption. This option is available
2051 only on R8000 and cnMIPS processors. Note that you will need a
2052 suitable Linux distribution to support this.
2053
2054 config PAGE_SIZE_16KB
2055 bool "16kB"
2056 depends on !CPU_R3000 && !CPU_TX39XX
2057 help
2058 Using 16kB page size will result in higher performance kernel at
2059 the price of higher memory consumption. This option is available on
2060 all non-R3000 family processors. Note that you will need a suitable
2061 Linux distribution to support this.
2062
2063 config PAGE_SIZE_32KB
2064 bool "32kB"
2065 depends on CPU_CAVIUM_OCTEON
2066 help
2067 Using 32kB page size will result in higher performance kernel at
2068 the price of higher memory consumption. This option is available
2069 only on cnMIPS cores. Note that you will need a suitable Linux
2070 distribution to support this.
2071
2072 config PAGE_SIZE_64KB
2073 bool "64kB"
2074 depends on !CPU_R3000 && !CPU_TX39XX
2075 help
2076 Using 64kB page size will result in higher performance kernel at
2077 the price of higher memory consumption. This option is available on
2078 all non-R3000 family processor. Not that at the time of this
2079 writing this option is still high experimental.
2080
2081 endchoice
2082
2083 config FORCE_MAX_ZONEORDER
2084 int "Maximum zone order"
2085 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2086 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2087 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2088 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2089 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2090 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2091 range 11 64
2092 default "11"
2093 help
2094 The kernel memory allocator divides physically contiguous memory
2095 blocks into "zones", where each zone is a power of two number of
2096 pages. This option selects the largest power of two that the kernel
2097 keeps in the memory allocator. If you need to allocate very large
2098 blocks of physically contiguous memory, then you may need to
2099 increase this value.
2100
2101 This config option is actually maximum order plus one. For example,
2102 a value of 11 means that the largest free memory block is 2^10 pages.
2103
2104 The page size is not necessarily 4KB. Keep this in mind
2105 when choosing a value for this option.
2106
2107 config BOARD_SCACHE
2108 bool
2109
2110 config IP22_CPU_SCACHE
2111 bool
2112 select BOARD_SCACHE
2113
2114 #
2115 # Support for a MIPS32 / MIPS64 style S-caches
2116 #
2117 config MIPS_CPU_SCACHE
2118 bool
2119 select BOARD_SCACHE
2120
2121 config R5000_CPU_SCACHE
2122 bool
2123 select BOARD_SCACHE
2124
2125 config RM7000_CPU_SCACHE
2126 bool
2127 select BOARD_SCACHE
2128
2129 config SIBYTE_DMA_PAGEOPS
2130 bool "Use DMA to clear/copy pages"
2131 depends on CPU_SB1
2132 help
2133 Instead of using the CPU to zero and copy pages, use a Data Mover
2134 channel. These DMA channels are otherwise unused by the standard
2135 SiByte Linux port. Seems to give a small performance benefit.
2136
2137 config CPU_HAS_PREFETCH
2138 bool
2139
2140 config CPU_GENERIC_DUMP_TLB
2141 bool
2142 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
2143
2144 config CPU_R4K_FPU
2145 bool
2146 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2147
2148 config CPU_R4K_CACHE_TLB
2149 bool
2150 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2151
2152 config MIPS_MT_SMP
2153 bool "MIPS MT SMP support (1 TC on each available VPE)"
2154 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6
2155 select CPU_MIPSR2_IRQ_VI
2156 select CPU_MIPSR2_IRQ_EI
2157 select SYNC_R4K
2158 select MIPS_GIC_IPI
2159 select MIPS_MT
2160 select SMP
2161 select SMP_UP
2162 select SYS_SUPPORTS_SMP
2163 select SYS_SUPPORTS_SCHED_SMT
2164 select MIPS_PERF_SHARED_TC_COUNTERS
2165 help
2166 This is a kernel model which is known as SMVP. This is supported
2167 on cores with the MT ASE and uses the available VPEs to implement
2168 virtual processors which supports SMP. This is equivalent to the
2169 Intel Hyperthreading feature. For further information go to
2170 <http://www.imgtec.com/mips/mips-multithreading.asp>.
