ARM: shmobile: force enable of r8a7790 arch timer
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / arch / mips / Kconfig
1 config MIPS
2 bool
3 default y
4 select HAVE_GENERIC_DMA_COHERENT
5 select HAVE_IDE
6 select HAVE_OPROFILE
7 select HAVE_PERF_EVENTS
8 select PERF_USE_VMALLOC
9 select HAVE_ARCH_KGDB
10 select ARCH_HAVE_CUSTOM_GPIO_H
11 select HAVE_FUNCTION_TRACER
12 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
13 select HAVE_DYNAMIC_FTRACE
14 select HAVE_FTRACE_MCOUNT_RECORD
15 select HAVE_C_RECORDMCOUNT
16 select HAVE_FUNCTION_GRAPH_TRACER
17 select HAVE_KPROBES
18 select HAVE_KRETPROBES
19 select HAVE_DEBUG_KMEMLEAK
20 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
21 select HAVE_ARCH_TRANSPARENT_HUGEPAGE
22 select RTC_LIB if !MACH_LOONGSON
23 select GENERIC_ATOMIC64 if !64BIT
24 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
25 select HAVE_DMA_ATTRS
26 select HAVE_DMA_API_DEBUG
27 select HAVE_GENERIC_HARDIRQS
28 select GENERIC_IRQ_PROBE
29 select GENERIC_IRQ_SHOW
30 select HAVE_ARCH_JUMP_LABEL
31 select ARCH_WANT_IPC_PARSE_VERSION
32 select IRQ_FORCED_THREADING
33 select HAVE_MEMBLOCK
34 select HAVE_MEMBLOCK_NODE_MAP
35 select ARCH_DISCARD_MEMBLOCK
36 select GENERIC_SMP_IDLE_THREAD
37 select BUILDTIME_EXTABLE_SORT
38 select GENERIC_CLOCKEVENTS
39 select GENERIC_CMOS_UPDATE
40 select HAVE_MOD_ARCH_SPECIFIC
41 select HAVE_VIRT_TO_BUS
42 select MODULES_USE_ELF_REL if MODULES
43 select MODULES_USE_ELF_RELA if MODULES && 64BIT
44 select CLONE_BACKWARDS
45
46 menu "Machine selection"
47
48 config ZONE_DMA
49 bool
50
51 choice
52 prompt "System type"
53 default SGI_IP22
54
55 config MIPS_ALCHEMY
56 bool "Alchemy processor based machines"
57 select 64BIT_PHYS_ADDR
58 select CEVT_R4K
59 select CSRC_R4K
60 select IRQ_CPU
61 select SYS_HAS_CPU_MIPS32_R1
62 select SYS_SUPPORTS_32BIT_KERNEL
63 select SYS_SUPPORTS_APM_EMULATION
64 select GENERIC_GPIO
65 select ARCH_WANT_OPTIONAL_GPIOLIB
66 select SYS_SUPPORTS_ZBOOT
67 select USB_ARCH_HAS_OHCI
68 select USB_ARCH_HAS_EHCI
69
70 config AR7
71 bool "Texas Instruments AR7"
72 select BOOT_ELF32
73 select DMA_NONCOHERENT
74 select CEVT_R4K
75 select CSRC_R4K
76 select IRQ_CPU
77 select NO_EXCEPT_FILL
78 select SWAP_IO_SPACE
79 select SYS_HAS_CPU_MIPS32_R1
80 select SYS_HAS_EARLY_PRINTK
81 select SYS_SUPPORTS_32BIT_KERNEL
82 select SYS_SUPPORTS_LITTLE_ENDIAN
83 select SYS_SUPPORTS_ZBOOT_UART16550
84 select ARCH_REQUIRE_GPIOLIB
85 select VLYNQ
86 select HAVE_CLK
87 help
88 Support for the Texas Instruments AR7 System-on-a-Chip
89 family: TNETD7100, 7200 and 7300.
90
91 config ATH79
92 bool "Atheros AR71XX/AR724X/AR913X based boards"
93 select ARCH_REQUIRE_GPIOLIB
94 select BOOT_RAW
95 select CEVT_R4K
96 select CSRC_R4K
97 select DMA_NONCOHERENT
98 select HAVE_CLK
99 select IRQ_CPU
100 select MIPS_MACHINE
101 select SYS_HAS_CPU_MIPS32_R2
102 select SYS_HAS_EARLY_PRINTK
103 select SYS_SUPPORTS_32BIT_KERNEL
104 select SYS_SUPPORTS_BIG_ENDIAN
105 help
106 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
107
108 config BCM47XX
109 bool "Broadcom BCM47XX based boards"
110 select ARCH_WANT_OPTIONAL_GPIOLIB
111 select BOOT_RAW
112 select CEVT_R4K
113 select CSRC_R4K
114 select DMA_NONCOHERENT
115 select FW_CFE
116 select HW_HAS_PCI
117 select IRQ_CPU
118 select NO_EXCEPT_FILL
119 select SYS_SUPPORTS_32BIT_KERNEL
120 select SYS_SUPPORTS_LITTLE_ENDIAN
121 select SYS_HAS_EARLY_PRINTK
122 help
123 Support for BCM47XX based boards
124
125 config BCM63XX
126 bool "Broadcom BCM63XX based boards"
127 select CEVT_R4K
128 select CSRC_R4K
129 select DMA_NONCOHERENT
130 select IRQ_CPU
131 select SYS_HAS_CPU_MIPS32_R1
132 select SYS_SUPPORTS_32BIT_KERNEL
133 select SYS_SUPPORTS_BIG_ENDIAN
134 select SYS_HAS_EARLY_PRINTK
135 select SWAP_IO_SPACE
136 select ARCH_REQUIRE_GPIOLIB
137 select HAVE_CLK
138 help
139 Support for BCM63XX based boards
140
141 config MIPS_COBALT
142 bool "Cobalt Server"
143 select CEVT_R4K
144 select CSRC_R4K
145 select CEVT_GT641XX
146 select DMA_NONCOHERENT
147 select HW_HAS_PCI
148 select I8253
149 select I8259
150 select IRQ_CPU
151 select IRQ_GT641XX
152 select PCI_GT64XXX_PCI0
153 select PCI
154 select SYS_HAS_CPU_NEVADA
155 select SYS_HAS_EARLY_PRINTK
156 select SYS_SUPPORTS_32BIT_KERNEL
157 select SYS_SUPPORTS_64BIT_KERNEL
158 select SYS_SUPPORTS_LITTLE_ENDIAN
159
160 config MACH_DECSTATION
161 bool "DECstations"
162 select BOOT_ELF32
163 select CEVT_DS1287
164 select CEVT_R4K
165 select CSRC_IOASIC
166 select CSRC_R4K
167 select CPU_DADDI_WORKAROUNDS if 64BIT
168 select CPU_R4000_WORKAROUNDS if 64BIT
169 select CPU_R4400_WORKAROUNDS if 64BIT
170 select DMA_NONCOHERENT
171 select NO_IOPORT
172 select IRQ_CPU
173 select SYS_HAS_CPU_R3000
174 select SYS_HAS_CPU_R4X00
175 select SYS_SUPPORTS_32BIT_KERNEL
176 select SYS_SUPPORTS_64BIT_KERNEL
177 select SYS_SUPPORTS_LITTLE_ENDIAN
178 select SYS_SUPPORTS_128HZ
179 select SYS_SUPPORTS_256HZ
180 select SYS_SUPPORTS_1024HZ
181 help
182 This enables support for DEC's MIPS based workstations. For details
183 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
184 DECstation porting pages on <http://decstation.unix-ag.org/>.
185
186 If you have one of the following DECstation Models you definitely
187 want to choose R4xx0 for the CPU Type:
188
189 DECstation 5000/50
190 DECstation 5000/150
191 DECstation 5000/260
192 DECsystem 5900/260
193
194 otherwise choose R3000.
195
196 config MACH_JAZZ
197 bool "Jazz family of machines"
198 select FW_ARC
199 select FW_ARC32
200 select ARCH_MAY_HAVE_PC_FDC
201 select CEVT_R4K
202 select CSRC_R4K
203 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
204 select GENERIC_ISA_DMA
205 select HAVE_PCSPKR_PLATFORM
206 select IRQ_CPU
207 select I8253
208 select I8259
209 select ISA
210 select SYS_HAS_CPU_R4X00
211 select SYS_SUPPORTS_32BIT_KERNEL
212 select SYS_SUPPORTS_64BIT_KERNEL
213 select SYS_SUPPORTS_100HZ
214 help
215 This a family of machines based on the MIPS R4030 chipset which was
216 used by several vendors to build RISC/os and Windows NT workstations.
217 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
218 Olivetti M700-10 workstations.
219
220 config MACH_JZ4740
221 bool "Ingenic JZ4740 based machines"
222 select SYS_HAS_CPU_MIPS32_R1
223 select SYS_SUPPORTS_32BIT_KERNEL
224 select SYS_SUPPORTS_LITTLE_ENDIAN
225 select SYS_SUPPORTS_ZBOOT_UART16550
226 select DMA_NONCOHERENT
227 select IRQ_CPU
228 select GENERIC_GPIO
229 select ARCH_REQUIRE_GPIOLIB
230 select SYS_HAS_EARLY_PRINTK
231 select HAVE_PWM
232 select HAVE_CLK
233 select GENERIC_IRQ_CHIP
234
235 config LANTIQ
236 bool "Lantiq based platforms"
237 select DMA_NONCOHERENT
238 select IRQ_CPU
239 select CEVT_R4K
240 select CSRC_R4K
241 select SYS_HAS_CPU_MIPS32_R1
242 select SYS_HAS_CPU_MIPS32_R2
243 select SYS_SUPPORTS_BIG_ENDIAN
244 select SYS_SUPPORTS_32BIT_KERNEL
245 select SYS_SUPPORTS_MULTITHREADING
246 select SYS_HAS_EARLY_PRINTK
247 select ARCH_REQUIRE_GPIOLIB
248 select SWAP_IO_SPACE
249 select BOOT_RAW
250 select HAVE_MACH_CLKDEV
251 select CLKDEV_LOOKUP
252 select USE_OF
253 select PINCTRL
254 select PINCTRL_LANTIQ
255
256 config LASAT
257 bool "LASAT Networks platforms"
258 select CEVT_R4K
259 select CSRC_R4K
260 select DMA_NONCOHERENT
261 select SYS_HAS_EARLY_PRINTK
262 select HW_HAS_PCI
263 select IRQ_CPU
264 select PCI_GT64XXX_PCI0
265 select MIPS_NILE4
266 select R5000_CPU_SCACHE
267 select SYS_HAS_CPU_R5000
268 select SYS_SUPPORTS_32BIT_KERNEL
269 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
270 select SYS_SUPPORTS_LITTLE_ENDIAN
271
272 config MACH_LOONGSON
273 bool "Loongson family of machines"
274 select SYS_SUPPORTS_ZBOOT
275 help
276 This enables the support of Loongson family of machines.
277
278 Loongson is a family of general-purpose MIPS-compatible CPUs.
279 developed at Institute of Computing Technology (ICT),
280 Chinese Academy of Sciences (CAS) in the People's Republic
281 of China. The chief architect is Professor Weiwu Hu.
