Version:  2.0.40 2.2.26 2.4.37 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 4.5 4.6 4.7 4.8 4.9

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_CBPF_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 HAVE_DMA_CONTIGUOUS
 34         select HAVE_DMA_API_DEBUG
 35         select GENERIC_IRQ_PROBE
 36         select GENERIC_IRQ_SHOW
 37         select GENERIC_PCI_IOMAP
 38         select HAVE_ARCH_JUMP_LABEL
 39         select ARCH_WANT_IPC_PARSE_VERSION
 40         select IRQ_FORCED_THREADING
 41         select HAVE_MEMBLOCK
 42         select HAVE_MEMBLOCK_NODE_MAP
 43         select ARCH_DISCARD_MEMBLOCK
 44         select GENERIC_SMP_IDLE_THREAD
 45         select BUILDTIME_EXTABLE_SORT
 46         select GENERIC_CLOCKEVENTS
 47         select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
 48         select GENERIC_CMOS_UPDATE
 49         select HAVE_MOD_ARCH_SPECIFIC
 50         select HAVE_NMI
 51         select VIRT_TO_BUS
 52         select MODULES_USE_ELF_REL if MODULES
 53         select MODULES_USE_ELF_RELA if MODULES && 64BIT
 54         select CLONE_BACKWARDS
 55         select HAVE_DEBUG_STACKOVERFLOW
 56         select HAVE_CC_STACKPROTECTOR
 57         select CPU_PM if CPU_IDLE
 58         select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
 59         select ARCH_BINFMT_ELF_STATE
 60         select SYSCTL_EXCEPTION_TRACE
 61         select HAVE_VIRT_CPU_ACCOUNTING_GEN
 62         select HAVE_IRQ_TIME_ACCOUNTING
 63         select GENERIC_TIME_VSYSCALL
 64         select ARCH_CLOCKSOURCE_DATA
 65         select HANDLE_DOMAIN_IRQ
 66         select HAVE_EXIT_THREAD
 67         select HAVE_REGS_AND_STACK_ACCESS_API
 68         select HAVE_ARCH_HARDENED_USERCOPY
 69 
 70 menu "Machine selection"
 71 
 72 choice
 73         prompt "System type"
 74         default SGI_IP22
 75 
 76 config MIPS_GENERIC
 77         bool "Generic board-agnostic MIPS kernel"
 78         select BOOT_RAW
 79         select BUILTIN_DTB
 80         select CEVT_R4K
 81         select CLKSRC_MIPS_GIC
 82         select COMMON_CLK
 83         select CPU_MIPSR2_IRQ_VI
 84         select CPU_MIPSR2_IRQ_EI
 85         select CSRC_R4K
 86         select DMA_PERDEV_COHERENT
 87         select HW_HAS_PCI
 88         select IRQ_MIPS_CPU
 89         select LIBFDT
 90         select MIPS_CPU_SCACHE
 91         select MIPS_GIC
 92         select MIPS_L1_CACHE_SHIFT_7
 93         select NO_EXCEPT_FILL
 94         select PCI_DRIVERS_GENERIC
 95         select PINCTRL
 96         select SMP_UP if SMP
 97         select SYS_HAS_CPU_MIPS32_R1
 98         select SYS_HAS_CPU_MIPS32_R2
 99         select SYS_HAS_CPU_MIPS32_R6
100         select SYS_HAS_CPU_MIPS64_R1
101         select SYS_HAS_CPU_MIPS64_R2
102         select SYS_HAS_CPU_MIPS64_R6
103         select SYS_SUPPORTS_32BIT_KERNEL
104         select SYS_SUPPORTS_64BIT_KERNEL
105         select SYS_SUPPORTS_BIG_ENDIAN
106         select SYS_SUPPORTS_HIGHMEM
107         select SYS_SUPPORTS_LITTLE_ENDIAN
108         select SYS_SUPPORTS_MICROMIPS
109         select SYS_SUPPORTS_MIPS_CPS
110         select SYS_SUPPORTS_MIPS16
111         select SYS_SUPPORTS_MULTITHREADING
112         select SYS_SUPPORTS_RELOCATABLE
113         select SYS_SUPPORTS_SMARTMIPS
114         select USB_EHCI_BIG_ENDIAN_DESC if BIG_ENDIAN
115         select USB_EHCI_BIG_ENDIAN_MMIO if BIG_ENDIAN
116         select USB_OHCI_BIG_ENDIAN_DESC if BIG_ENDIAN
117         select USB_OHCI_BIG_ENDIAN_MMIO if BIG_ENDIAN
118         select USB_UHCI_BIG_ENDIAN_DESC if BIG_ENDIAN
119         select USB_UHCI_BIG_ENDIAN_MMIO if BIG_ENDIAN
120         select USE_OF
121         help
122           Select this to build a kernel which aims to support multiple boards,
123           generally using a flattened device tree passed from the bootloader
124           using the boot protocol defined in the UHI (Unified Hosting
125           Interface) specification.
126 
127 config MIPS_ALCHEMY
128         bool "Alchemy processor based machines"
129         select ARCH_PHYS_ADDR_T_64BIT
130         select CEVT_R4K
131         select CSRC_R4K
132         select IRQ_MIPS_CPU
133         select DMA_MAYBE_COHERENT       # Au1000,1500,1100 aren't, rest is
134         select SYS_HAS_CPU_MIPS32_R1
135         select SYS_SUPPORTS_32BIT_KERNEL
136         select SYS_SUPPORTS_APM_EMULATION
137         select GPIOLIB
138         select SYS_SUPPORTS_ZBOOT
139         select COMMON_CLK
140 
141 config AR7
142         bool "Texas Instruments AR7"
143         select BOOT_ELF32
144         select DMA_NONCOHERENT
145         select CEVT_R4K
146         select CSRC_R4K
147         select IRQ_MIPS_CPU
148         select NO_EXCEPT_FILL
149         select SWAP_IO_SPACE
150         select SYS_HAS_CPU_MIPS32_R1
151         select SYS_HAS_EARLY_PRINTK
152         select SYS_SUPPORTS_32BIT_KERNEL
153         select SYS_SUPPORTS_LITTLE_ENDIAN
154         select SYS_SUPPORTS_MIPS16
155         select SYS_SUPPORTS_ZBOOT_UART16550
156         select GPIOLIB
157         select VLYNQ
158         select HAVE_CLK
159         help
160           Support for the Texas Instruments AR7 System-on-a-Chip
161           family: TNETD7100, 7200 and 7300.
162 
163 config ATH25
164         bool "Atheros AR231x/AR531x SoC support"
165         select CEVT_R4K
166         select CSRC_R4K
167         select DMA_NONCOHERENT
168         select IRQ_MIPS_CPU
169         select IRQ_DOMAIN
170         select SYS_HAS_CPU_MIPS32_R1
171         select SYS_SUPPORTS_BIG_ENDIAN
172         select SYS_SUPPORTS_32BIT_KERNEL
173         select SYS_HAS_EARLY_PRINTK
174         help
175           Support for Atheros AR231x and Atheros AR531x based boards
176 
177 config ATH79
178         bool "Atheros AR71XX/AR724X/AR913X based boards"
179         select ARCH_HAS_RESET_CONTROLLER
180         select BOOT_RAW
181         select CEVT_R4K
182         select CSRC_R4K
183         select DMA_NONCOHERENT
184         select GPIOLIB
185         select HAVE_CLK
186         select COMMON_CLK
187         select CLKDEV_LOOKUP
188         select IRQ_MIPS_CPU
189         select MIPS_MACHINE
190         select SYS_HAS_CPU_MIPS32_R2
191         select SYS_HAS_EARLY_PRINTK
192         select SYS_SUPPORTS_32BIT_KERNEL
193         select SYS_SUPPORTS_BIG_ENDIAN
194         select SYS_SUPPORTS_MIPS16
195         select SYS_SUPPORTS_ZBOOT_UART_PROM
196         select USE_OF
197         help
198           Support for the Atheros AR71XX/AR724X/AR913X SoCs.
199 
200 config BMIPS_GENERIC
201         bool "Broadcom Generic BMIPS kernel"
202         select BOOT_RAW
203         select NO_EXCEPT_FILL
204         select USE_OF
205         select CEVT_R4K
206         select CSRC_R4K
207         select SYNC_R4K
208         select COMMON_CLK
209         select BCM6345_L1_IRQ
210         select BCM7038_L1_IRQ
211         select BCM7120_L2_IRQ
212         select BRCMSTB_L2_IRQ
213         select IRQ_MIPS_CPU
214         select DMA_NONCOHERENT
215         select SYS_SUPPORTS_32BIT_KERNEL
216         select SYS_SUPPORTS_LITTLE_ENDIAN
217         select SYS_SUPPORTS_BIG_ENDIAN
218         select SYS_SUPPORTS_HIGHMEM
219         select SYS_HAS_CPU_BMIPS32_3300
220         select SYS_HAS_CPU_BMIPS4350
221         select SYS_HAS_CPU_BMIPS4380
222         select SYS_HAS_CPU_BMIPS5000
223         select SWAP_IO_SPACE
224         select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
225         select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
226         select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
227         select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
228         help
229           Build a generic DT-based kernel image that boots on select
230           BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
231           box chips.  Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
232           must be set appropriately for your board.
233 
234 config BCM47XX
235         bool "Broadcom BCM47XX based boards"
236         select BOOT_RAW
237         select CEVT_R4K
238         select CSRC_R4K
239         select DMA_NONCOHERENT
240         select HW_HAS_PCI
241         select IRQ_MIPS_CPU
242         select SYS_HAS_CPU_MIPS32_R1
243         select NO_EXCEPT_FILL
244         select SYS_SUPPORTS_32BIT_KERNEL
245         select SYS_SUPPORTS_LITTLE_ENDIAN
246         select SYS_SUPPORTS_MIPS16
247         select SYS_HAS_EARLY_PRINTK
248         select USE_GENERIC_EARLY_PRINTK_8250
249         select GPIOLIB
250         select LEDS_GPIO_REGISTER
251         select BCM47XX_NVRAM
252         select BCM47XX_SPROM
253         help
254          Support for BCM47XX based boards
255 
256 config BCM63XX
257         bool "Broadcom BCM63XX based boards"
258         select BOOT_RAW
259         select CEVT_R4K
260         select CSRC_R4K
261         select SYNC_R4K
262         select DMA_NONCOHERENT
263         select IRQ_MIPS_CPU
264         select SYS_SUPPORTS_32BIT_KERNEL
265         select SYS_SUPPORTS_BIG_ENDIAN
266         select SYS_HAS_EARLY_PRINTK
267         select SWAP_IO_SPACE
268         select GPIOLIB
269         select HAVE_CLK
270         select MIPS_L1_CACHE_SHIFT_4
271         help
272          Support for BCM63XX based boards
273 
274 config MIPS_COBALT
275         bool "Cobalt Server"
276         select CEVT_R4K
277         select CSRC_R4K
278         select CEVT_GT641XX
279         select DMA_NONCOHERENT
280         select HW_HAS_PCI
281         select I8253
282         select I8259
283         select IRQ_MIPS_CPU
284         select IRQ_GT641XX
285         select PCI_GT64XXX_PCI0
286         select PCI
287         select SYS_HAS_CPU_NEVADA
288         select SYS_HAS_EARLY_PRINTK
289         select SYS_SUPPORTS_32BIT_KERNEL
290         select SYS_SUPPORTS_64BIT_KERNEL
291         select SYS_SUPPORTS_LITTLE_ENDIAN
292         select USE_GENERIC_EARLY_PRINTK_8250
293 
294 config MACH_DECSTATION
295         bool "DECstations"
296         select BOOT_ELF32
297         select CEVT_DS1287
298         select CEVT_R4K if CPU_R4X00
299         select CSRC_IOASIC
300         select CSRC_R4K if CPU_R4X00
301         select CPU_DADDI_WORKAROUNDS if 64BIT
302         select CPU_R4000_WORKAROUNDS if 64BIT
303         select CPU_R4400_WORKAROUNDS if 64BIT
304         select DMA_NONCOHERENT
305         select NO_IOPORT_MAP
306         select IRQ_MIPS_CPU
307         select SYS_HAS_CPU_R3000
308         select SYS_HAS_CPU_R4X00
309         select SYS_SUPPORTS_32BIT_KERNEL
310         select SYS_SUPPORTS_64BIT_KERNEL
311         select SYS_SUPPORTS_LITTLE_ENDIAN
312         select SYS_SUPPORTS_128HZ
313         select SYS_SUPPORTS_256HZ
314         select SYS_SUPPORTS_1024HZ
315         select MIPS_L1_CACHE_SHIFT_4
316         help
317           This enables support for DEC's MIPS based workstations.  For details
318           see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
319           DECstation porting pages on <http://decstation.unix-ag.org/>.
320 
321           If you have one of the following DECstation Models you definitely
322           want to choose R4xx0 for the CPU Type:
323 
324                 DECstation 5000/50
325                 DECstation 5000/150
326                 DECstation 5000/260
327                 DECsystem 5900/260
328 
329           otherwise choose R3000.
330 
331 config MACH_JAZZ
332         bool "Jazz family of machines"
333         select FW_ARC
334         select FW_ARC32
335         select ARCH_MAY_HAVE_PC_FDC
336         select CEVT_R4K
337         select CSRC_R4K
338         select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
339         select GENERIC_ISA_DMA
340         select HAVE_PCSPKR_PLATFORM
341         select IRQ_MIPS_CPU
342         select I8253
343         select I8259
344         select ISA
345         select SYS_HAS_CPU_R4X00
346         select SYS_SUPPORTS_32BIT_KERNEL
347         select SYS_SUPPORTS_64BIT_KERNEL
348         select SYS_SUPPORTS_100HZ
349         help
350          This a family of machines based on the MIPS R4030 chipset which was
351          used by several vendors to build RISC/os and Windows NT workstations.
