79a1c6991c084eefc52c04b6cbe54026bbd45b42
[deliverable/linux.git] / arch / mips / Kconfig
1 config MIPS
2 bool
3 default y
4 select ARCH_SUPPORTS_UPROBES
5 select ARCH_MIGHT_HAVE_PC_PARPORT
6 select ARCH_MIGHT_HAVE_PC_SERIO
7 select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
8 select ARCH_USE_BUILTIN_BSWAP
9 select HAVE_CONTEXT_TRACKING
10 select HAVE_GENERIC_DMA_COHERENT
11 select HAVE_IDE
12 select HAVE_OPROFILE
13 select HAVE_PERF_EVENTS
14 select PERF_USE_VMALLOC
15 select HAVE_ARCH_KGDB
16 select HAVE_ARCH_SECCOMP_FILTER
17 select HAVE_ARCH_TRACEHOOK
18 select HAVE_BPF_JIT if !CPU_MICROMIPS
19 select HAVE_FUNCTION_TRACER
20 select HAVE_DYNAMIC_FTRACE
21 select HAVE_FTRACE_MCOUNT_RECORD
22 select HAVE_C_RECORDMCOUNT
23 select HAVE_FUNCTION_GRAPH_TRACER
24 select HAVE_KPROBES
25 select HAVE_KRETPROBES
26 select HAVE_SYSCALL_TRACEPOINTS
27 select HAVE_DEBUG_KMEMLEAK
28 select HAVE_SYSCALL_TRACEPOINTS
29 select ARCH_HAS_ELF_RANDOMIZE
30 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
31 select RTC_LIB if !MACH_LOONGSON64
32 select GENERIC_ATOMIC64 if !64BIT
33 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
34 select HAVE_DMA_CONTIGUOUS
35 select HAVE_DMA_API_DEBUG
36 select GENERIC_IRQ_PROBE
37 select GENERIC_IRQ_SHOW
38 select GENERIC_PCI_IOMAP
39 select HAVE_ARCH_JUMP_LABEL
40 select ARCH_WANT_IPC_PARSE_VERSION
41 select IRQ_FORCED_THREADING
42 select HAVE_MEMBLOCK
43 select HAVE_MEMBLOCK_NODE_MAP
44 select ARCH_DISCARD_MEMBLOCK
45 select GENERIC_SMP_IDLE_THREAD
46 select BUILDTIME_EXTABLE_SORT
47 select GENERIC_CLOCKEVENTS
48 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
49 select GENERIC_CMOS_UPDATE
50 select HAVE_MOD_ARCH_SPECIFIC
51 select VIRT_TO_BUS
52 select MODULES_USE_ELF_REL if MODULES
53 select MODULES_USE_ELF_RELA if MODULES && 64BIT
54 select CLONE_BACKWARDS
55 select HAVE_DEBUG_STACKOVERFLOW
56 select HAVE_CC_STACKPROTECTOR
57 select CPU_PM if CPU_IDLE
58 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
59 select ARCH_BINFMT_ELF_STATE
60 select SYSCTL_EXCEPTION_TRACE
61 select HAVE_VIRT_CPU_ACCOUNTING_GEN
62 select HAVE_IRQ_TIME_ACCOUNTING
63 select GENERIC_TIME_VSYSCALL
64 select ARCH_CLOCKSOURCE_DATA
65 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 select BCM47XX_SPROM
201 help
202 Support for BCM47XX based boards
203
204 config 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
222 config 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
242 config 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
279 config 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
303 config 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
317 config 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
340 config 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
357 config 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
367 config 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
380 config 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
409 config 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
431 config 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
487 config 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
495 config 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
531 config 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
538 config 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
546 config NXP_STB220
547 bool "NXP STB220 board"
548 select SOC_PNX833X
549 help
550 Support for NXP Semiconductors STB220 Development Board.
551
552 config 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
559 config 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
583 config 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
601 config 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
642 config 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
663 config 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
700 config 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
721 config 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
731 config 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
741 config 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
752 config 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
762 config 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
775 config 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
787 config 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
797 config 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
810 config 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
846 config MACH_TX39XX
847 bool "Toshiba TX39 series based machines"
848
849 config MACH_TX49XX
850 bool "Toshiba TX49 series based machines"
851
852 config 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
870 config 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
908 config 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
935 config 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
964 config 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
983 endchoice
984
985 source "arch/mips/alchemy/Kconfig"
986 source "arch/mips/ath25/Kconfig"
987 source "arch/mips/ath79/Kconfig"
988 source "arch/mips/bcm47xx/Kconfig"
989 source "arch/mips/bcm63xx/Kconfig"
990 source "arch/mips/bmips/Kconfig"
991 source "arch/mips/jazz/Kconfig"
992 source "arch/mips/jz4740/Kconfig"
993 source "arch/mips/lantiq/Kconfig"
994 source "arch/mips/lasat/Kconfig"
995 source "arch/mips/pic32/Kconfig"
996 source "arch/mips/pistachio/Kconfig"
997 source "arch/mips/pmcs-msp71xx/Kconfig"
998 source "arch/mips/ralink/Kconfig"
999 source "arch/mips/sgi-ip27/Kconfig"
1000 source "arch/mips/sibyte/Kconfig"
1001 source "arch/mips/txx9/Kconfig"
1002 source "arch/mips/vr41xx/Kconfig"
1003 source "arch/mips/cavium-octeon/Kconfig"
1004 source "arch/mips/loongson32/Kconfig"
1005 source "arch/mips/loongson64/Kconfig"
1006 source "arch/mips/netlogic/Kconfig"
1007 source "arch/mips/paravirt/Kconfig"
1008 source "arch/mips/xilfpga/Kconfig"
1009
1010 endmenu
1011
1012 config RWSEM_GENERIC_SPINLOCK
1013 bool
1014 default y
1015
1016 config RWSEM_XCHGADD_ALGORITHM
1017 bool
1018
1019 config ARCH_HAS_ILOG2_U32
1020 bool
1021 default n
1022
1023 config ARCH_HAS_ILOG2_U64
1024 bool
1025 default n
1026
1027 config GENERIC_HWEIGHT
1028 bool
1029 default y
1030
1031 config GENERIC_CALIBRATE_DELAY
1032 bool
1033 default y
1034
1035 config SCHED_OMIT_FRAME_POINTER
1036 bool
1037 default y
1038
1039 #
1040 # Select some configuration options automatically based on user selections.