282
283 config MACH_LOONGSON1
284 bool "Loongson 1 family of machines"
285 select SYS_SUPPORTS_ZBOOT
286 help
287 This enables support for the Loongson 1 based machines.
288
289 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
290 the ICT (Institute of Computing Technology) and the Chinese Academy
291 of Sciences.
292
293 config MIPS_MALTA
294 bool "MIPS Malta board"
295 select ARCH_MAY_HAVE_PC_FDC
296 select BOOT_ELF32
297 select BOOT_RAW
298 select CEVT_R4K
299 select CSRC_R4K
300 select CSRC_GIC
301 select DMA_NONCOHERENT
302 select GENERIC_ISA_DMA
303 select HAVE_PCSPKR_PLATFORM
304 select IRQ_CPU
305 select IRQ_GIC
306 select HW_HAS_PCI
307 select I8253
308 select I8259
309 select MIPS_BOARDS_GEN
310 select MIPS_BONITO64
311 select MIPS_CPU_SCACHE
312 select PCI_GT64XXX_PCI0
313 select MIPS_MSC
314 select SWAP_IO_SPACE
315 select SYS_HAS_CPU_MIPS32_R1
316 select SYS_HAS_CPU_MIPS32_R2
317 select SYS_HAS_CPU_MIPS64_R1
318 select SYS_HAS_CPU_MIPS64_R2
319 select SYS_HAS_CPU_NEVADA
320 select SYS_HAS_CPU_RM7000
321 select SYS_HAS_EARLY_PRINTK
322 select SYS_SUPPORTS_32BIT_KERNEL
323 select SYS_SUPPORTS_64BIT_KERNEL
324 select SYS_SUPPORTS_BIG_ENDIAN
325 select SYS_SUPPORTS_LITTLE_ENDIAN
326 select SYS_SUPPORTS_MIPS_CMP
327 select SYS_SUPPORTS_MULTITHREADING
328 select SYS_SUPPORTS_SMARTMIPS
329 select SYS_SUPPORTS_ZBOOT
330 help
331 This enables support for the MIPS Technologies Malta evaluation
332 board.
333
334 config MIPS_SEAD3
335 bool "MIPS SEAD3 board"
336 select BOOT_ELF32
337 select BOOT_RAW
338 select CEVT_R4K
339 select CSRC_R4K
340 select CPU_MIPSR2_IRQ_VI
341 select CPU_MIPSR2_IRQ_EI
342 select DMA_NONCOHERENT
343 select IRQ_CPU
344 select IRQ_GIC
345 select MIPS_BOARDS_GEN
346 select MIPS_CPU_SCACHE
347 select MIPS_MSC
348 select SYS_HAS_CPU_MIPS32_R1
349 select SYS_HAS_CPU_MIPS32_R2
350 select SYS_HAS_CPU_MIPS64_R1
351 select SYS_HAS_EARLY_PRINTK
352 select SYS_SUPPORTS_32BIT_KERNEL
353 select SYS_SUPPORTS_64BIT_KERNEL
354 select SYS_SUPPORTS_BIG_ENDIAN
355 select SYS_SUPPORTS_LITTLE_ENDIAN
356 select SYS_SUPPORTS_SMARTMIPS
357 select USB_ARCH_HAS_EHCI
358 select USB_EHCI_BIG_ENDIAN_DESC
359 select USB_EHCI_BIG_ENDIAN_MMIO
360 select USE_OF
361 help
362 This enables support for the MIPS Technologies SEAD3 evaluation
363 board.
364
365 config NEC_MARKEINS
366 bool "NEC EMMA2RH Mark-eins board"
367 select SOC_EMMA2RH
368 select HW_HAS_PCI
369 help
370 This enables support for the NEC Electronics Mark-eins boards.
371
372 config MACH_VR41XX
373 bool "NEC VR4100 series based machines"
374 select CEVT_R4K
375 select CSRC_R4K
376 select SYS_HAS_CPU_VR41XX
377 select ARCH_REQUIRE_GPIOLIB
378
379 config NXP_STB220
380 bool "NXP STB220 board"
381 select SOC_PNX833X
382 help
383 Support for NXP Semiconductors STB220 Development Board.
384
385 config NXP_STB225
386 bool "NXP 225 board"
387 select SOC_PNX833X
388 select SOC_PNX8335
389 help
390 Support for NXP Semiconductors STB225 Development Board.
391
392 config PMC_MSP
393 bool "PMC-Sierra MSP chipsets"
394 select CEVT_R4K
395 select CSRC_R4K
396 select DMA_NONCOHERENT
397 select SWAP_IO_SPACE
398 select NO_EXCEPT_FILL
399 select BOOT_RAW
400 select SYS_HAS_CPU_MIPS32_R1
401 select SYS_HAS_CPU_MIPS32_R2
402 select SYS_SUPPORTS_32BIT_KERNEL
403 select SYS_SUPPORTS_BIG_ENDIAN
404 select IRQ_CPU
405 select SERIAL_8250
406 select SERIAL_8250_CONSOLE
407 help
408 This adds support for the PMC-Sierra family of Multi-Service
409 Processor System-On-A-Chips. These parts include a number
410 of integrated peripherals, interfaces and DSPs in addition to
411 a variety of MIPS cores.
412
413 config POWERTV
414 bool "Cisco PowerTV"
415 select BOOT_ELF32
416 select CEVT_R4K
417 select CPU_MIPSR2_IRQ_VI
418 select CPU_MIPSR2_IRQ_EI
419 select CSRC_POWERTV
420 select DMA_NONCOHERENT
421 select HW_HAS_PCI
422 select SYS_HAS_EARLY_PRINTK
423 select SYS_HAS_CPU_MIPS32_R2
424 select SYS_SUPPORTS_32BIT_KERNEL
425 select SYS_SUPPORTS_BIG_ENDIAN
426 select SYS_SUPPORTS_HIGHMEM
427 select USB_OHCI_LITTLE_ENDIAN
428 help
429 This enables support for the Cisco PowerTV Platform.
430
431 config RALINK
432 bool "Ralink based machines"
433 select CEVT_R4K
434 select CSRC_R4K
435 select BOOT_RAW
436 select DMA_NONCOHERENT
437 select IRQ_CPU
438 select USE_OF
439 select SYS_HAS_CPU_MIPS32_R1
440 select SYS_HAS_CPU_MIPS32_R2
441 select SYS_SUPPORTS_32BIT_KERNEL
442 select SYS_SUPPORTS_LITTLE_ENDIAN
443 select SYS_HAS_EARLY_PRINTK
444 select HAVE_MACH_CLKDEV
445 select CLKDEV_LOOKUP
446
447 config SGI_IP22
448 bool "SGI IP22 (Indy/Indigo2)"
449 select FW_ARC
450 select FW_ARC32
451 select BOOT_ELF32
452 select CEVT_R4K
453 select CSRC_R4K
454 select DEFAULT_SGI_PARTITION
455 select DMA_NONCOHERENT
456 select HW_HAS_EISA
457 select I8253
458 select I8259
459 select IP22_CPU_SCACHE
460 select IRQ_CPU
461 select GENERIC_ISA_DMA_SUPPORT_BROKEN
462 select SGI_HAS_I8042
463 select SGI_HAS_INDYDOG
464 select SGI_HAS_HAL2
465 select SGI_HAS_SEEQ
466 select SGI_HAS_WD93
467 select SGI_HAS_ZILOG
468 select SWAP_IO_SPACE
469 select SYS_HAS_CPU_R4X00
470 select SYS_HAS_CPU_R5000
471 #
472 # Disable EARLY_PRINTK for now since it leads to overwritten prom
473 # memory during early boot on some machines.
474 #
475 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
476 # for a more details discussion
477 #
478 # select SYS_HAS_EARLY_PRINTK
479 select SYS_SUPPORTS_32BIT_KERNEL
480 select SYS_SUPPORTS_64BIT_KERNEL
481 select SYS_SUPPORTS_BIG_ENDIAN
482 help
483 This are the SGI Indy, Challenge S and Indigo2, as well as certain
484 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
485 that runs on these, say Y here.
486
487 config SGI_IP27
488 bool "SGI IP27 (Origin200/2000)"
489 select FW_ARC
490 select FW_ARC64
491 select BOOT_ELF64
492 select DEFAULT_SGI_PARTITION
493 select DMA_COHERENT
494 select SYS_HAS_EARLY_PRINTK
495 select HW_HAS_PCI
496 select NR_CPUS_DEFAULT_64
497 select SYS_HAS_CPU_R10000
498 select SYS_SUPPORTS_64BIT_KERNEL
499 select SYS_SUPPORTS_BIG_ENDIAN
500 select SYS_SUPPORTS_NUMA
501 select SYS_SUPPORTS_SMP
502 help
503 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
504 workstations. To compile a Linux kernel that runs on these, say Y
505 here.
506
507 config SGI_IP28
508 bool "SGI IP28 (Indigo2 R10k)"
509 select FW_ARC
510 select FW_ARC64
511 select BOOT_ELF64
512 select CEVT_R4K
513 select CSRC_R4K
514 select DEFAULT_SGI_PARTITION
515 select DMA_NONCOHERENT
516 select GENERIC_ISA_DMA_SUPPORT_BROKEN
517 select IRQ_CPU
518 select HW_HAS_EISA
519 select I8253
520 select I8259
521 select SGI_HAS_I8042
522 select SGI_HAS_INDYDOG
523 select SGI_HAS_HAL2
524 select SGI_HAS_SEEQ
525 select SGI_HAS_WD93
526 select SGI_HAS_ZILOG
527 select SWAP_IO_SPACE
528 select SYS_HAS_CPU_R10000
529 #
530 # Disable EARLY_PRINTK for now since it leads to overwritten prom
531 # memory during early boot on some machines.
532 #
533 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
534 # for a more details discussion
535 #
536 # select SYS_HAS_EARLY_PRINTK
537 select SYS_SUPPORTS_64BIT_KERNEL
538 select SYS_SUPPORTS_BIG_ENDIAN
539 help
540 This is the SGI Indigo2 with R10000 processor. To compile a Linux
541 kernel that runs on these, say Y here.
