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1# SPDX-License-Identifier: GPL-2.0
2config MIPS
3 bool
4 default y
5 select ARCH_32BIT_OFF_T if !64BIT
6 select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT
7 select ARCH_CLOCKSOURCE_DATA
8 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
9 select ARCH_HAS_UBSAN_SANITIZE_ALL
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_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU
16 select ARCH_WANT_IPC_PARSE_VERSION
17 select BUILDTIME_EXTABLE_SORT
18 select CLONE_BACKWARDS
19 select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
20 select CPU_PM if CPU_IDLE
21 select GENERIC_ATOMIC64 if !64BIT
22 select GENERIC_CLOCKEVENTS
23 select GENERIC_CMOS_UPDATE
24 select GENERIC_CPU_AUTOPROBE
25 select GENERIC_GETTIMEOFDAY
26 select GENERIC_IOMAP
27 select GENERIC_IRQ_PROBE
28 select GENERIC_IRQ_SHOW
29 select GENERIC_ISA_DMA if EISA
30 select GENERIC_LIB_ASHLDI3
31 select GENERIC_LIB_ASHRDI3
32 select GENERIC_LIB_CMPDI2
33 select GENERIC_LIB_LSHRDI3
34 select GENERIC_LIB_UCMPDI2
35 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
36 select GENERIC_SMP_IDLE_THREAD
37 select GENERIC_TIME_VSYSCALL
38 select GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT
39 select HANDLE_DOMAIN_IRQ
40 select HAVE_ARCH_COMPILER_H
41 select HAVE_ARCH_JUMP_LABEL
42 select HAVE_ARCH_KGDB
43 select HAVE_ARCH_MMAP_RND_BITS if MMU
44 select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
45 select HAVE_ARCH_SECCOMP_FILTER
46 select HAVE_ARCH_TRACEHOOK
47 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES
48 select HAVE_ASM_MODVERSIONS
49 select HAVE_EBPF_JIT if (!CPU_MICROMIPS)
50 select HAVE_CONTEXT_TRACKING
51 select HAVE_COPY_THREAD_TLS
52 select HAVE_C_RECORDMCOUNT
53 select HAVE_DEBUG_KMEMLEAK
54 select HAVE_DEBUG_STACKOVERFLOW
55 select HAVE_DMA_CONTIGUOUS
56 select HAVE_DYNAMIC_FTRACE
57 select HAVE_EXIT_THREAD
58 select HAVE_FAST_GUP
59 select HAVE_FTRACE_MCOUNT_RECORD
60 select HAVE_FUNCTION_GRAPH_TRACER
61 select HAVE_FUNCTION_TRACER
62 select HAVE_IDE
63 select HAVE_IOREMAP_PROT
64 select HAVE_IRQ_EXIT_ON_IRQ_STACK
65 select HAVE_IRQ_TIME_ACCOUNTING
66 select HAVE_KPROBES
67 select HAVE_KRETPROBES
68 select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
69 select HAVE_MEMBLOCK_NODE_MAP
70 select HAVE_MOD_ARCH_SPECIFIC
71 select HAVE_NMI
72 select HAVE_OPROFILE
73 select HAVE_PERF_EVENTS
74 select HAVE_REGS_AND_STACK_ACCESS_API
75 select HAVE_RSEQ
76 select HAVE_STACKPROTECTOR
77 select HAVE_SYSCALL_TRACEPOINTS
78 select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
79 select HAVE_GENERIC_VDSO
80 select IRQ_FORCED_THREADING
81 select ISA if EISA
82 select MODULES_USE_ELF_RELA if MODULES && 64BIT
83 select MODULES_USE_ELF_REL if MODULES
84 select PERF_USE_VMALLOC
85 select RTC_LIB
86 select SYSCTL_EXCEPTION_TRACE
87 select VIRT_TO_BUS
88 select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI)
89
90menu "Machine selection"
91
92choice
93 prompt "System type"
94 default MIPS_GENERIC
95
96config MIPS_GENERIC
97 bool "Generic board-agnostic MIPS kernel"
98 select BOOT_RAW
99 select BUILTIN_DTB
100 select CEVT_R4K
101 select CLKSRC_MIPS_GIC
102 select COMMON_CLK
103 select CPU_MIPSR2_IRQ_VI
104 select CPU_MIPSR2_IRQ_EI
105 select CSRC_R4K
106 select DMA_PERDEV_COHERENT
107 select HAVE_PCI
108 select IRQ_MIPS_CPU
109 select LIBFDT
110 select MIPS_AUTO_PFN_OFFSET
111 select MIPS_CPU_SCACHE
112 select MIPS_GIC
113 select MIPS_L1_CACHE_SHIFT_7
114 select NO_EXCEPT_FILL
115 select PCI_DRIVERS_GENERIC
116 select PINCTRL
117 select SMP_UP if SMP
118 select SWAP_IO_SPACE
119 select SYS_HAS_CPU_MIPS32_R1
120 select SYS_HAS_CPU_MIPS32_R2
121 select SYS_HAS_CPU_MIPS32_R6
122 select SYS_HAS_CPU_MIPS64_R1
123 select SYS_HAS_CPU_MIPS64_R2
124 select SYS_HAS_CPU_MIPS64_R6
125 select SYS_SUPPORTS_32BIT_KERNEL
126 select SYS_SUPPORTS_64BIT_KERNEL
127 select SYS_SUPPORTS_BIG_ENDIAN
128 select SYS_SUPPORTS_HIGHMEM
129 select SYS_SUPPORTS_LITTLE_ENDIAN
130 select SYS_SUPPORTS_MICROMIPS
131 select SYS_SUPPORTS_MIPS_CPS
132 select SYS_SUPPORTS_MIPS16
133 select SYS_SUPPORTS_MULTITHREADING
134 select SYS_SUPPORTS_RELOCATABLE
135 select SYS_SUPPORTS_SMARTMIPS
136 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
137 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
138 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
139 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
140 select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
141 select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
142 select USE_OF
143 select UHI_BOOT
144 help
145 Select this to build a kernel which aims to support multiple boards,
146 generally using a flattened device tree passed from the bootloader
147 using the boot protocol defined in the UHI (Unified Hosting
148 Interface) specification.
149
150config MIPS_ALCHEMY
151 bool "Alchemy processor based machines"
152 select PHYS_ADDR_T_64BIT
153 select CEVT_R4K
154 select CSRC_R4K
155 select IRQ_MIPS_CPU
156 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is
157 select SYS_HAS_CPU_MIPS32_R1
158 select SYS_SUPPORTS_32BIT_KERNEL
159 select SYS_SUPPORTS_APM_EMULATION
160 select GPIOLIB
161 select SYS_SUPPORTS_ZBOOT
162 select COMMON_CLK
163
164config AR7
165 bool "Texas Instruments AR7"
166 select BOOT_ELF32
167 select DMA_NONCOHERENT
168 select CEVT_R4K
169 select CSRC_R4K
170 select IRQ_MIPS_CPU
171 select NO_EXCEPT_FILL
172 select SWAP_IO_SPACE
173 select SYS_HAS_CPU_MIPS32_R1
174 select SYS_HAS_EARLY_PRINTK
175 select SYS_SUPPORTS_32BIT_KERNEL
176 select SYS_SUPPORTS_LITTLE_ENDIAN
177 select SYS_SUPPORTS_MIPS16
178 select SYS_SUPPORTS_ZBOOT_UART16550
179 select GPIOLIB
180 select VLYNQ
181 select HAVE_CLK
182 help
183 Support for the Texas Instruments AR7 System-on-a-Chip
184 family: TNETD7100, 7200 and 7300.
185
186config ATH25
187 bool "Atheros AR231x/AR531x SoC support"
188 select CEVT_R4K
189 select CSRC_R4K
190 select DMA_NONCOHERENT
191 select IRQ_MIPS_CPU
192 select IRQ_DOMAIN
193 select SYS_HAS_CPU_MIPS32_R1
194 select SYS_SUPPORTS_BIG_ENDIAN
195 select SYS_SUPPORTS_32BIT_KERNEL
196 select SYS_HAS_EARLY_PRINTK
197 help
198 Support for Atheros AR231x and Atheros AR531x based boards
199
200config ATH79
201 bool "Atheros AR71XX/AR724X/AR913X based boards"
202 select ARCH_HAS_RESET_CONTROLLER
203 select BOOT_RAW
204 select CEVT_R4K
205 select CSRC_R4K
206 select DMA_NONCOHERENT
207 select GPIOLIB
208 select PINCTRL
209 select HAVE_CLK
210 select COMMON_CLK
211 select CLKDEV_LOOKUP
212 select IRQ_MIPS_CPU
213 select SYS_HAS_CPU_MIPS32_R2
214 select SYS_HAS_EARLY_PRINTK
215 select SYS_SUPPORTS_32BIT_KERNEL
216 select SYS_SUPPORTS_BIG_ENDIAN
217 select SYS_SUPPORTS_MIPS16
218 select SYS_SUPPORTS_ZBOOT_UART_PROM
219 select USE_OF
220 select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM
221 help
222 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
223
224config BMIPS_GENERIC
225 bool "Broadcom Generic BMIPS kernel"
226 select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
227 select ARCH_HAS_PHYS_TO_DMA
228 select BOOT_RAW
229 select NO_EXCEPT_FILL
230 select USE_OF
231 select CEVT_R4K
232 select CSRC_R4K
233 select SYNC_R4K
234 select COMMON_CLK
235 select BCM6345_L1_IRQ
236 select BCM7038_L1_IRQ
237 select BCM7120_L2_IRQ
238 select BRCMSTB_L2_IRQ
239 select IRQ_MIPS_CPU
240 select DMA_NONCOHERENT
241 select SYS_SUPPORTS_32BIT_KERNEL
242 select SYS_SUPPORTS_LITTLE_ENDIAN
243 select SYS_SUPPORTS_BIG_ENDIAN
244 select SYS_SUPPORTS_HIGHMEM
245 select SYS_HAS_CPU_BMIPS32_3300
246 select SYS_HAS_CPU_BMIPS4350
247 select SYS_HAS_CPU_BMIPS4380
248 select SYS_HAS_CPU_BMIPS5000
249 select SWAP_IO_SPACE
250 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
251 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
252 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
253 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
254 select HARDIRQS_SW_RESEND
255 help
256 Build a generic DT-based kernel image that boots on select
257 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
258 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
259 must be set appropriately for your board.
260
261config BCM47XX
262 bool "Broadcom BCM47XX based boards"
263 select BOOT_RAW
264 select CEVT_R4K
265 select CSRC_R4K
266 select DMA_NONCOHERENT
267 select HAVE_PCI
268 select IRQ_MIPS_CPU
269 select SYS_HAS_CPU_MIPS32_R1
270 select NO_EXCEPT_FILL
271 select SYS_SUPPORTS_32BIT_KERNEL
272 select SYS_SUPPORTS_LITTLE_ENDIAN
273 select SYS_SUPPORTS_MIPS16
274 select SYS_SUPPORTS_ZBOOT
275 select SYS_HAS_EARLY_PRINTK
276 select USE_GENERIC_EARLY_PRINTK_8250
277 select GPIOLIB
278 select LEDS_GPIO_REGISTER
279 select BCM47XX_NVRAM
280 select BCM47XX_SPROM
281 select BCM47XX_SSB if !BCM47XX_BCMA
282 help
283 Support for BCM47XX based boards
284
285config BCM63XX
286 bool "Broadcom BCM63XX based boards"
287 select BOOT_RAW
288 select CEVT_R4K
289 select CSRC_R4K
290 select SYNC_R4K
291 select DMA_NONCOHERENT
292 select IRQ_MIPS_CPU
293 select SYS_SUPPORTS_32BIT_KERNEL
294 select SYS_SUPPORTS_BIG_ENDIAN
295 select SYS_HAS_EARLY_PRINTK
296 select SWAP_IO_SPACE
297 select GPIOLIB
298 select HAVE_CLK
299 select MIPS_L1_CACHE_SHIFT_4
300 select CLKDEV_LOOKUP
301 help
302 Support for BCM63XX based boards
303
304config MIPS_COBALT
305 bool "Cobalt Server"
306 select CEVT_R4K
307 select CSRC_R4K
308 select CEVT_GT641XX
309 select DMA_NONCOHERENT
310 select FORCE_PCI
311 select I8253
312 select I8259
313 select IRQ_MIPS_CPU
314 select IRQ_GT641XX
315 select PCI_GT64XXX_PCI0
316 select SYS_HAS_CPU_NEVADA
317 select SYS_HAS_EARLY_PRINTK
318 select SYS_SUPPORTS_32BIT_KERNEL
319 select SYS_SUPPORTS_64BIT_KERNEL
320 select SYS_SUPPORTS_LITTLE_ENDIAN
321 select USE_GENERIC_EARLY_PRINTK_8250
322
323config MACH_DECSTATION
324 bool "DECstations"
325 select BOOT_ELF32
326 select CEVT_DS1287
327 select CEVT_R4K if CPU_R4X00
328 select CSRC_IOASIC
329 select CSRC_R4K if CPU_R4X00
330 select CPU_DADDI_WORKAROUNDS if 64BIT
331 select CPU_R4000_WORKAROUNDS if 64BIT
332 select CPU_R4400_WORKAROUNDS if 64BIT
333 select DMA_NONCOHERENT
334 select NO_IOPORT_MAP
335 select IRQ_MIPS_CPU
336 select SYS_HAS_CPU_R3000
337 select SYS_HAS_CPU_R4X00
338 select SYS_SUPPORTS_32BIT_KERNEL
339 select SYS_SUPPORTS_64BIT_KERNEL
340 select SYS_SUPPORTS_LITTLE_ENDIAN
341 select SYS_SUPPORTS_128HZ
342 select SYS_SUPPORTS_256HZ
343 select SYS_SUPPORTS_1024HZ
344 select MIPS_L1_CACHE_SHIFT_4
345 help
346 This enables support for DEC's MIPS based workstations. For details
347 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
348 DECstation porting pages on <http://decstation.unix-ag.org/>.
349
350 If you have one of the following DECstation Models you definitely
351 want to choose R4xx0 for the CPU Type:
352
353 DECstation 5000/50
354 DECstation 5000/150
355 DECstation 5000/260
356 DECsystem 5900/260
357
358 otherwise choose R3000.
359
360config MACH_JAZZ
361 bool "Jazz family of machines"
362 select ARCH_MIGHT_HAVE_PC_PARPORT
363 select ARCH_MIGHT_HAVE_PC_SERIO
364 select FW_ARC
365 select FW_ARC32
366 select ARCH_MAY_HAVE_PC_FDC
367 select CEVT_R4K
368 select CSRC_R4K
369 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
370 select GENERIC_ISA_DMA
371 select HAVE_PCSPKR_PLATFORM
372 select IRQ_MIPS_CPU
373 select I8253
374 select I8259
375 select ISA
376 select SYS_HAS_CPU_R4X00
377 select SYS_SUPPORTS_32BIT_KERNEL
378 select SYS_SUPPORTS_64BIT_KERNEL
379 select SYS_SUPPORTS_100HZ
380 help
381 This a family of machines based on the MIPS R4030 chipset which was
382 used by several vendors to build RISC/os and Windows NT workstations.
383 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
384 Olivetti M700-10 workstations.
385
386config MACH_INGENIC
387 bool "Ingenic SoC based machines"
388 select SYS_SUPPORTS_32BIT_KERNEL
389 select SYS_SUPPORTS_LITTLE_ENDIAN
390 select SYS_SUPPORTS_ZBOOT_UART16550
391 select CPU_SUPPORTS_HUGEPAGES
392 select DMA_NONCOHERENT
393 select IRQ_MIPS_CPU
394 select PINCTRL
395 select GPIOLIB
396 select COMMON_CLK
397 select GENERIC_IRQ_CHIP
398 select BUILTIN_DTB if MIPS_NO_APPENDED_DTB
399 select USE_OF
400 select LIBFDT
401
402config LANTIQ
403 bool "Lantiq based platforms"
404 select DMA_NONCOHERENT
405 select IRQ_MIPS_CPU
406 select CEVT_R4K
407 select CSRC_R4K
408 select SYS_HAS_CPU_MIPS32_R1
409 select SYS_HAS_CPU_MIPS32_R2
410 select SYS_SUPPORTS_BIG_ENDIAN
411 select SYS_SUPPORTS_32BIT_KERNEL
412 select SYS_SUPPORTS_MIPS16
413 select SYS_SUPPORTS_MULTITHREADING
414 select SYS_SUPPORTS_VPE_LOADER
415 select SYS_HAS_EARLY_PRINTK
416 select GPIOLIB
417 select SWAP_IO_SPACE
418 select BOOT_RAW
419 select CLKDEV_LOOKUP
420 select USE_OF
421 select PINCTRL
422 select PINCTRL_LANTIQ
423 select ARCH_HAS_RESET_CONTROLLER
424 select RESET_CONTROLLER
425
426config LASAT
427 bool "LASAT Networks platforms"
428 select CEVT_R4K
429 select CRC32
430 select CSRC_R4K
431 select DMA_NONCOHERENT
432 select SYS_HAS_EARLY_PRINTK
433 select HAVE_PCI
434 select IRQ_MIPS_CPU
435 select PCI_GT64XXX_PCI0
436 select MIPS_NILE4
437 select R5000_CPU_SCACHE
438 select SYS_HAS_CPU_R5000
439 select SYS_SUPPORTS_32BIT_KERNEL
440 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
441 select SYS_SUPPORTS_LITTLE_ENDIAN
442
443config MACH_LOONGSON32
444 bool "Loongson-1 family of machines"
445 select SYS_SUPPORTS_ZBOOT
446 help
447 This enables support for the Loongson-1 family of machines.
448
449 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
450 the Institute of Computing Technology (ICT), Chinese Academy of
451 Sciences (CAS).
452
453config MACH_LOONGSON64
454 bool "Loongson-2/3 family of machines"
455 select SYS_SUPPORTS_ZBOOT
456 help
457 This enables the support of Loongson-2/3 family of machines.
458
459 Loongson-2 is a family of single-core CPUs and Loongson-3 is a
460 family of multi-core CPUs. They are both 64-bit general-purpose
461 MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute
462 of Computing Technology (ICT), Chinese Academy of Sciences (CAS)
463 in the People's Republic of China. The chief architect is Professor
464 Weiwu Hu.
465
466config MACH_PISTACHIO
467 bool "IMG Pistachio SoC based boards"
468 select BOOT_ELF32
469 select BOOT_RAW
470 select CEVT_R4K
471 select CLKSRC_MIPS_GIC
472 select COMMON_CLK
473 select CSRC_R4K
474 select DMA_NONCOHERENT
475 select GPIOLIB
476 select IRQ_MIPS_CPU
477 select LIBFDT
478 select MFD_SYSCON
479 select MIPS_CPU_SCACHE
480 select MIPS_GIC
481 select PINCTRL
482 select REGULATOR
483 select SYS_HAS_CPU_MIPS32_R2
484 select SYS_SUPPORTS_32BIT_KERNEL
485 select SYS_SUPPORTS_LITTLE_ENDIAN
486 select SYS_SUPPORTS_MIPS_CPS
487 select SYS_SUPPORTS_MULTITHREADING
488 select SYS_SUPPORTS_RELOCATABLE
489 select SYS_SUPPORTS_ZBOOT
490 select SYS_HAS_EARLY_PRINTK
491 select USE_GENERIC_EARLY_PRINTK_8250
492 select USE_OF
493 help
494 This enables support for the IMG Pistachio SoC platform.
495
496config MIPS_MALTA
497 bool "MIPS Malta board"
498 select ARCH_MAY_HAVE_PC_FDC
499 select ARCH_MIGHT_HAVE_PC_PARPORT
500 select ARCH_MIGHT_HAVE_PC_SERIO
501 select BOOT_ELF32
502 select BOOT_RAW
503 select BUILTIN_DTB
504 select CEVT_R4K
505 select CLKSRC_MIPS_GIC
506 select COMMON_CLK
507 select CSRC_R4K
508 select DMA_MAYBE_COHERENT
509 select GENERIC_ISA_DMA
510 select HAVE_PCSPKR_PLATFORM
511 select HAVE_PCI
512 select I8253
513 select I8259
514 select IRQ_MIPS_CPU
515 select LIBFDT
516 select MIPS_BONITO64
517 select MIPS_CPU_SCACHE
518 select MIPS_GIC
519 select MIPS_L1_CACHE_SHIFT_6
520 select MIPS_MSC
521 select PCI_GT64XXX_PCI0
522 select SMP_UP if SMP
523 select SWAP_IO_SPACE
524 select SYS_HAS_CPU_MIPS32_R1
525 select SYS_HAS_CPU_MIPS32_R2
526 select SYS_HAS_CPU_MIPS32_R3_5
527 select SYS_HAS_CPU_MIPS32_R5
528 select SYS_HAS_CPU_MIPS32_R6
529 select SYS_HAS_CPU_MIPS64_R1
530 select SYS_HAS_CPU_MIPS64_R2
531 select SYS_HAS_CPU_MIPS64_R6
532 select SYS_HAS_CPU_NEVADA
533 select SYS_HAS_CPU_RM7000
534 select SYS_SUPPORTS_32BIT_KERNEL
535 select SYS_SUPPORTS_64BIT_KERNEL
536 select SYS_SUPPORTS_BIG_ENDIAN
537 select SYS_SUPPORTS_HIGHMEM
538 select SYS_SUPPORTS_LITTLE_ENDIAN
539 select SYS_SUPPORTS_MICROMIPS
540 select SYS_SUPPORTS_MIPS16
541 select SYS_SUPPORTS_MIPS_CMP
542 select SYS_SUPPORTS_MIPS_CPS
543 select SYS_SUPPORTS_MULTITHREADING
544 select SYS_SUPPORTS_RELOCATABLE
545 select SYS_SUPPORTS_SMARTMIPS
546 select SYS_SUPPORTS_VPE_LOADER
547 select SYS_SUPPORTS_ZBOOT
548 select USE_OF
549 select ZONE_DMA32 if 64BIT
550 help
551 This enables support for the MIPS Technologies Malta evaluation
552 board.
553
554config MACH_PIC32
555 bool "Microchip PIC32 Family"
556 help
557 This enables support for the Microchip PIC32 family of platforms.
558
559 Microchip PIC32 is a family of general-purpose 32 bit MIPS core
560 microcontrollers.
561
562config NEC_MARKEINS
563 bool "NEC EMMA2RH Mark-eins board"
564 select SOC_EMMA2RH
565 select HAVE_PCI
566 help
567 This enables support for the NEC Electronics Mark-eins boards.
568
569config MACH_VR41XX
570 bool "NEC VR4100 series based machines"
571 select CEVT_R4K
572 select CSRC_R4K
573 select SYS_HAS_CPU_VR41XX
574 select SYS_SUPPORTS_MIPS16
575 select GPIOLIB
576
577config NXP_STB220
578 bool "NXP STB220 board"
579 select SOC_PNX833X
580 help
581 Support for NXP Semiconductors STB220 Development Board.
582
583config NXP_STB225
584 bool "NXP 225 board"
585 select SOC_PNX833X
586 select SOC_PNX8335
587 help
588 Support for NXP Semiconductors STB225 Development Board.
589
590config PMC_MSP
591 bool "PMC-Sierra MSP chipsets"
592 select CEVT_R4K
593 select CSRC_R4K
594 select DMA_NONCOHERENT
595 select SWAP_IO_SPACE
596 select NO_EXCEPT_FILL
597 select BOOT_RAW
598 select SYS_HAS_CPU_MIPS32_R1
599 select SYS_HAS_CPU_MIPS32_R2
600 select SYS_SUPPORTS_32BIT_KERNEL
601 select SYS_SUPPORTS_BIG_ENDIAN
602 select SYS_SUPPORTS_MIPS16
603 select IRQ_MIPS_CPU
604 select SERIAL_8250
605 select SERIAL_8250_CONSOLE
606 select USB_EHCI_BIG_ENDIAN_MMIO
607 select USB_EHCI_BIG_ENDIAN_DESC
608 help
609 This adds support for the PMC-Sierra family of Multi-Service
610 Processor System-On-A-Chips. These parts include a number
611 of integrated peripherals, interfaces and DSPs in addition to
612 a variety of MIPS cores.
613
614config RALINK
615 bool "Ralink based machines"
616 select CEVT_R4K
617 select CSRC_R4K
618 select BOOT_RAW
619 select DMA_NONCOHERENT
620 select IRQ_MIPS_CPU
621 select USE_OF
622 select SYS_HAS_CPU_MIPS32_R1
623 select SYS_HAS_CPU_MIPS32_R2
624 select SYS_SUPPORTS_32BIT_KERNEL
625 select SYS_SUPPORTS_LITTLE_ENDIAN
626 select SYS_SUPPORTS_MIPS16
627 select SYS_HAS_EARLY_PRINTK
628 select CLKDEV_LOOKUP
629 select ARCH_HAS_RESET_CONTROLLER
630 select RESET_CONTROLLER
631
632config SGI_IP22
633 bool "SGI IP22 (Indy/Indigo2)"
634 select FW_ARC
635 select FW_ARC32
636 select ARCH_MIGHT_HAVE_PC_SERIO
637 select BOOT_ELF32
638 select CEVT_R4K
639 select CSRC_R4K
640 select DEFAULT_SGI_PARTITION
641 select DMA_NONCOHERENT
642 select HAVE_EISA
643 select I8253
644 select I8259
645 select IP22_CPU_SCACHE
646 select IRQ_MIPS_CPU
647 select GENERIC_ISA_DMA_SUPPORT_BROKEN
648 select SGI_HAS_I8042
649 select SGI_HAS_INDYDOG
650 select SGI_HAS_HAL2
651 select SGI_HAS_SEEQ
652 select SGI_HAS_WD93
653 select SGI_HAS_ZILOG
654 select SWAP_IO_SPACE
655 select SYS_HAS_CPU_R4X00
656 select SYS_HAS_CPU_R5000
657 #
658 # Disable EARLY_PRINTK for now since it leads to overwritten prom
659 # memory during early boot on some machines.