1041 #
1042 config FW_ARC
1043 bool
1044
1045 config ARCH_MAY_HAVE_PC_FDC
1046 bool
1047
1048 config BOOT_RAW
1049 bool
1050
1051 config CEVT_BCM1480
1052 bool
1053
1054 config CEVT_DS1287
1055 bool
1056
1057 config CEVT_GT641XX
1058 bool
1059
1060 config CEVT_R4K
1061 bool
1062
1063 config CEVT_SB1250
1064 bool
1065
1066 config CEVT_TXX9
1067 bool
1068
1069 config CSRC_BCM1480
1070 bool
1071
1072 config CSRC_IOASIC
1073 bool
1074
1075 config CSRC_R4K
1076 bool
1077
1078 config CSRC_SB1250
1079 bool
1080
1081 config MIPS_CLOCK_VSYSCALL
1082 def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1083
1084 config GPIO_TXX9
1085 select ARCH_REQUIRE_GPIOLIB
1086 bool
1087
1088 config FW_CFE
1089 bool
1090
1091 config ARCH_DMA_ADDR_T_64BIT
1092 def_bool (HIGHMEM && ARCH_PHYS_ADDR_T_64BIT) || 64BIT
1093
1094 config ARCH_SUPPORTS_UPROBES
1095 bool
1096
1097 config DMA_MAYBE_COHERENT
1098 select DMA_NONCOHERENT
1099 bool
1100
1101 config DMA_COHERENT
1102 bool
1103
1104 config DMA_NONCOHERENT
1105 bool
1106 select NEED_DMA_MAP_STATE
1107
1108 config NEED_DMA_MAP_STATE
1109 bool
1110
1111 config SYS_HAS_EARLY_PRINTK
1112 bool
1113
1114 config 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
1124 config SYS_SUPPORTS_HOTPLUG_CPU
1125 bool
1126
1127 config MIPS_BONITO64
1128 bool
1129
1130 config MIPS_MSC
1131 bool
1132
1133 config MIPS_NILE4
1134 bool
1135
1136 config SYNC_R4K
1137 bool
1138
1139 config MIPS_MACHINE
1140 def_bool n
1141
1142 config NO_IOPORT_MAP
1143 def_bool n
1144
1145 config GENERIC_CSUM
1146 bool
1147
1148 config GENERIC_ISA_DMA
1149 bool
1150 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1151 select ISA_DMA_API
1152
1153 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1154 bool
1155 select GENERIC_ISA_DMA
1156
1157 config ISA_DMA_API
1158 bool
1159
1160 config HOLES_IN_ZONE
1161 bool
1162
1163 config 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 #
1175 choice
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
1184 config CPU_BIG_ENDIAN
1185 bool "Big endian"
1186 depends on SYS_SUPPORTS_BIG_ENDIAN
1187
1188 config CPU_LITTLE_ENDIAN
1189 bool "Little endian"
1190 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1191
1192 endchoice
1193
1194 config EXPORT_UASM
1195 bool
1196
1197 config SYS_SUPPORTS_APM_EMULATION
1198 bool
1199
1200 config SYS_SUPPORTS_BIG_ENDIAN
1201 bool
1202
1203 config SYS_SUPPORTS_LITTLE_ENDIAN
1204 bool
1205
1206 config SYS_SUPPORTS_HUGETLBFS
1207 bool
1208 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1209 default y
1210
1211 config MIPS_HUGE_TLB_SUPPORT
1212 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1213
1214 config IRQ_CPU_RM7K
1215 bool
1216
1217 config IRQ_MSP_SLP
1218 bool
1219
1220 config IRQ_MSP_CIC
1221 bool
1222
1223 config IRQ_TXX9
1224 bool
1225
1226 config IRQ_GT641XX
1227 bool
1228
1229 config PCI_GT64XXX_PCI0
1230 bool
1231
1232 config NO_EXCEPT_FILL
1233 bool
1234
1235 config 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
1247 config 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
1260 config SOC_PNX8335
1261 bool
1262 select SOC_PNX833X
1263
1264 config MIPS_SPRAM
1265 bool
1266
1267 config SWAP_IO_SPACE
1268 bool
1269
1270 config SGI_HAS_INDYDOG
1271 bool
1272
1273 config SGI_HAS_HAL2
1274 bool
1275
1276 config SGI_HAS_SEEQ
1277 bool
1278
1279 config SGI_HAS_WD93
1280 bool
1281
1282 config SGI_HAS_ZILOG
1283 bool
1284
1285 config SGI_HAS_I8042
1286 bool
1287
1288 config DEFAULT_SGI_PARTITION
1289 bool
1290
1291 config FW_ARC32
1292 bool
1293
1294 config FW_SNIPROM
1295 bool
1296
1297 config BOOT_ELF32
1298 bool
1299
1300 config MIPS_L1_CACHE_SHIFT_4
1301 bool
1302
1303 config MIPS_L1_CACHE_SHIFT_5
1304 bool
1305
1306 config MIPS_L1_CACHE_SHIFT_6
1307 bool
1308
1309 config MIPS_L1_CACHE_SHIFT_7
1310 bool
1311
1312 config 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
1320 config HAVE_STD_PC_SERIAL_PORT
1321 bool
1322
1323 config ARC_CONSOLE
1324 bool "ARC console support"
1325 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1326
1327 config ARC_MEMORY
1328 bool
1329 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1330 default y
1331
1332 config ARC_PROMLIB
1333 bool
1334 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1335 default y
1336
1337 config FW_ARC64
1338 bool
1339
1340 config BOOT_ELF64
1341 bool
1342
1343 menu "CPU selection"
1344
1345 choice
1346 prompt "CPU type"
1347 default CPU_R4X00
1348
1349 config 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 ARCH_REQUIRE_GPIOLIB
1358 help
1359 The Loongson 3 processor implements the MIPS64R2 instruction
1360 set with many extensions.
1361
1362 config CPU_LOONGSON2E
1363 bool "Loongson 2E"
1364 depends on SYS_HAS_CPU_LOONGSON2E
1365 select CPU_LOONGSON2
1366 help
1367 The Loongson 2E processor implements the MIPS III instruction set
1368 with many extensions.
1369
1370 It has an internal FPGA northbridge, which is compatible to
1371 bonito64.
1372
1373 config CPU_LOONGSON2F
1374 bool "Loongson 2F"
1375 depends on SYS_HAS_CPU_LOONGSON2F
1376 select CPU_LOONGSON2
1377 select ARCH_REQUIRE_GPIOLIB
1378 help
1379 The Loongson 2F processor implements the MIPS III instruction set
1380 with many extensions.
1381
1382 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1383 have a similar programming interface with FPGA northbridge used in
1384 Loongson2E.
1385
1386 config CPU_LOONGSON1B
1387 bool "Loongson 1B"
1388 depends on SYS_HAS_CPU_LOONGSON1B
1389 select CPU_LOONGSON1
1390 help
1391 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1392 release 2 instruction set.
1393
1394 config CPU_MIPS32_R1
1395 bool "MIPS32 Release 1"
1396 depends on SYS_HAS_CPU_MIPS32_R1
1397 select CPU_HAS_PREFETCH
1398 select CPU_SUPPORTS_32BIT_KERNEL
1399 select CPU_SUPPORTS_HIGHMEM
1400 help
1401 Choose this option to build a kernel for release 1 or later of the
1402 MIPS32 architecture. Most modern embedded systems with a 32-bit
1403 MIPS processor are based on a MIPS32 processor. If you know the
1404 specific type of processor in your system, choose those that one
1405 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1406 Release 2 of the MIPS32 architecture is available since several
1407 years so chances are you even have a MIPS32 Release 2 processor
1408 in which case you should choose CPU_MIPS32_R2 instead for better
1409 performance.
1410
1411 config CPU_MIPS32_R2
1412 bool "MIPS32 Release 2"
1413 depends on SYS_HAS_CPU_MIPS32_R2
1414 select CPU_HAS_PREFETCH
1415 select CPU_SUPPORTS_32BIT_KERNEL
1416 select CPU_SUPPORTS_HIGHMEM
1417 select CPU_SUPPORTS_MSA
1418 select HAVE_KVM
1419 help
1420 Choose this option to build a kernel for release 2 or later of the
1421 MIPS32 architecture. Most modern embedded systems with a 32-bit
1422 MIPS processor are based on a MIPS32 processor. If you know the
1423 specific type of processor in your system, choose those that one
1424 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1425
1426 config CPU_MIPS32_R6
1427 bool "MIPS32 Release 6"
1428 depends on SYS_HAS_CPU_MIPS32_R6
1429 select CPU_HAS_PREFETCH
1430 select CPU_SUPPORTS_32BIT_KERNEL
1431 select CPU_SUPPORTS_HIGHMEM
1432 select CPU_SUPPORTS_MSA
1433 select GENERIC_CSUM
1434 select HAVE_KVM
1435 select MIPS_O32_FP64_SUPPORT
1436 help
1437 Choose this option to build a kernel for release 6 or later of the
1438 MIPS32 architecture. New MIPS processors, starting with the Warrior
1439 family, are based on a MIPS32r6 processor. If you own an older
1440 processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1441
1442 config CPU_MIPS64_R1
1443 bool "MIPS64 Release 1"
1444 depends on SYS_HAS_CPU_MIPS64_R1
1445 select CPU_HAS_PREFETCH
1446 select CPU_SUPPORTS_32BIT_KERNEL
1447 select CPU_SUPPORTS_64BIT_KERNEL
1448 select CPU_SUPPORTS_HIGHMEM
1449 select CPU_SUPPORTS_HUGEPAGES
1450 help
1451 Choose this option to build a kernel for release 1 or later of the
1452 MIPS64 architecture. Many modern embedded systems with a 64-bit
1453 MIPS processor are based on a MIPS64 processor. If you know the
1454 specific type of processor in your system, choose those that one
1455 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1456 Release 2 of the MIPS64 architecture is available since several
1457 years so chances are you even have a MIPS64 Release 2 processor
1458 in which case you should choose CPU_MIPS64_R2 instead for better
1459 performance.
1460
1461 config CPU_MIPS64_R2
1462 bool "MIPS64 Release 2"
1463 depends on SYS_HAS_CPU_MIPS64_R2
1464 select CPU_HAS_PREFETCH
1465 select CPU_SUPPORTS_32BIT_KERNEL
1466 select CPU_SUPPORTS_64BIT_KERNEL
1467 select CPU_SUPPORTS_HIGHMEM
1468 select CPU_SUPPORTS_HUGEPAGES
1469 select CPU_SUPPORTS_MSA
1470 help
1471 Choose this option to build a kernel for release 2 or later of the
1472 MIPS64 architecture. Many modern embedded systems with a 64-bit
1473 MIPS processor are based on a MIPS64 processor. If you know the
1474 specific type of processor in your system, choose those that one
1475 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1476
1477 config CPU_MIPS64_R6
1478 bool "MIPS64 Release 6"
1479 depends on SYS_HAS_CPU_MIPS64_R6
1480 select CPU_HAS_PREFETCH
1481 select CPU_SUPPORTS_32BIT_KERNEL
1482 select CPU_SUPPORTS_64BIT_KERNEL
1483 select CPU_SUPPORTS_HIGHMEM
1484 select CPU_SUPPORTS_MSA
1485 select GENERIC_CSUM
1486 select MIPS_O32_FP64_SUPPORT if MIPS32_O32
1487 help
1488 Choose this option to build a kernel for release 6 or later of the
1489 MIPS64 architecture. New MIPS processors, starting with the Warrior
1490 family, are based on a MIPS64r6 processor. If you own an older
1491 processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1492
1493 config CPU_R3000
1494 bool "R3000"
1495 depends on SYS_HAS_CPU_R3000
1496 select CPU_HAS_WB
1497 select CPU_SUPPORTS_32BIT_KERNEL
1498 select CPU_SUPPORTS_HIGHMEM
1499 help
1500 Please make sure to pick the right CPU type. Linux/MIPS is not
1501 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1502 *not* work on R4000 machines and vice versa. However, since most
1503 of the supported machines have an R4000 (or similar) CPU, R4x00
1504 might be a safe bet. If the resulting kernel does not work,
1505 try to recompile with R3000.