542
543 config SGI_IP32
544 bool "SGI IP32 (O2)"
545 select FW_ARC
546 select FW_ARC32
547 select BOOT_ELF32
548 select CEVT_R4K
549 select CSRC_R4K
550 select DMA_NONCOHERENT
551 select HW_HAS_PCI
552 select IRQ_CPU
553 select R5000_CPU_SCACHE
554 select RM7000_CPU_SCACHE
555 select SYS_HAS_CPU_R5000
556 select SYS_HAS_CPU_R10000 if BROKEN
557 select SYS_HAS_CPU_RM7000
558 select SYS_HAS_CPU_NEVADA
559 select SYS_SUPPORTS_64BIT_KERNEL
560 select SYS_SUPPORTS_BIG_ENDIAN
561 help
562 If you want this kernel to run on SGI O2 workstation, say Y here.
563
564 config SIBYTE_CRHINE
565 bool "Sibyte BCM91120C-CRhine"
566 select BOOT_ELF32
567 select DMA_COHERENT
568 select SIBYTE_BCM1120
569 select SWAP_IO_SPACE
570 select SYS_HAS_CPU_SB1
571 select SYS_SUPPORTS_BIG_ENDIAN
572 select SYS_SUPPORTS_LITTLE_ENDIAN
573
574 config SIBYTE_CARMEL
575 bool "Sibyte BCM91120x-Carmel"
576 select BOOT_ELF32
577 select DMA_COHERENT
578 select SIBYTE_BCM1120
579 select SWAP_IO_SPACE
580 select SYS_HAS_CPU_SB1
581 select SYS_SUPPORTS_BIG_ENDIAN
582 select SYS_SUPPORTS_LITTLE_ENDIAN
583
584 config SIBYTE_CRHONE
585 bool "Sibyte BCM91125C-CRhone"
586 select BOOT_ELF32
587 select DMA_COHERENT
588 select SIBYTE_BCM1125
589 select SWAP_IO_SPACE
590 select SYS_HAS_CPU_SB1
591 select SYS_SUPPORTS_BIG_ENDIAN
592 select SYS_SUPPORTS_HIGHMEM
593 select SYS_SUPPORTS_LITTLE_ENDIAN
594
595 config SIBYTE_RHONE
596 bool "Sibyte BCM91125E-Rhone"
597 select BOOT_ELF32
598 select DMA_COHERENT
599 select SIBYTE_BCM1125H
600 select SWAP_IO_SPACE
601 select SYS_HAS_CPU_SB1
602 select SYS_SUPPORTS_BIG_ENDIAN
603 select SYS_SUPPORTS_LITTLE_ENDIAN
604
605 config SIBYTE_SWARM
606 bool "Sibyte BCM91250A-SWARM"
607 select BOOT_ELF32
608 select DMA_COHERENT
609 select HAVE_PATA_PLATFORM
610 select NR_CPUS_DEFAULT_2
611 select SIBYTE_SB1250
612 select SWAP_IO_SPACE
613 select SYS_HAS_CPU_SB1
614 select SYS_SUPPORTS_BIG_ENDIAN
615 select SYS_SUPPORTS_HIGHMEM
616 select SYS_SUPPORTS_LITTLE_ENDIAN
617 select ZONE_DMA32 if 64BIT
618
619 config SIBYTE_LITTLESUR
620 bool "Sibyte BCM91250C2-LittleSur"
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
632 config SIBYTE_SENTOSA
633 bool "Sibyte BCM91250E-Sentosa"
634 select BOOT_ELF32
635 select DMA_COHERENT
636 select NR_CPUS_DEFAULT_2
637 select SIBYTE_SB1250
638 select SWAP_IO_SPACE
639 select SYS_HAS_CPU_SB1
640 select SYS_SUPPORTS_BIG_ENDIAN
641 select SYS_SUPPORTS_LITTLE_ENDIAN
642
643 config SIBYTE_BIGSUR
644 bool "Sibyte BCM91480B-BigSur"
645 select BOOT_ELF32
646 select DMA_COHERENT
647 select NR_CPUS_DEFAULT_4
648 select SIBYTE_BCM1x80
649 select SWAP_IO_SPACE
650 select SYS_HAS_CPU_SB1
651 select SYS_SUPPORTS_BIG_ENDIAN
652 select SYS_SUPPORTS_HIGHMEM
653 select SYS_SUPPORTS_LITTLE_ENDIAN
654 select ZONE_DMA32 if 64BIT
655
656 config SNI_RM
657 bool "SNI RM200/300/400"
658 select FW_ARC if CPU_LITTLE_ENDIAN
659 select FW_ARC32 if CPU_LITTLE_ENDIAN
660 select SNIPROM if CPU_BIG_ENDIAN
661 select ARCH_MAY_HAVE_PC_FDC
662 select BOOT_ELF32
663 select CEVT_R4K
664 select CSRC_R4K
665 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
666 select DMA_NONCOHERENT
667 select GENERIC_ISA_DMA
668 select HAVE_PCSPKR_PLATFORM
669 select HW_HAS_EISA
670 select HW_HAS_PCI
671 select IRQ_CPU
672 select I8253
673 select I8259
674 select ISA
675 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
676 select SYS_HAS_CPU_R4X00
677 select SYS_HAS_CPU_R5000
678 select SYS_HAS_CPU_R10000
679 select R5000_CPU_SCACHE
680 select SYS_HAS_EARLY_PRINTK
681 select SYS_SUPPORTS_32BIT_KERNEL
682 select SYS_SUPPORTS_64BIT_KERNEL
683 select SYS_SUPPORTS_BIG_ENDIAN
684 select SYS_SUPPORTS_HIGHMEM
685 select SYS_SUPPORTS_LITTLE_ENDIAN
686 help
687 The SNI RM200/300/400 are MIPS-based machines manufactured by
688 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
689 Technology and now in turn merged with Fujitsu. Say Y here to
690 support this machine type.
691
692 config MACH_TX39XX
693 bool "Toshiba TX39 series based machines"
694
695 config MACH_TX49XX
696 bool "Toshiba TX49 series based machines"
697
698 config MIKROTIK_RB532
699 bool "Mikrotik RB532 boards"
700 select CEVT_R4K
701 select CSRC_R4K
702 select DMA_NONCOHERENT
703 select HW_HAS_PCI
704 select IRQ_CPU
705 select SYS_HAS_CPU_MIPS32_R1
706 select SYS_SUPPORTS_32BIT_KERNEL
707 select SYS_SUPPORTS_LITTLE_ENDIAN
708 select SWAP_IO_SPACE
709 select BOOT_RAW
710 select ARCH_REQUIRE_GPIOLIB
711 help
712 Support the Mikrotik(tm) RouterBoard 532 series,
713 based on the IDT RC32434 SoC.
714
715 config WR_PPMC
716 bool "Wind River PPMC board"
717 select CEVT_R4K
718 select CSRC_R4K
719 select IRQ_CPU
720 select BOOT_ELF32
721 select DMA_NONCOHERENT
722 select HW_HAS_PCI
723 select PCI_GT64XXX_PCI0
724 select SWAP_IO_SPACE
725 select SYS_HAS_CPU_MIPS32_R1
726 select SYS_HAS_CPU_MIPS32_R2
727 select SYS_HAS_CPU_MIPS64_R1
728 select SYS_HAS_CPU_NEVADA
729 select SYS_HAS_CPU_RM7000
730 select SYS_SUPPORTS_32BIT_KERNEL
731 select SYS_SUPPORTS_64BIT_KERNEL
732 select SYS_SUPPORTS_BIG_ENDIAN
733 select SYS_SUPPORTS_LITTLE_ENDIAN
734 help
735 This enables support for the Wind River MIPS32 4KC PPMC evaluation
736 board, which is based on GT64120 bridge chip.
737
738 config CAVIUM_OCTEON_SIMULATOR
739 bool "Cavium Networks Octeon Simulator"
740 select CEVT_R4K
741 select 64BIT_PHYS_ADDR
742 select DMA_COHERENT
743 select SYS_SUPPORTS_64BIT_KERNEL
744 select SYS_SUPPORTS_BIG_ENDIAN
745 select SYS_SUPPORTS_HOTPLUG_CPU
746 select SYS_HAS_CPU_CAVIUM_OCTEON
747 select HOLES_IN_ZONE
748 help
749 The Octeon simulator is software performance model of the Cavium
750 Octeon Processor. It supports simulating Octeon processors on x86
751 hardware.
752
753 config CAVIUM_OCTEON_REFERENCE_BOARD
754 bool "Cavium Networks Octeon reference board"
755 select CEVT_R4K
756 select 64BIT_PHYS_ADDR
757 select DMA_COHERENT
758 select SYS_SUPPORTS_64BIT_KERNEL
759 select SYS_SUPPORTS_BIG_ENDIAN
760 select EDAC_SUPPORT
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
784 config NLM_XLR_BOARD
785 bool "Netlogic XLR/XLS based systems"
786 select BOOT_ELF32
787 select NLM_COMMON
788 select SYS_HAS_CPU_XLR
789 select SYS_SUPPORTS_SMP
790 select HW_HAS_PCI
791 select SWAP_IO_SPACE
792 select SYS_SUPPORTS_32BIT_KERNEL
793 select SYS_SUPPORTS_64BIT_KERNEL
794 select 64BIT_PHYS_ADDR
795 select SYS_SUPPORTS_BIG_ENDIAN
796 select SYS_SUPPORTS_HIGHMEM
797 select DMA_COHERENT
798 select NR_CPUS_DEFAULT_32
799 select CEVT_R4K
800 select CSRC_R4K
801 select IRQ_CPU
802 select ARCH_SUPPORTS_MSI
803 select ZONE_DMA32 if 64BIT
804 select SYNC_R4K
805 select SYS_HAS_EARLY_PRINTK
806 select USB_ARCH_HAS_OHCI if USB_SUPPORT
807 select USB_ARCH_HAS_EHCI if USB_SUPPORT
808 help
809 Support for systems based on Netlogic XLR and XLS processors.
810 Say Y here if you have a XLR or XLS based board.
811
812 config NLM_XLP_BOARD
813 bool "Netlogic XLP based systems"
814 select BOOT_ELF32
815 select NLM_COMMON
816 select SYS_HAS_CPU_XLP
817 select SYS_SUPPORTS_SMP
818 select HW_HAS_PCI
819 select SYS_SUPPORTS_32BIT_KERNEL
820 select SYS_SUPPORTS_64BIT_KERNEL
821 select 64BIT_PHYS_ADDR
822 select SYS_SUPPORTS_BIG_ENDIAN
823 select SYS_SUPPORTS_LITTLE_ENDIAN
824 select SYS_SUPPORTS_HIGHMEM
825 select DMA_COHERENT
826 select NR_CPUS_DEFAULT_32
827 select CEVT_R4K
828 select CSRC_R4K
829 select IRQ_CPU
830 select ZONE_DMA32 if 64BIT
831 select SYNC_R4K
832 select SYS_HAS_EARLY_PRINTK
833 select USE_OF
834 help
835 This board is based on Netlogic XLP Processor.
836 Say Y here if you have a XLP based board.
837
838 endchoice
839
840 source "arch/mips/alchemy/Kconfig"
841 source "arch/mips/ath79/Kconfig"
842 source "arch/mips/bcm47xx/Kconfig"
843 source "arch/mips/bcm63xx/Kconfig"
844 source "arch/mips/jazz/Kconfig"
845 source "arch/mips/jz4740/Kconfig"
846 source "arch/mips/lantiq/Kconfig"
847 source "arch/mips/lasat/Kconfig"
848 source "arch/mips/pmcs-msp71xx/Kconfig"
849 source "arch/mips/powertv/Kconfig"
850 source "arch/mips/ralink/Kconfig"
851 source "arch/mips/sgi-ip27/Kconfig"
852 source "arch/mips/sibyte/Kconfig"
853 source "arch/mips/txx9/Kconfig"
854 source "arch/mips/vr41xx/Kconfig"
855 source "arch/mips/cavium-octeon/Kconfig"
856 source "arch/mips/loongson/Kconfig"
857 source "arch/mips/loongson1/Kconfig"
858 source "arch/mips/netlogic/Kconfig"
859
860 endmenu
861
862 config RWSEM_GENERIC_SPINLOCK
863 bool
864 default y
865
866 config RWSEM_XCHGADD_ALGORITHM
867 bool
868
869 config ARCH_HAS_ILOG2_U32
870 bool
871 default n
872
873 config ARCH_HAS_ILOG2_U64
874 bool
875 default n
876
877 config GENERIC_HWEIGHT
878 bool
879 default y
880
881 config GENERIC_CALIBRATE_DELAY
882 bool
883 default y
884
885 config SCHED_OMIT_FRAME_POINTER
886 bool
887 default y
888
889 #
890 # Select some configuration options automatically based on user selections.
