Root/arch/mips/Kconfig

Source at commit 7fc863389f8fabc8eb33dafa375b8984c0b829fd created 9 years 4 months ago.
By Maarten ter Huurne, MIPS: JZ4740: Add cpufreq support
1config MIPS
2    bool
3    default y
4    select HAVE_GENERIC_DMA_COHERENT
5    select HAVE_IDE
6    select HAVE_OPROFILE
7    select HAVE_IRQ_WORK
8    select HAVE_PERF_EVENTS
9    select PERF_USE_VMALLOC
10    select HAVE_ARCH_KGDB
11    select ARCH_HAVE_CUSTOM_GPIO_H
12    select HAVE_FUNCTION_TRACER
13    select HAVE_FUNCTION_TRACE_MCOUNT_TEST
14    select HAVE_DYNAMIC_FTRACE
15    select HAVE_FTRACE_MCOUNT_RECORD
16    select HAVE_C_RECORDMCOUNT
17    select HAVE_FUNCTION_GRAPH_TRACER
18    select HAVE_KPROBES
19    select HAVE_KRETPROBES
20    select ARCH_BINFMT_ELF_RANDOMIZE_PIE
21    select RTC_LIB if !MACH_LOONGSON
22    select GENERIC_ATOMIC64 if !64BIT
23    select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
24    select HAVE_DMA_ATTRS
25    select HAVE_DMA_API_DEBUG
26    select HAVE_GENERIC_HARDIRQS
27    select GENERIC_IRQ_PROBE
28    select GENERIC_IRQ_SHOW
29    select HAVE_ARCH_JUMP_LABEL
30    select ARCH_WANT_IPC_PARSE_VERSION
31    select IRQ_FORCED_THREADING
32    select HAVE_MEMBLOCK
33    select HAVE_MEMBLOCK_NODE_MAP
34    select ARCH_DISCARD_MEMBLOCK
35    select GENERIC_SMP_IDLE_THREAD
36    select BUILDTIME_EXTABLE_SORT
37    select GENERIC_CLOCKEVENTS
38    select GENERIC_CMOS_UPDATE
39
40menu "Machine selection"
41
42config ZONE_DMA
43    bool
44
45choice
46    prompt "System type"
47    default SGI_IP22
48
49config MIPS_ALCHEMY
50    bool "Alchemy processor based machines"
51    select 64BIT_PHYS_ADDR
52    select CEVT_R4K_LIB
53    select CSRC_R4K_LIB
54    select IRQ_CPU
55    select SYS_HAS_CPU_MIPS32_R1
56    select SYS_SUPPORTS_32BIT_KERNEL
57    select SYS_SUPPORTS_APM_EMULATION
58    select GENERIC_GPIO
59    select ARCH_WANT_OPTIONAL_GPIOLIB
60    select SYS_SUPPORTS_ZBOOT
61    select USB_ARCH_HAS_OHCI
62    select USB_ARCH_HAS_EHCI
63
64config AR7
65    bool "Texas Instruments AR7"
66    select BOOT_ELF32
67    select DMA_NONCOHERENT
68    select CEVT_R4K
69    select CSRC_R4K
70    select IRQ_CPU
71    select NO_EXCEPT_FILL
72    select SWAP_IO_SPACE
73    select SYS_HAS_CPU_MIPS32_R1
74    select SYS_HAS_EARLY_PRINTK
75    select SYS_SUPPORTS_32BIT_KERNEL
76    select SYS_SUPPORTS_LITTLE_ENDIAN
77    select SYS_SUPPORTS_ZBOOT_UART16550
78    select ARCH_REQUIRE_GPIOLIB
79    select VLYNQ
80    select HAVE_CLK
81    help
82      Support for the Texas Instruments AR7 System-on-a-Chip
83      family: TNETD7100, 7200 and 7300.
84
85config ATH79
86    bool "Atheros AR71XX/AR724X/AR913X based boards"
87    select ARCH_REQUIRE_GPIOLIB
88    select BOOT_RAW
89    select CEVT_R4K
90    select CSRC_R4K
91    select DMA_NONCOHERENT
92    select HAVE_CLK
93    select IRQ_CPU
94    select MIPS_MACHINE
95    select SYS_HAS_CPU_MIPS32_R2
96    select SYS_HAS_EARLY_PRINTK
97    select SYS_SUPPORTS_32BIT_KERNEL
98    select SYS_SUPPORTS_BIG_ENDIAN
99    help
100      Support for the Atheros AR71XX/AR724X/AR913X SoCs.
101
102config BCM47XX
103    bool "Broadcom BCM47XX based boards"
104    select CEVT_R4K
105    select CSRC_R4K
106    select DMA_NONCOHERENT
107    select HW_HAS_PCI
108    select IRQ_CPU
109    select SYS_SUPPORTS_32BIT_KERNEL
110    select SYS_SUPPORTS_LITTLE_ENDIAN
111    select GENERIC_GPIO
112    select SYS_HAS_EARLY_PRINTK
113    select CFE
114    help
115     Support for BCM47XX based boards
116
117config BCM63XX
118    bool "Broadcom BCM63XX based boards"
119    select CEVT_R4K
120    select CSRC_R4K
121    select DMA_NONCOHERENT
122    select IRQ_CPU
123    select SYS_HAS_CPU_MIPS32_R1
124    select SYS_SUPPORTS_32BIT_KERNEL
125    select SYS_SUPPORTS_BIG_ENDIAN
126    select SYS_HAS_EARLY_PRINTK
127    select SWAP_IO_SPACE
128    select ARCH_REQUIRE_GPIOLIB
129    select HAVE_CLK
130    help
131     Support for BCM63XX based boards
132
133config MIPS_COBALT
134    bool "Cobalt Server"
135    select CEVT_R4K
136    select CSRC_R4K
137    select CEVT_GT641XX
138    select DMA_NONCOHERENT
139    select HW_HAS_PCI
140    select I8253
141    select I8259
142    select IRQ_CPU
143    select IRQ_GT641XX
144    select PCI_GT64XXX_PCI0
145    select PCI
146    select SYS_HAS_CPU_NEVADA
147    select SYS_HAS_EARLY_PRINTK
148    select SYS_SUPPORTS_32BIT_KERNEL
149    select SYS_SUPPORTS_64BIT_KERNEL
150    select SYS_SUPPORTS_LITTLE_ENDIAN
151
152config MACH_DECSTATION
153    bool "DECstations"
154    select BOOT_ELF32
155    select CEVT_DS1287
156    select CEVT_R4K
157    select CSRC_IOASIC
158    select CSRC_R4K
159    select CPU_DADDI_WORKAROUNDS if 64BIT
160    select CPU_R4000_WORKAROUNDS if 64BIT
161    select CPU_R4400_WORKAROUNDS if 64BIT
162    select DMA_NONCOHERENT
163    select NO_IOPORT
164    select IRQ_CPU
165    select SYS_HAS_CPU_R3000
166    select SYS_HAS_CPU_R4X00
167    select SYS_SUPPORTS_32BIT_KERNEL
168    select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
169    select SYS_SUPPORTS_LITTLE_ENDIAN
170    select SYS_SUPPORTS_128HZ
171    select SYS_SUPPORTS_256HZ
172    select SYS_SUPPORTS_1024HZ
173    help
174      This enables support for DEC's MIPS based workstations. For details
175      see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
176      DECstation porting pages on <http://decstation.unix-ag.org/>.
177
178      If you have one of the following DECstation Models you definitely
179      want to choose R4xx0 for the CPU Type:
180
181        DECstation 5000/50
182        DECstation 5000/150
183        DECstation 5000/260
184        DECsystem 5900/260
185
186      otherwise choose R3000.
187
188config MACH_JAZZ
189    bool "Jazz family of machines"
190    select ARC
191    select ARC32
192    select ARCH_MAY_HAVE_PC_FDC
193    select CEVT_R4K
194    select CSRC_R4K
195    select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
196    select GENERIC_ISA_DMA
197    select HAVE_PCSPKR_PLATFORM
198    select IRQ_CPU
199    select I8253
200    select I8259
201    select ISA
202    select SYS_HAS_CPU_R4X00
203    select SYS_SUPPORTS_32BIT_KERNEL
204    select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
205    select SYS_SUPPORTS_100HZ
206    help
207     This a family of machines based on the MIPS R4030 chipset which was
208     used by several vendors to build RISC/os and Windows NT workstations.
209     Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
210     Olivetti M700-10 workstations.
211
212config MACH_JZ4740
213    bool "Ingenic JZ4740 based machines"
214    select SYS_HAS_CPU_MIPS32_R1
215    select SYS_SUPPORTS_32BIT_KERNEL
216    select SYS_SUPPORTS_LITTLE_ENDIAN
217    select SYS_SUPPORTS_ZBOOT_UART16550
218    select DMA_NONCOHERENT
219    select IRQ_CPU
220    select GENERIC_GPIO
221    select ARCH_REQUIRE_GPIOLIB
222    select SYS_HAS_EARLY_PRINTK
223    select HAVE_PWM
224    select HAVE_CLK
225    select GENERIC_IRQ_CHIP
226    select CPU_SUPPORTS_CPUFREQ
227
228config LANTIQ
229    bool "Lantiq based platforms"
230    select DMA_NONCOHERENT
231    select IRQ_CPU
232    select CEVT_R4K
233    select CSRC_R4K
234    select SYS_HAS_CPU_MIPS32_R1
235    select SYS_HAS_CPU_MIPS32_R2
236    select SYS_SUPPORTS_BIG_ENDIAN
237    select SYS_SUPPORTS_32BIT_KERNEL
238    select SYS_SUPPORTS_MULTITHREADING
239    select SYS_HAS_EARLY_PRINTK
240    select ARCH_REQUIRE_GPIOLIB
241    select SWAP_IO_SPACE
242    select BOOT_RAW
243    select HAVE_MACH_CLKDEV
244    select CLKDEV_LOOKUP
245    select USE_OF
246
247config LASAT
248    bool "LASAT Networks platforms"
249    select CEVT_R4K
250    select CSRC_R4K
251    select DMA_NONCOHERENT
252    select SYS_HAS_EARLY_PRINTK
253    select HW_HAS_PCI
254    select IRQ_CPU
255    select PCI_GT64XXX_PCI0
256    select MIPS_NILE4
257    select R5000_CPU_SCACHE
258    select SYS_HAS_CPU_R5000
259    select SYS_SUPPORTS_32BIT_KERNEL
260    select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
261    select SYS_SUPPORTS_LITTLE_ENDIAN
262
263config MACH_LOONGSON
264    bool "Loongson family of machines"
265    select SYS_SUPPORTS_ZBOOT
266    help
267      This enables the support of Loongson family of machines.
268
269      Loongson is a family of general-purpose MIPS-compatible CPUs.
270      developed at Institute of Computing Technology (ICT),
271      Chinese Academy of Sciences (CAS) in the People's Republic
272      of China. The chief architect is Professor Weiwu Hu.
273
274config MACH_LOONGSON1
275    bool "Loongson 1 family of machines"
276    select SYS_SUPPORTS_ZBOOT
277    help
278      This enables support for the Loongson 1 based machines.
279
280      Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
281      the ICT (Institute of Computing Technology) and the Chinese Academy
282      of Sciences.
