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1config 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
67menu "Machine selection"
68
69choice
70 prompt "System type"
71 default SGI_IP22
72
73config 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
87config 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
109config 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
123config 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
146config 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
181config 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 select BCM47XX_SPROM
201 help
202 Support for BCM47XX based boards
203
204config BCM63XX
205 bool "Broadcom BCM63XX based boards"
206 select BOOT_RAW
207 select CEVT_R4K
208 select CSRC_R4K
209 select SYNC_R4K
210 select DMA_NONCOHERENT
211 select IRQ_MIPS_CPU
212 select SYS_SUPPORTS_32BIT_KERNEL
213 select SYS_SUPPORTS_BIG_ENDIAN
214 select SYS_HAS_EARLY_PRINTK
215 select SWAP_IO_SPACE
216 select ARCH_REQUIRE_GPIOLIB
217 select HAVE_CLK
218 select MIPS_L1_CACHE_SHIFT_4
219 help
220 Support for BCM63XX based boards
221
222config MIPS_COBALT
223 bool "Cobalt Server"
224 select CEVT_R4K
225 select CSRC_R4K
226 select CEVT_GT641XX
227 select DMA_NONCOHERENT
228 select HW_HAS_PCI
229 select I8253
230 select I8259
231 select IRQ_MIPS_CPU
232 select IRQ_GT641XX
233 select PCI_GT64XXX_PCI0
234 select PCI
235 select SYS_HAS_CPU_NEVADA
236 select SYS_HAS_EARLY_PRINTK
237 select SYS_SUPPORTS_32BIT_KERNEL
238 select SYS_SUPPORTS_64BIT_KERNEL
239 select SYS_SUPPORTS_LITTLE_ENDIAN
240 select USE_GENERIC_EARLY_PRINTK_8250
241
242config MACH_DECSTATION
243 bool "DECstations"
244 select BOOT_ELF32
245 select CEVT_DS1287
246 select CEVT_R4K if CPU_R4X00
247 select CSRC_IOASIC
248 select CSRC_R4K if CPU_R4X00
249 select CPU_DADDI_WORKAROUNDS if 64BIT
250 select CPU_R4000_WORKAROUNDS if 64BIT
251 select CPU_R4400_WORKAROUNDS if 64BIT
252 select DMA_NONCOHERENT
253 select NO_IOPORT_MAP
254 select IRQ_MIPS_CPU
255 select SYS_HAS_CPU_R3000
256 select SYS_HAS_CPU_R4X00
257 select SYS_SUPPORTS_32BIT_KERNEL
258 select SYS_SUPPORTS_64BIT_KERNEL
259 select SYS_SUPPORTS_LITTLE_ENDIAN
260 select SYS_SUPPORTS_128HZ
261 select SYS_SUPPORTS_256HZ
262 select SYS_SUPPORTS_1024HZ
263 select MIPS_L1_CACHE_SHIFT_4
264 help
265 This enables support for DEC's MIPS based workstations. For details
266 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
267 DECstation porting pages on <http://decstation.unix-ag.org/>.
268
269 If you have one of the following DECstation Models you definitely
270 want to choose R4xx0 for the CPU Type:
271
272 DECstation 5000/50
273 DECstation 5000/150
274 DECstation 5000/260
275 DECsystem 5900/260
276
277 otherwise choose R3000.
278
279config MACH_JAZZ
280 bool "Jazz family of machines"
281 select FW_ARC
282 select FW_ARC32
283 select ARCH_MAY_HAVE_PC_FDC
284 select CEVT_R4K
285 select CSRC_R4K
286 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
287 select GENERIC_ISA_DMA
288 select HAVE_PCSPKR_PLATFORM
289 select IRQ_MIPS_CPU
290 select I8253
291 select I8259
292 select ISA
293 select SYS_HAS_CPU_R4X00
294 select SYS_SUPPORTS_32BIT_KERNEL
295 select SYS_SUPPORTS_64BIT_KERNEL
296 select SYS_SUPPORTS_100HZ
297 help
298 This a family of machines based on the MIPS R4030 chipset which was
299 used by several vendors to build RISC/os and Windows NT workstations.
300 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
301 Olivetti M700-10 workstations.
302
303config MACH_INGENIC
304 bool "Ingenic SoC based machines"
305 select SYS_SUPPORTS_32BIT_KERNEL
306 select SYS_SUPPORTS_LITTLE_ENDIAN
307 select SYS_SUPPORTS_ZBOOT_UART16550
308 select DMA_NONCOHERENT
309 select IRQ_MIPS_CPU
310 select ARCH_REQUIRE_GPIOLIB
311 select COMMON_CLK
312 select GENERIC_IRQ_CHIP
313 select BUILTIN_DTB
314 select USE_OF
315 select LIBFDT
316
317config LANTIQ
318 bool "Lantiq based platforms"
319 select DMA_NONCOHERENT
320 select IRQ_MIPS_CPU
321 select CEVT_R4K
322 select CSRC_R4K
323 select SYS_HAS_CPU_MIPS32_R1
324 select SYS_HAS_CPU_MIPS32_R2
325 select SYS_SUPPORTS_BIG_ENDIAN
326 select SYS_SUPPORTS_32BIT_KERNEL
327 select SYS_SUPPORTS_MIPS16
328 select SYS_SUPPORTS_MULTITHREADING
329 select SYS_HAS_EARLY_PRINTK
330 select ARCH_REQUIRE_GPIOLIB
331 select SWAP_IO_SPACE
332 select BOOT_RAW
333 select CLKDEV_LOOKUP
334 select USE_OF
335 select PINCTRL
336 select PINCTRL_LANTIQ
337 select ARCH_HAS_RESET_CONTROLLER
338 select RESET_CONTROLLER
339
340config LASAT
341 bool "LASAT Networks platforms"
342 select CEVT_R4K
343 select CRC32
344 select CSRC_R4K
345 select DMA_NONCOHERENT
346 select SYS_HAS_EARLY_PRINTK
347 select HW_HAS_PCI
348 select IRQ_MIPS_CPU
349 select PCI_GT64XXX_PCI0
350 select MIPS_NILE4
351 select R5000_CPU_SCACHE
352 select SYS_HAS_CPU_R5000
353 select SYS_SUPPORTS_32BIT_KERNEL
354 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
355 select SYS_SUPPORTS_LITTLE_ENDIAN
356
357config MACH_LOONGSON32
358 bool "Loongson-1 family of machines"
359 select SYS_SUPPORTS_ZBOOT
360 help
361 This enables support for the Loongson-1 family of machines.
362
363 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
364 the Institute of Computing Technology (ICT), Chinese Academy of
365 Sciences (CAS).
366
367config MACH_LOONGSON64
368 bool "Loongson-2/3 family of machines"
369 select SYS_SUPPORTS_ZBOOT
370 help
371 This enables the support of Loongson-2/3 family of machines.
372
373 Loongson-2 is a family of single-core CPUs and Loongson-3 is a
374 family of multi-core CPUs. They are both 64-bit general-purpose
375 MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute
376 of Computing Technology (ICT), Chinese Academy of Sciences (CAS)
377 in the People's Republic of China. The chief architect is Professor
378 Weiwu Hu.
379
380config MACH_PISTACHIO
381 bool "IMG Pistachio SoC based boards"
382 select ARCH_REQUIRE_GPIOLIB
383 select BOOT_ELF32
384 select BOOT_RAW
385 select CEVT_R4K
386 select CLKSRC_MIPS_GIC
387 select COMMON_CLK
388 select CSRC_R4K
389 select DMA_MAYBE_COHERENT
390 select IRQ_MIPS_CPU
391 select LIBFDT
392 select MFD_SYSCON
393 select MIPS_CPU_SCACHE
394 select MIPS_GIC
395 select PINCTRL
396 select REGULATOR
397 select SYS_HAS_CPU_MIPS32_R2
398 select SYS_SUPPORTS_32BIT_KERNEL
399 select SYS_SUPPORTS_LITTLE_ENDIAN
400 select SYS_SUPPORTS_MIPS_CPS
401 select SYS_SUPPORTS_MULTITHREADING
402 select SYS_SUPPORTS_ZBOOT
403 select SYS_HAS_EARLY_PRINTK
404 select USE_GENERIC_EARLY_PRINTK_8250
405 select USE_OF
406 help
407 This enables support for the IMG Pistachio SoC platform.
408
409config MACH_XILFPGA
410 bool "MIPSfpga Xilinx based boards"
411 select ARCH_REQUIRE_GPIOLIB
412 select BOOT_ELF32
413 select BOOT_RAW
414 select BUILTIN_DTB
415 select CEVT_R4K
416 select COMMON_CLK
417 select CSRC_R4K
418 select IRQ_MIPS_CPU
419 select LIBFDT
420 select MIPS_CPU_SCACHE
421 select SYS_HAS_EARLY_PRINTK
422 select SYS_HAS_CPU_MIPS32_R2
423 select SYS_SUPPORTS_32BIT_KERNEL
424 select SYS_SUPPORTS_LITTLE_ENDIAN
425 select SYS_SUPPORTS_ZBOOT_UART16550
426 select USE_OF
427 select USE_GENERIC_EARLY_PRINTK_8250
428 help
429 This enables support for the IMG University Program MIPSfpga platform.
430
431config MIPS_MALTA
432 bool "MIPS Malta board"
433 select ARCH_MAY_HAVE_PC_FDC
434 select BOOT_ELF32
435 select BOOT_RAW
436 select BUILTIN_DTB
437 select CEVT_R4K
438 select CSRC_R4K
439 select CLKSRC_MIPS_GIC
440 select COMMON_CLK
441 select DMA_MAYBE_COHERENT
442 select GENERIC_ISA_DMA
443 select HAVE_PCSPKR_PLATFORM
444 select IRQ_MIPS_CPU
445 select MIPS_GIC
446 select HW_HAS_PCI
447 select I8253
448 select I8259
449 select MIPS_BONITO64
450 select MIPS_CPU_SCACHE
451 select MIPS_L1_CACHE_SHIFT_6
452 select PCI_GT64XXX_PCI0
453 select MIPS_MSC
454 select SMP_UP if SMP
455 select SWAP_IO_SPACE
456 select SYS_HAS_CPU_MIPS32_R1
457 select SYS_HAS_CPU_MIPS32_R2
458 select SYS_HAS_CPU_MIPS32_R3_5
459 select SYS_HAS_CPU_MIPS32_R5
460 select SYS_HAS_CPU_MIPS32_R6
461 select SYS_HAS_CPU_MIPS64_R1
462 select SYS_HAS_CPU_MIPS64_R2
463 select SYS_HAS_CPU_MIPS64_R6
464 select SYS_HAS_CPU_NEVADA
465 select SYS_HAS_CPU_RM7000
466 select SYS_SUPPORTS_32BIT_KERNEL
467 select SYS_SUPPORTS_64BIT_KERNEL
468 select SYS_SUPPORTS_BIG_ENDIAN
469 select SYS_SUPPORTS_HIGHMEM
470 select SYS_SUPPORTS_LITTLE_ENDIAN
471 select SYS_SUPPORTS_MICROMIPS
472 select SYS_SUPPORTS_MIPS_CMP
473 select SYS_SUPPORTS_MIPS_CPS
474 select SYS_SUPPORTS_MIPS16
475 select SYS_SUPPORTS_MULTITHREADING
476 select SYS_SUPPORTS_SMARTMIPS
477 select SYS_SUPPORTS_ZBOOT
478 select SYS_SUPPORTS_RELOCATABLE
479 select USE_OF
480 select ZONE_DMA32 if 64BIT
481 select BUILTIN_DTB
482 select LIBFDT
483 help
484 This enables support for the MIPS Technologies Malta evaluation
485 board.
486
487config MACH_PIC32
488 bool "Microchip PIC32 Family"
489 help
490 This enables support for the Microchip PIC32 family of platforms.
491
492 Microchip PIC32 is a family of general-purpose 32 bit MIPS core
493 microcontrollers.
494
495config MIPS_SEAD3
496 bool "MIPS SEAD3 board"
497 select BOOT_ELF32
498 select BOOT_RAW
499 select BUILTIN_DTB
500 select CEVT_R4K
501 select CSRC_R4K
502 select CLKSRC_MIPS_GIC
503 select COMMON_CLK
504 select CPU_MIPSR2_IRQ_VI
505 select CPU_MIPSR2_IRQ_EI
506 select DMA_NONCOHERENT
507 select IRQ_MIPS_CPU
508 select MIPS_GIC
509 select LIBFDT
510 select MIPS_MSC
511 select SYS_HAS_CPU_MIPS32_R1
512 select SYS_HAS_CPU_MIPS32_R2
513 select SYS_HAS_CPU_MIPS32_R6
514 select SYS_HAS_CPU_MIPS64_R1
515 select SYS_HAS_EARLY_PRINTK
516 select SYS_SUPPORTS_32BIT_KERNEL
517 select SYS_SUPPORTS_64BIT_KERNEL
518 select SYS_SUPPORTS_BIG_ENDIAN
519 select SYS_SUPPORTS_LITTLE_ENDIAN
520 select SYS_SUPPORTS_SMARTMIPS
521 select SYS_SUPPORTS_MICROMIPS
522 select SYS_SUPPORTS_MIPS16
523 select SYS_SUPPORTS_RELOCATABLE
524 select USB_EHCI_BIG_ENDIAN_DESC
525 select USB_EHCI_BIG_ENDIAN_MMIO
526 select USE_OF
527 help
528 This enables support for the MIPS Technologies SEAD3 evaluation
529 board.
