Merge branch 'powercap'
[deliverable/linux.git] / arch / mips / Kconfig
1 config MIPS
2 bool
3 default y
4 select ARCH_SUPPORTS_UPROBES
5 select ARCH_MIGHT_HAVE_PC_PARPORT
6 select ARCH_MIGHT_HAVE_PC_SERIO
7 select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
8 select ARCH_USE_BUILTIN_BSWAP
9 select HAVE_CONTEXT_TRACKING
10 select HAVE_GENERIC_DMA_COHERENT
11 select HAVE_IDE
12 select HAVE_OPROFILE
13 select HAVE_PERF_EVENTS
14 select PERF_USE_VMALLOC
15 select HAVE_ARCH_KGDB
16 select HAVE_ARCH_SECCOMP_FILTER
17 select HAVE_ARCH_TRACEHOOK
18 select HAVE_BPF_JIT if !CPU_MICROMIPS
19 select HAVE_FUNCTION_TRACER
20 select HAVE_DYNAMIC_FTRACE
21 select HAVE_FTRACE_MCOUNT_RECORD
22 select HAVE_C_RECORDMCOUNT
23 select HAVE_FUNCTION_GRAPH_TRACER
24 select HAVE_KPROBES
25 select HAVE_KRETPROBES
26 select HAVE_SYSCALL_TRACEPOINTS
27 select HAVE_DEBUG_KMEMLEAK
28 select HAVE_SYSCALL_TRACEPOINTS
29 select ARCH_HAS_ELF_RANDOMIZE
30 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
31 select RTC_LIB if !MACH_LOONGSON64
32 select GENERIC_ATOMIC64 if !64BIT
33 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
34 select HAVE_DMA_CONTIGUOUS
35 select HAVE_DMA_API_DEBUG
36 select GENERIC_IRQ_PROBE
37 select GENERIC_IRQ_SHOW
38 select GENERIC_PCI_IOMAP
39 select HAVE_ARCH_JUMP_LABEL
40 select ARCH_WANT_IPC_PARSE_VERSION
41 select IRQ_FORCED_THREADING
42 select HAVE_MEMBLOCK
43 select HAVE_MEMBLOCK_NODE_MAP
44 select ARCH_DISCARD_MEMBLOCK
45 select GENERIC_SMP_IDLE_THREAD
46 select BUILDTIME_EXTABLE_SORT
47 select GENERIC_CLOCKEVENTS
48 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
49 select GENERIC_CMOS_UPDATE
50 select HAVE_MOD_ARCH_SPECIFIC
51 select VIRT_TO_BUS
52 select MODULES_USE_ELF_REL if MODULES
53 select MODULES_USE_ELF_RELA if MODULES && 64BIT
54 select CLONE_BACKWARDS
55 select HAVE_DEBUG_STACKOVERFLOW
56 select HAVE_CC_STACKPROTECTOR
57 select CPU_PM if CPU_IDLE
58 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
59 select ARCH_BINFMT_ELF_STATE
60 select SYSCTL_EXCEPTION_TRACE
61 select HAVE_VIRT_CPU_ACCOUNTING_GEN
62 select HAVE_IRQ_TIME_ACCOUNTING
63 select GENERIC_TIME_VSYSCALL
64 select ARCH_CLOCKSOURCE_DATA
65
66 menu "Machine selection"
67
68 choice
69 prompt "System type"
70 default SGI_IP22
71
72 config MIPS_ALCHEMY
73 bool "Alchemy processor based machines"
74 select ARCH_PHYS_ADDR_T_64BIT
75 select CEVT_R4K
76 select CSRC_R4K
77 select IRQ_MIPS_CPU
78 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is
79 select SYS_HAS_CPU_MIPS32_R1
80 select SYS_SUPPORTS_32BIT_KERNEL
81 select SYS_SUPPORTS_APM_EMULATION
82 select ARCH_REQUIRE_GPIOLIB
83 select SYS_SUPPORTS_ZBOOT
84 select COMMON_CLK
85
86 config AR7
87 bool "Texas Instruments AR7"
88 select BOOT_ELF32
89 select DMA_NONCOHERENT
90 select CEVT_R4K
91 select CSRC_R4K
92 select IRQ_MIPS_CPU
93 select NO_EXCEPT_FILL
94 select SWAP_IO_SPACE
95 select SYS_HAS_CPU_MIPS32_R1
96 select SYS_HAS_EARLY_PRINTK
97 select SYS_SUPPORTS_32BIT_KERNEL
98 select SYS_SUPPORTS_LITTLE_ENDIAN
99 select SYS_SUPPORTS_MIPS16
100 select SYS_SUPPORTS_ZBOOT_UART16550
101 select ARCH_REQUIRE_GPIOLIB
102 select VLYNQ
103 select HAVE_CLK
104 help
105 Support for the Texas Instruments AR7 System-on-a-Chip
106 family: TNETD7100, 7200 and 7300.
107
108 config ATH25
109 bool "Atheros AR231x/AR531x SoC support"
110 select CEVT_R4K
111 select CSRC_R4K
112 select DMA_NONCOHERENT
113 select IRQ_MIPS_CPU
114 select IRQ_DOMAIN
115 select SYS_HAS_CPU_MIPS32_R1
116 select SYS_SUPPORTS_BIG_ENDIAN
117 select SYS_SUPPORTS_32BIT_KERNEL
118 select SYS_HAS_EARLY_PRINTK
119 help
120 Support for Atheros AR231x and Atheros AR531x based boards
121
122 config ATH79
123 bool "Atheros AR71XX/AR724X/AR913X based boards"
124 select ARCH_HAS_RESET_CONTROLLER
125 select ARCH_REQUIRE_GPIOLIB
126 select BOOT_RAW
127 select CEVT_R4K
128 select CSRC_R4K
129 select DMA_NONCOHERENT
130 select HAVE_CLK
131 select COMMON_CLK
132 select CLKDEV_LOOKUP
133 select IRQ_MIPS_CPU
134 select MIPS_MACHINE
135 select SYS_HAS_CPU_MIPS32_R2
136 select SYS_HAS_EARLY_PRINTK
137 select SYS_SUPPORTS_32BIT_KERNEL
138 select SYS_SUPPORTS_BIG_ENDIAN
139 select SYS_SUPPORTS_MIPS16
140 select SYS_SUPPORTS_ZBOOT
141 select USE_OF
142 help
143 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
144
145 config BMIPS_GENERIC
146 bool "Broadcom Generic BMIPS kernel"
147 select BOOT_RAW
148 select NO_EXCEPT_FILL
149 select USE_OF
150 select CEVT_R4K
151 select CSRC_R4K
152 select SYNC_R4K
153 select COMMON_CLK
154 select BCM7038_L1_IRQ
155 select BCM7120_L2_IRQ
156 select BRCMSTB_L2_IRQ
157 select IRQ_MIPS_CPU
158 select DMA_NONCOHERENT
159 select SYS_SUPPORTS_32BIT_KERNEL
160 select SYS_SUPPORTS_LITTLE_ENDIAN
161 select SYS_SUPPORTS_BIG_ENDIAN
162 select SYS_SUPPORTS_HIGHMEM
163 select SYS_HAS_CPU_BMIPS32_3300
164 select SYS_HAS_CPU_BMIPS4350
165 select SYS_HAS_CPU_BMIPS4380
166 select SYS_HAS_CPU_BMIPS5000
167 select SWAP_IO_SPACE
168 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
169 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
170 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
171 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
172 select ARCH_WANT_OPTIONAL_GPIOLIB
173 help
174 Build a generic DT-based kernel image that boots on select
175 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
176 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
177 must be set appropriately for your board.
178
179 config BCM47XX
180 bool "Broadcom BCM47XX based boards"
181 select ARCH_WANT_OPTIONAL_GPIOLIB
182 select BOOT_RAW
183 select CEVT_R4K
184 select CSRC_R4K
185 select DMA_NONCOHERENT
186 select HW_HAS_PCI
187 select IRQ_MIPS_CPU
188 select SYS_HAS_CPU_MIPS32_R1
189 select NO_EXCEPT_FILL
190 select SYS_SUPPORTS_32BIT_KERNEL
191 select SYS_SUPPORTS_LITTLE_ENDIAN
192 select SYS_SUPPORTS_MIPS16
193 select SYS_HAS_EARLY_PRINTK
194 select USE_GENERIC_EARLY_PRINTK_8250
195 select GPIOLIB
196 select LEDS_GPIO_REGISTER
197 select BCM47XX_NVRAM
198 help
199 Support for BCM47XX based boards
200
201 config BCM63XX
202 bool "Broadcom BCM63XX based boards"
203 select BOOT_RAW
204 select CEVT_R4K
205 select CSRC_R4K
206 select SYNC_R4K
207 select DMA_NONCOHERENT
208 select IRQ_MIPS_CPU
209 select SYS_SUPPORTS_32BIT_KERNEL
210 select SYS_SUPPORTS_BIG_ENDIAN
211 select SYS_HAS_EARLY_PRINTK
212 select SWAP_IO_SPACE
213 select ARCH_REQUIRE_GPIOLIB
214 select HAVE_CLK
215 select MIPS_L1_CACHE_SHIFT_4
216 help
217 Support for BCM63XX based boards
218
219 config MIPS_COBALT
220 bool "Cobalt Server"
221 select CEVT_R4K
222 select CSRC_R4K
223 select CEVT_GT641XX
224 select DMA_NONCOHERENT
225 select HW_HAS_PCI
226 select I8253
227 select I8259
228 select IRQ_MIPS_CPU
229 select IRQ_GT641XX
230 select PCI_GT64XXX_PCI0
231 select PCI
232 select SYS_HAS_CPU_NEVADA
233 select SYS_HAS_EARLY_PRINTK
234 select SYS_SUPPORTS_32BIT_KERNEL
235 select SYS_SUPPORTS_64BIT_KERNEL
236 select SYS_SUPPORTS_LITTLE_ENDIAN
237 select USE_GENERIC_EARLY_PRINTK_8250
238
239 config MACH_DECSTATION
240 bool "DECstations"
241 select BOOT_ELF32
242 select CEVT_DS1287
243 select CEVT_R4K if CPU_R4X00
244 select CSRC_IOASIC
245 select CSRC_R4K if CPU_R4X00
246 select CPU_DADDI_WORKAROUNDS if 64BIT
247 select CPU_R4000_WORKAROUNDS if 64BIT
248 select CPU_R4400_WORKAROUNDS if 64BIT
249 select DMA_NONCOHERENT
250 select NO_IOPORT_MAP
251 select IRQ_MIPS_CPU
252 select SYS_HAS_CPU_R3000
253 select SYS_HAS_CPU_R4X00
254 select SYS_SUPPORTS_32BIT_KERNEL
255 select SYS_SUPPORTS_64BIT_KERNEL
256 select SYS_SUPPORTS_LITTLE_ENDIAN
257 select SYS_SUPPORTS_128HZ
258 select SYS_SUPPORTS_256HZ
259 select SYS_SUPPORTS_1024HZ
260 select MIPS_L1_CACHE_SHIFT_4
261 help
262 This enables support for DEC's MIPS based workstations. For details
263 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
264 DECstation porting pages on <http://decstation.unix-ag.org/>.
265
266 If you have one of the following DECstation Models you definitely
267 want to choose R4xx0 for the CPU Type:
268
269 DECstation 5000/50
270 DECstation 5000/150
271 DECstation 5000/260
272 DECsystem 5900/260
273
274 otherwise choose R3000.
275
276 config MACH_JAZZ
277 bool "Jazz family of machines"
278 select FW_ARC
279 select FW_ARC32
280 select ARCH_MAY_HAVE_PC_FDC
281 select CEVT_R4K
282 select CSRC_R4K
283 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
284 select GENERIC_ISA_DMA
285 select HAVE_PCSPKR_PLATFORM
286 select IRQ_MIPS_CPU
287 select I8253
288 select I8259
289 select ISA
290 select SYS_HAS_CPU_R4X00
291 select SYS_SUPPORTS_32BIT_KERNEL
292 select SYS_SUPPORTS_64BIT_KERNEL
293 select SYS_SUPPORTS_100HZ
294 help
295 This a family of machines based on the MIPS R4030 chipset which was
296 used by several vendors to build RISC/os and Windows NT workstations.
