Version:  2.0.40 2.2.26 2.4.37 3.11 3.12 3.13 3.14 3.15 3.16 3.17 3.18 3.19 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8

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 ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 34         select HAVE_DMA_CONTIGUOUS
 35         select HAVE_DMA_API_DEBUG
 36         select GENERIC_IRQ_PROBE
 37         select GENERIC_IRQ_SHOW
 38         select GENERIC_PCI_IOMAP
 39         select HAVE_ARCH_JUMP_LABEL
 40         select ARCH_WANT_IPC_PARSE_VERSION
 41         select IRQ_FORCED_THREADING
 42         select HAVE_MEMBLOCK
 43         select HAVE_MEMBLOCK_NODE_MAP
 44         select ARCH_DISCARD_MEMBLOCK
 45         select GENERIC_SMP_IDLE_THREAD
 46         select BUILDTIME_EXTABLE_SORT
 47         select GENERIC_CLOCKEVENTS
 48         select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
 49         select GENERIC_CMOS_UPDATE
 50         select HAVE_MOD_ARCH_SPECIFIC
 51         select HAVE_NMI
 52         select VIRT_TO_BUS
 53         select MODULES_USE_ELF_REL if MODULES
 54         select MODULES_USE_ELF_RELA if MODULES && 64BIT
 55         select CLONE_BACKWARDS
 56         select HAVE_DEBUG_STACKOVERFLOW
 57         select HAVE_CC_STACKPROTECTOR
 58         select CPU_PM if CPU_IDLE
 59         select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
 60         select ARCH_BINFMT_ELF_STATE
 61         select SYSCTL_EXCEPTION_TRACE
 62         select HAVE_VIRT_CPU_ACCOUNTING_GEN
 63         select HAVE_IRQ_TIME_ACCOUNTING
 64         select GENERIC_TIME_VSYSCALL
 65         select ARCH_CLOCKSOURCE_DATA
 66         select HANDLE_DOMAIN_IRQ
 67         select HAVE_EXIT_THREAD
 68         select HAVE_REGS_AND_STACK_ACCESS_API
 69 
 70 menu "Machine selection"
 71 
 72 choice
 73         prompt "System type"
 74         default SGI_IP22
 75 
 76 config MIPS_ALCHEMY
 77         bool "Alchemy processor based machines"
 78         select ARCH_PHYS_ADDR_T_64BIT
 79         select CEVT_R4K
 80         select CSRC_R4K
 81         select IRQ_MIPS_CPU
 82         select DMA_MAYBE_COHERENT       # Au1000,1500,1100 aren't, rest is
 83         select SYS_HAS_CPU_MIPS32_R1
 84         select SYS_SUPPORTS_32BIT_KERNEL
 85         select SYS_SUPPORTS_APM_EMULATION
 86         select GPIOLIB
 87         select SYS_SUPPORTS_ZBOOT
 88         select COMMON_CLK
 89 
 90 config AR7
 91         bool "Texas Instruments AR7"
 92         select BOOT_ELF32
 93         select DMA_NONCOHERENT
 94         select CEVT_R4K
 95         select CSRC_R4K
 96         select IRQ_MIPS_CPU
 97         select NO_EXCEPT_FILL
 98         select SWAP_IO_SPACE
 99         select SYS_HAS_CPU_MIPS32_R1
100         select SYS_HAS_EARLY_PRINTK
101         select SYS_SUPPORTS_32BIT_KERNEL
102         select SYS_SUPPORTS_LITTLE_ENDIAN
103         select SYS_SUPPORTS_MIPS16
104         select SYS_SUPPORTS_ZBOOT_UART16550
105         select GPIOLIB
106         select VLYNQ
107         select HAVE_CLK
108         help
109           Support for the Texas Instruments AR7 System-on-a-Chip
110           family: TNETD7100, 7200 and 7300.
111 
112 config ATH25
113         bool "Atheros AR231x/AR531x SoC support"
114         select CEVT_R4K
115         select CSRC_R4K
116         select DMA_NONCOHERENT
117         select IRQ_MIPS_CPU
118         select IRQ_DOMAIN
119         select SYS_HAS_CPU_MIPS32_R1
120         select SYS_SUPPORTS_BIG_ENDIAN
121         select SYS_SUPPORTS_32BIT_KERNEL
122         select SYS_HAS_EARLY_PRINTK
123         help
124           Support for Atheros AR231x and Atheros AR531x based boards
125 
126 config ATH79
127         bool "Atheros AR71XX/AR724X/AR913X based boards"
128         select ARCH_HAS_RESET_CONTROLLER
129         select BOOT_RAW
130         select CEVT_R4K
131         select CSRC_R4K
132         select DMA_NONCOHERENT
133         select GPIOLIB
134         select HAVE_CLK
135         select COMMON_CLK
136         select CLKDEV_LOOKUP
137         select IRQ_MIPS_CPU
138         select MIPS_MACHINE
139         select SYS_HAS_CPU_MIPS32_R2
140         select SYS_HAS_EARLY_PRINTK
141         select SYS_SUPPORTS_32BIT_KERNEL
142         select SYS_SUPPORTS_BIG_ENDIAN
143         select SYS_SUPPORTS_MIPS16
144         select SYS_SUPPORTS_ZBOOT_UART_PROM
145         select USE_OF
146         help
147           Support for the Atheros AR71XX/AR724X/AR913X SoCs.
148 
149 config BMIPS_GENERIC
150         bool "Broadcom Generic BMIPS kernel"
151         select BOOT_RAW
152         select NO_EXCEPT_FILL
153         select USE_OF
154         select CEVT_R4K
155         select CSRC_R4K
156         select SYNC_R4K
157         select COMMON_CLK
158         select BCM6345_L1_IRQ
159         select BCM7038_L1_IRQ
160         select BCM7120_L2_IRQ
161         select BRCMSTB_L2_IRQ
162         select IRQ_MIPS_CPU
163         select DMA_NONCOHERENT
164         select SYS_SUPPORTS_32BIT_KERNEL
165         select SYS_SUPPORTS_LITTLE_ENDIAN
166         select SYS_SUPPORTS_BIG_ENDIAN
167         select SYS_SUPPORTS_HIGHMEM
168         select SYS_HAS_CPU_BMIPS32_3300
169         select SYS_HAS_CPU_BMIPS4350
170         select SYS_HAS_CPU_BMIPS4380
171         select SYS_HAS_CPU_BMIPS5000
172         select SWAP_IO_SPACE
173         select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
174         select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
175         select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
176         select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
177         help
178           Build a generic DT-based kernel image that boots on select
179           BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
180           box chips.  Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
181           must be set appropriately for your board.
182 
183 config BCM47XX
184         bool "Broadcom BCM47XX based boards"
185         select BOOT_RAW
186         select CEVT_R4K
187         select CSRC_R4K
188         select DMA_NONCOHERENT
189         select HW_HAS_PCI
190         select IRQ_MIPS_CPU
191         select SYS_HAS_CPU_MIPS32_R1
192         select NO_EXCEPT_FILL
193         select SYS_SUPPORTS_32BIT_KERNEL
194         select SYS_SUPPORTS_LITTLE_ENDIAN
195         select SYS_SUPPORTS_MIPS16
196         select SYS_HAS_EARLY_PRINTK
197         select USE_GENERIC_EARLY_PRINTK_8250
198         select GPIOLIB
199         select LEDS_GPIO_REGISTER
200         select BCM47XX_NVRAM
201         select BCM47XX_SPROM
202         help
203          Support for BCM47XX based boards
204 
205 config BCM63XX
206         bool "Broadcom BCM63XX based boards"
207         select BOOT_RAW
208         select CEVT_R4K
209         select CSRC_R4K
210         select SYNC_R4K
211         select DMA_NONCOHERENT
212         select IRQ_MIPS_CPU
213         select SYS_SUPPORTS_32BIT_KERNEL
214         select SYS_SUPPORTS_BIG_ENDIAN
215         select SYS_HAS_EARLY_PRINTK
216         select SWAP_IO_SPACE
217         select GPIOLIB
218         select HAVE_CLK
219         select MIPS_L1_CACHE_SHIFT_4
220         help
221          Support for BCM63XX based boards
222 
223 config MIPS_COBALT
224         bool "Cobalt Server"
225         select CEVT_R4K
226         select CSRC_R4K
227         select CEVT_GT641XX
228         select DMA_NONCOHERENT
229         select HW_HAS_PCI
230         select I8253
231         select I8259
232         select IRQ_MIPS_CPU
233         select IRQ_GT641XX
234         select PCI_GT64XXX_PCI0
235         select PCI
236         select SYS_HAS_CPU_NEVADA
237         select SYS_HAS_EARLY_PRINTK
238         select SYS_SUPPORTS_32BIT_KERNEL
239         select SYS_SUPPORTS_64BIT_KERNEL
240         select SYS_SUPPORTS_LITTLE_ENDIAN
241         select USE_GENERIC_EARLY_PRINTK_8250
242 
243 config MACH_DECSTATION
244         bool "DECstations"
245         select BOOT_ELF32
246         select CEVT_DS1287
247         select CEVT_R4K if CPU_R4X00
248         select CSRC_IOASIC
249         select CSRC_R4K if CPU_R4X00
250         select CPU_DADDI_WORKAROUNDS if 64BIT
251         select CPU_R4000_WORKAROUNDS if 64BIT
252         select CPU_R4400_WORKAROUNDS if 64BIT
253         select DMA_NONCOHERENT
254         select NO_IOPORT_MAP
255         select IRQ_MIPS_CPU
256         select SYS_HAS_CPU_R3000
257         select SYS_HAS_CPU_R4X00
258         select SYS_SUPPORTS_32BIT_KERNEL
259         select SYS_SUPPORTS_64BIT_KERNEL
260         select SYS_SUPPORTS_LITTLE_ENDIAN
261         select SYS_SUPPORTS_128HZ
262         select SYS_SUPPORTS_256HZ
263         select SYS_SUPPORTS_1024HZ
264         select MIPS_L1_CACHE_SHIFT_4
265         help
266           This enables support for DEC's MIPS based workstations.  For details
267           see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
268           DECstation porting pages on <http://decstation.unix-ag.org/>.
269 
270           If you have one of the following DECstation Models you definitely
271           want to choose R4xx0 for the CPU Type:
272 
273                 DECstation 5000/50
274                 DECstation 5000/150
275                 DECstation 5000/260
276                 DECsystem 5900/260
277 
278           otherwise choose R3000.
279 
280 config MACH_JAZZ
281         bool "Jazz family of machines"
282         select FW_ARC
283         select FW_ARC32
284         select ARCH_MAY_HAVE_PC_FDC
285         select CEVT_R4K
286         select CSRC_R4K
287         select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
288         select GENERIC_ISA_DMA
289         select HAVE_PCSPKR_PLATFORM
290         select IRQ_MIPS_CPU
291         select I8253
292         select I8259
293         select ISA
294         select SYS_HAS_CPU_R4X00
295         select SYS_SUPPORTS_32BIT_KERNEL
296         select SYS_SUPPORTS_64BIT_KERNEL
297         select SYS_SUPPORTS_100HZ
298         help
299          This a family of machines based on the MIPS R4030 chipset which was
300          used by several vendors to build RISC/os and Windows NT workstations.
301          Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
302          Olivetti M700-10 workstations.
303 
304 config MACH_INGENIC
305         bool "Ingenic SoC based machines"
306         select SYS_SUPPORTS_32BIT_KERNEL
307         select SYS_SUPPORTS_LITTLE_ENDIAN
308         select SYS_SUPPORTS_ZBOOT_UART16550
309         select DMA_NONCOHERENT
310         select IRQ_MIPS_CPU
311         select GPIOLIB
312         select COMMON_CLK
313         select GENERIC_IRQ_CHIP
314         select BUILTIN_DTB
315         select USE_OF
316         select LIBFDT
317 
318 config LANTIQ
319         bool "Lantiq based platforms"
320         select DMA_NONCOHERENT
321         select IRQ_MIPS_CPU
322         select CEVT_R4K
323         select CSRC_R4K
324         select SYS_HAS_CPU_MIPS32_R1
325         select SYS_HAS_CPU_MIPS32_R2
326         select SYS_SUPPORTS_BIG_ENDIAN
327         select SYS_SUPPORTS_32BIT_KERNEL
328         select SYS_SUPPORTS_MIPS16
329         select SYS_SUPPORTS_MULTITHREADING
330         select SYS_HAS_EARLY_PRINTK
331         select GPIOLIB
332         select SWAP_IO_SPACE
333         select BOOT_RAW
334         select CLKDEV_LOOKUP
335         select USE_OF
336         select PINCTRL
337         select PINCTRL_LANTIQ
338         select ARCH_HAS_RESET_CONTROLLER
339         select RESET_CONTROLLER
340 
341 config LASAT
342         bool "LASAT Networks platforms"
343         select CEVT_R4K
344         select CRC32
345         select CSRC_R4K
346         select DMA_NONCOHERENT
347         select SYS_HAS_EARLY_PRINTK
348         select HW_HAS_PCI
349         select IRQ_MIPS_CPU
350         select PCI_GT64XXX_PCI0
351         select MIPS_NILE4
352         select R5000_CPU_SCACHE
353         select SYS_HAS_CPU_R5000
354         select SYS_SUPPORTS_32BIT_KERNEL
355         select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
356         select SYS_SUPPORTS_LITTLE_ENDIAN
357 
358 config MACH_LOONGSON32
359         bool "Loongson-1 family of machines"
360         select SYS_SUPPORTS_ZBOOT
361         help
362           This enables support for the Loongson-1 family of machines.
363 
364           Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
365           the Institute of Computing Technology (ICT), Chinese Academy of
366           Sciences (CAS).
367 
368 config MACH_LOONGSON64
369         bool "Loongson-2/3 family of machines"
370         select SYS_SUPPORTS_ZBOOT
371         help
372           This enables the support of Loongson-2/3 family of machines.
373 
374           Loongson-2 is a family of single-core CPUs and Loongson-3 is a
375           family of multi-core CPUs. They are both 64-bit general-purpose
376           MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute
377           of Computing Technology (ICT), Chinese Academy of Sciences (CAS)
378           in the People's Republic of China. The chief architect is Professor
