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MIPS: Select CONFIG_HANDLE_DOMAIN_IRQ and make it work.
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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 select HANDLE_DOMAIN_IRQ
66
67 menu "Machine selection"
68
69 choice
70 prompt "System type"
71 default SGI_IP22
72
73 config MIPS_ALCHEMY
74 bool "Alchemy processor based machines"
75 select ARCH_PHYS_ADDR_T_64BIT
76 select CEVT_R4K
77 select CSRC_R4K
78 select IRQ_MIPS_CPU
79 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is
80 select SYS_HAS_CPU_MIPS32_R1
81 select SYS_SUPPORTS_32BIT_KERNEL
82 select SYS_SUPPORTS_APM_EMULATION
83 select ARCH_REQUIRE_GPIOLIB
84 select SYS_SUPPORTS_ZBOOT
85 select COMMON_CLK
86
87 config AR7
88 bool "Texas Instruments AR7"
89 select BOOT_ELF32
90 select DMA_NONCOHERENT
91 select CEVT_R4K
92 select CSRC_R4K
93 select IRQ_MIPS_CPU
94 select NO_EXCEPT_FILL
95 select SWAP_IO_SPACE
96 select SYS_HAS_CPU_MIPS32_R1
97 select SYS_HAS_EARLY_PRINTK
98 select SYS_SUPPORTS_32BIT_KERNEL
99 select SYS_SUPPORTS_LITTLE_ENDIAN
100 select SYS_SUPPORTS_MIPS16
101 select SYS_SUPPORTS_ZBOOT_UART16550
102 select ARCH_REQUIRE_GPIOLIB
103 select VLYNQ
104 select HAVE_CLK
105 help
106 Support for the Texas Instruments AR7 System-on-a-Chip
107 family: TNETD7100, 7200 and 7300.
108
109 config ATH25
110 bool "Atheros AR231x/AR531x SoC support"
111 select CEVT_R4K
112 select CSRC_R4K
113 select DMA_NONCOHERENT
114 select IRQ_MIPS_CPU
115 select IRQ_DOMAIN
116 select SYS_HAS_CPU_MIPS32_R1
117 select SYS_SUPPORTS_BIG_ENDIAN
118 select SYS_SUPPORTS_32BIT_KERNEL
119 select SYS_HAS_EARLY_PRINTK
120 help
121 Support for Atheros AR231x and Atheros AR531x based boards
122
123 config ATH79
124 bool "Atheros AR71XX/AR724X/AR913X based boards"
125 select ARCH_HAS_RESET_CONTROLLER
126 select ARCH_REQUIRE_GPIOLIB
127 select BOOT_RAW
128 select CEVT_R4K
129 select CSRC_R4K
130 select DMA_NONCOHERENT
131 select HAVE_CLK
132 select COMMON_CLK
133 select CLKDEV_LOOKUP
134 select IRQ_MIPS_CPU
135 select MIPS_MACHINE
136 select SYS_HAS_CPU_MIPS32_R2
137 select SYS_HAS_EARLY_PRINTK
138 select SYS_SUPPORTS_32BIT_KERNEL
139 select SYS_SUPPORTS_BIG_ENDIAN
140 select SYS_SUPPORTS_MIPS16
141 select SYS_SUPPORTS_ZBOOT_UART_PROM
142 select USE_OF
143 help
144 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
145
146 config BMIPS_GENERIC
147 bool "Broadcom Generic BMIPS kernel"
148 select BOOT_RAW
149 select NO_EXCEPT_FILL
150 select USE_OF
151 select CEVT_R4K
152 select CSRC_R4K
153 select SYNC_R4K
154 select COMMON_CLK
155 select BCM6345_L1_IRQ
156 select BCM7038_L1_IRQ
157 select BCM7120_L2_IRQ
158 select BRCMSTB_L2_IRQ
159 select IRQ_MIPS_CPU
160 select DMA_NONCOHERENT
161 select SYS_SUPPORTS_32BIT_KERNEL
162 select SYS_SUPPORTS_LITTLE_ENDIAN
163 select SYS_SUPPORTS_BIG_ENDIAN
164 select SYS_SUPPORTS_HIGHMEM
165 select SYS_HAS_CPU_BMIPS32_3300
166 select SYS_HAS_CPU_BMIPS4350
167 select SYS_HAS_CPU_BMIPS4380
168 select SYS_HAS_CPU_BMIPS5000
169 select SWAP_IO_SPACE
170 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
171 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
172 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
173 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
174 select ARCH_WANT_OPTIONAL_GPIOLIB
175 help
176 Build a generic DT-based kernel image that boots on select
177 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
178 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
179 must be set appropriately for your board.