2171
2172 config MIPS_MT
2173 bool
2174
2175 config SCHED_SMT
2176 bool "SMT (multithreading) scheduler support"
2177 depends on SYS_SUPPORTS_SCHED_SMT
2178 default n
2179 help
2180 SMT scheduler support improves the CPU scheduler's decision making
2181 when dealing with MIPS MT enabled cores at a cost of slightly
2182 increased overhead in some places. If unsure say N here.
2183
2184 config SYS_SUPPORTS_SCHED_SMT
2185 bool
2186
2187 config SYS_SUPPORTS_MULTITHREADING
2188 bool
2189
2190 config MIPS_MT_FPAFF
2191 bool "Dynamic FPU affinity for FP-intensive threads"
2192 default y
2193 depends on MIPS_MT_SMP
2194
2195 config MIPSR2_TO_R6_EMULATOR
2196 bool "MIPS R2-to-R6 emulator"
2197 depends on CPU_MIPSR6 && !SMP
2198 default y
2199 help
2200 Choose this option if you want to run non-R6 MIPS userland code.
2201 Even if you say 'Y' here, the emulator will still be disabled by
2202 default. You can enable it using the 'mipsr2emu' kernel option.
2203 The only reason this is a build-time option is to save ~14K from the
2204 final kernel image.
2205 comment "MIPS R2-to-R6 emulator is only available for UP kernels"
2206 depends on SMP && CPU_MIPSR6
2207
2208 config MIPS_VPE_LOADER
2209 bool "VPE loader support."
2210 depends on SYS_SUPPORTS_MULTITHREADING && MODULES
2211 select CPU_MIPSR2_IRQ_VI
2212 select CPU_MIPSR2_IRQ_EI
2213 select MIPS_MT
2214 help
2215 Includes a loader for loading an elf relocatable object
2216 onto another VPE and running it.
2217
2218 config MIPS_VPE_LOADER_CMP
2219 bool
2220 default "y"
2221 depends on MIPS_VPE_LOADER && MIPS_CMP
2222
2223 config MIPS_VPE_LOADER_MT
2224 bool
2225 default "y"
2226 depends on MIPS_VPE_LOADER && !MIPS_CMP
2227
2228 config MIPS_VPE_LOADER_TOM
2229 bool "Load VPE program into memory hidden from linux"
2230 depends on MIPS_VPE_LOADER
2231 default y
2232 help
2233 The loader can use memory that is present but has been hidden from
2234 Linux using the kernel command line option "mem=xxMB". It's up to
2235 you to ensure the amount you put in the option and the space your
2236 program requires is less or equal to the amount physically present.
2237
2238 config MIPS_VPE_APSP_API
2239 bool "Enable support for AP/SP API (RTLX)"
2240 depends on MIPS_VPE_LOADER
2241 help
2242
2243 config MIPS_VPE_APSP_API_CMP
2244 bool
2245 default "y"
2246 depends on MIPS_VPE_APSP_API && MIPS_CMP
2247
2248 config MIPS_VPE_APSP_API_MT
2249 bool
2250 default "y"
2251 depends on MIPS_VPE_APSP_API && !MIPS_CMP
2252
2253 config MIPS_CMP
2254 bool "MIPS CMP framework support (DEPRECATED)"
2255 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2256 select MIPS_GIC_IPI
2257 select SMP
2258 select SYNC_R4K
2259 select SYS_SUPPORTS_SMP
2260 select WEAK_ORDERING
2261 default n
2262 help
2263 Select this if you are using a bootloader which implements the "CMP
2264 framework" protocol (ie. YAMON) and want your kernel to make use of
2265 its ability to start secondary CPUs.
2266
2267 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2268 instead of this.