530
531config NEC_MARKEINS
532 bool "NEC EMMA2RH Mark-eins board"
533 select SOC_EMMA2RH
534 select HW_HAS_PCI
535 help
536 This enables support for the NEC Electronics Mark-eins boards.
537
538config MACH_VR41XX
539 bool "NEC VR4100 series based machines"
540 select CEVT_R4K
541 select CSRC_R4K
542 select SYS_HAS_CPU_VR41XX
543 select SYS_SUPPORTS_MIPS16
544 select ARCH_REQUIRE_GPIOLIB
545
546config NXP_STB220
547 bool "NXP STB220 board"
548 select SOC_PNX833X
549 help
550 Support for NXP Semiconductors STB220 Development Board.
551
552config NXP_STB225
553 bool "NXP 225 board"
554 select SOC_PNX833X
555 select SOC_PNX8335
556 help
557 Support for NXP Semiconductors STB225 Development Board.
558
559config PMC_MSP
560 bool "PMC-Sierra MSP chipsets"
561 select CEVT_R4K
562 select CSRC_R4K
563 select DMA_NONCOHERENT
564 select SWAP_IO_SPACE
565 select NO_EXCEPT_FILL
566 select BOOT_RAW
567 select SYS_HAS_CPU_MIPS32_R1
568 select SYS_HAS_CPU_MIPS32_R2
569 select SYS_SUPPORTS_32BIT_KERNEL
570 select SYS_SUPPORTS_BIG_ENDIAN
571 select SYS_SUPPORTS_MIPS16
572 select IRQ_MIPS_CPU
573 select SERIAL_8250
574 select SERIAL_8250_CONSOLE
575 select USB_EHCI_BIG_ENDIAN_MMIO
576 select USB_EHCI_BIG_ENDIAN_DESC
577 help
578 This adds support for the PMC-Sierra family of Multi-Service
579 Processor System-On-A-Chips. These parts include a number
580 of integrated peripherals, interfaces and DSPs in addition to
581 a variety of MIPS cores.
582
583config RALINK
584 bool "Ralink based machines"
585 select CEVT_R4K
586 select CSRC_R4K
587 select BOOT_RAW
588 select DMA_NONCOHERENT
589 select IRQ_MIPS_CPU
590 select USE_OF
591 select SYS_HAS_CPU_MIPS32_R1
592 select SYS_HAS_CPU_MIPS32_R2
593 select SYS_SUPPORTS_32BIT_KERNEL
594 select SYS_SUPPORTS_LITTLE_ENDIAN
595 select SYS_SUPPORTS_MIPS16
596 select SYS_HAS_EARLY_PRINTK
597 select CLKDEV_LOOKUP
598 select ARCH_HAS_RESET_CONTROLLER
599 select RESET_CONTROLLER
600
601config SGI_IP22
602 bool "SGI IP22 (Indy/Indigo2)"
603 select FW_ARC
604 select FW_ARC32
605 select BOOT_ELF32
606 select CEVT_R4K
607 select CSRC_R4K
608 select DEFAULT_SGI_PARTITION
609 select DMA_NONCOHERENT
610 select HW_HAS_EISA
611 select I8253
612 select I8259
613 select IP22_CPU_SCACHE
614 select IRQ_MIPS_CPU
615 select GENERIC_ISA_DMA_SUPPORT_BROKEN
616 select SGI_HAS_I8042
617 select SGI_HAS_INDYDOG
618 select SGI_HAS_HAL2
619 select SGI_HAS_SEEQ
620 select SGI_HAS_WD93
621 select SGI_HAS_ZILOG
622 select SWAP_IO_SPACE
623 select SYS_HAS_CPU_R4X00
624 select SYS_HAS_CPU_R5000
625 #
626 # Disable EARLY_PRINTK for now since it leads to overwritten prom
627 # memory during early boot on some machines.
628 #
629 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
630 # for a more details discussion
631 #
632 # select SYS_HAS_EARLY_PRINTK
633 select SYS_SUPPORTS_32BIT_KERNEL
634 select SYS_SUPPORTS_64BIT_KERNEL
635 select SYS_SUPPORTS_BIG_ENDIAN
636 select MIPS_L1_CACHE_SHIFT_7
637 help
638 This are the SGI Indy, Challenge S and Indigo2, as well as certain
639 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
640 that runs on these, say Y here.
641
642config SGI_IP27
643 bool "SGI IP27 (Origin200/2000)"
644 select FW_ARC
645 select FW_ARC64
646 select BOOT_ELF64
647 select DEFAULT_SGI_PARTITION
648 select DMA_COHERENT
649 select SYS_HAS_EARLY_PRINTK
650 select HW_HAS_PCI
651 select NR_CPUS_DEFAULT_64
652 select SYS_HAS_CPU_R10000
653 select SYS_SUPPORTS_64BIT_KERNEL
654 select SYS_SUPPORTS_BIG_ENDIAN
655 select SYS_SUPPORTS_NUMA
656 select SYS_SUPPORTS_SMP
657 select MIPS_L1_CACHE_SHIFT_7
658 help
659 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
660 workstations. To compile a Linux kernel that runs on these, say Y
661 here.
662
663config SGI_IP28
664 bool "SGI IP28 (Indigo2 R10k)"
665 select FW_ARC
666 select FW_ARC64
667 select BOOT_ELF64
668 select CEVT_R4K
669 select CSRC_R4K
670 select DEFAULT_SGI_PARTITION
671 select DMA_NONCOHERENT
672 select GENERIC_ISA_DMA_SUPPORT_BROKEN
673 select IRQ_MIPS_CPU
674 select HW_HAS_EISA
675 select I8253
676 select I8259
677 select SGI_HAS_I8042
678 select SGI_HAS_INDYDOG
679 select SGI_HAS_HAL2
680 select SGI_HAS_SEEQ
681 select SGI_HAS_WD93
682 select SGI_HAS_ZILOG
683 select SWAP_IO_SPACE
684 select SYS_HAS_CPU_R10000
685 #
686 # Disable EARLY_PRINTK for now since it leads to overwritten prom
687 # memory during early boot on some machines.
688 #
689 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
690 # for a more details discussion
691 #
692 # select SYS_HAS_EARLY_PRINTK
693 select SYS_SUPPORTS_64BIT_KERNEL
694 select SYS_SUPPORTS_BIG_ENDIAN
695 select MIPS_L1_CACHE_SHIFT_7
696 help
697 This is the SGI Indigo2 with R10000 processor. To compile a Linux
698 kernel that runs on these, say Y here.
699
700config SGI_IP32
701 bool "SGI IP32 (O2)"
702 select FW_ARC
703 select FW_ARC32
704 select BOOT_ELF32
705 select CEVT_R4K
706 select CSRC_R4K
707 select DMA_NONCOHERENT
708 select HW_HAS_PCI
709 select IRQ_MIPS_CPU
710 select R5000_CPU_SCACHE
711 select RM7000_CPU_SCACHE
712 select SYS_HAS_CPU_R5000
713 select SYS_HAS_CPU_R10000 if BROKEN
714 select SYS_HAS_CPU_RM7000
715 select SYS_HAS_CPU_NEVADA
716 select SYS_SUPPORTS_64BIT_KERNEL
717 select SYS_SUPPORTS_BIG_ENDIAN
718 help
719 If you want this kernel to run on SGI O2 workstation, say Y here.
720
721config SIBYTE_CRHINE
722 bool "Sibyte BCM91120C-CRhine"
723 select BOOT_ELF32
724 select DMA_COHERENT
725 select SIBYTE_BCM1120
726 select SWAP_IO_SPACE
727 select SYS_HAS_CPU_SB1
728 select SYS_SUPPORTS_BIG_ENDIAN
729 select SYS_SUPPORTS_LITTLE_ENDIAN
730
731config SIBYTE_CARMEL
732 bool "Sibyte BCM91120x-Carmel"
733 select BOOT_ELF32
734 select DMA_COHERENT
735 select SIBYTE_BCM1120
736 select SWAP_IO_SPACE
737 select SYS_HAS_CPU_SB1
738 select SYS_SUPPORTS_BIG_ENDIAN
739 select SYS_SUPPORTS_LITTLE_ENDIAN
740
741config SIBYTE_CRHONE
742 bool "Sibyte BCM91125C-CRhone"
743 select BOOT_ELF32
744 select DMA_COHERENT
745 select SIBYTE_BCM1125
746 select SWAP_IO_SPACE
747 select SYS_HAS_CPU_SB1
748 select SYS_SUPPORTS_BIG_ENDIAN
749 select SYS_SUPPORTS_HIGHMEM
750 select SYS_SUPPORTS_LITTLE_ENDIAN
751
752config SIBYTE_RHONE
753 bool "Sibyte BCM91125E-Rhone"
754 select BOOT_ELF32
755 select DMA_COHERENT
756 select SIBYTE_BCM1125H
757 select SWAP_IO_SPACE
758 select SYS_HAS_CPU_SB1
759 select SYS_SUPPORTS_BIG_ENDIAN
760 select SYS_SUPPORTS_LITTLE_ENDIAN
761
762config SIBYTE_SWARM
763 bool "Sibyte BCM91250A-SWARM"
764 select BOOT_ELF32
765 select DMA_COHERENT
766 select HAVE_PATA_PLATFORM
767 select SIBYTE_SB1250
768 select SWAP_IO_SPACE
769 select SYS_HAS_CPU_SB1
770 select SYS_SUPPORTS_BIG_ENDIAN
771 select SYS_SUPPORTS_HIGHMEM
772 select SYS_SUPPORTS_LITTLE_ENDIAN
773 select ZONE_DMA32 if 64BIT
774
775config SIBYTE_LITTLESUR
776 bool "Sibyte BCM91250C2-LittleSur"
777 select BOOT_ELF32
778 select DMA_COHERENT
779 select HAVE_PATA_PLATFORM
780 select SIBYTE_SB1250
781 select SWAP_IO_SPACE
782 select SYS_HAS_CPU_SB1
783 select SYS_SUPPORTS_BIG_ENDIAN
784 select SYS_SUPPORTS_HIGHMEM
785 select SYS_SUPPORTS_LITTLE_ENDIAN
786
787config SIBYTE_SENTOSA
788 bool "Sibyte BCM91250E-Sentosa"
789 select BOOT_ELF32
790 select DMA_COHERENT
791 select SIBYTE_SB1250
792 select SWAP_IO_SPACE
793 select SYS_HAS_CPU_SB1
794 select SYS_SUPPORTS_BIG_ENDIAN
795 select SYS_SUPPORTS_LITTLE_ENDIAN
796
797config SIBYTE_BIGSUR
798 bool "Sibyte BCM91480B-BigSur"
799 select BOOT_ELF32
800 select DMA_COHERENT
801 select NR_CPUS_DEFAULT_4
802 select SIBYTE_BCM1x80
803 select SWAP_IO_SPACE
804 select SYS_HAS_CPU_SB1
805 select SYS_SUPPORTS_BIG_ENDIAN
806 select SYS_SUPPORTS_HIGHMEM
807 select SYS_SUPPORTS_LITTLE_ENDIAN
808 select ZONE_DMA32 if 64BIT
809
810config SNI_RM
811 bool "SNI RM200/300/400"
812 select FW_ARC if CPU_LITTLE_ENDIAN
813 select FW_ARC32 if CPU_LITTLE_ENDIAN
814 select FW_SNIPROM if CPU_BIG_ENDIAN
815 select ARCH_MAY_HAVE_PC_FDC
816 select BOOT_ELF32
817 select CEVT_R4K
818 select CSRC_R4K
819 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
820 select DMA_NONCOHERENT
821 select GENERIC_ISA_DMA
822 select HAVE_PCSPKR_PLATFORM
823 select HW_HAS_EISA
824 select HW_HAS_PCI
825 select IRQ_MIPS_CPU
826 select I8253
827 select I8259
828 select ISA
829 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
830 select SYS_HAS_CPU_R4X00
831 select SYS_HAS_CPU_R5000
832 select SYS_HAS_CPU_R10000
833 select R5000_CPU_SCACHE
834 select SYS_HAS_EARLY_PRINTK
835 select SYS_SUPPORTS_32BIT_KERNEL
836 select SYS_SUPPORTS_64BIT_KERNEL
837 select SYS_SUPPORTS_BIG_ENDIAN
838 select SYS_SUPPORTS_HIGHMEM
839 select SYS_SUPPORTS_LITTLE_ENDIAN
840 help
841 The SNI RM200/300/400 are MIPS-based machines manufactured by
842 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
843 Technology and now in turn merged with Fujitsu. Say Y here to
844 support this machine type.