180
181 config BCM47XX
182 bool "Broadcom BCM47XX based boards"
183 select ARCH_WANT_OPTIONAL_GPIOLIB
184 select BOOT_RAW
185 select CEVT_R4K
186 select CSRC_R4K
187 select DMA_NONCOHERENT
188 select HW_HAS_PCI
189 select IRQ_MIPS_CPU
190 select SYS_HAS_CPU_MIPS32_R1
191 select NO_EXCEPT_FILL
192 select SYS_SUPPORTS_32BIT_KERNEL
193 select SYS_SUPPORTS_LITTLE_ENDIAN
194 select SYS_SUPPORTS_MIPS16
195 select SYS_HAS_EARLY_PRINTK
196 select USE_GENERIC_EARLY_PRINTK_8250
197 select GPIOLIB
198 select LEDS_GPIO_REGISTER
199 select BCM47XX_NVRAM
200 help
201 Support for BCM47XX based boards
202
203 config BCM63XX
204 bool "Broadcom BCM63XX based boards"
205 select BOOT_RAW
206 select CEVT_R4K
207 select CSRC_R4K
208 select SYNC_R4K
209 select DMA_NONCOHERENT
210 select IRQ_MIPS_CPU
211 select SYS_SUPPORTS_32BIT_KERNEL
212 select SYS_SUPPORTS_BIG_ENDIAN
213 select SYS_HAS_EARLY_PRINTK
214 select SWAP_IO_SPACE
215 select ARCH_REQUIRE_GPIOLIB
216 select HAVE_CLK
217 select MIPS_L1_CACHE_SHIFT_4
218 help
219 Support for BCM63XX based boards
220
221 config MIPS_COBALT
222 bool "Cobalt Server"
223 select CEVT_R4K
224 select CSRC_R4K
225 select CEVT_GT641XX
226 select DMA_NONCOHERENT
227 select HW_HAS_PCI
228 select I8253
229 select I8259
230 select IRQ_MIPS_CPU
231 select IRQ_GT641XX
232 select PCI_GT64XXX_PCI0
233 select PCI
234 select SYS_HAS_CPU_NEVADA
235 select SYS_HAS_EARLY_PRINTK
236 select SYS_SUPPORTS_32BIT_KERNEL
237 select SYS_SUPPORTS_64BIT_KERNEL
238 select SYS_SUPPORTS_LITTLE_ENDIAN
239 select USE_GENERIC_EARLY_PRINTK_8250
240
241 config MACH_DECSTATION
242 bool "DECstations"
243 select BOOT_ELF32
244 select CEVT_DS1287
245 select CEVT_R4K if CPU_R4X00
246 select CSRC_IOASIC
247 select CSRC_R4K if CPU_R4X00
248 select CPU_DADDI_WORKAROUNDS if 64BIT
249 select CPU_R4000_WORKAROUNDS if 64BIT
250 select CPU_R4400_WORKAROUNDS if 64BIT
251 select DMA_NONCOHERENT
252 select NO_IOPORT_MAP
253 select IRQ_MIPS_CPU
254 select SYS_HAS_CPU_R3000
255 select SYS_HAS_CPU_R4X00
256 select SYS_SUPPORTS_32BIT_KERNEL
257 select SYS_SUPPORTS_64BIT_KERNEL
258 select SYS_SUPPORTS_LITTLE_ENDIAN
259 select SYS_SUPPORTS_128HZ
260 select SYS_SUPPORTS_256HZ
261 select SYS_SUPPORTS_1024HZ
262 select MIPS_L1_CACHE_SHIFT_4
263 help
264 This enables support for DEC's MIPS based workstations. For details
265 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
266 DECstation porting pages on <http://decstation.unix-ag.org/>.
267
268 If you have one of the following DECstation Models you definitely
269 want to choose R4xx0 for the CPU Type:
270
271 DECstation 5000/50
272 DECstation 5000/150
273 DECstation 5000/260
274 DECsystem 5900/260
275
276 otherwise choose R3000.
277
278 config MACH_JAZZ
279 bool "Jazz family of machines"
280 select FW_ARC
281 select FW_ARC32
282 select ARCH_MAY_HAVE_PC_FDC
283 select CEVT_R4K
284 select CSRC_R4K
285 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
286 select GENERIC_ISA_DMA
287 select HAVE_PCSPKR_PLATFORM
288 select IRQ_MIPS_CPU
289 select I8253
290 select I8259
291 select ISA
292 select SYS_HAS_CPU_R4X00
293 select SYS_SUPPORTS_32BIT_KERNEL
294 select SYS_SUPPORTS_64BIT_KERNEL
295 select SYS_SUPPORTS_100HZ
296 help
297 This a family of machines based on the MIPS R4030 chipset which was
298 used by several vendors to build RISC/os and Windows NT workstations.
299 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
300 Olivetti M700-10 workstations.
301
302 config MACH_INGENIC
303 bool "Ingenic SoC based machines"
304 select SYS_SUPPORTS_32BIT_KERNEL
305 select SYS_SUPPORTS_LITTLE_ENDIAN
306 select SYS_SUPPORTS_ZBOOT_UART16550
307 select DMA_NONCOHERENT
308 select IRQ_MIPS_CPU
309 select ARCH_REQUIRE_GPIOLIB
310 select COMMON_CLK
311 select GENERIC_IRQ_CHIP
312 select BUILTIN_DTB
313 select USE_OF
314 select LIBFDT
315
316 config LANTIQ
317 bool "Lantiq based platforms"
318 select DMA_NONCOHERENT
319 select IRQ_MIPS_CPU
320 select CEVT_R4K
321 select CSRC_R4K
322 select SYS_HAS_CPU_MIPS32_R1
323 select SYS_HAS_CPU_MIPS32_R2
324 select SYS_SUPPORTS_BIG_ENDIAN
325 select SYS_SUPPORTS_32BIT_KERNEL
326 select SYS_SUPPORTS_MIPS16
327 select SYS_SUPPORTS_MULTITHREADING
328 select SYS_HAS_EARLY_PRINTK
329 select ARCH_REQUIRE_GPIOLIB
330 select SWAP_IO_SPACE
331 select BOOT_RAW
332 select CLKDEV_LOOKUP
333 select USE_OF
334 select PINCTRL
335 select PINCTRL_LANTIQ
336 select ARCH_HAS_RESET_CONTROLLER
337 select RESET_CONTROLLER
338
339 config LASAT
340 bool "LASAT Networks platforms"
341 select CEVT_R4K
342 select CRC32
343 select CSRC_R4K
344 select DMA_NONCOHERENT
345 select SYS_HAS_EARLY_PRINTK
346 select HW_HAS_PCI
347 select IRQ_MIPS_CPU
348 select PCI_GT64XXX_PCI0
349 select MIPS_NILE4
350 select R5000_CPU_SCACHE
351 select SYS_HAS_CPU_R5000
352 select SYS_SUPPORTS_32BIT_KERNEL
353 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
354 select SYS_SUPPORTS_LITTLE_ENDIAN
355
356 config MACH_LOONGSON32
357 bool "Loongson-1 family of machines"
358 select SYS_SUPPORTS_ZBOOT
359 help
360 This enables support for the Loongson-1 family of machines.
361
362 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
363 the Institute of Computing Technology (ICT), Chinese Academy of
364 Sciences (CAS).
365
366 config MACH_LOONGSON64
367 bool "Loongson-2/3 family of machines"
368 select SYS_SUPPORTS_ZBOOT
369 help
370 This enables the support of Loongson-2/3 family of machines.
371
372 Loongson-2 is a family of single-core CPUs and Loongson-3 is a
373 family of multi-core CPUs. They are both 64-bit general-purpose
374 MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute
375 of Computing Technology (ICT), Chinese Academy of Sciences (CAS)