297 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
298 Olivetti M700-10 workstations.
299
300 config MACH_INGENIC
301 bool "Ingenic SoC based machines"
302 select SYS_SUPPORTS_32BIT_KERNEL
303 select SYS_SUPPORTS_LITTLE_ENDIAN
304 select SYS_SUPPORTS_ZBOOT_UART16550
305 select DMA_NONCOHERENT
306 select IRQ_MIPS_CPU
307 select ARCH_REQUIRE_GPIOLIB
308 select COMMON_CLK
309 select GENERIC_IRQ_CHIP
310 select BUILTIN_DTB
311 select USE_OF
312 select LIBFDT
313
314 config LANTIQ
315 bool "Lantiq based platforms"
316 select DMA_NONCOHERENT
317 select IRQ_MIPS_CPU
318 select CEVT_R4K
319 select CSRC_R4K
320 select SYS_HAS_CPU_MIPS32_R1
321 select SYS_HAS_CPU_MIPS32_R2
322 select SYS_SUPPORTS_BIG_ENDIAN
323 select SYS_SUPPORTS_32BIT_KERNEL
324 select SYS_SUPPORTS_MIPS16
325 select SYS_SUPPORTS_MULTITHREADING
326 select SYS_HAS_EARLY_PRINTK
327 select ARCH_REQUIRE_GPIOLIB
328 select SWAP_IO_SPACE
329 select BOOT_RAW
330 select HAVE_MACH_CLKDEV
331 select CLKDEV_LOOKUP
332 select USE_OF
333 select PINCTRL
334 select PINCTRL_LANTIQ
335 select ARCH_HAS_RESET_CONTROLLER
336 select RESET_CONTROLLER
337
338 config LASAT
339 bool "LASAT Networks platforms"
340 select CEVT_R4K
341 select CRC32
342 select CSRC_R4K
343 select DMA_NONCOHERENT
344 select SYS_HAS_EARLY_PRINTK
345 select HW_HAS_PCI
346 select IRQ_MIPS_CPU
347 select PCI_GT64XXX_PCI0
348 select MIPS_NILE4
349 select R5000_CPU_SCACHE
350 select SYS_HAS_CPU_R5000
351 select SYS_SUPPORTS_32BIT_KERNEL
352 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
353 select SYS_SUPPORTS_LITTLE_ENDIAN
354
355 config MACH_LOONGSON32
356 bool "Loongson-1 family of machines"
357 select SYS_SUPPORTS_ZBOOT
358 help
359 This enables support for the Loongson-1 family of machines.
360
361 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
362 the Institute of Computing Technology (ICT), Chinese Academy of
363 Sciences (CAS).
364
365 config MACH_LOONGSON64
366 bool "Loongson-2/3 family of machines"
367 select SYS_SUPPORTS_ZBOOT
368 help
369 This enables the support of Loongson-2/3 family of machines.
370
371 Loongson-2 is a family of single-core CPUs and Loongson-3 is a
372 family of multi-core CPUs. They are both 64-bit general-purpose
373 MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute
374 of Computing Technology (ICT), Chinese Academy of Sciences (CAS)
375 in the People's Republic of China. The chief architect is Professor
376 Weiwu Hu.
377
378 config MACH_PISTACHIO
379 bool "IMG Pistachio SoC based boards"
380 select ARCH_REQUIRE_GPIOLIB
381 select BOOT_ELF32
382 select BOOT_RAW
383 select CEVT_R4K
384 select CLKSRC_MIPS_GIC
385 select COMMON_CLK
386 select CSRC_R4K
387 select DMA_MAYBE_COHERENT
388 select IRQ_MIPS_CPU
389 select LIBFDT
390 select MFD_SYSCON
391 select MIPS_CPU_SCACHE
392 select MIPS_GIC
393 select PINCTRL
394 select REGULATOR
395 select SYS_HAS_CPU_MIPS32_R2
396 select SYS_SUPPORTS_32BIT_KERNEL
397 select SYS_SUPPORTS_LITTLE_ENDIAN
398 select SYS_SUPPORTS_MIPS_CPS
399 select SYS_SUPPORTS_MULTITHREADING
400 select SYS_SUPPORTS_ZBOOT
401 select SYS_HAS_EARLY_PRINTK
402 select USE_GENERIC_EARLY_PRINTK_8250
403 select USE_OF
404 help
405 This enables support for the IMG Pistachio SoC platform.
406
407 config MACH_XILFPGA
408 bool "MIPSfpga Xilinx based boards"
409 select ARCH_REQUIRE_GPIOLIB
410 select BOOT_ELF32
411 select BOOT_RAW
412 select BUILTIN_DTB
413 select CEVT_R4K
414 select COMMON_CLK
415 select CSRC_R4K
416 select IRQ_MIPS_CPU
417 select LIBFDT
418 select MIPS_CPU_SCACHE
419 select SYS_HAS_EARLY_PRINTK
420 select SYS_HAS_CPU_MIPS32_R2
421 select SYS_SUPPORTS_32BIT_KERNEL
422 select SYS_SUPPORTS_LITTLE_ENDIAN
423 select SYS_SUPPORTS_ZBOOT_UART16550
424 select USE_OF
425 select USE_GENERIC_EARLY_PRINTK_8250
426 help
427 This enables support for the IMG University Program MIPSfpga platform.
428
429 config MIPS_MALTA
430 bool "MIPS Malta board"
431 select ARCH_MAY_HAVE_PC_FDC
432 select BOOT_ELF32
433 select BOOT_RAW
434 select BUILTIN_DTB
435 select CEVT_R4K
436 select CSRC_R4K
437 select CLKSRC_MIPS_GIC
438 select COMMON_CLK
439 select DMA_MAYBE_COHERENT
440 select GENERIC_ISA_DMA
441 select HAVE_PCSPKR_PLATFORM
442 select IRQ_MIPS_CPU
443 select MIPS_GIC
444 select HW_HAS_PCI
445 select I8253
446 select I8259
447 select MIPS_BONITO64
448 select MIPS_CPU_SCACHE
449 select MIPS_L1_CACHE_SHIFT_6
450 select PCI_GT64XXX_PCI0
451 select MIPS_MSC
452 select SMP_UP if SMP
453 select SWAP_IO_SPACE
454 select SYS_HAS_CPU_MIPS32_R1
455 select SYS_HAS_CPU_MIPS32_R2
456 select SYS_HAS_CPU_MIPS32_R3_5
457 select SYS_HAS_CPU_MIPS32_R5
458 select SYS_HAS_CPU_MIPS32_R6
459 select SYS_HAS_CPU_MIPS64_R1
460 select SYS_HAS_CPU_MIPS64_R2
461 select SYS_HAS_CPU_MIPS64_R6
462 select SYS_HAS_CPU_NEVADA
463 select SYS_HAS_CPU_RM7000
464 select SYS_SUPPORTS_32BIT_KERNEL
465 select SYS_SUPPORTS_64BIT_KERNEL
466 select SYS_SUPPORTS_BIG_ENDIAN
467 select SYS_SUPPORTS_HIGHMEM
468 select SYS_SUPPORTS_LITTLE_ENDIAN
469 select SYS_SUPPORTS_MICROMIPS
470 select SYS_SUPPORTS_MIPS_CMP
471 select SYS_SUPPORTS_MIPS_CPS
472 select SYS_SUPPORTS_MIPS16
473 select SYS_SUPPORTS_MULTITHREADING
474 select SYS_SUPPORTS_SMARTMIPS
475 select SYS_SUPPORTS_ZBOOT
476 select USE_OF
477 select ZONE_DMA32 if 64BIT
478 select BUILTIN_DTB
479 select LIBFDT
480 help
481 This enables support for the MIPS Technologies Malta evaluation
482 board.
483
484 config MACH_PIC32
485 bool "Microchip PIC32 Family"
486 help
487 This enables support for the Microchip PIC32 family of platforms.
488
489 Microchip PIC32 is a family of general-purpose 32 bit MIPS core
490 microcontrollers.
491
492 config MIPS_SEAD3
493 bool "MIPS SEAD3 board"
494 select BOOT_ELF32
495 select BOOT_RAW
496 select BUILTIN_DTB
497 select CEVT_R4K
498 select CSRC_R4K
499 select CLKSRC_MIPS_GIC
500 select COMMON_CLK
501 select CPU_MIPSR2_IRQ_VI
502 select CPU_MIPSR2_IRQ_EI
503 select DMA_NONCOHERENT
504 select IRQ_MIPS_CPU
505 select MIPS_GIC
506 select LIBFDT
507 select MIPS_MSC
508 select SYS_HAS_CPU_MIPS32_R1
509 select SYS_HAS_CPU_MIPS32_R2
510 select SYS_HAS_CPU_MIPS64_R1
511 select SYS_HAS_EARLY_PRINTK
512 select SYS_SUPPORTS_32BIT_KERNEL
513 select SYS_SUPPORTS_64BIT_KERNEL
514 select SYS_SUPPORTS_BIG_ENDIAN
515 select SYS_SUPPORTS_LITTLE_ENDIAN
516 select SYS_SUPPORTS_SMARTMIPS
517 select SYS_SUPPORTS_MICROMIPS
518 select SYS_SUPPORTS_MIPS16
519 select USB_EHCI_BIG_ENDIAN_DESC
520 select USB_EHCI_BIG_ENDIAN_MMIO
521 select USE_OF
522 help
523 This enables support for the MIPS Technologies SEAD3 evaluation
524 board.
525
526 config NEC_MARKEINS
527 bool "NEC EMMA2RH Mark-eins board"
528 select SOC_EMMA2RH
529 select HW_HAS_PCI
530 help
531 This enables support for the NEC Electronics Mark-eins boards.
532
533 config MACH_VR41XX
534 bool "NEC VR4100 series based machines"
535 select CEVT_R4K
536 select CSRC_R4K
537 select SYS_HAS_CPU_VR41XX
538 select SYS_SUPPORTS_MIPS16
539 select ARCH_REQUIRE_GPIOLIB
540
541 config NXP_STB220
542 bool "NXP STB220 board"
543 select SOC_PNX833X
544 help
545 Support for NXP Semiconductors STB220 Development Board.
546
547 config NXP_STB225
548 bool "NXP 225 board"
549 select SOC_PNX833X
550 select SOC_PNX8335
551 help
552 Support for NXP Semiconductors STB225 Development Board.
553
554 config PMC_MSP
555 bool "PMC-Sierra MSP chipsets"
556 select CEVT_R4K
557 select CSRC_R4K
558 select DMA_NONCOHERENT
559 select SWAP_IO_SPACE
560 select NO_EXCEPT_FILL
561 select BOOT_RAW
562 select SYS_HAS_CPU_MIPS32_R1
563 select SYS_HAS_CPU_MIPS32_R2
564 select SYS_SUPPORTS_32BIT_KERNEL
565 select SYS_SUPPORTS_BIG_ENDIAN
566 select SYS_SUPPORTS_MIPS16
567 select IRQ_MIPS_CPU
568 select SERIAL_8250
569 select SERIAL_8250_CONSOLE
570 select USB_EHCI_BIG_ENDIAN_MMIO
571 select USB_EHCI_BIG_ENDIAN_DESC
572 help
573 This adds support for the PMC-Sierra family of Multi-Service
574 Processor System-On-A-Chips. These parts include a number
575 of integrated peripherals, interfaces and DSPs in addition to
576 a variety of MIPS cores.
577
578 config RALINK
579 bool "Ralink based machines"
580 select CEVT_R4K
581 select CSRC_R4K
582 select BOOT_RAW
583 select DMA_NONCOHERENT
584 select IRQ_MIPS_CPU
585 select USE_OF
586 select SYS_HAS_CPU_MIPS32_R1
587 select SYS_HAS_CPU_MIPS32_R2
588 select SYS_SUPPORTS_32BIT_KERNEL
589 select SYS_SUPPORTS_LITTLE_ENDIAN
590 select SYS_SUPPORTS_MIPS16
591 select SYS_HAS_EARLY_PRINTK
592 select HAVE_MACH_CLKDEV
593 select CLKDEV_LOOKUP
594 select ARCH_HAS_RESET_CONTROLLER
595 select RESET_CONTROLLER
596
597 config SGI_IP22
598 bool "SGI IP22 (Indy/Indigo2)"
599 select FW_ARC
600 select FW_ARC32
601 select BOOT_ELF32
602 select CEVT_R4K
603 select CSRC_R4K
604 select DEFAULT_SGI_PARTITION
605 select DMA_NONCOHERENT
606 select HW_HAS_EISA
607 select I8253
608 select I8259
609 select IP22_CPU_SCACHE
610 select IRQ_MIPS_CPU
611 select GENERIC_ISA_DMA_SUPPORT_BROKEN
612 select SGI_HAS_I8042
613 select SGI_HAS_INDYDOG
614 select SGI_HAS_HAL2
615 select SGI_HAS_SEEQ
616 select SGI_HAS_WD93
617 select SGI_HAS_ZILOG
618 select SWAP_IO_SPACE
619 select SYS_HAS_CPU_R4X00
620 select SYS_HAS_CPU_R5000
621 #
622 # Disable EARLY_PRINTK for now since it leads to overwritten prom
623 # memory during early boot on some machines.
624 #
625 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
626 # for a more details discussion
627 #
628 # select SYS_HAS_EARLY_PRINTK
629 select SYS_SUPPORTS_32BIT_KERNEL
630 select SYS_SUPPORTS_64BIT_KERNEL
631 select SYS_SUPPORTS_BIG_ENDIAN
632 select MIPS_L1_CACHE_SHIFT_7
633 help
634 This are the SGI Indy, Challenge S and Indigo2, as well as certain
635 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
636 that runs on these, say Y here.
637
638 config SGI_IP27
639 bool "SGI IP27 (Origin200/2000)"
640 select FW_ARC
641 select FW_ARC64
642 select BOOT_ELF64
643 select DEFAULT_SGI_PARTITION
644 select DMA_COHERENT
645 select SYS_HAS_EARLY_PRINTK
646 select HW_HAS_PCI
647 select NR_CPUS_DEFAULT_64
648 select SYS_HAS_CPU_R10000
649 select SYS_SUPPORTS_64BIT_KERNEL
650 select SYS_SUPPORTS_BIG_ENDIAN
651 select SYS_SUPPORTS_NUMA
652 select SYS_SUPPORTS_SMP
653 select MIPS_L1_CACHE_SHIFT_7
654 help
655 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
656 workstations. To compile a Linux kernel that runs on these, say Y
657 here.