1506
1507 config CPU_TX39XX
1508 bool "R39XX"
1509 depends on SYS_HAS_CPU_TX39XX
1510 select CPU_SUPPORTS_32BIT_KERNEL
1511
1512 config CPU_VR41XX
1513 bool "R41xx"
1514 depends on SYS_HAS_CPU_VR41XX
1515 select CPU_SUPPORTS_32BIT_KERNEL
1516 select CPU_SUPPORTS_64BIT_KERNEL
1517 help
1518 The options selects support for the NEC VR4100 series of processors.
1519 Only choose this option if you have one of these processors as a
1520 kernel built with this option will not run on any other type of
1521 processor or vice versa.
1522
1523 config CPU_R4300
1524 bool "R4300"
1525 depends on SYS_HAS_CPU_R4300
1526 select CPU_SUPPORTS_32BIT_KERNEL
1527 select CPU_SUPPORTS_64BIT_KERNEL
1528 help
1529 MIPS Technologies R4300-series processors.
1530
1531 config CPU_R4X00
1532 bool "R4x00"
1533 depends on SYS_HAS_CPU_R4X00
1534 select CPU_SUPPORTS_32BIT_KERNEL
1535 select CPU_SUPPORTS_64BIT_KERNEL
1536 select CPU_SUPPORTS_HUGEPAGES
1537 help
1538 MIPS Technologies R4000-series processors other than 4300, including
1539 the R4000, R4400, R4600, and 4700.
1540
1541 config CPU_TX49XX
1542 bool "R49XX"
1543 depends on SYS_HAS_CPU_TX49XX
1544 select CPU_HAS_PREFETCH
1545 select CPU_SUPPORTS_32BIT_KERNEL
1546 select CPU_SUPPORTS_64BIT_KERNEL
1547 select CPU_SUPPORTS_HUGEPAGES
1548
1549 config CPU_R5000
1550 bool "R5000"
1551 depends on SYS_HAS_CPU_R5000
1552 select CPU_SUPPORTS_32BIT_KERNEL
1553 select CPU_SUPPORTS_64BIT_KERNEL
1554 select CPU_SUPPORTS_HUGEPAGES
1555 help
1556 MIPS Technologies R5000-series processors other than the Nevada.
1557
1558 config CPU_R5432
1559 bool "R5432"
1560 depends on SYS_HAS_CPU_R5432
1561 select CPU_SUPPORTS_32BIT_KERNEL
1562 select CPU_SUPPORTS_64BIT_KERNEL
1563 select CPU_SUPPORTS_HUGEPAGES
1564
1565 config CPU_R5500
1566 bool "R5500"
1567 depends on SYS_HAS_CPU_R5500
1568 select CPU_SUPPORTS_32BIT_KERNEL
1569 select CPU_SUPPORTS_64BIT_KERNEL
1570 select CPU_SUPPORTS_HUGEPAGES
1571 help
1572 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1573 instruction set.
1574
1575 config CPU_R6000
1576 bool "R6000"
1577 depends on SYS_HAS_CPU_R6000
1578 select CPU_SUPPORTS_32BIT_KERNEL
1579 help
1580 MIPS Technologies R6000 and R6000A series processors. Note these
1581 processors are extremely rare and the support for them is incomplete.
1582
1583 config CPU_NEVADA
1584 bool "RM52xx"
1585 depends on SYS_HAS_CPU_NEVADA
1586 select CPU_SUPPORTS_32BIT_KERNEL
1587 select CPU_SUPPORTS_64BIT_KERNEL
1588 select CPU_SUPPORTS_HUGEPAGES
1589 help
1590 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1591
1592 config CPU_R8000
1593 bool "R8000"
1594 depends on SYS_HAS_CPU_R8000
1595 select CPU_HAS_PREFETCH
1596 select CPU_SUPPORTS_64BIT_KERNEL
1597 help
1598 MIPS Technologies R8000 processors. Note these processors are
1599 uncommon and the support for them is incomplete.
1600
1601 config CPU_R10000
1602 bool "R10000"
1603 depends on SYS_HAS_CPU_R10000
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 help
1610 MIPS Technologies R10000-series processors.
1611
1612 config CPU_RM7000
1613 bool "RM7000"
1614 depends on SYS_HAS_CPU_RM7000
1615 select CPU_HAS_PREFETCH
1616 select CPU_SUPPORTS_32BIT_KERNEL
1617 select CPU_SUPPORTS_64BIT_KERNEL
1618 select CPU_SUPPORTS_HIGHMEM
1619 select CPU_SUPPORTS_HUGEPAGES
1620
1621 config CPU_SB1
1622 bool "SB1"
1623 depends on SYS_HAS_CPU_SB1
1624 select CPU_SUPPORTS_32BIT_KERNEL
1625 select CPU_SUPPORTS_64BIT_KERNEL
1626 select CPU_SUPPORTS_HIGHMEM
1627 select CPU_SUPPORTS_HUGEPAGES
1628 select WEAK_ORDERING
1629
1630 config CPU_CAVIUM_OCTEON
1631 bool "Cavium Octeon processor"
1632 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1633 select CPU_HAS_PREFETCH
1634 select CPU_SUPPORTS_64BIT_KERNEL
1635 select WEAK_ORDERING
1636 select CPU_SUPPORTS_HIGHMEM
1637 select CPU_SUPPORTS_HUGEPAGES
1638 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1639 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1640 select MIPS_L1_CACHE_SHIFT_7
1641 help
1642 The Cavium Octeon processor is a highly integrated chip containing
1643 many ethernet hardware widgets for networking tasks. The processor
1644 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1645 Full details can be found at http://www.caviumnetworks.com.
1646
1647 config CPU_BMIPS
1648 bool "Broadcom BMIPS"
1649 depends on SYS_HAS_CPU_BMIPS
1650 select CPU_MIPS32
1651 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1652 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1653 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1654 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1655 select CPU_SUPPORTS_32BIT_KERNEL
1656 select DMA_NONCOHERENT
1657 select IRQ_MIPS_CPU
1658 select SWAP_IO_SPACE
1659 select WEAK_ORDERING
1660 select CPU_SUPPORTS_HIGHMEM
1661 select CPU_HAS_PREFETCH
1662 help
1663 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1664
1665 config CPU_XLR
1666 bool "Netlogic XLR SoC"
1667 depends on SYS_HAS_CPU_XLR
1668 select CPU_SUPPORTS_32BIT_KERNEL
1669 select CPU_SUPPORTS_64BIT_KERNEL
1670 select CPU_SUPPORTS_HIGHMEM
1671 select CPU_SUPPORTS_HUGEPAGES
1672 select WEAK_ORDERING
1673 select WEAK_REORDERING_BEYOND_LLSC
1674 help
1675 Netlogic Microsystems XLR/XLS processors.
1676
1677 config CPU_XLP
1678 bool "Netlogic XLP SoC"
1679 depends on SYS_HAS_CPU_XLP
1680 select CPU_SUPPORTS_32BIT_KERNEL
1681 select CPU_SUPPORTS_64BIT_KERNEL
1682 select CPU_SUPPORTS_HIGHMEM
1683 select WEAK_ORDERING
1684 select WEAK_REORDERING_BEYOND_LLSC
1685 select CPU_HAS_PREFETCH
1686 select CPU_MIPSR2
1687 select CPU_SUPPORTS_HUGEPAGES
1688 help
1689 Netlogic Microsystems XLP processors.
1690 endchoice
1691
1692 config CPU_MIPS32_3_5_FEATURES
1693 bool "MIPS32 Release 3.5 Features"
1694 depends on SYS_HAS_CPU_MIPS32_R3_5
1695 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1696 help
1697 Choose this option to build a kernel for release 2 or later of the
1698 MIPS32 architecture including features from the 3.5 release such as
1699 support for Enhanced Virtual Addressing (EVA).
1700
1701 config CPU_MIPS32_3_5_EVA
1702 bool "Enhanced Virtual Addressing (EVA)"
1703 depends on CPU_MIPS32_3_5_FEATURES
1704 select EVA
1705 default y
1706 help
1707 Choose this option if you want to enable the Enhanced Virtual
1708 Addressing (EVA) on your MIPS32 core (such as proAptiv).
1709 One of its primary benefits is an increase in the maximum size
1710 of lowmem (up to 3GB). If unsure, say 'N' here.