283
284config MIPS_MALTA
285    bool "MIPS Malta board"
286    select ARCH_MAY_HAVE_PC_FDC
287    select BOOT_ELF32
288    select BOOT_RAW
289    select CEVT_R4K
290    select CSRC_R4K
291    select DMA_NONCOHERENT
292    select GENERIC_ISA_DMA
293    select HAVE_PCSPKR_PLATFORM
294    select IRQ_CPU
295    select IRQ_GIC
296    select HW_HAS_PCI
297    select I8253
298    select I8259
299    select MIPS_BOARDS_GEN
300    select MIPS_BONITO64
301    select MIPS_CPU_SCACHE
302    select PCI_GT64XXX_PCI0
303    select MIPS_MSC
304    select SWAP_IO_SPACE
305    select SYS_HAS_CPU_MIPS32_R1
306    select SYS_HAS_CPU_MIPS32_R2
307    select SYS_HAS_CPU_MIPS64_R1
308    select SYS_HAS_CPU_MIPS64_R2
309    select SYS_HAS_CPU_NEVADA
310    select SYS_HAS_CPU_RM7000
311    select SYS_HAS_EARLY_PRINTK
312    select SYS_SUPPORTS_32BIT_KERNEL
313    select SYS_SUPPORTS_64BIT_KERNEL
314    select SYS_SUPPORTS_BIG_ENDIAN
315    select SYS_SUPPORTS_LITTLE_ENDIAN
316    select SYS_SUPPORTS_MIPS_CMP
317    select SYS_SUPPORTS_MULTITHREADING
318    select SYS_SUPPORTS_SMARTMIPS
319    select SYS_SUPPORTS_ZBOOT
320    help
321      This enables support for the MIPS Technologies Malta evaluation
322      board.
323
324config MIPS_SIM
325    bool 'MIPS simulator (MIPSsim)'
326    select CEVT_R4K
327    select CSRC_R4K
328    select DMA_NONCOHERENT
329    select SYS_HAS_EARLY_PRINTK
330    select IRQ_CPU
331    select BOOT_RAW
332    select SYS_HAS_CPU_MIPS32_R1
333    select SYS_HAS_CPU_MIPS32_R2
334    select SYS_HAS_EARLY_PRINTK
335    select SYS_SUPPORTS_32BIT_KERNEL
336    select SYS_SUPPORTS_BIG_ENDIAN
337    select SYS_SUPPORTS_MULTITHREADING
338    select SYS_SUPPORTS_LITTLE_ENDIAN
339    help
340      This option enables support for MIPS Technologies MIPSsim software
341      emulator.
342
343config NEC_MARKEINS
344    bool "NEC EMMA2RH Mark-eins board"
345    select SOC_EMMA2RH
346    select HW_HAS_PCI
347    help
348      This enables support for the NEC Electronics Mark-eins boards.
349
350config MACH_VR41XX
351    bool "NEC VR4100 series based machines"
352    select CEVT_R4K
353    select CSRC_R4K
354    select SYS_HAS_CPU_VR41XX
355    select ARCH_REQUIRE_GPIOLIB
356
357config NXP_STB220
358    bool "NXP STB220 board"
359    select SOC_PNX833X
360    help
361     Support for NXP Semiconductors STB220 Development Board.
362
363config NXP_STB225
364    bool "NXP 225 board"
365    select SOC_PNX833X
366    select SOC_PNX8335
367    help
368     Support for NXP Semiconductors STB225 Development Board.
369
370config PNX8550_JBS
371    bool "NXP PNX8550 based JBS board"
372    select PNX8550
373    select SYS_SUPPORTS_LITTLE_ENDIAN
374
375config PNX8550_STB810
376    bool "NXP PNX8550 based STB810 board"
377    select PNX8550
378    select SYS_SUPPORTS_LITTLE_ENDIAN
379
380config PMC_MSP
381    bool "PMC-Sierra MSP chipsets"
382    depends on EXPERIMENTAL
383    select CEVT_R4K
384    select CSRC_R4K
385    select DMA_NONCOHERENT
386    select SWAP_IO_SPACE
387    select NO_EXCEPT_FILL
388    select BOOT_RAW
389    select SYS_HAS_CPU_MIPS32_R1
390    select SYS_HAS_CPU_MIPS32_R2
391    select SYS_SUPPORTS_32BIT_KERNEL
392    select SYS_SUPPORTS_BIG_ENDIAN
393    select IRQ_CPU
394    select SERIAL_8250
395    select SERIAL_8250_CONSOLE
396    help
397      This adds support for the PMC-Sierra family of Multi-Service
398      Processor System-On-A-Chips. These parts include a number
399      of integrated peripherals, interfaces and DSPs in addition to
400      a variety of MIPS cores.
401
402config PMC_YOSEMITE
403    bool "PMC-Sierra Yosemite eval board"
404    select CEVT_R4K
405    select CSRC_R4K
406    select DMA_COHERENT
407    select HW_HAS_PCI
408    select IRQ_CPU
409    select IRQ_CPU_RM7K
410    select IRQ_CPU_RM9K
411    select SWAP_IO_SPACE
412    select SYS_HAS_CPU_RM9000
413    select SYS_HAS_EARLY_PRINTK
414    select SYS_SUPPORTS_32BIT_KERNEL
415    select SYS_SUPPORTS_64BIT_KERNEL
416    select SYS_SUPPORTS_BIG_ENDIAN
417    select SYS_SUPPORTS_HIGHMEM
418    select SYS_SUPPORTS_SMP
419    help
420      Yosemite is an evaluation board for the RM9000x2 processor
421      manufactured by PMC-Sierra.
422
423config POWERTV
424    bool "Cisco PowerTV"
425    select BOOT_ELF32
426    select CEVT_R4K
427    select CPU_MIPSR2_IRQ_VI
428    select CPU_MIPSR2_IRQ_EI
429    select CSRC_POWERTV
430    select DMA_NONCOHERENT
431    select HW_HAS_PCI
432    select SYS_HAS_EARLY_PRINTK
433    select SYS_HAS_CPU_MIPS32_R2
434    select SYS_SUPPORTS_32BIT_KERNEL
435    select SYS_SUPPORTS_BIG_ENDIAN
436    select SYS_SUPPORTS_HIGHMEM
437    select USB_OHCI_LITTLE_ENDIAN
438    help
439      This enables support for the Cisco PowerTV Platform.
440
441config SGI_IP22
442    bool "SGI IP22 (Indy/Indigo2)"
443    select ARC
444    select ARC32
445    select BOOT_ELF32
446    select CEVT_R4K
447    select CSRC_R4K
448    select DEFAULT_SGI_PARTITION
449    select DMA_NONCOHERENT
450    select HW_HAS_EISA
451    select I8253
452    select I8259
453    select IP22_CPU_SCACHE
454    select IRQ_CPU
455    select GENERIC_ISA_DMA_SUPPORT_BROKEN
456    select SGI_HAS_I8042
457    select SGI_HAS_INDYDOG
458    select SGI_HAS_HAL2
459    select SGI_HAS_SEEQ
460    select SGI_HAS_WD93
461    select SGI_HAS_ZILOG
462    select SWAP_IO_SPACE
463    select SYS_HAS_CPU_R4X00
464    select SYS_HAS_CPU_R5000
465    #
466    # Disable EARLY_PRINTK for now since it leads to overwritten prom
467    # memory during early boot on some machines.
468    #
469    # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
470    # for a more details discussion
471    #
472    # select SYS_HAS_EARLY_PRINTK
473    select SYS_SUPPORTS_32BIT_KERNEL
474    select SYS_SUPPORTS_64BIT_KERNEL
475    select SYS_SUPPORTS_BIG_ENDIAN
476    help
477      This are the SGI Indy, Challenge S and Indigo2, as well as certain
478      OEM variants like the Tandem CMN B006S. To compile a Linux kernel
479      that runs on these, say Y here.
480
481config SGI_IP27
482    bool "SGI IP27 (Origin200/2000)"
483    select ARC
484    select ARC64
485    select BOOT_ELF64
486    select DEFAULT_SGI_PARTITION
487    select DMA_COHERENT
488    select SYS_HAS_EARLY_PRINTK
489    select HW_HAS_PCI
490    select NR_CPUS_DEFAULT_64
491    select SYS_HAS_CPU_R10000
492    select SYS_SUPPORTS_64BIT_KERNEL
493    select SYS_SUPPORTS_BIG_ENDIAN
494    select SYS_SUPPORTS_NUMA
495    select SYS_SUPPORTS_SMP
496    help
497      This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
498      workstations. To compile a Linux kernel that runs on these, say Y
499      here.
500
501config SGI_IP28
502    bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
503    depends on EXPERIMENTAL
504    select ARC
505    select ARC64
506    select BOOT_ELF64
507    select CEVT_R4K
508    select CSRC_R4K
509    select DEFAULT_SGI_PARTITION
510    select DMA_NONCOHERENT
511    select GENERIC_ISA_DMA_SUPPORT_BROKEN
512    select IRQ_CPU
513    select HW_HAS_EISA
514    select I8253
515    select I8259
516    select SGI_HAS_I8042
517    select SGI_HAS_INDYDOG
518    select SGI_HAS_HAL2
519    select SGI_HAS_SEEQ
520    select SGI_HAS_WD93
521    select SGI_HAS_ZILOG
522    select SWAP_IO_SPACE
523    select SYS_HAS_CPU_R10000
524    #
525    # Disable EARLY_PRINTK for now since it leads to overwritten prom
526    # memory during early boot on some machines.
527    #
528    # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
529    # for a more details discussion
530    #
531    # select SYS_HAS_EARLY_PRINTK
532    select SYS_SUPPORTS_64BIT_KERNEL
533    select SYS_SUPPORTS_BIG_ENDIAN
534      help
535        This is the SGI Indigo2 with R10000 processor. To compile a Linux
536        kernel that runs on these, say Y here.