376 in the People's Republic of China. The chief architect is Professor
377 Weiwu Hu.
378
379 config MACH_PISTACHIO
380 bool "IMG Pistachio SoC based boards"
381 select ARCH_REQUIRE_GPIOLIB
382 select BOOT_ELF32
383 select BOOT_RAW
384 select CEVT_R4K
385 select CLKSRC_MIPS_GIC
386 select COMMON_CLK
387 select CSRC_R4K
388 select DMA_MAYBE_COHERENT
389 select IRQ_MIPS_CPU
390 select LIBFDT
391 select MFD_SYSCON
392 select MIPS_CPU_SCACHE
393 select MIPS_GIC
394 select PINCTRL
395 select REGULATOR
396 select SYS_HAS_CPU_MIPS32_R2
397 select SYS_SUPPORTS_32BIT_KERNEL
398 select SYS_SUPPORTS_LITTLE_ENDIAN
399 select SYS_SUPPORTS_MIPS_CPS
400 select SYS_SUPPORTS_MULTITHREADING
401 select SYS_SUPPORTS_ZBOOT
402 select SYS_HAS_EARLY_PRINTK
403 select USE_GENERIC_EARLY_PRINTK_8250
404 select USE_OF
405 help
406 This enables support for the IMG Pistachio SoC platform.
407
408 config MACH_XILFPGA
409 bool "MIPSfpga Xilinx based boards"
410 select ARCH_REQUIRE_GPIOLIB
411 select BOOT_ELF32
412 select BOOT_RAW
413 select BUILTIN_DTB
414 select CEVT_R4K
415 select COMMON_CLK
416 select CSRC_R4K
417 select IRQ_MIPS_CPU
418 select LIBFDT
419 select MIPS_CPU_SCACHE
420 select SYS_HAS_EARLY_PRINTK
421 select SYS_HAS_CPU_MIPS32_R2
422 select SYS_SUPPORTS_32BIT_KERNEL
423 select SYS_SUPPORTS_LITTLE_ENDIAN
424 select SYS_SUPPORTS_ZBOOT_UART16550
425 select USE_OF
426 select USE_GENERIC_EARLY_PRINTK_8250
427 help
428 This enables support for the IMG University Program MIPSfpga platform.
429
430 config MIPS_MALTA
431 bool "MIPS Malta board"
432 select ARCH_MAY_HAVE_PC_FDC
433 select BOOT_ELF32
434 select BOOT_RAW
435 select BUILTIN_DTB
436 select CEVT_R4K
437 select CSRC_R4K
438 select CLKSRC_MIPS_GIC
439 select COMMON_CLK
440 select DMA_MAYBE_COHERENT
441 select GENERIC_ISA_DMA
442 select HAVE_PCSPKR_PLATFORM
443 select IRQ_MIPS_CPU
444 select MIPS_GIC
445 select HW_HAS_PCI
446 select I8253
447 select I8259
448 select MIPS_BONITO64
449 select MIPS_CPU_SCACHE
450 select MIPS_L1_CACHE_SHIFT_6
451 select PCI_GT64XXX_PCI0
452 select MIPS_MSC
453 select SMP_UP if SMP
454 select SWAP_IO_SPACE
455 select SYS_HAS_CPU_MIPS32_R1
456 select SYS_HAS_CPU_MIPS32_R2
457 select SYS_HAS_CPU_MIPS32_R3_5
458 select SYS_HAS_CPU_MIPS32_R5
459 select SYS_HAS_CPU_MIPS32_R6
460 select SYS_HAS_CPU_MIPS64_R1
461 select SYS_HAS_CPU_MIPS64_R2
462 select SYS_HAS_CPU_MIPS64_R6
463 select SYS_HAS_CPU_NEVADA
464 select SYS_HAS_CPU_RM7000
465 select SYS_SUPPORTS_32BIT_KERNEL
466 select SYS_SUPPORTS_64BIT_KERNEL
467 select SYS_SUPPORTS_BIG_ENDIAN
468 select SYS_SUPPORTS_HIGHMEM
469 select SYS_SUPPORTS_LITTLE_ENDIAN
470 select SYS_SUPPORTS_MICROMIPS
471 select SYS_SUPPORTS_MIPS_CMP
472 select SYS_SUPPORTS_MIPS_CPS
473 select SYS_SUPPORTS_MIPS16
474 select SYS_SUPPORTS_MULTITHREADING
475 select SYS_SUPPORTS_SMARTMIPS
476 select SYS_SUPPORTS_ZBOOT
477 select USE_OF
478 select ZONE_DMA32 if 64BIT
479 select BUILTIN_DTB
480 select LIBFDT
481 help
482 This enables support for the MIPS Technologies Malta evaluation
483 board.
484
485 config MACH_PIC32
486 bool "Microchip PIC32 Family"
487 help
488 This enables support for the Microchip PIC32 family of platforms.
489
490 Microchip PIC32 is a family of general-purpose 32 bit MIPS core
491 microcontrollers.
492
493 config MIPS_SEAD3
494 bool "MIPS SEAD3 board"
495 select BOOT_ELF32
496 select BOOT_RAW
497 select BUILTIN_DTB
498 select CEVT_R4K
499 select CSRC_R4K
500 select CLKSRC_MIPS_GIC
501 select COMMON_CLK
502 select CPU_MIPSR2_IRQ_VI
503 select CPU_MIPSR2_IRQ_EI
504 select DMA_NONCOHERENT
505 select IRQ_MIPS_CPU
506 select MIPS_GIC
507 select LIBFDT
508 select MIPS_MSC
509 select SYS_HAS_CPU_MIPS32_R1
510 select SYS_HAS_CPU_MIPS32_R2
511 select SYS_HAS_CPU_MIPS64_R1
512 select SYS_HAS_EARLY_PRINTK
513 select SYS_SUPPORTS_32BIT_KERNEL
514 select SYS_SUPPORTS_64BIT_KERNEL
515 select SYS_SUPPORTS_BIG_ENDIAN
516 select SYS_SUPPORTS_LITTLE_ENDIAN
517 select SYS_SUPPORTS_SMARTMIPS
518 select SYS_SUPPORTS_MICROMIPS
519 select SYS_SUPPORTS_MIPS16
520 select USB_EHCI_BIG_ENDIAN_DESC
521 select USB_EHCI_BIG_ENDIAN_MMIO
522 select USE_OF
523 help
524 This enables support for the MIPS Technologies SEAD3 evaluation
525 board.
