Version:  2.0.40 2.2.26 2.4.37 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 3.16 3.17

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 HAVE_BPF_JIT if !CPU_MICROMIPS
 16         select ARCH_HAVE_CUSTOM_GPIO_H
 17         select HAVE_FUNCTION_TRACER
 18         select HAVE_DYNAMIC_FTRACE
 19         select HAVE_FTRACE_MCOUNT_RECORD
 20         select HAVE_C_RECORDMCOUNT
 21         select HAVE_FUNCTION_GRAPH_TRACER
 22         select HAVE_KPROBES
 23         select HAVE_KRETPROBES
 24         select HAVE_DEBUG_KMEMLEAK
 25         select HAVE_SYSCALL_TRACEPOINTS
 26         select ARCH_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         select CPU_PM if CPU_IDLE
 54         select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
 55 
 56 menu "Machine selection"
 57 
 58 choice
 59         prompt "System type"
 60         default SGI_IP22
 61 
 62 config MIPS_ALCHEMY
 63         bool "Alchemy processor based machines"
 64         select 64BIT_PHYS_ADDR
 65         select CEVT_R4K
 66         select CSRC_R4K
 67         select IRQ_CPU
 68         select DMA_MAYBE_COHERENT       # Au1000,1500,1100 aren't, rest is
 69         select SYS_HAS_CPU_MIPS32_R1
 70         select SYS_SUPPORTS_32BIT_KERNEL
 71         select SYS_SUPPORTS_APM_EMULATION
 72         select ARCH_REQUIRE_GPIOLIB
 73         select SYS_SUPPORTS_ZBOOT
 74         select COMMON_CLK
 75 
 76 config AR7
 77         bool "Texas Instruments AR7"
 78         select BOOT_ELF32
 79         select DMA_NONCOHERENT
 80         select CEVT_R4K
 81         select CSRC_R4K
 82         select IRQ_CPU
 83         select NO_EXCEPT_FILL
 84         select SWAP_IO_SPACE
 85         select SYS_HAS_CPU_MIPS32_R1
 86         select SYS_HAS_EARLY_PRINTK
 87         select SYS_SUPPORTS_32BIT_KERNEL
 88         select SYS_SUPPORTS_LITTLE_ENDIAN
 89         select SYS_SUPPORTS_MIPS16
 90         select SYS_SUPPORTS_ZBOOT_UART16550
 91         select ARCH_REQUIRE_GPIOLIB
 92         select VLYNQ
 93         select HAVE_CLK
 94         help
 95           Support for the Texas Instruments AR7 System-on-a-Chip
 96           family: TNETD7100, 7200 and 7300.
 97 
 98 config ATH79
 99         bool "Atheros AR71XX/AR724X/AR913X based boards"
100         select ARCH_REQUIRE_GPIOLIB
101         select BOOT_RAW
102         select CEVT_R4K
103         select CSRC_R4K
104         select DMA_NONCOHERENT
105         select HAVE_CLK
106         select CLKDEV_LOOKUP
107         select IRQ_CPU
108         select MIPS_MACHINE
109         select SYS_HAS_CPU_MIPS32_R2
110         select SYS_HAS_EARLY_PRINTK
111         select SYS_SUPPORTS_32BIT_KERNEL
112         select SYS_SUPPORTS_BIG_ENDIAN
113         select SYS_SUPPORTS_MIPS16
114         help
115           Support for the Atheros AR71XX/AR724X/AR913X SoCs.
116 
117 config BCM47XX
118         bool "Broadcom BCM47XX based boards"
119         select ARCH_WANT_OPTIONAL_GPIOLIB
120         select BOOT_RAW
121         select CEVT_R4K
122         select CSRC_R4K
123         select DMA_NONCOHERENT
124         select HW_HAS_PCI
125         select IRQ_CPU
126         select SYS_HAS_CPU_MIPS32_R1
127         select NO_EXCEPT_FILL
128         select SYS_SUPPORTS_32BIT_KERNEL
129         select SYS_SUPPORTS_LITTLE_ENDIAN
130         select SYS_SUPPORTS_MIPS16
131         select SYS_HAS_EARLY_PRINTK
132         select USE_GENERIC_EARLY_PRINTK_8250
133         select GPIOLIB
134         select LEDS_GPIO_REGISTER
135         help
136          Support for BCM47XX based boards
137 
138 config BCM63XX
139         bool "Broadcom BCM63XX based boards"
140         select BOOT_RAW
141         select CEVT_R4K
142         select CSRC_R4K
143         select SYNC_R4K
144         select DMA_NONCOHERENT
145         select IRQ_CPU
146         select SYS_SUPPORTS_32BIT_KERNEL
147         select SYS_SUPPORTS_BIG_ENDIAN
148         select SYS_HAS_EARLY_PRINTK
149         select SWAP_IO_SPACE
150         select ARCH_REQUIRE_GPIOLIB
151         select HAVE_CLK
152         select MIPS_L1_CACHE_SHIFT_4
153         help
154          Support for BCM63XX based boards
155 
156 config MIPS_COBALT
157         bool "Cobalt Server"
158         select CEVT_R4K
159         select CSRC_R4K
160         select CEVT_GT641XX
161         select DMA_NONCOHERENT
162         select HW_HAS_PCI
163         select I8253
164         select I8259
165         select IRQ_CPU
166         select IRQ_GT641XX
167         select PCI_GT64XXX_PCI0
168         select PCI
169         select SYS_HAS_CPU_NEVADA
170         select SYS_HAS_EARLY_PRINTK
171         select SYS_SUPPORTS_32BIT_KERNEL
172         select SYS_SUPPORTS_64BIT_KERNEL
173         select SYS_SUPPORTS_LITTLE_ENDIAN
174         select USE_GENERIC_EARLY_PRINTK_8250
175 
176 config MACH_DECSTATION
177         bool "DECstations"
178         select BOOT_ELF32
179         select CEVT_DS1287
180         select CEVT_R4K if CPU_R4X00
181         select CSRC_IOASIC
182         select CSRC_R4K if CPU_R4X00
183         select CPU_DADDI_WORKAROUNDS if 64BIT
184         select CPU_R4000_WORKAROUNDS if 64BIT
185         select CPU_R4400_WORKAROUNDS if 64BIT
186         select DMA_NONCOHERENT
187         select NO_IOPORT_MAP
188         select IRQ_CPU
189         select SYS_HAS_CPU_R3000
190         select SYS_HAS_CPU_R4X00
191         select SYS_SUPPORTS_32BIT_KERNEL
192         select SYS_SUPPORTS_64BIT_KERNEL
193         select SYS_SUPPORTS_LITTLE_ENDIAN
194         select SYS_SUPPORTS_128HZ
195         select SYS_SUPPORTS_256HZ
196         select SYS_SUPPORTS_1024HZ
197         select MIPS_L1_CACHE_SHIFT_4
198         help
199           This enables support for DEC's MIPS based workstations.  For details
200           see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
201           DECstation porting pages on <http://decstation.unix-ag.org/>.
202 
203           If you have one of the following DECstation Models you definitely
204           want to choose R4xx0 for the CPU Type:
205 
206                 DECstation 5000/50
207                 DECstation 5000/150
208                 DECstation 5000/260
209                 DECsystem 5900/260
210 
211           otherwise choose R3000.
212 
213 config MACH_JAZZ
214         bool "Jazz family of machines"
215         select FW_ARC
216         select FW_ARC32
217         select ARCH_MAY_HAVE_PC_FDC
218         select CEVT_R4K
219         select CSRC_R4K
220         select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
221         select GENERIC_ISA_DMA
222         select HAVE_PCSPKR_PLATFORM
223         select IRQ_CPU
224         select I8253
225         select I8259
226         select ISA
227         select SYS_HAS_CPU_R4X00
228         select SYS_SUPPORTS_32BIT_KERNEL
229         select SYS_SUPPORTS_64BIT_KERNEL
230         select SYS_SUPPORTS_100HZ
231         help
232          This a family of machines based on the MIPS R4030 chipset which was
233          used by several vendors to build RISC/os and Windows NT workstations.
234          Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
235          Olivetti M700-10 workstations.
236 
237 config MACH_JZ4740
238         bool "Ingenic JZ4740 based machines"
239         select SYS_HAS_CPU_MIPS32_R1
240         select SYS_SUPPORTS_32BIT_KERNEL
241         select SYS_SUPPORTS_LITTLE_ENDIAN
242         select SYS_SUPPORTS_ZBOOT_UART16550
243         select DMA_NONCOHERENT
244         select IRQ_CPU
245         select ARCH_REQUIRE_GPIOLIB
246         select SYS_HAS_EARLY_PRINTK
247         select HAVE_CLK
248         select GENERIC_IRQ_CHIP
249 
250 config LANTIQ
251         bool "Lantiq based platforms"
252         select DMA_NONCOHERENT
253         select IRQ_CPU
254         select CEVT_R4K
255         select CSRC_R4K
256         select SYS_HAS_CPU_MIPS32_R1
257         select SYS_HAS_CPU_MIPS32_R2
258         select SYS_SUPPORTS_BIG_ENDIAN
259         select SYS_SUPPORTS_32BIT_KERNEL
260         select SYS_SUPPORTS_MIPS16
261         select SYS_SUPPORTS_MULTITHREADING
262         select SYS_HAS_EARLY_PRINTK
263         select ARCH_REQUIRE_GPIOLIB
264         select SWAP_IO_SPACE
265         select BOOT_RAW
266         select HAVE_MACH_CLKDEV
267         select CLKDEV_LOOKUP
268         select USE_OF
269         select PINCTRL
270         select PINCTRL_LANTIQ
271 
272 config LASAT
273         bool "LASAT Networks platforms"
274         select CEVT_R4K
275         select CRC32
276         select CSRC_R4K
277         select DMA_NONCOHERENT
278         select SYS_HAS_EARLY_PRINTK
279         select HW_HAS_PCI
280         select IRQ_CPU
281         select PCI_GT64XXX_PCI0
282         select MIPS_NILE4
283         select R5000_CPU_SCACHE
284         select SYS_HAS_CPU_R5000
285         select SYS_SUPPORTS_32BIT_KERNEL
286         select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
287         select SYS_SUPPORTS_LITTLE_ENDIAN
288 
289 config MACH_LOONGSON
290         bool "Loongson family of machines"
291         select SYS_SUPPORTS_ZBOOT
292         help
293           This enables the support of Loongson family of machines.
294 
295           Loongson is a family of general-purpose MIPS-compatible CPUs.
296           developed at Institute of Computing Technology (ICT),
297           Chinese Academy of Sciences (CAS) in the People's Republic
298           of China. The chief architect is Professor Weiwu Hu.
299 
300 config MACH_LOONGSON1
301         bool "Loongson 1 family of machines"
302         select SYS_SUPPORTS_ZBOOT
303         help
304           This enables support for the Loongson 1 based machines.
305 
306           Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
307           the ICT (Institute of Computing Technology) and the Chinese Academy
308           of Sciences.
