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Merge branches 'acpi-fan', 'acpi-ec', 'acpi-drivers' and 'acpi-osl'
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1 config MIPS
2 bool
3 default y
4 select ARCH_SUPPORTS_UPROBES
5 select ARCH_MIGHT_HAVE_PC_PARPORT
6 select ARCH_MIGHT_HAVE_PC_SERIO
7 select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
8 select ARCH_USE_BUILTIN_BSWAP
9 select HAVE_CONTEXT_TRACKING
10 select HAVE_GENERIC_DMA_COHERENT
11 select HAVE_IDE
12 select HAVE_OPROFILE
13 select HAVE_PERF_EVENTS
14 select PERF_USE_VMALLOC
15 select HAVE_ARCH_KGDB
16 select HAVE_ARCH_SECCOMP_FILTER
17 select HAVE_ARCH_TRACEHOOK
18 select HAVE_CBPF_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 HAVE_NMI
52 select VIRT_TO_BUS
53 select MODULES_USE_ELF_REL if MODULES
54 select MODULES_USE_ELF_RELA if MODULES && 64BIT
55 select CLONE_BACKWARDS
56 select HAVE_DEBUG_STACKOVERFLOW
57 select HAVE_CC_STACKPROTECTOR
58 select CPU_PM if CPU_IDLE
59 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
60 select ARCH_BINFMT_ELF_STATE
61 select SYSCTL_EXCEPTION_TRACE
62 select HAVE_VIRT_CPU_ACCOUNTING_GEN
63 select HAVE_IRQ_TIME_ACCOUNTING
64 select GENERIC_TIME_VSYSCALL
65 select ARCH_CLOCKSOURCE_DATA
66 select HANDLE_DOMAIN_IRQ
67 select HAVE_EXIT_THREAD
68 select HAVE_REGS_AND_STACK_ACCESS_API
69
70 menu "Machine selection"
71
72 choice
73 prompt "System type"
74 default SGI_IP22
75
76 config MIPS_ALCHEMY
77 bool "Alchemy processor based machines"
78 select ARCH_PHYS_ADDR_T_64BIT
79 select CEVT_R4K
80 select CSRC_R4K
81 select IRQ_MIPS_CPU
82 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is
83 select SYS_HAS_CPU_MIPS32_R1
84 select SYS_SUPPORTS_32BIT_KERNEL
85 select SYS_SUPPORTS_APM_EMULATION
86 select GPIOLIB
87 select SYS_SUPPORTS_ZBOOT
88 select COMMON_CLK
89
90 config AR7
91 bool "Texas Instruments AR7"
92 select BOOT_ELF32
93 select DMA_NONCOHERENT
94 select CEVT_R4K
95 select CSRC_R4K
96 select IRQ_MIPS_CPU
97 select NO_EXCEPT_FILL
98 select SWAP_IO_SPACE
99 select SYS_HAS_CPU_MIPS32_R1
100 select SYS_HAS_EARLY_PRINTK
101 select SYS_SUPPORTS_32BIT_KERNEL
102 select SYS_SUPPORTS_LITTLE_ENDIAN
103 select SYS_SUPPORTS_MIPS16
104 select SYS_SUPPORTS_ZBOOT_UART16550
105 select GPIOLIB
106 select VLYNQ
107 select HAVE_CLK
108 help
109 Support for the Texas Instruments AR7 System-on-a-Chip
110 family: TNETD7100, 7200 and 7300.
111
112 config ATH25
113 bool "Atheros AR231x/AR531x SoC support"
114 select CEVT_R4K
115 select CSRC_R4K
116 select DMA_NONCOHERENT
117 select IRQ_MIPS_CPU
118 select IRQ_DOMAIN
119 select SYS_HAS_CPU_MIPS32_R1
120 select SYS_SUPPORTS_BIG_ENDIAN
121 select SYS_SUPPORTS_32BIT_KERNEL
122 select SYS_HAS_EARLY_PRINTK
123 help
124 Support for Atheros AR231x and Atheros AR531x based boards
125
126 config ATH79
127 bool "Atheros AR71XX/AR724X/AR913X based boards"
128 select ARCH_HAS_RESET_CONTROLLER
129 select BOOT_RAW
130 select CEVT_R4K
131 select CSRC_R4K
132 select DMA_NONCOHERENT
133 select GPIOLIB
134 select HAVE_CLK
135 select COMMON_CLK
136 select CLKDEV_LOOKUP
137 select IRQ_MIPS_CPU
138 select MIPS_MACHINE
139 select SYS_HAS_CPU_MIPS32_R2
140 select SYS_HAS_EARLY_PRINTK
141 select SYS_SUPPORTS_32BIT_KERNEL
142 select SYS_SUPPORTS_BIG_ENDIAN
143 select SYS_SUPPORTS_MIPS16
144 select SYS_SUPPORTS_ZBOOT_UART_PROM
145 select USE_OF
146 help
147 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
148
149 config BMIPS_GENERIC
150 bool "Broadcom Generic BMIPS kernel"
151 select BOOT_RAW
152 select NO_EXCEPT_FILL
153 select USE_OF
154 select CEVT_R4K
155 select CSRC_R4K
156 select SYNC_R4K
157 select COMMON_CLK
158 select BCM6345_L1_IRQ
159 select BCM7038_L1_IRQ
160 select BCM7120_L2_IRQ
161 select BRCMSTB_L2_IRQ
162 select IRQ_MIPS_CPU
163 select DMA_NONCOHERENT
164 select SYS_SUPPORTS_32BIT_KERNEL
165 select SYS_SUPPORTS_LITTLE_ENDIAN
166 select SYS_SUPPORTS_BIG_ENDIAN
167 select SYS_SUPPORTS_HIGHMEM
168 select SYS_HAS_CPU_BMIPS32_3300
169 select SYS_HAS_CPU_BMIPS4350
170 select SYS_HAS_CPU_BMIPS4380
171 select SYS_HAS_CPU_BMIPS5000
172 select SWAP_IO_SPACE
173 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
174 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
175 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
176 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
177 help
178 Build a generic DT-based kernel image that boots on select
179 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
180 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
181 must be set appropriately for your board.
182
183 config BCM47XX
184 bool "Broadcom BCM47XX based boards"
185 select BOOT_RAW
186 select CEVT_R4K
187 select CSRC_R4K
188 select DMA_NONCOHERENT
189 select HW_HAS_PCI
190 select IRQ_MIPS_CPU
191 select SYS_HAS_CPU_MIPS32_R1
192 select NO_EXCEPT_FILL
193 select SYS_SUPPORTS_32BIT_KERNEL
194 select SYS_SUPPORTS_LITTLE_ENDIAN
195 select SYS_SUPPORTS_MIPS16
196 select SYS_HAS_EARLY_PRINTK
197 select USE_GENERIC_EARLY_PRINTK_8250
198 select GPIOLIB
199 select LEDS_GPIO_REGISTER
200 select BCM47XX_NVRAM
201 select BCM47XX_SPROM
202 help
203 Support for BCM47XX based boards
204
205 config BCM63XX
206 bool "Broadcom BCM63XX based boards"
207 select BOOT_RAW
208 select CEVT_R4K
209 select CSRC_R4K
210 select SYNC_R4K
211 select DMA_NONCOHERENT
212 select IRQ_MIPS_CPU
213 select SYS_SUPPORTS_32BIT_KERNEL
214 select SYS_SUPPORTS_BIG_ENDIAN
215 select SYS_HAS_EARLY_PRINTK
216 select SWAP_IO_SPACE
217 select GPIOLIB
218 select HAVE_CLK
219 select MIPS_L1_CACHE_SHIFT_4
220 help
221 Support for BCM63XX based boards
222
223 config MIPS_COBALT
224 bool "Cobalt Server"
225 select CEVT_R4K
226 select CSRC_R4K
227 select CEVT_GT641XX
228 select DMA_NONCOHERENT
229 select HW_HAS_PCI
230 select I8253
231 select I8259
232 select IRQ_MIPS_CPU
233 select IRQ_GT641XX
234 select PCI_GT64XXX_PCI0
235 select PCI
236 select SYS_HAS_CPU_NEVADA
237 select SYS_HAS_EARLY_PRINTK
238 select SYS_SUPPORTS_32BIT_KERNEL
239 select SYS_SUPPORTS_64BIT_KERNEL
240 select SYS_SUPPORTS_LITTLE_ENDIAN
241 select USE_GENERIC_EARLY_PRINTK_8250
242
243 config MACH_DECSTATION
244 bool "DECstations"
245 select BOOT_ELF32
246 select CEVT_DS1287
247 select CEVT_R4K if CPU_R4X00
248 select CSRC_IOASIC
249 select CSRC_R4K if CPU_R4X00
250 select CPU_DADDI_WORKAROUNDS if 64BIT
251 select CPU_R4000_WORKAROUNDS if 64BIT
252 select CPU_R4400_WORKAROUNDS if 64BIT
253 select DMA_NONCOHERENT
254 select NO_IOPORT_MAP
255 select IRQ_MIPS_CPU
256 select SYS_HAS_CPU_R3000
257 select SYS_HAS_CPU_R4X00
258 select SYS_SUPPORTS_32BIT_KERNEL
259 select SYS_SUPPORTS_64BIT_KERNEL
260 select SYS_SUPPORTS_LITTLE_ENDIAN
261 select SYS_SUPPORTS_128HZ
262 select SYS_SUPPORTS_256HZ
263 select SYS_SUPPORTS_1024HZ
264 select MIPS_L1_CACHE_SHIFT_4
265 help
266 This enables support for DEC's MIPS based workstations. For details
267 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
268 DECstation porting pages on <http://decstation.unix-ag.org/>.
269
270 If you have one of the following DECstation Models you definitely
271 want to choose R4xx0 for the CPU Type:
272
273 DECstation 5000/50
274 DECstation 5000/150
275 DECstation 5000/260
276 DECsystem 5900/260
277
278 otherwise choose R3000.
279
280 config MACH_JAZZ
281 bool "Jazz family of machines"
282 select FW_ARC
283 select FW_ARC32
284 select ARCH_MAY_HAVE_PC_FDC
285 select CEVT_R4K
286 select CSRC_R4K
287 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
288 select GENERIC_ISA_DMA
289 select HAVE_PCSPKR_PLATFORM
290 select IRQ_MIPS_CPU
291 select I8253
292 select I8259
293 select ISA
294 select SYS_HAS_CPU_R4X00
295 select SYS_SUPPORTS_32BIT_KERNEL
296 select SYS_SUPPORTS_64BIT_KERNEL
297 select SYS_SUPPORTS_100HZ
298 help
299 This a family of machines based on the MIPS R4030 chipset which was
300 used by several vendors to build RISC/os and Windows NT workstations.
301 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
302 Olivetti M700-10 workstations.
303
304 config MACH_INGENIC
305 bool "Ingenic SoC based machines"
306 select SYS_SUPPORTS_32BIT_KERNEL
307 select SYS_SUPPORTS_LITTLE_ENDIAN
308 select SYS_SUPPORTS_ZBOOT_UART16550
309 select DMA_NONCOHERENT
310 select IRQ_MIPS_CPU
311 select GPIOLIB
312 select COMMON_CLK
313 select GENERIC_IRQ_CHIP
314 select BUILTIN_DTB
315 select USE_OF
316 select LIBFDT
317
318 config LANTIQ
319 bool "Lantiq based platforms"
320 select DMA_NONCOHERENT
321 select IRQ_MIPS_CPU
322 select CEVT_R4K
323 select CSRC_R4K
324 select SYS_HAS_CPU_MIPS32_R1
325 select SYS_HAS_CPU_MIPS32_R2
326 select SYS_SUPPORTS_BIG_ENDIAN
327 select SYS_SUPPORTS_32BIT_KERNEL
328 select SYS_SUPPORTS_MIPS16
329 select SYS_SUPPORTS_MULTITHREADING
330 select SYS_HAS_EARLY_PRINTK
331 select GPIOLIB
332 select SWAP_IO_SPACE
333 select BOOT_RAW
334 select CLKDEV_LOOKUP
335 select USE_OF
336 select PINCTRL
337 select PINCTRL_LANTIQ
338 select ARCH_HAS_RESET_CONTROLLER
339 select RESET_CONTROLLER
340
341 config LASAT
342 bool "LASAT Networks platforms"
343 select CEVT_R4K
344 select CRC32
345 select CSRC_R4K
346 select DMA_NONCOHERENT
347 select SYS_HAS_EARLY_PRINTK
348 select HW_HAS_PCI
349 select IRQ_MIPS_CPU
350 select PCI_GT64XXX_PCI0
351 select MIPS_NILE4
352 select R5000_CPU_SCACHE
353 select SYS_HAS_CPU_R5000
354 select SYS_SUPPORTS_32BIT_KERNEL
355 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
356 select SYS_SUPPORTS_LITTLE_ENDIAN
357
358 config MACH_LOONGSON32
359 bool "Loongson-1 family of machines"
360 select SYS_SUPPORTS_ZBOOT
361 help
362 This enables support for the Loongson-1 family of machines.
363
364 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
365 the Institute of Computing Technology (ICT), Chinese Academy of
366 Sciences (CAS).
367
368 config MACH_LOONGSON64
369 bool "Loongson-2/3 family of machines"
370 select SYS_SUPPORTS_ZBOOT
371 help
372 This enables the support of Loongson-2/3 family of machines.
373
374 Loongson-2 is a family of single-core CPUs and Loongson-3 is a
375 family of multi-core CPUs. They are both 64-bit general-purpose
376 MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute
377 of Computing Technology (ICT), Chinese Academy of Sciences (CAS)
