MIPS: SiByte: Enable swiotlb for SWARM, LittleSur and BigSur
[linux-2.6-block.git] / arch / mips / Kconfig
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1# SPDX-License-Identifier: GPL-2.0
2config MIPS
3 bool
4 default y
5 select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT
6 select ARCH_CLOCKSOURCE_DATA
7 select ARCH_DISCARD_MEMBLOCK
8 select ARCH_HAS_ELF_RANDOMIZE
9 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
10 select ARCH_SUPPORTS_UPROBES
11 select ARCH_USE_BUILTIN_BSWAP
12 select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
13 select ARCH_USE_QUEUED_RWLOCKS
14 select ARCH_USE_QUEUED_SPINLOCKS
15 select ARCH_WANT_IPC_PARSE_VERSION
16 select BUILDTIME_EXTABLE_SORT
17 select CLONE_BACKWARDS
18 select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
19 select CPU_PM if CPU_IDLE
20 select DMA_DIRECT_OPS
21 select GENERIC_ATOMIC64 if !64BIT
22 select GENERIC_CLOCKEVENTS
23 select GENERIC_CMOS_UPDATE
24 select GENERIC_CPU_AUTOPROBE
25 select GENERIC_IOMAP
26 select GENERIC_IRQ_PROBE
27 select GENERIC_IRQ_SHOW
28 select GENERIC_LIB_ASHLDI3
29 select GENERIC_LIB_ASHRDI3
30 select GENERIC_LIB_CMPDI2
31 select GENERIC_LIB_LSHRDI3
32 select GENERIC_LIB_UCMPDI2
33 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
34 select GENERIC_SMP_IDLE_THREAD
35 select GENERIC_TIME_VSYSCALL
36 select HANDLE_DOMAIN_IRQ
37 select HAVE_ARCH_COMPILER_H
38 select HAVE_ARCH_JUMP_LABEL
39 select HAVE_ARCH_KGDB
40 select HAVE_ARCH_MMAP_RND_BITS if MMU
41 select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
42 select HAVE_ARCH_SECCOMP_FILTER
43 select HAVE_ARCH_TRACEHOOK
44 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
45 select HAVE_CBPF_JIT if (!64BIT && !CPU_MICROMIPS)
46 select HAVE_EBPF_JIT if (64BIT && !CPU_MICROMIPS)
47 select HAVE_CONTEXT_TRACKING
48 select HAVE_COPY_THREAD_TLS
49 select HAVE_C_RECORDMCOUNT
50 select HAVE_DEBUG_KMEMLEAK
51 select HAVE_DEBUG_STACKOVERFLOW
52 select HAVE_DMA_CONTIGUOUS
53 select HAVE_DYNAMIC_FTRACE
54 select HAVE_EXIT_THREAD
55 select HAVE_FTRACE_MCOUNT_RECORD
56 select HAVE_FUNCTION_GRAPH_TRACER
57 select HAVE_FUNCTION_TRACER
58 select HAVE_GENERIC_DMA_COHERENT
59 select HAVE_IDE
60 select HAVE_IOREMAP_PROT
61 select HAVE_IRQ_EXIT_ON_IRQ_STACK
62 select HAVE_IRQ_TIME_ACCOUNTING
63 select HAVE_KPROBES
64 select HAVE_KRETPROBES
65 select HAVE_MEMBLOCK_NODE_MAP
66 select HAVE_MOD_ARCH_SPECIFIC
67 select HAVE_NMI
68 select HAVE_OPROFILE
69 select HAVE_PERF_EVENTS
70 select HAVE_REGS_AND_STACK_ACCESS_API
71 select HAVE_RSEQ
72 select HAVE_STACKPROTECTOR
73 select HAVE_SYSCALL_TRACEPOINTS
74 select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
75 select IRQ_FORCED_THREADING
76 select MODULES_USE_ELF_RELA if MODULES && 64BIT
77 select MODULES_USE_ELF_REL if MODULES
78 select PERF_USE_VMALLOC
79 select RTC_LIB
80 select SYSCTL_EXCEPTION_TRACE
81 select VIRT_TO_BUS
82
83menu "Machine selection"
84
85choice
86 prompt "System type"
87 default MIPS_GENERIC
88
89config MIPS_GENERIC
90 bool "Generic board-agnostic MIPS kernel"
91 select BOOT_RAW
92 select BUILTIN_DTB
93 select CEVT_R4K
94 select CLKSRC_MIPS_GIC
95 select COMMON_CLK
96 select CPU_MIPSR2_IRQ_VI
97 select CPU_MIPSR2_IRQ_EI
98 select CSRC_R4K
99 select DMA_PERDEV_COHERENT
100 select HW_HAS_PCI
101 select IRQ_MIPS_CPU
102 select LIBFDT
103 select MIPS_AUTO_PFN_OFFSET
104 select MIPS_CPU_SCACHE
105 select MIPS_GIC
106 select MIPS_L1_CACHE_SHIFT_7
107 select NO_EXCEPT_FILL
108 select PCI_DRIVERS_GENERIC
109 select PINCTRL
110 select SMP_UP if SMP
111 select SWAP_IO_SPACE
112 select SYS_HAS_CPU_MIPS32_R1
113 select SYS_HAS_CPU_MIPS32_R2
114 select SYS_HAS_CPU_MIPS32_R6
115 select SYS_HAS_CPU_MIPS64_R1
116 select SYS_HAS_CPU_MIPS64_R2
117 select SYS_HAS_CPU_MIPS64_R6
118 select SYS_SUPPORTS_32BIT_KERNEL
119 select SYS_SUPPORTS_64BIT_KERNEL
120 select SYS_SUPPORTS_BIG_ENDIAN
121 select SYS_SUPPORTS_HIGHMEM
122 select SYS_SUPPORTS_LITTLE_ENDIAN
123 select SYS_SUPPORTS_MICROMIPS
124 select SYS_SUPPORTS_MIPS_CPS
125 select SYS_SUPPORTS_MIPS16
126 select SYS_SUPPORTS_MULTITHREADING
127 select SYS_SUPPORTS_RELOCATABLE
128 select SYS_SUPPORTS_SMARTMIPS
129 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
130 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
131 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
132 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
133 select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
134 select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
135 select USE_OF
136 select UHI_BOOT
137 help
138 Select this to build a kernel which aims to support multiple boards,
139 generally using a flattened device tree passed from the bootloader
140 using the boot protocol defined in the UHI (Unified Hosting
141 Interface) specification.
142
143config MIPS_ALCHEMY
144 bool "Alchemy processor based machines"
145 select PHYS_ADDR_T_64BIT
146 select CEVT_R4K
147 select CSRC_R4K
148 select IRQ_MIPS_CPU
149 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is
150 select SYS_HAS_CPU_MIPS32_R1
151 select SYS_SUPPORTS_32BIT_KERNEL
152 select SYS_SUPPORTS_APM_EMULATION
153 select GPIOLIB
154 select SYS_SUPPORTS_ZBOOT
155 select COMMON_CLK
156
157config AR7
158 bool "Texas Instruments AR7"
159 select BOOT_ELF32
160 select DMA_NONCOHERENT
161 select CEVT_R4K
162 select CSRC_R4K
163 select IRQ_MIPS_CPU
164 select NO_EXCEPT_FILL
165 select SWAP_IO_SPACE
166 select SYS_HAS_CPU_MIPS32_R1
167 select SYS_HAS_EARLY_PRINTK
168 select SYS_SUPPORTS_32BIT_KERNEL
169 select SYS_SUPPORTS_LITTLE_ENDIAN
170 select SYS_SUPPORTS_MIPS16
171 select SYS_SUPPORTS_ZBOOT_UART16550
172 select GPIOLIB
173 select VLYNQ
174 select HAVE_CLK
175 help
176 Support for the Texas Instruments AR7 System-on-a-Chip
177 family: TNETD7100, 7200 and 7300.
178
179config ATH25
180 bool "Atheros AR231x/AR531x SoC support"
181 select CEVT_R4K
182 select CSRC_R4K
183 select DMA_NONCOHERENT
184 select IRQ_MIPS_CPU
185 select IRQ_DOMAIN
186 select SYS_HAS_CPU_MIPS32_R1
187 select SYS_SUPPORTS_BIG_ENDIAN
188 select SYS_SUPPORTS_32BIT_KERNEL
189 select SYS_HAS_EARLY_PRINTK
190 help
191 Support for Atheros AR231x and Atheros AR531x based boards
192
193config ATH79
194 bool "Atheros AR71XX/AR724X/AR913X based boards"
195 select ARCH_HAS_RESET_CONTROLLER
196 select BOOT_RAW
197 select CEVT_R4K
198 select CSRC_R4K
199 select DMA_NONCOHERENT
200 select GPIOLIB
201 select PINCTRL
202 select HAVE_CLK
203 select COMMON_CLK
204 select CLKDEV_LOOKUP
205 select IRQ_MIPS_CPU
206 select MIPS_MACHINE
207 select SYS_HAS_CPU_MIPS32_R2
208 select SYS_HAS_EARLY_PRINTK
209 select SYS_SUPPORTS_32BIT_KERNEL
210 select SYS_SUPPORTS_BIG_ENDIAN
211 select SYS_SUPPORTS_MIPS16
212 select SYS_SUPPORTS_ZBOOT_UART_PROM
213 select USE_OF
214 select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM
215 help
216 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
217
218config BMIPS_GENERIC
219 bool "Broadcom Generic BMIPS kernel"
220 select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
221 select ARCH_HAS_PHYS_TO_DMA
222 select BOOT_RAW
223 select NO_EXCEPT_FILL
224 select USE_OF
225 select CEVT_R4K
226 select CSRC_R4K
227 select SYNC_R4K
228 select COMMON_CLK
229 select BCM6345_L1_IRQ
230 select BCM7038_L1_IRQ
231 select BCM7120_L2_IRQ
232 select BRCMSTB_L2_IRQ
233 select IRQ_MIPS_CPU
234 select DMA_NONCOHERENT
235 select SYS_SUPPORTS_32BIT_KERNEL
236 select SYS_SUPPORTS_LITTLE_ENDIAN
237 select SYS_SUPPORTS_BIG_ENDIAN
238 select SYS_SUPPORTS_HIGHMEM
239 select SYS_HAS_CPU_BMIPS32_3300
240 select SYS_HAS_CPU_BMIPS4350
241 select SYS_HAS_CPU_BMIPS4380
242 select SYS_HAS_CPU_BMIPS5000
243 select SWAP_IO_SPACE
244 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
245 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
246 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
247 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
248 select HARDIRQS_SW_RESEND
249 help
250 Build a generic DT-based kernel image that boots on select
251 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
252 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
253 must be set appropriately for your board.
254
255config BCM47XX
256 bool "Broadcom BCM47XX based boards"
257 select BOOT_RAW
258 select CEVT_R4K
259 select CSRC_R4K
260 select DMA_NONCOHERENT
261 select HW_HAS_PCI
262 select IRQ_MIPS_CPU
263 select SYS_HAS_CPU_MIPS32_R1
264 select NO_EXCEPT_FILL
265 select SYS_SUPPORTS_32BIT_KERNEL
266 select SYS_SUPPORTS_LITTLE_ENDIAN
267 select SYS_SUPPORTS_MIPS16
268 select SYS_SUPPORTS_ZBOOT
269 select SYS_HAS_EARLY_PRINTK
270 select USE_GENERIC_EARLY_PRINTK_8250
271 select GPIOLIB
272 select LEDS_GPIO_REGISTER
273 select BCM47XX_NVRAM
274 select BCM47XX_SPROM
275 select BCM47XX_SSB if !BCM47XX_BCMA
276 help
277 Support for BCM47XX based boards
278
279config BCM63XX
280 bool "Broadcom BCM63XX based boards"
281 select BOOT_RAW
282 select CEVT_R4K
283 select CSRC_R4K
284 select SYNC_R4K
285 select DMA_NONCOHERENT
286 select IRQ_MIPS_CPU
287 select SYS_SUPPORTS_32BIT_KERNEL
288 select SYS_SUPPORTS_BIG_ENDIAN
289 select SYS_HAS_EARLY_PRINTK
290 select SWAP_IO_SPACE
291 select GPIOLIB
292 select HAVE_CLK
293 select MIPS_L1_CACHE_SHIFT_4
294 select CLKDEV_LOOKUP
295 help
296 Support for BCM63XX based boards
297
298config MIPS_COBALT
299 bool "Cobalt Server"
300 select CEVT_R4K
301 select CSRC_R4K
302 select CEVT_GT641XX
303 select DMA_NONCOHERENT
304 select HW_HAS_PCI
305 select I8253
306 select I8259
307 select IRQ_MIPS_CPU
308 select IRQ_GT641XX
309 select PCI_GT64XXX_PCI0
310 select PCI
311 select SYS_HAS_CPU_NEVADA
312 select SYS_HAS_EARLY_PRINTK
313 select SYS_SUPPORTS_32BIT_KERNEL
314 select SYS_SUPPORTS_64BIT_KERNEL
315 select SYS_SUPPORTS_LITTLE_ENDIAN
316 select USE_GENERIC_EARLY_PRINTK_8250
317
318config MACH_DECSTATION
319 bool "DECstations"
320 select BOOT_ELF32
321 select CEVT_DS1287
322 select CEVT_R4K if CPU_R4X00
323 select CSRC_IOASIC
324 select CSRC_R4K if CPU_R4X00
325 select CPU_DADDI_WORKAROUNDS if 64BIT
326 select CPU_R4000_WORKAROUNDS if 64BIT
327 select CPU_R4400_WORKAROUNDS if 64BIT
328 select DMA_NONCOHERENT
329 select NO_IOPORT_MAP
330 select IRQ_MIPS_CPU
331 select SYS_HAS_CPU_R3000
332 select SYS_HAS_CPU_R4X00
333 select SYS_SUPPORTS_32BIT_KERNEL
334 select SYS_SUPPORTS_64BIT_KERNEL
335 select SYS_SUPPORTS_LITTLE_ENDIAN
336 select SYS_SUPPORTS_128HZ
337 select SYS_SUPPORTS_256HZ
338 select SYS_SUPPORTS_1024HZ
339 select MIPS_L1_CACHE_SHIFT_4
340 help
341 This enables support for DEC's MIPS based workstations. For details
342 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
343 DECstation porting pages on <http://decstation.unix-ag.org/>.
344
345 If you have one of the following DECstation Models you definitely
346 want to choose R4xx0 for the CPU Type:
347
348 DECstation 5000/50
349 DECstation 5000/150
350 DECstation 5000/260
351 DECsystem 5900/260
352
353 otherwise choose R3000.
