Version:  2.0.40 2.2.26 2.4.37 2.6.39 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15

Linux/arch/mips/Kconfig

  1 config MIPS
  2         bool
  3         default y
  4         select ARCH_MIGHT_HAVE_PC_PARPORT
  5         select ARCH_MIGHT_HAVE_PC_SERIO
  6         select HAVE_CONTEXT_TRACKING
  7         select HAVE_GENERIC_DMA_COHERENT
  8         select HAVE_IDE
  9         select HAVE_OPROFILE
 10         select HAVE_PERF_EVENTS
 11         select PERF_USE_VMALLOC
 12         select HAVE_ARCH_KGDB
 13         select HAVE_ARCH_SECCOMP_FILTER
 14         select HAVE_ARCH_TRACEHOOK
 15         select ARCH_HAVE_CUSTOM_GPIO_H
 16         select HAVE_FUNCTION_TRACER
 17         select HAVE_FUNCTION_TRACE_MCOUNT_TEST
 18         select HAVE_DYNAMIC_FTRACE
 19         select HAVE_FTRACE_MCOUNT_RECORD
 20         select HAVE_C_RECORDMCOUNT
 21         select HAVE_FUNCTION_GRAPH_TRACER
 22         select HAVE_KPROBES
 23         select HAVE_KRETPROBES
 24         select HAVE_DEBUG_KMEMLEAK
 25         select HAVE_SYSCALL_TRACEPOINTS
 26         select ARCH_BINFMT_ELF_RANDOMIZE_PIE
 27         select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
 28         select RTC_LIB if !MACH_LOONGSON
 29         select GENERIC_ATOMIC64 if !64BIT
 30         select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 31         select HAVE_DMA_ATTRS
 32         select HAVE_DMA_API_DEBUG
 33         select GENERIC_IRQ_PROBE
 34         select GENERIC_IRQ_SHOW
 35         select GENERIC_PCI_IOMAP
 36         select HAVE_ARCH_JUMP_LABEL
 37         select ARCH_WANT_IPC_PARSE_VERSION
 38         select IRQ_FORCED_THREADING
 39         select HAVE_MEMBLOCK
 40         select HAVE_MEMBLOCK_NODE_MAP
 41         select ARCH_DISCARD_MEMBLOCK
 42         select GENERIC_SMP_IDLE_THREAD
 43         select BUILDTIME_EXTABLE_SORT
 44         select GENERIC_CLOCKEVENTS
 45         select GENERIC_CMOS_UPDATE
 46         select HAVE_MOD_ARCH_SPECIFIC
 47         select VIRT_TO_BUS
 48         select MODULES_USE_ELF_REL if MODULES
 49         select MODULES_USE_ELF_RELA if MODULES && 64BIT
 50         select CLONE_BACKWARDS
 51         select HAVE_DEBUG_STACKOVERFLOW
 52         select HAVE_CC_STACKPROTECTOR
 53 
 54 menu "Machine selection"
 55 
 56 choice
 57         prompt "System type"
 58         default SGI_IP22
 59 
 60 config MIPS_ALCHEMY
 61         bool "Alchemy processor based machines"
 62         select 64BIT_PHYS_ADDR
 63         select CEVT_R4K
 64         select CSRC_R4K
 65         select IRQ_CPU
 66         select DMA_MAYBE_COHERENT       # Au1000,1500,1100 aren't, rest is
 67         select SYS_HAS_CPU_MIPS32_R1
 68         select SYS_SUPPORTS_32BIT_KERNEL
 69         select SYS_SUPPORTS_APM_EMULATION
 70         select ARCH_REQUIRE_GPIOLIB
 71         select SYS_SUPPORTS_ZBOOT
 72 
 73 config AR7
 74         bool "Texas Instruments AR7"
 75         select BOOT_ELF32
 76         select DMA_NONCOHERENT
 77         select CEVT_R4K
 78         select CSRC_R4K
 79         select IRQ_CPU
 80         select NO_EXCEPT_FILL
 81         select SWAP_IO_SPACE
 82         select SYS_HAS_CPU_MIPS32_R1
 83         select SYS_HAS_EARLY_PRINTK
 84         select SYS_SUPPORTS_32BIT_KERNEL
 85         select SYS_SUPPORTS_LITTLE_ENDIAN
 86         select SYS_SUPPORTS_ZBOOT_UART16550
 87         select ARCH_REQUIRE_GPIOLIB
 88         select VLYNQ
 89         select HAVE_CLK
 90         help
 91           Support for the Texas Instruments AR7 System-on-a-Chip
 92           family: TNETD7100, 7200 and 7300.
 93 
 94 config ATH79
 95         bool "Atheros AR71XX/AR724X/AR913X based boards"
 96         select ARCH_REQUIRE_GPIOLIB
 97         select BOOT_RAW
 98         select CEVT_R4K
 99         select CSRC_R4K
100         select DMA_NONCOHERENT
101         select HAVE_CLK
102         select CLKDEV_LOOKUP
103         select IRQ_CPU
104         select MIPS_MACHINE
105         select SYS_HAS_CPU_MIPS32_R2
106         select SYS_HAS_EARLY_PRINTK
107         select SYS_SUPPORTS_32BIT_KERNEL
108         select SYS_SUPPORTS_BIG_ENDIAN
109         help
110           Support for the Atheros AR71XX/AR724X/AR913X SoCs.
111 
112 config BCM47XX
113         bool "Broadcom BCM47XX based boards"
114         select ARCH_WANT_OPTIONAL_GPIOLIB
115         select BOOT_RAW
116         select CEVT_R4K
117         select CSRC_R4K
118         select DMA_NONCOHERENT
119         select HW_HAS_PCI
120         select IRQ_CPU
121         select SYS_HAS_CPU_MIPS32_R1
122         select NO_EXCEPT_FILL
123         select SYS_SUPPORTS_32BIT_KERNEL
124         select SYS_SUPPORTS_LITTLE_ENDIAN
125         select SYS_HAS_EARLY_PRINTK
126         select USE_GENERIC_EARLY_PRINTK_8250
127         help
128          Support for BCM47XX based boards
129 
130 config BCM63XX
131         bool "Broadcom BCM63XX based boards"
132         select BOOT_RAW
133         select CEVT_R4K
134         select CSRC_R4K
135         select DMA_NONCOHERENT
136         select IRQ_CPU
137         select SYS_SUPPORTS_32BIT_KERNEL
138         select SYS_SUPPORTS_BIG_ENDIAN
139         select SYS_HAS_EARLY_PRINTK
140         select SWAP_IO_SPACE
141         select ARCH_REQUIRE_GPIOLIB
142         select HAVE_CLK
143         select MIPS_L1_CACHE_SHIFT_4
144         help
145          Support for BCM63XX based boards
146 
147 config MIPS_COBALT
148         bool "Cobalt Server"
149         select CEVT_R4K
150         select CSRC_R4K
151         select CEVT_GT641XX
152         select DMA_NONCOHERENT
153         select HW_HAS_PCI
154         select I8253
155         select I8259
156         select IRQ_CPU
157         select IRQ_GT641XX
158         select PCI_GT64XXX_PCI0
159         select PCI
160         select SYS_HAS_CPU_NEVADA
161         select SYS_HAS_EARLY_PRINTK
162         select SYS_SUPPORTS_32BIT_KERNEL
163         select SYS_SUPPORTS_64BIT_KERNEL
164         select SYS_SUPPORTS_LITTLE_ENDIAN
165         select USE_GENERIC_EARLY_PRINTK_8250
166 
167 config MACH_DECSTATION
168         bool "DECstations"
169         select BOOT_ELF32
170         select CEVT_DS1287
171         select CEVT_R4K
172         select CSRC_IOASIC
173         select CSRC_R4K
174         select CPU_DADDI_WORKAROUNDS if 64BIT
175         select CPU_R4000_WORKAROUNDS if 64BIT
176         select CPU_R4400_WORKAROUNDS if 64BIT
177         select DMA_NONCOHERENT
178         select NO_IOPORT_MAP
179         select IRQ_CPU
180         select SYS_HAS_CPU_R3000
181         select SYS_HAS_CPU_R4X00
182         select SYS_SUPPORTS_32BIT_KERNEL
183         select SYS_SUPPORTS_64BIT_KERNEL
184         select SYS_SUPPORTS_LITTLE_ENDIAN
185         select SYS_SUPPORTS_128HZ
186         select SYS_SUPPORTS_256HZ
187         select SYS_SUPPORTS_1024HZ
188         select MIPS_L1_CACHE_SHIFT_4
189         help
190           This enables support for DEC's MIPS based workstations.  For details
191           see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
192           DECstation porting pages on <http://decstation.unix-ag.org/>.
193 
194           If you have one of the following DECstation Models you definitely
195           want to choose R4xx0 for the CPU Type:
196 
197                 DECstation 5000/50
198                 DECstation 5000/150
199                 DECstation 5000/260
200                 DECsystem 5900/260
201 
202           otherwise choose R3000.
203 
204 config MACH_JAZZ
205         bool "Jazz family of machines"
206         select FW_ARC
207         select FW_ARC32
208         select ARCH_MAY_HAVE_PC_FDC
209         select CEVT_R4K
210         select CSRC_R4K
211         select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
212         select GENERIC_ISA_DMA
213         select HAVE_PCSPKR_PLATFORM
214         select IRQ_CPU
215         select I8253
216         select I8259
217         select ISA
218         select SYS_HAS_CPU_R4X00
219         select SYS_SUPPORTS_32BIT_KERNEL
220         select SYS_SUPPORTS_64BIT_KERNEL
221         select SYS_SUPPORTS_100HZ
222         help
223          This a family of machines based on the MIPS R4030 chipset which was
224          used by several vendors to build RISC/os and Windows NT workstations.
225          Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
226          Olivetti M700-10 workstations.
227 
228 config MACH_JZ4740
229         bool "Ingenic JZ4740 based machines"
230         select SYS_HAS_CPU_MIPS32_R1
231         select SYS_SUPPORTS_32BIT_KERNEL
232         select SYS_SUPPORTS_LITTLE_ENDIAN
233         select SYS_SUPPORTS_ZBOOT_UART16550
234         select DMA_NONCOHERENT
235         select IRQ_CPU
236         select ARCH_REQUIRE_GPIOLIB
237         select SYS_HAS_EARLY_PRINTK
238         select HAVE_CLK
239         select GENERIC_IRQ_CHIP
240 
241 config LANTIQ
242         bool "Lantiq based platforms"
243         select DMA_NONCOHERENT
244         select IRQ_CPU
245         select CEVT_R4K
246         select CSRC_R4K
247         select SYS_HAS_CPU_MIPS32_R1
248         select SYS_HAS_CPU_MIPS32_R2
249         select SYS_SUPPORTS_BIG_ENDIAN
250         select SYS_SUPPORTS_32BIT_KERNEL
251         select SYS_SUPPORTS_MULTITHREADING
252         select SYS_HAS_EARLY_PRINTK
253         select ARCH_REQUIRE_GPIOLIB
254         select SWAP_IO_SPACE
255         select BOOT_RAW
256         select HAVE_MACH_CLKDEV
257         select CLKDEV_LOOKUP
258         select USE_OF
259         select PINCTRL
260         select PINCTRL_LANTIQ
261 
262 config LASAT
263         bool "LASAT Networks platforms"
264         select CEVT_R4K
265         select CSRC_R4K
266         select DMA_NONCOHERENT
267         select SYS_HAS_EARLY_PRINTK
268         select HW_HAS_PCI
269         select IRQ_CPU
270         select PCI_GT64XXX_PCI0
271         select MIPS_NILE4
272         select R5000_CPU_SCACHE
273         select SYS_HAS_CPU_R5000
274         select SYS_SUPPORTS_32BIT_KERNEL
275         select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
276         select SYS_SUPPORTS_LITTLE_ENDIAN
277 
278 config MACH_LOONGSON
279         bool "Loongson family of machines"
280         select SYS_SUPPORTS_ZBOOT
281         help
282           This enables the support of Loongson family of machines.
283 
284           Loongson is a family of general-purpose MIPS-compatible CPUs.
285           developed at Institute of Computing Technology (ICT),
286           Chinese Academy of Sciences (CAS) in the People's Republic
287           of China. The chief architect is Professor Weiwu Hu.