537
538config SGI_IP32
539    bool "SGI IP32 (O2)"
540    select ARC
541    select ARC32
542    select BOOT_ELF32
543    select CEVT_R4K
544    select CSRC_R4K
545    select DMA_NONCOHERENT
546    select HW_HAS_PCI
547    select IRQ_CPU
548    select R5000_CPU_SCACHE
549    select RM7000_CPU_SCACHE
550    select SYS_HAS_CPU_R5000
551    select SYS_HAS_CPU_R10000 if BROKEN
552    select SYS_HAS_CPU_RM7000
553    select SYS_HAS_CPU_NEVADA
554    select SYS_SUPPORTS_64BIT_KERNEL
555    select SYS_SUPPORTS_BIG_ENDIAN
556    help
557      If you want this kernel to run on SGI O2 workstation, say Y here.
558
559config SIBYTE_CRHINE
560    bool "Sibyte BCM91120C-CRhine"
561    depends on EXPERIMENTAL
562    select BOOT_ELF32
563    select DMA_COHERENT
564    select SIBYTE_BCM1120
565    select SWAP_IO_SPACE
566    select SYS_HAS_CPU_SB1
567    select SYS_SUPPORTS_BIG_ENDIAN
568    select SYS_SUPPORTS_LITTLE_ENDIAN
569
570config SIBYTE_CARMEL
571    bool "Sibyte BCM91120x-Carmel"
572    depends on EXPERIMENTAL
573    select BOOT_ELF32
574    select DMA_COHERENT
575    select SIBYTE_BCM1120
576    select SWAP_IO_SPACE
577    select SYS_HAS_CPU_SB1
578    select SYS_SUPPORTS_BIG_ENDIAN
579    select SYS_SUPPORTS_LITTLE_ENDIAN
580
581config SIBYTE_CRHONE
582    bool "Sibyte BCM91125C-CRhone"
583    depends on EXPERIMENTAL
584    select BOOT_ELF32
585    select DMA_COHERENT
586    select SIBYTE_BCM1125
587    select SWAP_IO_SPACE
588    select SYS_HAS_CPU_SB1
589    select SYS_SUPPORTS_BIG_ENDIAN
590    select SYS_SUPPORTS_HIGHMEM
591    select SYS_SUPPORTS_LITTLE_ENDIAN
592
593config SIBYTE_RHONE
594    bool "Sibyte BCM91125E-Rhone"
595    depends on EXPERIMENTAL
596    select BOOT_ELF32
597    select DMA_COHERENT
598    select SIBYTE_BCM1125H
599    select SWAP_IO_SPACE
600    select SYS_HAS_CPU_SB1
601    select SYS_SUPPORTS_BIG_ENDIAN
602    select SYS_SUPPORTS_LITTLE_ENDIAN
603
604config SIBYTE_SWARM
605    bool "Sibyte BCM91250A-SWARM"
606    select BOOT_ELF32
607    select DMA_COHERENT
608    select HAVE_PATA_PLATFORM
609    select NR_CPUS_DEFAULT_2
610    select SIBYTE_SB1250
611    select SWAP_IO_SPACE
612    select SYS_HAS_CPU_SB1
613    select SYS_SUPPORTS_BIG_ENDIAN
614    select SYS_SUPPORTS_HIGHMEM
615    select SYS_SUPPORTS_LITTLE_ENDIAN
616    select ZONE_DMA32 if 64BIT
617
618config SIBYTE_LITTLESUR
619    bool "Sibyte BCM91250C2-LittleSur"
620    depends on EXPERIMENTAL
621    select BOOT_ELF32
622    select DMA_COHERENT
623    select HAVE_PATA_PLATFORM
624    select NR_CPUS_DEFAULT_2
625    select SIBYTE_SB1250
626    select SWAP_IO_SPACE
627    select SYS_HAS_CPU_SB1
628    select SYS_SUPPORTS_BIG_ENDIAN
629    select SYS_SUPPORTS_HIGHMEM
630    select SYS_SUPPORTS_LITTLE_ENDIAN
631
632config SIBYTE_SENTOSA
633    bool "Sibyte BCM91250E-Sentosa"
634    depends on EXPERIMENTAL
635    select BOOT_ELF32
636    select DMA_COHERENT
637    select NR_CPUS_DEFAULT_2
638    select SIBYTE_SB1250
639    select SWAP_IO_SPACE
640    select SYS_HAS_CPU_SB1
641    select SYS_SUPPORTS_BIG_ENDIAN
642    select SYS_SUPPORTS_LITTLE_ENDIAN
643
644config SIBYTE_BIGSUR
645    bool "Sibyte BCM91480B-BigSur"
646    select BOOT_ELF32
647    select DMA_COHERENT
648    select NR_CPUS_DEFAULT_4
649    select SIBYTE_BCM1x80
650    select SWAP_IO_SPACE
651    select SYS_HAS_CPU_SB1
652    select SYS_SUPPORTS_BIG_ENDIAN
653    select SYS_SUPPORTS_HIGHMEM
654    select SYS_SUPPORTS_LITTLE_ENDIAN
655    select ZONE_DMA32 if 64BIT
656
657config SNI_RM
658    bool "SNI RM200/300/400"
659    select ARC if CPU_LITTLE_ENDIAN
660    select ARC32 if CPU_LITTLE_ENDIAN
661    select SNIPROM if CPU_BIG_ENDIAN
662    select ARCH_MAY_HAVE_PC_FDC
663    select BOOT_ELF32
664    select CEVT_R4K
665    select CSRC_R4K
666    select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
667    select DMA_NONCOHERENT
668    select GENERIC_ISA_DMA
669    select HAVE_PCSPKR_PLATFORM
670    select HW_HAS_EISA
671    select HW_HAS_PCI
672    select IRQ_CPU
673    select I8253
674    select I8259
675    select ISA
676    select SWAP_IO_SPACE if CPU_BIG_ENDIAN
677    select SYS_HAS_CPU_R4X00
678    select SYS_HAS_CPU_R5000
679    select SYS_HAS_CPU_R10000
680    select R5000_CPU_SCACHE
681    select SYS_HAS_EARLY_PRINTK
682    select SYS_SUPPORTS_32BIT_KERNEL
683    select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
684    select SYS_SUPPORTS_BIG_ENDIAN
685    select SYS_SUPPORTS_HIGHMEM
686    select SYS_SUPPORTS_LITTLE_ENDIAN
687    help
688      The SNI RM200/300/400 are MIPS-based machines manufactured by
689      Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
690      Technology and now in turn merged with Fujitsu. Say Y here to
691      support this machine type.
692
693config MACH_TX39XX
694    bool "Toshiba TX39 series based machines"
695
696config MACH_TX49XX
697    bool "Toshiba TX49 series based machines"
698
699config MIKROTIK_RB532
700    bool "Mikrotik RB532 boards"
701    select CEVT_R4K
702    select CSRC_R4K
703    select DMA_NONCOHERENT
704    select HW_HAS_PCI
705    select IRQ_CPU
706    select SYS_HAS_CPU_MIPS32_R1
707    select SYS_SUPPORTS_32BIT_KERNEL
708    select SYS_SUPPORTS_LITTLE_ENDIAN
709    select SWAP_IO_SPACE
710    select BOOT_RAW
711    select ARCH_REQUIRE_GPIOLIB
712    help
713      Support the Mikrotik(tm) RouterBoard 532 series,
714      based on the IDT RC32434 SoC.
715
716config WR_PPMC
717    bool "Wind River PPMC board"
718    select CEVT_R4K
719    select CSRC_R4K
720    select IRQ_CPU
721    select BOOT_ELF32
722    select DMA_NONCOHERENT
723    select HW_HAS_PCI
724    select PCI_GT64XXX_PCI0
725    select SWAP_IO_SPACE
726    select SYS_HAS_CPU_MIPS32_R1
727    select SYS_HAS_CPU_MIPS32_R2
728    select SYS_HAS_CPU_MIPS64_R1
729    select SYS_HAS_CPU_NEVADA
730    select SYS_HAS_CPU_RM7000
731    select SYS_SUPPORTS_32BIT_KERNEL
732    select SYS_SUPPORTS_64BIT_KERNEL
733    select SYS_SUPPORTS_BIG_ENDIAN
734    select SYS_SUPPORTS_LITTLE_ENDIAN
735    help
736      This enables support for the Wind River MIPS32 4KC PPMC evaluation
737      board, which is based on GT64120 bridge chip.
738
739config CAVIUM_OCTEON_SIMULATOR
740    bool "Cavium Networks Octeon Simulator"
741    select CEVT_R4K
742    select 64BIT_PHYS_ADDR
743    select DMA_COHERENT
744    select SYS_SUPPORTS_64BIT_KERNEL
745    select SYS_SUPPORTS_BIG_ENDIAN
746    select SYS_SUPPORTS_HOTPLUG_CPU
747    select SYS_HAS_CPU_CAVIUM_OCTEON
748    select HOLES_IN_ZONE
749    help
750      The Octeon simulator is software performance model of the Cavium
751      Octeon Processor. It supports simulating Octeon processors on x86
752      hardware.
753
754config CAVIUM_OCTEON_REFERENCE_BOARD
755    bool "Cavium Networks Octeon reference board"
756    select CEVT_R4K
757    select 64BIT_PHYS_ADDR
758    select DMA_COHERENT
759    select SYS_SUPPORTS_64BIT_KERNEL
760    select SYS_SUPPORTS_BIG_ENDIAN
761    select SYS_SUPPORTS_HOTPLUG_CPU
762    select SYS_HAS_EARLY_PRINTK
763    select SYS_HAS_CPU_CAVIUM_OCTEON
764    select SWAP_IO_SPACE
765    select HW_HAS_PCI
766    select ARCH_SUPPORTS_MSI
767    select ZONE_DMA32
768    select USB_ARCH_HAS_OHCI
769    select USB_ARCH_HAS_EHCI
770    select HOLES_IN_ZONE
771    help
772      This option supports all of the Octeon reference boards from Cavium
773      Networks. It builds a kernel that dynamically determines the Octeon
774      CPU type and supports all known board reference implementations.
775      Some of the supported boards are:
776        EBT3000
777        EBH3000
778        EBH3100
779        Thunder
780        Kodama
781        Hikari
782      Say Y here for most Octeon reference boards.
783
784config NLM_XLR_BOARD
785    bool "Netlogic XLR/XLS based systems"
786    depends on EXPERIMENTAL
787    select BOOT_ELF32
788    select NLM_COMMON
789    select SYS_HAS_CPU_XLR
790    select SYS_SUPPORTS_SMP
791    select HW_HAS_PCI
792    select SWAP_IO_SPACE
793    select SYS_SUPPORTS_32BIT_KERNEL
794    select SYS_SUPPORTS_64BIT_KERNEL
795    select 64BIT_PHYS_ADDR
796    select SYS_SUPPORTS_BIG_ENDIAN
797    select SYS_SUPPORTS_HIGHMEM
798    select DMA_COHERENT
799    select NR_CPUS_DEFAULT_32
800    select CEVT_R4K
801    select CSRC_R4K
802    select IRQ_CPU
803    select ARCH_SUPPORTS_MSI
804    select ZONE_DMA if 64BIT
805    select SYNC_R4K
806    select SYS_HAS_EARLY_PRINTK
807    select USB_ARCH_HAS_OHCI if USB_SUPPORT
808    select USB_ARCH_HAS_EHCI if USB_SUPPORT
809    help
810      Support for systems based on Netlogic XLR and XLS processors.
811      Say Y here if you have a XLR or XLS based board.
812
813config NLM_XLP_BOARD
814    bool "Netlogic XLP based systems"