891 #
892 config FW_ARC
893 bool
894
895 config ARCH_MAY_HAVE_PC_FDC
896 bool
897
898 config BOOT_RAW
899 bool
900
901 config CEVT_BCM1480
902 bool
903
904 config CEVT_DS1287
905 bool
906
907 config CEVT_GT641XX
908 bool
909
910 config CEVT_R4K
911 bool
912
913 config CEVT_SB1250
914 bool
915
916 config CEVT_TXX9
917 bool
918
919 config CSRC_BCM1480
920 bool
921
922 config CSRC_IOASIC
923 bool
924
925 config CSRC_POWERTV
926 bool
927
928 config CSRC_R4K
929 bool
930
931 config CSRC_GIC
932 bool
933
934 config CSRC_SB1250
935 bool
936
937 config GPIO_TXX9
938 select GENERIC_GPIO
939 select ARCH_REQUIRE_GPIOLIB
940 bool
941
942 config FW_CFE
943 bool
944
945 config ARCH_DMA_ADDR_T_64BIT
946 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
947
948 config DMA_COHERENT
949 bool
950
951 config DMA_NONCOHERENT
952 bool
953 select NEED_DMA_MAP_STATE
954
955 config NEED_DMA_MAP_STATE
956 bool
957
958 config SYS_HAS_EARLY_PRINTK
959 bool
960
961 config HOTPLUG_CPU
962 bool "Support for hot-pluggable CPUs"
963 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
964 help
965 Say Y here to allow turning CPUs off and on. CPUs can be
966 controlled through /sys/devices/system/cpu.
967 (Note: power management support will enable this option
968 automatically on SMP systems. )
969 Say N if you want to disable CPU hotplug.
970
971 config SYS_SUPPORTS_HOTPLUG_CPU
972 bool
973
974 config I8259
975 bool
976
977 config MIPS_BONITO64
978 bool
979
980 config MIPS_MSC
981 bool
982
983 config MIPS_NILE4
984 bool
985
986 config MIPS_DISABLE_OBSOLETE_IDE
987 bool
988
989 config SYNC_R4K
990 bool
991
992 config MIPS_MACHINE
993 def_bool n
994
995 config NO_IOPORT
996 def_bool n
997
998 config GENERIC_ISA_DMA
999 bool
1000 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1001 select ISA_DMA_API
1002
1003 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1004 bool
1005 select GENERIC_ISA_DMA
1006
1007 config ISA_DMA_API
1008 bool
1009
1010 config GENERIC_GPIO
1011 bool
1012
1013 config HOLES_IN_ZONE
1014 bool
1015
1016 #
1017 # Endianness selection. Sufficiently obscure so many users don't know what to
1018 # answer,so we try hard to limit the available choices. Also the use of a
1019 # choice statement should be more obvious to the user.
1020 #
1021 choice
1022 prompt "Endianness selection"
1023 help
1024 Some MIPS machines can be configured for either little or big endian
1025 byte order. These modes require different kernels and a different
1026 Linux distribution. In general there is one preferred byteorder for a
1027 particular system but some systems are just as commonly used in the
1028 one or the other endianness.
1029
1030 config CPU_BIG_ENDIAN
1031 bool "Big endian"
1032 depends on SYS_SUPPORTS_BIG_ENDIAN
1033
1034 config CPU_LITTLE_ENDIAN
1035 bool "Little endian"
1036 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1037 help
1038
1039 endchoice
1040
1041 config EXPORT_UASM
1042 bool
1043
1044 config SYS_SUPPORTS_APM_EMULATION
1045 bool
1046
1047 config SYS_SUPPORTS_BIG_ENDIAN
1048 bool
1049
1050 config SYS_SUPPORTS_LITTLE_ENDIAN
1051 bool
1052
1053 config SYS_SUPPORTS_HUGETLBFS
1054 bool
1055 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1056 default y
1057
1058 config MIPS_HUGE_TLB_SUPPORT
1059 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1060
1061 config IRQ_CPU
1062 bool
1063
1064 config IRQ_CPU_RM7K
1065 bool
1066
1067 config IRQ_MSP_SLP
1068 bool
1069
1070 config IRQ_MSP_CIC
1071 bool
1072
1073 config IRQ_TXX9
1074 bool
1075
1076 config IRQ_GT641XX
1077 bool
1078
1079 config IRQ_GIC
1080 bool
1081
1082 config MIPS_BOARDS_GEN
1083 bool
1084
1085 config PCI_GT64XXX_PCI0
1086 bool
1087
1088 config NO_EXCEPT_FILL
1089 bool
1090
1091 config SOC_EMMA2RH
1092 bool
1093 select CEVT_R4K
1094 select CSRC_R4K
1095 select DMA_NONCOHERENT
1096 select IRQ_CPU
1097 select SWAP_IO_SPACE
1098 select SYS_HAS_CPU_R5500
1099 select SYS_SUPPORTS_32BIT_KERNEL
1100 select SYS_SUPPORTS_64BIT_KERNEL
1101 select SYS_SUPPORTS_BIG_ENDIAN
1102
1103 config SOC_PNX833X
1104 bool
1105 select CEVT_R4K
1106 select CSRC_R4K
1107 select IRQ_CPU
1108 select DMA_NONCOHERENT
1109 select SYS_HAS_CPU_MIPS32_R2
1110 select SYS_SUPPORTS_32BIT_KERNEL
1111 select SYS_SUPPORTS_LITTLE_ENDIAN
1112 select SYS_SUPPORTS_BIG_ENDIAN
1113 select GENERIC_GPIO
1114 select CPU_MIPSR2_IRQ_VI
1115
1116 config SOC_PNX8335
1117 bool
1118 select SOC_PNX833X
1119
1120 config SWAP_IO_SPACE
1121 bool
1122
1123 config SGI_HAS_INDYDOG
1124 bool
1125
1126 config SGI_HAS_HAL2
1127 bool
1128
1129 config SGI_HAS_SEEQ
1130 bool
1131
1132 config SGI_HAS_WD93
1133 bool
1134
1135 config SGI_HAS_ZILOG
1136 bool
1137
1138 config SGI_HAS_I8042
1139 bool
1140
1141 config DEFAULT_SGI_PARTITION
1142 bool
1143
1144 config FW_ARC32
1145 bool
1146
1147 config SNIPROM
1148 bool
1149
1150 config BOOT_ELF32
1151 bool
1152
1153 config MIPS_L1_CACHE_SHIFT
1154 int
1155 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
1156 default "6" if MIPS_CPU_SCACHE
1157 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1158 default "5"
1159
1160 config HAVE_STD_PC_SERIAL_PORT
1161 bool
1162
1163 config ARC_CONSOLE
1164 bool "ARC console support"
1165 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1166
1167 config ARC_MEMORY
1168 bool
1169 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1170 default y
1171
1172 config ARC_PROMLIB
1173 bool
1174 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1175 default y
1176
1177 config FW_ARC64
1178 bool
1179
1180 config BOOT_ELF64
1181 bool
1182
1183 menu "CPU selection"
1184
1185 choice
1186 prompt "CPU type"
1187 default CPU_R4X00
1188
1189 config CPU_LOONGSON2E
1190 bool "Loongson 2E"
1191 depends on SYS_HAS_CPU_LOONGSON2E
1192 select CPU_LOONGSON2
1193 help
1194 The Loongson 2E processor implements the MIPS III instruction set
1195 with many extensions.
1196
1197 It has an internal FPGA northbridge, which is compatible to
1198 bonito64.
1199
1200 config CPU_LOONGSON2F
1201 bool "Loongson 2F"
1202 depends on SYS_HAS_CPU_LOONGSON2F
1203 select CPU_LOONGSON2
1204 select GENERIC_GPIO
1205 select ARCH_REQUIRE_GPIOLIB
1206 help
1207 The Loongson 2F processor implements the MIPS III instruction set
1208 with many extensions.
1209
1210 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1211 have a similar programming interface with FPGA northbridge used in
1212 Loongson2E.
1213
1214 config CPU_LOONGSON1B
1215 bool "Loongson 1B"
1216 depends on SYS_HAS_CPU_LOONGSON1B
1217 select CPU_LOONGSON1
1218 help
1219 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1220 release 2 instruction set.
1221
1222 config CPU_MIPS32_R1
1223 bool "MIPS32 Release 1"
1224 depends on SYS_HAS_CPU_MIPS32_R1
1225 select CPU_HAS_PREFETCH
1226 select CPU_SUPPORTS_32BIT_KERNEL
1227 select CPU_SUPPORTS_HIGHMEM
1228 help
1229 Choose this option to build a kernel for release 1 or later of the
1230 MIPS32 architecture. Most modern embedded systems with a 32-bit
1231 MIPS processor are based on a MIPS32 processor. If you know the
1232 specific type of processor in your system, choose those that one
1233 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1234 Release 2 of the MIPS32 architecture is available since several
1235 years so chances are you even have a MIPS32 Release 2 processor
1236 in which case you should choose CPU_MIPS32_R2 instead for better
1237 performance.