288 
289 config MACH_LOONGSON1
290         bool "Loongson 1 family of machines"
291         select SYS_SUPPORTS_ZBOOT
292         help
293           This enables support for the Loongson 1 based machines.
294 
295           Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
296           the ICT (Institute of Computing Technology) and the Chinese Academy
297           of Sciences.
298 
299 config MIPS_MALTA
300         bool "MIPS Malta board"
301         select ARCH_MAY_HAVE_PC_FDC
302         select BOOT_ELF32
303         select BOOT_RAW
304         select CEVT_R4K
305         select CSRC_R4K
306         select CSRC_GIC
307         select DMA_MAYBE_COHERENT
308         select GENERIC_ISA_DMA
309         select HAVE_PCSPKR_PLATFORM
310         select IRQ_CPU
311         select IRQ_GIC
312         select HW_HAS_PCI
313         select I8253
314         select I8259
315         select MIPS_BONITO64
316         select MIPS_CPU_SCACHE
317         select PCI_GT64XXX_PCI0
318         select MIPS_MSC
319         select SWAP_IO_SPACE
320         select SYS_HAS_CPU_MIPS32_R1
321         select SYS_HAS_CPU_MIPS32_R2
322         select SYS_HAS_CPU_MIPS32_R3_5
323         select SYS_HAS_CPU_MIPS64_R1
324         select SYS_HAS_CPU_MIPS64_R2
325         select SYS_HAS_CPU_NEVADA
326         select SYS_HAS_CPU_RM7000
327         select SYS_SUPPORTS_32BIT_KERNEL
328         select SYS_SUPPORTS_64BIT_KERNEL
329         select SYS_SUPPORTS_BIG_ENDIAN
330         select SYS_SUPPORTS_LITTLE_ENDIAN
331         select SYS_SUPPORTS_MIPS_CMP
332         select SYS_SUPPORTS_MIPS_CPS
333         select SYS_SUPPORTS_MULTITHREADING
334         select SYS_SUPPORTS_SMARTMIPS
335         select SYS_SUPPORTS_ZBOOT
336         help
337           This enables support for the MIPS Technologies Malta evaluation
338           board.
339 
340 config MIPS_SEAD3
341         bool "MIPS SEAD3 board"
342         select BOOT_ELF32
343         select BOOT_RAW
344         select CEVT_R4K
345         select CSRC_R4K
346         select CSRC_GIC
347         select CPU_MIPSR2_IRQ_VI
348         select CPU_MIPSR2_IRQ_EI
349         select DMA_NONCOHERENT
350         select IRQ_CPU
351         select IRQ_GIC
352         select LIBFDT
353         select MIPS_MSC
354         select SYS_HAS_CPU_MIPS32_R1
355         select SYS_HAS_CPU_MIPS32_R2
356         select SYS_HAS_CPU_MIPS64_R1
357         select SYS_HAS_EARLY_PRINTK
358         select SYS_SUPPORTS_32BIT_KERNEL
359         select SYS_SUPPORTS_64BIT_KERNEL
360         select SYS_SUPPORTS_BIG_ENDIAN
361         select SYS_SUPPORTS_LITTLE_ENDIAN
362         select SYS_SUPPORTS_SMARTMIPS
363         select SYS_SUPPORTS_MICROMIPS
364         select USB_EHCI_BIG_ENDIAN_DESC
365         select USB_EHCI_BIG_ENDIAN_MMIO
366         select USE_OF
367         help
368           This enables support for the MIPS Technologies SEAD3 evaluation
369           board.
370 
371 config NEC_MARKEINS
372         bool "NEC EMMA2RH Mark-eins board"
373         select SOC_EMMA2RH
374         select HW_HAS_PCI
375         help
376           This enables support for the NEC Electronics Mark-eins boards.
377 
378 config MACH_VR41XX
379         bool "NEC VR4100 series based machines"
380         select CEVT_R4K
381         select CSRC_R4K
382         select SYS_HAS_CPU_VR41XX
383         select ARCH_REQUIRE_GPIOLIB
384 
385 config NXP_STB220
386         bool "NXP STB220 board"
387         select SOC_PNX833X
388         help
389          Support for NXP Semiconductors STB220 Development Board.
390 
391 config NXP_STB225
392         bool "NXP 225 board"
393         select SOC_PNX833X
394         select SOC_PNX8335
395         help
396          Support for NXP Semiconductors STB225 Development Board.
397 
398 config PMC_MSP
399         bool "PMC-Sierra MSP chipsets"
400         select CEVT_R4K
401         select CSRC_R4K
402         select DMA_NONCOHERENT
403         select SWAP_IO_SPACE
404         select NO_EXCEPT_FILL
405         select BOOT_RAW
406         select SYS_HAS_CPU_MIPS32_R1
407         select SYS_HAS_CPU_MIPS32_R2
408         select SYS_SUPPORTS_32BIT_KERNEL
409         select SYS_SUPPORTS_BIG_ENDIAN
410         select IRQ_CPU
411         select SERIAL_8250
412         select SERIAL_8250_CONSOLE
413         select USB_EHCI_BIG_ENDIAN_MMIO
414         select USB_EHCI_BIG_ENDIAN_DESC
415         help
416           This adds support for the PMC-Sierra family of Multi-Service
417           Processor System-On-A-Chips.  These parts include a number
418           of integrated peripherals, interfaces and DSPs in addition to
419           a variety of MIPS cores.
420 
421 config RALINK
422         bool "Ralink based machines"
423         select CEVT_R4K
424         select CSRC_R4K
425         select BOOT_RAW
426         select DMA_NONCOHERENT
427         select IRQ_CPU
428         select USE_OF
429         select SYS_HAS_CPU_MIPS32_R1
430         select SYS_HAS_CPU_MIPS32_R2
431         select SYS_SUPPORTS_32BIT_KERNEL
432         select SYS_SUPPORTS_LITTLE_ENDIAN
433         select SYS_HAS_EARLY_PRINTK
434         select HAVE_MACH_CLKDEV
435         select CLKDEV_LOOKUP
436         select ARCH_HAS_RESET_CONTROLLER
437         select RESET_CONTROLLER
438 
439 config SGI_IP22
440         bool "SGI IP22 (Indy/Indigo2)"
441         select FW_ARC
442         select FW_ARC32
443         select BOOT_ELF32
444         select CEVT_R4K
445         select CSRC_R4K
446         select DEFAULT_SGI_PARTITION
447         select DMA_NONCOHERENT
448         select HW_HAS_EISA
449         select I8253
450         select I8259
451         select IP22_CPU_SCACHE
452         select IRQ_CPU
453         select GENERIC_ISA_DMA_SUPPORT_BROKEN
454         select SGI_HAS_I8042
455         select SGI_HAS_INDYDOG
456         select SGI_HAS_HAL2
457         select SGI_HAS_SEEQ
458         select SGI_HAS_WD93
459         select SGI_HAS_ZILOG
460         select SWAP_IO_SPACE
461         select SYS_HAS_CPU_R4X00
462         select SYS_HAS_CPU_R5000
463         #
464         # Disable EARLY_PRINTK for now since it leads to overwritten prom
465         # memory during early boot on some machines.
466         #
467         # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
468         # for a more details discussion
469         #
470         # select SYS_HAS_EARLY_PRINTK
471         select SYS_SUPPORTS_32BIT_KERNEL
472         select SYS_SUPPORTS_64BIT_KERNEL
473         select SYS_SUPPORTS_BIG_ENDIAN
474         select MIPS_L1_CACHE_SHIFT_7
475         help
476           This are the SGI Indy, Challenge S and Indigo2, as well as certain
477           OEM variants like the Tandem CMN B006S. To compile a Linux kernel
478           that runs on these, say Y here.
479 
480 config SGI_IP27
481         bool "SGI IP27 (Origin200/2000)"
482         select FW_ARC
483         select FW_ARC64
484         select BOOT_ELF64
485         select DEFAULT_SGI_PARTITION
486         select DMA_COHERENT
487         select SYS_HAS_EARLY_PRINTK
488         select HW_HAS_PCI
489         select NR_CPUS_DEFAULT_64
490         select SYS_HAS_CPU_R10000
491         select SYS_SUPPORTS_64BIT_KERNEL
492         select SYS_SUPPORTS_BIG_ENDIAN
493         select SYS_SUPPORTS_NUMA
494         select SYS_SUPPORTS_SMP
495         select MIPS_L1_CACHE_SHIFT_7
496         help
497           This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
498           workstations.  To compile a Linux kernel that runs on these, say Y
499           here.
500 
501 config SGI_IP28
502         bool "SGI IP28 (Indigo2 R10k)"
503         select FW_ARC
504         select FW_ARC64
505         select BOOT_ELF64
506         select CEVT_R4K
507         select CSRC_R4K
508         select DEFAULT_SGI_PARTITION
509         select DMA_NONCOHERENT
510         select GENERIC_ISA_DMA_SUPPORT_BROKEN
511         select IRQ_CPU
512         select HW_HAS_EISA
513         select I8253
514         select I8259
515         select SGI_HAS_I8042
516         select SGI_HAS_INDYDOG
517         select SGI_HAS_HAL2
518         select SGI_HAS_SEEQ
519         select SGI_HAS_WD93
520         select SGI_HAS_ZILOG
521         select SWAP_IO_SPACE
522         select SYS_HAS_CPU_R10000
523         #
524         # Disable EARLY_PRINTK for now since it leads to overwritten prom
525         # memory during early boot on some machines.
526         #
527         # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
528         # for a more details discussion
529         #
530         # select SYS_HAS_EARLY_PRINTK
531         select SYS_SUPPORTS_64BIT_KERNEL
532         select SYS_SUPPORTS_BIG_ENDIAN
533       help
534         This is the SGI Indigo2 with R10000 processor.  To compile a Linux
535         kernel that runs on these, say Y here.
536 
537 config SGI_IP32
538         bool "SGI IP32 (O2)"