379           Weiwu Hu.
380 
381 config MACH_PISTACHIO
382         bool "IMG Pistachio SoC based boards"
383         select BOOT_ELF32
384         select BOOT_RAW
385         select CEVT_R4K
386         select CLKSRC_MIPS_GIC
387         select COMMON_CLK
388         select CSRC_R4K
389         select DMA_NONCOHERENT
390         select GPIOLIB
391         select IRQ_MIPS_CPU
392         select LIBFDT
393         select MFD_SYSCON
394         select MIPS_CPU_SCACHE
395         select MIPS_GIC
396         select PINCTRL
397         select REGULATOR
398         select SYS_HAS_CPU_MIPS32_R2
399         select SYS_SUPPORTS_32BIT_KERNEL
400         select SYS_SUPPORTS_LITTLE_ENDIAN
401         select SYS_SUPPORTS_MIPS_CPS
402         select SYS_SUPPORTS_MULTITHREADING
403         select SYS_SUPPORTS_RELOCATABLE
404         select SYS_SUPPORTS_ZBOOT
405         select SYS_HAS_EARLY_PRINTK
406         select USE_GENERIC_EARLY_PRINTK_8250
407         select USE_OF
408         help
409           This enables support for the IMG Pistachio SoC platform.
410 
411 config MACH_XILFPGA
412         bool "MIPSfpga Xilinx based boards"
413         select BOOT_ELF32
414         select BOOT_RAW
415         select BUILTIN_DTB
416         select CEVT_R4K
417         select COMMON_CLK
418         select CSRC_R4K
419         select GPIOLIB
420         select IRQ_MIPS_CPU
421         select LIBFDT
422         select MIPS_CPU_SCACHE
423         select SYS_HAS_EARLY_PRINTK
424         select SYS_HAS_CPU_MIPS32_R2
425         select SYS_SUPPORTS_32BIT_KERNEL
426         select SYS_SUPPORTS_LITTLE_ENDIAN
427         select SYS_SUPPORTS_ZBOOT_UART16550
428         select USE_OF
429         select USE_GENERIC_EARLY_PRINTK_8250
430         help
431           This enables support for the IMG University Program MIPSfpga platform.
432 
433 config MIPS_MALTA
434         bool "MIPS Malta board"
435         select ARCH_MAY_HAVE_PC_FDC
436         select BOOT_ELF32
437         select BOOT_RAW
438         select BUILTIN_DTB
439         select CEVT_R4K
440         select CSRC_R4K
441         select CLKSRC_MIPS_GIC
442         select COMMON_CLK
443         select DMA_MAYBE_COHERENT
444         select GENERIC_ISA_DMA
445         select HAVE_PCSPKR_PLATFORM
446         select IRQ_MIPS_CPU
447         select MIPS_GIC
448         select HW_HAS_PCI
449         select I8253
450         select I8259
451         select MIPS_BONITO64
452         select MIPS_CPU_SCACHE
453         select MIPS_L1_CACHE_SHIFT_6
454         select PCI_GT64XXX_PCI0
455         select MIPS_MSC
456         select SMP_UP if SMP
457         select SWAP_IO_SPACE
458         select SYS_HAS_CPU_MIPS32_R1
459         select SYS_HAS_CPU_MIPS32_R2
460         select SYS_HAS_CPU_MIPS32_R3_5
461         select SYS_HAS_CPU_MIPS32_R5
462         select SYS_HAS_CPU_MIPS32_R6
463         select SYS_HAS_CPU_MIPS64_R1
464         select SYS_HAS_CPU_MIPS64_R2
465         select SYS_HAS_CPU_MIPS64_R6
466         select SYS_HAS_CPU_NEVADA
467         select SYS_HAS_CPU_RM7000
468         select SYS_SUPPORTS_32BIT_KERNEL
469         select SYS_SUPPORTS_64BIT_KERNEL
470         select SYS_SUPPORTS_BIG_ENDIAN
471         select SYS_SUPPORTS_HIGHMEM
472         select SYS_SUPPORTS_LITTLE_ENDIAN
473         select SYS_SUPPORTS_MICROMIPS
474         select SYS_SUPPORTS_MIPS_CMP
475         select SYS_SUPPORTS_MIPS_CPS
476         select SYS_SUPPORTS_MIPS16
477         select SYS_SUPPORTS_MULTITHREADING
478         select SYS_SUPPORTS_SMARTMIPS
479         select SYS_SUPPORTS_ZBOOT
480         select SYS_SUPPORTS_RELOCATABLE
481         select USE_OF
482         select ZONE_DMA32 if 64BIT
483         select BUILTIN_DTB
484         select LIBFDT
485         help
486           This enables support for the MIPS Technologies Malta evaluation
487           board.
488 
489 config MACH_PIC32
490         bool "Microchip PIC32 Family"
491         help
492           This enables support for the Microchip PIC32 family of platforms.
493 
494           Microchip PIC32 is a family of general-purpose 32 bit MIPS core
495           microcontrollers.
496 
497 config MIPS_SEAD3
498         bool "MIPS SEAD3 board"
499         select BOOT_ELF32
500         select BOOT_RAW
501         select BUILTIN_DTB
502         select CEVT_R4K
503         select CSRC_R4K
504         select CLKSRC_MIPS_GIC
505         select COMMON_CLK
506         select CPU_MIPSR2_IRQ_VI
507         select CPU_MIPSR2_IRQ_EI
508         select DMA_NONCOHERENT
509         select IRQ_MIPS_CPU
510         select MIPS_GIC
511         select LIBFDT
512         select MIPS_MSC
513         select SYS_HAS_CPU_MIPS32_R1
514         select SYS_HAS_CPU_MIPS32_R2
515         select SYS_HAS_CPU_MIPS32_R6
516         select SYS_HAS_CPU_MIPS64_R1
517         select SYS_HAS_EARLY_PRINTK
518         select SYS_SUPPORTS_32BIT_KERNEL
519         select SYS_SUPPORTS_64BIT_KERNEL
520         select SYS_SUPPORTS_BIG_ENDIAN
521         select SYS_SUPPORTS_LITTLE_ENDIAN
522         select SYS_SUPPORTS_SMARTMIPS
523         select SYS_SUPPORTS_MICROMIPS
524         select SYS_SUPPORTS_MIPS16
525         select SYS_SUPPORTS_RELOCATABLE
526         select USB_EHCI_BIG_ENDIAN_DESC
527         select USB_EHCI_BIG_ENDIAN_MMIO
528         select USE_OF
529         help
530           This enables support for the MIPS Technologies SEAD3 evaluation
531           board.
532 
533 config NEC_MARKEINS
534         bool "NEC EMMA2RH Mark-eins board"
535         select SOC_EMMA2RH
536         select HW_HAS_PCI
537         help
538           This enables support for the NEC Electronics Mark-eins boards.
539 
540 config MACH_VR41XX
541         bool "NEC VR4100 series based machines"
542         select CEVT_R4K
543         select CSRC_R4K
544         select SYS_HAS_CPU_VR41XX
545         select SYS_SUPPORTS_MIPS16
546         select GPIOLIB
547 
548 config NXP_STB220
549         bool "NXP STB220 board"
550         select SOC_PNX833X
551         help
552          Support for NXP Semiconductors STB220 Development Board.
553 
554 config NXP_STB225
555         bool "NXP 225 board"
556         select SOC_PNX833X
557         select SOC_PNX8335
558         help
559          Support for NXP Semiconductors STB225 Development Board.
560 
561 config PMC_MSP
562         bool "PMC-Sierra MSP chipsets"
563         select CEVT_R4K
564         select CSRC_R4K
565         select DMA_NONCOHERENT
566         select SWAP_IO_SPACE
567         select NO_EXCEPT_FILL
568         select BOOT_RAW
569         select SYS_HAS_CPU_MIPS32_R1
570         select SYS_HAS_CPU_MIPS32_R2
571         select SYS_SUPPORTS_32BIT_KERNEL
572         select SYS_SUPPORTS_BIG_ENDIAN
573         select SYS_SUPPORTS_MIPS16
574         select IRQ_MIPS_CPU
575         select SERIAL_8250
576         select SERIAL_8250_CONSOLE
577         select USB_EHCI_BIG_ENDIAN_MMIO
578         select USB_EHCI_BIG_ENDIAN_DESC
579         help
580           This adds support for the PMC-Sierra family of Multi-Service
581           Processor System-On-A-Chips.  These parts include a number
582           of integrated peripherals, interfaces and DSPs in addition to
583           a variety of MIPS cores.
584 
585 config RALINK
586         bool "Ralink based machines"
587         select CEVT_R4K
588         select CSRC_R4K
589         select BOOT_RAW
590         select DMA_NONCOHERENT
591         select IRQ_MIPS_CPU
592         select USE_OF
593         select SYS_HAS_CPU_MIPS32_R1
594         select SYS_HAS_CPU_MIPS32_R2
595         select SYS_SUPPORTS_32BIT_KERNEL
596         select SYS_SUPPORTS_LITTLE_ENDIAN
597         select SYS_SUPPORTS_MIPS16
598         select SYS_HAS_EARLY_PRINTK
599         select CLKDEV_LOOKUP
600         select ARCH_HAS_RESET_CONTROLLER
601         select RESET_CONTROLLER
602 
603 config SGI_IP22
604         bool "SGI IP22 (Indy/Indigo2)"
605         select FW_ARC
606         select FW_ARC32
607         select BOOT_ELF32
608         select CEVT_R4K
609         select CSRC_R4K
610         select DEFAULT_SGI_PARTITION
611         select DMA_NONCOHERENT
612         select HW_HAS_EISA
613         select I8253
614         select I8259
615         select IP22_CPU_SCACHE
616         select IRQ_MIPS_CPU
617         select GENERIC_ISA_DMA_SUPPORT_BROKEN
618         select SGI_HAS_I8042
619         select SGI_HAS_INDYDOG
620         select SGI_HAS_HAL2
621         select SGI_HAS_SEEQ
622         select SGI_HAS_WD93
623         select SGI_HAS_ZILOG
624         select SWAP_IO_SPACE
625         select SYS_HAS_CPU_R4X00
626         select SYS_HAS_CPU_R5000
627         #
628         # Disable EARLY_PRINTK for now since it leads to overwritten prom
629         # memory during early boot on some machines.
630         #
631         # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
632         # for a more details discussion
633         #
634         # select SYS_HAS_EARLY_PRINTK
635         select SYS_SUPPORTS_32BIT_KERNEL
636         select SYS_SUPPORTS_64BIT_KERNEL
637         select SYS_SUPPORTS_BIG_ENDIAN
638         select MIPS_L1_CACHE_SHIFT_7
639         help
640           This are the SGI Indy, Challenge S and Indigo2, as well as certain
641           OEM variants like the Tandem CMN B006S. To compile a Linux kernel
642           that runs on these, say Y here.
643 
644 config SGI_IP27
645         bool "SGI IP27 (Origin200/2000)"
646         select FW_ARC
647         select FW_ARC64
648         select BOOT_ELF64
649         select DEFAULT_SGI_PARTITION
650         select DMA_COHERENT
651         select SYS_HAS_EARLY_PRINTK
652         select HW_HAS_PCI
653         select NR_CPUS_DEFAULT_64
654         select SYS_HAS_CPU_R10000
655         select SYS_SUPPORTS_64BIT_KERNEL
656         select SYS_SUPPORTS_BIG_ENDIAN
657         select SYS_SUPPORTS_NUMA
658         select SYS_SUPPORTS_SMP
659         select MIPS_L1_CACHE_SHIFT_7
660         help
661           This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
662           workstations.  To compile a Linux kernel that runs on these, say Y
663           here.
664 
665 config SGI_IP28
666         bool "SGI IP28 (Indigo2 R10k)"
667         select FW_ARC
668         select FW_ARC64
669         select BOOT_ELF64
670         select CEVT_R4K
671         select CSRC_R4K
672         select DEFAULT_SGI_PARTITION
673         select DMA_NONCOHERENT
674         select GENERIC_ISA_DMA_SUPPORT_BROKEN
675         select IRQ_MIPS_CPU
676         select HW_HAS_EISA
677         select I8253
678         select I8259
679         select SGI_HAS_I8042
680         select SGI_HAS_INDYDOG
681         select SGI_HAS_HAL2
682         select SGI_HAS_SEEQ
683         select SGI_HAS_WD93
684         select SGI_HAS_ZILOG
685         select SWAP_IO_SPACE
686         select SYS_HAS_CPU_R10000
687         #
688         # Disable EARLY_PRINTK for now since it leads to overwritten prom
689         # memory during early boot on some machines.
690         #
691         # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
692         # for a more details discussion
693         #
694         # select SYS_HAS_EARLY_PRINTK
695         select SYS_SUPPORTS_64BIT_KERNEL
696         select SYS_SUPPORTS_BIG_ENDIAN
697         select MIPS_L1_CACHE_SHIFT_7
698       help
699         This is the SGI Indigo2 with R10000 processor.  To compile a Linux
700         kernel that runs on these, say Y here.