354
355config MACH_JAZZ
356 bool "Jazz family of machines"
357 select ARCH_MIGHT_HAVE_PC_PARPORT
358 select ARCH_MIGHT_HAVE_PC_SERIO
359 select FW_ARC
360 select FW_ARC32
361 select ARCH_MAY_HAVE_PC_FDC
362 select CEVT_R4K
363 select CSRC_R4K
364 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
365 select GENERIC_ISA_DMA
366 select HAVE_PCSPKR_PLATFORM
367 select IRQ_MIPS_CPU
368 select I8253
369 select I8259
370 select ISA
371 select SYS_HAS_CPU_R4X00
372 select SYS_SUPPORTS_32BIT_KERNEL
373 select SYS_SUPPORTS_64BIT_KERNEL
374 select SYS_SUPPORTS_100HZ
375 help
376 This a family of machines based on the MIPS R4030 chipset which was
377 used by several vendors to build RISC/os and Windows NT workstations.
378 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
379 Olivetti M700-10 workstations.
380
381config MACH_INGENIC
382 bool "Ingenic SoC based machines"
383 select SYS_SUPPORTS_32BIT_KERNEL
384 select SYS_SUPPORTS_LITTLE_ENDIAN
385 select SYS_SUPPORTS_ZBOOT_UART16550
386 select DMA_NONCOHERENT
387 select IRQ_MIPS_CPU
388 select PINCTRL
389 select GPIOLIB
390 select COMMON_CLK
391 select GENERIC_IRQ_CHIP
392 select BUILTIN_DTB
393 select USE_OF
394 select LIBFDT
395
396config LANTIQ
397 bool "Lantiq based platforms"
398 select DMA_NONCOHERENT
399 select IRQ_MIPS_CPU
400 select CEVT_R4K
401 select CSRC_R4K
402 select SYS_HAS_CPU_MIPS32_R1
403 select SYS_HAS_CPU_MIPS32_R2
404 select SYS_SUPPORTS_BIG_ENDIAN
405 select SYS_SUPPORTS_32BIT_KERNEL
406 select SYS_SUPPORTS_MIPS16
407 select SYS_SUPPORTS_MULTITHREADING
408 select SYS_SUPPORTS_VPE_LOADER
409 select SYS_HAS_EARLY_PRINTK
410 select GPIOLIB
411 select SWAP_IO_SPACE
412 select BOOT_RAW
413 select CLKDEV_LOOKUP
414 select USE_OF
415 select PINCTRL
416 select PINCTRL_LANTIQ
417 select ARCH_HAS_RESET_CONTROLLER
418 select RESET_CONTROLLER
419
420config LASAT
421 bool "LASAT Networks platforms"
422 select CEVT_R4K
423 select CRC32
424 select CSRC_R4K
425 select DMA_NONCOHERENT
426 select SYS_HAS_EARLY_PRINTK
427 select HW_HAS_PCI
428 select IRQ_MIPS_CPU
429 select PCI_GT64XXX_PCI0
430 select MIPS_NILE4
431 select R5000_CPU_SCACHE
432 select SYS_HAS_CPU_R5000
433 select SYS_SUPPORTS_32BIT_KERNEL
434 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
435 select SYS_SUPPORTS_LITTLE_ENDIAN
436
437config MACH_LOONGSON32
438 bool "Loongson-1 family of machines"
439 select SYS_SUPPORTS_ZBOOT
440 help
441 This enables support for the Loongson-1 family of machines.
442
443 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
444 the Institute of Computing Technology (ICT), Chinese Academy of
445 Sciences (CAS).
446
447config MACH_LOONGSON64
448 bool "Loongson-2/3 family of machines"
449 select SYS_SUPPORTS_ZBOOT
450 help
451 This enables the support of Loongson-2/3 family of machines.
452
453 Loongson-2 is a family of single-core CPUs and Loongson-3 is a
454 family of multi-core CPUs. They are both 64-bit general-purpose
455 MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute
456 of Computing Technology (ICT), Chinese Academy of Sciences (CAS)
457 in the People's Republic of China. The chief architect is Professor
458 Weiwu Hu.
459
460config MACH_PISTACHIO
461 bool "IMG Pistachio SoC based boards"
462 select BOOT_ELF32
463 select BOOT_RAW
464 select CEVT_R4K
465 select CLKSRC_MIPS_GIC
466 select COMMON_CLK
467 select CSRC_R4K
468 select DMA_NONCOHERENT
469 select GPIOLIB
470 select IRQ_MIPS_CPU
471 select LIBFDT
472 select MFD_SYSCON
473 select MIPS_CPU_SCACHE
474 select MIPS_GIC
475 select PINCTRL
476 select REGULATOR
477 select SYS_HAS_CPU_MIPS32_R2
478 select SYS_SUPPORTS_32BIT_KERNEL
479 select SYS_SUPPORTS_LITTLE_ENDIAN
480 select SYS_SUPPORTS_MIPS_CPS
481 select SYS_SUPPORTS_MULTITHREADING
482 select SYS_SUPPORTS_RELOCATABLE
483 select SYS_SUPPORTS_ZBOOT
484 select SYS_HAS_EARLY_PRINTK
485 select USE_GENERIC_EARLY_PRINTK_8250
486 select USE_OF
487 help
488 This enables support for the IMG Pistachio SoC platform.
489
490config MIPS_MALTA
491 bool "MIPS Malta board"
492 select ARCH_MAY_HAVE_PC_FDC
493 select ARCH_MIGHT_HAVE_PC_PARPORT
494 select ARCH_MIGHT_HAVE_PC_SERIO
495 select BOOT_ELF32
496 select BOOT_RAW
497 select BUILTIN_DTB
498 select CEVT_R4K
499 select CLKSRC_MIPS_GIC
500 select COMMON_CLK
501 select CSRC_R4K
502 select DMA_MAYBE_COHERENT
503 select GENERIC_ISA_DMA
504 select HAVE_PCSPKR_PLATFORM
505 select HW_HAS_PCI
506 select I8253
507 select I8259
508 select IRQ_MIPS_CPU
509 select LIBFDT
510 select MIPS_BONITO64
511 select MIPS_CPU_SCACHE
512 select MIPS_GIC
513 select MIPS_L1_CACHE_SHIFT_6
514 select MIPS_MSC
515 select PCI_GT64XXX_PCI0
516 select SMP_UP if SMP
517 select SWAP_IO_SPACE
518 select SYS_HAS_CPU_MIPS32_R1
519 select SYS_HAS_CPU_MIPS32_R2
520 select SYS_HAS_CPU_MIPS32_R3_5
521 select SYS_HAS_CPU_MIPS32_R5
522 select SYS_HAS_CPU_MIPS32_R6
523 select SYS_HAS_CPU_MIPS64_R1
524 select SYS_HAS_CPU_MIPS64_R2
525 select SYS_HAS_CPU_MIPS64_R6
526 select SYS_HAS_CPU_NEVADA
527 select SYS_HAS_CPU_RM7000
528 select SYS_SUPPORTS_32BIT_KERNEL
529 select SYS_SUPPORTS_64BIT_KERNEL
530 select SYS_SUPPORTS_BIG_ENDIAN
531 select SYS_SUPPORTS_HIGHMEM
532 select SYS_SUPPORTS_LITTLE_ENDIAN
533 select SYS_SUPPORTS_MICROMIPS
534 select SYS_SUPPORTS_MIPS16
535 select SYS_SUPPORTS_MIPS_CMP
536 select SYS_SUPPORTS_MIPS_CPS
537 select SYS_SUPPORTS_MULTITHREADING
538 select SYS_SUPPORTS_RELOCATABLE
539 select SYS_SUPPORTS_SMARTMIPS
540 select SYS_SUPPORTS_VPE_LOADER
541 select SYS_SUPPORTS_ZBOOT
542 select USE_OF
543 select ZONE_DMA32 if 64BIT
544 help
545 This enables support for the MIPS Technologies Malta evaluation
546 board.
547
548config MACH_PIC32
549 bool "Microchip PIC32 Family"
550 help
551 This enables support for the Microchip PIC32 family of platforms.
552
553 Microchip PIC32 is a family of general-purpose 32 bit MIPS core
554 microcontrollers.
555
556config NEC_MARKEINS
557 bool "NEC EMMA2RH Mark-eins board"
558 select SOC_EMMA2RH
559 select HW_HAS_PCI
560 help
561 This enables support for the NEC Electronics Mark-eins boards.
562
563config MACH_VR41XX
564 bool "NEC VR4100 series based machines"
565 select CEVT_R4K
566 select CSRC_R4K
567 select SYS_HAS_CPU_VR41XX
568 select SYS_SUPPORTS_MIPS16
569 select GPIOLIB
570
571config NXP_STB220
572 bool "NXP STB220 board"
573 select SOC_PNX833X
574 help
575 Support for NXP Semiconductors STB220 Development Board.
576
577config NXP_STB225
578 bool "NXP 225 board"
579 select SOC_PNX833X
580 select SOC_PNX8335
581 help
582 Support for NXP Semiconductors STB225 Development Board.
583
584config PMC_MSP
585 bool "PMC-Sierra MSP chipsets"
586 select CEVT_R4K
587 select CSRC_R4K
588 select DMA_NONCOHERENT
589 select SWAP_IO_SPACE
590 select NO_EXCEPT_FILL
591 select BOOT_RAW
592 select SYS_HAS_CPU_MIPS32_R1
593 select SYS_HAS_CPU_MIPS32_R2
594 select SYS_SUPPORTS_32BIT_KERNEL
595 select SYS_SUPPORTS_BIG_ENDIAN
596 select SYS_SUPPORTS_MIPS16
597 select IRQ_MIPS_CPU
598 select SERIAL_8250
599 select SERIAL_8250_CONSOLE
600 select USB_EHCI_BIG_ENDIAN_MMIO
601 select USB_EHCI_BIG_ENDIAN_DESC
602 help
603 This adds support for the PMC-Sierra family of Multi-Service
604 Processor System-On-A-Chips. These parts include a number
605 of integrated peripherals, interfaces and DSPs in addition to
606 a variety of MIPS cores.
607
608config RALINK
609 bool "Ralink based machines"
610 select CEVT_R4K
611 select CSRC_R4K
612 select BOOT_RAW
613 select DMA_NONCOHERENT
614 select IRQ_MIPS_CPU
615 select USE_OF
616 select SYS_HAS_CPU_MIPS32_R1
617 select SYS_HAS_CPU_MIPS32_R2
618 select SYS_SUPPORTS_32BIT_KERNEL
619 select SYS_SUPPORTS_LITTLE_ENDIAN
620 select SYS_SUPPORTS_MIPS16
621 select SYS_HAS_EARLY_PRINTK
622 select CLKDEV_LOOKUP
623 select ARCH_HAS_RESET_CONTROLLER
624 select RESET_CONTROLLER
625
626config SGI_IP22
627 bool "SGI IP22 (Indy/Indigo2)"
628 select FW_ARC
629 select FW_ARC32
630 select ARCH_MIGHT_HAVE_PC_SERIO
631 select BOOT_ELF32
632 select CEVT_R4K
633 select CSRC_R4K
634 select DEFAULT_SGI_PARTITION
635 select DMA_NONCOHERENT
636 select HW_HAS_EISA
637 select I8253
638 select I8259
639 select IP22_CPU_SCACHE
640 select IRQ_MIPS_CPU
641 select GENERIC_ISA_DMA_SUPPORT_BROKEN
642 select SGI_HAS_I8042
643 select SGI_HAS_INDYDOG
644 select SGI_HAS_HAL2
645 select SGI_HAS_SEEQ
646 select SGI_HAS_WD93
647 select SGI_HAS_ZILOG
648 select SWAP_IO_SPACE
649 select SYS_HAS_CPU_R4X00
650 select SYS_HAS_CPU_R5000
651 #
652 # Disable EARLY_PRINTK for now since it leads to overwritten prom
653 # memory during early boot on some machines.
654 #
655 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
656 # for a more details discussion
657 #
658 # select SYS_HAS_EARLY_PRINTK
659 select SYS_SUPPORTS_32BIT_KERNEL
660 select SYS_SUPPORTS_64BIT_KERNEL
661 select SYS_SUPPORTS_BIG_ENDIAN
662 select MIPS_L1_CACHE_SHIFT_7
663 help
664 This are the SGI Indy, Challenge S and Indigo2, as well as certain
665 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
666 that runs on these, say Y here.
667
668config SGI_IP27
669 bool "SGI IP27 (Origin200/2000)"
670 select ARCH_HAS_PHYS_TO_DMA
671 select FW_ARC
672 select FW_ARC64
673 select BOOT_ELF64
674 select DEFAULT_SGI_PARTITION
675 select SYS_HAS_EARLY_PRINTK
676 select HW_HAS_PCI
677 select NR_CPUS_DEFAULT_64
678 select SYS_HAS_CPU_R10000
679 select SYS_SUPPORTS_64BIT_KERNEL
680 select SYS_SUPPORTS_BIG_ENDIAN
681 select SYS_SUPPORTS_NUMA
682 select SYS_SUPPORTS_SMP
683 select MIPS_L1_CACHE_SHIFT_7
684 help
685 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
686 workstations. To compile a Linux kernel that runs on these, say Y
687 here.
688
689config SGI_IP28
690 bool "SGI IP28 (Indigo2 R10k)"
691 select FW_ARC
692 select FW_ARC64
693 select ARCH_MIGHT_HAVE_PC_SERIO
694 select BOOT_ELF64
695 select CEVT_R4K
696 select CSRC_R4K
697 select DEFAULT_SGI_PARTITION
698 select DMA_NONCOHERENT
699 select GENERIC_ISA_DMA_SUPPORT_BROKEN
700 select IRQ_MIPS_CPU
701 select HW_HAS_EISA
702 select I8253
703 select I8259
704 select SGI_HAS_I8042
705 select SGI_HAS_INDYDOG
706 select SGI_HAS_HAL2
707 select SGI_HAS_SEEQ
708 select SGI_HAS_WD93
709 select SGI_HAS_ZILOG
710 select SWAP_IO_SPACE
711 select SYS_HAS_CPU_R10000
712 #
713 # Disable EARLY_PRINTK for now since it leads to overwritten prom
714 # memory during early boot on some machines.