378 in the People's Republic of China. The chief architect is Professor
379 Weiwu Hu.
380
381 config MACH_PISTACHIO
382 bool "IMG Pistachio SoC based boards"
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_NONCOHERENT
390 select GPIOLIB
391 select IRQ_MIPS_CPU
392 select LIBFDT
393 select MFD_SYSCON
394 select MIPS_CPU_SCACHE
395 select MIPS_GIC
396 select PINCTRL
397 select REGULATOR
398 select SYS_HAS_CPU_MIPS32_R2
399 select SYS_SUPPORTS_32BIT_KERNEL
400 select SYS_SUPPORTS_LITTLE_ENDIAN
401 select SYS_SUPPORTS_MIPS_CPS
402 select SYS_SUPPORTS_MULTITHREADING
403 select SYS_SUPPORTS_RELOCATABLE
404 select SYS_SUPPORTS_ZBOOT
405 select SYS_HAS_EARLY_PRINTK
406 select USE_GENERIC_EARLY_PRINTK_8250
407 select USE_OF
408 help
409 This enables support for the IMG Pistachio SoC platform.
410
411 config MACH_XILFPGA
412 bool "MIPSfpga Xilinx based boards"
413 select BOOT_ELF32
414 select BOOT_RAW
415 select BUILTIN_DTB
416 select CEVT_R4K
417 select COMMON_CLK
418 select CSRC_R4K
419 select GPIOLIB
420 select IRQ_MIPS_CPU
421 select LIBFDT
422 select MIPS_CPU_SCACHE
423 select SYS_HAS_EARLY_PRINTK
424 select SYS_HAS_CPU_MIPS32_R2
425 select SYS_SUPPORTS_32BIT_KERNEL
426 select SYS_SUPPORTS_LITTLE_ENDIAN
427 select SYS_SUPPORTS_ZBOOT_UART16550
428 select USE_OF
429 select USE_GENERIC_EARLY_PRINTK_8250
430 help
431 This enables support for the IMG University Program MIPSfpga platform.
432
433 config MIPS_MALTA
434 bool "MIPS Malta board"
435 select ARCH_MAY_HAVE_PC_FDC
436 select BOOT_ELF32
437 select BOOT_RAW
438 select BUILTIN_DTB
439 select CEVT_R4K
440 select CSRC_R4K
441 select CLKSRC_MIPS_GIC
442 select COMMON_CLK
443 select DMA_MAYBE_COHERENT
444 select GENERIC_ISA_DMA
445 select HAVE_PCSPKR_PLATFORM
446 select IRQ_MIPS_CPU
447 select MIPS_GIC
448 select HW_HAS_PCI
449 select I8253
450 select I8259
451 select MIPS_BONITO64
452 select MIPS_CPU_SCACHE
453 select MIPS_L1_CACHE_SHIFT_6
454 select PCI_GT64XXX_PCI0
455 select MIPS_MSC
456 select SMP_UP if SMP
457 select SWAP_IO_SPACE
458 select SYS_HAS_CPU_MIPS32_R1
459 select SYS_HAS_CPU_MIPS32_R2
460 select SYS_HAS_CPU_MIPS32_R3_5
461 select SYS_HAS_CPU_MIPS32_R5
462 select SYS_HAS_CPU_MIPS32_R6
463 select SYS_HAS_CPU_MIPS64_R1
464 select SYS_HAS_CPU_MIPS64_R2
465 select SYS_HAS_CPU_MIPS64_R6
466 select SYS_HAS_CPU_NEVADA
467 select SYS_HAS_CPU_RM7000
468 select SYS_SUPPORTS_32BIT_KERNEL
469 select SYS_SUPPORTS_64BIT_KERNEL
470 select SYS_SUPPORTS_BIG_ENDIAN
471 select SYS_SUPPORTS_HIGHMEM
472 select SYS_SUPPORTS_LITTLE_ENDIAN
473 select SYS_SUPPORTS_MICROMIPS
474 select SYS_SUPPORTS_MIPS_CMP
475 select SYS_SUPPORTS_MIPS_CPS
476 select SYS_SUPPORTS_MIPS16
477 select SYS_SUPPORTS_MULTITHREADING
478 select SYS_SUPPORTS_SMARTMIPS
479 select SYS_SUPPORTS_ZBOOT
480 select SYS_SUPPORTS_RELOCATABLE
481 select USE_OF
482 select ZONE_DMA32 if 64BIT
483 select BUILTIN_DTB
484 select LIBFDT
485 help
486 This enables support for the MIPS Technologies Malta evaluation
487 board.
488
489 config MACH_PIC32
490 bool "Microchip PIC32 Family"
491 help
492 This enables support for the Microchip PIC32 family of platforms.
493
494 Microchip PIC32 is a family of general-purpose 32 bit MIPS core
495 microcontrollers.
496
497 config MIPS_SEAD3
498 bool "MIPS SEAD3 board"
499 select BOOT_ELF32
500 select BOOT_RAW
501 select BUILTIN_DTB
502 select CEVT_R4K
503 select CSRC_R4K
504 select CLKSRC_MIPS_GIC
505 select COMMON_CLK
506 select CPU_MIPSR2_IRQ_VI
507 select CPU_MIPSR2_IRQ_EI
508 select DMA_NONCOHERENT
509 select IRQ_MIPS_CPU
510 select MIPS_GIC
511 select LIBFDT
512 select MIPS_MSC
513 select SYS_HAS_CPU_MIPS32_R1
514 select SYS_HAS_CPU_MIPS32_R2
515 select SYS_HAS_CPU_MIPS32_R6
516 select SYS_HAS_CPU_MIPS64_R1
517 select SYS_HAS_EARLY_PRINTK
518 select SYS_SUPPORTS_32BIT_KERNEL
519 select SYS_SUPPORTS_64BIT_KERNEL
520 select SYS_SUPPORTS_BIG_ENDIAN
521 select SYS_SUPPORTS_LITTLE_ENDIAN
522 select SYS_SUPPORTS_SMARTMIPS
523 select SYS_SUPPORTS_MICROMIPS
524 select SYS_SUPPORTS_MIPS16
525 select SYS_SUPPORTS_RELOCATABLE
526 select USB_EHCI_BIG_ENDIAN_DESC
527 select USB_EHCI_BIG_ENDIAN_MMIO
528 select USE_OF
529 help
530 This enables support for the MIPS Technologies SEAD3 evaluation
531 board.
532
533 config NEC_MARKEINS
534 bool "NEC EMMA2RH Mark-eins board"
535 select SOC_EMMA2RH
536 select HW_HAS_PCI
537 help
538 This enables support for the NEC Electronics Mark-eins boards.
539
540 config MACH_VR41XX
541 bool "NEC VR4100 series based machines"
542 select CEVT_R4K
543 select CSRC_R4K
544 select SYS_HAS_CPU_VR41XX
545 select SYS_SUPPORTS_MIPS16
546 select GPIOLIB
547
548 config NXP_STB220
549 bool "NXP STB220 board"
550 select SOC_PNX833X
551 help
552 Support for NXP Semiconductors STB220 Development Board.
553
554 config NXP_STB225
555 bool "NXP 225 board"
556 select SOC_PNX833X
557 select SOC_PNX8335
558 help
559 Support for NXP Semiconductors STB225 Development Board.
560
561 config PMC_MSP
562 bool "PMC-Sierra MSP chipsets"
563 select CEVT_R4K
564 select CSRC_R4K
565 select DMA_NONCOHERENT
566 select SWAP_IO_SPACE
567 select NO_EXCEPT_FILL
568 select BOOT_RAW
569 select SYS_HAS_CPU_MIPS32_R1
570 select SYS_HAS_CPU_MIPS32_R2
571 select SYS_SUPPORTS_32BIT_KERNEL
572 select SYS_SUPPORTS_BIG_ENDIAN
573 select SYS_SUPPORTS_MIPS16
574 select IRQ_MIPS_CPU
575 select SERIAL_8250
576 select SERIAL_8250_CONSOLE
577 select USB_EHCI_BIG_ENDIAN_MMIO
578 select USB_EHCI_BIG_ENDIAN_DESC
579 help
580 This adds support for the PMC-Sierra family of Multi-Service
581 Processor System-On-A-Chips. These parts include a number
582 of integrated peripherals, interfaces and DSPs in addition to
583 a variety of MIPS cores.
584
585 config RALINK
586 bool "Ralink based machines"
587 select CEVT_R4K
588 select CSRC_R4K
589 select BOOT_RAW
590 select DMA_NONCOHERENT
591 select IRQ_MIPS_CPU
592 select USE_OF
593 select SYS_HAS_CPU_MIPS32_R1
594 select SYS_HAS_CPU_MIPS32_R2
595 select SYS_SUPPORTS_32BIT_KERNEL
596 select SYS_SUPPORTS_LITTLE_ENDIAN
597 select SYS_SUPPORTS_MIPS16
598 select SYS_HAS_EARLY_PRINTK
599 select CLKDEV_LOOKUP
600 select ARCH_HAS_RESET_CONTROLLER
601 select RESET_CONTROLLER
602
603 config SGI_IP22
604 bool "SGI IP22 (Indy/Indigo2)"
605 select FW_ARC
606 select FW_ARC32
607 select BOOT_ELF32
608 select CEVT_R4K
609 select CSRC_R4K
610 select DEFAULT_SGI_PARTITION
611 select DMA_NONCOHERENT
612 select HW_HAS_EISA
613 select I8253
614 select I8259
615 select IP22_CPU_SCACHE
616 select IRQ_MIPS_CPU
617 select GENERIC_ISA_DMA_SUPPORT_BROKEN
618 select SGI_HAS_I8042
619 select SGI_HAS_INDYDOG
620 select SGI_HAS_HAL2
621 select SGI_HAS_SEEQ
622 select SGI_HAS_WD93
623 select SGI_HAS_ZILOG
624 select SWAP_IO_SPACE
625 select SYS_HAS_CPU_R4X00
626 select SYS_HAS_CPU_R5000
627 #
628 # Disable EARLY_PRINTK for now since it leads to overwritten prom
629 # memory during early boot on some machines.
630 #
631 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
632 # for a more details discussion
633 #
634 # select SYS_HAS_EARLY_PRINTK
635 select SYS_SUPPORTS_32BIT_KERNEL
636 select SYS_SUPPORTS_64BIT_KERNEL
637 select SYS_SUPPORTS_BIG_ENDIAN
638 select MIPS_L1_CACHE_SHIFT_7
639 help
640 This are the SGI Indy, Challenge S and Indigo2, as well as certain
641 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
642 that runs on these, say Y here.
643
644 config SGI_IP27
645 bool "SGI IP27 (Origin200/2000)"
646 select FW_ARC
647 select FW_ARC64
648 select BOOT_ELF64
649 select DEFAULT_SGI_PARTITION
650 select DMA_COHERENT
651 select SYS_HAS_EARLY_PRINTK
652 select HW_HAS_PCI
653 select NR_CPUS_DEFAULT_64
654 select SYS_HAS_CPU_R10000
655 select SYS_SUPPORTS_64BIT_KERNEL
656 select SYS_SUPPORTS_BIG_ENDIAN
657 select SYS_SUPPORTS_NUMA
658 select SYS_SUPPORTS_SMP
659 select MIPS_L1_CACHE_SHIFT_7
660 help
661 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
662 workstations. To compile a Linux kernel that runs on these, say Y
663 here.
664
665 config SGI_IP28
666 bool "SGI IP28 (Indigo2 R10k)"
667 select FW_ARC
668 select FW_ARC64
669 select BOOT_ELF64
670 select CEVT_R4K
671 select CSRC_R4K
672 select DEFAULT_SGI_PARTITION
673 select DMA_NONCOHERENT
674 select GENERIC_ISA_DMA_SUPPORT_BROKEN
675 select IRQ_MIPS_CPU
676 select HW_HAS_EISA
677 select I8253
678 select I8259
679 select SGI_HAS_I8042
680 select SGI_HAS_INDYDOG
681 select SGI_HAS_HAL2
682 select SGI_HAS_SEEQ
683 select SGI_HAS_WD93
684 select SGI_HAS_ZILOG
685 select SWAP_IO_SPACE
686 select SYS_HAS_CPU_R10000
687 #
688 # Disable EARLY_PRINTK for now since it leads to overwritten prom
689 # memory during early boot on some machines.
690 #
691 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
692 # for a more details discussion
693 #
694 # select SYS_HAS_EARLY_PRINTK
695 select SYS_SUPPORTS_64BIT_KERNEL
696 select SYS_SUPPORTS_BIG_ENDIAN
697 select MIPS_L1_CACHE_SHIFT_7
698 help
699 This is the SGI Indigo2 with R10000 processor. To compile a Linux
700 kernel that runs on these, say Y here.