701 
702 config SGI_IP32
703         bool "SGI IP32 (O2)"
704         select FW_ARC
705         select FW_ARC32
706         select BOOT_ELF32
707         select CEVT_R4K
708         select CSRC_R4K
709         select DMA_NONCOHERENT
710         select HW_HAS_PCI
711         select IRQ_MIPS_CPU
712         select R5000_CPU_SCACHE
713         select RM7000_CPU_SCACHE
714         select SYS_HAS_CPU_R5000
715         select SYS_HAS_CPU_R10000 if BROKEN
716         select SYS_HAS_CPU_RM7000
717         select SYS_HAS_CPU_NEVADA
718         select SYS_SUPPORTS_64BIT_KERNEL
719         select SYS_SUPPORTS_BIG_ENDIAN
720         help
721           If you want this kernel to run on SGI O2 workstation, say Y here.
722 
723 config SIBYTE_CRHINE
724         bool "Sibyte BCM91120C-CRhine"
725         select BOOT_ELF32
726         select DMA_COHERENT
727         select SIBYTE_BCM1120
728         select SWAP_IO_SPACE
729         select SYS_HAS_CPU_SB1
730         select SYS_SUPPORTS_BIG_ENDIAN
731         select SYS_SUPPORTS_LITTLE_ENDIAN
732 
733 config SIBYTE_CARMEL
734         bool "Sibyte BCM91120x-Carmel"
735         select BOOT_ELF32
736         select DMA_COHERENT
737         select SIBYTE_BCM1120
738         select SWAP_IO_SPACE
739         select SYS_HAS_CPU_SB1
740         select SYS_SUPPORTS_BIG_ENDIAN
741         select SYS_SUPPORTS_LITTLE_ENDIAN
742 
743 config SIBYTE_CRHONE
744         bool "Sibyte BCM91125C-CRhone"
745         select BOOT_ELF32
746         select DMA_COHERENT
747         select SIBYTE_BCM1125
748         select SWAP_IO_SPACE
749         select SYS_HAS_CPU_SB1
750         select SYS_SUPPORTS_BIG_ENDIAN
751         select SYS_SUPPORTS_HIGHMEM
752         select SYS_SUPPORTS_LITTLE_ENDIAN
753 
754 config SIBYTE_RHONE
755         bool "Sibyte BCM91125E-Rhone"
756         select BOOT_ELF32
757         select DMA_COHERENT
758         select SIBYTE_BCM1125H
759         select SWAP_IO_SPACE
760         select SYS_HAS_CPU_SB1
761         select SYS_SUPPORTS_BIG_ENDIAN
762         select SYS_SUPPORTS_LITTLE_ENDIAN
763 
764 config SIBYTE_SWARM
765         bool "Sibyte BCM91250A-SWARM"
766         select BOOT_ELF32
767         select DMA_COHERENT
768         select HAVE_PATA_PLATFORM
769         select SIBYTE_SB1250
770         select SWAP_IO_SPACE
771         select SYS_HAS_CPU_SB1
772         select SYS_SUPPORTS_BIG_ENDIAN
773         select SYS_SUPPORTS_HIGHMEM
774         select SYS_SUPPORTS_LITTLE_ENDIAN
775         select ZONE_DMA32 if 64BIT
776 
777 config SIBYTE_LITTLESUR
778         bool "Sibyte BCM91250C2-LittleSur"
779         select BOOT_ELF32
780         select DMA_COHERENT
781         select HAVE_PATA_PLATFORM
782         select SIBYTE_SB1250
783         select SWAP_IO_SPACE
784         select SYS_HAS_CPU_SB1
785         select SYS_SUPPORTS_BIG_ENDIAN
786         select SYS_SUPPORTS_HIGHMEM
787         select SYS_SUPPORTS_LITTLE_ENDIAN
788 
789 config SIBYTE_SENTOSA
790         bool "Sibyte BCM91250E-Sentosa"
791         select BOOT_ELF32
792         select DMA_COHERENT
793         select SIBYTE_SB1250
794         select SWAP_IO_SPACE
795         select SYS_HAS_CPU_SB1
796         select SYS_SUPPORTS_BIG_ENDIAN
797         select SYS_SUPPORTS_LITTLE_ENDIAN
798 
799 config SIBYTE_BIGSUR
800         bool "Sibyte BCM91480B-BigSur"
801         select BOOT_ELF32
802         select DMA_COHERENT
803         select NR_CPUS_DEFAULT_4
804         select SIBYTE_BCM1x80
805         select SWAP_IO_SPACE
806         select SYS_HAS_CPU_SB1
807         select SYS_SUPPORTS_BIG_ENDIAN
808         select SYS_SUPPORTS_HIGHMEM
809         select SYS_SUPPORTS_LITTLE_ENDIAN
810         select ZONE_DMA32 if 64BIT
811 
812 config SNI_RM
813         bool "SNI RM200/300/400"
814         select FW_ARC if CPU_LITTLE_ENDIAN
815         select FW_ARC32 if CPU_LITTLE_ENDIAN
816         select FW_SNIPROM if CPU_BIG_ENDIAN
817         select ARCH_MAY_HAVE_PC_FDC
818         select BOOT_ELF32
819         select CEVT_R4K
820         select CSRC_R4K
821         select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
822         select DMA_NONCOHERENT
823         select GENERIC_ISA_DMA
824         select HAVE_PCSPKR_PLATFORM
825         select HW_HAS_EISA
826         select HW_HAS_PCI
827         select IRQ_MIPS_CPU
828         select I8253
829         select I8259
830         select ISA
831         select SWAP_IO_SPACE if CPU_BIG_ENDIAN
832         select SYS_HAS_CPU_R4X00
833         select SYS_HAS_CPU_R5000
834         select SYS_HAS_CPU_R10000
835         select R5000_CPU_SCACHE
836         select SYS_HAS_EARLY_PRINTK
837         select SYS_SUPPORTS_32BIT_KERNEL
838         select SYS_SUPPORTS_64BIT_KERNEL
839         select SYS_SUPPORTS_BIG_ENDIAN
840         select SYS_SUPPORTS_HIGHMEM
841         select SYS_SUPPORTS_LITTLE_ENDIAN
842         help
843           The SNI RM200/300/400 are MIPS-based machines manufactured by
844           Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
845           Technology and now in turn merged with Fujitsu.  Say Y here to
846           support this machine type.
847 
848 config MACH_TX39XX
849         bool "Toshiba TX39 series based machines"
850 
851 config MACH_TX49XX
852         bool "Toshiba TX49 series based machines"
853 
854 config MIKROTIK_RB532
855         bool "Mikrotik RB532 boards"
856         select CEVT_R4K
857         select CSRC_R4K
858         select DMA_NONCOHERENT
859         select HW_HAS_PCI
860         select IRQ_MIPS_CPU
861         select SYS_HAS_CPU_MIPS32_R1
862         select SYS_SUPPORTS_32BIT_KERNEL
863         select SYS_SUPPORTS_LITTLE_ENDIAN
864         select SWAP_IO_SPACE
865         select BOOT_RAW
866         select GPIOLIB
867         select MIPS_L1_CACHE_SHIFT_4
868         help
869           Support the Mikrotik(tm) RouterBoard 532 series,
870           based on the IDT RC32434 SoC.
871 
872 config CAVIUM_OCTEON_SOC
873         bool "Cavium Networks Octeon SoC based boards"
874         select CEVT_R4K
875         select ARCH_PHYS_ADDR_T_64BIT
876         select DMA_COHERENT
877         select SYS_SUPPORTS_64BIT_KERNEL
878         select SYS_SUPPORTS_BIG_ENDIAN
879         select EDAC_SUPPORT
880         select EDAC_ATOMIC_SCRUB
881         select SYS_SUPPORTS_LITTLE_ENDIAN
882         select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
883         select SYS_HAS_EARLY_PRINTK
884         select SYS_HAS_CPU_CAVIUM_OCTEON
885         select HW_HAS_PCI
886         select ZONE_DMA32
887         select HOLES_IN_ZONE
888         select GPIOLIB
889         select LIBFDT
890         select USE_OF
891         select ARCH_SPARSEMEM_ENABLE
892         select SYS_SUPPORTS_SMP
893         select NR_CPUS_DEFAULT_16
894         select BUILTIN_DTB
895         select MTD_COMPLEX_MAPPINGS
896         help
897           This option supports all of the Octeon reference boards from Cavium
898           Networks. It builds a kernel that dynamically determines the Octeon
899           CPU type and supports all known board reference implementations.
900           Some of the supported boards are:
901                 EBT3000
902                 EBH3000
903                 EBH3100
904                 Thunder
905                 Kodama
906                 Hikari
907           Say Y here for most Octeon reference boards.
908 
909 config NLM_XLR_BOARD
910         bool "Netlogic XLR/XLS based systems"
911         select BOOT_ELF32
912         select NLM_COMMON
913         select SYS_HAS_CPU_XLR
914         select SYS_SUPPORTS_SMP
915         select HW_HAS_PCI
916         select SWAP_IO_SPACE
917         select SYS_SUPPORTS_32BIT_KERNEL
918         select SYS_SUPPORTS_64BIT_KERNEL
919         select ARCH_PHYS_ADDR_T_64BIT
920         select SYS_SUPPORTS_BIG_ENDIAN
921         select SYS_SUPPORTS_HIGHMEM
922         select DMA_COHERENT
923         select NR_CPUS_DEFAULT_32
924         select CEVT_R4K
925         select CSRC_R4K
926         select IRQ_MIPS_CPU
927         select ZONE_DMA32 if 64BIT
928         select SYNC_R4K
929         select SYS_HAS_EARLY_PRINTK
930         select SYS_SUPPORTS_ZBOOT
931         select SYS_SUPPORTS_ZBOOT_UART16550
932         help
933           Support for systems based on Netlogic XLR and XLS processors.
934           Say Y here if you have a XLR or XLS based board.
935 
936 config NLM_XLP_BOARD
937         bool "Netlogic XLP based systems"
938         select BOOT_ELF32
939         select NLM_COMMON
940         select SYS_HAS_CPU_XLP
941         select SYS_SUPPORTS_SMP
942         select HW_HAS_PCI
943         select SYS_SUPPORTS_32BIT_KERNEL
944         select SYS_SUPPORTS_64BIT_KERNEL
945         select ARCH_PHYS_ADDR_T_64BIT
946         select GPIOLIB
947         select SYS_SUPPORTS_BIG_ENDIAN
948         select SYS_SUPPORTS_LITTLE_ENDIAN
949         select SYS_SUPPORTS_HIGHMEM
950         select DMA_COHERENT
951         select NR_CPUS_DEFAULT_32
952         select CEVT_R4K
953         select CSRC_R4K
954         select IRQ_MIPS_CPU
955         select ZONE_DMA32 if 64BIT
956         select SYNC_R4K
957         select SYS_HAS_EARLY_PRINTK
958         select USE_OF
959         select SYS_SUPPORTS_ZBOOT
960         select SYS_SUPPORTS_ZBOOT_UART16550
961         help
962           This board is based on Netlogic XLP Processor.
963           Say Y here if you have a XLP based board.
964 
965 config MIPS_PARAVIRT
966         bool "Para-Virtualized guest system"
967         select CEVT_R4K
968         select CSRC_R4K
969         select DMA_COHERENT
970         select SYS_SUPPORTS_64BIT_KERNEL
971         select SYS_SUPPORTS_32BIT_KERNEL
972         select SYS_SUPPORTS_BIG_ENDIAN
973         select SYS_SUPPORTS_SMP
974         select NR_CPUS_DEFAULT_4
975         select SYS_HAS_EARLY_PRINTK
976         select SYS_HAS_CPU_MIPS32_R2
977         select SYS_HAS_CPU_MIPS64_R2
978         select SYS_HAS_CPU_CAVIUM_OCTEON
979         select HW_HAS_PCI
980         select SWAP_IO_SPACE
981         help
982           This option supports guest running under ????
983 
984 endchoice
985 
986 source "arch/mips/alchemy/Kconfig"
987 source "arch/mips/ath25/Kconfig"
988 source "arch/mips/ath79/Kconfig"
989 source "arch/mips/bcm47xx/Kconfig"
990 source "arch/mips/bcm63xx/Kconfig"
991 source "arch/mips/bmips/Kconfig"
992 source "arch/mips/jazz/Kconfig"
993 source "arch/mips/jz4740/Kconfig"
994 source "arch/mips/lantiq/Kconfig"
995 source "arch/mips/lasat/Kconfig"
996 source "arch/mips/pic32/Kconfig"
997 source "arch/mips/pistachio/Kconfig"
998 source "arch/mips/pmcs-msp71xx/Kconfig"
999 source "arch/mips/ralink/Kconfig"
1000 source "arch/mips/sgi-ip27/Kconfig"
1001 source "arch/mips/sibyte/Kconfig"
1002 source "arch/mips/txx9/Kconfig"
1003 source "arch/mips/vr41xx/Kconfig"
1004 source "arch/mips/cavium-octeon/Kconfig"
1005 source "arch/mips/loongson32/Kconfig"
1006 source "arch/mips/loongson64/Kconfig"
1007 source "arch/mips/netlogic/Kconfig"
1008 source "arch/mips/paravirt/Kconfig"
1009 source "arch/mips/xilfpga/Kconfig"
1010 
1011 endmenu
1012 
1013 config RWSEM_GENERIC_SPINLOCK
1014         bool
1015         default y
1016 
1017 config RWSEM_XCHGADD_ALGORITHM
1018         bool
1019 
1020 config ARCH_HAS_ILOG2_U32
1021         bool
1022         default n
1023 
1024 config ARCH_HAS_ILOG2_U64
1025         bool
1026         default n
1027 
1028 config GENERIC_HWEIGHT
1029         bool
1030         default y
1031 
1032 config GENERIC_CALIBRATE_DELAY
1033         bool
1034         default y
1035 
1036 config SCHED_OMIT_FRAME_POINTER
1037         bool
1038         default y
1039 
1040 #
1041 # Select some configuration options automatically based on user selections.