715 #
716 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
717 # for a more details discussion
718 #
719 # select SYS_HAS_EARLY_PRINTK
720 select SYS_SUPPORTS_64BIT_KERNEL
721 select SYS_SUPPORTS_BIG_ENDIAN
722 select MIPS_L1_CACHE_SHIFT_7
723 help
724 This is the SGI Indigo2 with R10000 processor. To compile a Linux
725 kernel that runs on these, say Y here.
726
727config SGI_IP32
728 bool "SGI IP32 (O2)"
729 select ARCH_HAS_PHYS_TO_DMA
730 select FW_ARC
731 select FW_ARC32
732 select BOOT_ELF32
733 select CEVT_R4K
734 select CSRC_R4K
735 select DMA_NONCOHERENT
736 select HW_HAS_PCI
737 select IRQ_MIPS_CPU
738 select R5000_CPU_SCACHE
739 select RM7000_CPU_SCACHE
740 select SYS_HAS_CPU_R5000
741 select SYS_HAS_CPU_R10000 if BROKEN
742 select SYS_HAS_CPU_RM7000
743 select SYS_HAS_CPU_NEVADA
744 select SYS_SUPPORTS_64BIT_KERNEL
745 select SYS_SUPPORTS_BIG_ENDIAN
746 help
747 If you want this kernel to run on SGI O2 workstation, say Y here.
748
749config SIBYTE_CRHINE
750 bool "Sibyte BCM91120C-CRhine"
751 select BOOT_ELF32
752 select SIBYTE_BCM1120
753 select SWAP_IO_SPACE
754 select SYS_HAS_CPU_SB1
755 select SYS_SUPPORTS_BIG_ENDIAN
756 select SYS_SUPPORTS_LITTLE_ENDIAN
757
758config SIBYTE_CARMEL
759 bool "Sibyte BCM91120x-Carmel"
760 select BOOT_ELF32
761 select SIBYTE_BCM1120
762 select SWAP_IO_SPACE
763 select SYS_HAS_CPU_SB1
764 select SYS_SUPPORTS_BIG_ENDIAN
765 select SYS_SUPPORTS_LITTLE_ENDIAN
766
767config SIBYTE_CRHONE
768 bool "Sibyte BCM91125C-CRhone"
769 select BOOT_ELF32
770 select SIBYTE_BCM1125
771 select SWAP_IO_SPACE
772 select SYS_HAS_CPU_SB1
773 select SYS_SUPPORTS_BIG_ENDIAN
774 select SYS_SUPPORTS_HIGHMEM
775 select SYS_SUPPORTS_LITTLE_ENDIAN
776
777config SIBYTE_RHONE
778 bool "Sibyte BCM91125E-Rhone"
779 select BOOT_ELF32
780 select SIBYTE_BCM1125H
781 select SWAP_IO_SPACE
782 select SYS_HAS_CPU_SB1
783 select SYS_SUPPORTS_BIG_ENDIAN
784 select SYS_SUPPORTS_LITTLE_ENDIAN
785
786config SIBYTE_SWARM
787 bool "Sibyte BCM91250A-SWARM"
788 select BOOT_ELF32
789 select HAVE_PATA_PLATFORM
790 select SIBYTE_SB1250
791 select SWAP_IO_SPACE
792 select SYS_HAS_CPU_SB1
793 select SYS_SUPPORTS_BIG_ENDIAN
794 select SYS_SUPPORTS_HIGHMEM
795 select SYS_SUPPORTS_LITTLE_ENDIAN
796 select ZONE_DMA32 if 64BIT
797 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
798
799config SIBYTE_LITTLESUR
800 bool "Sibyte BCM91250C2-LittleSur"
801 select BOOT_ELF32
802 select HAVE_PATA_PLATFORM
803 select SIBYTE_SB1250
804 select SWAP_IO_SPACE
805 select SYS_HAS_CPU_SB1
806 select SYS_SUPPORTS_BIG_ENDIAN
807 select SYS_SUPPORTS_HIGHMEM
808 select SYS_SUPPORTS_LITTLE_ENDIAN
809 select ZONE_DMA32 if 64BIT
810
811config SIBYTE_SENTOSA
812 bool "Sibyte BCM91250E-Sentosa"
813 select BOOT_ELF32
814 select SIBYTE_SB1250
815 select SWAP_IO_SPACE
816 select SYS_HAS_CPU_SB1
817 select SYS_SUPPORTS_BIG_ENDIAN
818 select SYS_SUPPORTS_LITTLE_ENDIAN
819 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
820
821config SIBYTE_BIGSUR
822 bool "Sibyte BCM91480B-BigSur"
823 select BOOT_ELF32
824 select NR_CPUS_DEFAULT_4
825 select SIBYTE_BCM1x80
826 select SWAP_IO_SPACE
827 select SYS_HAS_CPU_SB1
828 select SYS_SUPPORTS_BIG_ENDIAN
829 select SYS_SUPPORTS_HIGHMEM
830 select SYS_SUPPORTS_LITTLE_ENDIAN
831 select ZONE_DMA32 if 64BIT
832 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
833
834config SNI_RM
835 bool "SNI RM200/300/400"
836 select FW_ARC if CPU_LITTLE_ENDIAN
837 select FW_ARC32 if CPU_LITTLE_ENDIAN
838 select FW_SNIPROM if CPU_BIG_ENDIAN
839 select ARCH_MAY_HAVE_PC_FDC
840 select ARCH_MIGHT_HAVE_PC_PARPORT
841 select ARCH_MIGHT_HAVE_PC_SERIO
842 select BOOT_ELF32
843 select CEVT_R4K
844 select CSRC_R4K
845 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
846 select DMA_NONCOHERENT
847 select GENERIC_ISA_DMA
848 select HAVE_PCSPKR_PLATFORM
849 select HW_HAS_EISA
850 select HW_HAS_PCI
851 select IRQ_MIPS_CPU
852 select I8253
853 select I8259
854 select ISA
855 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
856 select SYS_HAS_CPU_R4X00
857 select SYS_HAS_CPU_R5000
858 select SYS_HAS_CPU_R10000
859 select R5000_CPU_SCACHE
860 select SYS_HAS_EARLY_PRINTK
861 select SYS_SUPPORTS_32BIT_KERNEL
862 select SYS_SUPPORTS_64BIT_KERNEL
863 select SYS_SUPPORTS_BIG_ENDIAN
864 select SYS_SUPPORTS_HIGHMEM
865 select SYS_SUPPORTS_LITTLE_ENDIAN
866 help
867 The SNI RM200/300/400 are MIPS-based machines manufactured by
868 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
869 Technology and now in turn merged with Fujitsu. Say Y here to
870 support this machine type.
871
872config MACH_TX39XX
873 bool "Toshiba TX39 series based machines"
874
875config MACH_TX49XX
876 bool "Toshiba TX49 series based machines"
877
878config MIKROTIK_RB532
879 bool "Mikrotik RB532 boards"
880 select CEVT_R4K
881 select CSRC_R4K
882 select DMA_NONCOHERENT
883 select HW_HAS_PCI
884 select IRQ_MIPS_CPU
885 select SYS_HAS_CPU_MIPS32_R1
886 select SYS_SUPPORTS_32BIT_KERNEL
887 select SYS_SUPPORTS_LITTLE_ENDIAN
888 select SWAP_IO_SPACE
889 select BOOT_RAW
890 select GPIOLIB
891 select MIPS_L1_CACHE_SHIFT_4
892 help
893 Support the Mikrotik(tm) RouterBoard 532 series,
894 based on the IDT RC32434 SoC.
895
896config CAVIUM_OCTEON_SOC
897 bool "Cavium Networks Octeon SoC based boards"
898 select CEVT_R4K
899 select ARCH_HAS_PHYS_TO_DMA
900 select HAS_RAPIDIO
901 select PHYS_ADDR_T_64BIT
902 select SYS_SUPPORTS_64BIT_KERNEL
903 select SYS_SUPPORTS_BIG_ENDIAN
904 select EDAC_SUPPORT
905 select EDAC_ATOMIC_SCRUB
906 select SYS_SUPPORTS_LITTLE_ENDIAN
907 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
908 select SYS_HAS_EARLY_PRINTK
909 select SYS_HAS_CPU_CAVIUM_OCTEON
910 select HW_HAS_PCI
911 select ZONE_DMA32
912 select HOLES_IN_ZONE
913 select GPIOLIB
914 select LIBFDT
915 select USE_OF
916 select ARCH_SPARSEMEM_ENABLE
917 select SYS_SUPPORTS_SMP
918 select NR_CPUS_DEFAULT_64
919 select MIPS_NR_CPU_NR_MAP_1024
920 select BUILTIN_DTB
921 select MTD_COMPLEX_MAPPINGS
922 select SWIOTLB
923 select SYS_SUPPORTS_RELOCATABLE
924 help
925 This option supports all of the Octeon reference boards from Cavium
926 Networks. It builds a kernel that dynamically determines the Octeon
927 CPU type and supports all known board reference implementations.
928 Some of the supported boards are:
929 EBT3000
930 EBH3000
931 EBH3100
932 Thunder
933 Kodama
934 Hikari
935 Say Y here for most Octeon reference boards.
936
937config NLM_XLR_BOARD
938 bool "Netlogic XLR/XLS based systems"
939 select BOOT_ELF32
940 select NLM_COMMON
941 select SYS_HAS_CPU_XLR
942 select SYS_SUPPORTS_SMP
943 select HW_HAS_PCI
944 select SWAP_IO_SPACE
945 select SYS_SUPPORTS_32BIT_KERNEL
946 select SYS_SUPPORTS_64BIT_KERNEL
947 select PHYS_ADDR_T_64BIT
948 select SYS_SUPPORTS_BIG_ENDIAN
949 select SYS_SUPPORTS_HIGHMEM
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 SYS_SUPPORTS_ZBOOT
958 select SYS_SUPPORTS_ZBOOT_UART16550
959 help
960 Support for systems based on Netlogic XLR and XLS processors.
961 Say Y here if you have a XLR or XLS based board.
962
963config NLM_XLP_BOARD
964 bool "Netlogic XLP based systems"
965 select BOOT_ELF32
966 select NLM_COMMON
967 select SYS_HAS_CPU_XLP
968 select SYS_SUPPORTS_SMP
969 select HW_HAS_PCI
970 select SYS_SUPPORTS_32BIT_KERNEL
971 select SYS_SUPPORTS_64BIT_KERNEL
972 select PHYS_ADDR_T_64BIT
973 select GPIOLIB
974 select SYS_SUPPORTS_BIG_ENDIAN
975 select SYS_SUPPORTS_LITTLE_ENDIAN
976 select SYS_SUPPORTS_HIGHMEM
977 select NR_CPUS_DEFAULT_32
978 select CEVT_R4K
979 select CSRC_R4K
980 select IRQ_MIPS_CPU
981 select ZONE_DMA32 if 64BIT
982 select SYNC_R4K
983 select SYS_HAS_EARLY_PRINTK
984 select USE_OF
985 select SYS_SUPPORTS_ZBOOT
986 select SYS_SUPPORTS_ZBOOT_UART16550
987 help
988 This board is based on Netlogic XLP Processor.
989 Say Y here if you have a XLP based board.
990
991config MIPS_PARAVIRT
992 bool "Para-Virtualized guest system"
993 select CEVT_R4K
994 select CSRC_R4K
995 select SYS_SUPPORTS_64BIT_KERNEL
996 select SYS_SUPPORTS_32BIT_KERNEL
997 select SYS_SUPPORTS_BIG_ENDIAN
998 select SYS_SUPPORTS_SMP
999 select NR_CPUS_DEFAULT_4
1000 select SYS_HAS_EARLY_PRINTK
1001 select SYS_HAS_CPU_MIPS32_R2
1002 select SYS_HAS_CPU_MIPS64_R2
1003 select SYS_HAS_CPU_CAVIUM_OCTEON
1004 select HW_HAS_PCI
1005 select SWAP_IO_SPACE
1006 help
1007 This option supports guest running under ????
1008
1009endchoice
1010
1011source "arch/mips/alchemy/Kconfig"
1012source "arch/mips/ath25/Kconfig"
1013source "arch/mips/ath79/Kconfig"
1014source "arch/mips/bcm47xx/Kconfig"
1015source "arch/mips/bcm63xx/Kconfig"
1016source "arch/mips/bmips/Kconfig"
1017source "arch/mips/generic/Kconfig"
1018source "arch/mips/jazz/Kconfig"
1019source "arch/mips/jz4740/Kconfig"
1020source "arch/mips/lantiq/Kconfig"
1021source "arch/mips/lasat/Kconfig"
1022source "arch/mips/pic32/Kconfig"
1023source "arch/mips/pistachio/Kconfig"
1024source "arch/mips/pmcs-msp71xx/Kconfig"
1025source "arch/mips/ralink/Kconfig"
1026source "arch/mips/sgi-ip27/Kconfig"
1027source "arch/mips/sibyte/Kconfig"
1028source "arch/mips/txx9/Kconfig"
1029source "arch/mips/vr41xx/Kconfig"
1030source "arch/mips/cavium-octeon/Kconfig"
1031source "arch/mips/loongson32/Kconfig"
1032source "arch/mips/loongson64/Kconfig"
1033source "arch/mips/netlogic/Kconfig"
1034source "arch/mips/paravirt/Kconfig"
1035
1036endmenu
1037
1038config RWSEM_GENERIC_SPINLOCK
1039 bool
1040 default y
1041
1042config RWSEM_XCHGADD_ALGORITHM
1043 bool
1044
1045config GENERIC_HWEIGHT
1046 bool
1047 default y
1048
1049config GENERIC_CALIBRATE_DELAY
1050 bool
1051 default y
1052
1053config SCHED_OMIT_FRAME_POINTER
1054 bool
1055 default y
1056
1057#
1058# Select some configuration options automatically based on user selections.