526
527 config NEC_MARKEINS
528 bool "NEC EMMA2RH Mark-eins board"
529 select SOC_EMMA2RH
530 select HW_HAS_PCI
531 help
532 This enables support for the NEC Electronics Mark-eins boards.
533
534 config MACH_VR41XX
535 bool "NEC VR4100 series based machines"
536 select CEVT_R4K
537 select CSRC_R4K
538 select SYS_HAS_CPU_VR41XX
539 select SYS_SUPPORTS_MIPS16
540 select ARCH_REQUIRE_GPIOLIB
541
542 config NXP_STB220
543 bool "NXP STB220 board"
544 select SOC_PNX833X
545 help
546 Support for NXP Semiconductors STB220 Development Board.
547
548 config NXP_STB225
549 bool "NXP 225 board"
550 select SOC_PNX833X
551 select SOC_PNX8335
552 help
553 Support for NXP Semiconductors STB225 Development Board.
554
555 config PMC_MSP
556 bool "PMC-Sierra MSP chipsets"
557 select CEVT_R4K
558 select CSRC_R4K
559 select DMA_NONCOHERENT
560 select SWAP_IO_SPACE
561 select NO_EXCEPT_FILL
562 select BOOT_RAW
563 select SYS_HAS_CPU_MIPS32_R1
564 select SYS_HAS_CPU_MIPS32_R2
565 select SYS_SUPPORTS_32BIT_KERNEL
566 select SYS_SUPPORTS_BIG_ENDIAN
567 select SYS_SUPPORTS_MIPS16
568 select IRQ_MIPS_CPU
569 select SERIAL_8250
570 select SERIAL_8250_CONSOLE
571 select USB_EHCI_BIG_ENDIAN_MMIO
572 select USB_EHCI_BIG_ENDIAN_DESC
573 help
574 This adds support for the PMC-Sierra family of Multi-Service
575 Processor System-On-A-Chips. These parts include a number
576 of integrated peripherals, interfaces and DSPs in addition to
577 a variety of MIPS cores.
578
579 config RALINK
580 bool "Ralink based machines"
581 select CEVT_R4K
582 select CSRC_R4K
583 select BOOT_RAW
584 select DMA_NONCOHERENT
585 select IRQ_MIPS_CPU
586 select USE_OF
587 select SYS_HAS_CPU_MIPS32_R1
588 select SYS_HAS_CPU_MIPS32_R2
589 select SYS_SUPPORTS_32BIT_KERNEL
590 select SYS_SUPPORTS_LITTLE_ENDIAN
591 select SYS_SUPPORTS_MIPS16
592 select SYS_HAS_EARLY_PRINTK
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 || CPU_MIPSR6
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_MT
2173 select SMP
2174 select SMP_UP
2175 select SYS_SUPPORTS_SMP
2176 select SYS_SUPPORTS_SCHED_SMT
2177 select MIPS_PERF_SHARED_TC_COUNTERS
2178 help
2179 This is a kernel model which is known as SMVP. This is supported
2180 on cores with the MT ASE and uses the available VPEs to implement
2181 virtual processors which supports SMP. This is equivalent to the
2182 Intel Hyperthreading feature. For further information go to
2183 <http://www.imgtec.com/mips/mips-multithreading.asp>.
2184
2185 config MIPS_MT
2186 bool
2187
2188 config SCHED_SMT
2189 bool "SMT (multithreading) scheduler support"
2190 depends on SYS_SUPPORTS_SCHED_SMT
2191 default n
2192 help
2193 SMT scheduler support improves the CPU scheduler's decision making
2194 when dealing with MIPS MT enabled cores at a cost of slightly
2195 increased overhead in some places. If unsure say N here.
2196
2197 config SYS_SUPPORTS_SCHED_SMT
2198 bool
2199
2200 config SYS_SUPPORTS_MULTITHREADING
2201 bool
2202
2203 config MIPS_MT_FPAFF
2204 bool "Dynamic FPU affinity for FP-intensive threads"
2205 default y
2206 depends on MIPS_MT_SMP
2207
2208 config MIPSR2_TO_R6_EMULATOR
2209 bool "MIPS R2-to-R6 emulator"
2210 depends on CPU_MIPSR6 && !SMP
2211 default y
2212 help
2213 Choose this option if you want to run non-R6 MIPS userland code.
2214 Even if you say 'Y' here, the emulator will still be disabled by
2215 default. You can enable it using the 'mipsr2emu' kernel option.
2216 The only reason this is a build-time option is to save ~14K from the
2217 final kernel image.
2218 comment "MIPS R2-to-R6 emulator is only available for UP kernels"
2219 depends on SMP && CPU_MIPSR6
2220
2221 config MIPS_VPE_LOADER
2222 bool "VPE loader support."
2223 depends on SYS_SUPPORTS_MULTITHREADING && MODULES
2224 select CPU_MIPSR2_IRQ_VI
2225 select CPU_MIPSR2_IRQ_EI
2226 select MIPS_MT
2227 help
2228 Includes a loader for loading an elf relocatable object
2229 onto another VPE and running it.
2230
2231 config MIPS_VPE_LOADER_CMP
2232 bool
2233 default "y"
2234 depends on MIPS_VPE_LOADER && MIPS_CMP
2235
2236 config MIPS_VPE_LOADER_MT
2237 bool
2238 default "y"
2239 depends on MIPS_VPE_LOADER && !MIPS_CMP
2240
2241 config MIPS_VPE_LOADER_TOM
2242 bool "Load VPE program into memory hidden from linux"
2243 depends on MIPS_VPE_LOADER
2244 default y
2245 help
2246 The loader can use memory that is present but has been hidden from
2247 Linux using the kernel command line option "mem=xxMB". It's up to
2248 you to ensure the amount you put in the option and the space your
2249 program requires is less or equal to the amount physically present.