815    depends on EXPERIMENTAL
816    select BOOT_ELF32
817    select NLM_COMMON
818    select SYS_HAS_CPU_XLP
819    select SYS_SUPPORTS_SMP
820    select HW_HAS_PCI
821    select SYS_SUPPORTS_32BIT_KERNEL
822    select SYS_SUPPORTS_64BIT_KERNEL
823    select 64BIT_PHYS_ADDR
824    select SYS_SUPPORTS_BIG_ENDIAN
825    select SYS_SUPPORTS_LITTLE_ENDIAN
826    select SYS_SUPPORTS_HIGHMEM
827    select DMA_COHERENT
828    select NR_CPUS_DEFAULT_32
829    select CEVT_R4K
830    select CSRC_R4K
831    select IRQ_CPU
832    select ZONE_DMA if 64BIT
833    select SYNC_R4K
834    select SYS_HAS_EARLY_PRINTK
835    help
836      This board is based on Netlogic XLP Processor.
837      Say Y here if you have a XLP based board.
838
839endchoice
840
841source "arch/mips/alchemy/Kconfig"
842source "arch/mips/ath79/Kconfig"
843source "arch/mips/bcm47xx/Kconfig"
844source "arch/mips/bcm63xx/Kconfig"
845source "arch/mips/jazz/Kconfig"
846source "arch/mips/jz4740/Kconfig"
847source "arch/mips/lantiq/Kconfig"
848source "arch/mips/lasat/Kconfig"
849source "arch/mips/pmc-sierra/Kconfig"
850source "arch/mips/powertv/Kconfig"
851source "arch/mips/sgi-ip27/Kconfig"
852source "arch/mips/sibyte/Kconfig"
853source "arch/mips/txx9/Kconfig"
854source "arch/mips/vr41xx/Kconfig"
855source "arch/mips/cavium-octeon/Kconfig"
856source "arch/mips/loongson/Kconfig"
857source "arch/mips/loongson1/Kconfig"
858source "arch/mips/netlogic/Kconfig"
859
860endmenu
861
862config RWSEM_GENERIC_SPINLOCK
863    bool
864    default y
865
866config RWSEM_XCHGADD_ALGORITHM
867    bool
868
869config ARCH_HAS_ILOG2_U32
870    bool
871    default n
872
873config ARCH_HAS_ILOG2_U64
874    bool
875    default n
876
877config GENERIC_HWEIGHT
878    bool
879    default y
880
881config GENERIC_CALIBRATE_DELAY
882    bool
883    default y
884
885config SCHED_OMIT_FRAME_POINTER
886    bool
887    default y
888
889#
890# Select some configuration options automatically based on user selections.
891#
892config ARC
893    bool
894
895config ARCH_MAY_HAVE_PC_FDC
896    bool
897
898config BOOT_RAW
899    bool
900
901config CEVT_BCM1480
902    bool
903
904config CEVT_DS1287
905    bool
906
907config CEVT_GT641XX
908    bool
909
910config CEVT_R4K_LIB
911    bool
912
913config CEVT_R4K
914    select CEVT_R4K_LIB
915    bool
916
917config CEVT_SB1250
918    bool
919
920config CEVT_TXX9
921    bool
922
923config CSRC_BCM1480
924    bool
925
926config CSRC_IOASIC
927    bool
928
929config CSRC_POWERTV
930    bool
931
932config CSRC_R4K_LIB
933    bool
934
935config CSRC_R4K
936    select CSRC_R4K_LIB
937    bool
938
939config CSRC_SB1250
940    bool
941
942config GPIO_TXX9
943    select GENERIC_GPIO
944    select ARCH_REQUIRE_GPIOLIB
945    bool
946
947config CFE
948    bool
949
950config ARCH_DMA_ADDR_T_64BIT
951    def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
952
953config DMA_COHERENT
954    bool
955
956config DMA_NONCOHERENT
957    bool
958    select NEED_DMA_MAP_STATE
959
960config NEED_DMA_MAP_STATE
961    bool
962
963config SYS_HAS_EARLY_PRINTK
964    bool
965
966config HOTPLUG_CPU
967    bool "Support for hot-pluggable CPUs"
968    depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
969    help
970      Say Y here to allow turning CPUs off and on. CPUs can be
971      controlled through /sys/devices/system/cpu.
972      (Note: power management support will enable this option
973        automatically on SMP systems. )
974      Say N if you want to disable CPU hotplug.
975
976config SYS_SUPPORTS_HOTPLUG_CPU
977    bool
978
979config I8259
980    bool
981
982config MIPS_BONITO64
983    bool
984
985config MIPS_MSC
986    bool
987
988config MIPS_NILE4
989    bool
990
991config MIPS_DISABLE_OBSOLETE_IDE
992    bool
993
994config SYNC_R4K
995    bool
996
997config MIPS_MACHINE
998    def_bool n
999
1000config NO_IOPORT
1001    def_bool n
1002
1003config GENERIC_ISA_DMA
1004    bool
1005    select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1006    select ISA_DMA_API
1007
1008config GENERIC_ISA_DMA_SUPPORT_BROKEN
1009    bool
1010    select GENERIC_ISA_DMA
1011
1012config ISA_DMA_API
1013    bool
1014
1015config GENERIC_GPIO
1016    bool
1017
1018config HOLES_IN_ZONE
1019    bool
1020
1021#
1022# Endianness selection. Sufficiently obscure so many users don't know what to
1023# answer,so we try hard to limit the available choices. Also the use of a
1024# choice statement should be more obvious to the user.
1025#
1026choice
1027    prompt "Endianness selection"
1028    help
1029      Some MIPS machines can be configured for either little or big endian
1030      byte order. These modes require different kernels and a different
1031      Linux distribution. In general there is one preferred byteorder for a
1032      particular system but some systems are just as commonly used in the
1033      one or the other endianness.
1034
1035config CPU_BIG_ENDIAN
1036    bool "Big endian"
1037    depends on SYS_SUPPORTS_BIG_ENDIAN
1038
1039config CPU_LITTLE_ENDIAN
1040    bool "Little endian"
1041    depends on SYS_SUPPORTS_LITTLE_ENDIAN
1042    help
1043
1044endchoice
1045
1046config EXPORT_UASM
1047    bool
1048
1049config SYS_SUPPORTS_APM_EMULATION
1050    bool
1051
1052config SYS_SUPPORTS_BIG_ENDIAN
1053    bool
1054
1055config SYS_SUPPORTS_LITTLE_ENDIAN
1056    bool
1057
1058config SYS_SUPPORTS_HUGETLBFS
1059    bool
1060    depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1061    default y
1062
1063config IRQ_CPU
1064    bool
1065
1066config IRQ_CPU_RM7K
1067    bool
1068
1069config IRQ_CPU_RM9K
1070    bool
1071
1072config IRQ_MSP_SLP
1073    bool
1074
1075config IRQ_MSP_CIC
1076    bool
1077
1078config IRQ_TXX9
1079    bool
1080
1081config IRQ_GT641XX
1082    bool
1083
1084config IRQ_GIC
1085    bool
1086
1087config MIPS_BOARDS_GEN
1088    bool
1089
1090config PCI_GT64XXX_PCI0
1091    bool
1092
1093config NO_EXCEPT_FILL
1094    bool
1095
1096config MIPS_RM9122
1097    bool
1098    select SERIAL_RM9000
1099
1100config SOC_EMMA2RH
1101    bool
1102    select CEVT_R4K
1103    select CSRC_R4K
1104    select DMA_NONCOHERENT
1105    select IRQ_CPU
1106    select SWAP_IO_SPACE
1107    select SYS_HAS_CPU_R5500
1108    select SYS_SUPPORTS_32BIT_KERNEL
1109    select SYS_SUPPORTS_64BIT_KERNEL
1110    select SYS_SUPPORTS_BIG_ENDIAN
1111
1112config SOC_PNX833X
1113    bool
1114    select CEVT_R4K
1115    select CSRC_R4K
1116    select IRQ_CPU
1117    select DMA_NONCOHERENT
1118    select SYS_HAS_CPU_MIPS32_R2
1119    select SYS_SUPPORTS_32BIT_KERNEL
1120    select SYS_SUPPORTS_LITTLE_ENDIAN
1121    select SYS_SUPPORTS_BIG_ENDIAN
1122    select GENERIC_GPIO
1123    select CPU_MIPSR2_IRQ_VI
1124
1125config SOC_PNX8335
1126    bool
1127    select SOC_PNX833X
1128
1129config PNX8550
1130    bool
1131    select SOC_PNX8550
1132
1133config SOC_PNX8550
1134    bool
1135    select DMA_NONCOHERENT
1136    select HW_HAS_PCI
1137    select SYS_HAS_CPU_MIPS32_R1
1138    select SYS_HAS_EARLY_PRINTK
1139    select SYS_SUPPORTS_32BIT_KERNEL
1140    select GENERIC_GPIO
1141
1142config SWAP_IO_SPACE
1143    bool
1144
1145config SERIAL_RM9000
1146    bool
1147
1148config SGI_HAS_INDYDOG
1149    bool
1150
1151config SGI_HAS_HAL2
1152    bool
1153
1154config SGI_HAS_SEEQ
1155    bool
1156
1157config SGI_HAS_WD93
1158    bool
1159
1160config SGI_HAS_ZILOG
1161    bool
1162
1163config SGI_HAS_I8042
1164    bool
1165
1166config DEFAULT_SGI_PARTITION
1167    bool
1168
1169config ARC32
1170    bool
1171
1172config SNIPROM
1173    bool
1174
1175config BOOT_ELF32
1176    bool
1177
1178config MIPS_L1_CACHE_SHIFT
1179    int
1180    default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
1181    default "6" if MIPS_CPU_SCACHE
1182    default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1183    default "5"
1184
1185config HAVE_STD_PC_SERIAL_PORT
1186    bool
1187
1188config ARC_CONSOLE
1189    bool "ARC console support"
1190    depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1191
1192config ARC_MEMORY
1193    bool
1194    depends on MACH_JAZZ || SNI_RM || SGI_IP32
1195    default y
1196
1197config ARC_PROMLIB
1198    bool
1199    depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1200    default y
1201
1202config ARC64
1203    bool
1204
1205config BOOT_ELF64
1206    bool
1207
1208menu "CPU selection"
1209
1210choice
1211    prompt "CPU type"
1212    default CPU_R4X00
1213
1214config CPU_LOONGSON2E
1215    bool "Loongson 2E"
1216    depends on SYS_HAS_CPU_LOONGSON2E
1217    select CPU_LOONGSON2
1218    help
1219      The Loongson 2E processor implements the MIPS III instruction set
1220      with many extensions.
1221
1222      It has an internal FPGA northbridge, which is compatible to
1223      bonito64.
1224
1225config CPU_LOONGSON2F
1226    bool "Loongson 2F"
1227    depends on SYS_HAS_CPU_LOONGSON2F
1228    select CPU_LOONGSON2
1229    select GENERIC_GPIO
1230    select ARCH_REQUIRE_GPIOLIB
1231    help
1232      The Loongson 2F processor implements the MIPS III instruction set
1233      with many extensions.
1234
1235      Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1236      have a similar programming interface with FPGA northbridge used in
1237      Loongson2E.
1238
1239config CPU_LOONGSON1B
1240    bool "Loongson 1B"
1241    depends on SYS_HAS_CPU_LOONGSON1B
1242    select CPU_LOONGSON1
1243    help
1244      The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1245      release 2 instruction set.
1246
1247config CPU_MIPS32_R1
1248    bool "MIPS32 Release 1"
1249    depends on SYS_HAS_CPU_MIPS32_R1
1250    select CPU_HAS_PREFETCH
1251    select CPU_SUPPORTS_32BIT_KERNEL
1252    select CPU_SUPPORTS_HIGHMEM
1253    help
1254      Choose this option to build a kernel for release 1 or later of the
1255      MIPS32 architecture. Most modern embedded systems with a 32-bit
1256      MIPS processor are based on a MIPS32 processor. If you know the
1257      specific type of processor in your system, choose those that one
1258      otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1259      Release 2 of the MIPS32 architecture is available since several
1260      years so chances are you even have a MIPS32 Release 2 processor
1261      in which case you should choose CPU_MIPS32_R2 instead for better
1262      performance.