1059#
1060config FW_ARC
1061 bool
1062
1063config ARCH_MAY_HAVE_PC_FDC
1064 bool
1065
1066config BOOT_RAW
1067 bool
1068
1069config CEVT_BCM1480
1070 bool
1071
1072config CEVT_DS1287
1073 bool
1074
1075config CEVT_GT641XX
1076 bool
1077
1078config CEVT_R4K
1079 bool
1080
1081config CEVT_SB1250
1082 bool
1083
1084config CEVT_TXX9
1085 bool
1086
1087config CSRC_BCM1480
1088 bool
1089
1090config CSRC_IOASIC
1091 bool
1092
1093config CSRC_R4K
1094 bool
1095
1096config CSRC_SB1250
1097 bool
1098
1099config MIPS_CLOCK_VSYSCALL
1100 def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1101
1102config GPIO_TXX9
1103 select GPIOLIB
1104 bool
1105
1106config FW_CFE
1107 bool
1108
1109config ARCH_SUPPORTS_UPROBES
1110 bool
1111
1112config DMA_MAYBE_COHERENT
1113 select ARCH_HAS_DMA_COHERENCE_H
1114 select DMA_NONCOHERENT
1115 bool
1116
1117config DMA_PERDEV_COHERENT
1118 bool
1119 select DMA_NONCOHERENT
1120
1121config DMA_NONCOHERENT
1122 bool
1123 select ARCH_HAS_DMA_MMAP_PGPROT
1124 select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1125 select ARCH_HAS_SYNC_DMA_FOR_CPU
1126 select NEED_DMA_MAP_STATE
1127 select ARCH_HAS_DMA_COHERENT_TO_PFN
1128 select DMA_NONCOHERENT_CACHE_SYNC
1129
1130config SYS_HAS_EARLY_PRINTK
1131 bool
1132
1133config SYS_SUPPORTS_HOTPLUG_CPU
1134 bool
1135
1136config MIPS_BONITO64
1137 bool
1138
1139config MIPS_MSC
1140 bool
1141
1142config MIPS_NILE4
1143 bool
1144
1145config SYNC_R4K
1146 bool
1147
1148config MIPS_MACHINE
1149 def_bool n
1150
1151config NO_IOPORT_MAP
1152 def_bool n
1153
1154config GENERIC_CSUM
1155 bool
1156 default y if !CPU_HAS_LOAD_STORE_LR
1157
1158config GENERIC_ISA_DMA
1159 bool
1160 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1161 select ISA_DMA_API
1162
1163config GENERIC_ISA_DMA_SUPPORT_BROKEN
1164 bool
1165 select GENERIC_ISA_DMA
1166
1167config ISA_DMA_API
1168 bool
1169
1170config HOLES_IN_ZONE
1171 bool
1172
1173config SYS_SUPPORTS_RELOCATABLE
1174 bool
1175 help
1176 Selected if the platform supports relocating the kernel.
1177 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1178 to allow access to command line and entropy sources.
1179
1180config MIPS_CBPF_JIT
1181 def_bool y
1182 depends on BPF_JIT && HAVE_CBPF_JIT
1183
1184config MIPS_EBPF_JIT
1185 def_bool y
1186 depends on BPF_JIT && HAVE_EBPF_JIT
1187
1188
1189#
1190# Endianness selection. Sufficiently obscure so many users don't know what to
1191# answer,so we try hard to limit the available choices. Also the use of a
1192# choice statement should be more obvious to the user.
1193#
1194choice
1195 prompt "Endianness selection"
1196 help
1197 Some MIPS machines can be configured for either little or big endian
1198 byte order. These modes require different kernels and a different
1199 Linux distribution. In general there is one preferred byteorder for a
1200 particular system but some systems are just as commonly used in the
1201 one or the other endianness.
1202
1203config CPU_BIG_ENDIAN
1204 bool "Big endian"
1205 depends on SYS_SUPPORTS_BIG_ENDIAN
1206
1207config CPU_LITTLE_ENDIAN
1208 bool "Little endian"
1209 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1210
1211endchoice
1212
1213config EXPORT_UASM
1214 bool
1215
1216config SYS_SUPPORTS_APM_EMULATION
1217 bool
1218
1219config SYS_SUPPORTS_BIG_ENDIAN
1220 bool
1221
1222config SYS_SUPPORTS_LITTLE_ENDIAN
1223 bool
1224
1225config SYS_SUPPORTS_HUGETLBFS
1226 bool
1227 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1228 default y
1229
1230config MIPS_HUGE_TLB_SUPPORT
1231 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1232
1233config IRQ_CPU_RM7K
1234 bool
1235
1236config IRQ_MSP_SLP
1237 bool
1238
1239config IRQ_MSP_CIC
1240 bool
1241
1242config IRQ_TXX9
1243 bool
1244
1245config IRQ_GT641XX
1246 bool
1247
1248config PCI_GT64XXX_PCI0
1249 bool
1250
1251config NO_EXCEPT_FILL
1252 bool
1253
1254config SOC_EMMA2RH
1255 bool
1256 select CEVT_R4K
1257 select CSRC_R4K
1258 select DMA_NONCOHERENT
1259 select IRQ_MIPS_CPU
1260 select SWAP_IO_SPACE
1261 select SYS_HAS_CPU_R5500
1262 select SYS_SUPPORTS_32BIT_KERNEL
1263 select SYS_SUPPORTS_64BIT_KERNEL
1264 select SYS_SUPPORTS_BIG_ENDIAN
1265
1266config SOC_PNX833X
1267 bool
1268 select CEVT_R4K
1269 select CSRC_R4K
1270 select IRQ_MIPS_CPU
1271 select DMA_NONCOHERENT
1272 select SYS_HAS_CPU_MIPS32_R2
1273 select SYS_SUPPORTS_32BIT_KERNEL
1274 select SYS_SUPPORTS_LITTLE_ENDIAN
1275 select SYS_SUPPORTS_BIG_ENDIAN
1276 select SYS_SUPPORTS_MIPS16
1277 select CPU_MIPSR2_IRQ_VI
1278
1279config SOC_PNX8335
1280 bool
1281 select SOC_PNX833X
1282
1283config MIPS_SPRAM
1284 bool
1285
1286config SWAP_IO_SPACE
1287 bool
1288
1289config SGI_HAS_INDYDOG
1290 bool
1291
1292config SGI_HAS_HAL2
1293 bool
1294
1295config SGI_HAS_SEEQ
1296 bool
1297
1298config SGI_HAS_WD93
1299 bool
1300
1301config SGI_HAS_ZILOG
1302 bool
1303
1304config SGI_HAS_I8042
1305 bool
1306
1307config DEFAULT_SGI_PARTITION
1308 bool
1309
1310config FW_ARC32
1311 bool
1312
1313config FW_SNIPROM
1314 bool
1315
1316config BOOT_ELF32
1317 bool
1318
1319config MIPS_L1_CACHE_SHIFT_4
1320 bool
1321
1322config MIPS_L1_CACHE_SHIFT_5
1323 bool
1324
1325config MIPS_L1_CACHE_SHIFT_6
1326 bool
1327
1328config MIPS_L1_CACHE_SHIFT_7
1329 bool
1330
1331config MIPS_L1_CACHE_SHIFT
1332 int
1333 default "7" if MIPS_L1_CACHE_SHIFT_7
1334 default "6" if MIPS_L1_CACHE_SHIFT_6
1335 default "5" if MIPS_L1_CACHE_SHIFT_5
1336 default "4" if MIPS_L1_CACHE_SHIFT_4
1337 default "5"
1338
1339config HAVE_STD_PC_SERIAL_PORT
1340 bool
1341
1342config ARC_CONSOLE
1343 bool "ARC console support"
1344 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1345
1346config ARC_MEMORY
1347 bool
1348 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1349 default y
1350
1351config ARC_PROMLIB
1352 bool
1353 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1354 default y
1355
1356config FW_ARC64
1357 bool
1358
1359config BOOT_ELF64
1360 bool
1361
1362menu "CPU selection"
1363
1364choice
1365 prompt "CPU type"
1366 default CPU_R4X00
1367
1368config CPU_LOONGSON3
1369 bool "Loongson 3 CPU"
1370 depends on SYS_HAS_CPU_LOONGSON3
1371 select ARCH_HAS_PHYS_TO_DMA
1372 select CPU_SUPPORTS_64BIT_KERNEL
1373 select CPU_SUPPORTS_HIGHMEM
1374 select CPU_SUPPORTS_HUGEPAGES
1375 select CPU_HAS_LOAD_STORE_LR
1376 select WEAK_ORDERING
1377 select WEAK_REORDERING_BEYOND_LLSC
1378 select MIPS_PGD_C0_CONTEXT
1379 select MIPS_L1_CACHE_SHIFT_6
1380 select GPIOLIB
1381 select SWIOTLB
1382 help
1383 The Loongson 3 processor implements the MIPS64R2 instruction
1384 set with many extensions.
1385
1386config LOONGSON3_ENHANCEMENT
1387 bool "New Loongson 3 CPU Enhancements"
1388 default n
1389 select CPU_MIPSR2
1390 select CPU_HAS_PREFETCH
1391 depends on CPU_LOONGSON3
1392 help
1393 New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A
1394 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1395 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User
1396 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1397 Fast TLB refill support, etc.
1398
1399 This option enable those enhancements which are not probed at run
1400 time. If you want a generic kernel to run on all Loongson 3 machines,
1401 please say 'N' here. If you want a high-performance kernel to run on
1402 new Loongson 3 machines only, please say 'Y' here.
1403
1404config CPU_LOONGSON2E
1405 bool "Loongson 2E"
1406 depends on SYS_HAS_CPU_LOONGSON2E
1407 select CPU_LOONGSON2
1408 help
1409 The Loongson 2E processor implements the MIPS III instruction set
1410 with many extensions.
1411
1412 It has an internal FPGA northbridge, which is compatible to
1413 bonito64.
1414
1415config CPU_LOONGSON2F
1416 bool "Loongson 2F"
1417 depends on SYS_HAS_CPU_LOONGSON2F
1418 select CPU_LOONGSON2
1419 select GPIOLIB
1420 help
1421 The Loongson 2F processor implements the MIPS III instruction set
1422 with many extensions.
1423
1424 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1425 have a similar programming interface with FPGA northbridge used in
1426 Loongson2E.
1427
1428config CPU_LOONGSON1B
1429 bool "Loongson 1B"
1430 depends on SYS_HAS_CPU_LOONGSON1B
1431 select CPU_LOONGSON1
1432 select LEDS_GPIO_REGISTER
1433 help
1434 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1435 Release 1 instruction set and part of the MIPS32 Release 2
1436 instruction set.
1437
1438config CPU_LOONGSON1C
1439 bool "Loongson 1C"
1440 depends on SYS_HAS_CPU_LOONGSON1C
1441 select CPU_LOONGSON1
1442 select LEDS_GPIO_REGISTER
1443 help
1444 The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1445 Release 1 instruction set and part of the MIPS32 Release 2
1446 instruction set.
1447
1448config CPU_MIPS32_R1
1449 bool "MIPS32 Release 1"
1450 depends on SYS_HAS_CPU_MIPS32_R1
1451 select CPU_HAS_PREFETCH
1452 select CPU_HAS_LOAD_STORE_LR
1453 select CPU_SUPPORTS_32BIT_KERNEL
1454 select CPU_SUPPORTS_HIGHMEM
1455 help
1456 Choose this option to build a kernel for release 1 or later of the
1457 MIPS32 architecture. Most modern embedded systems with a 32-bit
1458 MIPS processor are based on a MIPS32 processor. If you know the
1459 specific type of processor in your system, choose those that one
1460 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1461 Release 2 of the MIPS32 architecture is available since several
1462 years so chances are you even have a MIPS32 Release 2 processor
1463 in which case you should choose CPU_MIPS32_R2 instead for better
1464 performance.
1465
1466config CPU_MIPS32_R2
1467 bool "MIPS32 Release 2"
1468 depends on SYS_HAS_CPU_MIPS32_R2
1469 select CPU_HAS_PREFETCH
1470 select CPU_HAS_LOAD_STORE_LR
1471 select CPU_SUPPORTS_32BIT_KERNEL
1472 select CPU_SUPPORTS_HIGHMEM
1473 select CPU_SUPPORTS_MSA
1474 select HAVE_KVM
1475 help
1476 Choose this option to build a kernel for release 2 or later of the
1477 MIPS32 architecture. Most modern embedded systems with a 32-bit
1478 MIPS processor are based on a MIPS32 processor. If you know the
1479 specific type of processor in your system, choose those that one
1480 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1481
1482config CPU_MIPS32_R6
1483 bool "MIPS32 Release 6"
1484 depends on SYS_HAS_CPU_MIPS32_R6
1485 select CPU_HAS_PREFETCH
1486 select CPU_SUPPORTS_32BIT_KERNEL
1487 select CPU_SUPPORTS_HIGHMEM
1488 select CPU_SUPPORTS_MSA
1489 select HAVE_KVM
1490 select MIPS_O32_FP64_SUPPORT
1491 help
1492 Choose this option to build a kernel for release 6 or later of the
1493 MIPS32 architecture. New MIPS processors, starting with the Warrior
1494 family, are based on a MIPS32r6 processor. If you own an older
1495 processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1496
1497config CPU_MIPS64_R1
1498 bool "MIPS64 Release 1"
1499 depends on SYS_HAS_CPU_MIPS64_R1
1500 select CPU_HAS_PREFETCH
1501 select CPU_HAS_LOAD_STORE_LR
1502 select CPU_SUPPORTS_32BIT_KERNEL
1503 select CPU_SUPPORTS_64BIT_KERNEL
1504 select CPU_SUPPORTS_HIGHMEM
1505 select CPU_SUPPORTS_HUGEPAGES
1506 help
1507 Choose this option to build a kernel for release 1 or later of the
1508 MIPS64 architecture. Many modern embedded systems with a 64-bit
1509 MIPS processor are based on a MIPS64 processor. If you know the
1510 specific type of processor in your system, choose those that one
1511 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1512 Release 2 of the MIPS64 architecture is available since several
1513 years so chances are you even have a MIPS64 Release 2 processor
1514 in which case you should choose CPU_MIPS64_R2 instead for better
1515 performance.