845
846config MACH_TX39XX
847 bool "Toshiba TX39 series based machines"
848
849config MACH_TX49XX
850 bool "Toshiba TX49 series based machines"
851
852config MIKROTIK_RB532
853 bool "Mikrotik RB532 boards"
854 select CEVT_R4K
855 select CSRC_R4K
856 select DMA_NONCOHERENT
857 select HW_HAS_PCI
858 select IRQ_MIPS_CPU
859 select SYS_HAS_CPU_MIPS32_R1
860 select SYS_SUPPORTS_32BIT_KERNEL
861 select SYS_SUPPORTS_LITTLE_ENDIAN
862 select SWAP_IO_SPACE
863 select BOOT_RAW
864 select ARCH_REQUIRE_GPIOLIB
865 select MIPS_L1_CACHE_SHIFT_4
866 help
867 Support the Mikrotik(tm) RouterBoard 532 series,
868 based on the IDT RC32434 SoC.
869
870config CAVIUM_OCTEON_SOC
871 bool "Cavium Networks Octeon SoC based boards"
872 select CEVT_R4K
873 select ARCH_PHYS_ADDR_T_64BIT
874 select DMA_COHERENT
875 select SYS_SUPPORTS_64BIT_KERNEL
876 select SYS_SUPPORTS_BIG_ENDIAN
877 select EDAC_SUPPORT
878 select EDAC_ATOMIC_SCRUB
879 select SYS_SUPPORTS_LITTLE_ENDIAN
880 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
881 select SYS_HAS_EARLY_PRINTK
882 select SYS_HAS_CPU_CAVIUM_OCTEON
883 select SWAP_IO_SPACE
884 select HW_HAS_PCI
885 select ZONE_DMA32
886 select HOLES_IN_ZONE
887 select ARCH_REQUIRE_GPIOLIB
888 select LIBFDT
889 select USE_OF
890 select ARCH_SPARSEMEM_ENABLE
891 select SYS_SUPPORTS_SMP
892 select NR_CPUS_DEFAULT_16
893 select BUILTIN_DTB
894 select MTD_COMPLEX_MAPPINGS
895 help
896 This option supports all of the Octeon reference boards from Cavium
897 Networks. It builds a kernel that dynamically determines the Octeon
898 CPU type and supports all known board reference implementations.
899 Some of the supported boards are:
900 EBT3000
901 EBH3000
902 EBH3100
903 Thunder
904 Kodama
905 Hikari
906 Say Y here for most Octeon reference boards.
907
908config NLM_XLR_BOARD
909 bool "Netlogic XLR/XLS based systems"
910 select BOOT_ELF32
911 select NLM_COMMON
912 select SYS_HAS_CPU_XLR
913 select SYS_SUPPORTS_SMP
914 select HW_HAS_PCI
915 select SWAP_IO_SPACE
916 select SYS_SUPPORTS_32BIT_KERNEL
917 select SYS_SUPPORTS_64BIT_KERNEL
918 select ARCH_PHYS_ADDR_T_64BIT
919 select SYS_SUPPORTS_BIG_ENDIAN
920 select SYS_SUPPORTS_HIGHMEM
921 select DMA_COHERENT
922 select NR_CPUS_DEFAULT_32
923 select CEVT_R4K
924 select CSRC_R4K
925 select IRQ_MIPS_CPU
926 select ZONE_DMA32 if 64BIT
927 select SYNC_R4K
928 select SYS_HAS_EARLY_PRINTK
929 select SYS_SUPPORTS_ZBOOT
930 select SYS_SUPPORTS_ZBOOT_UART16550
931 help
932 Support for systems based on Netlogic XLR and XLS processors.
933 Say Y here if you have a XLR or XLS based board.
934
935config NLM_XLP_BOARD
936 bool "Netlogic XLP based systems"
937 select BOOT_ELF32
938 select NLM_COMMON
939 select SYS_HAS_CPU_XLP
940 select SYS_SUPPORTS_SMP
941 select HW_HAS_PCI
942 select SYS_SUPPORTS_32BIT_KERNEL
943 select SYS_SUPPORTS_64BIT_KERNEL
944 select ARCH_PHYS_ADDR_T_64BIT
945 select ARCH_REQUIRE_GPIOLIB
946 select SYS_SUPPORTS_BIG_ENDIAN
947 select SYS_SUPPORTS_LITTLE_ENDIAN
948 select SYS_SUPPORTS_HIGHMEM
949 select DMA_COHERENT
950 select NR_CPUS_DEFAULT_32
951 select CEVT_R4K
952 select CSRC_R4K
953 select IRQ_MIPS_CPU
954 select ZONE_DMA32 if 64BIT
955 select SYNC_R4K
956 select SYS_HAS_EARLY_PRINTK
957 select USE_OF
958 select SYS_SUPPORTS_ZBOOT
959 select SYS_SUPPORTS_ZBOOT_UART16550
960 help
961 This board is based on Netlogic XLP Processor.
962 Say Y here if you have a XLP based board.
963
964config MIPS_PARAVIRT
965 bool "Para-Virtualized guest system"
966 select CEVT_R4K
967 select CSRC_R4K
968 select DMA_COHERENT
969 select SYS_SUPPORTS_64BIT_KERNEL
970 select SYS_SUPPORTS_32BIT_KERNEL
971 select SYS_SUPPORTS_BIG_ENDIAN
972 select SYS_SUPPORTS_SMP
973 select NR_CPUS_DEFAULT_4
974 select SYS_HAS_EARLY_PRINTK
975 select SYS_HAS_CPU_MIPS32_R2
976 select SYS_HAS_CPU_MIPS64_R2
977 select SYS_HAS_CPU_CAVIUM_OCTEON
978 select HW_HAS_PCI
979 select SWAP_IO_SPACE
980 help
981 This option supports guest running under ????
982
983endchoice
984
985source "arch/mips/alchemy/Kconfig"
986source "arch/mips/ath25/Kconfig"
987source "arch/mips/ath79/Kconfig"
988source "arch/mips/bcm47xx/Kconfig"
989source "arch/mips/bcm63xx/Kconfig"
990source "arch/mips/bmips/Kconfig"
991source "arch/mips/jazz/Kconfig"
992source "arch/mips/jz4740/Kconfig"
993source "arch/mips/lantiq/Kconfig"
994source "arch/mips/lasat/Kconfig"
995source "arch/mips/pic32/Kconfig"
996source "arch/mips/pistachio/Kconfig"
997source "arch/mips/pmcs-msp71xx/Kconfig"
998source "arch/mips/ralink/Kconfig"
999source "arch/mips/sgi-ip27/Kconfig"
1000source "arch/mips/sibyte/Kconfig"
1001source "arch/mips/txx9/Kconfig"
1002source "arch/mips/vr41xx/Kconfig"
1003source "arch/mips/cavium-octeon/Kconfig"
1004source "arch/mips/loongson32/Kconfig"
1005source "arch/mips/loongson64/Kconfig"
1006source "arch/mips/netlogic/Kconfig"
1007source "arch/mips/paravirt/Kconfig"
1008source "arch/mips/xilfpga/Kconfig"
1009
1010endmenu
1011
1012config RWSEM_GENERIC_SPINLOCK
1013 bool
1014 default y
1015
1016config RWSEM_XCHGADD_ALGORITHM
1017 bool
1018
1019config ARCH_HAS_ILOG2_U32
1020 bool
1021 default n
1022
1023config ARCH_HAS_ILOG2_U64
1024 bool
1025 default n
1026
1027config GENERIC_HWEIGHT
1028 bool
1029 default y
1030
1031config GENERIC_CALIBRATE_DELAY
1032 bool
1033 default y
1034
1035config SCHED_OMIT_FRAME_POINTER
1036 bool
1037 default y
1038
1039#
1040# Select some configuration options automatically based on user selections.
1041#
1042config FW_ARC
1043 bool
1044
1045config ARCH_MAY_HAVE_PC_FDC
1046 bool
1047
1048config BOOT_RAW
1049 bool
1050
1051config CEVT_BCM1480
1052 bool
1053
1054config CEVT_DS1287
1055 bool
1056
1057config CEVT_GT641XX
1058 bool
1059
1060config CEVT_R4K
1061 bool
1062
1063config CEVT_SB1250
1064 bool
1065
1066config CEVT_TXX9
1067 bool
1068
1069config CSRC_BCM1480
1070 bool
1071
1072config CSRC_IOASIC
1073 bool
1074
1075config CSRC_R4K
1076 bool
1077
1078config CSRC_SB1250
1079 bool
1080
1081config MIPS_CLOCK_VSYSCALL
1082 def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1083
1084config GPIO_TXX9
1085 select ARCH_REQUIRE_GPIOLIB
1086 bool
1087
1088config FW_CFE
1089 bool
1090
1091config ARCH_DMA_ADDR_T_64BIT
1092 def_bool (HIGHMEM && ARCH_PHYS_ADDR_T_64BIT) || 64BIT
1093
1094config ARCH_SUPPORTS_UPROBES
1095 bool
1096
1097config DMA_MAYBE_COHERENT
1098 select DMA_NONCOHERENT
1099 bool
1100
1101config DMA_COHERENT
1102 bool
1103
1104config DMA_NONCOHERENT
1105 bool
1106 select NEED_DMA_MAP_STATE
1107
1108config NEED_DMA_MAP_STATE
1109 bool
1110
1111config SYS_HAS_EARLY_PRINTK
1112 bool
1113
1114config HOTPLUG_CPU
1115 bool "Support for hot-pluggable CPUs"
1116 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
1117 help
1118 Say Y here to allow turning CPUs off and on. CPUs can be
1119 controlled through /sys/devices/system/cpu.
1120 (Note: power management support will enable this option
1121 automatically on SMP systems. )
1122 Say N if you want to disable CPU hotplug.
1123
1124config SYS_SUPPORTS_HOTPLUG_CPU
1125 bool
1126
1127config MIPS_BONITO64
1128 bool
1129
1130config MIPS_MSC
1131 bool
1132
1133config MIPS_NILE4
1134 bool
1135
1136config SYNC_R4K
1137 bool
1138
1139config MIPS_MACHINE
1140 def_bool n
1141
1142config NO_IOPORT_MAP
1143 def_bool n
1144
1145config GENERIC_CSUM
1146 bool
1147
1148config GENERIC_ISA_DMA
1149 bool
1150 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1151 select ISA_DMA_API
1152
1153config GENERIC_ISA_DMA_SUPPORT_BROKEN
1154 bool
1155 select GENERIC_ISA_DMA
1156
1157config ISA_DMA_API
1158 bool
1159
1160config HOLES_IN_ZONE
1161 bool
1162
1163config SYS_SUPPORTS_RELOCATABLE
1164 bool
1165 help
1166 Selected if the platform supports relocating the kernel.
1167 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1168 to allow access to command line and entropy sources.
1169
1170#
1171# Endianness selection. Sufficiently obscure so many users don't know what to
1172# answer,so we try hard to limit the available choices. Also the use of a
1173# choice statement should be more obvious to the user.
1174#
1175choice
1176 prompt "Endianness selection"
1177 help
1178 Some MIPS machines can be configured for either little or big endian
1179 byte order. These modes require different kernels and a different
1180 Linux distribution. In general there is one preferred byteorder for a
1181 particular system but some systems are just as commonly used in the
1182 one or the other endianness.