1238
1239 config CPU_MIPS32_R2
1240 bool "MIPS32 Release 2"
1241 depends on SYS_HAS_CPU_MIPS32_R2
1242 select CPU_HAS_PREFETCH
1243 select CPU_SUPPORTS_32BIT_KERNEL
1244 select CPU_SUPPORTS_HIGHMEM
1245 help
1246 Choose this option to build a kernel for release 2 or later of the
1247 MIPS32 architecture. Most modern embedded systems with a 32-bit
1248 MIPS processor are based on a MIPS32 processor. If you know the
1249 specific type of processor in your system, choose those that one
1250 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1251
1252 config CPU_MIPS64_R1
1253 bool "MIPS64 Release 1"
1254 depends on SYS_HAS_CPU_MIPS64_R1
1255 select CPU_HAS_PREFETCH
1256 select CPU_SUPPORTS_32BIT_KERNEL
1257 select CPU_SUPPORTS_64BIT_KERNEL
1258 select CPU_SUPPORTS_HIGHMEM
1259 select CPU_SUPPORTS_HUGEPAGES
1260 help
1261 Choose this option to build a kernel for release 1 or later of the
1262 MIPS64 architecture. Many modern embedded systems with a 64-bit
1263 MIPS processor are based on a MIPS64 processor. If you know the
1264 specific type of processor in your system, choose those that one
1265 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1266 Release 2 of the MIPS64 architecture is available since several
1267 years so chances are you even have a MIPS64 Release 2 processor
1268 in which case you should choose CPU_MIPS64_R2 instead for better
1269 performance.
1270
1271 config CPU_MIPS64_R2
1272 bool "MIPS64 Release 2"
1273 depends on SYS_HAS_CPU_MIPS64_R2
1274 select CPU_HAS_PREFETCH
1275 select CPU_SUPPORTS_32BIT_KERNEL
1276 select CPU_SUPPORTS_64BIT_KERNEL
1277 select CPU_SUPPORTS_HIGHMEM
1278 select CPU_SUPPORTS_HUGEPAGES
1279 help
1280 Choose this option to build a kernel for release 2 or later of the
1281 MIPS64 architecture. Many modern embedded systems with a 64-bit
1282 MIPS processor are based on a MIPS64 processor. If you know the
1283 specific type of processor in your system, choose those that one
1284 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1285
1286 config CPU_R3000
1287 bool "R3000"
1288 depends on SYS_HAS_CPU_R3000
1289 select CPU_HAS_WB
1290 select CPU_SUPPORTS_32BIT_KERNEL
1291 select CPU_SUPPORTS_HIGHMEM
1292 help
1293 Please make sure to pick the right CPU type. Linux/MIPS is not
1294 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1295 *not* work on R4000 machines and vice versa. However, since most
1296 of the supported machines have an R4000 (or similar) CPU, R4x00
1297 might be a safe bet. If the resulting kernel does not work,
1298 try to recompile with R3000.
1299
1300 config CPU_TX39XX
1301 bool "R39XX"
1302 depends on SYS_HAS_CPU_TX39XX
1303 select CPU_SUPPORTS_32BIT_KERNEL
1304
1305 config CPU_VR41XX
1306 bool "R41xx"
1307 depends on SYS_HAS_CPU_VR41XX
1308 select CPU_SUPPORTS_32BIT_KERNEL
1309 select CPU_SUPPORTS_64BIT_KERNEL
1310 help
1311 The options selects support for the NEC VR4100 series of processors.
1312 Only choose this option if you have one of these processors as a
1313 kernel built with this option will not run on any other type of
1314 processor or vice versa.
1315
1316 config CPU_R4300
1317 bool "R4300"
1318 depends on SYS_HAS_CPU_R4300
1319 select CPU_SUPPORTS_32BIT_KERNEL
1320 select CPU_SUPPORTS_64BIT_KERNEL
1321 help
1322 MIPS Technologies R4300-series processors.
1323
1324 config CPU_R4X00
1325 bool "R4x00"
1326 depends on SYS_HAS_CPU_R4X00
1327 select CPU_SUPPORTS_32BIT_KERNEL
1328 select CPU_SUPPORTS_64BIT_KERNEL
1329 select CPU_SUPPORTS_HUGEPAGES
1330 help
1331 MIPS Technologies R4000-series processors other than 4300, including
1332 the R4000, R4400, R4600, and 4700.
1333
1334 config CPU_TX49XX
1335 bool "R49XX"
1336 depends on SYS_HAS_CPU_TX49XX
1337 select CPU_HAS_PREFETCH
1338 select CPU_SUPPORTS_32BIT_KERNEL
1339 select CPU_SUPPORTS_64BIT_KERNEL
1340 select CPU_SUPPORTS_HUGEPAGES
1341
1342 config CPU_R5000
1343 bool "R5000"
1344 depends on SYS_HAS_CPU_R5000
1345 select CPU_SUPPORTS_32BIT_KERNEL
1346 select CPU_SUPPORTS_64BIT_KERNEL
1347 select CPU_SUPPORTS_HUGEPAGES
1348 help
1349 MIPS Technologies R5000-series processors other than the Nevada.
1350
1351 config CPU_R5432
1352 bool "R5432"
1353 depends on SYS_HAS_CPU_R5432
1354 select CPU_SUPPORTS_32BIT_KERNEL
1355 select CPU_SUPPORTS_64BIT_KERNEL
1356 select CPU_SUPPORTS_HUGEPAGES
1357
1358 config CPU_R5500
1359 bool "R5500"
1360 depends on SYS_HAS_CPU_R5500
1361 select CPU_SUPPORTS_32BIT_KERNEL
1362 select CPU_SUPPORTS_64BIT_KERNEL
1363 select CPU_SUPPORTS_HUGEPAGES
1364 help
1365 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1366 instruction set.
1367
1368 config CPU_R6000
1369 bool "R6000"
1370 depends on SYS_HAS_CPU_R6000
1371 select CPU_SUPPORTS_32BIT_KERNEL
1372 help
1373 MIPS Technologies R6000 and R6000A series processors. Note these
1374 processors are extremely rare and the support for them is incomplete.
1375
1376 config CPU_NEVADA
1377 bool "RM52xx"
1378 depends on SYS_HAS_CPU_NEVADA
1379 select CPU_SUPPORTS_32BIT_KERNEL
1380 select CPU_SUPPORTS_64BIT_KERNEL
1381 select CPU_SUPPORTS_HUGEPAGES
1382 help
1383 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1384
1385 config CPU_R8000
1386 bool "R8000"
1387 depends on SYS_HAS_CPU_R8000
1388 select CPU_HAS_PREFETCH
1389 select CPU_SUPPORTS_64BIT_KERNEL
1390 help
1391 MIPS Technologies R8000 processors. Note these processors are
1392 uncommon and the support for them is incomplete.
1393
1394 config CPU_R10000
1395 bool "R10000"
1396 depends on SYS_HAS_CPU_R10000
1397 select CPU_HAS_PREFETCH
1398 select CPU_SUPPORTS_32BIT_KERNEL
1399 select CPU_SUPPORTS_64BIT_KERNEL
1400 select CPU_SUPPORTS_HIGHMEM
1401 select CPU_SUPPORTS_HUGEPAGES
1402 help
1403 MIPS Technologies R10000-series processors.
1404
1405 config CPU_RM7000
1406 bool "RM7000"
1407 depends on SYS_HAS_CPU_RM7000
1408 select CPU_HAS_PREFETCH
1409 select CPU_SUPPORTS_32BIT_KERNEL
1410 select CPU_SUPPORTS_64BIT_KERNEL
1411 select CPU_SUPPORTS_HIGHMEM
1412 select CPU_SUPPORTS_HUGEPAGES
1413
1414 config CPU_SB1
1415 bool "SB1"
1416 depends on SYS_HAS_CPU_SB1
1417 select CPU_SUPPORTS_32BIT_KERNEL
1418 select CPU_SUPPORTS_64BIT_KERNEL
1419 select CPU_SUPPORTS_HIGHMEM
1420 select CPU_SUPPORTS_HUGEPAGES
1421 select WEAK_ORDERING
1422
1423 config CPU_CAVIUM_OCTEON
1424 bool "Cavium Octeon processor"
1425 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1426 select ARCH_SPARSEMEM_ENABLE
1427 select CPU_HAS_PREFETCH
1428 select CPU_SUPPORTS_64BIT_KERNEL
1429 select SYS_SUPPORTS_SMP
1430 select NR_CPUS_DEFAULT_16
1431 select WEAK_ORDERING
1432 select CPU_SUPPORTS_HIGHMEM
1433 select CPU_SUPPORTS_HUGEPAGES
1434 select LIBFDT
1435 select USE_OF
1436 help
1437 The Cavium Octeon processor is a highly integrated chip containing
1438 many ethernet hardware widgets for networking tasks. The processor
1439 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1440 Full details can be found at http://www.caviumnetworks.com.
1441
1442 config CPU_BMIPS3300
1443 bool "BMIPS3300"
1444 depends on SYS_HAS_CPU_BMIPS3300
1445 select CPU_BMIPS
1446 help
1447 Broadcom BMIPS3300 processors.
1448
1449 config CPU_BMIPS4350
1450 bool "BMIPS4350"
1451 depends on SYS_HAS_CPU_BMIPS4350
1452 select CPU_BMIPS
1453 select SYS_SUPPORTS_SMP
1454 select SYS_SUPPORTS_HOTPLUG_CPU
1455 help
1456 Broadcom BMIPS4350 ("VIPER") processors.
1457
1458 config CPU_BMIPS4380
1459 bool "BMIPS4380"
1460 depends on SYS_HAS_CPU_BMIPS4380
1461 select CPU_BMIPS
1462 select SYS_SUPPORTS_SMP
1463 select SYS_SUPPORTS_HOTPLUG_CPU
1464 help
1465 Broadcom BMIPS4380 processors.
1466
1467 config CPU_BMIPS5000
1468 bool "BMIPS5000"
1469 depends on SYS_HAS_CPU_BMIPS5000
1470 select CPU_BMIPS
1471 select CPU_SUPPORTS_HIGHMEM
1472 select MIPS_CPU_SCACHE
1473 select SYS_SUPPORTS_SMP
1474 select SYS_SUPPORTS_HOTPLUG_CPU
1475 help
1476 Broadcom BMIPS5000 processors.
1477
1478 config CPU_XLR
1479 bool "Netlogic XLR SoC"
1480 depends on SYS_HAS_CPU_XLR
1481 select CPU_SUPPORTS_32BIT_KERNEL
1482 select CPU_SUPPORTS_64BIT_KERNEL
1483 select CPU_SUPPORTS_HIGHMEM
1484 select CPU_SUPPORTS_HUGEPAGES
1485 select WEAK_ORDERING
1486 select WEAK_REORDERING_BEYOND_LLSC
1487 help
1488 Netlogic Microsystems XLR/XLS processors.
1489
1490 config CPU_XLP
1491 bool "Netlogic XLP SoC"
1492 depends on SYS_HAS_CPU_XLP
1493 select CPU_SUPPORTS_32BIT_KERNEL
1494 select CPU_SUPPORTS_64BIT_KERNEL
1495 select CPU_SUPPORTS_HIGHMEM
1496 select CPU_HAS_LLSC
1497 select WEAK_ORDERING
1498 select WEAK_REORDERING_BEYOND_LLSC
1499 select CPU_HAS_PREFETCH
1500 select CPU_MIPSR2
1501 help
1502 Netlogic Microsystems XLP processors.
1503 endchoice
1504
1505 if CPU_LOONGSON2F
1506 config CPU_NOP_WORKAROUNDS
1507 bool
1508
1509 config CPU_JUMP_WORKAROUNDS
1510 bool
1511
1512 config CPU_LOONGSON2F_WORKAROUNDS
1513 bool "Loongson 2F Workarounds"
1514 default y
1515 select CPU_NOP_WORKAROUNDS
1516 select CPU_JUMP_WORKAROUNDS
1517 help
1518 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1519 require workarounds. Without workarounds the system may hang
1520 unexpectedly. For more information please refer to the gas
1521 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1522
1523 Loongson 2F03 and later have fixed these issues and no workarounds
1524 are needed. The workarounds have no significant side effect on them
1525 but may decrease the performance of the system so this option should
1526 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1527 systems.