1042 #
1043 config FW_ARC
1044         bool
1045 
1046 config ARCH_MAY_HAVE_PC_FDC
1047         bool
1048 
1049 config BOOT_RAW
1050         bool
1051 
1052 config CEVT_BCM1480
1053         bool
1054 
1055 config CEVT_DS1287
1056         bool
1057 
1058 config CEVT_GT641XX
1059         bool
1060 
1061 config CEVT_R4K
1062         bool
1063 
1064 config CEVT_SB1250
1065         bool
1066 
1067 config CEVT_TXX9
1068         bool
1069 
1070 config CSRC_BCM1480
1071         bool
1072 
1073 config CSRC_IOASIC
1074         bool
1075 
1076 config CSRC_R4K
1077         bool
1078 
1079 config CSRC_SB1250
1080         bool
1081 
1082 config MIPS_CLOCK_VSYSCALL
1083         def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1084 
1085 config GPIO_TXX9
1086         select GPIOLIB
1087         bool
1088 
1089 config FW_CFE
1090         bool
1091 
1092 config ARCH_DMA_ADDR_T_64BIT
1093         def_bool (HIGHMEM && ARCH_PHYS_ADDR_T_64BIT) || 64BIT
1094 
1095 config ARCH_SUPPORTS_UPROBES
1096         bool
1097 
1098 config DMA_MAYBE_COHERENT
1099         select DMA_NONCOHERENT
1100         bool
1101 
1102 config DMA_COHERENT
1103         bool
1104 
1105 config DMA_NONCOHERENT
1106         bool
1107         select NEED_DMA_MAP_STATE
1108 
1109 config NEED_DMA_MAP_STATE
1110         bool
1111 
1112 config SYS_HAS_EARLY_PRINTK
1113         bool
1114 
1115 config SYS_SUPPORTS_HOTPLUG_CPU
1116         bool
1117 
1118 config MIPS_BONITO64
1119         bool
1120 
1121 config MIPS_MSC
1122         bool
1123 
1124 config MIPS_NILE4
1125         bool
1126 
1127 config SYNC_R4K
1128         bool
1129 
1130 config MIPS_MACHINE
1131         def_bool n
1132 
1133 config NO_IOPORT_MAP
1134         def_bool n
1135 
1136 config GENERIC_CSUM
1137         bool
1138 
1139 config GENERIC_ISA_DMA
1140         bool
1141         select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1142         select ISA_DMA_API
1143 
1144 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1145         bool
1146         select GENERIC_ISA_DMA
1147 
1148 config ISA_DMA_API
1149         bool
1150 
1151 config HOLES_IN_ZONE
1152         bool
1153 
1154 config SYS_SUPPORTS_RELOCATABLE
1155         bool
1156         help
1157          Selected if the platform supports relocating the kernel.
1158          The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1159          to allow access to command line and entropy sources.
1160 
1161 #
1162 # Endianness selection.  Sufficiently obscure so many users don't know what to
1163 # answer,so we try hard to limit the available choices.  Also the use of a
1164 # choice statement should be more obvious to the user.
1165 #
1166 choice
1167         prompt "Endianness selection"
1168         help
1169           Some MIPS machines can be configured for either little or big endian
1170           byte order. These modes require different kernels and a different
1171           Linux distribution.  In general there is one preferred byteorder for a
1172           particular system but some systems are just as commonly used in the
1173           one or the other endianness.
1174 
1175 config CPU_BIG_ENDIAN
1176         bool "Big endian"
1177         depends on SYS_SUPPORTS_BIG_ENDIAN
1178 
1179 config CPU_LITTLE_ENDIAN
1180         bool "Little endian"
1181         depends on SYS_SUPPORTS_LITTLE_ENDIAN
1182 
1183 endchoice
1184 
1185 config EXPORT_UASM
1186         bool
1187 
1188 config SYS_SUPPORTS_APM_EMULATION
1189         bool
1190 
1191 config SYS_SUPPORTS_BIG_ENDIAN
1192         bool
1193 
1194 config SYS_SUPPORTS_LITTLE_ENDIAN
1195         bool
1196 
1197 config SYS_SUPPORTS_HUGETLBFS
1198         bool
1199         depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1200         default y
1201 
1202 config MIPS_HUGE_TLB_SUPPORT
1203         def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1204 
1205 config IRQ_CPU_RM7K
1206         bool
1207 
1208 config IRQ_MSP_SLP
1209         bool
1210 
1211 config IRQ_MSP_CIC
1212         bool
1213 
1214 config IRQ_TXX9
1215         bool
1216 
1217 config IRQ_GT641XX
1218         bool
1219 
1220 config PCI_GT64XXX_PCI0
1221         bool
1222 
1223 config NO_EXCEPT_FILL
1224         bool
1225 
1226 config SOC_EMMA2RH
1227         bool
1228         select CEVT_R4K
1229         select CSRC_R4K
1230         select DMA_NONCOHERENT
1231         select IRQ_MIPS_CPU
1232         select SWAP_IO_SPACE
1233         select SYS_HAS_CPU_R5500
1234         select SYS_SUPPORTS_32BIT_KERNEL
1235         select SYS_SUPPORTS_64BIT_KERNEL
1236         select SYS_SUPPORTS_BIG_ENDIAN
1237 
1238 config SOC_PNX833X
1239         bool
1240         select CEVT_R4K
1241         select CSRC_R4K
1242         select IRQ_MIPS_CPU
1243         select DMA_NONCOHERENT
1244         select SYS_HAS_CPU_MIPS32_R2
1245         select SYS_SUPPORTS_32BIT_KERNEL
1246         select SYS_SUPPORTS_LITTLE_ENDIAN
1247         select SYS_SUPPORTS_BIG_ENDIAN
1248         select SYS_SUPPORTS_MIPS16
1249         select CPU_MIPSR2_IRQ_VI
1250 
1251 config SOC_PNX8335
1252         bool
1253         select SOC_PNX833X
1254 
1255 config MIPS_SPRAM
1256         bool
1257 
1258 config SWAP_IO_SPACE
1259         bool
1260 
1261 config SGI_HAS_INDYDOG
1262         bool
1263 
1264 config SGI_HAS_HAL2
1265         bool
1266 
1267 config SGI_HAS_SEEQ
1268         bool
1269 
1270 config SGI_HAS_WD93
1271         bool
1272 
1273 config SGI_HAS_ZILOG
1274         bool
1275 
1276 config SGI_HAS_I8042
1277         bool
1278 
1279 config DEFAULT_SGI_PARTITION
1280         bool
1281 
1282 config FW_ARC32
1283         bool
1284 
1285 config FW_SNIPROM
1286         bool
1287 
1288 config BOOT_ELF32
1289         bool
1290 
1291 config MIPS_L1_CACHE_SHIFT_4
1292         bool
1293 
1294 config MIPS_L1_CACHE_SHIFT_5
1295         bool
1296 
1297 config MIPS_L1_CACHE_SHIFT_6
1298         bool
1299 
1300 config MIPS_L1_CACHE_SHIFT_7
1301         bool
1302 
1303 config MIPS_L1_CACHE_SHIFT
1304         int
1305         default "7" if MIPS_L1_CACHE_SHIFT_7
1306         default "6" if MIPS_L1_CACHE_SHIFT_6
1307         default "5" if MIPS_L1_CACHE_SHIFT_5
1308         default "4" if MIPS_L1_CACHE_SHIFT_4
1309         default "5"
1310 
1311 config HAVE_STD_PC_SERIAL_PORT
1312         bool
1313 
1314 config ARC_CONSOLE
1315         bool "ARC console support"
1316         depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1317 
1318 config ARC_MEMORY
1319         bool
1320         depends on MACH_JAZZ || SNI_RM || SGI_IP32
1321         default y
1322 
1323 config ARC_PROMLIB
1324         bool
1325         depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1326         default y
1327 
1328 config FW_ARC64
1329         bool
1330 
1331 config BOOT_ELF64
1332         bool
1333 
1334 menu "CPU selection"
1335 
1336 choice
1337         prompt "CPU type"
1338         default CPU_R4X00
1339 
1340 config CPU_LOONGSON3
1341         bool "Loongson 3 CPU"
1342         depends on SYS_HAS_CPU_LOONGSON3
1343         select CPU_SUPPORTS_64BIT_KERNEL
1344         select CPU_SUPPORTS_HIGHMEM
1345         select CPU_SUPPORTS_HUGEPAGES
1346         select WEAK_ORDERING
1347         select WEAK_REORDERING_BEYOND_LLSC
1348         select MIPS_PGD_C0_CONTEXT
1349         select GPIOLIB
1350         help
1351                 The Loongson 3 processor implements the MIPS64R2 instruction
1352                 set with many extensions.
1353 
1354 config LOONGSON3_ENHANCEMENT
1355         bool "New Loongson 3 CPU Enhancements"
1356         default n
1357         select CPU_MIPSR2
1358         select CPU_HAS_PREFETCH
1359         depends on CPU_LOONGSON3
1360         help
1361           New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A
1362           R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1363           FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User
1364           Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1365           Fast TLB refill support, etc.
1366 
1367           This option enable those enhancements which are not probed at run
1368           time. If you want a generic kernel to run on all Loongson 3 machines,
1369           please say 'N' here. If you want a high-performance kernel to run on
1370           new Loongson 3 machines only, please say 'Y' here.
1371 
1372 config CPU_LOONGSON2E
1373         bool "Loongson 2E"
1374         depends on SYS_HAS_CPU_LOONGSON2E
1375         select CPU_LOONGSON2
1376         help
1377           The Loongson 2E processor implements the MIPS III instruction set
1378           with many extensions.
1379 
1380           It has an internal FPGA northbridge, which is compatible to
1381           bonito64.
1382 
1383 config CPU_LOONGSON2F
1384         bool "Loongson 2F"
1385         depends on SYS_HAS_CPU_LOONGSON2F
1386         select CPU_LOONGSON2
1387         select GPIOLIB
1388         help
1389           The Loongson 2F processor implements the MIPS III instruction set
1390           with many extensions.
1391 
1392           Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1393           have a similar programming interface with FPGA northbridge used in
1394           Loongson2E.
1395 
1396 config CPU_LOONGSON1B
1397         bool "Loongson 1B"
1398         depends on SYS_HAS_CPU_LOONGSON1B
1399         select CPU_LOONGSON1
1400         select LEDS_GPIO_REGISTER
1401         help
1402           The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1403           release 2 instruction set.
1404 
1405 config CPU_MIPS32_R1
1406         bool "MIPS32 Release 1"
1407         depends on SYS_HAS_CPU_MIPS32_R1
1408         select CPU_HAS_PREFETCH
1409         select CPU_SUPPORTS_32BIT_KERNEL
1410         select CPU_SUPPORTS_HIGHMEM
1411         help
1412           Choose this option to build a kernel for release 1 or later of the
1413           MIPS32 architecture.  Most modern embedded systems with a 32-bit
1414           MIPS processor are based on a MIPS32 processor.  If you know the
1415           specific type of processor in your system, choose those that one
1416           otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1417           Release 2 of the MIPS32 architecture is available since several
1418           years so chances are you even have a MIPS32 Release 2 processor
1419           in which case you should choose CPU_MIPS32_R2 instead for better
1420           performance.
1421 
1422 config CPU_MIPS32_R2
1423         bool "MIPS32 Release 2"
1424         depends on SYS_HAS_CPU_MIPS32_R2
1425         select CPU_HAS_PREFETCH
1426         select CPU_SUPPORTS_32BIT_KERNEL
1427         select CPU_SUPPORTS_HIGHMEM
1428         select CPU_SUPPORTS_MSA
1429         select HAVE_KVM
1430         help
1431           Choose this option to build a kernel for release 2 or later of the
1432           MIPS32 architecture.  Most modern embedded systems with a 32-bit
1433           MIPS processor are based on a MIPS32 processor.  If you know the
1434           specific type of processor in your system, choose those that one
1435           otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1436 
1437 config CPU_MIPS32_R6
1438         bool "MIPS32 Release 6"
1439         depends on SYS_HAS_CPU_MIPS32_R6
1440         select CPU_HAS_PREFETCH
1441         select CPU_SUPPORTS_32BIT_KERNEL
1442         select CPU_SUPPORTS_HIGHMEM
1443         select CPU_SUPPORTS_MSA
1444         select GENERIC_CSUM
1445         select HAVE_KVM
1446         select MIPS_O32_FP64_SUPPORT
1447         help
1448           Choose this option to build a kernel for release 6 or later of the
1449           MIPS32 architecture.  New MIPS processors, starting with the Warrior
1450           family, are based on a MIPS32r6 processor. If you own an older
1451           processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1452 
1453 config CPU_MIPS64_R1
1454         bool "MIPS64 Release 1"
1455         depends on SYS_HAS_CPU_MIPS64_R1
1456         select CPU_HAS_PREFETCH
1457         select CPU_SUPPORTS_32BIT_KERNEL
1458         select CPU_SUPPORTS_64BIT_KERNEL
1459         select CPU_SUPPORTS_HIGHMEM
1460         select CPU_SUPPORTS_HUGEPAGES
1461         help
1462           Choose this option to build a kernel for release 1 or later of the
1463           MIPS64 architecture.  Many modern embedded systems with a 64-bit
1464           MIPS processor are based on a MIPS64 processor.  If you know the
1465           specific type of processor in your system, choose those that one
1466           otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1467           Release 2 of the MIPS64 architecture is available since several
1468           years so chances are you even have a MIPS64 Release 2 processor
1469           in which case you should choose CPU_MIPS64_R2 instead for better
1470           performance.
1471 
1472 config CPU_MIPS64_R2
1473         bool "MIPS64 Release 2"
1474         depends on SYS_HAS_CPU_MIPS64_R2
1475         select CPU_HAS_PREFETCH
1476         select CPU_SUPPORTS_32BIT_KERNEL
1477         select CPU_SUPPORTS_64BIT_KERNEL
1478         select CPU_SUPPORTS_HIGHMEM
1479         select CPU_SUPPORTS_HUGEPAGES
1480         select CPU_SUPPORTS_MSA
1481         select HAVE_KVM
1482         help
1483           Choose this option to build a kernel for release 2 or later of the
1484           MIPS64 architecture.  Many modern embedded systems with a 64-bit
1485           MIPS processor are based on a MIPS64 processor.  If you know the
1486           specific type of processor in your system, choose those that one
1487           otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1488 
1489 config CPU_MIPS64_R6
1490         bool "MIPS64 Release 6"
1491         depends on SYS_HAS_CPU_MIPS64_R6
1492         select CPU_HAS_PREFETCH
1493         select CPU_SUPPORTS_32BIT_KERNEL
1494         select CPU_SUPPORTS_64BIT_KERNEL
1495         select CPU_SUPPORTS_HIGHMEM
1496         select CPU_SUPPORTS_MSA
1497         select GENERIC_CSUM
1498         select MIPS_O32_FP64_SUPPORT if MIPS32_O32
1499         select HAVE_KVM
1500         help
1501           Choose this option to build a kernel for release 6 or later of the
1502           MIPS64 architecture.  New MIPS processors, starting with the Warrior
1503           family, are based on a MIPS64r6 processor. If you own an older
1504           processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1505 
1506 config CPU_R3000
1507         bool "R3000"
1508         depends on SYS_HAS_CPU_R3000
1509         select CPU_HAS_WB
1510         select CPU_SUPPORTS_32BIT_KERNEL
1511         select CPU_SUPPORTS_HIGHMEM
1512         help
1513           Please make sure to pick the right CPU type. Linux/MIPS is not
1514           designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1515           *not* work on R4000 machines and vice versa.  However, since most
1516           of the supported machines have an R4000 (or similar) CPU, R4x00
1517           might be a safe bet.  If the resulting kernel does not work,
1518           try to recompile with R3000.