701
702 config SGI_IP32
703 bool "SGI IP32 (O2)"
704 select FW_ARC
705 select FW_ARC32
706 select BOOT_ELF32
707 select CEVT_R4K
708 select CSRC_R4K
709 select DMA_NONCOHERENT
710 select HW_HAS_PCI
711 select IRQ_MIPS_CPU
712 select R5000_CPU_SCACHE
713 select RM7000_CPU_SCACHE
714 select SYS_HAS_CPU_R5000
715 select SYS_HAS_CPU_R10000 if BROKEN
716 select SYS_HAS_CPU_RM7000
717 select SYS_HAS_CPU_NEVADA
718 select SYS_SUPPORTS_64BIT_KERNEL
719 select SYS_SUPPORTS_BIG_ENDIAN
720 help
721 If you want this kernel to run on SGI O2 workstation, say Y here.
722
723 config SIBYTE_CRHINE
724 bool "Sibyte BCM91120C-CRhine"
725 select BOOT_ELF32
726 select DMA_COHERENT
727 select SIBYTE_BCM1120
728 select SWAP_IO_SPACE
729 select SYS_HAS_CPU_SB1
730 select SYS_SUPPORTS_BIG_ENDIAN
731 select SYS_SUPPORTS_LITTLE_ENDIAN
732
733 config SIBYTE_CARMEL
734 bool "Sibyte BCM91120x-Carmel"
735 select BOOT_ELF32
736 select DMA_COHERENT
737 select SIBYTE_BCM1120
738 select SWAP_IO_SPACE
739 select SYS_HAS_CPU_SB1
740 select SYS_SUPPORTS_BIG_ENDIAN
741 select SYS_SUPPORTS_LITTLE_ENDIAN
742
743 config SIBYTE_CRHONE
744 bool "Sibyte BCM91125C-CRhone"
745 select BOOT_ELF32
746 select DMA_COHERENT
747 select SIBYTE_BCM1125
748 select SWAP_IO_SPACE
749 select SYS_HAS_CPU_SB1
750 select SYS_SUPPORTS_BIG_ENDIAN
751 select SYS_SUPPORTS_HIGHMEM
752 select SYS_SUPPORTS_LITTLE_ENDIAN
753
754 config SIBYTE_RHONE
755 bool "Sibyte BCM91125E-Rhone"
756 select BOOT_ELF32
757 select DMA_COHERENT
758 select SIBYTE_BCM1125H
759 select SWAP_IO_SPACE
760 select SYS_HAS_CPU_SB1
761 select SYS_SUPPORTS_BIG_ENDIAN
762 select SYS_SUPPORTS_LITTLE_ENDIAN
763
764 config SIBYTE_SWARM
765 bool "Sibyte BCM91250A-SWARM"
766 select BOOT_ELF32
767 select DMA_COHERENT
768 select HAVE_PATA_PLATFORM
769 select SIBYTE_SB1250
770 select SWAP_IO_SPACE
771 select SYS_HAS_CPU_SB1
772 select SYS_SUPPORTS_BIG_ENDIAN
773 select SYS_SUPPORTS_HIGHMEM
774 select SYS_SUPPORTS_LITTLE_ENDIAN
775 select ZONE_DMA32 if 64BIT
776
777 config SIBYTE_LITTLESUR
778 bool "Sibyte BCM91250C2-LittleSur"
779 select BOOT_ELF32
780 select DMA_COHERENT
781 select HAVE_PATA_PLATFORM
782 select SIBYTE_SB1250
783 select SWAP_IO_SPACE
784 select SYS_HAS_CPU_SB1
785 select SYS_SUPPORTS_BIG_ENDIAN
786 select SYS_SUPPORTS_HIGHMEM
787 select SYS_SUPPORTS_LITTLE_ENDIAN
788
789 config SIBYTE_SENTOSA
790 bool "Sibyte BCM91250E-Sentosa"
791 select BOOT_ELF32
792 select DMA_COHERENT
793 select SIBYTE_SB1250
794 select SWAP_IO_SPACE
795 select SYS_HAS_CPU_SB1
796 select SYS_SUPPORTS_BIG_ENDIAN
797 select SYS_SUPPORTS_LITTLE_ENDIAN
798
799 config SIBYTE_BIGSUR
800 bool "Sibyte BCM91480B-BigSur"
801 select BOOT_ELF32
802 select DMA_COHERENT
803 select NR_CPUS_DEFAULT_4
804 select SIBYTE_BCM1x80
805 select SWAP_IO_SPACE
806 select SYS_HAS_CPU_SB1
807 select SYS_SUPPORTS_BIG_ENDIAN
808 select SYS_SUPPORTS_HIGHMEM
809 select SYS_SUPPORTS_LITTLE_ENDIAN
810 select ZONE_DMA32 if 64BIT
811
812 config SNI_RM
813 bool "SNI RM200/300/400"
814 select FW_ARC if CPU_LITTLE_ENDIAN
815 select FW_ARC32 if CPU_LITTLE_ENDIAN
816 select FW_SNIPROM if CPU_BIG_ENDIAN
817 select ARCH_MAY_HAVE_PC_FDC
818 select BOOT_ELF32
819 select CEVT_R4K
820 select CSRC_R4K
821 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
822 select DMA_NONCOHERENT
823 select GENERIC_ISA_DMA
824 select HAVE_PCSPKR_PLATFORM
825 select HW_HAS_EISA
826 select HW_HAS_PCI
827 select IRQ_MIPS_CPU
828 select I8253
829 select I8259
830 select ISA
831 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
832 select SYS_HAS_CPU_R4X00
833 select SYS_HAS_CPU_R5000
834 select SYS_HAS_CPU_R10000
835 select R5000_CPU_SCACHE
836 select SYS_HAS_EARLY_PRINTK
837 select SYS_SUPPORTS_32BIT_KERNEL
838 select SYS_SUPPORTS_64BIT_KERNEL
839 select SYS_SUPPORTS_BIG_ENDIAN
840 select SYS_SUPPORTS_HIGHMEM
841 select SYS_SUPPORTS_LITTLE_ENDIAN
842 help
843 The SNI RM200/300/400 are MIPS-based machines manufactured by
844 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
845 Technology and now in turn merged with Fujitsu. Say Y here to
846 support this machine type.
847
848 config MACH_TX39XX
849 bool "Toshiba TX39 series based machines"
850
851 config MACH_TX49XX
852 bool "Toshiba TX49 series based machines"
853
854 config MIKROTIK_RB532
855 bool "Mikrotik RB532 boards"
856 select CEVT_R4K
857 select CSRC_R4K
858 select DMA_NONCOHERENT
859 select HW_HAS_PCI
860 select IRQ_MIPS_CPU
861 select SYS_HAS_CPU_MIPS32_R1
862 select SYS_SUPPORTS_32BIT_KERNEL
863 select SYS_SUPPORTS_LITTLE_ENDIAN
864 select SWAP_IO_SPACE
865 select BOOT_RAW
866 select GPIOLIB
867 select MIPS_L1_CACHE_SHIFT_4
868 help
869 Support the Mikrotik(tm) RouterBoard 532 series,
870 based on the IDT RC32434 SoC.
871
872 config CAVIUM_OCTEON_SOC
873 bool "Cavium Networks Octeon SoC based boards"
874 select CEVT_R4K
875 select ARCH_PHYS_ADDR_T_64BIT
876 select DMA_COHERENT
877 select SYS_SUPPORTS_64BIT_KERNEL
878 select SYS_SUPPORTS_BIG_ENDIAN
879 select EDAC_SUPPORT
880 select EDAC_ATOMIC_SCRUB
881 select SYS_SUPPORTS_LITTLE_ENDIAN
882 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
883 select SYS_HAS_EARLY_PRINTK
884 select SYS_HAS_CPU_CAVIUM_OCTEON
885 select HW_HAS_PCI
886 select ZONE_DMA32
887 select HOLES_IN_ZONE
888 select GPIOLIB
889 select LIBFDT
890 select USE_OF
891 select ARCH_SPARSEMEM_ENABLE
892 select SYS_SUPPORTS_SMP
893 select NR_CPUS_DEFAULT_16
894 select BUILTIN_DTB
895 select MTD_COMPLEX_MAPPINGS
896 help
897 This option supports all of the Octeon reference boards from Cavium
898 Networks. It builds a kernel that dynamically determines the Octeon
899 CPU type and supports all known board reference implementations.
900 Some of the supported boards are:
901 EBT3000
902 EBH3000
903 EBH3100
904 Thunder
905 Kodama
906 Hikari
907 Say Y here for most Octeon reference boards.
908
909 config NLM_XLR_BOARD
910 bool "Netlogic XLR/XLS based systems"
911 select BOOT_ELF32
912 select NLM_COMMON
913 select SYS_HAS_CPU_XLR
914 select SYS_SUPPORTS_SMP
915 select HW_HAS_PCI
916 select SWAP_IO_SPACE
917 select SYS_SUPPORTS_32BIT_KERNEL
918 select SYS_SUPPORTS_64BIT_KERNEL
919 select ARCH_PHYS_ADDR_T_64BIT
920 select SYS_SUPPORTS_BIG_ENDIAN
921 select SYS_SUPPORTS_HIGHMEM
922 select DMA_COHERENT
923 select NR_CPUS_DEFAULT_32
924 select CEVT_R4K
925 select CSRC_R4K
926 select IRQ_MIPS_CPU
927 select ZONE_DMA32 if 64BIT
928 select SYNC_R4K
929 select SYS_HAS_EARLY_PRINTK
930 select SYS_SUPPORTS_ZBOOT
931 select SYS_SUPPORTS_ZBOOT_UART16550
932 help
933 Support for systems based on Netlogic XLR and XLS processors.
934 Say Y here if you have a XLR or XLS based board.
935
936 config NLM_XLP_BOARD
937 bool "Netlogic XLP based systems"
938 select BOOT_ELF32
939 select NLM_COMMON
940 select SYS_HAS_CPU_XLP
941 select SYS_SUPPORTS_SMP
942 select HW_HAS_PCI
943 select SYS_SUPPORTS_32BIT_KERNEL
944 select SYS_SUPPORTS_64BIT_KERNEL
945 select ARCH_PHYS_ADDR_T_64BIT
946 select GPIOLIB
947 select SYS_SUPPORTS_BIG_ENDIAN
948 select SYS_SUPPORTS_LITTLE_ENDIAN
949 select SYS_SUPPORTS_HIGHMEM
950 select DMA_COHERENT
951 select NR_CPUS_DEFAULT_32
952 select CEVT_R4K
953 select CSRC_R4K
954 select IRQ_MIPS_CPU
955 select ZONE_DMA32 if 64BIT
956 select SYNC_R4K
957 select SYS_HAS_EARLY_PRINTK
958 select USE_OF
959 select SYS_SUPPORTS_ZBOOT
960 select SYS_SUPPORTS_ZBOOT_UART16550
961 help
962 This board is based on Netlogic XLP Processor.
963 Say Y here if you have a XLP based board.
964
965 config MIPS_PARAVIRT
966 bool "Para-Virtualized guest system"
967 select CEVT_R4K
968 select CSRC_R4K
969 select DMA_COHERENT
970 select SYS_SUPPORTS_64BIT_KERNEL
971 select SYS_SUPPORTS_32BIT_KERNEL
972 select SYS_SUPPORTS_BIG_ENDIAN
973 select SYS_SUPPORTS_SMP
974 select NR_CPUS_DEFAULT_4
975 select SYS_HAS_EARLY_PRINTK
976 select SYS_HAS_CPU_MIPS32_R2
977 select SYS_HAS_CPU_MIPS64_R2
978 select SYS_HAS_CPU_CAVIUM_OCTEON
979 select HW_HAS_PCI
980 select SWAP_IO_SPACE
981 help
982 This option supports guest running under ????
983
984 endchoice
985
986 source "arch/mips/alchemy/Kconfig"
987 source "arch/mips/ath25/Kconfig"
988 source "arch/mips/ath79/Kconfig"
989 source "arch/mips/bcm47xx/Kconfig"
990 source "arch/mips/bcm63xx/Kconfig"
991 source "arch/mips/bmips/Kconfig"
992 source "arch/mips/jazz/Kconfig"
993 source "arch/mips/jz4740/Kconfig"
994 source "arch/mips/lantiq/Kconfig"
995 source "arch/mips/lasat/Kconfig"
996 source "arch/mips/pic32/Kconfig"
997 source "arch/mips/pistachio/Kconfig"
998 source "arch/mips/pmcs-msp71xx/Kconfig"
999 source "arch/mips/ralink/Kconfig"
1000 source "arch/mips/sgi-ip27/Kconfig"
1001 source "arch/mips/sibyte/Kconfig"
1002 source "arch/mips/txx9/Kconfig"
1003 source "arch/mips/vr41xx/Kconfig"
1004 source "arch/mips/cavium-octeon/Kconfig"
1005 source "arch/mips/loongson32/Kconfig"
1006 source "arch/mips/loongson64/Kconfig"
1007 source "arch/mips/netlogic/Kconfig"
1008 source "arch/mips/paravirt/Kconfig"
1009 source "arch/mips/xilfpga/Kconfig"
1010
1011 endmenu
1012
1013 config RWSEM_GENERIC_SPINLOCK
1014 bool
1015 default y
1016
1017 config RWSEM_XCHGADD_ALGORITHM
1018 bool
1019
1020 config ARCH_HAS_ILOG2_U32
1021 bool
1022 default n
1023
1024 config ARCH_HAS_ILOG2_U64
1025 bool
1026 default n
1027
1028 config GENERIC_HWEIGHT
1029 bool
1030 default y
1031
1032 config GENERIC_CALIBRATE_DELAY
1033 bool
1034 default y
1035
1036 config SCHED_OMIT_FRAME_POINTER
1037 bool
1038 default y
1039
1040 #
1041 # Select some configuration options automatically based on user selections.