2250
2251 config MIPS_VPE_APSP_API
2252 bool "Enable support for AP/SP API (RTLX)"
2253 depends on MIPS_VPE_LOADER
2254 help
2255
2256 config MIPS_VPE_APSP_API_CMP
2257 bool
2258 default "y"
2259 depends on MIPS_VPE_APSP_API && MIPS_CMP
2260
2261 config MIPS_VPE_APSP_API_MT
2262 bool
2263 default "y"
2264 depends on MIPS_VPE_APSP_API && !MIPS_CMP
2265
2266 config MIPS_CMP
2267 bool "MIPS CMP framework support (DEPRECATED)"
2268 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2269 select SMP
2270 select SYNC_R4K
2271 select SYS_SUPPORTS_SMP
2272 select WEAK_ORDERING
2273 default n
2274 help
2275 Select this if you are using a bootloader which implements the "CMP
2276 framework" protocol (ie. YAMON) and want your kernel to make use of
2277 its ability to start secondary CPUs.
2278
2279 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2280 instead of this.
2281
2282 config MIPS_CPS
2283 bool "MIPS Coherent Processing System support"
2284 depends on SYS_SUPPORTS_MIPS_CPS && !CPU_MIPSR6
2285 select MIPS_CM
2286 select MIPS_CPC
2287 select MIPS_CPS_PM if HOTPLUG_CPU
2288 select SMP
2289 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2290 select SYS_SUPPORTS_HOTPLUG_CPU
2291 select SYS_SUPPORTS_SMP
2292 select WEAK_ORDERING
2293 help
2294 Select this if you wish to run an SMP kernel across multiple cores
2295 within a MIPS Coherent Processing System. When this option is
2296 enabled the kernel will probe for other cores and boot them with
2297 no external assistance. It is safe to enable this when hardware
2298 support is unavailable.
2299
2300 config MIPS_CPS_PM
2301 depends on MIPS_CPS
2302 select MIPS_CPC
2303 bool
2304
2305 config MIPS_CM
2306 bool
2307
2308 config MIPS_CPC
2309 bool
2310
2311 config SB1_PASS_2_WORKAROUNDS
2312 bool
2313 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2314 default y
2315
2316 config SB1_PASS_2_1_WORKAROUNDS
2317 bool
2318 depends on CPU_SB1 && CPU_SB1_PASS_2
2319 default y
2320
2321
2322 config ARCH_PHYS_ADDR_T_64BIT
2323 bool
2324
2325 choice
2326 prompt "SmartMIPS or microMIPS ASE support"
2327
2328 config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2329 bool "None"
2330 help
2331 Select this if you want neither microMIPS nor SmartMIPS support
2332
2333 config CPU_HAS_SMARTMIPS
2334 depends on SYS_SUPPORTS_SMARTMIPS
2335 bool "SmartMIPS"
2336 help
2337 SmartMIPS is a extension of the MIPS32 architecture aimed at
2338 increased security at both hardware and software level for
2339 smartcards. Enabling this option will allow proper use of the
2340 SmartMIPS instructions by Linux applications. However a kernel with
2341 this option will not work on a MIPS core without SmartMIPS core. If
2342 you don't know you probably don't have SmartMIPS and should say N
2343 here.
2344
2345 config CPU_MICROMIPS
2346 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2347 bool "microMIPS"
2348 help
2349 When this option is enabled the kernel will be built using the
2350 microMIPS ISA
2351
2352 endchoice
2353
2354 config CPU_HAS_MSA
2355 bool "Support for the MIPS SIMD Architecture"
2356 depends on CPU_SUPPORTS_MSA
2357 depends on 64BIT || MIPS_O32_FP64_SUPPORT
2358 help
2359 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2360 and a set of SIMD instructions to operate on them. When this option
2361 is enabled the kernel will support allocating & switching MSA
2362 vector register contexts. If you know that your kernel will only be
2363 running on CPUs which do not support MSA or that your userland will
2364 not be making use of it then you may wish to say N here to reduce
2365 the size & complexity of your kernel.
2366
2367 If unsure, say Y.
2368
2369 config CPU_HAS_WB
2370 bool
2371
2372 config XKS01
2373 bool
2374
2375 #
2376 # Vectored interrupt mode is an R2 feature
2377 #
2378 config CPU_MIPSR2_IRQ_VI
2379 bool
2380
2381 #
2382 # Extended interrupt mode is an R2 feature
2383 #
2384 config CPU_MIPSR2_IRQ_EI
2385 bool
2386
2387 config CPU_HAS_SYNC
2388 bool
2389 depends on !CPU_R3000
2390 default y
2391
2392 #
2393 # CPU non-features
2394 #
2395 config CPU_DADDI_WORKAROUNDS
2396 bool
2397
2398 config CPU_R4000_WORKAROUNDS
2399 bool
2400 select CPU_R4400_WORKAROUNDS
2401
2402 config CPU_R4400_WORKAROUNDS
2403 bool
2404
2405 #
2406 # - Highmem only makes sense for the 32-bit kernel.
2407 # - The current highmem code will only work properly on physically indexed
2408 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2409 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2410 # moment we protect the user and offer the highmem option only on machines
2411 # where it's known to be safe. This will not offer highmem on a few systems
2412 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2413 # indexed CPUs but we're playing safe.
2414 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2415 # know they might have memory configurations that could make use of highmem
2416 # support.
2417 #
2418 config HIGHMEM
2419 bool "High Memory Support"
2420 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2421
2422 config CPU_SUPPORTS_HIGHMEM
2423 bool
2424
2425 config SYS_SUPPORTS_HIGHMEM
2426 bool
2427
2428 config SYS_SUPPORTS_SMARTMIPS
2429 bool
2430
2431 config SYS_SUPPORTS_MICROMIPS
2432 bool
2433
2434 config SYS_SUPPORTS_MIPS16
2435 bool
2436 help
2437 This option must be set if a kernel might be executed on a MIPS16-
2438 enabled CPU even if MIPS16 is not actually being used. In other
2439 words, it makes the kernel MIPS16-tolerant.
2440
2441 config CPU_SUPPORTS_MSA
2442 bool
2443
2444 config ARCH_FLATMEM_ENABLE
2445 def_bool y
2446 depends on !NUMA && !CPU_LOONGSON2
2447
2448 config ARCH_DISCONTIGMEM_ENABLE
2449 bool
2450 default y if SGI_IP27
2451 help
2452 Say Y to support efficient handling of discontiguous physical memory,
2453 for architectures which are either NUMA (Non-Uniform Memory Access)
2454 or have huge holes in the physical address space for other reasons.