539         select FW_ARC
540         select FW_ARC32
541         select BOOT_ELF32
542         select CEVT_R4K
543         select CSRC_R4K
544         select DMA_NONCOHERENT
545         select HW_HAS_PCI
546         select IRQ_CPU
547         select R5000_CPU_SCACHE
548         select RM7000_CPU_SCACHE
549         select SYS_HAS_CPU_R5000
550         select SYS_HAS_CPU_R10000 if BROKEN
551         select SYS_HAS_CPU_RM7000
552         select SYS_HAS_CPU_NEVADA
553         select SYS_SUPPORTS_64BIT_KERNEL
554         select SYS_SUPPORTS_BIG_ENDIAN
555         help
556           If you want this kernel to run on SGI O2 workstation, say Y here.
557 
558 config SIBYTE_CRHINE
559         bool "Sibyte BCM91120C-CRhine"
560         select BOOT_ELF32
561         select DMA_COHERENT
562         select SIBYTE_BCM1120
563         select SWAP_IO_SPACE
564         select SYS_HAS_CPU_SB1
565         select SYS_SUPPORTS_BIG_ENDIAN
566         select SYS_SUPPORTS_LITTLE_ENDIAN
567 
568 config SIBYTE_CARMEL
569         bool "Sibyte BCM91120x-Carmel"
570         select BOOT_ELF32
571         select DMA_COHERENT
572         select SIBYTE_BCM1120
573         select SWAP_IO_SPACE
574         select SYS_HAS_CPU_SB1
575         select SYS_SUPPORTS_BIG_ENDIAN
576         select SYS_SUPPORTS_LITTLE_ENDIAN
577 
578 config SIBYTE_CRHONE
579         bool "Sibyte BCM91125C-CRhone"
580         select BOOT_ELF32
581         select DMA_COHERENT
582         select SIBYTE_BCM1125
583         select SWAP_IO_SPACE
584         select SYS_HAS_CPU_SB1
585         select SYS_SUPPORTS_BIG_ENDIAN
586         select SYS_SUPPORTS_HIGHMEM
587         select SYS_SUPPORTS_LITTLE_ENDIAN
588 
589 config SIBYTE_RHONE
590         bool "Sibyte BCM91125E-Rhone"
591         select BOOT_ELF32
592         select DMA_COHERENT
593         select SIBYTE_BCM1125H
594         select SWAP_IO_SPACE
595         select SYS_HAS_CPU_SB1
596         select SYS_SUPPORTS_BIG_ENDIAN
597         select SYS_SUPPORTS_LITTLE_ENDIAN
598 
599 config SIBYTE_SWARM
600         bool "Sibyte BCM91250A-SWARM"
601         select BOOT_ELF32
602         select DMA_COHERENT
603         select HAVE_PATA_PLATFORM
604         select SIBYTE_SB1250
605         select SWAP_IO_SPACE
606         select SYS_HAS_CPU_SB1
607         select SYS_SUPPORTS_BIG_ENDIAN
608         select SYS_SUPPORTS_HIGHMEM
609         select SYS_SUPPORTS_LITTLE_ENDIAN
610         select ZONE_DMA32 if 64BIT
611 
612 config SIBYTE_LITTLESUR
613         bool "Sibyte BCM91250C2-LittleSur"
614         select BOOT_ELF32
615         select DMA_COHERENT
616         select HAVE_PATA_PLATFORM
617         select SIBYTE_SB1250
618         select SWAP_IO_SPACE
619         select SYS_HAS_CPU_SB1
620         select SYS_SUPPORTS_BIG_ENDIAN
621         select SYS_SUPPORTS_HIGHMEM
622         select SYS_SUPPORTS_LITTLE_ENDIAN
623 
624 config SIBYTE_SENTOSA
625         bool "Sibyte BCM91250E-Sentosa"
626         select BOOT_ELF32
627         select DMA_COHERENT
628         select SIBYTE_SB1250
629         select SWAP_IO_SPACE
630         select SYS_HAS_CPU_SB1
631         select SYS_SUPPORTS_BIG_ENDIAN
632         select SYS_SUPPORTS_LITTLE_ENDIAN
633 
634 config SIBYTE_BIGSUR
635         bool "Sibyte BCM91480B-BigSur"
636         select BOOT_ELF32
637         select DMA_COHERENT
638         select NR_CPUS_DEFAULT_4
639         select SIBYTE_BCM1x80
640         select SWAP_IO_SPACE
641         select SYS_HAS_CPU_SB1
642         select SYS_SUPPORTS_BIG_ENDIAN
643         select SYS_SUPPORTS_HIGHMEM
644         select SYS_SUPPORTS_LITTLE_ENDIAN
645         select ZONE_DMA32 if 64BIT
646 
647 config SNI_RM
648         bool "SNI RM200/300/400"
649         select FW_ARC if CPU_LITTLE_ENDIAN
650         select FW_ARC32 if CPU_LITTLE_ENDIAN
651         select FW_SNIPROM if CPU_BIG_ENDIAN
652         select ARCH_MAY_HAVE_PC_FDC
653         select BOOT_ELF32
654         select CEVT_R4K
655         select CSRC_R4K
656         select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
657         select DMA_NONCOHERENT
658         select GENERIC_ISA_DMA
659         select HAVE_PCSPKR_PLATFORM
660         select HW_HAS_EISA
661         select HW_HAS_PCI
662         select IRQ_CPU
663         select I8253
664         select I8259
665         select ISA
666         select SWAP_IO_SPACE if CPU_BIG_ENDIAN
667         select SYS_HAS_CPU_R4X00
668         select SYS_HAS_CPU_R5000
669         select SYS_HAS_CPU_R10000
670         select R5000_CPU_SCACHE
671         select SYS_HAS_EARLY_PRINTK
672         select SYS_SUPPORTS_32BIT_KERNEL
673         select SYS_SUPPORTS_64BIT_KERNEL
674         select SYS_SUPPORTS_BIG_ENDIAN
675         select SYS_SUPPORTS_HIGHMEM
676         select SYS_SUPPORTS_LITTLE_ENDIAN
677         select USE_GENERIC_EARLY_PRINTK_8250
678         help
679           The SNI RM200/300/400 are MIPS-based machines manufactured by
680           Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
681           Technology and now in turn merged with Fujitsu.  Say Y here to
682           support this machine type.
683 
684 config MACH_TX39XX
685         bool "Toshiba TX39 series based machines"
686 
687 config MACH_TX49XX
688         bool "Toshiba TX49 series based machines"
689 
690 config MIKROTIK_RB532
691         bool "Mikrotik RB532 boards"
692         select CEVT_R4K
693         select CSRC_R4K
694         select DMA_NONCOHERENT
695         select HW_HAS_PCI
696         select IRQ_CPU
697         select SYS_HAS_CPU_MIPS32_R1
698         select SYS_SUPPORTS_32BIT_KERNEL
699         select SYS_SUPPORTS_LITTLE_ENDIAN
700         select SWAP_IO_SPACE
701         select BOOT_RAW
702         select ARCH_REQUIRE_GPIOLIB
703         select MIPS_L1_CACHE_SHIFT_4
704         help
705           Support the Mikrotik(tm) RouterBoard 532 series,
706           based on the IDT RC32434 SoC.
707 
708 config CAVIUM_OCTEON_SOC
709         bool "Cavium Networks Octeon SoC based boards"
710         select CEVT_R4K
711         select 64BIT_PHYS_ADDR
712         select DMA_COHERENT
713         select SYS_SUPPORTS_64BIT_KERNEL
714         select SYS_SUPPORTS_BIG_ENDIAN
715         select EDAC_SUPPORT
716         select SYS_SUPPORTS_HOTPLUG_CPU
717         select SYS_HAS_EARLY_PRINTK
718         select SYS_HAS_CPU_CAVIUM_OCTEON
719         select SWAP_IO_SPACE
720         select HW_HAS_PCI
721         select ZONE_DMA32
722         select HOLES_IN_ZONE
723         select ARCH_REQUIRE_GPIOLIB
724         help
725           This option supports all of the Octeon reference boards from Cavium
726           Networks. It builds a kernel that dynamically determines the Octeon
727           CPU type and supports all known board reference implementations.
728           Some of the supported boards are:
729                 EBT3000
730                 EBH3000
731                 EBH3100
732                 Thunder
733                 Kodama
734                 Hikari
735           Say Y here for most Octeon reference boards.
736 
737 config NLM_XLR_BOARD
738         bool "Netlogic XLR/XLS based systems"
739         select BOOT_ELF32
740         select NLM_COMMON
741         select SYS_HAS_CPU_XLR
742         select SYS_SUPPORTS_SMP
743         select HW_HAS_PCI
744         select SWAP_IO_SPACE
745         select SYS_SUPPORTS_32BIT_KERNEL
746         select SYS_SUPPORTS_64BIT_KERNEL
747         select 64BIT_PHYS_ADDR
748         select SYS_SUPPORTS_BIG_ENDIAN
749         select SYS_SUPPORTS_HIGHMEM
750         select DMA_COHERENT
751         select NR_CPUS_DEFAULT_32
752         select CEVT_R4K
753         select CSRC_R4K
754         select IRQ_CPU
755         select ZONE_DMA32 if 64BIT
756         select SYNC_R4K
757         select SYS_HAS_EARLY_PRINTK
758         select SYS_SUPPORTS_ZBOOT
759         select SYS_SUPPORTS_ZBOOT_UART16550
760         help
761           Support for systems based on Netlogic XLR and XLS processors.
762           Say Y here if you have a XLR or XLS based board.
763 
764 config NLM_XLP_BOARD
765         bool "Netlogic XLP based systems"
766         select BOOT_ELF32
767         select NLM_COMMON
768         select SYS_HAS_CPU_XLP
769         select SYS_SUPPORTS_SMP
770         select HW_HAS_PCI
771         select SYS_SUPPORTS_32BIT_KERNEL
772         select SYS_SUPPORTS_64BIT_KERNEL
773         select 64BIT_PHYS_ADDR
774         select SYS_SUPPORTS_BIG_ENDIAN
775         select SYS_SUPPORTS_LITTLE_ENDIAN
776         select SYS_SUPPORTS_HIGHMEM
777         select DMA_COHERENT
778         select NR_CPUS_DEFAULT_32
779         select CEVT_R4K
780         select CSRC_R4K
781         select IRQ_CPU
782         select ZONE_DMA32 if 64BIT
783         select SYNC_R4K
784         select SYS_HAS_EARLY_PRINTK
785         select USE_OF
786         select SYS_SUPPORTS_ZBOOT
787         select SYS_SUPPORTS_ZBOOT_UART16550
788         help
789           This board is based on Netlogic XLP Processor.
790           Say Y here if you have a XLP based board.
791 
792 endchoice
793 
794 source "arch/mips/alchemy/Kconfig"
795 source "arch/mips/ath79/Kconfig"
796 source "arch/mips/bcm47xx/Kconfig"
797 source "arch/mips/bcm63xx/Kconfig"
798 source "arch/mips/jazz/Kconfig"
799 source "arch/mips/jz4740/Kconfig"
800 source "arch/mips/lantiq/Kconfig"
801 source "arch/mips/lasat/Kconfig"
802 source "arch/mips/pmcs-msp71xx/Kconfig"
803 source "arch/mips/ralink/Kconfig"
804 source "arch/mips/sgi-ip27/Kconfig"
805 source "arch/mips/sibyte/Kconfig"
806 source "arch/mips/txx9/Kconfig"
807 source "arch/mips/vr41xx/Kconfig"
808 source "arch/mips/cavium-octeon/Kconfig"
809 source "arch/mips/loongson/Kconfig"
810 source "arch/mips/loongson1/Kconfig"
811 source "arch/mips/netlogic/Kconfig"
812 
813 endmenu
814 
815 config RWSEM_GENERIC_SPINLOCK
816         bool
817         default y
818 
819 config RWSEM_XCHGADD_ALGORITHM
820         bool
821 
822 config ARCH_HAS_ILOG2_U32
823         bool
824         default n
825 
826 config ARCH_HAS_ILOG2_U64
827         bool
828         default n
829 
830 config GENERIC_HWEIGHT
831         bool
832         default y
833 
834 config GENERIC_CALIBRATE_DELAY
835         bool
836         default y
837 
838 config SCHED_OMIT_FRAME_POINTER
839         bool
840         default y
841 
842 #
843 # Select some configuration options automatically based on user selections.
844 #
845 config FW_ARC
846         bool
847 
848 config ARCH_MAY_HAVE_PC_FDC
849         bool
850 
851 config BOOT_RAW
852         bool
853 
854 config CEVT_BCM1480
855         bool
856 
857 config CEVT_DS1287
858         bool
859 
860 config CEVT_GT641XX
861         bool
862 
863 config CEVT_R4K
864         bool
865 
866 config CEVT_GIC
867         select MIPS_CM
868         bool
869 
870 config CEVT_SB1250
871         bool
872 
873 config CEVT_TXX9
874         bool
875 
876 config CSRC_BCM1480
877         bool
878 
879 config CSRC_IOASIC
880         bool
881 
882 config CSRC_R4K
883         bool
884 
885 config CSRC_GIC
886         select MIPS_CM
887         bool
888 
889 config CSRC_SB1250
890         bool
891 
892 config GPIO_TXX9
893         select ARCH_REQUIRE_GPIOLIB
894         bool
895 
896 config FW_CFE
897         bool
898 
899 config ARCH_DMA_ADDR_T_64BIT
900         def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
901 
902 config DMA_MAYBE_COHERENT
903         select DMA_NONCOHERENT
904         bool
905 
906 config DMA_COHERENT
907         bool
908 
909 config DMA_NONCOHERENT
910         bool
911         select NEED_DMA_MAP_STATE
912 
913 config NEED_DMA_MAP_STATE
914         bool
915 
916 config SYS_HAS_EARLY_PRINTK
917         bool
918 
919 config HOTPLUG_CPU
920         bool "Support for hot-pluggable CPUs"
921         depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
922         help
923           Say Y here to allow turning CPUs off and on. CPUs can be
924           controlled through /sys/devices/system/cpu.