658
659 config SGI_IP28
660 bool "SGI IP28 (Indigo2 R10k)"
661 select FW_ARC
662 select FW_ARC64
663 select BOOT_ELF64
664 select CEVT_R4K
665 select CSRC_R4K
666 select DEFAULT_SGI_PARTITION
667 select DMA_NONCOHERENT
668 select GENERIC_ISA_DMA_SUPPORT_BROKEN
669 select IRQ_MIPS_CPU
670 select HW_HAS_EISA
671 select I8253
672 select I8259
673 select SGI_HAS_I8042
674 select SGI_HAS_INDYDOG
675 select SGI_HAS_HAL2
676 select SGI_HAS_SEEQ
677 select SGI_HAS_WD93
678 select SGI_HAS_ZILOG
679 select SWAP_IO_SPACE
680 select SYS_HAS_CPU_R10000
681 #
682 # Disable EARLY_PRINTK for now since it leads to overwritten prom
683 # memory during early boot on some machines.
684 #
685 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
686 # for a more details discussion
687 #
688 # select SYS_HAS_EARLY_PRINTK
689 select SYS_SUPPORTS_64BIT_KERNEL
690 select SYS_SUPPORTS_BIG_ENDIAN
691 select MIPS_L1_CACHE_SHIFT_7
692 help
693 This is the SGI Indigo2 with R10000 processor. To compile a Linux
694 kernel that runs on these, say Y here.
695
696 config SGI_IP32
697 bool "SGI IP32 (O2)"
698 select FW_ARC
699 select FW_ARC32
700 select BOOT_ELF32
701 select CEVT_R4K
702 select CSRC_R4K
703 select DMA_NONCOHERENT
704 select HW_HAS_PCI
705 select IRQ_MIPS_CPU
706 select R5000_CPU_SCACHE
707 select RM7000_CPU_SCACHE
708 select SYS_HAS_CPU_R5000
709 select SYS_HAS_CPU_R10000 if BROKEN
710 select SYS_HAS_CPU_RM7000
711 select SYS_HAS_CPU_NEVADA
712 select SYS_SUPPORTS_64BIT_KERNEL
713 select SYS_SUPPORTS_BIG_ENDIAN
714 help
715 If you want this kernel to run on SGI O2 workstation, say Y here.
716
717 config SIBYTE_CRHINE
718 bool "Sibyte BCM91120C-CRhine"
719 select BOOT_ELF32
720 select DMA_COHERENT
721 select SIBYTE_BCM1120
722 select SWAP_IO_SPACE
723 select SYS_HAS_CPU_SB1
724 select SYS_SUPPORTS_BIG_ENDIAN
725 select SYS_SUPPORTS_LITTLE_ENDIAN
726
727 config SIBYTE_CARMEL
728 bool "Sibyte BCM91120x-Carmel"
729 select BOOT_ELF32
730 select DMA_COHERENT
731 select SIBYTE_BCM1120
732 select SWAP_IO_SPACE
733 select SYS_HAS_CPU_SB1
734 select SYS_SUPPORTS_BIG_ENDIAN
735 select SYS_SUPPORTS_LITTLE_ENDIAN
736
737 config SIBYTE_CRHONE
738 bool "Sibyte BCM91125C-CRhone"
739 select BOOT_ELF32
740 select DMA_COHERENT
741 select SIBYTE_BCM1125
742 select SWAP_IO_SPACE
743 select SYS_HAS_CPU_SB1
744 select SYS_SUPPORTS_BIG_ENDIAN
745 select SYS_SUPPORTS_HIGHMEM
746 select SYS_SUPPORTS_LITTLE_ENDIAN
747
748 config SIBYTE_RHONE
749 bool "Sibyte BCM91125E-Rhone"
750 select BOOT_ELF32
751 select DMA_COHERENT
752 select SIBYTE_BCM1125H
753 select SWAP_IO_SPACE
754 select SYS_HAS_CPU_SB1
755 select SYS_SUPPORTS_BIG_ENDIAN
756 select SYS_SUPPORTS_LITTLE_ENDIAN
757
758 config SIBYTE_SWARM
759 bool "Sibyte BCM91250A-SWARM"
760 select BOOT_ELF32
761 select DMA_COHERENT
762 select HAVE_PATA_PLATFORM
763 select SIBYTE_SB1250
764 select SWAP_IO_SPACE
765 select SYS_HAS_CPU_SB1
766 select SYS_SUPPORTS_BIG_ENDIAN
767 select SYS_SUPPORTS_HIGHMEM
768 select SYS_SUPPORTS_LITTLE_ENDIAN
769 select ZONE_DMA32 if 64BIT
770
771 config SIBYTE_LITTLESUR
772 bool "Sibyte BCM91250C2-LittleSur"
773 select BOOT_ELF32
774 select DMA_COHERENT
775 select HAVE_PATA_PLATFORM
776 select SIBYTE_SB1250
777 select SWAP_IO_SPACE
778 select SYS_HAS_CPU_SB1
779 select SYS_SUPPORTS_BIG_ENDIAN
780 select SYS_SUPPORTS_HIGHMEM
781 select SYS_SUPPORTS_LITTLE_ENDIAN
782
783 config SIBYTE_SENTOSA
784 bool "Sibyte BCM91250E-Sentosa"
785 select BOOT_ELF32
786 select DMA_COHERENT
787 select SIBYTE_SB1250
788 select SWAP_IO_SPACE
789 select SYS_HAS_CPU_SB1
790 select SYS_SUPPORTS_BIG_ENDIAN
791 select SYS_SUPPORTS_LITTLE_ENDIAN
792
793 config SIBYTE_BIGSUR
794 bool "Sibyte BCM91480B-BigSur"
795 select BOOT_ELF32
796 select DMA_COHERENT
797 select NR_CPUS_DEFAULT_4
798 select SIBYTE_BCM1x80
799 select SWAP_IO_SPACE
800 select SYS_HAS_CPU_SB1
801 select SYS_SUPPORTS_BIG_ENDIAN
802 select SYS_SUPPORTS_HIGHMEM
803 select SYS_SUPPORTS_LITTLE_ENDIAN
804 select ZONE_DMA32 if 64BIT
805
806 config SNI_RM
807 bool "SNI RM200/300/400"
808 select FW_ARC if CPU_LITTLE_ENDIAN
809 select FW_ARC32 if CPU_LITTLE_ENDIAN
810 select FW_SNIPROM if CPU_BIG_ENDIAN
811 select ARCH_MAY_HAVE_PC_FDC
812 select BOOT_ELF32
813 select CEVT_R4K
814 select CSRC_R4K
815 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
816 select DMA_NONCOHERENT
817 select GENERIC_ISA_DMA
818 select HAVE_PCSPKR_PLATFORM
819 select HW_HAS_EISA
820 select HW_HAS_PCI
821 select IRQ_MIPS_CPU
822 select I8253
823 select I8259
824 select ISA
825 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
826 select SYS_HAS_CPU_R4X00
827 select SYS_HAS_CPU_R5000
828 select SYS_HAS_CPU_R10000
829 select R5000_CPU_SCACHE
830 select SYS_HAS_EARLY_PRINTK
831 select SYS_SUPPORTS_32BIT_KERNEL
832 select SYS_SUPPORTS_64BIT_KERNEL
833 select SYS_SUPPORTS_BIG_ENDIAN
834 select SYS_SUPPORTS_HIGHMEM
835 select SYS_SUPPORTS_LITTLE_ENDIAN
836 help
837 The SNI RM200/300/400 are MIPS-based machines manufactured by
838 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
839 Technology and now in turn merged with Fujitsu. Say Y here to
840 support this machine type.
841
842 config MACH_TX39XX
843 bool "Toshiba TX39 series based machines"
844
845 config MACH_TX49XX
846 bool "Toshiba TX49 series based machines"
847
848 config MIKROTIK_RB532
849 bool "Mikrotik RB532 boards"
850 select CEVT_R4K
851 select CSRC_R4K
852 select DMA_NONCOHERENT
853 select HW_HAS_PCI
854 select IRQ_MIPS_CPU
855 select SYS_HAS_CPU_MIPS32_R1
856 select SYS_SUPPORTS_32BIT_KERNEL
857 select SYS_SUPPORTS_LITTLE_ENDIAN
858 select SWAP_IO_SPACE
859 select BOOT_RAW
860 select ARCH_REQUIRE_GPIOLIB
861 select MIPS_L1_CACHE_SHIFT_4
862 help
863 Support the Mikrotik(tm) RouterBoard 532 series,
864 based on the IDT RC32434 SoC.
865
866 config CAVIUM_OCTEON_SOC
867 bool "Cavium Networks Octeon SoC based boards"
868 select CEVT_R4K
869 select ARCH_PHYS_ADDR_T_64BIT
870 select DMA_COHERENT
871 select SYS_SUPPORTS_64BIT_KERNEL
872 select SYS_SUPPORTS_BIG_ENDIAN
873 select EDAC_SUPPORT
874 select EDAC_ATOMIC_SCRUB
875 select SYS_SUPPORTS_LITTLE_ENDIAN
876 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
877 select SYS_HAS_EARLY_PRINTK
878 select SYS_HAS_CPU_CAVIUM_OCTEON
879 select SWAP_IO_SPACE
880 select HW_HAS_PCI
881 select ZONE_DMA32
882 select HOLES_IN_ZONE
883 select ARCH_REQUIRE_GPIOLIB
884 select LIBFDT
885 select USE_OF
886 select ARCH_SPARSEMEM_ENABLE
887 select SYS_SUPPORTS_SMP
888 select NR_CPUS_DEFAULT_16
889 select BUILTIN_DTB
890 select MTD_COMPLEX_MAPPINGS
891 help
892 This option supports all of the Octeon reference boards from Cavium
893 Networks. It builds a kernel that dynamically determines the Octeon
894 CPU type and supports all known board reference implementations.
895 Some of the supported boards are:
896 EBT3000
897 EBH3000
898 EBH3100
899 Thunder
900 Kodama
901 Hikari
902 Say Y here for most Octeon reference boards.
903
904 config NLM_XLR_BOARD
905 bool "Netlogic XLR/XLS based systems"
906 select BOOT_ELF32
907 select NLM_COMMON
908 select SYS_HAS_CPU_XLR
909 select SYS_SUPPORTS_SMP
910 select HW_HAS_PCI
911 select SWAP_IO_SPACE
912 select SYS_SUPPORTS_32BIT_KERNEL
913 select SYS_SUPPORTS_64BIT_KERNEL
914 select ARCH_PHYS_ADDR_T_64BIT
915 select SYS_SUPPORTS_BIG_ENDIAN
916 select SYS_SUPPORTS_HIGHMEM
917 select DMA_COHERENT
918 select NR_CPUS_DEFAULT_32
919 select CEVT_R4K
920 select CSRC_R4K
921 select IRQ_MIPS_CPU
922 select ZONE_DMA32 if 64BIT
923 select SYNC_R4K
924 select SYS_HAS_EARLY_PRINTK
925 select SYS_SUPPORTS_ZBOOT
926 select SYS_SUPPORTS_ZBOOT_UART16550
927 help
928 Support for systems based on Netlogic XLR and XLS processors.
929 Say Y here if you have a XLR or XLS based board.
930
931 config NLM_XLP_BOARD
932 bool "Netlogic XLP based systems"
933 select BOOT_ELF32
934 select NLM_COMMON
935 select SYS_HAS_CPU_XLP
936 select SYS_SUPPORTS_SMP
937 select HW_HAS_PCI
938 select SYS_SUPPORTS_32BIT_KERNEL
939 select SYS_SUPPORTS_64BIT_KERNEL
940 select ARCH_PHYS_ADDR_T_64BIT
941 select ARCH_REQUIRE_GPIOLIB
942 select SYS_SUPPORTS_BIG_ENDIAN
943 select SYS_SUPPORTS_LITTLE_ENDIAN
944 select SYS_SUPPORTS_HIGHMEM
945 select DMA_COHERENT
946 select NR_CPUS_DEFAULT_32
947 select CEVT_R4K
948 select CSRC_R4K
949 select IRQ_MIPS_CPU
950 select ZONE_DMA32 if 64BIT
951 select SYNC_R4K
952 select SYS_HAS_EARLY_PRINTK
953 select USE_OF
954 select SYS_SUPPORTS_ZBOOT
955 select SYS_SUPPORTS_ZBOOT_UART16550
956 help
957 This board is based on Netlogic XLP Processor.
958 Say Y here if you have a XLP based board.
959
960 config MIPS_PARAVIRT
961 bool "Para-Virtualized guest system"
962 select CEVT_R4K
963 select CSRC_R4K
964 select DMA_COHERENT
965 select SYS_SUPPORTS_64BIT_KERNEL
966 select SYS_SUPPORTS_32BIT_KERNEL
967 select SYS_SUPPORTS_BIG_ENDIAN
968 select SYS_SUPPORTS_SMP
969 select NR_CPUS_DEFAULT_4
970 select SYS_HAS_EARLY_PRINTK
971 select SYS_HAS_CPU_MIPS32_R2
972 select SYS_HAS_CPU_MIPS64_R2
973 select SYS_HAS_CPU_CAVIUM_OCTEON
974 select HW_HAS_PCI
975 select SWAP_IO_SPACE
976 help
977 This option supports guest running under ????
978
979 endchoice
980
981 source "arch/mips/alchemy/Kconfig"
982 source "arch/mips/ath25/Kconfig"
983 source "arch/mips/ath79/Kconfig"
984 source "arch/mips/bcm47xx/Kconfig"
985 source "arch/mips/bcm63xx/Kconfig"
986 source "arch/mips/bmips/Kconfig"
987 source "arch/mips/jazz/Kconfig"
988 source "arch/mips/jz4740/Kconfig"
989 source "arch/mips/lantiq/Kconfig"
990 source "arch/mips/lasat/Kconfig"
991 source "arch/mips/pic32/Kconfig"
992 source "arch/mips/pistachio/Kconfig"
993 source "arch/mips/pmcs-msp71xx/Kconfig"
994 source "arch/mips/ralink/Kconfig"
995 source "arch/mips/sgi-ip27/Kconfig"
996 source "arch/mips/sibyte/Kconfig"
997 source "arch/mips/txx9/Kconfig"
998 source "arch/mips/vr41xx/Kconfig"
999 source "arch/mips/cavium-octeon/Kconfig"
1000 source "arch/mips/loongson32/Kconfig"
1001 source "arch/mips/loongson64/Kconfig"
1002 source "arch/mips/netlogic/Kconfig"
1003 source "arch/mips/paravirt/Kconfig"
1004 source "arch/mips/xilfpga/Kconfig"
1005
1006 endmenu
1007
1008 config RWSEM_GENERIC_SPINLOCK
1009 bool
1010 default y
1011
1012 config RWSEM_XCHGADD_ALGORITHM
1013 bool
1014
1015 config ARCH_HAS_ILOG2_U32
1016 bool
1017 default n
1018
1019 config ARCH_HAS_ILOG2_U64
1020 bool
1021 default n
1022
1023 config GENERIC_HWEIGHT
1024 bool
1025 default y
1026
1027 config GENERIC_CALIBRATE_DELAY
1028 bool
1029 default y
1030
1031 config SCHED_OMIT_FRAME_POINTER
1032 bool
1033 default y
1034
1035 #
1036 # Select some configuration options automatically based on user selections.