309 
310 config MIPS_MALTA
311         bool "MIPS Malta board"
312         select ARCH_MAY_HAVE_PC_FDC
313         select BOOT_ELF32
314         select BOOT_RAW
315         select CEVT_R4K
316         select CSRC_R4K
317         select CSRC_GIC
318         select DMA_MAYBE_COHERENT
319         select GENERIC_ISA_DMA
320         select HAVE_PCSPKR_PLATFORM
321         select IRQ_CPU
322         select IRQ_GIC
323         select HW_HAS_PCI
324         select I8253
325         select I8259
326         select MIPS_BONITO64
327         select MIPS_CPU_SCACHE
328         select PCI_GT64XXX_PCI0
329         select MIPS_MSC
330         select SWAP_IO_SPACE
331         select SYS_HAS_CPU_MIPS32_R1
332         select SYS_HAS_CPU_MIPS32_R2
333         select SYS_HAS_CPU_MIPS32_R3_5
334         select SYS_HAS_CPU_MIPS64_R1
335         select SYS_HAS_CPU_MIPS64_R2
336         select SYS_HAS_CPU_NEVADA
337         select SYS_HAS_CPU_RM7000
338         select SYS_SUPPORTS_32BIT_KERNEL
339         select SYS_SUPPORTS_64BIT_KERNEL
340         select SYS_SUPPORTS_BIG_ENDIAN
341         select SYS_SUPPORTS_LITTLE_ENDIAN
342         select SYS_SUPPORTS_MIPS_CMP
343         select SYS_SUPPORTS_MIPS_CPS
344         select SYS_SUPPORTS_MIPS16
345         select SYS_SUPPORTS_MULTITHREADING
346         select SYS_SUPPORTS_SMARTMIPS
347         select SYS_SUPPORTS_ZBOOT
348         help
349           This enables support for the MIPS Technologies Malta evaluation
350           board.
351 
352 config MIPS_SEAD3
353         bool "MIPS SEAD3 board"
354         select BOOT_ELF32
355         select BOOT_RAW
356         select CEVT_R4K
357         select CSRC_R4K
358         select CSRC_GIC
359         select CPU_MIPSR2_IRQ_VI
360         select CPU_MIPSR2_IRQ_EI
361         select DMA_NONCOHERENT
362         select IRQ_CPU
363         select IRQ_GIC
364         select LIBFDT
365         select MIPS_MSC
366         select SYS_HAS_CPU_MIPS32_R1
367         select SYS_HAS_CPU_MIPS32_R2
368         select SYS_HAS_CPU_MIPS64_R1
369         select SYS_HAS_EARLY_PRINTK
370         select SYS_SUPPORTS_32BIT_KERNEL
371         select SYS_SUPPORTS_64BIT_KERNEL
372         select SYS_SUPPORTS_BIG_ENDIAN
373         select SYS_SUPPORTS_LITTLE_ENDIAN
374         select SYS_SUPPORTS_SMARTMIPS
375         select SYS_SUPPORTS_MICROMIPS
376         select SYS_SUPPORTS_MIPS16
377         select USB_EHCI_BIG_ENDIAN_DESC
378         select USB_EHCI_BIG_ENDIAN_MMIO
379         select USE_OF
380         help
381           This enables support for the MIPS Technologies SEAD3 evaluation
382           board.
383 
384 config NEC_MARKEINS
385         bool "NEC EMMA2RH Mark-eins board"
386         select SOC_EMMA2RH
387         select HW_HAS_PCI
388         help
389           This enables support for the NEC Electronics Mark-eins boards.
390 
391 config MACH_VR41XX
392         bool "NEC VR4100 series based machines"
393         select CEVT_R4K
394         select CSRC_R4K
395         select SYS_HAS_CPU_VR41XX
396         select SYS_SUPPORTS_MIPS16
397         select ARCH_REQUIRE_GPIOLIB
398 
399 config NXP_STB220
400         bool "NXP STB220 board"
401         select SOC_PNX833X
402         help
403          Support for NXP Semiconductors STB220 Development Board.
404 
405 config NXP_STB225
406         bool "NXP 225 board"
407         select SOC_PNX833X
408         select SOC_PNX8335
409         help
410          Support for NXP Semiconductors STB225 Development Board.
411 
412 config PMC_MSP
413         bool "PMC-Sierra MSP chipsets"
414         select CEVT_R4K
415         select CSRC_R4K
416         select DMA_NONCOHERENT
417         select SWAP_IO_SPACE
418         select NO_EXCEPT_FILL
419         select BOOT_RAW
420         select SYS_HAS_CPU_MIPS32_R1
421         select SYS_HAS_CPU_MIPS32_R2
422         select SYS_SUPPORTS_32BIT_KERNEL
423         select SYS_SUPPORTS_BIG_ENDIAN
424         select SYS_SUPPORTS_MIPS16
425         select IRQ_CPU
426         select SERIAL_8250
427         select SERIAL_8250_CONSOLE
428         select USB_EHCI_BIG_ENDIAN_MMIO
429         select USB_EHCI_BIG_ENDIAN_DESC
430         help
431           This adds support for the PMC-Sierra family of Multi-Service
432           Processor System-On-A-Chips.  These parts include a number
433           of integrated peripherals, interfaces and DSPs in addition to
434           a variety of MIPS cores.
435 
436 config RALINK
437         bool "Ralink based machines"
438         select CEVT_R4K
439         select CSRC_R4K
440         select BOOT_RAW
441         select DMA_NONCOHERENT
442         select IRQ_CPU
443         select USE_OF
444         select SYS_HAS_CPU_MIPS32_R1
445         select SYS_HAS_CPU_MIPS32_R2
446         select SYS_SUPPORTS_32BIT_KERNEL
447         select SYS_SUPPORTS_LITTLE_ENDIAN
448         select SYS_SUPPORTS_MIPS16
449         select SYS_HAS_EARLY_PRINTK
450         select HAVE_MACH_CLKDEV
451         select CLKDEV_LOOKUP
452         select ARCH_HAS_RESET_CONTROLLER
453         select RESET_CONTROLLER
454 
455 config SGI_IP22
456         bool "SGI IP22 (Indy/Indigo2)"
457         select FW_ARC
458         select FW_ARC32
459         select BOOT_ELF32
460         select CEVT_R4K
461         select CSRC_R4K
462         select DEFAULT_SGI_PARTITION
463         select DMA_NONCOHERENT
464         select HW_HAS_EISA
465         select I8253
466         select I8259
467         select IP22_CPU_SCACHE
468         select IRQ_CPU
469         select GENERIC_ISA_DMA_SUPPORT_BROKEN
470         select SGI_HAS_I8042
471         select SGI_HAS_INDYDOG
472         select SGI_HAS_HAL2
473         select SGI_HAS_SEEQ
474         select SGI_HAS_WD93
475         select SGI_HAS_ZILOG
476         select SWAP_IO_SPACE
477         select SYS_HAS_CPU_R4X00
478         select SYS_HAS_CPU_R5000
479         #
480         # Disable EARLY_PRINTK for now since it leads to overwritten prom
481         # memory during early boot on some machines.
482         #
483         # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
484         # for a more details discussion
485         #
486         # select SYS_HAS_EARLY_PRINTK
487         select SYS_SUPPORTS_32BIT_KERNEL
488         select SYS_SUPPORTS_64BIT_KERNEL
489         select SYS_SUPPORTS_BIG_ENDIAN
490         select MIPS_L1_CACHE_SHIFT_7
491         help
492           This are the SGI Indy, Challenge S and Indigo2, as well as certain
493           OEM variants like the Tandem CMN B006S. To compile a Linux kernel
494           that runs on these, say Y here.
495 
496 config SGI_IP27
497         bool "SGI IP27 (Origin200/2000)"
498         select FW_ARC
499         select FW_ARC64
500         select BOOT_ELF64
501         select DEFAULT_SGI_PARTITION
502         select DMA_COHERENT
503         select SYS_HAS_EARLY_PRINTK
504         select HW_HAS_PCI
505         select NR_CPUS_DEFAULT_64
506         select SYS_HAS_CPU_R10000
507         select SYS_SUPPORTS_64BIT_KERNEL
508         select SYS_SUPPORTS_BIG_ENDIAN
509         select SYS_SUPPORTS_NUMA
510         select SYS_SUPPORTS_SMP
511         select MIPS_L1_CACHE_SHIFT_7
512         help
513           This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
514           workstations.  To compile a Linux kernel that runs on these, say Y
515           here.
516 
517 config SGI_IP28
518         bool "SGI IP28 (Indigo2 R10k)"
519         select FW_ARC
520         select FW_ARC64
521         select BOOT_ELF64
522         select CEVT_R4K
523         select CSRC_R4K
524         select DEFAULT_SGI_PARTITION
525         select DMA_NONCOHERENT
526         select GENERIC_ISA_DMA_SUPPORT_BROKEN
527         select IRQ_CPU
528         select HW_HAS_EISA
529         select I8253
530         select I8259
531         select SGI_HAS_I8042
532         select SGI_HAS_INDYDOG
533         select SGI_HAS_HAL2
534         select SGI_HAS_SEEQ
535         select SGI_HAS_WD93
536         select SGI_HAS_ZILOG
537         select SWAP_IO_SPACE
538         select SYS_HAS_CPU_R10000
539         #
540         # Disable EARLY_PRINTK for now since it leads to overwritten prom
541         # memory during early boot on some machines.
542         #
543         # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
544         # for a more details discussion
545         #
546         # select SYS_HAS_EARLY_PRINTK
547         select SYS_SUPPORTS_64BIT_KERNEL
548         select SYS_SUPPORTS_BIG_ENDIAN
549         select MIPS_L1_CACHE_SHIFT_7
550       help
551         This is the SGI Indigo2 with R10000 processor.  To compile a Linux
552         kernel that runs on these, say Y here.
553 
554 config SGI_IP32
555         bool "SGI IP32 (O2)"