1183
1184config CPU_BIG_ENDIAN
1185 bool "Big endian"
1186 depends on SYS_SUPPORTS_BIG_ENDIAN
1187
1188config CPU_LITTLE_ENDIAN
1189 bool "Little endian"
1190 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1191
1192endchoice
1193
1194config EXPORT_UASM
1195 bool
1196
1197config SYS_SUPPORTS_APM_EMULATION
1198 bool
1199
1200config SYS_SUPPORTS_BIG_ENDIAN
1201 bool
1202
1203config SYS_SUPPORTS_LITTLE_ENDIAN
1204 bool
1205
1206config SYS_SUPPORTS_HUGETLBFS
1207 bool
1208 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1209 default y
1210
1211config MIPS_HUGE_TLB_SUPPORT
1212 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1213
1214config IRQ_CPU_RM7K
1215 bool
1216
1217config IRQ_MSP_SLP
1218 bool
1219
1220config IRQ_MSP_CIC
1221 bool
1222
1223config IRQ_TXX9
1224 bool
1225
1226config IRQ_GT641XX
1227 bool
1228
1229config PCI_GT64XXX_PCI0
1230 bool
1231
1232config NO_EXCEPT_FILL
1233 bool
1234
1235config SOC_EMMA2RH
1236 bool
1237 select CEVT_R4K
1238 select CSRC_R4K
1239 select DMA_NONCOHERENT
1240 select IRQ_MIPS_CPU
1241 select SWAP_IO_SPACE
1242 select SYS_HAS_CPU_R5500
1243 select SYS_SUPPORTS_32BIT_KERNEL
1244 select SYS_SUPPORTS_64BIT_KERNEL
1245 select SYS_SUPPORTS_BIG_ENDIAN
1246
1247config SOC_PNX833X
1248 bool
1249 select CEVT_R4K
1250 select CSRC_R4K
1251 select IRQ_MIPS_CPU
1252 select DMA_NONCOHERENT
1253 select SYS_HAS_CPU_MIPS32_R2
1254 select SYS_SUPPORTS_32BIT_KERNEL
1255 select SYS_SUPPORTS_LITTLE_ENDIAN
1256 select SYS_SUPPORTS_BIG_ENDIAN
1257 select SYS_SUPPORTS_MIPS16
1258 select CPU_MIPSR2_IRQ_VI
1259
1260config SOC_PNX8335
1261 bool
1262 select SOC_PNX833X
1263
1264config MIPS_SPRAM
1265 bool
1266
1267config SWAP_IO_SPACE
1268 bool
1269
1270config SGI_HAS_INDYDOG
1271 bool
1272
1273config SGI_HAS_HAL2
1274 bool
1275
1276config SGI_HAS_SEEQ
1277 bool
1278
1279config SGI_HAS_WD93
1280 bool
1281
1282config SGI_HAS_ZILOG
1283 bool
1284
1285config SGI_HAS_I8042
1286 bool
1287
1288config DEFAULT_SGI_PARTITION
1289 bool
1290
1291config FW_ARC32
1292 bool
1293
1294config FW_SNIPROM
1295 bool
1296
1297config BOOT_ELF32
1298 bool
1299
1300config MIPS_L1_CACHE_SHIFT_4
1301 bool
1302
1303config MIPS_L1_CACHE_SHIFT_5
1304 bool
1305
1306config MIPS_L1_CACHE_SHIFT_6
1307 bool
1308
1309config MIPS_L1_CACHE_SHIFT_7
1310 bool
1311
1312config MIPS_L1_CACHE_SHIFT
1313 int
1314 default "7" if MIPS_L1_CACHE_SHIFT_7
1315 default "6" if MIPS_L1_CACHE_SHIFT_6
1316 default "5" if MIPS_L1_CACHE_SHIFT_5
1317 default "4" if MIPS_L1_CACHE_SHIFT_4
1318 default "5"
1319
1320config HAVE_STD_PC_SERIAL_PORT
1321 bool
1322
1323config ARC_CONSOLE
1324 bool "ARC console support"
1325 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1326
1327config ARC_MEMORY
1328 bool
1329 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1330 default y
1331
1332config ARC_PROMLIB
1333 bool
1334 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1335 default y
1336
1337config FW_ARC64
1338 bool
1339
1340config BOOT_ELF64
1341 bool
1342
1343menu "CPU selection"
1344
1345choice
1346 prompt "CPU type"
1347 default CPU_R4X00
1348
1349config CPU_LOONGSON3
1350 bool "Loongson 3 CPU"
1351 depends on SYS_HAS_CPU_LOONGSON3
1352 select CPU_SUPPORTS_64BIT_KERNEL
1353 select CPU_SUPPORTS_HIGHMEM
1354 select CPU_SUPPORTS_HUGEPAGES
1355 select WEAK_ORDERING
1356 select WEAK_REORDERING_BEYOND_LLSC
1357 select MIPS_PGD_C0_CONTEXT
1358 select ARCH_REQUIRE_GPIOLIB
1359 help
1360 The Loongson 3 processor implements the MIPS64R2 instruction
1361 set with many extensions.
1362
1363config LOONGSON3_ENHANCEMENT
1364 bool "New Loongson 3 CPU Enhancements"
1365 default n
1366 select CPU_MIPSR2
1367 select CPU_HAS_PREFETCH
1368 depends on CPU_LOONGSON3
1369 help
1370 New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A
1371 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1372 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User
1373 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1374 Fast TLB refill support, etc.
1375
1376 This option enable those enhancements which are not probed at run
1377 time. If you want a generic kernel to run on all Loongson 3 machines,
1378 please say 'N' here. If you want a high-performance kernel to run on
1379 new Loongson 3 machines only, please say 'Y' here.
1380
1381config CPU_LOONGSON2E
1382 bool "Loongson 2E"
1383 depends on SYS_HAS_CPU_LOONGSON2E
1384 select CPU_LOONGSON2
1385 help
1386 The Loongson 2E processor implements the MIPS III instruction set
1387 with many extensions.
1388
1389 It has an internal FPGA northbridge, which is compatible to
1390 bonito64.
1391
1392config CPU_LOONGSON2F
1393 bool "Loongson 2F"
1394 depends on SYS_HAS_CPU_LOONGSON2F
1395 select CPU_LOONGSON2
1396 select ARCH_REQUIRE_GPIOLIB
1397 help
1398 The Loongson 2F processor implements the MIPS III instruction set
1399 with many extensions.
1400
1401 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1402 have a similar programming interface with FPGA northbridge used in
1403 Loongson2E.
1404
1405config CPU_LOONGSON1B
1406 bool "Loongson 1B"
1407 depends on SYS_HAS_CPU_LOONGSON1B
1408 select CPU_LOONGSON1
1409 select ARCH_WANT_OPTIONAL_GPIOLIB
1410 select LEDS_GPIO_REGISTER
1411 help
1412 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1413 release 2 instruction set.
1414
1415config CPU_MIPS32_R1
1416 bool "MIPS32 Release 1"
1417 depends on SYS_HAS_CPU_MIPS32_R1
1418 select CPU_HAS_PREFETCH
1419 select CPU_SUPPORTS_32BIT_KERNEL
1420 select CPU_SUPPORTS_HIGHMEM
1421 help
1422 Choose this option to build a kernel for release 1 or later of the
1423 MIPS32 architecture. Most modern embedded systems with a 32-bit
1424 MIPS processor are based on a MIPS32 processor. If you know the
1425 specific type of processor in your system, choose those that one
1426 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1427 Release 2 of the MIPS32 architecture is available since several
1428 years so chances are you even have a MIPS32 Release 2 processor
1429 in which case you should choose CPU_MIPS32_R2 instead for better
1430 performance.
1431
1432config CPU_MIPS32_R2
1433 bool "MIPS32 Release 2"
1434 depends on SYS_HAS_CPU_MIPS32_R2
1435 select CPU_HAS_PREFETCH
1436 select CPU_SUPPORTS_32BIT_KERNEL
1437 select CPU_SUPPORTS_HIGHMEM
1438 select CPU_SUPPORTS_MSA
1439 select HAVE_KVM
1440 help
1441 Choose this option to build a kernel for release 2 or later of the
1442 MIPS32 architecture. Most modern embedded systems with a 32-bit
1443 MIPS processor are based on a MIPS32 processor. If you know the
1444 specific type of processor in your system, choose those that one
1445 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1446
1447config CPU_MIPS32_R6
1448 bool "MIPS32 Release 6"
1449 depends on SYS_HAS_CPU_MIPS32_R6
1450 select CPU_HAS_PREFETCH
1451 select CPU_SUPPORTS_32BIT_KERNEL
1452 select CPU_SUPPORTS_HIGHMEM
1453 select CPU_SUPPORTS_MSA
1454 select GENERIC_CSUM
1455 select HAVE_KVM
1456 select MIPS_O32_FP64_SUPPORT
1457 help
1458 Choose this option to build a kernel for release 6 or later of the
1459 MIPS32 architecture. New MIPS processors, starting with the Warrior
1460 family, are based on a MIPS32r6 processor. If you own an older
1461 processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1462
1463config CPU_MIPS64_R1
1464 bool "MIPS64 Release 1"
1465 depends on SYS_HAS_CPU_MIPS64_R1
1466 select CPU_HAS_PREFETCH
1467 select CPU_SUPPORTS_32BIT_KERNEL
1468 select CPU_SUPPORTS_64BIT_KERNEL
1469 select CPU_SUPPORTS_HIGHMEM
1470 select CPU_SUPPORTS_HUGEPAGES
1471 help
1472 Choose this option to build a kernel for release 1 or later of the
1473 MIPS64 architecture. Many modern embedded systems with a 64-bit
1474 MIPS processor are based on a MIPS64 processor. If you know the
1475 specific type of processor in your system, choose those that one
1476 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1477 Release 2 of the MIPS64 architecture is available since several
1478 years so chances are you even have a MIPS64 Release 2 processor
1479 in which case you should choose CPU_MIPS64_R2 instead for better
1480 performance.
1481
1482config CPU_MIPS64_R2
1483 bool "MIPS64 Release 2"
1484 depends on SYS_HAS_CPU_MIPS64_R2
1485 select CPU_HAS_PREFETCH
1486 select CPU_SUPPORTS_32BIT_KERNEL
1487 select CPU_SUPPORTS_64BIT_KERNEL
1488 select CPU_SUPPORTS_HIGHMEM
1489 select CPU_SUPPORTS_HUGEPAGES
1490 select CPU_SUPPORTS_MSA
1491 help
1492 Choose this option to build a kernel for release 2 or later of the
1493 MIPS64 architecture. Many modern embedded systems with a 64-bit
1494 MIPS processor are based on a MIPS64 processor. If you know the
1495 specific type of processor in your system, choose those that one
1496 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1497
1498config CPU_MIPS64_R6
1499 bool "MIPS64 Release 6"
1500 depends on SYS_HAS_CPU_MIPS64_R6
1501 select CPU_HAS_PREFETCH
1502 select CPU_SUPPORTS_32BIT_KERNEL
1503 select CPU_SUPPORTS_64BIT_KERNEL
1504 select CPU_SUPPORTS_HIGHMEM
1505 select CPU_SUPPORTS_MSA
1506 select GENERIC_CSUM
1507 select MIPS_O32_FP64_SUPPORT if MIPS32_O32
1508 help
1509 Choose this option to build a kernel for release 6 or later of the
1510 MIPS64 architecture. New MIPS processors, starting with the Warrior
1511 family, are based on a MIPS64r6 processor. If you own an older
1512 processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1513
1514config CPU_R3000
1515 bool "R3000"
1516 depends on SYS_HAS_CPU_R3000
1517 select CPU_HAS_WB
1518 select CPU_SUPPORTS_32BIT_KERNEL
1519 select CPU_SUPPORTS_HIGHMEM
1520 help
1521 Please make sure to pick the right CPU type. Linux/MIPS is not
1522 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1523 *not* work on R4000 machines and vice versa. However, since most
1524 of the supported machines have an R4000 (or similar) CPU, R4x00
1525 might be a safe bet. If the resulting kernel does not work,
1526 try to recompile with R3000.
1527
1528config CPU_TX39XX
1529 bool "R39XX"
1530 depends on SYS_HAS_CPU_TX39XX
1531 select CPU_SUPPORTS_32BIT_KERNEL
1532
1533config CPU_VR41XX
1534 bool "R41xx"
1535 depends on SYS_HAS_CPU_VR41XX
1536 select CPU_SUPPORTS_32BIT_KERNEL
1537 select CPU_SUPPORTS_64BIT_KERNEL
1538 help
1539 The options selects support for the NEC VR4100 series of processors.
1540 Only choose this option if you have one of these processors as a
1541 kernel built with this option will not run on any other type of
1542 processor or vice versa.
1543
1544config CPU_R4300
1545 bool "R4300"
1546 depends on SYS_HAS_CPU_R4300
1547 select CPU_SUPPORTS_32BIT_KERNEL
1548 select CPU_SUPPORTS_64BIT_KERNEL
1549 help
1550 MIPS Technologies R4300-series processors.
1551
1552config CPU_R4X00
1553 bool "R4x00"
1554 depends on SYS_HAS_CPU_R4X00
1555 select CPU_SUPPORTS_32BIT_KERNEL
1556 select CPU_SUPPORTS_64BIT_KERNEL
1557 select CPU_SUPPORTS_HUGEPAGES
1558 help
1559 MIPS Technologies R4000-series processors other than 4300, including
1560 the R4000, R4400, R4600, and 4700.
1561
1562config CPU_TX49XX
1563 bool "R49XX"
1564 depends on SYS_HAS_CPU_TX49XX
1565 select CPU_HAS_PREFETCH
1566 select CPU_SUPPORTS_32BIT_KERNEL
1567 select CPU_SUPPORTS_64BIT_KERNEL
1568 select CPU_SUPPORTS_HUGEPAGES
1569
1570config CPU_R5000
1571 bool "R5000"
1572 depends on SYS_HAS_CPU_R5000
1573 select CPU_SUPPORTS_32BIT_KERNEL
1574 select CPU_SUPPORTS_64BIT_KERNEL
1575 select CPU_SUPPORTS_HUGEPAGES
1576 help
1577 MIPS Technologies R5000-series processors other than the Nevada.
1578
1579config CPU_R5432
1580 bool "R5432"
1581 depends on SYS_HAS_CPU_R5432
1582 select CPU_SUPPORTS_32BIT_KERNEL
1583 select CPU_SUPPORTS_64BIT_KERNEL
1584 select CPU_SUPPORTS_HUGEPAGES
1585
1586config CPU_R5500
1587 bool "R5500"
1588 depends on SYS_HAS_CPU_R5500
1589 select CPU_SUPPORTS_32BIT_KERNEL
1590 select CPU_SUPPORTS_64BIT_KERNEL
1591 select CPU_SUPPORTS_HUGEPAGES
1592 help
1593 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1594 instruction set.