1528
1529 If unsure, please say Y.
1530 endif # CPU_LOONGSON2F
1531
1532 config SYS_SUPPORTS_ZBOOT
1533 bool
1534 select HAVE_KERNEL_GZIP
1535 select HAVE_KERNEL_BZIP2
1536 select HAVE_KERNEL_LZMA
1537 select HAVE_KERNEL_LZO
1538
1539 config SYS_SUPPORTS_ZBOOT_UART16550
1540 bool
1541 select SYS_SUPPORTS_ZBOOT
1542
1543 config CPU_LOONGSON2
1544 bool
1545 select CPU_SUPPORTS_32BIT_KERNEL
1546 select CPU_SUPPORTS_64BIT_KERNEL
1547 select CPU_SUPPORTS_HIGHMEM
1548 select CPU_SUPPORTS_HUGEPAGES
1549
1550 config CPU_LOONGSON1
1551 bool
1552 select CPU_MIPS32
1553 select CPU_MIPSR2
1554 select CPU_HAS_PREFETCH
1555 select CPU_SUPPORTS_32BIT_KERNEL
1556 select CPU_SUPPORTS_HIGHMEM
1557
1558 config CPU_BMIPS
1559 bool
1560 select CPU_MIPS32
1561 select CPU_SUPPORTS_32BIT_KERNEL
1562 select DMA_NONCOHERENT
1563 select IRQ_CPU
1564 select SWAP_IO_SPACE
1565 select WEAK_ORDERING
1566
1567 config SYS_HAS_CPU_LOONGSON2E
1568 bool
1569
1570 config SYS_HAS_CPU_LOONGSON2F
1571 bool
1572 select CPU_SUPPORTS_CPUFREQ
1573 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1574 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1575
1576 config SYS_HAS_CPU_LOONGSON1B
1577 bool
1578
1579 config SYS_HAS_CPU_MIPS32_R1
1580 bool
1581
1582 config SYS_HAS_CPU_MIPS32_R2
1583 bool
1584
1585 config SYS_HAS_CPU_MIPS64_R1
1586 bool
1587
1588 config SYS_HAS_CPU_MIPS64_R2
1589 bool
1590
1591 config SYS_HAS_CPU_R3000
1592 bool
1593
1594 config SYS_HAS_CPU_TX39XX
1595 bool
1596
1597 config SYS_HAS_CPU_VR41XX
1598 bool
1599
1600 config SYS_HAS_CPU_R4300
1601 bool
1602
1603 config SYS_HAS_CPU_R4X00
1604 bool
1605
1606 config SYS_HAS_CPU_TX49XX
1607 bool
1608
1609 config SYS_HAS_CPU_R5000
1610 bool
1611
1612 config SYS_HAS_CPU_R5432
1613 bool
1614
1615 config SYS_HAS_CPU_R5500
1616 bool
1617
1618 config SYS_HAS_CPU_R6000
1619 bool
1620
1621 config SYS_HAS_CPU_NEVADA
1622 bool
1623
1624 config SYS_HAS_CPU_R8000
1625 bool
1626
1627 config SYS_HAS_CPU_R10000
1628 bool
1629
1630 config SYS_HAS_CPU_RM7000
1631 bool
1632
1633 config SYS_HAS_CPU_SB1
1634 bool
1635
1636 config SYS_HAS_CPU_CAVIUM_OCTEON
1637 bool
1638
1639 config SYS_HAS_CPU_BMIPS3300
1640 bool
1641
1642 config SYS_HAS_CPU_BMIPS4350
1643 bool
1644
1645 config SYS_HAS_CPU_BMIPS4380
1646 bool
1647
1648 config SYS_HAS_CPU_BMIPS5000
1649 bool
1650
1651 config SYS_HAS_CPU_XLR
1652 bool
1653
1654 config SYS_HAS_CPU_XLP
1655 bool
1656
1657 #
1658 # CPU may reorder R->R, R->W, W->R, W->W
1659 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1660 #
1661 config WEAK_ORDERING
1662 bool
1663
1664 #
1665 # CPU may reorder reads and writes beyond LL/SC
1666 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1667 #
1668 config WEAK_REORDERING_BEYOND_LLSC
1669 bool
1670 endmenu
1671
1672 #
1673 # These two indicate any level of the MIPS32 and MIPS64 architecture
1674 #
1675 config CPU_MIPS32
1676 bool
1677 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1678
1679 config CPU_MIPS64
1680 bool
1681 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1682
1683 #
1684 # These two indicate the revision of the architecture, either Release 1 or Release 2
1685 #
1686 config CPU_MIPSR1
1687 bool
1688 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1689
1690 config CPU_MIPSR2
1691 bool
1692 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1693
1694 config SYS_SUPPORTS_32BIT_KERNEL
1695 bool
1696 config SYS_SUPPORTS_64BIT_KERNEL
1697 bool
1698 config CPU_SUPPORTS_32BIT_KERNEL
1699 bool
1700 config CPU_SUPPORTS_64BIT_KERNEL
1701 bool
1702 config CPU_SUPPORTS_CPUFREQ
1703 bool
1704 config CPU_SUPPORTS_ADDRWINCFG
1705 bool
1706 config CPU_SUPPORTS_HUGEPAGES
1707 bool
1708 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1709 bool
1710 config MIPS_PGD_C0_CONTEXT
1711 bool
1712 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1713
1714 #
1715 # Set to y for ptrace access to watch registers.
1716 #
1717 config HARDWARE_WATCHPOINTS
1718 bool
1719 default y if CPU_MIPSR1 || CPU_MIPSR2
1720
1721 menu "Kernel type"
1722
1723 choice
1724 prompt "Kernel code model"
1725 help
1726 You should only select this option if you have a workload that
1727 actually benefits from 64-bit processing or if your machine has
1728 large memory. You will only be presented a single option in this
1729 menu if your system does not support both 32-bit and 64-bit kernels.
1730
1731 config 32BIT
1732 bool "32-bit kernel"
1733 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1734 select TRAD_SIGNALS
1735 help
1736 Select this option if you want to build a 32-bit kernel.
1737 config 64BIT
1738 bool "64-bit kernel"
1739 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1740 select HAVE_SYSCALL_WRAPPERS
1741 help
1742 Select this option if you want to build a 64-bit kernel.
1743
1744 endchoice
1745
1746 choice
1747 prompt "Kernel page size"
1748 default PAGE_SIZE_4KB
1749
1750 config PAGE_SIZE_4KB
1751 bool "4kB"
1752 depends on !CPU_LOONGSON2
1753 help
1754 This option select the standard 4kB Linux page size. On some
1755 R3000-family processors this is the only available page size. Using
1756 4kB page size will minimize memory consumption and is therefore
1757 recommended for low memory systems.
1758
1759 config PAGE_SIZE_8KB
1760 bool "8kB"
1761 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
1762 help
1763 Using 8kB page size will result in higher performance kernel at
1764 the price of higher memory consumption. This option is available
1765 only on R8000 and cnMIPS processors. Note that you will need a
1766 suitable Linux distribution to support this.
1767
1768 config PAGE_SIZE_16KB
1769 bool "16kB"
1770 depends on !CPU_R3000 && !CPU_TX39XX
1771 help
1772 Using 16kB page size will result in higher performance kernel at
1773 the price of higher memory consumption. This option is available on
1774 all non-R3000 family processors. Note that you will need a suitable
1775 Linux distribution to support this.
1776
1777 config PAGE_SIZE_32KB
1778 bool "32kB"
1779 depends on CPU_CAVIUM_OCTEON
1780 help
1781 Using 32kB page size will result in higher performance kernel at
1782 the price of higher memory consumption. This option is available
1783 only on cnMIPS cores. Note that you will need a suitable Linux
1784 distribution to support this.
1785
1786 config PAGE_SIZE_64KB
1787 bool "64kB"
1788 depends on !CPU_R3000 && !CPU_TX39XX
1789 help
1790 Using 64kB page size will result in higher performance kernel at
1791 the price of higher memory consumption. This option is available on
1792 all non-R3000 family processor. Not that at the time of this
1793 writing this option is still high experimental.
1794
1795 endchoice
1796
1797 config FORCE_MAX_ZONEORDER
1798 int "Maximum zone order"
1799 range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
1800 default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
1801 range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
1802 default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
1803 range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
1804 default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
1805 range 11 64
1806 default "11"
1807 help
1808 The kernel memory allocator divides physically contiguous memory
1809 blocks into "zones", where each zone is a power of two number of
1810 pages. This option selects the largest power of two that the kernel
1811 keeps in the memory allocator. If you need to allocate very large
1812 blocks of physically contiguous memory, then you may need to
1813 increase this value.
1814
1815 This config option is actually maximum order plus one. For example,
1816 a value of 11 means that the largest free memory block is 2^10 pages.
1817
1818 The page size is not necessarily 4KB. Keep this in mind
1819 when choosing a value for this option.
1820
1821 config BOARD_SCACHE
1822 bool
1823
1824 config IP22_CPU_SCACHE
1825 bool
1826 select BOARD_SCACHE
1827
1828 #
1829 # Support for a MIPS32 / MIPS64 style S-caches
1830 #
1831 config MIPS_CPU_SCACHE
1832 bool
1833 select BOARD_SCACHE
1834
1835 config R5000_CPU_SCACHE
1836 bool
1837 select BOARD_SCACHE
1838
1839 config RM7000_CPU_SCACHE
1840 bool
1841 select BOARD_SCACHE
1842
1843 config SIBYTE_DMA_PAGEOPS
1844 bool "Use DMA to clear/copy pages"
1845 depends on CPU_SB1
1846 help
1847 Instead of using the CPU to zero and copy pages, use a Data Mover
1848 channel. These DMA channels are otherwise unused by the standard
1849 SiByte Linux port. Seems to give a small performance benefit.
1850
1851 config CPU_HAS_PREFETCH
1852 bool
1853
1854 config CPU_GENERIC_DUMP_TLB
1855 bool
1856 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1857
1858 config CPU_R4K_FPU
1859 bool
1860 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1861
1862 config CPU_R4K_CACHE_TLB
1863 bool
1864 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1865
1866 choice
1867 prompt "MIPS MT options"
1868
1869 config MIPS_MT_DISABLED
1870 bool "Disable multithreading support."
1871 help
1872 Use this option if your workload can't take advantage of
1873 MIPS hardware multithreading support. On systems that don't have
1874 the option of an MT-enabled processor this option will be the only
1875 option in this menu.