352          Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
353          Olivetti M700-10 workstations.
354 
355 config MACH_INGENIC
356         bool "Ingenic SoC based machines"
357         select SYS_SUPPORTS_32BIT_KERNEL
358         select SYS_SUPPORTS_LITTLE_ENDIAN
359         select SYS_SUPPORTS_ZBOOT_UART16550
360         select DMA_NONCOHERENT
361         select IRQ_MIPS_CPU
362         select GPIOLIB
363         select COMMON_CLK
364         select GENERIC_IRQ_CHIP
365         select BUILTIN_DTB
366         select USE_OF
367         select LIBFDT
368 
369 config LANTIQ
370         bool "Lantiq based platforms"
371         select DMA_NONCOHERENT
372         select IRQ_MIPS_CPU
373         select CEVT_R4K
374         select CSRC_R4K
375         select SYS_HAS_CPU_MIPS32_R1
376         select SYS_HAS_CPU_MIPS32_R2
377         select SYS_SUPPORTS_BIG_ENDIAN
378         select SYS_SUPPORTS_32BIT_KERNEL
379         select SYS_SUPPORTS_MIPS16
380         select SYS_SUPPORTS_MULTITHREADING
381         select SYS_HAS_EARLY_PRINTK
382         select GPIOLIB
383         select SWAP_IO_SPACE
384         select BOOT_RAW
385         select CLKDEV_LOOKUP
386         select USE_OF
387         select PINCTRL
388         select PINCTRL_LANTIQ
389         select ARCH_HAS_RESET_CONTROLLER
390         select RESET_CONTROLLER
391 
392 config LASAT
393         bool "LASAT Networks platforms"
394         select CEVT_R4K
395         select CRC32
396         select CSRC_R4K
397         select DMA_NONCOHERENT
398         select SYS_HAS_EARLY_PRINTK
399         select HW_HAS_PCI
400         select IRQ_MIPS_CPU
401         select PCI_GT64XXX_PCI0
402         select MIPS_NILE4
403         select R5000_CPU_SCACHE
404         select SYS_HAS_CPU_R5000
405         select SYS_SUPPORTS_32BIT_KERNEL
406         select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
407         select SYS_SUPPORTS_LITTLE_ENDIAN
408 
409 config MACH_LOONGSON32
410         bool "Loongson-1 family of machines"
411         select SYS_SUPPORTS_ZBOOT
412         help
413           This enables support for the Loongson-1 family of machines.
414 
415           Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
416           the Institute of Computing Technology (ICT), Chinese Academy of
417           Sciences (CAS).
418 
419 config MACH_LOONGSON64
420         bool "Loongson-2/3 family of machines"
421         select SYS_SUPPORTS_ZBOOT
422         help
423           This enables the support of Loongson-2/3 family of machines.
424 
425           Loongson-2 is a family of single-core CPUs and Loongson-3 is a
426           family of multi-core CPUs. They are both 64-bit general-purpose
427           MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute
428           of Computing Technology (ICT), Chinese Academy of Sciences (CAS)
429           in the People's Republic of China. The chief architect is Professor
430           Weiwu Hu.
431 
432 config MACH_PISTACHIO
433         bool "IMG Pistachio SoC based boards"
434         select BOOT_ELF32
435         select BOOT_RAW
436         select CEVT_R4K
437         select CLKSRC_MIPS_GIC
438         select COMMON_CLK
439         select CSRC_R4K
440         select DMA_NONCOHERENT
441         select GPIOLIB
442         select IRQ_MIPS_CPU
443         select LIBFDT
444         select MFD_SYSCON
445         select MIPS_CPU_SCACHE
446         select MIPS_GIC
447         select PINCTRL
448         select REGULATOR
449         select SYS_HAS_CPU_MIPS32_R2
450         select SYS_SUPPORTS_32BIT_KERNEL
451         select SYS_SUPPORTS_LITTLE_ENDIAN
452         select SYS_SUPPORTS_MIPS_CPS
453         select SYS_SUPPORTS_MULTITHREADING
454         select SYS_SUPPORTS_RELOCATABLE
455         select SYS_SUPPORTS_ZBOOT
456         select SYS_HAS_EARLY_PRINTK
457         select USE_GENERIC_EARLY_PRINTK_8250
458         select USE_OF
459         help
460           This enables support for the IMG Pistachio SoC platform.
461 
462 config MACH_XILFPGA
463         bool "MIPSfpga Xilinx based boards"
464         select BOOT_ELF32
465         select BOOT_RAW
466         select BUILTIN_DTB
467         select CEVT_R4K
468         select COMMON_CLK
469         select CSRC_R4K
470         select GPIOLIB
471         select IRQ_MIPS_CPU
472         select LIBFDT
473         select MIPS_CPU_SCACHE
474         select SYS_HAS_EARLY_PRINTK
475         select SYS_HAS_CPU_MIPS32_R2
476         select SYS_SUPPORTS_32BIT_KERNEL
477         select SYS_SUPPORTS_LITTLE_ENDIAN
478         select SYS_SUPPORTS_ZBOOT_UART16550
479         select USE_OF
480         select USE_GENERIC_EARLY_PRINTK_8250
481         help
482           This enables support for the IMG University Program MIPSfpga platform.
483 
484 config MIPS_MALTA
485         bool "MIPS Malta board"
486         select ARCH_MAY_HAVE_PC_FDC
487         select BOOT_ELF32
488         select BOOT_RAW
489         select BUILTIN_DTB
490         select CEVT_R4K
491         select CSRC_R4K
492         select CLKSRC_MIPS_GIC
493         select COMMON_CLK
494         select DMA_MAYBE_COHERENT
495         select GENERIC_ISA_DMA
496         select HAVE_PCSPKR_PLATFORM
497         select IRQ_MIPS_CPU
498         select MIPS_GIC
499         select HW_HAS_PCI
500         select I8253
501         select I8259
502         select MIPS_BONITO64
503         select MIPS_CPU_SCACHE
504         select MIPS_L1_CACHE_SHIFT_6
505         select PCI_GT64XXX_PCI0
506         select MIPS_MSC
507         select SMP_UP if SMP
508         select SWAP_IO_SPACE
509         select SYS_HAS_CPU_MIPS32_R1
510         select SYS_HAS_CPU_MIPS32_R2
511         select SYS_HAS_CPU_MIPS32_R3_5
512         select SYS_HAS_CPU_MIPS32_R5
513         select SYS_HAS_CPU_MIPS32_R6
514         select SYS_HAS_CPU_MIPS64_R1
515         select SYS_HAS_CPU_MIPS64_R2
516         select SYS_HAS_CPU_MIPS64_R6
517         select SYS_HAS_CPU_NEVADA
518         select SYS_HAS_CPU_RM7000
519         select SYS_SUPPORTS_32BIT_KERNEL
520         select SYS_SUPPORTS_64BIT_KERNEL
521         select SYS_SUPPORTS_BIG_ENDIAN
522         select SYS_SUPPORTS_HIGHMEM
523         select SYS_SUPPORTS_LITTLE_ENDIAN
524         select SYS_SUPPORTS_MICROMIPS
525         select SYS_SUPPORTS_MIPS_CMP
526         select SYS_SUPPORTS_MIPS_CPS
527         select SYS_SUPPORTS_MIPS16
528         select SYS_SUPPORTS_MULTITHREADING
529         select SYS_SUPPORTS_SMARTMIPS
530         select SYS_SUPPORTS_ZBOOT
531         select SYS_SUPPORTS_RELOCATABLE
532         select USE_OF
533         select LIBFDT
534         select ZONE_DMA32 if 64BIT
535         select BUILTIN_DTB
536         select LIBFDT
537         help
538           This enables support for the MIPS Technologies Malta evaluation
539           board.
540 
541 config MACH_PIC32
542         bool "Microchip PIC32 Family"
543         help
544           This enables support for the Microchip PIC32 family of platforms.
545 
546           Microchip PIC32 is a family of general-purpose 32 bit MIPS core
547           microcontrollers.
548 
549 config NEC_MARKEINS
550         bool "NEC EMMA2RH Mark-eins board"
551         select SOC_EMMA2RH
552         select HW_HAS_PCI
553         help
554           This enables support for the NEC Electronics Mark-eins boards.
555 
556 config MACH_VR41XX
557         bool "NEC VR4100 series based machines"
558         select CEVT_R4K
559         select CSRC_R4K
560         select SYS_HAS_CPU_VR41XX
561         select SYS_SUPPORTS_MIPS16
562         select GPIOLIB
563 
564 config NXP_STB220
565         bool "NXP STB220 board"
566         select SOC_PNX833X
567         help
568          Support for NXP Semiconductors STB220 Development Board.
569 
570 config NXP_STB225
571         bool "NXP 225 board"
572         select SOC_PNX833X
573         select SOC_PNX8335
574         help
575          Support for NXP Semiconductors STB225 Development Board.
576 
577 config PMC_MSP
578         bool "PMC-Sierra MSP chipsets"
579         select CEVT_R4K
580         select CSRC_R4K
581         select DMA_NONCOHERENT
582         select SWAP_IO_SPACE
583         select NO_EXCEPT_FILL
584         select BOOT_RAW
585         select SYS_HAS_CPU_MIPS32_R1
586         select SYS_HAS_CPU_MIPS32_R2
587         select SYS_SUPPORTS_32BIT_KERNEL
588         select SYS_SUPPORTS_BIG_ENDIAN
589         select SYS_SUPPORTS_MIPS16
590         select IRQ_MIPS_CPU
591         select SERIAL_8250
592         select SERIAL_8250_CONSOLE
593         select USB_EHCI_BIG_ENDIAN_MMIO
594         select USB_EHCI_BIG_ENDIAN_DESC
595         help
596           This adds support for the PMC-Sierra family of Multi-Service
597           Processor System-On-A-Chips.  These parts include a number
598           of integrated peripherals, interfaces and DSPs in addition to
599           a variety of MIPS cores.
600 
601 config RALINK
602         bool "Ralink based machines"
603         select CEVT_R4K
604         select CSRC_R4K
605         select BOOT_RAW
606         select DMA_NONCOHERENT
607         select IRQ_MIPS_CPU
608         select USE_OF
609         select SYS_HAS_CPU_MIPS32_R1
610         select SYS_HAS_CPU_MIPS32_R2
611         select SYS_SUPPORTS_32BIT_KERNEL
612         select SYS_SUPPORTS_LITTLE_ENDIAN
613         select SYS_SUPPORTS_MIPS16
614         select SYS_HAS_EARLY_PRINTK
615         select CLKDEV_LOOKUP
616         select ARCH_HAS_RESET_CONTROLLER
617         select RESET_CONTROLLER
618 
619 config SGI_IP22
620         bool "SGI IP22 (Indy/Indigo2)"
621         select FW_ARC
622         select FW_ARC32
623         select BOOT_ELF32
624         select CEVT_R4K
625         select CSRC_R4K
626         select DEFAULT_SGI_PARTITION
627         select DMA_NONCOHERENT
628         select HW_HAS_EISA
629         select I8253
630         select I8259
631         select IP22_CPU_SCACHE
632         select IRQ_MIPS_CPU
633         select GENERIC_ISA_DMA_SUPPORT_BROKEN
634         select SGI_HAS_I8042
635         select SGI_HAS_INDYDOG
636         select SGI_HAS_HAL2
637         select SGI_HAS_SEEQ
638         select SGI_HAS_WD93
639         select SGI_HAS_ZILOG
640         select SWAP_IO_SPACE
641         select SYS_HAS_CPU_R4X00
642         select SYS_HAS_CPU_R5000
643         #
644         # Disable EARLY_PRINTK for now since it leads to overwritten prom
645         # memory during early boot on some machines.
646         #
647         # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
648         # for a more details discussion
649         #
650         # select SYS_HAS_EARLY_PRINTK
651         select SYS_SUPPORTS_32BIT_KERNEL
652         select SYS_SUPPORTS_64BIT_KERNEL
653         select SYS_SUPPORTS_BIG_ENDIAN
654         select MIPS_L1_CACHE_SHIFT_7
655         help
656           This are the SGI Indy, Challenge S and Indigo2, as well as certain
657           OEM variants like the Tandem CMN B006S. To compile a Linux kernel
658           that runs on these, say Y here.
659 
660 config SGI_IP27
661         bool "SGI IP27 (Origin200/2000)"
662         select FW_ARC
663         select FW_ARC64
664         select BOOT_ELF64
665         select DEFAULT_SGI_PARTITION
666         select DMA_COHERENT
667         select SYS_HAS_EARLY_PRINTK
668         select HW_HAS_PCI
669         select NR_CPUS_DEFAULT_64
670         select SYS_HAS_CPU_R10000
671         select SYS_SUPPORTS_64BIT_KERNEL
672         select SYS_SUPPORTS_BIG_ENDIAN
673         select SYS_SUPPORTS_NUMA
674         select SYS_SUPPORTS_SMP
675         select MIPS_L1_CACHE_SHIFT_7
676         help
677           This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
678           workstations.  To compile a Linux kernel that runs on these, say Y
679           here.
680 
681 config SGI_IP28
682         bool "SGI IP28 (Indigo2 R10k)"
683         select FW_ARC
684         select FW_ARC64
685         select BOOT_ELF64
686         select CEVT_R4K
687         select CSRC_R4K
688         select DEFAULT_SGI_PARTITION
689         select DMA_NONCOHERENT
690         select GENERIC_ISA_DMA_SUPPORT_BROKEN
691         select IRQ_MIPS_CPU
692         select HW_HAS_EISA
693         select I8253
694         select I8259
695         select SGI_HAS_I8042
696         select SGI_HAS_INDYDOG
697         select SGI_HAS_HAL2
698         select SGI_HAS_SEEQ
699         select SGI_HAS_WD93
700         select SGI_HAS_ZILOG
701         select SWAP_IO_SPACE
702         select SYS_HAS_CPU_R10000
703         #
704         # Disable EARLY_PRINTK for now since it leads to overwritten prom
705         # memory during early boot on some machines.
706         #
707         # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
708         # for a more details discussion
709         #
710         # select SYS_HAS_EARLY_PRINTK
711         select SYS_SUPPORTS_64BIT_KERNEL
712         select SYS_SUPPORTS_BIG_ENDIAN
713         select MIPS_L1_CACHE_SHIFT_7
714       help
715         This is the SGI Indigo2 with R10000 processor.  To compile a Linux
716         kernel that runs on these, say Y here.