1516
1517config CPU_MIPS64_R2
1518 bool "MIPS64 Release 2"
1519 depends on SYS_HAS_CPU_MIPS64_R2
1520 select CPU_HAS_PREFETCH
1521 select CPU_HAS_LOAD_STORE_LR
1522 select CPU_SUPPORTS_32BIT_KERNEL
1523 select CPU_SUPPORTS_64BIT_KERNEL
1524 select CPU_SUPPORTS_HIGHMEM
1525 select CPU_SUPPORTS_HUGEPAGES
1526 select CPU_SUPPORTS_MSA
1527 select HAVE_KVM
1528 help
1529 Choose this option to build a kernel for release 2 or later of the
1530 MIPS64 architecture. Many modern embedded systems with a 64-bit
1531 MIPS processor are based on a MIPS64 processor. If you know the
1532 specific type of processor in your system, choose those that one
1533 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1534
1535config CPU_MIPS64_R6
1536 bool "MIPS64 Release 6"
1537 depends on SYS_HAS_CPU_MIPS64_R6
1538 select CPU_HAS_PREFETCH
1539 select CPU_SUPPORTS_32BIT_KERNEL
1540 select CPU_SUPPORTS_64BIT_KERNEL
1541 select CPU_SUPPORTS_HIGHMEM
1542 select CPU_SUPPORTS_MSA
1543 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1544 select HAVE_KVM
1545 help
1546 Choose this option to build a kernel for release 6 or later of the
1547 MIPS64 architecture. New MIPS processors, starting with the Warrior
1548 family, are based on a MIPS64r6 processor. If you own an older
1549 processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1550
1551config CPU_R3000
1552 bool "R3000"
1553 depends on SYS_HAS_CPU_R3000
1554 select CPU_HAS_WB
1555 select CPU_HAS_LOAD_STORE_LR
1556 select CPU_SUPPORTS_32BIT_KERNEL
1557 select CPU_SUPPORTS_HIGHMEM
1558 help
1559 Please make sure to pick the right CPU type. Linux/MIPS is not
1560 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1561 *not* work on R4000 machines and vice versa. However, since most
1562 of the supported machines have an R4000 (or similar) CPU, R4x00
1563 might be a safe bet. If the resulting kernel does not work,
1564 try to recompile with R3000.
1565
1566config CPU_TX39XX
1567 bool "R39XX"
1568 depends on SYS_HAS_CPU_TX39XX
1569 select CPU_SUPPORTS_32BIT_KERNEL
1570 select CPU_HAS_LOAD_STORE_LR
1571
1572config CPU_VR41XX
1573 bool "R41xx"
1574 depends on SYS_HAS_CPU_VR41XX
1575 select CPU_SUPPORTS_32BIT_KERNEL
1576 select CPU_SUPPORTS_64BIT_KERNEL
1577 select CPU_HAS_LOAD_STORE_LR
1578 help
1579 The options selects support for the NEC VR4100 series of processors.
1580 Only choose this option if you have one of these processors as a
1581 kernel built with this option will not run on any other type of
1582 processor or vice versa.
1583
1584config CPU_R4300
1585 bool "R4300"
1586 depends on SYS_HAS_CPU_R4300
1587 select CPU_SUPPORTS_32BIT_KERNEL
1588 select CPU_SUPPORTS_64BIT_KERNEL
1589 select CPU_HAS_LOAD_STORE_LR
1590 help
1591 MIPS Technologies R4300-series processors.
1592
1593config CPU_R4X00
1594 bool "R4x00"
1595 depends on SYS_HAS_CPU_R4X00
1596 select CPU_SUPPORTS_32BIT_KERNEL
1597 select CPU_SUPPORTS_64BIT_KERNEL
1598 select CPU_SUPPORTS_HUGEPAGES
1599 select CPU_HAS_LOAD_STORE_LR
1600 help
1601 MIPS Technologies R4000-series processors other than 4300, including
1602 the R4000, R4400, R4600, and 4700.
1603
1604config CPU_TX49XX
1605 bool "R49XX"
1606 depends on SYS_HAS_CPU_TX49XX
1607 select CPU_HAS_PREFETCH
1608 select CPU_HAS_LOAD_STORE_LR
1609 select CPU_SUPPORTS_32BIT_KERNEL
1610 select CPU_SUPPORTS_64BIT_KERNEL
1611 select CPU_SUPPORTS_HUGEPAGES
1612
1613config CPU_R5000
1614 bool "R5000"
1615 depends on SYS_HAS_CPU_R5000
1616 select CPU_SUPPORTS_32BIT_KERNEL
1617 select CPU_SUPPORTS_64BIT_KERNEL
1618 select CPU_SUPPORTS_HUGEPAGES
1619 select CPU_HAS_LOAD_STORE_LR
1620 help
1621 MIPS Technologies R5000-series processors other than the Nevada.
1622
1623config CPU_R5432
1624 bool "R5432"
1625 depends on SYS_HAS_CPU_R5432
1626 select CPU_SUPPORTS_32BIT_KERNEL
1627 select CPU_SUPPORTS_64BIT_KERNEL
1628 select CPU_SUPPORTS_HUGEPAGES
1629 select CPU_HAS_LOAD_STORE_LR
1630
1631config CPU_R5500
1632 bool "R5500"
1633 depends on SYS_HAS_CPU_R5500
1634 select CPU_SUPPORTS_32BIT_KERNEL
1635 select CPU_SUPPORTS_64BIT_KERNEL
1636 select CPU_SUPPORTS_HUGEPAGES
1637 select CPU_HAS_LOAD_STORE_LR
1638 help
1639 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1640 instruction set.
1641
1642config CPU_NEVADA
1643 bool "RM52xx"
1644 depends on SYS_HAS_CPU_NEVADA
1645 select CPU_SUPPORTS_32BIT_KERNEL
1646 select CPU_SUPPORTS_64BIT_KERNEL
1647 select CPU_SUPPORTS_HUGEPAGES
1648 select CPU_HAS_LOAD_STORE_LR
1649 help
1650 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1651
1652config CPU_R8000
1653 bool "R8000"
1654 depends on SYS_HAS_CPU_R8000
1655 select CPU_HAS_PREFETCH
1656 select CPU_HAS_LOAD_STORE_LR
1657 select CPU_SUPPORTS_64BIT_KERNEL
1658 help
1659 MIPS Technologies R8000 processors. Note these processors are
1660 uncommon and the support for them is incomplete.
1661
1662config CPU_R10000
1663 bool "R10000"
1664 depends on SYS_HAS_CPU_R10000
1665 select CPU_HAS_PREFETCH
1666 select CPU_HAS_LOAD_STORE_LR
1667 select CPU_SUPPORTS_32BIT_KERNEL
1668 select CPU_SUPPORTS_64BIT_KERNEL
1669 select CPU_SUPPORTS_HIGHMEM
1670 select CPU_SUPPORTS_HUGEPAGES
1671 help
1672 MIPS Technologies R10000-series processors.
1673
1674config CPU_RM7000
1675 bool "RM7000"
1676 depends on SYS_HAS_CPU_RM7000
1677 select CPU_HAS_PREFETCH
1678 select CPU_HAS_LOAD_STORE_LR
1679 select CPU_SUPPORTS_32BIT_KERNEL
1680 select CPU_SUPPORTS_64BIT_KERNEL
1681 select CPU_SUPPORTS_HIGHMEM
1682 select CPU_SUPPORTS_HUGEPAGES
1683
1684config CPU_SB1
1685 bool "SB1"
1686 depends on SYS_HAS_CPU_SB1
1687 select CPU_HAS_LOAD_STORE_LR
1688 select CPU_SUPPORTS_32BIT_KERNEL
1689 select CPU_SUPPORTS_64BIT_KERNEL
1690 select CPU_SUPPORTS_HIGHMEM
1691 select CPU_SUPPORTS_HUGEPAGES
1692 select WEAK_ORDERING
1693
1694config CPU_CAVIUM_OCTEON
1695 bool "Cavium Octeon processor"
1696 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1697 select CPU_HAS_PREFETCH
1698 select CPU_HAS_LOAD_STORE_LR
1699 select CPU_SUPPORTS_64BIT_KERNEL
1700 select WEAK_ORDERING
1701 select CPU_SUPPORTS_HIGHMEM
1702 select CPU_SUPPORTS_HUGEPAGES
1703 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1704 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1705 select MIPS_L1_CACHE_SHIFT_7
1706 select HAVE_KVM
1707 help
1708 The Cavium Octeon processor is a highly integrated chip containing
1709 many ethernet hardware widgets for networking tasks. The processor
1710 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1711 Full details can be found at http://www.caviumnetworks.com.
1712
1713config CPU_BMIPS
1714 bool "Broadcom BMIPS"
1715 depends on SYS_HAS_CPU_BMIPS
1716 select CPU_MIPS32
1717 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1718 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1719 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1720 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1721 select CPU_SUPPORTS_32BIT_KERNEL
1722 select DMA_NONCOHERENT
1723 select IRQ_MIPS_CPU
1724 select SWAP_IO_SPACE
1725 select WEAK_ORDERING
1726 select CPU_SUPPORTS_HIGHMEM
1727 select CPU_HAS_PREFETCH
1728 select CPU_HAS_LOAD_STORE_LR
1729 select CPU_SUPPORTS_CPUFREQ
1730 select MIPS_EXTERNAL_TIMER
1731 help
1732 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1733
1734config CPU_XLR
1735 bool "Netlogic XLR SoC"
1736 depends on SYS_HAS_CPU_XLR
1737 select CPU_HAS_LOAD_STORE_LR
1738 select CPU_SUPPORTS_32BIT_KERNEL
1739 select CPU_SUPPORTS_64BIT_KERNEL
1740 select CPU_SUPPORTS_HIGHMEM
1741 select CPU_SUPPORTS_HUGEPAGES
1742 select WEAK_ORDERING
1743 select WEAK_REORDERING_BEYOND_LLSC
1744 help
1745 Netlogic Microsystems XLR/XLS processors.
1746
1747config CPU_XLP
1748 bool "Netlogic XLP SoC"
1749 depends on SYS_HAS_CPU_XLP
1750 select CPU_SUPPORTS_32BIT_KERNEL
1751 select CPU_SUPPORTS_64BIT_KERNEL
1752 select CPU_SUPPORTS_HIGHMEM
1753 select WEAK_ORDERING
1754 select WEAK_REORDERING_BEYOND_LLSC
1755 select CPU_HAS_PREFETCH
1756 select CPU_HAS_LOAD_STORE_LR
1757 select CPU_MIPSR2
1758 select CPU_SUPPORTS_HUGEPAGES
1759 select MIPS_ASID_BITS_VARIABLE
1760 help
1761 Netlogic Microsystems XLP processors.
1762endchoice
1763
1764config CPU_MIPS32_3_5_FEATURES
1765 bool "MIPS32 Release 3.5 Features"
1766 depends on SYS_HAS_CPU_MIPS32_R3_5
1767 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1768 help
1769 Choose this option to build a kernel for release 2 or later of the
1770 MIPS32 architecture including features from the 3.5 release such as
1771 support for Enhanced Virtual Addressing (EVA).
1772
1773config CPU_MIPS32_3_5_EVA
1774 bool "Enhanced Virtual Addressing (EVA)"
1775 depends on CPU_MIPS32_3_5_FEATURES
1776 select EVA
1777 default y
1778 help
1779 Choose this option if you want to enable the Enhanced Virtual
1780 Addressing (EVA) on your MIPS32 core (such as proAptiv).
1781 One of its primary benefits is an increase in the maximum size
1782 of lowmem (up to 3GB). If unsure, say 'N' here.
1783
1784config CPU_MIPS32_R5_FEATURES
1785 bool "MIPS32 Release 5 Features"
1786 depends on SYS_HAS_CPU_MIPS32_R5
1787 depends on CPU_MIPS32_R2
1788 help
1789 Choose this option to build a kernel for release 2 or later of the
1790 MIPS32 architecture including features from release 5 such as
1791 support for Extended Physical Addressing (XPA).
1792
1793config CPU_MIPS32_R5_XPA
1794 bool "Extended Physical Addressing (XPA)"
1795 depends on CPU_MIPS32_R5_FEATURES
1796 depends on !EVA
1797 depends on !PAGE_SIZE_4KB
1798 depends on SYS_SUPPORTS_HIGHMEM
1799 select XPA
1800 select HIGHMEM
1801 select PHYS_ADDR_T_64BIT
1802 default n
1803 help
1804 Choose this option if you want to enable the Extended Physical
1805 Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1806 benefit is to increase physical addressing equal to or greater
1807 than 40 bits. Note that this has the side effect of turning on
1808 64-bit addressing which in turn makes the PTEs 64-bit in size.
1809 If unsure, say 'N' here.
1810
1811if CPU_LOONGSON2F
1812config CPU_NOP_WORKAROUNDS
1813 bool
1814
1815config CPU_JUMP_WORKAROUNDS
1816 bool
1817
1818config CPU_LOONGSON2F_WORKAROUNDS
1819 bool "Loongson 2F Workarounds"
1820 default y
1821 select CPU_NOP_WORKAROUNDS
1822 select CPU_JUMP_WORKAROUNDS
1823 help
1824 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1825 require workarounds. Without workarounds the system may hang
1826 unexpectedly. For more information please refer to the gas
1827 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1828
1829 Loongson 2F03 and later have fixed these issues and no workarounds
1830 are needed. The workarounds have no significant side effect on them
1831 but may decrease the performance of the system so this option should
1832 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1833 systems.
