Version:  2.0.40 2.2.26 2.4.37 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17 3.18 3.19 4.0 4.1 4.2 4.3 4.4

Linux/arch/mips/Kconfig

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

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