925           (Note: power management support will enable this option
926             automatically on SMP systems. )
927           Say N if you want to disable CPU hotplug.
928 
929 config SYS_SUPPORTS_HOTPLUG_CPU
930         bool
931 
932 config I8259
933         bool
934 
935 config MIPS_BONITO64
936         bool
937 
938 config MIPS_MSC
939         bool
940 
941 config MIPS_NILE4
942         bool
943 
944 config SYNC_R4K
945         bool
946 
947 config MIPS_MACHINE
948         def_bool n
949 
950 config NO_IOPORT_MAP
951         def_bool n
952 
953 config GENERIC_ISA_DMA
954         bool
955         select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
956         select ISA_DMA_API
957 
958 config GENERIC_ISA_DMA_SUPPORT_BROKEN
959         bool
960         select GENERIC_ISA_DMA
961 
962 config ISA_DMA_API
963         bool
964 
965 config HOLES_IN_ZONE
966         bool
967 
968 #
969 # Endianness selection.  Sufficiently obscure so many users don't know what to
970 # answer,so we try hard to limit the available choices.  Also the use of a
971 # choice statement should be more obvious to the user.
972 #
973 choice
974         prompt "Endianness selection"
975         help
976           Some MIPS machines can be configured for either little or big endian
977           byte order. These modes require different kernels and a different
978           Linux distribution.  In general there is one preferred byteorder for a
979           particular system but some systems are just as commonly used in the
980           one or the other endianness.
981 
982 config CPU_BIG_ENDIAN
983         bool "Big endian"
984         depends on SYS_SUPPORTS_BIG_ENDIAN
985 
986 config CPU_LITTLE_ENDIAN
987         bool "Little endian"
988         depends on SYS_SUPPORTS_LITTLE_ENDIAN
989 
990 endchoice
991 
992 config EXPORT_UASM
993         bool
994 
995 config SYS_SUPPORTS_APM_EMULATION
996         bool
997 
998 config SYS_SUPPORTS_BIG_ENDIAN
999         bool
1000 
1001 config SYS_SUPPORTS_LITTLE_ENDIAN
1002         bool
1003 
1004 config SYS_SUPPORTS_HUGETLBFS
1005         bool
1006         depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1007         default y
1008 
1009 config MIPS_HUGE_TLB_SUPPORT
1010         def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1011 
1012 config IRQ_CPU
1013         bool
1014 
1015 config IRQ_CPU_RM7K
1016         bool
1017 
1018 config IRQ_MSP_SLP
1019         bool
1020 
1021 config IRQ_MSP_CIC
1022         bool
1023 
1024 config IRQ_TXX9
1025         bool
1026 
1027 config IRQ_GT641XX
1028         bool
1029 
1030 config IRQ_GIC
1031         select MIPS_CM
1032         bool
1033 
1034 config PCI_GT64XXX_PCI0
1035         bool
1036 
1037 config NO_EXCEPT_FILL
1038         bool
1039 
1040 config SOC_EMMA2RH
1041         bool
1042         select CEVT_R4K
1043         select CSRC_R4K
1044         select DMA_NONCOHERENT
1045         select IRQ_CPU
1046         select SWAP_IO_SPACE
1047         select SYS_HAS_CPU_R5500
1048         select SYS_SUPPORTS_32BIT_KERNEL
1049         select SYS_SUPPORTS_64BIT_KERNEL
1050         select SYS_SUPPORTS_BIG_ENDIAN
1051 
1052 config SOC_PNX833X
1053         bool
1054         select CEVT_R4K
1055         select CSRC_R4K
1056         select IRQ_CPU
1057         select DMA_NONCOHERENT
1058         select SYS_HAS_CPU_MIPS32_R2
1059         select SYS_SUPPORTS_32BIT_KERNEL
1060         select SYS_SUPPORTS_LITTLE_ENDIAN
1061         select SYS_SUPPORTS_BIG_ENDIAN
1062         select CPU_MIPSR2_IRQ_VI
1063 
1064 config SOC_PNX8335
1065         bool
1066         select SOC_PNX833X
1067 
1068 config SWAP_IO_SPACE
1069         bool
1070 
1071 config SGI_HAS_INDYDOG
1072         bool
1073 
1074 config SGI_HAS_HAL2
1075         bool
1076 
1077 config SGI_HAS_SEEQ
1078         bool
1079 
1080 config SGI_HAS_WD93
1081         bool
1082 
1083 config SGI_HAS_ZILOG
1084         bool
1085 
1086 config SGI_HAS_I8042
1087         bool
1088 
1089 config DEFAULT_SGI_PARTITION
1090         bool
1091 
1092 config FW_ARC32
1093         bool
1094 
1095 config FW_SNIPROM
1096         bool
1097 
1098 config BOOT_ELF32
1099         bool
1100 
1101 config MIPS_L1_CACHE_SHIFT_4
1102         bool
1103 
1104 config MIPS_L1_CACHE_SHIFT_5
1105         bool
1106 
1107 config MIPS_L1_CACHE_SHIFT_6
1108         bool
1109 
1110 config MIPS_L1_CACHE_SHIFT_7
1111         bool
1112 
1113 config MIPS_L1_CACHE_SHIFT
1114         int
1115         default "4" if MIPS_L1_CACHE_SHIFT_4
1116         default "5" if MIPS_L1_CACHE_SHIFT_5
1117         default "6" if MIPS_L1_CACHE_SHIFT_6
1118         default "7" if MIPS_L1_CACHE_SHIFT_7
1119         default "5"
1120 
1121 config HAVE_STD_PC_SERIAL_PORT
1122         bool
1123 
1124 config ARC_CONSOLE
1125         bool "ARC console support"
1126         depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1127 
1128 config ARC_MEMORY
1129         bool
1130         depends on MACH_JAZZ || SNI_RM || SGI_IP32
1131         default y
1132 
1133 config ARC_PROMLIB
1134         bool
1135         depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1136         default y
1137 
1138 config FW_ARC64
1139         bool
1140 
1141 config BOOT_ELF64
1142         bool
1143 
1144 menu "CPU selection"
1145 
1146 choice
1147         prompt "CPU type"
1148         default CPU_R4X00
1149 
1150 config CPU_LOONGSON3
1151         bool "Loongson 3 CPU"
1152         depends on SYS_HAS_CPU_LOONGSON3
1153         select CPU_SUPPORTS_64BIT_KERNEL
1154         select CPU_SUPPORTS_HIGHMEM
1155         select CPU_SUPPORTS_HUGEPAGES
1156         select WEAK_ORDERING
1157         select WEAK_REORDERING_BEYOND_LLSC
1158         help
1159                 The Loongson 3 processor implements the MIPS64R2 instruction
1160                 set with many extensions.
1161 
1162 config CPU_LOONGSON2E
1163         bool "Loongson 2E"
1164         depends on SYS_HAS_CPU_LOONGSON2E
1165         select CPU_LOONGSON2
1166         help
1167           The Loongson 2E processor implements the MIPS III instruction set
1168           with many extensions.
1169 
1170           It has an internal FPGA northbridge, which is compatible to
1171           bonito64.
1172 
1173 config CPU_LOONGSON2F
1174         bool "Loongson 2F"
1175         depends on SYS_HAS_CPU_LOONGSON2F
1176         select CPU_LOONGSON2
1177         select ARCH_REQUIRE_GPIOLIB
1178         help
1179           The Loongson 2F processor implements the MIPS III instruction set
1180           with many extensions.
1181 
1182           Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1183           have a similar programming interface with FPGA northbridge used in
1184           Loongson2E.
1185 
1186 config CPU_LOONGSON1B
1187         bool "Loongson 1B"
1188         depends on SYS_HAS_CPU_LOONGSON1B
1189         select CPU_LOONGSON1
1190         help
1191           The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1192           release 2 instruction set.
1193 
1194 config CPU_MIPS32_R1
1195         bool "MIPS32 Release 1"
1196         depends on SYS_HAS_CPU_MIPS32_R1
1197         select CPU_HAS_PREFETCH
1198         select CPU_SUPPORTS_32BIT_KERNEL
1199         select CPU_SUPPORTS_HIGHMEM
1200         help
1201           Choose this option to build a kernel for release 1 or later of the
1202           MIPS32 architecture.  Most modern embedded systems with a 32-bit
1203           MIPS processor are based on a MIPS32 processor.  If you know the
1204           specific type of processor in your system, choose those that one
1205           otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1206           Release 2 of the MIPS32 architecture is available since several
1207           years so chances are you even have a MIPS32 Release 2 processor
1208           in which case you should choose CPU_MIPS32_R2 instead for better
1209           performance.
1210 
1211 config CPU_MIPS32_R2
1212         bool "MIPS32 Release 2"
1213         depends on SYS_HAS_CPU_MIPS32_R2
1214         select CPU_HAS_PREFETCH
1215         select CPU_SUPPORTS_32BIT_KERNEL
1216         select CPU_SUPPORTS_HIGHMEM
1217         select CPU_SUPPORTS_MSA
1218         select HAVE_KVM
1219         help
1220           Choose this option to build a kernel for release 2 or later of the
1221           MIPS32 architecture.  Most modern embedded systems with a 32-bit
1222           MIPS processor are based on a MIPS32 processor.  If you know the
1223           specific type of processor in your system, choose those that one
1224           otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1225 
1226 config CPU_MIPS64_R1
1227         bool "MIPS64 Release 1"
1228         depends on SYS_HAS_CPU_MIPS64_R1
1229         select CPU_HAS_PREFETCH
1230         select CPU_SUPPORTS_32BIT_KERNEL
1231         select CPU_SUPPORTS_64BIT_KERNEL
1232         select CPU_SUPPORTS_HIGHMEM
1233         select CPU_SUPPORTS_HUGEPAGES
1234         help
1235           Choose this option to build a kernel for release 1 or later of the
1236           MIPS64 architecture.  Many modern embedded systems with a 64-bit
1237           MIPS processor are based on a MIPS64 processor.  If you know the
1238           specific type of processor in your system, choose those that one
1239           otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1240           Release 2 of the MIPS64 architecture is available since several
1241           years so chances are you even have a MIPS64 Release 2 processor
1242           in which case you should choose CPU_MIPS64_R2 instead for better
1243           performance.
1244 
1245 config CPU_MIPS64_R2
1246         bool "MIPS64 Release 2"
1247         depends on SYS_HAS_CPU_MIPS64_R2
1248         select CPU_HAS_PREFETCH
1249         select CPU_SUPPORTS_32BIT_KERNEL
1250         select CPU_SUPPORTS_64BIT_KERNEL
1251         select CPU_SUPPORTS_HIGHMEM
1252         select CPU_SUPPORTS_HUGEPAGES
1253         select CPU_SUPPORTS_MSA
1254         help
1255           Choose this option to build a kernel for release 2 or later of the
1256           MIPS64 architecture.  Many modern embedded systems with a 64-bit
1257           MIPS processor are based on a MIPS64 processor.  If you know the
1258           specific type of processor in your system, choose those that one
1259           otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1260 
1261 config CPU_R3000
1262         bool "R3000"
1263         depends on SYS_HAS_CPU_R3000
1264         select CPU_HAS_WB
1265         select CPU_SUPPORTS_32BIT_KERNEL
1266         select CPU_SUPPORTS_HIGHMEM
1267         help
1268           Please make sure to pick the right CPU type. Linux/MIPS is not
1269           designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1270           *not* work on R4000 machines and vice versa.  However, since most
1271           of the supported machines have an R4000 (or similar) CPU, R4x00
1272           might be a safe bet.  If the resulting kernel does not work,
1273           try to recompile with R3000.
1274 
1275 config CPU_TX39XX
1276         bool "R39XX"
1277         depends on SYS_HAS_CPU_TX39XX
1278         select CPU_SUPPORTS_32BIT_KERNEL
1279 
1280 config CPU_VR41XX
1281         bool "R41xx"
1282         depends on SYS_HAS_CPU_VR41XX
1283         select CPU_SUPPORTS_32BIT_KERNEL
1284         select CPU_SUPPORTS_64BIT_KERNEL
1285         help
1286           The options selects support for the NEC VR4100 series of processors.
1287           Only choose this option if you have one of these processors as a
1288           kernel built with this option will not run on any other type of
1289           processor or vice versa.