1711
1712 config CPU_MIPS32_R5_FEATURES
1713 bool "MIPS32 Release 5 Features"
1714 depends on SYS_HAS_CPU_MIPS32_R5
1715 depends on CPU_MIPS32_R2
1716 help
1717 Choose this option to build a kernel for release 2 or later of the
1718 MIPS32 architecture including features from release 5 such as
1719 support for Extended Physical Addressing (XPA).
1720
1721 config CPU_MIPS32_R5_XPA
1722 bool "Extended Physical Addressing (XPA)"
1723 depends on CPU_MIPS32_R5_FEATURES
1724 depends on !EVA
1725 depends on !PAGE_SIZE_4KB
1726 depends on SYS_SUPPORTS_HIGHMEM
1727 select XPA
1728 select HIGHMEM
1729 select ARCH_PHYS_ADDR_T_64BIT
1730 default n
1731 help
1732 Choose this option if you want to enable the Extended Physical
1733 Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1734 benefit is to increase physical addressing equal to or greater
1735 than 40 bits. Note that this has the side effect of turning on
1736 64-bit addressing which in turn makes the PTEs 64-bit in size.
1737 If unsure, say 'N' here.
1738
1739 if CPU_LOONGSON2F
1740 config CPU_NOP_WORKAROUNDS
1741 bool
1742
1743 config CPU_JUMP_WORKAROUNDS
1744 bool
1745
1746 config CPU_LOONGSON2F_WORKAROUNDS
1747 bool "Loongson 2F Workarounds"
1748 default y
1749 select CPU_NOP_WORKAROUNDS
1750 select CPU_JUMP_WORKAROUNDS
1751 help
1752 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1753 require workarounds. Without workarounds the system may hang
1754 unexpectedly. For more information please refer to the gas
1755 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1756
1757 Loongson 2F03 and later have fixed these issues and no workarounds
1758 are needed. The workarounds have no significant side effect on them
1759 but may decrease the performance of the system so this option should
1760 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1761 systems.
1762
1763 If unsure, please say Y.
1764 endif # CPU_LOONGSON2F
1765
1766 config SYS_SUPPORTS_ZBOOT
1767 bool
1768 select HAVE_KERNEL_GZIP
1769 select HAVE_KERNEL_BZIP2
1770 select HAVE_KERNEL_LZ4
1771 select HAVE_KERNEL_LZMA
1772 select HAVE_KERNEL_LZO
1773 select HAVE_KERNEL_XZ
1774
1775 config SYS_SUPPORTS_ZBOOT_UART16550
1776 bool
1777 select SYS_SUPPORTS_ZBOOT
1778
1779 config SYS_SUPPORTS_ZBOOT_UART_PROM
1780 bool
1781 select SYS_SUPPORTS_ZBOOT
1782
1783 config CPU_LOONGSON2
1784 bool
1785 select CPU_SUPPORTS_32BIT_KERNEL
1786 select CPU_SUPPORTS_64BIT_KERNEL
1787 select CPU_SUPPORTS_HIGHMEM
1788 select CPU_SUPPORTS_HUGEPAGES
1789
1790 config CPU_LOONGSON1
1791 bool
1792 select CPU_MIPS32
1793 select CPU_MIPSR2
1794 select CPU_HAS_PREFETCH
1795 select CPU_SUPPORTS_32BIT_KERNEL
1796 select CPU_SUPPORTS_HIGHMEM
1797 select CPU_SUPPORTS_CPUFREQ
1798
1799 config CPU_BMIPS32_3300
1800 select SMP_UP if SMP
1801 bool
1802
1803 config CPU_BMIPS4350
1804 bool
1805 select SYS_SUPPORTS_SMP
1806 select SYS_SUPPORTS_HOTPLUG_CPU
1807
1808 config CPU_BMIPS4380
1809 bool
1810 select MIPS_L1_CACHE_SHIFT_6
1811 select SYS_SUPPORTS_SMP
1812 select SYS_SUPPORTS_HOTPLUG_CPU
1813
1814 config CPU_BMIPS5000
1815 bool
1816 select MIPS_CPU_SCACHE
1817 select MIPS_L1_CACHE_SHIFT_7
1818 select SYS_SUPPORTS_SMP
1819 select SYS_SUPPORTS_HOTPLUG_CPU
1820
1821 config SYS_HAS_CPU_LOONGSON3
1822 bool
1823 select CPU_SUPPORTS_CPUFREQ
1824
1825 config SYS_HAS_CPU_LOONGSON2E
1826 bool
1827
1828 config SYS_HAS_CPU_LOONGSON2F
1829 bool
1830 select CPU_SUPPORTS_CPUFREQ
1831 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1832 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1833
1834 config SYS_HAS_CPU_LOONGSON1B
1835 bool
1836
1837 config SYS_HAS_CPU_MIPS32_R1
1838 bool
1839
1840 config SYS_HAS_CPU_MIPS32_R2
1841 bool
1842
1843 config SYS_HAS_CPU_MIPS32_R3_5
1844 bool
1845
1846 config SYS_HAS_CPU_MIPS32_R5
1847 bool
1848
1849 config SYS_HAS_CPU_MIPS32_R6
1850 bool
1851
1852 config SYS_HAS_CPU_MIPS64_R1
1853 bool
1854
1855 config SYS_HAS_CPU_MIPS64_R2
1856 bool
1857
1858 config SYS_HAS_CPU_MIPS64_R6
1859 bool
1860
1861 config SYS_HAS_CPU_R3000
1862 bool
1863
1864 config SYS_HAS_CPU_TX39XX
1865 bool
1866
1867 config SYS_HAS_CPU_VR41XX
1868 bool
1869
1870 config SYS_HAS_CPU_R4300
1871 bool
1872
1873 config SYS_HAS_CPU_R4X00
1874 bool
1875
1876 config SYS_HAS_CPU_TX49XX
1877 bool
1878
1879 config SYS_HAS_CPU_R5000
1880 bool
1881
1882 config SYS_HAS_CPU_R5432
1883 bool
1884
1885 config SYS_HAS_CPU_R5500
1886 bool
1887
1888 config SYS_HAS_CPU_R6000
1889 bool
1890
1891 config SYS_HAS_CPU_NEVADA
1892 bool
1893
1894 config SYS_HAS_CPU_R8000
1895 bool
1896
1897 config SYS_HAS_CPU_R10000
1898 bool
1899
1900 config SYS_HAS_CPU_RM7000
1901 bool
1902
1903 config SYS_HAS_CPU_SB1
1904 bool
1905
1906 config SYS_HAS_CPU_CAVIUM_OCTEON
1907 bool
1908
1909 config SYS_HAS_CPU_BMIPS
1910 bool
1911
1912 config SYS_HAS_CPU_BMIPS32_3300
1913 bool
1914 select SYS_HAS_CPU_BMIPS
1915
1916 config SYS_HAS_CPU_BMIPS4350
1917 bool
1918 select SYS_HAS_CPU_BMIPS
1919
1920 config SYS_HAS_CPU_BMIPS4380
1921 bool
1922 select SYS_HAS_CPU_BMIPS
1923
1924 config SYS_HAS_CPU_BMIPS5000
1925 bool
1926 select SYS_HAS_CPU_BMIPS
1927
1928 config SYS_HAS_CPU_XLR
1929 bool
1930
1931 config SYS_HAS_CPU_XLP
1932 bool
1933
1934 config MIPS_MALTA_PM
1935 depends on MIPS_MALTA
1936 depends on PCI
1937 bool
1938 default y
1939
1940 #
1941 # CPU may reorder R->R, R->W, W->R, W->W
1942 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1943 #
1944 config WEAK_ORDERING
1945 bool
1946
1947 #
1948 # CPU may reorder reads and writes beyond LL/SC
1949 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1950 #
1951 config WEAK_REORDERING_BEYOND_LLSC
1952 bool
1953 endmenu
1954
1955 #
1956 # These two indicate any level of the MIPS32 and MIPS64 architecture
1957 #
1958 config CPU_MIPS32
1959 bool
1960 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
1961
1962 config CPU_MIPS64
1963 bool
1964 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
1965
1966 #
1967 # These two indicate the revision of the architecture, either Release 1 or Release 2
1968 #
1969 config CPU_MIPSR1
1970 bool
1971 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1972
1973 config CPU_MIPSR2
1974 bool
1975 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1976 select MIPS_SPRAM
1977
1978 config CPU_MIPSR6
1979 bool
1980 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
1981 select MIPS_SPRAM
1982
1983 config EVA
1984 bool
1985
1986 config XPA
1987 bool
1988
1989 config SYS_SUPPORTS_32BIT_KERNEL
1990 bool
1991 config SYS_SUPPORTS_64BIT_KERNEL
1992 bool
1993 config CPU_SUPPORTS_32BIT_KERNEL
1994 bool
1995 config CPU_SUPPORTS_64BIT_KERNEL
1996 bool
1997 config CPU_SUPPORTS_CPUFREQ
1998 bool
1999 config CPU_SUPPORTS_ADDRWINCFG
2000 bool
2001 config CPU_SUPPORTS_HUGEPAGES
2002 bool
2003 config CPU_SUPPORTS_UNCACHED_ACCELERATED
2004 bool
2005 config MIPS_PGD_C0_CONTEXT
2006 bool
2007 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
2008
2009 #
2010 # Set to y for ptrace access to watch registers.