2269
2270 config MIPS_CPS
2271 bool "MIPS Coherent Processing System support"
2272 depends on SYS_SUPPORTS_MIPS_CPS && !CPU_MIPSR6
2273 select MIPS_CM
2274 select MIPS_CPC
2275 select MIPS_CPS_PM if HOTPLUG_CPU
2276 select MIPS_GIC_IPI
2277 select SMP
2278 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2279 select SYS_SUPPORTS_HOTPLUG_CPU
2280 select SYS_SUPPORTS_SMP
2281 select WEAK_ORDERING
2282 help
2283 Select this if you wish to run an SMP kernel across multiple cores
2284 within a MIPS Coherent Processing System. When this option is
2285 enabled the kernel will probe for other cores and boot them with
2286 no external assistance. It is safe to enable this when hardware
2287 support is unavailable.
2288
2289 config MIPS_CPS_PM
2290 depends on MIPS_CPS
2291 select MIPS_CPC
2292 bool
2293
2294 config MIPS_GIC_IPI
2295 bool
2296
2297 config MIPS_CM
2298 bool
2299
2300 config MIPS_CPC
2301 bool
2302
2303 config SB1_PASS_2_WORKAROUNDS
2304 bool
2305 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2306 default y
2307
2308 config SB1_PASS_2_1_WORKAROUNDS
2309 bool
2310 depends on CPU_SB1 && CPU_SB1_PASS_2
2311 default y
2312
2313
2314 config ARCH_PHYS_ADDR_T_64BIT
2315 bool
2316
2317 choice
2318 prompt "SmartMIPS or microMIPS ASE support"
2319
2320 config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2321 bool "None"
2322 help
2323 Select this if you want neither microMIPS nor SmartMIPS support
2324
2325 config CPU_HAS_SMARTMIPS
2326 depends on SYS_SUPPORTS_SMARTMIPS
2327 bool "SmartMIPS"
2328 help
2329 SmartMIPS is a extension of the MIPS32 architecture aimed at
2330 increased security at both hardware and software level for
2331 smartcards. Enabling this option will allow proper use of the
2332 SmartMIPS instructions by Linux applications. However a kernel with
2333 this option will not work on a MIPS core without SmartMIPS core. If
2334 you don't know you probably don't have SmartMIPS and should say N
2335 here.
2336
2337 config CPU_MICROMIPS
2338 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2339 bool "microMIPS"
2340 help
2341 When this option is enabled the kernel will be built using the
2342 microMIPS ISA
2343
2344 endchoice
2345
2346 config CPU_HAS_MSA
2347 bool "Support for the MIPS SIMD Architecture"
2348 depends on CPU_SUPPORTS_MSA
2349 depends on 64BIT || MIPS_O32_FP64_SUPPORT
2350 help
2351 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2352 and a set of SIMD instructions to operate on them. When this option
2353 is enabled the kernel will support allocating & switching MSA
2354 vector register contexts. If you know that your kernel will only be
2355 running on CPUs which do not support MSA or that your userland will
2356 not be making use of it then you may wish to say N here to reduce
2357 the size & complexity of your kernel.
2358
2359 If unsure, say Y.
2360
2361 config CPU_HAS_WB
2362 bool
2363
2364 config XKS01
2365 bool
2366
2367 #
2368 # Vectored interrupt mode is an R2 feature
2369 #
2370 config CPU_MIPSR2_IRQ_VI
2371 bool
2372
2373 #
2374 # Extended interrupt mode is an R2 feature
2375 #
2376 config CPU_MIPSR2_IRQ_EI
2377 bool
2378
2379 config CPU_HAS_SYNC
2380 bool
2381 depends on !CPU_R3000
2382 default y
2383
2384 #
2385 # CPU non-features
2386 #
2387 config CPU_DADDI_WORKAROUNDS
2388 bool
2389
2390 config CPU_R4000_WORKAROUNDS
2391 bool
2392 select CPU_R4400_WORKAROUNDS
2393
2394 config CPU_R4400_WORKAROUNDS
2395 bool
2396
2397 #
2398 # - Highmem only makes sense for the 32-bit kernel.
2399 # - The current highmem code will only work properly on physically indexed
2400 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2401 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2402 # moment we protect the user and offer the highmem option only on machines
2403 # where it's known to be safe. This will not offer highmem on a few systems
2404 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2405 # indexed CPUs but we're playing safe.