1037 #
1038 config FW_ARC
1039 bool
1040
1041 config ARCH_MAY_HAVE_PC_FDC
1042 bool
1043
1044 config BOOT_RAW
1045 bool
1046
1047 config CEVT_BCM1480
1048 bool
1049
1050 config CEVT_DS1287
1051 bool
1052
1053 config CEVT_GT641XX
1054 bool
1055
1056 config CEVT_R4K
1057 bool
1058
1059 config CEVT_SB1250
1060 bool
1061
1062 config CEVT_TXX9
1063 bool
1064
1065 config CSRC_BCM1480
1066 bool
1067
1068 config CSRC_IOASIC
1069 bool
1070
1071 config CSRC_R4K
1072 bool
1073
1074 config CSRC_SB1250
1075 bool
1076
1077 config MIPS_CLOCK_VSYSCALL
1078 def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1079
1080 config GPIO_TXX9
1081 select ARCH_REQUIRE_GPIOLIB
1082 bool
1083
1084 config FW_CFE
1085 bool
1086
1087 config ARCH_DMA_ADDR_T_64BIT
1088 def_bool (HIGHMEM && ARCH_PHYS_ADDR_T_64BIT) || 64BIT
1089
1090 config ARCH_SUPPORTS_UPROBES
1091 bool
1092
1093 config DMA_MAYBE_COHERENT
1094 select DMA_NONCOHERENT
1095 bool
1096
1097 config DMA_COHERENT
1098 bool
1099
1100 config DMA_NONCOHERENT
1101 bool
1102 select NEED_DMA_MAP_STATE
1103
1104 config NEED_DMA_MAP_STATE
1105 bool
1106
1107 config SYS_HAS_EARLY_PRINTK
1108 bool
1109
1110 config HOTPLUG_CPU
1111 bool "Support for hot-pluggable CPUs"
1112 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
1113 help
1114 Say Y here to allow turning CPUs off and on. CPUs can be
1115 controlled through /sys/devices/system/cpu.
1116 (Note: power management support will enable this option
1117 automatically on SMP systems. )
1118 Say N if you want to disable CPU hotplug.
1119
1120 config SYS_SUPPORTS_HOTPLUG_CPU
1121 bool
1122
1123 config MIPS_BONITO64
1124 bool
1125
1126 config MIPS_MSC
1127 bool
1128
1129 config MIPS_NILE4
1130 bool
1131
1132 config SYNC_R4K
1133 bool
1134
1135 config MIPS_MACHINE
1136 def_bool n
1137
1138 config NO_IOPORT_MAP
1139 def_bool n
1140
1141 config GENERIC_CSUM
1142 bool
1143
1144 config GENERIC_ISA_DMA
1145 bool
1146 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1147 select ISA_DMA_API
1148
1149 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1150 bool
1151 select GENERIC_ISA_DMA
1152
1153 config ISA_DMA_API
1154 bool
1155
1156 config HOLES_IN_ZONE
1157 bool
1158
1159 #
1160 # Endianness selection. Sufficiently obscure so many users don't know what to
1161 # answer,so we try hard to limit the available choices. Also the use of a
1162 # choice statement should be more obvious to the user.
1163 #
1164 choice
1165 prompt "Endianness selection"
1166 help
1167 Some MIPS machines can be configured for either little or big endian
1168 byte order. These modes require different kernels and a different
1169 Linux distribution. In general there is one preferred byteorder for a
1170 particular system but some systems are just as commonly used in the
1171 one or the other endianness.
1172
1173 config CPU_BIG_ENDIAN
1174 bool "Big endian"
1175 depends on SYS_SUPPORTS_BIG_ENDIAN
1176
1177 config CPU_LITTLE_ENDIAN
1178 bool "Little endian"
1179 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1180
1181 endchoice
1182
1183 config EXPORT_UASM
1184 bool
1185
1186 config SYS_SUPPORTS_APM_EMULATION
1187 bool
1188
1189 config SYS_SUPPORTS_BIG_ENDIAN
1190 bool
1191
1192 config SYS_SUPPORTS_LITTLE_ENDIAN
1193 bool
1194
1195 config SYS_SUPPORTS_HUGETLBFS
1196 bool
1197 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1198 default y
1199
1200 config MIPS_HUGE_TLB_SUPPORT
1201 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1202
1203 config IRQ_CPU_RM7K
1204 bool
1205
1206 config IRQ_MSP_SLP
1207 bool
1208
1209 config IRQ_MSP_CIC
1210 bool
1211
1212 config IRQ_TXX9
1213 bool
1214
1215 config IRQ_GT641XX
1216 bool
1217
1218 config PCI_GT64XXX_PCI0
1219 bool
1220
1221 config NO_EXCEPT_FILL
1222 bool
1223
1224 config SOC_EMMA2RH
1225 bool
1226 select CEVT_R4K
1227 select CSRC_R4K
1228 select DMA_NONCOHERENT
1229 select IRQ_MIPS_CPU
1230 select SWAP_IO_SPACE
1231 select SYS_HAS_CPU_R5500
1232 select SYS_SUPPORTS_32BIT_KERNEL
1233 select SYS_SUPPORTS_64BIT_KERNEL
1234 select SYS_SUPPORTS_BIG_ENDIAN
1235
1236 config SOC_PNX833X
1237 bool
1238 select CEVT_R4K
1239 select CSRC_R4K
1240 select IRQ_MIPS_CPU
1241 select DMA_NONCOHERENT
1242 select SYS_HAS_CPU_MIPS32_R2
1243 select SYS_SUPPORTS_32BIT_KERNEL
1244 select SYS_SUPPORTS_LITTLE_ENDIAN
1245 select SYS_SUPPORTS_BIG_ENDIAN
1246 select SYS_SUPPORTS_MIPS16
1247 select CPU_MIPSR2_IRQ_VI
1248
1249 config SOC_PNX8335
1250 bool
1251 select SOC_PNX833X
1252
1253 config MIPS_SPRAM
1254 bool
1255
1256 config SWAP_IO_SPACE
1257 bool
1258
1259 config SGI_HAS_INDYDOG
1260 bool
1261
1262 config SGI_HAS_HAL2
1263 bool
1264
1265 config SGI_HAS_SEEQ
1266 bool
1267
1268 config SGI_HAS_WD93
1269 bool
1270
1271 config SGI_HAS_ZILOG
1272 bool
1273
1274 config SGI_HAS_I8042
1275 bool
1276
1277 config DEFAULT_SGI_PARTITION
1278 bool
1279
1280 config FW_ARC32
1281 bool
1282
1283 config FW_SNIPROM
1284 bool
1285
1286 config BOOT_ELF32
1287 bool
1288
1289 config MIPS_L1_CACHE_SHIFT_4
1290 bool
1291
1292 config MIPS_L1_CACHE_SHIFT_5
1293 bool
1294
1295 config MIPS_L1_CACHE_SHIFT_6
1296 bool
1297
1298 config MIPS_L1_CACHE_SHIFT_7
1299 bool
1300
1301 config MIPS_L1_CACHE_SHIFT
1302 int
1303 default "7" if MIPS_L1_CACHE_SHIFT_7
1304 default "6" if MIPS_L1_CACHE_SHIFT_6
1305 default "5" if MIPS_L1_CACHE_SHIFT_5
1306 default "4" if MIPS_L1_CACHE_SHIFT_4
1307 default "5"
1308
1309 config HAVE_STD_PC_SERIAL_PORT
1310 bool
1311
1312 config ARC_CONSOLE
1313 bool "ARC console support"
1314 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1315
1316 config ARC_MEMORY
1317 bool
1318 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1319 default y
1320
1321 config ARC_PROMLIB
1322 bool
1323 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1324 default y
1325
1326 config FW_ARC64
1327 bool
1328
1329 config BOOT_ELF64
1330 bool
1331
1332 menu "CPU selection"
1333
1334 choice
1335 prompt "CPU type"
1336 default CPU_R4X00
1337
1338 config CPU_LOONGSON3
1339 bool "Loongson 3 CPU"
1340 depends on SYS_HAS_CPU_LOONGSON3
1341 select CPU_SUPPORTS_64BIT_KERNEL
1342 select CPU_SUPPORTS_HIGHMEM
1343 select CPU_SUPPORTS_HUGEPAGES
1344 select WEAK_ORDERING
1345 select WEAK_REORDERING_BEYOND_LLSC
1346 select ARCH_REQUIRE_GPIOLIB
1347 help
1348 The Loongson 3 processor implements the MIPS64R2 instruction
1349 set with many extensions.
1350
1351 config CPU_LOONGSON2E
1352 bool "Loongson 2E"
1353 depends on SYS_HAS_CPU_LOONGSON2E
1354 select CPU_LOONGSON2
1355 help
1356 The Loongson 2E processor implements the MIPS III instruction set
1357 with many extensions.
1358
1359 It has an internal FPGA northbridge, which is compatible to
1360 bonito64.
1361
1362 config CPU_LOONGSON2F
1363 bool "Loongson 2F"
1364 depends on SYS_HAS_CPU_LOONGSON2F
1365 select CPU_LOONGSON2
1366 select ARCH_REQUIRE_GPIOLIB
1367 help
1368 The Loongson 2F processor implements the MIPS III instruction set
1369 with many extensions.
1370
1371 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1372 have a similar programming interface with FPGA northbridge used in
1373 Loongson2E.
1374
1375 config CPU_LOONGSON1B
1376 bool "Loongson 1B"
1377 depends on SYS_HAS_CPU_LOONGSON1B
1378 select CPU_LOONGSON1
1379 help
1380 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1381 release 2 instruction set.
1382
1383 config CPU_MIPS32_R1
1384 bool "MIPS32 Release 1"
1385 depends on SYS_HAS_CPU_MIPS32_R1
1386 select CPU_HAS_PREFETCH
1387 select CPU_SUPPORTS_32BIT_KERNEL
1388 select CPU_SUPPORTS_HIGHMEM
1389 help
1390 Choose this option to build a kernel for release 1 or later of the
1391 MIPS32 architecture. Most modern embedded systems with a 32-bit
1392 MIPS processor are based on a MIPS32 processor. If you know the
1393 specific type of processor in your system, choose those that one
1394 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1395 Release 2 of the MIPS32 architecture is available since several
1396 years so chances are you even have a MIPS32 Release 2 processor
1397 in which case you should choose CPU_MIPS32_R2 instead for better
1398 performance.
1399
1400 config CPU_MIPS32_R2
1401 bool "MIPS32 Release 2"
1402 depends on SYS_HAS_CPU_MIPS32_R2
1403 select CPU_HAS_PREFETCH
1404 select CPU_SUPPORTS_32BIT_KERNEL
1405 select CPU_SUPPORTS_HIGHMEM
1406 select CPU_SUPPORTS_MSA
1407 select HAVE_KVM
1408 help
1409 Choose this option to build a kernel for release 2 or later of the
1410 MIPS32 architecture. Most modern embedded systems with a 32-bit
1411 MIPS processor are based on a MIPS32 processor. If you know the
1412 specific type of processor in your system, choose those that one
1413 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1414
1415 config CPU_MIPS32_R6
1416 bool "MIPS32 Release 6"
1417 depends on SYS_HAS_CPU_MIPS32_R6
1418 select CPU_HAS_PREFETCH
1419 select CPU_SUPPORTS_32BIT_KERNEL
1420 select CPU_SUPPORTS_HIGHMEM
1421 select CPU_SUPPORTS_MSA
1422 select GENERIC_CSUM
1423 select HAVE_KVM
1424 select MIPS_O32_FP64_SUPPORT
1425 help
1426 Choose this option to build a kernel for release 6 or later of the
1427 MIPS32 architecture. New MIPS processors, starting with the Warrior
1428 family, are based on a MIPS32r6 processor. If you own an older
1429 processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1430
1431 config CPU_MIPS64_R1
1432 bool "MIPS64 Release 1"
1433 depends on SYS_HAS_CPU_MIPS64_R1
1434 select CPU_HAS_PREFETCH
1435 select CPU_SUPPORTS_32BIT_KERNEL
1436 select CPU_SUPPORTS_64BIT_KERNEL
1437 select CPU_SUPPORTS_HIGHMEM
1438 select CPU_SUPPORTS_HUGEPAGES
1439 help
1440 Choose this option to build a kernel for release 1 or later of the
1441 MIPS64 architecture. Many modern embedded systems with a 64-bit
1442 MIPS processor are based on a MIPS64 processor. If you know the
1443 specific type of processor in your system, choose those that one
1444 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1445 Release 2 of the MIPS64 architecture is available since several
1446 years so chances are you even have a MIPS64 Release 2 processor
1447 in which case you should choose CPU_MIPS64_R2 instead for better
1448 performance.