1042 #
1043 config FW_ARC
1044 bool
1045
1046 config ARCH_MAY_HAVE_PC_FDC
1047 bool
1048
1049 config BOOT_RAW
1050 bool
1051
1052 config CEVT_BCM1480
1053 bool
1054
1055 config CEVT_DS1287
1056 bool
1057
1058 config CEVT_GT641XX
1059 bool
1060
1061 config CEVT_R4K
1062 bool
1063
1064 config CEVT_SB1250
1065 bool
1066
1067 config CEVT_TXX9
1068 bool
1069
1070 config CSRC_BCM1480
1071 bool
1072
1073 config CSRC_IOASIC
1074 bool
1075
1076 config CSRC_R4K
1077 bool
1078
1079 config CSRC_SB1250
1080 bool
1081
1082 config MIPS_CLOCK_VSYSCALL
1083 def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1084
1085 config GPIO_TXX9
1086 select GPIOLIB
1087 bool
1088
1089 config FW_CFE
1090 bool
1091
1092 config ARCH_DMA_ADDR_T_64BIT
1093 def_bool (HIGHMEM && ARCH_PHYS_ADDR_T_64BIT) || 64BIT
1094
1095 config ARCH_SUPPORTS_UPROBES
1096 bool
1097
1098 config DMA_MAYBE_COHERENT
1099 select DMA_NONCOHERENT
1100 bool
1101
1102 config DMA_COHERENT
1103 bool
1104
1105 config DMA_NONCOHERENT
1106 bool
1107 select NEED_DMA_MAP_STATE
1108
1109 config NEED_DMA_MAP_STATE
1110 bool
1111
1112 config SYS_HAS_EARLY_PRINTK
1113 bool
1114
1115 config SYS_SUPPORTS_HOTPLUG_CPU
1116 bool
1117
1118 config MIPS_BONITO64
1119 bool
1120
1121 config MIPS_MSC
1122 bool
1123
1124 config MIPS_NILE4
1125 bool
1126
1127 config SYNC_R4K
1128 bool
1129
1130 config MIPS_MACHINE
1131 def_bool n
1132
1133 config NO_IOPORT_MAP
1134 def_bool n
1135
1136 config GENERIC_CSUM
1137 bool
1138
1139 config GENERIC_ISA_DMA
1140 bool
1141 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1142 select ISA_DMA_API
1143
1144 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1145 bool
1146 select GENERIC_ISA_DMA
1147
1148 config ISA_DMA_API
1149 bool
1150
1151 config HOLES_IN_ZONE
1152 bool
1153
1154 config SYS_SUPPORTS_RELOCATABLE
1155 bool
1156 help
1157 Selected if the platform supports relocating the kernel.
1158 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1159 to allow access to command line and entropy sources.
1160
1161 #
1162 # Endianness selection. Sufficiently obscure so many users don't know what to
1163 # answer,so we try hard to limit the available choices. Also the use of a
1164 # choice statement should be more obvious to the user.
1165 #
1166 choice
1167 prompt "Endianness selection"
1168 help
1169 Some MIPS machines can be configured for either little or big endian
1170 byte order. These modes require different kernels and a different
1171 Linux distribution. In general there is one preferred byteorder for a
1172 particular system but some systems are just as commonly used in the
1173 one or the other endianness.
1174
1175 config CPU_BIG_ENDIAN
1176 bool "Big endian"
1177 depends on SYS_SUPPORTS_BIG_ENDIAN
1178
1179 config CPU_LITTLE_ENDIAN
1180 bool "Little endian"
1181 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1182
1183 endchoice
1184
1185 config EXPORT_UASM
1186 bool
1187
1188 config SYS_SUPPORTS_APM_EMULATION
1189 bool
1190
1191 config SYS_SUPPORTS_BIG_ENDIAN
1192 bool
1193
1194 config SYS_SUPPORTS_LITTLE_ENDIAN
1195 bool
1196
1197 config SYS_SUPPORTS_HUGETLBFS
1198 bool
1199 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1200 default y
1201
1202 config MIPS_HUGE_TLB_SUPPORT
1203 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1204
1205 config IRQ_CPU_RM7K
1206 bool
1207
1208 config IRQ_MSP_SLP
1209 bool
1210
1211 config IRQ_MSP_CIC
1212 bool
1213
1214 config IRQ_TXX9
1215 bool
1216
1217 config IRQ_GT641XX
1218 bool
1219
1220 config PCI_GT64XXX_PCI0
1221 bool
1222
1223 config NO_EXCEPT_FILL
1224 bool
1225
1226 config SOC_EMMA2RH
1227 bool
1228 select CEVT_R4K
1229 select CSRC_R4K
1230 select DMA_NONCOHERENT
1231 select IRQ_MIPS_CPU
1232 select SWAP_IO_SPACE
1233 select SYS_HAS_CPU_R5500
1234 select SYS_SUPPORTS_32BIT_KERNEL
1235 select SYS_SUPPORTS_64BIT_KERNEL
1236 select SYS_SUPPORTS_BIG_ENDIAN
1237
1238 config SOC_PNX833X
1239 bool
1240 select CEVT_R4K
1241 select CSRC_R4K
1242 select IRQ_MIPS_CPU
1243 select DMA_NONCOHERENT
1244 select SYS_HAS_CPU_MIPS32_R2
1245 select SYS_SUPPORTS_32BIT_KERNEL
1246 select SYS_SUPPORTS_LITTLE_ENDIAN
1247 select SYS_SUPPORTS_BIG_ENDIAN
1248 select SYS_SUPPORTS_MIPS16
1249 select CPU_MIPSR2_IRQ_VI
1250
1251 config SOC_PNX8335
1252 bool
1253 select SOC_PNX833X
1254
1255 config MIPS_SPRAM
1256 bool
1257
1258 config SWAP_IO_SPACE
1259 bool
1260
1261 config SGI_HAS_INDYDOG
1262 bool
1263
1264 config SGI_HAS_HAL2
1265 bool
1266
1267 config SGI_HAS_SEEQ
1268 bool
1269
1270 config SGI_HAS_WD93
1271 bool
1272
1273 config SGI_HAS_ZILOG
1274 bool
1275
1276 config SGI_HAS_I8042
1277 bool
1278
1279 config DEFAULT_SGI_PARTITION
1280 bool
1281
1282 config FW_ARC32
1283 bool
1284
1285 config FW_SNIPROM
1286 bool
1287
1288 config BOOT_ELF32
1289 bool
1290
1291 config MIPS_L1_CACHE_SHIFT_4
1292 bool
1293
1294 config MIPS_L1_CACHE_SHIFT_5
1295 bool
1296
1297 config MIPS_L1_CACHE_SHIFT_6
1298 bool
1299
1300 config MIPS_L1_CACHE_SHIFT_7
1301 bool
1302
1303 config MIPS_L1_CACHE_SHIFT
1304 int
1305 default "7" if MIPS_L1_CACHE_SHIFT_7
1306 default "6" if MIPS_L1_CACHE_SHIFT_6
1307 default "5" if MIPS_L1_CACHE_SHIFT_5
1308 default "4" if MIPS_L1_CACHE_SHIFT_4
1309 default "5"
1310
1311 config HAVE_STD_PC_SERIAL_PORT
1312 bool
1313
1314 config ARC_CONSOLE
1315 bool "ARC console support"
1316 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1317
1318 config ARC_MEMORY
1319 bool
1320 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1321 default y
1322
1323 config ARC_PROMLIB
1324 bool
1325 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1326 default y
1327
1328 config FW_ARC64
1329 bool
1330
1331 config BOOT_ELF64
1332 bool
1333
1334 menu "CPU selection"
1335
1336 choice
1337 prompt "CPU type"
1338 default CPU_R4X00
1339
1340 config CPU_LOONGSON3
1341 bool "Loongson 3 CPU"
1342 depends on SYS_HAS_CPU_LOONGSON3
1343 select CPU_SUPPORTS_64BIT_KERNEL
1344 select CPU_SUPPORTS_HIGHMEM
1345 select CPU_SUPPORTS_HUGEPAGES
1346 select WEAK_ORDERING
1347 select WEAK_REORDERING_BEYOND_LLSC
1348 select MIPS_PGD_C0_CONTEXT
1349 select GPIOLIB
1350 help
1351 The Loongson 3 processor implements the MIPS64R2 instruction
1352 set with many extensions.
1353
1354 config LOONGSON3_ENHANCEMENT
1355 bool "New Loongson 3 CPU Enhancements"
1356 default n
1357 select CPU_MIPSR2
1358 select CPU_HAS_PREFETCH
1359 depends on CPU_LOONGSON3
1360 help
1361 New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A
1362 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1363 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User
1364 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1365 Fast TLB refill support, etc.
1366
1367 This option enable those enhancements which are not probed at run
1368 time. If you want a generic kernel to run on all Loongson 3 machines,
1369 please say 'N' here. If you want a high-performance kernel to run on
1370 new Loongson 3 machines only, please say 'Y' here.
1371
1372 config CPU_LOONGSON2E
1373 bool "Loongson 2E"
1374 depends on SYS_HAS_CPU_LOONGSON2E
1375 select CPU_LOONGSON2
1376 help
1377 The Loongson 2E processor implements the MIPS III instruction set
1378 with many extensions.
1379
1380 It has an internal FPGA northbridge, which is compatible to
1381 bonito64.
1382
1383 config CPU_LOONGSON2F
1384 bool "Loongson 2F"
1385 depends on SYS_HAS_CPU_LOONGSON2F
1386 select CPU_LOONGSON2
1387 select GPIOLIB
1388 help
1389 The Loongson 2F processor implements the MIPS III instruction set
1390 with many extensions.
1391
1392 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1393 have a similar programming interface with FPGA northbridge used in
1394 Loongson2E.
1395
1396 config CPU_LOONGSON1B
1397 bool "Loongson 1B"
1398 depends on SYS_HAS_CPU_LOONGSON1B
1399 select CPU_LOONGSON1
1400 select LEDS_GPIO_REGISTER
1401 help
1402 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1403 release 2 instruction set.
1404
1405 config CPU_MIPS32_R1
1406 bool "MIPS32 Release 1"
1407 depends on SYS_HAS_CPU_MIPS32_R1
1408 select CPU_HAS_PREFETCH
1409 select CPU_SUPPORTS_32BIT_KERNEL
1410 select CPU_SUPPORTS_HIGHMEM
1411 help
1412 Choose this option to build a kernel for release 1 or later of the
1413 MIPS32 architecture. Most modern embedded systems with a 32-bit
1414 MIPS processor are based on a MIPS32 processor. If you know the
1415 specific type of processor in your system, choose those that one
1416 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1417 Release 2 of the MIPS32 architecture is available since several
1418 years so chances are you even have a MIPS32 Release 2 processor
1419 in which case you should choose CPU_MIPS32_R2 instead for better
1420 performance.
1421
1422 config CPU_MIPS32_R2
1423 bool "MIPS32 Release 2"
1424 depends on SYS_HAS_CPU_MIPS32_R2
1425 select CPU_HAS_PREFETCH
1426 select CPU_SUPPORTS_32BIT_KERNEL
1427 select CPU_SUPPORTS_HIGHMEM
1428 select CPU_SUPPORTS_MSA
1429 select HAVE_KVM
1430 help
1431 Choose this option to build a kernel for release 2 or later of the
1432 MIPS32 architecture. Most modern embedded systems with a 32-bit
1433 MIPS processor are based on a MIPS32 processor. If you know the
1434 specific type of processor in your system, choose those that one
1435 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1436
1437 config CPU_MIPS32_R6
1438 bool "MIPS32 Release 6"
1439 depends on SYS_HAS_CPU_MIPS32_R6
1440 select CPU_HAS_PREFETCH
1441 select CPU_SUPPORTS_32BIT_KERNEL
1442 select CPU_SUPPORTS_HIGHMEM
1443 select CPU_SUPPORTS_MSA
1444 select GENERIC_CSUM
1445 select HAVE_KVM
1446 select MIPS_O32_FP64_SUPPORT
1447 help
1448 Choose this option to build a kernel for release 6 or later of the
1449 MIPS32 architecture. New MIPS processors, starting with the Warrior
1450 family, are based on a MIPS32r6 processor. If you own an older
1451 processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1452
1453 config CPU_MIPS64_R1
1454 bool "MIPS64 Release 1"
1455 depends on SYS_HAS_CPU_MIPS64_R1
1456 select CPU_HAS_PREFETCH
1457 select CPU_SUPPORTS_32BIT_KERNEL
1458 select CPU_SUPPORTS_64BIT_KERNEL
1459 select CPU_SUPPORTS_HIGHMEM
1460 select CPU_SUPPORTS_HUGEPAGES
1461 help
1462 Choose this option to build a kernel for release 1 or later of the
1463 MIPS64 architecture. Many modern embedded systems with a 64-bit
1464 MIPS processor are based on a MIPS64 processor. If you know the
1465 specific type of processor in your system, choose those that one
1466 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1467 Release 2 of the MIPS64 architecture is available since several
1468 years so chances are you even have a MIPS64 Release 2 processor
1469 in which case you should choose CPU_MIPS64_R2 instead for better
1470 performance.
1471
1472 config CPU_MIPS64_R2
1473 bool "MIPS64 Release 2"
1474 depends on SYS_HAS_CPU_MIPS64_R2
1475 select CPU_HAS_PREFETCH
1476 select CPU_SUPPORTS_32BIT_KERNEL
1477 select CPU_SUPPORTS_64BIT_KERNEL
1478 select CPU_SUPPORTS_HIGHMEM
1479 select CPU_SUPPORTS_HUGEPAGES
1480 select CPU_SUPPORTS_MSA
1481 select HAVE_KVM
1482 help
1483 Choose this option to build a kernel for release 2 or later of the
1484 MIPS64 architecture. Many modern embedded systems with a 64-bit
1485 MIPS processor are based on a MIPS64 processor. If you know the
1486 specific type of processor in your system, choose those that one
1487 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1488
1489 config CPU_MIPS64_R6
1490 bool "MIPS64 Release 6"
1491 depends on SYS_HAS_CPU_MIPS64_R6
1492 select CPU_HAS_PREFETCH
1493 select CPU_SUPPORTS_32BIT_KERNEL
1494 select CPU_SUPPORTS_64BIT_KERNEL
1495 select CPU_SUPPORTS_HIGHMEM
1496 select CPU_SUPPORTS_MSA
1497 select GENERIC_CSUM
1498 select MIPS_O32_FP64_SUPPORT if MIPS32_O32
1499 select HAVE_KVM
1500 help
1501 Choose this option to build a kernel for release 6 or later of the
1502 MIPS64 architecture. New MIPS processors, starting with the Warrior
1503 family, are based on a MIPS64r6 processor. If you own an older
1504 processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1505
1506 config CPU_R3000
1507 bool "R3000"
1508 depends on SYS_HAS_CPU_R3000
1509 select CPU_HAS_WB
1510 select CPU_SUPPORTS_32BIT_KERNEL
1511 select CPU_SUPPORTS_HIGHMEM
1512 help
1513 Please make sure to pick the right CPU type. Linux/MIPS is not
1514 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1515 *not* work on R4000 machines and vice versa. However, since most
1516 of the supported machines have an R4000 (or similar) CPU, R4x00
1517 might be a safe bet. If the resulting kernel does not work,
1518 try to recompile with R3000.