660 #
661 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
662 # for a more details discussion
663 #
664 # select SYS_HAS_EARLY_PRINTK
665 select SYS_SUPPORTS_32BIT_KERNEL
666 select SYS_SUPPORTS_64BIT_KERNEL
667 select SYS_SUPPORTS_BIG_ENDIAN
668 select MIPS_L1_CACHE_SHIFT_7
669 help
670 This are the SGI Indy, Challenge S and Indigo2, as well as certain
671 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
672 that runs on these, say Y here.
673
674config SGI_IP27
675 bool "SGI IP27 (Origin200/2000)"
676 select ARCH_HAS_PHYS_TO_DMA
677 select FW_ARC
678 select FW_ARC64
679 select BOOT_ELF64
680 select DEFAULT_SGI_PARTITION
681 select SYS_HAS_EARLY_PRINTK
682 select HAVE_PCI
683 select IRQ_MIPS_CPU
684 select IRQ_DOMAIN_HIERARCHY
685 select NR_CPUS_DEFAULT_64
686 select PCI_DRIVERS_GENERIC
687 select PCI_XTALK_BRIDGE
688 select SYS_HAS_CPU_R10000
689 select SYS_SUPPORTS_64BIT_KERNEL
690 select SYS_SUPPORTS_BIG_ENDIAN
691 select SYS_SUPPORTS_NUMA
692 select SYS_SUPPORTS_SMP
693 select MIPS_L1_CACHE_SHIFT_7
694 help
695 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
696 workstations. To compile a Linux kernel that runs on these, say Y
697 here.
698
699config SGI_IP28
700 bool "SGI IP28 (Indigo2 R10k)"
701 select FW_ARC
702 select FW_ARC64
703 select ARCH_MIGHT_HAVE_PC_SERIO
704 select BOOT_ELF64
705 select CEVT_R4K
706 select CSRC_R4K
707 select DEFAULT_SGI_PARTITION
708 select DMA_NONCOHERENT
709 select GENERIC_ISA_DMA_SUPPORT_BROKEN
710 select IRQ_MIPS_CPU
711 select HAVE_EISA
712 select I8253
713 select I8259
714 select SGI_HAS_I8042
715 select SGI_HAS_INDYDOG
716 select SGI_HAS_HAL2
717 select SGI_HAS_SEEQ
718 select SGI_HAS_WD93
719 select SGI_HAS_ZILOG
720 select SWAP_IO_SPACE
721 select SYS_HAS_CPU_R10000
722 #
723 # Disable EARLY_PRINTK for now since it leads to overwritten prom
724 # memory during early boot on some machines.
725 #
726 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
727 # for a more details discussion
728 #
729 # select SYS_HAS_EARLY_PRINTK
730 select SYS_SUPPORTS_64BIT_KERNEL
731 select SYS_SUPPORTS_BIG_ENDIAN
732 select MIPS_L1_CACHE_SHIFT_7
733 help
734 This is the SGI Indigo2 with R10000 processor. To compile a Linux
735 kernel that runs on these, say Y here.
736
737config SGI_IP32
738 bool "SGI IP32 (O2)"
739 select ARCH_HAS_PHYS_TO_DMA
740 select FW_ARC
741 select FW_ARC32
742 select BOOT_ELF32
743 select CEVT_R4K
744 select CSRC_R4K
745 select DMA_NONCOHERENT
746 select HAVE_PCI
747 select IRQ_MIPS_CPU
748 select R5000_CPU_SCACHE
749 select RM7000_CPU_SCACHE
750 select SYS_HAS_CPU_R5000
751 select SYS_HAS_CPU_R10000 if BROKEN
752 select SYS_HAS_CPU_RM7000
753 select SYS_HAS_CPU_NEVADA
754 select SYS_SUPPORTS_64BIT_KERNEL
755 select SYS_SUPPORTS_BIG_ENDIAN
756 help
757 If you want this kernel to run on SGI O2 workstation, say Y here.
758
759config SIBYTE_CRHINE
760 bool "Sibyte BCM91120C-CRhine"
761 select BOOT_ELF32
762 select SIBYTE_BCM1120
763 select SWAP_IO_SPACE
764 select SYS_HAS_CPU_SB1
765 select SYS_SUPPORTS_BIG_ENDIAN
766 select SYS_SUPPORTS_LITTLE_ENDIAN
767
768config SIBYTE_CARMEL
769 bool "Sibyte BCM91120x-Carmel"
770 select BOOT_ELF32
771 select SIBYTE_BCM1120
772 select SWAP_IO_SPACE
773 select SYS_HAS_CPU_SB1
774 select SYS_SUPPORTS_BIG_ENDIAN
775 select SYS_SUPPORTS_LITTLE_ENDIAN
776
777config SIBYTE_CRHONE
778 bool "Sibyte BCM91125C-CRhone"
779 select BOOT_ELF32
780 select SIBYTE_BCM1125
781 select SWAP_IO_SPACE
782 select SYS_HAS_CPU_SB1
783 select SYS_SUPPORTS_BIG_ENDIAN
784 select SYS_SUPPORTS_HIGHMEM
785 select SYS_SUPPORTS_LITTLE_ENDIAN
786
787config SIBYTE_RHONE
788 bool "Sibyte BCM91125E-Rhone"
789 select BOOT_ELF32
790 select SIBYTE_BCM1125H
791 select SWAP_IO_SPACE
792 select SYS_HAS_CPU_SB1
793 select SYS_SUPPORTS_BIG_ENDIAN
794 select SYS_SUPPORTS_LITTLE_ENDIAN
795
796config SIBYTE_SWARM
797 bool "Sibyte BCM91250A-SWARM"
798 select BOOT_ELF32
799 select HAVE_PATA_PLATFORM
800 select SIBYTE_SB1250
801 select SWAP_IO_SPACE
802 select SYS_HAS_CPU_SB1
803 select SYS_SUPPORTS_BIG_ENDIAN
804 select SYS_SUPPORTS_HIGHMEM
805 select SYS_SUPPORTS_LITTLE_ENDIAN
806 select ZONE_DMA32 if 64BIT
807 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
808
809config SIBYTE_LITTLESUR
810 bool "Sibyte BCM91250C2-LittleSur"
811 select BOOT_ELF32
812 select HAVE_PATA_PLATFORM
813 select SIBYTE_SB1250
814 select SWAP_IO_SPACE
815 select SYS_HAS_CPU_SB1
816 select SYS_SUPPORTS_BIG_ENDIAN
817 select SYS_SUPPORTS_HIGHMEM
818 select SYS_SUPPORTS_LITTLE_ENDIAN
819 select ZONE_DMA32 if 64BIT
820
821config SIBYTE_SENTOSA
822 bool "Sibyte BCM91250E-Sentosa"
823 select BOOT_ELF32
824 select SIBYTE_SB1250
825 select SWAP_IO_SPACE
826 select SYS_HAS_CPU_SB1
827 select SYS_SUPPORTS_BIG_ENDIAN
828 select SYS_SUPPORTS_LITTLE_ENDIAN
829 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
830
831config SIBYTE_BIGSUR
832 bool "Sibyte BCM91480B-BigSur"
833 select BOOT_ELF32
834 select NR_CPUS_DEFAULT_4
835 select SIBYTE_BCM1x80
836 select SWAP_IO_SPACE
837 select SYS_HAS_CPU_SB1
838 select SYS_SUPPORTS_BIG_ENDIAN
839 select SYS_SUPPORTS_HIGHMEM
840 select SYS_SUPPORTS_LITTLE_ENDIAN
841 select ZONE_DMA32 if 64BIT
842 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
843
844config SNI_RM
845 bool "SNI RM200/300/400"
846 select FW_ARC if CPU_LITTLE_ENDIAN
847 select FW_ARC32 if CPU_LITTLE_ENDIAN
848 select FW_SNIPROM if CPU_BIG_ENDIAN
849 select ARCH_MAY_HAVE_PC_FDC
850 select ARCH_MIGHT_HAVE_PC_PARPORT
851 select ARCH_MIGHT_HAVE_PC_SERIO
852 select BOOT_ELF32
853 select CEVT_R4K
854 select CSRC_R4K
855 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
856 select DMA_NONCOHERENT
857 select GENERIC_ISA_DMA
858 select HAVE_EISA
859 select HAVE_PCSPKR_PLATFORM
860 select HAVE_PCI
861 select IRQ_MIPS_CPU
862 select I8253
863 select I8259
864 select ISA
865 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
866 select SYS_HAS_CPU_R4X00
867 select SYS_HAS_CPU_R5000
868 select SYS_HAS_CPU_R10000
869 select R5000_CPU_SCACHE
870 select SYS_HAS_EARLY_PRINTK
871 select SYS_SUPPORTS_32BIT_KERNEL
872 select SYS_SUPPORTS_64BIT_KERNEL
873 select SYS_SUPPORTS_BIG_ENDIAN
874 select SYS_SUPPORTS_HIGHMEM
875 select SYS_SUPPORTS_LITTLE_ENDIAN
876 help
877 The SNI RM200/300/400 are MIPS-based machines manufactured by
878 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
879 Technology and now in turn merged with Fujitsu. Say Y here to
880 support this machine type.
881
882config MACH_TX39XX
883 bool "Toshiba TX39 series based machines"
884
885config MACH_TX49XX
886 bool "Toshiba TX49 series based machines"
887
888config MIKROTIK_RB532
889 bool "Mikrotik RB532 boards"
890 select CEVT_R4K
891 select CSRC_R4K
892 select DMA_NONCOHERENT
893 select HAVE_PCI
894 select IRQ_MIPS_CPU
895 select SYS_HAS_CPU_MIPS32_R1
896 select SYS_SUPPORTS_32BIT_KERNEL
897 select SYS_SUPPORTS_LITTLE_ENDIAN
898 select SWAP_IO_SPACE
899 select BOOT_RAW
900 select GPIOLIB
901 select MIPS_L1_CACHE_SHIFT_4
902 help
903 Support the Mikrotik(tm) RouterBoard 532 series,
904 based on the IDT RC32434 SoC.
905
906config CAVIUM_OCTEON_SOC
907 bool "Cavium Networks Octeon SoC based boards"
908 select CEVT_R4K
909 select ARCH_HAS_PHYS_TO_DMA
910 select HAVE_RAPIDIO
911 select PHYS_ADDR_T_64BIT
912 select SYS_SUPPORTS_64BIT_KERNEL
913 select SYS_SUPPORTS_BIG_ENDIAN
914 select EDAC_SUPPORT
915 select EDAC_ATOMIC_SCRUB
916 select SYS_SUPPORTS_LITTLE_ENDIAN
917 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
918 select SYS_HAS_EARLY_PRINTK
919 select SYS_HAS_CPU_CAVIUM_OCTEON
920 select HAVE_PCI
921 select ZONE_DMA32
922 select HOLES_IN_ZONE
923 select GPIOLIB
924 select LIBFDT
925 select USE_OF
926 select ARCH_SPARSEMEM_ENABLE
927 select SYS_SUPPORTS_SMP
928 select NR_CPUS_DEFAULT_64
929 select MIPS_NR_CPU_NR_MAP_1024
930 select BUILTIN_DTB
931 select MTD_COMPLEX_MAPPINGS
932 select SWIOTLB
933 select SYS_SUPPORTS_RELOCATABLE
934 help
935 This option supports all of the Octeon reference boards from Cavium
936 Networks. It builds a kernel that dynamically determines the Octeon
937 CPU type and supports all known board reference implementations.
938 Some of the supported boards are:
939 EBT3000
940 EBH3000
941 EBH3100
942 Thunder
943 Kodama
944 Hikari
945 Say Y here for most Octeon reference boards.
946
947config NLM_XLR_BOARD
948 bool "Netlogic XLR/XLS based systems"
949 select BOOT_ELF32
950 select NLM_COMMON
951 select SYS_HAS_CPU_XLR
952 select SYS_SUPPORTS_SMP
953 select HAVE_PCI
954 select SWAP_IO_SPACE
955 select SYS_SUPPORTS_32BIT_KERNEL
956 select SYS_SUPPORTS_64BIT_KERNEL
957 select PHYS_ADDR_T_64BIT
958 select SYS_SUPPORTS_BIG_ENDIAN
959 select SYS_SUPPORTS_HIGHMEM
960 select NR_CPUS_DEFAULT_32
961 select CEVT_R4K
962 select CSRC_R4K
963 select IRQ_MIPS_CPU
964 select ZONE_DMA32 if 64BIT
965 select SYNC_R4K
966 select SYS_HAS_EARLY_PRINTK
967 select SYS_SUPPORTS_ZBOOT
968 select SYS_SUPPORTS_ZBOOT_UART16550
969 help
970 Support for systems based on Netlogic XLR and XLS processors.
971 Say Y here if you have a XLR or XLS based board.
972
973config NLM_XLP_BOARD
974 bool "Netlogic XLP based systems"
975 select BOOT_ELF32
976 select NLM_COMMON
977 select SYS_HAS_CPU_XLP
978 select SYS_SUPPORTS_SMP
979 select HAVE_PCI
980 select SYS_SUPPORTS_32BIT_KERNEL
981 select SYS_SUPPORTS_64BIT_KERNEL
982 select PHYS_ADDR_T_64BIT
983 select GPIOLIB
984 select SYS_SUPPORTS_BIG_ENDIAN
985 select SYS_SUPPORTS_LITTLE_ENDIAN
986 select SYS_SUPPORTS_HIGHMEM
987 select NR_CPUS_DEFAULT_32
988 select CEVT_R4K
989 select CSRC_R4K
990 select IRQ_MIPS_CPU
991 select ZONE_DMA32 if 64BIT
992 select SYNC_R4K
993 select SYS_HAS_EARLY_PRINTK
994 select USE_OF
995 select SYS_SUPPORTS_ZBOOT
996 select SYS_SUPPORTS_ZBOOT_UART16550
997 help
998 This board is based on Netlogic XLP Processor.
999 Say Y here if you have a XLP based board.
1000
1001config MIPS_PARAVIRT
1002 bool "Para-Virtualized guest system"
1003 select CEVT_R4K
1004 select CSRC_R4K
1005 select SYS_SUPPORTS_64BIT_KERNEL
1006 select SYS_SUPPORTS_32BIT_KERNEL
1007 select SYS_SUPPORTS_BIG_ENDIAN
1008 select SYS_SUPPORTS_SMP
1009 select NR_CPUS_DEFAULT_4
1010 select SYS_HAS_EARLY_PRINTK
1011 select SYS_HAS_CPU_MIPS32_R2
1012 select SYS_HAS_CPU_MIPS64_R2
1013 select SYS_HAS_CPU_CAVIUM_OCTEON
1014 select HAVE_PCI
1015 select SWAP_IO_SPACE
1016 help
1017 This option supports guest running under ????
1018
1019endchoice
1020
1021source "arch/mips/alchemy/Kconfig"
1022source "arch/mips/ath25/Kconfig"
1023source "arch/mips/ath79/Kconfig"
1024source "arch/mips/bcm47xx/Kconfig"
1025source "arch/mips/bcm63xx/Kconfig"
1026source "arch/mips/bmips/Kconfig"
1027source "arch/mips/generic/Kconfig"
1028source "arch/mips/jazz/Kconfig"
1029source "arch/mips/jz4740/Kconfig"
1030source "arch/mips/lantiq/Kconfig"
1031source "arch/mips/lasat/Kconfig"
1032source "arch/mips/pic32/Kconfig"
1033source "arch/mips/pistachio/Kconfig"
1034source "arch/mips/pmcs-msp71xx/Kconfig"
1035source "arch/mips/ralink/Kconfig"
1036source "arch/mips/sgi-ip27/Kconfig"
1037source "arch/mips/sibyte/Kconfig"
1038source "arch/mips/txx9/Kconfig"
1039source "arch/mips/vr41xx/Kconfig"
1040source "arch/mips/cavium-octeon/Kconfig"
1041source "arch/mips/loongson32/Kconfig"
1042source "arch/mips/loongson64/Kconfig"
1043source "arch/mips/netlogic/Kconfig"
1044source "arch/mips/paravirt/Kconfig"
1045
1046endmenu
1047
1048config GENERIC_HWEIGHT
1049 bool
1050 default y
1051
1052config GENERIC_CALIBRATE_DELAY
1053 bool
1054 default y
1055
1056config SCHED_OMIT_FRAME_POINTER
1057 bool
1058 default y
1059
1060#
1061# Select some configuration options automatically based on user selections.
1062#
1063config FW_ARC
1064 bool
1065
1066config ARCH_MAY_HAVE_PC_FDC
1067 bool
1068
1069config BOOT_RAW
1070 bool
1071
1072config CEVT_BCM1480
1073 bool
1074
1075config CEVT_DS1287
1076 bool
1077
1078config CEVT_GT641XX
1079 bool
1080
1081config CEVT_R4K
1082 bool
1083
1084config CEVT_SB1250
1085 bool
1086
1087config CEVT_TXX9
1088 bool
1089
1090config CSRC_BCM1480
1091 bool
1092
1093config CSRC_IOASIC
1094 bool
1095
1096config CSRC_R4K
1097 bool
1098
1099config CSRC_SB1250
1100 bool
1101
1102config MIPS_CLOCK_VSYSCALL
1103 def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1104
1105config GPIO_TXX9
1106 select GPIOLIB
1107 bool
1108
1109config FW_CFE
1110 bool
1111
1112config ARCH_SUPPORTS_UPROBES
1113 bool
1114
1115config DMA_MAYBE_COHERENT
1116 select ARCH_HAS_DMA_COHERENCE_H
1117 select DMA_NONCOHERENT
1118 bool
1119
1120config DMA_PERDEV_COHERENT
1121 bool
1122 select ARCH_HAS_SETUP_DMA_OPS
1123 select DMA_NONCOHERENT
1124
1125config DMA_NONCOHERENT
1126 bool
1127 #
1128 # MIPS allows mixing "slightly different" Cacheability and Coherency
1129 # Attribute bits. It is believed that the uncached access through
1130 # KSEG1 and the implementation specific "uncached accelerated" used
1131 # by pgprot_writcombine can be mixed, and the latter sometimes provides
1132 # significant advantages.
1133 #
1134 select ARCH_HAS_DMA_WRITE_COMBINE
1135 select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1136 select ARCH_HAS_UNCACHED_SEGMENT
1137 select NEED_DMA_MAP_STATE
1138 select ARCH_HAS_DMA_COHERENT_TO_PFN
1139 select DMA_NONCOHERENT_CACHE_SYNC
1140
1141config SYS_HAS_EARLY_PRINTK
1142 bool
1143
1144config SYS_SUPPORTS_HOTPLUG_CPU
1145 bool
1146
1147config MIPS_BONITO64
1148 bool
1149
1150config MIPS_MSC
1151 bool
1152
1153config MIPS_NILE4
1154 bool
1155
1156config SYNC_R4K
1157 bool
1158
1159config MIPS_MACHINE
1160 def_bool n
1161
1162config NO_IOPORT_MAP
1163 def_bool n
1164
1165config GENERIC_CSUM
1166 bool
1167 default y if !CPU_HAS_LOAD_STORE_LR
1168
1169config GENERIC_ISA_DMA
1170 bool
1171 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1172 select ISA_DMA_API
1173
1174config GENERIC_ISA_DMA_SUPPORT_BROKEN
1175 bool
1176 select GENERIC_ISA_DMA
1177
1178config ISA_DMA_API
1179 bool
1180
1181config HOLES_IN_ZONE
1182 bool
1183
1184config SYS_SUPPORTS_RELOCATABLE
1185 bool
1186 help
1187 Selected if the platform supports relocating the kernel.
1188 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1189 to allow access to command line and entropy sources.
1190
1191config MIPS_CBPF_JIT
1192 def_bool y
1193 depends on BPF_JIT && HAVE_CBPF_JIT
1194
1195config MIPS_EBPF_JIT
1196 def_bool y
1197 depends on BPF_JIT && HAVE_EBPF_JIT
1198
1199
1200#
1201# Endianness selection. Sufficiently obscure so many users don't know what to
1202# answer,so we try hard to limit the available choices. Also the use of a
1203# choice statement should be more obvious to the user.
1204#
1205choice
1206 prompt "Endianness selection"
1207 help
1208 Some MIPS machines can be configured for either little or big endian
1209 byte order. These modes require different kernels and a different
1210 Linux distribution. In general there is one preferred byteorder for a
1211 particular system but some systems are just as commonly used in the
1212 one or the other endianness.
1213
1214config CPU_BIG_ENDIAN
1215 bool "Big endian"
1216 depends on SYS_SUPPORTS_BIG_ENDIAN
1217
1218config CPU_LITTLE_ENDIAN
1219 bool "Little endian"
1220 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1221
1222endchoice
1223
1224config EXPORT_UASM
1225 bool
1226
1227config SYS_SUPPORTS_APM_EMULATION
1228 bool
1229
1230config SYS_SUPPORTS_BIG_ENDIAN
1231 bool
1232
1233config SYS_SUPPORTS_LITTLE_ENDIAN
1234 bool
1235
1236config SYS_SUPPORTS_HUGETLBFS
1237 bool
1238 depends on CPU_SUPPORTS_HUGEPAGES
1239 default y
1240
1241config MIPS_HUGE_TLB_SUPPORT
1242 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1243
1244config IRQ_CPU_RM7K
1245 bool
1246
1247config IRQ_MSP_SLP
1248 bool
1249
1250config IRQ_MSP_CIC
1251 bool
1252
1253config IRQ_TXX9
1254 bool
1255
1256config IRQ_GT641XX
1257 bool
1258
1259config PCI_GT64XXX_PCI0
1260 bool
1261
1262config PCI_XTALK_BRIDGE
1263 bool
1264
1265config NO_EXCEPT_FILL
1266 bool
1267
1268config SOC_EMMA2RH
1269 bool
1270 select CEVT_R4K
1271 select CSRC_R4K
1272 select DMA_NONCOHERENT
1273 select IRQ_MIPS_CPU
1274 select SWAP_IO_SPACE
1275 select SYS_HAS_CPU_R5500
1276 select SYS_SUPPORTS_32BIT_KERNEL
1277 select SYS_SUPPORTS_64BIT_KERNEL
1278 select SYS_SUPPORTS_BIG_ENDIAN
1279
1280config SOC_PNX833X
1281 bool
1282 select CEVT_R4K
1283 select CSRC_R4K
1284 select IRQ_MIPS_CPU
1285 select DMA_NONCOHERENT
1286 select SYS_HAS_CPU_MIPS32_R2
1287 select SYS_SUPPORTS_32BIT_KERNEL
1288 select SYS_SUPPORTS_LITTLE_ENDIAN
1289 select SYS_SUPPORTS_BIG_ENDIAN
1290 select SYS_SUPPORTS_MIPS16
1291 select CPU_MIPSR2_IRQ_VI
1292
1293config SOC_PNX8335
1294 bool
1295 select SOC_PNX833X
1296
1297config MIPS_SPRAM
1298 bool
1299
1300config SWAP_IO_SPACE
1301 bool
1302
1303config SGI_HAS_INDYDOG
1304 bool
1305
1306config SGI_HAS_HAL2
1307 bool
1308
1309config SGI_HAS_SEEQ
1310 bool
1311
1312config SGI_HAS_WD93
1313 bool
1314
1315config SGI_HAS_ZILOG
1316 bool
1317
1318config SGI_HAS_I8042
1319 bool
1320
1321config DEFAULT_SGI_PARTITION
1322 bool
1323
1324config FW_ARC32
1325 bool
1326
1327config FW_SNIPROM
1328 bool
1329
1330config BOOT_ELF32
1331 bool
1332
1333config MIPS_L1_CACHE_SHIFT_4
1334 bool
1335
1336config MIPS_L1_CACHE_SHIFT_5
1337 bool
1338
1339config MIPS_L1_CACHE_SHIFT_6
1340 bool
1341
1342config MIPS_L1_CACHE_SHIFT_7
1343 bool
1344
1345config MIPS_L1_CACHE_SHIFT
1346 int
1347 default "7" if MIPS_L1_CACHE_SHIFT_7
1348 default "6" if MIPS_L1_CACHE_SHIFT_6
1349 default "5" if MIPS_L1_CACHE_SHIFT_5
1350 default "4" if MIPS_L1_CACHE_SHIFT_4
1351 default "5"
1352
1353config HAVE_STD_PC_SERIAL_PORT
1354 bool
1355
1356config ARC_CONSOLE
1357 bool "ARC console support"
1358 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1359
1360config ARC_MEMORY
1361 bool
1362 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1363 default y
1364
1365config ARC_PROMLIB
1366 bool
1367 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1368 default y
1369
1370config FW_ARC64
1371 bool
1372
1373config BOOT_ELF64
1374 bool
1375
1376menu "CPU selection"
1377
1378choice
1379 prompt "CPU type"
1380 default CPU_R4X00
1381
1382config CPU_LOONGSON3
1383 bool "Loongson 3 CPU"
1384 depends on SYS_HAS_CPU_LOONGSON3
1385 select ARCH_HAS_PHYS_TO_DMA
1386 select CPU_SUPPORTS_64BIT_KERNEL
1387 select CPU_SUPPORTS_HIGHMEM
1388 select CPU_SUPPORTS_HUGEPAGES
1389 select CPU_HAS_LOAD_STORE_LR
1390 select WEAK_ORDERING
1391 select WEAK_REORDERING_BEYOND_LLSC
1392 select MIPS_PGD_C0_CONTEXT
1393 select MIPS_L1_CACHE_SHIFT_6
1394 select GPIOLIB
1395 select SWIOTLB
1396 help
1397 The Loongson 3 processor implements the MIPS64R2 instruction
1398 set with many extensions.