2455 See <file:Documentation/vm/numa> for more.
2456
2457 config ARCH_SPARSEMEM_ENABLE
2458 bool
2459 select SPARSEMEM_STATIC
2460
2461 config NUMA
2462 bool "NUMA Support"
2463 depends on SYS_SUPPORTS_NUMA
2464 help
2465 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2466 Access). This option improves performance on systems with more
2467 than two nodes; on two node systems it is generally better to
2468 leave it disabled; on single node systems disable this option
2469 disabled.
2470
2471 config SYS_SUPPORTS_NUMA
2472 bool
2473
2474 config NODES_SHIFT
2475 int
2476 default "6"
2477 depends on NEED_MULTIPLE_NODES
2478
2479 config HW_PERF_EVENTS
2480 bool "Enable hardware performance counter support for perf events"
2481 depends on PERF_EVENTS && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2482 default y
2483 help
2484 Enable hardware performance counter support for perf events. If
2485 disabled, perf events will use software events only.
2486
2487 source "mm/Kconfig"
2488
2489 config SMP
2490 bool "Multi-Processing support"
2491 depends on SYS_SUPPORTS_SMP
2492 help
2493 This enables support for systems with more than one CPU. If you have
2494 a system with only one CPU, say N. If you have a system with more
2495 than one CPU, say Y.
2496
2497 If you say N here, the kernel will run on uni- and multiprocessor
2498 machines, but will use only one CPU of a multiprocessor machine. If
2499 you say Y here, the kernel will run on many, but not all,
2500 uniprocessor machines. On a uniprocessor machine, the kernel
2501 will run faster if you say N here.
2502
2503 People using multiprocessor machines who say Y here should also say
2504 Y to "Enhanced Real Time Clock Support", below.
2505
2506 See also the SMP-HOWTO available at
2507 <http://www.tldp.org/docs.html#howto>.
2508
2509 If you don't know what to do here, say N.
2510
2511 config SMP_UP
2512 bool
2513
2514 config SYS_SUPPORTS_MIPS_CMP
2515 bool
2516
2517 config SYS_SUPPORTS_MIPS_CPS
2518 bool
2519
2520 config SYS_SUPPORTS_SMP
2521 bool
2522
2523 config NR_CPUS_DEFAULT_4
2524 bool
2525
2526 config NR_CPUS_DEFAULT_8
2527 bool
2528
2529 config NR_CPUS_DEFAULT_16
2530 bool
2531
2532 config NR_CPUS_DEFAULT_32
2533 bool
2534
2535 config NR_CPUS_DEFAULT_64
2536 bool
2537
2538 config NR_CPUS
2539 int "Maximum number of CPUs (2-256)"
2540 range 2 256
2541 depends on SMP
2542 default "4" if NR_CPUS_DEFAULT_4
2543 default "8" if NR_CPUS_DEFAULT_8
2544 default "16" if NR_CPUS_DEFAULT_16
2545 default "32" if NR_CPUS_DEFAULT_32
2546 default "64" if NR_CPUS_DEFAULT_64
2547 help
2548 This allows you to specify the maximum number of CPUs which this
2549 kernel will support. The maximum supported value is 32 for 32-bit
2550 kernel and 64 for 64-bit kernels; the minimum value which makes
2551 sense is 1 for Qemu (useful only for kernel debugging purposes)
2552 and 2 for all others.
2553
2554 This is purely to save memory - each supported CPU adds
2555 approximately eight kilobytes to the kernel image. For best
2556 performance should round up your number of processors to the next
2557 power of two.
2558
2559 config MIPS_PERF_SHARED_TC_COUNTERS
2560 bool
2561
2562 #
2563 # Timer Interrupt Frequency Configuration
2564 #
2565
2566 choice
2567 prompt "Timer frequency"
2568 default HZ_250
2569 help
2570 Allows the configuration of the timer frequency.
2571
2572 config HZ_24
2573 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2574
2575 config HZ_48
2576 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2577
2578 config HZ_100
2579 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2580
2581 config HZ_128
2582 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2583
2584 config HZ_250
2585 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2586
2587 config HZ_256
2588 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2589
2590 config HZ_1000
2591 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2592
2593 config HZ_1024
2594 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2595
2596 endchoice
2597
2598 config SYS_SUPPORTS_24HZ
2599 bool
2600
2601 config SYS_SUPPORTS_48HZ
2602 bool
2603
2604 config SYS_SUPPORTS_100HZ
2605 bool
2606
2607 config SYS_SUPPORTS_128HZ
2608 bool
2609
2610 config SYS_SUPPORTS_250HZ
2611 bool
2612
2613 config SYS_SUPPORTS_256HZ
2614 bool
2615
2616 config SYS_SUPPORTS_1000HZ
2617 bool
2618
2619 config SYS_SUPPORTS_1024HZ
2620 bool
2621
2622 config SYS_SUPPORTS_ARBIT_HZ
2623 bool
2624 default y if !SYS_SUPPORTS_24HZ && \
2625 !SYS_SUPPORTS_48HZ && \
2626 !SYS_SUPPORTS_100HZ && \
2627 !SYS_SUPPORTS_128HZ && \
2628 !SYS_SUPPORTS_250HZ && \
2629 !SYS_SUPPORTS_256HZ && \
2630 !SYS_SUPPORTS_1000HZ && \
2631 !SYS_SUPPORTS_1024HZ
2632
2633 config HZ
2634 int
2635 default 24 if HZ_24
2636 default 48 if HZ_48
2637 default 100 if HZ_100
2638 default 128 if HZ_128
2639 default 250 if HZ_250
2640 default 256 if HZ_256
2641 default 1000 if HZ_1000
2642 default 1024 if HZ_1024
2643
2644 config SCHED_HRTICK
2645 def_bool HIGH_RES_TIMERS
2646
2647 source "kernel/Kconfig.preempt"
2648
2649 config KEXEC
2650 bool "Kexec system call"
2651 select KEXEC_CORE
2652 help
2653 kexec is a system call that implements the ability to shutdown your
2654 current kernel, and to start another kernel. It is like a reboot
2655 but it is independent of the system firmware. And like a reboot
2656 you can start any kernel with it, not just Linux.