556         select FW_ARC
557         select FW_ARC32
558         select BOOT_ELF32
559         select CEVT_R4K
560         select CSRC_R4K
561         select DMA_NONCOHERENT
562         select HW_HAS_PCI
563         select IRQ_CPU
564         select R5000_CPU_SCACHE
565         select RM7000_CPU_SCACHE
566         select SYS_HAS_CPU_R5000
567         select SYS_HAS_CPU_R10000 if BROKEN
568         select SYS_HAS_CPU_RM7000
569         select SYS_HAS_CPU_NEVADA
570         select SYS_SUPPORTS_64BIT_KERNEL
571         select SYS_SUPPORTS_BIG_ENDIAN
572         help
573           If you want this kernel to run on SGI O2 workstation, say Y here.
574 
575 config SIBYTE_CRHINE
576         bool "Sibyte BCM91120C-CRhine"
577         select BOOT_ELF32
578         select DMA_COHERENT
579         select SIBYTE_BCM1120
580         select SWAP_IO_SPACE
581         select SYS_HAS_CPU_SB1
582         select SYS_SUPPORTS_BIG_ENDIAN
583         select SYS_SUPPORTS_LITTLE_ENDIAN
584 
585 config SIBYTE_CARMEL
586         bool "Sibyte BCM91120x-Carmel"
587         select BOOT_ELF32
588         select DMA_COHERENT
589         select SIBYTE_BCM1120
590         select SWAP_IO_SPACE
591         select SYS_HAS_CPU_SB1
592         select SYS_SUPPORTS_BIG_ENDIAN
593         select SYS_SUPPORTS_LITTLE_ENDIAN
594 
595 config SIBYTE_CRHONE
596         bool "Sibyte BCM91125C-CRhone"
597         select BOOT_ELF32
598         select DMA_COHERENT
599         select SIBYTE_BCM1125
600         select SWAP_IO_SPACE
601         select SYS_HAS_CPU_SB1
602         select SYS_SUPPORTS_BIG_ENDIAN
603         select SYS_SUPPORTS_HIGHMEM
604         select SYS_SUPPORTS_LITTLE_ENDIAN
605 
606 config SIBYTE_RHONE
607         bool "Sibyte BCM91125E-Rhone"
608         select BOOT_ELF32
609         select DMA_COHERENT
610         select SIBYTE_BCM1125H
611         select SWAP_IO_SPACE
612         select SYS_HAS_CPU_SB1
613         select SYS_SUPPORTS_BIG_ENDIAN
614         select SYS_SUPPORTS_LITTLE_ENDIAN
615 
616 config SIBYTE_SWARM
617         bool "Sibyte BCM91250A-SWARM"
618         select BOOT_ELF32
619         select DMA_COHERENT
620         select HAVE_PATA_PLATFORM
621         select SIBYTE_SB1250
622         select SWAP_IO_SPACE
623         select SYS_HAS_CPU_SB1
624         select SYS_SUPPORTS_BIG_ENDIAN
625         select SYS_SUPPORTS_HIGHMEM
626         select SYS_SUPPORTS_LITTLE_ENDIAN
627         select ZONE_DMA32 if 64BIT
628 
629 config SIBYTE_LITTLESUR
630         bool "Sibyte BCM91250C2-LittleSur"
631         select BOOT_ELF32
632         select DMA_COHERENT
633         select HAVE_PATA_PLATFORM
634         select SIBYTE_SB1250
635         select SWAP_IO_SPACE
636         select SYS_HAS_CPU_SB1
637         select SYS_SUPPORTS_BIG_ENDIAN
638         select SYS_SUPPORTS_HIGHMEM
639         select SYS_SUPPORTS_LITTLE_ENDIAN
640 
641 config SIBYTE_SENTOSA
642         bool "Sibyte BCM91250E-Sentosa"
643         select BOOT_ELF32
644         select DMA_COHERENT
645         select SIBYTE_SB1250
646         select SWAP_IO_SPACE
647         select SYS_HAS_CPU_SB1
648         select SYS_SUPPORTS_BIG_ENDIAN
649         select SYS_SUPPORTS_LITTLE_ENDIAN
650 
651 config SIBYTE_BIGSUR
652         bool "Sibyte BCM91480B-BigSur"
653         select BOOT_ELF32
654         select DMA_COHERENT
655         select NR_CPUS_DEFAULT_4
656         select SIBYTE_BCM1x80
657         select SWAP_IO_SPACE
658         select SYS_HAS_CPU_SB1
659         select SYS_SUPPORTS_BIG_ENDIAN
660         select SYS_SUPPORTS_HIGHMEM
661         select SYS_SUPPORTS_LITTLE_ENDIAN
662         select ZONE_DMA32 if 64BIT
663 
664 config SNI_RM
665         bool "SNI RM200/300/400"
666         select FW_ARC if CPU_LITTLE_ENDIAN
667         select FW_ARC32 if CPU_LITTLE_ENDIAN
668         select FW_SNIPROM if CPU_BIG_ENDIAN
669         select ARCH_MAY_HAVE_PC_FDC
670         select BOOT_ELF32
671         select CEVT_R4K
672         select CSRC_R4K
673         select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
674         select DMA_NONCOHERENT
675         select GENERIC_ISA_DMA
676         select HAVE_PCSPKR_PLATFORM
677         select HW_HAS_EISA
678         select HW_HAS_PCI
679         select IRQ_CPU
680         select I8253
681         select I8259
682         select ISA
683         select SWAP_IO_SPACE if CPU_BIG_ENDIAN
684         select SYS_HAS_CPU_R4X00
685         select SYS_HAS_CPU_R5000
686         select SYS_HAS_CPU_R10000
687         select R5000_CPU_SCACHE
688         select SYS_HAS_EARLY_PRINTK
689         select SYS_SUPPORTS_32BIT_KERNEL
690         select SYS_SUPPORTS_64BIT_KERNEL
691         select SYS_SUPPORTS_BIG_ENDIAN
692         select SYS_SUPPORTS_HIGHMEM
693         select SYS_SUPPORTS_LITTLE_ENDIAN
694         help
695           The SNI RM200/300/400 are MIPS-based machines manufactured by
696           Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
697           Technology and now in turn merged with Fujitsu.  Say Y here to
698           support this machine type.
699 
700 config MACH_TX39XX
701         bool "Toshiba TX39 series based machines"
702 
703 config MACH_TX49XX
704         bool "Toshiba TX49 series based machines"
705 
706 config MIKROTIK_RB532
707         bool "Mikrotik RB532 boards"
708         select CEVT_R4K
709         select CSRC_R4K
710         select DMA_NONCOHERENT
711         select HW_HAS_PCI
712         select IRQ_CPU
713         select SYS_HAS_CPU_MIPS32_R1
714         select SYS_SUPPORTS_32BIT_KERNEL
715         select SYS_SUPPORTS_LITTLE_ENDIAN
716         select SWAP_IO_SPACE
717         select BOOT_RAW
718         select ARCH_REQUIRE_GPIOLIB
719         select MIPS_L1_CACHE_SHIFT_4
720         help
721           Support the Mikrotik(tm) RouterBoard 532 series,
722           based on the IDT RC32434 SoC.
723 
724 config CAVIUM_OCTEON_SOC
725         bool "Cavium Networks Octeon SoC based boards"
726         select CEVT_R4K
727         select 64BIT_PHYS_ADDR
728         select DMA_COHERENT
729         select SYS_SUPPORTS_64BIT_KERNEL
730         select SYS_SUPPORTS_BIG_ENDIAN
731         select EDAC_SUPPORT
732         select SYS_SUPPORTS_HOTPLUG_CPU
733         select SYS_HAS_EARLY_PRINTK
734         select SYS_HAS_CPU_CAVIUM_OCTEON
735         select SWAP_IO_SPACE
736         select HW_HAS_PCI
737         select ZONE_DMA32
738         select HOLES_IN_ZONE
739         select ARCH_REQUIRE_GPIOLIB
740         select LIBFDT
741         select USE_OF
742         select ARCH_SPARSEMEM_ENABLE
743         select SYS_SUPPORTS_SMP
744         select NR_CPUS_DEFAULT_16
745         help
746           This option supports all of the Octeon reference boards from Cavium
747           Networks. It builds a kernel that dynamically determines the Octeon
748           CPU type and supports all known board reference implementations.
749           Some of the supported boards are:
750                 EBT3000
751                 EBH3000
752                 EBH3100
753                 Thunder
754                 Kodama
755                 Hikari
756           Say Y here for most Octeon reference boards.
757 
758 config NLM_XLR_BOARD
759         bool "Netlogic XLR/XLS based systems"
760         select BOOT_ELF32
761         select NLM_COMMON
762         select SYS_HAS_CPU_XLR
763         select SYS_SUPPORTS_SMP
764         select HW_HAS_PCI
765         select SWAP_IO_SPACE
766         select SYS_SUPPORTS_32BIT_KERNEL
767         select SYS_SUPPORTS_64BIT_KERNEL
768         select 64BIT_PHYS_ADDR
769         select SYS_SUPPORTS_BIG_ENDIAN
770         select SYS_SUPPORTS_HIGHMEM
771         select DMA_COHERENT
772         select NR_CPUS_DEFAULT_32
773         select CEVT_R4K
774         select CSRC_R4K
775         select IRQ_CPU
776         select ZONE_DMA32 if 64BIT
777         select SYNC_R4K
778         select SYS_HAS_EARLY_PRINTK
779         select SYS_SUPPORTS_ZBOOT
780         select SYS_SUPPORTS_ZBOOT_UART16550
781         help
782           Support for systems based on Netlogic XLR and XLS processors.
783           Say Y here if you have a XLR or XLS based board.
784 
785 config NLM_XLP_BOARD
786         bool "Netlogic XLP based systems"
787         select BOOT_ELF32
788         select NLM_COMMON
789         select SYS_HAS_CPU_XLP
790         select SYS_SUPPORTS_SMP
791         select HW_HAS_PCI
792         select SYS_SUPPORTS_32BIT_KERNEL
793         select SYS_SUPPORTS_64BIT_KERNEL
794         select 64BIT_PHYS_ADDR
795         select SYS_SUPPORTS_BIG_ENDIAN
796         select SYS_SUPPORTS_LITTLE_ENDIAN
797         select SYS_SUPPORTS_HIGHMEM
798         select DMA_COHERENT
799         select NR_CPUS_DEFAULT_32
800         select CEVT_R4K
801         select CSRC_R4K
802         select IRQ_CPU
803         select ZONE_DMA32 if 64BIT
804         select SYNC_R4K
805         select SYS_HAS_EARLY_PRINTK
806         select USE_OF
807         select SYS_SUPPORTS_ZBOOT
808         select SYS_SUPPORTS_ZBOOT_UART16550
809         help
810           This board is based on Netlogic XLP Processor.
811           Say Y here if you have a XLP based board.
812 
813 config MIPS_PARAVIRT
814         bool "Para-Virtualized guest system"
815         select CEVT_R4K
816         select CSRC_R4K
817         select DMA_COHERENT
818         select SYS_SUPPORTS_64BIT_KERNEL
819         select SYS_SUPPORTS_32BIT_KERNEL
820         select SYS_SUPPORTS_BIG_ENDIAN
821         select SYS_SUPPORTS_SMP
822         select NR_CPUS_DEFAULT_4
823         select SYS_HAS_EARLY_PRINTK
824         select SYS_HAS_CPU_MIPS32_R2
825         select SYS_HAS_CPU_MIPS64_R2
826         select SYS_HAS_CPU_CAVIUM_OCTEON
827         select HW_HAS_PCI
828         select SWAP_IO_SPACE
829         help
830           This option supports guest running under ????
831 
832 endchoice
833 
834 source "arch/mips/alchemy/Kconfig"
835 source "arch/mips/ath79/Kconfig"
836 source "arch/mips/bcm47xx/Kconfig"
837 source "arch/mips/bcm63xx/Kconfig"
838 source "arch/mips/jazz/Kconfig"
839 source "arch/mips/jz4740/Kconfig"
840 source "arch/mips/lantiq/Kconfig"
841 source "arch/mips/lasat/Kconfig"
842 source "arch/mips/pmcs-msp71xx/Kconfig"
843 source "arch/mips/ralink/Kconfig"
844 source "arch/mips/sgi-ip27/Kconfig"
845 source "arch/mips/sibyte/Kconfig"
846 source "arch/mips/txx9/Kconfig"
847 source "arch/mips/vr41xx/Kconfig"
848 source "arch/mips/cavium-octeon/Kconfig"
849 source "arch/mips/loongson/Kconfig"
850 source "arch/mips/loongson1/Kconfig"
851 source "arch/mips/netlogic/Kconfig"
852 source "arch/mips/paravirt/Kconfig"
853 
854 endmenu
855 
856 config RWSEM_GENERIC_SPINLOCK
857         bool
858         default y
859 
860 config RWSEM_XCHGADD_ALGORITHM
861         bool
862 
863 config ARCH_HAS_ILOG2_U32
864         bool
865         default n
866 
867 config ARCH_HAS_ILOG2_U64
868         bool
869         default n
870 
871 config GENERIC_HWEIGHT
872         bool
873         default y
874 
875 config GENERIC_CALIBRATE_DELAY
876         bool
877         default y
878 
879 config SCHED_OMIT_FRAME_POINTER
880         bool
881         default y
882 
883 #
884 # Select some configuration options automatically based on user selections.
885 #
886 config FW_ARC
887         bool
888 
889 config ARCH_MAY_HAVE_PC_FDC
890         bool
891 
892 config BOOT_RAW
893         bool
894 
895 config CEVT_BCM1480
896         bool
897 
898 config CEVT_DS1287
899         bool
900 
901 config CEVT_GT641XX
902         bool
903 
904 config CEVT_R4K
905         bool
906 
907 config CEVT_GIC
908         select MIPS_CM
909         bool
910 
911 config CEVT_SB1250
912         bool
913 
914 config CEVT_TXX9
915         bool
916 
917 config CSRC_BCM1480
918         bool
919 
920 config CSRC_IOASIC
921         bool
922 
923 config CSRC_R4K
924         bool
925 
926 config CSRC_GIC
927         select MIPS_CM
928         bool
929 
930 config CSRC_SB1250
931         bool
932 
933 config GPIO_TXX9
934         select ARCH_REQUIRE_GPIOLIB
935         bool
936 
937 config FW_CFE
938         bool
939 
940 config ARCH_DMA_ADDR_T_64BIT
941         def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
942 
943 config DMA_MAYBE_COHERENT
944         select DMA_NONCOHERENT
945         bool
946 
947 config DMA_COHERENT
948         bool
949 
950 config DMA_NONCOHERENT
951         bool
952         select NEED_DMA_MAP_STATE
953 
954 config NEED_DMA_MAP_STATE
955         bool
956 
957 config SYS_HAS_EARLY_PRINTK
958         bool
959 
960 config HOTPLUG_CPU
961         bool "Support for hot-pluggable CPUs"
962         depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
963         help
964           Say Y here to allow turning CPUs off and on. CPUs can be
965           controlled through /sys/devices/system/cpu.