1595
1596config CPU_R6000
1597 bool "R6000"
1598 depends on SYS_HAS_CPU_R6000
1599 select CPU_SUPPORTS_32BIT_KERNEL
1600 help
1601 MIPS Technologies R6000 and R6000A series processors. Note these
1602 processors are extremely rare and the support for them is incomplete.
1603
1604config CPU_NEVADA
1605 bool "RM52xx"
1606 depends on SYS_HAS_CPU_NEVADA
1607 select CPU_SUPPORTS_32BIT_KERNEL
1608 select CPU_SUPPORTS_64BIT_KERNEL
1609 select CPU_SUPPORTS_HUGEPAGES
1610 help
1611 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1612
1613config CPU_R8000
1614 bool "R8000"
1615 depends on SYS_HAS_CPU_R8000
1616 select CPU_HAS_PREFETCH
1617 select CPU_SUPPORTS_64BIT_KERNEL
1618 help
1619 MIPS Technologies R8000 processors. Note these processors are
1620 uncommon and the support for them is incomplete.
1621
1622config CPU_R10000
1623 bool "R10000"
1624 depends on SYS_HAS_CPU_R10000
1625 select CPU_HAS_PREFETCH
1626 select CPU_SUPPORTS_32BIT_KERNEL
1627 select CPU_SUPPORTS_64BIT_KERNEL
1628 select CPU_SUPPORTS_HIGHMEM
1629 select CPU_SUPPORTS_HUGEPAGES
1630 help
1631 MIPS Technologies R10000-series processors.
1632
1633config CPU_RM7000
1634 bool "RM7000"
1635 depends on SYS_HAS_CPU_RM7000
1636 select CPU_HAS_PREFETCH
1637 select CPU_SUPPORTS_32BIT_KERNEL
1638 select CPU_SUPPORTS_64BIT_KERNEL
1639 select CPU_SUPPORTS_HIGHMEM
1640 select CPU_SUPPORTS_HUGEPAGES
1641
1642config CPU_SB1
1643 bool "SB1"
1644 depends on SYS_HAS_CPU_SB1
1645 select CPU_SUPPORTS_32BIT_KERNEL
1646 select CPU_SUPPORTS_64BIT_KERNEL
1647 select CPU_SUPPORTS_HIGHMEM
1648 select CPU_SUPPORTS_HUGEPAGES
1649 select WEAK_ORDERING
1650
1651config CPU_CAVIUM_OCTEON
1652 bool "Cavium Octeon processor"
1653 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1654 select CPU_HAS_PREFETCH
1655 select CPU_SUPPORTS_64BIT_KERNEL
1656 select WEAK_ORDERING
1657 select CPU_SUPPORTS_HIGHMEM
1658 select CPU_SUPPORTS_HUGEPAGES
1659 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1660 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1661 select MIPS_L1_CACHE_SHIFT_7
1662 help
1663 The Cavium Octeon processor is a highly integrated chip containing
1664 many ethernet hardware widgets for networking tasks. The processor
1665 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1666 Full details can be found at http://www.caviumnetworks.com.
1667
1668config CPU_BMIPS
1669 bool "Broadcom BMIPS"
1670 depends on SYS_HAS_CPU_BMIPS
1671 select CPU_MIPS32
1672 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1673 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1674 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1675 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1676 select CPU_SUPPORTS_32BIT_KERNEL
1677 select DMA_NONCOHERENT
1678 select IRQ_MIPS_CPU
1679 select SWAP_IO_SPACE
1680 select WEAK_ORDERING
1681 select CPU_SUPPORTS_HIGHMEM
1682 select CPU_HAS_PREFETCH
1683 help
1684 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1685
1686config CPU_XLR
1687 bool "Netlogic XLR SoC"
1688 depends on SYS_HAS_CPU_XLR
1689 select CPU_SUPPORTS_32BIT_KERNEL
1690 select CPU_SUPPORTS_64BIT_KERNEL
1691 select CPU_SUPPORTS_HIGHMEM
1692 select CPU_SUPPORTS_HUGEPAGES
1693 select WEAK_ORDERING
1694 select WEAK_REORDERING_BEYOND_LLSC
1695 help
1696 Netlogic Microsystems XLR/XLS processors.
1697
1698config CPU_XLP
1699 bool "Netlogic XLP SoC"
1700 depends on SYS_HAS_CPU_XLP
1701 select CPU_SUPPORTS_32BIT_KERNEL
1702 select CPU_SUPPORTS_64BIT_KERNEL
1703 select CPU_SUPPORTS_HIGHMEM
1704 select WEAK_ORDERING
1705 select WEAK_REORDERING_BEYOND_LLSC
1706 select CPU_HAS_PREFETCH
1707 select CPU_MIPSR2
1708 select CPU_SUPPORTS_HUGEPAGES
1709 select MIPS_ASID_BITS_VARIABLE
1710 help
1711 Netlogic Microsystems XLP processors.
1712endchoice
1713
1714config CPU_MIPS32_3_5_FEATURES
1715 bool "MIPS32 Release 3.5 Features"
1716 depends on SYS_HAS_CPU_MIPS32_R3_5
1717 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1718 help
1719 Choose this option to build a kernel for release 2 or later of the
1720 MIPS32 architecture including features from the 3.5 release such as
1721 support for Enhanced Virtual Addressing (EVA).
1722
1723config CPU_MIPS32_3_5_EVA
1724 bool "Enhanced Virtual Addressing (EVA)"
1725 depends on CPU_MIPS32_3_5_FEATURES
1726 select EVA
1727 default y
1728 help
1729 Choose this option if you want to enable the Enhanced Virtual
1730 Addressing (EVA) on your MIPS32 core (such as proAptiv).
1731 One of its primary benefits is an increase in the maximum size
1732 of lowmem (up to 3GB). If unsure, say 'N' here.
1733
1734config CPU_MIPS32_R5_FEATURES
1735 bool "MIPS32 Release 5 Features"
1736 depends on SYS_HAS_CPU_MIPS32_R5
1737 depends on CPU_MIPS32_R2
1738 help
1739 Choose this option to build a kernel for release 2 or later of the
1740 MIPS32 architecture including features from release 5 such as
1741 support for Extended Physical Addressing (XPA).
1742
1743config CPU_MIPS32_R5_XPA
1744 bool "Extended Physical Addressing (XPA)"
1745 depends on CPU_MIPS32_R5_FEATURES
1746 depends on !EVA
1747 depends on !PAGE_SIZE_4KB
1748 depends on SYS_SUPPORTS_HIGHMEM
1749 select XPA
1750 select HIGHMEM
1751 select ARCH_PHYS_ADDR_T_64BIT
1752 default n
1753 help
1754 Choose this option if you want to enable the Extended Physical
1755 Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1756 benefit is to increase physical addressing equal to or greater
1757 than 40 bits. Note that this has the side effect of turning on
1758 64-bit addressing which in turn makes the PTEs 64-bit in size.
1759 If unsure, say 'N' here.
1760
1761if CPU_LOONGSON2F
1762config CPU_NOP_WORKAROUNDS
1763 bool
1764
1765config CPU_JUMP_WORKAROUNDS
1766 bool
1767
1768config CPU_LOONGSON2F_WORKAROUNDS
1769 bool "Loongson 2F Workarounds"
1770 default y
1771 select CPU_NOP_WORKAROUNDS
1772 select CPU_JUMP_WORKAROUNDS
1773 help
1774 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1775 require workarounds. Without workarounds the system may hang
1776 unexpectedly. For more information please refer to the gas
1777 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1778
1779 Loongson 2F03 and later have fixed these issues and no workarounds
1780 are needed. The workarounds have no significant side effect on them
1781 but may decrease the performance of the system so this option should
1782 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1783 systems.
1784
1785 If unsure, please say Y.
1786endif # CPU_LOONGSON2F
1787
1788config SYS_SUPPORTS_ZBOOT
1789 bool
1790 select HAVE_KERNEL_GZIP
1791 select HAVE_KERNEL_BZIP2
1792 select HAVE_KERNEL_LZ4
1793 select HAVE_KERNEL_LZMA
1794 select HAVE_KERNEL_LZO
1795 select HAVE_KERNEL_XZ
1796
1797config SYS_SUPPORTS_ZBOOT_UART16550
1798 bool
1799 select SYS_SUPPORTS_ZBOOT
1800
1801config SYS_SUPPORTS_ZBOOT_UART_PROM
1802 bool
1803 select SYS_SUPPORTS_ZBOOT
1804
1805config CPU_LOONGSON2
1806 bool
1807 select CPU_SUPPORTS_32BIT_KERNEL
1808 select CPU_SUPPORTS_64BIT_KERNEL
1809 select CPU_SUPPORTS_HIGHMEM
1810 select CPU_SUPPORTS_HUGEPAGES
1811
1812config CPU_LOONGSON1
1813 bool
1814 select CPU_MIPS32
1815 select CPU_MIPSR2
1816 select CPU_HAS_PREFETCH
1817 select CPU_SUPPORTS_32BIT_KERNEL
1818 select CPU_SUPPORTS_HIGHMEM
1819 select CPU_SUPPORTS_CPUFREQ
1820
1821config CPU_BMIPS32_3300
1822 select SMP_UP if SMP
1823 bool
1824
1825config CPU_BMIPS4350
1826 bool
1827 select SYS_SUPPORTS_SMP
1828 select SYS_SUPPORTS_HOTPLUG_CPU
1829
1830config CPU_BMIPS4380
1831 bool
1832 select MIPS_L1_CACHE_SHIFT_6
1833 select SYS_SUPPORTS_SMP
1834 select SYS_SUPPORTS_HOTPLUG_CPU
1835 select CPU_HAS_RIXI
1836
1837config CPU_BMIPS5000
1838 bool
1839 select MIPS_CPU_SCACHE
1840 select MIPS_L1_CACHE_SHIFT_7
1841 select SYS_SUPPORTS_SMP
1842 select SYS_SUPPORTS_HOTPLUG_CPU
1843 select CPU_HAS_RIXI
1844
1845config SYS_HAS_CPU_LOONGSON3
1846 bool
1847 select CPU_SUPPORTS_CPUFREQ
1848 select CPU_HAS_RIXI
1849
1850config SYS_HAS_CPU_LOONGSON2E
1851 bool
1852
1853config SYS_HAS_CPU_LOONGSON2F
1854 bool
1855 select CPU_SUPPORTS_CPUFREQ
1856 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1857 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1858
1859config SYS_HAS_CPU_LOONGSON1B
1860 bool
1861
1862config SYS_HAS_CPU_MIPS32_R1
1863 bool
1864
1865config SYS_HAS_CPU_MIPS32_R2
1866 bool
1867
1868config SYS_HAS_CPU_MIPS32_R3_5
1869 bool
1870
1871config SYS_HAS_CPU_MIPS32_R5
1872 bool
1873
1874config SYS_HAS_CPU_MIPS32_R6
1875 bool
1876
1877config SYS_HAS_CPU_MIPS64_R1
1878 bool
1879
1880config SYS_HAS_CPU_MIPS64_R2
1881 bool
1882
1883config SYS_HAS_CPU_MIPS64_R6
1884 bool
1885
1886config SYS_HAS_CPU_R3000
1887 bool
1888
1889config SYS_HAS_CPU_TX39XX
1890 bool
1891
1892config SYS_HAS_CPU_VR41XX
1893 bool
1894
1895config SYS_HAS_CPU_R4300
1896 bool
1897
1898config SYS_HAS_CPU_R4X00
1899 bool
1900
1901config SYS_HAS_CPU_TX49XX
1902 bool
1903
1904config SYS_HAS_CPU_R5000
1905 bool
1906
1907config SYS_HAS_CPU_R5432
1908 bool
1909
1910config SYS_HAS_CPU_R5500
1911 bool
1912
1913config SYS_HAS_CPU_R6000
1914 bool
1915
1916config SYS_HAS_CPU_NEVADA
1917 bool
1918
1919config SYS_HAS_CPU_R8000
1920 bool
1921
1922config SYS_HAS_CPU_R10000
1923 bool
1924
1925config SYS_HAS_CPU_RM7000
1926 bool
1927
1928config SYS_HAS_CPU_SB1
1929 bool
1930
1931config SYS_HAS_CPU_CAVIUM_OCTEON
1932 bool
1933
1934config SYS_HAS_CPU_BMIPS
1935 bool
1936
1937config SYS_HAS_CPU_BMIPS32_3300
1938 bool
1939 select SYS_HAS_CPU_BMIPS
1940
1941config SYS_HAS_CPU_BMIPS4350
1942 bool
1943 select SYS_HAS_CPU_BMIPS
1944
1945config SYS_HAS_CPU_BMIPS4380
1946 bool
1947 select SYS_HAS_CPU_BMIPS
1948
1949config SYS_HAS_CPU_BMIPS5000
1950 bool
1951 select SYS_HAS_CPU_BMIPS
1952
1953config SYS_HAS_CPU_XLR
1954 bool
1955
1956config SYS_HAS_CPU_XLP
1957 bool
1958
1959config MIPS_MALTA_PM
1960 depends on MIPS_MALTA
1961 depends on PCI
1962 bool
1963 default y
1964
1965#
1966# CPU may reorder R->R, R->W, W->R, W->W
1967# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1968#
1969config WEAK_ORDERING
1970 bool
1971
1972#
1973# CPU may reorder reads and writes beyond LL/SC
1974# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1975#
1976config WEAK_REORDERING_BEYOND_LLSC
1977 bool
1978endmenu
1979
1980#
1981# These two indicate any level of the MIPS32 and MIPS64 architecture
1982#
1983config CPU_MIPS32
1984 bool
1985 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
1986
1987config CPU_MIPS64
1988 bool
1989 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
1990
1991#
1992# These two indicate the revision of the architecture, either Release 1 or Release 2
1993#
1994config CPU_MIPSR1
1995 bool
1996 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1997
1998config CPU_MIPSR2
1999 bool
2000 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2001 select CPU_HAS_RIXI
2002 select MIPS_SPRAM
2003
2004config CPU_MIPSR6
2005 bool
2006 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2007 select CPU_HAS_RIXI
2008 select HAVE_ARCH_BITREVERSE
2009 select MIPS_ASID_BITS_VARIABLE
2010 select MIPS_SPRAM
2011
2012config EVA
2013 bool
2014
2015config XPA
2016 bool
2017
2018config SYS_SUPPORTS_32BIT_KERNEL
2019 bool
2020config SYS_SUPPORTS_64BIT_KERNEL
2021 bool
2022config CPU_SUPPORTS_32BIT_KERNEL
2023 bool
2024config CPU_SUPPORTS_64BIT_KERNEL
2025 bool
2026config CPU_SUPPORTS_CPUFREQ
2027 bool
2028config CPU_SUPPORTS_ADDRWINCFG
2029 bool
2030config CPU_SUPPORTS_HUGEPAGES
2031 bool
2032config CPU_SUPPORTS_UNCACHED_ACCELERATED
2033 bool
2034config MIPS_PGD_C0_CONTEXT
2035 bool
2036 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
2037
2038#
2039# Set to y for ptrace access to watch registers.