1399
1400config LOONGSON3_ENHANCEMENT
1401 bool "New Loongson 3 CPU Enhancements"
1402 default n
1403 select CPU_MIPSR2
1404 select CPU_HAS_PREFETCH
1405 depends on CPU_LOONGSON3
1406 help
1407 New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A
1408 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1409 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User
1410 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1411 Fast TLB refill support, etc.
1412
1413 This option enable those enhancements which are not probed at run
1414 time. If you want a generic kernel to run on all Loongson 3 machines,
1415 please say 'N' here. If you want a high-performance kernel to run on
1416 new Loongson 3 machines only, please say 'Y' here.
1417
1418config CPU_LOONGSON3_WORKAROUNDS
1419 bool "Old Loongson 3 LLSC Workarounds"
1420 default y if SMP
1421 depends on CPU_LOONGSON3
1422 help
1423 Loongson 3 processors have the llsc issues which require workarounds.
1424 Without workarounds the system may hang unexpectedly.
1425
1426 Newer Loongson 3 will fix these issues and no workarounds are needed.
1427 The workarounds have no significant side effect on them but may
1428 decrease the performance of the system so this option should be
1429 disabled unless the kernel is intended to be run on old systems.
1430
1431 If unsure, please say Y.
1432
1433config CPU_LOONGSON2E
1434 bool "Loongson 2E"
1435 depends on SYS_HAS_CPU_LOONGSON2E
1436 select CPU_LOONGSON2
1437 help
1438 The Loongson 2E processor implements the MIPS III instruction set
1439 with many extensions.
1440
1441 It has an internal FPGA northbridge, which is compatible to
1442 bonito64.
1443
1444config CPU_LOONGSON2F
1445 bool "Loongson 2F"
1446 depends on SYS_HAS_CPU_LOONGSON2F
1447 select CPU_LOONGSON2
1448 select GPIOLIB
1449 help
1450 The Loongson 2F processor implements the MIPS III instruction set
1451 with many extensions.
1452
1453 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1454 have a similar programming interface with FPGA northbridge used in
1455 Loongson2E.
1456
1457config CPU_LOONGSON1B
1458 bool "Loongson 1B"
1459 depends on SYS_HAS_CPU_LOONGSON1B
1460 select CPU_LOONGSON1
1461 select LEDS_GPIO_REGISTER
1462 help
1463 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1464 Release 1 instruction set and part of the MIPS32 Release 2
1465 instruction set.
1466
1467config CPU_LOONGSON1C
1468 bool "Loongson 1C"
1469 depends on SYS_HAS_CPU_LOONGSON1C
1470 select CPU_LOONGSON1
1471 select LEDS_GPIO_REGISTER
1472 help
1473 The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1474 Release 1 instruction set and part of the MIPS32 Release 2
1475 instruction set.
1476
1477config CPU_MIPS32_R1
1478 bool "MIPS32 Release 1"
1479 depends on SYS_HAS_CPU_MIPS32_R1
1480 select CPU_HAS_PREFETCH
1481 select CPU_HAS_LOAD_STORE_LR
1482 select CPU_SUPPORTS_32BIT_KERNEL
1483 select CPU_SUPPORTS_HIGHMEM
1484 help
1485 Choose this option to build a kernel for release 1 or later of the
1486 MIPS32 architecture. Most modern embedded systems with a 32-bit
1487 MIPS processor are based on a MIPS32 processor. If you know the
1488 specific type of processor in your system, choose those that one
1489 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1490 Release 2 of the MIPS32 architecture is available since several
1491 years so chances are you even have a MIPS32 Release 2 processor
1492 in which case you should choose CPU_MIPS32_R2 instead for better
1493 performance.
1494
1495config CPU_MIPS32_R2
1496 bool "MIPS32 Release 2"
1497 depends on SYS_HAS_CPU_MIPS32_R2
1498 select CPU_HAS_PREFETCH
1499 select CPU_HAS_LOAD_STORE_LR
1500 select CPU_SUPPORTS_32BIT_KERNEL
1501 select CPU_SUPPORTS_HIGHMEM
1502 select CPU_SUPPORTS_MSA
1503 select HAVE_KVM
1504 help
1505 Choose this option to build a kernel for release 2 or later of the
1506 MIPS32 architecture. Most modern embedded systems with a 32-bit
1507 MIPS processor are based on a MIPS32 processor. If you know the
1508 specific type of processor in your system, choose those that one
1509 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1510
1511config CPU_MIPS32_R6
1512 bool "MIPS32 Release 6"
1513 depends on SYS_HAS_CPU_MIPS32_R6
1514 select CPU_HAS_PREFETCH
1515 select CPU_SUPPORTS_32BIT_KERNEL
1516 select CPU_SUPPORTS_HIGHMEM
1517 select CPU_SUPPORTS_MSA
1518 select HAVE_KVM
1519 select MIPS_O32_FP64_SUPPORT
1520 help
1521 Choose this option to build a kernel for release 6 or later of the
1522 MIPS32 architecture. New MIPS processors, starting with the Warrior
1523 family, are based on a MIPS32r6 processor. If you own an older
1524 processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1525
1526config CPU_MIPS64_R1
1527 bool "MIPS64 Release 1"
1528 depends on SYS_HAS_CPU_MIPS64_R1
1529 select CPU_HAS_PREFETCH
1530 select CPU_HAS_LOAD_STORE_LR
1531 select CPU_SUPPORTS_32BIT_KERNEL
1532 select CPU_SUPPORTS_64BIT_KERNEL
1533 select CPU_SUPPORTS_HIGHMEM
1534 select CPU_SUPPORTS_HUGEPAGES
1535 help
1536 Choose this option to build a kernel for release 1 or later of the
1537 MIPS64 architecture. Many modern embedded systems with a 64-bit
1538 MIPS processor are based on a MIPS64 processor. If you know the
1539 specific type of processor in your system, choose those that one
1540 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1541 Release 2 of the MIPS64 architecture is available since several
1542 years so chances are you even have a MIPS64 Release 2 processor
1543 in which case you should choose CPU_MIPS64_R2 instead for better
1544 performance.
1545
1546config CPU_MIPS64_R2
1547 bool "MIPS64 Release 2"
1548 depends on SYS_HAS_CPU_MIPS64_R2
1549 select CPU_HAS_PREFETCH
1550 select CPU_HAS_LOAD_STORE_LR
1551 select CPU_SUPPORTS_32BIT_KERNEL
1552 select CPU_SUPPORTS_64BIT_KERNEL
1553 select CPU_SUPPORTS_HIGHMEM
1554 select CPU_SUPPORTS_HUGEPAGES
1555 select CPU_SUPPORTS_MSA
1556 select HAVE_KVM
1557 help
1558 Choose this option to build a kernel for release 2 or later of the
1559 MIPS64 architecture. Many modern embedded systems with a 64-bit
1560 MIPS processor are based on a MIPS64 processor. If you know the
1561 specific type of processor in your system, choose those that one
1562 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1563
1564config CPU_MIPS64_R6
1565 bool "MIPS64 Release 6"
1566 depends on SYS_HAS_CPU_MIPS64_R6
1567 select CPU_HAS_PREFETCH
1568 select CPU_SUPPORTS_32BIT_KERNEL
1569 select CPU_SUPPORTS_64BIT_KERNEL
1570 select CPU_SUPPORTS_HIGHMEM
1571 select CPU_SUPPORTS_HUGEPAGES
1572 select CPU_SUPPORTS_MSA
1573 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1574 select HAVE_KVM
1575 help
1576 Choose this option to build a kernel for release 6 or later of the
1577 MIPS64 architecture. New MIPS processors, starting with the Warrior
1578 family, are based on a MIPS64r6 processor. If you own an older
1579 processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1580
1581config CPU_R3000
1582 bool "R3000"
1583 depends on SYS_HAS_CPU_R3000
1584 select CPU_HAS_WB
1585 select CPU_HAS_LOAD_STORE_LR
1586 select CPU_R3K_TLB
1587 select CPU_SUPPORTS_32BIT_KERNEL
1588 select CPU_SUPPORTS_HIGHMEM
1589 help
1590 Please make sure to pick the right CPU type. Linux/MIPS is not
1591 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1592 *not* work on R4000 machines and vice versa. However, since most
1593 of the supported machines have an R4000 (or similar) CPU, R4x00
1594 might be a safe bet. If the resulting kernel does not work,
1595 try to recompile with R3000.
1596
1597config CPU_TX39XX
1598 bool "R39XX"
1599 depends on SYS_HAS_CPU_TX39XX
1600 select CPU_SUPPORTS_32BIT_KERNEL
1601 select CPU_HAS_LOAD_STORE_LR
1602 select CPU_R3K_TLB
1603
1604config CPU_VR41XX
1605 bool "R41xx"
1606 depends on SYS_HAS_CPU_VR41XX
1607 select CPU_SUPPORTS_32BIT_KERNEL
1608 select CPU_SUPPORTS_64BIT_KERNEL
1609 select CPU_HAS_LOAD_STORE_LR
1610 help
1611 The options selects support for the NEC VR4100 series of processors.
1612 Only choose this option if you have one of these processors as a
1613 kernel built with this option will not run on any other type of
1614 processor or vice versa.
1615
1616config CPU_R4X00
1617 bool "R4x00"
1618 depends on SYS_HAS_CPU_R4X00
1619 select CPU_SUPPORTS_32BIT_KERNEL
1620 select CPU_SUPPORTS_64BIT_KERNEL
1621 select CPU_SUPPORTS_HUGEPAGES
1622 select CPU_HAS_LOAD_STORE_LR
1623 help
1624 MIPS Technologies R4000-series processors other than 4300, including
1625 the R4000, R4400, R4600, and 4700.
1626
1627config CPU_TX49XX
1628 bool "R49XX"
1629 depends on SYS_HAS_CPU_TX49XX
1630 select CPU_HAS_PREFETCH
1631 select CPU_HAS_LOAD_STORE_LR
1632 select CPU_SUPPORTS_32BIT_KERNEL
1633 select CPU_SUPPORTS_64BIT_KERNEL
1634 select CPU_SUPPORTS_HUGEPAGES
1635
1636config CPU_R5000
1637 bool "R5000"
1638 depends on SYS_HAS_CPU_R5000
1639 select CPU_SUPPORTS_32BIT_KERNEL
1640 select CPU_SUPPORTS_64BIT_KERNEL
1641 select CPU_SUPPORTS_HUGEPAGES
1642 select CPU_HAS_LOAD_STORE_LR
1643 help
1644 MIPS Technologies R5000-series processors other than the Nevada.
1645
1646config CPU_R5500
1647 bool "R5500"
1648 depends on SYS_HAS_CPU_R5500
1649 select CPU_SUPPORTS_32BIT_KERNEL
1650 select CPU_SUPPORTS_64BIT_KERNEL
1651 select CPU_SUPPORTS_HUGEPAGES
1652 select CPU_HAS_LOAD_STORE_LR
1653 help
1654 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1655 instruction set.
1656
1657config CPU_NEVADA
1658 bool "RM52xx"
1659 depends on SYS_HAS_CPU_NEVADA
1660 select CPU_SUPPORTS_32BIT_KERNEL
1661 select CPU_SUPPORTS_64BIT_KERNEL
1662 select CPU_SUPPORTS_HUGEPAGES
1663 select CPU_HAS_LOAD_STORE_LR
1664 help
1665 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1666
1667config CPU_R10000
1668 bool "R10000"
1669 depends on SYS_HAS_CPU_R10000
1670 select CPU_HAS_PREFETCH
1671 select CPU_HAS_LOAD_STORE_LR
1672 select CPU_SUPPORTS_32BIT_KERNEL
1673 select CPU_SUPPORTS_64BIT_KERNEL
1674 select CPU_SUPPORTS_HIGHMEM
1675 select CPU_SUPPORTS_HUGEPAGES
1676 help
1677 MIPS Technologies R10000-series processors.
1678
1679config CPU_RM7000
1680 bool "RM7000"
1681 depends on SYS_HAS_CPU_RM7000
1682 select CPU_HAS_PREFETCH
1683 select CPU_HAS_LOAD_STORE_LR
1684 select CPU_SUPPORTS_32BIT_KERNEL
1685 select CPU_SUPPORTS_64BIT_KERNEL
1686 select CPU_SUPPORTS_HIGHMEM
1687 select CPU_SUPPORTS_HUGEPAGES
1688
1689config CPU_SB1
1690 bool "SB1"
1691 depends on SYS_HAS_CPU_SB1
1692 select CPU_HAS_LOAD_STORE_LR
1693 select CPU_SUPPORTS_32BIT_KERNEL
1694 select CPU_SUPPORTS_64BIT_KERNEL
1695 select CPU_SUPPORTS_HIGHMEM
1696 select CPU_SUPPORTS_HUGEPAGES
1697 select WEAK_ORDERING
1698
1699config CPU_CAVIUM_OCTEON
1700 bool "Cavium Octeon processor"
1701 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1702 select CPU_HAS_PREFETCH
1703 select CPU_HAS_LOAD_STORE_LR
1704 select CPU_SUPPORTS_64BIT_KERNEL
1705 select WEAK_ORDERING
1706 select CPU_SUPPORTS_HIGHMEM
1707 select CPU_SUPPORTS_HUGEPAGES
1708 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1709 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1710 select MIPS_L1_CACHE_SHIFT_7
1711 select HAVE_KVM
1712 help
1713 The Cavium Octeon processor is a highly integrated chip containing
1714 many ethernet hardware widgets for networking tasks. The processor
1715 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1716 Full details can be found at http://www.caviumnetworks.com.
1717
1718config CPU_BMIPS
1719 bool "Broadcom BMIPS"
1720 depends on SYS_HAS_CPU_BMIPS
1721 select CPU_MIPS32
1722 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1723 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1724 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1725 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1726 select CPU_SUPPORTS_32BIT_KERNEL
1727 select DMA_NONCOHERENT
1728 select IRQ_MIPS_CPU
1729 select SWAP_IO_SPACE
1730 select WEAK_ORDERING
1731 select CPU_SUPPORTS_HIGHMEM
1732 select CPU_HAS_PREFETCH
1733 select CPU_HAS_LOAD_STORE_LR
1734 select CPU_SUPPORTS_CPUFREQ
1735 select MIPS_EXTERNAL_TIMER
1736 help
1737 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1738
1739config CPU_XLR
1740 bool "Netlogic XLR SoC"
1741 depends on SYS_HAS_CPU_XLR
1742 select CPU_HAS_LOAD_STORE_LR
1743 select CPU_SUPPORTS_32BIT_KERNEL
1744 select CPU_SUPPORTS_64BIT_KERNEL
1745 select CPU_SUPPORTS_HIGHMEM
1746 select CPU_SUPPORTS_HUGEPAGES
1747 select WEAK_ORDERING
1748 select WEAK_REORDERING_BEYOND_LLSC
1749 help
1750 Netlogic Microsystems XLR/XLS processors.
1751
1752config CPU_XLP
1753 bool "Netlogic XLP SoC"
1754 depends on SYS_HAS_CPU_XLP
1755 select CPU_SUPPORTS_32BIT_KERNEL
1756 select CPU_SUPPORTS_64BIT_KERNEL
1757 select CPU_SUPPORTS_HIGHMEM
1758 select WEAK_ORDERING
1759 select WEAK_REORDERING_BEYOND_LLSC
1760 select CPU_HAS_PREFETCH
1761 select CPU_HAS_LOAD_STORE_LR
1762 select CPU_MIPSR2
1763 select CPU_SUPPORTS_HUGEPAGES
1764 select MIPS_ASID_BITS_VARIABLE
1765 help
1766 Netlogic Microsystems XLP processors.
1767endchoice
1768
1769config CPU_MIPS32_3_5_FEATURES
1770 bool "MIPS32 Release 3.5 Features"
1771 depends on SYS_HAS_CPU_MIPS32_R3_5
1772 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1773 help
1774 Choose this option to build a kernel for release 2 or later of the
1775 MIPS32 architecture including features from the 3.5 release such as
1776 support for Enhanced Virtual Addressing (EVA).
1777
1778config CPU_MIPS32_3_5_EVA
1779 bool "Enhanced Virtual Addressing (EVA)"
1780 depends on CPU_MIPS32_3_5_FEATURES
1781 select EVA
1782 default y
1783 help
1784 Choose this option if you want to enable the Enhanced Virtual
1785 Addressing (EVA) on your MIPS32 core (such as proAptiv).
1786 One of its primary benefits is an increase in the maximum size
1787 of lowmem (up to 3GB). If unsure, say 'N' here.
1788
1789config CPU_MIPS32_R5_FEATURES
1790 bool "MIPS32 Release 5 Features"
1791 depends on SYS_HAS_CPU_MIPS32_R5
1792 depends on CPU_MIPS32_R2
1793 help
1794 Choose this option to build a kernel for release 2 or later of the
1795 MIPS32 architecture including features from release 5 such as
1796 support for Extended Physical Addressing (XPA).
1797
1798config CPU_MIPS32_R5_XPA
1799 bool "Extended Physical Addressing (XPA)"
1800 depends on CPU_MIPS32_R5_FEATURES
1801 depends on !EVA
1802 depends on !PAGE_SIZE_4KB
1803 depends on SYS_SUPPORTS_HIGHMEM
1804 select XPA
1805 select HIGHMEM
1806 select PHYS_ADDR_T_64BIT
1807 default n
1808 help
1809 Choose this option if you want to enable the Extended Physical
1810 Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1811 benefit is to increase physical addressing equal to or greater
1812 than 40 bits. Note that this has the side effect of turning on
1813 64-bit addressing which in turn makes the PTEs 64-bit in size.
1814 If unsure, say 'N' here.
1815
1816if CPU_LOONGSON2F
1817config CPU_NOP_WORKAROUNDS
1818 bool
1819
1820config CPU_JUMP_WORKAROUNDS
1821 bool
1822
1823config CPU_LOONGSON2F_WORKAROUNDS
1824 bool "Loongson 2F Workarounds"
1825 default y
1826 select CPU_NOP_WORKAROUNDS
1827 select CPU_JUMP_WORKAROUNDS
1828 help
1829 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1830 require workarounds. Without workarounds the system may hang
1831 unexpectedly. For more information please refer to the gas
1832 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1833
1834 Loongson 2F03 and later have fixed these issues and no workarounds
1835 are needed. The workarounds have no significant side effect on them
1836 but may decrease the performance of the system so this option should
1837 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1838 systems.
1839
1840 If unsure, please say Y.
1841endif # CPU_LOONGSON2F
1842
1843config SYS_SUPPORTS_ZBOOT
1844 bool
1845 select HAVE_KERNEL_GZIP
1846 select HAVE_KERNEL_BZIP2
1847 select HAVE_KERNEL_LZ4
1848 select HAVE_KERNEL_LZMA
1849 select HAVE_KERNEL_LZO
1850 select HAVE_KERNEL_XZ
1851
1852config SYS_SUPPORTS_ZBOOT_UART16550
1853 bool
1854 select SYS_SUPPORTS_ZBOOT
1855
1856config SYS_SUPPORTS_ZBOOT_UART_PROM
1857 bool
1858 select SYS_SUPPORTS_ZBOOT
1859
1860config CPU_LOONGSON2
1861 bool
1862 select CPU_SUPPORTS_32BIT_KERNEL
1863 select CPU_SUPPORTS_64BIT_KERNEL
1864 select CPU_SUPPORTS_HIGHMEM
1865 select CPU_SUPPORTS_HUGEPAGES
1866 select ARCH_HAS_PHYS_TO_DMA
1867 select CPU_HAS_LOAD_STORE_LR
1868
1869config CPU_LOONGSON1
1870 bool
1871 select CPU_MIPS32
1872 select CPU_MIPSR2
1873 select CPU_HAS_PREFETCH
1874 select CPU_HAS_LOAD_STORE_LR
1875 select CPU_SUPPORTS_32BIT_KERNEL
1876 select CPU_SUPPORTS_HIGHMEM
1877 select CPU_SUPPORTS_CPUFREQ
1878
1879config CPU_BMIPS32_3300
1880 select SMP_UP if SMP
1881 bool
1882
1883config CPU_BMIPS4350
1884 bool
1885 select SYS_SUPPORTS_SMP
1886 select SYS_SUPPORTS_HOTPLUG_CPU
1887
1888config CPU_BMIPS4380
1889 bool
1890 select MIPS_L1_CACHE_SHIFT_6
1891 select SYS_SUPPORTS_SMP
1892 select SYS_SUPPORTS_HOTPLUG_CPU
1893 select CPU_HAS_RIXI
1894
1895config CPU_BMIPS5000
1896 bool
1897 select MIPS_CPU_SCACHE
1898 select MIPS_L1_CACHE_SHIFT_7
1899 select SYS_SUPPORTS_SMP
1900 select SYS_SUPPORTS_HOTPLUG_CPU
1901 select CPU_HAS_RIXI
1902
1903config SYS_HAS_CPU_LOONGSON3
1904 bool
1905 select CPU_SUPPORTS_CPUFREQ
1906 select CPU_HAS_RIXI
1907
1908config SYS_HAS_CPU_LOONGSON2E
1909 bool
1910
1911config SYS_HAS_CPU_LOONGSON2F
1912 bool
1913 select CPU_SUPPORTS_CPUFREQ
1914 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1915 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1916
1917config SYS_HAS_CPU_LOONGSON1B
1918 bool
1919
1920config SYS_HAS_CPU_LOONGSON1C
1921 bool
1922
1923config SYS_HAS_CPU_MIPS32_R1
1924 bool
1925
1926config SYS_HAS_CPU_MIPS32_R2
1927 bool
1928
1929config SYS_HAS_CPU_MIPS32_R3_5
1930 bool
1931
1932config SYS_HAS_CPU_MIPS32_R5
1933 bool
1934 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1935
1936config SYS_HAS_CPU_MIPS32_R6
1937 bool
1938 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1939
1940config SYS_HAS_CPU_MIPS64_R1
1941 bool
1942
1943config SYS_HAS_CPU_MIPS64_R2
1944 bool
1945
1946config SYS_HAS_CPU_MIPS64_R6
1947 bool
1948 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1949
1950config SYS_HAS_CPU_R3000
1951 bool
1952
1953config SYS_HAS_CPU_TX39XX
1954 bool
1955
1956config SYS_HAS_CPU_VR41XX
1957 bool
1958
1959config SYS_HAS_CPU_R4X00
1960 bool
1961
1962config SYS_HAS_CPU_TX49XX
1963 bool
1964
1965config SYS_HAS_CPU_R5000
1966 bool
1967
1968config SYS_HAS_CPU_R5500
1969 bool
1970
1971config SYS_HAS_CPU_NEVADA
1972 bool
1973
1974config SYS_HAS_CPU_R10000
1975 bool
1976 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
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 select ARCH_HAS_SYNC_DMA_FOR_CPU
2006
2007config SYS_HAS_CPU_XLR
2008 bool
2009
2010config SYS_HAS_CPU_XLP
2011 bool
2012
2013#
2014# CPU may reorder R->R, R->W, W->R, W->W
2015# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
2016#
2017config WEAK_ORDERING
2018 bool
2019
2020#
2021# CPU may reorder reads and writes beyond LL/SC
2022# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
2023#
2024config WEAK_REORDERING_BEYOND_LLSC
2025 bool
2026endmenu
2027
2028#
2029# These two indicate any level of the MIPS32 and MIPS64 architecture
2030#
2031config CPU_MIPS32
2032 bool
2033 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
2034
2035config CPU_MIPS64
2036 bool
2037 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
2038
2039#
2040# These indicate the revision of the architecture
2041#
2042config CPU_MIPSR1
2043 bool
2044 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
2045
2046config CPU_MIPSR2
2047 bool
2048 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2049 select CPU_HAS_RIXI
2050 select MIPS_SPRAM
2051
2052config CPU_MIPSR6
2053 bool
2054 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2055 select CPU_HAS_RIXI
2056 select HAVE_ARCH_BITREVERSE
2057 select MIPS_ASID_BITS_VARIABLE
2058 select MIPS_CRC_SUPPORT
2059 select MIPS_SPRAM
2060
2061config TARGET_ISA_REV
2062 int
2063 default 1 if CPU_MIPSR1
2064 default 2 if CPU_MIPSR2
2065 default 6 if CPU_MIPSR6
2066 default 0
2067 help
2068 Reflects the ISA revision being targeted by the kernel build. This
2069 is effectively the Kconfig equivalent of MIPS_ISA_REV.
2070
2071config EVA
2072 bool
2073
2074config XPA
2075 bool
2076
2077config SYS_SUPPORTS_32BIT_KERNEL
2078 bool
2079config SYS_SUPPORTS_64BIT_KERNEL
2080 bool
2081config CPU_SUPPORTS_32BIT_KERNEL
2082 bool
2083config CPU_SUPPORTS_64BIT_KERNEL
2084 bool
2085config CPU_SUPPORTS_CPUFREQ
2086 bool
2087config CPU_SUPPORTS_ADDRWINCFG
2088 bool
2089config CPU_SUPPORTS_HUGEPAGES
2090 bool
2091 depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA))
2092config CPU_SUPPORTS_UNCACHED_ACCELERATED
2093 bool
2094config MIPS_PGD_C0_CONTEXT
2095 bool
2096 default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2097
2098#
2099# Set to y for ptrace access to watch registers.
2100#
2101config HARDWARE_WATCHPOINTS
2102 bool
2103 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2104
2105menu "Kernel type"
2106
2107choice
2108 prompt "Kernel code model"
2109 help
2110 You should only select this option if you have a workload that
2111 actually benefits from 64-bit processing or if your machine has
2112 large memory. You will only be presented a single option in this
2113 menu if your system does not support both 32-bit and 64-bit kernels.