2406 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2407 # know they might have memory configurations that could make use of highmem
2408 # support.
2409 #
2410 config HIGHMEM
2411 bool "High Memory Support"
2412 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2413
2414 config CPU_SUPPORTS_HIGHMEM
2415 bool
2416
2417 config SYS_SUPPORTS_HIGHMEM
2418 bool
2419
2420 config SYS_SUPPORTS_SMARTMIPS
2421 bool
2422
2423 config SYS_SUPPORTS_MICROMIPS
2424 bool
2425
2426 config SYS_SUPPORTS_MIPS16
2427 bool
2428 help
2429 This option must be set if a kernel might be executed on a MIPS16-
2430 enabled CPU even if MIPS16 is not actually being used. In other
2431 words, it makes the kernel MIPS16-tolerant.
2432
2433 config CPU_SUPPORTS_MSA
2434 bool
2435
2436 config ARCH_FLATMEM_ENABLE
2437 def_bool y
2438 depends on !NUMA && !CPU_LOONGSON2
2439
2440 config ARCH_DISCONTIGMEM_ENABLE
2441 bool
2442 default y if SGI_IP27
2443 help
2444 Say Y to support efficient handling of discontiguous physical memory,
2445 for architectures which are either NUMA (Non-Uniform Memory Access)
2446 or have huge holes in the physical address space for other reasons.
2447 See <file:Documentation/vm/numa> for more.
2448
2449 config ARCH_SPARSEMEM_ENABLE
2450 bool
2451 select SPARSEMEM_STATIC
2452
2453 config NUMA
2454 bool "NUMA Support"
2455 depends on SYS_SUPPORTS_NUMA
2456 help
2457 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2458 Access). This option improves performance on systems with more
2459 than two nodes; on two node systems it is generally better to
2460 leave it disabled; on single node systems disable this option
2461 disabled.
2462
2463 config SYS_SUPPORTS_NUMA
2464 bool
2465
2466 config NODES_SHIFT
2467 int
2468 default "6"
2469 depends on NEED_MULTIPLE_NODES
2470
2471 config HW_PERF_EVENTS
2472 bool "Enable hardware performance counter support for perf events"
2473 depends on PERF_EVENTS && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2474 default y
2475 help
2476 Enable hardware performance counter support for perf events. If
2477 disabled, perf events will use software events only.
2478
2479 source "mm/Kconfig"
2480
2481 config SMP
2482 bool "Multi-Processing support"
2483 depends on SYS_SUPPORTS_SMP
2484 help
2485 This enables support for systems with more than one CPU. If you have
2486 a system with only one CPU, say N. If you have a system with more
2487 than one CPU, say Y.
2488
2489 If you say N here, the kernel will run on uni- and multiprocessor
2490 machines, but will use only one CPU of a multiprocessor machine. If
2491 you say Y here, the kernel will run on many, but not all,
2492 uniprocessor machines. On a uniprocessor machine, the kernel
2493 will run faster if you say N here.
2494
2495 People using multiprocessor machines who say Y here should also say
2496 Y to "Enhanced Real Time Clock Support", below.
2497
2498 See also the SMP-HOWTO available at
2499 <http://www.tldp.org/docs.html#howto>.
2500
2501 If you don't know what to do here, say N.
2502
2503 config SMP_UP
2504 bool
2505
2506 config SYS_SUPPORTS_MIPS_CMP
2507 bool
2508
2509 config SYS_SUPPORTS_MIPS_CPS
2510 bool
2511
2512 config SYS_SUPPORTS_SMP
2513 bool
2514
2515 config NR_CPUS_DEFAULT_4
2516 bool
2517
2518 config NR_CPUS_DEFAULT_8
2519 bool
2520
2521 config NR_CPUS_DEFAULT_16
2522 bool
2523
2524 config NR_CPUS_DEFAULT_32
2525 bool
2526
2527 config NR_CPUS_DEFAULT_64
2528 bool
2529
2530 config NR_CPUS
2531 int "Maximum number of CPUs (2-256)"
2532 range 2 256
2533 depends on SMP
2534 default "4" if NR_CPUS_DEFAULT_4
2535 default "8" if NR_CPUS_DEFAULT_8
2536 default "16" if NR_CPUS_DEFAULT_16
2537 default "32" if NR_CPUS_DEFAULT_32
2538 default "64" if NR_CPUS_DEFAULT_64
2539 help
2540 This allows you to specify the maximum number of CPUs which this
2541 kernel will support. The maximum supported value is 32 for 32-bit
2542 kernel and 64 for 64-bit kernels; the minimum value which makes
2543 sense is 1 for Qemu (useful only for kernel debugging purposes)
2544 and 2 for all others.