717 
718 config SGI_IP32
719         bool "SGI IP32 (O2)"
720         select FW_ARC
721         select FW_ARC32
722         select BOOT_ELF32
723         select CEVT_R4K
724         select CSRC_R4K
725         select DMA_NONCOHERENT
726         select HW_HAS_PCI
727         select IRQ_MIPS_CPU
728         select R5000_CPU_SCACHE
729         select RM7000_CPU_SCACHE
730         select SYS_HAS_CPU_R5000
731         select SYS_HAS_CPU_R10000 if BROKEN
732         select SYS_HAS_CPU_RM7000
733         select SYS_HAS_CPU_NEVADA
734         select SYS_SUPPORTS_64BIT_KERNEL
735         select SYS_SUPPORTS_BIG_ENDIAN
736         help
737           If you want this kernel to run on SGI O2 workstation, say Y here.
738 
739 config SIBYTE_CRHINE
740         bool "Sibyte BCM91120C-CRhine"
741         select BOOT_ELF32
742         select DMA_COHERENT
743         select SIBYTE_BCM1120
744         select SWAP_IO_SPACE
745         select SYS_HAS_CPU_SB1
746         select SYS_SUPPORTS_BIG_ENDIAN
747         select SYS_SUPPORTS_LITTLE_ENDIAN
748 
749 config SIBYTE_CARMEL
750         bool "Sibyte BCM91120x-Carmel"
751         select BOOT_ELF32
752         select DMA_COHERENT
753         select SIBYTE_BCM1120
754         select SWAP_IO_SPACE
755         select SYS_HAS_CPU_SB1
756         select SYS_SUPPORTS_BIG_ENDIAN
757         select SYS_SUPPORTS_LITTLE_ENDIAN
758 
759 config SIBYTE_CRHONE
760         bool "Sibyte BCM91125C-CRhone"
761         select BOOT_ELF32
762         select DMA_COHERENT
763         select SIBYTE_BCM1125
764         select SWAP_IO_SPACE
765         select SYS_HAS_CPU_SB1
766         select SYS_SUPPORTS_BIG_ENDIAN
767         select SYS_SUPPORTS_HIGHMEM
768         select SYS_SUPPORTS_LITTLE_ENDIAN
769 
770 config SIBYTE_RHONE
771         bool "Sibyte BCM91125E-Rhone"
772         select BOOT_ELF32
773         select DMA_COHERENT
774         select SIBYTE_BCM1125H
775         select SWAP_IO_SPACE
776         select SYS_HAS_CPU_SB1
777         select SYS_SUPPORTS_BIG_ENDIAN
778         select SYS_SUPPORTS_LITTLE_ENDIAN
779 
780 config SIBYTE_SWARM
781         bool "Sibyte BCM91250A-SWARM"
782         select BOOT_ELF32
783         select DMA_COHERENT
784         select HAVE_PATA_PLATFORM
785         select SIBYTE_SB1250
786         select SWAP_IO_SPACE
787         select SYS_HAS_CPU_SB1
788         select SYS_SUPPORTS_BIG_ENDIAN
789         select SYS_SUPPORTS_HIGHMEM
790         select SYS_SUPPORTS_LITTLE_ENDIAN
791         select ZONE_DMA32 if 64BIT
792 
793 config SIBYTE_LITTLESUR
794         bool "Sibyte BCM91250C2-LittleSur"
795         select BOOT_ELF32
796         select DMA_COHERENT
797         select HAVE_PATA_PLATFORM
798         select SIBYTE_SB1250
799         select SWAP_IO_SPACE
800         select SYS_HAS_CPU_SB1
801         select SYS_SUPPORTS_BIG_ENDIAN
802         select SYS_SUPPORTS_HIGHMEM
803         select SYS_SUPPORTS_LITTLE_ENDIAN
804 
805 config SIBYTE_SENTOSA
806         bool "Sibyte BCM91250E-Sentosa"
807         select BOOT_ELF32
808         select DMA_COHERENT
809         select SIBYTE_SB1250
810         select SWAP_IO_SPACE
811         select SYS_HAS_CPU_SB1
812         select SYS_SUPPORTS_BIG_ENDIAN
813         select SYS_SUPPORTS_LITTLE_ENDIAN
814 
815 config SIBYTE_BIGSUR
816         bool "Sibyte BCM91480B-BigSur"
817         select BOOT_ELF32
818         select DMA_COHERENT
819         select NR_CPUS_DEFAULT_4
820         select SIBYTE_BCM1x80
821         select SWAP_IO_SPACE
822         select SYS_HAS_CPU_SB1
823         select SYS_SUPPORTS_BIG_ENDIAN
824         select SYS_SUPPORTS_HIGHMEM
825         select SYS_SUPPORTS_LITTLE_ENDIAN
826         select ZONE_DMA32 if 64BIT
827 
828 config SNI_RM
829         bool "SNI RM200/300/400"
830         select FW_ARC if CPU_LITTLE_ENDIAN
831         select FW_ARC32 if CPU_LITTLE_ENDIAN
832         select FW_SNIPROM if CPU_BIG_ENDIAN
833         select ARCH_MAY_HAVE_PC_FDC
834         select BOOT_ELF32
835         select CEVT_R4K
836         select CSRC_R4K
837         select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
838         select DMA_NONCOHERENT
839         select GENERIC_ISA_DMA
840         select HAVE_PCSPKR_PLATFORM
841         select HW_HAS_EISA
842         select HW_HAS_PCI
843         select IRQ_MIPS_CPU
844         select I8253
845         select I8259
846         select ISA
847         select SWAP_IO_SPACE if CPU_BIG_ENDIAN
848         select SYS_HAS_CPU_R4X00
849         select SYS_HAS_CPU_R5000
850         select SYS_HAS_CPU_R10000
851         select R5000_CPU_SCACHE
852         select SYS_HAS_EARLY_PRINTK
853         select SYS_SUPPORTS_32BIT_KERNEL
854         select SYS_SUPPORTS_64BIT_KERNEL
855         select SYS_SUPPORTS_BIG_ENDIAN
856         select SYS_SUPPORTS_HIGHMEM
857         select SYS_SUPPORTS_LITTLE_ENDIAN
858         help
859           The SNI RM200/300/400 are MIPS-based machines manufactured by
860           Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
861           Technology and now in turn merged with Fujitsu.  Say Y here to
862           support this machine type.
863 
864 config MACH_TX39XX
865         bool "Toshiba TX39 series based machines"
866 
867 config MACH_TX49XX
868         bool "Toshiba TX49 series based machines"
869 
870 config MIKROTIK_RB532
871         bool "Mikrotik RB532 boards"
872         select CEVT_R4K
873         select CSRC_R4K
874         select DMA_NONCOHERENT
875         select HW_HAS_PCI
876         select IRQ_MIPS_CPU
877         select SYS_HAS_CPU_MIPS32_R1
878         select SYS_SUPPORTS_32BIT_KERNEL
879         select SYS_SUPPORTS_LITTLE_ENDIAN
880         select SWAP_IO_SPACE
881         select BOOT_RAW
882         select GPIOLIB
883         select MIPS_L1_CACHE_SHIFT_4
884         help
885           Support the Mikrotik(tm) RouterBoard 532 series,
886           based on the IDT RC32434 SoC.
887 
888 config CAVIUM_OCTEON_SOC
889         bool "Cavium Networks Octeon SoC based boards"
890         select CEVT_R4K
891         select ARCH_PHYS_ADDR_T_64BIT
892         select DMA_COHERENT
893         select SYS_SUPPORTS_64BIT_KERNEL
894         select SYS_SUPPORTS_BIG_ENDIAN
895         select EDAC_SUPPORT
896         select EDAC_ATOMIC_SCRUB
897         select SYS_SUPPORTS_LITTLE_ENDIAN
898         select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
899         select SYS_HAS_EARLY_PRINTK
900         select SYS_HAS_CPU_CAVIUM_OCTEON
901         select HW_HAS_PCI
902         select ZONE_DMA32
903         select HOLES_IN_ZONE
904         select GPIOLIB
905         select LIBFDT
906         select USE_OF
907         select ARCH_SPARSEMEM_ENABLE
908         select SYS_SUPPORTS_SMP
909         select NR_CPUS_DEFAULT_16
910         select BUILTIN_DTB
911         select MTD_COMPLEX_MAPPINGS
912         help
913           This option supports all of the Octeon reference boards from Cavium
914           Networks. It builds a kernel that dynamically determines the Octeon
915           CPU type and supports all known board reference implementations.
916           Some of the supported boards are:
917                 EBT3000
918                 EBH3000
919                 EBH3100
920                 Thunder
921                 Kodama
922                 Hikari
923           Say Y here for most Octeon reference boards.
924 
925 config NLM_XLR_BOARD
926         bool "Netlogic XLR/XLS based systems"
927         select BOOT_ELF32
928         select NLM_COMMON
929         select SYS_HAS_CPU_XLR
930         select SYS_SUPPORTS_SMP
931         select HW_HAS_PCI
932         select SWAP_IO_SPACE
933         select SYS_SUPPORTS_32BIT_KERNEL
934         select SYS_SUPPORTS_64BIT_KERNEL
935         select ARCH_PHYS_ADDR_T_64BIT
936         select SYS_SUPPORTS_BIG_ENDIAN
937         select SYS_SUPPORTS_HIGHMEM
938         select DMA_COHERENT
939         select NR_CPUS_DEFAULT_32
940         select CEVT_R4K
941         select CSRC_R4K
942         select IRQ_MIPS_CPU
943         select ZONE_DMA32 if 64BIT
944         select SYNC_R4K
945         select SYS_HAS_EARLY_PRINTK
946         select SYS_SUPPORTS_ZBOOT
947         select SYS_SUPPORTS_ZBOOT_UART16550
948         help
949           Support for systems based on Netlogic XLR and XLS processors.
950           Say Y here if you have a XLR or XLS based board.
951 
952 config NLM_XLP_BOARD
953         bool "Netlogic XLP based systems"
954         select BOOT_ELF32
955         select NLM_COMMON
956         select SYS_HAS_CPU_XLP
957         select SYS_SUPPORTS_SMP
958         select HW_HAS_PCI
959         select SYS_SUPPORTS_32BIT_KERNEL
960         select SYS_SUPPORTS_64BIT_KERNEL
961         select ARCH_PHYS_ADDR_T_64BIT
962         select GPIOLIB
963         select SYS_SUPPORTS_BIG_ENDIAN
964         select SYS_SUPPORTS_LITTLE_ENDIAN
965         select SYS_SUPPORTS_HIGHMEM
966         select DMA_COHERENT
967         select NR_CPUS_DEFAULT_32
968         select CEVT_R4K
969         select CSRC_R4K
970         select IRQ_MIPS_CPU
971         select ZONE_DMA32 if 64BIT
972         select SYNC_R4K
973         select SYS_HAS_EARLY_PRINTK
974         select USE_OF
975         select SYS_SUPPORTS_ZBOOT
976         select SYS_SUPPORTS_ZBOOT_UART16550
977         help
978           This board is based on Netlogic XLP Processor.
979           Say Y here if you have a XLP based board.
980 
981 config MIPS_PARAVIRT
982         bool "Para-Virtualized guest system"
983         select CEVT_R4K
984         select CSRC_R4K
985         select DMA_COHERENT
986         select SYS_SUPPORTS_64BIT_KERNEL
987         select SYS_SUPPORTS_32BIT_KERNEL
988         select SYS_SUPPORTS_BIG_ENDIAN
989         select SYS_SUPPORTS_SMP
990         select NR_CPUS_DEFAULT_4
991         select SYS_HAS_EARLY_PRINTK
992         select SYS_HAS_CPU_MIPS32_R2
993         select SYS_HAS_CPU_MIPS64_R2
994         select SYS_HAS_CPU_CAVIUM_OCTEON
995         select HW_HAS_PCI
996         select SWAP_IO_SPACE
997         help
998           This option supports guest running under ????
999 
1000 endchoice
1001 
1002 source "arch/mips/alchemy/Kconfig"
1003 source "arch/mips/ath25/Kconfig"
1004 source "arch/mips/ath79/Kconfig"
1005 source "arch/mips/bcm47xx/Kconfig"
1006 source "arch/mips/bcm63xx/Kconfig"
1007 source "arch/mips/bmips/Kconfig"
1008 source "arch/mips/generic/Kconfig"
1009 source "arch/mips/jazz/Kconfig"
1010 source "arch/mips/jz4740/Kconfig"
1011 source "arch/mips/lantiq/Kconfig"
1012 source "arch/mips/lasat/Kconfig"
1013 source "arch/mips/pic32/Kconfig"
1014 source "arch/mips/pistachio/Kconfig"
1015 source "arch/mips/pmcs-msp71xx/Kconfig"
1016 source "arch/mips/ralink/Kconfig"
1017 source "arch/mips/sgi-ip27/Kconfig"
1018 source "arch/mips/sibyte/Kconfig"
1019 source "arch/mips/txx9/Kconfig"
1020 source "arch/mips/vr41xx/Kconfig"
1021 source "arch/mips/cavium-octeon/Kconfig"
1022 source "arch/mips/loongson32/Kconfig"
1023 source "arch/mips/loongson64/Kconfig"
1024 source "arch/mips/netlogic/Kconfig"
1025 source "arch/mips/paravirt/Kconfig"
1026 source "arch/mips/xilfpga/Kconfig"
1027 
1028 endmenu
1029 
1030 config RWSEM_GENERIC_SPINLOCK
1031         bool
1032         default y
1033 
1034 config RWSEM_XCHGADD_ALGORITHM
1035         bool
1036 
1037 config ARCH_HAS_ILOG2_U32
1038         bool
1039         default n
1040 
1041 config ARCH_HAS_ILOG2_U64
1042         bool
1043         default n
1044 
1045 config GENERIC_HWEIGHT
1046         bool
1047         default y
1048 
1049 config GENERIC_CALIBRATE_DELAY
1050         bool
1051         default y
1052 
1053 config SCHED_OMIT_FRAME_POINTER
1054         bool
1055         default y
1056 
1057 #
1058 # Select some configuration options automatically based on user selections.