2114
2115config 32BIT
2116 bool "32-bit kernel"
2117 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2118 select TRAD_SIGNALS
2119 help
2120 Select this option if you want to build a 32-bit kernel.
2121
2122config 64BIT
2123 bool "64-bit kernel"
2124 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2125 help
2126 Select this option if you want to build a 64-bit kernel.
2127
2128endchoice
2129
2130config KVM_GUEST
2131 bool "KVM Guest Kernel"
2132 depends on BROKEN_ON_SMP
2133 help
2134 Select this option if building a guest kernel for KVM (Trap & Emulate)
2135 mode.
2136
2137config KVM_GUEST_TIMER_FREQ
2138 int "Count/Compare Timer Frequency (MHz)"
2139 depends on KVM_GUEST
2140 default 100
2141 help
2142 Set this to non-zero if building a guest kernel for KVM to skip RTC
2143 emulation when determining guest CPU Frequency. Instead, the guest's
2144 timer frequency is specified directly.
2145
2146config MIPS_VA_BITS_48
2147 bool "48 bits virtual memory"
2148 depends on 64BIT
2149 help
2150 Support a maximum at least 48 bits of application virtual
2151 memory. Default is 40 bits or less, depending on the CPU.
2152 For page sizes 16k and above, this option results in a small
2153 memory overhead for page tables. For 4k page size, a fourth
2154 level of page tables is added which imposes both a memory
2155 overhead as well as slower TLB fault handling.
2156
2157 If unsure, say N.
2158
2159choice
2160 prompt "Kernel page size"
2161 default PAGE_SIZE_4KB
2162
2163config PAGE_SIZE_4KB
2164 bool "4kB"
2165 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
2166 help
2167 This option select the standard 4kB Linux page size. On some
2168 R3000-family processors this is the only available page size. Using
2169 4kB page size will minimize memory consumption and is therefore
2170 recommended for low memory systems.
2171
2172config PAGE_SIZE_8KB
2173 bool "8kB"
2174 depends on CPU_CAVIUM_OCTEON
2175 depends on !MIPS_VA_BITS_48
2176 help
2177 Using 8kB page size will result in higher performance kernel at
2178 the price of higher memory consumption. This option is available
2179 only on cnMIPS processors. Note that you will need a suitable Linux
2180 distribution to support this.
2181
2182config PAGE_SIZE_16KB
2183 bool "16kB"
2184 depends on !CPU_R3000 && !CPU_TX39XX
2185 help
2186 Using 16kB page size will result in higher performance kernel at
2187 the price of higher memory consumption. This option is available on
2188 all non-R3000 family processors. Note that you will need a suitable
2189 Linux distribution to support this.
2190
2191config PAGE_SIZE_32KB
2192 bool "32kB"
2193 depends on CPU_CAVIUM_OCTEON
2194 depends on !MIPS_VA_BITS_48
2195 help
2196 Using 32kB page size will result in higher performance kernel at
2197 the price of higher memory consumption. This option is available
2198 only on cnMIPS cores. Note that you will need a suitable Linux
2199 distribution to support this.
2200
2201config PAGE_SIZE_64KB
2202 bool "64kB"
2203 depends on !CPU_R3000 && !CPU_TX39XX
2204 help
2205 Using 64kB page size will result in higher performance kernel at
2206 the price of higher memory consumption. This option is available on
2207 all non-R3000 family processor. Not that at the time of this
2208 writing this option is still high experimental.
2209
2210endchoice
2211
2212config FORCE_MAX_ZONEORDER
2213 int "Maximum zone order"
2214 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2215 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2216 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2217 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2218 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2219 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2220 range 11 64
2221 default "11"
2222 help
2223 The kernel memory allocator divides physically contiguous memory
2224 blocks into "zones", where each zone is a power of two number of
2225 pages. This option selects the largest power of two that the kernel
2226 keeps in the memory allocator. If you need to allocate very large
2227 blocks of physically contiguous memory, then you may need to
2228 increase this value.
2229
2230 This config option is actually maximum order plus one. For example,
2231 a value of 11 means that the largest free memory block is 2^10 pages.
2232
2233 The page size is not necessarily 4KB. Keep this in mind
2234 when choosing a value for this option.
2235
2236config BOARD_SCACHE
2237 bool
2238
2239config IP22_CPU_SCACHE
2240 bool
2241 select BOARD_SCACHE
2242
2243#
2244# Support for a MIPS32 / MIPS64 style S-caches
2245#
2246config MIPS_CPU_SCACHE
2247 bool
2248 select BOARD_SCACHE
2249
2250config R5000_CPU_SCACHE
2251 bool
2252 select BOARD_SCACHE
2253
2254config RM7000_CPU_SCACHE
2255 bool
2256 select BOARD_SCACHE
2257
2258config SIBYTE_DMA_PAGEOPS
2259 bool "Use DMA to clear/copy pages"
2260 depends on CPU_SB1
2261 help
2262 Instead of using the CPU to zero and copy pages, use a Data Mover
2263 channel. These DMA channels are otherwise unused by the standard
2264 SiByte Linux port. Seems to give a small performance benefit.
2265
2266config CPU_HAS_PREFETCH
2267 bool
2268
2269config CPU_GENERIC_DUMP_TLB
2270 bool
2271 default y if !(CPU_R3000 || CPU_TX39XX)
2272
2273config MIPS_FP_SUPPORT
2274 bool "Floating Point support" if EXPERT
2275 default y
2276 help
2277 Select y to include support for floating point in the kernel
2278 including initialization of FPU hardware, FP context save & restore
2279 and emulation of an FPU where necessary. Without this support any
2280 userland program attempting to use floating point instructions will
2281 receive a SIGILL.
2282
2283 If you know that your userland will not attempt to use floating point
2284 instructions then you can say n here to shrink the kernel a little.
2285
2286 If unsure, say y.
2287
2288config CPU_R2300_FPU
2289 bool
2290 depends on MIPS_FP_SUPPORT
2291 default y if CPU_R3000 || CPU_TX39XX
2292
2293config CPU_R3K_TLB
2294 bool
2295
2296config CPU_R4K_FPU
2297 bool
2298 depends on MIPS_FP_SUPPORT
2299 default y if !CPU_R2300_FPU
2300
2301config CPU_R4K_CACHE_TLB
2302 bool
2303 default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON)
2304
2305config MIPS_MT_SMP
2306 bool "MIPS MT SMP support (1 TC on each available VPE)"
2307 default y
2308 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2309 select CPU_MIPSR2_IRQ_VI
2310 select CPU_MIPSR2_IRQ_EI
2311 select SYNC_R4K
2312 select MIPS_MT
2313 select SMP
2314 select SMP_UP
2315 select SYS_SUPPORTS_SMP
2316 select SYS_SUPPORTS_SCHED_SMT
2317 select MIPS_PERF_SHARED_TC_COUNTERS
2318 help
2319 This is a kernel model which is known as SMVP. This is supported
2320 on cores with the MT ASE and uses the available VPEs to implement
2321 virtual processors which supports SMP. This is equivalent to the
2322 Intel Hyperthreading feature. For further information go to
2323 <http://www.imgtec.com/mips/mips-multithreading.asp>.
2324
2325config MIPS_MT
2326 bool
2327
2328config SCHED_SMT
2329 bool "SMT (multithreading) scheduler support"
2330 depends on SYS_SUPPORTS_SCHED_SMT
2331 default n
2332 help
2333 SMT scheduler support improves the CPU scheduler's decision making
2334 when dealing with MIPS MT enabled cores at a cost of slightly
2335 increased overhead in some places. If unsure say N here.
2336
2337config SYS_SUPPORTS_SCHED_SMT
2338 bool
2339
2340config SYS_SUPPORTS_MULTITHREADING
2341 bool
2342
2343config MIPS_MT_FPAFF
2344 bool "Dynamic FPU affinity for FP-intensive threads"
2345 default y
2346 depends on MIPS_MT_SMP
2347
2348config MIPSR2_TO_R6_EMULATOR
2349 bool "MIPS R2-to-R6 emulator"
2350 depends on CPU_MIPSR6
2351 depends on MIPS_FP_SUPPORT
2352 default y
2353 help
2354 Choose this option if you want to run non-R6 MIPS userland code.
2355 Even if you say 'Y' here, the emulator will still be disabled by
2356 default. You can enable it using the 'mipsr2emu' kernel option.
2357 The only reason this is a build-time option is to save ~14K from the
2358 final kernel image.
2359
2360config SYS_SUPPORTS_VPE_LOADER
2361 bool
2362 depends on SYS_SUPPORTS_MULTITHREADING
2363 help
2364 Indicates that the platform supports the VPE loader, and provides
2365 physical_memsize.
2366
2367config MIPS_VPE_LOADER
2368 bool "VPE loader support."
2369 depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2370 select CPU_MIPSR2_IRQ_VI
2371 select CPU_MIPSR2_IRQ_EI
2372 select MIPS_MT
2373 help
2374 Includes a loader for loading an elf relocatable object
2375 onto another VPE and running it.
2376
2377config MIPS_VPE_LOADER_CMP
2378 bool
2379 default "y"
2380 depends on MIPS_VPE_LOADER && MIPS_CMP
2381
2382config MIPS_VPE_LOADER_MT
2383 bool
2384 default "y"
2385 depends on MIPS_VPE_LOADER && !MIPS_CMP
2386
2387config MIPS_VPE_LOADER_TOM
2388 bool "Load VPE program into memory hidden from linux"
2389 depends on MIPS_VPE_LOADER
2390 default y
2391 help
2392 The loader can use memory that is present but has been hidden from
2393 Linux using the kernel command line option "mem=xxMB". It's up to
2394 you to ensure the amount you put in the option and the space your
2395 program requires is less or equal to the amount physically present.
2396
2397config MIPS_VPE_APSP_API
2398 bool "Enable support for AP/SP API (RTLX)"
2399 depends on MIPS_VPE_LOADER
2400
2401config MIPS_VPE_APSP_API_CMP
2402 bool
2403 default "y"
2404 depends on MIPS_VPE_APSP_API && MIPS_CMP
2405
2406config MIPS_VPE_APSP_API_MT
2407 bool
2408 default "y"
2409 depends on MIPS_VPE_APSP_API && !MIPS_CMP
2410
2411config MIPS_CMP
2412 bool "MIPS CMP framework support (DEPRECATED)"
2413 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2414 select SMP
2415 select SYNC_R4K
2416 select SYS_SUPPORTS_SMP
2417 select WEAK_ORDERING
2418 default n
2419 help
2420 Select this if you are using a bootloader which implements the "CMP
2421 framework" protocol (ie. YAMON) and want your kernel to make use of
2422 its ability to start secondary CPUs.
2423
2424 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2425 instead of this.
2426
2427config MIPS_CPS
2428 bool "MIPS Coherent Processing System support"
2429 depends on SYS_SUPPORTS_MIPS_CPS
2430 select MIPS_CM
2431 select MIPS_CPS_PM if HOTPLUG_CPU
2432 select SMP
2433 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2434 select SYS_SUPPORTS_HOTPLUG_CPU
2435 select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2436 select SYS_SUPPORTS_SMP
2437 select WEAK_ORDERING
2438 help
2439 Select this if you wish to run an SMP kernel across multiple cores
2440 within a MIPS Coherent Processing System. When this option is
2441 enabled the kernel will probe for other cores and boot them with
2442 no external assistance. It is safe to enable this when hardware
2443 support is unavailable.
2444
2445config MIPS_CPS_PM
2446 depends on MIPS_CPS
2447 bool
2448
2449config MIPS_CM
2450 bool
2451 select MIPS_CPC
2452
2453config MIPS_CPC
2454 bool
2455
2456config SB1_PASS_2_WORKAROUNDS
2457 bool
2458 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2459 default y
2460
2461config SB1_PASS_2_1_WORKAROUNDS
2462 bool
2463 depends on CPU_SB1 && CPU_SB1_PASS_2
2464 default y
2465
2466choice
2467 prompt "SmartMIPS or microMIPS ASE support"
2468
2469config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2470 bool "None"
2471 help
2472 Select this if you want neither microMIPS nor SmartMIPS support
2473
2474config CPU_HAS_SMARTMIPS
2475 depends on SYS_SUPPORTS_SMARTMIPS
2476 bool "SmartMIPS"
2477 help
2478 SmartMIPS is a extension of the MIPS32 architecture aimed at
2479 increased security at both hardware and software level for
2480 smartcards. Enabling this option will allow proper use of the
2481 SmartMIPS instructions by Linux applications. However a kernel with
2482 this option will not work on a MIPS core without SmartMIPS core. If
2483 you don't know you probably don't have SmartMIPS and should say N
2484 here.
2485
2486config CPU_MICROMIPS
2487 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2488 bool "microMIPS"
2489 help
2490 When this option is enabled the kernel will be built using the
2491 microMIPS ISA
2492
2493endchoice
2494
2495config CPU_HAS_MSA
2496 bool "Support for the MIPS SIMD Architecture"
2497 depends on CPU_SUPPORTS_MSA
2498 depends on MIPS_FP_SUPPORT
2499 depends on 64BIT || MIPS_O32_FP64_SUPPORT
2500 help
2501 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2502 and a set of SIMD instructions to operate on them. When this option
2503 is enabled the kernel will support allocating & switching MSA
2504 vector register contexts. If you know that your kernel will only be
2505 running on CPUs which do not support MSA or that your userland will
2506 not be making use of it then you may wish to say N here to reduce
2507 the size & complexity of your kernel.
2508
2509 If unsure, say Y.
2510
2511config CPU_HAS_WB
2512 bool
2513
2514config XKS01
2515 bool
2516
2517config CPU_HAS_RIXI
2518 bool
2519
2520config CPU_HAS_LOAD_STORE_LR
2521 bool
2522 help
2523 CPU has support for unaligned load and store instructions:
2524 LWL, LWR, SWL, SWR (Load/store word left/right).
2525 LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit systems).
2526
2527#
2528# Vectored interrupt mode is an R2 feature
2529#
2530config CPU_MIPSR2_IRQ_VI
2531 bool
2532
2533#
2534# Extended interrupt mode is an R2 feature
2535#
2536config CPU_MIPSR2_IRQ_EI
2537 bool
2538
2539config CPU_HAS_SYNC
2540 bool
2541 depends on !CPU_R3000
2542 default y
2543
2544#
2545# CPU non-features
2546#
2547config CPU_DADDI_WORKAROUNDS
2548 bool
2549
2550config CPU_R4000_WORKAROUNDS
2551 bool
2552 select CPU_R4400_WORKAROUNDS
2553
2554config CPU_R4400_WORKAROUNDS
2555 bool
2556
2557config MIPS_ASID_SHIFT
2558 int
2559 default 6 if CPU_R3000 || CPU_TX39XX
2560 default 0
2561
2562config MIPS_ASID_BITS
2563 int
2564 default 0 if MIPS_ASID_BITS_VARIABLE
2565 default 6 if CPU_R3000 || CPU_TX39XX
2566 default 8
2567
2568config MIPS_ASID_BITS_VARIABLE
2569 bool
2570
2571config MIPS_CRC_SUPPORT
2572 bool
2573
2574#
2575# - Highmem only makes sense for the 32-bit kernel.
2576# - The current highmem code will only work properly on physically indexed
2577# caches such as R3000, SB1, R7000 or those that look like they're virtually
2578# indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2579# moment we protect the user and offer the highmem option only on machines
2580# where it's known to be safe. This will not offer highmem on a few systems
2581# such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2582# indexed CPUs but we're playing safe.
2583# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2584# know they might have memory configurations that could make use of highmem
2585# support.
2586#
2587config HIGHMEM
2588 bool "High Memory Support"
2589 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2590
2591config CPU_SUPPORTS_HIGHMEM
2592 bool
2593
2594config SYS_SUPPORTS_HIGHMEM
2595 bool
2596
2597config SYS_SUPPORTS_SMARTMIPS
2598 bool
2599
2600config SYS_SUPPORTS_MICROMIPS
2601 bool
2602
2603config SYS_SUPPORTS_MIPS16
2604 bool
2605 help
2606 This option must be set if a kernel might be executed on a MIPS16-
2607 enabled CPU even if MIPS16 is not actually being used. In other
2608 words, it makes the kernel MIPS16-tolerant.
2609
2610config CPU_SUPPORTS_MSA
2611 bool
2612
2613config ARCH_FLATMEM_ENABLE
2614 def_bool y
2615 depends on !NUMA && !CPU_LOONGSON2
2616
2617config ARCH_DISCONTIGMEM_ENABLE
2618 bool
2619 default y if SGI_IP27
2620 help
2621 Say Y to support efficient handling of discontiguous physical memory,
2622 for architectures which are either NUMA (Non-Uniform Memory Access)
2623 or have huge holes in the physical address space for other reasons.
2624 See <file:Documentation/vm/numa.rst> for more.
2625
2626config ARCH_SPARSEMEM_ENABLE
2627 bool
2628 select SPARSEMEM_STATIC
2629
2630config NUMA
2631 bool "NUMA Support"
2632 depends on SYS_SUPPORTS_NUMA
2633 help
2634 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2635 Access). This option improves performance on systems with more
2636 than two nodes; on two node systems it is generally better to
2637 leave it disabled; on single node systems disable this option
2638 disabled.
2639
2640config SYS_SUPPORTS_NUMA
2641 bool
2642
2643config RELOCATABLE
2644 bool "Relocatable kernel"
2645 depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC)
2646 help
2647 This builds a kernel image that retains relocation information
2648 so it can be loaded someplace besides the default 1MB.
2649 The relocations make the kernel binary about 15% larger,
2650 but are discarded at runtime
2651
2652config RELOCATION_TABLE_SIZE
2653 hex "Relocation table size"
2654 depends on RELOCATABLE
2655 range 0x0 0x01000000
2656 default "0x00100000"
2657 ---help---
2658 A table of relocation data will be appended to the kernel binary
2659 and parsed at boot to fix up the relocated kernel.
2660
2661 This option allows the amount of space reserved for the table to be
2662 adjusted, although the default of 1Mb should be ok in most cases.
2663
2664 The build will fail and a valid size suggested if this is too small.
2665
2666 If unsure, leave at the default value.
2667
2668config RANDOMIZE_BASE
2669 bool "Randomize the address of the kernel image"
2670 depends on RELOCATABLE
2671 ---help---
2672 Randomizes the physical and virtual address at which the
2673 kernel image is loaded, as a security feature that
2674 deters exploit attempts relying on knowledge of the location
2675 of kernel internals.
2676
2677 Entropy is generated using any coprocessor 0 registers available.
2678
2679 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2680
2681 If unsure, say N.
2682
2683config RANDOMIZE_BASE_MAX_OFFSET
2684 hex "Maximum kASLR offset" if EXPERT
2685 depends on RANDOMIZE_BASE
2686 range 0x0 0x40000000 if EVA || 64BIT
2687 range 0x0 0x08000000
2688 default "0x01000000"
2689 ---help---
2690 When kASLR is active, this provides the maximum offset that will
2691 be applied to the kernel image. It should be set according to the
2692 amount of physical RAM available in the target system minus
2693 PHYSICAL_START and must be a power of 2.
2694
2695 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2696 EVA or 64-bit. The default is 16Mb.
2697
2698config NODES_SHIFT
2699 int
2700 default "6"
2701 depends on NEED_MULTIPLE_NODES
2702
2703config HW_PERF_EVENTS
2704 bool "Enable hardware performance counter support for perf events"
2705 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2706 default y
2707 help
2708 Enable hardware performance counter support for perf events. If
2709 disabled, perf events will use software events only.
2710
2711config SMP
2712 bool "Multi-Processing support"
2713 depends on SYS_SUPPORTS_SMP
2714 help
2715 This enables support for systems with more than one CPU. If you have
2716 a system with only one CPU, say N. If you have a system with more
2717 than one CPU, say Y.
2718
2719 If you say N here, the kernel will run on uni- and multiprocessor
2720 machines, but will use only one CPU of a multiprocessor machine. If
2721 you say Y here, the kernel will run on many, but not all,
2722 uniprocessor machines. On a uniprocessor machine, the kernel
2723 will run faster if you say N here.
2724
2725 People using multiprocessor machines who say Y here should also say
2726 Y to "Enhanced Real Time Clock Support", below.
2727
2728 See also the SMP-HOWTO available at
2729 <http://www.tldp.org/docs.html#howto>.
2730
2731 If you don't know what to do here, say N.
2732
2733config HOTPLUG_CPU
2734 bool "Support for hot-pluggable CPUs"
2735 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2736 help
2737 Say Y here to allow turning CPUs off and on. CPUs can be
2738 controlled through /sys/devices/system/cpu.
2739 (Note: power management support will enable this option
2740 automatically on SMP systems. )
2741 Say N if you want to disable CPU hotplug.
2742
2743config SMP_UP
2744 bool
2745
2746config SYS_SUPPORTS_MIPS_CMP
2747 bool
2748
2749config SYS_SUPPORTS_MIPS_CPS
2750 bool
2751
2752config SYS_SUPPORTS_SMP
2753 bool
2754
2755config NR_CPUS_DEFAULT_4
2756 bool
2757
2758config NR_CPUS_DEFAULT_8
2759 bool
2760
2761config NR_CPUS_DEFAULT_16
2762 bool
2763
2764config NR_CPUS_DEFAULT_32
2765 bool
2766
2767config NR_CPUS_DEFAULT_64
2768 bool
2769
2770config NR_CPUS
2771 int "Maximum number of CPUs (2-256)"
2772 range 2 256
2773 depends on SMP
2774 default "4" if NR_CPUS_DEFAULT_4
2775 default "8" if NR_CPUS_DEFAULT_8
2776 default "16" if NR_CPUS_DEFAULT_16
2777 default "32" if NR_CPUS_DEFAULT_32
2778 default "64" if NR_CPUS_DEFAULT_64
2779 help
2780 This allows you to specify the maximum number of CPUs which this
2781 kernel will support. The maximum supported value is 32 for 32-bit
2782 kernel and 64 for 64-bit kernels; the minimum value which makes
2783 sense is 1 for Qemu (useful only for kernel debugging purposes)
2784 and 2 for all others.
2785
2786 This is purely to save memory - each supported CPU adds
2787 approximately eight kilobytes to the kernel image. For best
2788 performance should round up your number of processors to the next
2789 power of two.
2790
2791config MIPS_PERF_SHARED_TC_COUNTERS
2792 bool
2793
2794config MIPS_NR_CPU_NR_MAP_1024
2795 bool
2796
2797config MIPS_NR_CPU_NR_MAP
2798 int
2799 depends on SMP
2800 default 1024 if MIPS_NR_CPU_NR_MAP_1024
2801 default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
2802
2803#
2804# Timer Interrupt Frequency Configuration
2805#
2806
2807choice
2808 prompt "Timer frequency"
2809 default HZ_250
2810 help
2811 Allows the configuration of the timer frequency.
2812
2813 config HZ_24
2814 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2815
2816 config HZ_48
2817 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2818
2819 config HZ_100
2820 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2821
2822 config HZ_128
2823 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2824
2825 config HZ_250
2826 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2827
2828 config HZ_256
2829 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2830
2831 config HZ_1000
2832 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2833
2834 config HZ_1024
2835 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2836
2837endchoice
2838
2839config SYS_SUPPORTS_24HZ
2840 bool
2841
2842config SYS_SUPPORTS_48HZ
2843 bool
2844
2845config SYS_SUPPORTS_100HZ
2846 bool
2847
2848config SYS_SUPPORTS_128HZ
2849 bool
2850
2851config SYS_SUPPORTS_250HZ
2852 bool
2853
2854config SYS_SUPPORTS_256HZ
2855 bool
2856
2857config SYS_SUPPORTS_1000HZ
2858 bool
2859
2860config SYS_SUPPORTS_1024HZ
2861 bool
2862
2863config SYS_SUPPORTS_ARBIT_HZ
2864 bool
2865 default y if !SYS_SUPPORTS_24HZ && \
2866 !SYS_SUPPORTS_48HZ && \
2867 !SYS_SUPPORTS_100HZ && \
2868 !SYS_SUPPORTS_128HZ && \
2869 !SYS_SUPPORTS_250HZ && \
2870 !SYS_SUPPORTS_256HZ && \
2871 !SYS_SUPPORTS_1000HZ && \
2872 !SYS_SUPPORTS_1024HZ
2873
2874config HZ
2875 int
2876 default 24 if HZ_24
2877 default 48 if HZ_48
2878 default 100 if HZ_100
2879 default 128 if HZ_128
2880 default 250 if HZ_250
2881 default 256 if HZ_256
2882 default 1000 if HZ_1000
2883 default 1024 if HZ_1024
2884
2885config SCHED_HRTICK
2886 def_bool HIGH_RES_TIMERS
2887
2888config KEXEC
2889 bool "Kexec system call"
2890 select KEXEC_CORE
2891 help
2892 kexec is a system call that implements the ability to shutdown your
2893 current kernel, and to start another kernel. It is like a reboot
2894 but it is independent of the system firmware. And like a reboot
2895 you can start any kernel with it, not just Linux.
2896
2897 The name comes from the similarity to the exec system call.
2898
2899 It is an ongoing process to be certain the hardware in a machine
2900 is properly shutdown, so do not be surprised if this code does not
2901 initially work for you. As of this writing the exact hardware
2902 interface is strongly in flux, so no good recommendation can be
2903 made.
2904
2905config CRASH_DUMP
2906 bool "Kernel crash dumps"
2907 help
2908 Generate crash dump after being started by kexec.
2909 This should be normally only set in special crash dump kernels
2910 which are loaded in the main kernel with kexec-tools into
2911 a specially reserved region and then later executed after
2912 a crash by kdump/kexec. The crash dump kernel must be compiled
2913 to a memory address not used by the main kernel or firmware using
2914 PHYSICAL_START.
2915
2916config PHYSICAL_START
2917 hex "Physical address where the kernel is loaded"
2918 default "0xffffffff84000000"
2919 depends on CRASH_DUMP
2920 help
2921 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2922 If you plan to use kernel for capturing the crash dump change
2923 this value to start of the reserved region (the "X" value as
2924 specified in the "crashkernel=YM@XM" command line boot parameter
2925 passed to the panic-ed kernel).