2545
2546 This is purely to save memory - each supported CPU adds
2547 approximately eight kilobytes to the kernel image. For best
2548 performance should round up your number of processors to the next
2549 power of two.
2550
2551 config MIPS_PERF_SHARED_TC_COUNTERS
2552 bool
2553
2554 #
2555 # Timer Interrupt Frequency Configuration
2556 #
2557
2558 choice
2559 prompt "Timer frequency"
2560 default HZ_250
2561 help
2562 Allows the configuration of the timer frequency.
2563
2564 config HZ_24
2565 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2566
2567 config HZ_48
2568 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2569
2570 config HZ_100
2571 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2572
2573 config HZ_128
2574 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2575
2576 config HZ_250
2577 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2578
2579 config HZ_256
2580 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2581
2582 config HZ_1000
2583 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2584
2585 config HZ_1024
2586 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2587
2588 endchoice
2589
2590 config SYS_SUPPORTS_24HZ
2591 bool
2592
2593 config SYS_SUPPORTS_48HZ
2594 bool
2595
2596 config SYS_SUPPORTS_100HZ
2597 bool
2598
2599 config SYS_SUPPORTS_128HZ
2600 bool
2601
2602 config SYS_SUPPORTS_250HZ
2603 bool
2604
2605 config SYS_SUPPORTS_256HZ
2606 bool
2607
2608 config SYS_SUPPORTS_1000HZ
2609 bool
2610
2611 config SYS_SUPPORTS_1024HZ
2612 bool
2613
2614 config SYS_SUPPORTS_ARBIT_HZ
2615 bool
2616 default y if !SYS_SUPPORTS_24HZ && \
2617 !SYS_SUPPORTS_48HZ && \
2618 !SYS_SUPPORTS_100HZ && \
2619 !SYS_SUPPORTS_128HZ && \
2620 !SYS_SUPPORTS_250HZ && \
2621 !SYS_SUPPORTS_256HZ && \
2622 !SYS_SUPPORTS_1000HZ && \
2623 !SYS_SUPPORTS_1024HZ
2624
2625 config HZ
2626 int
2627 default 24 if HZ_24
2628 default 48 if HZ_48
2629 default 100 if HZ_100
2630 default 128 if HZ_128
2631 default 250 if HZ_250
2632 default 256 if HZ_256
2633 default 1000 if HZ_1000
2634 default 1024 if HZ_1024
2635
2636 config SCHED_HRTICK
2637 def_bool HIGH_RES_TIMERS
2638
2639 source "kernel/Kconfig.preempt"
2640
2641 config KEXEC
2642 bool "Kexec system call"
2643 select KEXEC_CORE
2644 help
2645 kexec is a system call that implements the ability to shutdown your
2646 current kernel, and to start another kernel. It is like a reboot
2647 but it is independent of the system firmware. And like a reboot
2648 you can start any kernel with it, not just Linux.
2649
2650 The name comes from the similarity to the exec system call.
2651
2652 It is an ongoing process to be certain the hardware in a machine
2653 is properly shutdown, so do not be surprised if this code does not
2654 initially work for you. As of this writing the exact hardware
2655 interface is strongly in flux, so no good recommendation can be
2656 made.