1290 
1291 config CPU_R4300
1292         bool "R4300"
1293         depends on SYS_HAS_CPU_R4300
1294         select CPU_SUPPORTS_32BIT_KERNEL
1295         select CPU_SUPPORTS_64BIT_KERNEL
1296         help
1297           MIPS Technologies R4300-series processors.
1298 
1299 config CPU_R4X00
1300         bool "R4x00"
1301         depends on SYS_HAS_CPU_R4X00
1302         select CPU_SUPPORTS_32BIT_KERNEL
1303         select CPU_SUPPORTS_64BIT_KERNEL
1304         select CPU_SUPPORTS_HUGEPAGES
1305         help
1306           MIPS Technologies R4000-series processors other than 4300, including
1307           the R4000, R4400, R4600, and 4700.
1308 
1309 config CPU_TX49XX
1310         bool "R49XX"
1311         depends on SYS_HAS_CPU_TX49XX
1312         select CPU_HAS_PREFETCH
1313         select CPU_SUPPORTS_32BIT_KERNEL
1314         select CPU_SUPPORTS_64BIT_KERNEL
1315         select CPU_SUPPORTS_HUGEPAGES
1316 
1317 config CPU_R5000
1318         bool "R5000"
1319         depends on SYS_HAS_CPU_R5000
1320         select CPU_SUPPORTS_32BIT_KERNEL
1321         select CPU_SUPPORTS_64BIT_KERNEL
1322         select CPU_SUPPORTS_HUGEPAGES
1323         help
1324           MIPS Technologies R5000-series processors other than the Nevada.
1325 
1326 config CPU_R5432
1327         bool "R5432"
1328         depends on SYS_HAS_CPU_R5432
1329         select CPU_SUPPORTS_32BIT_KERNEL
1330         select CPU_SUPPORTS_64BIT_KERNEL
1331         select CPU_SUPPORTS_HUGEPAGES
1332 
1333 config CPU_R5500
1334         bool "R5500"
1335         depends on SYS_HAS_CPU_R5500
1336         select CPU_SUPPORTS_32BIT_KERNEL
1337         select CPU_SUPPORTS_64BIT_KERNEL
1338         select CPU_SUPPORTS_HUGEPAGES
1339         help
1340           NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1341           instruction set.
1342 
1343 config CPU_R6000
1344         bool "R6000"
1345         depends on SYS_HAS_CPU_R6000
1346         select CPU_SUPPORTS_32BIT_KERNEL
1347         help
1348           MIPS Technologies R6000 and R6000A series processors.  Note these
1349           processors are extremely rare and the support for them is incomplete.
1350 
1351 config CPU_NEVADA
1352         bool "RM52xx"
1353         depends on SYS_HAS_CPU_NEVADA
1354         select CPU_SUPPORTS_32BIT_KERNEL
1355         select CPU_SUPPORTS_64BIT_KERNEL
1356         select CPU_SUPPORTS_HUGEPAGES
1357         help
1358           QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1359 
1360 config CPU_R8000
1361         bool "R8000"
1362         depends on SYS_HAS_CPU_R8000
1363         select CPU_HAS_PREFETCH
1364         select CPU_SUPPORTS_64BIT_KERNEL
1365         help
1366           MIPS Technologies R8000 processors.  Note these processors are
1367           uncommon and the support for them is incomplete.
1368 
1369 config CPU_R10000
1370         bool "R10000"
1371         depends on SYS_HAS_CPU_R10000
1372         select CPU_HAS_PREFETCH
1373         select CPU_SUPPORTS_32BIT_KERNEL
1374         select CPU_SUPPORTS_64BIT_KERNEL
1375         select CPU_SUPPORTS_HIGHMEM
1376         select CPU_SUPPORTS_HUGEPAGES
1377         help
1378           MIPS Technologies R10000-series processors.
1379 
1380 config CPU_RM7000
1381         bool "RM7000"
1382         depends on SYS_HAS_CPU_RM7000
1383         select CPU_HAS_PREFETCH
1384         select CPU_SUPPORTS_32BIT_KERNEL
1385         select CPU_SUPPORTS_64BIT_KERNEL
1386         select CPU_SUPPORTS_HIGHMEM
1387         select CPU_SUPPORTS_HUGEPAGES
1388 
1389 config CPU_SB1
1390         bool "SB1"
1391         depends on SYS_HAS_CPU_SB1
1392         select CPU_SUPPORTS_32BIT_KERNEL
1393         select CPU_SUPPORTS_64BIT_KERNEL
1394         select CPU_SUPPORTS_HIGHMEM
1395         select CPU_SUPPORTS_HUGEPAGES
1396         select WEAK_ORDERING
1397 
1398 config CPU_CAVIUM_OCTEON
1399         bool "Cavium Octeon processor"
1400         depends on SYS_HAS_CPU_CAVIUM_OCTEON
1401         select ARCH_SPARSEMEM_ENABLE
1402         select CPU_HAS_PREFETCH
1403         select CPU_SUPPORTS_64BIT_KERNEL
1404         select SYS_SUPPORTS_SMP
1405         select NR_CPUS_DEFAULT_16
1406         select WEAK_ORDERING
1407         select CPU_SUPPORTS_HIGHMEM
1408         select CPU_SUPPORTS_HUGEPAGES
1409         select LIBFDT
1410         select USE_OF
1411         select USB_EHCI_BIG_ENDIAN_MMIO
1412         select MIPS_L1_CACHE_SHIFT_7
1413         help
1414           The Cavium Octeon processor is a highly integrated chip containing
1415           many ethernet hardware widgets for networking tasks. The processor
1416           can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1417           Full details can be found at http://www.caviumnetworks.com.
1418 
1419 config CPU_BMIPS
1420         bool "Broadcom BMIPS"
1421         depends on SYS_HAS_CPU_BMIPS
1422         select CPU_MIPS32
1423         select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1424         select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1425         select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1426         select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1427         select CPU_SUPPORTS_32BIT_KERNEL
1428         select DMA_NONCOHERENT
1429         select IRQ_CPU
1430         select SWAP_IO_SPACE
1431         select WEAK_ORDERING
1432         select CPU_SUPPORTS_HIGHMEM
1433         select CPU_HAS_PREFETCH
1434         help
1435           Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1436 
1437 config CPU_XLR
1438         bool "Netlogic XLR SoC"
1439         depends on SYS_HAS_CPU_XLR
1440         select CPU_SUPPORTS_32BIT_KERNEL
1441         select CPU_SUPPORTS_64BIT_KERNEL
1442         select CPU_SUPPORTS_HIGHMEM
1443         select CPU_SUPPORTS_HUGEPAGES
1444         select WEAK_ORDERING
1445         select WEAK_REORDERING_BEYOND_LLSC
1446         help
1447           Netlogic Microsystems XLR/XLS processors.
1448 
1449 config CPU_XLP
1450         bool "Netlogic XLP SoC"
1451         depends on SYS_HAS_CPU_XLP
1452         select CPU_SUPPORTS_32BIT_KERNEL
1453         select CPU_SUPPORTS_64BIT_KERNEL
1454         select CPU_SUPPORTS_HIGHMEM
1455         select WEAK_ORDERING
1456         select WEAK_REORDERING_BEYOND_LLSC
1457         select CPU_HAS_PREFETCH
1458         select CPU_MIPSR2
1459         help
1460           Netlogic Microsystems XLP processors.
1461 endchoice
1462 
1463 config CPU_MIPS32_3_5_FEATURES
1464         bool "MIPS32 Release 3.5 Features"
1465         depends on SYS_HAS_CPU_MIPS32_R3_5
1466         depends on CPU_MIPS32_R2
1467         help
1468           Choose this option to build a kernel for release 2 or later of the
1469           MIPS32 architecture including features from the 3.5 release such as
1470           support for Enhanced Virtual Addressing (EVA).
1471 
1472 config CPU_MIPS32_3_5_EVA
1473         bool "Enhanced Virtual Addressing (EVA)"
1474         depends on CPU_MIPS32_3_5_FEATURES
1475         select EVA
1476         default y
1477         help
1478           Choose this option if you want to enable the Enhanced Virtual
1479           Addressing (EVA) on your MIPS32 core (such as proAptiv).
1480           One of its primary benefits is an increase in the maximum size
1481           of lowmem (up to 3GB). If unsure, say 'N' here.
1482 
1483 if CPU_LOONGSON2F
1484 config CPU_NOP_WORKAROUNDS
1485         bool
1486 
1487 config CPU_JUMP_WORKAROUNDS
1488         bool
1489 
1490 config CPU_LOONGSON2F_WORKAROUNDS
1491         bool "Loongson 2F Workarounds"
1492         default y
1493         select CPU_NOP_WORKAROUNDS
1494         select CPU_JUMP_WORKAROUNDS
1495         help
1496           Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1497           require workarounds.  Without workarounds the system may hang
1498           unexpectedly.  For more information please refer to the gas
1499           -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1500 
1501           Loongson 2F03 and later have fixed these issues and no workarounds
1502           are needed.  The workarounds have no significant side effect on them
1503           but may decrease the performance of the system so this option should
1504           be disabled unless the kernel is intended to be run on 2F01 or 2F02
1505           systems.