1834
1835 If unsure, please say Y.
1836endif # CPU_LOONGSON2F
1837
1838config SYS_SUPPORTS_ZBOOT
1839 bool
1840 select HAVE_KERNEL_GZIP
1841 select HAVE_KERNEL_BZIP2
1842 select HAVE_KERNEL_LZ4
1843 select HAVE_KERNEL_LZMA
1844 select HAVE_KERNEL_LZO
1845 select HAVE_KERNEL_XZ
1846
1847config SYS_SUPPORTS_ZBOOT_UART16550
1848 bool
1849 select SYS_SUPPORTS_ZBOOT
1850
1851config SYS_SUPPORTS_ZBOOT_UART_PROM
1852 bool
1853 select SYS_SUPPORTS_ZBOOT
1854
1855config CPU_LOONGSON2
1856 bool
1857 select CPU_SUPPORTS_32BIT_KERNEL
1858 select CPU_SUPPORTS_64BIT_KERNEL
1859 select CPU_SUPPORTS_HIGHMEM
1860 select CPU_SUPPORTS_HUGEPAGES
1861 select ARCH_HAS_PHYS_TO_DMA
1862 select CPU_HAS_LOAD_STORE_LR
1863
1864config CPU_LOONGSON1
1865 bool
1866 select CPU_MIPS32
1867 select CPU_MIPSR1
1868 select CPU_HAS_PREFETCH
1869 select CPU_HAS_LOAD_STORE_LR
1870 select CPU_SUPPORTS_32BIT_KERNEL
1871 select CPU_SUPPORTS_HIGHMEM
1872 select CPU_SUPPORTS_CPUFREQ
1873
1874config CPU_BMIPS32_3300
1875 select SMP_UP if SMP
1876 bool
1877
1878config CPU_BMIPS4350
1879 bool
1880 select SYS_SUPPORTS_SMP
1881 select SYS_SUPPORTS_HOTPLUG_CPU
1882
1883config CPU_BMIPS4380
1884 bool
1885 select MIPS_L1_CACHE_SHIFT_6
1886 select SYS_SUPPORTS_SMP
1887 select SYS_SUPPORTS_HOTPLUG_CPU
1888 select CPU_HAS_RIXI
1889
1890config CPU_BMIPS5000
1891 bool
1892 select MIPS_CPU_SCACHE
1893 select MIPS_L1_CACHE_SHIFT_7
1894 select SYS_SUPPORTS_SMP
1895 select SYS_SUPPORTS_HOTPLUG_CPU
1896 select CPU_HAS_RIXI
1897
1898config SYS_HAS_CPU_LOONGSON3
1899 bool
1900 select CPU_SUPPORTS_CPUFREQ
1901 select CPU_HAS_RIXI
1902
1903config SYS_HAS_CPU_LOONGSON2E
1904 bool
1905
1906config SYS_HAS_CPU_LOONGSON2F
1907 bool
1908 select CPU_SUPPORTS_CPUFREQ
1909 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1910 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1911
1912config SYS_HAS_CPU_LOONGSON1B
1913 bool
1914
1915config SYS_HAS_CPU_LOONGSON1C
1916 bool
1917
1918config SYS_HAS_CPU_MIPS32_R1
1919 bool
1920
1921config SYS_HAS_CPU_MIPS32_R2
1922 bool
1923
1924config SYS_HAS_CPU_MIPS32_R3_5
1925 bool
1926
1927config SYS_HAS_CPU_MIPS32_R5
1928 bool
1929
1930config SYS_HAS_CPU_MIPS32_R6
1931 bool
1932
1933config SYS_HAS_CPU_MIPS64_R1
1934 bool
1935
1936config SYS_HAS_CPU_MIPS64_R2
1937 bool
1938
1939config SYS_HAS_CPU_MIPS64_R6
1940 bool
1941
1942config SYS_HAS_CPU_R3000
1943 bool
1944
1945config SYS_HAS_CPU_TX39XX
1946 bool
1947
1948config SYS_HAS_CPU_VR41XX
1949 bool
1950
1951config SYS_HAS_CPU_R4300
1952 bool
1953
1954config SYS_HAS_CPU_R4X00
1955 bool
1956
1957config SYS_HAS_CPU_TX49XX
1958 bool
1959
1960config SYS_HAS_CPU_R5000
1961 bool
1962
1963config SYS_HAS_CPU_R5432
1964 bool
1965
1966config SYS_HAS_CPU_R5500
1967 bool
1968
1969config SYS_HAS_CPU_NEVADA
1970 bool
1971
1972config SYS_HAS_CPU_R8000
1973 bool
1974
1975config SYS_HAS_CPU_R10000
1976 bool
1977
1978config SYS_HAS_CPU_RM7000
1979 bool
1980
1981config SYS_HAS_CPU_SB1
1982 bool
1983
1984config SYS_HAS_CPU_CAVIUM_OCTEON
1985 bool
1986
1987config SYS_HAS_CPU_BMIPS
1988 bool
1989
1990config SYS_HAS_CPU_BMIPS32_3300
1991 bool
1992 select SYS_HAS_CPU_BMIPS
1993
1994config SYS_HAS_CPU_BMIPS4350
1995 bool
1996 select SYS_HAS_CPU_BMIPS
1997
1998config SYS_HAS_CPU_BMIPS4380
1999 bool
2000 select SYS_HAS_CPU_BMIPS
2001
2002config SYS_HAS_CPU_BMIPS5000
2003 bool
2004 select SYS_HAS_CPU_BMIPS
2005
2006config SYS_HAS_CPU_XLR
2007 bool
2008
2009config SYS_HAS_CPU_XLP
2010 bool
2011
2012#
2013# CPU may reorder R->R, R->W, W->R, W->W
2014# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
2015#
2016config WEAK_ORDERING
2017 bool
2018
2019#
2020# CPU may reorder reads and writes beyond LL/SC
2021# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
2022#
2023config WEAK_REORDERING_BEYOND_LLSC
2024 bool
2025endmenu
2026
2027#
2028# These two indicate any level of the MIPS32 and MIPS64 architecture
2029#
2030config CPU_MIPS32
2031 bool
2032 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
2033
2034config CPU_MIPS64
2035 bool
2036 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
2037
2038#
2039# These indicate the revision of the architecture
2040#
2041config CPU_MIPSR1
2042 bool
2043 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
2044
2045config CPU_MIPSR2
2046 bool
2047 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2048 select CPU_HAS_RIXI
2049 select MIPS_SPRAM
2050
2051config CPU_MIPSR6
2052 bool
2053 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2054 select CPU_HAS_RIXI
2055 select HAVE_ARCH_BITREVERSE
2056 select MIPS_ASID_BITS_VARIABLE
2057 select MIPS_CRC_SUPPORT
2058 select MIPS_SPRAM
2059
2060config TARGET_ISA_REV
2061 int
2062 default 1 if CPU_MIPSR1
2063 default 2 if CPU_MIPSR2
2064 default 6 if CPU_MIPSR6
2065 default 0
2066 help
2067 Reflects the ISA revision being targeted by the kernel build. This
2068 is effectively the Kconfig equivalent of MIPS_ISA_REV.
2069
2070config EVA
2071 bool
2072
2073config XPA
2074 bool
2075
2076config SYS_SUPPORTS_32BIT_KERNEL
2077 bool
2078config SYS_SUPPORTS_64BIT_KERNEL
2079 bool
2080config CPU_SUPPORTS_32BIT_KERNEL
2081 bool
2082config CPU_SUPPORTS_64BIT_KERNEL
2083 bool
2084config CPU_SUPPORTS_CPUFREQ
2085 bool
2086config CPU_SUPPORTS_ADDRWINCFG
2087 bool
2088config CPU_SUPPORTS_HUGEPAGES
2089 bool
2090config CPU_SUPPORTS_UNCACHED_ACCELERATED
2091 bool
2092config MIPS_PGD_C0_CONTEXT
2093 bool
2094 default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2095
2096#
2097# Set to y for ptrace access to watch registers.
2098#
2099config HARDWARE_WATCHPOINTS
2100 bool
2101 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2102
2103menu "Kernel type"
2104
2105choice
2106 prompt "Kernel code model"
2107 help
2108 You should only select this option if you have a workload that
2109 actually benefits from 64-bit processing or if your machine has
2110 large memory. You will only be presented a single option in this
2111 menu if your system does not support both 32-bit and 64-bit kernels.
2112
2113config 32BIT
2114 bool "32-bit kernel"
2115 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2116 select TRAD_SIGNALS
2117 help
2118 Select this option if you want to build a 32-bit kernel.
2119
2120config 64BIT
2121 bool "64-bit kernel"
2122 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2123 help
2124 Select this option if you want to build a 64-bit kernel.
2125
2126endchoice
2127
2128config KVM_GUEST
2129 bool "KVM Guest Kernel"
2130 depends on BROKEN_ON_SMP
2131 help
2132 Select this option if building a guest kernel for KVM (Trap & Emulate)
2133 mode.
2134
2135config KVM_GUEST_TIMER_FREQ
2136 int "Count/Compare Timer Frequency (MHz)"
2137 depends on KVM_GUEST
2138 default 100
2139 help
2140 Set this to non-zero if building a guest kernel for KVM to skip RTC
2141 emulation when determining guest CPU Frequency. Instead, the guest's
2142 timer frequency is specified directly.
2143
2144config MIPS_VA_BITS_48
2145 bool "48 bits virtual memory"
2146 depends on 64BIT
2147 help
2148 Support a maximum at least 48 bits of application virtual
2149 memory. Default is 40 bits or less, depending on the CPU.
2150 For page sizes 16k and above, this option results in a small
2151 memory overhead for page tables. For 4k page size, a fourth
2152 level of page tables is added which imposes both a memory
2153 overhead as well as slower TLB fault handling.
2154
2155 If unsure, say N.
2156
2157choice
2158 prompt "Kernel page size"
2159 default PAGE_SIZE_4KB
2160
2161config PAGE_SIZE_4KB
2162 bool "4kB"
2163 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
2164 help
2165 This option select the standard 4kB Linux page size. On some
2166 R3000-family processors this is the only available page size. Using
2167 4kB page size will minimize memory consumption and is therefore
2168 recommended for low memory systems.
2169
2170config PAGE_SIZE_8KB
2171 bool "8kB"
2172 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
2173 depends on !MIPS_VA_BITS_48
2174 help
2175 Using 8kB page size will result in higher performance kernel at
2176 the price of higher memory consumption. This option is available
2177 only on R8000 and cnMIPS processors. Note that you will need a
2178 suitable Linux distribution to support this.
2179
2180config PAGE_SIZE_16KB
2181 bool "16kB"
2182 depends on !CPU_R3000 && !CPU_TX39XX
2183 help
2184 Using 16kB page size will result in higher performance kernel at
2185 the price of higher memory consumption. This option is available on
2186 all non-R3000 family processors. Note that you will need a suitable
2187 Linux distribution to support this.
2188
2189config PAGE_SIZE_32KB
2190 bool "32kB"
2191 depends on CPU_CAVIUM_OCTEON
2192 depends on !MIPS_VA_BITS_48
2193 help
2194 Using 32kB page size will result in higher performance kernel at
2195 the price of higher memory consumption. This option is available
2196 only on cnMIPS cores. Note that you will need a suitable Linux
2197 distribution to support this.
2198
2199config PAGE_SIZE_64KB
2200 bool "64kB"
2201 depends on !CPU_R3000 && !CPU_TX39XX
2202 help
2203 Using 64kB page size will result in higher performance kernel at
2204 the price of higher memory consumption. This option is available on
2205 all non-R3000 family processor. Not that at the time of this
2206 writing this option is still high experimental.
2207
2208endchoice
2209
2210config FORCE_MAX_ZONEORDER
2211 int "Maximum zone order"
2212 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2213 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2214 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2215 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2216 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2217 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2218 range 11 64
2219 default "11"
2220 help
2221 The kernel memory allocator divides physically contiguous memory
2222 blocks into "zones", where each zone is a power of two number of
2223 pages. This option selects the largest power of two that the kernel
2224 keeps in the memory allocator. If you need to allocate very large
2225 blocks of physically contiguous memory, then you may need to
2226 increase this value.
2227
2228 This config option is actually maximum order plus one. For example,
2229 a value of 11 means that the largest free memory block is 2^10 pages.
2230
2231 The page size is not necessarily 4KB. Keep this in mind
2232 when choosing a value for this option.
2233
2234config BOARD_SCACHE
2235 bool
2236
2237config IP22_CPU_SCACHE
2238 bool
2239 select BOARD_SCACHE
2240
2241#
2242# Support for a MIPS32 / MIPS64 style S-caches
2243#
2244config MIPS_CPU_SCACHE
2245 bool
2246 select BOARD_SCACHE
2247
2248config R5000_CPU_SCACHE
2249 bool
2250 select BOARD_SCACHE
2251
2252config RM7000_CPU_SCACHE
2253 bool
2254 select BOARD_SCACHE
2255
2256config SIBYTE_DMA_PAGEOPS
2257 bool "Use DMA to clear/copy pages"
2258 depends on CPU_SB1
2259 help
2260 Instead of using the CPU to zero and copy pages, use a Data Mover
2261 channel. These DMA channels are otherwise unused by the standard
2262 SiByte Linux port. Seems to give a small performance benefit.
2263
2264config CPU_HAS_PREFETCH
2265 bool
2266
2267config CPU_GENERIC_DUMP_TLB
2268 bool
2269 default y if !(CPU_R3000 || CPU_R8000 || CPU_TX39XX)
2270
2271config MIPS_FP_SUPPORT
2272 bool "Floating Point support" if EXPERT
2273 default y
2274 help
2275 Select y to include support for floating point in the kernel
2276 including initialization of FPU hardware, FP context save & restore
2277 and emulation of an FPU where necessary. Without this support any
2278 userland program attempting to use floating point instructions will
2279 receive a SIGILL.
2280
2281 If you know that your userland will not attempt to use floating point
2282 instructions then you can say n here to shrink the kernel a little.
2283
2284 If unsure, say y.
2285
2286config CPU_R2300_FPU
2287 bool
2288 depends on MIPS_FP_SUPPORT
2289 default y if CPU_R3000 || CPU_TX39XX
2290
2291config CPU_R4K_FPU
2292 bool
2293 depends on MIPS_FP_SUPPORT
2294 default y if !CPU_R2300_FPU
2295
2296config CPU_R4K_CACHE_TLB
2297 bool
2298 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2299
2300config MIPS_MT_SMP
2301 bool "MIPS MT SMP support (1 TC on each available VPE)"
2302 default y
2303 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2304 select CPU_MIPSR2_IRQ_VI
2305 select CPU_MIPSR2_IRQ_EI
2306 select SYNC_R4K
2307 select MIPS_MT
2308 select SMP
2309 select SMP_UP
2310 select SYS_SUPPORTS_SMP
2311 select SYS_SUPPORTS_SCHED_SMT
2312 select MIPS_PERF_SHARED_TC_COUNTERS
2313 help
2314 This is a kernel model which is known as SMVP. This is supported
2315 on cores with the MT ASE and uses the available VPEs to implement
2316 virtual processors which supports SMP. This is equivalent to the
2317 Intel Hyperthreading feature. For further information go to
2318 <http://www.imgtec.com/mips/mips-multithreading.asp>.
2319
2320config MIPS_MT
2321 bool
2322
2323config SCHED_SMT
2324 bool "SMT (multithreading) scheduler support"
2325 depends on SYS_SUPPORTS_SCHED_SMT
2326 default n
2327 help
2328 SMT scheduler support improves the CPU scheduler's decision making
2329 when dealing with MIPS MT enabled cores at a cost of slightly
2330 increased overhead in some places. If unsure say N here.
2331
2332config SYS_SUPPORTS_SCHED_SMT
2333 bool
2334
2335config SYS_SUPPORTS_MULTITHREADING
2336 bool
2337
2338config MIPS_MT_FPAFF
2339 bool "Dynamic FPU affinity for FP-intensive threads"
2340 default y
2341 depends on MIPS_MT_SMP
2342
2343config MIPSR2_TO_R6_EMULATOR
2344 bool "MIPS R2-to-R6 emulator"
2345 depends on CPU_MIPSR6
2346 depends on MIPS_FP_SUPPORT
2347 default y
2348 help
2349 Choose this option if you want to run non-R6 MIPS userland code.
2350 Even if you say 'Y' here, the emulator will still be disabled by
2351 default. You can enable it using the 'mipsr2emu' kernel option.