2657
2658 config CRASH_DUMP
2659 bool "Kernel crash dumps"
2660 help
2661 Generate crash dump after being started by kexec.
2662 This should be normally only set in special crash dump kernels
2663 which are loaded in the main kernel with kexec-tools into
2664 a specially reserved region and then later executed after
2665 a crash by kdump/kexec. The crash dump kernel must be compiled
2666 to a memory address not used by the main kernel or firmware using
2667 PHYSICAL_START.
2668
2669 config PHYSICAL_START
2670 hex "Physical address where the kernel is loaded"
2671 default "0xffffffff84000000" if 64BIT
2672 default "0x84000000" if 32BIT
2673 depends on CRASH_DUMP
2674 help
2675 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2676 If you plan to use kernel for capturing the crash dump change
2677 this value to start of the reserved region (the "X" value as
2678 specified in the "crashkernel=YM@XM" command line boot parameter
2679 passed to the panic-ed kernel).
2680
2681 config SECCOMP
2682 bool "Enable seccomp to safely compute untrusted bytecode"
2683 depends on PROC_FS
2684 default y
2685 help
2686 This kernel feature is useful for number crunching applications
2687 that may need to compute untrusted bytecode during their
2688 execution. By using pipes or other transports made available to
2689 the process as file descriptors supporting the read/write
2690 syscalls, it's possible to isolate those applications in
2691 their own address space using seccomp. Once seccomp is
2692 enabled via /proc/<pid>/seccomp, it cannot be disabled
2693 and the task is only allowed to execute a few safe syscalls
2694 defined by each seccomp mode.
2695
2696 If unsure, say Y. Only embedded should say N here.
2697
2698 config MIPS_O32_FP64_SUPPORT
2699 bool "Support for O32 binaries using 64-bit FP"
2700 depends on 32BIT || MIPS32_O32
2701 help
2702 When this is enabled, the kernel will support use of 64-bit floating
2703 point registers with binaries using the O32 ABI along with the
2704 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2705 32-bit MIPS systems this support is at the cost of increasing the
2706 size and complexity of the compiled FPU emulator. Thus if you are
2707 running a MIPS32 system and know that none of your userland binaries
2708 will require 64-bit floating point, you may wish to reduce the size
2709 of your kernel & potentially improve FP emulation performance by
2710 saying N here.
2711
2712 Although binutils currently supports use of this flag the details
2713 concerning its effect upon the O32 ABI in userland are still being
2714 worked on. In order to avoid userland becoming dependant upon current
2715 behaviour before the details have been finalised, this option should
2716 be considered experimental and only enabled by those working upon
2717 said details.
2718
2719 If unsure, say N.
2720
2721 config USE_OF
2722 bool
2723 select OF
2724 select OF_EARLY_FLATTREE
2725 select IRQ_DOMAIN
2726
2727 config BUILTIN_DTB
2728 bool
2729
2730 choice
2731 prompt "Kernel appended dtb support" if USE_OF
2732 default MIPS_NO_APPENDED_DTB
2733
2734 config MIPS_NO_APPENDED_DTB
2735 bool "None"
2736 help
2737 Do not enable appended dtb support.
2738
2739 config MIPS_ELF_APPENDED_DTB
2740 bool "vmlinux"
2741 help
2742 With this option, the boot code will look for a device tree binary
2743 DTB) included in the vmlinux ELF section .appended_dtb. By default
2744 it is empty and the DTB can be appended using binutils command
2745 objcopy:
2746
2747 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
2748
2749 This is meant as a backward compatiblity convenience for those
2750 systems with a bootloader that can't be upgraded to accommodate
2751 the documented boot protocol using a device tree.
2752
2753 config MIPS_RAW_APPENDED_DTB
2754 bool "vmlinux.bin"
2755 help
2756 With this option, the boot code will look for a device tree binary
2757 DTB) appended to raw vmlinux.bin (without decompressor).
2758 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
2759
2760 This is meant as a backward compatibility convenience for those
2761 systems with a bootloader that can't be upgraded to accommodate
2762 the documented boot protocol using a device tree.
2763
2764 Beware that there is very little in terms of protection against
2765 this option being confused by leftover garbage in memory that might
2766 look like a DTB header after a reboot if no actual DTB is appended
2767 to vmlinux.bin. Do not leave this option active in a production kernel
2768 if you don't intend to always append a DTB.