2011 #
2012 config HARDWARE_WATCHPOINTS
2013 bool
2014 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2015
2016 menu "Kernel type"
2017
2018 choice
2019 prompt "Kernel code model"
2020 help
2021 You should only select this option if you have a workload that
2022 actually benefits from 64-bit processing or if your machine has
2023 large memory. You will only be presented a single option in this
2024 menu if your system does not support both 32-bit and 64-bit kernels.
2025
2026 config 32BIT
2027 bool "32-bit kernel"
2028 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2029 select TRAD_SIGNALS
2030 help
2031 Select this option if you want to build a 32-bit kernel.
2032
2033 config 64BIT
2034 bool "64-bit kernel"
2035 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2036 help
2037 Select this option if you want to build a 64-bit kernel.
2038
2039 endchoice
2040
2041 config KVM_GUEST
2042 bool "KVM Guest Kernel"
2043 depends on BROKEN_ON_SMP
2044 help
2045 Select this option if building a guest kernel for KVM (Trap & Emulate)
2046 mode.
2047
2048 config KVM_GUEST_TIMER_FREQ
2049 int "Count/Compare Timer Frequency (MHz)"
2050 depends on KVM_GUEST
2051 default 100
2052 help
2053 Set this to non-zero if building a guest kernel for KVM to skip RTC
2054 emulation when determining guest CPU Frequency. Instead, the guest's
2055 timer frequency is specified directly.
2056
2057 choice
2058 prompt "Kernel page size"
2059 default PAGE_SIZE_4KB
2060
2061 config PAGE_SIZE_4KB
2062 bool "4kB"
2063 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
2064 help
2065 This option select the standard 4kB Linux page size. On some
2066 R3000-family processors this is the only available page size. Using
2067 4kB page size will minimize memory consumption and is therefore
2068 recommended for low memory systems.
2069
2070 config PAGE_SIZE_8KB
2071 bool "8kB"
2072 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
2073 help
2074 Using 8kB page size will result in higher performance kernel at
2075 the price of higher memory consumption. This option is available
2076 only on R8000 and cnMIPS processors. Note that you will need a
2077 suitable Linux distribution to support this.
2078
2079 config PAGE_SIZE_16KB
2080 bool "16kB"
2081 depends on !CPU_R3000 && !CPU_TX39XX
2082 help
2083 Using 16kB page size will result in higher performance kernel at
2084 the price of higher memory consumption. This option is available on
2085 all non-R3000 family processors. Note that you will need a suitable
2086 Linux distribution to support this.
2087
2088 config PAGE_SIZE_32KB
2089 bool "32kB"
2090 depends on CPU_CAVIUM_OCTEON
2091 help
2092 Using 32kB page size will result in higher performance kernel at
2093 the price of higher memory consumption. This option is available
2094 only on cnMIPS cores. Note that you will need a suitable Linux
2095 distribution to support this.
2096
2097 config PAGE_SIZE_64KB
2098 bool "64kB"
2099 depends on !CPU_R3000 && !CPU_TX39XX && !CPU_R6000
2100 help
2101 Using 64kB page size will result in higher performance kernel at
2102 the price of higher memory consumption. This option is available on
2103 all non-R3000 family processor. Not that at the time of this
2104 writing this option is still high experimental.
2105
2106 endchoice
2107
2108 config FORCE_MAX_ZONEORDER
2109 int "Maximum zone order"
2110 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2111 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2112 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2113 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2114 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2115 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2116 range 11 64
2117 default "11"
2118 help
2119 The kernel memory allocator divides physically contiguous memory
2120 blocks into "zones", where each zone is a power of two number of
2121 pages. This option selects the largest power of two that the kernel
2122 keeps in the memory allocator. If you need to allocate very large
2123 blocks of physically contiguous memory, then you may need to
2124 increase this value.
2125
2126 This config option is actually maximum order plus one. For example,
2127 a value of 11 means that the largest free memory block is 2^10 pages.
2128
2129 The page size is not necessarily 4KB. Keep this in mind
2130 when choosing a value for this option.
2131
2132 config BOARD_SCACHE
2133 bool
2134
2135 config IP22_CPU_SCACHE
2136 bool
2137 select BOARD_SCACHE
2138
2139 #
2140 # Support for a MIPS32 / MIPS64 style S-caches
2141 #
2142 config MIPS_CPU_SCACHE
2143 bool
2144 select BOARD_SCACHE
2145
2146 config R5000_CPU_SCACHE
2147 bool
2148 select BOARD_SCACHE
2149
2150 config RM7000_CPU_SCACHE
2151 bool
2152 select BOARD_SCACHE
2153
2154 config SIBYTE_DMA_PAGEOPS
2155 bool "Use DMA to clear/copy pages"
2156 depends on CPU_SB1
2157 help
2158 Instead of using the CPU to zero and copy pages, use a Data Mover
2159 channel. These DMA channels are otherwise unused by the standard
2160 SiByte Linux port. Seems to give a small performance benefit.
2161
2162 config CPU_HAS_PREFETCH
2163 bool
2164
2165 config CPU_GENERIC_DUMP_TLB
2166 bool
2167 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
2168
2169 config CPU_R4K_FPU
2170 bool
2171 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2172
2173 config CPU_R4K_CACHE_TLB
2174 bool
2175 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2176
2177 config MIPS_MT_SMP
2178 bool "MIPS MT SMP support (1 TC on each available VPE)"
2179 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6
2180 select CPU_MIPSR2_IRQ_VI
2181 select CPU_MIPSR2_IRQ_EI
2182 select SYNC_R4K
2183 select MIPS_MT
2184 select SMP
2185 select SMP_UP
2186 select SYS_SUPPORTS_SMP
2187 select SYS_SUPPORTS_SCHED_SMT
2188 select MIPS_PERF_SHARED_TC_COUNTERS
2189 help
2190 This is a kernel model which is known as SMVP. This is supported
2191 on cores with the MT ASE and uses the available VPEs to implement
2192 virtual processors which supports SMP. This is equivalent to the
2193 Intel Hyperthreading feature. For further information go to
2194 <http://www.imgtec.com/mips/mips-multithreading.asp>.
2195
2196 config MIPS_MT
2197 bool
2198
2199 config SCHED_SMT
2200 bool "SMT (multithreading) scheduler support"
2201 depends on SYS_SUPPORTS_SCHED_SMT
2202 default n
2203 help
2204 SMT scheduler support improves the CPU scheduler's decision making
2205 when dealing with MIPS MT enabled cores at a cost of slightly
2206 increased overhead in some places. If unsure say N here.
2207
2208 config SYS_SUPPORTS_SCHED_SMT
2209 bool
2210
2211 config SYS_SUPPORTS_MULTITHREADING
2212 bool
2213
2214 config MIPS_MT_FPAFF
2215 bool "Dynamic FPU affinity for FP-intensive threads"
2216 default y
2217 depends on MIPS_MT_SMP
2218
2219 config MIPSR2_TO_R6_EMULATOR
2220 bool "MIPS R2-to-R6 emulator"
2221 depends on CPU_MIPSR6 && !SMP
2222 default y
2223 help
2224 Choose this option if you want to run non-R6 MIPS userland code.
2225 Even if you say 'Y' here, the emulator will still be disabled by
2226 default. You can enable it using the 'mipsr2emu' kernel option.
2227 The only reason this is a build-time option is to save ~14K from the
2228 final kernel image.
2229 comment "MIPS R2-to-R6 emulator is only available for UP kernels"
2230 depends on SMP && CPU_MIPSR6
2231
2232 config MIPS_VPE_LOADER
2233 bool "VPE loader support."
2234 depends on SYS_SUPPORTS_MULTITHREADING && MODULES
2235 select CPU_MIPSR2_IRQ_VI
2236 select CPU_MIPSR2_IRQ_EI
2237 select MIPS_MT
2238 help
2239 Includes a loader for loading an elf relocatable object
2240 onto another VPE and running it.
2241
2242 config MIPS_VPE_LOADER_CMP
2243 bool
2244 default "y"
2245 depends on MIPS_VPE_LOADER && MIPS_CMP
2246
2247 config MIPS_VPE_LOADER_MT
2248 bool
2249 default "y"
2250 depends on MIPS_VPE_LOADER && !MIPS_CMP
2251
2252 config MIPS_VPE_LOADER_TOM
2253 bool "Load VPE program into memory hidden from linux"
2254 depends on MIPS_VPE_LOADER
2255 default y
2256 help
2257 The loader can use memory that is present but has been hidden from
2258 Linux using the kernel command line option "mem=xxMB". It's up to
2259 you to ensure the amount you put in the option and the space your
2260 program requires is less or equal to the amount physically present.
