Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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1config MIPS
2 bool
3 default y
4 select ARCH_MIGHT_HAVE_PC_PARPORT
5 select ARCH_MIGHT_HAVE_PC_SERIO
6 select HAVE_CONTEXT_TRACKING
7 select HAVE_GENERIC_DMA_COHERENT
8 select HAVE_IDE
9 select HAVE_OPROFILE
10 select HAVE_PERF_EVENTS
11 select PERF_USE_VMALLOC
12 select HAVE_ARCH_KGDB
13 select HAVE_ARCH_SECCOMP_FILTER
14 select HAVE_ARCH_TRACEHOOK
15 select HAVE_BPF_JIT if !CPU_MICROMIPS
16 select ARCH_HAVE_CUSTOM_GPIO_H
17 select HAVE_FUNCTION_TRACER
18 select HAVE_DYNAMIC_FTRACE
19 select HAVE_FTRACE_MCOUNT_RECORD
20 select HAVE_C_RECORDMCOUNT
21 select HAVE_FUNCTION_GRAPH_TRACER
22 select HAVE_KPROBES
23 select HAVE_KRETPROBES
24 select HAVE_SYSCALL_TRACEPOINTS
25 select HAVE_DEBUG_KMEMLEAK
26 select HAVE_SYSCALL_TRACEPOINTS
27 select ARCH_HAS_ELF_RANDOMIZE
28 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
29 select RTC_LIB if !MACH_LOONGSON64
30 select GENERIC_ATOMIC64 if !64BIT
31 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
32 select HAVE_DMA_ATTRS
33 select HAVE_DMA_CONTIGUOUS
34 select HAVE_DMA_API_DEBUG
35 select GENERIC_IRQ_PROBE
36 select GENERIC_IRQ_SHOW
37 select GENERIC_PCI_IOMAP
38 select HAVE_ARCH_JUMP_LABEL
39 select ARCH_WANT_IPC_PARSE_VERSION
40 select IRQ_FORCED_THREADING
41 select HAVE_MEMBLOCK
42 select HAVE_MEMBLOCK_NODE_MAP
43 select ARCH_DISCARD_MEMBLOCK
44 select GENERIC_SMP_IDLE_THREAD
45 select BUILDTIME_EXTABLE_SORT
46 select GENERIC_CLOCKEVENTS
47 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
48 select GENERIC_CMOS_UPDATE
49 select HAVE_MOD_ARCH_SPECIFIC
50 select VIRT_TO_BUS
51 select MODULES_USE_ELF_REL if MODULES
52 select MODULES_USE_ELF_RELA if MODULES && 64BIT
53 select CLONE_BACKWARDS
54 select HAVE_DEBUG_STACKOVERFLOW
55 select HAVE_CC_STACKPROTECTOR
56 select CPU_PM if CPU_IDLE
57 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
58 select ARCH_BINFMT_ELF_STATE
59 select SYSCTL_EXCEPTION_TRACE
60 select HAVE_VIRT_CPU_ACCOUNTING_GEN
61 select HAVE_IRQ_TIME_ACCOUNTING
62
63menu "Machine selection"
64
65choice
66 prompt "System type"
67 default SGI_IP22
68
69config MIPS_ALCHEMY
70 bool "Alchemy processor based machines"
71 select ARCH_PHYS_ADDR_T_64BIT
72 select CEVT_R4K
73 select CSRC_R4K
74 select IRQ_MIPS_CPU
75 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is
76 select SYS_HAS_CPU_MIPS32_R1
77 select SYS_SUPPORTS_32BIT_KERNEL
78 select SYS_SUPPORTS_APM_EMULATION
79 select ARCH_REQUIRE_GPIOLIB
80 select SYS_SUPPORTS_ZBOOT
81 select COMMON_CLK
82
83config AR7
84 bool "Texas Instruments AR7"
85 select BOOT_ELF32
86 select DMA_NONCOHERENT
87 select CEVT_R4K
88 select CSRC_R4K
89 select IRQ_MIPS_CPU
90 select NO_EXCEPT_FILL
91 select SWAP_IO_SPACE
92 select SYS_HAS_CPU_MIPS32_R1
93 select SYS_HAS_EARLY_PRINTK
94 select SYS_SUPPORTS_32BIT_KERNEL
95 select SYS_SUPPORTS_LITTLE_ENDIAN
96 select SYS_SUPPORTS_MIPS16
97 select SYS_SUPPORTS_ZBOOT_UART16550
98 select ARCH_REQUIRE_GPIOLIB
99 select VLYNQ
100 select HAVE_CLK
101 help
102 Support for the Texas Instruments AR7 System-on-a-Chip
103 family: TNETD7100, 7200 and 7300.
104
105config ATH25
106 bool "Atheros AR231x/AR531x SoC support"
107 select CEVT_R4K
108 select CSRC_R4K
109 select DMA_NONCOHERENT
110 select IRQ_MIPS_CPU
111 select IRQ_DOMAIN
112 select SYS_HAS_CPU_MIPS32_R1
113 select SYS_SUPPORTS_BIG_ENDIAN
114 select SYS_SUPPORTS_32BIT_KERNEL
115 select SYS_HAS_EARLY_PRINTK
116 help
117 Support for Atheros AR231x and Atheros AR531x based boards
118
119config ATH79
120 bool "Atheros AR71XX/AR724X/AR913X based boards"
121 select ARCH_REQUIRE_GPIOLIB
122 select BOOT_RAW
123 select CEVT_R4K
124 select CSRC_R4K
125 select DMA_NONCOHERENT
126 select HAVE_CLK
127 select COMMON_CLK
128 select CLKDEV_LOOKUP
129 select IRQ_MIPS_CPU
130 select MIPS_MACHINE
131 select SYS_HAS_CPU_MIPS32_R2
132 select SYS_HAS_EARLY_PRINTK
133 select SYS_SUPPORTS_32BIT_KERNEL
134 select SYS_SUPPORTS_BIG_ENDIAN
135 select SYS_SUPPORTS_MIPS16
136 select SYS_SUPPORTS_ZBOOT
137 select USE_OF
138 help
139 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
140
141config BMIPS_GENERIC
142 bool "Broadcom Generic BMIPS kernel"
143 select BOOT_RAW
144 select NO_EXCEPT_FILL
145 select USE_OF
146 select CEVT_R4K
147 select CSRC_R4K
148 select SYNC_R4K
149 select COMMON_CLK
150 select BCM7038_L1_IRQ
151 select BCM7120_L2_IRQ
152 select BRCMSTB_L2_IRQ
153 select IRQ_MIPS_CPU
154 select RAW_IRQ_ACCESSORS
155 select DMA_NONCOHERENT
156 select SYS_SUPPORTS_32BIT_KERNEL
157 select SYS_SUPPORTS_LITTLE_ENDIAN
158 select SYS_SUPPORTS_BIG_ENDIAN
159 select SYS_SUPPORTS_HIGHMEM
160 select SYS_HAS_CPU_BMIPS32_3300
161 select SYS_HAS_CPU_BMIPS4350
162 select SYS_HAS_CPU_BMIPS4380
163 select SYS_HAS_CPU_BMIPS5000
164 select SWAP_IO_SPACE
165 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
166 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
167 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
168 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
169 help
170 Build a generic DT-based kernel image that boots on select
171 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
172 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
173 must be set appropriately for your board.
174
175config BCM47XX
176 bool "Broadcom BCM47XX based boards"
177 select ARCH_WANT_OPTIONAL_GPIOLIB
178 select BOOT_RAW
179 select CEVT_R4K
180 select CSRC_R4K
181 select DMA_NONCOHERENT
182 select HW_HAS_PCI
183 select IRQ_MIPS_CPU
184 select SYS_HAS_CPU_MIPS32_R1
185 select NO_EXCEPT_FILL
186 select SYS_SUPPORTS_32BIT_KERNEL
187 select SYS_SUPPORTS_LITTLE_ENDIAN
188 select SYS_SUPPORTS_MIPS16
189 select SYS_HAS_EARLY_PRINTK
190 select USE_GENERIC_EARLY_PRINTK_8250
191 select GPIOLIB
192 select LEDS_GPIO_REGISTER
193 select BCM47XX_NVRAM
194 help
195 Support for BCM47XX based boards
196
197config BCM63XX
198 bool "Broadcom BCM63XX based boards"
199 select BOOT_RAW
200 select CEVT_R4K
201 select CSRC_R4K
202 select SYNC_R4K
203 select DMA_NONCOHERENT
204 select IRQ_MIPS_CPU
205 select SYS_SUPPORTS_32BIT_KERNEL
206 select SYS_SUPPORTS_BIG_ENDIAN
207 select SYS_HAS_EARLY_PRINTK
208 select SWAP_IO_SPACE
209 select ARCH_REQUIRE_GPIOLIB
210 select HAVE_CLK
211 select MIPS_L1_CACHE_SHIFT_4
212 help
213 Support for BCM63XX based boards
214
215config MIPS_COBALT
216 bool "Cobalt Server"
217 select CEVT_R4K
218 select CSRC_R4K
219 select CEVT_GT641XX
220 select DMA_NONCOHERENT
221 select HW_HAS_PCI
222 select I8253
223 select I8259
224 select IRQ_MIPS_CPU
225 select IRQ_GT641XX
226 select PCI_GT64XXX_PCI0
227 select PCI
228 select SYS_HAS_CPU_NEVADA
229 select SYS_HAS_EARLY_PRINTK
230 select SYS_SUPPORTS_32BIT_KERNEL
231 select SYS_SUPPORTS_64BIT_KERNEL
232 select SYS_SUPPORTS_LITTLE_ENDIAN
233 select USE_GENERIC_EARLY_PRINTK_8250
234
235config MACH_DECSTATION
236 bool "DECstations"
237 select BOOT_ELF32
238 select CEVT_DS1287
239 select CEVT_R4K if CPU_R4X00
240 select CSRC_IOASIC
241 select CSRC_R4K if CPU_R4X00
242 select CPU_DADDI_WORKAROUNDS if 64BIT
243 select CPU_R4000_WORKAROUNDS if 64BIT
244 select CPU_R4400_WORKAROUNDS if 64BIT
245 select DMA_NONCOHERENT
246 select NO_IOPORT_MAP
247 select IRQ_MIPS_CPU
248 select SYS_HAS_CPU_R3000
249 select SYS_HAS_CPU_R4X00
250 select SYS_SUPPORTS_32BIT_KERNEL
251 select SYS_SUPPORTS_64BIT_KERNEL
252 select SYS_SUPPORTS_LITTLE_ENDIAN
253 select SYS_SUPPORTS_128HZ
254 select SYS_SUPPORTS_256HZ
255 select SYS_SUPPORTS_1024HZ
256 select MIPS_L1_CACHE_SHIFT_4
257 help
258 This enables support for DEC's MIPS based workstations. For details
259 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
260 DECstation porting pages on <http://decstation.unix-ag.org/>.
261
262 If you have one of the following DECstation Models you definitely
263 want to choose R4xx0 for the CPU Type:
264
265 DECstation 5000/50
266 DECstation 5000/150
267 DECstation 5000/260
268 DECsystem 5900/260
269
270 otherwise choose R3000.
271
272config MACH_JAZZ
273 bool "Jazz family of machines"
274 select FW_ARC
275 select FW_ARC32
276 select ARCH_MAY_HAVE_PC_FDC
277 select CEVT_R4K
278 select CSRC_R4K
279 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
280 select GENERIC_ISA_DMA
281 select HAVE_PCSPKR_PLATFORM
282 select IRQ_MIPS_CPU
283 select I8253
284 select I8259
285 select ISA
286 select SYS_HAS_CPU_R4X00
287 select SYS_SUPPORTS_32BIT_KERNEL
288 select SYS_SUPPORTS_64BIT_KERNEL
289 select SYS_SUPPORTS_100HZ
290 help
291 This a family of machines based on the MIPS R4030 chipset which was
292 used by several vendors to build RISC/os and Windows NT workstations.