1519 
1520 config CPU_TX39XX
1521         bool "R39XX"
1522         depends on SYS_HAS_CPU_TX39XX
1523         select CPU_SUPPORTS_32BIT_KERNEL
1524 
1525 config CPU_VR41XX
1526         bool "R41xx"
1527         depends on SYS_HAS_CPU_VR41XX
1528         select CPU_SUPPORTS_32BIT_KERNEL
1529         select CPU_SUPPORTS_64BIT_KERNEL
1530         help
1531           The options selects support for the NEC VR4100 series of processors.
1532           Only choose this option if you have one of these processors as a
1533           kernel built with this option will not run on any other type of
1534           processor or vice versa.
1535 
1536 config CPU_R4300
1537         bool "R4300"
1538         depends on SYS_HAS_CPU_R4300
1539         select CPU_SUPPORTS_32BIT_KERNEL
1540         select CPU_SUPPORTS_64BIT_KERNEL
1541         help
1542           MIPS Technologies R4300-series processors.
1543 
1544 config CPU_R4X00
1545         bool "R4x00"
1546         depends on SYS_HAS_CPU_R4X00
1547         select CPU_SUPPORTS_32BIT_KERNEL
1548         select CPU_SUPPORTS_64BIT_KERNEL
1549         select CPU_SUPPORTS_HUGEPAGES
1550         help
1551           MIPS Technologies R4000-series processors other than 4300, including
1552           the R4000, R4400, R4600, and 4700.
1553 
1554 config CPU_TX49XX
1555         bool "R49XX"
1556         depends on SYS_HAS_CPU_TX49XX
1557         select CPU_HAS_PREFETCH
1558         select CPU_SUPPORTS_32BIT_KERNEL
1559         select CPU_SUPPORTS_64BIT_KERNEL
1560         select CPU_SUPPORTS_HUGEPAGES
1561 
1562 config CPU_R5000
1563         bool "R5000"
1564         depends on SYS_HAS_CPU_R5000
1565         select CPU_SUPPORTS_32BIT_KERNEL
1566         select CPU_SUPPORTS_64BIT_KERNEL
1567         select CPU_SUPPORTS_HUGEPAGES
1568         help
1569           MIPS Technologies R5000-series processors other than the Nevada.
1570 
1571 config CPU_R5432
1572         bool "R5432"
1573         depends on SYS_HAS_CPU_R5432
1574         select CPU_SUPPORTS_32BIT_KERNEL
1575         select CPU_SUPPORTS_64BIT_KERNEL
1576         select CPU_SUPPORTS_HUGEPAGES
1577 
1578 config CPU_R5500
1579         bool "R5500"
1580         depends on SYS_HAS_CPU_R5500
1581         select CPU_SUPPORTS_32BIT_KERNEL
1582         select CPU_SUPPORTS_64BIT_KERNEL
1583         select CPU_SUPPORTS_HUGEPAGES
1584         help
1585           NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1586           instruction set.
1587 
1588 config CPU_R6000
1589         bool "R6000"
1590         depends on SYS_HAS_CPU_R6000
1591         select CPU_SUPPORTS_32BIT_KERNEL
1592         help
1593           MIPS Technologies R6000 and R6000A series processors.  Note these
1594           processors are extremely rare and the support for them is incomplete.
1595 
1596 config CPU_NEVADA
1597         bool "RM52xx"
1598         depends on SYS_HAS_CPU_NEVADA
1599         select CPU_SUPPORTS_32BIT_KERNEL
1600         select CPU_SUPPORTS_64BIT_KERNEL
1601         select CPU_SUPPORTS_HUGEPAGES
1602         help
1603           QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1604 
1605 config CPU_R8000
1606         bool "R8000"
1607         depends on SYS_HAS_CPU_R8000
1608         select CPU_HAS_PREFETCH
1609         select CPU_SUPPORTS_64BIT_KERNEL
1610         help
1611           MIPS Technologies R8000 processors.  Note these processors are
1612           uncommon and the support for them is incomplete.
1613 
1614 config CPU_R10000
1615         bool "R10000"
1616         depends on SYS_HAS_CPU_R10000
1617         select CPU_HAS_PREFETCH
1618         select CPU_SUPPORTS_32BIT_KERNEL
1619         select CPU_SUPPORTS_64BIT_KERNEL
1620         select CPU_SUPPORTS_HIGHMEM
1621         select CPU_SUPPORTS_HUGEPAGES
1622         help
1623           MIPS Technologies R10000-series processors.
1624 
1625 config CPU_RM7000
1626         bool "RM7000"
1627         depends on SYS_HAS_CPU_RM7000
1628         select CPU_HAS_PREFETCH
1629         select CPU_SUPPORTS_32BIT_KERNEL
1630         select CPU_SUPPORTS_64BIT_KERNEL
1631         select CPU_SUPPORTS_HIGHMEM
1632         select CPU_SUPPORTS_HUGEPAGES
1633 
1634 config CPU_SB1
1635         bool "SB1"
1636         depends on SYS_HAS_CPU_SB1
1637         select CPU_SUPPORTS_32BIT_KERNEL
1638         select CPU_SUPPORTS_64BIT_KERNEL
1639         select CPU_SUPPORTS_HIGHMEM
1640         select CPU_SUPPORTS_HUGEPAGES
1641         select WEAK_ORDERING
1642 
1643 config CPU_CAVIUM_OCTEON
1644         bool "Cavium Octeon processor"
1645         depends on SYS_HAS_CPU_CAVIUM_OCTEON
1646         select CPU_HAS_PREFETCH
1647         select CPU_SUPPORTS_64BIT_KERNEL
1648         select WEAK_ORDERING
1649         select CPU_SUPPORTS_HIGHMEM
1650         select CPU_SUPPORTS_HUGEPAGES
1651         select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1652         select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1653         select MIPS_L1_CACHE_SHIFT_7
1654         help
1655           The Cavium Octeon processor is a highly integrated chip containing
1656           many ethernet hardware widgets for networking tasks. The processor
1657           can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1658           Full details can be found at http://www.caviumnetworks.com.
1659 
1660 config CPU_BMIPS
1661         bool "Broadcom BMIPS"
1662         depends on SYS_HAS_CPU_BMIPS
1663         select CPU_MIPS32
1664         select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1665         select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1666         select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1667         select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1668         select CPU_SUPPORTS_32BIT_KERNEL
1669         select DMA_NONCOHERENT
1670         select IRQ_MIPS_CPU
1671         select SWAP_IO_SPACE
1672         select WEAK_ORDERING
1673         select CPU_SUPPORTS_HIGHMEM
1674         select CPU_HAS_PREFETCH
1675         help
1676           Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1677 
1678 config CPU_XLR
1679         bool "Netlogic XLR SoC"
1680         depends on SYS_HAS_CPU_XLR
1681         select CPU_SUPPORTS_32BIT_KERNEL
1682         select CPU_SUPPORTS_64BIT_KERNEL
1683         select CPU_SUPPORTS_HIGHMEM
1684         select CPU_SUPPORTS_HUGEPAGES
1685         select WEAK_ORDERING
1686         select WEAK_REORDERING_BEYOND_LLSC
1687         help
1688           Netlogic Microsystems XLR/XLS processors.
1689 
1690 config CPU_XLP
1691         bool "Netlogic XLP SoC"
1692         depends on SYS_HAS_CPU_XLP
1693         select CPU_SUPPORTS_32BIT_KERNEL
1694         select CPU_SUPPORTS_64BIT_KERNEL
1695         select CPU_SUPPORTS_HIGHMEM
1696         select WEAK_ORDERING
1697         select WEAK_REORDERING_BEYOND_LLSC
1698         select CPU_HAS_PREFETCH
1699         select CPU_MIPSR2
1700         select CPU_SUPPORTS_HUGEPAGES
1701         select MIPS_ASID_BITS_VARIABLE
1702         help
1703           Netlogic Microsystems XLP processors.
1704 endchoice
1705 
1706 config CPU_MIPS32_3_5_FEATURES
1707         bool "MIPS32 Release 3.5 Features"
1708         depends on SYS_HAS_CPU_MIPS32_R3_5
1709         depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1710         help
1711           Choose this option to build a kernel for release 2 or later of the
1712           MIPS32 architecture including features from the 3.5 release such as
1713           support for Enhanced Virtual Addressing (EVA).
1714 
1715 config CPU_MIPS32_3_5_EVA
1716         bool "Enhanced Virtual Addressing (EVA)"
1717         depends on CPU_MIPS32_3_5_FEATURES
1718         select EVA
1719         default y
1720         help
1721           Choose this option if you want to enable the Enhanced Virtual
1722           Addressing (EVA) on your MIPS32 core (such as proAptiv).
1723           One of its primary benefits is an increase in the maximum size
1724           of lowmem (up to 3GB). If unsure, say 'N' here.
1725 
1726 config CPU_MIPS32_R5_FEATURES
1727         bool "MIPS32 Release 5 Features"
1728         depends on SYS_HAS_CPU_MIPS32_R5
1729         depends on CPU_MIPS32_R2
1730         help
1731           Choose this option to build a kernel for release 2 or later of the
1732           MIPS32 architecture including features from release 5 such as
1733           support for Extended Physical Addressing (XPA).
1734 
1735 config CPU_MIPS32_R5_XPA
1736         bool "Extended Physical Addressing (XPA)"
1737         depends on CPU_MIPS32_R5_FEATURES
1738         depends on !EVA
1739         depends on !PAGE_SIZE_4KB
1740         depends on SYS_SUPPORTS_HIGHMEM
1741         select XPA
1742         select HIGHMEM
1743         select ARCH_PHYS_ADDR_T_64BIT
1744         default n
1745         help
1746           Choose this option if you want to enable the Extended Physical
1747           Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1748           benefit is to increase physical addressing equal to or greater
1749           than 40 bits. Note that this has the side effect of turning on
1750           64-bit addressing which in turn makes the PTEs 64-bit in size.
1751           If unsure, say 'N' here.
1752 
1753 if CPU_LOONGSON2F
1754 config CPU_NOP_WORKAROUNDS
1755         bool
1756 
1757 config CPU_JUMP_WORKAROUNDS
1758         bool
1759 
1760 config CPU_LOONGSON2F_WORKAROUNDS
1761         bool "Loongson 2F Workarounds"
1762         default y
1763         select CPU_NOP_WORKAROUNDS
1764         select CPU_JUMP_WORKAROUNDS
1765         help
1766           Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1767           require workarounds.  Without workarounds the system may hang
1768           unexpectedly.  For more information please refer to the gas
1769           -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1770 
1771           Loongson 2F03 and later have fixed these issues and no workarounds
1772           are needed.  The workarounds have no significant side effect on them
1773           but may decrease the performance of the system so this option should
1774           be disabled unless the kernel is intended to be run on 2F01 or 2F02
1775           systems.