1876
1877 config MIPS_MT_SMP
1878 bool "Use 1 TC on each available VPE for SMP"
1879 depends on SYS_SUPPORTS_MULTITHREADING
1880 select CPU_MIPSR2_IRQ_VI
1881 select CPU_MIPSR2_IRQ_EI
1882 select MIPS_MT
1883 select NR_CPUS_DEFAULT_2
1884 select SMP
1885 select SYS_SUPPORTS_SCHED_SMT if SMP
1886 select SYS_SUPPORTS_SMP
1887 select SMP_UP
1888 select MIPS_PERF_SHARED_TC_COUNTERS
1889 help
1890 This is a kernel model which is known a VSMP but lately has been
1891 marketesed into SMVP.
1892 Virtual SMP uses the processor's VPEs to implement virtual
1893 processors. In currently available configuration of the 34K processor
1894 this allows for a dual processor. Both processors will share the same
1895 primary caches; each will obtain the half of the TLB for it's own
1896 exclusive use. For a layman this model can be described as similar to
1897 what Intel calls Hyperthreading.
1898
1899 For further information see http://www.linux-mips.org/wiki/34K#VSMP
1900
1901 config MIPS_MT_SMTC
1902 bool "SMTC: Use all TCs on all VPEs for SMP"
1903 depends on CPU_MIPS32_R2
1904 #depends on CPU_MIPS64_R2 # once there is hardware ...
1905 depends on SYS_SUPPORTS_MULTITHREADING
1906 select CPU_MIPSR2_IRQ_VI
1907 select CPU_MIPSR2_IRQ_EI
1908 select MIPS_MT
1909 select NR_CPUS_DEFAULT_8
1910 select SMP
1911 select SYS_SUPPORTS_SMP
1912 select SMP_UP
1913 help
1914 This is a kernel model which is known a SMTC or lately has been
1915 marketesed into SMVP.
1916 is presenting the available TC's of the core as processors to Linux.
1917 On currently available 34K processors this means a Linux system will
1918 see up to 5 processors. The implementation of the SMTC kernel differs
1919 significantly from VSMP and cannot efficiently coexist in the same
1920 kernel binary so the choice between VSMP and SMTC is a compile time
1921 decision.
1922
1923 For further information see http://www.linux-mips.org/wiki/34K#SMTC
1924
1925 endchoice
1926
1927 config MIPS_MT
1928 bool
1929
1930 config SCHED_SMT
1931 bool "SMT (multithreading) scheduler support"
1932 depends on SYS_SUPPORTS_SCHED_SMT
1933 default n
1934 help
1935 SMT scheduler support improves the CPU scheduler's decision making
1936 when dealing with MIPS MT enabled cores at a cost of slightly
1937 increased overhead in some places. If unsure say N here.
1938
1939 config SYS_SUPPORTS_SCHED_SMT
1940 bool
1941
1942 config SYS_SUPPORTS_MULTITHREADING
1943 bool
1944
1945 config MIPS_MT_FPAFF
1946 bool "Dynamic FPU affinity for FP-intensive threads"
1947 default y
1948 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1949
1950 config MIPS_VPE_LOADER
1951 bool "VPE loader support."
1952 depends on SYS_SUPPORTS_MULTITHREADING
1953 select CPU_MIPSR2_IRQ_VI
1954 select CPU_MIPSR2_IRQ_EI
1955 select MIPS_MT
1956 help
1957 Includes a loader for loading an elf relocatable object
1958 onto another VPE and running it.
1959
1960 config MIPS_MT_SMTC_IM_BACKSTOP
1961 bool "Use per-TC register bits as backstop for inhibited IM bits"
1962 depends on MIPS_MT_SMTC
1963 default n
1964 help
1965 To support multiple TC microthreads acting as "CPUs" within
1966 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1967 during interrupt handling. To support legacy drivers and interrupt
1968 controller management code, SMTC has a "backstop" to track and
1969 if necessary restore the interrupt mask. This has some performance
1970 impact on interrupt service overhead.
1971
1972 config MIPS_MT_SMTC_IRQAFF
1973 bool "Support IRQ affinity API"
1974 depends on MIPS_MT_SMTC
1975 default n
1976 help
1977 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1978 for SMTC Linux kernel. Requires platform support, of which
1979 an example can be found in the MIPS kernel i8259 and Malta
1980 platform code. Adds some overhead to interrupt dispatch, and
1981 should be used only if you know what you are doing.
1982
1983 config MIPS_VPE_LOADER_TOM
1984 bool "Load VPE program into memory hidden from linux"
1985 depends on MIPS_VPE_LOADER
1986 default y
1987 help
1988 The loader can use memory that is present but has been hidden from
1989 Linux using the kernel command line option "mem=xxMB". It's up to
1990 you to ensure the amount you put in the option and the space your
1991 program requires is less or equal to the amount physically present.
1992
1993 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1994 config MIPS_VPE_APSP_API
1995 bool "Enable support for AP/SP API (RTLX)"
1996 depends on MIPS_VPE_LOADER
1997 help
1998
1999 config MIPS_CMP
2000 bool "MIPS CMP framework support"
2001 depends on SYS_SUPPORTS_MIPS_CMP
2002 select SYNC_R4K
2003 select SYS_SUPPORTS_SMP
2004 select SYS_SUPPORTS_SCHED_SMT if SMP
2005 select WEAK_ORDERING
2006 default n
2007 help
2008 This is a placeholder option for the GCMP work. It will need to
2009 be handled differently...
2010
2011 config SB1_PASS_1_WORKAROUNDS
2012 bool
2013 depends on CPU_SB1_PASS_1
2014 default y
2015
2016 config SB1_PASS_2_WORKAROUNDS
2017 bool
2018 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2019 default y
2020
2021 config SB1_PASS_2_1_WORKAROUNDS
2022 bool
2023 depends on CPU_SB1 && CPU_SB1_PASS_2
2024 default y
2025
2026 config 64BIT_PHYS_ADDR
2027 bool
2028
2029 config ARCH_PHYS_ADDR_T_64BIT
2030 def_bool 64BIT_PHYS_ADDR
2031
2032 config CPU_HAS_SMARTMIPS
2033 depends on SYS_SUPPORTS_SMARTMIPS
2034 bool "Support for the SmartMIPS ASE"
2035 help
2036 SmartMIPS is a extension of the MIPS32 architecture aimed at
2037 increased security at both hardware and software level for
2038 smartcards. Enabling this option will allow proper use of the
2039 SmartMIPS instructions by Linux applications. However a kernel with
2040 this option will not work on a MIPS core without SmartMIPS core. If
2041 you don't know you probably don't have SmartMIPS and should say N
2042 here.
2043
2044 config CPU_HAS_WB
2045 bool
2046
2047 config XKS01
2048 bool
2049
2050 #
2051 # Vectored interrupt mode is an R2 feature
2052 #
2053 config CPU_MIPSR2_IRQ_VI
2054 bool
2055
2056 #
2057 # Extended interrupt mode is an R2 feature
2058 #
2059 config CPU_MIPSR2_IRQ_EI
2060 bool
2061
2062 config CPU_HAS_SYNC
2063 bool
2064 depends on !CPU_R3000
2065 default y
2066
2067 #
2068 # CPU non-features
2069 #
2070 config CPU_DADDI_WORKAROUNDS
2071 bool
2072
2073 config CPU_R4000_WORKAROUNDS
2074 bool
2075 select CPU_R4400_WORKAROUNDS
2076
2077 config CPU_R4400_WORKAROUNDS
2078 bool
2079
2080 #
2081 # - Highmem only makes sense for the 32-bit kernel.
2082 # - The current highmem code will only work properly on physically indexed
2083 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2084 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2085 # moment we protect the user and offer the highmem option only on machines
2086 # where it's known to be safe. This will not offer highmem on a few systems
2087 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2088 # indexed CPUs but we're playing safe.
2089 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2090 # know they might have memory configurations that could make use of highmem
2091 # support.
2092 #
2093 config HIGHMEM
2094 bool "High Memory Support"
2095 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
2096
2097 config CPU_SUPPORTS_HIGHMEM
2098 bool
2099
2100 config SYS_SUPPORTS_HIGHMEM
2101 bool
2102
2103 config SYS_SUPPORTS_SMARTMIPS
2104 bool
2105
2106 config ARCH_FLATMEM_ENABLE
2107 def_bool y
2108 depends on !NUMA && !CPU_LOONGSON2
2109
2110 config ARCH_DISCONTIGMEM_ENABLE
2111 bool
2112 default y if SGI_IP27
2113 help
2114 Say Y to support efficient handling of discontiguous physical memory,
2115 for architectures which are either NUMA (Non-Uniform Memory Access)
2116 or have huge holes in the physical address space for other reasons.
2117 See <file:Documentation/vm/numa> for more.
2118
2119 config ARCH_SPARSEMEM_ENABLE
2120 bool
2121 select SPARSEMEM_STATIC
2122
2123 config NUMA
2124 bool "NUMA Support"
2125 depends on SYS_SUPPORTS_NUMA
2126 help
2127 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2128 Access). This option improves performance on systems with more
2129 than two nodes; on two node systems it is generally better to
2130 leave it disabled; on single node systems disable this option
2131 disabled.
2132
2133 config SYS_SUPPORTS_NUMA
2134 bool
2135
2136 config NODES_SHIFT
2137 int
2138 default "6"
2139 depends on NEED_MULTIPLE_NODES
2140
2141 config HW_PERF_EVENTS
2142 bool "Enable hardware performance counter support for perf events"
2143 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2144 default y
2145 help
2146 Enable hardware performance counter support for perf events. If
2147 disabled, perf events will use software events only.
2148
2149 source "mm/Kconfig"
2150
2151 config SMP
2152 bool "Multi-Processing support"
2153 depends on SYS_SUPPORTS_SMP
2154 select USE_GENERIC_SMP_HELPERS
2155 help
2156 This enables support for systems with more than one CPU. If you have
2157 a system with only one CPU, like most personal computers, say N. If
2158 you have a system with more than one CPU, say Y.
2159
2160 If you say N here, the kernel will run on single and multiprocessor
2161 machines, but will use only one CPU of a multiprocessor machine. If
2162 you say Y here, the kernel will run on many, but not all,
2163 singleprocessor machines. On a singleprocessor machine, the kernel
2164 will run faster if you say N here.
2165
2166 People using multiprocessor machines who say Y here should also say
2167 Y to "Enhanced Real Time Clock Support", below.
2168
2169 See also the SMP-HOWTO available at
2170 <http://www.tldp.org/docs.html#howto>.