293 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
294 Olivetti M700-10 workstations.
295
296config MACH_INGENIC
297 bool "Ingenic SoC based machines"
298 select SYS_SUPPORTS_32BIT_KERNEL
299 select SYS_SUPPORTS_LITTLE_ENDIAN
300 select SYS_SUPPORTS_ZBOOT_UART16550
301 select DMA_NONCOHERENT
302 select IRQ_MIPS_CPU
303 select ARCH_REQUIRE_GPIOLIB
304 select COMMON_CLK
305 select GENERIC_IRQ_CHIP
306 select BUILTIN_DTB
307 select USE_OF
308 select LIBFDT
309
310config LANTIQ
311 bool "Lantiq based platforms"
312 select DMA_NONCOHERENT
313 select IRQ_MIPS_CPU
314 select CEVT_R4K
315 select CSRC_R4K
316 select SYS_HAS_CPU_MIPS32_R1
317 select SYS_HAS_CPU_MIPS32_R2
318 select SYS_SUPPORTS_BIG_ENDIAN
319 select SYS_SUPPORTS_32BIT_KERNEL
320 select SYS_SUPPORTS_MIPS16
321 select SYS_SUPPORTS_MULTITHREADING
322 select SYS_HAS_EARLY_PRINTK
323 select ARCH_REQUIRE_GPIOLIB
324 select SWAP_IO_SPACE
325 select BOOT_RAW
326 select HAVE_MACH_CLKDEV
327 select CLKDEV_LOOKUP
328 select USE_OF
329 select PINCTRL
330 select PINCTRL_LANTIQ
331 select ARCH_HAS_RESET_CONTROLLER
332 select RESET_CONTROLLER
333
334config LASAT
335 bool "LASAT Networks platforms"
336 select CEVT_R4K
337 select CRC32
338 select CSRC_R4K
339 select DMA_NONCOHERENT
340 select SYS_HAS_EARLY_PRINTK
341 select HW_HAS_PCI
342 select IRQ_MIPS_CPU
343 select PCI_GT64XXX_PCI0
344 select MIPS_NILE4
345 select R5000_CPU_SCACHE
346 select SYS_HAS_CPU_R5000
347 select SYS_SUPPORTS_32BIT_KERNEL
348 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
349 select SYS_SUPPORTS_LITTLE_ENDIAN
350
351config MACH_LOONGSON32
352 bool "Loongson-1 family of machines"
353 select SYS_SUPPORTS_ZBOOT
354 help
355 This enables support for the Loongson-1 family of machines.
356
357 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
358 the Institute of Computing Technology (ICT), Chinese Academy of
359 Sciences (CAS).
360
361config MACH_LOONGSON64
362 bool "Loongson-2/3 family of machines"
363 select SYS_SUPPORTS_ZBOOT
364 help
365 This enables the support of Loongson-2/3 family of machines.
366
367 Loongson-2 is a family of single-core CPUs and Loongson-3 is a
368 family of multi-core CPUs. They are both 64-bit general-purpose
369 MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute
370 of Computing Technology (ICT), Chinese Academy of Sciences (CAS)
371 in the People's Republic of China. The chief architect is Professor
372 Weiwu Hu.
373
374config MACH_PISTACHIO
375 bool "IMG Pistachio SoC based boards"
376 select ARCH_REQUIRE_GPIOLIB
377 select BOOT_ELF32
378 select BOOT_RAW
379 select CEVT_R4K
380 select CLKSRC_MIPS_GIC
381 select COMMON_CLK
382 select CSRC_R4K
383 select DMA_MAYBE_COHERENT
384 select IRQ_MIPS_CPU
385 select LIBFDT
386 select MFD_SYSCON
387 select MIPS_CPU_SCACHE
388 select MIPS_GIC
389 select PINCTRL
390 select REGULATOR
391 select SYS_HAS_CPU_MIPS32_R2
392 select SYS_SUPPORTS_32BIT_KERNEL
393 select SYS_SUPPORTS_LITTLE_ENDIAN
394 select SYS_SUPPORTS_MIPS_CPS
395 select SYS_SUPPORTS_MULTITHREADING
396 select SYS_SUPPORTS_ZBOOT
397 select SYS_HAS_EARLY_PRINTK
398 select USE_GENERIC_EARLY_PRINTK_8250
399 select USE_OF
400 help
401 This enables support for the IMG Pistachio SoC platform.
402
403config MIPS_MALTA
404 bool "MIPS Malta board"
405 select ARCH_MAY_HAVE_PC_FDC
406 select BOOT_ELF32
407 select BOOT_RAW
408 select BUILTIN_DTB
409 select CEVT_R4K
410 select CSRC_R4K
411 select CLKSRC_MIPS_GIC
412 select DMA_MAYBE_COHERENT
413 select GENERIC_ISA_DMA
414 select HAVE_PCSPKR_PLATFORM
415 select IRQ_MIPS_CPU
416 select MIPS_GIC
417 select HW_HAS_PCI
418 select I8253
419 select I8259
420 select MIPS_BONITO64
421 select MIPS_CPU_SCACHE
422 select MIPS_L1_CACHE_SHIFT_6
423 select PCI_GT64XXX_PCI0
424 select MIPS_MSC
425 select SWAP_IO_SPACE
426 select SYS_HAS_CPU_MIPS32_R1
427 select SYS_HAS_CPU_MIPS32_R2
428 select SYS_HAS_CPU_MIPS32_R3_5
429 select SYS_HAS_CPU_MIPS32_R5
430 select SYS_HAS_CPU_MIPS32_R6
431 select SYS_HAS_CPU_MIPS64_R1
432 select SYS_HAS_CPU_MIPS64_R2
433 select SYS_HAS_CPU_MIPS64_R6
434 select SYS_HAS_CPU_NEVADA
435 select SYS_HAS_CPU_RM7000
436 select SYS_SUPPORTS_32BIT_KERNEL
437 select SYS_SUPPORTS_64BIT_KERNEL
438 select SYS_SUPPORTS_BIG_ENDIAN
439 select SYS_SUPPORTS_HIGHMEM
440 select SYS_SUPPORTS_LITTLE_ENDIAN
441 select SYS_SUPPORTS_MICROMIPS
442 select SYS_SUPPORTS_MIPS_CMP
443 select SYS_SUPPORTS_MIPS_CPS
444 select SYS_SUPPORTS_MIPS16
445 select SYS_SUPPORTS_MULTITHREADING
446 select SYS_SUPPORTS_SMARTMIPS
447 select SYS_SUPPORTS_ZBOOT
448 select USE_OF
449 select ZONE_DMA32 if 64BIT
450 help
451 This enables support for the MIPS Technologies Malta evaluation
452 board.
453
454config MIPS_SEAD3
455 bool "MIPS SEAD3 board"
456 select BOOT_ELF32
457 select BOOT_RAW
458 select BUILTIN_DTB
459 select CEVT_R4K
460 select CSRC_R4K
461 select CLKSRC_MIPS_GIC
462 select CPU_MIPSR2_IRQ_VI
463 select CPU_MIPSR2_IRQ_EI
464 select DMA_NONCOHERENT
465 select IRQ_MIPS_CPU
466 select MIPS_GIC
467 select LIBFDT
468 select MIPS_MSC
469 select SYS_HAS_CPU_MIPS32_R1
470 select SYS_HAS_CPU_MIPS32_R2
471 select SYS_HAS_CPU_MIPS64_R1
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 select SYS_SUPPORTS_LITTLE_ENDIAN
477 select SYS_SUPPORTS_SMARTMIPS
478 select SYS_SUPPORTS_MICROMIPS
479 select SYS_SUPPORTS_MIPS16
480 select USB_EHCI_BIG_ENDIAN_DESC
481 select USB_EHCI_BIG_ENDIAN_MMIO
482 select USE_OF
483 help
484 This enables support for the MIPS Technologies SEAD3 evaluation
485 board.
486
487config NEC_MARKEINS
488 bool "NEC EMMA2RH Mark-eins board"
489 select SOC_EMMA2RH
490 select HW_HAS_PCI
491 help
492 This enables support for the NEC Electronics Mark-eins boards.
493
494config MACH_VR41XX
495 bool "NEC VR4100 series based machines"
496 select CEVT_R4K
497 select CSRC_R4K
498 select SYS_HAS_CPU_VR41XX
499 select SYS_SUPPORTS_MIPS16
500 select ARCH_REQUIRE_GPIOLIB
501
502config NXP_STB220
503 bool "NXP STB220 board"
504 select SOC_PNX833X
505 help
506 Support for NXP Semiconductors STB220 Development Board.
507
508config NXP_STB225
509 bool "NXP 225 board"
510 select SOC_PNX833X
511 select SOC_PNX8335
512 help
513 Support for NXP Semiconductors STB225 Development Board.
514
515config PMC_MSP
516 bool "PMC-Sierra MSP chipsets"
517 select CEVT_R4K
518 select CSRC_R4K
519 select DMA_NONCOHERENT
520 select SWAP_IO_SPACE
521 select NO_EXCEPT_FILL
522 select BOOT_RAW
523 select SYS_HAS_CPU_MIPS32_R1
524 select SYS_HAS_CPU_MIPS32_R2
525 select SYS_SUPPORTS_32BIT_KERNEL
526 select SYS_SUPPORTS_BIG_ENDIAN
527 select SYS_SUPPORTS_MIPS16
528 select IRQ_MIPS_CPU
529 select SERIAL_8250
530 select SERIAL_8250_CONSOLE
531 select USB_EHCI_BIG_ENDIAN_MMIO
532 select USB_EHCI_BIG_ENDIAN_DESC
533 help
534 This adds support for the PMC-Sierra family of Multi-Service
535 Processor System-On-A-Chips. These parts include a number
536 of integrated peripherals, interfaces and DSPs in addition to
537 a variety of MIPS cores.
538
539config RALINK
540 bool "Ralink based machines"
541 select CEVT_R4K
542 select CSRC_R4K
543 select BOOT_RAW
544 select DMA_NONCOHERENT
545 select IRQ_MIPS_CPU
546 select USE_OF
547 select SYS_HAS_CPU_MIPS32_R1
548 select SYS_HAS_CPU_MIPS32_R2
549 select SYS_SUPPORTS_32BIT_KERNEL
550 select SYS_SUPPORTS_LITTLE_ENDIAN
551 select SYS_SUPPORTS_MIPS16
552 select SYS_HAS_EARLY_PRINTK
553 select HAVE_MACH_CLKDEV
554 select CLKDEV_LOOKUP
555 select ARCH_HAS_RESET_CONTROLLER
556 select RESET_CONTROLLER
557
558config SGI_IP22
559 bool "SGI IP22 (Indy/Indigo2)"
560 select FW_ARC
561 select FW_ARC32
562 select BOOT_ELF32
563 select CEVT_R4K
564 select CSRC_R4K
565 select DEFAULT_SGI_PARTITION
566 select DMA_NONCOHERENT
567 select HW_HAS_EISA
568 select I8253
569 select I8259
570 select IP22_CPU_SCACHE
571 select IRQ_MIPS_CPU
572 select GENERIC_ISA_DMA_SUPPORT_BROKEN
573 select SGI_HAS_I8042
574 select SGI_HAS_INDYDOG
575 select SGI_HAS_HAL2
576 select SGI_HAS_SEEQ
577 select SGI_HAS_WD93
578 select SGI_HAS_ZILOG
579 select SWAP_IO_SPACE
580 select SYS_HAS_CPU_R4X00
581 select SYS_HAS_CPU_R5000
582 #
583 # Disable EARLY_PRINTK for now since it leads to overwritten prom
584 # memory during early boot on some machines.
585 #
586 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
587 # for a more details discussion
588 #
589 # select SYS_HAS_EARLY_PRINTK
590 select SYS_SUPPORTS_32BIT_KERNEL
591 select SYS_SUPPORTS_64BIT_KERNEL
592 select SYS_SUPPORTS_BIG_ENDIAN
593 select MIPS_L1_CACHE_SHIFT_7
594 help
595 This are the SGI Indy, Challenge S and Indigo2, as well as certain
596 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
597 that runs on these, say Y here.
598
599config SGI_IP27
600 bool "SGI IP27 (Origin200/2000)"
601 select FW_ARC
602 select FW_ARC64
603 select BOOT_ELF64
604 select DEFAULT_SGI_PARTITION
605 select DMA_COHERENT
606 select SYS_HAS_EARLY_PRINTK
607 select HW_HAS_PCI
608 select NR_CPUS_DEFAULT_64
609 select SYS_HAS_CPU_R10000
610 select SYS_SUPPORTS_64BIT_KERNEL
611 select SYS_SUPPORTS_BIG_ENDIAN
612 select SYS_SUPPORTS_NUMA
613 select SYS_SUPPORTS_SMP
614 select MIPS_L1_CACHE_SHIFT_7
615 help
616 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
617 workstations. To compile a Linux kernel that runs on these, say Y
618 here.
619
620config SGI_IP28
621 bool "SGI IP28 (Indigo2 R10k)"
622 select FW_ARC
623 select FW_ARC64
624 select BOOT_ELF64
625 select CEVT_R4K
626 select CSRC_R4K
627 select DEFAULT_SGI_PARTITION
628 select DMA_NONCOHERENT
629 select GENERIC_ISA_DMA_SUPPORT_BROKEN
630 select IRQ_MIPS_CPU
631 select HW_HAS_EISA
632 select I8253
633 select I8259
634 select SGI_HAS_I8042
635 select SGI_HAS_INDYDOG
636 select SGI_HAS_HAL2
637 select SGI_HAS_SEEQ
638 select SGI_HAS_WD93
639 select SGI_HAS_ZILOG
640 select SWAP_IO_SPACE
641 select SYS_HAS_CPU_R10000
642 #
643 # Disable EARLY_PRINTK for now since it leads to overwritten prom
644 # memory during early boot on some machines.