966           (Note: power management support will enable this option
967             automatically on SMP systems. )
968           Say N if you want to disable CPU hotplug.
969 
970 config SYS_SUPPORTS_HOTPLUG_CPU
971         bool
972 
973 config I8259
974         bool
975 
976 config MIPS_BONITO64
977         bool
978 
979 config MIPS_MSC
980         bool
981 
982 config MIPS_NILE4
983         bool
984 
985 config SYNC_R4K
986         bool
987 
988 config MIPS_MACHINE
989         def_bool n
990 
991 config NO_IOPORT_MAP
992         def_bool n
993 
994 config GENERIC_ISA_DMA
995         bool
996         select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
997         select ISA_DMA_API
998 
999 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1000         bool
1001         select GENERIC_ISA_DMA
1002 
1003 config ISA_DMA_API
1004         bool
1005 
1006 config HOLES_IN_ZONE
1007         bool
1008 
1009 #
1010 # Endianness selection.  Sufficiently obscure so many users don't know what to
1011 # answer,so we try hard to limit the available choices.  Also the use of a
1012 # choice statement should be more obvious to the user.
1013 #
1014 choice
1015         prompt "Endianness selection"
1016         help
1017           Some MIPS machines can be configured for either little or big endian
1018           byte order. These modes require different kernels and a different
1019           Linux distribution.  In general there is one preferred byteorder for a
1020           particular system but some systems are just as commonly used in the
1021           one or the other endianness.
1022 
1023 config CPU_BIG_ENDIAN
1024         bool "Big endian"
1025         depends on SYS_SUPPORTS_BIG_ENDIAN
1026 
1027 config CPU_LITTLE_ENDIAN
1028         bool "Little endian"
1029         depends on SYS_SUPPORTS_LITTLE_ENDIAN
1030 
1031 endchoice
1032 
1033 config EXPORT_UASM
1034         bool
1035 
1036 config SYS_SUPPORTS_APM_EMULATION
1037         bool
1038 
1039 config SYS_SUPPORTS_BIG_ENDIAN
1040         bool
1041 
1042 config SYS_SUPPORTS_LITTLE_ENDIAN
1043         bool
1044 
1045 config SYS_SUPPORTS_HUGETLBFS
1046         bool
1047         depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1048         default y
1049 
1050 config MIPS_HUGE_TLB_SUPPORT
1051         def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1052 
1053 config IRQ_CPU
1054         bool
1055 
1056 config IRQ_CPU_RM7K
1057         bool
1058 
1059 config IRQ_MSP_SLP
1060         bool
1061 
1062 config IRQ_MSP_CIC
1063         bool
1064 
1065 config IRQ_TXX9
1066         bool
1067 
1068 config IRQ_GT641XX
1069         bool
1070 
1071 config IRQ_GIC
1072         select MIPS_CM
1073         bool
1074 
1075 config PCI_GT64XXX_PCI0
1076         bool
1077 
1078 config NO_EXCEPT_FILL
1079         bool
1080 
1081 config SOC_EMMA2RH
1082         bool
1083         select CEVT_R4K
1084         select CSRC_R4K
1085         select DMA_NONCOHERENT
1086         select IRQ_CPU
1087         select SWAP_IO_SPACE
1088         select SYS_HAS_CPU_R5500
1089         select SYS_SUPPORTS_32BIT_KERNEL
1090         select SYS_SUPPORTS_64BIT_KERNEL
1091         select SYS_SUPPORTS_BIG_ENDIAN
1092 
1093 config SOC_PNX833X
1094         bool
1095         select CEVT_R4K
1096         select CSRC_R4K
1097         select IRQ_CPU
1098         select DMA_NONCOHERENT
1099         select SYS_HAS_CPU_MIPS32_R2
1100         select SYS_SUPPORTS_32BIT_KERNEL
1101         select SYS_SUPPORTS_LITTLE_ENDIAN
1102         select SYS_SUPPORTS_BIG_ENDIAN
1103         select SYS_SUPPORTS_MIPS16
1104         select CPU_MIPSR2_IRQ_VI
1105 
1106 config SOC_PNX8335
1107         bool
1108         select SOC_PNX833X
1109 
1110 config SWAP_IO_SPACE
1111         bool
1112 
1113 config SGI_HAS_INDYDOG
1114         bool
1115 
1116 config SGI_HAS_HAL2
1117         bool
1118 
1119 config SGI_HAS_SEEQ
1120         bool
1121 
1122 config SGI_HAS_WD93
1123         bool
1124 
1125 config SGI_HAS_ZILOG
1126         bool
1127 
1128 config SGI_HAS_I8042
1129         bool
1130 
1131 config DEFAULT_SGI_PARTITION
1132         bool
1133 
1134 config FW_ARC32
1135         bool
1136 
1137 config FW_SNIPROM
1138         bool
1139 
1140 config BOOT_ELF32
1141         bool
1142 
1143 config MIPS_L1_CACHE_SHIFT_4
1144         bool
1145 
1146 config MIPS_L1_CACHE_SHIFT_5
1147         bool
1148 
1149 config MIPS_L1_CACHE_SHIFT_6
1150         bool
1151 
1152 config MIPS_L1_CACHE_SHIFT_7
1153         bool
1154 
1155 config MIPS_L1_CACHE_SHIFT
1156         int
1157         default "4" if MIPS_L1_CACHE_SHIFT_4
1158         default "5" if MIPS_L1_CACHE_SHIFT_5
1159         default "6" if MIPS_L1_CACHE_SHIFT_6
1160         default "7" if MIPS_L1_CACHE_SHIFT_7
1161         default "5"
1162 
1163 config HAVE_STD_PC_SERIAL_PORT
1164         bool
1165 
1166 config ARC_CONSOLE
1167         bool "ARC console support"
1168         depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1169 
1170 config ARC_MEMORY
1171         bool
1172         depends on MACH_JAZZ || SNI_RM || SGI_IP32
1173         default y
1174 
1175 config ARC_PROMLIB
1176         bool
1177         depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1178         default y
1179 
1180 config FW_ARC64
1181         bool
1182 
1183 config BOOT_ELF64
1184         bool
1185 
1186 menu "CPU selection"
1187 
1188 choice
1189         prompt "CPU type"
1190         default CPU_R4X00
1191 
1192 config CPU_LOONGSON3
1193         bool "Loongson 3 CPU"
1194         depends on SYS_HAS_CPU_LOONGSON3
1195         select CPU_SUPPORTS_64BIT_KERNEL
1196         select CPU_SUPPORTS_HIGHMEM
1197         select CPU_SUPPORTS_HUGEPAGES
1198         select WEAK_ORDERING
1199         select WEAK_REORDERING_BEYOND_LLSC
1200         help
1201                 The Loongson 3 processor implements the MIPS64R2 instruction
1202                 set with many extensions.
1203 
1204 config CPU_LOONGSON2E
1205         bool "Loongson 2E"
1206         depends on SYS_HAS_CPU_LOONGSON2E
1207         select CPU_LOONGSON2
1208         help
1209           The Loongson 2E processor implements the MIPS III instruction set
1210           with many extensions.
1211 
1212           It has an internal FPGA northbridge, which is compatible to
1213           bonito64.
1214 
1215 config CPU_LOONGSON2F
1216         bool "Loongson 2F"
1217         depends on SYS_HAS_CPU_LOONGSON2F
1218         select CPU_LOONGSON2
1219         select ARCH_REQUIRE_GPIOLIB
1220         help
1221           The Loongson 2F processor implements the MIPS III instruction set
1222           with many extensions.
1223 
1224           Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1225           have a similar programming interface with FPGA northbridge used in
1226           Loongson2E.
1227 
1228 config CPU_LOONGSON1B
1229         bool "Loongson 1B"
1230         depends on SYS_HAS_CPU_LOONGSON1B
1231         select CPU_LOONGSON1
1232         help
1233           The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1234           release 2 instruction set.
1235 
1236 config CPU_MIPS32_R1
1237         bool "MIPS32 Release 1"
1238         depends on SYS_HAS_CPU_MIPS32_R1
1239         select CPU_HAS_PREFETCH
1240         select CPU_SUPPORTS_32BIT_KERNEL
1241         select CPU_SUPPORTS_HIGHMEM
1242         help
1243           Choose this option to build a kernel for release 1 or later of the
1244           MIPS32 architecture.  Most modern embedded systems with a 32-bit
1245           MIPS processor are based on a MIPS32 processor.  If you know the
1246           specific type of processor in your system, choose those that one
1247           otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1248           Release 2 of the MIPS32 architecture is available since several
1249           years so chances are you even have a MIPS32 Release 2 processor
1250           in which case you should choose CPU_MIPS32_R2 instead for better
1251           performance.
1252 
1253 config CPU_MIPS32_R2
1254         bool "MIPS32 Release 2"
1255         depends on SYS_HAS_CPU_MIPS32_R2
1256         select CPU_HAS_PREFETCH
1257         select CPU_SUPPORTS_32BIT_KERNEL
1258         select CPU_SUPPORTS_HIGHMEM
1259         select CPU_SUPPORTS_MSA
1260         select HAVE_KVM
1261         help
1262           Choose this option to build a kernel for release 2 or later of the
1263           MIPS32 architecture.  Most modern embedded systems with a 32-bit
1264           MIPS processor are based on a MIPS32 processor.  If you know the
1265           specific type of processor in your system, choose those that one
1266           otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1267 
1268 config CPU_MIPS64_R1
1269         bool "MIPS64 Release 1"
1270         depends on SYS_HAS_CPU_MIPS64_R1
1271         select CPU_HAS_PREFETCH
1272         select CPU_SUPPORTS_32BIT_KERNEL
1273         select CPU_SUPPORTS_64BIT_KERNEL
1274         select CPU_SUPPORTS_HIGHMEM
1275         select CPU_SUPPORTS_HUGEPAGES
1276         help
1277           Choose this option to build a kernel for release 1 or later of the
1278           MIPS64 architecture.  Many modern embedded systems with a 64-bit
1279           MIPS processor are based on a MIPS64 processor.  If you know the
1280           specific type of processor in your system, choose those that one
1281           otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1282           Release 2 of the MIPS64 architecture is available since several
1283           years so chances are you even have a MIPS64 Release 2 processor
1284           in which case you should choose CPU_MIPS64_R2 instead for better
1285           performance.
1286 
1287 config CPU_MIPS64_R2
1288         bool "MIPS64 Release 2"
1289         depends on SYS_HAS_CPU_MIPS64_R2
1290         select CPU_HAS_PREFETCH
1291         select CPU_SUPPORTS_32BIT_KERNEL
1292         select CPU_SUPPORTS_64BIT_KERNEL
1293         select CPU_SUPPORTS_HIGHMEM
1294         select CPU_SUPPORTS_HUGEPAGES
1295         select CPU_SUPPORTS_MSA
1296         help
1297           Choose this option to build a kernel for release 2 or later of the
1298           MIPS64 architecture.  Many modern embedded systems with a 64-bit
1299           MIPS processor are based on a MIPS64 processor.  If you know the
1300           specific type of processor in your system, choose those that one
1301           otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1302 
1303 config CPU_R3000
1304         bool "R3000"
1305         depends on SYS_HAS_CPU_R3000
1306         select CPU_HAS_WB
1307         select CPU_SUPPORTS_32BIT_KERNEL
1308         select CPU_SUPPORTS_HIGHMEM
1309         help
1310           Please make sure to pick the right CPU type. Linux/MIPS is not
1311           designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1312           *not* work on R4000 machines and vice versa.  However, since most
1313           of the supported machines have an R4000 (or similar) CPU, R4x00
1314           might be a safe bet.  If the resulting kernel does not work,
1315           try to recompile with R3000.