1059 #
1060 config FW_ARC
1061         bool
1062 
1063 config ARCH_MAY_HAVE_PC_FDC
1064         bool
1065 
1066 config BOOT_RAW
1067         bool
1068 
1069 config CEVT_BCM1480
1070         bool
1071 
1072 config CEVT_DS1287
1073         bool
1074 
1075 config CEVT_GT641XX
1076         bool
1077 
1078 config CEVT_R4K
1079         bool
1080 
1081 config CEVT_SB1250
1082         bool
1083 
1084 config CEVT_TXX9
1085         bool
1086 
1087 config CSRC_BCM1480
1088         bool
1089 
1090 config CSRC_IOASIC
1091         bool
1092 
1093 config CSRC_R4K
1094         bool
1095 
1096 config CSRC_SB1250
1097         bool
1098 
1099 config MIPS_CLOCK_VSYSCALL
1100         def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1101 
1102 config GPIO_TXX9
1103         select GPIOLIB
1104         bool
1105 
1106 config FW_CFE
1107         bool
1108 
1109 config ARCH_DMA_ADDR_T_64BIT
1110         def_bool (HIGHMEM && ARCH_PHYS_ADDR_T_64BIT) || 64BIT
1111 
1112 config ARCH_SUPPORTS_UPROBES
1113         bool
1114 
1115 config DMA_MAYBE_COHERENT
1116         select DMA_NONCOHERENT
1117         bool
1118 
1119 config DMA_PERDEV_COHERENT
1120         bool
1121         select DMA_MAYBE_COHERENT
1122 
1123 config DMA_COHERENT
1124         bool
1125 
1126 config DMA_NONCOHERENT
1127         bool
1128         select NEED_DMA_MAP_STATE
1129 
1130 config NEED_DMA_MAP_STATE
1131         bool
1132 
1133 config SYS_HAS_EARLY_PRINTK
1134         bool
1135 
1136 config SYS_SUPPORTS_HOTPLUG_CPU
1137         bool
1138 
1139 config MIPS_BONITO64
1140         bool
1141 
1142 config MIPS_MSC
1143         bool
1144 
1145 config MIPS_NILE4
1146         bool
1147 
1148 config SYNC_R4K
1149         bool
1150 
1151 config MIPS_MACHINE
1152         def_bool n
1153 
1154 config NO_IOPORT_MAP
1155         def_bool n
1156 
1157 config GENERIC_CSUM
1158         bool
1159 
1160 config GENERIC_ISA_DMA
1161         bool
1162         select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1163         select ISA_DMA_API
1164 
1165 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1166         bool
1167         select GENERIC_ISA_DMA
1168 
1169 config ISA_DMA_API
1170         bool
1171 
1172 config HOLES_IN_ZONE
1173         bool
1174 
1175 config SYS_SUPPORTS_RELOCATABLE
1176         bool
1177         help
1178          Selected if the platform supports relocating the kernel.
1179          The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1180          to allow access to command line and entropy sources.
1181 
1182 #
1183 # Endianness selection.  Sufficiently obscure so many users don't know what to
1184 # answer,so we try hard to limit the available choices.  Also the use of a
1185 # choice statement should be more obvious to the user.
1186 #
1187 choice
1188         prompt "Endianness selection"
1189         help
1190           Some MIPS machines can be configured for either little or big endian
1191           byte order. These modes require different kernels and a different
1192           Linux distribution.  In general there is one preferred byteorder for a
1193           particular system but some systems are just as commonly used in the
1194           one or the other endianness.
1195 
1196 config CPU_BIG_ENDIAN
1197         bool "Big endian"
1198         depends on SYS_SUPPORTS_BIG_ENDIAN
1199 
1200 config CPU_LITTLE_ENDIAN
1201         bool "Little endian"
1202         depends on SYS_SUPPORTS_LITTLE_ENDIAN
1203 
1204 endchoice
1205 
1206 config EXPORT_UASM
1207         bool
1208 
1209 config SYS_SUPPORTS_APM_EMULATION
1210         bool
1211 
1212 config SYS_SUPPORTS_BIG_ENDIAN
1213         bool
1214 
1215 config SYS_SUPPORTS_LITTLE_ENDIAN
1216         bool
1217 
1218 config SYS_SUPPORTS_HUGETLBFS
1219         bool
1220         depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1221         default y
1222 
1223 config MIPS_HUGE_TLB_SUPPORT
1224         def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1225 
1226 config IRQ_CPU_RM7K
1227         bool
1228 
1229 config IRQ_MSP_SLP
1230         bool
1231 
1232 config IRQ_MSP_CIC
1233         bool
1234 
1235 config IRQ_TXX9
1236         bool
1237 
1238 config IRQ_GT641XX
1239         bool
1240 
1241 config PCI_GT64XXX_PCI0
1242         bool
1243 
1244 config NO_EXCEPT_FILL
1245         bool
1246 
1247 config SOC_EMMA2RH
1248         bool
1249         select CEVT_R4K
1250         select CSRC_R4K
1251         select DMA_NONCOHERENT
1252         select IRQ_MIPS_CPU
1253         select SWAP_IO_SPACE
1254         select SYS_HAS_CPU_R5500
1255         select SYS_SUPPORTS_32BIT_KERNEL
1256         select SYS_SUPPORTS_64BIT_KERNEL
1257         select SYS_SUPPORTS_BIG_ENDIAN
1258 
1259 config SOC_PNX833X
1260         bool
1261         select CEVT_R4K
1262         select CSRC_R4K
1263         select IRQ_MIPS_CPU
1264         select DMA_NONCOHERENT
1265         select SYS_HAS_CPU_MIPS32_R2
1266         select SYS_SUPPORTS_32BIT_KERNEL
1267         select SYS_SUPPORTS_LITTLE_ENDIAN
1268         select SYS_SUPPORTS_BIG_ENDIAN
1269         select SYS_SUPPORTS_MIPS16
1270         select CPU_MIPSR2_IRQ_VI
1271 
1272 config SOC_PNX8335
1273         bool
1274         select SOC_PNX833X
1275 
1276 config MIPS_SPRAM
1277         bool
1278 
1279 config SWAP_IO_SPACE
1280         bool
1281 
1282 config SGI_HAS_INDYDOG
1283         bool
1284 
1285 config SGI_HAS_HAL2
1286         bool
1287 
1288 config SGI_HAS_SEEQ
1289         bool
1290 
1291 config SGI_HAS_WD93
1292         bool
1293 
1294 config SGI_HAS_ZILOG
1295         bool
1296 
1297 config SGI_HAS_I8042
1298         bool
1299 
1300 config DEFAULT_SGI_PARTITION
1301         bool
1302 
1303 config FW_ARC32
1304         bool
1305 
1306 config FW_SNIPROM
1307         bool
1308 
1309 config BOOT_ELF32
1310         bool
1311 
1312 config MIPS_L1_CACHE_SHIFT_4
1313         bool
1314 
1315 config MIPS_L1_CACHE_SHIFT_5
1316         bool
1317 
1318 config MIPS_L1_CACHE_SHIFT_6
1319         bool
1320 
1321 config MIPS_L1_CACHE_SHIFT_7
1322         bool
1323 
1324 config MIPS_L1_CACHE_SHIFT
1325         int
1326         default "7" if MIPS_L1_CACHE_SHIFT_7
1327         default "6" if MIPS_L1_CACHE_SHIFT_6
1328         default "5" if MIPS_L1_CACHE_SHIFT_5
1329         default "4" if MIPS_L1_CACHE_SHIFT_4
1330         default "5"
1331 
1332 config HAVE_STD_PC_SERIAL_PORT
1333         bool
1334 
1335 config ARC_CONSOLE
1336         bool "ARC console support"
1337         depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1338 
1339 config ARC_MEMORY
1340         bool
1341         depends on MACH_JAZZ || SNI_RM || SGI_IP32
1342         default y
1343 
1344 config ARC_PROMLIB
1345         bool
1346         depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1347         default y
1348 
1349 config FW_ARC64
1350         bool
1351 
1352 config BOOT_ELF64
1353         bool
1354 
1355 menu "CPU selection"
1356 
1357 choice
1358         prompt "CPU type"
1359         default CPU_R4X00
1360 
1361 config CPU_LOONGSON3
1362         bool "Loongson 3 CPU"
1363         depends on SYS_HAS_CPU_LOONGSON3
1364         select CPU_SUPPORTS_64BIT_KERNEL
1365         select CPU_SUPPORTS_HIGHMEM
1366         select CPU_SUPPORTS_HUGEPAGES
1367         select WEAK_ORDERING
1368         select WEAK_REORDERING_BEYOND_LLSC
1369         select MIPS_PGD_C0_CONTEXT
1370         select GPIOLIB
1371         help
1372                 The Loongson 3 processor implements the MIPS64R2 instruction
1373                 set with many extensions.
1374 
1375 config LOONGSON3_ENHANCEMENT
1376         bool "New Loongson 3 CPU Enhancements"
1377         default n
1378         select CPU_MIPSR2
1379         select CPU_HAS_PREFETCH
1380         depends on CPU_LOONGSON3
1381         help
1382           New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A
1383           R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1384           FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User
1385           Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1386           Fast TLB refill support, etc.
1387 
1388           This option enable those enhancements which are not probed at run
1389           time. If you want a generic kernel to run on all Loongson 3 machines,
1390           please say 'N' here. If you want a high-performance kernel to run on
1391           new Loongson 3 machines only, please say 'Y' here.
1392 
1393 config CPU_LOONGSON2E
1394         bool "Loongson 2E"
1395         depends on SYS_HAS_CPU_LOONGSON2E
1396         select CPU_LOONGSON2
1397         help
1398           The Loongson 2E processor implements the MIPS III instruction set
1399           with many extensions.
1400 
1401           It has an internal FPGA northbridge, which is compatible to
1402           bonito64.
1403 
1404 config CPU_LOONGSON2F
1405         bool "Loongson 2F"
1406         depends on SYS_HAS_CPU_LOONGSON2F
1407         select CPU_LOONGSON2
1408         select GPIOLIB
1409         help
1410           The Loongson 2F processor implements the MIPS III instruction set
1411           with many extensions.
1412 
1413           Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1414           have a similar programming interface with FPGA northbridge used in
1415           Loongson2E.
1416 
1417 config CPU_LOONGSON1B
1418         bool "Loongson 1B"
1419         depends on SYS_HAS_CPU_LOONGSON1B
1420         select CPU_LOONGSON1
1421         select LEDS_GPIO_REGISTER
1422         help
1423           The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1424           release 2 instruction set.
1425 
1426 config CPU_LOONGSON1C
1427         bool "Loongson 1C"
1428         depends on SYS_HAS_CPU_LOONGSON1C
1429         select CPU_LOONGSON1
1430         select ARCH_WANT_OPTIONAL_GPIOLIB
1431         select LEDS_GPIO_REGISTER
1432         help
1433           The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1434           release 2 instruction set.
1435 
1436 config CPU_MIPS32_R1
1437         bool "MIPS32 Release 1"
1438         depends on SYS_HAS_CPU_MIPS32_R1
1439         select CPU_HAS_PREFETCH
1440         select CPU_SUPPORTS_32BIT_KERNEL
1441         select CPU_SUPPORTS_HIGHMEM
1442         help
1443           Choose this option to build a kernel for release 1 or later of the
1444           MIPS32 architecture.  Most modern embedded systems with a 32-bit
1445           MIPS processor are based on a MIPS32 processor.  If you know the
1446           specific type of processor in your system, choose those that one
1447           otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1448           Release 2 of the MIPS32 architecture is available since several
1449           years so chances are you even have a MIPS32 Release 2 processor
1450           in which case you should choose CPU_MIPS32_R2 instead for better
1451           performance.
1452 
1453 config CPU_MIPS32_R2
1454         bool "MIPS32 Release 2"
1455         depends on SYS_HAS_CPU_MIPS32_R2
1456         select CPU_HAS_PREFETCH
1457         select CPU_SUPPORTS_32BIT_KERNEL
1458         select CPU_SUPPORTS_HIGHMEM
1459         select CPU_SUPPORTS_MSA
1460         select HAVE_KVM
1461         help
1462           Choose this option to build a kernel for release 2 or later of the
1463           MIPS32 architecture.  Most modern embedded systems with a 32-bit
1464           MIPS processor are based on a MIPS32 processor.  If you know the
1465           specific type of processor in your system, choose those that one
1466           otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1467 
1468 config CPU_MIPS32_R6
1469         bool "MIPS32 Release 6"
1470         depends on SYS_HAS_CPU_MIPS32_R6
1471         select CPU_HAS_PREFETCH
1472         select CPU_SUPPORTS_32BIT_KERNEL
1473         select CPU_SUPPORTS_HIGHMEM
1474         select CPU_SUPPORTS_MSA
1475         select GENERIC_CSUM
1476         select HAVE_KVM
1477         select MIPS_O32_FP64_SUPPORT
1478         help
1479           Choose this option to build a kernel for release 6 or later of the
1480           MIPS32 architecture.  New MIPS processors, starting with the Warrior
1481           family, are based on a MIPS32r6 processor. If you own an older
1482           processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1483 
1484 config CPU_MIPS64_R1
1485         bool "MIPS64 Release 1"
1486         depends on SYS_HAS_CPU_MIPS64_R1
1487         select CPU_HAS_PREFETCH
1488         select CPU_SUPPORTS_32BIT_KERNEL
1489         select CPU_SUPPORTS_64BIT_KERNEL
1490         select CPU_SUPPORTS_HIGHMEM
1491         select CPU_SUPPORTS_HUGEPAGES
1492         help
1493           Choose this option to build a kernel for release 1 or later of the
1494           MIPS64 architecture.  Many modern embedded systems with a 64-bit
1495           MIPS processor are based on a MIPS64 processor.  If you know the
1496           specific type of processor in your system, choose those that one
1497           otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1498           Release 2 of the MIPS64 architecture is available since several
1499           years so chances are you even have a MIPS64 Release 2 processor
1500           in which case you should choose CPU_MIPS64_R2 instead for better
1501           performance.