645 #
646 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
647 # for a more details discussion
648 #
649 # select SYS_HAS_EARLY_PRINTK
650 select SYS_SUPPORTS_64BIT_KERNEL
651 select SYS_SUPPORTS_BIG_ENDIAN
652 select MIPS_L1_CACHE_SHIFT_7
653 help
654 This is the SGI Indigo2 with R10000 processor. To compile a Linux
655 kernel that runs on these, say Y here.
656
657config SGI_IP32
658 bool "SGI IP32 (O2)"
659 select FW_ARC
660 select FW_ARC32
661 select BOOT_ELF32
662 select CEVT_R4K
663 select CSRC_R4K
664 select DMA_NONCOHERENT
665 select HW_HAS_PCI
666 select IRQ_MIPS_CPU
667 select R5000_CPU_SCACHE
668 select RM7000_CPU_SCACHE
669 select SYS_HAS_CPU_R5000
670 select SYS_HAS_CPU_R10000 if BROKEN
671 select SYS_HAS_CPU_RM7000
672 select SYS_HAS_CPU_NEVADA
673 select SYS_SUPPORTS_64BIT_KERNEL
674 select SYS_SUPPORTS_BIG_ENDIAN
675 help
676 If you want this kernel to run on SGI O2 workstation, say Y here.
677
678config SIBYTE_CRHINE
679 bool "Sibyte BCM91120C-CRhine"
680 select BOOT_ELF32
681 select DMA_COHERENT
682 select SIBYTE_BCM1120
683 select SWAP_IO_SPACE
684 select SYS_HAS_CPU_SB1
685 select SYS_SUPPORTS_BIG_ENDIAN
686 select SYS_SUPPORTS_LITTLE_ENDIAN
687
688config SIBYTE_CARMEL
689 bool "Sibyte BCM91120x-Carmel"
690 select BOOT_ELF32
691 select DMA_COHERENT
692 select SIBYTE_BCM1120
693 select SWAP_IO_SPACE
694 select SYS_HAS_CPU_SB1
695 select SYS_SUPPORTS_BIG_ENDIAN
696 select SYS_SUPPORTS_LITTLE_ENDIAN
697
698config SIBYTE_CRHONE
699 bool "Sibyte BCM91125C-CRhone"
700 select BOOT_ELF32
701 select DMA_COHERENT
702 select SIBYTE_BCM1125
703 select SWAP_IO_SPACE
704 select SYS_HAS_CPU_SB1
705 select SYS_SUPPORTS_BIG_ENDIAN
706 select SYS_SUPPORTS_HIGHMEM
707 select SYS_SUPPORTS_LITTLE_ENDIAN
708
709config SIBYTE_RHONE
710 bool "Sibyte BCM91125E-Rhone"
711 select BOOT_ELF32
712 select DMA_COHERENT
713 select SIBYTE_BCM1125H
714 select SWAP_IO_SPACE
715 select SYS_HAS_CPU_SB1
716 select SYS_SUPPORTS_BIG_ENDIAN
717 select SYS_SUPPORTS_LITTLE_ENDIAN
718
719config SIBYTE_SWARM
720 bool "Sibyte BCM91250A-SWARM"
721 select BOOT_ELF32
722 select DMA_COHERENT
723 select HAVE_PATA_PLATFORM
724 select SIBYTE_SB1250
725 select SWAP_IO_SPACE
726 select SYS_HAS_CPU_SB1
727 select SYS_SUPPORTS_BIG_ENDIAN
728 select SYS_SUPPORTS_HIGHMEM
729 select SYS_SUPPORTS_LITTLE_ENDIAN
730 select ZONE_DMA32 if 64BIT
731
732config SIBYTE_LITTLESUR
733 bool "Sibyte BCM91250C2-LittleSur"
734 select BOOT_ELF32
735 select DMA_COHERENT
736 select HAVE_PATA_PLATFORM
737 select SIBYTE_SB1250
738 select SWAP_IO_SPACE
739 select SYS_HAS_CPU_SB1
740 select SYS_SUPPORTS_BIG_ENDIAN
741 select SYS_SUPPORTS_HIGHMEM
742 select SYS_SUPPORTS_LITTLE_ENDIAN
743
744config SIBYTE_SENTOSA
745 bool "Sibyte BCM91250E-Sentosa"
746 select BOOT_ELF32
747 select DMA_COHERENT
748 select SIBYTE_SB1250
749 select SWAP_IO_SPACE
750 select SYS_HAS_CPU_SB1
751 select SYS_SUPPORTS_BIG_ENDIAN
752 select SYS_SUPPORTS_LITTLE_ENDIAN
753
754config SIBYTE_BIGSUR
755 bool "Sibyte BCM91480B-BigSur"
756 select BOOT_ELF32
757 select DMA_COHERENT
758 select NR_CPUS_DEFAULT_4
759 select SIBYTE_BCM1x80
760 select SWAP_IO_SPACE
761 select SYS_HAS_CPU_SB1
762 select SYS_SUPPORTS_BIG_ENDIAN
763 select SYS_SUPPORTS_HIGHMEM
764 select SYS_SUPPORTS_LITTLE_ENDIAN
765 select ZONE_DMA32 if 64BIT
766
767config SNI_RM
768 bool "SNI RM200/300/400"
769 select FW_ARC if CPU_LITTLE_ENDIAN
770 select FW_ARC32 if CPU_LITTLE_ENDIAN
771 select FW_SNIPROM if CPU_BIG_ENDIAN
772 select ARCH_MAY_HAVE_PC_FDC
773 select BOOT_ELF32
774 select CEVT_R4K
775 select CSRC_R4K
776 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
777 select DMA_NONCOHERENT
778 select GENERIC_ISA_DMA
779 select HAVE_PCSPKR_PLATFORM
780 select HW_HAS_EISA
781 select HW_HAS_PCI
782 select IRQ_MIPS_CPU
783 select I8253
784 select I8259
785 select ISA
786 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
787 select SYS_HAS_CPU_R4X00
788 select SYS_HAS_CPU_R5000
789 select SYS_HAS_CPU_R10000
790 select R5000_CPU_SCACHE
791 select SYS_HAS_EARLY_PRINTK
792 select SYS_SUPPORTS_32BIT_KERNEL
793 select SYS_SUPPORTS_64BIT_KERNEL
794 select SYS_SUPPORTS_BIG_ENDIAN
795 select SYS_SUPPORTS_HIGHMEM
796 select SYS_SUPPORTS_LITTLE_ENDIAN
797 help
798 The SNI RM200/300/400 are MIPS-based machines manufactured by
799 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
800 Technology and now in turn merged with Fujitsu. Say Y here to
801 support this machine type.
802
803config MACH_TX39XX
804 bool "Toshiba TX39 series based machines"
805
806config MACH_TX49XX
807 bool "Toshiba TX49 series based machines"
808
809config MIKROTIK_RB532
810 bool "Mikrotik RB532 boards"
811 select CEVT_R4K
812 select CSRC_R4K
813 select DMA_NONCOHERENT
814 select HW_HAS_PCI
815 select IRQ_MIPS_CPU
816 select SYS_HAS_CPU_MIPS32_R1
817 select SYS_SUPPORTS_32BIT_KERNEL
818 select SYS_SUPPORTS_LITTLE_ENDIAN
819 select SWAP_IO_SPACE
820 select BOOT_RAW
821 select ARCH_REQUIRE_GPIOLIB
822 select MIPS_L1_CACHE_SHIFT_4
823 help
824 Support the Mikrotik(tm) RouterBoard 532 series,
825 based on the IDT RC32434 SoC.
826
827config CAVIUM_OCTEON_SOC
828 bool "Cavium Networks Octeon SoC based boards"
829 select CEVT_R4K
830 select ARCH_PHYS_ADDR_T_64BIT
831 select DMA_COHERENT
832 select SYS_SUPPORTS_64BIT_KERNEL
833 select SYS_SUPPORTS_BIG_ENDIAN
834 select EDAC_SUPPORT
835 select EDAC_ATOMIC_SCRUB
836 select SYS_SUPPORTS_LITTLE_ENDIAN
837 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
838 select SYS_HAS_EARLY_PRINTK
839 select SYS_HAS_CPU_CAVIUM_OCTEON
840 select SWAP_IO_SPACE
841 select HW_HAS_PCI
842 select ZONE_DMA32
843 select HOLES_IN_ZONE
844 select ARCH_REQUIRE_GPIOLIB
845 select LIBFDT
846 select USE_OF
847 select ARCH_SPARSEMEM_ENABLE
848 select SYS_SUPPORTS_SMP
849 select NR_CPUS_DEFAULT_16
850 select BUILTIN_DTB
851 select MTD_COMPLEX_MAPPINGS
852 help
853 This option supports all of the Octeon reference boards from Cavium
854 Networks. It builds a kernel that dynamically determines the Octeon
855 CPU type and supports all known board reference implementations.
856 Some of the supported boards are:
857 EBT3000
858 EBH3000
859 EBH3100
860 Thunder
861 Kodama
862 Hikari
863 Say Y here for most Octeon reference boards.
864
865config NLM_XLR_BOARD
866 bool "Netlogic XLR/XLS based systems"
867 select BOOT_ELF32
868 select NLM_COMMON
869 select SYS_HAS_CPU_XLR
870 select SYS_SUPPORTS_SMP
871 select HW_HAS_PCI
872 select SWAP_IO_SPACE
873 select SYS_SUPPORTS_32BIT_KERNEL
874 select SYS_SUPPORTS_64BIT_KERNEL
875 select ARCH_PHYS_ADDR_T_64BIT
876 select SYS_SUPPORTS_BIG_ENDIAN
877 select SYS_SUPPORTS_HIGHMEM
878 select DMA_COHERENT
879 select NR_CPUS_DEFAULT_32
880 select CEVT_R4K
881 select CSRC_R4K
882 select IRQ_MIPS_CPU
883 select ZONE_DMA32 if 64BIT
884 select SYNC_R4K
885 select SYS_HAS_EARLY_PRINTK
886 select SYS_SUPPORTS_ZBOOT
887 select SYS_SUPPORTS_ZBOOT_UART16550
888 help
889 Support for systems based on Netlogic XLR and XLS processors.
890 Say Y here if you have a XLR or XLS based board.
891
892config NLM_XLP_BOARD
893 bool "Netlogic XLP based systems"
894 select BOOT_ELF32
895 select NLM_COMMON
896 select SYS_HAS_CPU_XLP
897 select SYS_SUPPORTS_SMP
898 select HW_HAS_PCI
899 select SYS_SUPPORTS_32BIT_KERNEL
900 select SYS_SUPPORTS_64BIT_KERNEL
901 select ARCH_PHYS_ADDR_T_64BIT
902 select SYS_SUPPORTS_BIG_ENDIAN
903 select SYS_SUPPORTS_LITTLE_ENDIAN
904 select SYS_SUPPORTS_HIGHMEM
905 select DMA_COHERENT
906 select NR_CPUS_DEFAULT_32
907 select CEVT_R4K
908 select CSRC_R4K
909 select IRQ_MIPS_CPU
910 select ZONE_DMA32 if 64BIT
911 select SYNC_R4K
912 select SYS_HAS_EARLY_PRINTK
913 select USE_OF
914 select SYS_SUPPORTS_ZBOOT
915 select SYS_SUPPORTS_ZBOOT_UART16550
916 help
917 This board is based on Netlogic XLP Processor.
918 Say Y here if you have a XLP based board.
919
920config MIPS_PARAVIRT
921 bool "Para-Virtualized guest system"
922 select CEVT_R4K
923 select CSRC_R4K
924 select DMA_COHERENT
925 select SYS_SUPPORTS_64BIT_KERNEL
926 select SYS_SUPPORTS_32BIT_KERNEL
927 select SYS_SUPPORTS_BIG_ENDIAN
928 select SYS_SUPPORTS_SMP
929 select NR_CPUS_DEFAULT_4
930 select SYS_HAS_EARLY_PRINTK
931 select SYS_HAS_CPU_MIPS32_R2
932 select SYS_HAS_CPU_MIPS64_R2
933 select SYS_HAS_CPU_CAVIUM_OCTEON
934 select HW_HAS_PCI
935 select SWAP_IO_SPACE
936 help
937 This option supports guest running under ????
938
939endchoice
940
941source "arch/mips/alchemy/Kconfig"
942source "arch/mips/ath25/Kconfig"
943source "arch/mips/ath79/Kconfig"
944source "arch/mips/bcm47xx/Kconfig"
945source "arch/mips/bcm63xx/Kconfig"
946source "arch/mips/bmips/Kconfig"
947source "arch/mips/jazz/Kconfig"
948source "arch/mips/jz4740/Kconfig"
949source "arch/mips/lantiq/Kconfig"
950source "arch/mips/lasat/Kconfig"
951source "arch/mips/pmcs-msp71xx/Kconfig"
952source "arch/mips/ralink/Kconfig"
953source "arch/mips/sgi-ip27/Kconfig"
954source "arch/mips/sibyte/Kconfig"
955source "arch/mips/txx9/Kconfig"
956source "arch/mips/vr41xx/Kconfig"
957source "arch/mips/cavium-octeon/Kconfig"
958source "arch/mips/loongson32/Kconfig"
959source "arch/mips/loongson64/Kconfig"
960source "arch/mips/netlogic/Kconfig"
961source "arch/mips/paravirt/Kconfig"
962
963endmenu
964
965config RWSEM_GENERIC_SPINLOCK
966 bool
967 default y
968
969config RWSEM_XCHGADD_ALGORITHM
970 bool
971
972config ARCH_HAS_ILOG2_U32
973 bool
974 default n
975
976config ARCH_HAS_ILOG2_U64
977 bool
978 default n
979
980config GENERIC_HWEIGHT
981 bool
982 default y
983
984config GENERIC_CALIBRATE_DELAY
985 bool
986 default y
987
988config SCHED_OMIT_FRAME_POINTER
989 bool
990 default y
991
992#
993# Select some configuration options automatically based on user selections.