1519
1520 config CPU_TX39XX
1521 bool "R39XX"
1522 depends on SYS_HAS_CPU_TX39XX
1523 select CPU_SUPPORTS_32BIT_KERNEL
1524
1525 config CPU_VR41XX
1526 bool "R41xx"
1527 depends on SYS_HAS_CPU_VR41XX
1528 select CPU_SUPPORTS_32BIT_KERNEL
1529 select CPU_SUPPORTS_64BIT_KERNEL
1530 help
1531 The options selects support for the NEC VR4100 series of processors.
1532 Only choose this option if you have one of these processors as a
1533 kernel built with this option will not run on any other type of
1534 processor or vice versa.
1535
1536 config CPU_R4300
1537 bool "R4300"
1538 depends on SYS_HAS_CPU_R4300
1539 select CPU_SUPPORTS_32BIT_KERNEL
1540 select CPU_SUPPORTS_64BIT_KERNEL
1541 help
1542 MIPS Technologies R4300-series processors.
1543
1544 config CPU_R4X00
1545 bool "R4x00"
1546 depends on SYS_HAS_CPU_R4X00
1547 select CPU_SUPPORTS_32BIT_KERNEL
1548 select CPU_SUPPORTS_64BIT_KERNEL
1549 select CPU_SUPPORTS_HUGEPAGES
1550 help
1551 MIPS Technologies R4000-series processors other than 4300, including
1552 the R4000, R4400, R4600, and 4700.
1553
1554 config CPU_TX49XX
1555 bool "R49XX"
1556 depends on SYS_HAS_CPU_TX49XX
1557 select CPU_HAS_PREFETCH
1558 select CPU_SUPPORTS_32BIT_KERNEL
1559 select CPU_SUPPORTS_64BIT_KERNEL
1560 select CPU_SUPPORTS_HUGEPAGES
1561
1562 config CPU_R5000
1563 bool "R5000"
1564 depends on SYS_HAS_CPU_R5000
1565 select CPU_SUPPORTS_32BIT_KERNEL
1566 select CPU_SUPPORTS_64BIT_KERNEL
1567 select CPU_SUPPORTS_HUGEPAGES
1568 help
1569 MIPS Technologies R5000-series processors other than the Nevada.
1570
1571 config CPU_R5432
1572 bool "R5432"
1573 depends on SYS_HAS_CPU_R5432
1574 select CPU_SUPPORTS_32BIT_KERNEL
1575 select CPU_SUPPORTS_64BIT_KERNEL
1576 select CPU_SUPPORTS_HUGEPAGES
1577
1578 config CPU_R5500
1579 bool "R5500"
1580 depends on SYS_HAS_CPU_R5500
1581 select CPU_SUPPORTS_32BIT_KERNEL
1582 select CPU_SUPPORTS_64BIT_KERNEL
1583 select CPU_SUPPORTS_HUGEPAGES
1584 help
1585 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1586 instruction set.
1587
1588 config CPU_R6000
1589 bool "R6000"
1590 depends on SYS_HAS_CPU_R6000
1591 select CPU_SUPPORTS_32BIT_KERNEL
1592 help
1593 MIPS Technologies R6000 and R6000A series processors. Note these
1594 processors are extremely rare and the support for them is incomplete.
1595
1596 config CPU_NEVADA
1597 bool "RM52xx"
1598 depends on SYS_HAS_CPU_NEVADA
1599 select CPU_SUPPORTS_32BIT_KERNEL
1600 select CPU_SUPPORTS_64BIT_KERNEL
1601 select CPU_SUPPORTS_HUGEPAGES
1602 help
1603 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1604
1605 config CPU_R8000
1606 bool "R8000"
1607 depends on SYS_HAS_CPU_R8000
1608 select CPU_HAS_PREFETCH
1609 select CPU_SUPPORTS_64BIT_KERNEL
1610 help
1611 MIPS Technologies R8000 processors. Note these processors are
1612 uncommon and the support for them is incomplete.
1613
1614 config CPU_R10000
1615 bool "R10000"
1616 depends on SYS_HAS_CPU_R10000
1617 select CPU_HAS_PREFETCH
1618 select CPU_SUPPORTS_32BIT_KERNEL
1619 select CPU_SUPPORTS_64BIT_KERNEL
1620 select CPU_SUPPORTS_HIGHMEM
1621 select CPU_SUPPORTS_HUGEPAGES
1622 help
1623 MIPS Technologies R10000-series processors.
1624
1625 config CPU_RM7000
1626 bool "RM7000"
1627 depends on SYS_HAS_CPU_RM7000
1628 select CPU_HAS_PREFETCH
1629 select CPU_SUPPORTS_32BIT_KERNEL
1630 select CPU_SUPPORTS_64BIT_KERNEL
1631 select CPU_SUPPORTS_HIGHMEM
1632 select CPU_SUPPORTS_HUGEPAGES
1633
1634 config CPU_SB1
1635 bool "SB1"
1636 depends on SYS_HAS_CPU_SB1
1637 select CPU_SUPPORTS_32BIT_KERNEL
1638 select CPU_SUPPORTS_64BIT_KERNEL
1639 select CPU_SUPPORTS_HIGHMEM
1640 select CPU_SUPPORTS_HUGEPAGES
1641 select WEAK_ORDERING
1642
1643 config CPU_CAVIUM_OCTEON
1644 bool "Cavium Octeon processor"
1645 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1646 select CPU_HAS_PREFETCH
1647 select CPU_SUPPORTS_64BIT_KERNEL
1648 select WEAK_ORDERING
1649 select CPU_SUPPORTS_HIGHMEM
1650 select CPU_SUPPORTS_HUGEPAGES
1651 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1652 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1653 select MIPS_L1_CACHE_SHIFT_7
1654 help
1655 The Cavium Octeon processor is a highly integrated chip containing
1656 many ethernet hardware widgets for networking tasks. The processor
1657 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1658 Full details can be found at http://www.caviumnetworks.com.
1659
1660 config CPU_BMIPS
1661 bool "Broadcom BMIPS"
1662 depends on SYS_HAS_CPU_BMIPS
1663 select CPU_MIPS32
1664 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1665 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1666 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1667 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1668 select CPU_SUPPORTS_32BIT_KERNEL
1669 select DMA_NONCOHERENT
1670 select IRQ_MIPS_CPU
1671 select SWAP_IO_SPACE
1672 select WEAK_ORDERING
1673 select CPU_SUPPORTS_HIGHMEM
1674 select CPU_HAS_PREFETCH
1675 help
1676 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1677
1678 config CPU_XLR
1679 bool "Netlogic XLR SoC"
1680 depends on SYS_HAS_CPU_XLR
1681 select CPU_SUPPORTS_32BIT_KERNEL
1682 select CPU_SUPPORTS_64BIT_KERNEL
1683 select CPU_SUPPORTS_HIGHMEM
1684 select CPU_SUPPORTS_HUGEPAGES
1685 select WEAK_ORDERING
1686 select WEAK_REORDERING_BEYOND_LLSC
1687 help
1688 Netlogic Microsystems XLR/XLS processors.
1689
1690 config CPU_XLP
1691 bool "Netlogic XLP SoC"
1692 depends on SYS_HAS_CPU_XLP
1693 select CPU_SUPPORTS_32BIT_KERNEL
1694 select CPU_SUPPORTS_64BIT_KERNEL
1695 select CPU_SUPPORTS_HIGHMEM
1696 select WEAK_ORDERING
1697 select WEAK_REORDERING_BEYOND_LLSC
1698 select CPU_HAS_PREFETCH
1699 select CPU_MIPSR2
1700 select CPU_SUPPORTS_HUGEPAGES
1701 select MIPS_ASID_BITS_VARIABLE
1702 help
1703 Netlogic Microsystems XLP processors.
1704 endchoice
1705
1706 config CPU_MIPS32_3_5_FEATURES
1707 bool "MIPS32 Release 3.5 Features"
1708 depends on SYS_HAS_CPU_MIPS32_R3_5
1709 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1710 help
1711 Choose this option to build a kernel for release 2 or later of the
1712 MIPS32 architecture including features from the 3.5 release such as
1713 support for Enhanced Virtual Addressing (EVA).
1714
1715 config CPU_MIPS32_3_5_EVA
1716 bool "Enhanced Virtual Addressing (EVA)"
1717 depends on CPU_MIPS32_3_5_FEATURES
1718 select EVA
1719 default y
1720 help
1721 Choose this option if you want to enable the Enhanced Virtual
1722 Addressing (EVA) on your MIPS32 core (such as proAptiv).
1723 One of its primary benefits is an increase in the maximum size
1724 of lowmem (up to 3GB). If unsure, say 'N' here.
1725
1726 config CPU_MIPS32_R5_FEATURES
1727 bool "MIPS32 Release 5 Features"
1728 depends on SYS_HAS_CPU_MIPS32_R5
1729 depends on CPU_MIPS32_R2
1730 help
1731 Choose this option to build a kernel for release 2 or later of the
1732 MIPS32 architecture including features from release 5 such as
1733 support for Extended Physical Addressing (XPA).
1734
1735 config CPU_MIPS32_R5_XPA
1736 bool "Extended Physical Addressing (XPA)"
1737 depends on CPU_MIPS32_R5_FEATURES
1738 depends on !EVA
1739 depends on !PAGE_SIZE_4KB
1740 depends on SYS_SUPPORTS_HIGHMEM
1741 select XPA
1742 select HIGHMEM
1743 select ARCH_PHYS_ADDR_T_64BIT
1744 default n
1745 help
1746 Choose this option if you want to enable the Extended Physical
1747 Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1748 benefit is to increase physical addressing equal to or greater
1749 than 40 bits. Note that this has the side effect of turning on
1750 64-bit addressing which in turn makes the PTEs 64-bit in size.
1751 If unsure, say 'N' here.
1752
1753 if CPU_LOONGSON2F
1754 config CPU_NOP_WORKAROUNDS
1755 bool
1756
1757 config CPU_JUMP_WORKAROUNDS
1758 bool
1759
1760 config CPU_LOONGSON2F_WORKAROUNDS
1761 bool "Loongson 2F Workarounds"
1762 default y
1763 select CPU_NOP_WORKAROUNDS
1764 select CPU_JUMP_WORKAROUNDS
1765 help
1766 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1767 require workarounds. Without workarounds the system may hang
1768 unexpectedly. For more information please refer to the gas
1769 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1770
1771 Loongson 2F03 and later have fixed these issues and no workarounds
1772 are needed. The workarounds have no significant side effect on them
1773 but may decrease the performance of the system so this option should
1774 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1775 systems.