1263
1264config CPU_MIPS32_R2
1265    bool "MIPS32 Release 2"
1266    depends on SYS_HAS_CPU_MIPS32_R2
1267    select CPU_HAS_PREFETCH
1268    select CPU_SUPPORTS_32BIT_KERNEL
1269    select CPU_SUPPORTS_HIGHMEM
1270    help
1271      Choose this option to build a kernel for release 2 or later of the
1272      MIPS32 architecture. Most modern embedded systems with a 32-bit
1273      MIPS processor are based on a MIPS32 processor. If you know the
1274      specific type of processor in your system, choose those that one
1275      otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1276
1277config CPU_MIPS64_R1
1278    bool "MIPS64 Release 1"
1279    depends on SYS_HAS_CPU_MIPS64_R1
1280    select CPU_HAS_PREFETCH
1281    select CPU_SUPPORTS_32BIT_KERNEL
1282    select CPU_SUPPORTS_64BIT_KERNEL
1283    select CPU_SUPPORTS_HIGHMEM
1284    select CPU_SUPPORTS_HUGEPAGES
1285    help
1286      Choose this option to build a kernel for release 1 or later of the
1287      MIPS64 architecture. Many modern embedded systems with a 64-bit
1288      MIPS processor are based on a MIPS64 processor. If you know the
1289      specific type of processor in your system, choose those that one
1290      otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1291      Release 2 of the MIPS64 architecture is available since several
1292      years so chances are you even have a MIPS64 Release 2 processor
1293      in which case you should choose CPU_MIPS64_R2 instead for better
1294      performance.
1295
1296config CPU_MIPS64_R2
1297    bool "MIPS64 Release 2"
1298    depends on SYS_HAS_CPU_MIPS64_R2
1299    select CPU_HAS_PREFETCH
1300    select CPU_SUPPORTS_32BIT_KERNEL
1301    select CPU_SUPPORTS_64BIT_KERNEL
1302    select CPU_SUPPORTS_HIGHMEM
1303    select CPU_SUPPORTS_HUGEPAGES
1304    help
1305      Choose this option to build a kernel for release 2 or later of the
1306      MIPS64 architecture. Many modern embedded systems with a 64-bit
1307      MIPS processor are based on a MIPS64 processor. If you know the
1308      specific type of processor in your system, choose those that one
1309      otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1310
1311config CPU_R3000
1312    bool "R3000"
1313    depends on SYS_HAS_CPU_R3000
1314    select CPU_HAS_WB
1315    select CPU_SUPPORTS_32BIT_KERNEL
1316    select CPU_SUPPORTS_HIGHMEM
1317    help
1318      Please make sure to pick the right CPU type. Linux/MIPS is not
1319      designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1320      *not* work on R4000 machines and vice versa. However, since most
1321      of the supported machines have an R4000 (or similar) CPU, R4x00
1322      might be a safe bet. If the resulting kernel does not work,
1323      try to recompile with R3000.
1324
1325config CPU_TX39XX
1326    bool "R39XX"
1327    depends on SYS_HAS_CPU_TX39XX
1328    select CPU_SUPPORTS_32BIT_KERNEL
1329
1330config CPU_VR41XX
1331    bool "R41xx"
1332    depends on SYS_HAS_CPU_VR41XX
1333    select CPU_SUPPORTS_32BIT_KERNEL
1334    select CPU_SUPPORTS_64BIT_KERNEL
1335    help
1336      The options selects support for the NEC VR4100 series of processors.
1337      Only choose this option if you have one of these processors as a
1338      kernel built with this option will not run on any other type of
1339      processor or vice versa.
1340
1341config CPU_R4300
1342    bool "R4300"
1343    depends on SYS_HAS_CPU_R4300
1344    select CPU_SUPPORTS_32BIT_KERNEL
1345    select CPU_SUPPORTS_64BIT_KERNEL
1346    help
1347      MIPS Technologies R4300-series processors.
1348
1349config CPU_R4X00
1350    bool "R4x00"
1351    depends on SYS_HAS_CPU_R4X00
1352    select CPU_SUPPORTS_32BIT_KERNEL
1353    select CPU_SUPPORTS_64BIT_KERNEL
1354    help
1355      MIPS Technologies R4000-series processors other than 4300, including
1356      the R4000, R4400, R4600, and 4700.
1357
1358config CPU_TX49XX
1359    bool "R49XX"
1360    depends on SYS_HAS_CPU_TX49XX
1361    select CPU_HAS_PREFETCH
1362    select CPU_SUPPORTS_32BIT_KERNEL
1363    select CPU_SUPPORTS_64BIT_KERNEL
1364
1365config CPU_R5000
1366    bool "R5000"
1367    depends on SYS_HAS_CPU_R5000
1368    select CPU_SUPPORTS_32BIT_KERNEL
1369    select CPU_SUPPORTS_64BIT_KERNEL
1370    help
1371      MIPS Technologies R5000-series processors other than the Nevada.
1372
1373config CPU_R5432
1374    bool "R5432"
1375    depends on SYS_HAS_CPU_R5432
1376    select CPU_SUPPORTS_32BIT_KERNEL
1377    select CPU_SUPPORTS_64BIT_KERNEL
1378
1379config CPU_R5500
1380    bool "R5500"
1381    depends on SYS_HAS_CPU_R5500
1382    select CPU_SUPPORTS_32BIT_KERNEL
1383    select CPU_SUPPORTS_64BIT_KERNEL
1384    select CPU_SUPPORTS_HUGEPAGES
1385    help
1386      NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1387      instruction set.
1388
1389config CPU_R6000
1390    bool "R6000"
1391    depends on EXPERIMENTAL
1392    depends on SYS_HAS_CPU_R6000
1393    select CPU_SUPPORTS_32BIT_KERNEL
1394    help
1395      MIPS Technologies R6000 and R6000A series processors. Note these
1396      processors are extremely rare and the support for them is incomplete.
1397
1398config CPU_NEVADA
1399    bool "RM52xx"
1400    depends on SYS_HAS_CPU_NEVADA
1401    select CPU_SUPPORTS_32BIT_KERNEL
1402    select CPU_SUPPORTS_64BIT_KERNEL
1403    help
1404      QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1405
1406config CPU_R8000
1407    bool "R8000"
1408    depends on EXPERIMENTAL
1409    depends on SYS_HAS_CPU_R8000
1410    select CPU_HAS_PREFETCH
1411    select CPU_SUPPORTS_64BIT_KERNEL
1412    help
1413      MIPS Technologies R8000 processors. Note these processors are
1414      uncommon and the support for them is incomplete.
1415
1416config CPU_R10000
1417    bool "R10000"
1418    depends on SYS_HAS_CPU_R10000
1419    select CPU_HAS_PREFETCH
1420    select CPU_SUPPORTS_32BIT_KERNEL
1421    select CPU_SUPPORTS_64BIT_KERNEL
1422    select CPU_SUPPORTS_HIGHMEM
1423    help
1424      MIPS Technologies R10000-series processors.
1425
1426config CPU_RM7000
1427    bool "RM7000"
1428    depends on SYS_HAS_CPU_RM7000
1429    select CPU_HAS_PREFETCH
1430    select CPU_SUPPORTS_32BIT_KERNEL
1431    select CPU_SUPPORTS_64BIT_KERNEL
1432    select CPU_SUPPORTS_HIGHMEM
1433
1434config CPU_RM9000
1435    bool "RM9000"
1436    depends on SYS_HAS_CPU_RM9000
1437    select CPU_HAS_PREFETCH
1438    select CPU_SUPPORTS_32BIT_KERNEL
1439    select CPU_SUPPORTS_64BIT_KERNEL
1440    select CPU_SUPPORTS_HIGHMEM
1441    select WEAK_ORDERING
1442
1443config CPU_SB1
1444    bool "SB1"
1445    depends on SYS_HAS_CPU_SB1
1446    select CPU_SUPPORTS_32BIT_KERNEL
1447    select CPU_SUPPORTS_64BIT_KERNEL
1448    select CPU_SUPPORTS_HIGHMEM
1449    select WEAK_ORDERING
1450
1451config CPU_CAVIUM_OCTEON
1452    bool "Cavium Octeon processor"
1453    depends on SYS_HAS_CPU_CAVIUM_OCTEON
1454    select ARCH_SPARSEMEM_ENABLE
1455    select CPU_HAS_PREFETCH
1456    select CPU_SUPPORTS_64BIT_KERNEL
1457    select SYS_SUPPORTS_SMP
1458    select NR_CPUS_DEFAULT_16
1459    select WEAK_ORDERING
1460    select CPU_SUPPORTS_HIGHMEM
1461    select CPU_SUPPORTS_HUGEPAGES
1462    select LIBFDT
1463    select USE_OF
1464    help
1465      The Cavium Octeon processor is a highly integrated chip containing
1466      many ethernet hardware widgets for networking tasks. The processor
1467      can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1468      Full details can be found at http://www.caviumnetworks.com.