994#
995config FW_ARC
996 bool
997
998config ARCH_MAY_HAVE_PC_FDC
999 bool
1000
1001config BOOT_RAW
1002 bool
1003
1004config CEVT_BCM1480
1005 bool
1006
1007config CEVT_DS1287
1008 bool
1009
1010config CEVT_GT641XX
1011 bool
1012
1013config CEVT_R4K
1014 bool
1015
1016config CEVT_SB1250
1017 bool
1018
1019config CEVT_TXX9
1020 bool
1021
1022config CSRC_BCM1480
1023 bool
1024
1025config CSRC_IOASIC
1026 bool
1027
1028config CSRC_R4K
1029 bool
1030
1031config CSRC_SB1250
1032 bool
1033
1034config GPIO_TXX9
1035 select ARCH_REQUIRE_GPIOLIB
1036 bool
1037
1038config FW_CFE
1039 bool
1040
1041config ARCH_DMA_ADDR_T_64BIT
1042 def_bool (HIGHMEM && ARCH_PHYS_ADDR_T_64BIT) || 64BIT
1043
1044config DMA_MAYBE_COHERENT
1045 select DMA_NONCOHERENT
1046 bool
1047
1048config DMA_COHERENT
1049 bool
1050
1051config DMA_NONCOHERENT
1052 bool
1053 select NEED_DMA_MAP_STATE
1054
1055config NEED_DMA_MAP_STATE
1056 bool
1057
1058config SYS_HAS_EARLY_PRINTK
1059 bool
1060
1061config HOTPLUG_CPU
1062 bool "Support for hot-pluggable CPUs"
1063 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
1064 help
1065 Say Y here to allow turning CPUs off and on. CPUs can be
1066 controlled through /sys/devices/system/cpu.
1067 (Note: power management support will enable this option
1068 automatically on SMP systems. )
1069 Say N if you want to disable CPU hotplug.
1070
1071config SYS_SUPPORTS_HOTPLUG_CPU
1072 bool
1073
1074config I8259
1075 bool
1076 select IRQ_DOMAIN
1077
1078config MIPS_BONITO64
1079 bool
1080
1081config MIPS_MSC
1082 bool
1083
1084config MIPS_NILE4
1085 bool
1086
1087config SYNC_R4K
1088 bool
1089
1090config MIPS_MACHINE
1091 def_bool n
1092
1093config NO_IOPORT_MAP
1094 def_bool n
1095
1096config GENERIC_CSUM
1097 bool
1098
1099config GENERIC_ISA_DMA
1100 bool
1101 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1102 select ISA_DMA_API
1103
1104config GENERIC_ISA_DMA_SUPPORT_BROKEN
1105 bool
1106 select GENERIC_ISA_DMA
1107
1108config ISA_DMA_API
1109 bool
1110
1111config HOLES_IN_ZONE
1112 bool
1113
1114#
1115# Endianness selection. Sufficiently obscure so many users don't know what to
1116# answer,so we try hard to limit the available choices. Also the use of a
1117# choice statement should be more obvious to the user.
1118#
1119choice
1120 prompt "Endianness selection"
1121 help
1122 Some MIPS machines can be configured for either little or big endian
1123 byte order. These modes require different kernels and a different
1124 Linux distribution. In general there is one preferred byteorder for a
1125 particular system but some systems are just as commonly used in the
1126 one or the other endianness.
1127
1128config CPU_BIG_ENDIAN
1129 bool "Big endian"
1130 depends on SYS_SUPPORTS_BIG_ENDIAN
1131
1132config CPU_LITTLE_ENDIAN
1133 bool "Little endian"
1134 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1135
1136endchoice
1137
1138config EXPORT_UASM
1139 bool
1140
1141config SYS_SUPPORTS_APM_EMULATION
1142 bool
1143
1144config SYS_SUPPORTS_BIG_ENDIAN
1145 bool
1146
1147config SYS_SUPPORTS_LITTLE_ENDIAN
1148 bool
1149
1150config SYS_SUPPORTS_HUGETLBFS
1151 bool
1152 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1153 default y
1154
1155config MIPS_HUGE_TLB_SUPPORT
1156 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1157
1158config IRQ_CPU_RM7K
1159 bool
1160
1161config IRQ_MSP_SLP
1162 bool
1163
1164config IRQ_MSP_CIC
1165 bool
1166
1167config IRQ_TXX9
1168 bool
1169
1170config IRQ_GT641XX
1171 bool
1172
1173config PCI_GT64XXX_PCI0
1174 bool
1175
1176config NO_EXCEPT_FILL
1177 bool
1178
1179config SOC_EMMA2RH
1180 bool
1181 select CEVT_R4K
1182 select CSRC_R4K
1183 select DMA_NONCOHERENT
1184 select IRQ_MIPS_CPU
1185 select SWAP_IO_SPACE
1186 select SYS_HAS_CPU_R5500
1187 select SYS_SUPPORTS_32BIT_KERNEL
1188 select SYS_SUPPORTS_64BIT_KERNEL
1189 select SYS_SUPPORTS_BIG_ENDIAN
1190
1191config SOC_PNX833X
1192 bool
1193 select CEVT_R4K
1194 select CSRC_R4K
1195 select IRQ_MIPS_CPU
1196 select DMA_NONCOHERENT
1197 select SYS_HAS_CPU_MIPS32_R2
1198 select SYS_SUPPORTS_32BIT_KERNEL
1199 select SYS_SUPPORTS_LITTLE_ENDIAN
1200 select SYS_SUPPORTS_BIG_ENDIAN
1201 select SYS_SUPPORTS_MIPS16
1202 select CPU_MIPSR2_IRQ_VI
1203
1204config SOC_PNX8335
1205 bool
1206 select SOC_PNX833X
1207
1208config MIPS_SPRAM
1209 bool
1210
1211config SWAP_IO_SPACE
1212 bool
1213
1214config SGI_HAS_INDYDOG
1215 bool
1216
1217config SGI_HAS_HAL2
1218 bool
1219
1220config SGI_HAS_SEEQ
1221 bool
1222
1223config SGI_HAS_WD93
1224 bool
1225
1226config SGI_HAS_ZILOG
1227 bool
1228
1229config SGI_HAS_I8042
1230 bool
1231
1232config DEFAULT_SGI_PARTITION
1233 bool
1234
1235config FW_ARC32
1236 bool
1237
1238config FW_SNIPROM
1239 bool
1240
1241config BOOT_ELF32
1242 bool
1243
1244config MIPS_L1_CACHE_SHIFT_4
1245 bool
1246
1247config MIPS_L1_CACHE_SHIFT_5
1248 bool
1249
1250config MIPS_L1_CACHE_SHIFT_6
1251 bool
1252
1253config MIPS_L1_CACHE_SHIFT_7
1254 bool
1255
1256config MIPS_L1_CACHE_SHIFT
1257 int
1258 default "7" if MIPS_L1_CACHE_SHIFT_7
1259 default "6" if MIPS_L1_CACHE_SHIFT_6
1260 default "5" if MIPS_L1_CACHE_SHIFT_5
1261 default "4" if MIPS_L1_CACHE_SHIFT_4
1262 default "5"
1263
1264config HAVE_STD_PC_SERIAL_PORT
1265 bool
1266
1267config ARC_CONSOLE
1268 bool "ARC console support"
1269 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1270
1271config ARC_MEMORY
1272 bool
1273 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1274 default y
1275
1276config ARC_PROMLIB
1277 bool
1278 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1279 default y
1280
1281config FW_ARC64
1282 bool
1283
1284config BOOT_ELF64
1285 bool
1286
1287menu "CPU selection"
1288
1289choice
1290 prompt "CPU type"
1291 default CPU_R4X00
1292
1293config CPU_LOONGSON3
1294 bool "Loongson 3 CPU"
1295 depends on SYS_HAS_CPU_LOONGSON3
1296 select CPU_SUPPORTS_64BIT_KERNEL
1297 select CPU_SUPPORTS_HIGHMEM
1298 select CPU_SUPPORTS_HUGEPAGES
1299 select WEAK_ORDERING
1300 select WEAK_REORDERING_BEYOND_LLSC
1301 select ARCH_REQUIRE_GPIOLIB
1302 help
1303 The Loongson 3 processor implements the MIPS64R2 instruction
1304 set with many extensions.
1305
1306config CPU_LOONGSON2E
1307 bool "Loongson 2E"
1308 depends on SYS_HAS_CPU_LOONGSON2E
1309 select CPU_LOONGSON2
1310 help
1311 The Loongson 2E processor implements the MIPS III instruction set
1312 with many extensions.
1313
1314 It has an internal FPGA northbridge, which is compatible to
1315 bonito64.
1316
1317config CPU_LOONGSON2F
1318 bool "Loongson 2F"
1319 depends on SYS_HAS_CPU_LOONGSON2F
1320 select CPU_LOONGSON2
1321 select ARCH_REQUIRE_GPIOLIB
1322 help
1323 The Loongson 2F processor implements the MIPS III instruction set
1324 with many extensions.
1325
1326 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1327 have a similar programming interface with FPGA northbridge used in
1328 Loongson2E.
1329
1330config CPU_LOONGSON1B
1331 bool "Loongson 1B"
1332 depends on SYS_HAS_CPU_LOONGSON1B
1333 select CPU_LOONGSON1
1334 help
1335 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1336 release 2 instruction set.
1337
1338config CPU_MIPS32_R1
1339 bool "MIPS32 Release 1"
1340 depends on SYS_HAS_CPU_MIPS32_R1
1341 select CPU_HAS_PREFETCH
1342 select CPU_SUPPORTS_32BIT_KERNEL
1343 select CPU_SUPPORTS_HIGHMEM
1344 help
1345 Choose this option to build a kernel for release 1 or later of the
1346 MIPS32 architecture. Most modern embedded systems with a 32-bit
1347 MIPS processor are based on a MIPS32 processor. If you know the
1348 specific type of processor in your system, choose those that one
1349 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1350 Release 2 of the MIPS32 architecture is available since several
1351 years so chances are you even have a MIPS32 Release 2 processor
1352 in which case you should choose CPU_MIPS32_R2 instead for better
1353 performance.
1354
1355config CPU_MIPS32_R2
1356 bool "MIPS32 Release 2"
1357 depends on SYS_HAS_CPU_MIPS32_R2
1358 select CPU_HAS_PREFETCH
1359 select CPU_SUPPORTS_32BIT_KERNEL
1360 select CPU_SUPPORTS_HIGHMEM
1361 select CPU_SUPPORTS_MSA
1362 select HAVE_KVM
1363 help
1364 Choose this option to build a kernel for release 2 or later of the
1365 MIPS32 architecture. Most modern embedded systems with a 32-bit
1366 MIPS processor are based on a MIPS32 processor. If you know the
1367 specific type of processor in your system, choose those that one
1368 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1369
1370config CPU_MIPS32_R6
1371 bool "MIPS32 Release 6 (EXPERIMENTAL)"
1372 depends on SYS_HAS_CPU_MIPS32_R6
1373 select CPU_HAS_PREFETCH
1374 select CPU_SUPPORTS_32BIT_KERNEL
1375 select CPU_SUPPORTS_HIGHMEM
1376 select CPU_SUPPORTS_MSA
1377 select GENERIC_CSUM
1378 select HAVE_KVM
1379 select MIPS_O32_FP64_SUPPORT
1380 help
1381 Choose this option to build a kernel for release 6 or later of the
1382 MIPS32 architecture. New MIPS processors, starting with the Warrior
1383 family, are based on a MIPS32r6 processor. If you own an older
1384 processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1385
1386config CPU_MIPS64_R1
1387 bool "MIPS64 Release 1"
1388 depends on SYS_HAS_CPU_MIPS64_R1
1389 select CPU_HAS_PREFETCH
1390 select CPU_SUPPORTS_32BIT_KERNEL
1391 select CPU_SUPPORTS_64BIT_KERNEL
1392 select CPU_SUPPORTS_HIGHMEM
1393 select CPU_SUPPORTS_HUGEPAGES
1394 help
1395 Choose this option to build a kernel for release 1 or later of the
1396 MIPS64 architecture. Many modern embedded systems with a 64-bit
1397 MIPS processor are based on a MIPS64 processor. If you know the
1398 specific type of processor in your system, choose those that one
1399 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1400 Release 2 of the MIPS64 architecture is available since several
1401 years so chances are you even have a MIPS64 Release 2 processor
1402 in which case you should choose CPU_MIPS64_R2 instead for better
1403 performance.