2657
2658 The name comes from the similarity to the exec system call.
2659
2660 It is an ongoing process to be certain the hardware in a machine
2661 is properly shutdown, so do not be surprised if this code does not
2662 initially work for you. As of this writing the exact hardware
2663 interface is strongly in flux, so no good recommendation can be
2664 made.
2665
2666 config CRASH_DUMP
2667 bool "Kernel crash dumps"
2668 help
2669 Generate crash dump after being started by kexec.
2670 This should be normally only set in special crash dump kernels
2671 which are loaded in the main kernel with kexec-tools into
2672 a specially reserved region and then later executed after
2673 a crash by kdump/kexec. The crash dump kernel must be compiled
2674 to a memory address not used by the main kernel or firmware using
2675 PHYSICAL_START.
2676
2677 config PHYSICAL_START
2678 hex "Physical address where the kernel is loaded"
2679 default "0xffffffff84000000" if 64BIT
2680 default "0x84000000" if 32BIT
2681 depends on CRASH_DUMP
2682 help
2683 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2684 If you plan to use kernel for capturing the crash dump change
2685 this value to start of the reserved region (the "X" value as
2686 specified in the "crashkernel=YM@XM" command line boot parameter
2687 passed to the panic-ed kernel).
2688
2689 config SECCOMP
2690 bool "Enable seccomp to safely compute untrusted bytecode"
2691 depends on PROC_FS
2692 default y
2693 help
2694 This kernel feature is useful for number crunching applications
2695 that may need to compute untrusted bytecode during their
2696 execution. By using pipes or other transports made available to
2697 the process as file descriptors supporting the read/write
2698 syscalls, it's possible to isolate those applications in
2699 their own address space using seccomp. Once seccomp is
2700 enabled via /proc/<pid>/seccomp, it cannot be disabled
2701 and the task is only allowed to execute a few safe syscalls
2702 defined by each seccomp mode.
2703
2704 If unsure, say Y. Only embedded should say N here.
2705
2706 config MIPS_O32_FP64_SUPPORT
2707 bool "Support for O32 binaries using 64-bit FP"
2708 depends on 32BIT || MIPS32_O32
2709 help
2710 When this is enabled, the kernel will support use of 64-bit floating
2711 point registers with binaries using the O32 ABI along with the
2712 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2713 32-bit MIPS systems this support is at the cost of increasing the
2714 size and complexity of the compiled FPU emulator. Thus if you are
2715 running a MIPS32 system and know that none of your userland binaries
2716 will require 64-bit floating point, you may wish to reduce the size
2717 of your kernel & potentially improve FP emulation performance by
2718 saying N here.
2719
2720 Although binutils currently supports use of this flag the details
2721 concerning its effect upon the O32 ABI in userland are still being
2722 worked on. In order to avoid userland becoming dependant upon current
2723 behaviour before the details have been finalised, this option should
2724 be considered experimental and only enabled by those working upon
2725 said details.
2726
2727 If unsure, say N.
2728
2729 config USE_OF
2730 bool
2731 select OF
2732 select OF_EARLY_FLATTREE
2733 select IRQ_DOMAIN
2734
2735 config BUILTIN_DTB
2736 bool
2737
2738 choice
2739 prompt "Kernel appended dtb support" if USE_OF
2740 default MIPS_NO_APPENDED_DTB
2741
2742 config MIPS_NO_APPENDED_DTB
2743 bool "None"
2744 help
2745 Do not enable appended dtb support.
2746
2747 config MIPS_ELF_APPENDED_DTB
2748 bool "vmlinux"
2749 help
2750 With this option, the boot code will look for a device tree binary
2751 DTB) included in the vmlinux ELF section .appended_dtb. By default
2752 it is empty and the DTB can be appended using binutils command
2753 objcopy:
2754
2755 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
2756
2757 This is meant as a backward compatiblity convenience for those
2758 systems with a bootloader that can't be upgraded to accommodate
2759 the documented boot protocol using a device tree.
2760
2761 config MIPS_RAW_APPENDED_DTB
2762 bool "vmlinux.bin"
2763 help
2764 With this option, the boot code will look for a device tree binary
2765 DTB) appended to raw vmlinux.bin (without decompressor).
2766 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
2767
2768 This is meant as a backward compatibility convenience for those
2769 systems with a bootloader that can't be upgraded to accommodate
2770 the documented boot protocol using a device tree.
2771
2772 Beware that there is very little in terms of protection against
2773 this option being confused by leftover garbage in memory that might
2774 look like a DTB header after a reboot if no actual DTB is appended
2775 to vmlinux.bin. Do not leave this option active in a production kernel
2776 if you don't intend to always append a DTB.
2777
2778 config MIPS_ZBOOT_APPENDED_DTB
2779 bool "vmlinuz.bin"
2780 depends on SYS_SUPPORTS_ZBOOT
2781 help
2782 With this option, the boot code will look for a device tree binary
2783 DTB) appended to raw vmlinuz.bin (with decompressor).
2784 (e.g. cat vmlinuz.bin <filename>.dtb > vmlinuz_w_dtb).
2785
2786 This is meant as a backward compatibility convenience for those
2787 systems with a bootloader that can't be upgraded to accommodate
2788 the documented boot protocol using a device tree.
2789
2790 Beware that there is very little in terms of protection against
2791 this option being confused by leftover garbage in memory that might
2792 look like a DTB header after a reboot if no actual DTB is appended
2793 to vmlinuz.bin. Do not leave this option active in a production kernel
2794 if you don't intend to always append a DTB.