2261
2262 config MIPS_VPE_APSP_API
2263 bool "Enable support for AP/SP API (RTLX)"
2264 depends on MIPS_VPE_LOADER
2265 help
2266
2267 config MIPS_VPE_APSP_API_CMP
2268 bool
2269 default "y"
2270 depends on MIPS_VPE_APSP_API && MIPS_CMP
2271
2272 config MIPS_VPE_APSP_API_MT
2273 bool
2274 default "y"
2275 depends on MIPS_VPE_APSP_API && !MIPS_CMP
2276
2277 config MIPS_CMP
2278 bool "MIPS CMP framework support (DEPRECATED)"
2279 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2280 select SMP
2281 select SYNC_R4K
2282 select SYS_SUPPORTS_SMP
2283 select WEAK_ORDERING
2284 default n
2285 help
2286 Select this if you are using a bootloader which implements the "CMP
2287 framework" protocol (ie. YAMON) and want your kernel to make use of
2288 its ability to start secondary CPUs.
2289
2290 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2291 instead of this.
2292
2293 config MIPS_CPS
2294 bool "MIPS Coherent Processing System support"
2295 depends on SYS_SUPPORTS_MIPS_CPS
2296 select MIPS_CM
2297 select MIPS_CPC
2298 select MIPS_CPS_PM if HOTPLUG_CPU
2299 select SMP
2300 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2301 select SYS_SUPPORTS_HOTPLUG_CPU
2302 select SYS_SUPPORTS_SMP
2303 select WEAK_ORDERING
2304 help
2305 Select this if you wish to run an SMP kernel across multiple cores
2306 within a MIPS Coherent Processing System. When this option is
2307 enabled the kernel will probe for other cores and boot them with
2308 no external assistance. It is safe to enable this when hardware
2309 support is unavailable.
2310
2311 config MIPS_CPS_PM
2312 depends on MIPS_CPS
2313 select MIPS_CPC
2314 bool
2315
2316 config MIPS_CM
2317 bool
2318
2319 config MIPS_CPC
2320 bool
2321
2322 config SB1_PASS_2_WORKAROUNDS
2323 bool
2324 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2325 default y
2326
2327 config SB1_PASS_2_1_WORKAROUNDS
2328 bool
2329 depends on CPU_SB1 && CPU_SB1_PASS_2
2330 default y
2331
2332
2333 config ARCH_PHYS_ADDR_T_64BIT
2334 bool
2335
2336 choice
2337 prompt "SmartMIPS or microMIPS ASE support"
2338
2339 config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2340 bool "None"
2341 help
2342 Select this if you want neither microMIPS nor SmartMIPS support
2343
2344 config CPU_HAS_SMARTMIPS
2345 depends on SYS_SUPPORTS_SMARTMIPS
2346 bool "SmartMIPS"
2347 help
2348 SmartMIPS is a extension of the MIPS32 architecture aimed at
2349 increased security at both hardware and software level for
2350 smartcards. Enabling this option will allow proper use of the
2351 SmartMIPS instructions by Linux applications. However a kernel with
2352 this option will not work on a MIPS core without SmartMIPS core. If
2353 you don't know you probably don't have SmartMIPS and should say N
2354 here.
2355
2356 config CPU_MICROMIPS
2357 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2358 bool "microMIPS"
2359 help
2360 When this option is enabled the kernel will be built using the
2361 microMIPS ISA
2362
2363 endchoice
2364
2365 config CPU_HAS_MSA
2366 bool "Support for the MIPS SIMD Architecture"
2367 depends on CPU_SUPPORTS_MSA
2368 depends on 64BIT || MIPS_O32_FP64_SUPPORT
2369 help
2370 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2371 and a set of SIMD instructions to operate on them. When this option
2372 is enabled the kernel will support allocating & switching MSA
2373 vector register contexts. If you know that your kernel will only be
2374 running on CPUs which do not support MSA or that your userland will
2375 not be making use of it then you may wish to say N here to reduce
2376 the size & complexity of your kernel.
2377
2378 If unsure, say Y.
2379
2380 config CPU_HAS_WB
2381 bool
2382
2383 config XKS01
2384 bool
2385
2386 #
2387 # Vectored interrupt mode is an R2 feature
2388 #
2389 config CPU_MIPSR2_IRQ_VI
2390 bool
2391
2392 #
2393 # Extended interrupt mode is an R2 feature
2394 #
2395 config CPU_MIPSR2_IRQ_EI
2396 bool
2397
2398 config CPU_HAS_SYNC
2399 bool
2400 depends on !CPU_R3000
2401 default y
2402
2403 #
2404 # CPU non-features
2405 #
2406 config CPU_DADDI_WORKAROUNDS
2407 bool
2408
2409 config CPU_R4000_WORKAROUNDS
2410 bool
2411 select CPU_R4400_WORKAROUNDS
2412
2413 config CPU_R4400_WORKAROUNDS
2414 bool
2415
2416 #
2417 # - Highmem only makes sense for the 32-bit kernel.
2418 # - The current highmem code will only work properly on physically indexed
2419 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2420 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2421 # moment we protect the user and offer the highmem option only on machines
2422 # where it's known to be safe. This will not offer highmem on a few systems
2423 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2424 # indexed CPUs but we're playing safe.
2425 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2426 # know they might have memory configurations that could make use of highmem
2427 # support.
2428 #
2429 config HIGHMEM
2430 bool "High Memory Support"
2431 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2432
2433 config CPU_SUPPORTS_HIGHMEM
2434 bool
2435
2436 config SYS_SUPPORTS_HIGHMEM
2437 bool
2438
2439 config SYS_SUPPORTS_SMARTMIPS
2440 bool
2441
2442 config SYS_SUPPORTS_MICROMIPS
2443 bool
2444
2445 config SYS_SUPPORTS_MIPS16
2446 bool
2447 help
2448 This option must be set if a kernel might be executed on a MIPS16-
2449 enabled CPU even if MIPS16 is not actually being used. In other
2450 words, it makes the kernel MIPS16-tolerant.
2451
2452 config CPU_SUPPORTS_MSA
2453 bool
2454
2455 config ARCH_FLATMEM_ENABLE
2456 def_bool y
2457 depends on !NUMA && !CPU_LOONGSON2
2458
2459 config ARCH_DISCONTIGMEM_ENABLE
2460 bool
2461 default y if SGI_IP27
2462 help
2463 Say Y to support efficient handling of discontiguous physical memory,
2464 for architectures which are either NUMA (Non-Uniform Memory Access)
2465 or have huge holes in the physical address space for other reasons.
2466 See <file:Documentation/vm/numa> for more.
2467
2468 config ARCH_SPARSEMEM_ENABLE
2469 bool
2470 select SPARSEMEM_STATIC
2471
2472 config NUMA
2473 bool "NUMA Support"
2474 depends on SYS_SUPPORTS_NUMA
2475 help
2476 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2477 Access). This option improves performance on systems with more
2478 than two nodes; on two node systems it is generally better to
2479 leave it disabled; on single node systems disable this option
2480 disabled.
2481
2482 config SYS_SUPPORTS_NUMA
2483 bool
2484
2485 config RELOCATABLE
2486 bool "Relocatable kernel"
2487 depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6)
2488 help
2489 This builds a kernel image that retains relocation information
2490 so it can be loaded someplace besides the default 1MB.
2491 The relocations make the kernel binary about 15% larger,
2492 but are discarded at runtime
2493
2494 config RELOCATION_TABLE_SIZE
2495 hex "Relocation table size"
2496 depends on RELOCATABLE
2497 range 0x0 0x01000000
2498 default "0x00100000"
2499 ---help---
2500 A table of relocation data will be appended to the kernel binary
2501 and parsed at boot to fix up the relocated kernel.
2502
2503 This option allows the amount of space reserved for the table to be
2504 adjusted, although the default of 1Mb should be ok in most cases.
2505
2506 The build will fail and a valid size suggested if this is too small.
2507
2508 If unsure, leave at the default value.
2509
2510 config RANDOMIZE_BASE
2511 bool "Randomize the address of the kernel image"
2512 depends on RELOCATABLE
2513 ---help---
2514 Randomizes the physical and virtual address at which the
2515 kernel image is loaded, as a security feature that
2516 deters exploit attempts relying on knowledge of the location
2517 of kernel internals.
2518
2519 Entropy is generated using any coprocessor 0 registers available.
2520
2521 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2522
2523 If unsure, say N.
2524
2525 config RANDOMIZE_BASE_MAX_OFFSET
2526 hex "Maximum kASLR offset" if EXPERT
2527 depends on RANDOMIZE_BASE
2528 range 0x0 0x40000000 if EVA || 64BIT
2529 range 0x0 0x08000000
2530 default "0x01000000"
2531 ---help---
2532 When kASLR is active, this provides the maximum offset that will
2533 be applied to the kernel image. It should be set according to the
2534 amount of physical RAM available in the target system minus
2535 PHYSICAL_START and must be a power of 2.
2536
2537 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2538 EVA or 64-bit. The default is 16Mb.