2352 The only reason this is a build-time option is to save ~14K from the
2353 final kernel image.
2354
2355config SYS_SUPPORTS_VPE_LOADER
2356 bool
2357 depends on SYS_SUPPORTS_MULTITHREADING
2358 help
2359 Indicates that the platform supports the VPE loader, and provides
2360 physical_memsize.
2361
2362config MIPS_VPE_LOADER
2363 bool "VPE loader support."
2364 depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2365 select CPU_MIPSR2_IRQ_VI
2366 select CPU_MIPSR2_IRQ_EI
2367 select MIPS_MT
2368 help
2369 Includes a loader for loading an elf relocatable object
2370 onto another VPE and running it.
2371
2372config MIPS_VPE_LOADER_CMP
2373 bool
2374 default "y"
2375 depends on MIPS_VPE_LOADER && MIPS_CMP
2376
2377config MIPS_VPE_LOADER_MT
2378 bool
2379 default "y"
2380 depends on MIPS_VPE_LOADER && !MIPS_CMP
2381
2382config MIPS_VPE_LOADER_TOM
2383 bool "Load VPE program into memory hidden from linux"
2384 depends on MIPS_VPE_LOADER
2385 default y
2386 help
2387 The loader can use memory that is present but has been hidden from
2388 Linux using the kernel command line option "mem=xxMB". It's up to
2389 you to ensure the amount you put in the option and the space your
2390 program requires is less or equal to the amount physically present.
2391
2392config MIPS_VPE_APSP_API
2393 bool "Enable support for AP/SP API (RTLX)"
2394 depends on MIPS_VPE_LOADER
2395
2396config MIPS_VPE_APSP_API_CMP
2397 bool
2398 default "y"
2399 depends on MIPS_VPE_APSP_API && MIPS_CMP
2400
2401config MIPS_VPE_APSP_API_MT
2402 bool
2403 default "y"
2404 depends on MIPS_VPE_APSP_API && !MIPS_CMP
2405
2406config MIPS_CMP
2407 bool "MIPS CMP framework support (DEPRECATED)"
2408 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2409 select SMP
2410 select SYNC_R4K
2411 select SYS_SUPPORTS_SMP
2412 select WEAK_ORDERING
2413 default n
2414 help
2415 Select this if you are using a bootloader which implements the "CMP
2416 framework" protocol (ie. YAMON) and want your kernel to make use of
2417 its ability to start secondary CPUs.
2418
2419 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2420 instead of this.
2421
2422config MIPS_CPS
2423 bool "MIPS Coherent Processing System support"
2424 depends on SYS_SUPPORTS_MIPS_CPS
2425 select MIPS_CM
2426 select MIPS_CPS_PM if HOTPLUG_CPU
2427 select SMP
2428 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2429 select SYS_SUPPORTS_HOTPLUG_CPU
2430 select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2431 select SYS_SUPPORTS_SMP
2432 select WEAK_ORDERING
2433 help
2434 Select this if you wish to run an SMP kernel across multiple cores
2435 within a MIPS Coherent Processing System. When this option is
2436 enabled the kernel will probe for other cores and boot them with
2437 no external assistance. It is safe to enable this when hardware
2438 support is unavailable.
2439
2440config MIPS_CPS_PM
2441 depends on MIPS_CPS
2442 bool
2443
2444config MIPS_CM
2445 bool
2446 select MIPS_CPC
2447
2448config MIPS_CPC
2449 bool
2450
2451config SB1_PASS_2_WORKAROUNDS
2452 bool
2453 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2454 default y
2455
2456config SB1_PASS_2_1_WORKAROUNDS
2457 bool
2458 depends on CPU_SB1 && CPU_SB1_PASS_2
2459 default y
2460
2461
2462choice
2463 prompt "SmartMIPS or microMIPS ASE support"
2464
2465config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2466 bool "None"
2467 help
2468 Select this if you want neither microMIPS nor SmartMIPS support
2469
2470config CPU_HAS_SMARTMIPS
2471 depends on SYS_SUPPORTS_SMARTMIPS
2472 bool "SmartMIPS"
2473 help
2474 SmartMIPS is a extension of the MIPS32 architecture aimed at
2475 increased security at both hardware and software level for
2476 smartcards. Enabling this option will allow proper use of the
2477 SmartMIPS instructions by Linux applications. However a kernel with
2478 this option will not work on a MIPS core without SmartMIPS core. If
2479 you don't know you probably don't have SmartMIPS and should say N
2480 here.
2481
2482config CPU_MICROMIPS
2483 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2484 bool "microMIPS"
2485 help
2486 When this option is enabled the kernel will be built using the
2487 microMIPS ISA
2488
2489endchoice
2490
2491config CPU_HAS_MSA
2492 bool "Support for the MIPS SIMD Architecture"
2493 depends on CPU_SUPPORTS_MSA
2494 depends on MIPS_FP_SUPPORT
2495 depends on 64BIT || MIPS_O32_FP64_SUPPORT
2496 help
2497 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2498 and a set of SIMD instructions to operate on them. When this option
2499 is enabled the kernel will support allocating & switching MSA
2500 vector register contexts. If you know that your kernel will only be
2501 running on CPUs which do not support MSA or that your userland will
2502 not be making use of it then you may wish to say N here to reduce
2503 the size & complexity of your kernel.
2504
2505 If unsure, say Y.
2506
2507config CPU_HAS_WB
2508 bool
2509
2510config XKS01
2511 bool
2512
2513config CPU_HAS_RIXI
2514 bool
2515
2516config CPU_HAS_LOAD_STORE_LR
2517 bool
2518 help
2519 CPU has support for unaligned load and store instructions:
2520 LWL, LWR, SWL, SWR (Load/store word left/right).
2521 LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit systems).
2522
2523#
2524# Vectored interrupt mode is an R2 feature
2525#
2526config CPU_MIPSR2_IRQ_VI
2527 bool
2528
2529#
2530# Extended interrupt mode is an R2 feature
2531#
2532config CPU_MIPSR2_IRQ_EI
2533 bool
2534
2535config CPU_HAS_SYNC
2536 bool
2537 depends on !CPU_R3000
2538 default y
2539
2540#
2541# CPU non-features
2542#
2543config CPU_DADDI_WORKAROUNDS
2544 bool
2545
2546config CPU_R4000_WORKAROUNDS
2547 bool
2548 select CPU_R4400_WORKAROUNDS
2549
2550config CPU_R4400_WORKAROUNDS
2551 bool
2552
2553config MIPS_ASID_SHIFT
2554 int
2555 default 6 if CPU_R3000 || CPU_TX39XX
2556 default 4 if CPU_R8000
2557 default 0
2558
2559config MIPS_ASID_BITS
2560 int
2561 default 0 if MIPS_ASID_BITS_VARIABLE
2562 default 6 if CPU_R3000 || CPU_TX39XX
2563 default 8
2564
2565config MIPS_ASID_BITS_VARIABLE
2566 bool
2567
2568config MIPS_CRC_SUPPORT
2569 bool
2570
2571#
2572# - Highmem only makes sense for the 32-bit kernel.
2573# - The current highmem code will only work properly on physically indexed
2574# caches such as R3000, SB1, R7000 or those that look like they're virtually
2575# indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2576# moment we protect the user and offer the highmem option only on machines
2577# where it's known to be safe. This will not offer highmem on a few systems
2578# such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2579# indexed CPUs but we're playing safe.
2580# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2581# know they might have memory configurations that could make use of highmem
2582# support.
2583#
2584config HIGHMEM
2585 bool "High Memory Support"
2586 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2587
2588config CPU_SUPPORTS_HIGHMEM
2589 bool
2590
2591config SYS_SUPPORTS_HIGHMEM
2592 bool
2593
2594config SYS_SUPPORTS_SMARTMIPS
2595 bool
2596
2597config SYS_SUPPORTS_MICROMIPS
2598 bool
2599
2600config SYS_SUPPORTS_MIPS16
2601 bool
2602 help
2603 This option must be set if a kernel might be executed on a MIPS16-
2604 enabled CPU even if MIPS16 is not actually being used. In other
2605 words, it makes the kernel MIPS16-tolerant.
2606
2607config CPU_SUPPORTS_MSA
2608 bool
2609
2610config ARCH_FLATMEM_ENABLE
2611 def_bool y
2612 depends on !NUMA && !CPU_LOONGSON2
2613
2614config ARCH_DISCONTIGMEM_ENABLE
2615 bool
2616 default y if SGI_IP27
2617 help
2618 Say Y to support efficient handling of discontiguous physical memory,
2619 for architectures which are either NUMA (Non-Uniform Memory Access)
2620 or have huge holes in the physical address space for other reasons.
2621 See <file:Documentation/vm/numa.rst> for more.
2622
2623config ARCH_SPARSEMEM_ENABLE
2624 bool
2625 select SPARSEMEM_STATIC
2626
2627config NUMA
2628 bool "NUMA Support"
2629 depends on SYS_SUPPORTS_NUMA
2630 help
2631 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2632 Access). This option improves performance on systems with more
2633 than two nodes; on two node systems it is generally better to
2634 leave it disabled; on single node systems disable this option
2635 disabled.
2636
2637config SYS_SUPPORTS_NUMA
2638 bool
2639
2640config RELOCATABLE
2641 bool "Relocatable kernel"
2642 depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC)
2643 help
2644 This builds a kernel image that retains relocation information
2645 so it can be loaded someplace besides the default 1MB.
2646 The relocations make the kernel binary about 15% larger,
2647 but are discarded at runtime
2648
2649config RELOCATION_TABLE_SIZE
2650 hex "Relocation table size"
2651 depends on RELOCATABLE
2652 range 0x0 0x01000000
2653 default "0x00100000"
2654 ---help---
2655 A table of relocation data will be appended to the kernel binary
2656 and parsed at boot to fix up the relocated kernel.
2657
2658 This option allows the amount of space reserved for the table to be
2659 adjusted, although the default of 1Mb should be ok in most cases.
2660
2661 The build will fail and a valid size suggested if this is too small.
2662
2663 If unsure, leave at the default value.
2664
2665config RANDOMIZE_BASE
2666 bool "Randomize the address of the kernel image"
2667 depends on RELOCATABLE
2668 ---help---
2669 Randomizes the physical and virtual address at which the
2670 kernel image is loaded, as a security feature that
2671 deters exploit attempts relying on knowledge of the location
2672 of kernel internals.
2673
2674 Entropy is generated using any coprocessor 0 registers available.
2675
2676 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2677
2678 If unsure, say N.
2679
2680config RANDOMIZE_BASE_MAX_OFFSET
2681 hex "Maximum kASLR offset" if EXPERT
2682 depends on RANDOMIZE_BASE
2683 range 0x0 0x40000000 if EVA || 64BIT
2684 range 0x0 0x08000000
2685 default "0x01000000"
2686 ---help---
2687 When kASLR is active, this provides the maximum offset that will
2688 be applied to the kernel image. It should be set according to the
2689 amount of physical RAM available in the target system minus
2690 PHYSICAL_START and must be a power of 2.
2691
2692 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2693 EVA or 64-bit. The default is 16Mb.
2694
2695config NODES_SHIFT
2696 int
2697 default "6"
2698 depends on NEED_MULTIPLE_NODES
2699
2700config HW_PERF_EVENTS
2701 bool "Enable hardware performance counter support for perf events"
2702 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2703 default y
2704 help
2705 Enable hardware performance counter support for perf events. If
2706 disabled, perf events will use software events only.
2707
2708config SMP
2709 bool "Multi-Processing support"
2710 depends on SYS_SUPPORTS_SMP
2711 help
2712 This enables support for systems with more than one CPU. If you have
2713 a system with only one CPU, say N. If you have a system with more
2714 than one CPU, say Y.
2715
2716 If you say N here, the kernel will run on uni- and multiprocessor
2717 machines, but will use only one CPU of a multiprocessor machine. If
2718 you say Y here, the kernel will run on many, but not all,
2719 uniprocessor machines. On a uniprocessor machine, the kernel
2720 will run faster if you say N here.
2721
2722 People using multiprocessor machines who say Y here should also say
2723 Y to "Enhanced Real Time Clock Support", below.
2724
2725 See also the SMP-HOWTO available at
2726 <http://www.tldp.org/docs.html#howto>.
2727
2728 If you don't know what to do here, say N.
2729
2730config HOTPLUG_CPU
2731 bool "Support for hot-pluggable CPUs"
2732 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2733 help
2734 Say Y here to allow turning CPUs off and on. CPUs can be
2735 controlled through /sys/devices/system/cpu.
2736 (Note: power management support will enable this option
2737 automatically on SMP systems. )
2738 Say N if you want to disable CPU hotplug.
2739
2740config SMP_UP
2741 bool
2742
2743config SYS_SUPPORTS_MIPS_CMP
2744 bool
2745
2746config SYS_SUPPORTS_MIPS_CPS
2747 bool
2748
2749config SYS_SUPPORTS_SMP
2750 bool
2751
2752config NR_CPUS_DEFAULT_4
2753 bool
2754
2755config NR_CPUS_DEFAULT_8
2756 bool
2757
2758config NR_CPUS_DEFAULT_16
2759 bool
2760
2761config NR_CPUS_DEFAULT_32
2762 bool
2763
2764config NR_CPUS_DEFAULT_64
2765 bool
2766
2767config NR_CPUS
2768 int "Maximum number of CPUs (2-256)"
2769 range 2 256
2770 depends on SMP
2771 default "4" if NR_CPUS_DEFAULT_4
2772 default "8" if NR_CPUS_DEFAULT_8
2773 default "16" if NR_CPUS_DEFAULT_16
2774 default "32" if NR_CPUS_DEFAULT_32
2775 default "64" if NR_CPUS_DEFAULT_64
2776 help
2777 This allows you to specify the maximum number of CPUs which this
2778 kernel will support. The maximum supported value is 32 for 32-bit
2779 kernel and 64 for 64-bit kernels; the minimum value which makes
2780 sense is 1 for Qemu (useful only for kernel debugging purposes)
2781 and 2 for all others.
2782
2783 This is purely to save memory - each supported CPU adds
2784 approximately eight kilobytes to the kernel image. For best
2785 performance should round up your number of processors to the next
2786 power of two.