2171
2172 If you don't know what to do here, say N.
2173
2174 config SMP_UP
2175 bool
2176
2177 config SYS_SUPPORTS_MIPS_CMP
2178 bool
2179
2180 config SYS_SUPPORTS_SMP
2181 bool
2182
2183 config NR_CPUS_DEFAULT_1
2184 bool
2185
2186 config NR_CPUS_DEFAULT_2
2187 bool
2188
2189 config NR_CPUS_DEFAULT_4
2190 bool
2191
2192 config NR_CPUS_DEFAULT_8
2193 bool
2194
2195 config NR_CPUS_DEFAULT_16
2196 bool
2197
2198 config NR_CPUS_DEFAULT_32
2199 bool
2200
2201 config NR_CPUS_DEFAULT_64
2202 bool
2203
2204 config NR_CPUS
2205 int "Maximum number of CPUs (2-64)"
2206 range 1 64 if NR_CPUS_DEFAULT_1
2207 depends on SMP
2208 default "1" if NR_CPUS_DEFAULT_1
2209 default "2" if NR_CPUS_DEFAULT_2
2210 default "4" if NR_CPUS_DEFAULT_4
2211 default "8" if NR_CPUS_DEFAULT_8
2212 default "16" if NR_CPUS_DEFAULT_16
2213 default "32" if NR_CPUS_DEFAULT_32
2214 default "64" if NR_CPUS_DEFAULT_64
2215 help
2216 This allows you to specify the maximum number of CPUs which this
2217 kernel will support. The maximum supported value is 32 for 32-bit
2218 kernel and 64 for 64-bit kernels; the minimum value which makes
2219 sense is 1 for Qemu (useful only for kernel debugging purposes)
2220 and 2 for all others.
2221
2222 This is purely to save memory - each supported CPU adds
2223 approximately eight kilobytes to the kernel image. For best
2224 performance should round up your number of processors to the next
2225 power of two.
2226
2227 config MIPS_PERF_SHARED_TC_COUNTERS
2228 bool
2229
2230 #
2231 # Timer Interrupt Frequency Configuration
2232 #
2233
2234 choice
2235 prompt "Timer frequency"
2236 default HZ_250
2237 help
2238 Allows the configuration of the timer frequency.
2239
2240 config HZ_48
2241 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2242
2243 config HZ_100
2244 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2245
2246 config HZ_128
2247 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2248
2249 config HZ_250
2250 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2251
2252 config HZ_256
2253 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2254
2255 config HZ_1000
2256 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2257
2258 config HZ_1024
2259 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2260
2261 endchoice
2262
2263 config SYS_SUPPORTS_48HZ
2264 bool
2265
2266 config SYS_SUPPORTS_100HZ
2267 bool
2268
2269 config SYS_SUPPORTS_128HZ
2270 bool
2271
2272 config SYS_SUPPORTS_250HZ
2273 bool
2274
2275 config SYS_SUPPORTS_256HZ
2276 bool
2277
2278 config SYS_SUPPORTS_1000HZ
2279 bool
2280
2281 config SYS_SUPPORTS_1024HZ
2282 bool
2283
2284 config SYS_SUPPORTS_ARBIT_HZ
2285 bool
2286 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2287 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2288 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2289 !SYS_SUPPORTS_1024HZ
2290
2291 config HZ
2292 int
2293 default 48 if HZ_48
2294 default 100 if HZ_100
2295 default 128 if HZ_128
2296 default 250 if HZ_250
2297 default 256 if HZ_256
2298 default 1000 if HZ_1000
2299 default 1024 if HZ_1024
2300
2301 source "kernel/Kconfig.preempt"
2302
2303 config KEXEC
2304 bool "Kexec system call"
2305 help
2306 kexec is a system call that implements the ability to shutdown your
2307 current kernel, and to start another kernel. It is like a reboot
2308 but it is independent of the system firmware. And like a reboot
2309 you can start any kernel with it, not just Linux.
2310
2311 The name comes from the similarity to the exec system call.
2312
2313 It is an ongoing process to be certain the hardware in a machine
2314 is properly shutdown, so do not be surprised if this code does not
2315 initially work for you. It may help to enable device hotplugging
2316 support. As of this writing the exact hardware interface is
2317 strongly in flux, so no good recommendation can be made.
2318
2319 config CRASH_DUMP
2320 bool "Kernel crash dumps"
2321 help
2322 Generate crash dump after being started by kexec.
2323 This should be normally only set in special crash dump kernels
2324 which are loaded in the main kernel with kexec-tools into
2325 a specially reserved region and then later executed after
2326 a crash by kdump/kexec. The crash dump kernel must be compiled
2327 to a memory address not used by the main kernel or firmware using
2328 PHYSICAL_START.
2329
2330 config PHYSICAL_START
2331 hex "Physical address where the kernel is loaded"
2332 default "0xffffffff84000000" if 64BIT
2333 default "0x84000000" if 32BIT
2334 depends on CRASH_DUMP
2335 help
2336 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2337 If you plan to use kernel for capturing the crash dump change
2338 this value to start of the reserved region (the "X" value as
2339 specified in the "crashkernel=YM@XM" command line boot parameter
2340 passed to the panic-ed kernel).
2341
2342 config SECCOMP
2343 bool "Enable seccomp to safely compute untrusted bytecode"
2344 depends on PROC_FS
2345 default y
2346 help
2347 This kernel feature is useful for number crunching applications
2348 that may need to compute untrusted bytecode during their
2349 execution. By using pipes or other transports made available to
2350 the process as file descriptors supporting the read/write
2351 syscalls, it's possible to isolate those applications in
2352 their own address space using seccomp. Once seccomp is
2353 enabled via /proc/<pid>/seccomp, it cannot be disabled
2354 and the task is only allowed to execute a few safe syscalls
2355 defined by each seccomp mode.
2356
2357 If unsure, say Y. Only embedded should say N here.
2358
2359 config USE_OF
2360 bool
2361 select OF
2362 select OF_EARLY_FLATTREE
2363 select IRQ_DOMAIN
2364
2365 endmenu
2366
2367 config LOCKDEP_SUPPORT
2368 bool
2369 default y
2370
2371 config STACKTRACE_SUPPORT
2372 bool
2373 default y
2374
2375 source "init/Kconfig"
2376
2377 source "kernel/Kconfig.freezer"
2378
2379 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2380
2381 config HW_HAS_EISA
2382 bool
2383 config HW_HAS_PCI
2384 bool
2385
2386 config PCI
2387 bool "Support for PCI controller"
2388 depends on HW_HAS_PCI
2389 select PCI_DOMAINS
2390 select GENERIC_PCI_IOMAP
2391 select NO_GENERIC_PCI_IOPORT_MAP
2392 help
2393 Find out whether you have a PCI motherboard. PCI is the name of a
2394 bus system, i.e. the way the CPU talks to the other stuff inside
2395 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2396 say Y, otherwise N.
2397
2398 config PCI_DOMAINS
2399 bool
2400
2401 source "drivers/pci/Kconfig"
2402
2403 source "drivers/pci/pcie/Kconfig"
2404
2405 #
2406 # ISA support is now enabled via select. Too many systems still have the one
2407 # or other ISA chip on the board that users don't know about so don't expect
2408 # users to choose the right thing ...
2409 #
2410 config ISA
2411 bool
2412
2413 config EISA
2414 bool "EISA support"
2415 depends on HW_HAS_EISA
2416 select ISA
2417 select GENERIC_ISA_DMA
2418 ---help---
2419 The Extended Industry Standard Architecture (EISA) bus was
2420 developed as an open alternative to the IBM MicroChannel bus.
2421
2422 The EISA bus provided some of the features of the IBM MicroChannel
2423 bus while maintaining backward compatibility with cards made for
2424 the older ISA bus. The EISA bus saw limited use between 1988 and
2425 1995 when it was made obsolete by the PCI bus.
2426
2427 Say Y here if you are building a kernel for an EISA-based machine.
2428
2429 Otherwise, say N.
2430
2431 source "drivers/eisa/Kconfig"
2432
2433 config TC
2434 bool "TURBOchannel support"
2435 depends on MACH_DECSTATION
2436 help
2437 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2438 processors. TURBOchannel programming specifications are available
2439 at:
2440 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2441 and:
2442 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2443 Linux driver support status is documented at:
2444 <http://www.linux-mips.org/wiki/DECstation>
2445
2446 config MMU
2447 bool
2448 default y
2449
2450 config I8253
2451 bool
2452 select CLKSRC_I8253
2453 select CLKEVT_I8253
2454 select MIPS_EXTERNAL_TIMER
2455
2456 config ZONE_DMA32
2457 bool
2458
2459 source "drivers/pcmcia/Kconfig"
2460
2461 source "drivers/pci/hotplug/Kconfig"
2462
2463 config RAPIDIO
2464 bool "RapidIO support"
2465 depends on PCI
2466 default n
2467 help
2468 If you say Y here, the kernel will include drivers and
2469 infrastructure code to support RapidIO interconnect devices.
2470
2471 source "drivers/rapidio/Kconfig"
2472
2473 endmenu
2474
2475 menu "Executable file formats"
2476
2477 source "fs/Kconfig.binfmt"
2478
2479 config TRAD_SIGNALS
2480 bool
2481
2482 config MIPS32_COMPAT
2483 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2484 depends on 64BIT
2485 help
2486 Select this option if you want Linux/MIPS 32-bit binary
2487 compatibility. Since all software available for Linux/MIPS is
2488 currently 32-bit you should say Y here.
2489
2490 config COMPAT
2491 bool
2492 depends on MIPS32_COMPAT
2493 select ARCH_WANT_OLD_COMPAT_IPC
2494 default y
2495
2496 config SYSVIPC_COMPAT
2497 bool
2498 depends on COMPAT && SYSVIPC
2499 default y
2500
2501 config MIPS32_O32
2502 bool "Kernel support for o32 binaries"
2503 depends on MIPS32_COMPAT
2504 help
2505 Select this option if you want to run o32 binaries. These are pure
2506 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2507 existing binaries are in this format.
2508
2509 If unsure, say Y.
2510
2511 config MIPS32_N32
2512 bool "Kernel support for n32 binaries"
2513 depends on MIPS32_COMPAT
2514 help
2515 Select this option if you want to run n32 binaries. These are
2516 64-bit binaries using 32-bit quantities for addressing and certain
2517 data that would normally be 64-bit. They are used in special
2518 cases.
2519
2520 If unsure, say N.
2521
2522 config BINFMT_ELF32
2523 bool
2524 default y if MIPS32_O32 || MIPS32_N32
2525
2526 endmenu
2527
2528 menu "Power management options"
2529
2530 config ARCH_HIBERNATION_POSSIBLE
2531 def_bool y
2532 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2533
2534 config ARCH_SUSPEND_POSSIBLE
2535 def_bool y
2536 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2537
2538 source "kernel/power/Kconfig"
2539
2540 endmenu
2541
2542 source "arch/mips/kernel/cpufreq/Kconfig"
2543
2544 source "net/Kconfig"
2545
2546 source "drivers/Kconfig"
2547
2548 source "drivers/firmware/Kconfig"
2549
2550 source "fs/Kconfig"
2551
2552 source "arch/mips/Kconfig.debug"
2553
2554 source "security/Kconfig"
2555
2556 source "crypto/Kconfig"
2557
2558 source "lib/Kconfig"