2539
2540 config NODES_SHIFT
2541 int
2542 default "6"
2543 depends on NEED_MULTIPLE_NODES
2544
2545 config HW_PERF_EVENTS
2546 bool "Enable hardware performance counter support for perf events"
2547 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2548 default y
2549 help
2550 Enable hardware performance counter support for perf events. If
2551 disabled, perf events will use software events only.
2552
2553 source "mm/Kconfig"
2554
2555 config SMP
2556 bool "Multi-Processing support"
2557 depends on SYS_SUPPORTS_SMP
2558 help
2559 This enables support for systems with more than one CPU. If you have
2560 a system with only one CPU, say N. If you have a system with more
2561 than one CPU, say Y.
2562
2563 If you say N here, the kernel will run on uni- and multiprocessor
2564 machines, but will use only one CPU of a multiprocessor machine. If
2565 you say Y here, the kernel will run on many, but not all,
2566 uniprocessor machines. On a uniprocessor machine, the kernel
2567 will run faster if you say N here.
2568
2569 People using multiprocessor machines who say Y here should also say
2570 Y to "Enhanced Real Time Clock Support", below.
2571
2572 See also the SMP-HOWTO available at
2573 <http://www.tldp.org/docs.html#howto>.
2574
2575 If you don't know what to do here, say N.
2576
2577 config SMP_UP
2578 bool
2579
2580 config SYS_SUPPORTS_MIPS_CMP
2581 bool
2582
2583 config SYS_SUPPORTS_MIPS_CPS
2584 bool
2585
2586 config SYS_SUPPORTS_SMP
2587 bool
2588
2589 config NR_CPUS_DEFAULT_4
2590 bool
2591
2592 config NR_CPUS_DEFAULT_8
2593 bool
2594
2595 config NR_CPUS_DEFAULT_16
2596 bool
2597
2598 config NR_CPUS_DEFAULT_32
2599 bool
2600
2601 config NR_CPUS_DEFAULT_64
2602 bool
2603
2604 config NR_CPUS
2605 int "Maximum number of CPUs (2-256)"
2606 range 2 256
2607 depends on SMP
2608 default "4" if NR_CPUS_DEFAULT_4
2609 default "8" if NR_CPUS_DEFAULT_8
2610 default "16" if NR_CPUS_DEFAULT_16
2611 default "32" if NR_CPUS_DEFAULT_32
2612 default "64" if NR_CPUS_DEFAULT_64
2613 help
2614 This allows you to specify the maximum number of CPUs which this
2615 kernel will support. The maximum supported value is 32 for 32-bit
2616 kernel and 64 for 64-bit kernels; the minimum value which makes
2617 sense is 1 for Qemu (useful only for kernel debugging purposes)
2618 and 2 for all others.
2619
2620 This is purely to save memory - each supported CPU adds
2621 approximately eight kilobytes to the kernel image. For best
2622 performance should round up your number of processors to the next
2623 power of two.
2624
2625 config MIPS_PERF_SHARED_TC_COUNTERS
2626 bool
2627
2628 #
2629 # Timer Interrupt Frequency Configuration
2630 #
2631
2632 choice
2633 prompt "Timer frequency"
2634 default HZ_250
2635 help
2636 Allows the configuration of the timer frequency.
2637
2638 config HZ_24
2639 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2640
2641 config HZ_48
2642 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2643
2644 config HZ_100
2645 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2646
2647 config HZ_128
2648 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2649
2650 config HZ_250
2651 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2652
2653 config HZ_256
2654 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2655
2656 config HZ_1000
2657 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2658
2659 config HZ_1024
2660 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2661
2662 endchoice
2663
2664 config SYS_SUPPORTS_24HZ
2665 bool
2666
2667 config SYS_SUPPORTS_48HZ
2668 bool
2669
2670 config SYS_SUPPORTS_100HZ
2671 bool
2672
2673 config SYS_SUPPORTS_128HZ
2674 bool
2675
2676 config SYS_SUPPORTS_250HZ
2677 bool
2678
2679 config SYS_SUPPORTS_256HZ
2680 bool
2681
2682 config SYS_SUPPORTS_1000HZ
2683 bool
2684
2685 config SYS_SUPPORTS_1024HZ
2686 bool
2687
2688 config SYS_SUPPORTS_ARBIT_HZ
2689 bool
2690 default y if !SYS_SUPPORTS_24HZ && \
2691 !SYS_SUPPORTS_48HZ && \
2692 !SYS_SUPPORTS_100HZ && \
2693 !SYS_SUPPORTS_128HZ && \
2694 !SYS_SUPPORTS_250HZ && \
2695 !SYS_SUPPORTS_256HZ && \
2696 !SYS_SUPPORTS_1000HZ && \
2697 !SYS_SUPPORTS_1024HZ
2698
2699 config HZ
2700 int
2701 default 24 if HZ_24
2702 default 48 if HZ_48
2703 default 100 if HZ_100
2704 default 128 if HZ_128
2705 default 250 if HZ_250
2706 default 256 if HZ_256
2707 default 1000 if HZ_1000
2708 default 1024 if HZ_1024
2709
2710 config SCHED_HRTICK
2711 def_bool HIGH_RES_TIMERS
2712
2713 source "kernel/Kconfig.preempt"
2714
2715 config KEXEC
2716 bool "Kexec system call"
2717 select KEXEC_CORE
2718 help
2719 kexec is a system call that implements the ability to shutdown your
2720 current kernel, and to start another kernel. It is like a reboot
2721 but it is independent of the system firmware. And like a reboot
2722 you can start any kernel with it, not just Linux.
2723
2724 The name comes from the similarity to the exec system call.
2725
2726 It is an ongoing process to be certain the hardware in a machine
2727 is properly shutdown, so do not be surprised if this code does not
2728 initially work for you. As of this writing the exact hardware
2729 interface is strongly in flux, so no good recommendation can be
2730 made.
2731
2732 config CRASH_DUMP
2733 bool "Kernel crash dumps"
2734 help
2735 Generate crash dump after being started by kexec.
2736 This should be normally only set in special crash dump kernels
2737 which are loaded in the main kernel with kexec-tools into
2738 a specially reserved region and then later executed after
2739 a crash by kdump/kexec. The crash dump kernel must be compiled
2740 to a memory address not used by the main kernel or firmware using
2741 PHYSICAL_START.
2742
2743 config PHYSICAL_START
2744 hex "Physical address where the kernel is loaded"
2745 default "0xffffffff84000000" if 64BIT
2746 default "0x84000000" if 32BIT
2747 depends on CRASH_DUMP
2748 help
2749 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2750 If you plan to use kernel for capturing the crash dump change
2751 this value to start of the reserved region (the "X" value as
2752 specified in the "crashkernel=YM@XM" command line boot parameter
2753 passed to the panic-ed kernel).
2754
2755 config SECCOMP
2756 bool "Enable seccomp to safely compute untrusted bytecode"
2757 depends on PROC_FS
2758 default y
2759 help
2760 This kernel feature is useful for number crunching applications
2761 that may need to compute untrusted bytecode during their
2762 execution. By using pipes or other transports made available to
2763 the process as file descriptors supporting the read/write
2764 syscalls, it's possible to isolate those applications in
2765 their own address space using seccomp. Once seccomp is
2766 enabled via /proc/<pid>/seccomp, it cannot be disabled
2767 and the task is only allowed to execute a few safe syscalls
2768 defined by each seccomp mode.
2769
2770 If unsure, say Y. Only embedded should say N here.
2771
2772 config MIPS_O32_FP64_SUPPORT
2773 bool "Support for O32 binaries using 64-bit FP"
2774 depends on 32BIT || MIPS32_O32
2775 help
2776 When this is enabled, the kernel will support use of 64-bit floating
2777 point registers with binaries using the O32 ABI along with the
2778 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2779 32-bit MIPS systems this support is at the cost of increasing the
2780 size and complexity of the compiled FPU emulator. Thus if you are
2781 running a MIPS32 system and know that none of your userland binaries
2782 will require 64-bit floating point, you may wish to reduce the size
2783 of your kernel & potentially improve FP emulation performance by
2784 saying N here.
2785
2786 Although binutils currently supports use of this flag the details
2787 concerning its effect upon the O32 ABI in userland are still being
2788 worked on. In order to avoid userland becoming dependant upon current
2789 behaviour before the details have been finalised, this option should
2790 be considered experimental and only enabled by those working upon
2791 said details.
2792
2793 If unsure, say N.
2794
2795 config USE_OF
2796 bool
2797 select OF
2798 select OF_EARLY_FLATTREE
2799 select IRQ_DOMAIN
2800
2801 config BUILTIN_DTB
2802 bool
2803
2804 choice
2805 prompt "Kernel appended dtb support" if USE_OF
2806 default MIPS_NO_APPENDED_DTB
2807
2808 config MIPS_NO_APPENDED_DTB
2809 bool "None"
2810 help
2811 Do not enable appended dtb support.
2812
2813 config MIPS_ELF_APPENDED_DTB
2814 bool "vmlinux"
2815 help
2816 With this option, the boot code will look for a device tree binary
2817 DTB) included in the vmlinux ELF section .appended_dtb. By default
2818 it is empty and the DTB can be appended using binutils command
2819 objcopy:
2820
2821 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
2822
2823 This is meant as a backward compatiblity convenience for those
2824 systems with a bootloader that can't be upgraded to accommodate
2825 the documented boot protocol using a device tree.