1404
1405config CPU_MIPS64_R2
1406 bool "MIPS64 Release 2"
1407 depends on SYS_HAS_CPU_MIPS64_R2
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 select CPU_SUPPORTS_MSA
1414 help
1415 Choose this option to build a kernel for release 2 or later of the
1416 MIPS64 architecture. Many modern embedded systems with a 64-bit
1417 MIPS processor are based on a MIPS64 processor. If you know the
1418 specific type of processor in your system, choose those that one
1419 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1420
1421config CPU_MIPS64_R6
1422 bool "MIPS64 Release 6 (EXPERIMENTAL)"
1423 depends on SYS_HAS_CPU_MIPS64_R6
1424 select CPU_HAS_PREFETCH
1425 select CPU_SUPPORTS_32BIT_KERNEL
1426 select CPU_SUPPORTS_64BIT_KERNEL
1427 select CPU_SUPPORTS_HIGHMEM
1428 select CPU_SUPPORTS_MSA
1429 select GENERIC_CSUM
1430 help
1431 Choose this option to build a kernel for release 6 or later of the
1432 MIPS64 architecture. New MIPS processors, starting with the Warrior
1433 family, are based on a MIPS64r6 processor. If you own an older
1434 processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1435
1436config CPU_R3000
1437 bool "R3000"
1438 depends on SYS_HAS_CPU_R3000
1439 select CPU_HAS_WB
1440 select CPU_SUPPORTS_32BIT_KERNEL
1441 select CPU_SUPPORTS_HIGHMEM
1442 help
1443 Please make sure to pick the right CPU type. Linux/MIPS is not
1444 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1445 *not* work on R4000 machines and vice versa. However, since most
1446 of the supported machines have an R4000 (or similar) CPU, R4x00
1447 might be a safe bet. If the resulting kernel does not work,
1448 try to recompile with R3000.
1449
1450config CPU_TX39XX
1451 bool "R39XX"
1452 depends on SYS_HAS_CPU_TX39XX
1453 select CPU_SUPPORTS_32BIT_KERNEL
1454
1455config CPU_VR41XX
1456 bool "R41xx"
1457 depends on SYS_HAS_CPU_VR41XX
1458 select CPU_SUPPORTS_32BIT_KERNEL
1459 select CPU_SUPPORTS_64BIT_KERNEL
1460 help
1461 The options selects support for the NEC VR4100 series of processors.
1462 Only choose this option if you have one of these processors as a
1463 kernel built with this option will not run on any other type of
1464 processor or vice versa.
1465
1466config CPU_R4300
1467 bool "R4300"
1468 depends on SYS_HAS_CPU_R4300
1469 select CPU_SUPPORTS_32BIT_KERNEL
1470 select CPU_SUPPORTS_64BIT_KERNEL
1471 help
1472 MIPS Technologies R4300-series processors.
1473
1474config CPU_R4X00
1475 bool "R4x00"
1476 depends on SYS_HAS_CPU_R4X00
1477 select CPU_SUPPORTS_32BIT_KERNEL
1478 select CPU_SUPPORTS_64BIT_KERNEL
1479 select CPU_SUPPORTS_HUGEPAGES
1480 help
1481 MIPS Technologies R4000-series processors other than 4300, including
1482 the R4000, R4400, R4600, and 4700.
1483
1484config CPU_TX49XX
1485 bool "R49XX"
1486 depends on SYS_HAS_CPU_TX49XX
1487 select CPU_HAS_PREFETCH
1488 select CPU_SUPPORTS_32BIT_KERNEL
1489 select CPU_SUPPORTS_64BIT_KERNEL
1490 select CPU_SUPPORTS_HUGEPAGES
1491
1492config CPU_R5000
1493 bool "R5000"
1494 depends on SYS_HAS_CPU_R5000
1495 select CPU_SUPPORTS_32BIT_KERNEL
1496 select CPU_SUPPORTS_64BIT_KERNEL
1497 select CPU_SUPPORTS_HUGEPAGES
1498 help
1499 MIPS Technologies R5000-series processors other than the Nevada.
1500
1501config CPU_R5432
1502 bool "R5432"
1503 depends on SYS_HAS_CPU_R5432
1504 select CPU_SUPPORTS_32BIT_KERNEL
1505 select CPU_SUPPORTS_64BIT_KERNEL
1506 select CPU_SUPPORTS_HUGEPAGES
1507
1508config CPU_R5500
1509 bool "R5500"
1510 depends on SYS_HAS_CPU_R5500
1511 select CPU_SUPPORTS_32BIT_KERNEL
1512 select CPU_SUPPORTS_64BIT_KERNEL
1513 select CPU_SUPPORTS_HUGEPAGES
1514 help
1515 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1516 instruction set.
1517
1518config CPU_R6000
1519 bool "R6000"
1520 depends on SYS_HAS_CPU_R6000
1521 select CPU_SUPPORTS_32BIT_KERNEL
1522 help
1523 MIPS Technologies R6000 and R6000A series processors. Note these
1524 processors are extremely rare and the support for them is incomplete.
1525
1526config CPU_NEVADA
1527 bool "RM52xx"
1528 depends on SYS_HAS_CPU_NEVADA
1529 select CPU_SUPPORTS_32BIT_KERNEL
1530 select CPU_SUPPORTS_64BIT_KERNEL
1531 select CPU_SUPPORTS_HUGEPAGES
1532 help
1533 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1534
1535config CPU_R8000
1536 bool "R8000"
1537 depends on SYS_HAS_CPU_R8000
1538 select CPU_HAS_PREFETCH
1539 select CPU_SUPPORTS_64BIT_KERNEL
1540 help
1541 MIPS Technologies R8000 processors. Note these processors are
1542 uncommon and the support for them is incomplete.
1543
1544config CPU_R10000
1545 bool "R10000"
1546 depends on SYS_HAS_CPU_R10000
1547 select CPU_HAS_PREFETCH
1548 select CPU_SUPPORTS_32BIT_KERNEL
1549 select CPU_SUPPORTS_64BIT_KERNEL
1550 select CPU_SUPPORTS_HIGHMEM
1551 select CPU_SUPPORTS_HUGEPAGES
1552 help
1553 MIPS Technologies R10000-series processors.
1554
1555config CPU_RM7000
1556 bool "RM7000"
1557 depends on SYS_HAS_CPU_RM7000
1558 select CPU_HAS_PREFETCH
1559 select CPU_SUPPORTS_32BIT_KERNEL
1560 select CPU_SUPPORTS_64BIT_KERNEL
1561 select CPU_SUPPORTS_HIGHMEM
1562 select CPU_SUPPORTS_HUGEPAGES
1563
1564config CPU_SB1
1565 bool "SB1"
1566 depends on SYS_HAS_CPU_SB1
1567 select CPU_SUPPORTS_32BIT_KERNEL
1568 select CPU_SUPPORTS_64BIT_KERNEL
1569 select CPU_SUPPORTS_HIGHMEM
1570 select CPU_SUPPORTS_HUGEPAGES
1571 select WEAK_ORDERING
1572
1573config CPU_CAVIUM_OCTEON
1574 bool "Cavium Octeon processor"
1575 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1576 select CPU_HAS_PREFETCH
1577 select CPU_SUPPORTS_64BIT_KERNEL
1578 select WEAK_ORDERING
1579 select CPU_SUPPORTS_HIGHMEM
1580 select CPU_SUPPORTS_HUGEPAGES
1581 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1582 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1583 select MIPS_L1_CACHE_SHIFT_7
1584 help
1585 The Cavium Octeon processor is a highly integrated chip containing
1586 many ethernet hardware widgets for networking tasks. The processor
1587 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1588 Full details can be found at http://www.caviumnetworks.com.
1589
1590config CPU_BMIPS
1591 bool "Broadcom BMIPS"
1592 depends on SYS_HAS_CPU_BMIPS
1593 select CPU_MIPS32
1594 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1595 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1596 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1597 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1598 select CPU_SUPPORTS_32BIT_KERNEL
1599 select DMA_NONCOHERENT
1600 select IRQ_MIPS_CPU
1601 select SWAP_IO_SPACE
1602 select WEAK_ORDERING
1603 select CPU_SUPPORTS_HIGHMEM
1604 select CPU_HAS_PREFETCH
1605 help
1606 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1607
1608config CPU_XLR
1609 bool "Netlogic XLR SoC"
1610 depends on SYS_HAS_CPU_XLR
1611 select CPU_SUPPORTS_32BIT_KERNEL
1612 select CPU_SUPPORTS_64BIT_KERNEL
1613 select CPU_SUPPORTS_HIGHMEM
1614 select CPU_SUPPORTS_HUGEPAGES
1615 select WEAK_ORDERING
1616 select WEAK_REORDERING_BEYOND_LLSC
1617 help
1618 Netlogic Microsystems XLR/XLS processors.
1619
1620config CPU_XLP
1621 bool "Netlogic XLP SoC"
1622 depends on SYS_HAS_CPU_XLP
1623 select CPU_SUPPORTS_32BIT_KERNEL
1624 select CPU_SUPPORTS_64BIT_KERNEL
1625 select CPU_SUPPORTS_HIGHMEM
1626 select WEAK_ORDERING
1627 select WEAK_REORDERING_BEYOND_LLSC
1628 select CPU_HAS_PREFETCH
1629 select CPU_MIPSR2
1630 select CPU_SUPPORTS_HUGEPAGES
1631 help
1632 Netlogic Microsystems XLP processors.
1633endchoice
1634
1635config CPU_MIPS32_3_5_FEATURES
1636 bool "MIPS32 Release 3.5 Features"
1637 depends on SYS_HAS_CPU_MIPS32_R3_5
1638 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1639 help
1640 Choose this option to build a kernel for release 2 or later of the
1641 MIPS32 architecture including features from the 3.5 release such as
1642 support for Enhanced Virtual Addressing (EVA).
1643
1644config CPU_MIPS32_3_5_EVA
1645 bool "Enhanced Virtual Addressing (EVA)"
1646 depends on CPU_MIPS32_3_5_FEATURES
1647 select EVA
1648 default y
1649 help
1650 Choose this option if you want to enable the Enhanced Virtual
1651 Addressing (EVA) on your MIPS32 core (such as proAptiv).
1652 One of its primary benefits is an increase in the maximum size
1653 of lowmem (up to 3GB). If unsure, say 'N' here.
1654
1655config CPU_MIPS32_R5_FEATURES
1656 bool "MIPS32 Release 5 Features"
1657 depends on SYS_HAS_CPU_MIPS32_R5
1658 depends on CPU_MIPS32_R2
1659 help
1660 Choose this option to build a kernel for release 2 or later of the
1661 MIPS32 architecture including features from release 5 such as
1662 support for Extended Physical Addressing (XPA).
1663
1664config CPU_MIPS32_R5_XPA
1665 bool "Extended Physical Addressing (XPA)"
1666 depends on CPU_MIPS32_R5_FEATURES
1667 depends on !EVA
1668 depends on !PAGE_SIZE_4KB
1669 depends on SYS_SUPPORTS_HIGHMEM
1670 select XPA
1671 select HIGHMEM
1672 select ARCH_PHYS_ADDR_T_64BIT
1673 default n
1674 help
1675 Choose this option if you want to enable the Extended Physical
1676 Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1677 benefit is to increase physical addressing equal to or greater
1678 than 40 bits. Note that this has the side effect of turning on
1679 64-bit addressing which in turn makes the PTEs 64-bit in size.
1680 If unsure, say 'N' here.
1681
1682if CPU_LOONGSON2F
1683config CPU_NOP_WORKAROUNDS
1684 bool
1685
1686config CPU_JUMP_WORKAROUNDS
1687 bool
1688
1689config CPU_LOONGSON2F_WORKAROUNDS
1690 bool "Loongson 2F Workarounds"
1691 default y
1692 select CPU_NOP_WORKAROUNDS
1693 select CPU_JUMP_WORKAROUNDS
1694 help
1695 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1696 require workarounds. Without workarounds the system may hang
1697 unexpectedly. For more information please refer to the gas
1698 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1699
1700 Loongson 2F03 and later have fixed these issues and no workarounds
1701 are needed. The workarounds have no significant side effect on them
1702 but may decrease the performance of the system so this option should
1703 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1704 systems.