2787
2788config MIPS_PERF_SHARED_TC_COUNTERS
2789 bool
2790
2791config MIPS_NR_CPU_NR_MAP_1024
2792 bool
2793
2794config MIPS_NR_CPU_NR_MAP
2795 int
2796 depends on SMP
2797 default 1024 if MIPS_NR_CPU_NR_MAP_1024
2798 default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
2799
2800#
2801# Timer Interrupt Frequency Configuration
2802#
2803
2804choice
2805 prompt "Timer frequency"
2806 default HZ_250
2807 help
2808 Allows the configuration of the timer frequency.
2809
2810 config HZ_24
2811 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2812
2813 config HZ_48
2814 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2815
2816 config HZ_100
2817 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2818
2819 config HZ_128
2820 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2821
2822 config HZ_250
2823 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2824
2825 config HZ_256
2826 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2827
2828 config HZ_1000
2829 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2830
2831 config HZ_1024
2832 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2833
2834endchoice
2835
2836config SYS_SUPPORTS_24HZ
2837 bool
2838
2839config SYS_SUPPORTS_48HZ
2840 bool
2841
2842config SYS_SUPPORTS_100HZ
2843 bool
2844
2845config SYS_SUPPORTS_128HZ
2846 bool
2847
2848config SYS_SUPPORTS_250HZ
2849 bool
2850
2851config SYS_SUPPORTS_256HZ
2852 bool
2853
2854config SYS_SUPPORTS_1000HZ
2855 bool
2856
2857config SYS_SUPPORTS_1024HZ
2858 bool
2859
2860config SYS_SUPPORTS_ARBIT_HZ
2861 bool
2862 default y if !SYS_SUPPORTS_24HZ && \
2863 !SYS_SUPPORTS_48HZ && \
2864 !SYS_SUPPORTS_100HZ && \
2865 !SYS_SUPPORTS_128HZ && \
2866 !SYS_SUPPORTS_250HZ && \
2867 !SYS_SUPPORTS_256HZ && \
2868 !SYS_SUPPORTS_1000HZ && \
2869 !SYS_SUPPORTS_1024HZ
2870
2871config HZ
2872 int
2873 default 24 if HZ_24
2874 default 48 if HZ_48
2875 default 100 if HZ_100
2876 default 128 if HZ_128
2877 default 250 if HZ_250
2878 default 256 if HZ_256
2879 default 1000 if HZ_1000
2880 default 1024 if HZ_1024
2881
2882config SCHED_HRTICK
2883 def_bool HIGH_RES_TIMERS
2884
2885config KEXEC
2886 bool "Kexec system call"
2887 select KEXEC_CORE
2888 help
2889 kexec is a system call that implements the ability to shutdown your
2890 current kernel, and to start another kernel. It is like a reboot
2891 but it is independent of the system firmware. And like a reboot
2892 you can start any kernel with it, not just Linux.
2893
2894 The name comes from the similarity to the exec system call.
2895
2896 It is an ongoing process to be certain the hardware in a machine
2897 is properly shutdown, so do not be surprised if this code does not
2898 initially work for you. As of this writing the exact hardware
2899 interface is strongly in flux, so no good recommendation can be
2900 made.
2901
2902config CRASH_DUMP
2903 bool "Kernel crash dumps"
2904 help
2905 Generate crash dump after being started by kexec.
2906 This should be normally only set in special crash dump kernels
2907 which are loaded in the main kernel with kexec-tools into
2908 a specially reserved region and then later executed after
2909 a crash by kdump/kexec. The crash dump kernel must be compiled
2910 to a memory address not used by the main kernel or firmware using
2911 PHYSICAL_START.
2912
2913config PHYSICAL_START
2914 hex "Physical address where the kernel is loaded"
2915 default "0xffffffff84000000"
2916 depends on CRASH_DUMP
2917 help
2918 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2919 If you plan to use kernel for capturing the crash dump change
2920 this value to start of the reserved region (the "X" value as
2921 specified in the "crashkernel=YM@XM" command line boot parameter
2922 passed to the panic-ed kernel).
2923
2924config SECCOMP
2925 bool "Enable seccomp to safely compute untrusted bytecode"
2926 depends on PROC_FS
2927 default y
2928 help
2929 This kernel feature is useful for number crunching applications
2930 that may need to compute untrusted bytecode during their
2931 execution. By using pipes or other transports made available to
2932 the process as file descriptors supporting the read/write
2933 syscalls, it's possible to isolate those applications in
2934 their own address space using seccomp. Once seccomp is
2935 enabled via /proc/<pid>/seccomp, it cannot be disabled
2936 and the task is only allowed to execute a few safe syscalls
2937 defined by each seccomp mode.
2938
2939 If unsure, say Y. Only embedded should say N here.
2940
2941config MIPS_O32_FP64_SUPPORT
2942 bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
2943 depends on 32BIT || MIPS32_O32
2944 help
2945 When this is enabled, the kernel will support use of 64-bit floating
2946 point registers with binaries using the O32 ABI along with the
2947 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2948 32-bit MIPS systems this support is at the cost of increasing the
2949 size and complexity of the compiled FPU emulator. Thus if you are
2950 running a MIPS32 system and know that none of your userland binaries
2951 will require 64-bit floating point, you may wish to reduce the size
2952 of your kernel & potentially improve FP emulation performance by
2953 saying N here.
2954
2955 Although binutils currently supports use of this flag the details
2956 concerning its effect upon the O32 ABI in userland are still being
2957 worked on. In order to avoid userland becoming dependant upon current
2958 behaviour before the details have been finalised, this option should
2959 be considered experimental and only enabled by those working upon
2960 said details.
2961
2962 If unsure, say N.
2963
2964config USE_OF
2965 bool
2966 select OF
2967 select OF_EARLY_FLATTREE
2968 select IRQ_DOMAIN
2969
2970config UHI_BOOT
2971 bool
2972
2973config BUILTIN_DTB
2974 bool
2975
2976choice
2977 prompt "Kernel appended dtb support" if USE_OF
2978 default MIPS_NO_APPENDED_DTB
2979
2980 config MIPS_NO_APPENDED_DTB
2981 bool "None"
2982 help
2983 Do not enable appended dtb support.
2984
2985 config MIPS_ELF_APPENDED_DTB
2986 bool "vmlinux"
2987 help
2988 With this option, the boot code will look for a device tree binary
2989 DTB) included in the vmlinux ELF section .appended_dtb. By default
2990 it is empty and the DTB can be appended using binutils command
2991 objcopy:
2992
2993 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
2994
2995 This is meant as a backward compatiblity convenience for those
2996 systems with a bootloader that can't be upgraded to accommodate
2997 the documented boot protocol using a device tree.
2998
2999 config MIPS_RAW_APPENDED_DTB
3000 bool "vmlinux.bin or vmlinuz.bin"
3001 help
3002 With this option, the boot code will look for a device tree binary
3003 DTB) appended to raw vmlinux.bin or vmlinuz.bin.
3004 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
3005
3006 This is meant as a backward compatibility convenience for those
3007 systems with a bootloader that can't be upgraded to accommodate
3008 the documented boot protocol using a device tree.
3009
3010 Beware that there is very little in terms of protection against
3011 this option being confused by leftover garbage in memory that might
3012 look like a DTB header after a reboot if no actual DTB is appended
3013 to vmlinux.bin. Do not leave this option active in a production kernel
3014 if you don't intend to always append a DTB.
3015endchoice
3016
3017choice
3018 prompt "Kernel command line type" if !CMDLINE_OVERRIDE
3019 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
3020 !MIPS_MALTA && \
3021 !CAVIUM_OCTEON_SOC
3022 default MIPS_CMDLINE_FROM_BOOTLOADER
3023
3024 config MIPS_CMDLINE_FROM_DTB
3025 depends on USE_OF
3026 bool "Dtb kernel arguments if available"
3027
3028 config MIPS_CMDLINE_DTB_EXTEND
3029 depends on USE_OF
3030 bool "Extend dtb kernel arguments with bootloader arguments"
3031
3032 config MIPS_CMDLINE_FROM_BOOTLOADER
3033 bool "Bootloader kernel arguments if available"
3034
3035 config MIPS_CMDLINE_BUILTIN_EXTEND
3036 depends on CMDLINE_BOOL
3037 bool "Extend builtin kernel arguments with bootloader arguments"
3038endchoice
3039
3040endmenu
3041
3042config LOCKDEP_SUPPORT
3043 bool
3044 default y
3045
3046config STACKTRACE_SUPPORT
3047 bool
3048 default y
3049
3050config HAVE_LATENCYTOP_SUPPORT
3051 bool
3052 default y
3053
3054config PGTABLE_LEVELS
3055 int
3056 default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3057 default 3 if 64BIT && !PAGE_SIZE_64KB
3058 default 2
3059
3060config MIPS_AUTO_PFN_OFFSET
3061 bool
3062
3063menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
3064
3065config HW_HAS_EISA
3066 bool
3067config HW_HAS_PCI
3068 bool
3069
3070config PCI
3071 bool "Support for PCI controller"
3072 depends on HW_HAS_PCI
3073 select PCI_DOMAINS
3074 help
3075 Find out whether you have a PCI motherboard. PCI is the name of a
3076 bus system, i.e. the way the CPU talks to the other stuff inside
3077 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
3078 say Y, otherwise N.
3079
3080config HT_PCI
3081 bool "Support for HT-linked PCI"
3082 default y
3083 depends on CPU_LOONGSON3
3084 select PCI
3085 select PCI_DOMAINS
3086 help
3087 Loongson family machines use Hyper-Transport bus for inter-core
3088 connection and device connection. The PCI bus is a subordinate
3089 linked at HT. Choose Y for Loongson-3 based machines.
3090
3091config PCI_DOMAINS
3092 bool
3093
3094config PCI_DOMAINS_GENERIC
3095 bool
3096
3097config PCI_DRIVERS_GENERIC
3098 select PCI_DOMAINS_GENERIC if PCI_DOMAINS
3099 bool
3100
3101config PCI_DRIVERS_LEGACY
3102 def_bool !PCI_DRIVERS_GENERIC
3103 select NO_GENERIC_PCI_IOPORT_MAP
3104
3105source "drivers/pci/Kconfig"
3106
3107#
3108# ISA support is now enabled via select. Too many systems still have the one
3109# or other ISA chip on the board that users don't know about so don't expect
3110# users to choose the right thing ...
3111#
3112config ISA
3113 bool
3114
3115config EISA
3116 bool "EISA support"
3117 depends on HW_HAS_EISA
3118 select ISA
3119 select GENERIC_ISA_DMA
3120 ---help---
3121 The Extended Industry Standard Architecture (EISA) bus was
3122 developed as an open alternative to the IBM MicroChannel bus.
3123
3124 The EISA bus provided some of the features of the IBM MicroChannel
3125 bus while maintaining backward compatibility with cards made for
3126 the older ISA bus. The EISA bus saw limited use between 1988 and
3127 1995 when it was made obsolete by the PCI bus.
3128
3129 Say Y here if you are building a kernel for an EISA-based machine.
3130
3131 Otherwise, say N.
3132
3133source "drivers/eisa/Kconfig"
3134
3135config TC
3136 bool "TURBOchannel support"
3137 depends on MACH_DECSTATION
3138 help
3139 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3140 processors. TURBOchannel programming specifications are available
3141 at:
3142 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3143 and:
3144 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3145 Linux driver support status is documented at:
3146 <http://www.linux-mips.org/wiki/DECstation>
3147
3148config MMU
3149 bool
3150 default y
3151
3152config ARCH_MMAP_RND_BITS_MIN
3153 default 12 if 64BIT
3154 default 8
3155
3156config ARCH_MMAP_RND_BITS_MAX
3157 default 18 if 64BIT
3158 default 15
3159
3160config ARCH_MMAP_RND_COMPAT_BITS_MIN
3161 default 8
3162
3163config ARCH_MMAP_RND_COMPAT_BITS_MAX
3164 default 15
3165
3166config I8253
3167 bool
3168 select CLKSRC_I8253
3169 select CLKEVT_I8253
3170 select MIPS_EXTERNAL_TIMER
3171
3172config ZONE_DMA
3173 bool
3174
3175config ZONE_DMA32
3176 bool
3177
3178source "drivers/pcmcia/Kconfig"
3179
3180config HAS_RAPIDIO
3181 bool
3182 default n
3183
3184config RAPIDIO
3185 tristate "RapidIO support"
3186 depends on HAS_RAPIDIO || PCI
3187 help
3188 If you say Y here, the kernel will include drivers and
3189 infrastructure code to support RapidIO interconnect devices.
3190
3191source "drivers/rapidio/Kconfig"
3192
3193endmenu
3194
3195config TRAD_SIGNALS
3196 bool
3197
3198config MIPS32_COMPAT
3199 bool
3200
3201config COMPAT
3202 bool
3203
3204config SYSVIPC_COMPAT
3205 bool
3206
3207config MIPS32_O32
3208 bool "Kernel support for o32 binaries"
3209 depends on 64BIT
3210 select ARCH_WANT_OLD_COMPAT_IPC
3211 select COMPAT
3212 select MIPS32_COMPAT
3213 select SYSVIPC_COMPAT if SYSVIPC
3214 help
3215 Select this option if you want to run o32 binaries. These are pure
3216 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
3217 existing binaries are in this format.
3218
3219 If unsure, say Y.
3220
3221config MIPS32_N32
3222 bool "Kernel support for n32 binaries"
3223 depends on 64BIT
3224 select COMPAT
3225 select MIPS32_COMPAT
3226 select SYSVIPC_COMPAT if SYSVIPC
3227 help
3228 Select this option if you want to run n32 binaries. These are
3229 64-bit binaries using 32-bit quantities for addressing and certain
3230 data that would normally be 64-bit. They are used in special
3231 cases.
3232
3233 If unsure, say N.
3234
3235config BINFMT_ELF32
3236 bool
3237 default y if MIPS32_O32 || MIPS32_N32
3238 select ELFCORE
3239
3240menu "Power management options"
3241
3242config ARCH_HIBERNATION_POSSIBLE
3243 def_bool y
3244 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3245
3246config ARCH_SUSPEND_POSSIBLE
3247 def_bool y
3248 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3249
3250source "kernel/power/Kconfig"
3251
3252endmenu
3253
3254config MIPS_EXTERNAL_TIMER
3255 bool
3256
3257menu "CPU Power Management"
3258
3259if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3260source "drivers/cpufreq/Kconfig"
3261endif
3262
3263source "drivers/cpuidle/Kconfig"
3264
3265endmenu
3266
3267source "drivers/firmware/Kconfig"
3268
3269source "arch/mips/kvm/Kconfig"