2826
2827 config MIPS_RAW_APPENDED_DTB
2828 bool "vmlinux.bin"
2829 help
2830 With this option, the boot code will look for a device tree binary
2831 DTB) appended to raw vmlinux.bin (without decompressor).
2832 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
2833
2834 This is meant as a backward compatibility convenience for those
2835 systems with a bootloader that can't be upgraded to accommodate
2836 the documented boot protocol using a device tree.
2837
2838 Beware that there is very little in terms of protection against
2839 this option being confused by leftover garbage in memory that might
2840 look like a DTB header after a reboot if no actual DTB is appended
2841 to vmlinux.bin. Do not leave this option active in a production kernel
2842 if you don't intend to always append a DTB.
2843
2844 config MIPS_ZBOOT_APPENDED_DTB
2845 bool "vmlinuz.bin"
2846 depends on SYS_SUPPORTS_ZBOOT
2847 help
2848 With this option, the boot code will look for a device tree binary
2849 DTB) appended to raw vmlinuz.bin (with decompressor).
2850 (e.g. cat vmlinuz.bin <filename>.dtb > vmlinuz_w_dtb).
2851
2852 This is meant as a backward compatibility convenience for those
2853 systems with a bootloader that can't be upgraded to accommodate
2854 the documented boot protocol using a device tree.
2855
2856 Beware that there is very little in terms of protection against
2857 this option being confused by leftover garbage in memory that might
2858 look like a DTB header after a reboot if no actual DTB is appended
2859 to vmlinuz.bin. Do not leave this option active in a production kernel
2860 if you don't intend to always append a DTB.
2861 endchoice
2862
2863 choice
2864 prompt "Kernel command line type" if !CMDLINE_OVERRIDE
2865 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
2866 !MIPS_MALTA && !MIPS_SEAD3 && \
2867 !CAVIUM_OCTEON_SOC
2868 default MIPS_CMDLINE_FROM_BOOTLOADER
2869
2870 config MIPS_CMDLINE_FROM_DTB
2871 depends on USE_OF
2872 bool "Dtb kernel arguments if available"
2873
2874 config MIPS_CMDLINE_DTB_EXTEND
2875 depends on USE_OF
2876 bool "Extend dtb kernel arguments with bootloader arguments"
2877
2878 config MIPS_CMDLINE_FROM_BOOTLOADER
2879 bool "Bootloader kernel arguments if available"
2880 endchoice
2881
2882 endmenu
2883
2884 config LOCKDEP_SUPPORT
2885 bool
2886 default y
2887
2888 config STACKTRACE_SUPPORT
2889 bool
2890 default y
2891
2892 config HAVE_LATENCYTOP_SUPPORT
2893 bool
2894 default y
2895
2896 config PGTABLE_LEVELS
2897 int
2898 default 3 if 64BIT && !PAGE_SIZE_64KB
2899 default 2
2900
2901 source "init/Kconfig"
2902
2903 source "kernel/Kconfig.freezer"
2904
2905 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2906
2907 config HW_HAS_EISA
2908 bool
2909 config HW_HAS_PCI
2910 bool
2911
2912 config PCI
2913 bool "Support for PCI controller"
2914 depends on HW_HAS_PCI
2915 select PCI_DOMAINS
2916 select NO_GENERIC_PCI_IOPORT_MAP
2917 help
2918 Find out whether you have a PCI motherboard. PCI is the name of a
2919 bus system, i.e. the way the CPU talks to the other stuff inside
2920 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2921 say Y, otherwise N.
2922
2923 config HT_PCI
2924 bool "Support for HT-linked PCI"
2925 default y
2926 depends on CPU_LOONGSON3
2927 select PCI
2928 select PCI_DOMAINS
2929 help
2930 Loongson family machines use Hyper-Transport bus for inter-core
2931 connection and device connection. The PCI bus is a subordinate
2932 linked at HT. Choose Y for Loongson-3 based machines.
2933
2934 config PCI_DOMAINS
2935 bool
2936
2937 source "drivers/pci/Kconfig"
2938
2939 #
2940 # ISA support is now enabled via select. Too many systems still have the one
2941 # or other ISA chip on the board that users don't know about so don't expect
2942 # users to choose the right thing ...
2943 #
2944 config ISA
2945 bool
2946
2947 config EISA
2948 bool "EISA support"
2949 depends on HW_HAS_EISA
2950 select ISA
2951 select GENERIC_ISA_DMA
2952 ---help---
2953 The Extended Industry Standard Architecture (EISA) bus was
2954 developed as an open alternative to the IBM MicroChannel bus.
2955
2956 The EISA bus provided some of the features of the IBM MicroChannel
2957 bus while maintaining backward compatibility with cards made for
2958 the older ISA bus. The EISA bus saw limited use between 1988 and
2959 1995 when it was made obsolete by the PCI bus.
2960
2961 Say Y here if you are building a kernel for an EISA-based machine.
2962
2963 Otherwise, say N.
2964
2965 source "drivers/eisa/Kconfig"
2966
2967 config TC
2968 bool "TURBOchannel support"
2969 depends on MACH_DECSTATION
2970 help
2971 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2972 processors. TURBOchannel programming specifications are available
2973 at:
2974 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2975 and:
2976 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2977 Linux driver support status is documented at:
2978 <http://www.linux-mips.org/wiki/DECstation>
2979
2980 config MMU
2981 bool
2982 default y
2983
2984 config I8253
2985 bool
2986 select CLKSRC_I8253
2987 select CLKEVT_I8253
2988 select MIPS_EXTERNAL_TIMER
2989
2990 config ZONE_DMA
2991 bool
2992
2993 config ZONE_DMA32
2994 bool
2995
2996 source "drivers/pcmcia/Kconfig"
2997
2998 config RAPIDIO
2999 tristate "RapidIO support"
3000 depends on PCI
3001 default n
3002 help
3003 If you say Y here, the kernel will include drivers and
3004 infrastructure code to support RapidIO interconnect devices.
3005
3006 source "drivers/rapidio/Kconfig"
3007
3008 endmenu
3009
3010 menu "Executable file formats"
3011
3012 source "fs/Kconfig.binfmt"
3013
3014 config TRAD_SIGNALS
3015 bool
3016
3017 config MIPS32_COMPAT
3018 bool
3019
3020 config COMPAT
3021 bool
3022
3023 config SYSVIPC_COMPAT
3024 bool
3025
3026 config MIPS32_O32
3027 bool "Kernel support for o32 binaries"
3028 depends on 64BIT
3029 select ARCH_WANT_OLD_COMPAT_IPC
3030 select COMPAT
3031 select MIPS32_COMPAT
3032 select SYSVIPC_COMPAT if SYSVIPC
3033 help
3034 Select this option if you want to run o32 binaries. These are pure
3035 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
3036 existing binaries are in this format.
3037
3038 If unsure, say Y.
3039
3040 config MIPS32_N32
3041 bool "Kernel support for n32 binaries"
3042 depends on 64BIT
3043 select COMPAT
3044 select MIPS32_COMPAT
3045 select SYSVIPC_COMPAT if SYSVIPC
3046 help
3047 Select this option if you want to run n32 binaries. These are
3048 64-bit binaries using 32-bit quantities for addressing and certain
3049 data that would normally be 64-bit. They are used in special
3050 cases.
3051
3052 If unsure, say N.
3053
3054 config BINFMT_ELF32
3055 bool
3056 default y if MIPS32_O32 || MIPS32_N32
3057
3058 endmenu
3059
3060 menu "Power management options"
3061
3062 config ARCH_HIBERNATION_POSSIBLE
3063 def_bool y
3064 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3065
3066 config ARCH_SUSPEND_POSSIBLE
3067 def_bool y
3068 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3069
3070 source "kernel/power/Kconfig"
3071
3072 endmenu
3073
3074 config MIPS_EXTERNAL_TIMER
3075 bool
3076
3077 menu "CPU Power Management"
3078
3079 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3080 source "drivers/cpufreq/Kconfig"
3081 endif
3082
3083 source "drivers/cpuidle/Kconfig"
3084
3085 endmenu
3086
3087 source "net/Kconfig"
3088
3089 source "drivers/Kconfig"
3090
3091 source "drivers/firmware/Kconfig"
3092
3093 source "fs/Kconfig"
3094
3095 source "arch/mips/Kconfig.debug"
3096
3097 source "security/Kconfig"
3098
3099 source "crypto/Kconfig"
3100
3101 source "lib/Kconfig"
3102
3103 source "arch/mips/kvm/Kconfig"
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