1449
1450 config CPU_MIPS64_R2
1451 bool "MIPS64 Release 2"
1452 depends on SYS_HAS_CPU_MIPS64_R2
1453 select CPU_HAS_PREFETCH
1454 select CPU_SUPPORTS_32BIT_KERNEL
1455 select CPU_SUPPORTS_64BIT_KERNEL
1456 select CPU_SUPPORTS_HIGHMEM
1457 select CPU_SUPPORTS_HUGEPAGES
1458 select CPU_SUPPORTS_MSA
1459 help
1460 Choose this option to build a kernel for release 2 or later of the
1461 MIPS64 architecture. Many modern embedded systems with a 64-bit
1462 MIPS processor are based on a MIPS64 processor. If you know the
1463 specific type of processor in your system, choose those that one
1464 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1465
1466 config CPU_MIPS64_R6
1467 bool "MIPS64 Release 6"
1468 depends on SYS_HAS_CPU_MIPS64_R6
1469 select CPU_HAS_PREFETCH
1470 select CPU_SUPPORTS_32BIT_KERNEL
1471 select CPU_SUPPORTS_64BIT_KERNEL
1472 select CPU_SUPPORTS_HIGHMEM
1473 select CPU_SUPPORTS_MSA
1474 select GENERIC_CSUM
1475 select MIPS_O32_FP64_SUPPORT if MIPS32_O32
1476 help
1477 Choose this option to build a kernel for release 6 or later of the
1478 MIPS64 architecture. New MIPS processors, starting with the Warrior
1479 family, are based on a MIPS64r6 processor. If you own an older
1480 processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1481
1482 config CPU_R3000
1483 bool "R3000"
1484 depends on SYS_HAS_CPU_R3000
1485 select CPU_HAS_WB
1486 select CPU_SUPPORTS_32BIT_KERNEL
1487 select CPU_SUPPORTS_HIGHMEM
1488 help
1489 Please make sure to pick the right CPU type. Linux/MIPS is not
1490 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1491 *not* work on R4000 machines and vice versa. However, since most
1492 of the supported machines have an R4000 (or similar) CPU, R4x00
1493 might be a safe bet. If the resulting kernel does not work,
1494 try to recompile with R3000.
1495
1496 config CPU_TX39XX
1497 bool "R39XX"
1498 depends on SYS_HAS_CPU_TX39XX
1499 select CPU_SUPPORTS_32BIT_KERNEL
1500
1501 config CPU_VR41XX
1502 bool "R41xx"
1503 depends on SYS_HAS_CPU_VR41XX
1504 select CPU_SUPPORTS_32BIT_KERNEL
1505 select CPU_SUPPORTS_64BIT_KERNEL
1506 help
1507 The options selects support for the NEC VR4100 series of processors.
1508 Only choose this option if you have one of these processors as a
1509 kernel built with this option will not run on any other type of
1510 processor or vice versa.
1511
1512 config CPU_R4300
1513 bool "R4300"
1514 depends on SYS_HAS_CPU_R4300
1515 select CPU_SUPPORTS_32BIT_KERNEL
1516 select CPU_SUPPORTS_64BIT_KERNEL
1517 help
1518 MIPS Technologies R4300-series processors.
1519
1520 config CPU_R4X00
1521 bool "R4x00"
1522 depends on SYS_HAS_CPU_R4X00
1523 select CPU_SUPPORTS_32BIT_KERNEL
1524 select CPU_SUPPORTS_64BIT_KERNEL
1525 select CPU_SUPPORTS_HUGEPAGES
1526 help
1527 MIPS Technologies R4000-series processors other than 4300, including
1528 the R4000, R4400, R4600, and 4700.
1529
1530 config CPU_TX49XX
1531 bool "R49XX"
1532 depends on SYS_HAS_CPU_TX49XX
1533 select CPU_HAS_PREFETCH
1534 select CPU_SUPPORTS_32BIT_KERNEL
1535 select CPU_SUPPORTS_64BIT_KERNEL
1536 select CPU_SUPPORTS_HUGEPAGES
1537
1538 config CPU_R5000
1539 bool "R5000"
1540 depends on SYS_HAS_CPU_R5000
1541 select CPU_SUPPORTS_32BIT_KERNEL
1542 select CPU_SUPPORTS_64BIT_KERNEL
1543 select CPU_SUPPORTS_HUGEPAGES
1544 help
1545 MIPS Technologies R5000-series processors other than the Nevada.
1546
1547 config CPU_R5432
1548 bool "R5432"
1549 depends on SYS_HAS_CPU_R5432
1550 select CPU_SUPPORTS_32BIT_KERNEL
1551 select CPU_SUPPORTS_64BIT_KERNEL
1552 select CPU_SUPPORTS_HUGEPAGES
1553
1554 config CPU_R5500
1555 bool "R5500"
1556 depends on SYS_HAS_CPU_R5500
1557 select CPU_SUPPORTS_32BIT_KERNEL
1558 select CPU_SUPPORTS_64BIT_KERNEL
1559 select CPU_SUPPORTS_HUGEPAGES
1560 help
1561 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1562 instruction set.
1563
1564 config CPU_R6000
1565 bool "R6000"
1566 depends on SYS_HAS_CPU_R6000
1567 select CPU_SUPPORTS_32BIT_KERNEL
1568 help
1569 MIPS Technologies R6000 and R6000A series processors. Note these
1570 processors are extremely rare and the support for them is incomplete.
1571
1572 config CPU_NEVADA
1573 bool "RM52xx"
1574 depends on SYS_HAS_CPU_NEVADA
1575 select CPU_SUPPORTS_32BIT_KERNEL
1576 select CPU_SUPPORTS_64BIT_KERNEL
1577 select CPU_SUPPORTS_HUGEPAGES
1578 help
1579 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1580
1581 config CPU_R8000
1582 bool "R8000"
1583 depends on SYS_HAS_CPU_R8000
1584 select CPU_HAS_PREFETCH
1585 select CPU_SUPPORTS_64BIT_KERNEL
1586 help
1587 MIPS Technologies R8000 processors. Note these processors are
1588 uncommon and the support for them is incomplete.
1589
1590 config CPU_R10000
1591 bool "R10000"
1592 depends on SYS_HAS_CPU_R10000
1593 select CPU_HAS_PREFETCH
1594 select CPU_SUPPORTS_32BIT_KERNEL
1595 select CPU_SUPPORTS_64BIT_KERNEL
1596 select CPU_SUPPORTS_HIGHMEM
1597 select CPU_SUPPORTS_HUGEPAGES
1598 help
1599 MIPS Technologies R10000-series processors.
1600
1601 config CPU_RM7000
1602 bool "RM7000"
1603 depends on SYS_HAS_CPU_RM7000
1604 select CPU_HAS_PREFETCH
1605 select CPU_SUPPORTS_32BIT_KERNEL
1606 select CPU_SUPPORTS_64BIT_KERNEL
1607 select CPU_SUPPORTS_HIGHMEM
1608 select CPU_SUPPORTS_HUGEPAGES
1609
1610 config CPU_SB1
1611 bool "SB1"
1612 depends on SYS_HAS_CPU_SB1
1613 select CPU_SUPPORTS_32BIT_KERNEL
1614 select CPU_SUPPORTS_64BIT_KERNEL
1615 select CPU_SUPPORTS_HIGHMEM
1616 select CPU_SUPPORTS_HUGEPAGES
1617 select WEAK_ORDERING
1618
1619 config CPU_CAVIUM_OCTEON
1620 bool "Cavium Octeon processor"
1621 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1622 select CPU_HAS_PREFETCH
1623 select CPU_SUPPORTS_64BIT_KERNEL
1624 select WEAK_ORDERING
1625 select CPU_SUPPORTS_HIGHMEM
1626 select CPU_SUPPORTS_HUGEPAGES
1627 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1628 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1629 select MIPS_L1_CACHE_SHIFT_7
1630 help
1631 The Cavium Octeon processor is a highly integrated chip containing
1632 many ethernet hardware widgets for networking tasks. The processor
1633 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1634 Full details can be found at http://www.caviumnetworks.com.
1635
1636 config CPU_BMIPS
1637 bool "Broadcom BMIPS"
1638 depends on SYS_HAS_CPU_BMIPS
1639 select CPU_MIPS32
1640 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1641 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1642 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1643 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1644 select CPU_SUPPORTS_32BIT_KERNEL
1645 select DMA_NONCOHERENT
1646 select IRQ_MIPS_CPU
1647 select SWAP_IO_SPACE
1648 select WEAK_ORDERING
1649 select CPU_SUPPORTS_HIGHMEM
1650 select CPU_HAS_PREFETCH
1651 help
1652 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1653
1654 config CPU_XLR
1655 bool "Netlogic XLR SoC"
1656 depends on SYS_HAS_CPU_XLR
1657 select CPU_SUPPORTS_32BIT_KERNEL
1658 select CPU_SUPPORTS_64BIT_KERNEL
1659 select CPU_SUPPORTS_HIGHMEM
1660 select CPU_SUPPORTS_HUGEPAGES
1661 select WEAK_ORDERING
1662 select WEAK_REORDERING_BEYOND_LLSC
1663 help
1664 Netlogic Microsystems XLR/XLS processors.
1665
1666 config CPU_XLP
1667 bool "Netlogic XLP SoC"
1668 depends on SYS_HAS_CPU_XLP
1669 select CPU_SUPPORTS_32BIT_KERNEL
1670 select CPU_SUPPORTS_64BIT_KERNEL
1671 select CPU_SUPPORTS_HIGHMEM
1672 select WEAK_ORDERING
1673 select WEAK_REORDERING_BEYOND_LLSC
1674 select CPU_HAS_PREFETCH
1675 select CPU_MIPSR2
1676 select CPU_SUPPORTS_HUGEPAGES
1677 help
1678 Netlogic Microsystems XLP processors.
1679 endchoice
1680
1681 config CPU_MIPS32_3_5_FEATURES
1682 bool "MIPS32 Release 3.5 Features"
1683 depends on SYS_HAS_CPU_MIPS32_R3_5
1684 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1685 help
1686 Choose this option to build a kernel for release 2 or later of the
1687 MIPS32 architecture including features from the 3.5 release such as
1688 support for Enhanced Virtual Addressing (EVA).
1689
1690 config CPU_MIPS32_3_5_EVA
1691 bool "Enhanced Virtual Addressing (EVA)"
1692 depends on CPU_MIPS32_3_5_FEATURES
1693 select EVA
1694 default y
1695 help
1696 Choose this option if you want to enable the Enhanced Virtual
1697 Addressing (EVA) on your MIPS32 core (such as proAptiv).
1698 One of its primary benefits is an increase in the maximum size
1699 of lowmem (up to 3GB). If unsure, say 'N' here.
1700
1701 config CPU_MIPS32_R5_FEATURES
1702 bool "MIPS32 Release 5 Features"
1703 depends on SYS_HAS_CPU_MIPS32_R5
1704 depends on CPU_MIPS32_R2
1705 help
1706 Choose this option to build a kernel for release 2 or later of the
1707 MIPS32 architecture including features from release 5 such as
1708 support for Extended Physical Addressing (XPA).
1709
1710 config CPU_MIPS32_R5_XPA
1711 bool "Extended Physical Addressing (XPA)"
1712 depends on CPU_MIPS32_R5_FEATURES
1713 depends on !EVA
1714 depends on !PAGE_SIZE_4KB
1715 depends on SYS_SUPPORTS_HIGHMEM
1716 select XPA
1717 select HIGHMEM
1718 select ARCH_PHYS_ADDR_T_64BIT
1719 default n
1720 help
1721 Choose this option if you want to enable the Extended Physical
1722 Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1723 benefit is to increase physical addressing equal to or greater
1724 than 40 bits. Note that this has the side effect of turning on
1725 64-bit addressing which in turn makes the PTEs 64-bit in size.
1726 If unsure, say 'N' here.
1727
1728 if CPU_LOONGSON2F
1729 config CPU_NOP_WORKAROUNDS
1730 bool
1731
1732 config CPU_JUMP_WORKAROUNDS
1733 bool
1734
1735 config CPU_LOONGSON2F_WORKAROUNDS
1736 bool "Loongson 2F Workarounds"
1737 default y
1738 select CPU_NOP_WORKAROUNDS
1739 select CPU_JUMP_WORKAROUNDS
1740 help
1741 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1742 require workarounds. Without workarounds the system may hang
1743 unexpectedly. For more information please refer to the gas
1744 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1745
1746 Loongson 2F03 and later have fixed these issues and no workarounds
1747 are needed. The workarounds have no significant side effect on them
1748 but may decrease the performance of the system so this option should
1749 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1750 systems.