2926
2927config SECCOMP
2928 bool "Enable seccomp to safely compute untrusted bytecode"
2929 depends on PROC_FS
2930 default y
2931 help
2932 This kernel feature is useful for number crunching applications
2933 that may need to compute untrusted bytecode during their
2934 execution. By using pipes or other transports made available to
2935 the process as file descriptors supporting the read/write
2936 syscalls, it's possible to isolate those applications in
2937 their own address space using seccomp. Once seccomp is
2938 enabled via /proc/<pid>/seccomp, it cannot be disabled
2939 and the task is only allowed to execute a few safe syscalls
2940 defined by each seccomp mode.
2941
2942 If unsure, say Y. Only embedded should say N here.
2943
2944config MIPS_O32_FP64_SUPPORT
2945 bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
2946 depends on 32BIT || MIPS32_O32
2947 help
2948 When this is enabled, the kernel will support use of 64-bit floating
2949 point registers with binaries using the O32 ABI along with the
2950 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2951 32-bit MIPS systems this support is at the cost of increasing the
2952 size and complexity of the compiled FPU emulator. Thus if you are
2953 running a MIPS32 system and know that none of your userland binaries
2954 will require 64-bit floating point, you may wish to reduce the size
2955 of your kernel & potentially improve FP emulation performance by
2956 saying N here.
2957
2958 Although binutils currently supports use of this flag the details
2959 concerning its effect upon the O32 ABI in userland are still being
2960 worked on. In order to avoid userland becoming dependant upon current
2961 behaviour before the details have been finalised, this option should
2962 be considered experimental and only enabled by those working upon
2963 said details.
2964
2965 If unsure, say N.
2966
2967config USE_OF
2968 bool
2969 select OF
2970 select OF_EARLY_FLATTREE
2971 select IRQ_DOMAIN
2972
2973config UHI_BOOT
2974 bool
2975
2976config BUILTIN_DTB
2977 bool
2978
2979choice
2980 prompt "Kernel appended dtb support" if USE_OF
2981 default MIPS_NO_APPENDED_DTB
2982
2983 config MIPS_NO_APPENDED_DTB
2984 bool "None"
2985 help
2986 Do not enable appended dtb support.
2987
2988 config MIPS_ELF_APPENDED_DTB
2989 bool "vmlinux"
2990 help
2991 With this option, the boot code will look for a device tree binary
2992 DTB) included in the vmlinux ELF section .appended_dtb. By default
2993 it is empty and the DTB can be appended using binutils command
2994 objcopy:
2995
2996 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
2997
2998 This is meant as a backward compatiblity convenience for those
2999 systems with a bootloader that can't be upgraded to accommodate
3000 the documented boot protocol using a device tree.
3001
3002 config MIPS_RAW_APPENDED_DTB
3003 bool "vmlinux.bin or vmlinuz.bin"
3004 help
3005 With this option, the boot code will look for a device tree binary
3006 DTB) appended to raw vmlinux.bin or vmlinuz.bin.
3007 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
3008
3009 This is meant as a backward compatibility convenience for those
3010 systems with a bootloader that can't be upgraded to accommodate
3011 the documented boot protocol using a device tree.
3012
3013 Beware that there is very little in terms of protection against
3014 this option being confused by leftover garbage in memory that might
3015 look like a DTB header after a reboot if no actual DTB is appended
3016 to vmlinux.bin. Do not leave this option active in a production kernel
3017 if you don't intend to always append a DTB.
3018endchoice
3019
3020choice
3021 prompt "Kernel command line type" if !CMDLINE_OVERRIDE
3022 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
3023 !MIPS_MALTA && \
3024 !CAVIUM_OCTEON_SOC
3025 default MIPS_CMDLINE_FROM_BOOTLOADER
3026
3027 config MIPS_CMDLINE_FROM_DTB
3028 depends on USE_OF
3029 bool "Dtb kernel arguments if available"
3030
3031 config MIPS_CMDLINE_DTB_EXTEND
3032 depends on USE_OF
3033 bool "Extend dtb kernel arguments with bootloader arguments"
3034
3035 config MIPS_CMDLINE_FROM_BOOTLOADER
3036 bool "Bootloader kernel arguments if available"
3037
3038 config MIPS_CMDLINE_BUILTIN_EXTEND
3039 depends on CMDLINE_BOOL
3040 bool "Extend builtin kernel arguments with bootloader arguments"
3041endchoice
3042
3043endmenu
3044
3045config LOCKDEP_SUPPORT
3046 bool
3047 default y
3048
3049config STACKTRACE_SUPPORT
3050 bool
3051 default y
3052
3053config PGTABLE_LEVELS
3054 int
3055 default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3056 default 3 if 64BIT && !PAGE_SIZE_64KB
3057 default 2
3058
3059config MIPS_AUTO_PFN_OFFSET
3060 bool
3061
3062menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
3063
3064config PCI_DRIVERS_GENERIC
3065 select PCI_DOMAINS_GENERIC if PCI
3066 bool
3067
3068config PCI_DRIVERS_LEGACY
3069 def_bool !PCI_DRIVERS_GENERIC
3070 select NO_GENERIC_PCI_IOPORT_MAP
3071 select PCI_DOMAINS if PCI
3072
3073#
3074# ISA support is now enabled via select. Too many systems still have the one
3075# or other ISA chip on the board that users don't know about so don't expect
3076# users to choose the right thing ...
3077#
3078config ISA
3079 bool
3080
3081config TC
3082 bool "TURBOchannel support"
3083 depends on MACH_DECSTATION
3084 help
3085 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3086 processors. TURBOchannel programming specifications are available
3087 at:
3088 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3089 and:
3090 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3091 Linux driver support status is documented at:
3092 <http://www.linux-mips.org/wiki/DECstation>
3093
3094config MMU
3095 bool
3096 default y
3097
3098config ARCH_MMAP_RND_BITS_MIN
3099 default 12 if 64BIT
3100 default 8
3101
3102config ARCH_MMAP_RND_BITS_MAX
3103 default 18 if 64BIT
3104 default 15
3105
3106config ARCH_MMAP_RND_COMPAT_BITS_MIN
3107 default 8
3108
3109config ARCH_MMAP_RND_COMPAT_BITS_MAX
3110 default 15
3111
3112config I8253
3113 bool
3114 select CLKSRC_I8253
3115 select CLKEVT_I8253
3116 select MIPS_EXTERNAL_TIMER
3117
3118config ZONE_DMA
3119 bool
3120
3121config ZONE_DMA32
3122 bool
3123
3124endmenu
3125
3126config TRAD_SIGNALS
3127 bool
3128
3129config MIPS32_COMPAT
3130 bool
3131
3132config COMPAT
3133 bool
3134
3135config SYSVIPC_COMPAT
3136 bool
3137
3138config MIPS32_O32
3139 bool "Kernel support for o32 binaries"
3140 depends on 64BIT
3141 select ARCH_WANT_OLD_COMPAT_IPC
3142 select COMPAT
3143 select MIPS32_COMPAT
3144 select SYSVIPC_COMPAT if SYSVIPC
3145 help
3146 Select this option if you want to run o32 binaries. These are pure
3147 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
3148 existing binaries are in this format.
3149
3150 If unsure, say Y.
3151
3152config MIPS32_N32
3153 bool "Kernel support for n32 binaries"
3154 depends on 64BIT
3155 select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
3156 select COMPAT
3157 select MIPS32_COMPAT
3158 select SYSVIPC_COMPAT if SYSVIPC
3159 help
3160 Select this option if you want to run n32 binaries. These are
3161 64-bit binaries using 32-bit quantities for addressing and certain
3162 data that would normally be 64-bit. They are used in special
3163 cases.
3164
3165 If unsure, say N.
3166
3167config BINFMT_ELF32
3168 bool
3169 default y if MIPS32_O32 || MIPS32_N32
3170 select ELFCORE
3171
3172menu "Power management options"
3173
3174config ARCH_HIBERNATION_POSSIBLE
3175 def_bool y
3176 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3177
3178config ARCH_SUSPEND_POSSIBLE
3179 def_bool y
3180 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3181
3182source "kernel/power/Kconfig"
3183
3184endmenu
3185
3186config MIPS_EXTERNAL_TIMER
3187 bool
3188
3189menu "CPU Power Management"
3190
3191if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3192source "drivers/cpufreq/Kconfig"
3193endif
3194
3195source "drivers/cpuidle/Kconfig"
3196
3197endmenu
3198
3199source "drivers/firmware/Kconfig"
3200
3201source "arch/mips/kvm/Kconfig"
1config MIPS
2 bool
3 default y
4 select ARCH_SUPPORTS_UPROBES
5 select ARCH_MIGHT_HAVE_PC_PARPORT
6 select ARCH_MIGHT_HAVE_PC_SERIO
7 select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
8 select ARCH_USE_BUILTIN_BSWAP
9 select HAVE_CONTEXT_TRACKING
10 select HAVE_GENERIC_DMA_COHERENT
11 select HAVE_IDE
12 select HAVE_IRQ_EXIT_ON_IRQ_STACK
13 select HAVE_OPROFILE
14 select HAVE_PERF_EVENTS
15 select PERF_USE_VMALLOC
16 select HAVE_ARCH_KGDB
17 select HAVE_ARCH_SECCOMP_FILTER
18 select HAVE_ARCH_TRACEHOOK
19 select HAVE_CBPF_JIT if !CPU_MICROMIPS
20 select HAVE_FUNCTION_TRACER
21 select HAVE_DYNAMIC_FTRACE
22 select HAVE_FTRACE_MCOUNT_RECORD
23 select HAVE_C_RECORDMCOUNT
24 select HAVE_FUNCTION_GRAPH_TRACER
25 select HAVE_KPROBES
26 select HAVE_KRETPROBES
27 select HAVE_SYSCALL_TRACEPOINTS
28 select HAVE_DEBUG_KMEMLEAK
29 select HAVE_SYSCALL_TRACEPOINTS
30 select ARCH_HAS_ELF_RANDOMIZE
31 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
32 select RTC_LIB if !MACH_LOONGSON64
33 select GENERIC_ATOMIC64 if !64BIT
34 select HAVE_DMA_CONTIGUOUS
35 select HAVE_DMA_API_DEBUG
36 select GENERIC_IRQ_PROBE
37 select GENERIC_IRQ_SHOW
38 select GENERIC_PCI_IOMAP
39 select HAVE_ARCH_JUMP_LABEL
40 select ARCH_WANT_IPC_PARSE_VERSION
41 select IRQ_FORCED_THREADING
42 select HAVE_MEMBLOCK
43 select HAVE_MEMBLOCK_NODE_MAP
44 select ARCH_DISCARD_MEMBLOCK
45 select GENERIC_SMP_IDLE_THREAD
46 select BUILDTIME_EXTABLE_SORT
47 select GENERIC_CLOCKEVENTS
48 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
49 select GENERIC_CMOS_UPDATE
50 select HAVE_MOD_ARCH_SPECIFIC
51 select HAVE_NMI
52 select VIRT_TO_BUS
53 select MODULES_USE_ELF_REL if MODULES
54 select MODULES_USE_ELF_RELA if MODULES && 64BIT
55 select CLONE_BACKWARDS
56 select HAVE_DEBUG_STACKOVERFLOW
57 select HAVE_CC_STACKPROTECTOR
58 select CPU_PM if CPU_IDLE
59 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
60 select ARCH_BINFMT_ELF_STATE
61 select SYSCTL_EXCEPTION_TRACE
62 select HAVE_VIRT_CPU_ACCOUNTING_GEN
63 select HAVE_IRQ_TIME_ACCOUNTING
64 select GENERIC_TIME_VSYSCALL
65 select ARCH_CLOCKSOURCE_DATA
66 select HANDLE_DOMAIN_IRQ
67 select HAVE_EXIT_THREAD
68 select HAVE_REGS_AND_STACK_ACCESS_API
69 select HAVE_ARCH_HARDENED_USERCOPY
70
71menu "Machine selection"
72
73choice
74 prompt "System type"
75 default SGI_IP22
76
77config MIPS_GENERIC
78 bool "Generic board-agnostic MIPS kernel"
79 select BOOT_RAW
80 select BUILTIN_DTB
81 select CEVT_R4K
82 select CLKSRC_MIPS_GIC
83 select COMMON_CLK
84 select CPU_MIPSR2_IRQ_VI
85 select CPU_MIPSR2_IRQ_EI
86 select CSRC_R4K
87 select DMA_PERDEV_COHERENT
88 select HW_HAS_PCI
89 select IRQ_MIPS_CPU
90 select LIBFDT
91 select MIPS_CPU_SCACHE
92 select MIPS_GIC
93 select MIPS_L1_CACHE_SHIFT_7
94 select NO_EXCEPT_FILL
95 select PCI_DRIVERS_GENERIC
96 select PINCTRL
97 select SMP_UP if SMP
98 select SYS_HAS_CPU_MIPS32_R1
99 select SYS_HAS_CPU_MIPS32_R2
100 select SYS_HAS_CPU_MIPS32_R6
101 select SYS_HAS_CPU_MIPS64_R1
102 select SYS_HAS_CPU_MIPS64_R2
103 select SYS_HAS_CPU_MIPS64_R6
104 select SYS_SUPPORTS_32BIT_KERNEL
105 select SYS_SUPPORTS_64BIT_KERNEL
106 select SYS_SUPPORTS_BIG_ENDIAN
107 select SYS_SUPPORTS_HIGHMEM
108 select SYS_SUPPORTS_LITTLE_ENDIAN
109 select SYS_SUPPORTS_MICROMIPS
110 select SYS_SUPPORTS_MIPS_CPS
111 select SYS_SUPPORTS_MIPS16
112 select SYS_SUPPORTS_MULTITHREADING
113 select SYS_SUPPORTS_RELOCATABLE
114 select SYS_SUPPORTS_SMARTMIPS
115 select USB_EHCI_BIG_ENDIAN_DESC if BIG_ENDIAN
116 select USB_EHCI_BIG_ENDIAN_MMIO if BIG_ENDIAN
117 select USB_OHCI_BIG_ENDIAN_DESC if BIG_ENDIAN
118 select USB_OHCI_BIG_ENDIAN_MMIO if BIG_ENDIAN
119 select USB_UHCI_BIG_ENDIAN_DESC if BIG_ENDIAN
120 select USB_UHCI_BIG_ENDIAN_MMIO if BIG_ENDIAN
121 select USE_OF
122 help
123 Select this to build a kernel which aims to support multiple boards,
124 generally using a flattened device tree passed from the bootloader
125 using the boot protocol defined in the UHI (Unified Hosting
126 Interface) specification.
127
128config MIPS_ALCHEMY
129 bool "Alchemy processor based machines"
130 select ARCH_PHYS_ADDR_T_64BIT
131 select CEVT_R4K
132 select CSRC_R4K
133 select IRQ_MIPS_CPU
134 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is
135 select SYS_HAS_CPU_MIPS32_R1
136 select SYS_SUPPORTS_32BIT_KERNEL
137 select SYS_SUPPORTS_APM_EMULATION
138 select GPIOLIB
139 select SYS_SUPPORTS_ZBOOT
140 select COMMON_CLK
141
142config AR7
143 bool "Texas Instruments AR7"
144 select BOOT_ELF32
145 select DMA_NONCOHERENT
146 select CEVT_R4K
147 select CSRC_R4K
148 select IRQ_MIPS_CPU
149 select NO_EXCEPT_FILL
150 select SWAP_IO_SPACE
151 select SYS_HAS_CPU_MIPS32_R1
152 select SYS_HAS_EARLY_PRINTK
153 select SYS_SUPPORTS_32BIT_KERNEL
154 select SYS_SUPPORTS_LITTLE_ENDIAN
155 select SYS_SUPPORTS_MIPS16
156 select SYS_SUPPORTS_ZBOOT_UART16550
157 select GPIOLIB
158 select VLYNQ
159 select HAVE_CLK
160 help
161 Support for the Texas Instruments AR7 System-on-a-Chip
162 family: TNETD7100, 7200 and 7300.
163
164config ATH25
165 bool "Atheros AR231x/AR531x SoC support"
166 select CEVT_R4K
167 select CSRC_R4K
168 select DMA_NONCOHERENT
169 select IRQ_MIPS_CPU
170 select IRQ_DOMAIN
171 select SYS_HAS_CPU_MIPS32_R1
172 select SYS_SUPPORTS_BIG_ENDIAN
173 select SYS_SUPPORTS_32BIT_KERNEL
174 select SYS_HAS_EARLY_PRINTK
175 help
176 Support for Atheros AR231x and Atheros AR531x based boards
177
178config ATH79
179 bool "Atheros AR71XX/AR724X/AR913X based boards"
180 select ARCH_HAS_RESET_CONTROLLER
181 select BOOT_RAW
182 select CEVT_R4K
183 select CSRC_R4K
184 select DMA_NONCOHERENT
185 select GPIOLIB
186 select HAVE_CLK
187 select COMMON_CLK
188 select CLKDEV_LOOKUP
189 select IRQ_MIPS_CPU
190 select MIPS_MACHINE
191 select SYS_HAS_CPU_MIPS32_R2
192 select SYS_HAS_EARLY_PRINTK
193 select SYS_SUPPORTS_32BIT_KERNEL
194 select SYS_SUPPORTS_BIG_ENDIAN
195 select SYS_SUPPORTS_MIPS16
196 select SYS_SUPPORTS_ZBOOT_UART_PROM
197 select USE_OF
198 help
199 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
200
201config BMIPS_GENERIC
202 bool "Broadcom Generic BMIPS kernel"
203 select BOOT_RAW
204 select NO_EXCEPT_FILL
205 select USE_OF
206 select CEVT_R4K
207 select CSRC_R4K
208 select SYNC_R4K
209 select COMMON_CLK
210 select BCM6345_L1_IRQ
211 select BCM7038_L1_IRQ
212 select BCM7120_L2_IRQ
213 select BRCMSTB_L2_IRQ
214 select IRQ_MIPS_CPU
215 select DMA_NONCOHERENT
216 select SYS_SUPPORTS_32BIT_KERNEL
217 select SYS_SUPPORTS_LITTLE_ENDIAN
218 select SYS_SUPPORTS_BIG_ENDIAN
219 select SYS_SUPPORTS_HIGHMEM
220 select SYS_HAS_CPU_BMIPS32_3300
221 select SYS_HAS_CPU_BMIPS4350
222 select SYS_HAS_CPU_BMIPS4380
223 select SYS_HAS_CPU_BMIPS5000
224 select SWAP_IO_SPACE
225 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
226 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
227 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
228 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
229 help
230 Build a generic DT-based kernel image that boots on select
231 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
232 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
233 must be set appropriately for your board.
234
235config BCM47XX
236 bool "Broadcom BCM47XX based boards"
237 select BOOT_RAW
238 select CEVT_R4K
239 select CSRC_R4K
240 select DMA_NONCOHERENT
241 select HW_HAS_PCI
242 select IRQ_MIPS_CPU
243 select SYS_HAS_CPU_MIPS32_R1
244 select NO_EXCEPT_FILL
245 select SYS_SUPPORTS_32BIT_KERNEL
246 select SYS_SUPPORTS_LITTLE_ENDIAN
247 select SYS_SUPPORTS_MIPS16
248 select SYS_HAS_EARLY_PRINTK
249 select USE_GENERIC_EARLY_PRINTK_8250
250 select GPIOLIB
251 select LEDS_GPIO_REGISTER
252 select BCM47XX_NVRAM
253 select BCM47XX_SPROM
254 help
255 Support for BCM47XX based boards
256
257config BCM63XX
258 bool "Broadcom BCM63XX based boards"
259 select BOOT_RAW
260 select CEVT_R4K
261 select CSRC_R4K
262 select SYNC_R4K
263 select DMA_NONCOHERENT
264 select IRQ_MIPS_CPU
265 select SYS_SUPPORTS_32BIT_KERNEL
266 select SYS_SUPPORTS_BIG_ENDIAN
267 select SYS_HAS_EARLY_PRINTK
268 select SWAP_IO_SPACE
269 select GPIOLIB
270 select HAVE_CLK
271 select MIPS_L1_CACHE_SHIFT_4
272 help
273 Support for BCM63XX based boards
274
275config MIPS_COBALT
276 bool "Cobalt Server"
277 select CEVT_R4K
278 select CSRC_R4K
279 select CEVT_GT641XX
280 select DMA_NONCOHERENT
281 select HW_HAS_PCI
282 select I8253
283 select I8259
284 select IRQ_MIPS_CPU
285 select IRQ_GT641XX
286 select PCI_GT64XXX_PCI0
287 select PCI
288 select SYS_HAS_CPU_NEVADA
289 select SYS_HAS_EARLY_PRINTK
290 select SYS_SUPPORTS_32BIT_KERNEL
291 select SYS_SUPPORTS_64BIT_KERNEL
292 select SYS_SUPPORTS_LITTLE_ENDIAN
293 select USE_GENERIC_EARLY_PRINTK_8250
294
295config MACH_DECSTATION
296 bool "DECstations"
297 select BOOT_ELF32
298 select CEVT_DS1287
299 select CEVT_R4K if CPU_R4X00
300 select CSRC_IOASIC
301 select CSRC_R4K if CPU_R4X00
302 select CPU_DADDI_WORKAROUNDS if 64BIT
303 select CPU_R4000_WORKAROUNDS if 64BIT
304 select CPU_R4400_WORKAROUNDS if 64BIT
305 select DMA_NONCOHERENT
306 select NO_IOPORT_MAP
307 select IRQ_MIPS_CPU
308 select SYS_HAS_CPU_R3000
309 select SYS_HAS_CPU_R4X00
310 select SYS_SUPPORTS_32BIT_KERNEL
311 select SYS_SUPPORTS_64BIT_KERNEL
312 select SYS_SUPPORTS_LITTLE_ENDIAN
313 select SYS_SUPPORTS_128HZ
314 select SYS_SUPPORTS_256HZ
315 select SYS_SUPPORTS_1024HZ
316 select MIPS_L1_CACHE_SHIFT_4
317 help
318 This enables support for DEC's MIPS based workstations. For details
319 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
320 DECstation porting pages on <http://decstation.unix-ag.org/>.
321
322 If you have one of the following DECstation Models you definitely
323 want to choose R4xx0 for the CPU Type:
324
325 DECstation 5000/50
326 DECstation 5000/150
327 DECstation 5000/260
328 DECsystem 5900/260
329
330 otherwise choose R3000.
331
332config MACH_JAZZ
333 bool "Jazz family of machines"
334 select FW_ARC
335 select FW_ARC32
336 select ARCH_MAY_HAVE_PC_FDC
337 select CEVT_R4K
338 select CSRC_R4K
339 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
340 select GENERIC_ISA_DMA
341 select HAVE_PCSPKR_PLATFORM
342 select IRQ_MIPS_CPU
343 select I8253
344 select I8259
345 select ISA
346 select SYS_HAS_CPU_R4X00
347 select SYS_SUPPORTS_32BIT_KERNEL
348 select SYS_SUPPORTS_64BIT_KERNEL
349 select SYS_SUPPORTS_100HZ
350 help
351 This a family of machines based on the MIPS R4030 chipset which was
352 used by several vendors to build RISC/os and Windows NT workstations.