1316 
1317 config CPU_TX39XX
1318         bool "R39XX"
1319         depends on SYS_HAS_CPU_TX39XX
1320         select CPU_SUPPORTS_32BIT_KERNEL
1321 
1322 config CPU_VR41XX
1323         bool "R41xx"
1324         depends on SYS_HAS_CPU_VR41XX
1325         select CPU_SUPPORTS_32BIT_KERNEL
1326         select CPU_SUPPORTS_64BIT_KERNEL
1327         help
1328           The options selects support for the NEC VR4100 series of processors.
1329           Only choose this option if you have one of these processors as a
1330           kernel built with this option will not run on any other type of
1331           processor or vice versa.
1332 
1333 config CPU_R4300
1334         bool "R4300"
1335         depends on SYS_HAS_CPU_R4300
1336         select CPU_SUPPORTS_32BIT_KERNEL
1337         select CPU_SUPPORTS_64BIT_KERNEL
1338         help
1339           MIPS Technologies R4300-series processors.
1340 
1341 config CPU_R4X00
1342         bool "R4x00"
1343         depends on SYS_HAS_CPU_R4X00
1344         select CPU_SUPPORTS_32BIT_KERNEL
1345         select CPU_SUPPORTS_64BIT_KERNEL
1346         select CPU_SUPPORTS_HUGEPAGES
1347         help
1348           MIPS Technologies R4000-series processors other than 4300, including
1349           the R4000, R4400, R4600, and 4700.
1350 
1351 config CPU_TX49XX
1352         bool "R49XX"
1353         depends on SYS_HAS_CPU_TX49XX
1354         select CPU_HAS_PREFETCH
1355         select CPU_SUPPORTS_32BIT_KERNEL
1356         select CPU_SUPPORTS_64BIT_KERNEL
1357         select CPU_SUPPORTS_HUGEPAGES
1358 
1359 config CPU_R5000
1360         bool "R5000"
1361         depends on SYS_HAS_CPU_R5000
1362         select CPU_SUPPORTS_32BIT_KERNEL
1363         select CPU_SUPPORTS_64BIT_KERNEL
1364         select CPU_SUPPORTS_HUGEPAGES
1365         help
1366           MIPS Technologies R5000-series processors other than the Nevada.
1367 
1368 config CPU_R5432
1369         bool "R5432"
1370         depends on SYS_HAS_CPU_R5432
1371         select CPU_SUPPORTS_32BIT_KERNEL
1372         select CPU_SUPPORTS_64BIT_KERNEL
1373         select CPU_SUPPORTS_HUGEPAGES
1374 
1375 config CPU_R5500
1376         bool "R5500"
1377         depends on SYS_HAS_CPU_R5500
1378         select CPU_SUPPORTS_32BIT_KERNEL
1379         select CPU_SUPPORTS_64BIT_KERNEL
1380         select CPU_SUPPORTS_HUGEPAGES
1381         help
1382           NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1383           instruction set.
1384 
1385 config CPU_R6000
1386         bool "R6000"
1387         depends on SYS_HAS_CPU_R6000
1388         select CPU_SUPPORTS_32BIT_KERNEL
1389         help
1390           MIPS Technologies R6000 and R6000A series processors.  Note these
1391           processors are extremely rare and the support for them is incomplete.
1392 
1393 config CPU_NEVADA
1394         bool "RM52xx"
1395         depends on SYS_HAS_CPU_NEVADA
1396         select CPU_SUPPORTS_32BIT_KERNEL
1397         select CPU_SUPPORTS_64BIT_KERNEL
1398         select CPU_SUPPORTS_HUGEPAGES
1399         help
1400           QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1401 
1402 config CPU_R8000
1403         bool "R8000"
1404         depends on SYS_HAS_CPU_R8000
1405         select CPU_HAS_PREFETCH
1406         select CPU_SUPPORTS_64BIT_KERNEL
1407         help
1408           MIPS Technologies R8000 processors.  Note these processors are
1409           uncommon and the support for them is incomplete.
1410 
1411 config CPU_R10000
1412         bool "R10000"
1413         depends on SYS_HAS_CPU_R10000
1414         select CPU_HAS_PREFETCH
1415         select CPU_SUPPORTS_32BIT_KERNEL
1416         select CPU_SUPPORTS_64BIT_KERNEL
1417         select CPU_SUPPORTS_HIGHMEM
1418         select CPU_SUPPORTS_HUGEPAGES
1419         help
1420           MIPS Technologies R10000-series processors.
1421 
1422 config CPU_RM7000
1423         bool "RM7000"
1424         depends on SYS_HAS_CPU_RM7000
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 
1431 config CPU_SB1
1432         bool "SB1"
1433         depends on SYS_HAS_CPU_SB1
1434         select CPU_SUPPORTS_32BIT_KERNEL
1435         select CPU_SUPPORTS_64BIT_KERNEL
1436         select CPU_SUPPORTS_HIGHMEM
1437         select CPU_SUPPORTS_HUGEPAGES
1438         select WEAK_ORDERING
1439 
1440 config CPU_CAVIUM_OCTEON
1441         bool "Cavium Octeon processor"
1442         depends on SYS_HAS_CPU_CAVIUM_OCTEON
1443         select CPU_HAS_PREFETCH
1444         select CPU_SUPPORTS_64BIT_KERNEL
1445         select WEAK_ORDERING
1446         select CPU_SUPPORTS_HIGHMEM
1447         select CPU_SUPPORTS_HUGEPAGES
1448         select USB_EHCI_BIG_ENDIAN_MMIO
1449         select MIPS_L1_CACHE_SHIFT_7
1450         help
1451           The Cavium Octeon processor is a highly integrated chip containing
1452           many ethernet hardware widgets for networking tasks. The processor
1453           can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1454           Full details can be found at http://www.caviumnetworks.com.
1455 
1456 config CPU_BMIPS
1457         bool "Broadcom BMIPS"
1458         depends on SYS_HAS_CPU_BMIPS
1459         select CPU_MIPS32
1460         select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1461         select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1462         select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1463         select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1464         select CPU_SUPPORTS_32BIT_KERNEL
1465         select DMA_NONCOHERENT
1466         select IRQ_CPU
1467         select SWAP_IO_SPACE
1468         select WEAK_ORDERING
1469         select CPU_SUPPORTS_HIGHMEM
1470         select CPU_HAS_PREFETCH
1471         help
1472           Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1473 
1474 config CPU_XLR
1475         bool "Netlogic XLR SoC"
1476         depends on SYS_HAS_CPU_XLR
1477         select CPU_SUPPORTS_32BIT_KERNEL
1478         select CPU_SUPPORTS_64BIT_KERNEL
1479         select CPU_SUPPORTS_HIGHMEM
1480         select CPU_SUPPORTS_HUGEPAGES
1481         select WEAK_ORDERING
1482         select WEAK_REORDERING_BEYOND_LLSC
1483         help
1484           Netlogic Microsystems XLR/XLS processors.
1485 
1486 config CPU_XLP
1487         bool "Netlogic XLP SoC"
1488         depends on SYS_HAS_CPU_XLP
1489         select CPU_SUPPORTS_32BIT_KERNEL
1490         select CPU_SUPPORTS_64BIT_KERNEL
1491         select CPU_SUPPORTS_HIGHMEM
1492         select WEAK_ORDERING
1493         select WEAK_REORDERING_BEYOND_LLSC
1494         select CPU_HAS_PREFETCH
1495         select CPU_MIPSR2
1496         help
1497           Netlogic Microsystems XLP processors.
1498 endchoice
1499 
1500 config CPU_MIPS32_3_5_FEATURES
1501         bool "MIPS32 Release 3.5 Features"
1502         depends on SYS_HAS_CPU_MIPS32_R3_5
1503         depends on CPU_MIPS32_R2
1504         help
1505           Choose this option to build a kernel for release 2 or later of the
1506           MIPS32 architecture including features from the 3.5 release such as
1507           support for Enhanced Virtual Addressing (EVA).
1508 
1509 config CPU_MIPS32_3_5_EVA
1510         bool "Enhanced Virtual Addressing (EVA)"
1511         depends on CPU_MIPS32_3_5_FEATURES
1512         select EVA
1513         default y
1514         help
1515           Choose this option if you want to enable the Enhanced Virtual
1516           Addressing (EVA) on your MIPS32 core (such as proAptiv).
1517           One of its primary benefits is an increase in the maximum size
1518           of lowmem (up to 3GB). If unsure, say 'N' here.
1519 
1520 if CPU_LOONGSON2F
1521 config CPU_NOP_WORKAROUNDS
1522         bool
1523 
1524 config CPU_JUMP_WORKAROUNDS
1525         bool
1526 
1527 config CPU_LOONGSON2F_WORKAROUNDS
1528         bool "Loongson 2F Workarounds"
1529         default y
1530         select CPU_NOP_WORKAROUNDS
1531         select CPU_JUMP_WORKAROUNDS
1532         help
1533           Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1534           require workarounds.  Without workarounds the system may hang
1535           unexpectedly.  For more information please refer to the gas
1536           -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1537 
1538           Loongson 2F03 and later have fixed these issues and no workarounds
1539           are needed.  The workarounds have no significant side effect on them
1540           but may decrease the performance of the system so this option should
1541           be disabled unless the kernel is intended to be run on 2F01 or 2F02
1542           systems.