1751
1752 If unsure, please say Y.
1753 endif # CPU_LOONGSON2F
1754
1755 config SYS_SUPPORTS_ZBOOT
1756 bool
1757 select HAVE_KERNEL_GZIP
1758 select HAVE_KERNEL_BZIP2
1759 select HAVE_KERNEL_LZ4
1760 select HAVE_KERNEL_LZMA
1761 select HAVE_KERNEL_LZO
1762 select HAVE_KERNEL_XZ
1763
1764 config SYS_SUPPORTS_ZBOOT_UART16550
1765 bool
1766 select SYS_SUPPORTS_ZBOOT
1767
1768 config SYS_SUPPORTS_ZBOOT_UART_PROM
1769 bool
1770 select SYS_SUPPORTS_ZBOOT
1771
1772 config CPU_LOONGSON2
1773 bool
1774 select CPU_SUPPORTS_32BIT_KERNEL
1775 select CPU_SUPPORTS_64BIT_KERNEL
1776 select CPU_SUPPORTS_HIGHMEM
1777 select CPU_SUPPORTS_HUGEPAGES
1778
1779 config CPU_LOONGSON1
1780 bool
1781 select CPU_MIPS32
1782 select CPU_MIPSR2
1783 select CPU_HAS_PREFETCH
1784 select CPU_SUPPORTS_32BIT_KERNEL
1785 select CPU_SUPPORTS_HIGHMEM
1786 select CPU_SUPPORTS_CPUFREQ
1787
1788 config CPU_BMIPS32_3300
1789 select SMP_UP if SMP
1790 bool
1791
1792 config CPU_BMIPS4350
1793 bool
1794 select SYS_SUPPORTS_SMP
1795 select SYS_SUPPORTS_HOTPLUG_CPU
1796
1797 config CPU_BMIPS4380
1798 bool
1799 select MIPS_L1_CACHE_SHIFT_6
1800 select SYS_SUPPORTS_SMP
1801 select SYS_SUPPORTS_HOTPLUG_CPU
1802
1803 config CPU_BMIPS5000
1804 bool
1805 select MIPS_CPU_SCACHE
1806 select MIPS_L1_CACHE_SHIFT_7
1807 select SYS_SUPPORTS_SMP
1808 select SYS_SUPPORTS_HOTPLUG_CPU
1809
1810 config SYS_HAS_CPU_LOONGSON3
1811 bool
1812 select CPU_SUPPORTS_CPUFREQ
1813
1814 config SYS_HAS_CPU_LOONGSON2E
1815 bool
1816
1817 config SYS_HAS_CPU_LOONGSON2F
1818 bool
1819 select CPU_SUPPORTS_CPUFREQ
1820 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1821 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1822
1823 config SYS_HAS_CPU_LOONGSON1B
1824 bool
1825
1826 config SYS_HAS_CPU_MIPS32_R1
1827 bool
1828
1829 config SYS_HAS_CPU_MIPS32_R2
1830 bool
1831
1832 config SYS_HAS_CPU_MIPS32_R3_5
1833 bool
1834
1835 config SYS_HAS_CPU_MIPS32_R5
1836 bool
1837
1838 config SYS_HAS_CPU_MIPS32_R6
1839 bool
1840
1841 config SYS_HAS_CPU_MIPS64_R1
1842 bool
1843
1844 config SYS_HAS_CPU_MIPS64_R2
1845 bool
1846
1847 config SYS_HAS_CPU_MIPS64_R6
1848 bool
1849
1850 config SYS_HAS_CPU_R3000
1851 bool
1852
1853 config SYS_HAS_CPU_TX39XX
1854 bool
1855
1856 config SYS_HAS_CPU_VR41XX
1857 bool
1858
1859 config SYS_HAS_CPU_R4300
1860 bool
1861
1862 config SYS_HAS_CPU_R4X00
1863 bool
1864
1865 config SYS_HAS_CPU_TX49XX
1866 bool
1867
1868 config SYS_HAS_CPU_R5000
1869 bool
1870
1871 config SYS_HAS_CPU_R5432
1872 bool
1873
1874 config SYS_HAS_CPU_R5500
1875 bool
1876
1877 config SYS_HAS_CPU_R6000
1878 bool
1879
1880 config SYS_HAS_CPU_NEVADA
1881 bool
1882
1883 config SYS_HAS_CPU_R8000
1884 bool
1885
1886 config SYS_HAS_CPU_R10000
1887 bool
1888
1889 config SYS_HAS_CPU_RM7000
1890 bool
1891
1892 config SYS_HAS_CPU_SB1
1893 bool
1894
1895 config SYS_HAS_CPU_CAVIUM_OCTEON
1896 bool
1897
1898 config SYS_HAS_CPU_BMIPS
1899 bool
1900
1901 config SYS_HAS_CPU_BMIPS32_3300
1902 bool
1903 select SYS_HAS_CPU_BMIPS
1904
1905 config SYS_HAS_CPU_BMIPS4350
1906 bool
1907 select SYS_HAS_CPU_BMIPS
1908
1909 config SYS_HAS_CPU_BMIPS4380
1910 bool
1911 select SYS_HAS_CPU_BMIPS
1912
1913 config SYS_HAS_CPU_BMIPS5000
1914 bool
1915 select SYS_HAS_CPU_BMIPS
1916
1917 config SYS_HAS_CPU_XLR
1918 bool
1919
1920 config SYS_HAS_CPU_XLP
1921 bool
1922
1923 config MIPS_MALTA_PM
1924 depends on MIPS_MALTA
1925 depends on PCI
1926 bool
1927 default y
1928
1929 #
1930 # CPU may reorder R->R, R->W, W->R, W->W
1931 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1932 #
1933 config WEAK_ORDERING
1934 bool
1935
1936 #
1937 # CPU may reorder reads and writes beyond LL/SC
1938 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1939 #
1940 config WEAK_REORDERING_BEYOND_LLSC
1941 bool
1942 endmenu
1943
1944 #
1945 # These two indicate any level of the MIPS32 and MIPS64 architecture
1946 #
1947 config CPU_MIPS32
1948 bool
1949 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
1950
1951 config CPU_MIPS64
1952 bool
1953 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
1954
1955 #
1956 # These two indicate the revision of the architecture, either Release 1 or Release 2
1957 #
1958 config CPU_MIPSR1
1959 bool
1960 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1961
1962 config CPU_MIPSR2
1963 bool
1964 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1965 select MIPS_SPRAM
1966
1967 config CPU_MIPSR6
1968 bool
1969 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
1970 select MIPS_SPRAM
1971
1972 config EVA
1973 bool
1974
1975 config XPA
1976 bool
1977
1978 config SYS_SUPPORTS_32BIT_KERNEL
1979 bool
1980 config SYS_SUPPORTS_64BIT_KERNEL
1981 bool
1982 config CPU_SUPPORTS_32BIT_KERNEL
1983 bool
1984 config CPU_SUPPORTS_64BIT_KERNEL
1985 bool
1986 config CPU_SUPPORTS_CPUFREQ
1987 bool
1988 config CPU_SUPPORTS_ADDRWINCFG
1989 bool
1990 config CPU_SUPPORTS_HUGEPAGES
1991 bool
1992 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1993 bool
1994 config MIPS_PGD_C0_CONTEXT
1995 bool
1996 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1997
1998 #
1999 # Set to y for ptrace access to watch registers.
2000 #
2001 config HARDWARE_WATCHPOINTS
2002 bool
2003 default y if CPU_MIPSR1 || CPU_MIPSR2
2004
2005 menu "Kernel type"
2006
2007 choice
2008 prompt "Kernel code model"
2009 help
2010 You should only select this option if you have a workload that
2011 actually benefits from 64-bit processing or if your machine has
2012 large memory. You will only be presented a single option in this
2013 menu if your system does not support both 32-bit and 64-bit kernels.
2014
2015 config 32BIT
2016 bool "32-bit kernel"
2017 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2018 select TRAD_SIGNALS
2019 help
2020 Select this option if you want to build a 32-bit kernel.
2021
2022 config 64BIT
2023 bool "64-bit kernel"
2024 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2025 help
2026 Select this option if you want to build a 64-bit kernel.
2027
2028 endchoice
2029
2030 config KVM_GUEST
2031 bool "KVM Guest Kernel"
2032 depends on BROKEN_ON_SMP
2033 help
2034 Select this option if building a guest kernel for KVM (Trap & Emulate)
2035 mode.
2036
2037 config KVM_GUEST_TIMER_FREQ
2038 int "Count/Compare Timer Frequency (MHz)"
2039 depends on KVM_GUEST
2040 default 100
2041 help
2042 Set this to non-zero if building a guest kernel for KVM to skip RTC
2043 emulation when determining guest CPU Frequency. Instead, the guest's
2044 timer frequency is specified directly.
2045
2046 choice
2047 prompt "Kernel page size"
2048 default PAGE_SIZE_4KB
2049
2050 config PAGE_SIZE_4KB
2051 bool "4kB"
2052 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
2053 help
2054 This option select the standard 4kB Linux page size. On some
2055 R3000-family processors this is the only available page size. Using
2056 4kB page size will minimize memory consumption and is therefore
2057 recommended for low memory systems.
2058
2059 config PAGE_SIZE_8KB
2060 bool "8kB"
2061 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
2062 help
2063 Using 8kB page size will result in higher performance kernel at
2064 the price of higher memory consumption. This option is available
2065 only on R8000 and cnMIPS processors. Note that you will need a
2066 suitable Linux distribution to support this.
2067
2068 config PAGE_SIZE_16KB
2069 bool "16kB"
2070 depends on !CPU_R3000 && !CPU_TX39XX
2071 help
2072 Using 16kB page size will result in higher performance kernel at
2073 the price of higher memory consumption. This option is available on
2074 all non-R3000 family processors. Note that you will need a suitable
2075 Linux distribution to support this.
2076
2077 config PAGE_SIZE_32KB
2078 bool "32kB"
2079 depends on CPU_CAVIUM_OCTEON
2080 help
2081 Using 32kB page size will result in higher performance kernel at
2082 the price of higher memory consumption. This option is available
2083 only on cnMIPS cores. Note that you will need a suitable Linux
2084 distribution to support this.
2085
2086 config PAGE_SIZE_64KB
2087 bool "64kB"
2088 depends on !CPU_R3000 && !CPU_TX39XX && !CPU_R6000
2089 help
2090 Using 64kB page size will result in higher performance kernel at
2091 the price of higher memory consumption. This option is available on
2092 all non-R3000 family processor. Not that at the time of this
2093 writing this option is still high experimental.
2094
2095 endchoice
2096
2097 config FORCE_MAX_ZONEORDER
2098 int "Maximum zone order"
2099 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2100 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2101 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2102 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2103 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2104 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2105 range 11 64
2106 default "11"
2107 help
2108 The kernel memory allocator divides physically contiguous memory
2109 blocks into "zones", where each zone is a power of two number of
2110 pages. This option selects the largest power of two that the kernel
2111 keeps in the memory allocator. If you need to allocate very large
2112 blocks of physically contiguous memory, then you may need to
2113 increase this value.
2114
2115 This config option is actually maximum order plus one. For example,
2116 a value of 11 means that the largest free memory block is 2^10 pages.
2117
2118 The page size is not necessarily 4KB. Keep this in mind
2119 when choosing a value for this option.
2120
2121 config BOARD_SCACHE
2122 bool
2123
2124 config IP22_CPU_SCACHE
2125 bool
2126 select BOARD_SCACHE
2127
2128 #
2129 # Support for a MIPS32 / MIPS64 style S-caches
2130 #
2131 config MIPS_CPU_SCACHE
2132 bool
2133 select BOARD_SCACHE
2134
2135 config R5000_CPU_SCACHE
2136 bool
2137 select BOARD_SCACHE
2138
2139 config RM7000_CPU_SCACHE
2140 bool
2141 select BOARD_SCACHE
2142
2143 config SIBYTE_DMA_PAGEOPS
2144 bool "Use DMA to clear/copy pages"
2145 depends on CPU_SB1
2146 help
2147 Instead of using the CPU to zero and copy pages, use a Data Mover
2148 channel. These DMA channels are otherwise unused by the standard
2149 SiByte Linux port. Seems to give a small performance benefit.
2150
2151 config CPU_HAS_PREFETCH
2152 bool
2153
2154 config CPU_GENERIC_DUMP_TLB
2155 bool
2156 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
2157
2158 config CPU_R4K_FPU
2159 bool
2160 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2161
2162 config CPU_R4K_CACHE_TLB
2163 bool
2164 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2165
2166 config MIPS_MT_SMP
2167 bool "MIPS MT SMP support (1 TC on each available VPE)"
2168 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6
2169 select CPU_MIPSR2_IRQ_VI
2170 select CPU_MIPSR2_IRQ_EI
2171 select SYNC_R4K
2172 select MIPS_GIC_IPI if MIPS_GIC
2173 select MIPS_MT
2174 select SMP
2175 select SMP_UP
2176 select SYS_SUPPORTS_SMP
2177 select SYS_SUPPORTS_SCHED_SMT
2178 select MIPS_PERF_SHARED_TC_COUNTERS
2179 help
2180 This is a kernel model which is known as SMVP. This is supported
2181 on cores with the MT ASE and uses the available VPEs to implement
2182 virtual processors which supports SMP. This is equivalent to the
2183 Intel Hyperthreading feature. For further information go to
2184 <http://www.imgtec.com/mips/mips-multithreading.asp>.
2185
2186 config MIPS_MT
2187 bool
2188
2189 config SCHED_SMT
2190 bool "SMT (multithreading) scheduler support"
2191 depends on SYS_SUPPORTS_SCHED_SMT
2192 default n
2193 help
2194 SMT scheduler support improves the CPU scheduler's decision making
2195 when dealing with MIPS MT enabled cores at a cost of slightly
2196 increased overhead in some places. If unsure say N here.