1776 
1777           If unsure, please say Y.
1778 endif # CPU_LOONGSON2F
1779 
1780 config SYS_SUPPORTS_ZBOOT
1781         bool
1782         select HAVE_KERNEL_GZIP
1783         select HAVE_KERNEL_BZIP2
1784         select HAVE_KERNEL_LZ4
1785         select HAVE_KERNEL_LZMA
1786         select HAVE_KERNEL_LZO
1787         select HAVE_KERNEL_XZ
1788 
1789 config SYS_SUPPORTS_ZBOOT_UART16550
1790         bool
1791         select SYS_SUPPORTS_ZBOOT
1792 
1793 config SYS_SUPPORTS_ZBOOT_UART_PROM
1794         bool
1795         select SYS_SUPPORTS_ZBOOT
1796 
1797 config CPU_LOONGSON2
1798         bool
1799         select CPU_SUPPORTS_32BIT_KERNEL
1800         select CPU_SUPPORTS_64BIT_KERNEL
1801         select CPU_SUPPORTS_HIGHMEM
1802         select CPU_SUPPORTS_HUGEPAGES
1803 
1804 config CPU_LOONGSON1
1805         bool
1806         select CPU_MIPS32
1807         select CPU_MIPSR2
1808         select CPU_HAS_PREFETCH
1809         select CPU_SUPPORTS_32BIT_KERNEL
1810         select CPU_SUPPORTS_HIGHMEM
1811         select CPU_SUPPORTS_CPUFREQ
1812 
1813 config CPU_BMIPS32_3300
1814         select SMP_UP if SMP
1815         bool
1816 
1817 config CPU_BMIPS4350
1818         bool
1819         select SYS_SUPPORTS_SMP
1820         select SYS_SUPPORTS_HOTPLUG_CPU
1821 
1822 config CPU_BMIPS4380
1823         bool
1824         select MIPS_L1_CACHE_SHIFT_6
1825         select SYS_SUPPORTS_SMP
1826         select SYS_SUPPORTS_HOTPLUG_CPU
1827         select CPU_HAS_RIXI
1828 
1829 config CPU_BMIPS5000
1830         bool
1831         select MIPS_CPU_SCACHE
1832         select MIPS_L1_CACHE_SHIFT_7
1833         select SYS_SUPPORTS_SMP
1834         select SYS_SUPPORTS_HOTPLUG_CPU
1835         select CPU_HAS_RIXI
1836 
1837 config SYS_HAS_CPU_LOONGSON3
1838         bool
1839         select CPU_SUPPORTS_CPUFREQ
1840         select CPU_HAS_RIXI
1841 
1842 config SYS_HAS_CPU_LOONGSON2E
1843         bool
1844 
1845 config SYS_HAS_CPU_LOONGSON2F
1846         bool
1847         select CPU_SUPPORTS_CPUFREQ
1848         select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1849         select CPU_SUPPORTS_UNCACHED_ACCELERATED
1850 
1851 config SYS_HAS_CPU_LOONGSON1B
1852         bool
1853 
1854 config SYS_HAS_CPU_MIPS32_R1
1855         bool
1856 
1857 config SYS_HAS_CPU_MIPS32_R2
1858         bool
1859 
1860 config SYS_HAS_CPU_MIPS32_R3_5
1861         bool
1862 
1863 config SYS_HAS_CPU_MIPS32_R5
1864         bool
1865 
1866 config SYS_HAS_CPU_MIPS32_R6
1867         bool
1868 
1869 config SYS_HAS_CPU_MIPS64_R1
1870         bool
1871 
1872 config SYS_HAS_CPU_MIPS64_R2
1873         bool
1874 
1875 config SYS_HAS_CPU_MIPS64_R6
1876         bool
1877 
1878 config SYS_HAS_CPU_R3000
1879         bool
1880 
1881 config SYS_HAS_CPU_TX39XX
1882         bool
1883 
1884 config SYS_HAS_CPU_VR41XX
1885         bool
1886 
1887 config SYS_HAS_CPU_R4300
1888         bool
1889 
1890 config SYS_HAS_CPU_R4X00
1891         bool
1892 
1893 config SYS_HAS_CPU_TX49XX
1894         bool
1895 
1896 config SYS_HAS_CPU_R5000
1897         bool
1898 
1899 config SYS_HAS_CPU_R5432
1900         bool
1901 
1902 config SYS_HAS_CPU_R5500
1903         bool
1904 
1905 config SYS_HAS_CPU_R6000
1906         bool
1907 
1908 config SYS_HAS_CPU_NEVADA
1909         bool
1910 
1911 config SYS_HAS_CPU_R8000
1912         bool
1913 
1914 config SYS_HAS_CPU_R10000
1915         bool
1916 
1917 config SYS_HAS_CPU_RM7000
1918         bool
1919 
1920 config SYS_HAS_CPU_SB1
1921         bool
1922 
1923 config SYS_HAS_CPU_CAVIUM_OCTEON
1924         bool
1925 
1926 config SYS_HAS_CPU_BMIPS
1927         bool
1928 
1929 config SYS_HAS_CPU_BMIPS32_3300
1930         bool
1931         select SYS_HAS_CPU_BMIPS
1932 
1933 config SYS_HAS_CPU_BMIPS4350
1934         bool
1935         select SYS_HAS_CPU_BMIPS
1936 
1937 config SYS_HAS_CPU_BMIPS4380
1938         bool
1939         select SYS_HAS_CPU_BMIPS
1940 
1941 config SYS_HAS_CPU_BMIPS5000
1942         bool
1943         select SYS_HAS_CPU_BMIPS
1944 
1945 config SYS_HAS_CPU_XLR
1946         bool
1947 
1948 config SYS_HAS_CPU_XLP
1949         bool
1950 
1951 config MIPS_MALTA_PM
1952         depends on MIPS_MALTA
1953         depends on PCI
1954         bool
1955         default y
1956 
1957 #
1958 # CPU may reorder R->R, R->W, W->R, W->W
1959 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1960 #
1961 config WEAK_ORDERING
1962         bool
1963 
1964 #
1965 # CPU may reorder reads and writes beyond LL/SC
1966 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1967 #
1968 config WEAK_REORDERING_BEYOND_LLSC
1969         bool
1970 endmenu
1971 
1972 #
1973 # These two indicate any level of the MIPS32 and MIPS64 architecture
1974 #
1975 config CPU_MIPS32
1976         bool
1977         default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
1978 
1979 config CPU_MIPS64
1980         bool
1981         default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
1982 
1983 #
1984 # These two indicate the revision of the architecture, either Release 1 or Release 2
1985 #
1986 config CPU_MIPSR1
1987         bool
1988         default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1989 
1990 config CPU_MIPSR2
1991         bool
1992         default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1993         select CPU_HAS_RIXI
1994         select MIPS_SPRAM
1995 
1996 config CPU_MIPSR6
1997         bool
1998         default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
1999         select CPU_HAS_RIXI
2000         select HAVE_ARCH_BITREVERSE
2001         select MIPS_ASID_BITS_VARIABLE
2002         select MIPS_SPRAM
2003 
2004 config EVA
2005         bool
2006 
2007 config XPA
2008         bool
2009 
2010 config SYS_SUPPORTS_32BIT_KERNEL
2011         bool
2012 config SYS_SUPPORTS_64BIT_KERNEL
2013         bool
2014 config CPU_SUPPORTS_32BIT_KERNEL
2015         bool
2016 config CPU_SUPPORTS_64BIT_KERNEL
2017         bool
2018 config CPU_SUPPORTS_CPUFREQ
2019         bool
2020 config CPU_SUPPORTS_ADDRWINCFG
2021         bool
2022 config CPU_SUPPORTS_HUGEPAGES
2023         bool
2024 config CPU_SUPPORTS_UNCACHED_ACCELERATED
2025         bool
2026 config MIPS_PGD_C0_CONTEXT
2027         bool
2028         default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
2029 
2030 #
2031 # Set to y for ptrace access to watch registers.
2032 #
2033 config HARDWARE_WATCHPOINTS
2034        bool
2035        default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2036 
2037 menu "Kernel type"
2038 
2039 choice
2040         prompt "Kernel code model"
2041         help
2042           You should only select this option if you have a workload that
2043           actually benefits from 64-bit processing or if your machine has
2044           large memory.  You will only be presented a single option in this
2045           menu if your system does not support both 32-bit and 64-bit kernels.
2046 
2047 config 32BIT
2048         bool "32-bit kernel"
2049         depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2050         select TRAD_SIGNALS
2051         help
2052           Select this option if you want to build a 32-bit kernel.
2053 
2054 config 64BIT
2055         bool "64-bit kernel"
2056         depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2057         help
2058           Select this option if you want to build a 64-bit kernel.
2059 
2060 endchoice
2061 
2062 config KVM_GUEST
2063         bool "KVM Guest Kernel"
2064         depends on BROKEN_ON_SMP
2065         help
2066           Select this option if building a guest kernel for KVM (Trap & Emulate)
2067           mode.
2068 
2069 config KVM_GUEST_TIMER_FREQ
2070         int "Count/Compare Timer Frequency (MHz)"
2071         depends on KVM_GUEST
2072         default 100
2073         help
2074           Set this to non-zero if building a guest kernel for KVM to skip RTC
2075           emulation when determining guest CPU Frequency. Instead, the guest's
2076           timer frequency is specified directly.
2077 
2078 config MIPS_VA_BITS_48
2079         bool "48 bits virtual memory"
2080         depends on 64BIT
2081         help
2082           Support a maximum at least 48 bits of application virtual memory.
2083           Default is 40 bits or less, depending on the CPU.
2084           This option result in a small memory overhead for page tables.
2085           This option is only supported with 16k and 64k page sizes.
2086           If unsure, say N.
2087 
2088 choice
2089         prompt "Kernel page size"
2090         default PAGE_SIZE_4KB
2091 
2092 config PAGE_SIZE_4KB
2093         bool "4kB"
2094         depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
2095         depends on !MIPS_VA_BITS_48
2096         help
2097          This option select the standard 4kB Linux page size.  On some
2098          R3000-family processors this is the only available page size.  Using
2099          4kB page size will minimize memory consumption and is therefore
2100          recommended for low memory systems.
2101 
2102 config PAGE_SIZE_8KB
2103         bool "8kB"
2104         depends on CPU_R8000 || CPU_CAVIUM_OCTEON
2105         depends on !MIPS_VA_BITS_48
2106         help
2107           Using 8kB page size will result in higher performance kernel at
2108           the price of higher memory consumption.  This option is available
2109           only on R8000 and cnMIPS processors.  Note that you will need a
2110           suitable Linux distribution to support this.
2111 
2112 config PAGE_SIZE_16KB
2113         bool "16kB"
2114         depends on !CPU_R3000 && !CPU_TX39XX
2115         help
2116           Using 16kB page size will result in higher performance kernel at
2117           the price of higher memory consumption.  This option is available on
2118           all non-R3000 family processors.  Note that you will need a suitable
2119           Linux distribution to support this.
2120 
2121 config PAGE_SIZE_32KB
2122         bool "32kB"
2123         depends on CPU_CAVIUM_OCTEON
2124         depends on !MIPS_VA_BITS_48
2125         help
2126           Using 32kB page size will result in higher performance kernel at
2127           the price of higher memory consumption.  This option is available
2128           only on cnMIPS cores.  Note that you will need a suitable Linux
2129           distribution to support this.
2130 
2131 config PAGE_SIZE_64KB
2132         bool "64kB"
2133         depends on !CPU_R3000 && !CPU_TX39XX && !CPU_R6000
2134         help
2135           Using 64kB page size will result in higher performance kernel at
2136           the price of higher memory consumption.  This option is available on
2137           all non-R3000 family processor.  Not that at the time of this
2138           writing this option is still high experimental.
2139 
2140 endchoice
2141 
2142 config FORCE_MAX_ZONEORDER
2143         int "Maximum zone order"
2144         range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2145         default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2146         range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2147         default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2148         range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2149         default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2150         range 11 64
2151         default "11"
2152         help
2153           The kernel memory allocator divides physically contiguous memory
2154           blocks into "zones", where each zone is a power of two number of
2155           pages.  This option selects the largest power of two that the kernel
2156           keeps in the memory allocator.  If you need to allocate very large
2157           blocks of physically contiguous memory, then you may need to
2158           increase this value.
2159 
2160           This config option is actually maximum order plus one. For example,
2161           a value of 11 means that the largest free memory block is 2^10 pages.
2162 
2163           The page size is not necessarily 4KB.  Keep this in mind
2164           when choosing a value for this option.
2165 
2166 config BOARD_SCACHE
2167         bool
2168 
2169 config IP22_CPU_SCACHE
2170         bool
2171         select BOARD_SCACHE
2172 
2173 #
2174 # Support for a MIPS32 / MIPS64 style S-caches
2175 #
2176 config MIPS_CPU_SCACHE
2177         bool
2178         select BOARD_SCACHE
2179 
2180 config R5000_CPU_SCACHE
2181         bool
2182         select BOARD_SCACHE
2183 
2184 config RM7000_CPU_SCACHE
2185         bool
2186         select BOARD_SCACHE
2187 
2188 config SIBYTE_DMA_PAGEOPS
2189         bool "Use DMA to clear/copy pages"
2190         depends on CPU_SB1
2191         help
2192           Instead of using the CPU to zero and copy pages, use a Data Mover
2193           channel.  These DMA channels are otherwise unused by the standard
2194           SiByte Linux port.  Seems to give a small performance benefit.
2195 
2196 config CPU_HAS_PREFETCH
2197         bool
2198 
2199 config CPU_GENERIC_DUMP_TLB
2200         bool
2201         default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
2202 
2203 config CPU_R4K_FPU
2204         bool
2205         default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2206 
2207 config CPU_R4K_CACHE_TLB
2208         bool
2209         default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2210 
2211 config MIPS_MT_SMP
2212         bool "MIPS MT SMP support (1 TC on each available VPE)"
2213         depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6
2214         select CPU_MIPSR2_IRQ_VI
2215         select CPU_MIPSR2_IRQ_EI
2216         select SYNC_R4K
2217         select MIPS_MT
2218         select SMP
2219         select SMP_UP
2220         select SYS_SUPPORTS_SMP
2221         select SYS_SUPPORTS_SCHED_SMT
2222         select MIPS_PERF_SHARED_TC_COUNTERS
2223         help
2224           This is a kernel model which is known as SMVP. This is supported
2225           on cores with the MT ASE and uses the available VPEs to implement
2226           virtual processors which supports SMP. This is equivalent to the
2227           Intel Hyperthreading feature. For further information go to
2228           <http://www.imgtec.com/mips/mips-multithreading.asp>.
2229 
2230 config MIPS_MT
2231         bool
2232 
2233 config SCHED_SMT
2234         bool "SMT (multithreading) scheduler support"
2235         depends on SYS_SUPPORTS_SCHED_SMT
2236         default n
2237         help
2238           SMT scheduler support improves the CPU scheduler's decision making
2239           when dealing with MIPS MT enabled cores at a cost of slightly
2240           increased overhead in some places. If unsure say N here.
2241 
2242 config SYS_SUPPORTS_SCHED_SMT
2243         bool
2244 
2245 config SYS_SUPPORTS_MULTITHREADING
2246         bool
2247 
2248 config MIPS_MT_FPAFF
2249         bool "Dynamic FPU affinity for FP-intensive threads"
2250         default y
2251         depends on MIPS_MT_SMP
2252 
2253 config MIPSR2_TO_R6_EMULATOR
2254         bool "MIPS R2-to-R6 emulator"
2255         depends on CPU_MIPSR6 && !SMP
2256         default y
2257         help
2258           Choose this option if you want to run non-R6 MIPS userland code.
2259           Even if you say 'Y' here, the emulator will still be disabled by
2260           default. You can enable it using the 'mipsr2emu' kernel option.
2261           The only reason this is a build-time option is to save ~14K from the
2262           final kernel image.
2263 comment "MIPS R2-to-R6 emulator is only available for UP kernels"
2264         depends on SMP && CPU_MIPSR6
2265 
2266 config MIPS_VPE_LOADER
2267         bool "VPE loader support."
2268         depends on SYS_SUPPORTS_MULTITHREADING && MODULES
2269         select CPU_MIPSR2_IRQ_VI
2270         select CPU_MIPSR2_IRQ_EI
2271         select MIPS_MT
2272         help
2273           Includes a loader for loading an elf relocatable object
2274           onto another VPE and running it.
2275 
2276 config MIPS_VPE_LOADER_CMP
2277         bool
2278         default "y"
2279         depends on MIPS_VPE_LOADER && MIPS_CMP
2280 
2281 config MIPS_VPE_LOADER_MT
2282         bool
2283         default "y"
2284         depends on MIPS_VPE_LOADER && !MIPS_CMP
2285 
2286 config MIPS_VPE_LOADER_TOM
2287         bool "Load VPE program into memory hidden from linux"
2288         depends on MIPS_VPE_LOADER
2289         default y
2290         help
2291           The loader can use memory that is present but has been hidden from
2292           Linux using the kernel command line option "mem=xxMB". It's up to
2293           you to ensure the amount you put in the option and the space your
2294           program requires is less or equal to the amount physically present.