353 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
354 Olivetti M700-10 workstations.
355
356config MACH_INGENIC
357 bool "Ingenic SoC based machines"
358 select SYS_SUPPORTS_32BIT_KERNEL
359 select SYS_SUPPORTS_LITTLE_ENDIAN
360 select SYS_SUPPORTS_ZBOOT_UART16550
361 select DMA_NONCOHERENT
362 select IRQ_MIPS_CPU
363 select GPIOLIB
364 select COMMON_CLK
365 select GENERIC_IRQ_CHIP
366 select BUILTIN_DTB
367 select USE_OF
368 select LIBFDT
369
370config LANTIQ
371 bool "Lantiq based platforms"
372 select DMA_NONCOHERENT
373 select IRQ_MIPS_CPU
374 select CEVT_R4K
375 select CSRC_R4K
376 select SYS_HAS_CPU_MIPS32_R1
377 select SYS_HAS_CPU_MIPS32_R2
378 select SYS_SUPPORTS_BIG_ENDIAN
379 select SYS_SUPPORTS_32BIT_KERNEL
380 select SYS_SUPPORTS_MIPS16
381 select SYS_SUPPORTS_MULTITHREADING
382 select SYS_HAS_EARLY_PRINTK
383 select GPIOLIB
384 select SWAP_IO_SPACE
385 select BOOT_RAW
386 select CLKDEV_LOOKUP
387 select USE_OF
388 select PINCTRL
389 select PINCTRL_LANTIQ
390 select ARCH_HAS_RESET_CONTROLLER
391 select RESET_CONTROLLER
392
393config LASAT
394 bool "LASAT Networks platforms"
395 select CEVT_R4K
396 select CRC32
397 select CSRC_R4K
398 select DMA_NONCOHERENT
399 select SYS_HAS_EARLY_PRINTK
400 select HW_HAS_PCI
401 select IRQ_MIPS_CPU
402 select PCI_GT64XXX_PCI0
403 select MIPS_NILE4
404 select R5000_CPU_SCACHE
405 select SYS_HAS_CPU_R5000
406 select SYS_SUPPORTS_32BIT_KERNEL
407 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
408 select SYS_SUPPORTS_LITTLE_ENDIAN
409
410config MACH_LOONGSON32
411 bool "Loongson-1 family of machines"
412 select SYS_SUPPORTS_ZBOOT
413 help
414 This enables support for the Loongson-1 family of machines.
415
416 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
417 the Institute of Computing Technology (ICT), Chinese Academy of
418 Sciences (CAS).
419
420config MACH_LOONGSON64
421 bool "Loongson-2/3 family of machines"
422 select SYS_SUPPORTS_ZBOOT
423 help
424 This enables the support of Loongson-2/3 family of machines.
425
426 Loongson-2 is a family of single-core CPUs and Loongson-3 is a
427 family of multi-core CPUs. They are both 64-bit general-purpose
428 MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute
429 of Computing Technology (ICT), Chinese Academy of Sciences (CAS)
430 in the People's Republic of China. The chief architect is Professor
431 Weiwu Hu.
432
433config MACH_PISTACHIO
434 bool "IMG Pistachio SoC based boards"
435 select BOOT_ELF32
436 select BOOT_RAW
437 select CEVT_R4K
438 select CLKSRC_MIPS_GIC
439 select COMMON_CLK
440 select CSRC_R4K
441 select DMA_NONCOHERENT
442 select GPIOLIB
443 select IRQ_MIPS_CPU
444 select LIBFDT
445 select MFD_SYSCON
446 select MIPS_CPU_SCACHE
447 select MIPS_GIC
448 select PINCTRL
449 select REGULATOR
450 select SYS_HAS_CPU_MIPS32_R2
451 select SYS_SUPPORTS_32BIT_KERNEL
452 select SYS_SUPPORTS_LITTLE_ENDIAN
453 select SYS_SUPPORTS_MIPS_CPS
454 select SYS_SUPPORTS_MULTITHREADING
455 select SYS_SUPPORTS_RELOCATABLE
456 select SYS_SUPPORTS_ZBOOT
457 select SYS_HAS_EARLY_PRINTK
458 select USE_GENERIC_EARLY_PRINTK_8250
459 select USE_OF
460 help
461 This enables support for the IMG Pistachio SoC platform.
462
463config MACH_XILFPGA
464 bool "MIPSfpga Xilinx based boards"
465 select BOOT_ELF32
466 select BOOT_RAW
467 select BUILTIN_DTB
468 select CEVT_R4K
469 select COMMON_CLK
470 select CSRC_R4K
471 select GPIOLIB
472 select IRQ_MIPS_CPU
473 select LIBFDT
474 select MIPS_CPU_SCACHE
475 select SYS_HAS_EARLY_PRINTK
476 select SYS_HAS_CPU_MIPS32_R2
477 select SYS_SUPPORTS_32BIT_KERNEL
478 select SYS_SUPPORTS_LITTLE_ENDIAN
479 select SYS_SUPPORTS_ZBOOT_UART16550
480 select USE_OF
481 select USE_GENERIC_EARLY_PRINTK_8250
482 help
483 This enables support for the IMG University Program MIPSfpga platform.
484
485config MIPS_MALTA
486 bool "MIPS Malta board"
487 select ARCH_MAY_HAVE_PC_FDC
488 select BOOT_ELF32
489 select BOOT_RAW
490 select BUILTIN_DTB
491 select CEVT_R4K
492 select CSRC_R4K
493 select CLKSRC_MIPS_GIC
494 select COMMON_CLK
495 select DMA_MAYBE_COHERENT
496 select GENERIC_ISA_DMA
497 select HAVE_PCSPKR_PLATFORM
498 select IRQ_MIPS_CPU
499 select MIPS_GIC
500 select HW_HAS_PCI
501 select I8253
502 select I8259
503 select MIPS_BONITO64
504 select MIPS_CPU_SCACHE
505 select MIPS_L1_CACHE_SHIFT_6
506 select PCI_GT64XXX_PCI0
507 select MIPS_MSC
508 select SMP_UP if SMP
509 select SWAP_IO_SPACE
510 select SYS_HAS_CPU_MIPS32_R1
511 select SYS_HAS_CPU_MIPS32_R2
512 select SYS_HAS_CPU_MIPS32_R3_5
513 select SYS_HAS_CPU_MIPS32_R5
514 select SYS_HAS_CPU_MIPS32_R6
515 select SYS_HAS_CPU_MIPS64_R1
516 select SYS_HAS_CPU_MIPS64_R2
517 select SYS_HAS_CPU_MIPS64_R6
518 select SYS_HAS_CPU_NEVADA
519 select SYS_HAS_CPU_RM7000
520 select SYS_SUPPORTS_32BIT_KERNEL
521 select SYS_SUPPORTS_64BIT_KERNEL
522 select SYS_SUPPORTS_BIG_ENDIAN
523 select SYS_SUPPORTS_HIGHMEM
524 select SYS_SUPPORTS_LITTLE_ENDIAN
525 select SYS_SUPPORTS_MICROMIPS
526 select SYS_SUPPORTS_MIPS_CMP
527 select SYS_SUPPORTS_MIPS_CPS
528 select SYS_SUPPORTS_MIPS16
529 select SYS_SUPPORTS_MULTITHREADING
530 select SYS_SUPPORTS_SMARTMIPS
531 select SYS_SUPPORTS_ZBOOT
532 select SYS_SUPPORTS_RELOCATABLE
533 select USE_OF
534 select LIBFDT
535 select ZONE_DMA32 if 64BIT
536 select BUILTIN_DTB
537 select LIBFDT
538 help
539 This enables support for the MIPS Technologies Malta evaluation
540 board.
541
542config MACH_PIC32
543 bool "Microchip PIC32 Family"
544 help
545 This enables support for the Microchip PIC32 family of platforms.
546
547 Microchip PIC32 is a family of general-purpose 32 bit MIPS core
548 microcontrollers.
549
550config NEC_MARKEINS
551 bool "NEC EMMA2RH Mark-eins board"
552 select SOC_EMMA2RH
553 select HW_HAS_PCI
554 help
555 This enables support for the NEC Electronics Mark-eins boards.
556
557config MACH_VR41XX
558 bool "NEC VR4100 series based machines"
559 select CEVT_R4K
560 select CSRC_R4K
561 select SYS_HAS_CPU_VR41XX
562 select SYS_SUPPORTS_MIPS16
563 select GPIOLIB
564
565config NXP_STB220
566 bool "NXP STB220 board"
567 select SOC_PNX833X
568 help
569 Support for NXP Semiconductors STB220 Development Board.
570
571config NXP_STB225
572 bool "NXP 225 board"
573 select SOC_PNX833X
574 select SOC_PNX8335
575 help
576 Support for NXP Semiconductors STB225 Development Board.
577
578config PMC_MSP
579 bool "PMC-Sierra MSP chipsets"
580 select CEVT_R4K
581 select CSRC_R4K
582 select DMA_NONCOHERENT
583 select SWAP_IO_SPACE
584 select NO_EXCEPT_FILL
585 select BOOT_RAW
586 select SYS_HAS_CPU_MIPS32_R1
587 select SYS_HAS_CPU_MIPS32_R2
588 select SYS_SUPPORTS_32BIT_KERNEL
589 select SYS_SUPPORTS_BIG_ENDIAN
590 select SYS_SUPPORTS_MIPS16
591 select IRQ_MIPS_CPU
592 select SERIAL_8250
593 select SERIAL_8250_CONSOLE
594 select USB_EHCI_BIG_ENDIAN_MMIO
595 select USB_EHCI_BIG_ENDIAN_DESC
596 help
597 This adds support for the PMC-Sierra family of Multi-Service
598 Processor System-On-A-Chips. These parts include a number
599 of integrated peripherals, interfaces and DSPs in addition to
600 a variety of MIPS cores.
601
602config RALINK
603 bool "Ralink based machines"
604 select CEVT_R4K
605 select CSRC_R4K
606 select BOOT_RAW
607 select DMA_NONCOHERENT
608 select IRQ_MIPS_CPU
609 select USE_OF
610 select SYS_HAS_CPU_MIPS32_R1
611 select SYS_HAS_CPU_MIPS32_R2
612 select SYS_SUPPORTS_32BIT_KERNEL
613 select SYS_SUPPORTS_LITTLE_ENDIAN
614 select SYS_SUPPORTS_MIPS16
615 select SYS_HAS_EARLY_PRINTK
616 select CLKDEV_LOOKUP
617 select ARCH_HAS_RESET_CONTROLLER
618 select RESET_CONTROLLER
619
620config SGI_IP22
621 bool "SGI IP22 (Indy/Indigo2)"
622 select FW_ARC
623 select FW_ARC32
624 select BOOT_ELF32
625 select CEVT_R4K
626 select CSRC_R4K
627 select DEFAULT_SGI_PARTITION
628 select DMA_NONCOHERENT
629 select HW_HAS_EISA
630 select I8253
631 select I8259
632 select IP22_CPU_SCACHE
633 select IRQ_MIPS_CPU
634 select GENERIC_ISA_DMA_SUPPORT_BROKEN
635 select SGI_HAS_I8042
636 select SGI_HAS_INDYDOG
637 select SGI_HAS_HAL2
638 select SGI_HAS_SEEQ
639 select SGI_HAS_WD93
640 select SGI_HAS_ZILOG
641 select SWAP_IO_SPACE
642 select SYS_HAS_CPU_R4X00
643 select SYS_HAS_CPU_R5000
644 #
645 # Disable EARLY_PRINTK for now since it leads to overwritten prom
646 # memory during early boot on some machines.
647 #
648 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
649 # for a more details discussion
650 #
651 # select SYS_HAS_EARLY_PRINTK
652 select SYS_SUPPORTS_32BIT_KERNEL
653 select SYS_SUPPORTS_64BIT_KERNEL
654 select SYS_SUPPORTS_BIG_ENDIAN
655 select MIPS_L1_CACHE_SHIFT_7
656 help
657 This are the SGI Indy, Challenge S and Indigo2, as well as certain
658 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
659 that runs on these, say Y here.
660
661config SGI_IP27
662 bool "SGI IP27 (Origin200/2000)"
663 select FW_ARC
664 select FW_ARC64
665 select BOOT_ELF64
666 select DEFAULT_SGI_PARTITION
667 select DMA_COHERENT
668 select SYS_HAS_EARLY_PRINTK
669 select HW_HAS_PCI
670 select NR_CPUS_DEFAULT_64
671 select SYS_HAS_CPU_R10000
672 select SYS_SUPPORTS_64BIT_KERNEL
673 select SYS_SUPPORTS_BIG_ENDIAN
674 select SYS_SUPPORTS_NUMA
675 select SYS_SUPPORTS_SMP
676 select MIPS_L1_CACHE_SHIFT_7
677 help
678 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
679 workstations. To compile a Linux kernel that runs on these, say Y
680 here.
681
682config SGI_IP28
683 bool "SGI IP28 (Indigo2 R10k)"
684 select FW_ARC
685 select FW_ARC64
686 select BOOT_ELF64
687 select CEVT_R4K
688 select CSRC_R4K
689 select DEFAULT_SGI_PARTITION
690 select DMA_NONCOHERENT
691 select GENERIC_ISA_DMA_SUPPORT_BROKEN
692 select IRQ_MIPS_CPU
693 select HW_HAS_EISA
694 select I8253
695 select I8259
696 select SGI_HAS_I8042
697 select SGI_HAS_INDYDOG
698 select SGI_HAS_HAL2
699 select SGI_HAS_SEEQ
700 select SGI_HAS_WD93
701 select SGI_HAS_ZILOG
702 select SWAP_IO_SPACE
703 select SYS_HAS_CPU_R10000
704 #
705 # Disable EARLY_PRINTK for now since it leads to overwritten prom
706 # memory during early boot on some machines.
707 #
708 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
709 # for a more details discussion
710 #
711 # select SYS_HAS_EARLY_PRINTK
712 select SYS_SUPPORTS_64BIT_KERNEL
713 select SYS_SUPPORTS_BIG_ENDIAN
714 select MIPS_L1_CACHE_SHIFT_7
715 help
716 This is the SGI Indigo2 with R10000 processor. To compile a Linux
717 kernel that runs on these, say Y here.
718
719config SGI_IP32
720 bool "SGI IP32 (O2)"
721 select FW_ARC
722 select FW_ARC32
723 select BOOT_ELF32
724 select CEVT_R4K
725 select CSRC_R4K
726 select DMA_NONCOHERENT
727 select HW_HAS_PCI
728 select IRQ_MIPS_CPU
729 select R5000_CPU_SCACHE
730 select RM7000_CPU_SCACHE
731 select SYS_HAS_CPU_R5000
732 select SYS_HAS_CPU_R10000 if BROKEN
733 select SYS_HAS_CPU_RM7000
734 select SYS_HAS_CPU_NEVADA
735 select SYS_SUPPORTS_64BIT_KERNEL
736 select SYS_SUPPORTS_BIG_ENDIAN
737 help
738 If you want this kernel to run on SGI O2 workstation, say Y here.
739
740config SIBYTE_CRHINE
741 bool "Sibyte BCM91120C-CRhine"
742 select BOOT_ELF32
743 select DMA_COHERENT
744 select SIBYTE_BCM1120
745 select SWAP_IO_SPACE
746 select SYS_HAS_CPU_SB1
747 select SYS_SUPPORTS_BIG_ENDIAN
748 select SYS_SUPPORTS_LITTLE_ENDIAN
749
750config SIBYTE_CARMEL
751 bool "Sibyte BCM91120x-Carmel"
752 select BOOT_ELF32
753 select DMA_COHERENT
754 select SIBYTE_BCM1120
755 select SWAP_IO_SPACE
756 select SYS_HAS_CPU_SB1
757 select SYS_SUPPORTS_BIG_ENDIAN
758 select SYS_SUPPORTS_LITTLE_ENDIAN
759
760config SIBYTE_CRHONE
761 bool "Sibyte BCM91125C-CRhone"
762 select BOOT_ELF32
763 select DMA_COHERENT
764 select SIBYTE_BCM1125
765 select SWAP_IO_SPACE
766 select SYS_HAS_CPU_SB1
767 select SYS_SUPPORTS_BIG_ENDIAN
768 select SYS_SUPPORTS_HIGHMEM
769 select SYS_SUPPORTS_LITTLE_ENDIAN
770
771config SIBYTE_RHONE
772 bool "Sibyte BCM91125E-Rhone"
773 select BOOT_ELF32
774 select DMA_COHERENT
775 select SIBYTE_BCM1125H
776 select SWAP_IO_SPACE
777 select SYS_HAS_CPU_SB1
778 select SYS_SUPPORTS_BIG_ENDIAN
779 select SYS_SUPPORTS_LITTLE_ENDIAN
780
781config SIBYTE_SWARM
782 bool "Sibyte BCM91250A-SWARM"
783 select BOOT_ELF32
784 select DMA_COHERENT
785 select HAVE_PATA_PLATFORM
786 select SIBYTE_SB1250
787 select SWAP_IO_SPACE
788 select SYS_HAS_CPU_SB1
789 select SYS_SUPPORTS_BIG_ENDIAN
790 select SYS_SUPPORTS_HIGHMEM
791 select SYS_SUPPORTS_LITTLE_ENDIAN
792 select ZONE_DMA32 if 64BIT
793
794config SIBYTE_LITTLESUR
795 bool "Sibyte BCM91250C2-LittleSur"
796 select BOOT_ELF32
797 select DMA_COHERENT
798 select HAVE_PATA_PLATFORM
799 select SIBYTE_SB1250
800 select SWAP_IO_SPACE
801 select SYS_HAS_CPU_SB1
802 select SYS_SUPPORTS_BIG_ENDIAN
803 select SYS_SUPPORTS_HIGHMEM
804 select SYS_SUPPORTS_LITTLE_ENDIAN
805
806config SIBYTE_SENTOSA
807 bool "Sibyte BCM91250E-Sentosa"
808 select BOOT_ELF32
809 select DMA_COHERENT
810 select SIBYTE_SB1250
811 select SWAP_IO_SPACE
812 select SYS_HAS_CPU_SB1
813 select SYS_SUPPORTS_BIG_ENDIAN
814 select SYS_SUPPORTS_LITTLE_ENDIAN
815
816config SIBYTE_BIGSUR
817 bool "Sibyte BCM91480B-BigSur"
818 select BOOT_ELF32
819 select DMA_COHERENT
820 select NR_CPUS_DEFAULT_4
821 select SIBYTE_BCM1x80
822 select SWAP_IO_SPACE
823 select SYS_HAS_CPU_SB1
824 select SYS_SUPPORTS_BIG_ENDIAN
825 select SYS_SUPPORTS_HIGHMEM
826 select SYS_SUPPORTS_LITTLE_ENDIAN
827 select ZONE_DMA32 if 64BIT
828
829config SNI_RM
830 bool "SNI RM200/300/400"
831 select FW_ARC if CPU_LITTLE_ENDIAN
832 select FW_ARC32 if CPU_LITTLE_ENDIAN
833 select FW_SNIPROM if CPU_BIG_ENDIAN
834 select ARCH_MAY_HAVE_PC_FDC
835 select BOOT_ELF32
836 select CEVT_R4K
837 select CSRC_R4K
838 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
839 select DMA_NONCOHERENT
840 select GENERIC_ISA_DMA
841 select HAVE_PCSPKR_PLATFORM
842 select HW_HAS_EISA
843 select HW_HAS_PCI
844 select IRQ_MIPS_CPU
845 select I8253
846 select I8259
847 select ISA
848 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
849 select SYS_HAS_CPU_R4X00
850 select SYS_HAS_CPU_R5000
851 select SYS_HAS_CPU_R10000
852 select R5000_CPU_SCACHE
853 select SYS_HAS_EARLY_PRINTK
854 select SYS_SUPPORTS_32BIT_KERNEL
855 select SYS_SUPPORTS_64BIT_KERNEL
856 select SYS_SUPPORTS_BIG_ENDIAN
857 select SYS_SUPPORTS_HIGHMEM
858 select SYS_SUPPORTS_LITTLE_ENDIAN
859 help
860 The SNI RM200/300/400 are MIPS-based machines manufactured by
861 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
862 Technology and now in turn merged with Fujitsu. Say Y here to
863 support this machine type.
864
865config MACH_TX39XX
866 bool "Toshiba TX39 series based machines"
867
868config MACH_TX49XX
869 bool "Toshiba TX49 series based machines"
870
871config MIKROTIK_RB532
872 bool "Mikrotik RB532 boards"
873 select CEVT_R4K
874 select CSRC_R4K
875 select DMA_NONCOHERENT
876 select HW_HAS_PCI
877 select IRQ_MIPS_CPU
878 select SYS_HAS_CPU_MIPS32_R1
879 select SYS_SUPPORTS_32BIT_KERNEL
880 select SYS_SUPPORTS_LITTLE_ENDIAN
881 select SWAP_IO_SPACE
882 select BOOT_RAW
883 select GPIOLIB
884 select MIPS_L1_CACHE_SHIFT_4
885 help
886 Support the Mikrotik(tm) RouterBoard 532 series,
887 based on the IDT RC32434 SoC.
888
889config CAVIUM_OCTEON_SOC
890 bool "Cavium Networks Octeon SoC based boards"
891 select CEVT_R4K
892 select ARCH_PHYS_ADDR_T_64BIT
893 select DMA_COHERENT
894 select SYS_SUPPORTS_64BIT_KERNEL
895 select SYS_SUPPORTS_BIG_ENDIAN
896 select EDAC_SUPPORT
897 select EDAC_ATOMIC_SCRUB
898 select SYS_SUPPORTS_LITTLE_ENDIAN
899 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
900 select SYS_HAS_EARLY_PRINTK
901 select SYS_HAS_CPU_CAVIUM_OCTEON
902 select HW_HAS_PCI
903 select ZONE_DMA32
904 select HOLES_IN_ZONE
905 select GPIOLIB
906 select LIBFDT
907 select USE_OF
908 select ARCH_SPARSEMEM_ENABLE
909 select SYS_SUPPORTS_SMP
910 select NR_CPUS_DEFAULT_16
911 select BUILTIN_DTB
912 select MTD_COMPLEX_MAPPINGS
913 help
914 This option supports all of the Octeon reference boards from Cavium
915 Networks. It builds a kernel that dynamically determines the Octeon
916 CPU type and supports all known board reference implementations.
917 Some of the supported boards are:
918 EBT3000
919 EBH3000
920 EBH3100
921 Thunder
922 Kodama
923 Hikari
924 Say Y here for most Octeon reference boards.
925
926config NLM_XLR_BOARD
927 bool "Netlogic XLR/XLS based systems"
928 select BOOT_ELF32
929 select NLM_COMMON
930 select SYS_HAS_CPU_XLR
931 select SYS_SUPPORTS_SMP
932 select HW_HAS_PCI
933 select SWAP_IO_SPACE
934 select SYS_SUPPORTS_32BIT_KERNEL
935 select SYS_SUPPORTS_64BIT_KERNEL
936 select ARCH_PHYS_ADDR_T_64BIT
937 select SYS_SUPPORTS_BIG_ENDIAN
938 select SYS_SUPPORTS_HIGHMEM
939 select DMA_COHERENT
940 select NR_CPUS_DEFAULT_32
941 select CEVT_R4K
942 select CSRC_R4K
943 select IRQ_MIPS_CPU
944 select ZONE_DMA32 if 64BIT
945 select SYNC_R4K
946 select SYS_HAS_EARLY_PRINTK
947 select SYS_SUPPORTS_ZBOOT
948 select SYS_SUPPORTS_ZBOOT_UART16550
949 help
950 Support for systems based on Netlogic XLR and XLS processors.
951 Say Y here if you have a XLR or XLS based board.
952
953config NLM_XLP_BOARD
954 bool "Netlogic XLP based systems"
955 select BOOT_ELF32
956 select NLM_COMMON
957 select SYS_HAS_CPU_XLP
958 select SYS_SUPPORTS_SMP
959 select HW_HAS_PCI
960 select SYS_SUPPORTS_32BIT_KERNEL
961 select SYS_SUPPORTS_64BIT_KERNEL
962 select ARCH_PHYS_ADDR_T_64BIT
963 select GPIOLIB
964 select SYS_SUPPORTS_BIG_ENDIAN
965 select SYS_SUPPORTS_LITTLE_ENDIAN
966 select SYS_SUPPORTS_HIGHMEM
967 select DMA_COHERENT
968 select NR_CPUS_DEFAULT_32
969 select CEVT_R4K
970 select CSRC_R4K
971 select IRQ_MIPS_CPU
972 select ZONE_DMA32 if 64BIT
973 select SYNC_R4K
974 select SYS_HAS_EARLY_PRINTK
975 select USE_OF
976 select SYS_SUPPORTS_ZBOOT
977 select SYS_SUPPORTS_ZBOOT_UART16550
978 help
979 This board is based on Netlogic XLP Processor.
980 Say Y here if you have a XLP based board.
981
982config MIPS_PARAVIRT
983 bool "Para-Virtualized guest system"
984 select CEVT_R4K
985 select CSRC_R4K
986 select DMA_COHERENT
987 select SYS_SUPPORTS_64BIT_KERNEL
988 select SYS_SUPPORTS_32BIT_KERNEL
989 select SYS_SUPPORTS_BIG_ENDIAN
990 select SYS_SUPPORTS_SMP
991 select NR_CPUS_DEFAULT_4
992 select SYS_HAS_EARLY_PRINTK
993 select SYS_HAS_CPU_MIPS32_R2
994 select SYS_HAS_CPU_MIPS64_R2
995 select SYS_HAS_CPU_CAVIUM_OCTEON
996 select HW_HAS_PCI
997 select SWAP_IO_SPACE
998 help
999 This option supports guest running under ????
1000
1001endchoice
1002
1003source "arch/mips/alchemy/Kconfig"
1004source "arch/mips/ath25/Kconfig"
1005source "arch/mips/ath79/Kconfig"
1006source "arch/mips/bcm47xx/Kconfig"
1007source "arch/mips/bcm63xx/Kconfig"
1008source "arch/mips/bmips/Kconfig"
1009source "arch/mips/generic/Kconfig"
1010source "arch/mips/jazz/Kconfig"
1011source "arch/mips/jz4740/Kconfig"
1012source "arch/mips/lantiq/Kconfig"
1013source "arch/mips/lasat/Kconfig"
1014source "arch/mips/pic32/Kconfig"
1015source "arch/mips/pistachio/Kconfig"
1016source "arch/mips/pmcs-msp71xx/Kconfig"
1017source "arch/mips/ralink/Kconfig"
1018source "arch/mips/sgi-ip27/Kconfig"
1019source "arch/mips/sibyte/Kconfig"
1020source "arch/mips/txx9/Kconfig"
1021source "arch/mips/vr41xx/Kconfig"
1022source "arch/mips/cavium-octeon/Kconfig"
1023source "arch/mips/loongson32/Kconfig"
1024source "arch/mips/loongson64/Kconfig"
1025source "arch/mips/netlogic/Kconfig"
1026source "arch/mips/paravirt/Kconfig"
1027source "arch/mips/xilfpga/Kconfig"
1028
1029endmenu
1030
1031config RWSEM_GENERIC_SPINLOCK
1032 bool
1033 default y
1034
1035config RWSEM_XCHGADD_ALGORITHM
1036 bool
1037
1038config ARCH_HAS_ILOG2_U32
1039 bool
1040 default n
1041
1042config ARCH_HAS_ILOG2_U64
1043 bool
1044 default n
1045
1046config GENERIC_HWEIGHT
1047 bool
1048 default y
1049
1050config GENERIC_CALIBRATE_DELAY
1051 bool
1052 default y
1053
1054config SCHED_OMIT_FRAME_POINTER
1055 bool
1056 default y
1057
1058#
1059# Select some configuration options automatically based on user selections.