1543 
1544           If unsure, please say Y.
1545 endif # CPU_LOONGSON2F
1546 
1547 config SYS_SUPPORTS_ZBOOT
1548         bool
1549         select HAVE_KERNEL_GZIP
1550         select HAVE_KERNEL_BZIP2
1551         select HAVE_KERNEL_LZ4
1552         select HAVE_KERNEL_LZMA
1553         select HAVE_KERNEL_LZO
1554         select HAVE_KERNEL_XZ
1555 
1556 config SYS_SUPPORTS_ZBOOT_UART16550
1557         bool
1558         select SYS_SUPPORTS_ZBOOT
1559 
1560 config CPU_LOONGSON2
1561         bool
1562         select CPU_SUPPORTS_32BIT_KERNEL
1563         select CPU_SUPPORTS_64BIT_KERNEL
1564         select CPU_SUPPORTS_HIGHMEM
1565         select CPU_SUPPORTS_HUGEPAGES
1566 
1567 config CPU_LOONGSON1
1568         bool
1569         select CPU_MIPS32
1570         select CPU_MIPSR2
1571         select CPU_HAS_PREFETCH
1572         select CPU_SUPPORTS_32BIT_KERNEL
1573         select CPU_SUPPORTS_HIGHMEM
1574 
1575 config CPU_BMIPS32_3300
1576         select SMP_UP if SMP
1577         bool
1578 
1579 config CPU_BMIPS4350
1580         bool
1581         select SYS_SUPPORTS_SMP
1582         select SYS_SUPPORTS_HOTPLUG_CPU
1583 
1584 config CPU_BMIPS4380
1585         bool
1586         select SYS_SUPPORTS_SMP
1587         select SYS_SUPPORTS_HOTPLUG_CPU
1588 
1589 config CPU_BMIPS5000
1590         bool
1591         select MIPS_CPU_SCACHE
1592         select SYS_SUPPORTS_SMP
1593         select SYS_SUPPORTS_HOTPLUG_CPU
1594 
1595 config SYS_HAS_CPU_LOONGSON3
1596         bool
1597         select CPU_SUPPORTS_CPUFREQ
1598 
1599 config SYS_HAS_CPU_LOONGSON2E
1600         bool
1601 
1602 config SYS_HAS_CPU_LOONGSON2F
1603         bool
1604         select CPU_SUPPORTS_CPUFREQ
1605         select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1606         select CPU_SUPPORTS_UNCACHED_ACCELERATED
1607 
1608 config SYS_HAS_CPU_LOONGSON1B
1609         bool
1610 
1611 config SYS_HAS_CPU_MIPS32_R1
1612         bool
1613 
1614 config SYS_HAS_CPU_MIPS32_R2
1615         bool
1616 
1617 config SYS_HAS_CPU_MIPS32_R3_5
1618         bool
1619 
1620 config SYS_HAS_CPU_MIPS64_R1
1621         bool
1622 
1623 config SYS_HAS_CPU_MIPS64_R2
1624         bool
1625 
1626 config SYS_HAS_CPU_R3000
1627         bool
1628 
1629 config SYS_HAS_CPU_TX39XX
1630         bool
1631 
1632 config SYS_HAS_CPU_VR41XX
1633         bool
1634 
1635 config SYS_HAS_CPU_R4300
1636         bool
1637 
1638 config SYS_HAS_CPU_R4X00
1639         bool
1640 
1641 config SYS_HAS_CPU_TX49XX
1642         bool
1643 
1644 config SYS_HAS_CPU_R5000
1645         bool
1646 
1647 config SYS_HAS_CPU_R5432
1648         bool
1649 
1650 config SYS_HAS_CPU_R5500
1651         bool
1652 
1653 config SYS_HAS_CPU_R6000
1654         bool
1655 
1656 config SYS_HAS_CPU_NEVADA
1657         bool
1658 
1659 config SYS_HAS_CPU_R8000
1660         bool
1661 
1662 config SYS_HAS_CPU_R10000
1663         bool
1664 
1665 config SYS_HAS_CPU_RM7000
1666         bool
1667 
1668 config SYS_HAS_CPU_SB1
1669         bool
1670 
1671 config SYS_HAS_CPU_CAVIUM_OCTEON
1672         bool
1673 
1674 config SYS_HAS_CPU_BMIPS
1675         bool
1676 
1677 config SYS_HAS_CPU_BMIPS32_3300
1678         bool
1679         select SYS_HAS_CPU_BMIPS
1680 
1681 config SYS_HAS_CPU_BMIPS4350
1682         bool
1683         select SYS_HAS_CPU_BMIPS
1684 
1685 config SYS_HAS_CPU_BMIPS4380
1686         bool
1687         select SYS_HAS_CPU_BMIPS
1688 
1689 config SYS_HAS_CPU_BMIPS5000
1690         bool
1691         select SYS_HAS_CPU_BMIPS
1692 
1693 config SYS_HAS_CPU_XLR
1694         bool
1695 
1696 config SYS_HAS_CPU_XLP
1697         bool
1698 
1699 config MIPS_MALTA_PM
1700         depends on MIPS_MALTA
1701         depends on PCI
1702         bool
1703         default y
1704 
1705 #
1706 # CPU may reorder R->R, R->W, W->R, W->W
1707 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1708 #
1709 config WEAK_ORDERING
1710         bool
1711 
1712 #
1713 # CPU may reorder reads and writes beyond LL/SC
1714 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1715 #
1716 config WEAK_REORDERING_BEYOND_LLSC
1717         bool
1718 endmenu
1719 
1720 #
1721 # These two indicate any level of the MIPS32 and MIPS64 architecture
1722 #
1723 config CPU_MIPS32
1724         bool
1725         default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1726 
1727 config CPU_MIPS64
1728         bool
1729         default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1730 
1731 #
1732 # These two indicate the revision of the architecture, either Release 1 or Release 2
1733 #
1734 config CPU_MIPSR1
1735         bool
1736         default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1737 
1738 config CPU_MIPSR2
1739         bool
1740         default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1741 
1742 config EVA
1743         bool
1744 
1745 config SYS_SUPPORTS_32BIT_KERNEL
1746         bool
1747 config SYS_SUPPORTS_64BIT_KERNEL
1748         bool
1749 config CPU_SUPPORTS_32BIT_KERNEL
1750         bool
1751 config CPU_SUPPORTS_64BIT_KERNEL
1752         bool
1753 config CPU_SUPPORTS_CPUFREQ
1754         bool
1755 config CPU_SUPPORTS_ADDRWINCFG
1756         bool
1757 config CPU_SUPPORTS_HUGEPAGES
1758         bool
1759 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1760         bool
1761 config MIPS_PGD_C0_CONTEXT
1762         bool
1763         default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1764 
1765 #
1766 # Set to y for ptrace access to watch registers.
1767 #
1768 config HARDWARE_WATCHPOINTS
1769        bool
1770        default y if CPU_MIPSR1 || CPU_MIPSR2
1771 
1772 menu "Kernel type"
1773 
1774 choice
1775         prompt "Kernel code model"
1776         help
1777           You should only select this option if you have a workload that
1778           actually benefits from 64-bit processing or if your machine has
1779           large memory.  You will only be presented a single option in this
1780           menu if your system does not support both 32-bit and 64-bit kernels.
1781 
1782 config 32BIT
1783         bool "32-bit kernel"
1784         depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1785         select TRAD_SIGNALS
1786         help
1787           Select this option if you want to build a 32-bit kernel.
1788 config 64BIT
1789         bool "64-bit kernel"
1790         depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1791         help
1792           Select this option if you want to build a 64-bit kernel.
1793 
1794 endchoice
1795 
1796 config KVM_GUEST
1797         bool "KVM Guest Kernel"
1798         depends on BROKEN_ON_SMP
1799         help
1800           Select this option if building a guest kernel for KVM (Trap & Emulate) mode
1801 
1802 config KVM_GUEST_TIMER_FREQ
1803         int "Count/Compare Timer Frequency (MHz)"
1804         depends on KVM_GUEST
1805         default 100
1806         help
1807           Set this to non-zero if building a guest kernel for KVM to skip RTC
1808           emulation when determining guest CPU Frequency. Instead, the guest's
1809           timer frequency is specified directly.
1810 
1811 choice
1812         prompt "Kernel page size"
1813         default PAGE_SIZE_4KB
1814 
1815 config PAGE_SIZE_4KB
1816         bool "4kB"
1817         depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
1818         help
1819          This option select the standard 4kB Linux page size.  On some
1820          R3000-family processors this is the only available page size.  Using
1821          4kB page size will minimize memory consumption and is therefore
1822          recommended for low memory systems.
1823 
1824 config PAGE_SIZE_8KB
1825         bool "8kB"
1826         depends on CPU_R8000 || CPU_CAVIUM_OCTEON
1827         help
1828           Using 8kB page size will result in higher performance kernel at
1829           the price of higher memory consumption.  This option is available
1830           only on R8000 and cnMIPS processors.  Note that you will need a
1831           suitable Linux distribution to support this.
1832 
1833 config PAGE_SIZE_16KB
1834         bool "16kB"
1835         depends on !CPU_R3000 && !CPU_TX39XX
1836         help
1837           Using 16kB page size will result in higher performance kernel at
1838           the price of higher memory consumption.  This option is available on
1839           all non-R3000 family processors.  Note that you will need a suitable
1840           Linux distribution to support this.
1841 
1842 config PAGE_SIZE_32KB
1843         bool "32kB"
1844         depends on CPU_CAVIUM_OCTEON
1845         help
1846           Using 32kB page size will result in higher performance kernel at
1847           the price of higher memory consumption.  This option is available
1848           only on cnMIPS cores.  Note that you will need a suitable Linux
1849           distribution to support this.
1850 
1851 config PAGE_SIZE_64KB
1852         bool "64kB"
1853         depends on !CPU_R3000 && !CPU_TX39XX
1854         help
1855           Using 64kB page size will result in higher performance kernel at
1856           the price of higher memory consumption.  This option is available on
1857           all non-R3000 family processor.  Not that at the time of this
1858           writing this option is still high experimental.
1859 
1860 endchoice
1861 
1862 config FORCE_MAX_ZONEORDER
1863         int "Maximum zone order"
1864         range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
1865         default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
1866         range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
1867         default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
1868         range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
1869         default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
1870         range 11 64
1871         default "11"
1872         help
1873           The kernel memory allocator divides physically contiguous memory
1874           blocks into "zones", where each zone is a power of two number of
1875           pages.  This option selects the largest power of two that the kernel
1876           keeps in the memory allocator.  If you need to allocate very large
1877           blocks of physically contiguous memory, then you may need to
1878           increase this value.
1879 
1880           This config option is actually maximum order plus one. For example,
1881           a value of 11 means that the largest free memory block is 2^10 pages.
1882 
1883           The page size is not necessarily 4KB.  Keep this in mind
1884           when choosing a value for this option.
1885 
1886 config CEVT_GIC
1887         bool "Use GIC global counter for clock events"
1888         depends on IRQ_GIC && !MIPS_SEAD3
1889         help
1890           Use the GIC global counter for the clock events. The R4K clock
1891           event driver is always present, so if the platform ends up not
1892           detecting a GIC, it will fall back to the R4K timer for the
1893           generation of clock events.
1894 
1895 config BOARD_SCACHE
1896         bool
1897 
1898 config IP22_CPU_SCACHE
1899         bool
1900         select BOARD_SCACHE
1901 
1902 #
1903 # Support for a MIPS32 / MIPS64 style S-caches
1904 #
1905 config MIPS_CPU_SCACHE
1906         bool
1907         select BOARD_SCACHE
1908         select MIPS_L1_CACHE_SHIFT_6
1909 
1910 config R5000_CPU_SCACHE
1911         bool
1912         select BOARD_SCACHE
1913 
1914 config RM7000_CPU_SCACHE
1915         bool
1916         select BOARD_SCACHE
1917 
1918 config SIBYTE_DMA_PAGEOPS
1919         bool "Use DMA to clear/copy pages"
1920         depends on CPU_SB1
1921         help
1922           Instead of using the CPU to zero and copy pages, use a Data Mover
1923           channel.  These DMA channels are otherwise unused by the standard
1924           SiByte Linux port.  Seems to give a small performance benefit.
1925 
1926 config CPU_HAS_PREFETCH
1927         bool
1928 
1929 config CPU_GENERIC_DUMP_TLB
1930         bool
1931         default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1932 
1933 config CPU_R4K_FPU
1934         bool
1935         default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1936 
1937 config CPU_R4K_CACHE_TLB
1938         bool
1939         default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1940 
1941 config MIPS_MT_SMP
1942         bool "MIPS MT SMP support (1 TC on each available VPE)"
1943         depends on SYS_SUPPORTS_MULTITHREADING
1944         select CPU_MIPSR2_IRQ_VI
1945         select CPU_MIPSR2_IRQ_EI
1946         select SYNC_R4K
1947         select MIPS_GIC_IPI
1948         select MIPS_MT
1949         select SMP
1950         select SMP_UP
1951         select SYS_SUPPORTS_SMP
1952         select SYS_SUPPORTS_SCHED_SMT
1953         select MIPS_PERF_SHARED_TC_COUNTERS
1954         help
1955           This is a kernel model which is known as SMVP. This is supported
1956           on cores with the MT ASE and uses the available VPEs to implement
1957           virtual processors which supports SMP. This is equivalent to the
1958           Intel Hyperthreading feature. For further information go to
1959           <http://www.imgtec.com/mips/mips-multithreading.asp>.
1960 
1961 config MIPS_MT
1962         bool
1963 
1964 config SCHED_SMT
1965         bool "SMT (multithreading) scheduler support"
1966         depends on SYS_SUPPORTS_SCHED_SMT
1967         default n
1968         help
1969           SMT scheduler support improves the CPU scheduler's decision making
1970           when dealing with MIPS MT enabled cores at a cost of slightly
1971           increased overhead in some places. If unsure say N here.