2769
2770 config MIPS_ZBOOT_APPENDED_DTB
2771 bool "vmlinuz.bin"
2772 depends on SYS_SUPPORTS_ZBOOT
2773 help
2774 With this option, the boot code will look for a device tree binary
2775 DTB) appended to raw vmlinuz.bin (with decompressor).
2776 (e.g. cat vmlinuz.bin <filename>.dtb > vmlinuz_w_dtb).
2777
2778 This is meant as a backward compatibility convenience for those
2779 systems with a bootloader that can't be upgraded to accommodate
2780 the documented boot protocol using a device tree.
2781
2782 Beware that there is very little in terms of protection against
2783 this option being confused by leftover garbage in memory that might
2784 look like a DTB header after a reboot if no actual DTB is appended
2785 to vmlinuz.bin. Do not leave this option active in a production kernel
2786 if you don't intend to always append a DTB.
2787 endchoice
2788
2789 choice
2790 prompt "Kernel command line type" if !CMDLINE_OVERRIDE
2791 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
2792 !MIPS_MALTA && !MIPS_SEAD3 && \
2793 !CAVIUM_OCTEON_SOC
2794 default MIPS_CMDLINE_FROM_BOOTLOADER
2795
2796 config MIPS_CMDLINE_FROM_DTB
2797 depends on USE_OF
2798 bool "Dtb kernel arguments if available"
2799
2800 config MIPS_CMDLINE_DTB_EXTEND
2801 depends on USE_OF
2802 bool "Extend dtb kernel arguments with bootloader arguments"
2803
2804 config MIPS_CMDLINE_FROM_BOOTLOADER
2805 bool "Bootloader kernel arguments if available"
2806 endchoice
2807
2808 endmenu
2809
2810 config LOCKDEP_SUPPORT
2811 bool
2812 default y
2813
2814 config STACKTRACE_SUPPORT
2815 bool
2816 default y
2817
2818 config HAVE_LATENCYTOP_SUPPORT
2819 bool
2820 default y
2821
2822 config PGTABLE_LEVELS
2823 int
2824 default 3 if 64BIT && !PAGE_SIZE_64KB
2825 default 2
2826
2827 source "init/Kconfig"
2828
2829 source "kernel/Kconfig.freezer"
2830
2831 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2832
2833 config HW_HAS_EISA
2834 bool
2835 config HW_HAS_PCI
2836 bool
2837
2838 config PCI
2839 bool "Support for PCI controller"
2840 depends on HW_HAS_PCI
2841 select PCI_DOMAINS
2842 select NO_GENERIC_PCI_IOPORT_MAP
2843 help
2844 Find out whether you have a PCI motherboard. PCI is the name of a
2845 bus system, i.e. the way the CPU talks to the other stuff inside
2846 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2847 say Y, otherwise N.
2848
2849 config HT_PCI
2850 bool "Support for HT-linked PCI"
2851 default y
2852 depends on CPU_LOONGSON3
2853 select PCI
2854 select PCI_DOMAINS
2855 help
2856 Loongson family machines use Hyper-Transport bus for inter-core
2857 connection and device connection. The PCI bus is a subordinate
2858 linked at HT. Choose Y for Loongson-3 based machines.
2859
2860 config PCI_DOMAINS
2861 bool
2862
2863 source "drivers/pci/Kconfig"
2864
2865 source "drivers/pci/pcie/Kconfig"
2866
2867 #
2868 # ISA support is now enabled via select. Too many systems still have the one
2869 # or other ISA chip on the board that users don't know about so don't expect
2870 # users to choose the right thing ...
2871 #
2872 config ISA
2873 bool
2874
2875 config EISA
2876 bool "EISA support"
2877 depends on HW_HAS_EISA
2878 select ISA
2879 select GENERIC_ISA_DMA
2880 ---help---
2881 The Extended Industry Standard Architecture (EISA) bus was
2882 developed as an open alternative to the IBM MicroChannel bus.