1060#
1061config FW_ARC
1062 bool
1063
1064config ARCH_MAY_HAVE_PC_FDC
1065 bool
1066
1067config BOOT_RAW
1068 bool
1069
1070config CEVT_BCM1480
1071 bool
1072
1073config CEVT_DS1287
1074 bool
1075
1076config CEVT_GT641XX
1077 bool
1078
1079config CEVT_R4K
1080 bool
1081
1082config CEVT_SB1250
1083 bool
1084
1085config CEVT_TXX9
1086 bool
1087
1088config CSRC_BCM1480
1089 bool
1090
1091config CSRC_IOASIC
1092 bool
1093
1094config CSRC_R4K
1095 bool
1096
1097config CSRC_SB1250
1098 bool
1099
1100config MIPS_CLOCK_VSYSCALL
1101 def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1102
1103config GPIO_TXX9
1104 select GPIOLIB
1105 bool
1106
1107config FW_CFE
1108 bool
1109
1110config ARCH_DMA_ADDR_T_64BIT
1111 def_bool (HIGHMEM && ARCH_PHYS_ADDR_T_64BIT) || 64BIT
1112
1113config ARCH_SUPPORTS_UPROBES
1114 bool
1115
1116config DMA_MAYBE_COHERENT
1117 select DMA_NONCOHERENT
1118 bool
1119
1120config DMA_PERDEV_COHERENT
1121 bool
1122 select DMA_MAYBE_COHERENT
1123
1124config DMA_COHERENT
1125 bool
1126
1127config DMA_NONCOHERENT
1128 bool
1129 select NEED_DMA_MAP_STATE
1130
1131config NEED_DMA_MAP_STATE
1132 bool
1133
1134config SYS_HAS_EARLY_PRINTK
1135 bool
1136
1137config SYS_SUPPORTS_HOTPLUG_CPU
1138 bool
1139
1140config MIPS_BONITO64
1141 bool
1142
1143config MIPS_MSC
1144 bool
1145
1146config MIPS_NILE4
1147 bool
1148
1149config SYNC_R4K
1150 bool
1151
1152config MIPS_MACHINE
1153 def_bool n
1154
1155config NO_IOPORT_MAP
1156 def_bool n
1157
1158config GENERIC_CSUM
1159 bool
1160
1161config GENERIC_ISA_DMA
1162 bool
1163 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1164 select ISA_DMA_API
1165
1166config GENERIC_ISA_DMA_SUPPORT_BROKEN
1167 bool
1168 select GENERIC_ISA_DMA
1169
1170config ISA_DMA_API
1171 bool
1172
1173config HOLES_IN_ZONE
1174 bool
1175
1176config SYS_SUPPORTS_RELOCATABLE
1177 bool
1178 help
1179 Selected if the platform supports relocating the kernel.
1180 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1181 to allow access to command line and entropy sources.
1182
1183#
1184# Endianness selection. Sufficiently obscure so many users don't know what to
1185# answer,so we try hard to limit the available choices. Also the use of a
1186# choice statement should be more obvious to the user.
1187#
1188choice
1189 prompt "Endianness selection"
1190 help
1191 Some MIPS machines can be configured for either little or big endian
1192 byte order. These modes require different kernels and a different
1193 Linux distribution. In general there is one preferred byteorder for a
1194 particular system but some systems are just as commonly used in the
1195 one or the other endianness.
1196
1197config CPU_BIG_ENDIAN
1198 bool "Big endian"
1199 depends on SYS_SUPPORTS_BIG_ENDIAN
1200
1201config CPU_LITTLE_ENDIAN
1202 bool "Little endian"
1203 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1204
1205endchoice
1206
1207config EXPORT_UASM
1208 bool
1209
1210config SYS_SUPPORTS_APM_EMULATION
1211 bool
1212
1213config SYS_SUPPORTS_BIG_ENDIAN
1214 bool
1215
1216config SYS_SUPPORTS_LITTLE_ENDIAN
1217 bool
1218
1219config SYS_SUPPORTS_HUGETLBFS
1220 bool
1221 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1222 default y
1223
1224config MIPS_HUGE_TLB_SUPPORT
1225 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1226
1227config IRQ_CPU_RM7K
1228 bool
1229
1230config IRQ_MSP_SLP
1231 bool
1232
1233config IRQ_MSP_CIC
1234 bool
1235
1236config IRQ_TXX9
1237 bool
1238
1239config IRQ_GT641XX
1240 bool
1241
1242config PCI_GT64XXX_PCI0
1243 bool
1244
1245config NO_EXCEPT_FILL
1246 bool
1247
1248config SOC_EMMA2RH
1249 bool
1250 select CEVT_R4K
1251 select CSRC_R4K
1252 select DMA_NONCOHERENT
1253 select IRQ_MIPS_CPU
1254 select SWAP_IO_SPACE
1255 select SYS_HAS_CPU_R5500
1256 select SYS_SUPPORTS_32BIT_KERNEL
1257 select SYS_SUPPORTS_64BIT_KERNEL
1258 select SYS_SUPPORTS_BIG_ENDIAN
1259
1260config SOC_PNX833X
1261 bool
1262 select CEVT_R4K
1263 select CSRC_R4K
1264 select IRQ_MIPS_CPU
1265 select DMA_NONCOHERENT
1266 select SYS_HAS_CPU_MIPS32_R2
1267 select SYS_SUPPORTS_32BIT_KERNEL
1268 select SYS_SUPPORTS_LITTLE_ENDIAN
1269 select SYS_SUPPORTS_BIG_ENDIAN
1270 select SYS_SUPPORTS_MIPS16
1271 select CPU_MIPSR2_IRQ_VI
1272
1273config SOC_PNX8335
1274 bool
1275 select SOC_PNX833X
1276
1277config MIPS_SPRAM
1278 bool
1279
1280config SWAP_IO_SPACE
1281 bool
1282
1283config SGI_HAS_INDYDOG
1284 bool
1285
1286config SGI_HAS_HAL2
1287 bool
1288
1289config SGI_HAS_SEEQ
1290 bool
1291
1292config SGI_HAS_WD93
1293 bool
1294
1295config SGI_HAS_ZILOG
1296 bool
1297
1298config SGI_HAS_I8042
1299 bool
1300
1301config DEFAULT_SGI_PARTITION
1302 bool
1303
1304config FW_ARC32
1305 bool
1306
1307config FW_SNIPROM
1308 bool
1309
1310config BOOT_ELF32
1311 bool
1312
1313config MIPS_L1_CACHE_SHIFT_4
1314 bool
1315
1316config MIPS_L1_CACHE_SHIFT_5
1317 bool
1318
1319config MIPS_L1_CACHE_SHIFT_6
1320 bool
1321
1322config MIPS_L1_CACHE_SHIFT_7
1323 bool
1324
1325config MIPS_L1_CACHE_SHIFT
1326 int
1327 default "7" if MIPS_L1_CACHE_SHIFT_7
1328 default "6" if MIPS_L1_CACHE_SHIFT_6
1329 default "5" if MIPS_L1_CACHE_SHIFT_5
1330 default "4" if MIPS_L1_CACHE_SHIFT_4
1331 default "5"
1332
1333config HAVE_STD_PC_SERIAL_PORT
1334 bool
1335
1336config ARC_CONSOLE
1337 bool "ARC console support"
1338 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1339
1340config ARC_MEMORY
1341 bool
1342 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1343 default y
1344
1345config ARC_PROMLIB
1346 bool
1347 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1348 default y
1349
1350config FW_ARC64
1351 bool
1352
1353config BOOT_ELF64
1354 bool
1355
1356menu "CPU selection"
1357
1358choice
1359 prompt "CPU type"
1360 default CPU_R4X00
1361
1362config CPU_LOONGSON3
1363 bool "Loongson 3 CPU"
1364 depends on SYS_HAS_CPU_LOONGSON3
1365 select CPU_SUPPORTS_64BIT_KERNEL
1366 select CPU_SUPPORTS_HIGHMEM
1367 select CPU_SUPPORTS_HUGEPAGES
1368 select WEAK_ORDERING
1369 select WEAK_REORDERING_BEYOND_LLSC
1370 select MIPS_PGD_C0_CONTEXT
1371 select GPIOLIB
1372 help
1373 The Loongson 3 processor implements the MIPS64R2 instruction
1374 set with many extensions.
1375
1376config LOONGSON3_ENHANCEMENT
1377 bool "New Loongson 3 CPU Enhancements"
1378 default n
1379 select CPU_MIPSR2
1380 select CPU_HAS_PREFETCH
1381 depends on CPU_LOONGSON3
1382 help
1383 New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A
1384 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1385 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User
1386 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1387 Fast TLB refill support, etc.
1388
1389 This option enable those enhancements which are not probed at run
1390 time. If you want a generic kernel to run on all Loongson 3 machines,
1391 please say 'N' here. If you want a high-performance kernel to run on
1392 new Loongson 3 machines only, please say 'Y' here.
1393
1394config CPU_LOONGSON2E
1395 bool "Loongson 2E"
1396 depends on SYS_HAS_CPU_LOONGSON2E
1397 select CPU_LOONGSON2
1398 help
1399 The Loongson 2E processor implements the MIPS III instruction set
1400 with many extensions.
1401
1402 It has an internal FPGA northbridge, which is compatible to
1403 bonito64.
1404
1405config CPU_LOONGSON2F
1406 bool "Loongson 2F"
1407 depends on SYS_HAS_CPU_LOONGSON2F
1408 select CPU_LOONGSON2
1409 select GPIOLIB
1410 help
1411 The Loongson 2F processor implements the MIPS III instruction set
1412 with many extensions.
1413
1414 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1415 have a similar programming interface with FPGA northbridge used in
1416 Loongson2E.
1417
1418config CPU_LOONGSON1B
1419 bool "Loongson 1B"
1420 depends on SYS_HAS_CPU_LOONGSON1B
1421 select CPU_LOONGSON1
1422 select LEDS_GPIO_REGISTER
1423 help
1424 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1425 release 2 instruction set.
1426
1427config CPU_LOONGSON1C
1428 bool "Loongson 1C"
1429 depends on SYS_HAS_CPU_LOONGSON1C
1430 select CPU_LOONGSON1
1431 select ARCH_WANT_OPTIONAL_GPIOLIB
1432 select LEDS_GPIO_REGISTER
1433 help
1434 The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1435 release 2 instruction set.
1436
1437config CPU_MIPS32_R1
1438 bool "MIPS32 Release 1"
1439 depends on SYS_HAS_CPU_MIPS32_R1
1440 select CPU_HAS_PREFETCH
1441 select CPU_SUPPORTS_32BIT_KERNEL
1442 select CPU_SUPPORTS_HIGHMEM
1443 help
1444 Choose this option to build a kernel for release 1 or later of the
1445 MIPS32 architecture. Most modern embedded systems with a 32-bit
1446 MIPS processor are based on a MIPS32 processor. If you know the
1447 specific type of processor in your system, choose those that one
1448 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1449 Release 2 of the MIPS32 architecture is available since several
1450 years so chances are you even have a MIPS32 Release 2 processor
1451 in which case you should choose CPU_MIPS32_R2 instead for better
1452 performance.
1453
1454config CPU_MIPS32_R2
1455 bool "MIPS32 Release 2"
1456 depends on SYS_HAS_CPU_MIPS32_R2
1457 select CPU_HAS_PREFETCH
1458 select CPU_SUPPORTS_32BIT_KERNEL
1459 select CPU_SUPPORTS_HIGHMEM
1460 select CPU_SUPPORTS_MSA
1461 select HAVE_KVM
1462 help
1463 Choose this option to build a kernel for release 2 or later of the
1464 MIPS32 architecture. Most modern embedded systems with a 32-bit
1465 MIPS processor are based on a MIPS32 processor. If you know the
1466 specific type of processor in your system, choose those that one
1467 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1468
1469config CPU_MIPS32_R6
1470 bool "MIPS32 Release 6"
1471 depends on SYS_HAS_CPU_MIPS32_R6
1472 select CPU_HAS_PREFETCH
1473 select CPU_SUPPORTS_32BIT_KERNEL
1474 select CPU_SUPPORTS_HIGHMEM
1475 select CPU_SUPPORTS_MSA
1476 select GENERIC_CSUM
1477 select HAVE_KVM
1478 select MIPS_O32_FP64_SUPPORT
1479 help
1480 Choose this option to build a kernel for release 6 or later of the
1481 MIPS32 architecture. New MIPS processors, starting with the Warrior
1482 family, are based on a MIPS32r6 processor. If you own an older
1483 processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1484
1485config CPU_MIPS64_R1
1486 bool "MIPS64 Release 1"
1487 depends on SYS_HAS_CPU_MIPS64_R1
1488 select CPU_HAS_PREFETCH
1489 select CPU_SUPPORTS_32BIT_KERNEL
1490 select CPU_SUPPORTS_64BIT_KERNEL
1491 select CPU_SUPPORTS_HIGHMEM
1492 select CPU_SUPPORTS_HUGEPAGES
1493 help
1494 Choose this option to build a kernel for release 1 or later of the
1495 MIPS64 architecture. Many modern embedded systems with a 64-bit
1496 MIPS processor are based on a MIPS64 processor. If you know the
1497 specific type of processor in your system, choose those that one
1498 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1499 Release 2 of the MIPS64 architecture is available since several
1500 years so chances are you even have a MIPS64 Release 2 processor
1501 in which case you should choose CPU_MIPS64_R2 instead for better
1502 performance.
1503
1504config CPU_MIPS64_R2
1505 bool "MIPS64 Release 2"
1506 depends on SYS_HAS_CPU_MIPS64_R2
1507 select CPU_HAS_PREFETCH
1508 select CPU_SUPPORTS_32BIT_KERNEL
1509 select CPU_SUPPORTS_64BIT_KERNEL
1510 select CPU_SUPPORTS_HIGHMEM
1511 select CPU_SUPPORTS_HUGEPAGES
1512 select CPU_SUPPORTS_MSA
1513 select HAVE_KVM
1514 help
1515 Choose this option to build a kernel for release 2 or later of the
1516 MIPS64 architecture. Many modern embedded systems with a 64-bit
1517 MIPS processor are based on a MIPS64 processor. If you know the
1518 specific type of processor in your system, choose those that one
1519 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1520
1521config CPU_MIPS64_R6
1522 bool "MIPS64 Release 6"
1523 depends on SYS_HAS_CPU_MIPS64_R6
1524 select CPU_HAS_PREFETCH
1525 select CPU_SUPPORTS_32BIT_KERNEL
1526 select CPU_SUPPORTS_64BIT_KERNEL
1527 select CPU_SUPPORTS_HIGHMEM
1528 select CPU_SUPPORTS_MSA
1529 select GENERIC_CSUM
1530 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1531 select HAVE_KVM
1532 help
1533 Choose this option to build a kernel for release 6 or later of the
1534 MIPS64 architecture. New MIPS processors, starting with the Warrior
1535 family, are based on a MIPS64r6 processor. If you own an older
1536 processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1537
1538config CPU_R3000
1539 bool "R3000"
1540 depends on SYS_HAS_CPU_R3000
1541 select CPU_HAS_WB
1542 select CPU_SUPPORTS_32BIT_KERNEL
1543 select CPU_SUPPORTS_HIGHMEM
1544 help
1545 Please make sure to pick the right CPU type. Linux/MIPS is not
1546 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1547 *not* work on R4000 machines and vice versa. However, since most
1548 of the supported machines have an R4000 (or similar) CPU, R4x00
1549 might be a safe bet. If the resulting kernel does not work,
1550 try to recompile with R3000.
1551
1552config CPU_TX39XX
1553 bool "R39XX"
1554 depends on SYS_HAS_CPU_TX39XX
1555 select CPU_SUPPORTS_32BIT_KERNEL
1556
1557config CPU_VR41XX
1558 bool "R41xx"
1559 depends on SYS_HAS_CPU_VR41XX
1560 select CPU_SUPPORTS_32BIT_KERNEL
1561 select CPU_SUPPORTS_64BIT_KERNEL
1562 help
1563 The options selects support for the NEC VR4100 series of processors.
1564 Only choose this option if you have one of these processors as a
1565 kernel built with this option will not run on any other type of
1566 processor or vice versa.
1567
1568config CPU_R4300
1569 bool "R4300"
1570 depends on SYS_HAS_CPU_R4300
1571 select CPU_SUPPORTS_32BIT_KERNEL
1572 select CPU_SUPPORTS_64BIT_KERNEL
1573 help
1574 MIPS Technologies R4300-series processors.
1575
1576config CPU_R4X00
1577 bool "R4x00"
1578 depends on SYS_HAS_CPU_R4X00
1579 select CPU_SUPPORTS_32BIT_KERNEL
1580 select CPU_SUPPORTS_64BIT_KERNEL
1581 select CPU_SUPPORTS_HUGEPAGES
1582 help
1583 MIPS Technologies R4000-series processors other than 4300, including
1584 the R4000, R4400, R4600, and 4700.
1585
1586config CPU_TX49XX
1587 bool "R49XX"
1588 depends on SYS_HAS_CPU_TX49XX
1589 select CPU_HAS_PREFETCH
1590 select CPU_SUPPORTS_32BIT_KERNEL
1591 select CPU_SUPPORTS_64BIT_KERNEL
1592 select CPU_SUPPORTS_HUGEPAGES
1593
1594config CPU_R5000
1595 bool "R5000"
1596 depends on SYS_HAS_CPU_R5000
1597 select CPU_SUPPORTS_32BIT_KERNEL
1598 select CPU_SUPPORTS_64BIT_KERNEL
1599 select CPU_SUPPORTS_HUGEPAGES
1600 help
1601 MIPS Technologies R5000-series processors other than the Nevada.
1602
1603config CPU_R5432
1604 bool "R5432"
1605 depends on SYS_HAS_CPU_R5432
1606 select CPU_SUPPORTS_32BIT_KERNEL
1607 select CPU_SUPPORTS_64BIT_KERNEL
1608 select CPU_SUPPORTS_HUGEPAGES
1609
1610config CPU_R5500
1611 bool "R5500"
1612 depends on SYS_HAS_CPU_R5500
1613 select CPU_SUPPORTS_32BIT_KERNEL
1614 select CPU_SUPPORTS_64BIT_KERNEL
1615 select CPU_SUPPORTS_HUGEPAGES
1616 help
1617 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1618 instruction set.
1619
1620config CPU_R6000
1621 bool "R6000"
1622 depends on SYS_HAS_CPU_R6000
1623 select CPU_SUPPORTS_32BIT_KERNEL
1624 help
1625 MIPS Technologies R6000 and R6000A series processors. Note these
1626 processors are extremely rare and the support for them is incomplete.
1627
1628config CPU_NEVADA
1629 bool "RM52xx"
1630 depends on SYS_HAS_CPU_NEVADA
1631 select CPU_SUPPORTS_32BIT_KERNEL
1632 select CPU_SUPPORTS_64BIT_KERNEL
1633 select CPU_SUPPORTS_HUGEPAGES
1634 help
1635 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1636
1637config CPU_R8000
1638 bool "R8000"
1639 depends on SYS_HAS_CPU_R8000
1640 select CPU_HAS_PREFETCH
1641 select CPU_SUPPORTS_64BIT_KERNEL
1642 help
1643 MIPS Technologies R8000 processors. Note these processors are
1644 uncommon and the support for them is incomplete.
1645
1646config CPU_R10000
1647 bool "R10000"
1648 depends on SYS_HAS_CPU_R10000
1649 select CPU_HAS_PREFETCH
1650 select CPU_SUPPORTS_32BIT_KERNEL
1651 select CPU_SUPPORTS_64BIT_KERNEL
1652 select CPU_SUPPORTS_HIGHMEM
1653 select CPU_SUPPORTS_HUGEPAGES
1654 help
1655 MIPS Technologies R10000-series processors.
1656
1657config CPU_RM7000
1658 bool "RM7000"
1659 depends on SYS_HAS_CPU_RM7000
1660 select CPU_HAS_PREFETCH
1661 select CPU_SUPPORTS_32BIT_KERNEL
1662 select CPU_SUPPORTS_64BIT_KERNEL
1663 select CPU_SUPPORTS_HIGHMEM
1664 select CPU_SUPPORTS_HUGEPAGES
1665
1666config CPU_SB1
1667 bool "SB1"
1668 depends on SYS_HAS_CPU_SB1
1669 select CPU_SUPPORTS_32BIT_KERNEL
1670 select CPU_SUPPORTS_64BIT_KERNEL
1671 select CPU_SUPPORTS_HIGHMEM
1672 select CPU_SUPPORTS_HUGEPAGES
1673 select WEAK_ORDERING
1674
1675config CPU_CAVIUM_OCTEON
1676 bool "Cavium Octeon processor"
1677 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1678 select CPU_HAS_PREFETCH
1679 select CPU_SUPPORTS_64BIT_KERNEL
1680 select WEAK_ORDERING
1681 select CPU_SUPPORTS_HIGHMEM
1682 select CPU_SUPPORTS_HUGEPAGES
1683 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1684 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1685 select MIPS_L1_CACHE_SHIFT_7
1686 help
1687 The Cavium Octeon processor is a highly integrated chip containing
1688 many ethernet hardware widgets for networking tasks. The processor
1689 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1690 Full details can be found at http://www.caviumnetworks.com.
1691
1692config CPU_BMIPS
1693 bool "Broadcom BMIPS"
1694 depends on SYS_HAS_CPU_BMIPS
1695 select CPU_MIPS32
1696 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1697 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1698 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1699 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1700 select CPU_SUPPORTS_32BIT_KERNEL
1701 select DMA_NONCOHERENT
1702 select IRQ_MIPS_CPU
1703 select SWAP_IO_SPACE
1704 select WEAK_ORDERING
1705 select CPU_SUPPORTS_HIGHMEM
1706 select CPU_HAS_PREFETCH
1707 help
1708 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1709
1710config CPU_XLR
1711 bool "Netlogic XLR SoC"
1712 depends on SYS_HAS_CPU_XLR
1713 select CPU_SUPPORTS_32BIT_KERNEL
1714 select CPU_SUPPORTS_64BIT_KERNEL
1715 select CPU_SUPPORTS_HIGHMEM
1716 select CPU_SUPPORTS_HUGEPAGES
1717 select WEAK_ORDERING
1718 select WEAK_REORDERING_BEYOND_LLSC
1719 help
1720 Netlogic Microsystems XLR/XLS processors.
1721
1722config CPU_XLP
1723 bool "Netlogic XLP SoC"
1724 depends on SYS_HAS_CPU_XLP
1725 select CPU_SUPPORTS_32BIT_KERNEL
1726 select CPU_SUPPORTS_64BIT_KERNEL
1727 select CPU_SUPPORTS_HIGHMEM
1728 select WEAK_ORDERING
1729 select WEAK_REORDERING_BEYOND_LLSC
1730 select CPU_HAS_PREFETCH
1731 select CPU_MIPSR2
1732 select CPU_SUPPORTS_HUGEPAGES
1733 select MIPS_ASID_BITS_VARIABLE
1734 help
1735 Netlogic Microsystems XLP processors.
1736endchoice
1737
1738config CPU_MIPS32_3_5_FEATURES
1739 bool "MIPS32 Release 3.5 Features"
1740 depends on SYS_HAS_CPU_MIPS32_R3_5
1741 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1742 help
1743 Choose this option to build a kernel for release 2 or later of the
1744 MIPS32 architecture including features from the 3.5 release such as
1745 support for Enhanced Virtual Addressing (EVA).
1746
1747config CPU_MIPS32_3_5_EVA
1748 bool "Enhanced Virtual Addressing (EVA)"
1749 depends on CPU_MIPS32_3_5_FEATURES
1750 select EVA
1751 default y
1752 help
1753 Choose this option if you want to enable the Enhanced Virtual
1754 Addressing (EVA) on your MIPS32 core (such as proAptiv).
1755 One of its primary benefits is an increase in the maximum size
1756 of lowmem (up to 3GB). If unsure, say 'N' here.
1757
1758config CPU_MIPS32_R5_FEATURES
1759 bool "MIPS32 Release 5 Features"
1760 depends on SYS_HAS_CPU_MIPS32_R5
1761 depends on CPU_MIPS32_R2
1762 help
1763 Choose this option to build a kernel for release 2 or later of the
1764 MIPS32 architecture including features from release 5 such as
1765 support for Extended Physical Addressing (XPA).
1766
1767config CPU_MIPS32_R5_XPA
1768 bool "Extended Physical Addressing (XPA)"
1769 depends on CPU_MIPS32_R5_FEATURES
1770 depends on !EVA
1771 depends on !PAGE_SIZE_4KB
1772 depends on SYS_SUPPORTS_HIGHMEM
1773 select XPA
1774 select HIGHMEM
1775 select ARCH_PHYS_ADDR_T_64BIT
1776 default n
1777 help
1778 Choose this option if you want to enable the Extended Physical
1779 Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1780 benefit is to increase physical addressing equal to or greater
1781 than 40 bits. Note that this has the side effect of turning on
1782 64-bit addressing which in turn makes the PTEs 64-bit in size.
1783 If unsure, say 'N' here.
1784
1785if CPU_LOONGSON2F
1786config CPU_NOP_WORKAROUNDS
1787 bool
1788
1789config CPU_JUMP_WORKAROUNDS
1790 bool
1791
1792config CPU_LOONGSON2F_WORKAROUNDS
1793 bool "Loongson 2F Workarounds"
1794 default y
1795 select CPU_NOP_WORKAROUNDS
1796 select CPU_JUMP_WORKAROUNDS
1797 help
1798 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1799 require workarounds. Without workarounds the system may hang
1800 unexpectedly. For more information please refer to the gas
1801 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1802
1803 Loongson 2F03 and later have fixed these issues and no workarounds
1804 are needed. The workarounds have no significant side effect on them
1805 but may decrease the performance of the system so this option should
1806 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1807 systems.