2795 endchoice
2796
2797 choice
2798 prompt "Kernel command line type" if !CMDLINE_OVERRIDE
2799 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
2800 !MIPS_MALTA && !MIPS_SEAD3 && \
2801 !CAVIUM_OCTEON_SOC
2802 default MIPS_CMDLINE_FROM_BOOTLOADER
2803
2804 config MIPS_CMDLINE_FROM_DTB
2805 depends on USE_OF
2806 bool "Dtb kernel arguments if available"
2807
2808 config MIPS_CMDLINE_DTB_EXTEND
2809 depends on USE_OF
2810 bool "Extend dtb kernel arguments with bootloader arguments"
2811
2812 config MIPS_CMDLINE_FROM_BOOTLOADER
2813 bool "Bootloader kernel arguments if available"
2814 endchoice
2815
2816 endmenu
2817
2818 config LOCKDEP_SUPPORT
2819 bool
2820 default y
2821
2822 config STACKTRACE_SUPPORT
2823 bool
2824 default y
2825
2826 config HAVE_LATENCYTOP_SUPPORT
2827 bool
2828 default y
2829
2830 config PGTABLE_LEVELS
2831 int
2832 default 3 if 64BIT && !PAGE_SIZE_64KB
2833 default 2
2834
2835 source "init/Kconfig"
2836
2837 source "kernel/Kconfig.freezer"
2838
2839 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2840
2841 config HW_HAS_EISA
2842 bool
2843 config HW_HAS_PCI
2844 bool
2845
2846 config PCI
2847 bool "Support for PCI controller"
2848 depends on HW_HAS_PCI
2849 select PCI_DOMAINS
2850 select NO_GENERIC_PCI_IOPORT_MAP
2851 help
2852 Find out whether you have a PCI motherboard. PCI is the name of a
2853 bus system, i.e. the way the CPU talks to the other stuff inside
2854 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2855 say Y, otherwise N.
2856
2857 config HT_PCI
2858 bool "Support for HT-linked PCI"
2859 default y
2860 depends on CPU_LOONGSON3
2861 select PCI
2862 select PCI_DOMAINS
2863 help
2864 Loongson family machines use Hyper-Transport bus for inter-core
2865 connection and device connection. The PCI bus is a subordinate
2866 linked at HT. Choose Y for Loongson-3 based machines.
2867
2868 config PCI_DOMAINS
2869 bool
2870
2871 source "drivers/pci/Kconfig"
2872
2873 #
2874 # ISA support is now enabled via select. Too many systems still have the one
2875 # or other ISA chip on the board that users don't know about so don't expect
2876 # users to choose the right thing ...
2877 #
2878 config ISA
2879 bool
2880
2881 config EISA
2882 bool "EISA support"
2883 depends on HW_HAS_EISA
2884 select ISA
2885 select GENERIC_ISA_DMA
2886 ---help---
2887 The Extended Industry Standard Architecture (EISA) bus was
2888 developed as an open alternative to the IBM MicroChannel bus.
2889
2890 The EISA bus provided some of the features of the IBM MicroChannel
2891 bus while maintaining backward compatibility with cards made for
2892 the older ISA bus. The EISA bus saw limited use between 1988 and
2893 1995 when it was made obsolete by the PCI bus.
2894
2895 Say Y here if you are building a kernel for an EISA-based machine.
2896
2897 Otherwise, say N.
2898
2899 source "drivers/eisa/Kconfig"
2900
2901 config TC
2902 bool "TURBOchannel support"
2903 depends on MACH_DECSTATION
2904 help
2905 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2906 processors. TURBOchannel programming specifications are available
2907 at:
2908 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2909 and:
2910 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2911 Linux driver support status is documented at:
2912 <http://www.linux-mips.org/wiki/DECstation>
2913
2914 config MMU
2915 bool
2916 default y
2917
2918 config I8253
2919 bool
2920 select CLKSRC_I8253
2921 select CLKEVT_I8253
2922 select MIPS_EXTERNAL_TIMER
2923
2924 config ZONE_DMA
2925 bool
2926
2927 config ZONE_DMA32
2928 bool
2929
2930 source "drivers/pcmcia/Kconfig"
2931
2932 config RAPIDIO
2933 tristate "RapidIO support"
2934 depends on PCI
2935 default n
2936 help
2937 If you say Y here, the kernel will include drivers and
2938 infrastructure code to support RapidIO interconnect devices.
2939
2940 source "drivers/rapidio/Kconfig"
2941
2942 endmenu
2943
2944 menu "Executable file formats"
2945
2946 source "fs/Kconfig.binfmt"
2947
2948 config TRAD_SIGNALS
2949 bool
2950
2951 config MIPS32_COMPAT
2952 bool
2953
2954 config COMPAT
2955 bool
2956
2957 config SYSVIPC_COMPAT
2958 bool
2959
2960 config MIPS32_O32
2961 bool "Kernel support for o32 binaries"
2962 depends on 64BIT
2963 select ARCH_WANT_OLD_COMPAT_IPC
2964 select COMPAT
2965 select MIPS32_COMPAT
2966 select SYSVIPC_COMPAT if SYSVIPC
2967 help
2968 Select this option if you want to run o32 binaries. These are pure
2969 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2970 existing binaries are in this format.
2971
2972 If unsure, say Y.
2973
2974 config MIPS32_N32
2975 bool "Kernel support for n32 binaries"
2976 depends on 64BIT
2977 select COMPAT
2978 select MIPS32_COMPAT
2979 select SYSVIPC_COMPAT if SYSVIPC
2980 help
2981 Select this option if you want to run n32 binaries. These are
2982 64-bit binaries using 32-bit quantities for addressing and certain
2983 data that would normally be 64-bit. They are used in special
2984 cases.
2985
2986 If unsure, say N.
2987
2988 config BINFMT_ELF32
2989 bool
2990 default y if MIPS32_O32 || MIPS32_N32
2991
2992 endmenu
2993
2994 menu "Power management options"
2995
2996 config ARCH_HIBERNATION_POSSIBLE
2997 def_bool y
2998 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2999
3000 config ARCH_SUSPEND_POSSIBLE
3001 def_bool y
3002 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3003
3004 source "kernel/power/Kconfig"
3005
3006 endmenu
3007
3008 config MIPS_EXTERNAL_TIMER
3009 bool
3010
3011 menu "CPU Power Management"
3012
3013 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3014 source "drivers/cpufreq/Kconfig"
3015 endif
3016
3017 source "drivers/cpuidle/Kconfig"
3018
3019 endmenu
3020
3021 source "net/Kconfig"
3022
3023 source "drivers/Kconfig"
3024
3025 source "drivers/firmware/Kconfig"
3026
3027 source "fs/Kconfig"
3028
3029 source "arch/mips/Kconfig.debug"
3030
3031 source "security/Kconfig"
3032
3033 source "crypto/Kconfig"
3034
3035 source "lib/Kconfig"
3036
3037 source "arch/mips/kvm/Kconfig"