1506 
1507           If unsure, please say Y.
1508 endif # CPU_LOONGSON2F
1509 
1510 config SYS_SUPPORTS_ZBOOT
1511         bool
1512         select HAVE_KERNEL_GZIP
1513         select HAVE_KERNEL_BZIP2
1514         select HAVE_KERNEL_LZ4
1515         select HAVE_KERNEL_LZMA
1516         select HAVE_KERNEL_LZO
1517         select HAVE_KERNEL_XZ
1518 
1519 config SYS_SUPPORTS_ZBOOT_UART16550
1520         bool
1521         select SYS_SUPPORTS_ZBOOT
1522 
1523 config CPU_LOONGSON2
1524         bool
1525         select CPU_SUPPORTS_32BIT_KERNEL
1526         select CPU_SUPPORTS_64BIT_KERNEL
1527         select CPU_SUPPORTS_HIGHMEM
1528         select CPU_SUPPORTS_HUGEPAGES
1529 
1530 config CPU_LOONGSON1
1531         bool
1532         select CPU_MIPS32
1533         select CPU_MIPSR2
1534         select CPU_HAS_PREFETCH
1535         select CPU_SUPPORTS_32BIT_KERNEL
1536         select CPU_SUPPORTS_HIGHMEM
1537 
1538 config CPU_BMIPS32_3300
1539         select SMP_UP if SMP
1540         bool
1541 
1542 config CPU_BMIPS4350
1543         bool
1544         select SYS_SUPPORTS_SMP
1545         select SYS_SUPPORTS_HOTPLUG_CPU
1546 
1547 config CPU_BMIPS4380
1548         bool
1549         select SYS_SUPPORTS_SMP
1550         select SYS_SUPPORTS_HOTPLUG_CPU
1551 
1552 config CPU_BMIPS5000
1553         bool
1554         select MIPS_CPU_SCACHE
1555         select SYS_SUPPORTS_SMP
1556         select SYS_SUPPORTS_HOTPLUG_CPU
1557 
1558 config SYS_HAS_CPU_LOONGSON3
1559         bool
1560         select CPU_SUPPORTS_CPUFREQ
1561 
1562 config SYS_HAS_CPU_LOONGSON2E
1563         bool
1564 
1565 config SYS_HAS_CPU_LOONGSON2F
1566         bool
1567         select CPU_SUPPORTS_CPUFREQ
1568         select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1569         select CPU_SUPPORTS_UNCACHED_ACCELERATED
1570 
1571 config SYS_HAS_CPU_LOONGSON1B
1572         bool
1573 
1574 config SYS_HAS_CPU_MIPS32_R1
1575         bool
1576 
1577 config SYS_HAS_CPU_MIPS32_R2
1578         bool
1579 
1580 config SYS_HAS_CPU_MIPS32_R3_5
1581         bool
1582 
1583 config SYS_HAS_CPU_MIPS64_R1
1584         bool
1585 
1586 config SYS_HAS_CPU_MIPS64_R2
1587         bool
1588 
1589 config SYS_HAS_CPU_R3000
1590         bool
1591 
1592 config SYS_HAS_CPU_TX39XX
1593         bool
1594 
1595 config SYS_HAS_CPU_VR41XX
1596         bool
1597 
1598 config SYS_HAS_CPU_R4300
1599         bool
1600 
1601 config SYS_HAS_CPU_R4X00
1602         bool
1603 
1604 config SYS_HAS_CPU_TX49XX
1605         bool
1606 
1607 config SYS_HAS_CPU_R5000
1608         bool
1609 
1610 config SYS_HAS_CPU_R5432
1611         bool
1612 
1613 config SYS_HAS_CPU_R5500
1614         bool
1615 
1616 config SYS_HAS_CPU_R6000
1617         bool
1618 
1619 config SYS_HAS_CPU_NEVADA
1620         bool
1621 
1622 config SYS_HAS_CPU_R8000
1623         bool
1624 
1625 config SYS_HAS_CPU_R10000
1626         bool
1627 
1628 config SYS_HAS_CPU_RM7000
1629         bool
1630 
1631 config SYS_HAS_CPU_SB1
1632         bool
1633 
1634 config SYS_HAS_CPU_CAVIUM_OCTEON
1635         bool
1636 
1637 config SYS_HAS_CPU_BMIPS
1638         bool
1639 
1640 config SYS_HAS_CPU_BMIPS32_3300
1641         bool
1642         select SYS_HAS_CPU_BMIPS
1643 
1644 config SYS_HAS_CPU_BMIPS4350
1645         bool
1646         select SYS_HAS_CPU_BMIPS
1647 
1648 config SYS_HAS_CPU_BMIPS4380
1649         bool
1650         select SYS_HAS_CPU_BMIPS
1651 
1652 config SYS_HAS_CPU_BMIPS5000
1653         bool
1654         select SYS_HAS_CPU_BMIPS
1655 
1656 config SYS_HAS_CPU_XLR
1657         bool
1658 
1659 config SYS_HAS_CPU_XLP
1660         bool
1661 
1662 #
1663 # CPU may reorder R->R, R->W, W->R, W->W
1664 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1665 #
1666 config WEAK_ORDERING
1667         bool
1668 
1669 #
1670 # CPU may reorder reads and writes beyond LL/SC
1671 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1672 #
1673 config WEAK_REORDERING_BEYOND_LLSC
1674         bool
1675 endmenu
1676 
1677 #
1678 # These two indicate any level of the MIPS32 and MIPS64 architecture
1679 #
1680 config CPU_MIPS32
1681         bool
1682         default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1683 
1684 config CPU_MIPS64
1685         bool
1686         default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1687 
1688 #
1689 # These two indicate the revision of the architecture, either Release 1 or Release 2
1690 #
1691 config CPU_MIPSR1
1692         bool
1693         default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1694 
1695 config CPU_MIPSR2
1696         bool
1697         default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1698 
1699 config EVA
1700         bool
1701 
1702 config SYS_SUPPORTS_32BIT_KERNEL
1703         bool
1704 config SYS_SUPPORTS_64BIT_KERNEL
1705         bool
1706 config CPU_SUPPORTS_32BIT_KERNEL
1707         bool
1708 config CPU_SUPPORTS_64BIT_KERNEL
1709         bool
1710 config CPU_SUPPORTS_CPUFREQ
1711         bool
1712 config CPU_SUPPORTS_ADDRWINCFG
1713         bool
1714 config CPU_SUPPORTS_HUGEPAGES
1715         bool
1716 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1717         bool
1718 config MIPS_PGD_C0_CONTEXT
1719         bool
1720         default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1721 
1722 #
1723 # Set to y for ptrace access to watch registers.
1724 #
1725 config HARDWARE_WATCHPOINTS
1726        bool
1727        default y if CPU_MIPSR1 || CPU_MIPSR2
1728 
1729 menu "Kernel type"
1730 
1731 choice
1732         prompt "Kernel code model"
1733         help
1734           You should only select this option if you have a workload that
1735           actually benefits from 64-bit processing or if your machine has
1736           large memory.  You will only be presented a single option in this
1737           menu if your system does not support both 32-bit and 64-bit kernels.
1738 
1739 config 32BIT
1740         bool "32-bit kernel"
1741         depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1742         select TRAD_SIGNALS
1743         help
1744           Select this option if you want to build a 32-bit kernel.
1745 config 64BIT
1746         bool "64-bit kernel"
1747         depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1748         help
1749           Select this option if you want to build a 64-bit kernel.
1750 
1751 endchoice
1752 
1753 config KVM_GUEST
1754         bool "KVM Guest Kernel"
1755         depends on BROKEN_ON_SMP
1756         help
1757           Select this option if building a guest kernel for KVM (Trap & Emulate) mode
1758 
1759 config KVM_HOST_FREQ
1760         int "KVM Host Processor Frequency (MHz)"
1761         depends on KVM_GUEST
1762         default 500
1763         help
1764           Select this option if building a guest kernel for KVM to skip
1765           RTC emulation when determining guest CPU Frequency.  Instead, the guest
1766           processor frequency is automatically derived from the host frequency.
1767 
1768 choice
1769         prompt "Kernel page size"
1770         default PAGE_SIZE_4KB
1771 
1772 config PAGE_SIZE_4KB
1773         bool "4kB"
1774         depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
1775         help
1776          This option select the standard 4kB Linux page size.  On some
1777          R3000-family processors this is the only available page size.  Using
1778          4kB page size will minimize memory consumption and is therefore
1779          recommended for low memory systems.
1780 
1781 config PAGE_SIZE_8KB
1782         bool "8kB"
1783         depends on CPU_R8000 || CPU_CAVIUM_OCTEON
1784         help
1785           Using 8kB page size will result in higher performance kernel at
1786           the price of higher memory consumption.  This option is available
1787           only on R8000 and cnMIPS processors.  Note that you will need a
1788           suitable Linux distribution to support this.
1789 
1790 config PAGE_SIZE_16KB
1791         bool "16kB"
1792         depends on !CPU_R3000 && !CPU_TX39XX
1793         help
1794           Using 16kB page size will result in higher performance kernel at
1795           the price of higher memory consumption.  This option is available on
1796           all non-R3000 family processors.  Note that you will need a suitable
1797           Linux distribution to support this.
1798 
1799 config PAGE_SIZE_32KB
1800         bool "32kB"
1801         depends on CPU_CAVIUM_OCTEON
1802         help
1803           Using 32kB page size will result in higher performance kernel at
1804           the price of higher memory consumption.  This option is available
1805           only on cnMIPS cores.  Note that you will need a suitable Linux
1806           distribution to support this.
1807 
1808 config PAGE_SIZE_64KB
1809         bool "64kB"
1810         depends on !CPU_R3000 && !CPU_TX39XX
1811         help
1812           Using 64kB page size will result in higher performance kernel at
1813           the price of higher memory consumption.  This option is available on
1814           all non-R3000 family processor.  Not that at the time of this
1815           writing this option is still high experimental.
1816 
1817 endchoice
1818 
1819 config FORCE_MAX_ZONEORDER
1820         int "Maximum zone order"
1821         range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
1822         default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
1823         range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
1824         default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
1825         range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
1826         default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
1827         range 11 64
1828         default "11"
1829         help
1830           The kernel memory allocator divides physically contiguous memory
1831           blocks into "zones", where each zone is a power of two number of
1832           pages.  This option selects the largest power of two that the kernel
1833           keeps in the memory allocator.  If you need to allocate very large
1834           blocks of physically contiguous memory, then you may need to
1835           increase this value.
1836 
1837           This config option is actually maximum order plus one. For example,
1838           a value of 11 means that the largest free memory block is 2^10 pages.
1839 
1840           The page size is not necessarily 4KB.  Keep this in mind
1841           when choosing a value for this option.
1842 
1843 config CEVT_GIC
1844         bool "Use GIC global counter for clock events"
1845         depends on IRQ_GIC && !(MIPS_SEAD3 || MIPS_MT_SMTC)
1846         help
1847           Use the GIC global counter for the clock events. The R4K clock
1848           event driver is always present, so if the platform ends up not
1849           detecting a GIC, it will fall back to the R4K timer for the
1850           generation of clock events.
1851 
1852 config BOARD_SCACHE
1853         bool
1854 
1855 config IP22_CPU_SCACHE
1856         bool
1857         select BOARD_SCACHE
1858 
1859 #
1860 # Support for a MIPS32 / MIPS64 style S-caches
1861 #
1862 config MIPS_CPU_SCACHE
1863         bool
1864         select BOARD_SCACHE
1865         select MIPS_L1_CACHE_SHIFT_6
1866 
1867 config R5000_CPU_SCACHE
1868         bool
1869         select BOARD_SCACHE
1870 
1871 config RM7000_CPU_SCACHE
1872         bool
1873         select BOARD_SCACHE
1874 
1875 config SIBYTE_DMA_PAGEOPS
1876         bool "Use DMA to clear/copy pages"
1877         depends on CPU_SB1
1878         help
1879           Instead of using the CPU to zero and copy pages, use a Data Mover
1880           channel.  These DMA channels are otherwise unused by the standard
1881           SiByte Linux port.  Seems to give a small performance benefit.
1882 
1883 config CPU_HAS_PREFETCH
1884         bool
1885 
1886 config CPU_GENERIC_DUMP_TLB
1887         bool
1888         default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1889 
1890 config CPU_R4K_FPU
1891         bool
1892         default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1893 
1894 config CPU_R4K_CACHE_TLB
1895         bool
1896         default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1897 
1898 choice
1899         prompt "MIPS MT options"
1900 
1901 config MIPS_MT_DISABLED
1902         bool "Disable multithreading support"
1903         help
1904           Use this option if your platform does not support the MT ASE
1905           which is hardware multithreading support. On systems without
1906           an MT-enabled processor, this will be the only option that is
1907           available in this menu.
1908 
1909 config MIPS_MT_SMP
1910         bool "Use 1 TC on each available VPE for SMP"
1911         depends on SYS_SUPPORTS_MULTITHREADING
1912         select CPU_MIPSR2_IRQ_VI
1913         select CPU_MIPSR2_IRQ_EI
1914         select SYNC_R4K
1915         select MIPS_GIC_IPI
1916         select MIPS_MT
1917         select SMP
1918         select SMP_UP
1919         select SYS_SUPPORTS_SMP
1920         select SYS_SUPPORTS_SCHED_SMT
1921         select MIPS_PERF_SHARED_TC_COUNTERS
1922         help
1923           This is a kernel model which is known as SMVP. This is supported
1924           on cores with the MT ASE and uses the available VPEs to implement
1925           virtual processors which supports SMP. This is equivalent to the
1926           Intel Hyperthreading feature. For further information go to
1927           <http://www.imgtec.com/mips/mips-multithreading.asp>.
1928 
1929 config MIPS_MT_SMTC
1930         bool "Use all TCs on all VPEs for SMP (DEPRECATED)"
1931         depends on CPU_MIPS32_R2
1932         depends on SYS_SUPPORTS_MULTITHREADING
1933         depends on !MIPS_CPS
1934         select CPU_MIPSR2_IRQ_VI
1935         select CPU_MIPSR2_IRQ_EI
1936         select MIPS_MT
1937         select SMP
1938         select SMP_UP
1939         select SYS_SUPPORTS_SMP
1940         select NR_CPUS_DEFAULT_8
1941         help
1942           This is a kernel model which is known as SMTC. This is
1943           supported on cores with the MT ASE and presents all TCs
1944           available on all VPEs to support SMP. For further
1945           information see <http://www.linux-mips.org/wiki/34K#SMTC>.