2197
2198 config SYS_SUPPORTS_SCHED_SMT
2199 bool
2200
2201 config SYS_SUPPORTS_MULTITHREADING
2202 bool
2203
2204 config MIPS_MT_FPAFF
2205 bool "Dynamic FPU affinity for FP-intensive threads"
2206 default y
2207 depends on MIPS_MT_SMP
2208
2209 config MIPSR2_TO_R6_EMULATOR
2210 bool "MIPS R2-to-R6 emulator"
2211 depends on CPU_MIPSR6 && !SMP
2212 default y
2213 help
2214 Choose this option if you want to run non-R6 MIPS userland code.
2215 Even if you say 'Y' here, the emulator will still be disabled by
2216 default. You can enable it using the 'mipsr2emu' kernel option.
2217 The only reason this is a build-time option is to save ~14K from the
2218 final kernel image.
2219 comment "MIPS R2-to-R6 emulator is only available for UP kernels"
2220 depends on SMP && CPU_MIPSR6
2221
2222 config MIPS_VPE_LOADER
2223 bool "VPE loader support."
2224 depends on SYS_SUPPORTS_MULTITHREADING && MODULES
2225 select CPU_MIPSR2_IRQ_VI
2226 select CPU_MIPSR2_IRQ_EI
2227 select MIPS_MT
2228 help
2229 Includes a loader for loading an elf relocatable object
2230 onto another VPE and running it.
2231
2232 config MIPS_VPE_LOADER_CMP
2233 bool
2234 default "y"
2235 depends on MIPS_VPE_LOADER && MIPS_CMP
2236
2237 config MIPS_VPE_LOADER_MT
2238 bool
2239 default "y"
2240 depends on MIPS_VPE_LOADER && !MIPS_CMP
2241
2242 config MIPS_VPE_LOADER_TOM
2243 bool "Load VPE program into memory hidden from linux"
2244 depends on MIPS_VPE_LOADER
2245 default y
2246 help
2247 The loader can use memory that is present but has been hidden from
2248 Linux using the kernel command line option "mem=xxMB". It's up to
2249 you to ensure the amount you put in the option and the space your
2250 program requires is less or equal to the amount physically present.
2251
2252 config MIPS_VPE_APSP_API
2253 bool "Enable support for AP/SP API (RTLX)"
2254 depends on MIPS_VPE_LOADER
2255 help
2256
2257 config MIPS_VPE_APSP_API_CMP
2258 bool
2259 default "y"
2260 depends on MIPS_VPE_APSP_API && MIPS_CMP
2261
2262 config MIPS_VPE_APSP_API_MT
2263 bool
2264 default "y"
2265 depends on MIPS_VPE_APSP_API && !MIPS_CMP
2266
2267 config MIPS_CMP
2268 bool "MIPS CMP framework support (DEPRECATED)"
2269 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2270 select MIPS_GIC_IPI if MIPS_GIC
2271 select SMP
2272 select SYNC_R4K
2273 select SYS_SUPPORTS_SMP
2274 select WEAK_ORDERING
2275 default n
2276 help
2277 Select this if you are using a bootloader which implements the "CMP
2278 framework" protocol (ie. YAMON) and want your kernel to make use of
2279 its ability to start secondary CPUs.
2280
2281 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2282 instead of this.
2283
2284 config MIPS_CPS
2285 bool "MIPS Coherent Processing System support"
2286 depends on SYS_SUPPORTS_MIPS_CPS && !CPU_MIPSR6
2287 select MIPS_CM
2288 select MIPS_CPC
2289 select MIPS_CPS_PM if HOTPLUG_CPU
2290 select MIPS_GIC_IPI if MIPS_GIC
2291 select SMP
2292 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2293 select SYS_SUPPORTS_HOTPLUG_CPU
2294 select SYS_SUPPORTS_SMP
2295 select WEAK_ORDERING
2296 help
2297 Select this if you wish to run an SMP kernel across multiple cores
2298 within a MIPS Coherent Processing System. When this option is
2299 enabled the kernel will probe for other cores and boot them with
2300 no external assistance. It is safe to enable this when hardware
2301 support is unavailable.
2302
2303 config MIPS_CPS_PM
2304 depends on MIPS_CPS
2305 select MIPS_CPC
2306 bool
2307
2308 config MIPS_GIC_IPI
2309 depends on MIPS_GIC
2310 bool
2311
2312 config MIPS_CM
2313 bool
2314
2315 config MIPS_CPC
2316 bool
2317
2318 config SB1_PASS_2_WORKAROUNDS
2319 bool
2320 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2321 default y
2322
2323 config SB1_PASS_2_1_WORKAROUNDS
2324 bool
2325 depends on CPU_SB1 && CPU_SB1_PASS_2
2326 default y
2327
2328
2329 config ARCH_PHYS_ADDR_T_64BIT
2330 bool
2331
2332 choice
2333 prompt "SmartMIPS or microMIPS ASE support"
2334
2335 config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2336 bool "None"
2337 help
2338 Select this if you want neither microMIPS nor SmartMIPS support
2339
2340 config CPU_HAS_SMARTMIPS
2341 depends on SYS_SUPPORTS_SMARTMIPS
2342 bool "SmartMIPS"
2343 help
2344 SmartMIPS is a extension of the MIPS32 architecture aimed at
2345 increased security at both hardware and software level for
2346 smartcards. Enabling this option will allow proper use of the
2347 SmartMIPS instructions by Linux applications. However a kernel with
2348 this option will not work on a MIPS core without SmartMIPS core. If
2349 you don't know you probably don't have SmartMIPS and should say N
2350 here.
2351
2352 config CPU_MICROMIPS
2353 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2354 bool "microMIPS"
2355 help
2356 When this option is enabled the kernel will be built using the
2357 microMIPS ISA
2358
2359 endchoice
2360
2361 config CPU_HAS_MSA
2362 bool "Support for the MIPS SIMD Architecture"
2363 depends on CPU_SUPPORTS_MSA
2364 depends on 64BIT || MIPS_O32_FP64_SUPPORT
2365 help
2366 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2367 and a set of SIMD instructions to operate on them. When this option
2368 is enabled the kernel will support allocating & switching MSA
2369 vector register contexts. If you know that your kernel will only be
2370 running on CPUs which do not support MSA or that your userland will
2371 not be making use of it then you may wish to say N here to reduce
2372 the size & complexity of your kernel.
2373
2374 If unsure, say Y.
2375
2376 config CPU_HAS_WB
2377 bool
2378
2379 config XKS01
2380 bool
2381
2382 #
2383 # Vectored interrupt mode is an R2 feature
2384 #
2385 config CPU_MIPSR2_IRQ_VI
2386 bool
2387
2388 #
2389 # Extended interrupt mode is an R2 feature
2390 #
2391 config CPU_MIPSR2_IRQ_EI
2392 bool
2393
2394 config CPU_HAS_SYNC
2395 bool
2396 depends on !CPU_R3000
2397 default y
2398
2399 #
2400 # CPU non-features
2401 #
2402 config CPU_DADDI_WORKAROUNDS
2403 bool
2404
2405 config CPU_R4000_WORKAROUNDS
2406 bool
2407 select CPU_R4400_WORKAROUNDS
2408
2409 config CPU_R4400_WORKAROUNDS
2410 bool
2411
2412 #
2413 # - Highmem only makes sense for the 32-bit kernel.
2414 # - The current highmem code will only work properly on physically indexed
2415 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2416 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2417 # moment we protect the user and offer the highmem option only on machines
2418 # where it's known to be safe. This will not offer highmem on a few systems
2419 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2420 # indexed CPUs but we're playing safe.
2421 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2422 # know they might have memory configurations that could make use of highmem
2423 # support.
2424 #
2425 config HIGHMEM
2426 bool "High Memory Support"
2427 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2428
2429 config CPU_SUPPORTS_HIGHMEM
2430 bool
2431
2432 config SYS_SUPPORTS_HIGHMEM
2433 bool
2434
2435 config SYS_SUPPORTS_SMARTMIPS
2436 bool
2437
2438 config SYS_SUPPORTS_MICROMIPS
2439 bool
2440
2441 config SYS_SUPPORTS_MIPS16
2442 bool
2443 help
2444 This option must be set if a kernel might be executed on a MIPS16-
2445 enabled CPU even if MIPS16 is not actually being used. In other
2446 words, it makes the kernel MIPS16-tolerant.
2447
2448 config CPU_SUPPORTS_MSA
2449 bool
2450
2451 config ARCH_FLATMEM_ENABLE
2452 def_bool y
2453 depends on !NUMA && !CPU_LOONGSON2
2454
2455 config ARCH_DISCONTIGMEM_ENABLE
2456 bool
2457 default y if SGI_IP27
2458 help
2459 Say Y to support efficient handling of discontiguous physical memory,
2460 for architectures which are either NUMA (Non-Uniform Memory Access)
2461 or have huge holes in the physical address space for other reasons.
2462 See <file:Documentation/vm/numa> for more.
2463
2464 config ARCH_SPARSEMEM_ENABLE
2465 bool
2466 select SPARSEMEM_STATIC
2467
2468 config NUMA
2469 bool "NUMA Support"
2470 depends on SYS_SUPPORTS_NUMA
2471 help
2472 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2473 Access). This option improves performance on systems with more
2474 than two nodes; on two node systems it is generally better to
2475 leave it disabled; on single node systems disable this option
2476 disabled.
2477
2478 config SYS_SUPPORTS_NUMA
2479 bool
2480
2481 config NODES_SHIFT
2482 int
2483 default "6"
2484 depends on NEED_MULTIPLE_NODES
2485
2486 config HW_PERF_EVENTS
2487 bool "Enable hardware performance counter support for perf events"
2488 depends on PERF_EVENTS && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2489 default y
2490 help
2491 Enable hardware performance counter support for perf events. If
2492 disabled, perf events will use software events only.
2493
2494 source "mm/Kconfig"
2495
2496 config SMP
2497 bool "Multi-Processing support"
2498 depends on SYS_SUPPORTS_SMP
2499 help
2500 This enables support for systems with more than one CPU. If you have
2501 a system with only one CPU, say N. If you have a system with more
2502 than one CPU, say Y.
2503
2504 If you say N here, the kernel will run on uni- and multiprocessor
2505 machines, but will use only one CPU of a multiprocessor machine. If
2506 you say Y here, the kernel will run on many, but not all,
2507 uniprocessor machines. On a uniprocessor machine, the kernel
2508 will run faster if you say N here.
2509
2510 People using multiprocessor machines who say Y here should also say
2511 Y to "Enhanced Real Time Clock Support", below.
2512
2513 See also the SMP-HOWTO available at
2514 <http://www.tldp.org/docs.html#howto>.
2515
2516 If you don't know what to do here, say N.
2517
2518 config SMP_UP
2519 bool
2520
2521 config SYS_SUPPORTS_MIPS_CMP
2522 bool
2523
2524 config SYS_SUPPORTS_MIPS_CPS
2525 bool
2526
2527 config SYS_SUPPORTS_SMP
2528 bool
2529
2530 config NR_CPUS_DEFAULT_4
2531 bool
2532
2533 config NR_CPUS_DEFAULT_8
2534 bool
2535
2536 config NR_CPUS_DEFAULT_16
2537 bool
2538
2539 config NR_CPUS_DEFAULT_32
2540 bool
2541
2542 config NR_CPUS_DEFAULT_64
2543 bool
2544
2545 config NR_CPUS
2546 int "Maximum number of CPUs (2-256)"
2547 range 2 256
2548 depends on SMP
2549 default "4" if NR_CPUS_DEFAULT_4
2550 default "8" if NR_CPUS_DEFAULT_8
2551 default "16" if NR_CPUS_DEFAULT_16
2552 default "32" if NR_CPUS_DEFAULT_32
2553 default "64" if NR_CPUS_DEFAULT_64
2554 help
2555 This allows you to specify the maximum number of CPUs which this
2556 kernel will support. The maximum supported value is 32 for 32-bit
2557 kernel and 64 for 64-bit kernels; the minimum value which makes
2558 sense is 1 for Qemu (useful only for kernel debugging purposes)
2559 and 2 for all others.
2560
2561 This is purely to save memory - each supported CPU adds
2562 approximately eight kilobytes to the kernel image. For best
2563 performance should round up your number of processors to the next
2564 power of two.
2565
2566 config MIPS_PERF_SHARED_TC_COUNTERS
2567 bool
2568
2569 #
2570 # Timer Interrupt Frequency Configuration
2571 #
2572
2573 choice
2574 prompt "Timer frequency"
2575 default HZ_250
2576 help
2577 Allows the configuration of the timer frequency.
2578
2579 config HZ_24
2580 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2581
2582 config HZ_48
2583 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2584
2585 config HZ_100
2586 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2587
2588 config HZ_128
2589 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2590
2591 config HZ_250
2592 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2593
2594 config HZ_256
2595 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2596
2597 config HZ_1000
2598 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2599
2600 config HZ_1024
2601 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2602
2603 endchoice
2604
2605 config SYS_SUPPORTS_24HZ
2606 bool
2607
2608 config SYS_SUPPORTS_48HZ
2609 bool
2610
2611 config SYS_SUPPORTS_100HZ
2612 bool
2613
2614 config SYS_SUPPORTS_128HZ
2615 bool
2616
2617 config SYS_SUPPORTS_250HZ
2618 bool
2619
2620 config SYS_SUPPORTS_256HZ
2621 bool
2622
2623 config SYS_SUPPORTS_1000HZ
2624 bool
2625
2626 config SYS_SUPPORTS_1024HZ
2627 bool
2628
2629 config SYS_SUPPORTS_ARBIT_HZ
2630 bool
2631 default y if !SYS_SUPPORTS_24HZ && \
2632 !SYS_SUPPORTS_48HZ && \
2633 !SYS_SUPPORTS_100HZ && \
2634 !SYS_SUPPORTS_128HZ && \
2635 !SYS_SUPPORTS_250HZ && \
2636 !SYS_SUPPORTS_256HZ && \
2637 !SYS_SUPPORTS_1000HZ && \
2638 !SYS_SUPPORTS_1024HZ
2639
2640 config HZ
2641 int
2642 default 24 if HZ_24
2643 default 48 if HZ_48
2644 default 100 if HZ_100
2645 default 128 if HZ_128
2646 default 250 if HZ_250
2647 default 256 if HZ_256
2648 default 1000 if HZ_1000
2649 default 1024 if HZ_1024
2650
2651 config SCHED_HRTICK
2652 def_bool HIGH_RES_TIMERS
2653
2654 source "kernel/Kconfig.preempt"
2655
2656 config KEXEC
2657 bool "Kexec system call"
2658 select KEXEC_CORE
2659 help
2660 kexec is a system call that implements the ability to shutdown your
2661 current kernel, and to start another kernel. It is like a reboot
2662 but it is independent of the system firmware. And like a reboot
2663 you can start any kernel with it, not just Linux.