1972 
1973 config SYS_SUPPORTS_SCHED_SMT
1974         bool
1975 
1976 config SYS_SUPPORTS_MULTITHREADING
1977         bool
1978 
1979 config MIPS_MT_FPAFF
1980         bool "Dynamic FPU affinity for FP-intensive threads"
1981         default y
1982         depends on MIPS_MT_SMP
1983 
1984 config MIPS_VPE_LOADER
1985         bool "VPE loader support."
1986         depends on SYS_SUPPORTS_MULTITHREADING && MODULES
1987         select CPU_MIPSR2_IRQ_VI
1988         select CPU_MIPSR2_IRQ_EI
1989         select MIPS_MT
1990         help
1991           Includes a loader for loading an elf relocatable object
1992           onto another VPE and running it.
1993 
1994 config MIPS_VPE_LOADER_CMP
1995         bool
1996         default "y"
1997         depends on MIPS_VPE_LOADER && MIPS_CMP
1998 
1999 config MIPS_VPE_LOADER_MT
2000         bool
2001         default "y"
2002         depends on MIPS_VPE_LOADER && !MIPS_CMP
2003 
2004 config MIPS_VPE_LOADER_TOM
2005         bool "Load VPE program into memory hidden from linux"
2006         depends on MIPS_VPE_LOADER
2007         default y
2008         help
2009           The loader can use memory that is present but has been hidden from
2010           Linux using the kernel command line option "mem=xxMB". It's up to
2011           you to ensure the amount you put in the option and the space your
2012           program requires is less or equal to the amount physically present.
2013 
2014 config MIPS_VPE_APSP_API
2015         bool "Enable support for AP/SP API (RTLX)"
2016         depends on MIPS_VPE_LOADER
2017         help
2018 
2019 config MIPS_VPE_APSP_API_CMP
2020         bool
2021         default "y"
2022         depends on MIPS_VPE_APSP_API && MIPS_CMP
2023 
2024 config MIPS_VPE_APSP_API_MT
2025         bool
2026         default "y"
2027         depends on MIPS_VPE_APSP_API && !MIPS_CMP
2028 
2029 config MIPS_CMP
2030         bool "MIPS CMP framework support (DEPRECATED)"
2031         depends on SYS_SUPPORTS_MIPS_CMP
2032         select MIPS_GIC_IPI
2033         select SMP
2034         select SYNC_R4K
2035         select SYS_SUPPORTS_SMP
2036         select WEAK_ORDERING
2037         default n
2038         help
2039           Select this if you are using a bootloader which implements the "CMP
2040           framework" protocol (ie. YAMON) and want your kernel to make use of
2041           its ability to start secondary CPUs.
2042 
2043           Unless you have a specific need, you should use CONFIG_MIPS_CPS
2044           instead of this.
2045 
2046 config MIPS_CPS
2047         bool "MIPS Coherent Processing System support"
2048         depends on SYS_SUPPORTS_MIPS_CPS
2049         select MIPS_CM
2050         select MIPS_CPC
2051         select MIPS_CPS_PM if HOTPLUG_CPU
2052         select MIPS_GIC_IPI
2053         select SMP
2054         select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2055         select SYS_SUPPORTS_HOTPLUG_CPU
2056         select SYS_SUPPORTS_SMP
2057         select WEAK_ORDERING
2058         help
2059           Select this if you wish to run an SMP kernel across multiple cores
2060           within a MIPS Coherent Processing System. When this option is
2061           enabled the kernel will probe for other cores and boot them with
2062           no external assistance. It is safe to enable this when hardware
2063           support is unavailable.
2064 
2065 config MIPS_CPS_PM
2066         select MIPS_CPC
2067         bool
2068 
2069 config MIPS_GIC_IPI
2070         bool
2071 
2072 config MIPS_CM
2073         bool
2074 
2075 config MIPS_CPC
2076         bool
2077 
2078 config SB1_PASS_1_WORKAROUNDS
2079         bool
2080         depends on CPU_SB1_PASS_1
2081         default y
2082 
2083 config SB1_PASS_2_WORKAROUNDS
2084         bool
2085         depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2086         default y
2087 
2088 config SB1_PASS_2_1_WORKAROUNDS
2089         bool
2090         depends on CPU_SB1 && CPU_SB1_PASS_2
2091         default y
2092 
2093 
2094 config 64BIT_PHYS_ADDR
2095         bool
2096 
2097 config ARCH_PHYS_ADDR_T_64BIT
2098        def_bool 64BIT_PHYS_ADDR
2099 
2100 config CPU_HAS_SMARTMIPS
2101         depends on SYS_SUPPORTS_SMARTMIPS
2102         bool "Support for the SmartMIPS ASE"
2103         help
2104           SmartMIPS is a extension of the MIPS32 architecture aimed at
2105           increased security at both hardware and software level for
2106           smartcards.  Enabling this option will allow proper use of the
2107           SmartMIPS instructions by Linux applications.  However a kernel with
2108           this option will not work on a MIPS core without SmartMIPS core.  If
2109           you don't know you probably don't have SmartMIPS and should say N
2110           here.
2111 
2112 config CPU_MICROMIPS
2113         depends on SYS_SUPPORTS_MICROMIPS
2114         bool "Build kernel using microMIPS ISA"
2115         help
2116           When this option is enabled the kernel will be built using the
2117           microMIPS ISA
2118 
2119 config CPU_HAS_MSA
2120         bool "Support for the MIPS SIMD Architecture (EXPERIMENTAL)"
2121         depends on CPU_SUPPORTS_MSA
2122         depends on 64BIT || MIPS_O32_FP64_SUPPORT
2123         help
2124           MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2125           and a set of SIMD instructions to operate on them. When this option
2126           is enabled the kernel will support allocating & switching MSA
2127           vector register contexts. If you know that your kernel will only be
2128           running on CPUs which do not support MSA or that your userland will
2129           not be making use of it then you may wish to say N here to reduce
2130           the size & complexity of your kernel.
2131 
2132           If unsure, say Y.
2133 
2134 config CPU_HAS_WB
2135         bool
2136 
2137 config XKS01
2138         bool
2139 
2140 #
2141 # Vectored interrupt mode is an R2 feature
2142 #
2143 config CPU_MIPSR2_IRQ_VI
2144         bool
2145 
2146 #
2147 # Extended interrupt mode is an R2 feature
2148 #
2149 config CPU_MIPSR2_IRQ_EI
2150         bool
2151 
2152 config CPU_HAS_SYNC
2153         bool
2154         depends on !CPU_R3000
2155         default y
2156 
2157 #
2158 # CPU non-features
2159 #
2160 config CPU_DADDI_WORKAROUNDS
2161         bool
2162 
2163 config CPU_R4000_WORKAROUNDS
2164         bool
2165         select CPU_R4400_WORKAROUNDS
2166 
2167 config CPU_R4400_WORKAROUNDS
2168         bool
2169 
2170 #
2171 # - Highmem only makes sense for the 32-bit kernel.
2172 # - The current highmem code will only work properly on physically indexed
2173 #   caches such as R3000, SB1, R7000 or those that look like they're virtually
2174 #   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
2175 #   moment we protect the user and offer the highmem option only on machines
2176 #   where it's known to be safe.  This will not offer highmem on a few systems
2177 #   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2178 #   indexed CPUs but we're playing safe.
2179 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2180 #   know they might have memory configurations that could make use of highmem
2181 #   support.
2182 #
2183 config HIGHMEM
2184         bool "High Memory Support"
2185         depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2186 
2187 config CPU_SUPPORTS_HIGHMEM
2188         bool
2189 
2190 config SYS_SUPPORTS_HIGHMEM
2191         bool
2192 
2193 config SYS_SUPPORTS_SMARTMIPS
2194         bool
2195 
2196 config SYS_SUPPORTS_MICROMIPS
2197         bool
2198 
2199 config SYS_SUPPORTS_MIPS16
2200         bool
2201         help
2202           This option must be set if a kernel might be executed on a MIPS16-
2203           enabled CPU even if MIPS16 is not actually being used.  In other
2204           words, it makes the kernel MIPS16-tolerant.
2205 
2206 config CPU_SUPPORTS_MSA
2207         bool
2208 
2209 config ARCH_FLATMEM_ENABLE
2210         def_bool y
2211         depends on !NUMA && !CPU_LOONGSON2
2212 
2213 config ARCH_DISCONTIGMEM_ENABLE
2214         bool
2215         default y if SGI_IP27
2216         help
2217           Say Y to support efficient handling of discontiguous physical memory,
2218           for architectures which are either NUMA (Non-Uniform Memory Access)
2219           or have huge holes in the physical address space for other reasons.
2220           See <file:Documentation/vm/numa> for more.
2221 
2222 config ARCH_SPARSEMEM_ENABLE
2223         bool
2224         select SPARSEMEM_STATIC
2225 
2226 config NUMA
2227         bool "NUMA Support"
2228         depends on SYS_SUPPORTS_NUMA
2229         help
2230           Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2231           Access).  This option improves performance on systems with more
2232           than two nodes; on two node systems it is generally better to
2233           leave it disabled; on single node systems disable this option
2234           disabled.
2235 
2236 config SYS_SUPPORTS_NUMA
2237         bool
2238 
2239 config NODES_SHIFT
2240         int
2241         default "6"
2242         depends on NEED_MULTIPLE_NODES
2243 
2244 config HW_PERF_EVENTS
2245         bool "Enable hardware performance counter support for perf events"
2246         depends on PERF_EVENTS && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2247         default y
2248         help
2249           Enable hardware performance counter support for perf events. If
2250           disabled, perf events will use software events only.
2251 
2252 source "mm/Kconfig"
2253 
2254 config SMP
2255         bool "Multi-Processing support"
2256         depends on SYS_SUPPORTS_SMP
2257         help
2258           This enables support for systems with more than one CPU. If you have
2259           a system with only one CPU, say N. If you have a system with more
2260           than one CPU, say Y.
2261 
2262           If you say N here, the kernel will run on uni- and multiprocessor
2263           machines, but will use only one CPU of a multiprocessor machine. If
2264           you say Y here, the kernel will run on many, but not all,
2265           uniprocessor machines. On a uniprocessor machine, the kernel
2266           will run faster if you say N here.
2267 
2268           People using multiprocessor machines who say Y here should also say
2269           Y to "Enhanced Real Time Clock Support", below.
2270 
2271           See also the SMP-HOWTO available at
2272           <http://www.tldp.org/docs.html#howto>.
2273 
2274           If you don't know what to do here, say N.
2275 
2276 config SMP_UP
2277         bool
2278 
2279 config SYS_SUPPORTS_MIPS_CMP
2280         bool
2281 
2282 config SYS_SUPPORTS_MIPS_CPS
2283         bool
2284 
2285 config SYS_SUPPORTS_SMP
2286         bool
2287 
2288 config NR_CPUS_DEFAULT_4
2289         bool
2290 
2291 config NR_CPUS_DEFAULT_8
2292         bool
2293 
2294 config NR_CPUS_DEFAULT_16
2295         bool
2296 
2297 config NR_CPUS_DEFAULT_32
2298         bool
2299 
2300 config NR_CPUS_DEFAULT_64
2301         bool
2302 
2303 config NR_CPUS
2304         int "Maximum number of CPUs (2-256)"
2305         range 2 256
2306         depends on SMP
2307         default "4" if NR_CPUS_DEFAULT_4
2308         default "8" if NR_CPUS_DEFAULT_8
2309         default "16" if NR_CPUS_DEFAULT_16
2310         default "32" if NR_CPUS_DEFAULT_32
2311         default "64" if NR_CPUS_DEFAULT_64
2312         help
2313           This allows you to specify the maximum number of CPUs which this
2314           kernel will support.  The maximum supported value is 32 for 32-bit
2315           kernel and 64 for 64-bit kernels; the minimum value which makes
2316           sense is 1 for Qemu (useful only for kernel debugging purposes)
2317           and 2 for all others.