1502 
1503 config CPU_MIPS64_R2
1504         bool "MIPS64 Release 2"
1505         depends on SYS_HAS_CPU_MIPS64_R2
1506         select CPU_HAS_PREFETCH
1507         select CPU_SUPPORTS_32BIT_KERNEL
1508         select CPU_SUPPORTS_64BIT_KERNEL
1509         select CPU_SUPPORTS_HIGHMEM
1510         select CPU_SUPPORTS_HUGEPAGES
1511         select CPU_SUPPORTS_MSA
1512         select HAVE_KVM
1513         help
1514           Choose this option to build a kernel for release 2 or later of the
1515           MIPS64 architecture.  Many modern embedded systems with a 64-bit
1516           MIPS processor are based on a MIPS64 processor.  If you know the
1517           specific type of processor in your system, choose those that one
1518           otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1519 
1520 config CPU_MIPS64_R6
1521         bool "MIPS64 Release 6"
1522         depends on SYS_HAS_CPU_MIPS64_R6
1523         select CPU_HAS_PREFETCH
1524         select CPU_SUPPORTS_32BIT_KERNEL
1525         select CPU_SUPPORTS_64BIT_KERNEL
1526         select CPU_SUPPORTS_HIGHMEM
1527         select CPU_SUPPORTS_MSA
1528         select GENERIC_CSUM
1529         select MIPS_O32_FP64_SUPPORT if MIPS32_O32
1530         select HAVE_KVM
1531         help
1532           Choose this option to build a kernel for release 6 or later of the
1533           MIPS64 architecture.  New MIPS processors, starting with the Warrior
1534           family, are based on a MIPS64r6 processor. If you own an older
1535           processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1536 
1537 config CPU_R3000
1538         bool "R3000"
1539         depends on SYS_HAS_CPU_R3000
1540         select CPU_HAS_WB
1541         select CPU_SUPPORTS_32BIT_KERNEL
1542         select CPU_SUPPORTS_HIGHMEM
1543         help
1544           Please make sure to pick the right CPU type. Linux/MIPS is not
1545           designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1546           *not* work on R4000 machines and vice versa.  However, since most
1547           of the supported machines have an R4000 (or similar) CPU, R4x00
1548           might be a safe bet.  If the resulting kernel does not work,
1549           try to recompile with R3000.
1550 
1551 config CPU_TX39XX
1552         bool "R39XX"
1553         depends on SYS_HAS_CPU_TX39XX
1554         select CPU_SUPPORTS_32BIT_KERNEL
1555 
1556 config CPU_VR41XX
1557         bool "R41xx"
1558         depends on SYS_HAS_CPU_VR41XX
1559         select CPU_SUPPORTS_32BIT_KERNEL
1560         select CPU_SUPPORTS_64BIT_KERNEL
1561         help
1562           The options selects support for the NEC VR4100 series of processors.
1563           Only choose this option if you have one of these processors as a
1564           kernel built with this option will not run on any other type of
1565           processor or vice versa.
1566 
1567 config CPU_R4300
1568         bool "R4300"
1569         depends on SYS_HAS_CPU_R4300
1570         select CPU_SUPPORTS_32BIT_KERNEL
1571         select CPU_SUPPORTS_64BIT_KERNEL
1572         help
1573           MIPS Technologies R4300-series processors.
1574 
1575 config CPU_R4X00
1576         bool "R4x00"
1577         depends on SYS_HAS_CPU_R4X00
1578         select CPU_SUPPORTS_32BIT_KERNEL
1579         select CPU_SUPPORTS_64BIT_KERNEL
1580         select CPU_SUPPORTS_HUGEPAGES
1581         help
1582           MIPS Technologies R4000-series processors other than 4300, including
1583           the R4000, R4400, R4600, and 4700.
1584 
1585 config CPU_TX49XX
1586         bool "R49XX"
1587         depends on SYS_HAS_CPU_TX49XX
1588         select CPU_HAS_PREFETCH
1589         select CPU_SUPPORTS_32BIT_KERNEL
1590         select CPU_SUPPORTS_64BIT_KERNEL
1591         select CPU_SUPPORTS_HUGEPAGES
1592 
1593 config CPU_R5000
1594         bool "R5000"
1595         depends on SYS_HAS_CPU_R5000
1596         select CPU_SUPPORTS_32BIT_KERNEL
1597         select CPU_SUPPORTS_64BIT_KERNEL
1598         select CPU_SUPPORTS_HUGEPAGES
1599         help
1600           MIPS Technologies R5000-series processors other than the Nevada.
1601 
1602 config CPU_R5432
1603         bool "R5432"
1604         depends on SYS_HAS_CPU_R5432
1605         select CPU_SUPPORTS_32BIT_KERNEL
1606         select CPU_SUPPORTS_64BIT_KERNEL
1607         select CPU_SUPPORTS_HUGEPAGES
1608 
1609 config CPU_R5500
1610         bool "R5500"
1611         depends on SYS_HAS_CPU_R5500
1612         select CPU_SUPPORTS_32BIT_KERNEL
1613         select CPU_SUPPORTS_64BIT_KERNEL
1614         select CPU_SUPPORTS_HUGEPAGES
1615         help
1616           NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1617           instruction set.
1618 
1619 config CPU_R6000
1620         bool "R6000"
1621         depends on SYS_HAS_CPU_R6000
1622         select CPU_SUPPORTS_32BIT_KERNEL
1623         help
1624           MIPS Technologies R6000 and R6000A series processors.  Note these
1625           processors are extremely rare and the support for them is incomplete.
1626 
1627 config CPU_NEVADA
1628         bool "RM52xx"
1629         depends on SYS_HAS_CPU_NEVADA
1630         select CPU_SUPPORTS_32BIT_KERNEL
1631         select CPU_SUPPORTS_64BIT_KERNEL
1632         select CPU_SUPPORTS_HUGEPAGES
1633         help
1634           QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1635 
1636 config CPU_R8000
1637         bool "R8000"
1638         depends on SYS_HAS_CPU_R8000
1639         select CPU_HAS_PREFETCH
1640         select CPU_SUPPORTS_64BIT_KERNEL
1641         help
1642           MIPS Technologies R8000 processors.  Note these processors are
1643           uncommon and the support for them is incomplete.
1644 
1645 config CPU_R10000
1646         bool "R10000"
1647         depends on SYS_HAS_CPU_R10000
1648         select CPU_HAS_PREFETCH
1649         select CPU_SUPPORTS_32BIT_KERNEL
1650         select CPU_SUPPORTS_64BIT_KERNEL
1651         select CPU_SUPPORTS_HIGHMEM
1652         select CPU_SUPPORTS_HUGEPAGES
1653         help
1654           MIPS Technologies R10000-series processors.
1655 
1656 config CPU_RM7000
1657         bool "RM7000"
1658         depends on SYS_HAS_CPU_RM7000
1659         select CPU_HAS_PREFETCH
1660         select CPU_SUPPORTS_32BIT_KERNEL
1661         select CPU_SUPPORTS_64BIT_KERNEL
1662         select CPU_SUPPORTS_HIGHMEM
1663         select CPU_SUPPORTS_HUGEPAGES
1664 
1665 config CPU_SB1
1666         bool "SB1"
1667         depends on SYS_HAS_CPU_SB1
1668         select CPU_SUPPORTS_32BIT_KERNEL
1669         select CPU_SUPPORTS_64BIT_KERNEL
1670         select CPU_SUPPORTS_HIGHMEM
1671         select CPU_SUPPORTS_HUGEPAGES
1672         select WEAK_ORDERING
1673 
1674 config CPU_CAVIUM_OCTEON
1675         bool "Cavium Octeon processor"
1676         depends on SYS_HAS_CPU_CAVIUM_OCTEON
1677         select CPU_HAS_PREFETCH
1678         select CPU_SUPPORTS_64BIT_KERNEL
1679         select WEAK_ORDERING
1680         select CPU_SUPPORTS_HIGHMEM
1681         select CPU_SUPPORTS_HUGEPAGES
1682         select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1683         select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1684         select MIPS_L1_CACHE_SHIFT_7
1685         help
1686           The Cavium Octeon processor is a highly integrated chip containing
1687           many ethernet hardware widgets for networking tasks. The processor
1688           can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1689           Full details can be found at http://www.caviumnetworks.com.
1690 
1691 config CPU_BMIPS
1692         bool "Broadcom BMIPS"
1693         depends on SYS_HAS_CPU_BMIPS
1694         select CPU_MIPS32
1695         select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1696         select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1697         select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1698         select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1699         select CPU_SUPPORTS_32BIT_KERNEL
1700         select DMA_NONCOHERENT
1701         select IRQ_MIPS_CPU
1702         select SWAP_IO_SPACE
1703         select WEAK_ORDERING
1704         select CPU_SUPPORTS_HIGHMEM
1705         select CPU_HAS_PREFETCH
1706         help
1707           Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1708 
1709 config CPU_XLR
1710         bool "Netlogic XLR SoC"
1711         depends on SYS_HAS_CPU_XLR
1712         select CPU_SUPPORTS_32BIT_KERNEL
1713         select CPU_SUPPORTS_64BIT_KERNEL
1714         select CPU_SUPPORTS_HIGHMEM
1715         select CPU_SUPPORTS_HUGEPAGES
1716         select WEAK_ORDERING
1717         select WEAK_REORDERING_BEYOND_LLSC
1718         help
1719           Netlogic Microsystems XLR/XLS processors.
1720 
1721 config CPU_XLP
1722         bool "Netlogic XLP SoC"
1723         depends on SYS_HAS_CPU_XLP
1724         select CPU_SUPPORTS_32BIT_KERNEL
1725         select CPU_SUPPORTS_64BIT_KERNEL
1726         select CPU_SUPPORTS_HIGHMEM
1727         select WEAK_ORDERING
1728         select WEAK_REORDERING_BEYOND_LLSC
1729         select CPU_HAS_PREFETCH
1730         select CPU_MIPSR2
1731         select CPU_SUPPORTS_HUGEPAGES
1732         select MIPS_ASID_BITS_VARIABLE
1733         help
1734           Netlogic Microsystems XLP processors.
1735 endchoice
1736 
1737 config CPU_MIPS32_3_5_FEATURES
1738         bool "MIPS32 Release 3.5 Features"
1739         depends on SYS_HAS_CPU_MIPS32_R3_5
1740         depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1741         help
1742           Choose this option to build a kernel for release 2 or later of the
1743           MIPS32 architecture including features from the 3.5 release such as
1744           support for Enhanced Virtual Addressing (EVA).
1745 
1746 config CPU_MIPS32_3_5_EVA
1747         bool "Enhanced Virtual Addressing (EVA)"
1748         depends on CPU_MIPS32_3_5_FEATURES
1749         select EVA
1750         default y
1751         help
1752           Choose this option if you want to enable the Enhanced Virtual
1753           Addressing (EVA) on your MIPS32 core (such as proAptiv).
1754           One of its primary benefits is an increase in the maximum size
1755           of lowmem (up to 3GB). If unsure, say 'N' here.
1756 
1757 config CPU_MIPS32_R5_FEATURES
1758         bool "MIPS32 Release 5 Features"
1759         depends on SYS_HAS_CPU_MIPS32_R5
1760         depends on CPU_MIPS32_R2
1761         help
1762           Choose this option to build a kernel for release 2 or later of the
1763           MIPS32 architecture including features from release 5 such as
1764           support for Extended Physical Addressing (XPA).
1765 
1766 config CPU_MIPS32_R5_XPA
1767         bool "Extended Physical Addressing (XPA)"
1768         depends on CPU_MIPS32_R5_FEATURES
1769         depends on !EVA
1770         depends on !PAGE_SIZE_4KB
1771         depends on SYS_SUPPORTS_HIGHMEM
1772         select XPA
1773         select HIGHMEM
1774         select ARCH_PHYS_ADDR_T_64BIT
1775         default n
1776         help
1777           Choose this option if you want to enable the Extended Physical
1778           Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1779           benefit is to increase physical addressing equal to or greater
1780           than 40 bits. Note that this has the side effect of turning on
1781           64-bit addressing which in turn makes the PTEs 64-bit in size.
1782           If unsure, say 'N' here.
1783 
1784 if CPU_LOONGSON2F
1785 config CPU_NOP_WORKAROUNDS
1786         bool
1787 
1788 config CPU_JUMP_WORKAROUNDS
1789         bool
1790 
1791 config CPU_LOONGSON2F_WORKAROUNDS
1792         bool "Loongson 2F Workarounds"
1793         default y
1794         select CPU_NOP_WORKAROUNDS
1795         select CPU_JUMP_WORKAROUNDS
1796         help
1797           Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1798           require workarounds.  Without workarounds the system may hang
1799           unexpectedly.  For more information please refer to the gas
1800           -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1801 
1802           Loongson 2F03 and later have fixed these issues and no workarounds
1803           are needed.  The workarounds have no significant side effect on them
1804           but may decrease the performance of the system so this option should
1805           be disabled unless the kernel is intended to be run on 2F01 or 2F02
1806           systems.