1705
1706 If unsure, please say Y.
1707endif # CPU_LOONGSON2F
1708
1709config SYS_SUPPORTS_ZBOOT
1710 bool
1711 select HAVE_KERNEL_GZIP
1712 select HAVE_KERNEL_BZIP2
1713 select HAVE_KERNEL_LZ4
1714 select HAVE_KERNEL_LZMA
1715 select HAVE_KERNEL_LZO
1716 select HAVE_KERNEL_XZ
1717
1718config SYS_SUPPORTS_ZBOOT_UART16550
1719 bool
1720 select SYS_SUPPORTS_ZBOOT
1721
1722config CPU_LOONGSON2
1723 bool
1724 select CPU_SUPPORTS_32BIT_KERNEL
1725 select CPU_SUPPORTS_64BIT_KERNEL
1726 select CPU_SUPPORTS_HIGHMEM
1727 select CPU_SUPPORTS_HUGEPAGES
1728
1729config CPU_LOONGSON1
1730 bool
1731 select CPU_MIPS32
1732 select CPU_MIPSR2
1733 select CPU_HAS_PREFETCH
1734 select CPU_SUPPORTS_32BIT_KERNEL
1735 select CPU_SUPPORTS_HIGHMEM
1736 select CPU_SUPPORTS_CPUFREQ
1737
1738config CPU_BMIPS32_3300
1739 select SMP_UP if SMP
1740 bool
1741
1742config CPU_BMIPS4350
1743 bool
1744 select SYS_SUPPORTS_SMP
1745 select SYS_SUPPORTS_HOTPLUG_CPU
1746
1747config CPU_BMIPS4380
1748 bool
1749 select MIPS_L1_CACHE_SHIFT_6
1750 select SYS_SUPPORTS_SMP
1751 select SYS_SUPPORTS_HOTPLUG_CPU
1752
1753config CPU_BMIPS5000
1754 bool
1755 select MIPS_CPU_SCACHE
1756 select MIPS_L1_CACHE_SHIFT_7
1757 select SYS_SUPPORTS_SMP
1758 select SYS_SUPPORTS_HOTPLUG_CPU
1759
1760config SYS_HAS_CPU_LOONGSON3
1761 bool
1762 select CPU_SUPPORTS_CPUFREQ
1763
1764config SYS_HAS_CPU_LOONGSON2E
1765 bool
1766
1767config SYS_HAS_CPU_LOONGSON2F
1768 bool
1769 select CPU_SUPPORTS_CPUFREQ
1770 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1771 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1772
1773config SYS_HAS_CPU_LOONGSON1B
1774 bool
1775
1776config SYS_HAS_CPU_MIPS32_R1
1777 bool
1778
1779config SYS_HAS_CPU_MIPS32_R2
1780 bool
1781
1782config SYS_HAS_CPU_MIPS32_R3_5
1783 bool
1784
1785config SYS_HAS_CPU_MIPS32_R5
1786 bool
1787
1788config SYS_HAS_CPU_MIPS32_R6
1789 bool
1790
1791config SYS_HAS_CPU_MIPS64_R1
1792 bool
1793
1794config SYS_HAS_CPU_MIPS64_R2
1795 bool
1796
1797config SYS_HAS_CPU_MIPS64_R6
1798 bool
1799
1800config SYS_HAS_CPU_R3000
1801 bool
1802
1803config SYS_HAS_CPU_TX39XX
1804 bool
1805
1806config SYS_HAS_CPU_VR41XX
1807 bool
1808
1809config SYS_HAS_CPU_R4300
1810 bool
1811
1812config SYS_HAS_CPU_R4X00
1813 bool
1814
1815config SYS_HAS_CPU_TX49XX
1816 bool
1817
1818config SYS_HAS_CPU_R5000
1819 bool
1820
1821config SYS_HAS_CPU_R5432
1822 bool
1823
1824config SYS_HAS_CPU_R5500
1825 bool
1826
1827config SYS_HAS_CPU_R6000
1828 bool
1829
1830config SYS_HAS_CPU_NEVADA
1831 bool
1832
1833config SYS_HAS_CPU_R8000
1834 bool
1835
1836config SYS_HAS_CPU_R10000
1837 bool
1838
1839config SYS_HAS_CPU_RM7000
1840 bool
1841
1842config SYS_HAS_CPU_SB1
1843 bool
1844
1845config SYS_HAS_CPU_CAVIUM_OCTEON
1846 bool
1847
1848config SYS_HAS_CPU_BMIPS
1849 bool
1850
1851config SYS_HAS_CPU_BMIPS32_3300
1852 bool
1853 select SYS_HAS_CPU_BMIPS
1854
1855config SYS_HAS_CPU_BMIPS4350
1856 bool
1857 select SYS_HAS_CPU_BMIPS
1858
1859config SYS_HAS_CPU_BMIPS4380
1860 bool
1861 select SYS_HAS_CPU_BMIPS
1862
1863config SYS_HAS_CPU_BMIPS5000
1864 bool
1865 select SYS_HAS_CPU_BMIPS
1866
1867config SYS_HAS_CPU_XLR
1868 bool
1869
1870config SYS_HAS_CPU_XLP
1871 bool
1872
1873config MIPS_MALTA_PM
1874 depends on MIPS_MALTA
1875 depends on PCI
1876 bool
1877 default y
1878
1879#
1880# CPU may reorder R->R, R->W, W->R, W->W
1881# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1882#
1883config WEAK_ORDERING
1884 bool
1885
1886#
1887# CPU may reorder reads and writes beyond LL/SC
1888# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1889#
1890config WEAK_REORDERING_BEYOND_LLSC
1891 bool
1892endmenu
1893
1894#
1895# These two indicate any level of the MIPS32 and MIPS64 architecture
1896#
1897config CPU_MIPS32
1898 bool
1899 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
1900
1901config CPU_MIPS64
1902 bool
1903 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
1904
1905#
1906# These two indicate the revision of the architecture, either Release 1 or Release 2
1907#
1908config CPU_MIPSR1
1909 bool
1910 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1911
1912config CPU_MIPSR2
1913 bool
1914 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1915 select MIPS_SPRAM
1916
1917config CPU_MIPSR6
1918 bool
1919 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
1920 select MIPS_SPRAM
1921
1922config EVA
1923 bool
1924
1925config XPA
1926 bool
1927
1928config SYS_SUPPORTS_32BIT_KERNEL
1929 bool
1930config SYS_SUPPORTS_64BIT_KERNEL
1931 bool
1932config CPU_SUPPORTS_32BIT_KERNEL
1933 bool
1934config CPU_SUPPORTS_64BIT_KERNEL
1935 bool
1936config CPU_SUPPORTS_CPUFREQ
1937 bool
1938config CPU_SUPPORTS_ADDRWINCFG
1939 bool
1940config CPU_SUPPORTS_HUGEPAGES
1941 bool
1942config CPU_SUPPORTS_UNCACHED_ACCELERATED
1943 bool
1944config MIPS_PGD_C0_CONTEXT
1945 bool
1946 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1947
1948#
1949# Set to y for ptrace access to watch registers.
1950#
1951config HARDWARE_WATCHPOINTS
1952 bool
1953 default y if CPU_MIPSR1 || CPU_MIPSR2
1954
1955menu "Kernel type"
1956
1957choice
1958 prompt "Kernel code model"
1959 help
1960 You should only select this option if you have a workload that
1961 actually benefits from 64-bit processing or if your machine has
1962 large memory. You will only be presented a single option in this
1963 menu if your system does not support both 32-bit and 64-bit kernels.
1964
1965config 32BIT
1966 bool "32-bit kernel"
1967 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1968 select TRAD_SIGNALS
1969 help
1970 Select this option if you want to build a 32-bit kernel.
1971config 64BIT
1972 bool "64-bit kernel"
1973 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1974 help
1975 Select this option if you want to build a 64-bit kernel.
1976
1977endchoice
1978
1979config KVM_GUEST
1980 bool "KVM Guest Kernel"
1981 depends on BROKEN_ON_SMP
1982 help
1983 Select this option if building a guest kernel for KVM (Trap & Emulate) mode
1984
1985config KVM_GUEST_TIMER_FREQ
1986 int "Count/Compare Timer Frequency (MHz)"
1987 depends on KVM_GUEST
1988 default 100
1989 help
1990 Set this to non-zero if building a guest kernel for KVM to skip RTC
1991 emulation when determining guest CPU Frequency. Instead, the guest's
1992 timer frequency is specified directly.
1993
1994choice
1995 prompt "Kernel page size"
1996 default PAGE_SIZE_4KB
1997
1998config PAGE_SIZE_4KB
1999 bool "4kB"
2000 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
2001 help
2002 This option select the standard 4kB Linux page size. On some
2003 R3000-family processors this is the only available page size. Using
2004 4kB page size will minimize memory consumption and is therefore
2005 recommended for low memory systems.
2006
2007config PAGE_SIZE_8KB
2008 bool "8kB"
2009 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
2010 help
2011 Using 8kB page size will result in higher performance kernel at
2012 the price of higher memory consumption. This option is available
2013 only on R8000 and cnMIPS processors. Note that you will need a
2014 suitable Linux distribution to support this.
2015
2016config PAGE_SIZE_16KB
2017 bool "16kB"
2018 depends on !CPU_R3000 && !CPU_TX39XX
2019 help
2020 Using 16kB page size will result in higher performance kernel at
2021 the price of higher memory consumption. This option is available on
2022 all non-R3000 family processors. Note that you will need a suitable
2023 Linux distribution to support this.
2024
2025config PAGE_SIZE_32KB
2026 bool "32kB"
2027 depends on CPU_CAVIUM_OCTEON
2028 help
2029 Using 32kB page size will result in higher performance kernel at
2030 the price of higher memory consumption. This option is available
2031 only on cnMIPS cores. Note that you will need a suitable Linux
2032 distribution to support this.
2033
2034config PAGE_SIZE_64KB
2035 bool "64kB"
2036 depends on !CPU_R3000 && !CPU_TX39XX
2037 help
2038 Using 64kB page size will result in higher performance kernel at
2039 the price of higher memory consumption. This option is available on
2040 all non-R3000 family processor. Not that at the time of this
2041 writing this option is still high experimental.
2042
2043endchoice
2044
2045config FORCE_MAX_ZONEORDER
2046 int "Maximum zone order"
2047 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2048 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2049 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2050 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2051 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2052 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2053 range 11 64
2054 default "11"
2055 help
2056 The kernel memory allocator divides physically contiguous memory
2057 blocks into "zones", where each zone is a power of two number of
2058 pages. This option selects the largest power of two that the kernel
2059 keeps in the memory allocator. If you need to allocate very large
2060 blocks of physically contiguous memory, then you may need to
2061 increase this value.
2062
2063 This config option is actually maximum order plus one. For example,
2064 a value of 11 means that the largest free memory block is 2^10 pages.
2065
2066 The page size is not necessarily 4KB. Keep this in mind
2067 when choosing a value for this option.
2068
2069config BOARD_SCACHE
2070 bool
2071
2072config IP22_CPU_SCACHE
2073 bool
2074 select BOARD_SCACHE
2075
2076#
2077# Support for a MIPS32 / MIPS64 style S-caches
2078#
2079config MIPS_CPU_SCACHE
2080 bool
2081 select BOARD_SCACHE
2082
2083config R5000_CPU_SCACHE
2084 bool
2085 select BOARD_SCACHE
2086
2087config RM7000_CPU_SCACHE
2088 bool
2089 select BOARD_SCACHE
2090
2091config SIBYTE_DMA_PAGEOPS
2092 bool "Use DMA to clear/copy pages"
2093 depends on CPU_SB1
2094 help
2095 Instead of using the CPU to zero and copy pages, use a Data Mover
2096 channel. These DMA channels are otherwise unused by the standard
2097 SiByte Linux port. Seems to give a small performance benefit.
2098
2099config CPU_HAS_PREFETCH
2100 bool
2101
2102config CPU_GENERIC_DUMP_TLB
2103 bool
2104 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
2105
2106config CPU_R4K_FPU
2107 bool
2108 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2109
2110config CPU_R4K_CACHE_TLB
2111 bool
2112 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2113
2114config MIPS_MT_SMP
2115 bool "MIPS MT SMP support (1 TC on each available VPE)"
2116 depends on SYS_SUPPORTS_MULTITHREADING
2117 select CPU_MIPSR2_IRQ_VI
2118 select CPU_MIPSR2_IRQ_EI
2119 select SYNC_R4K
2120 select MIPS_GIC_IPI
2121 select MIPS_MT
2122 select SMP
2123 select SMP_UP
2124 select SYS_SUPPORTS_SMP
2125 select SYS_SUPPORTS_SCHED_SMT
2126 select MIPS_PERF_SHARED_TC_COUNTERS
2127 help
2128 This is a kernel model which is known as SMVP. This is supported
2129 on cores with the MT ASE and uses the available VPEs to implement
2130 virtual processors which supports SMP. This is equivalent to the
2131 Intel Hyperthreading feature. For further information go to
2132 <http://www.imgtec.com/mips/mips-multithreading.asp>.