1469
1470config CPU_BMIPS3300
1471    bool "BMIPS3300"
1472    depends on SYS_HAS_CPU_BMIPS3300
1473    select CPU_BMIPS
1474    help
1475      Broadcom BMIPS3300 processors.
1476
1477config CPU_BMIPS4350
1478    bool "BMIPS4350"
1479    depends on SYS_HAS_CPU_BMIPS4350
1480    select CPU_BMIPS
1481    select SYS_SUPPORTS_SMP
1482    select SYS_SUPPORTS_HOTPLUG_CPU
1483    help
1484      Broadcom BMIPS4350 ("VIPER") processors.
1485
1486config CPU_BMIPS4380
1487    bool "BMIPS4380"
1488    depends on SYS_HAS_CPU_BMIPS4380
1489    select CPU_BMIPS
1490    select SYS_SUPPORTS_SMP
1491    select SYS_SUPPORTS_HOTPLUG_CPU
1492    help
1493      Broadcom BMIPS4380 processors.
1494
1495config CPU_BMIPS5000
1496    bool "BMIPS5000"
1497    depends on SYS_HAS_CPU_BMIPS5000
1498    select CPU_BMIPS
1499    select CPU_SUPPORTS_HIGHMEM
1500    select MIPS_CPU_SCACHE
1501    select SYS_SUPPORTS_SMP
1502    select SYS_SUPPORTS_HOTPLUG_CPU
1503    help
1504      Broadcom BMIPS5000 processors.
1505
1506config CPU_XLR
1507    bool "Netlogic XLR SoC"
1508    depends on SYS_HAS_CPU_XLR
1509    select CPU_SUPPORTS_32BIT_KERNEL
1510    select CPU_SUPPORTS_64BIT_KERNEL
1511    select CPU_SUPPORTS_HIGHMEM
1512    select WEAK_ORDERING
1513    select WEAK_REORDERING_BEYOND_LLSC
1514    select CPU_SUPPORTS_HUGEPAGES
1515    help
1516      Netlogic Microsystems XLR/XLS processors.
1517
1518config CPU_XLP
1519    bool "Netlogic XLP SoC"
1520    depends on SYS_HAS_CPU_XLP
1521    select CPU_SUPPORTS_32BIT_KERNEL
1522    select CPU_SUPPORTS_64BIT_KERNEL
1523    select CPU_SUPPORTS_HIGHMEM
1524    select CPU_HAS_LLSC
1525    select WEAK_ORDERING
1526    select WEAK_REORDERING_BEYOND_LLSC
1527    select CPU_HAS_PREFETCH
1528    help
1529      Netlogic Microsystems XLP processors.
1530endchoice
1531
1532if CPU_LOONGSON2F
1533config CPU_NOP_WORKAROUNDS
1534    bool
1535
1536config CPU_JUMP_WORKAROUNDS
1537    bool
1538
1539config CPU_LOONGSON2F_WORKAROUNDS
1540    bool "Loongson 2F Workarounds"
1541    default y
1542    select CPU_NOP_WORKAROUNDS
1543    select CPU_JUMP_WORKAROUNDS
1544    help
1545      Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1546      require workarounds. Without workarounds the system may hang
1547      unexpectedly. For more information please refer to the gas
1548      -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1549
1550      Loongson 2F03 and later have fixed these issues and no workarounds
1551      are needed. The workarounds have no significant side effect on them
1552      but may decrease the performance of the system so this option should
1553      be disabled unless the kernel is intended to be run on 2F01 or 2F02
1554      systems.
1555
1556      If unsure, please say Y.
1557endif # CPU_LOONGSON2F
1558
1559config SYS_SUPPORTS_ZBOOT
1560    bool
1561    select HAVE_KERNEL_GZIP
1562    select HAVE_KERNEL_BZIP2
1563    select HAVE_KERNEL_LZMA
1564    select HAVE_KERNEL_LZO
1565
1566config SYS_SUPPORTS_ZBOOT_UART16550
1567    bool
1568    select SYS_SUPPORTS_ZBOOT
1569
1570config CPU_LOONGSON2
1571    bool
1572    select CPU_SUPPORTS_32BIT_KERNEL
1573    select CPU_SUPPORTS_64BIT_KERNEL
1574    select CPU_SUPPORTS_HIGHMEM
1575
1576config CPU_LOONGSON1
1577    bool
1578    select CPU_MIPS32
1579    select CPU_MIPSR2
1580    select CPU_HAS_PREFETCH
1581    select CPU_SUPPORTS_32BIT_KERNEL
1582    select CPU_SUPPORTS_HIGHMEM
1583
1584config CPU_BMIPS
1585    bool
1586    select CPU_MIPS32
1587    select CPU_SUPPORTS_32BIT_KERNEL
1588    select DMA_NONCOHERENT
1589    select IRQ_CPU
1590    select SWAP_IO_SPACE
1591    select WEAK_ORDERING
1592
1593config SYS_HAS_CPU_LOONGSON2E
1594    bool
1595
1596config SYS_HAS_CPU_LOONGSON2F
1597    bool
1598    select CPU_SUPPORTS_CPUFREQ
1599    select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1600    select CPU_SUPPORTS_UNCACHED_ACCELERATED
1601
1602config SYS_HAS_CPU_LOONGSON1B
1603    bool
1604
1605config SYS_HAS_CPU_MIPS32_R1
1606    bool
1607
1608config SYS_HAS_CPU_MIPS32_R2
1609    bool
1610
1611config SYS_HAS_CPU_MIPS64_R1
1612    bool
1613
1614config SYS_HAS_CPU_MIPS64_R2
1615    bool
1616
1617config SYS_HAS_CPU_R3000
1618    bool
1619
1620config SYS_HAS_CPU_TX39XX
1621    bool
1622
1623config SYS_HAS_CPU_VR41XX
1624    bool
1625
1626config SYS_HAS_CPU_R4300
1627    bool
1628
1629config SYS_HAS_CPU_R4X00
1630    bool
1631
1632config SYS_HAS_CPU_TX49XX
1633    bool
1634
1635config SYS_HAS_CPU_R5000
1636    bool
1637
1638config SYS_HAS_CPU_R5432
1639    bool
1640
1641config SYS_HAS_CPU_R5500
1642    bool
1643
1644config SYS_HAS_CPU_R6000
1645    bool
1646
1647config SYS_HAS_CPU_NEVADA
1648    bool
1649
1650config SYS_HAS_CPU_R8000
1651    bool
1652
1653config SYS_HAS_CPU_R10000
1654    bool
1655
1656config SYS_HAS_CPU_RM7000
1657    bool
1658
1659config SYS_HAS_CPU_RM9000
1660    bool
1661
1662config SYS_HAS_CPU_SB1
1663    bool
1664
1665config SYS_HAS_CPU_CAVIUM_OCTEON
1666    bool
1667
1668config SYS_HAS_CPU_BMIPS3300
1669    bool
1670
1671config SYS_HAS_CPU_BMIPS4350
1672    bool
1673
1674config SYS_HAS_CPU_BMIPS4380
1675    bool
1676
1677config SYS_HAS_CPU_BMIPS5000
1678    bool
1679
1680config SYS_HAS_CPU_XLR
1681    bool
1682
1683config SYS_HAS_CPU_XLP
1684    bool
1685
1686#
1687# CPU may reorder R->R, R->W, W->R, W->W
1688# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1689#
1690config WEAK_ORDERING
1691    bool
1692
1693#
1694# CPU may reorder reads and writes beyond LL/SC
1695# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1696#
1697config WEAK_REORDERING_BEYOND_LLSC
1698    bool
1699endmenu
1700
1701#
1702# These two indicate any level of the MIPS32 and MIPS64 architecture
1703#
1704config CPU_MIPS32
1705    bool
1706    default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1707
1708config CPU_MIPS64
1709    bool
1710    default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1711
1712#
1713# These two indicate the revision of the architecture, either Release 1 or Release 2
1714#
1715config CPU_MIPSR1
1716    bool
1717    default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1718
1719config CPU_MIPSR2
1720    bool
1721    default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1722
1723config SYS_SUPPORTS_32BIT_KERNEL
1724    bool
1725config SYS_SUPPORTS_64BIT_KERNEL
1726    bool
1727config CPU_SUPPORTS_32BIT_KERNEL
1728    bool
1729config CPU_SUPPORTS_64BIT_KERNEL
1730    bool
1731config CPU_SUPPORTS_CPUFREQ
1732    bool
1733config CPU_SUPPORTS_ADDRWINCFG
1734    bool
1735config CPU_SUPPORTS_HUGEPAGES
1736    bool
1737config CPU_SUPPORTS_UNCACHED_ACCELERATED
1738    bool
1739config MIPS_PGD_C0_CONTEXT
1740    bool
1741    default y if 64BIT && CPU_MIPSR2
1742
1743#
1744# Set to y for ptrace access to watch registers.
1745#
1746config HARDWARE_WATCHPOINTS
1747       bool
1748       default y if CPU_MIPSR1 || CPU_MIPSR2
1749
1750menu "Kernel type"
1751
1752choice
1753
1754    prompt "Kernel code model"
1755    help
1756      You should only select this option if you have a workload that
1757      actually benefits from 64-bit processing or if your machine has
1758      large memory. You will only be presented a single option in this
1759      menu if your system does not support both 32-bit and 64-bit kernels.
1760
1761config 32BIT
1762    bool "32-bit kernel"
1763    depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1764    select TRAD_SIGNALS
1765    help
1766      Select this option if you want to build a 32-bit kernel.
1767config 64BIT
1768    bool "64-bit kernel"
1769    depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1770    select HAVE_SYSCALL_WRAPPERS
1771    help
1772      Select this option if you want to build a 64-bit kernel.
1773
1774endchoice
1775
1776choice
1777    prompt "Kernel page size"
1778    default PAGE_SIZE_4KB
1779
1780config PAGE_SIZE_4KB
1781    bool "4kB"
1782    depends on !CPU_LOONGSON2
1783    help
1784     This option select the standard 4kB Linux page size. On some
1785     R3000-family processors this is the only available page size. Using
1786     4kB page size will minimize memory consumption and is therefore
1787     recommended for low memory systems.
1788
1789config PAGE_SIZE_8KB
1790    bool "8kB"
1791    depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON
1792    help
1793      Using 8kB page size will result in higher performance kernel at
1794      the price of higher memory consumption. This option is available
1795      only on R8000 and cnMIPS processors. Note that you will need a
1796      suitable Linux distribution to support this.
1797
1798config PAGE_SIZE_16KB
1799    bool "16kB"
1800    depends on !CPU_R3000 && !CPU_TX39XX
1801    help
1802      Using 16kB page size will result in higher performance kernel at
1803      the price of higher memory consumption. This option is available on
1804      all non-R3000 family processors. Note that you will need a suitable
1805      Linux distribution to support this.
1806
1807config PAGE_SIZE_32KB
1808    bool "32kB"
1809    depends on CPU_CAVIUM_OCTEON
1810    help
1811      Using 32kB page size will result in higher performance kernel at
1812      the price of higher memory consumption. This option is available
1813      only on cnMIPS cores. Note that you will need a suitable Linux
1814      distribution to support this.
1815
1816config PAGE_SIZE_64KB
1817    bool "64kB"
1818    depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1819    help
1820      Using 64kB page size will result in higher performance kernel at
1821      the price of higher memory consumption. This option is available on
1822      all non-R3000 family processor. Not that at the time of this
1823      writing this option is still high experimental.
1824
1825endchoice
1826
1827config FORCE_MAX_ZONEORDER
1828    int "Maximum zone order"
1829    range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
1830    default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
1831    range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
1832    default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
1833    range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
1834    default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
1835    range 11 64
1836    default "11"
1837    help
1838      The kernel memory allocator divides physically contiguous memory
1839      blocks into "zones", where each zone is a power of two number of
1840      pages. This option selects the largest power of two that the kernel
1841      keeps in the memory allocator. If you need to allocate very large
1842      blocks of physically contiguous memory, then you may need to
1843      increase this value.
1844
1845      This config option is actually maximum order plus one. For example,
1846      a value of 11 means that the largest free memory block is 2^10 pages.
1847
1848      The page size is not necessarily 4KB. Keep this in mind
1849      when choosing a value for this option.