1807 
1808           If unsure, please say Y.
1809 endif # CPU_LOONGSON2F
1810 
1811 config SYS_SUPPORTS_ZBOOT
1812         bool
1813         select HAVE_KERNEL_GZIP
1814         select HAVE_KERNEL_BZIP2
1815         select HAVE_KERNEL_LZ4
1816         select HAVE_KERNEL_LZMA
1817         select HAVE_KERNEL_LZO
1818         select HAVE_KERNEL_XZ
1819 
1820 config SYS_SUPPORTS_ZBOOT_UART16550
1821         bool
1822         select SYS_SUPPORTS_ZBOOT
1823 
1824 config SYS_SUPPORTS_ZBOOT_UART_PROM
1825         bool
1826         select SYS_SUPPORTS_ZBOOT
1827 
1828 config CPU_LOONGSON2
1829         bool
1830         select CPU_SUPPORTS_32BIT_KERNEL
1831         select CPU_SUPPORTS_64BIT_KERNEL
1832         select CPU_SUPPORTS_HIGHMEM
1833         select CPU_SUPPORTS_HUGEPAGES
1834 
1835 config CPU_LOONGSON1
1836         bool
1837         select CPU_MIPS32
1838         select CPU_MIPSR2
1839         select CPU_HAS_PREFETCH
1840         select CPU_SUPPORTS_32BIT_KERNEL
1841         select CPU_SUPPORTS_HIGHMEM
1842         select CPU_SUPPORTS_CPUFREQ
1843 
1844 config CPU_BMIPS32_3300
1845         select SMP_UP if SMP
1846         bool
1847 
1848 config CPU_BMIPS4350
1849         bool
1850         select SYS_SUPPORTS_SMP
1851         select SYS_SUPPORTS_HOTPLUG_CPU
1852 
1853 config CPU_BMIPS4380
1854         bool
1855         select MIPS_L1_CACHE_SHIFT_6
1856         select SYS_SUPPORTS_SMP
1857         select SYS_SUPPORTS_HOTPLUG_CPU
1858         select CPU_HAS_RIXI
1859 
1860 config CPU_BMIPS5000
1861         bool
1862         select MIPS_CPU_SCACHE
1863         select MIPS_L1_CACHE_SHIFT_7
1864         select SYS_SUPPORTS_SMP
1865         select SYS_SUPPORTS_HOTPLUG_CPU
1866         select CPU_HAS_RIXI
1867 
1868 config SYS_HAS_CPU_LOONGSON3
1869         bool
1870         select CPU_SUPPORTS_CPUFREQ
1871         select CPU_HAS_RIXI
1872 
1873 config SYS_HAS_CPU_LOONGSON2E
1874         bool
1875 
1876 config SYS_HAS_CPU_LOONGSON2F
1877         bool
1878         select CPU_SUPPORTS_CPUFREQ
1879         select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1880         select CPU_SUPPORTS_UNCACHED_ACCELERATED
1881 
1882 config SYS_HAS_CPU_LOONGSON1B
1883         bool
1884 
1885 config SYS_HAS_CPU_LOONGSON1C
1886         bool
1887 
1888 config SYS_HAS_CPU_MIPS32_R1
1889         bool
1890 
1891 config SYS_HAS_CPU_MIPS32_R2
1892         bool
1893 
1894 config SYS_HAS_CPU_MIPS32_R3_5
1895         bool
1896 
1897 config SYS_HAS_CPU_MIPS32_R5
1898         bool
1899 
1900 config SYS_HAS_CPU_MIPS32_R6
1901         bool
1902 
1903 config SYS_HAS_CPU_MIPS64_R1
1904         bool
1905 
1906 config SYS_HAS_CPU_MIPS64_R2
1907         bool
1908 
1909 config SYS_HAS_CPU_MIPS64_R6
1910         bool
1911 
1912 config SYS_HAS_CPU_R3000
1913         bool
1914 
1915 config SYS_HAS_CPU_TX39XX
1916         bool
1917 
1918 config SYS_HAS_CPU_VR41XX
1919         bool
1920 
1921 config SYS_HAS_CPU_R4300
1922         bool
1923 
1924 config SYS_HAS_CPU_R4X00
1925         bool
1926 
1927 config SYS_HAS_CPU_TX49XX
1928         bool
1929 
1930 config SYS_HAS_CPU_R5000
1931         bool
1932 
1933 config SYS_HAS_CPU_R5432
1934         bool
1935 
1936 config SYS_HAS_CPU_R5500
1937         bool
1938 
1939 config SYS_HAS_CPU_R6000
1940         bool
1941 
1942 config SYS_HAS_CPU_NEVADA
1943         bool
1944 
1945 config SYS_HAS_CPU_R8000
1946         bool
1947 
1948 config SYS_HAS_CPU_R10000
1949         bool
1950 
1951 config SYS_HAS_CPU_RM7000
1952         bool
1953 
1954 config SYS_HAS_CPU_SB1
1955         bool
1956 
1957 config SYS_HAS_CPU_CAVIUM_OCTEON
1958         bool
1959 
1960 config SYS_HAS_CPU_BMIPS
1961         bool
1962 
1963 config SYS_HAS_CPU_BMIPS32_3300
1964         bool
1965         select SYS_HAS_CPU_BMIPS
1966 
1967 config SYS_HAS_CPU_BMIPS4350
1968         bool
1969         select SYS_HAS_CPU_BMIPS
1970 
1971 config SYS_HAS_CPU_BMIPS4380
1972         bool
1973         select SYS_HAS_CPU_BMIPS
1974 
1975 config SYS_HAS_CPU_BMIPS5000
1976         bool
1977         select SYS_HAS_CPU_BMIPS
1978 
1979 config SYS_HAS_CPU_XLR
1980         bool
1981 
1982 config SYS_HAS_CPU_XLP
1983         bool
1984 
1985 config MIPS_MALTA_PM
1986         depends on MIPS_MALTA
1987         depends on PCI
1988         bool
1989         default y
1990 
1991 #
1992 # CPU may reorder R->R, R->W, W->R, W->W
1993 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1994 #
1995 config WEAK_ORDERING
1996         bool
1997 
1998 #
1999 # CPU may reorder reads and writes beyond LL/SC
2000 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
2001 #
2002 config WEAK_REORDERING_BEYOND_LLSC
2003         bool
2004 endmenu
2005 
2006 #
2007 # These two indicate any level of the MIPS32 and MIPS64 architecture
2008 #
2009 config CPU_MIPS32
2010         bool
2011         default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
2012 
2013 config CPU_MIPS64
2014         bool
2015         default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
2016 
2017 #
2018 # These two indicate the revision of the architecture, either Release 1 or Release 2
2019 #
2020 config CPU_MIPSR1
2021         bool
2022         default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
2023 
2024 config CPU_MIPSR2
2025         bool
2026         default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2027         select CPU_HAS_RIXI
2028         select MIPS_SPRAM
2029 
2030 config CPU_MIPSR6
2031         bool
2032         default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2033         select CPU_HAS_RIXI
2034         select HAVE_ARCH_BITREVERSE
2035         select MIPS_ASID_BITS_VARIABLE
2036         select MIPS_SPRAM
2037 
2038 config EVA
2039         bool
2040 
2041 config XPA
2042         bool
2043 
2044 config SYS_SUPPORTS_32BIT_KERNEL
2045         bool
2046 config SYS_SUPPORTS_64BIT_KERNEL
2047         bool
2048 config CPU_SUPPORTS_32BIT_KERNEL
2049         bool
2050 config CPU_SUPPORTS_64BIT_KERNEL
2051         bool
2052 config CPU_SUPPORTS_CPUFREQ
2053         bool
2054 config CPU_SUPPORTS_ADDRWINCFG
2055         bool
2056 config CPU_SUPPORTS_HUGEPAGES
2057         bool
2058 config CPU_SUPPORTS_UNCACHED_ACCELERATED
2059         bool
2060 config MIPS_PGD_C0_CONTEXT
2061         bool
2062         default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
2063 
2064 #
2065 # Set to y for ptrace access to watch registers.
2066 #
2067 config HARDWARE_WATCHPOINTS
2068        bool
2069        default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2070 
2071 menu "Kernel type"
2072 
2073 choice
2074         prompt "Kernel code model"
2075         help
2076           You should only select this option if you have a workload that
2077           actually benefits from 64-bit processing or if your machine has
2078           large memory.  You will only be presented a single option in this
2079           menu if your system does not support both 32-bit and 64-bit kernels.
2080 
2081 config 32BIT
2082         bool "32-bit kernel"
2083         depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2084         select TRAD_SIGNALS
2085         help
2086           Select this option if you want to build a 32-bit kernel.
2087 
2088 config 64BIT
2089         bool "64-bit kernel"
2090         depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2091         help
2092           Select this option if you want to build a 64-bit kernel.
2093 
2094 endchoice
2095 
2096 config KVM_GUEST
2097         bool "KVM Guest Kernel"
2098         depends on BROKEN_ON_SMP
2099         help
2100           Select this option if building a guest kernel for KVM (Trap & Emulate)
2101           mode.
2102 
2103 config KVM_GUEST_TIMER_FREQ
2104         int "Count/Compare Timer Frequency (MHz)"
2105         depends on KVM_GUEST
2106         default 100
2107         help
2108           Set this to non-zero if building a guest kernel for KVM to skip RTC
2109           emulation when determining guest CPU Frequency. Instead, the guest's
2110           timer frequency is specified directly.
2111 
2112 config MIPS_VA_BITS_48
2113         bool "48 bits virtual memory"
2114         depends on 64BIT
2115         help
2116           Support a maximum at least 48 bits of application virtual memory.
2117           Default is 40 bits or less, depending on the CPU.
2118           This option result in a small memory overhead for page tables.
2119           This option is only supported with 16k and 64k page sizes.
2120           If unsure, say N.
2121 
2122 choice
2123         prompt "Kernel page size"
2124         default PAGE_SIZE_4KB
2125 
2126 config PAGE_SIZE_4KB
2127         bool "4kB"
2128         depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
2129         depends on !MIPS_VA_BITS_48
2130         help
2131          This option select the standard 4kB Linux page size.  On some
2132          R3000-family processors this is the only available page size.  Using
2133          4kB page size will minimize memory consumption and is therefore
2134          recommended for low memory systems.
2135 
2136 config PAGE_SIZE_8KB
2137         bool "8kB"
2138         depends on CPU_R8000 || CPU_CAVIUM_OCTEON
2139         depends on !MIPS_VA_BITS_48
2140         help
2141           Using 8kB page size will result in higher performance kernel at
2142           the price of higher memory consumption.  This option is available
2143           only on R8000 and cnMIPS processors.  Note that you will need a
2144           suitable Linux distribution to support this.
2145 
2146 config PAGE_SIZE_16KB
2147         bool "16kB"
2148         depends on !CPU_R3000 && !CPU_TX39XX
2149         help
2150           Using 16kB page size will result in higher performance kernel at
2151           the price of higher memory consumption.  This option is available on
2152           all non-R3000 family processors.  Note that you will need a suitable
2153           Linux distribution to support this.
2154 
2155 config PAGE_SIZE_32KB
2156         bool "32kB"
2157         depends on CPU_CAVIUM_OCTEON
2158         depends on !MIPS_VA_BITS_48
2159         help
2160           Using 32kB page size will result in higher performance kernel at
2161           the price of higher memory consumption.  This option is available
2162           only on cnMIPS cores.  Note that you will need a suitable Linux
2163           distribution to support this.
2164 
2165 config PAGE_SIZE_64KB
2166         bool "64kB"
2167         depends on !CPU_R3000 && !CPU_TX39XX && !CPU_R6000
2168         help
2169           Using 64kB page size will result in higher performance kernel at
2170           the price of higher memory consumption.  This option is available on
2171           all non-R3000 family processor.  Not that at the time of this
2172           writing this option is still high experimental.
2173 
2174 endchoice
2175 
2176 config FORCE_MAX_ZONEORDER
2177         int "Maximum zone order"
2178         range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2179         default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2180         range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2181         default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2182         range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2183         default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2184         range 11 64
2185         default "11"
2186         help
2187           The kernel memory allocator divides physically contiguous memory
2188           blocks into "zones", where each zone is a power of two number of
2189           pages.  This option selects the largest power of two that the kernel
2190           keeps in the memory allocator.  If you need to allocate very large
2191           blocks of physically contiguous memory, then you may need to
2192           increase this value.
2193 
2194           This config option is actually maximum order plus one. For example,
2195           a value of 11 means that the largest free memory block is 2^10 pages.
2196 
2197           The page size is not necessarily 4KB.  Keep this in mind
2198           when choosing a value for this option.
2199 
2200 config BOARD_SCACHE
2201         bool
2202 
2203 config IP22_CPU_SCACHE
2204         bool
2205         select BOARD_SCACHE
2206 
2207 #
2208 # Support for a MIPS32 / MIPS64 style S-caches
2209 #
2210 config MIPS_CPU_SCACHE
2211         bool
2212         select BOARD_SCACHE
2213 
2214 config R5000_CPU_SCACHE
2215         bool
2216         select BOARD_SCACHE
2217 
2218 config RM7000_CPU_SCACHE
2219         bool
2220         select BOARD_SCACHE
2221 
2222 config SIBYTE_DMA_PAGEOPS
2223         bool "Use DMA to clear/copy pages"
2224         depends on CPU_SB1
2225         help
2226           Instead of using the CPU to zero and copy pages, use a Data Mover
2227           channel.  These DMA channels are otherwise unused by the standard
2228           SiByte Linux port.  Seems to give a small performance benefit.
2229 
2230 config CPU_HAS_PREFETCH
2231         bool
2232 
2233 config CPU_GENERIC_DUMP_TLB
2234         bool
2235         default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
2236 
2237 config CPU_R4K_FPU
2238         bool
2239         default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2240 
2241 config CPU_R4K_CACHE_TLB
2242         bool
2243         default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2244 
2245 config MIPS_MT_SMP
2246         bool "MIPS MT SMP support (1 TC on each available VPE)"
2247         depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6
2248         select CPU_MIPSR2_IRQ_VI
2249         select CPU_MIPSR2_IRQ_EI
2250         select SYNC_R4K
2251         select MIPS_MT
2252         select SMP
2253         select SMP_UP
2254         select SYS_SUPPORTS_SMP
2255         select SYS_SUPPORTS_SCHED_SMT
2256         select MIPS_PERF_SHARED_TC_COUNTERS
2257         help
2258           This is a kernel model which is known as SMVP. This is supported
2259           on cores with the MT ASE and uses the available VPEs to implement
2260           virtual processors which supports SMP. This is equivalent to the
2261           Intel Hyperthreading feature. For further information go to
2262           <http://www.imgtec.com/mips/mips-multithreading.asp>.
2263 
2264 config MIPS_MT
2265         bool
2266 
2267 config SCHED_SMT
2268         bool "SMT (multithreading) scheduler support"
2269         depends on SYS_SUPPORTS_SCHED_SMT
2270         default n
2271         help
2272           SMT scheduler support improves the CPU scheduler's decision making
2273           when dealing with MIPS MT enabled cores at a cost of slightly
2274           increased overhead in some places. If unsure say N here.
2275 
2276 config SYS_SUPPORTS_SCHED_SMT
2277         bool
2278 
2279 config SYS_SUPPORTS_MULTITHREADING
2280         bool
2281 
2282 config MIPS_MT_FPAFF
2283         bool "Dynamic FPU affinity for FP-intensive threads"
2284         default y
2285         depends on MIPS_MT_SMP
2286 
2287 config MIPSR2_TO_R6_EMULATOR
2288         bool "MIPS R2-to-R6 emulator"
2289         depends on CPU_MIPSR6 && !SMP
2290         default y
2291         help
2292           Choose this option if you want to run non-R6 MIPS userland code.
2293           Even if you say 'Y' here, the emulator will still be disabled by
2294           default. You can enable it using the 'mipsr2emu' kernel option.
2295           The only reason this is a build-time option is to save ~14K from the
2296           final kernel image.
2297 comment "MIPS R2-to-R6 emulator is only available for UP kernels"
2298         depends on SMP && CPU_MIPSR6
2299 
2300 config MIPS_VPE_LOADER
2301         bool "VPE loader support."
2302         depends on SYS_SUPPORTS_MULTITHREADING && MODULES
2303         select CPU_MIPSR2_IRQ_VI
2304         select CPU_MIPSR2_IRQ_EI
2305         select MIPS_MT
2306         help
2307           Includes a loader for loading an elf relocatable object
2308           onto another VPE and running it.