2040#
2041config HARDWARE_WATCHPOINTS
2042 bool
2043 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2044
2045menu "Kernel type"
2046
2047choice
2048 prompt "Kernel code model"
2049 help
2050 You should only select this option if you have a workload that
2051 actually benefits from 64-bit processing or if your machine has
2052 large memory. You will only be presented a single option in this
2053 menu if your system does not support both 32-bit and 64-bit kernels.
2054
2055config 32BIT
2056 bool "32-bit kernel"
2057 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2058 select TRAD_SIGNALS
2059 help
2060 Select this option if you want to build a 32-bit kernel.
2061
2062config 64BIT
2063 bool "64-bit kernel"
2064 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2065 help
2066 Select this option if you want to build a 64-bit kernel.
2067
2068endchoice
2069
2070config KVM_GUEST
2071 bool "KVM Guest Kernel"
2072 depends on BROKEN_ON_SMP
2073 help
2074 Select this option if building a guest kernel for KVM (Trap & Emulate)
2075 mode.
2076
2077config KVM_GUEST_TIMER_FREQ
2078 int "Count/Compare Timer Frequency (MHz)"
2079 depends on KVM_GUEST
2080 default 100
2081 help
2082 Set this to non-zero if building a guest kernel for KVM to skip RTC
2083 emulation when determining guest CPU Frequency. Instead, the guest's
2084 timer frequency is specified directly.
2085
2086config MIPS_VA_BITS_48
2087 bool "48 bits virtual memory"
2088 depends on 64BIT
2089 help
2090 Support a maximum at least 48 bits of application virtual memory.
2091 Default is 40 bits or less, depending on the CPU.
2092 This option result in a small memory overhead for page tables.
2093 This option is only supported with 16k and 64k page sizes.
2094 If unsure, say N.
2095
2096choice
2097 prompt "Kernel page size"
2098 default PAGE_SIZE_4KB
2099
2100config PAGE_SIZE_4KB
2101 bool "4kB"
2102 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
2103 depends on !MIPS_VA_BITS_48
2104 help
2105 This option select the standard 4kB Linux page size. On some
2106 R3000-family processors this is the only available page size. Using
2107 4kB page size will minimize memory consumption and is therefore
2108 recommended for low memory systems.
2109
2110config PAGE_SIZE_8KB
2111 bool "8kB"
2112 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
2113 depends on !MIPS_VA_BITS_48
2114 help
2115 Using 8kB page size will result in higher performance kernel at
2116 the price of higher memory consumption. This option is available
2117 only on R8000 and cnMIPS processors. Note that you will need a
2118 suitable Linux distribution to support this.
2119
2120config PAGE_SIZE_16KB
2121 bool "16kB"
2122 depends on !CPU_R3000 && !CPU_TX39XX
2123 help
2124 Using 16kB page size will result in higher performance kernel at
2125 the price of higher memory consumption. This option is available on
2126 all non-R3000 family processors. Note that you will need a suitable
2127 Linux distribution to support this.
2128
2129config PAGE_SIZE_32KB
2130 bool "32kB"
2131 depends on CPU_CAVIUM_OCTEON
2132 depends on !MIPS_VA_BITS_48
2133 help
2134 Using 32kB page size will result in higher performance kernel at
2135 the price of higher memory consumption. This option is available
2136 only on cnMIPS cores. Note that you will need a suitable Linux
2137 distribution to support this.
2138
2139config PAGE_SIZE_64KB
2140 bool "64kB"
2141 depends on !CPU_R3000 && !CPU_TX39XX && !CPU_R6000
2142 help
2143 Using 64kB page size will result in higher performance kernel at
2144 the price of higher memory consumption. This option is available on
2145 all non-R3000 family processor. Not that at the time of this
2146 writing this option is still high experimental.
2147
2148endchoice
2149
2150config FORCE_MAX_ZONEORDER
2151 int "Maximum zone order"
2152 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2153 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2154 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2155 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2156 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2157 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2158 range 11 64
2159 default "11"
2160 help
2161 The kernel memory allocator divides physically contiguous memory
2162 blocks into "zones", where each zone is a power of two number of
2163 pages. This option selects the largest power of two that the kernel
2164 keeps in the memory allocator. If you need to allocate very large
2165 blocks of physically contiguous memory, then you may need to
2166 increase this value.
2167
2168 This config option is actually maximum order plus one. For example,
2169 a value of 11 means that the largest free memory block is 2^10 pages.
2170
2171 The page size is not necessarily 4KB. Keep this in mind
2172 when choosing a value for this option.
2173
2174config BOARD_SCACHE
2175 bool
2176
2177config IP22_CPU_SCACHE
2178 bool
2179 select BOARD_SCACHE
2180
2181#
2182# Support for a MIPS32 / MIPS64 style S-caches
2183#
2184config MIPS_CPU_SCACHE
2185 bool
2186 select BOARD_SCACHE
2187
2188config R5000_CPU_SCACHE
2189 bool
2190 select BOARD_SCACHE
2191
2192config RM7000_CPU_SCACHE
2193 bool
2194 select BOARD_SCACHE
2195
2196config SIBYTE_DMA_PAGEOPS
2197 bool "Use DMA to clear/copy pages"
2198 depends on CPU_SB1
2199 help
2200 Instead of using the CPU to zero and copy pages, use a Data Mover
2201 channel. These DMA channels are otherwise unused by the standard
2202 SiByte Linux port. Seems to give a small performance benefit.
2203
2204config CPU_HAS_PREFETCH
2205 bool
2206
2207config CPU_GENERIC_DUMP_TLB
2208 bool
2209 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
2210
2211config CPU_R4K_FPU
2212 bool
2213 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2214
2215config CPU_R4K_CACHE_TLB
2216 bool
2217 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2218
2219config MIPS_MT_SMP
2220 bool "MIPS MT SMP support (1 TC on each available VPE)"
2221 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6
2222 select CPU_MIPSR2_IRQ_VI
2223 select CPU_MIPSR2_IRQ_EI
2224 select SYNC_R4K
2225 select MIPS_MT
2226 select SMP
2227 select SMP_UP
2228 select SYS_SUPPORTS_SMP
2229 select SYS_SUPPORTS_SCHED_SMT
2230 select MIPS_PERF_SHARED_TC_COUNTERS
2231 help
2232 This is a kernel model which is known as SMVP. This is supported
2233 on cores with the MT ASE and uses the available VPEs to implement
2234 virtual processors which supports SMP. This is equivalent to the
2235 Intel Hyperthreading feature. For further information go to
2236 <http://www.imgtec.com/mips/mips-multithreading.asp>.
2237
2238config MIPS_MT
2239 bool
2240
2241config SCHED_SMT
2242 bool "SMT (multithreading) scheduler support"
2243 depends on SYS_SUPPORTS_SCHED_SMT
2244 default n
2245 help
2246 SMT scheduler support improves the CPU scheduler's decision making
2247 when dealing with MIPS MT enabled cores at a cost of slightly
2248 increased overhead in some places. If unsure say N here.
2249
2250config SYS_SUPPORTS_SCHED_SMT
2251 bool
2252
2253config SYS_SUPPORTS_MULTITHREADING
2254 bool
2255
2256config MIPS_MT_FPAFF
2257 bool "Dynamic FPU affinity for FP-intensive threads"
2258 default y
2259 depends on MIPS_MT_SMP
2260
2261config MIPSR2_TO_R6_EMULATOR
2262 bool "MIPS R2-to-R6 emulator"
2263 depends on CPU_MIPSR6 && !SMP
2264 default y
2265 help
2266 Choose this option if you want to run non-R6 MIPS userland code.
2267 Even if you say 'Y' here, the emulator will still be disabled by
2268 default. You can enable it using the 'mipsr2emu' kernel option.
2269 The only reason this is a build-time option is to save ~14K from the
2270 final kernel image.
2271comment "MIPS R2-to-R6 emulator is only available for UP kernels"
2272 depends on SMP && CPU_MIPSR6
2273
2274config MIPS_VPE_LOADER
2275 bool "VPE loader support."
2276 depends on SYS_SUPPORTS_MULTITHREADING && MODULES
2277 select CPU_MIPSR2_IRQ_VI
2278 select CPU_MIPSR2_IRQ_EI
2279 select MIPS_MT
2280 help
2281 Includes a loader for loading an elf relocatable object
2282 onto another VPE and running it.
2283
2284config MIPS_VPE_LOADER_CMP
2285 bool
2286 default "y"
2287 depends on MIPS_VPE_LOADER && MIPS_CMP
2288
2289config MIPS_VPE_LOADER_MT
2290 bool
2291 default "y"
2292 depends on MIPS_VPE_LOADER && !MIPS_CMP
2293
2294config MIPS_VPE_LOADER_TOM
2295 bool "Load VPE program into memory hidden from linux"
2296 depends on MIPS_VPE_LOADER
2297 default y
2298 help
2299 The loader can use memory that is present but has been hidden from
2300 Linux using the kernel command line option "mem=xxMB". It's up to
2301 you to ensure the amount you put in the option and the space your
2302 program requires is less or equal to the amount physically present.
2303
2304config MIPS_VPE_APSP_API
2305 bool "Enable support for AP/SP API (RTLX)"
2306 depends on MIPS_VPE_LOADER
2307 help
2308
2309config MIPS_VPE_APSP_API_CMP
2310 bool
2311 default "y"
2312 depends on MIPS_VPE_APSP_API && MIPS_CMP
2313
2314config MIPS_VPE_APSP_API_MT
2315 bool
2316 default "y"
2317 depends on MIPS_VPE_APSP_API && !MIPS_CMP
2318
2319config MIPS_CMP
2320 bool "MIPS CMP framework support (DEPRECATED)"
2321 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2322 select SMP
2323 select SYNC_R4K
2324 select SYS_SUPPORTS_SMP
2325 select WEAK_ORDERING
2326 default n
2327 help
2328 Select this if you are using a bootloader which implements the "CMP
2329 framework" protocol (ie. YAMON) and want your kernel to make use of
2330 its ability to start secondary CPUs.
2331
2332 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2333 instead of this.