1850
1851config BOARD_SCACHE
1852    bool
1853
1854config IP22_CPU_SCACHE
1855    bool
1856    select BOARD_SCACHE
1857
1858#
1859# Support for a MIPS32 / MIPS64 style S-caches
1860#
1861config MIPS_CPU_SCACHE
1862    bool
1863    select BOARD_SCACHE
1864
1865config R5000_CPU_SCACHE
1866    bool
1867    select BOARD_SCACHE
1868
1869config RM7000_CPU_SCACHE
1870    bool
1871    select BOARD_SCACHE
1872
1873config SIBYTE_DMA_PAGEOPS
1874    bool "Use DMA to clear/copy pages"
1875    depends on CPU_SB1
1876    help
1877      Instead of using the CPU to zero and copy pages, use a Data Mover
1878      channel. These DMA channels are otherwise unused by the standard
1879      SiByte Linux port. Seems to give a small performance benefit.
1880
1881config CPU_HAS_PREFETCH
1882    bool
1883
1884choice
1885    prompt "MIPS MT options"
1886
1887config MIPS_MT_DISABLED
1888    bool "Disable multithreading support."
1889    help
1890      Use this option if your workload can't take advantage of
1891      MIPS hardware multithreading support. On systems that don't have
1892      the option of an MT-enabled processor this option will be the only
1893      option in this menu.
1894
1895config MIPS_MT_SMP
1896    bool "Use 1 TC on each available VPE for SMP"
1897    depends on SYS_SUPPORTS_MULTITHREADING
1898    select CPU_MIPSR2_IRQ_VI
1899    select CPU_MIPSR2_IRQ_EI
1900    select MIPS_MT
1901    select NR_CPUS_DEFAULT_2
1902    select SMP
1903    select SYS_SUPPORTS_SCHED_SMT if SMP
1904    select SYS_SUPPORTS_SMP
1905    select SMP_UP
1906    help
1907      This is a kernel model which is known a VSMP but lately has been
1908      marketesed into SMVP.
1909      Virtual SMP uses the processor's VPEs to implement virtual
1910      processors. In currently available configuration of the 34K processor
1911      this allows for a dual processor. Both processors will share the same
1912      primary caches; each will obtain the half of the TLB for it's own
1913      exclusive use. For a layman this model can be described as similar to
1914      what Intel calls Hyperthreading.
1915
1916      For further information see http://www.linux-mips.org/wiki/34K#VSMP
1917
1918config MIPS_MT_SMTC
1919    bool "SMTC: Use all TCs on all VPEs for SMP"
1920    depends on CPU_MIPS32_R2
1921    #depends on CPU_MIPS64_R2 # once there is hardware ...
1922    depends on SYS_SUPPORTS_MULTITHREADING
1923    select CPU_MIPSR2_IRQ_VI
1924    select CPU_MIPSR2_IRQ_EI
1925    select MIPS_MT
1926    select NR_CPUS_DEFAULT_8
1927    select SMP
1928    select SYS_SUPPORTS_SMP
1929    select SMP_UP
1930    help
1931      This is a kernel model which is known a SMTC or lately has been
1932      marketesed into SMVP.
1933      is presenting the available TC's of the core as processors to Linux.
1934      On currently available 34K processors this means a Linux system will
1935      see up to 5 processors. The implementation of the SMTC kernel differs
1936      significantly from VSMP and cannot efficiently coexist in the same
1937      kernel binary so the choice between VSMP and SMTC is a compile time
1938      decision.
1939
1940      For further information see http://www.linux-mips.org/wiki/34K#SMTC
1941
1942endchoice
1943
1944config MIPS_MT
1945    bool
1946
1947config SCHED_SMT
1948    bool "SMT (multithreading) scheduler support"
1949    depends on SYS_SUPPORTS_SCHED_SMT
1950    default n
1951    help
1952      SMT scheduler support improves the CPU scheduler's decision making
1953      when dealing with MIPS MT enabled cores at a cost of slightly
1954      increased overhead in some places. If unsure say N here.
1955
1956config SYS_SUPPORTS_SCHED_SMT
1957    bool
1958
1959
1960config SYS_SUPPORTS_MULTITHREADING
1961    bool
1962
1963config MIPS_MT_FPAFF
1964    bool "Dynamic FPU affinity for FP-intensive threads"
1965    default y
1966    depends on MIPS_MT_SMP || MIPS_MT_SMTC
1967
1968config MIPS_VPE_LOADER
1969    bool "VPE loader support."
1970    depends on SYS_SUPPORTS_MULTITHREADING
1971    select CPU_MIPSR2_IRQ_VI
1972    select CPU_MIPSR2_IRQ_EI
1973    select MIPS_MT
1974    help
1975      Includes a loader for loading an elf relocatable object
1976      onto another VPE and running it.
1977
1978config MIPS_MT_SMTC_IM_BACKSTOP
1979    bool "Use per-TC register bits as backstop for inhibited IM bits"
1980    depends on MIPS_MT_SMTC
1981    default n
1982    help
1983      To support multiple TC microthreads acting as "CPUs" within
1984      a VPE, VPE-wide interrupt mask bits must be specially manipulated
1985      during interrupt handling. To support legacy drivers and interrupt
1986      controller management code, SMTC has a "backstop" to track and
1987      if necessary restore the interrupt mask. This has some performance
1988      impact on interrupt service overhead.
1989
1990config MIPS_MT_SMTC_IRQAFF
1991    bool "Support IRQ affinity API"
1992    depends on MIPS_MT_SMTC
1993    default n
1994    help
1995      Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1996      for SMTC Linux kernel. Requires platform support, of which
1997      an example can be found in the MIPS kernel i8259 and Malta
1998      platform code. Adds some overhead to interrupt dispatch, and
1999      should be used only if you know what you are doing.
2000
2001config MIPS_VPE_LOADER_TOM
2002    bool "Load VPE program into memory hidden from linux"
2003    depends on MIPS_VPE_LOADER
2004    default y
2005    help
2006      The loader can use memory that is present but has been hidden from
2007      Linux using the kernel command line option "mem=xxMB". It's up to
2008      you to ensure the amount you put in the option and the space your
2009      program requires is less or equal to the amount physically present.
2010
2011# this should possibly be in drivers/char, but it is rather cpu related. Hmmm
2012config MIPS_VPE_APSP_API
2013    bool "Enable support for AP/SP API (RTLX)"
2014    depends on MIPS_VPE_LOADER
2015    help
2016
2017config MIPS_APSP_KSPD
2018    bool "Enable KSPD"
2019    depends on MIPS_VPE_APSP_API
2020    default y
2021    help
2022      KSPD is a kernel daemon that accepts syscall requests from the SP
2023      side, actions them and returns the results. It also handles the
2024      "exit" syscall notifying other kernel modules the SP program is
2025      exiting. You probably want to say yes here.
2026
2027config MIPS_CMP
2028    bool "MIPS CMP framework support"
2029    depends on SYS_SUPPORTS_MIPS_CMP
2030    select SYNC_R4K
2031    select SYS_SUPPORTS_SMP
2032    select SYS_SUPPORTS_SCHED_SMT if SMP
2033    select WEAK_ORDERING
2034    default n
2035    help
2036      This is a placeholder option for the GCMP work. It will need to
2037      be handled differently...
2038
2039config SB1_PASS_1_WORKAROUNDS
2040    bool
2041    depends on CPU_SB1_PASS_1
2042    default y
2043
2044config SB1_PASS_2_WORKAROUNDS
2045    bool
2046    depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2047    default y
2048
2049config SB1_PASS_2_1_WORKAROUNDS
2050    bool
2051    depends on CPU_SB1 && CPU_SB1_PASS_2
2052    default y
2053
2054config 64BIT_PHYS_ADDR
2055    bool
2056
2057config ARCH_PHYS_ADDR_T_64BIT
2058       def_bool 64BIT_PHYS_ADDR
2059
2060config CPU_HAS_SMARTMIPS
2061    depends on SYS_SUPPORTS_SMARTMIPS
2062    bool "Support for the SmartMIPS ASE"
2063    help
2064      SmartMIPS is a extension of the MIPS32 architecture aimed at
2065      increased security at both hardware and software level for
2066      smartcards. Enabling this option will allow proper use of the
2067      SmartMIPS instructions by Linux applications. However a kernel with
2068      this option will not work on a MIPS core without SmartMIPS core. If
2069      you don't know you probably don't have SmartMIPS and should say N
2070      here.
2071
2072config CPU_HAS_WB
2073    bool
2074
2075config XKS01
2076    bool
2077
2078#
2079# Vectored interrupt mode is an R2 feature
2080#
2081config CPU_MIPSR2_IRQ_VI
2082    bool
2083
2084#
2085# Extended interrupt mode is an R2 feature
2086#
2087config CPU_MIPSR2_IRQ_EI
2088    bool
2089
2090config CPU_HAS_SYNC
2091    bool
2092    depends on !CPU_R3000
2093    default y
2094
2095#
2096# CPU non-features
2097#
2098config CPU_DADDI_WORKAROUNDS
2099    bool
2100
2101config CPU_R4000_WORKAROUNDS
2102    bool
2103    select CPU_R4400_WORKAROUNDS
2104
2105config CPU_R4400_WORKAROUNDS
2106    bool
2107
2108#
2109# - Highmem only makes sense for the 32-bit kernel.
2110# - The current highmem code will only work properly on physically indexed
2111# caches such as R3000, SB1, R7000 or those that look like they're virtually
2112# indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2113# moment we protect the user and offer the highmem option only on machines
2114# where it's known to be safe. This will not offer highmem on a few systems
2115# such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2116# indexed CPUs but we're playing safe.
2117# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2118# know they might have memory configurations that could make use of highmem
2119# support.
2120#
2121config HIGHMEM
2122    bool "High Memory Support"
2123    depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
2124
2125config CPU_SUPPORTS_HIGHMEM
2126    bool
2127
2128config SYS_SUPPORTS_HIGHMEM
2129    bool
2130
2131config SYS_SUPPORTS_SMARTMIPS
2132    bool
2133
2134config ARCH_FLATMEM_ENABLE
2135    def_bool y
2136    depends on !NUMA && !CPU_LOONGSON2
2137
2138config ARCH_DISCONTIGMEM_ENABLE
2139    bool
2140    default y if SGI_IP27
2141    help
2142      Say Y to support efficient handling of discontiguous physical memory,
2143      for architectures which are either NUMA (Non-Uniform Memory Access)
2144      or have huge holes in the physical address space for other reasons.
2145      See <file:Documentation/vm/numa> for more.
2146
2147config ARCH_SPARSEMEM_ENABLE
2148    bool
2149    select SPARSEMEM_STATIC
2150
2151config NUMA
2152    bool "NUMA Support"
2153    depends on SYS_SUPPORTS_NUMA
2154    help
2155      Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2156      Access). This option improves performance on systems with more
2157      than two nodes; on two node systems it is generally better to
2158      leave it disabled; on single node systems disable this option
2159      disabled.
2160
2161config SYS_SUPPORTS_NUMA
2162    bool
2163
2164config NODES_SHIFT
2165    int
2166    default "6"
2167    depends on NEED_MULTIPLE_NODES
2168
2169config HW_PERF_EVENTS
2170    bool "Enable hardware performance counter support for perf events"
2171    depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON)
2172    default y
2173    help
2174      Enable hardware performance counter support for perf events. If
2175      disabled, perf events will use software events only.