2309 
2310 config MIPS_VPE_LOADER_CMP
2311         bool
2312         default "y"
2313         depends on MIPS_VPE_LOADER && MIPS_CMP
2314 
2315 config MIPS_VPE_LOADER_MT
2316         bool
2317         default "y"
2318         depends on MIPS_VPE_LOADER && !MIPS_CMP
2319 
2320 config MIPS_VPE_LOADER_TOM
2321         bool "Load VPE program into memory hidden from linux"
2322         depends on MIPS_VPE_LOADER
2323         default y
2324         help
2325           The loader can use memory that is present but has been hidden from
2326           Linux using the kernel command line option "mem=xxMB". It's up to
2327           you to ensure the amount you put in the option and the space your
2328           program requires is less or equal to the amount physically present.
2329 
2330 config MIPS_VPE_APSP_API
2331         bool "Enable support for AP/SP API (RTLX)"
2332         depends on MIPS_VPE_LOADER
2333         help
2334 
2335 config MIPS_VPE_APSP_API_CMP
2336         bool
2337         default "y"
2338         depends on MIPS_VPE_APSP_API && MIPS_CMP
2339 
2340 config MIPS_VPE_APSP_API_MT
2341         bool
2342         default "y"
2343         depends on MIPS_VPE_APSP_API && !MIPS_CMP
2344 
2345 config MIPS_CMP
2346         bool "MIPS CMP framework support (DEPRECATED)"
2347         depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2348         select SMP
2349         select SYNC_R4K
2350         select SYS_SUPPORTS_SMP
2351         select WEAK_ORDERING
2352         default n
2353         help
2354           Select this if you are using a bootloader which implements the "CMP
2355           framework" protocol (ie. YAMON) and want your kernel to make use of
2356           its ability to start secondary CPUs.
2357 
2358           Unless you have a specific need, you should use CONFIG_MIPS_CPS
2359           instead of this.
2360 
2361 config MIPS_CPS
2362         bool "MIPS Coherent Processing System support"
2363         depends on SYS_SUPPORTS_MIPS_CPS
2364         select MIPS_CM
2365         select MIPS_CPC
2366         select MIPS_CPS_PM if HOTPLUG_CPU
2367         select SMP
2368         select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2369         select SYS_SUPPORTS_HOTPLUG_CPU
2370         select SYS_SUPPORTS_SMP
2371         select WEAK_ORDERING
2372         help
2373           Select this if you wish to run an SMP kernel across multiple cores
2374           within a MIPS Coherent Processing System. When this option is
2375           enabled the kernel will probe for other cores and boot them with
2376           no external assistance. It is safe to enable this when hardware
2377           support is unavailable.
2378 
2379 config MIPS_CPS_PM
2380         depends on MIPS_CPS
2381         select MIPS_CPC
2382         bool
2383 
2384 config MIPS_CM
2385         bool
2386 
2387 config MIPS_CPC
2388         bool
2389 
2390 config SB1_PASS_2_WORKAROUNDS
2391         bool
2392         depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2393         default y
2394 
2395 config SB1_PASS_2_1_WORKAROUNDS
2396         bool
2397         depends on CPU_SB1 && CPU_SB1_PASS_2
2398         default y
2399 
2400 
2401 config ARCH_PHYS_ADDR_T_64BIT
2402        bool
2403 
2404 choice
2405         prompt "SmartMIPS or microMIPS ASE support"
2406 
2407 config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2408         bool "None"
2409         help
2410           Select this if you want neither microMIPS nor SmartMIPS support
2411 
2412 config CPU_HAS_SMARTMIPS
2413         depends on SYS_SUPPORTS_SMARTMIPS
2414         bool "SmartMIPS"
2415         help
2416           SmartMIPS is a extension of the MIPS32 architecture aimed at
2417           increased security at both hardware and software level for
2418           smartcards.  Enabling this option will allow proper use of the
2419           SmartMIPS instructions by Linux applications.  However a kernel with
2420           this option will not work on a MIPS core without SmartMIPS core.  If
2421           you don't know you probably don't have SmartMIPS and should say N
2422           here.
2423 
2424 config CPU_MICROMIPS
2425         depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2426         bool "microMIPS"
2427         help
2428           When this option is enabled the kernel will be built using the
2429           microMIPS ISA
2430 
2431 endchoice
2432 
2433 config CPU_HAS_MSA
2434         bool "Support for the MIPS SIMD Architecture"
2435         depends on CPU_SUPPORTS_MSA
2436         depends on 64BIT || MIPS_O32_FP64_SUPPORT
2437         help
2438           MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2439           and a set of SIMD instructions to operate on them. When this option
2440           is enabled the kernel will support allocating & switching MSA
2441           vector register contexts. If you know that your kernel will only be
2442           running on CPUs which do not support MSA or that your userland will
2443           not be making use of it then you may wish to say N here to reduce
2444           the size & complexity of your kernel.
2445 
2446           If unsure, say Y.
2447 
2448 config CPU_HAS_WB
2449         bool
2450 
2451 config XKS01
2452         bool
2453 
2454 config CPU_HAS_RIXI
2455         bool
2456 
2457 #
2458 # Vectored interrupt mode is an R2 feature
2459 #
2460 config CPU_MIPSR2_IRQ_VI
2461         bool
2462 
2463 #
2464 # Extended interrupt mode is an R2 feature
2465 #
2466 config CPU_MIPSR2_IRQ_EI
2467         bool
2468 
2469 config CPU_HAS_SYNC
2470         bool
2471         depends on !CPU_R3000
2472         default y
2473 
2474 #
2475 # CPU non-features
2476 #
2477 config CPU_DADDI_WORKAROUNDS
2478         bool
2479 
2480 config CPU_R4000_WORKAROUNDS
2481         bool
2482         select CPU_R4400_WORKAROUNDS
2483 
2484 config CPU_R4400_WORKAROUNDS
2485         bool
2486 
2487 config MIPS_ASID_SHIFT
2488         int
2489         default 6 if CPU_R3000 || CPU_TX39XX
2490         default 4 if CPU_R8000
2491         default 0
2492 
2493 config MIPS_ASID_BITS
2494         int
2495         default 0 if MIPS_ASID_BITS_VARIABLE
2496         default 6 if CPU_R3000 || CPU_TX39XX
2497         default 8
2498 
2499 config MIPS_ASID_BITS_VARIABLE
2500         bool
2501 
2502 #
2503 # - Highmem only makes sense for the 32-bit kernel.
2504 # - The current highmem code will only work properly on physically indexed
2505 #   caches such as R3000, SB1, R7000 or those that look like they're virtually
2506 #   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
2507 #   moment we protect the user and offer the highmem option only on machines
2508 #   where it's known to be safe.  This will not offer highmem on a few systems
2509 #   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2510 #   indexed CPUs but we're playing safe.
2511 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2512 #   know they might have memory configurations that could make use of highmem
2513 #   support.
2514 #
2515 config HIGHMEM
2516         bool "High Memory Support"
2517         depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2518 
2519 config CPU_SUPPORTS_HIGHMEM
2520         bool
2521 
2522 config SYS_SUPPORTS_HIGHMEM
2523         bool
2524 
2525 config SYS_SUPPORTS_SMARTMIPS
2526         bool
2527 
2528 config SYS_SUPPORTS_MICROMIPS
2529         bool
2530 
2531 config SYS_SUPPORTS_MIPS16
2532         bool
2533         help
2534           This option must be set if a kernel might be executed on a MIPS16-
2535           enabled CPU even if MIPS16 is not actually being used.  In other
2536           words, it makes the kernel MIPS16-tolerant.
2537 
2538 config CPU_SUPPORTS_MSA
2539         bool
2540 
2541 config ARCH_FLATMEM_ENABLE
2542         def_bool y
2543         depends on !NUMA && !CPU_LOONGSON2
2544 
2545 config ARCH_DISCONTIGMEM_ENABLE
2546         bool
2547         default y if SGI_IP27
2548         help
2549           Say Y to support efficient handling of discontiguous physical memory,
2550           for architectures which are either NUMA (Non-Uniform Memory Access)
2551           or have huge holes in the physical address space for other reasons.
2552           See <file:Documentation/vm/numa> for more.
2553 
2554 config ARCH_SPARSEMEM_ENABLE
2555         bool
2556         select SPARSEMEM_STATIC
2557 
2558 config NUMA
2559         bool "NUMA Support"
2560         depends on SYS_SUPPORTS_NUMA
2561         help
2562           Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2563           Access).  This option improves performance on systems with more
2564           than two nodes; on two node systems it is generally better to
2565           leave it disabled; on single node systems disable this option
2566           disabled.
2567 
2568 config SYS_SUPPORTS_NUMA
2569         bool
2570 
2571 config RELOCATABLE
2572         bool "Relocatable kernel"
2573         depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6)
2574         help
2575           This builds a kernel image that retains relocation information
2576           so it can be loaded someplace besides the default 1MB.
2577           The relocations make the kernel binary about 15% larger,
2578           but are discarded at runtime
2579 
2580 config RELOCATION_TABLE_SIZE
2581         hex "Relocation table size"
2582         depends on RELOCATABLE
2583         range 0x0 0x01000000
2584         default "0x00100000"
2585         ---help---
2586           A table of relocation data will be appended to the kernel binary
2587           and parsed at boot to fix up the relocated kernel.
2588 
2589           This option allows the amount of space reserved for the table to be
2590           adjusted, although the default of 1Mb should be ok in most cases.
2591 
2592           The build will fail and a valid size suggested if this is too small.
2593 
2594           If unsure, leave at the default value.
2595 
2596 config RANDOMIZE_BASE
2597         bool "Randomize the address of the kernel image"
2598         depends on RELOCATABLE
2599         ---help---
2600            Randomizes the physical and virtual address at which the
2601            kernel image is loaded, as a security feature that
2602            deters exploit attempts relying on knowledge of the location
2603            of kernel internals.
2604 
2605            Entropy is generated using any coprocessor 0 registers available.
2606 
2607            The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2608 
2609            If unsure, say N.
2610 
2611 config RANDOMIZE_BASE_MAX_OFFSET
2612         hex "Maximum kASLR offset" if EXPERT
2613         depends on RANDOMIZE_BASE
2614         range 0x0 0x40000000 if EVA || 64BIT
2615         range 0x0 0x08000000
2616         default "0x01000000"
2617         ---help---
2618           When kASLR is active, this provides the maximum offset that will
2619           be applied to the kernel image. It should be set according to the
2620           amount of physical RAM available in the target system minus
2621           PHYSICAL_START and must be a power of 2.
2622 
2623           This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2624           EVA or 64-bit. The default is 16Mb.
2625 
2626 config NODES_SHIFT
2627         int
2628         default "6"
2629         depends on NEED_MULTIPLE_NODES
2630 
2631 config HW_PERF_EVENTS
2632         bool "Enable hardware performance counter support for perf events"
2633         depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2634         default y
2635         help
2636           Enable hardware performance counter support for perf events. If
2637           disabled, perf events will use software events only.
2638 
2639 source "mm/Kconfig"
2640 
2641 config SMP
2642         bool "Multi-Processing support"
2643         depends on SYS_SUPPORTS_SMP
2644         help
2645           This enables support for systems with more than one CPU. If you have
2646           a system with only one CPU, say N. If you have a system with more
2647           than one CPU, say Y.
2648 
2649           If you say N here, the kernel will run on uni- and multiprocessor
2650           machines, but will use only one CPU of a multiprocessor machine. If
2651           you say Y here, the kernel will run on many, but not all,
2652           uniprocessor machines. On a uniprocessor machine, the kernel
2653           will run faster if you say N here.
2654 
2655           People using multiprocessor machines who say Y here should also say
2656           Y to "Enhanced Real Time Clock Support", below.
2657 
2658           See also the SMP-HOWTO available at
2659           <http://www.tldp.org/docs.html#howto>.
2660 
2661           If you don't know what to do here, say N.
2662 
2663 config HOTPLUG_CPU
2664         bool "Support for hot-pluggable CPUs"
2665         depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2666         help
2667           Say Y here to allow turning CPUs off and on. CPUs can be
2668           controlled through /sys/devices/system/cpu.
2669           (Note: power management support will enable this option
2670             automatically on SMP systems. )
2671           Say N if you want to disable CPU hotplug.
2672 
2673 config SMP_UP
2674         bool
2675 
2676 config SYS_SUPPORTS_MIPS_CMP
2677         bool
2678 
2679 config SYS_SUPPORTS_MIPS_CPS
2680         bool
2681 
2682 config SYS_SUPPORTS_SMP
2683         bool
2684 
2685 config NR_CPUS_DEFAULT_4
2686         bool
2687 
2688 config NR_CPUS_DEFAULT_8
2689         bool
2690 
2691 config NR_CPUS_DEFAULT_16
2692         bool
2693 
2694 config NR_CPUS_DEFAULT_32
2695         bool
2696 
2697 config NR_CPUS_DEFAULT_64
2698         bool
2699 
2700 config NR_CPUS
2701         int "Maximum number of CPUs (2-256)"
2702         range 2 256
2703         depends on SMP
2704         default "4" if NR_CPUS_DEFAULT_4
2705         default "8" if NR_CPUS_DEFAULT_8
2706         default "16" if NR_CPUS_DEFAULT_16
2707         default "32" if NR_CPUS_DEFAULT_32
2708         default "64" if NR_CPUS_DEFAULT_64
2709         help
2710           This allows you to specify the maximum number of CPUs which this
2711           kernel will support.  The maximum supported value is 32 for 32-bit
2712           kernel and 64 for 64-bit kernels; the minimum value which makes
2713           sense is 1 for Qemu (useful only for kernel debugging purposes)
2714           and 2 for all others.
2715 
2716           This is purely to save memory - each supported CPU adds
2717           approximately eight kilobytes to the kernel image.  For best
2718           performance should round up your number of processors to the next
2719           power of two.