2133
2134config MIPS_MT
2135 bool
2136
2137config SCHED_SMT
2138 bool "SMT (multithreading) scheduler support"
2139 depends on SYS_SUPPORTS_SCHED_SMT
2140 default n
2141 help
2142 SMT scheduler support improves the CPU scheduler's decision making
2143 when dealing with MIPS MT enabled cores at a cost of slightly
2144 increased overhead in some places. If unsure say N here.
2145
2146config SYS_SUPPORTS_SCHED_SMT
2147 bool
2148
2149config SYS_SUPPORTS_MULTITHREADING
2150 bool
2151
2152config MIPS_MT_FPAFF
2153 bool "Dynamic FPU affinity for FP-intensive threads"
2154 default y
2155 depends on MIPS_MT_SMP
2156
2157config MIPSR2_TO_R6_EMULATOR
2158 bool "MIPS R2-to-R6 emulator"
2159 depends on CPU_MIPSR6 && !SMP
2160 default y
2161 help
2162 Choose this option if you want to run non-R6 MIPS userland code.
2163 Even if you say 'Y' here, the emulator will still be disabled by
2164 default. You can enable it using the 'mipsr2emu' kernel option.
2165 The only reason this is a build-time option is to save ~14K from the
2166 final kernel image.
2167comment "MIPS R2-to-R6 emulator is only available for UP kernels"
2168 depends on SMP && CPU_MIPSR6
2169
2170config MIPS_VPE_LOADER
2171 bool "VPE loader support."
2172 depends on SYS_SUPPORTS_MULTITHREADING && MODULES
2173 select CPU_MIPSR2_IRQ_VI
2174 select CPU_MIPSR2_IRQ_EI
2175 select MIPS_MT
2176 help
2177 Includes a loader for loading an elf relocatable object
2178 onto another VPE and running it.
2179
2180config MIPS_VPE_LOADER_CMP
2181 bool
2182 default "y"
2183 depends on MIPS_VPE_LOADER && MIPS_CMP
2184
2185config MIPS_VPE_LOADER_MT
2186 bool
2187 default "y"
2188 depends on MIPS_VPE_LOADER && !MIPS_CMP
2189
2190config MIPS_VPE_LOADER_TOM
2191 bool "Load VPE program into memory hidden from linux"
2192 depends on MIPS_VPE_LOADER
2193 default y
2194 help
2195 The loader can use memory that is present but has been hidden from
2196 Linux using the kernel command line option "mem=xxMB". It's up to
2197 you to ensure the amount you put in the option and the space your
2198 program requires is less or equal to the amount physically present.
2199
2200config MIPS_VPE_APSP_API
2201 bool "Enable support for AP/SP API (RTLX)"
2202 depends on MIPS_VPE_LOADER
2203 help
2204
2205config MIPS_VPE_APSP_API_CMP
2206 bool
2207 default "y"
2208 depends on MIPS_VPE_APSP_API && MIPS_CMP
2209
2210config MIPS_VPE_APSP_API_MT
2211 bool
2212 default "y"
2213 depends on MIPS_VPE_APSP_API && !MIPS_CMP
2214
2215config MIPS_CMP
2216 bool "MIPS CMP framework support (DEPRECATED)"
2217 depends on SYS_SUPPORTS_MIPS_CMP
2218 select MIPS_GIC_IPI
2219 select SMP
2220 select SYNC_R4K
2221 select SYS_SUPPORTS_SMP
2222 select WEAK_ORDERING
2223 default n
2224 help
2225 Select this if you are using a bootloader which implements the "CMP
2226 framework" protocol (ie. YAMON) and want your kernel to make use of
2227 its ability to start secondary CPUs.
2228
2229 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2230 instead of this.
2231
2232config MIPS_CPS
2233 bool "MIPS Coherent Processing System support"
2234 depends on SYS_SUPPORTS_MIPS_CPS && !64BIT
2235 select MIPS_CM
2236 select MIPS_CPC
2237 select MIPS_CPS_PM if HOTPLUG_CPU
2238 select MIPS_GIC_IPI
2239 select SMP
2240 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2241 select SYS_SUPPORTS_HOTPLUG_CPU
2242 select SYS_SUPPORTS_SMP
2243 select WEAK_ORDERING
2244 help
2245 Select this if you wish to run an SMP kernel across multiple cores
2246 within a MIPS Coherent Processing System. When this option is
2247 enabled the kernel will probe for other cores and boot them with
2248 no external assistance. It is safe to enable this when hardware
2249 support is unavailable.
2250
2251config MIPS_CPS_PM
2252 depends on MIPS_CPS
2253 select MIPS_CPC
2254 bool
2255
2256config MIPS_GIC_IPI
2257 bool
2258
2259config MIPS_CM
2260 bool
2261
2262config MIPS_CPC
2263 bool
2264
2265config SB1_PASS_1_WORKAROUNDS
2266 bool
2267 depends on CPU_SB1_PASS_1
2268 default y
2269
2270config SB1_PASS_2_WORKAROUNDS
2271 bool
2272 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2273 default y
2274
2275config SB1_PASS_2_1_WORKAROUNDS
2276 bool
2277 depends on CPU_SB1 && CPU_SB1_PASS_2
2278 default y
2279
2280
2281config ARCH_PHYS_ADDR_T_64BIT
2282 bool
2283
2284choice
2285 prompt "SmartMIPS or microMIPS ASE support"
2286
2287config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2288 bool "None"
2289 help
2290 Select this if you want neither microMIPS nor SmartMIPS support
2291
2292config CPU_HAS_SMARTMIPS
2293 depends on SYS_SUPPORTS_SMARTMIPS
2294 bool "SmartMIPS"
2295 help
2296 SmartMIPS is a extension of the MIPS32 architecture aimed at
2297 increased security at both hardware and software level for
2298 smartcards. Enabling this option will allow proper use of the
2299 SmartMIPS instructions by Linux applications. However a kernel with
2300 this option will not work on a MIPS core without SmartMIPS core. If
2301 you don't know you probably don't have SmartMIPS and should say N
2302 here.
2303
2304config CPU_MICROMIPS
2305 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2306 bool "microMIPS"
2307 help
2308 When this option is enabled the kernel will be built using the
2309 microMIPS ISA
2310
2311endchoice
2312
2313config CPU_HAS_MSA
2314 bool "Support for the MIPS SIMD Architecture (EXPERIMENTAL)"
2315 depends on CPU_SUPPORTS_MSA
2316 depends on 64BIT || MIPS_O32_FP64_SUPPORT
2317 help
2318 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2319 and a set of SIMD instructions to operate on them. When this option
2320 is enabled the kernel will support allocating & switching MSA
2321 vector register contexts. If you know that your kernel will only be
2322 running on CPUs which do not support MSA or that your userland will
2323 not be making use of it then you may wish to say N here to reduce
2324 the size & complexity of your kernel.
2325
2326 If unsure, say Y.
2327
2328config CPU_HAS_WB
2329 bool
2330
2331config XKS01
2332 bool
2333
2334#
2335# Vectored interrupt mode is an R2 feature
2336#
2337config CPU_MIPSR2_IRQ_VI
2338 bool
2339
2340#
2341# Extended interrupt mode is an R2 feature
2342#
2343config CPU_MIPSR2_IRQ_EI
2344 bool
2345
2346config CPU_HAS_SYNC
2347 bool
2348 depends on !CPU_R3000
2349 default y
2350
2351#
2352# CPU non-features
2353#
2354config CPU_DADDI_WORKAROUNDS
2355 bool
2356
2357config CPU_R4000_WORKAROUNDS
2358 bool
2359 select CPU_R4400_WORKAROUNDS
2360
2361config CPU_R4400_WORKAROUNDS
2362 bool
2363
2364#
2365# - Highmem only makes sense for the 32-bit kernel.
2366# - The current highmem code will only work properly on physically indexed
2367# caches such as R3000, SB1, R7000 or those that look like they're virtually
2368# indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2369# moment we protect the user and offer the highmem option only on machines
2370# where it's known to be safe. This will not offer highmem on a few systems
2371# such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2372# indexed CPUs but we're playing safe.
2373# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2374# know they might have memory configurations that could make use of highmem
2375# support.
2376#
2377config HIGHMEM
2378 bool "High Memory Support"
2379 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2380
2381config CPU_SUPPORTS_HIGHMEM
2382 bool
2383
2384config SYS_SUPPORTS_HIGHMEM
2385 bool
2386
2387config SYS_SUPPORTS_SMARTMIPS
2388 bool
2389
2390config SYS_SUPPORTS_MICROMIPS
2391 bool
2392
2393config SYS_SUPPORTS_MIPS16
2394 bool
2395 help
2396 This option must be set if a kernel might be executed on a MIPS16-
2397 enabled CPU even if MIPS16 is not actually being used. In other
2398 words, it makes the kernel MIPS16-tolerant.
2399
2400config CPU_SUPPORTS_MSA
2401 bool
2402
2403config ARCH_FLATMEM_ENABLE
2404 def_bool y
2405 depends on !NUMA && !CPU_LOONGSON2
2406
2407config ARCH_DISCONTIGMEM_ENABLE
2408 bool
2409 default y if SGI_IP27
2410 help
2411 Say Y to support efficient handling of discontiguous physical memory,
2412 for architectures which are either NUMA (Non-Uniform Memory Access)
2413 or have huge holes in the physical address space for other reasons.
2414 See <file:Documentation/vm/numa> for more.
2415
2416config ARCH_SPARSEMEM_ENABLE
2417 bool
2418 select SPARSEMEM_STATIC
2419
2420config NUMA
2421 bool "NUMA Support"
2422 depends on SYS_SUPPORTS_NUMA
2423 help
2424 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2425 Access). This option improves performance on systems with more
2426 than two nodes; on two node systems it is generally better to
2427 leave it disabled; on single node systems disable this option
2428 disabled.
2429
2430config SYS_SUPPORTS_NUMA
2431 bool
2432
2433config NODES_SHIFT
2434 int
2435 default "6"
2436 depends on NEED_MULTIPLE_NODES
2437
2438config HW_PERF_EVENTS
2439 bool "Enable hardware performance counter support for perf events"
2440 depends on PERF_EVENTS && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2441 default y
2442 help
2443 Enable hardware performance counter support for perf events. If
2444 disabled, perf events will use software events only.
2445
2446source "mm/Kconfig"
2447
2448config SMP
2449 bool "Multi-Processing support"
2450 depends on SYS_SUPPORTS_SMP
2451 help
2452 This enables support for systems with more than one CPU. If you have
2453 a system with only one CPU, say N. If you have a system with more
2454 than one CPU, say Y.
2455
2456 If you say N here, the kernel will run on uni- and multiprocessor
2457 machines, but will use only one CPU of a multiprocessor machine. If
2458 you say Y here, the kernel will run on many, but not all,
2459 uniprocessor machines. On a uniprocessor machine, the kernel
2460 will run faster if you say N here.
2461
2462 People using multiprocessor machines who say Y here should also say
2463 Y to "Enhanced Real Time Clock Support", below.
2464
2465 See also the SMP-HOWTO available at
2466 <http://www.tldp.org/docs.html#howto>.
2467
2468 If you don't know what to do here, say N.
2469
2470config SMP_UP
2471 bool
2472
2473config SYS_SUPPORTS_MIPS_CMP
2474 bool
2475
2476config SYS_SUPPORTS_MIPS_CPS
2477 bool
2478
2479config SYS_SUPPORTS_SMP
2480 bool
2481
2482config NR_CPUS_DEFAULT_4
2483 bool
2484
2485config NR_CPUS_DEFAULT_8
2486 bool
2487
2488config NR_CPUS_DEFAULT_16
2489 bool
2490
2491config NR_CPUS_DEFAULT_32
2492 bool
2493
2494config NR_CPUS_DEFAULT_64
2495 bool
2496
2497config NR_CPUS
2498 int "Maximum number of CPUs (2-256)"
2499 range 2 256
2500 depends on SMP
2501 default "4" if NR_CPUS_DEFAULT_4
2502 default "8" if NR_CPUS_DEFAULT_8
2503 default "16" if NR_CPUS_DEFAULT_16
2504 default "32" if NR_CPUS_DEFAULT_32
2505 default "64" if NR_CPUS_DEFAULT_64
2506 help
2507 This allows you to specify the maximum number of CPUs which this
2508 kernel will support. The maximum supported value is 32 for 32-bit
2509 kernel and 64 for 64-bit kernels; the minimum value which makes
2510 sense is 1 for Qemu (useful only for kernel debugging purposes)
2511 and 2 for all others.
2512
2513 This is purely to save memory - each supported CPU adds
2514 approximately eight kilobytes to the kernel image. For best
2515 performance should round up your number of processors to the next
2516 power of two.