2883
2884 The EISA bus provided some of the features of the IBM MicroChannel
2885 bus while maintaining backward compatibility with cards made for
2886 the older ISA bus. The EISA bus saw limited use between 1988 and
2887 1995 when it was made obsolete by the PCI bus.
2888
2889 Say Y here if you are building a kernel for an EISA-based machine.
2890
2891 Otherwise, say N.
2892
2893 source "drivers/eisa/Kconfig"
2894
2895 config TC
2896 bool "TURBOchannel support"
2897 depends on MACH_DECSTATION
2898 help
2899 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2900 processors. TURBOchannel programming specifications are available
2901 at:
2902 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2903 and:
2904 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2905 Linux driver support status is documented at:
2906 <http://www.linux-mips.org/wiki/DECstation>
2907
2908 config MMU
2909 bool
2910 default y
2911
2912 config I8253
2913 bool
2914 select CLKSRC_I8253
2915 select CLKEVT_I8253
2916 select MIPS_EXTERNAL_TIMER
2917
2918 config ZONE_DMA
2919 bool
2920
2921 config ZONE_DMA32
2922 bool
2923
2924 source "drivers/pcmcia/Kconfig"
2925
2926 source "drivers/pci/hotplug/Kconfig"
2927
2928 config RAPIDIO
2929 tristate "RapidIO support"
2930 depends on PCI
2931 default n
2932 help
2933 If you say Y here, the kernel will include drivers and
2934 infrastructure code to support RapidIO interconnect devices.
2935
2936 source "drivers/rapidio/Kconfig"
2937
2938 endmenu
2939
2940 menu "Executable file formats"
2941
2942 source "fs/Kconfig.binfmt"
2943
2944 config TRAD_SIGNALS
2945 bool
2946
2947 config MIPS32_COMPAT
2948 bool
2949
2950 config COMPAT
2951 bool
2952
2953 config SYSVIPC_COMPAT
2954 bool
2955
2956 config MIPS32_O32
2957 bool "Kernel support for o32 binaries"
2958 depends on 64BIT
2959 select ARCH_WANT_OLD_COMPAT_IPC
2960 select COMPAT
2961 select MIPS32_COMPAT
2962 select SYSVIPC_COMPAT if SYSVIPC
2963 help
2964 Select this option if you want to run o32 binaries. These are pure
2965 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2966 existing binaries are in this format.
2967
2968 If unsure, say Y.
2969
2970 config MIPS32_N32
2971 bool "Kernel support for n32 binaries"
2972 depends on 64BIT
2973 select COMPAT
2974 select MIPS32_COMPAT
2975 select SYSVIPC_COMPAT if SYSVIPC
2976 help
2977 Select this option if you want to run n32 binaries. These are
2978 64-bit binaries using 32-bit quantities for addressing and certain
2979 data that would normally be 64-bit. They are used in special
2980 cases.
2981
2982 If unsure, say N.
2983
2984 config BINFMT_ELF32
2985 bool
2986 default y if MIPS32_O32 || MIPS32_N32
2987
2988 endmenu
2989
2990 menu "Power management options"
2991
2992 config ARCH_HIBERNATION_POSSIBLE
2993 def_bool y
2994 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2995
2996 config ARCH_SUSPEND_POSSIBLE
2997 def_bool y
2998 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2999
3000 source "kernel/power/Kconfig"
3001
3002 endmenu
3003
3004 config MIPS_EXTERNAL_TIMER
3005 bool
3006
3007 menu "CPU Power Management"
3008
3009 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3010 source "drivers/cpufreq/Kconfig"
3011 endif
3012
3013 source "drivers/cpuidle/Kconfig"
3014
3015 endmenu
3016
3017 source "net/Kconfig"
3018
3019 source "drivers/Kconfig"
3020
3021 source "drivers/firmware/Kconfig"
3022
3023 source "fs/Kconfig"
3024
3025 source "arch/mips/Kconfig.debug"
3026
3027 source "security/Kconfig"
3028
3029 source "crypto/Kconfig"
3030
3031 source "lib/Kconfig"
3032
3033 source "arch/mips/kvm/Kconfig"
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