2334
2335config MIPS_CPS
2336 bool "MIPS Coherent Processing System support"
2337 depends on SYS_SUPPORTS_MIPS_CPS
2338 select MIPS_CM
2339 select MIPS_CPC
2340 select MIPS_CPS_PM if HOTPLUG_CPU
2341 select SMP
2342 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2343 select SYS_SUPPORTS_HOTPLUG_CPU
2344 select SYS_SUPPORTS_SMP
2345 select WEAK_ORDERING
2346 help
2347 Select this if you wish to run an SMP kernel across multiple cores
2348 within a MIPS Coherent Processing System. When this option is
2349 enabled the kernel will probe for other cores and boot them with
2350 no external assistance. It is safe to enable this when hardware
2351 support is unavailable.
2352
2353config MIPS_CPS_PM
2354 depends on MIPS_CPS
2355 select MIPS_CPC
2356 bool
2357
2358config MIPS_CM
2359 bool
2360
2361config MIPS_CPC
2362 bool
2363
2364config SB1_PASS_2_WORKAROUNDS
2365 bool
2366 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2367 default y
2368
2369config SB1_PASS_2_1_WORKAROUNDS
2370 bool
2371 depends on CPU_SB1 && CPU_SB1_PASS_2
2372 default y
2373
2374
2375config ARCH_PHYS_ADDR_T_64BIT
2376 bool
2377
2378choice
2379 prompt "SmartMIPS or microMIPS ASE support"
2380
2381config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2382 bool "None"
2383 help
2384 Select this if you want neither microMIPS nor SmartMIPS support
2385
2386config CPU_HAS_SMARTMIPS
2387 depends on SYS_SUPPORTS_SMARTMIPS
2388 bool "SmartMIPS"
2389 help
2390 SmartMIPS is a extension of the MIPS32 architecture aimed at
2391 increased security at both hardware and software level for
2392 smartcards. Enabling this option will allow proper use of the
2393 SmartMIPS instructions by Linux applications. However a kernel with
2394 this option will not work on a MIPS core without SmartMIPS core. If
2395 you don't know you probably don't have SmartMIPS and should say N
2396 here.
2397
2398config CPU_MICROMIPS
2399 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2400 bool "microMIPS"
2401 help
2402 When this option is enabled the kernel will be built using the
2403 microMIPS ISA
2404
2405endchoice
2406
2407config CPU_HAS_MSA
2408 bool "Support for the MIPS SIMD Architecture"
2409 depends on CPU_SUPPORTS_MSA
2410 depends on 64BIT || MIPS_O32_FP64_SUPPORT
2411 help
2412 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2413 and a set of SIMD instructions to operate on them. When this option
2414 is enabled the kernel will support allocating & switching MSA
2415 vector register contexts. If you know that your kernel will only be
2416 running on CPUs which do not support MSA or that your userland will
2417 not be making use of it then you may wish to say N here to reduce
2418 the size & complexity of your kernel.
2419
2420 If unsure, say Y.
2421
2422config CPU_HAS_WB
2423 bool
2424
2425config XKS01
2426 bool
2427
2428config CPU_HAS_RIXI
2429 bool
2430
2431#
2432# Vectored interrupt mode is an R2 feature
2433#
2434config CPU_MIPSR2_IRQ_VI
2435 bool
2436
2437#
2438# Extended interrupt mode is an R2 feature
2439#
2440config CPU_MIPSR2_IRQ_EI
2441 bool
2442
2443config CPU_HAS_SYNC
2444 bool
2445 depends on !CPU_R3000
2446 default y
2447
2448#
2449# CPU non-features
2450#
2451config CPU_DADDI_WORKAROUNDS
2452 bool
2453
2454config CPU_R4000_WORKAROUNDS
2455 bool
2456 select CPU_R4400_WORKAROUNDS
2457
2458config CPU_R4400_WORKAROUNDS
2459 bool
2460
2461config MIPS_ASID_SHIFT
2462 int
2463 default 6 if CPU_R3000 || CPU_TX39XX
2464 default 4 if CPU_R8000
2465 default 0
2466
2467config MIPS_ASID_BITS
2468 int
2469 default 0 if MIPS_ASID_BITS_VARIABLE
2470 default 6 if CPU_R3000 || CPU_TX39XX
2471 default 8
2472
2473config MIPS_ASID_BITS_VARIABLE
2474 bool
2475
2476#
2477# - Highmem only makes sense for the 32-bit kernel.
2478# - The current highmem code will only work properly on physically indexed
2479# caches such as R3000, SB1, R7000 or those that look like they're virtually
2480# indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2481# moment we protect the user and offer the highmem option only on machines
2482# where it's known to be safe. This will not offer highmem on a few systems
2483# such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2484# indexed CPUs but we're playing safe.
2485# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2486# know they might have memory configurations that could make use of highmem
2487# support.
2488#
2489config HIGHMEM
2490 bool "High Memory Support"
2491 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2492
2493config CPU_SUPPORTS_HIGHMEM
2494 bool
2495
2496config SYS_SUPPORTS_HIGHMEM
2497 bool
2498
2499config SYS_SUPPORTS_SMARTMIPS
2500 bool
2501
2502config SYS_SUPPORTS_MICROMIPS
2503 bool
2504
2505config SYS_SUPPORTS_MIPS16
2506 bool
2507 help
2508 This option must be set if a kernel might be executed on a MIPS16-
2509 enabled CPU even if MIPS16 is not actually being used. In other
2510 words, it makes the kernel MIPS16-tolerant.
2511
2512config CPU_SUPPORTS_MSA
2513 bool
2514
2515config ARCH_FLATMEM_ENABLE
2516 def_bool y
2517 depends on !NUMA && !CPU_LOONGSON2
2518
2519config ARCH_DISCONTIGMEM_ENABLE
2520 bool
2521 default y if SGI_IP27
2522 help
2523 Say Y to support efficient handling of discontiguous physical memory,
2524 for architectures which are either NUMA (Non-Uniform Memory Access)
2525 or have huge holes in the physical address space for other reasons.
2526 See <file:Documentation/vm/numa> for more.
2527
2528config ARCH_SPARSEMEM_ENABLE
2529 bool
2530 select SPARSEMEM_STATIC
2531
2532config NUMA
2533 bool "NUMA Support"
2534 depends on SYS_SUPPORTS_NUMA
2535 help
2536 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2537 Access). This option improves performance on systems with more
2538 than two nodes; on two node systems it is generally better to
2539 leave it disabled; on single node systems disable this option
2540 disabled.
2541
2542config SYS_SUPPORTS_NUMA
2543 bool
2544
2545config RELOCATABLE
2546 bool "Relocatable kernel"
2547 depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6)
2548 help
2549 This builds a kernel image that retains relocation information
2550 so it can be loaded someplace besides the default 1MB.
2551 The relocations make the kernel binary about 15% larger,
2552 but are discarded at runtime
2553
2554config RELOCATION_TABLE_SIZE
2555 hex "Relocation table size"
2556 depends on RELOCATABLE
2557 range 0x0 0x01000000
2558 default "0x00100000"
2559 ---help---
2560 A table of relocation data will be appended to the kernel binary
2561 and parsed at boot to fix up the relocated kernel.
2562
2563 This option allows the amount of space reserved for the table to be
2564 adjusted, although the default of 1Mb should be ok in most cases.
2565
2566 The build will fail and a valid size suggested if this is too small.
2567
2568 If unsure, leave at the default value.
2569
2570config RANDOMIZE_BASE
2571 bool "Randomize the address of the kernel image"
2572 depends on RELOCATABLE
2573 ---help---
2574 Randomizes the physical and virtual address at which the
2575 kernel image is loaded, as a security feature that
2576 deters exploit attempts relying on knowledge of the location
2577 of kernel internals.
2578
2579 Entropy is generated using any coprocessor 0 registers available.
2580
2581 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2582
2583 If unsure, say N.
2584
2585config RANDOMIZE_BASE_MAX_OFFSET
2586 hex "Maximum kASLR offset" if EXPERT
2587 depends on RANDOMIZE_BASE
2588 range 0x0 0x40000000 if EVA || 64BIT
2589 range 0x0 0x08000000
2590 default "0x01000000"
2591 ---help---
2592 When kASLR is active, this provides the maximum offset that will
2593 be applied to the kernel image. It should be set according to the
2594 amount of physical RAM available in the target system minus
2595 PHYSICAL_START and must be a power of 2.
2596
2597 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2598 EVA or 64-bit. The default is 16Mb.
2599
2600config NODES_SHIFT
2601 int
2602 default "6"
2603 depends on NEED_MULTIPLE_NODES
2604
2605config HW_PERF_EVENTS
2606 bool "Enable hardware performance counter support for perf events"
2607 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2608 default y
2609 help
2610 Enable hardware performance counter support for perf events. If
2611 disabled, perf events will use software events only.
2612
2613source "mm/Kconfig"
2614
2615config SMP
2616 bool "Multi-Processing support"
2617 depends on SYS_SUPPORTS_SMP
2618 help
2619 This enables support for systems with more than one CPU. If you have
2620 a system with only one CPU, say N. If you have a system with more
2621 than one CPU, say Y.
2622
2623 If you say N here, the kernel will run on uni- and multiprocessor
2624 machines, but will use only one CPU of a multiprocessor machine. If
2625 you say Y here, the kernel will run on many, but not all,
2626 uniprocessor machines. On a uniprocessor machine, the kernel
2627 will run faster if you say N here.
2628
2629 People using multiprocessor machines who say Y here should also say
2630 Y to "Enhanced Real Time Clock Support", below.
2631
2632 See also the SMP-HOWTO available at
2633 <http://www.tldp.org/docs.html#howto>.
2634
2635 If you don't know what to do here, say N.
2636
2637config SMP_UP
2638 bool
2639
2640config SYS_SUPPORTS_MIPS_CMP
2641 bool
2642
2643config SYS_SUPPORTS_MIPS_CPS
2644 bool
2645
2646config SYS_SUPPORTS_SMP
2647 bool
2648
2649config NR_CPUS_DEFAULT_4
2650 bool
2651
2652config NR_CPUS_DEFAULT_8
2653 bool
2654
2655config NR_CPUS_DEFAULT_16
2656 bool
2657
2658config NR_CPUS_DEFAULT_32
2659 bool
2660
2661config NR_CPUS_DEFAULT_64
2662 bool
2663
2664config NR_CPUS
2665 int "Maximum number of CPUs (2-256)"
2666 range 2 256
2667 depends on SMP
2668 default "4" if NR_CPUS_DEFAULT_4
2669 default "8" if NR_CPUS_DEFAULT_8
2670 default "16" if NR_CPUS_DEFAULT_16
2671 default "32" if NR_CPUS_DEFAULT_32
2672 default "64" if NR_CPUS_DEFAULT_64
2673 help
2674 This allows you to specify the maximum number of CPUs which this
2675 kernel will support. The maximum supported value is 32 for 32-bit
2676 kernel and 64 for 64-bit kernels; the minimum value which makes
2677 sense is 1 for Qemu (useful only for kernel debugging purposes)
2678 and 2 for all others.
2679
2680 This is purely to save memory - each supported CPU adds
2681 approximately eight kilobytes to the kernel image. For best
2682 performance should round up your number of processors to the next
2683 power of two.
2684
2685config MIPS_PERF_SHARED_TC_COUNTERS
2686 bool
2687
2688#
2689# Timer Interrupt Frequency Configuration
2690#
2691
2692choice
2693 prompt "Timer frequency"
2694 default HZ_250
2695 help
2696 Allows the configuration of the timer frequency.
2697
2698 config HZ_24
2699 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2700
2701 config HZ_48
2702 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2703
2704 config HZ_100
2705 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2706
2707 config HZ_128
2708 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2709
2710 config HZ_250
2711 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2712
2713 config HZ_256
2714 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2715
2716 config HZ_1000
2717 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2718
2719 config HZ_1024
2720 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2721
2722endchoice
2723
2724config SYS_SUPPORTS_24HZ
2725 bool
2726
2727config SYS_SUPPORTS_48HZ
2728 bool
2729
2730config SYS_SUPPORTS_100HZ
2731 bool
2732
2733config SYS_SUPPORTS_128HZ
2734 bool
2735
2736config SYS_SUPPORTS_250HZ
2737 bool
2738
2739config SYS_SUPPORTS_256HZ
2740 bool
2741
2742config SYS_SUPPORTS_1000HZ
2743 bool
2744
2745config SYS_SUPPORTS_1024HZ
2746 bool
2747
2748config SYS_SUPPORTS_ARBIT_HZ
2749 bool
2750 default y if !SYS_SUPPORTS_24HZ && \
2751 !SYS_SUPPORTS_48HZ && \
2752 !SYS_SUPPORTS_100HZ && \
2753 !SYS_SUPPORTS_128HZ && \
2754 !SYS_SUPPORTS_250HZ && \
2755 !SYS_SUPPORTS_256HZ && \
2756 !SYS_SUPPORTS_1000HZ && \
2757 !SYS_SUPPORTS_1024HZ
2758
2759config HZ
2760 int
2761 default 24 if HZ_24
2762 default 48 if HZ_48
2763 default 100 if HZ_100
2764 default 128 if HZ_128
2765 default 250 if HZ_250
2766 default 256 if HZ_256
2767 default 1000 if HZ_1000
2768 default 1024 if HZ_1024
2769
2770config SCHED_HRTICK
2771 def_bool HIGH_RES_TIMERS
2772
2773source "kernel/Kconfig.preempt"
2774
2775config KEXEC
2776 bool "Kexec system call"
2777 select KEXEC_CORE
2778 help
2779 kexec is a system call that implements the ability to shutdown your
2780 current kernel, and to start another kernel. It is like a reboot
2781 but it is independent of the system firmware. And like a reboot
2782 you can start any kernel with it, not just Linux.