2517
2518config MIPS_PERF_SHARED_TC_COUNTERS
2519 bool
2520
2521#
2522# Timer Interrupt Frequency Configuration
2523#
2524
2525choice
2526 prompt "Timer frequency"
2527 default HZ_250
2528 help
2529 Allows the configuration of the timer frequency.
2530
2531 config HZ_48
2532 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2533
2534 config HZ_100
2535 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2536
2537 config HZ_128
2538 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2539
2540 config HZ_250
2541 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2542
2543 config HZ_256
2544 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2545
2546 config HZ_1000
2547 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2548
2549 config HZ_1024
2550 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2551
2552endchoice
2553
2554config SYS_SUPPORTS_48HZ
2555 bool
2556
2557config SYS_SUPPORTS_100HZ
2558 bool
2559
2560config SYS_SUPPORTS_128HZ
2561 bool
2562
2563config SYS_SUPPORTS_250HZ
2564 bool
2565
2566config SYS_SUPPORTS_256HZ
2567 bool
2568
2569config SYS_SUPPORTS_1000HZ
2570 bool
2571
2572config SYS_SUPPORTS_1024HZ
2573 bool
2574
2575config SYS_SUPPORTS_ARBIT_HZ
2576 bool
2577 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2578 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2579 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2580 !SYS_SUPPORTS_1024HZ
2581
2582config HZ
2583 int
2584 default 48 if HZ_48
2585 default 100 if HZ_100
2586 default 128 if HZ_128
2587 default 250 if HZ_250
2588 default 256 if HZ_256
2589 default 1000 if HZ_1000
2590 default 1024 if HZ_1024
2591
2592config SCHED_HRTICK
2593 def_bool HIGH_RES_TIMERS
2594
2595source "kernel/Kconfig.preempt"
2596
2597config KEXEC
2598 bool "Kexec system call"
2599 help
2600 kexec is a system call that implements the ability to shutdown your
2601 current kernel, and to start another kernel. It is like a reboot
2602 but it is independent of the system firmware. And like a reboot
2603 you can start any kernel with it, not just Linux.
2604
2605 The name comes from the similarity to the exec system call.
2606
2607 It is an ongoing process to be certain the hardware in a machine
2608 is properly shutdown, so do not be surprised if this code does not
2609 initially work for you. As of this writing the exact hardware
2610 interface is strongly in flux, so no good recommendation can be
2611 made.
2612
2613config CRASH_DUMP
2614 bool "Kernel crash dumps"
2615 help
2616 Generate crash dump after being started by kexec.
2617 This should be normally only set in special crash dump kernels
2618 which are loaded in the main kernel with kexec-tools into
2619 a specially reserved region and then later executed after
2620 a crash by kdump/kexec. The crash dump kernel must be compiled
2621 to a memory address not used by the main kernel or firmware using
2622 PHYSICAL_START.
2623
2624config PHYSICAL_START
2625 hex "Physical address where the kernel is loaded"
2626 default "0xffffffff84000000" if 64BIT
2627 default "0x84000000" if 32BIT
2628 depends on CRASH_DUMP
2629 help
2630 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2631 If you plan to use kernel for capturing the crash dump change
2632 this value to start of the reserved region (the "X" value as
2633 specified in the "crashkernel=YM@XM" command line boot parameter
2634 passed to the panic-ed kernel).
2635
2636config SECCOMP
2637 bool "Enable seccomp to safely compute untrusted bytecode"
2638 depends on PROC_FS
2639 default y
2640 help
2641 This kernel feature is useful for number crunching applications
2642 that may need to compute untrusted bytecode during their
2643 execution. By using pipes or other transports made available to
2644 the process as file descriptors supporting the read/write
2645 syscalls, it's possible to isolate those applications in
2646 their own address space using seccomp. Once seccomp is
2647 enabled via /proc/<pid>/seccomp, it cannot be disabled
2648 and the task is only allowed to execute a few safe syscalls
2649 defined by each seccomp mode.
2650
2651 If unsure, say Y. Only embedded should say N here.
2652
2653config MIPS_O32_FP64_SUPPORT
2654 bool "Support for O32 binaries using 64-bit FP (EXPERIMENTAL)"
2655 depends on 32BIT || MIPS32_O32
2656 help
2657 When this is enabled, the kernel will support use of 64-bit floating
2658 point registers with binaries using the O32 ABI along with the
2659 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2660 32-bit MIPS systems this support is at the cost of increasing the
2661 size and complexity of the compiled FPU emulator. Thus if you are
2662 running a MIPS32 system and know that none of your userland binaries
2663 will require 64-bit floating point, you may wish to reduce the size
2664 of your kernel & potentially improve FP emulation performance by
2665 saying N here.
2666
2667 Although binutils currently supports use of this flag the details
2668 concerning its effect upon the O32 ABI in userland are still being
2669 worked on. In order to avoid userland becoming dependant upon current
2670 behaviour before the details have been finalised, this option should
2671 be considered experimental and only enabled by those working upon
2672 said details.
2673
2674 If unsure, say N.
2675
2676config USE_OF
2677 bool
2678 select OF
2679 select OF_EARLY_FLATTREE
2680 select IRQ_DOMAIN
2681
2682config BUILTIN_DTB
2683 bool
2684
2685choice
2686 prompt "Kernel appended dtb support" if OF
2687 default MIPS_NO_APPENDED_DTB
2688
2689 config MIPS_NO_APPENDED_DTB
2690 bool "None"
2691 help
2692 Do not enable appended dtb support.
2693
2694 config MIPS_RAW_APPENDED_DTB
2695 bool "vmlinux.bin"
2696 help
2697 With this option, the boot code will look for a device tree binary
2698 DTB) appended to raw vmlinux.bin (without decompressor).
2699 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
2700
2701 This is meant as a backward compatibility convenience for those
2702 systems with a bootloader that can't be upgraded to accommodate
2703 the documented boot protocol using a device tree.
2704
2705 Beware that there is very little in terms of protection against
2706 this option being confused by leftover garbage in memory that might
2707 look like a DTB header after a reboot if no actual DTB is appended
2708 to vmlinux.bin. Do not leave this option active in a production kernel
2709 if you don't intend to always append a DTB.
2710
2711 config MIPS_ZBOOT_APPENDED_DTB
2712 bool "vmlinuz.bin"
2713 depends on SYS_SUPPORTS_ZBOOT
2714 help
2715 With this option, the boot code will look for a device tree binary
2716 DTB) appended to raw vmlinuz.bin (with decompressor).
2717 (e.g. cat vmlinuz.bin <filename>.dtb > vmlinuz_w_dtb).
2718
2719 This is meant as a backward compatibility convenience for those
2720 systems with a bootloader that can't be upgraded to accommodate
2721 the documented boot protocol using a device tree.
2722
2723 Beware that there is very little in terms of protection against
2724 this option being confused by leftover garbage in memory that might
2725 look like a DTB header after a reboot if no actual DTB is appended
2726 to vmlinuz.bin. Do not leave this option active in a production kernel
2727 if you don't intend to always append a DTB.
2728endchoice
2729
2730endmenu
2731
2732config LOCKDEP_SUPPORT
2733 bool
2734 default y
2735
2736config STACKTRACE_SUPPORT
2737 bool
2738 default y
2739
2740config PGTABLE_LEVELS
2741 int
2742 default 3 if 64BIT && !PAGE_SIZE_64KB
2743 default 2
2744
2745source "init/Kconfig"
2746
2747source "kernel/Kconfig.freezer"
2748
2749menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2750
2751config HW_HAS_EISA
2752 bool
2753config HW_HAS_PCI
2754 bool
2755
2756config PCI
2757 bool "Support for PCI controller"
2758 depends on HW_HAS_PCI
2759 select PCI_DOMAINS
2760 select NO_GENERIC_PCI_IOPORT_MAP
2761 help
2762 Find out whether you have a PCI motherboard. PCI is the name of a
2763 bus system, i.e. the way the CPU talks to the other stuff inside
2764 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2765 say Y, otherwise N.
2766
2767config HT_PCI
2768 bool "Support for HT-linked PCI"
2769 default y
2770 depends on CPU_LOONGSON3
2771 select PCI
2772 select PCI_DOMAINS
2773 help
2774 Loongson family machines use Hyper-Transport bus for inter-core
2775 connection and device connection. The PCI bus is a subordinate
2776 linked at HT. Choose Y for Loongson-3 based machines.
2777
2778config PCI_DOMAINS
2779 bool
2780
2781source "drivers/pci/Kconfig"
2782
2783source "drivers/pci/pcie/Kconfig"
2784
2785#
2786# ISA support is now enabled via select. Too many systems still have the one
2787# or other ISA chip on the board that users don't know about so don't expect
2788# users to choose the right thing ...
2789#
2790config ISA
2791 bool
2792
2793config EISA
2794 bool "EISA support"
2795 depends on HW_HAS_EISA
2796 select ISA
2797 select GENERIC_ISA_DMA
2798 ---help---
2799 The Extended Industry Standard Architecture (EISA) bus was
2800 developed as an open alternative to the IBM MicroChannel bus.
2801
2802 The EISA bus provided some of the features of the IBM MicroChannel
2803 bus while maintaining backward compatibility with cards made for
2804 the older ISA bus. The EISA bus saw limited use between 1988 and
2805 1995 when it was made obsolete by the PCI bus.
2806
2807 Say Y here if you are building a kernel for an EISA-based machine.
2808
2809 Otherwise, say N.
2810
2811source "drivers/eisa/Kconfig"
2812
2813config TC
2814 bool "TURBOchannel support"
2815 depends on MACH_DECSTATION
2816 help
2817 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2818 processors. TURBOchannel programming specifications are available
2819 at:
2820 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2821 and:
2822 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2823 Linux driver support status is documented at:
2824 <http://www.linux-mips.org/wiki/DECstation>
2825
2826config MMU
2827 bool
2828 default y
2829
2830config I8253
2831 bool
2832 select CLKSRC_I8253
2833 select CLKEVT_I8253
2834 select MIPS_EXTERNAL_TIMER
2835
2836config ZONE_DMA
2837 bool
2838
2839config ZONE_DMA32
2840 bool
2841
2842source "drivers/pcmcia/Kconfig"
2843
2844source "drivers/pci/hotplug/Kconfig"
2845
2846config RAPIDIO
2847 tristate "RapidIO support"
2848 depends on PCI
2849 default n
2850 help
2851 If you say Y here, the kernel will include drivers and
2852 infrastructure code to support RapidIO interconnect devices.
2853
2854source "drivers/rapidio/Kconfig"
2855
2856endmenu
2857
2858menu "Executable file formats"
2859
2860source "fs/Kconfig.binfmt"
2861
2862config TRAD_SIGNALS
2863 bool
2864
2865config MIPS32_COMPAT
2866 bool
2867
2868config COMPAT
2869 bool
2870
2871config SYSVIPC_COMPAT
2872 bool
2873
2874config MIPS32_O32
2875 bool "Kernel support for o32 binaries"
2876 depends on 64BIT
2877 select ARCH_WANT_OLD_COMPAT_IPC
2878 select COMPAT
2879 select MIPS32_COMPAT
2880 select SYSVIPC_COMPAT if SYSVIPC
2881 help
2882 Select this option if you want to run o32 binaries. These are pure
2883 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2884 existing binaries are in this format.
2885
2886 If unsure, say Y.
2887
2888config MIPS32_N32
2889 bool "Kernel support for n32 binaries"
2890 depends on 64BIT
2891 select COMPAT
2892 select MIPS32_COMPAT
2893 select SYSVIPC_COMPAT if SYSVIPC
2894 help
2895 Select this option if you want to run n32 binaries. These are
2896 64-bit binaries using 32-bit quantities for addressing and certain
2897 data that would normally be 64-bit. They are used in special
2898 cases.
2899
2900 If unsure, say N.
2901
2902config BINFMT_ELF32
2903 bool
2904 default y if MIPS32_O32 || MIPS32_N32
2905
2906endmenu
2907
2908menu "Power management options"
2909
2910config ARCH_HIBERNATION_POSSIBLE
2911 def_bool y
2912 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2913
2914config ARCH_SUSPEND_POSSIBLE
2915 def_bool y
2916 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2917
2918source "kernel/power/Kconfig"
2919
2920endmenu
2921
2922config MIPS_EXTERNAL_TIMER
2923 bool
2924
2925menu "CPU Power Management"
2926
2927if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
2928source "drivers/cpufreq/Kconfig"
2929endif
2930
2931source "drivers/cpuidle/Kconfig"
2932
2933endmenu
2934
2935source "net/Kconfig"
2936
2937source "drivers/Kconfig"
2938
2939source "drivers/firmware/Kconfig"
2940
2941source "fs/Kconfig"
2942
2943source "arch/mips/Kconfig.debug"
2944
2945source "security/Kconfig"
2946
2947source "crypto/Kconfig"
2948
2949source "lib/Kconfig"
2950
2951source "arch/mips/kvm/Kconfig"