1946 
1947 endchoice
1948 
1949 config MIPS_MT
1950         bool
1951 
1952 config SCHED_SMT
1953         bool "SMT (multithreading) scheduler support"
1954         depends on SYS_SUPPORTS_SCHED_SMT
1955         default n
1956         help
1957           SMT scheduler support improves the CPU scheduler's decision making
1958           when dealing with MIPS MT enabled cores at a cost of slightly
1959           increased overhead in some places. If unsure say N here.
1960 
1961 config SYS_SUPPORTS_SCHED_SMT
1962         bool
1963 
1964 config SYS_SUPPORTS_MULTITHREADING
1965         bool
1966 
1967 config MIPS_MT_FPAFF
1968         bool "Dynamic FPU affinity for FP-intensive threads"
1969         default y
1970         depends on MIPS_MT_SMP || MIPS_MT_SMTC
1971 
1972 config MIPS_VPE_LOADER
1973         bool "VPE loader support."
1974         depends on SYS_SUPPORTS_MULTITHREADING && MODULES
1975         select CPU_MIPSR2_IRQ_VI
1976         select CPU_MIPSR2_IRQ_EI
1977         select MIPS_MT
1978         help
1979           Includes a loader for loading an elf relocatable object
1980           onto another VPE and running it.
1981 
1982 config MIPS_VPE_LOADER_CMP
1983         bool
1984         default "y"
1985         depends on MIPS_VPE_LOADER && MIPS_CMP
1986 
1987 config MIPS_VPE_LOADER_MT
1988         bool
1989         default "y"
1990         depends on MIPS_VPE_LOADER && !MIPS_CMP
1991 
1992 config MIPS_MT_SMTC_IM_BACKSTOP
1993         bool "Use per-TC register bits as backstop for inhibited IM bits"
1994         depends on MIPS_MT_SMTC
1995         default n
1996         help
1997           To support multiple TC microthreads acting as "CPUs" within
1998           a VPE, VPE-wide interrupt mask bits must be specially manipulated
1999           during interrupt handling. To support legacy drivers and interrupt
2000           controller management code, SMTC has a "backstop" to track and
2001           if necessary restore the interrupt mask. This has some performance
2002           impact on interrupt service overhead.
2003 
2004 config MIPS_MT_SMTC_IRQAFF
2005         bool "Support IRQ affinity API"
2006         depends on MIPS_MT_SMTC
2007         default n
2008         help
2009           Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
2010           for SMTC Linux kernel. Requires platform support, of which
2011           an example can be found in the MIPS kernel i8259 and Malta
2012           platform code.  Adds some overhead to interrupt dispatch, and
2013           should be used only if you know what you are doing.
2014 
2015 config MIPS_VPE_LOADER_TOM
2016         bool "Load VPE program into memory hidden from linux"
2017         depends on MIPS_VPE_LOADER
2018         default y
2019         help
2020           The loader can use memory that is present but has been hidden from
2021           Linux using the kernel command line option "mem=xxMB". It's up to
2022           you to ensure the amount you put in the option and the space your
2023           program requires is less or equal to the amount physically present.
2024 
2025 config MIPS_VPE_APSP_API
2026         bool "Enable support for AP/SP API (RTLX)"
2027         depends on MIPS_VPE_LOADER
2028         help
2029 
2030 config MIPS_VPE_APSP_API_CMP
2031         bool
2032         default "y"
2033         depends on MIPS_VPE_APSP_API && MIPS_CMP
2034 
2035 config MIPS_VPE_APSP_API_MT
2036         bool
2037         default "y"
2038         depends on MIPS_VPE_APSP_API && !MIPS_CMP
2039 
2040 config MIPS_CMP
2041         bool "MIPS CMP framework support (DEPRECATED)"
2042         depends on SYS_SUPPORTS_MIPS_CMP && !MIPS_MT_SMTC
2043         select MIPS_GIC_IPI
2044         select SYNC_R4K
2045         select WEAK_ORDERING
2046         default n
2047         help
2048           Select this if you are using a bootloader which implements the "CMP
2049           framework" protocol (ie. YAMON) and want your kernel to make use of
2050           its ability to start secondary CPUs.
2051 
2052           Unless you have a specific need, you should use CONFIG_MIPS_CPS
2053           instead of this.
2054 
2055 config MIPS_CPS
2056         bool "MIPS Coherent Processing System support"
2057         depends on SYS_SUPPORTS_MIPS_CPS
2058         select MIPS_CM
2059         select MIPS_CPC
2060         select MIPS_GIC_IPI
2061         select SMP
2062         select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2063         select SYS_SUPPORTS_SMP
2064         select WEAK_ORDERING
2065         help
2066           Select this if you wish to run an SMP kernel across multiple cores
2067           within a MIPS Coherent Processing System. When this option is
2068           enabled the kernel will probe for other cores and boot them with
2069           no external assistance. It is safe to enable this when hardware
2070           support is unavailable.
2071 
2072 config MIPS_GIC_IPI
2073         bool
2074 
2075 config MIPS_CM
2076         bool
2077 
2078 config MIPS_CPC
2079         bool
2080 
2081 config SB1_PASS_1_WORKAROUNDS
2082         bool
2083         depends on CPU_SB1_PASS_1
2084         default y
2085 
2086 config SB1_PASS_2_WORKAROUNDS
2087         bool
2088         depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2089         default y
2090 
2091 config SB1_PASS_2_1_WORKAROUNDS
2092         bool
2093         depends on CPU_SB1 && CPU_SB1_PASS_2
2094         default y
2095 
2096 
2097 config 64BIT_PHYS_ADDR
2098         bool
2099 
2100 config ARCH_PHYS_ADDR_T_64BIT
2101        def_bool 64BIT_PHYS_ADDR
2102 
2103 config CPU_HAS_SMARTMIPS
2104         depends on SYS_SUPPORTS_SMARTMIPS
2105         bool "Support for the SmartMIPS ASE"
2106         help
2107           SmartMIPS is a extension of the MIPS32 architecture aimed at
2108           increased security at both hardware and software level for
2109           smartcards.  Enabling this option will allow proper use of the
2110           SmartMIPS instructions by Linux applications.  However a kernel with
2111           this option will not work on a MIPS core without SmartMIPS core.  If
2112           you don't know you probably don't have SmartMIPS and should say N
2113           here.
2114 
2115 config CPU_MICROMIPS
2116         depends on SYS_SUPPORTS_MICROMIPS
2117         bool "Build kernel using microMIPS ISA"
2118         help
2119           When this option is enabled the kernel will be built using the
2120           microMIPS ISA
2121 
2122 config CPU_HAS_MSA
2123         bool "Support for the MIPS SIMD Architecture"
2124         depends on CPU_SUPPORTS_MSA
2125         default y
2126         help
2127           MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2128           and a set of SIMD instructions to operate on them. When this option
2129           is enabled the kernel will support allocating & switching MSA
2130           vector register contexts. If you know that your kernel will only be
2131           running on CPUs which do not support MSA or that your userland will
2132           not be making use of it then you may wish to say N here to reduce
2133           the size & complexity of your kernel.
2134 
2135           If unsure, say Y.
2136 
2137 config CPU_HAS_WB
2138         bool
2139 
2140 config XKS01
2141         bool
2142 
2143 #
2144 # Vectored interrupt mode is an R2 feature
2145 #
2146 config CPU_MIPSR2_IRQ_VI
2147         bool
2148 
2149 #
2150 # Extended interrupt mode is an R2 feature
2151 #
2152 config CPU_MIPSR2_IRQ_EI
2153         bool
2154 
2155 config CPU_HAS_SYNC
2156         bool
2157         depends on !CPU_R3000
2158         default y
2159 
2160 #
2161 # CPU non-features
2162 #
2163 config CPU_DADDI_WORKAROUNDS
2164         bool
2165 
2166 config CPU_R4000_WORKAROUNDS
2167         bool
2168         select CPU_R4400_WORKAROUNDS
2169 
2170 config CPU_R4400_WORKAROUNDS
2171         bool
2172 
2173 #
2174 # - Highmem only makes sense for the 32-bit kernel.
2175 # - The current highmem code will only work properly on physically indexed
2176 #   caches such as R3000, SB1, R7000 or those that look like they're virtually
2177 #   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
2178 #   moment we protect the user and offer the highmem option only on machines
2179 #   where it's known to be safe.  This will not offer highmem on a few systems
2180 #   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2181 #   indexed CPUs but we're playing safe.
2182 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2183 #   know they might have memory configurations that could make use of highmem
2184 #   support.
2185 #
2186 config HIGHMEM
2187         bool "High Memory Support"
2188         depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2189 
2190 config CPU_SUPPORTS_HIGHMEM
2191         bool
2192 
2193 config SYS_SUPPORTS_HIGHMEM
2194         bool
2195 
2196 config SYS_SUPPORTS_SMARTMIPS
2197         bool
2198 
2199 config SYS_SUPPORTS_MICROMIPS
2200         bool
2201 
2202 config CPU_SUPPORTS_MSA
2203         bool
2204 
2205 config ARCH_FLATMEM_ENABLE
2206         def_bool y
2207         depends on !NUMA && !CPU_LOONGSON2
2208 
2209 config ARCH_DISCONTIGMEM_ENABLE
2210         bool
2211         default y if SGI_IP27
2212         help
2213           Say Y to support efficient handling of discontiguous physical memory,
2214           for architectures which are either NUMA (Non-Uniform Memory Access)
2215           or have huge holes in the physical address space for other reasons.
2216           See <file:Documentation/vm/numa> for more.
2217 
2218 config ARCH_SPARSEMEM_ENABLE
2219         bool
2220         select SPARSEMEM_STATIC
2221 
2222 config NUMA
2223         bool "NUMA Support"
2224         depends on SYS_SUPPORTS_NUMA
2225         help
2226           Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2227           Access).  This option improves performance on systems with more
2228           than two nodes; on two node systems it is generally better to
2229           leave it disabled; on single node systems disable this option
2230           disabled.
2231 
2232 config SYS_SUPPORTS_NUMA
2233         bool
2234 
2235 config NODES_SHIFT
2236         int
2237         default "6"
2238         depends on NEED_MULTIPLE_NODES
2239 
2240 config HW_PERF_EVENTS
2241         bool "Enable hardware performance counter support for perf events"
2242         depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2243         default y
2244         help
2245           Enable hardware performance counter support for perf events. If
2246           disabled, perf events will use software events only.
2247 
2248 source "mm/Kconfig"
2249 
2250 config SMP
2251         bool "Multi-Processing support"
2252         depends on SYS_SUPPORTS_SMP
2253         help
2254           This enables support for systems with more than one CPU. If you have
2255           a system with only one CPU, say N. If you have a system with more
2256           than one CPU, say Y.
2257 
2258           If you say N here, the kernel will run on uni- and multiprocessor
2259           machines, but will use only one CPU of a multiprocessor machine. If
2260           you say Y here, the kernel will run on many, but not all,
2261           uniprocessor machines. On a uniprocessor machine, the kernel
2262           will run faster if you say N here.
2263 
2264           People using multiprocessor machines who say Y here should also say
2265           Y to "Enhanced Real Time Clock Support", below.
2266 
2267           See also the SMP-HOWTO available at
2268           <http://www.tldp.org/docs.html#howto>.
2269 
2270           If you don't know what to do here, say N.
2271 
2272 config SMP_UP
2273         bool
2274 
2275 config SYS_SUPPORTS_MIPS_CMP
2276         bool
2277 
2278 config SYS_SUPPORTS_MIPS_CPS
2279         bool
2280 
2281 config SYS_SUPPORTS_SMP
2282         bool
2283 
2284 config NR_CPUS_DEFAULT_4
2285         bool
2286 
2287 config NR_CPUS_DEFAULT_8
2288         bool
2289 
2290 config NR_CPUS_DEFAULT_16
2291         bool
2292 
2293 config NR_CPUS_DEFAULT_32
2294         bool
2295 
2296 config NR_CPUS_DEFAULT_64
2297         bool
2298 
2299 config NR_CPUS
2300         int "Maximum number of CPUs (2-64)"
2301         range 2 64
2302         depends on SMP
2303         default "4" if NR_CPUS_DEFAULT_4
2304         default "8" if NR_CPUS_DEFAULT_8
2305         default "16" if NR_CPUS_DEFAULT_16
2306         default "32" if NR_CPUS_DEFAULT_32
2307         default "64" if NR_CPUS_DEFAULT_64
2308         help
2309           This allows you to specify the maximum number of CPUs which this
2310           kernel will support.  The maximum supported value is 32 for 32-bit
2311           kernel and 64 for 64-bit kernels; the minimum value which makes
2312           sense is 1 for Qemu (useful only for kernel debugging purposes)
2313           and 2 for all others.