2295 
2296 config MIPS_VPE_APSP_API
2297         bool "Enable support for AP/SP API (RTLX)"
2298         depends on MIPS_VPE_LOADER
2299         help
2300 
2301 config MIPS_VPE_APSP_API_CMP
2302         bool
2303         default "y"
2304         depends on MIPS_VPE_APSP_API && MIPS_CMP
2305 
2306 config MIPS_VPE_APSP_API_MT
2307         bool
2308         default "y"
2309         depends on MIPS_VPE_APSP_API && !MIPS_CMP
2310 
2311 config MIPS_CMP
2312         bool "MIPS CMP framework support (DEPRECATED)"
2313         depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2314         select SMP
2315         select SYNC_R4K
2316         select SYS_SUPPORTS_SMP
2317         select WEAK_ORDERING
2318         default n
2319         help
2320           Select this if you are using a bootloader which implements the "CMP
2321           framework" protocol (ie. YAMON) and want your kernel to make use of
2322           its ability to start secondary CPUs.
2323 
2324           Unless you have a specific need, you should use CONFIG_MIPS_CPS
2325           instead of this.
2326 
2327 config MIPS_CPS
2328         bool "MIPS Coherent Processing System support"
2329         depends on SYS_SUPPORTS_MIPS_CPS
2330         select MIPS_CM
2331         select MIPS_CPC
2332         select MIPS_CPS_PM if HOTPLUG_CPU
2333         select SMP
2334         select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2335         select SYS_SUPPORTS_HOTPLUG_CPU
2336         select SYS_SUPPORTS_SMP
2337         select WEAK_ORDERING
2338         help
2339           Select this if you wish to run an SMP kernel across multiple cores
2340           within a MIPS Coherent Processing System. When this option is
2341           enabled the kernel will probe for other cores and boot them with
2342           no external assistance. It is safe to enable this when hardware
2343           support is unavailable.
2344 
2345 config MIPS_CPS_PM
2346         depends on MIPS_CPS
2347         select MIPS_CPC
2348         bool
2349 
2350 config MIPS_CM
2351         bool
2352 
2353 config MIPS_CPC
2354         bool
2355 
2356 config SB1_PASS_2_WORKAROUNDS
2357         bool
2358         depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2359         default y
2360 
2361 config SB1_PASS_2_1_WORKAROUNDS
2362         bool
2363         depends on CPU_SB1 && CPU_SB1_PASS_2
2364         default y
2365 
2366 
2367 config ARCH_PHYS_ADDR_T_64BIT
2368        bool
2369 
2370 choice
2371         prompt "SmartMIPS or microMIPS ASE support"
2372 
2373 config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2374         bool "None"
2375         help
2376           Select this if you want neither microMIPS nor SmartMIPS support
2377 
2378 config CPU_HAS_SMARTMIPS
2379         depends on SYS_SUPPORTS_SMARTMIPS
2380         bool "SmartMIPS"
2381         help
2382           SmartMIPS is a extension of the MIPS32 architecture aimed at
2383           increased security at both hardware and software level for
2384           smartcards.  Enabling this option will allow proper use of the
2385           SmartMIPS instructions by Linux applications.  However a kernel with
2386           this option will not work on a MIPS core without SmartMIPS core.  If
2387           you don't know you probably don't have SmartMIPS and should say N
2388           here.
2389 
2390 config CPU_MICROMIPS
2391         depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2392         bool "microMIPS"
2393         help
2394           When this option is enabled the kernel will be built using the
2395           microMIPS ISA
2396 
2397 endchoice
2398 
2399 config CPU_HAS_MSA
2400         bool "Support for the MIPS SIMD Architecture"
2401         depends on CPU_SUPPORTS_MSA
2402         depends on 64BIT || MIPS_O32_FP64_SUPPORT
2403         help
2404           MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2405           and a set of SIMD instructions to operate on them. When this option
2406           is enabled the kernel will support allocating & switching MSA
2407           vector register contexts. If you know that your kernel will only be
2408           running on CPUs which do not support MSA or that your userland will
2409           not be making use of it then you may wish to say N here to reduce
2410           the size & complexity of your kernel.
2411 
2412           If unsure, say Y.
2413 
2414 config CPU_HAS_WB
2415         bool
2416 
2417 config XKS01
2418         bool
2419 
2420 config CPU_HAS_RIXI
2421         bool
2422 
2423 #
2424 # Vectored interrupt mode is an R2 feature
2425 #
2426 config CPU_MIPSR2_IRQ_VI
2427         bool
2428 
2429 #
2430 # Extended interrupt mode is an R2 feature
2431 #
2432 config CPU_MIPSR2_IRQ_EI
2433         bool
2434 
2435 config CPU_HAS_SYNC
2436         bool
2437         depends on !CPU_R3000
2438         default y
2439 
2440 #
2441 # CPU non-features
2442 #
2443 config CPU_DADDI_WORKAROUNDS
2444         bool
2445 
2446 config CPU_R4000_WORKAROUNDS
2447         bool
2448         select CPU_R4400_WORKAROUNDS
2449 
2450 config CPU_R4400_WORKAROUNDS
2451         bool
2452 
2453 config MIPS_ASID_SHIFT
2454         int
2455         default 6 if CPU_R3000 || CPU_TX39XX
2456         default 4 if CPU_R8000
2457         default 0
2458 
2459 config MIPS_ASID_BITS
2460         int
2461         default 0 if MIPS_ASID_BITS_VARIABLE
2462         default 6 if CPU_R3000 || CPU_TX39XX
2463         default 8
2464 
2465 config MIPS_ASID_BITS_VARIABLE
2466         bool
2467 
2468 #
2469 # - Highmem only makes sense for the 32-bit kernel.
2470 # - The current highmem code will only work properly on physically indexed
2471 #   caches such as R3000, SB1, R7000 or those that look like they're virtually
2472 #   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
2473 #   moment we protect the user and offer the highmem option only on machines
2474 #   where it's known to be safe.  This will not offer highmem on a few systems
2475 #   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2476 #   indexed CPUs but we're playing safe.
2477 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2478 #   know they might have memory configurations that could make use of highmem
2479 #   support.
2480 #
2481 config HIGHMEM
2482         bool "High Memory Support"
2483         depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2484 
2485 config CPU_SUPPORTS_HIGHMEM
2486         bool
2487 
2488 config SYS_SUPPORTS_HIGHMEM
2489         bool
2490 
2491 config SYS_SUPPORTS_SMARTMIPS
2492         bool
2493 
2494 config SYS_SUPPORTS_MICROMIPS
2495         bool
2496 
2497 config SYS_SUPPORTS_MIPS16
2498         bool
2499         help
2500           This option must be set if a kernel might be executed on a MIPS16-
2501           enabled CPU even if MIPS16 is not actually being used.  In other
2502           words, it makes the kernel MIPS16-tolerant.
2503 
2504 config CPU_SUPPORTS_MSA
2505         bool
2506 
2507 config ARCH_FLATMEM_ENABLE
2508         def_bool y
2509         depends on !NUMA && !CPU_LOONGSON2
2510 
2511 config ARCH_DISCONTIGMEM_ENABLE
2512         bool
2513         default y if SGI_IP27
2514         help
2515           Say Y to support efficient handling of discontiguous physical memory,
2516           for architectures which are either NUMA (Non-Uniform Memory Access)
2517           or have huge holes in the physical address space for other reasons.
2518           See <file:Documentation/vm/numa> for more.
2519 
2520 config ARCH_SPARSEMEM_ENABLE
2521         bool
2522         select SPARSEMEM_STATIC
2523 
2524 config NUMA
2525         bool "NUMA Support"
2526         depends on SYS_SUPPORTS_NUMA
2527         help
2528           Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2529           Access).  This option improves performance on systems with more
2530           than two nodes; on two node systems it is generally better to
2531           leave it disabled; on single node systems disable this option
2532           disabled.
2533 
2534 config SYS_SUPPORTS_NUMA
2535         bool
2536 
2537 config RELOCATABLE
2538         bool "Relocatable kernel"
2539         depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6)
2540         help
2541           This builds a kernel image that retains relocation information
2542           so it can be loaded someplace besides the default 1MB.
2543           The relocations make the kernel binary about 15% larger,
2544           but are discarded at runtime
2545 
2546 config RELOCATION_TABLE_SIZE
2547         hex "Relocation table size"
2548         depends on RELOCATABLE
2549         range 0x0 0x01000000
2550         default "0x00100000"
2551         ---help---
2552           A table of relocation data will be appended to the kernel binary
2553           and parsed at boot to fix up the relocated kernel.
2554 
2555           This option allows the amount of space reserved for the table to be
2556           adjusted, although the default of 1Mb should be ok in most cases.
2557 
2558           The build will fail and a valid size suggested if this is too small.
2559 
2560           If unsure, leave at the default value.
2561 
2562 config RANDOMIZE_BASE
2563         bool "Randomize the address of the kernel image"
2564         depends on RELOCATABLE
2565         ---help---
2566            Randomizes the physical and virtual address at which the
2567            kernel image is loaded, as a security feature that
2568            deters exploit attempts relying on knowledge of the location
2569            of kernel internals.
2570 
2571            Entropy is generated using any coprocessor 0 registers available.
2572 
2573            The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2574 
2575            If unsure, say N.
2576 
2577 config RANDOMIZE_BASE_MAX_OFFSET
2578         hex "Maximum kASLR offset" if EXPERT
2579         depends on RANDOMIZE_BASE
2580         range 0x0 0x40000000 if EVA || 64BIT
2581         range 0x0 0x08000000
2582         default "0x01000000"
2583         ---help---
2584           When kASLR is active, this provides the maximum offset that will
2585           be applied to the kernel image. It should be set according to the
2586           amount of physical RAM available in the target system minus
2587           PHYSICAL_START and must be a power of 2.
2588 
2589           This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2590           EVA or 64-bit. The default is 16Mb.
2591 
2592 config NODES_SHIFT
2593         int
2594         default "6"
2595         depends on NEED_MULTIPLE_NODES
2596 
2597 config HW_PERF_EVENTS
2598         bool "Enable hardware performance counter support for perf events"
2599         depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2600         default y
2601         help
2602           Enable hardware performance counter support for perf events. If
2603           disabled, perf events will use software events only.
2604 
2605 source "mm/Kconfig"
2606 
2607 config SMP
2608         bool "Multi-Processing support"
2609         depends on SYS_SUPPORTS_SMP
2610         help
2611           This enables support for systems with more than one CPU. If you have
2612           a system with only one CPU, say N. If you have a system with more
2613           than one CPU, say Y.
2614 
2615           If you say N here, the kernel will run on uni- and multiprocessor
2616           machines, but will use only one CPU of a multiprocessor machine. If
2617           you say Y here, the kernel will run on many, but not all,
2618           uniprocessor machines. On a uniprocessor machine, the kernel
2619           will run faster if you say N here.
2620 
2621           People using multiprocessor machines who say Y here should also say
2622           Y to "Enhanced Real Time Clock Support", below.
2623 
2624           See also the SMP-HOWTO available at
2625           <http://www.tldp.org/docs.html#howto>.
2626 
2627           If you don't know what to do here, say N.
2628 
2629 config HOTPLUG_CPU
2630         bool "Support for hot-pluggable CPUs"
2631         depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2632         help
2633           Say Y here to allow turning CPUs off and on. CPUs can be
2634           controlled through /sys/devices/system/cpu.
2635           (Note: power management support will enable this option
2636             automatically on SMP systems. )
2637           Say N if you want to disable CPU hotplug.
2638 
2639 config SMP_UP
2640         bool
2641 
2642 config SYS_SUPPORTS_MIPS_CMP
2643         bool
2644 
2645 config SYS_SUPPORTS_MIPS_CPS
2646         bool
2647 
2648 config SYS_SUPPORTS_SMP
2649         bool
2650 
2651 config NR_CPUS_DEFAULT_4
2652         bool
2653 
2654 config NR_CPUS_DEFAULT_8
2655         bool
2656 
2657 config NR_CPUS_DEFAULT_16
2658         bool
2659 
2660 config NR_CPUS_DEFAULT_32
2661         bool
2662 
2663 config NR_CPUS_DEFAULT_64
2664         bool
2665 
2666 config NR_CPUS
2667         int "Maximum number of CPUs (2-256)"
2668         range 2 256
2669         depends on SMP
2670         default "4" if NR_CPUS_DEFAULT_4
2671         default "8" if NR_CPUS_DEFAULT_8
2672         default "16" if NR_CPUS_DEFAULT_16
2673         default "32" if NR_CPUS_DEFAULT_32
2674         default "64" if NR_CPUS_DEFAULT_64
2675         help
2676           This allows you to specify the maximum number of CPUs which this
2677           kernel will support.  The maximum supported value is 32 for 32-bit
2678           kernel and 64 for 64-bit kernels; the minimum value which makes
2679           sense is 1 for Qemu (useful only for kernel debugging purposes)
2680           and 2 for all others.
2681 
2682           This is purely to save memory - each supported CPU adds
2683           approximately eight kilobytes to the kernel image.  For best
2684           performance should round up your number of processors to the next
2685           power of two.