1776
1777 If unsure, please say Y.
1778 endif # CPU_LOONGSON2F
1779
1780 config SYS_SUPPORTS_ZBOOT
1781 bool
1782 select HAVE_KERNEL_GZIP
1783 select HAVE_KERNEL_BZIP2
1784 select HAVE_KERNEL_LZ4
1785 select HAVE_KERNEL_LZMA
1786 select HAVE_KERNEL_LZO
1787 select HAVE_KERNEL_XZ
1788
1789 config SYS_SUPPORTS_ZBOOT_UART16550
1790 bool
1791 select SYS_SUPPORTS_ZBOOT
1792
1793 config SYS_SUPPORTS_ZBOOT_UART_PROM
1794 bool
1795 select SYS_SUPPORTS_ZBOOT
1796
1797 config CPU_LOONGSON2
1798 bool
1799 select CPU_SUPPORTS_32BIT_KERNEL
1800 select CPU_SUPPORTS_64BIT_KERNEL
1801 select CPU_SUPPORTS_HIGHMEM
1802 select CPU_SUPPORTS_HUGEPAGES
1803
1804 config CPU_LOONGSON1
1805 bool
1806 select CPU_MIPS32
1807 select CPU_MIPSR2
1808 select CPU_HAS_PREFETCH
1809 select CPU_SUPPORTS_32BIT_KERNEL
1810 select CPU_SUPPORTS_HIGHMEM
1811 select CPU_SUPPORTS_CPUFREQ
1812
1813 config CPU_BMIPS32_3300
1814 select SMP_UP if SMP
1815 bool
1816
1817 config CPU_BMIPS4350
1818 bool
1819 select SYS_SUPPORTS_SMP
1820 select SYS_SUPPORTS_HOTPLUG_CPU
1821
1822 config CPU_BMIPS4380
1823 bool
1824 select MIPS_L1_CACHE_SHIFT_6
1825 select SYS_SUPPORTS_SMP
1826 select SYS_SUPPORTS_HOTPLUG_CPU
1827 select CPU_HAS_RIXI
1828
1829 config CPU_BMIPS5000
1830 bool
1831 select MIPS_CPU_SCACHE
1832 select MIPS_L1_CACHE_SHIFT_7
1833 select SYS_SUPPORTS_SMP
1834 select SYS_SUPPORTS_HOTPLUG_CPU
1835 select CPU_HAS_RIXI
1836
1837 config SYS_HAS_CPU_LOONGSON3
1838 bool
1839 select CPU_SUPPORTS_CPUFREQ
1840 select CPU_HAS_RIXI
1841
1842 config SYS_HAS_CPU_LOONGSON2E
1843 bool
1844
1845 config SYS_HAS_CPU_LOONGSON2F
1846 bool
1847 select CPU_SUPPORTS_CPUFREQ
1848 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1849 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1850
1851 config SYS_HAS_CPU_LOONGSON1B
1852 bool
1853
1854 config SYS_HAS_CPU_MIPS32_R1
1855 bool
1856
1857 config SYS_HAS_CPU_MIPS32_R2
1858 bool
1859
1860 config SYS_HAS_CPU_MIPS32_R3_5
1861 bool
1862
1863 config SYS_HAS_CPU_MIPS32_R5
1864 bool
1865
1866 config SYS_HAS_CPU_MIPS32_R6
1867 bool
1868
1869 config SYS_HAS_CPU_MIPS64_R1
1870 bool
1871
1872 config SYS_HAS_CPU_MIPS64_R2
1873 bool
1874
1875 config SYS_HAS_CPU_MIPS64_R6
1876 bool
1877
1878 config SYS_HAS_CPU_R3000
1879 bool
1880
1881 config SYS_HAS_CPU_TX39XX
1882 bool
1883
1884 config SYS_HAS_CPU_VR41XX
1885 bool
1886
1887 config SYS_HAS_CPU_R4300
1888 bool
1889
1890 config SYS_HAS_CPU_R4X00
1891 bool
1892
1893 config SYS_HAS_CPU_TX49XX
1894 bool
1895
1896 config SYS_HAS_CPU_R5000
1897 bool
1898
1899 config SYS_HAS_CPU_R5432
1900 bool
1901
1902 config SYS_HAS_CPU_R5500
1903 bool
1904
1905 config SYS_HAS_CPU_R6000
1906 bool
1907
1908 config SYS_HAS_CPU_NEVADA
1909 bool
1910
1911 config SYS_HAS_CPU_R8000
1912 bool
1913
1914 config SYS_HAS_CPU_R10000
1915 bool
1916
1917 config SYS_HAS_CPU_RM7000
1918 bool
1919
1920 config SYS_HAS_CPU_SB1
1921 bool
1922
1923 config SYS_HAS_CPU_CAVIUM_OCTEON
1924 bool
1925
1926 config SYS_HAS_CPU_BMIPS
1927 bool
1928
1929 config SYS_HAS_CPU_BMIPS32_3300
1930 bool
1931 select SYS_HAS_CPU_BMIPS
1932
1933 config SYS_HAS_CPU_BMIPS4350
1934 bool
1935 select SYS_HAS_CPU_BMIPS
1936
1937 config SYS_HAS_CPU_BMIPS4380
1938 bool
1939 select SYS_HAS_CPU_BMIPS
1940
1941 config SYS_HAS_CPU_BMIPS5000
1942 bool
1943 select SYS_HAS_CPU_BMIPS
1944
1945 config SYS_HAS_CPU_XLR
1946 bool
1947
1948 config SYS_HAS_CPU_XLP
1949 bool
1950
1951 config MIPS_MALTA_PM
1952 depends on MIPS_MALTA
1953 depends on PCI
1954 bool
1955 default y
1956
1957 #
1958 # CPU may reorder R->R, R->W, W->R, W->W
1959 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1960 #
1961 config WEAK_ORDERING
1962 bool
1963
1964 #
1965 # CPU may reorder reads and writes beyond LL/SC
1966 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1967 #
1968 config WEAK_REORDERING_BEYOND_LLSC
1969 bool
1970 endmenu
1971
1972 #
1973 # These two indicate any level of the MIPS32 and MIPS64 architecture
1974 #
1975 config CPU_MIPS32
1976 bool
1977 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
1978
1979 config CPU_MIPS64
1980 bool
1981 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
1982
1983 #
1984 # These two indicate the revision of the architecture, either Release 1 or Release 2
1985 #
1986 config CPU_MIPSR1
1987 bool
1988 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1989
1990 config CPU_MIPSR2
1991 bool
1992 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1993 select CPU_HAS_RIXI
1994 select MIPS_SPRAM
1995
1996 config CPU_MIPSR6
1997 bool
1998 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
1999 select CPU_HAS_RIXI
2000 select HAVE_ARCH_BITREVERSE
2001 select MIPS_ASID_BITS_VARIABLE
2002 select MIPS_SPRAM
2003
2004 config EVA
2005 bool
2006
2007 config XPA
2008 bool
2009
2010 config SYS_SUPPORTS_32BIT_KERNEL
2011 bool
2012 config SYS_SUPPORTS_64BIT_KERNEL
2013 bool
2014 config CPU_SUPPORTS_32BIT_KERNEL
2015 bool
2016 config CPU_SUPPORTS_64BIT_KERNEL
2017 bool
2018 config CPU_SUPPORTS_CPUFREQ
2019 bool
2020 config CPU_SUPPORTS_ADDRWINCFG
2021 bool
2022 config CPU_SUPPORTS_HUGEPAGES
2023 bool
2024 config CPU_SUPPORTS_UNCACHED_ACCELERATED
2025 bool
2026 config MIPS_PGD_C0_CONTEXT
2027 bool
2028 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
2029
2030 #
2031 # Set to y for ptrace access to watch registers.
2032 #
2033 config HARDWARE_WATCHPOINTS
2034 bool
2035 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2036
2037 menu "Kernel type"
2038
2039 choice
2040 prompt "Kernel code model"
2041 help
2042 You should only select this option if you have a workload that
2043 actually benefits from 64-bit processing or if your machine has
2044 large memory. You will only be presented a single option in this
2045 menu if your system does not support both 32-bit and 64-bit kernels.
2046
2047 config 32BIT
2048 bool "32-bit kernel"
2049 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2050 select TRAD_SIGNALS
2051 help
2052 Select this option if you want to build a 32-bit kernel.
2053
2054 config 64BIT
2055 bool "64-bit kernel"
2056 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2057 help
2058 Select this option if you want to build a 64-bit kernel.
2059
2060 endchoice
2061
2062 config KVM_GUEST
2063 bool "KVM Guest Kernel"
2064 depends on BROKEN_ON_SMP
2065 help
2066 Select this option if building a guest kernel for KVM (Trap & Emulate)
2067 mode.
2068
2069 config KVM_GUEST_TIMER_FREQ
2070 int "Count/Compare Timer Frequency (MHz)"
2071 depends on KVM_GUEST
2072 default 100
2073 help
2074 Set this to non-zero if building a guest kernel for KVM to skip RTC
2075 emulation when determining guest CPU Frequency. Instead, the guest's
2076 timer frequency is specified directly.
2077
2078 config MIPS_VA_BITS_48
2079 bool "48 bits virtual memory"
2080 depends on 64BIT
2081 help
2082 Support a maximum at least 48 bits of application virtual memory.
2083 Default is 40 bits or less, depending on the CPU.
2084 This option result in a small memory overhead for page tables.
2085 This option is only supported with 16k and 64k page sizes.
2086 If unsure, say N.
2087
2088 choice
2089 prompt "Kernel page size"
2090 default PAGE_SIZE_4KB
2091
2092 config PAGE_SIZE_4KB
2093 bool "4kB"
2094 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
2095 depends on !MIPS_VA_BITS_48
2096 help
2097 This option select the standard 4kB Linux page size. On some
2098 R3000-family processors this is the only available page size. Using
2099 4kB page size will minimize memory consumption and is therefore
2100 recommended for low memory systems.
2101
2102 config PAGE_SIZE_8KB
2103 bool "8kB"
2104 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
2105 depends on !MIPS_VA_BITS_48
2106 help
2107 Using 8kB page size will result in higher performance kernel at
2108 the price of higher memory consumption. This option is available
2109 only on R8000 and cnMIPS processors. Note that you will need a
2110 suitable Linux distribution to support this.
2111
2112 config PAGE_SIZE_16KB
2113 bool "16kB"
2114 depends on !CPU_R3000 && !CPU_TX39XX
2115 help
2116 Using 16kB page size will result in higher performance kernel at
2117 the price of higher memory consumption. This option is available on
2118 all non-R3000 family processors. Note that you will need a suitable
2119 Linux distribution to support this.
2120
2121 config PAGE_SIZE_32KB
2122 bool "32kB"
2123 depends on CPU_CAVIUM_OCTEON
2124 depends on !MIPS_VA_BITS_48
2125 help
2126 Using 32kB page size will result in higher performance kernel at
2127 the price of higher memory consumption. This option is available
2128 only on cnMIPS cores. Note that you will need a suitable Linux
2129 distribution to support this.
2130
2131 config PAGE_SIZE_64KB
2132 bool "64kB"
2133 depends on !CPU_R3000 && !CPU_TX39XX && !CPU_R6000
2134 help
2135 Using 64kB page size will result in higher performance kernel at
2136 the price of higher memory consumption. This option is available on
2137 all non-R3000 family processor. Not that at the time of this
2138 writing this option is still high experimental.
2139
2140 endchoice
2141
2142 config FORCE_MAX_ZONEORDER
2143 int "Maximum zone order"
2144 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2145 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2146 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2147 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2148 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2149 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2150 range 11 64
2151 default "11"
2152 help
2153 The kernel memory allocator divides physically contiguous memory
2154 blocks into "zones", where each zone is a power of two number of
2155 pages. This option selects the largest power of two that the kernel
2156 keeps in the memory allocator. If you need to allocate very large
2157 blocks of physically contiguous memory, then you may need to
2158 increase this value.
2159
2160 This config option is actually maximum order plus one. For example,
2161 a value of 11 means that the largest free memory block is 2^10 pages.
2162
2163 The page size is not necessarily 4KB. Keep this in mind
2164 when choosing a value for this option.
2165
2166 config BOARD_SCACHE
2167 bool
2168
2169 config IP22_CPU_SCACHE
2170 bool
2171 select BOARD_SCACHE
2172
2173 #
2174 # Support for a MIPS32 / MIPS64 style S-caches
2175 #
2176 config MIPS_CPU_SCACHE
2177 bool
2178 select BOARD_SCACHE
2179
2180 config R5000_CPU_SCACHE
2181 bool
2182 select BOARD_SCACHE
2183
2184 config RM7000_CPU_SCACHE
2185 bool
2186 select BOARD_SCACHE
2187
2188 config SIBYTE_DMA_PAGEOPS
2189 bool "Use DMA to clear/copy pages"
2190 depends on CPU_SB1
2191 help
2192 Instead of using the CPU to zero and copy pages, use a Data Mover
2193 channel. These DMA channels are otherwise unused by the standard
2194 SiByte Linux port. Seems to give a small performance benefit.
2195
2196 config CPU_HAS_PREFETCH
2197 bool
2198
2199 config CPU_GENERIC_DUMP_TLB
2200 bool
2201 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
2202
2203 config CPU_R4K_FPU
2204 bool
2205 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2206
2207 config CPU_R4K_CACHE_TLB
2208 bool
2209 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2210
2211 config MIPS_MT_SMP
2212 bool "MIPS MT SMP support (1 TC on each available VPE)"
2213 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6
2214 select CPU_MIPSR2_IRQ_VI
2215 select CPU_MIPSR2_IRQ_EI
2216 select SYNC_R4K
2217 select MIPS_MT
2218 select SMP
2219 select SMP_UP
2220 select SYS_SUPPORTS_SMP
2221 select SYS_SUPPORTS_SCHED_SMT
2222 select MIPS_PERF_SHARED_TC_COUNTERS
2223 help
2224 This is a kernel model which is known as SMVP. This is supported
2225 on cores with the MT ASE and uses the available VPEs to implement
2226 virtual processors which supports SMP. This is equivalent to the
2227 Intel Hyperthreading feature. For further information go to
2228 <http://www.imgtec.com/mips/mips-multithreading.asp>.
2229
2230 config MIPS_MT
2231 bool
2232
2233 config SCHED_SMT
2234 bool "SMT (multithreading) scheduler support"
2235 depends on SYS_SUPPORTS_SCHED_SMT
2236 default n
2237 help
2238 SMT scheduler support improves the CPU scheduler's decision making
2239 when dealing with MIPS MT enabled cores at a cost of slightly
2240 increased overhead in some places. If unsure say N here.
2241
2242 config SYS_SUPPORTS_SCHED_SMT
2243 bool
2244
2245 config SYS_SUPPORTS_MULTITHREADING
2246 bool
2247
2248 config MIPS_MT_FPAFF
2249 bool "Dynamic FPU affinity for FP-intensive threads"
2250 default y
2251 depends on MIPS_MT_SMP
2252
2253 config MIPSR2_TO_R6_EMULATOR
2254 bool "MIPS R2-to-R6 emulator"
2255 depends on CPU_MIPSR6 && !SMP
2256 default y
2257 help
2258 Choose this option if you want to run non-R6 MIPS userland code.
2259 Even if you say 'Y' here, the emulator will still be disabled by
2260 default. You can enable it using the 'mipsr2emu' kernel option.
2261 The only reason this is a build-time option is to save ~14K from the
2262 final kernel image.
2263 comment "MIPS R2-to-R6 emulator is only available for UP kernels"
2264 depends on SMP && CPU_MIPSR6
2265
2266 config MIPS_VPE_LOADER
2267 bool "VPE loader support."
2268 depends on SYS_SUPPORTS_MULTITHREADING && MODULES
2269 select CPU_MIPSR2_IRQ_VI
2270 select CPU_MIPSR2_IRQ_EI
2271 select MIPS_MT
2272 help
2273 Includes a loader for loading an elf relocatable object
2274 onto another VPE and running it.