2664
2665 The name comes from the similarity to the exec system call.
2666
2667 It is an ongoing process to be certain the hardware in a machine
2668 is properly shutdown, so do not be surprised if this code does not
2669 initially work for you. As of this writing the exact hardware
2670 interface is strongly in flux, so no good recommendation can be
2671 made.
2672
2673 config CRASH_DUMP
2674 bool "Kernel crash dumps"
2675 help
2676 Generate crash dump after being started by kexec.
2677 This should be normally only set in special crash dump kernels
2678 which are loaded in the main kernel with kexec-tools into
2679 a specially reserved region and then later executed after
2680 a crash by kdump/kexec. The crash dump kernel must be compiled
2681 to a memory address not used by the main kernel or firmware using
2682 PHYSICAL_START.
2683
2684 config PHYSICAL_START
2685 hex "Physical address where the kernel is loaded"
2686 default "0xffffffff84000000" if 64BIT
2687 default "0x84000000" if 32BIT
2688 depends on CRASH_DUMP
2689 help
2690 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2691 If you plan to use kernel for capturing the crash dump change
2692 this value to start of the reserved region (the "X" value as
2693 specified in the "crashkernel=YM@XM" command line boot parameter
2694 passed to the panic-ed kernel).
2695
2696 config SECCOMP
2697 bool "Enable seccomp to safely compute untrusted bytecode"
2698 depends on PROC_FS
2699 default y
2700 help
2701 This kernel feature is useful for number crunching applications
2702 that may need to compute untrusted bytecode during their
2703 execution. By using pipes or other transports made available to
2704 the process as file descriptors supporting the read/write
2705 syscalls, it's possible to isolate those applications in
2706 their own address space using seccomp. Once seccomp is
2707 enabled via /proc/<pid>/seccomp, it cannot be disabled
2708 and the task is only allowed to execute a few safe syscalls
2709 defined by each seccomp mode.
2710
2711 If unsure, say Y. Only embedded should say N here.
2712
2713 config MIPS_O32_FP64_SUPPORT
2714 bool "Support for O32 binaries using 64-bit FP"
2715 depends on 32BIT || MIPS32_O32
2716 help
2717 When this is enabled, the kernel will support use of 64-bit floating
2718 point registers with binaries using the O32 ABI along with the
2719 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2720 32-bit MIPS systems this support is at the cost of increasing the
2721 size and complexity of the compiled FPU emulator. Thus if you are
2722 running a MIPS32 system and know that none of your userland binaries
2723 will require 64-bit floating point, you may wish to reduce the size
2724 of your kernel & potentially improve FP emulation performance by
2725 saying N here.
2726
2727 Although binutils currently supports use of this flag the details
2728 concerning its effect upon the O32 ABI in userland are still being
2729 worked on. In order to avoid userland becoming dependant upon current
2730 behaviour before the details have been finalised, this option should
2731 be considered experimental and only enabled by those working upon
2732 said details.
2733
2734 If unsure, say N.
2735
2736 config USE_OF
2737 bool
2738 select OF
2739 select OF_EARLY_FLATTREE
2740 select IRQ_DOMAIN
2741
2742 config BUILTIN_DTB
2743 bool
2744
2745 choice
2746 prompt "Kernel appended dtb support" if USE_OF
2747 default MIPS_NO_APPENDED_DTB
2748
2749 config MIPS_NO_APPENDED_DTB
2750 bool "None"
2751 help
2752 Do not enable appended dtb support.
2753
2754 config MIPS_ELF_APPENDED_DTB
2755 bool "vmlinux"
2756 help
2757 With this option, the boot code will look for a device tree binary
2758 DTB) included in the vmlinux ELF section .appended_dtb. By default
2759 it is empty and the DTB can be appended using binutils command
2760 objcopy:
2761
2762 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
2763
2764 This is meant as a backward compatiblity convenience for those
2765 systems with a bootloader that can't be upgraded to accommodate
2766 the documented boot protocol using a device tree.
2767
2768 config MIPS_RAW_APPENDED_DTB
2769 bool "vmlinux.bin"
2770 help
2771 With this option, the boot code will look for a device tree binary
2772 DTB) appended to raw vmlinux.bin (without decompressor).
2773 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
2774
2775 This is meant as a backward compatibility convenience for those
2776 systems with a bootloader that can't be upgraded to accommodate
2777 the documented boot protocol using a device tree.
2778
2779 Beware that there is very little in terms of protection against
2780 this option being confused by leftover garbage in memory that might
2781 look like a DTB header after a reboot if no actual DTB is appended
2782 to vmlinux.bin. Do not leave this option active in a production kernel
2783 if you don't intend to always append a DTB.
2784
2785 config MIPS_ZBOOT_APPENDED_DTB
2786 bool "vmlinuz.bin"
2787 depends on SYS_SUPPORTS_ZBOOT
2788 help
2789 With this option, the boot code will look for a device tree binary
2790 DTB) appended to raw vmlinuz.bin (with decompressor).
2791 (e.g. cat vmlinuz.bin <filename>.dtb > vmlinuz_w_dtb).
2792
2793 This is meant as a backward compatibility convenience for those
2794 systems with a bootloader that can't be upgraded to accommodate
2795 the documented boot protocol using a device tree.
2796
2797 Beware that there is very little in terms of protection against
2798 this option being confused by leftover garbage in memory that might
2799 look like a DTB header after a reboot if no actual DTB is appended
2800 to vmlinuz.bin. Do not leave this option active in a production kernel
2801 if you don't intend to always append a DTB.
2802 endchoice
2803
2804 choice
2805 prompt "Kernel command line type" if !CMDLINE_OVERRIDE
2806 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
2807 !MIPS_MALTA && !MIPS_SEAD3 && \
2808 !CAVIUM_OCTEON_SOC
2809 default MIPS_CMDLINE_FROM_BOOTLOADER
2810
2811 config MIPS_CMDLINE_FROM_DTB
2812 depends on USE_OF
2813 bool "Dtb kernel arguments if available"
2814
2815 config MIPS_CMDLINE_DTB_EXTEND
2816 depends on USE_OF
2817 bool "Extend dtb kernel arguments with bootloader arguments"
2818
2819 config MIPS_CMDLINE_FROM_BOOTLOADER
2820 bool "Bootloader kernel arguments if available"
2821 endchoice
2822
2823 endmenu
2824
2825 config LOCKDEP_SUPPORT
2826 bool
2827 default y
2828
2829 config STACKTRACE_SUPPORT
2830 bool
2831 default y
2832
2833 config HAVE_LATENCYTOP_SUPPORT
2834 bool
2835 default y
2836
2837 config PGTABLE_LEVELS
2838 int
2839 default 3 if 64BIT && !PAGE_SIZE_64KB
2840 default 2
2841
2842 source "init/Kconfig"
2843
2844 source "kernel/Kconfig.freezer"
2845
2846 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2847
2848 config HW_HAS_EISA
2849 bool
2850 config HW_HAS_PCI
2851 bool
2852
2853 config PCI
2854 bool "Support for PCI controller"
2855 depends on HW_HAS_PCI
2856 select PCI_DOMAINS
2857 select NO_GENERIC_PCI_IOPORT_MAP
2858 help
2859 Find out whether you have a PCI motherboard. PCI is the name of a
2860 bus system, i.e. the way the CPU talks to the other stuff inside
2861 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2862 say Y, otherwise N.
2863
2864 config HT_PCI
2865 bool "Support for HT-linked PCI"
2866 default y
2867 depends on CPU_LOONGSON3
2868 select PCI
2869 select PCI_DOMAINS
2870 help
2871 Loongson family machines use Hyper-Transport bus for inter-core
2872 connection and device connection. The PCI bus is a subordinate
2873 linked at HT. Choose Y for Loongson-3 based machines.
2874
2875 config PCI_DOMAINS
2876 bool
2877
2878 source "drivers/pci/Kconfig"
2879
2880 source "drivers/pci/pcie/Kconfig"
2881
2882 #
2883 # ISA support is now enabled via select. Too many systems still have the one
2884 # or other ISA chip on the board that users don't know about so don't expect
2885 # users to choose the right thing ...
2886 #
2887 config ISA
2888 bool
2889
2890 config EISA
2891 bool "EISA support"
2892 depends on HW_HAS_EISA
2893 select ISA
2894 select GENERIC_ISA_DMA
2895 ---help---
2896 The Extended Industry Standard Architecture (EISA) bus was
2897 developed as an open alternative to the IBM MicroChannel bus.
2898
2899 The EISA bus provided some of the features of the IBM MicroChannel
2900 bus while maintaining backward compatibility with cards made for
2901 the older ISA bus. The EISA bus saw limited use between 1988 and
2902 1995 when it was made obsolete by the PCI bus.
2903
2904 Say Y here if you are building a kernel for an EISA-based machine.
2905
2906 Otherwise, say N.
2907
2908 source "drivers/eisa/Kconfig"
2909
2910 config TC
2911 bool "TURBOchannel support"
2912 depends on MACH_DECSTATION
2913 help
2914 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2915 processors. TURBOchannel programming specifications are available
2916 at:
2917 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2918 and:
2919 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2920 Linux driver support status is documented at:
2921 <http://www.linux-mips.org/wiki/DECstation>
2922
2923 config MMU
2924 bool
2925 default y
2926
2927 config I8253
2928 bool
2929 select CLKSRC_I8253
2930 select CLKEVT_I8253
2931 select MIPS_EXTERNAL_TIMER
2932
2933 config ZONE_DMA
2934 bool
2935
2936 config ZONE_DMA32
2937 bool
2938
2939 source "drivers/pcmcia/Kconfig"
2940
2941 source "drivers/pci/hotplug/Kconfig"
2942
2943 config RAPIDIO
2944 tristate "RapidIO support"
2945 depends on PCI
2946 default n
2947 help
2948 If you say Y here, the kernel will include drivers and
2949 infrastructure code to support RapidIO interconnect devices.
2950
2951 source "drivers/rapidio/Kconfig"
2952
2953 endmenu
2954
2955 menu "Executable file formats"
2956
2957 source "fs/Kconfig.binfmt"
2958
2959 config TRAD_SIGNALS
2960 bool
2961
2962 config MIPS32_COMPAT
2963 bool
2964
2965 config COMPAT
2966 bool
2967
2968 config SYSVIPC_COMPAT
2969 bool
2970
2971 config MIPS32_O32
2972 bool "Kernel support for o32 binaries"
2973 depends on 64BIT
2974 select ARCH_WANT_OLD_COMPAT_IPC
2975 select COMPAT
2976 select MIPS32_COMPAT
2977 select SYSVIPC_COMPAT if SYSVIPC
2978 help
2979 Select this option if you want to run o32 binaries. These are pure
2980 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2981 existing binaries are in this format.
2982
2983 If unsure, say Y.
2984
2985 config MIPS32_N32
2986 bool "Kernel support for n32 binaries"
2987 depends on 64BIT
2988 select COMPAT
2989 select MIPS32_COMPAT
2990 select SYSVIPC_COMPAT if SYSVIPC
2991 help
2992 Select this option if you want to run n32 binaries. These are
2993 64-bit binaries using 32-bit quantities for addressing and certain
2994 data that would normally be 64-bit. They are used in special
2995 cases.
2996
2997 If unsure, say N.
2998
2999 config BINFMT_ELF32
3000 bool
3001 default y if MIPS32_O32 || MIPS32_N32
3002
3003 endmenu
3004
3005 menu "Power management options"
3006
3007 config ARCH_HIBERNATION_POSSIBLE
3008 def_bool y
3009 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3010
3011 config ARCH_SUSPEND_POSSIBLE
3012 def_bool y
3013 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3014
3015 source "kernel/power/Kconfig"
3016
3017 endmenu
3018
3019 config MIPS_EXTERNAL_TIMER
3020 bool
3021
3022 menu "CPU Power Management"
3023
3024 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3025 source "drivers/cpufreq/Kconfig"
3026 endif
3027
3028 source "drivers/cpuidle/Kconfig"
3029
3030 endmenu
3031
3032 source "net/Kconfig"
3033
3034 source "drivers/Kconfig"
3035
3036 source "drivers/firmware/Kconfig"
3037
3038 source "fs/Kconfig"
3039
3040 source "arch/mips/Kconfig.debug"
3041
3042 source "security/Kconfig"
3043
3044 source "crypto/Kconfig"
3045
3046 source "lib/Kconfig"
3047
3048 source "arch/mips/kvm/Kconfig"
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