2176
2177source "mm/Kconfig"
2178
2179config SMP
2180    bool "Multi-Processing support"
2181    depends on SYS_SUPPORTS_SMP
2182    select IRQ_PER_CPU
2183    select USE_GENERIC_SMP_HELPERS
2184    help
2185      This enables support for systems with more than one CPU. If you have
2186      a system with only one CPU, like most personal computers, say N. If
2187      you have a system with more than one CPU, say Y.
2188
2189      If you say N here, the kernel will run on single and multiprocessor
2190      machines, but will use only one CPU of a multiprocessor machine. If
2191      you say Y here, the kernel will run on many, but not all,
2192      singleprocessor machines. On a singleprocessor machine, the kernel
2193      will run faster if you say N here.
2194
2195      People using multiprocessor machines who say Y here should also say
2196      Y to "Enhanced Real Time Clock Support", below.
2197
2198      See also the SMP-HOWTO available at
2199      <http://www.tldp.org/docs.html#howto>.
2200
2201      If you don't know what to do here, say N.
2202
2203config SMP_UP
2204    bool
2205
2206config SYS_SUPPORTS_MIPS_CMP
2207    bool
2208
2209config SYS_SUPPORTS_SMP
2210    bool
2211
2212config NR_CPUS_DEFAULT_1
2213    bool
2214
2215config NR_CPUS_DEFAULT_2
2216    bool
2217
2218config NR_CPUS_DEFAULT_4
2219    bool
2220
2221config NR_CPUS_DEFAULT_8
2222    bool
2223
2224config NR_CPUS_DEFAULT_16
2225    bool
2226
2227config NR_CPUS_DEFAULT_32
2228    bool
2229
2230config NR_CPUS_DEFAULT_64
2231    bool
2232
2233config NR_CPUS
2234    int "Maximum number of CPUs (2-64)"
2235    range 1 64 if NR_CPUS_DEFAULT_1
2236    depends on SMP
2237    default "1" if NR_CPUS_DEFAULT_1
2238    default "2" if NR_CPUS_DEFAULT_2
2239    default "4" if NR_CPUS_DEFAULT_4
2240    default "8" if NR_CPUS_DEFAULT_8
2241    default "16" if NR_CPUS_DEFAULT_16
2242    default "32" if NR_CPUS_DEFAULT_32
2243    default "64" if NR_CPUS_DEFAULT_64
2244    help
2245      This allows you to specify the maximum number of CPUs which this
2246      kernel will support. The maximum supported value is 32 for 32-bit
2247      kernel and 64 for 64-bit kernels; the minimum value which makes
2248      sense is 1 for Qemu (useful only for kernel debugging purposes)
2249      and 2 for all others.
2250
2251      This is purely to save memory - each supported CPU adds
2252      approximately eight kilobytes to the kernel image. For best
2253      performance should round up your number of processors to the next
2254      power of two.
2255
2256#
2257# Timer Interrupt Frequency Configuration
2258#
2259
2260choice
2261    prompt "Timer frequency"
2262    default HZ_250
2263    help
2264     Allows the configuration of the timer frequency.
2265
2266    config HZ_48
2267        bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2268
2269    config HZ_100
2270        bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2271
2272    config HZ_128
2273        bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2274
2275    config HZ_250
2276        bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2277
2278    config HZ_256
2279        bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2280
2281    config HZ_1000
2282        bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2283
2284    config HZ_1024
2285        bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2286
2287endchoice
2288
2289config SYS_SUPPORTS_48HZ
2290    bool
2291
2292config SYS_SUPPORTS_100HZ
2293    bool
2294
2295config SYS_SUPPORTS_128HZ
2296    bool
2297
2298config SYS_SUPPORTS_250HZ
2299    bool
2300
2301config SYS_SUPPORTS_256HZ
2302    bool
2303
2304config SYS_SUPPORTS_1000HZ
2305    bool
2306
2307config SYS_SUPPORTS_1024HZ
2308    bool
2309
2310config SYS_SUPPORTS_ARBIT_HZ
2311    bool
2312    default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2313             !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2314             !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2315             !SYS_SUPPORTS_1024HZ
2316
2317config HZ
2318    int
2319    default 48 if HZ_48
2320    default 100 if HZ_100
2321    default 128 if HZ_128
2322    default 250 if HZ_250
2323    default 256 if HZ_256
2324    default 1000 if HZ_1000
2325    default 1024 if HZ_1024
2326
2327source "kernel/Kconfig.preempt"
2328
2329config KEXEC
2330    bool "Kexec system call (EXPERIMENTAL)"
2331    depends on EXPERIMENTAL
2332    help
2333      kexec is a system call that implements the ability to shutdown your
2334      current kernel, and to start another kernel. It is like a reboot
2335      but it is independent of the system firmware. And like a reboot
2336      you can start any kernel with it, not just Linux.
2337
2338      The name comes from the similarity to the exec system call.
2339
2340      It is an ongoing process to be certain the hardware in a machine
2341      is properly shutdown, so do not be surprised if this code does not
2342      initially work for you. It may help to enable device hotplugging
2343      support. As of this writing the exact hardware interface is
2344      strongly in flux, so no good recommendation can be made.
2345
2346config SECCOMP
2347    bool "Enable seccomp to safely compute untrusted bytecode"
2348    depends on PROC_FS
2349    default y
2350    help
2351      This kernel feature is useful for number crunching applications
2352      that may need to compute untrusted bytecode during their
2353      execution. By using pipes or other transports made available to
2354      the process as file descriptors supporting the read/write
2355      syscalls, it's possible to isolate those applications in
2356      their own address space using seccomp. Once seccomp is
2357      enabled via /proc/<pid>/seccomp, it cannot be disabled
2358      and the task is only allowed to execute a few safe syscalls
2359      defined by each seccomp mode.
2360
2361      If unsure, say Y. Only embedded should say N here.
2362
2363config USE_OF
2364    bool "Flattened Device Tree support"
2365    select OF
2366    select OF_EARLY_FLATTREE
2367    select IRQ_DOMAIN
2368    help
2369      Include support for flattened device tree machine descriptions.
2370
2371endmenu
2372
2373config LOCKDEP_SUPPORT
2374    bool
2375    default y
2376
2377config STACKTRACE_SUPPORT
2378    bool
2379    default y
2380
2381source "init/Kconfig"
2382
2383source "kernel/Kconfig.freezer"
2384
2385menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2386
2387config HW_HAS_EISA
2388    bool
2389config HW_HAS_PCI
2390    bool
2391
2392config PCI
2393    bool "Support for PCI controller"
2394    depends on HW_HAS_PCI
2395    select PCI_DOMAINS
2396    select GENERIC_PCI_IOMAP
2397    select NO_GENERIC_PCI_IOPORT_MAP
2398    help
2399      Find out whether you have a PCI motherboard. PCI is the name of a
2400      bus system, i.e. the way the CPU talks to the other stuff inside
2401      your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2402      say Y, otherwise N.
2403
2404config PCI_DOMAINS
2405    bool
2406
2407source "drivers/pci/Kconfig"
2408
2409source "drivers/pci/pcie/Kconfig"
2410
2411#
2412# ISA support is now enabled via select. Too many systems still have the one
2413# or other ISA chip on the board that users don't know about so don't expect
2414# users to choose the right thing ...
2415#
2416config ISA
2417    bool
2418
2419config EISA
2420    bool "EISA support"
2421    depends on HW_HAS_EISA
2422    select ISA
2423    select GENERIC_ISA_DMA
2424    ---help---
2425      The Extended Industry Standard Architecture (EISA) bus was
2426      developed as an open alternative to the IBM MicroChannel bus.
2427
2428      The EISA bus provided some of the features of the IBM MicroChannel
2429      bus while maintaining backward compatibility with cards made for
2430      the older ISA bus. The EISA bus saw limited use between 1988 and
2431      1995 when it was made obsolete by the PCI bus.
2432
2433      Say Y here if you are building a kernel for an EISA-based machine.
2434
2435      Otherwise, say N.
2436
2437source "drivers/eisa/Kconfig"
2438
2439config TC
2440    bool "TURBOchannel support"
2441    depends on MACH_DECSTATION
2442    help
2443      TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2444      processors. TURBOchannel programming specifications are available
2445      at:
2446      <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2447      and:
2448      <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2449      Linux driver support status is documented at:
2450      <http://www.linux-mips.org/wiki/DECstation>
2451
2452config MMU
2453    bool
2454    default y
2455
2456config I8253
2457    bool
2458    select CLKSRC_I8253
2459    select CLKEVT_I8253
2460    select MIPS_EXTERNAL_TIMER
2461
2462config ZONE_DMA32
2463    bool
2464
2465source "drivers/pcmcia/Kconfig"
2466
2467source "drivers/pci/hotplug/Kconfig"
2468
2469config RAPIDIO
2470    bool "RapidIO support"
2471    depends on PCI
2472    default n
2473    help
2474      If you say Y here, the kernel will include drivers and
2475      infrastructure code to support RapidIO interconnect devices.
2476
2477source "drivers/rapidio/Kconfig"
2478
2479endmenu
2480
2481menu "Executable file formats"
2482
2483source "fs/Kconfig.binfmt"
2484
2485config TRAD_SIGNALS
2486    bool
2487
2488config MIPS32_COMPAT
2489    bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2490    depends on 64BIT
2491    help
2492      Select this option if you want Linux/MIPS 32-bit binary
2493      compatibility. Since all software available for Linux/MIPS is
2494      currently 32-bit you should say Y here.
2495
2496config COMPAT
2497    bool
2498    depends on MIPS32_COMPAT
2499    select ARCH_WANT_OLD_COMPAT_IPC
2500    default y
2501
2502config SYSVIPC_COMPAT
2503    bool
2504    depends on COMPAT && SYSVIPC
2505    default y
2506
2507config MIPS32_O32
2508    bool "Kernel support for o32 binaries"
2509    depends on MIPS32_COMPAT
2510    help
2511      Select this option if you want to run o32 binaries. These are pure
2512      32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2513      existing binaries are in this format.
2514
2515      If unsure, say Y.
2516
2517config MIPS32_N32
2518    bool "Kernel support for n32 binaries"
2519    depends on MIPS32_COMPAT
2520    help
2521      Select this option if you want to run n32 binaries. These are
2522      64-bit binaries using 32-bit quantities for addressing and certain
2523      data that would normally be 64-bit. They are used in special
2524      cases.
2525
2526      If unsure, say N.
2527
2528config BINFMT_ELF32
2529    bool
2530    default y if MIPS32_O32 || MIPS32_N32
2531
2532endmenu
2533
2534menu "Power management options"
2535
2536config ARCH_HIBERNATION_POSSIBLE
2537    def_bool y
2538    depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2539
2540config ARCH_SUSPEND_POSSIBLE
2541    def_bool y
2542    depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2543
2544source "kernel/power/Kconfig"
2545
2546endmenu
2547
2548source "arch/mips/kernel/cpufreq/Kconfig"
2549
2550source "net/Kconfig"
2551
2552source "drivers/Kconfig"
2553
2554source "fs/Kconfig"
2555
2556source "arch/mips/Kconfig.debug"
2557
2558source "security/Kconfig"
2559
2560source "crypto/Kconfig"
2561
2562source "lib/Kconfig"
2563

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