2783
2784 The name comes from the similarity to the exec system call.
2785
2786 It is an ongoing process to be certain the hardware in a machine
2787 is properly shutdown, so do not be surprised if this code does not
2788 initially work for you. As of this writing the exact hardware
2789 interface is strongly in flux, so no good recommendation can be
2790 made.
2791
2792config CRASH_DUMP
2793 bool "Kernel crash dumps"
2794 help
2795 Generate crash dump after being started by kexec.
2796 This should be normally only set in special crash dump kernels
2797 which are loaded in the main kernel with kexec-tools into
2798 a specially reserved region and then later executed after
2799 a crash by kdump/kexec. The crash dump kernel must be compiled
2800 to a memory address not used by the main kernel or firmware using
2801 PHYSICAL_START.
2802
2803config PHYSICAL_START
2804 hex "Physical address where the kernel is loaded"
2805 default "0xffffffff84000000" if 64BIT
2806 default "0x84000000" if 32BIT
2807 depends on CRASH_DUMP
2808 help
2809 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2810 If you plan to use kernel for capturing the crash dump change
2811 this value to start of the reserved region (the "X" value as
2812 specified in the "crashkernel=YM@XM" command line boot parameter
2813 passed to the panic-ed kernel).
2814
2815config SECCOMP
2816 bool "Enable seccomp to safely compute untrusted bytecode"
2817 depends on PROC_FS
2818 default y
2819 help
2820 This kernel feature is useful for number crunching applications
2821 that may need to compute untrusted bytecode during their
2822 execution. By using pipes or other transports made available to
2823 the process as file descriptors supporting the read/write
2824 syscalls, it's possible to isolate those applications in
2825 their own address space using seccomp. Once seccomp is
2826 enabled via /proc/<pid>/seccomp, it cannot be disabled
2827 and the task is only allowed to execute a few safe syscalls
2828 defined by each seccomp mode.
2829
2830 If unsure, say Y. Only embedded should say N here.
2831
2832config MIPS_O32_FP64_SUPPORT
2833 bool "Support for O32 binaries using 64-bit FP"
2834 depends on 32BIT || MIPS32_O32
2835 help
2836 When this is enabled, the kernel will support use of 64-bit floating
2837 point registers with binaries using the O32 ABI along with the
2838 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2839 32-bit MIPS systems this support is at the cost of increasing the
2840 size and complexity of the compiled FPU emulator. Thus if you are
2841 running a MIPS32 system and know that none of your userland binaries
2842 will require 64-bit floating point, you may wish to reduce the size
2843 of your kernel & potentially improve FP emulation performance by
2844 saying N here.
2845
2846 Although binutils currently supports use of this flag the details
2847 concerning its effect upon the O32 ABI in userland are still being
2848 worked on. In order to avoid userland becoming dependant upon current
2849 behaviour before the details have been finalised, this option should
2850 be considered experimental and only enabled by those working upon
2851 said details.
2852
2853 If unsure, say N.
2854
2855config USE_OF
2856 bool
2857 select OF
2858 select OF_EARLY_FLATTREE
2859 select IRQ_DOMAIN
2860
2861config BUILTIN_DTB
2862 bool
2863
2864choice
2865 prompt "Kernel appended dtb support" if USE_OF
2866 default MIPS_NO_APPENDED_DTB
2867
2868 config MIPS_NO_APPENDED_DTB
2869 bool "None"
2870 help
2871 Do not enable appended dtb support.
2872
2873 config MIPS_ELF_APPENDED_DTB
2874 bool "vmlinux"
2875 help
2876 With this option, the boot code will look for a device tree binary
2877 DTB) included in the vmlinux ELF section .appended_dtb. By default
2878 it is empty and the DTB can be appended using binutils command
2879 objcopy:
2880
2881 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
2882
2883 This is meant as a backward compatiblity convenience for those
2884 systems with a bootloader that can't be upgraded to accommodate
2885 the documented boot protocol using a device tree.
2886
2887 config MIPS_RAW_APPENDED_DTB
2888 bool "vmlinux.bin"
2889 help
2890 With this option, the boot code will look for a device tree binary
2891 DTB) appended to raw vmlinux.bin (without decompressor).
2892 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
2893
2894 This is meant as a backward compatibility convenience for those
2895 systems with a bootloader that can't be upgraded to accommodate
2896 the documented boot protocol using a device tree.
2897
2898 Beware that there is very little in terms of protection against
2899 this option being confused by leftover garbage in memory that might
2900 look like a DTB header after a reboot if no actual DTB is appended
2901 to vmlinux.bin. Do not leave this option active in a production kernel
2902 if you don't intend to always append a DTB.
2903
2904 config MIPS_ZBOOT_APPENDED_DTB
2905 bool "vmlinuz.bin"
2906 depends on SYS_SUPPORTS_ZBOOT
2907 help
2908 With this option, the boot code will look for a device tree binary
2909 DTB) appended to raw vmlinuz.bin (with decompressor).
2910 (e.g. cat vmlinuz.bin <filename>.dtb > vmlinuz_w_dtb).
2911
2912 This is meant as a backward compatibility convenience for those
2913 systems with a bootloader that can't be upgraded to accommodate
2914 the documented boot protocol using a device tree.
2915
2916 Beware that there is very little in terms of protection against
2917 this option being confused by leftover garbage in memory that might
2918 look like a DTB header after a reboot if no actual DTB is appended
2919 to vmlinuz.bin. Do not leave this option active in a production kernel
2920 if you don't intend to always append a DTB.
2921endchoice
2922
2923choice
2924 prompt "Kernel command line type" if !CMDLINE_OVERRIDE
2925 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
2926 !MIPS_MALTA && !MIPS_SEAD3 && \
2927 !CAVIUM_OCTEON_SOC
2928 default MIPS_CMDLINE_FROM_BOOTLOADER
2929
2930 config MIPS_CMDLINE_FROM_DTB
2931 depends on USE_OF
2932 bool "Dtb kernel arguments if available"
2933
2934 config MIPS_CMDLINE_DTB_EXTEND
2935 depends on USE_OF
2936 bool "Extend dtb kernel arguments with bootloader arguments"
2937
2938 config MIPS_CMDLINE_FROM_BOOTLOADER
2939 bool "Bootloader kernel arguments if available"
2940
2941 config MIPS_CMDLINE_BUILTIN_EXTEND
2942 depends on CMDLINE_BOOL
2943 bool "Extend builtin kernel arguments with bootloader arguments"
2944endchoice
2945
2946endmenu
2947
2948config LOCKDEP_SUPPORT
2949 bool
2950 default y
2951
2952config STACKTRACE_SUPPORT
2953 bool
2954 default y
2955
2956config HAVE_LATENCYTOP_SUPPORT
2957 bool
2958 default y
2959
2960config PGTABLE_LEVELS
2961 int
2962 default 3 if 64BIT && !PAGE_SIZE_64KB
2963 default 2
2964
2965source "init/Kconfig"
2966
2967source "kernel/Kconfig.freezer"
2968
2969menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2970
2971config HW_HAS_EISA
2972 bool
2973config HW_HAS_PCI
2974 bool
2975
2976config PCI
2977 bool "Support for PCI controller"
2978 depends on HW_HAS_PCI
2979 select PCI_DOMAINS
2980 select NO_GENERIC_PCI_IOPORT_MAP
2981 help
2982 Find out whether you have a PCI motherboard. PCI is the name of a
2983 bus system, i.e. the way the CPU talks to the other stuff inside
2984 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2985 say Y, otherwise N.
2986
2987config HT_PCI
2988 bool "Support for HT-linked PCI"
2989 default y
2990 depends on CPU_LOONGSON3
2991 select PCI
2992 select PCI_DOMAINS
2993 help
2994 Loongson family machines use Hyper-Transport bus for inter-core
2995 connection and device connection. The PCI bus is a subordinate
2996 linked at HT. Choose Y for Loongson-3 based machines.
2997
2998config PCI_DOMAINS
2999 bool
3000
3001source "drivers/pci/Kconfig"
3002
3003#
3004# ISA support is now enabled via select. Too many systems still have the one
3005# or other ISA chip on the board that users don't know about so don't expect
3006# users to choose the right thing ...
3007#
3008config ISA
3009 bool
3010
3011config EISA
3012 bool "EISA support"
3013 depends on HW_HAS_EISA
3014 select ISA
3015 select GENERIC_ISA_DMA
3016 ---help---
3017 The Extended Industry Standard Architecture (EISA) bus was
3018 developed as an open alternative to the IBM MicroChannel bus.
3019
3020 The EISA bus provided some of the features of the IBM MicroChannel
3021 bus while maintaining backward compatibility with cards made for
3022 the older ISA bus. The EISA bus saw limited use between 1988 and
3023 1995 when it was made obsolete by the PCI bus.
3024
3025 Say Y here if you are building a kernel for an EISA-based machine.
3026
3027 Otherwise, say N.
3028
3029source "drivers/eisa/Kconfig"
3030
3031config TC
3032 bool "TURBOchannel support"
3033 depends on MACH_DECSTATION
3034 help
3035 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3036 processors. TURBOchannel programming specifications are available
3037 at:
3038 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3039 and:
3040 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3041 Linux driver support status is documented at:
3042 <http://www.linux-mips.org/wiki/DECstation>
3043
3044config MMU
3045 bool
3046 default y
3047
3048config I8253
3049 bool
3050 select CLKSRC_I8253
3051 select CLKEVT_I8253
3052 select MIPS_EXTERNAL_TIMER
3053
3054config ZONE_DMA
3055 bool
3056
3057config ZONE_DMA32
3058 bool
3059
3060source "drivers/pcmcia/Kconfig"
3061
3062config RAPIDIO
3063 tristate "RapidIO support"
3064 depends on PCI
3065 default n
3066 help
3067 If you say Y here, the kernel will include drivers and
3068 infrastructure code to support RapidIO interconnect devices.
3069
3070source "drivers/rapidio/Kconfig"
3071
3072endmenu
3073
3074menu "Executable file formats"
3075
3076source "fs/Kconfig.binfmt"
3077
3078config TRAD_SIGNALS
3079 bool
3080
3081config MIPS32_COMPAT
3082 bool
3083
3084config COMPAT
3085 bool
3086
3087config SYSVIPC_COMPAT
3088 bool
3089
3090config MIPS32_O32
3091 bool "Kernel support for o32 binaries"
3092 depends on 64BIT
3093 select ARCH_WANT_OLD_COMPAT_IPC
3094 select COMPAT
3095 select MIPS32_COMPAT
3096 select SYSVIPC_COMPAT if SYSVIPC
3097 help
3098 Select this option if you want to run o32 binaries. These are pure
3099 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
3100 existing binaries are in this format.
3101
3102 If unsure, say Y.
3103
3104config MIPS32_N32
3105 bool "Kernel support for n32 binaries"
3106 depends on 64BIT
3107 select COMPAT
3108 select MIPS32_COMPAT
3109 select SYSVIPC_COMPAT if SYSVIPC
3110 help
3111 Select this option if you want to run n32 binaries. These are
3112 64-bit binaries using 32-bit quantities for addressing and certain
3113 data that would normally be 64-bit. They are used in special
3114 cases.
3115
3116 If unsure, say N.
3117
3118config BINFMT_ELF32
3119 bool
3120 default y if MIPS32_O32 || MIPS32_N32
3121
3122endmenu
3123
3124menu "Power management options"
3125
3126config ARCH_HIBERNATION_POSSIBLE
3127 def_bool y
3128 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3129
3130config ARCH_SUSPEND_POSSIBLE
3131 def_bool y
3132 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3133
3134source "kernel/power/Kconfig"
3135
3136endmenu
3137
3138config MIPS_EXTERNAL_TIMER
3139 bool
3140
3141menu "CPU Power Management"
3142
3143if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3144source "drivers/cpufreq/Kconfig"
3145endif
3146
3147source "drivers/cpuidle/Kconfig"
3148
3149endmenu
3150
3151source "net/Kconfig"
3152
3153source "drivers/Kconfig"
3154
3155source "drivers/firmware/Kconfig"
3156
3157source "fs/Kconfig"
3158
3159source "arch/mips/Kconfig.debug"
3160
3161source "security/Kconfig"
3162
3163source "crypto/Kconfig"
3164
3165source "lib/Kconfig"
3166
3167source "arch/mips/kvm/Kconfig"