2275
2276 config MIPS_VPE_LOADER_CMP
2277 bool
2278 default "y"
2279 depends on MIPS_VPE_LOADER && MIPS_CMP
2280
2281 config MIPS_VPE_LOADER_MT
2282 bool
2283 default "y"
2284 depends on MIPS_VPE_LOADER && !MIPS_CMP
2285
2286 config MIPS_VPE_LOADER_TOM
2287 bool "Load VPE program into memory hidden from linux"
2288 depends on MIPS_VPE_LOADER
2289 default y
2290 help
2291 The loader can use memory that is present but has been hidden from
2292 Linux using the kernel command line option "mem=xxMB". It's up to
2293 you to ensure the amount you put in the option and the space your
2294 program requires is less or equal to the amount physically present.
2295
2296 config MIPS_VPE_APSP_API
2297 bool "Enable support for AP/SP API (RTLX)"
2298 depends on MIPS_VPE_LOADER
2299 help
2300
2301 config MIPS_VPE_APSP_API_CMP
2302 bool
2303 default "y"
2304 depends on MIPS_VPE_APSP_API && MIPS_CMP
2305
2306 config MIPS_VPE_APSP_API_MT
2307 bool
2308 default "y"
2309 depends on MIPS_VPE_APSP_API && !MIPS_CMP
2310
2311 config MIPS_CMP
2312 bool "MIPS CMP framework support (DEPRECATED)"
2313 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2314 select SMP
2315 select SYNC_R4K
2316 select SYS_SUPPORTS_SMP
2317 select WEAK_ORDERING
2318 default n
2319 help
2320 Select this if you are using a bootloader which implements the "CMP
2321 framework" protocol (ie. YAMON) and want your kernel to make use of
2322 its ability to start secondary CPUs.
2323
2324 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2325 instead of this.
2326
2327 config MIPS_CPS
2328 bool "MIPS Coherent Processing System support"
2329 depends on SYS_SUPPORTS_MIPS_CPS
2330 select MIPS_CM
2331 select MIPS_CPC
2332 select MIPS_CPS_PM if HOTPLUG_CPU
2333 select SMP
2334 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2335 select SYS_SUPPORTS_HOTPLUG_CPU
2336 select SYS_SUPPORTS_SMP
2337 select WEAK_ORDERING
2338 help
2339 Select this if you wish to run an SMP kernel across multiple cores
2340 within a MIPS Coherent Processing System. When this option is
2341 enabled the kernel will probe for other cores and boot them with
2342 no external assistance. It is safe to enable this when hardware
2343 support is unavailable.
2344
2345 config MIPS_CPS_PM
2346 depends on MIPS_CPS
2347 select MIPS_CPC
2348 bool
2349
2350 config MIPS_CM
2351 bool
2352
2353 config MIPS_CPC
2354 bool
2355
2356 config SB1_PASS_2_WORKAROUNDS
2357 bool
2358 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2359 default y
2360
2361 config SB1_PASS_2_1_WORKAROUNDS
2362 bool
2363 depends on CPU_SB1 && CPU_SB1_PASS_2
2364 default y
2365
2366
2367 config ARCH_PHYS_ADDR_T_64BIT
2368 bool
2369
2370 choice
2371 prompt "SmartMIPS or microMIPS ASE support"
2372
2373 config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2374 bool "None"
2375 help
2376 Select this if you want neither microMIPS nor SmartMIPS support
2377
2378 config CPU_HAS_SMARTMIPS
2379 depends on SYS_SUPPORTS_SMARTMIPS
2380 bool "SmartMIPS"
2381 help
2382 SmartMIPS is a extension of the MIPS32 architecture aimed at
2383 increased security at both hardware and software level for
2384 smartcards. Enabling this option will allow proper use of the
2385 SmartMIPS instructions by Linux applications. However a kernel with
2386 this option will not work on a MIPS core without SmartMIPS core. If
2387 you don't know you probably don't have SmartMIPS and should say N
2388 here.
2389
2390 config CPU_MICROMIPS
2391 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2392 bool "microMIPS"
2393 help
2394 When this option is enabled the kernel will be built using the
2395 microMIPS ISA
2396
2397 endchoice
2398
2399 config CPU_HAS_MSA
2400 bool "Support for the MIPS SIMD Architecture"
2401 depends on CPU_SUPPORTS_MSA
2402 depends on 64BIT || MIPS_O32_FP64_SUPPORT
2403 help
2404 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2405 and a set of SIMD instructions to operate on them. When this option
2406 is enabled the kernel will support allocating & switching MSA
2407 vector register contexts. If you know that your kernel will only be
2408 running on CPUs which do not support MSA or that your userland will
2409 not be making use of it then you may wish to say N here to reduce
2410 the size & complexity of your kernel.
2411
2412 If unsure, say Y.
2413
2414 config CPU_HAS_WB
2415 bool
2416
2417 config XKS01
2418 bool
2419
2420 config CPU_HAS_RIXI
2421 bool
2422
2423 #
2424 # Vectored interrupt mode is an R2 feature
2425 #
2426 config CPU_MIPSR2_IRQ_VI
2427 bool
2428
2429 #
2430 # Extended interrupt mode is an R2 feature
2431 #
2432 config CPU_MIPSR2_IRQ_EI
2433 bool
2434
2435 config CPU_HAS_SYNC
2436 bool
2437 depends on !CPU_R3000
2438 default y
2439
2440 #
2441 # CPU non-features
2442 #
2443 config CPU_DADDI_WORKAROUNDS
2444 bool
2445
2446 config CPU_R4000_WORKAROUNDS
2447 bool
2448 select CPU_R4400_WORKAROUNDS
2449
2450 config CPU_R4400_WORKAROUNDS
2451 bool
2452
2453 config MIPS_ASID_SHIFT
2454 int
2455 default 6 if CPU_R3000 || CPU_TX39XX
2456 default 4 if CPU_R8000
2457 default 0
2458
2459 config MIPS_ASID_BITS
2460 int
2461 default 0 if MIPS_ASID_BITS_VARIABLE
2462 default 6 if CPU_R3000 || CPU_TX39XX
2463 default 8
2464
2465 config MIPS_ASID_BITS_VARIABLE
2466 bool
2467
2468 #
2469 # - Highmem only makes sense for the 32-bit kernel.
2470 # - The current highmem code will only work properly on physically indexed
2471 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2472 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2473 # moment we protect the user and offer the highmem option only on machines
2474 # where it's known to be safe. This will not offer highmem on a few systems
2475 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2476 # indexed CPUs but we're playing safe.
2477 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2478 # know they might have memory configurations that could make use of highmem
2479 # support.
2480 #
2481 config HIGHMEM
2482 bool "High Memory Support"
2483 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2484
2485 config CPU_SUPPORTS_HIGHMEM
2486 bool
2487
2488 config SYS_SUPPORTS_HIGHMEM
2489 bool
2490
2491 config SYS_SUPPORTS_SMARTMIPS
2492 bool
2493
2494 config SYS_SUPPORTS_MICROMIPS
2495 bool
2496
2497 config SYS_SUPPORTS_MIPS16
2498 bool
2499 help
2500 This option must be set if a kernel might be executed on a MIPS16-
2501 enabled CPU even if MIPS16 is not actually being used. In other
2502 words, it makes the kernel MIPS16-tolerant.
2503
2504 config CPU_SUPPORTS_MSA
2505 bool
2506
2507 config ARCH_FLATMEM_ENABLE
2508 def_bool y
2509 depends on !NUMA && !CPU_LOONGSON2
2510
2511 config ARCH_DISCONTIGMEM_ENABLE
2512 bool
2513 default y if SGI_IP27
2514 help
2515 Say Y to support efficient handling of discontiguous physical memory,
2516 for architectures which are either NUMA (Non-Uniform Memory Access)
2517 or have huge holes in the physical address space for other reasons.
2518 See <file:Documentation/vm/numa> for more.
2519
2520 config ARCH_SPARSEMEM_ENABLE
2521 bool
2522 select SPARSEMEM_STATIC
2523
2524 config NUMA
2525 bool "NUMA Support"
2526 depends on SYS_SUPPORTS_NUMA
2527 help
2528 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2529 Access). This option improves performance on systems with more
2530 than two nodes; on two node systems it is generally better to
2531 leave it disabled; on single node systems disable this option
2532 disabled.
2533
2534 config SYS_SUPPORTS_NUMA
2535 bool
2536
2537 config RELOCATABLE
2538 bool "Relocatable kernel"
2539 depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6)
2540 help
2541 This builds a kernel image that retains relocation information
2542 so it can be loaded someplace besides the default 1MB.
2543 The relocations make the kernel binary about 15% larger,
2544 but are discarded at runtime
2545
2546 config RELOCATION_TABLE_SIZE
2547 hex "Relocation table size"
2548 depends on RELOCATABLE
2549 range 0x0 0x01000000
2550 default "0x00100000"
2551 ---help---
2552 A table of relocation data will be appended to the kernel binary
2553 and parsed at boot to fix up the relocated kernel.
2554
2555 This option allows the amount of space reserved for the table to be
2556 adjusted, although the default of 1Mb should be ok in most cases.
2557
2558 The build will fail and a valid size suggested if this is too small.
2559
2560 If unsure, leave at the default value.
2561
2562 config RANDOMIZE_BASE
2563 bool "Randomize the address of the kernel image"
2564 depends on RELOCATABLE
2565 ---help---
2566 Randomizes the physical and virtual address at which the
2567 kernel image is loaded, as a security feature that
2568 deters exploit attempts relying on knowledge of the location
2569 of kernel internals.
2570
2571 Entropy is generated using any coprocessor 0 registers available.
2572
2573 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2574
2575 If unsure, say N.
2576
2577 config RANDOMIZE_BASE_MAX_OFFSET
2578 hex "Maximum kASLR offset" if EXPERT
2579 depends on RANDOMIZE_BASE
2580 range 0x0 0x40000000 if EVA || 64BIT
2581 range 0x0 0x08000000
2582 default "0x01000000"
2583 ---help---
2584 When kASLR is active, this provides the maximum offset that will
2585 be applied to the kernel image. It should be set according to the
2586 amount of physical RAM available in the target system minus
2587 PHYSICAL_START and must be a power of 2.
2588
2589 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2590 EVA or 64-bit. The default is 16Mb.
2591
2592 config NODES_SHIFT
2593 int
2594 default "6"
2595 depends on NEED_MULTIPLE_NODES
2596
2597 config HW_PERF_EVENTS
2598 bool "Enable hardware performance counter support for perf events"
2599 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2600 default y
2601 help
2602 Enable hardware performance counter support for perf events. If
2603 disabled, perf events will use software events only.
2604
2605 source "mm/Kconfig"
2606
2607 config SMP
2608 bool "Multi-Processing support"
2609 depends on SYS_SUPPORTS_SMP
2610 help
2611 This enables support for systems with more than one CPU. If you have
2612 a system with only one CPU, say N. If you have a system with more
2613 than one CPU, say Y.
2614
2615 If you say N here, the kernel will run on uni- and multiprocessor
2616 machines, but will use only one CPU of a multiprocessor machine. If
2617 you say Y here, the kernel will run on many, but not all,
2618 uniprocessor machines. On a uniprocessor machine, the kernel
2619 will run faster if you say N here.
2620
2621 People using multiprocessor machines who say Y here should also say
2622 Y to "Enhanced Real Time Clock Support", below.
2623
2624 See also the SMP-HOWTO available at
2625 <http://www.tldp.org/docs.html#howto>.
2626
2627 If you don't know what to do here, say N.
2628
2629 config HOTPLUG_CPU
2630 bool "Support for hot-pluggable CPUs"
2631 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2632 help
2633 Say Y here to allow turning CPUs off and on. CPUs can be
2634 controlled through /sys/devices/system/cpu.
2635 (Note: power management support will enable this option
2636 automatically on SMP systems. )
2637 Say N if you want to disable CPU hotplug.
2638
2639 config SMP_UP
2640 bool
2641
2642 config SYS_SUPPORTS_MIPS_CMP
2643 bool
2644
2645 config SYS_SUPPORTS_MIPS_CPS
2646 bool
2647
2648 config SYS_SUPPORTS_SMP
2649 bool
2650
2651 config NR_CPUS_DEFAULT_4
2652 bool
2653
2654 config NR_CPUS_DEFAULT_8
2655 bool
2656
2657 config NR_CPUS_DEFAULT_16
2658 bool
2659
2660 config NR_CPUS_DEFAULT_32
2661 bool
2662
2663 config NR_CPUS_DEFAULT_64
2664 bool
2665
2666 config NR_CPUS
2667 int "Maximum number of CPUs (2-256)"
2668 range 2 256
2669 depends on SMP
2670 default "4" if NR_CPUS_DEFAULT_4
2671 default "8" if NR_CPUS_DEFAULT_8
2672 default "16" if NR_CPUS_DEFAULT_16
2673 default "32" if NR_CPUS_DEFAULT_32
2674 default "64" if NR_CPUS_DEFAULT_64
2675 help
2676 This allows you to specify the maximum number of CPUs which this
2677 kernel will support. The maximum supported value is 32 for 32-bit
2678 kernel and 64 for 64-bit kernels; the minimum value which makes
2679 sense is 1 for Qemu (useful only for kernel debugging purposes)
2680 and 2 for all others.
2681
2682 This is purely to save memory - each supported CPU adds
2683 approximately eight kilobytes to the kernel image. For best
2684 performance should round up your number of processors to the next
2685 power of two.