2720 
2721 config MIPS_PERF_SHARED_TC_COUNTERS
2722         bool
2723 
2724 #
2725 # Timer Interrupt Frequency Configuration
2726 #
2727 
2728 choice
2729         prompt "Timer frequency"
2730         default HZ_250
2731         help
2732          Allows the configuration of the timer frequency.
2733 
2734         config HZ_24
2735                 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2736 
2737         config HZ_48
2738                 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2739 
2740         config HZ_100
2741                 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2742 
2743         config HZ_128
2744                 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2745 
2746         config HZ_250
2747                 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2748 
2749         config HZ_256
2750                 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2751 
2752         config HZ_1000
2753                 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2754 
2755         config HZ_1024
2756                 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2757 
2758 endchoice
2759 
2760 config SYS_SUPPORTS_24HZ
2761         bool
2762 
2763 config SYS_SUPPORTS_48HZ
2764         bool
2765 
2766 config SYS_SUPPORTS_100HZ
2767         bool
2768 
2769 config SYS_SUPPORTS_128HZ
2770         bool
2771 
2772 config SYS_SUPPORTS_250HZ
2773         bool
2774 
2775 config SYS_SUPPORTS_256HZ
2776         bool
2777 
2778 config SYS_SUPPORTS_1000HZ
2779         bool
2780 
2781 config SYS_SUPPORTS_1024HZ
2782         bool
2783 
2784 config SYS_SUPPORTS_ARBIT_HZ
2785         bool
2786         default y if !SYS_SUPPORTS_24HZ && \
2787                      !SYS_SUPPORTS_48HZ && \
2788                      !SYS_SUPPORTS_100HZ && \
2789                      !SYS_SUPPORTS_128HZ && \
2790                      !SYS_SUPPORTS_250HZ && \
2791                      !SYS_SUPPORTS_256HZ && \
2792                      !SYS_SUPPORTS_1000HZ && \
2793                      !SYS_SUPPORTS_1024HZ
2794 
2795 config HZ
2796         int
2797         default 24 if HZ_24
2798         default 48 if HZ_48
2799         default 100 if HZ_100
2800         default 128 if HZ_128
2801         default 250 if HZ_250
2802         default 256 if HZ_256
2803         default 1000 if HZ_1000
2804         default 1024 if HZ_1024
2805 
2806 config SCHED_HRTICK
2807         def_bool HIGH_RES_TIMERS
2808 
2809 source "kernel/Kconfig.preempt"
2810 
2811 config KEXEC
2812         bool "Kexec system call"
2813         select KEXEC_CORE
2814         help
2815           kexec is a system call that implements the ability to shutdown your
2816           current kernel, and to start another kernel.  It is like a reboot
2817           but it is independent of the system firmware.   And like a reboot
2818           you can start any kernel with it, not just Linux.
2819 
2820           The name comes from the similarity to the exec system call.
2821 
2822           It is an ongoing process to be certain the hardware in a machine
2823           is properly shutdown, so do not be surprised if this code does not
2824           initially work for you.  As of this writing the exact hardware
2825           interface is strongly in flux, so no good recommendation can be
2826           made.
2827 
2828 config CRASH_DUMP
2829           bool "Kernel crash dumps"
2830           help
2831           Generate crash dump after being started by kexec.
2832           This should be normally only set in special crash dump kernels
2833           which are loaded in the main kernel with kexec-tools into
2834           a specially reserved region and then later executed after
2835           a crash by kdump/kexec. The crash dump kernel must be compiled
2836           to a memory address not used by the main kernel or firmware using
2837           PHYSICAL_START.
2838 
2839 config PHYSICAL_START
2840           hex "Physical address where the kernel is loaded"
2841           default "0xffffffff84000000" if 64BIT
2842           default "0x84000000" if 32BIT
2843           depends on CRASH_DUMP
2844           help
2845           This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2846           If you plan to use kernel for capturing the crash dump change
2847           this value to start of the reserved region (the "X" value as
2848           specified in the "crashkernel=YM@XM" command line boot parameter
2849           passed to the panic-ed kernel).
2850 
2851 config SECCOMP
2852         bool "Enable seccomp to safely compute untrusted bytecode"
2853         depends on PROC_FS
2854         default y
2855         help
2856           This kernel feature is useful for number crunching applications
2857           that may need to compute untrusted bytecode during their
2858           execution. By using pipes or other transports made available to
2859           the process as file descriptors supporting the read/write
2860           syscalls, it's possible to isolate those applications in
2861           their own address space using seccomp. Once seccomp is
2862           enabled via /proc/<pid>/seccomp, it cannot be disabled
2863           and the task is only allowed to execute a few safe syscalls
2864           defined by each seccomp mode.
2865 
2866           If unsure, say Y. Only embedded should say N here.
2867 
2868 config MIPS_O32_FP64_SUPPORT
2869         bool "Support for O32 binaries using 64-bit FP"
2870         depends on 32BIT || MIPS32_O32
2871         help
2872           When this is enabled, the kernel will support use of 64-bit floating
2873           point registers with binaries using the O32 ABI along with the
2874           EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2875           32-bit MIPS systems this support is at the cost of increasing the
2876           size and complexity of the compiled FPU emulator. Thus if you are
2877           running a MIPS32 system and know that none of your userland binaries
2878           will require 64-bit floating point, you may wish to reduce the size
2879           of your kernel & potentially improve FP emulation performance by
2880           saying N here.
2881 
2882           Although binutils currently supports use of this flag the details
2883           concerning its effect upon the O32 ABI in userland are still being
2884           worked on. In order to avoid userland becoming dependant upon current
2885           behaviour before the details have been finalised, this option should
2886           be considered experimental and only enabled by those working upon
2887           said details.
2888 
2889           If unsure, say N.
2890 
2891 config USE_OF
2892         bool
2893         select OF
2894         select OF_EARLY_FLATTREE
2895         select IRQ_DOMAIN
2896 
2897 config BUILTIN_DTB
2898         bool
2899 
2900 choice
2901         prompt "Kernel appended dtb support" if USE_OF
2902         default MIPS_NO_APPENDED_DTB
2903 
2904         config MIPS_NO_APPENDED_DTB
2905                 bool "None"
2906                 help
2907                   Do not enable appended dtb support.
2908 
2909         config MIPS_ELF_APPENDED_DTB
2910                 bool "vmlinux"
2911                 help
2912                   With this option, the boot code will look for a device tree binary
2913                   DTB) included in the vmlinux ELF section .appended_dtb. By default
2914                   it is empty and the DTB can be appended using binutils command
2915                   objcopy:
2916 
2917                     objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
2918 
2919                   This is meant as a backward compatiblity convenience for those
2920                   systems with a bootloader that can't be upgraded to accommodate
2921                   the documented boot protocol using a device tree.
2922 
2923         config MIPS_RAW_APPENDED_DTB
2924                 bool "vmlinux.bin or vmlinuz.bin"
2925                 help
2926                   With this option, the boot code will look for a device tree binary
2927                   DTB) appended to raw vmlinux.bin or vmlinuz.bin.
2928                   (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
2929 
2930                   This is meant as a backward compatibility convenience for those
2931                   systems with a bootloader that can't be upgraded to accommodate
2932                   the documented boot protocol using a device tree.
2933 
2934                   Beware that there is very little in terms of protection against
2935                   this option being confused by leftover garbage in memory that might
2936                   look like a DTB header after a reboot if no actual DTB is appended
2937                   to vmlinux.bin.  Do not leave this option active in a production kernel
2938                   if you don't intend to always append a DTB.
2939 endchoice
2940 
2941 choice
2942         prompt "Kernel command line type" if !CMDLINE_OVERRIDE
2943         default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
2944                                          !MIPS_MALTA && \
2945                                          !CAVIUM_OCTEON_SOC
2946         default MIPS_CMDLINE_FROM_BOOTLOADER
2947 
2948         config MIPS_CMDLINE_FROM_DTB
2949                 depends on USE_OF
2950                 bool "Dtb kernel arguments if available"
2951 
2952         config MIPS_CMDLINE_DTB_EXTEND
2953                 depends on USE_OF
2954                 bool "Extend dtb kernel arguments with bootloader arguments"
2955 
2956         config MIPS_CMDLINE_FROM_BOOTLOADER
2957                 bool "Bootloader kernel arguments if available"
2958 
2959         config MIPS_CMDLINE_BUILTIN_EXTEND
2960                 depends on CMDLINE_BOOL
2961                 bool "Extend builtin kernel arguments with bootloader arguments"
2962 endchoice
2963 
2964 endmenu
2965 
2966 config LOCKDEP_SUPPORT
2967         bool
2968         default y
2969 
2970 config STACKTRACE_SUPPORT
2971         bool
2972         default y
2973 
2974 config HAVE_LATENCYTOP_SUPPORT
2975         bool
2976         default y
2977 
2978 config PGTABLE_LEVELS
2979         int
2980         default 3 if 64BIT && !PAGE_SIZE_64KB
2981         default 2
2982 
2983 source "init/Kconfig"
2984 
2985 source "kernel/Kconfig.freezer"
2986 
2987 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2988 
2989 config HW_HAS_EISA
2990         bool
2991 config HW_HAS_PCI
2992         bool
2993 
2994 config PCI
2995         bool "Support for PCI controller"
2996         depends on HW_HAS_PCI
2997         select PCI_DOMAINS
2998         help
2999           Find out whether you have a PCI motherboard. PCI is the name of a
3000           bus system, i.e. the way the CPU talks to the other stuff inside
3001           your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
3002           say Y, otherwise N.
3003 
3004 config HT_PCI
3005         bool "Support for HT-linked PCI"
3006         default y
3007         depends on CPU_LOONGSON3
3008         select PCI
3009         select PCI_DOMAINS
3010         help
3011           Loongson family machines use Hyper-Transport bus for inter-core
3012           connection and device connection. The PCI bus is a subordinate
3013           linked at HT. Choose Y for Loongson-3 based machines.
3014 
3015 config PCI_DOMAINS
3016         bool
3017 
3018 config PCI_DOMAINS_GENERIC
3019         bool
3020 
3021 config PCI_DRIVERS_GENERIC
3022         select PCI_DOMAINS_GENERIC if PCI_DOMAINS
3023         bool
3024 
3025 config PCI_DRIVERS_LEGACY
3026         def_bool !PCI_DRIVERS_GENERIC
3027         select NO_GENERIC_PCI_IOPORT_MAP
3028 
3029 source "drivers/pci/Kconfig"
3030 
3031 #
3032 # ISA support is now enabled via select.  Too many systems still have the one
3033 # or other ISA chip on the board that users don't know about so don't expect
3034 # users to choose the right thing ...
3035 #
3036 config ISA
3037         bool
3038 
3039 config EISA
3040         bool "EISA support"
3041         depends on HW_HAS_EISA
3042         select ISA
3043         select GENERIC_ISA_DMA
3044         ---help---
3045           The Extended Industry Standard Architecture (EISA) bus was
3046           developed as an open alternative to the IBM MicroChannel bus.
3047 
3048           The EISA bus provided some of the features of the IBM MicroChannel
3049           bus while maintaining backward compatibility with cards made for
3050           the older ISA bus.  The EISA bus saw limited use between 1988 and
3051           1995 when it was made obsolete by the PCI bus.
3052 
3053           Say Y here if you are building a kernel for an EISA-based machine.
3054 
3055           Otherwise, say N.
3056 
3057 source "drivers/eisa/Kconfig"
3058 
3059 config TC
3060         bool "TURBOchannel support"
3061         depends on MACH_DECSTATION
3062         help
3063           TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3064           processors.  TURBOchannel programming specifications are available
3065           at:
3066           <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3067           and:
3068           <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3069           Linux driver support status is documented at:
3070           <http://www.linux-mips.org/wiki/DECstation>
3071 
3072 config MMU
3073         bool
3074         default y
3075 
3076 config I8253
3077         bool
3078         select CLKSRC_I8253
3079         select CLKEVT_I8253
3080         select MIPS_EXTERNAL_TIMER
3081 
3082 config ZONE_DMA
3083         bool
3084 
3085 config ZONE_DMA32
3086         bool
3087 
3088 source "drivers/pcmcia/Kconfig"
3089 
3090 config RAPIDIO
3091         tristate "RapidIO support"
3092         depends on PCI
3093         default n
3094         help
3095           If you say Y here, the kernel will include drivers and
3096           infrastructure code to support RapidIO interconnect devices.
3097 
3098 source "drivers/rapidio/Kconfig"
3099 
3100 endmenu
3101 
3102 menu "Executable file formats"
3103 
3104 source "fs/Kconfig.binfmt"
3105 
3106 config TRAD_SIGNALS
3107         bool
3108 
3109 config MIPS32_COMPAT
3110         bool
3111 
3112 config COMPAT
3113         bool
3114 
3115 config SYSVIPC_COMPAT
3116         bool
3117 
3118 config MIPS32_O32
3119         bool "Kernel support for o32 binaries"
3120         depends on 64BIT
3121         select ARCH_WANT_OLD_COMPAT_IPC
3122         select COMPAT
3123         select MIPS32_COMPAT
3124         select SYSVIPC_COMPAT if SYSVIPC
3125         help
3126           Select this option if you want to run o32 binaries.  These are pure
3127           32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
3128           existing binaries are in this format.
3129 
3130           If unsure, say Y.
3131 
3132 config MIPS32_N32
3133         bool "Kernel support for n32 binaries"
3134         depends on 64BIT
3135         select COMPAT
3136         select MIPS32_COMPAT
3137         select SYSVIPC_COMPAT if SYSVIPC
3138         help
3139           Select this option if you want to run n32 binaries.  These are
3140           64-bit binaries using 32-bit quantities for addressing and certain
3141           data that would normally be 64-bit.  They are used in special
3142           cases.
3143 
3144           If unsure, say N.
3145 
3146 config BINFMT_ELF32
3147         bool
3148         default y if MIPS32_O32 || MIPS32_N32
3149         select ELFCORE
3150 
3151 endmenu
3152 
3153 menu "Power management options"
3154 
3155 config ARCH_HIBERNATION_POSSIBLE
3156         def_bool y
3157         depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3158 
3159 config ARCH_SUSPEND_POSSIBLE
3160         def_bool y
3161         depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3162 
3163 source "kernel/power/Kconfig"
3164 
3165 endmenu
3166 
3167 config MIPS_EXTERNAL_TIMER
3168         bool
3169 
3170 menu "CPU Power Management"
3171 
3172 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3173 source "drivers/cpufreq/Kconfig"
3174 endif
3175 
3176 source "drivers/cpuidle/Kconfig"
3177 
3178 endmenu
3179 
3180 source "net/Kconfig"
3181 
3182 source "drivers/Kconfig"
3183 
3184 source "drivers/firmware/Kconfig"
3185 
3186 source "fs/Kconfig"
3187 
3188 source "arch/mips/Kconfig.debug"
3189 
3190 source "security/Kconfig"
3191 
3192 source "crypto/Kconfig"
3193 
3194 source "lib/Kconfig"
3195 
3196 source "arch/mips/kvm/Kconfig"

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