2314 
2315           This is purely to save memory - each supported CPU adds
2316           approximately eight kilobytes to the kernel image.  For best
2317           performance should round up your number of processors to the next
2318           power of two.
2319 
2320 config MIPS_PERF_SHARED_TC_COUNTERS
2321         bool
2322 
2323 #
2324 # Timer Interrupt Frequency Configuration
2325 #
2326 
2327 choice
2328         prompt "Timer frequency"
2329         default HZ_250
2330         help
2331          Allows the configuration of the timer frequency.
2332 
2333         config HZ_48
2334                 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2335 
2336         config HZ_100
2337                 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2338 
2339         config HZ_128
2340                 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2341 
2342         config HZ_250
2343                 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2344 
2345         config HZ_256
2346                 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2347 
2348         config HZ_1000
2349                 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2350 
2351         config HZ_1024
2352                 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2353 
2354 endchoice
2355 
2356 config SYS_SUPPORTS_48HZ
2357         bool
2358 
2359 config SYS_SUPPORTS_100HZ
2360         bool
2361 
2362 config SYS_SUPPORTS_128HZ
2363         bool
2364 
2365 config SYS_SUPPORTS_250HZ
2366         bool
2367 
2368 config SYS_SUPPORTS_256HZ
2369         bool
2370 
2371 config SYS_SUPPORTS_1000HZ
2372         bool
2373 
2374 config SYS_SUPPORTS_1024HZ
2375         bool
2376 
2377 config SYS_SUPPORTS_ARBIT_HZ
2378         bool
2379         default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2380                      !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2381                      !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2382                      !SYS_SUPPORTS_1024HZ
2383 
2384 config HZ
2385         int
2386         default 48 if HZ_48
2387         default 100 if HZ_100
2388         default 128 if HZ_128
2389         default 250 if HZ_250
2390         default 256 if HZ_256
2391         default 1000 if HZ_1000
2392         default 1024 if HZ_1024
2393 
2394 source "kernel/Kconfig.preempt"
2395 
2396 config KEXEC
2397         bool "Kexec system call"
2398         help
2399           kexec is a system call that implements the ability to shutdown your
2400           current kernel, and to start another kernel.  It is like a reboot
2401           but it is independent of the system firmware.   And like a reboot
2402           you can start any kernel with it, not just Linux.
2403 
2404           The name comes from the similarity to the exec system call.
2405 
2406           It is an ongoing process to be certain the hardware in a machine
2407           is properly shutdown, so do not be surprised if this code does not
2408           initially work for you.  As of this writing the exact hardware
2409           interface is strongly in flux, so no good recommendation can be
2410           made.
2411 
2412 config CRASH_DUMP
2413           bool "Kernel crash dumps"
2414           help
2415           Generate crash dump after being started by kexec.
2416           This should be normally only set in special crash dump kernels
2417           which are loaded in the main kernel with kexec-tools into
2418           a specially reserved region and then later executed after
2419           a crash by kdump/kexec. The crash dump kernel must be compiled
2420           to a memory address not used by the main kernel or firmware using
2421           PHYSICAL_START.
2422 
2423 config PHYSICAL_START
2424           hex "Physical address where the kernel is loaded"
2425           default "0xffffffff84000000" if 64BIT
2426           default "0x84000000" if 32BIT
2427           depends on CRASH_DUMP
2428           help
2429           This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2430           If you plan to use kernel for capturing the crash dump change
2431           this value to start of the reserved region (the "X" value as
2432           specified in the "crashkernel=YM@XM" command line boot parameter
2433           passed to the panic-ed kernel).
2434 
2435 config SECCOMP
2436         bool "Enable seccomp to safely compute untrusted bytecode"
2437         depends on PROC_FS
2438         default y
2439         help
2440           This kernel feature is useful for number crunching applications
2441           that may need to compute untrusted bytecode during their
2442           execution. By using pipes or other transports made available to
2443           the process as file descriptors supporting the read/write
2444           syscalls, it's possible to isolate those applications in
2445           their own address space using seccomp. Once seccomp is
2446           enabled via /proc/<pid>/seccomp, it cannot be disabled
2447           and the task is only allowed to execute a few safe syscalls
2448           defined by each seccomp mode.
2449 
2450           If unsure, say Y. Only embedded should say N here.
2451 
2452 config MIPS_O32_FP64_SUPPORT
2453         bool "Support for O32 binaries using 64-bit FP (EXPERIMENTAL)"
2454         depends on 32BIT || MIPS32_O32
2455         help
2456           When this is enabled, the kernel will support use of 64-bit floating
2457           point registers with binaries using the O32 ABI along with the
2458           EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2459           32-bit MIPS systems this support is at the cost of increasing the
2460           size and complexity of the compiled FPU emulator. Thus if you are
2461           running a MIPS32 system and know that none of your userland binaries
2462           will require 64-bit floating point, you may wish to reduce the size
2463           of your kernel & potentially improve FP emulation performance by
2464           saying N here.
2465 
2466           Although binutils currently supports use of this flag the details
2467           concerning its effect upon the O32 ABI in userland are still being
2468           worked on. In order to avoid userland becoming dependant upon current
2469           behaviour before the details have been finalised, this option should
2470           be considered experimental and only enabled by those working upon
2471           said details.
2472 
2473           If unsure, say N.
2474 
2475 config USE_OF
2476         bool
2477         select OF
2478         select OF_EARLY_FLATTREE
2479         select IRQ_DOMAIN
2480 
2481 endmenu
2482 
2483 config LOCKDEP_SUPPORT
2484         bool
2485         default y
2486 
2487 config STACKTRACE_SUPPORT
2488         bool
2489         default y
2490 
2491 source "init/Kconfig"
2492 
2493 source "kernel/Kconfig.freezer"
2494 
2495 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2496 
2497 config HW_HAS_EISA
2498         bool
2499 config HW_HAS_PCI
2500         bool
2501 
2502 config PCI
2503         bool "Support for PCI controller"
2504         depends on HW_HAS_PCI
2505         select PCI_DOMAINS
2506         select NO_GENERIC_PCI_IOPORT_MAP
2507         help
2508           Find out whether you have a PCI motherboard. PCI is the name of a
2509           bus system, i.e. the way the CPU talks to the other stuff inside
2510           your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2511           say Y, otherwise N.
2512 
2513 config HT_PCI
2514         bool "Support for HT-linked PCI"
2515         default y
2516         depends on CPU_LOONGSON3
2517         select PCI
2518         select PCI_DOMAINS
2519         help
2520           Loongson family machines use Hyper-Transport bus for inter-core
2521           connection and device connection. The PCI bus is a subordinate
2522           linked at HT. Choose Y for Loongson-3 based machines.
2523 
2524 config PCI_DOMAINS
2525         bool
2526 
2527 source "drivers/pci/Kconfig"
2528 
2529 source "drivers/pci/pcie/Kconfig"
2530 
2531 #
2532 # ISA support is now enabled via select.  Too many systems still have the one
2533 # or other ISA chip on the board that users don't know about so don't expect
2534 # users to choose the right thing ...
2535 #
2536 config ISA
2537         bool
2538 
2539 config EISA
2540         bool "EISA support"
2541         depends on HW_HAS_EISA
2542         select ISA
2543         select GENERIC_ISA_DMA
2544         ---help---
2545           The Extended Industry Standard Architecture (EISA) bus was
2546           developed as an open alternative to the IBM MicroChannel bus.
2547 
2548           The EISA bus provided some of the features of the IBM MicroChannel
2549           bus while maintaining backward compatibility with cards made for
2550           the older ISA bus.  The EISA bus saw limited use between 1988 and
2551           1995 when it was made obsolete by the PCI bus.
2552 
2553           Say Y here if you are building a kernel for an EISA-based machine.
2554 
2555           Otherwise, say N.
2556 
2557 source "drivers/eisa/Kconfig"
2558 
2559 config TC
2560         bool "TURBOchannel support"
2561         depends on MACH_DECSTATION
2562         help
2563           TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2564           processors.  TURBOchannel programming specifications are available
2565           at:
2566           <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2567           and:
2568           <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2569           Linux driver support status is documented at:
2570           <http://www.linux-mips.org/wiki/DECstation>
2571 
2572 config MMU
2573         bool
2574         default y
2575 
2576 config I8253
2577         bool
2578         select CLKSRC_I8253
2579         select CLKEVT_I8253
2580         select MIPS_EXTERNAL_TIMER
2581 
2582 config ZONE_DMA
2583         bool
2584 
2585 config ZONE_DMA32
2586         bool
2587 
2588 source "drivers/pcmcia/Kconfig"
2589 
2590 source "drivers/pci/hotplug/Kconfig"
2591 
2592 config RAPIDIO
2593         tristate "RapidIO support"
2594         depends on PCI
2595         default n
2596         help
2597           If you say Y here, the kernel will include drivers and
2598           infrastructure code to support RapidIO interconnect devices.
2599 
2600 source "drivers/rapidio/Kconfig"
2601 
2602 endmenu
2603 
2604 menu "Executable file formats"
2605 
2606 source "fs/Kconfig.binfmt"
2607 
2608 config TRAD_SIGNALS
2609         bool
2610 
2611 config MIPS32_COMPAT
2612         bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2613         depends on 64BIT
2614         help
2615           Select this option if you want Linux/MIPS 32-bit binary
2616           compatibility. Since all software available for Linux/MIPS is
2617           currently 32-bit you should say Y here.
2618 
2619 config COMPAT
2620         bool
2621         depends on MIPS32_COMPAT
2622         select ARCH_WANT_OLD_COMPAT_IPC
2623         default y
2624 
2625 config SYSVIPC_COMPAT
2626         bool
2627         depends on COMPAT && SYSVIPC
2628         default y
2629 
2630 config MIPS32_O32
2631         bool "Kernel support for o32 binaries"
2632         depends on MIPS32_COMPAT
2633         help
2634           Select this option if you want to run o32 binaries.  These are pure
2635           32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
2636           existing binaries are in this format.
2637 
2638           If unsure, say Y.
2639 
2640 config MIPS32_N32
2641         bool "Kernel support for n32 binaries"
2642         depends on MIPS32_COMPAT
2643         help
2644           Select this option if you want to run n32 binaries.  These are
2645           64-bit binaries using 32-bit quantities for addressing and certain
2646           data that would normally be 64-bit.  They are used in special
2647           cases.
2648 
2649           If unsure, say N.
2650 
2651 config BINFMT_ELF32
2652         bool
2653         default y if MIPS32_O32 || MIPS32_N32
2654 
2655 endmenu
2656 
2657 menu "Power management options"
2658 
2659 config ARCH_HIBERNATION_POSSIBLE
2660         def_bool y
2661         depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2662 
2663 config ARCH_SUSPEND_POSSIBLE
2664         def_bool y
2665         depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2666 
2667 source "kernel/power/Kconfig"
2668 
2669 endmenu
2670 
2671 config MIPS_EXTERNAL_TIMER
2672         bool
2673 
2674 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
2675 menu "CPU Power Management"
2676 source "drivers/cpufreq/Kconfig"
2677 endmenu
2678 endif
2679 
2680 source "net/Kconfig"
2681 
2682 source "drivers/Kconfig"
2683 
2684 source "drivers/firmware/Kconfig"
2685 
2686 source "fs/Kconfig"
2687 
2688 source "arch/mips/Kconfig.debug"
2689 
2690 source "security/Kconfig"
2691 
2692 source "crypto/Kconfig"
2693 
2694 source "lib/Kconfig"
2695 
2696 source "arch/mips/kvm/Kconfig"

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