2318 
2319           This is purely to save memory - each supported CPU adds
2320           approximately eight kilobytes to the kernel image.  For best
2321           performance should round up your number of processors to the next
2322           power of two.
2323 
2324 config MIPS_PERF_SHARED_TC_COUNTERS
2325         bool
2326 
2327 #
2328 # Timer Interrupt Frequency Configuration
2329 #
2330 
2331 choice
2332         prompt "Timer frequency"
2333         default HZ_250
2334         help
2335          Allows the configuration of the timer frequency.
2336 
2337         config HZ_48
2338                 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2339 
2340         config HZ_100
2341                 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2342 
2343         config HZ_128
2344                 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2345 
2346         config HZ_250
2347                 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2348 
2349         config HZ_256
2350                 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2351 
2352         config HZ_1000
2353                 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2354 
2355         config HZ_1024
2356                 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2357 
2358 endchoice
2359 
2360 config SYS_SUPPORTS_48HZ
2361         bool
2362 
2363 config SYS_SUPPORTS_100HZ
2364         bool
2365 
2366 config SYS_SUPPORTS_128HZ
2367         bool
2368 
2369 config SYS_SUPPORTS_250HZ
2370         bool
2371 
2372 config SYS_SUPPORTS_256HZ
2373         bool
2374 
2375 config SYS_SUPPORTS_1000HZ
2376         bool
2377 
2378 config SYS_SUPPORTS_1024HZ
2379         bool
2380 
2381 config SYS_SUPPORTS_ARBIT_HZ
2382         bool
2383         default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2384                      !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2385                      !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2386                      !SYS_SUPPORTS_1024HZ
2387 
2388 config HZ
2389         int
2390         default 48 if HZ_48
2391         default 100 if HZ_100
2392         default 128 if HZ_128
2393         default 250 if HZ_250
2394         default 256 if HZ_256
2395         default 1000 if HZ_1000
2396         default 1024 if HZ_1024
2397 
2398 source "kernel/Kconfig.preempt"
2399 
2400 config KEXEC
2401         bool "Kexec system call"
2402         help
2403           kexec is a system call that implements the ability to shutdown your
2404           current kernel, and to start another kernel.  It is like a reboot
2405           but it is independent of the system firmware.   And like a reboot
2406           you can start any kernel with it, not just Linux.
2407 
2408           The name comes from the similarity to the exec system call.
2409 
2410           It is an ongoing process to be certain the hardware in a machine
2411           is properly shutdown, so do not be surprised if this code does not
2412           initially work for you.  As of this writing the exact hardware
2413           interface is strongly in flux, so no good recommendation can be
2414           made.
2415 
2416 config CRASH_DUMP
2417           bool "Kernel crash dumps"
2418           help
2419           Generate crash dump after being started by kexec.
2420           This should be normally only set in special crash dump kernels
2421           which are loaded in the main kernel with kexec-tools into
2422           a specially reserved region and then later executed after
2423           a crash by kdump/kexec. The crash dump kernel must be compiled
2424           to a memory address not used by the main kernel or firmware using
2425           PHYSICAL_START.
2426 
2427 config PHYSICAL_START
2428           hex "Physical address where the kernel is loaded"
2429           default "0xffffffff84000000" if 64BIT
2430           default "0x84000000" if 32BIT
2431           depends on CRASH_DUMP
2432           help
2433           This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2434           If you plan to use kernel for capturing the crash dump change
2435           this value to start of the reserved region (the "X" value as
2436           specified in the "crashkernel=YM@XM" command line boot parameter
2437           passed to the panic-ed kernel).
2438 
2439 config SECCOMP
2440         bool "Enable seccomp to safely compute untrusted bytecode"
2441         depends on PROC_FS
2442         default y
2443         help
2444           This kernel feature is useful for number crunching applications
2445           that may need to compute untrusted bytecode during their
2446           execution. By using pipes or other transports made available to
2447           the process as file descriptors supporting the read/write
2448           syscalls, it's possible to isolate those applications in
2449           their own address space using seccomp. Once seccomp is
2450           enabled via /proc/<pid>/seccomp, it cannot be disabled
2451           and the task is only allowed to execute a few safe syscalls
2452           defined by each seccomp mode.
2453 
2454           If unsure, say Y. Only embedded should say N here.
2455 
2456 config MIPS_O32_FP64_SUPPORT
2457         bool "Support for O32 binaries using 64-bit FP (EXPERIMENTAL)"
2458         depends on 32BIT || MIPS32_O32
2459         help
2460           When this is enabled, the kernel will support use of 64-bit floating
2461           point registers with binaries using the O32 ABI along with the
2462           EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2463           32-bit MIPS systems this support is at the cost of increasing the
2464           size and complexity of the compiled FPU emulator. Thus if you are
2465           running a MIPS32 system and know that none of your userland binaries
2466           will require 64-bit floating point, you may wish to reduce the size
2467           of your kernel & potentially improve FP emulation performance by
2468           saying N here.
2469 
2470           Although binutils currently supports use of this flag the details
2471           concerning its effect upon the O32 ABI in userland are still being
2472           worked on. In order to avoid userland becoming dependant upon current
2473           behaviour before the details have been finalised, this option should
2474           be considered experimental and only enabled by those working upon
2475           said details.
2476 
2477           If unsure, say N.
2478 
2479 config USE_OF
2480         bool
2481         select OF
2482         select OF_EARLY_FLATTREE
2483         select IRQ_DOMAIN
2484 
2485 endmenu
2486 
2487 config LOCKDEP_SUPPORT
2488         bool
2489         default y
2490 
2491 config STACKTRACE_SUPPORT
2492         bool
2493         default y
2494 
2495 source "init/Kconfig"
2496 
2497 source "kernel/Kconfig.freezer"
2498 
2499 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2500 
2501 config HW_HAS_EISA
2502         bool
2503 config HW_HAS_PCI
2504         bool
2505 
2506 config PCI
2507         bool "Support for PCI controller"
2508         depends on HW_HAS_PCI
2509         select PCI_DOMAINS
2510         select NO_GENERIC_PCI_IOPORT_MAP
2511         help
2512           Find out whether you have a PCI motherboard. PCI is the name of a
2513           bus system, i.e. the way the CPU talks to the other stuff inside
2514           your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2515           say Y, otherwise N.
2516 
2517 config HT_PCI
2518         bool "Support for HT-linked PCI"
2519         default y
2520         depends on CPU_LOONGSON3
2521         select PCI
2522         select PCI_DOMAINS
2523         help
2524           Loongson family machines use Hyper-Transport bus for inter-core
2525           connection and device connection. The PCI bus is a subordinate
2526           linked at HT. Choose Y for Loongson-3 based machines.
2527 
2528 config PCI_DOMAINS
2529         bool
2530 
2531 source "drivers/pci/Kconfig"
2532 
2533 source "drivers/pci/pcie/Kconfig"
2534 
2535 #
2536 # ISA support is now enabled via select.  Too many systems still have the one
2537 # or other ISA chip on the board that users don't know about so don't expect
2538 # users to choose the right thing ...
2539 #
2540 config ISA
2541         bool
2542 
2543 config EISA
2544         bool "EISA support"
2545         depends on HW_HAS_EISA
2546         select ISA
2547         select GENERIC_ISA_DMA
2548         ---help---
2549           The Extended Industry Standard Architecture (EISA) bus was
2550           developed as an open alternative to the IBM MicroChannel bus.
2551 
2552           The EISA bus provided some of the features of the IBM MicroChannel
2553           bus while maintaining backward compatibility with cards made for
2554           the older ISA bus.  The EISA bus saw limited use between 1988 and
2555           1995 when it was made obsolete by the PCI bus.
2556 
2557           Say Y here if you are building a kernel for an EISA-based machine.
2558 
2559           Otherwise, say N.
2560 
2561 source "drivers/eisa/Kconfig"
2562 
2563 config TC
2564         bool "TURBOchannel support"
2565         depends on MACH_DECSTATION
2566         help
2567           TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2568           processors.  TURBOchannel programming specifications are available
2569           at:
2570           <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2571           and:
2572           <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2573           Linux driver support status is documented at:
2574           <http://www.linux-mips.org/wiki/DECstation>
2575 
2576 config MMU
2577         bool
2578         default y
2579 
2580 config I8253
2581         bool
2582         select CLKSRC_I8253
2583         select CLKEVT_I8253
2584         select MIPS_EXTERNAL_TIMER
2585 
2586 config ZONE_DMA
2587         bool
2588 
2589 config ZONE_DMA32
2590         bool
2591 
2592 source "drivers/pcmcia/Kconfig"
2593 
2594 source "drivers/pci/hotplug/Kconfig"
2595 
2596 config RAPIDIO
2597         tristate "RapidIO support"
2598         depends on PCI
2599         default n
2600         help
2601           If you say Y here, the kernel will include drivers and
2602           infrastructure code to support RapidIO interconnect devices.
2603 
2604 source "drivers/rapidio/Kconfig"
2605 
2606 endmenu
2607 
2608 menu "Executable file formats"
2609 
2610 source "fs/Kconfig.binfmt"
2611 
2612 config TRAD_SIGNALS
2613         bool
2614 
2615 config MIPS32_COMPAT
2616         bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2617         depends on 64BIT
2618         help
2619           Select this option if you want Linux/MIPS 32-bit binary
2620           compatibility. Since all software available for Linux/MIPS is
2621           currently 32-bit you should say Y here.
2622 
2623 config COMPAT
2624         bool
2625         depends on MIPS32_COMPAT
2626         select ARCH_WANT_OLD_COMPAT_IPC
2627         default y
2628 
2629 config SYSVIPC_COMPAT
2630         bool
2631         depends on COMPAT && SYSVIPC
2632         default y
2633 
2634 config MIPS32_O32
2635         bool "Kernel support for o32 binaries"
2636         depends on MIPS32_COMPAT
2637         help
2638           Select this option if you want to run o32 binaries.  These are pure
2639           32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
2640           existing binaries are in this format.
2641 
2642           If unsure, say Y.
2643 
2644 config MIPS32_N32
2645         bool "Kernel support for n32 binaries"
2646         depends on MIPS32_COMPAT
2647         help
2648           Select this option if you want to run n32 binaries.  These are
2649           64-bit binaries using 32-bit quantities for addressing and certain
2650           data that would normally be 64-bit.  They are used in special
2651           cases.
2652 
2653           If unsure, say N.
2654 
2655 config BINFMT_ELF32
2656         bool
2657         default y if MIPS32_O32 || MIPS32_N32
2658 
2659 endmenu
2660 
2661 menu "Power management options"
2662 
2663 config ARCH_HIBERNATION_POSSIBLE
2664         def_bool y
2665         depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2666 
2667 config ARCH_SUSPEND_POSSIBLE
2668         def_bool y
2669         depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2670 
2671 source "kernel/power/Kconfig"
2672 
2673 endmenu
2674 
2675 config MIPS_EXTERNAL_TIMER
2676         bool
2677 
2678 menu "CPU Power Management"
2679 
2680 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
2681 source "drivers/cpufreq/Kconfig"
2682 endif
2683 
2684 source "drivers/cpuidle/Kconfig"
2685 
2686 endmenu
2687 
2688 source "net/Kconfig"
2689 
2690 source "drivers/Kconfig"
2691 
2692 source "drivers/firmware/Kconfig"
2693 
2694 source "fs/Kconfig"
2695 
2696 source "arch/mips/Kconfig.debug"
2697 
2698 source "security/Kconfig"
2699 
2700 source "crypto/Kconfig"
2701 
2702 source "lib/Kconfig"
2703 
2704 source "arch/mips/kvm/Kconfig"

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