2686 
2687 config MIPS_PERF_SHARED_TC_COUNTERS
2688         bool
2689 
2690 #
2691 # Timer Interrupt Frequency Configuration
2692 #
2693 
2694 choice
2695         prompt "Timer frequency"
2696         default HZ_250
2697         help
2698          Allows the configuration of the timer frequency.
2699 
2700         config HZ_24
2701                 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2702 
2703         config HZ_48
2704                 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2705 
2706         config HZ_100
2707                 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2708 
2709         config HZ_128
2710                 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2711 
2712         config HZ_250
2713                 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2714 
2715         config HZ_256
2716                 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2717 
2718         config HZ_1000
2719                 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2720 
2721         config HZ_1024
2722                 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2723 
2724 endchoice
2725 
2726 config SYS_SUPPORTS_24HZ
2727         bool
2728 
2729 config SYS_SUPPORTS_48HZ
2730         bool
2731 
2732 config SYS_SUPPORTS_100HZ
2733         bool
2734 
2735 config SYS_SUPPORTS_128HZ
2736         bool
2737 
2738 config SYS_SUPPORTS_250HZ
2739         bool
2740 
2741 config SYS_SUPPORTS_256HZ
2742         bool
2743 
2744 config SYS_SUPPORTS_1000HZ
2745         bool
2746 
2747 config SYS_SUPPORTS_1024HZ
2748         bool
2749 
2750 config SYS_SUPPORTS_ARBIT_HZ
2751         bool
2752         default y if !SYS_SUPPORTS_24HZ && \
2753                      !SYS_SUPPORTS_48HZ && \
2754                      !SYS_SUPPORTS_100HZ && \
2755                      !SYS_SUPPORTS_128HZ && \
2756                      !SYS_SUPPORTS_250HZ && \
2757                      !SYS_SUPPORTS_256HZ && \
2758                      !SYS_SUPPORTS_1000HZ && \
2759                      !SYS_SUPPORTS_1024HZ
2760 
2761 config HZ
2762         int
2763         default 24 if HZ_24
2764         default 48 if HZ_48
2765         default 100 if HZ_100
2766         default 128 if HZ_128
2767         default 250 if HZ_250
2768         default 256 if HZ_256
2769         default 1000 if HZ_1000
2770         default 1024 if HZ_1024
2771 
2772 config SCHED_HRTICK
2773         def_bool HIGH_RES_TIMERS
2774 
2775 source "kernel/Kconfig.preempt"
2776 
2777 config KEXEC
2778         bool "Kexec system call"
2779         select KEXEC_CORE
2780         help
2781           kexec is a system call that implements the ability to shutdown your
2782           current kernel, and to start another kernel.  It is like a reboot
2783           but it is independent of the system firmware.   And like a reboot
2784           you can start any kernel with it, not just Linux.
2785 
2786           The name comes from the similarity to the exec system call.
2787 
2788           It is an ongoing process to be certain the hardware in a machine
2789           is properly shutdown, so do not be surprised if this code does not
2790           initially work for you.  As of this writing the exact hardware
2791           interface is strongly in flux, so no good recommendation can be
2792           made.
2793 
2794 config CRASH_DUMP
2795           bool "Kernel crash dumps"
2796           help
2797           Generate crash dump after being started by kexec.
2798           This should be normally only set in special crash dump kernels
2799           which are loaded in the main kernel with kexec-tools into
2800           a specially reserved region and then later executed after
2801           a crash by kdump/kexec. The crash dump kernel must be compiled
2802           to a memory address not used by the main kernel or firmware using
2803           PHYSICAL_START.
2804 
2805 config PHYSICAL_START
2806           hex "Physical address where the kernel is loaded"
2807           default "0xffffffff84000000" if 64BIT
2808           default "0x84000000" if 32BIT
2809           depends on CRASH_DUMP
2810           help
2811           This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2812           If you plan to use kernel for capturing the crash dump change
2813           this value to start of the reserved region (the "X" value as
2814           specified in the "crashkernel=YM@XM" command line boot parameter
2815           passed to the panic-ed kernel).
2816 
2817 config SECCOMP
2818         bool "Enable seccomp to safely compute untrusted bytecode"
2819         depends on PROC_FS
2820         default y
2821         help
2822           This kernel feature is useful for number crunching applications
2823           that may need to compute untrusted bytecode during their
2824           execution. By using pipes or other transports made available to
2825           the process as file descriptors supporting the read/write
2826           syscalls, it's possible to isolate those applications in
2827           their own address space using seccomp. Once seccomp is
2828           enabled via /proc/<pid>/seccomp, it cannot be disabled
2829           and the task is only allowed to execute a few safe syscalls
2830           defined by each seccomp mode.
2831 
2832           If unsure, say Y. Only embedded should say N here.
2833 
2834 config MIPS_O32_FP64_SUPPORT
2835         bool "Support for O32 binaries using 64-bit FP"
2836         depends on 32BIT || MIPS32_O32
2837         help
2838           When this is enabled, the kernel will support use of 64-bit floating
2839           point registers with binaries using the O32 ABI along with the
2840           EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2841           32-bit MIPS systems this support is at the cost of increasing the
2842           size and complexity of the compiled FPU emulator. Thus if you are
2843           running a MIPS32 system and know that none of your userland binaries
2844           will require 64-bit floating point, you may wish to reduce the size
2845           of your kernel & potentially improve FP emulation performance by
2846           saying N here.
2847 
2848           Although binutils currently supports use of this flag the details
2849           concerning its effect upon the O32 ABI in userland are still being
2850           worked on. In order to avoid userland becoming dependant upon current
2851           behaviour before the details have been finalised, this option should
2852           be considered experimental and only enabled by those working upon
2853           said details.
2854 
2855           If unsure, say N.
2856 
2857 config USE_OF
2858         bool
2859         select OF
2860         select OF_EARLY_FLATTREE
2861         select IRQ_DOMAIN
2862 
2863 config BUILTIN_DTB
2864         bool
2865 
2866 choice
2867         prompt "Kernel appended dtb support" if USE_OF
2868         default MIPS_NO_APPENDED_DTB
2869 
2870         config MIPS_NO_APPENDED_DTB
2871                 bool "None"
2872                 help
2873                   Do not enable appended dtb support.
2874 
2875         config MIPS_ELF_APPENDED_DTB
2876                 bool "vmlinux"
2877                 help
2878                   With this option, the boot code will look for a device tree binary
2879                   DTB) included in the vmlinux ELF section .appended_dtb. By default
2880                   it is empty and the DTB can be appended using binutils command
2881                   objcopy:
2882 
2883                     objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
2884 
2885                   This is meant as a backward compatiblity convenience for those
2886                   systems with a bootloader that can't be upgraded to accommodate
2887                   the documented boot protocol using a device tree.
2888 
2889         config MIPS_RAW_APPENDED_DTB
2890                 bool "vmlinux.bin or vmlinuz.bin"
2891                 help
2892                   With this option, the boot code will look for a device tree binary
2893                   DTB) appended to raw vmlinux.bin or vmlinuz.bin.
2894                   (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
2895 
2896                   This is meant as a backward compatibility convenience for those
2897                   systems with a bootloader that can't be upgraded to accommodate
2898                   the documented boot protocol using a device tree.
2899 
2900                   Beware that there is very little in terms of protection against
2901                   this option being confused by leftover garbage in memory that might
2902                   look like a DTB header after a reboot if no actual DTB is appended
2903                   to vmlinux.bin.  Do not leave this option active in a production kernel
2904                   if you don't intend to always append a DTB.
2905 endchoice
2906 
2907 choice
2908         prompt "Kernel command line type" if !CMDLINE_OVERRIDE
2909         default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
2910                                          !MIPS_MALTA && !MIPS_SEAD3 && \
2911                                          !CAVIUM_OCTEON_SOC
2912         default MIPS_CMDLINE_FROM_BOOTLOADER
2913 
2914         config MIPS_CMDLINE_FROM_DTB
2915                 depends on USE_OF
2916                 bool "Dtb kernel arguments if available"
2917 
2918         config MIPS_CMDLINE_DTB_EXTEND
2919                 depends on USE_OF
2920                 bool "Extend dtb kernel arguments with bootloader arguments"
2921 
2922         config MIPS_CMDLINE_FROM_BOOTLOADER
2923                 bool "Bootloader kernel arguments if available"
2924 
2925         config MIPS_CMDLINE_BUILTIN_EXTEND
2926                 depends on CMDLINE_BOOL
2927                 bool "Extend builtin kernel arguments with bootloader arguments"
2928 endchoice
2929 
2930 endmenu
2931 
2932 config LOCKDEP_SUPPORT
2933         bool
2934         default y
2935 
2936 config STACKTRACE_SUPPORT
2937         bool
2938         default y
2939 
2940 config HAVE_LATENCYTOP_SUPPORT
2941         bool
2942         default y
2943 
2944 config PGTABLE_LEVELS
2945         int
2946         default 3 if 64BIT && !PAGE_SIZE_64KB
2947         default 2
2948 
2949 source "init/Kconfig"
2950 
2951 source "kernel/Kconfig.freezer"
2952 
2953 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2954 
2955 config HW_HAS_EISA
2956         bool
2957 config HW_HAS_PCI
2958         bool
2959 
2960 config PCI
2961         bool "Support for PCI controller"
2962         depends on HW_HAS_PCI
2963         select PCI_DOMAINS
2964         select NO_GENERIC_PCI_IOPORT_MAP
2965         help
2966           Find out whether you have a PCI motherboard. PCI is the name of a
2967           bus system, i.e. the way the CPU talks to the other stuff inside
2968           your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2969           say Y, otherwise N.
2970 
2971 config HT_PCI
2972         bool "Support for HT-linked PCI"
2973         default y
2974         depends on CPU_LOONGSON3
2975         select PCI
2976         select PCI_DOMAINS
2977         help
2978           Loongson family machines use Hyper-Transport bus for inter-core
2979           connection and device connection. The PCI bus is a subordinate
2980           linked at HT. Choose Y for Loongson-3 based machines.
2981 
2982 config PCI_DOMAINS
2983         bool
2984 
2985 source "drivers/pci/Kconfig"
2986 
2987 #
2988 # ISA support is now enabled via select.  Too many systems still have the one
2989 # or other ISA chip on the board that users don't know about so don't expect
2990 # users to choose the right thing ...
2991 #
2992 config ISA
2993         bool
2994 
2995 config EISA
2996         bool "EISA support"
2997         depends on HW_HAS_EISA
2998         select ISA
2999         select GENERIC_ISA_DMA
3000         ---help---
3001           The Extended Industry Standard Architecture (EISA) bus was
3002           developed as an open alternative to the IBM MicroChannel bus.
3003 
3004           The EISA bus provided some of the features of the IBM MicroChannel
3005           bus while maintaining backward compatibility with cards made for
3006           the older ISA bus.  The EISA bus saw limited use between 1988 and
3007           1995 when it was made obsolete by the PCI bus.
3008 
3009           Say Y here if you are building a kernel for an EISA-based machine.
3010 
3011           Otherwise, say N.
3012 
3013 source "drivers/eisa/Kconfig"
3014 
3015 config TC
3016         bool "TURBOchannel support"
3017         depends on MACH_DECSTATION
3018         help
3019           TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3020           processors.  TURBOchannel programming specifications are available
3021           at:
3022           <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3023           and:
3024           <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3025           Linux driver support status is documented at:
3026           <http://www.linux-mips.org/wiki/DECstation>
3027 
3028 config MMU
3029         bool
3030         default y
3031 
3032 config I8253
3033         bool
3034         select CLKSRC_I8253
3035         select CLKEVT_I8253
3036         select MIPS_EXTERNAL_TIMER
3037 
3038 config ZONE_DMA
3039         bool
3040 
3041 config ZONE_DMA32
3042         bool
3043 
3044 source "drivers/pcmcia/Kconfig"
3045 
3046 config RAPIDIO
3047         tristate "RapidIO support"
3048         depends on PCI
3049         default n
3050         help
3051           If you say Y here, the kernel will include drivers and
3052           infrastructure code to support RapidIO interconnect devices.
3053 
3054 source "drivers/rapidio/Kconfig"
3055 
3056 endmenu
3057 
3058 menu "Executable file formats"
3059 
3060 source "fs/Kconfig.binfmt"
3061 
3062 config TRAD_SIGNALS
3063         bool
3064 
3065 config MIPS32_COMPAT
3066         bool
3067 
3068 config COMPAT
3069         bool
3070 
3071 config SYSVIPC_COMPAT
3072         bool
3073 
3074 config MIPS32_O32
3075         bool "Kernel support for o32 binaries"
3076         depends on 64BIT
3077         select ARCH_WANT_OLD_COMPAT_IPC
3078         select COMPAT
3079         select MIPS32_COMPAT
3080         select SYSVIPC_COMPAT if SYSVIPC
3081         help
3082           Select this option if you want to run o32 binaries.  These are pure
3083           32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
3084           existing binaries are in this format.
3085 
3086           If unsure, say Y.
3087 
3088 config MIPS32_N32
3089         bool "Kernel support for n32 binaries"
3090         depends on 64BIT
3091         select COMPAT
3092         select MIPS32_COMPAT
3093         select SYSVIPC_COMPAT if SYSVIPC
3094         help
3095           Select this option if you want to run n32 binaries.  These are
3096           64-bit binaries using 32-bit quantities for addressing and certain
3097           data that would normally be 64-bit.  They are used in special
3098           cases.
3099 
3100           If unsure, say N.
3101 
3102 config BINFMT_ELF32
3103         bool
3104         default y if MIPS32_O32 || MIPS32_N32
3105         select ELFCORE
3106 
3107 endmenu
3108 
3109 menu "Power management options"
3110 
3111 config ARCH_HIBERNATION_POSSIBLE
3112         def_bool y
3113         depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3114 
3115 config ARCH_SUSPEND_POSSIBLE
3116         def_bool y
3117         depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3118 
3119 source "kernel/power/Kconfig"
3120 
3121 endmenu
3122 
3123 config MIPS_EXTERNAL_TIMER
3124         bool
3125 
3126 menu "CPU Power Management"
3127 
3128 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3129 source "drivers/cpufreq/Kconfig"
3130 endif
3131 
3132 source "drivers/cpuidle/Kconfig"
3133 
3134 endmenu
3135 
3136 source "net/Kconfig"
3137 
3138 source "drivers/Kconfig"
3139 
3140 source "drivers/firmware/Kconfig"
3141 
3142 source "fs/Kconfig"
3143 
3144 source "arch/mips/Kconfig.debug"
3145 
3146 source "security/Kconfig"
3147 
3148 source "crypto/Kconfig"
3149 
3150 source "lib/Kconfig"
3151 
3152 source "arch/mips/kvm/Kconfig"

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