2686
2687 config MIPS_PERF_SHARED_TC_COUNTERS
2688 bool
2689
2690 #
2691 # Timer Interrupt Frequency Configuration
2692 #
2693
2694 choice
2695 prompt "Timer frequency"
2696 default HZ_250
2697 help
2698 Allows the configuration of the timer frequency.
2699
2700 config HZ_24
2701 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2702
2703 config HZ_48
2704 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2705
2706 config HZ_100
2707 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2708
2709 config HZ_128
2710 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2711
2712 config HZ_250
2713 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2714
2715 config HZ_256
2716 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2717
2718 config HZ_1000
2719 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2720
2721 config HZ_1024
2722 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2723
2724 endchoice
2725
2726 config SYS_SUPPORTS_24HZ
2727 bool
2728
2729 config SYS_SUPPORTS_48HZ
2730 bool
2731
2732 config SYS_SUPPORTS_100HZ
2733 bool
2734
2735 config SYS_SUPPORTS_128HZ
2736 bool
2737
2738 config SYS_SUPPORTS_250HZ
2739 bool
2740
2741 config SYS_SUPPORTS_256HZ
2742 bool
2743
2744 config SYS_SUPPORTS_1000HZ
2745 bool
2746
2747 config SYS_SUPPORTS_1024HZ
2748 bool
2749
2750 config SYS_SUPPORTS_ARBIT_HZ
2751 bool
2752 default y if !SYS_SUPPORTS_24HZ && \
2753 !SYS_SUPPORTS_48HZ && \
2754 !SYS_SUPPORTS_100HZ && \
2755 !SYS_SUPPORTS_128HZ && \
2756 !SYS_SUPPORTS_250HZ && \
2757 !SYS_SUPPORTS_256HZ && \
2758 !SYS_SUPPORTS_1000HZ && \
2759 !SYS_SUPPORTS_1024HZ
2760
2761 config HZ
2762 int
2763 default 24 if HZ_24
2764 default 48 if HZ_48
2765 default 100 if HZ_100
2766 default 128 if HZ_128
2767 default 250 if HZ_250
2768 default 256 if HZ_256
2769 default 1000 if HZ_1000
2770 default 1024 if HZ_1024
2771
2772 config SCHED_HRTICK
2773 def_bool HIGH_RES_TIMERS
2774
2775 source "kernel/Kconfig.preempt"
2776
2777 config KEXEC
2778 bool "Kexec system call"
2779 select KEXEC_CORE
2780 help
2781 kexec is a system call that implements the ability to shutdown your
2782 current kernel, and to start another kernel. It is like a reboot
2783 but it is independent of the system firmware. And like a reboot
2784 you can start any kernel with it, not just Linux.
2785
2786 The name comes from the similarity to the exec system call.
2787
2788 It is an ongoing process to be certain the hardware in a machine
2789 is properly shutdown, so do not be surprised if this code does not
2790 initially work for you. As of this writing the exact hardware
2791 interface is strongly in flux, so no good recommendation can be
2792 made.
2793
2794 config CRASH_DUMP
2795 bool "Kernel crash dumps"
2796 help
2797 Generate crash dump after being started by kexec.
2798 This should be normally only set in special crash dump kernels
2799 which are loaded in the main kernel with kexec-tools into
2800 a specially reserved region and then later executed after
2801 a crash by kdump/kexec. The crash dump kernel must be compiled
2802 to a memory address not used by the main kernel or firmware using
2803 PHYSICAL_START.
2804
2805 config PHYSICAL_START
2806 hex "Physical address where the kernel is loaded"
2807 default "0xffffffff84000000" if 64BIT
2808 default "0x84000000" if 32BIT
2809 depends on CRASH_DUMP
2810 help
2811 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2812 If you plan to use kernel for capturing the crash dump change
2813 this value to start of the reserved region (the "X" value as
2814 specified in the "crashkernel=YM@XM" command line boot parameter
2815 passed to the panic-ed kernel).
2816
2817 config SECCOMP
2818 bool "Enable seccomp to safely compute untrusted bytecode"
2819 depends on PROC_FS
2820 default y
2821 help
2822 This kernel feature is useful for number crunching applications
2823 that may need to compute untrusted bytecode during their
2824 execution. By using pipes or other transports made available to
2825 the process as file descriptors supporting the read/write
2826 syscalls, it's possible to isolate those applications in
2827 their own address space using seccomp. Once seccomp is
2828 enabled via /proc/<pid>/seccomp, it cannot be disabled
2829 and the task is only allowed to execute a few safe syscalls
2830 defined by each seccomp mode.
2831
2832 If unsure, say Y. Only embedded should say N here.
2833
2834 config MIPS_O32_FP64_SUPPORT
2835 bool "Support for O32 binaries using 64-bit FP"
2836 depends on 32BIT || MIPS32_O32
2837 help
2838 When this is enabled, the kernel will support use of 64-bit floating
2839 point registers with binaries using the O32 ABI along with the
2840 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2841 32-bit MIPS systems this support is at the cost of increasing the
2842 size and complexity of the compiled FPU emulator. Thus if you are
2843 running a MIPS32 system and know that none of your userland binaries
2844 will require 64-bit floating point, you may wish to reduce the size
2845 of your kernel & potentially improve FP emulation performance by
2846 saying N here.
2847
2848 Although binutils currently supports use of this flag the details
2849 concerning its effect upon the O32 ABI in userland are still being
2850 worked on. In order to avoid userland becoming dependant upon current
2851 behaviour before the details have been finalised, this option should
2852 be considered experimental and only enabled by those working upon
2853 said details.
2854
2855 If unsure, say N.
2856
2857 config USE_OF
2858 bool
2859 select OF
2860 select OF_EARLY_FLATTREE
2861 select IRQ_DOMAIN
2862
2863 config BUILTIN_DTB
2864 bool
2865
2866 choice
2867 prompt "Kernel appended dtb support" if USE_OF
2868 default MIPS_NO_APPENDED_DTB
2869
2870 config MIPS_NO_APPENDED_DTB
2871 bool "None"
2872 help
2873 Do not enable appended dtb support.
2874
2875 config MIPS_ELF_APPENDED_DTB
2876 bool "vmlinux"
2877 help
2878 With this option, the boot code will look for a device tree binary
2879 DTB) included in the vmlinux ELF section .appended_dtb. By default
2880 it is empty and the DTB can be appended using binutils command
2881 objcopy:
2882
2883 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
2884
2885 This is meant as a backward compatiblity convenience for those
2886 systems with a bootloader that can't be upgraded to accommodate
2887 the documented boot protocol using a device tree.
2888
2889 config MIPS_RAW_APPENDED_DTB
2890 bool "vmlinux.bin or vmlinuz.bin"
2891 help
2892 With this option, the boot code will look for a device tree binary
2893 DTB) appended to raw vmlinux.bin or vmlinuz.bin.
2894 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
2895
2896 This is meant as a backward compatibility convenience for those
2897 systems with a bootloader that can't be upgraded to accommodate
2898 the documented boot protocol using a device tree.
2899
2900 Beware that there is very little in terms of protection against
2901 this option being confused by leftover garbage in memory that might
2902 look like a DTB header after a reboot if no actual DTB is appended
2903 to vmlinux.bin. Do not leave this option active in a production kernel
2904 if you don't intend to always append a DTB.
2905 endchoice
2906
2907 choice
2908 prompt "Kernel command line type" if !CMDLINE_OVERRIDE
2909 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
2910 !MIPS_MALTA && !MIPS_SEAD3 && \
2911 !CAVIUM_OCTEON_SOC
2912 default MIPS_CMDLINE_FROM_BOOTLOADER
2913
2914 config MIPS_CMDLINE_FROM_DTB
2915 depends on USE_OF
2916 bool "Dtb kernel arguments if available"
2917
2918 config MIPS_CMDLINE_DTB_EXTEND
2919 depends on USE_OF
2920 bool "Extend dtb kernel arguments with bootloader arguments"
2921
2922 config MIPS_CMDLINE_FROM_BOOTLOADER
2923 bool "Bootloader kernel arguments if available"
2924
2925 config MIPS_CMDLINE_BUILTIN_EXTEND
2926 depends on CMDLINE_BOOL
2927 bool "Extend builtin kernel arguments with bootloader arguments"
2928 endchoice
2929
2930 endmenu
2931
2932 config LOCKDEP_SUPPORT
2933 bool
2934 default y
2935
2936 config STACKTRACE_SUPPORT
2937 bool
2938 default y
2939
2940 config HAVE_LATENCYTOP_SUPPORT
2941 bool
2942 default y
2943
2944 config PGTABLE_LEVELS
2945 int
2946 default 3 if 64BIT && !PAGE_SIZE_64KB
2947 default 2
2948
2949 source "init/Kconfig"
2950
2951 source "kernel/Kconfig.freezer"
2952
2953 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2954
2955 config HW_HAS_EISA
2956 bool
2957 config HW_HAS_PCI
2958 bool
2959
2960 config PCI
2961 bool "Support for PCI controller"
2962 depends on HW_HAS_PCI
2963 select PCI_DOMAINS
2964 select NO_GENERIC_PCI_IOPORT_MAP
2965 help
2966 Find out whether you have a PCI motherboard. PCI is the name of a
2967 bus system, i.e. the way the CPU talks to the other stuff inside
2968 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2969 say Y, otherwise N.
2970
2971 config HT_PCI
2972 bool "Support for HT-linked PCI"
2973 default y
2974 depends on CPU_LOONGSON3
2975 select PCI
2976 select PCI_DOMAINS
2977 help
2978 Loongson family machines use Hyper-Transport bus for inter-core
2979 connection and device connection. The PCI bus is a subordinate
2980 linked at HT. Choose Y for Loongson-3 based machines.
2981
2982 config PCI_DOMAINS
2983 bool
2984
2985 source "drivers/pci/Kconfig"
2986
2987 #
2988 # ISA support is now enabled via select. Too many systems still have the one
2989 # or other ISA chip on the board that users don't know about so don't expect
2990 # users to choose the right thing ...
2991 #
2992 config ISA
2993 bool
2994
2995 config EISA
2996 bool "EISA support"
2997 depends on HW_HAS_EISA
2998 select ISA
2999 select GENERIC_ISA_DMA
3000 ---help---
3001 The Extended Industry Standard Architecture (EISA) bus was
3002 developed as an open alternative to the IBM MicroChannel bus.
3003
3004 The EISA bus provided some of the features of the IBM MicroChannel
3005 bus while maintaining backward compatibility with cards made for
3006 the older ISA bus. The EISA bus saw limited use between 1988 and
3007 1995 when it was made obsolete by the PCI bus.
3008
3009 Say Y here if you are building a kernel for an EISA-based machine.
3010
3011 Otherwise, say N.
3012
3013 source "drivers/eisa/Kconfig"
3014
3015 config TC
3016 bool "TURBOchannel support"
3017 depends on MACH_DECSTATION
3018 help
3019 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3020 processors. TURBOchannel programming specifications are available
3021 at:
3022 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3023 and:
3024 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3025 Linux driver support status is documented at:
3026 <http://www.linux-mips.org/wiki/DECstation>
3027
3028 config MMU
3029 bool
3030 default y
3031
3032 config I8253
3033 bool
3034 select CLKSRC_I8253
3035 select CLKEVT_I8253
3036 select MIPS_EXTERNAL_TIMER
3037
3038 config ZONE_DMA
3039 bool
3040
3041 config ZONE_DMA32
3042 bool
3043
3044 source "drivers/pcmcia/Kconfig"
3045
3046 config RAPIDIO
3047 tristate "RapidIO support"
3048 depends on PCI
3049 default n
3050 help
3051 If you say Y here, the kernel will include drivers and
3052 infrastructure code to support RapidIO interconnect devices.
3053
3054 source "drivers/rapidio/Kconfig"
3055
3056 endmenu
3057
3058 menu "Executable file formats"
3059
3060 source "fs/Kconfig.binfmt"
3061
3062 config TRAD_SIGNALS
3063 bool
3064
3065 config MIPS32_COMPAT
3066 bool
3067
3068 config COMPAT
3069 bool
3070
3071 config SYSVIPC_COMPAT
3072 bool
3073
3074 config MIPS32_O32
3075 bool "Kernel support for o32 binaries"
3076 depends on 64BIT
3077 select ARCH_WANT_OLD_COMPAT_IPC
3078 select COMPAT
3079 select MIPS32_COMPAT
3080 select SYSVIPC_COMPAT if SYSVIPC
3081 help
3082 Select this option if you want to run o32 binaries. These are pure
3083 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
3084 existing binaries are in this format.
3085
3086 If unsure, say Y.
3087
3088 config MIPS32_N32
3089 bool "Kernel support for n32 binaries"
3090 depends on 64BIT
3091 select COMPAT
3092 select MIPS32_COMPAT
3093 select SYSVIPC_COMPAT if SYSVIPC
3094 help
3095 Select this option if you want to run n32 binaries. These are
3096 64-bit binaries using 32-bit quantities for addressing and certain
3097 data that would normally be 64-bit. They are used in special
3098 cases.
3099
3100 If unsure, say N.
3101
3102 config BINFMT_ELF32
3103 bool
3104 default y if MIPS32_O32 || MIPS32_N32
3105 select ELFCORE
3106
3107 endmenu
3108
3109 menu "Power management options"
3110
3111 config ARCH_HIBERNATION_POSSIBLE
3112 def_bool y
3113 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3114
3115 config ARCH_SUSPEND_POSSIBLE
3116 def_bool y
3117 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3118
3119 source "kernel/power/Kconfig"
3120
3121 endmenu
3122
3123 config MIPS_EXTERNAL_TIMER
3124 bool
3125
3126 menu "CPU Power Management"
3127
3128 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3129 source "drivers/cpufreq/Kconfig"
3130 endif
3131
3132 source "drivers/cpuidle/Kconfig"
3133
3134 endmenu
3135
3136 source "net/Kconfig"
3137
3138 source "drivers/Kconfig"
3139
3140 source "drivers/firmware/Kconfig"
3141
3142 source "fs/Kconfig"
3143
3144 source "arch/mips/Kconfig.debug"
3145
3146 source "security/Kconfig"
3147
3148 source "crypto/Kconfig"
3149
3150 source "lib/Kconfig"
3151
3152 source "arch/mips/kvm/Kconfig"