1808
1809 If unsure, please say Y.
1810endif # CPU_LOONGSON2F
1811
1812config SYS_SUPPORTS_ZBOOT
1813 bool
1814 select HAVE_KERNEL_GZIP
1815 select HAVE_KERNEL_BZIP2
1816 select HAVE_KERNEL_LZ4
1817 select HAVE_KERNEL_LZMA
1818 select HAVE_KERNEL_LZO
1819 select HAVE_KERNEL_XZ
1820
1821config SYS_SUPPORTS_ZBOOT_UART16550
1822 bool
1823 select SYS_SUPPORTS_ZBOOT
1824
1825config SYS_SUPPORTS_ZBOOT_UART_PROM
1826 bool
1827 select SYS_SUPPORTS_ZBOOT
1828
1829config CPU_LOONGSON2
1830 bool
1831 select CPU_SUPPORTS_32BIT_KERNEL
1832 select CPU_SUPPORTS_64BIT_KERNEL
1833 select CPU_SUPPORTS_HIGHMEM
1834 select CPU_SUPPORTS_HUGEPAGES
1835
1836config CPU_LOONGSON1
1837 bool
1838 select CPU_MIPS32
1839 select CPU_MIPSR2
1840 select CPU_HAS_PREFETCH
1841 select CPU_SUPPORTS_32BIT_KERNEL
1842 select CPU_SUPPORTS_HIGHMEM
1843 select CPU_SUPPORTS_CPUFREQ
1844
1845config CPU_BMIPS32_3300
1846 select SMP_UP if SMP
1847 bool
1848
1849config CPU_BMIPS4350
1850 bool
1851 select SYS_SUPPORTS_SMP
1852 select SYS_SUPPORTS_HOTPLUG_CPU
1853
1854config CPU_BMIPS4380
1855 bool
1856 select MIPS_L1_CACHE_SHIFT_6
1857 select SYS_SUPPORTS_SMP
1858 select SYS_SUPPORTS_HOTPLUG_CPU
1859 select CPU_HAS_RIXI
1860
1861config CPU_BMIPS5000
1862 bool
1863 select MIPS_CPU_SCACHE
1864 select MIPS_L1_CACHE_SHIFT_7
1865 select SYS_SUPPORTS_SMP
1866 select SYS_SUPPORTS_HOTPLUG_CPU
1867 select CPU_HAS_RIXI
1868
1869config SYS_HAS_CPU_LOONGSON3
1870 bool
1871 select CPU_SUPPORTS_CPUFREQ
1872 select CPU_HAS_RIXI
1873
1874config SYS_HAS_CPU_LOONGSON2E
1875 bool
1876
1877config SYS_HAS_CPU_LOONGSON2F
1878 bool
1879 select CPU_SUPPORTS_CPUFREQ
1880 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1881 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1882
1883config SYS_HAS_CPU_LOONGSON1B
1884 bool
1885
1886config SYS_HAS_CPU_LOONGSON1C
1887 bool
1888
1889config SYS_HAS_CPU_MIPS32_R1
1890 bool
1891
1892config SYS_HAS_CPU_MIPS32_R2
1893 bool
1894
1895config SYS_HAS_CPU_MIPS32_R3_5
1896 bool
1897
1898config SYS_HAS_CPU_MIPS32_R5
1899 bool
1900
1901config SYS_HAS_CPU_MIPS32_R6
1902 bool
1903
1904config SYS_HAS_CPU_MIPS64_R1
1905 bool
1906
1907config SYS_HAS_CPU_MIPS64_R2
1908 bool
1909
1910config SYS_HAS_CPU_MIPS64_R6
1911 bool
1912
1913config SYS_HAS_CPU_R3000
1914 bool
1915
1916config SYS_HAS_CPU_TX39XX
1917 bool
1918
1919config SYS_HAS_CPU_VR41XX
1920 bool
1921
1922config SYS_HAS_CPU_R4300
1923 bool
1924
1925config SYS_HAS_CPU_R4X00
1926 bool
1927
1928config SYS_HAS_CPU_TX49XX
1929 bool
1930
1931config SYS_HAS_CPU_R5000
1932 bool
1933
1934config SYS_HAS_CPU_R5432
1935 bool
1936
1937config SYS_HAS_CPU_R5500
1938 bool
1939
1940config SYS_HAS_CPU_R6000
1941 bool
1942
1943config SYS_HAS_CPU_NEVADA
1944 bool
1945
1946config SYS_HAS_CPU_R8000
1947 bool
1948
1949config SYS_HAS_CPU_R10000
1950 bool
1951
1952config SYS_HAS_CPU_RM7000
1953 bool
1954
1955config SYS_HAS_CPU_SB1
1956 bool
1957
1958config SYS_HAS_CPU_CAVIUM_OCTEON
1959 bool
1960
1961config SYS_HAS_CPU_BMIPS
1962 bool
1963
1964config SYS_HAS_CPU_BMIPS32_3300
1965 bool
1966 select SYS_HAS_CPU_BMIPS
1967
1968config SYS_HAS_CPU_BMIPS4350
1969 bool
1970 select SYS_HAS_CPU_BMIPS
1971
1972config SYS_HAS_CPU_BMIPS4380
1973 bool
1974 select SYS_HAS_CPU_BMIPS
1975
1976config SYS_HAS_CPU_BMIPS5000
1977 bool
1978 select SYS_HAS_CPU_BMIPS
1979
1980config SYS_HAS_CPU_XLR
1981 bool
1982
1983config SYS_HAS_CPU_XLP
1984 bool
1985
1986config MIPS_MALTA_PM
1987 depends on MIPS_MALTA
1988 depends on PCI
1989 bool
1990 default y
1991
1992#
1993# CPU may reorder R->R, R->W, W->R, W->W
1994# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1995#
1996config WEAK_ORDERING
1997 bool
1998
1999#
2000# CPU may reorder reads and writes beyond LL/SC
2001# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
2002#
2003config WEAK_REORDERING_BEYOND_LLSC
2004 bool
2005endmenu
2006
2007#
2008# These two indicate any level of the MIPS32 and MIPS64 architecture
2009#
2010config CPU_MIPS32
2011 bool
2012 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
2013
2014config CPU_MIPS64
2015 bool
2016 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
2017
2018#
2019# These two indicate the revision of the architecture, either Release 1 or Release 2
2020#
2021config CPU_MIPSR1
2022 bool
2023 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
2024
2025config CPU_MIPSR2
2026 bool
2027 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2028 select CPU_HAS_RIXI
2029 select MIPS_SPRAM
2030
2031config CPU_MIPSR6
2032 bool
2033 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2034 select CPU_HAS_RIXI
2035 select HAVE_ARCH_BITREVERSE
2036 select MIPS_ASID_BITS_VARIABLE
2037 select MIPS_SPRAM
2038
2039config EVA
2040 bool
2041
2042config XPA
2043 bool
2044
2045config SYS_SUPPORTS_32BIT_KERNEL
2046 bool
2047config SYS_SUPPORTS_64BIT_KERNEL
2048 bool
2049config CPU_SUPPORTS_32BIT_KERNEL
2050 bool
2051config CPU_SUPPORTS_64BIT_KERNEL
2052 bool
2053config CPU_SUPPORTS_CPUFREQ
2054 bool
2055config CPU_SUPPORTS_ADDRWINCFG
2056 bool
2057config CPU_SUPPORTS_HUGEPAGES
2058 bool
2059config CPU_SUPPORTS_UNCACHED_ACCELERATED
2060 bool
2061config MIPS_PGD_C0_CONTEXT
2062 bool
2063 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
2064
2065#
2066# Set to y for ptrace access to watch registers.
2067#
2068config HARDWARE_WATCHPOINTS
2069 bool
2070 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2071
2072menu "Kernel type"
2073
2074choice
2075 prompt "Kernel code model"
2076 help
2077 You should only select this option if you have a workload that
2078 actually benefits from 64-bit processing or if your machine has
2079 large memory. You will only be presented a single option in this
2080 menu if your system does not support both 32-bit and 64-bit kernels.
2081
2082config 32BIT
2083 bool "32-bit kernel"
2084 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2085 select TRAD_SIGNALS
2086 help
2087 Select this option if you want to build a 32-bit kernel.
2088
2089config 64BIT
2090 bool "64-bit kernel"
2091 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2092 help
2093 Select this option if you want to build a 64-bit kernel.
2094
2095endchoice
2096
2097config KVM_GUEST
2098 bool "KVM Guest Kernel"
2099 depends on BROKEN_ON_SMP
2100 help
2101 Select this option if building a guest kernel for KVM (Trap & Emulate)
2102 mode.
2103
2104config KVM_GUEST_TIMER_FREQ
2105 int "Count/Compare Timer Frequency (MHz)"
2106 depends on KVM_GUEST
2107 default 100
2108 help
2109 Set this to non-zero if building a guest kernel for KVM to skip RTC
2110 emulation when determining guest CPU Frequency. Instead, the guest's
2111 timer frequency is specified directly.
2112
2113config MIPS_VA_BITS_48
2114 bool "48 bits virtual memory"
2115 depends on 64BIT
2116 help
2117 Support a maximum at least 48 bits of application virtual memory.
2118 Default is 40 bits or less, depending on the CPU.
2119 This option result in a small memory overhead for page tables.
2120 This option is only supported with 16k and 64k page sizes.
2121 If unsure, say N.
2122
2123choice
2124 prompt "Kernel page size"
2125 default PAGE_SIZE_4KB
2126
2127config PAGE_SIZE_4KB
2128 bool "4kB"
2129 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
2130 depends on !MIPS_VA_BITS_48
2131 help
2132 This option select the standard 4kB Linux page size. On some
2133 R3000-family processors this is the only available page size. Using
2134 4kB page size will minimize memory consumption and is therefore
2135 recommended for low memory systems.
2136
2137config PAGE_SIZE_8KB
2138 bool "8kB"
2139 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
2140 depends on !MIPS_VA_BITS_48
2141 help
2142 Using 8kB page size will result in higher performance kernel at
2143 the price of higher memory consumption. This option is available
2144 only on R8000 and cnMIPS processors. Note that you will need a
2145 suitable Linux distribution to support this.
2146
2147config PAGE_SIZE_16KB
2148 bool "16kB"
2149 depends on !CPU_R3000 && !CPU_TX39XX
2150 help
2151 Using 16kB page size will result in higher performance kernel at
2152 the price of higher memory consumption. This option is available on
2153 all non-R3000 family processors. Note that you will need a suitable
2154 Linux distribution to support this.
2155
2156config PAGE_SIZE_32KB
2157 bool "32kB"
2158 depends on CPU_CAVIUM_OCTEON
2159 depends on !MIPS_VA_BITS_48
2160 help
2161 Using 32kB page size will result in higher performance kernel at
2162 the price of higher memory consumption. This option is available
2163 only on cnMIPS cores. Note that you will need a suitable Linux
2164 distribution to support this.
2165
2166config PAGE_SIZE_64KB
2167 bool "64kB"
2168 depends on !CPU_R3000 && !CPU_TX39XX && !CPU_R6000
2169 help
2170 Using 64kB page size will result in higher performance kernel at
2171 the price of higher memory consumption. This option is available on
2172 all non-R3000 family processor. Not that at the time of this
2173 writing this option is still high experimental.
2174
2175endchoice
2176
2177config FORCE_MAX_ZONEORDER
2178 int "Maximum zone order"
2179 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2180 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2181 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2182 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2183 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2184 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2185 range 11 64
2186 default "11"
2187 help
2188 The kernel memory allocator divides physically contiguous memory
2189 blocks into "zones", where each zone is a power of two number of
2190 pages. This option selects the largest power of two that the kernel
2191 keeps in the memory allocator. If you need to allocate very large
2192 blocks of physically contiguous memory, then you may need to
2193 increase this value.
2194
2195 This config option is actually maximum order plus one. For example,
2196 a value of 11 means that the largest free memory block is 2^10 pages.
2197
2198 The page size is not necessarily 4KB. Keep this in mind
2199 when choosing a value for this option.
2200
2201config BOARD_SCACHE
2202 bool
2203
2204config IP22_CPU_SCACHE
2205 bool
2206 select BOARD_SCACHE
2207
2208#
2209# Support for a MIPS32 / MIPS64 style S-caches
2210#
2211config MIPS_CPU_SCACHE
2212 bool
2213 select BOARD_SCACHE
2214
2215config R5000_CPU_SCACHE
2216 bool
2217 select BOARD_SCACHE
2218
2219config RM7000_CPU_SCACHE
2220 bool
2221 select BOARD_SCACHE
2222
2223config SIBYTE_DMA_PAGEOPS
2224 bool "Use DMA to clear/copy pages"
2225 depends on CPU_SB1
2226 help
2227 Instead of using the CPU to zero and copy pages, use a Data Mover
2228 channel. These DMA channels are otherwise unused by the standard
2229 SiByte Linux port. Seems to give a small performance benefit.
2230
2231config CPU_HAS_PREFETCH
2232 bool
2233
2234config CPU_GENERIC_DUMP_TLB
2235 bool
2236 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
2237
2238config CPU_R4K_FPU
2239 bool
2240 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2241
2242config CPU_R4K_CACHE_TLB
2243 bool
2244 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2245
2246config MIPS_MT_SMP
2247 bool "MIPS MT SMP support (1 TC on each available VPE)"
2248 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6
2249 select CPU_MIPSR2_IRQ_VI
2250 select CPU_MIPSR2_IRQ_EI
2251 select SYNC_R4K
2252 select MIPS_MT
2253 select SMP
2254 select SMP_UP
2255 select SYS_SUPPORTS_SMP
2256 select SYS_SUPPORTS_SCHED_SMT
2257 select MIPS_PERF_SHARED_TC_COUNTERS
2258 help
2259 This is a kernel model which is known as SMVP. This is supported
2260 on cores with the MT ASE and uses the available VPEs to implement
2261 virtual processors which supports SMP. This is equivalent to the
2262 Intel Hyperthreading feature. For further information go to
2263 <http://www.imgtec.com/mips/mips-multithreading.asp>.
2264
2265config MIPS_MT
2266 bool
2267
2268config SCHED_SMT
2269 bool "SMT (multithreading) scheduler support"
2270 depends on SYS_SUPPORTS_SCHED_SMT
2271 default n
2272 help
2273 SMT scheduler support improves the CPU scheduler's decision making
2274 when dealing with MIPS MT enabled cores at a cost of slightly
2275 increased overhead in some places. If unsure say N here.
2276
2277config SYS_SUPPORTS_SCHED_SMT
2278 bool
2279
2280config SYS_SUPPORTS_MULTITHREADING
2281 bool
2282
2283config MIPS_MT_FPAFF
2284 bool "Dynamic FPU affinity for FP-intensive threads"
2285 default y
2286 depends on MIPS_MT_SMP
2287
2288config MIPSR2_TO_R6_EMULATOR
2289 bool "MIPS R2-to-R6 emulator"
2290 depends on CPU_MIPSR6 && !SMP
2291 default y
2292 help
2293 Choose this option if you want to run non-R6 MIPS userland code.
2294 Even if you say 'Y' here, the emulator will still be disabled by
2295 default. You can enable it using the 'mipsr2emu' kernel option.
2296 The only reason this is a build-time option is to save ~14K from the
2297 final kernel image.
2298comment "MIPS R2-to-R6 emulator is only available for UP kernels"
2299 depends on SMP && CPU_MIPSR6
2300
2301config MIPS_VPE_LOADER
2302 bool "VPE loader support."
2303 depends on SYS_SUPPORTS_MULTITHREADING && MODULES
2304 select CPU_MIPSR2_IRQ_VI
2305 select CPU_MIPSR2_IRQ_EI
2306 select MIPS_MT
2307 help
2308 Includes a loader for loading an elf relocatable object
2309 onto another VPE and running it.
2310
2311config MIPS_VPE_LOADER_CMP
2312 bool
2313 default "y"
2314 depends on MIPS_VPE_LOADER && MIPS_CMP
2315
2316config MIPS_VPE_LOADER_MT
2317 bool
2318 default "y"
2319 depends on MIPS_VPE_LOADER && !MIPS_CMP
2320
2321config MIPS_VPE_LOADER_TOM
2322 bool "Load VPE program into memory hidden from linux"
2323 depends on MIPS_VPE_LOADER
2324 default y
2325 help
2326 The loader can use memory that is present but has been hidden from
2327 Linux using the kernel command line option "mem=xxMB". It's up to
2328 you to ensure the amount you put in the option and the space your
2329 program requires is less or equal to the amount physically present.
2330
2331config MIPS_VPE_APSP_API
2332 bool "Enable support for AP/SP API (RTLX)"
2333 depends on MIPS_VPE_LOADER
2334 help
2335
2336config MIPS_VPE_APSP_API_CMP
2337 bool
2338 default "y"
2339 depends on MIPS_VPE_APSP_API && MIPS_CMP
2340
2341config MIPS_VPE_APSP_API_MT
2342 bool
2343 default "y"
2344 depends on MIPS_VPE_APSP_API && !MIPS_CMP
2345
2346config MIPS_CMP
2347 bool "MIPS CMP framework support (DEPRECATED)"
2348 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2349 select SMP
2350 select SYNC_R4K
2351 select SYS_SUPPORTS_SMP
2352 select WEAK_ORDERING
2353 default n
2354 help
2355 Select this if you are using a bootloader which implements the "CMP
2356 framework" protocol (ie. YAMON) and want your kernel to make use of
2357 its ability to start secondary CPUs.
2358
2359 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2360 instead of this.
2361
2362config MIPS_CPS
2363 bool "MIPS Coherent Processing System support"
2364 depends on SYS_SUPPORTS_MIPS_CPS
2365 select MIPS_CM
2366 select MIPS_CPC
2367 select MIPS_CPS_PM if HOTPLUG_CPU
2368 select SMP
2369 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2370 select SYS_SUPPORTS_HOTPLUG_CPU
2371 select SYS_SUPPORTS_SMP
2372 select WEAK_ORDERING
2373 help
2374 Select this if you wish to run an SMP kernel across multiple cores
2375 within a MIPS Coherent Processing System. When this option is
2376 enabled the kernel will probe for other cores and boot them with
2377 no external assistance. It is safe to enable this when hardware
2378 support is unavailable.
2379
2380config MIPS_CPS_PM
2381 depends on MIPS_CPS
2382 select MIPS_CPC
2383 bool
2384
2385config MIPS_CM
2386 bool
2387
2388config MIPS_CPC
2389 bool
2390
2391config SB1_PASS_2_WORKAROUNDS
2392 bool
2393 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2394 default y
2395
2396config SB1_PASS_2_1_WORKAROUNDS
2397 bool
2398 depends on CPU_SB1 && CPU_SB1_PASS_2
2399 default y
2400
2401
2402config ARCH_PHYS_ADDR_T_64BIT
2403 bool
2404
2405choice
2406 prompt "SmartMIPS or microMIPS ASE support"
2407
2408config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2409 bool "None"
2410 help
2411 Select this if you want neither microMIPS nor SmartMIPS support
2412
2413config CPU_HAS_SMARTMIPS
2414 depends on SYS_SUPPORTS_SMARTMIPS
2415 bool "SmartMIPS"
2416 help
2417 SmartMIPS is a extension of the MIPS32 architecture aimed at
2418 increased security at both hardware and software level for
2419 smartcards. Enabling this option will allow proper use of the
2420 SmartMIPS instructions by Linux applications. However a kernel with
2421 this option will not work on a MIPS core without SmartMIPS core. If
2422 you don't know you probably don't have SmartMIPS and should say N
2423 here.
2424
2425config CPU_MICROMIPS
2426 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2427 bool "microMIPS"
2428 help
2429 When this option is enabled the kernel will be built using the
2430 microMIPS ISA
2431
2432endchoice
2433
2434config CPU_HAS_MSA
2435 bool "Support for the MIPS SIMD Architecture"
2436 depends on CPU_SUPPORTS_MSA
2437 depends on 64BIT || MIPS_O32_FP64_SUPPORT
2438 help
2439 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2440 and a set of SIMD instructions to operate on them. When this option
2441 is enabled the kernel will support allocating & switching MSA
2442 vector register contexts. If you know that your kernel will only be
2443 running on CPUs which do not support MSA or that your userland will
2444 not be making use of it then you may wish to say N here to reduce
2445 the size & complexity of your kernel.
2446
2447 If unsure, say Y.
2448
2449config CPU_HAS_WB
2450 bool
2451
2452config XKS01
2453 bool
2454
2455config CPU_HAS_RIXI
2456 bool
2457
2458#
2459# Vectored interrupt mode is an R2 feature
2460#
2461config CPU_MIPSR2_IRQ_VI
2462 bool
2463
2464#
2465# Extended interrupt mode is an R2 feature
2466#
2467config CPU_MIPSR2_IRQ_EI
2468 bool
2469
2470config CPU_HAS_SYNC
2471 bool
2472 depends on !CPU_R3000
2473 default y
2474
2475#
2476# CPU non-features
2477#
2478config CPU_DADDI_WORKAROUNDS
2479 bool
2480
2481config CPU_R4000_WORKAROUNDS
2482 bool
2483 select CPU_R4400_WORKAROUNDS
2484
2485config CPU_R4400_WORKAROUNDS
2486 bool
2487
2488config MIPS_ASID_SHIFT
2489 int
2490 default 6 if CPU_R3000 || CPU_TX39XX
2491 default 4 if CPU_R8000
2492 default 0
2493
2494config MIPS_ASID_BITS
2495 int
2496 default 0 if MIPS_ASID_BITS_VARIABLE
2497 default 6 if CPU_R3000 || CPU_TX39XX
2498 default 8
2499
2500config MIPS_ASID_BITS_VARIABLE
2501 bool
2502
2503#
2504# - Highmem only makes sense for the 32-bit kernel.
2505# - The current highmem code will only work properly on physically indexed
2506# caches such as R3000, SB1, R7000 or those that look like they're virtually
2507# indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2508# moment we protect the user and offer the highmem option only on machines
2509# where it's known to be safe. This will not offer highmem on a few systems
2510# such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2511# indexed CPUs but we're playing safe.
2512# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2513# know they might have memory configurations that could make use of highmem
2514# support.
2515#
2516config HIGHMEM
2517 bool "High Memory Support"
2518 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2519
2520config CPU_SUPPORTS_HIGHMEM
2521 bool
2522
2523config SYS_SUPPORTS_HIGHMEM
2524 bool
2525
2526config SYS_SUPPORTS_SMARTMIPS
2527 bool
2528
2529config SYS_SUPPORTS_MICROMIPS
2530 bool
2531
2532config SYS_SUPPORTS_MIPS16
2533 bool
2534 help
2535 This option must be set if a kernel might be executed on a MIPS16-
2536 enabled CPU even if MIPS16 is not actually being used. In other
2537 words, it makes the kernel MIPS16-tolerant.
2538
2539config CPU_SUPPORTS_MSA
2540 bool
2541
2542config ARCH_FLATMEM_ENABLE
2543 def_bool y
2544 depends on !NUMA && !CPU_LOONGSON2
2545
2546config ARCH_DISCONTIGMEM_ENABLE
2547 bool
2548 default y if SGI_IP27
2549 help
2550 Say Y to support efficient handling of discontiguous physical memory,
2551 for architectures which are either NUMA (Non-Uniform Memory Access)
2552 or have huge holes in the physical address space for other reasons.
2553 See <file:Documentation/vm/numa> for more.
2554
2555config ARCH_SPARSEMEM_ENABLE
2556 bool
2557 select SPARSEMEM_STATIC
2558
2559config NUMA
2560 bool "NUMA Support"
2561 depends on SYS_SUPPORTS_NUMA
2562 help
2563 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2564 Access). This option improves performance on systems with more
2565 than two nodes; on two node systems it is generally better to
2566 leave it disabled; on single node systems disable this option
2567 disabled.
2568
2569config SYS_SUPPORTS_NUMA
2570 bool
2571
2572config RELOCATABLE
2573 bool "Relocatable kernel"
2574 depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6)
2575 help
2576 This builds a kernel image that retains relocation information
2577 so it can be loaded someplace besides the default 1MB.
2578 The relocations make the kernel binary about 15% larger,
2579 but are discarded at runtime
2580
2581config RELOCATION_TABLE_SIZE
2582 hex "Relocation table size"
2583 depends on RELOCATABLE
2584 range 0x0 0x01000000
2585 default "0x00100000"
2586 ---help---
2587 A table of relocation data will be appended to the kernel binary
2588 and parsed at boot to fix up the relocated kernel.
2589
2590 This option allows the amount of space reserved for the table to be
2591 adjusted, although the default of 1Mb should be ok in most cases.
2592
2593 The build will fail and a valid size suggested if this is too small.
2594
2595 If unsure, leave at the default value.
2596
2597config RANDOMIZE_BASE
2598 bool "Randomize the address of the kernel image"
2599 depends on RELOCATABLE
2600 ---help---
2601 Randomizes the physical and virtual address at which the
2602 kernel image is loaded, as a security feature that
2603 deters exploit attempts relying on knowledge of the location
2604 of kernel internals.
2605
2606 Entropy is generated using any coprocessor 0 registers available.
2607
2608 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2609
2610 If unsure, say N.
2611
2612config RANDOMIZE_BASE_MAX_OFFSET
2613 hex "Maximum kASLR offset" if EXPERT
2614 depends on RANDOMIZE_BASE
2615 range 0x0 0x40000000 if EVA || 64BIT
2616 range 0x0 0x08000000
2617 default "0x01000000"
2618 ---help---
2619 When kASLR is active, this provides the maximum offset that will
2620 be applied to the kernel image. It should be set according to the
2621 amount of physical RAM available in the target system minus
2622 PHYSICAL_START and must be a power of 2.
2623
2624 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2625 EVA or 64-bit. The default is 16Mb.
2626
2627config NODES_SHIFT
2628 int
2629 default "6"
2630 depends on NEED_MULTIPLE_NODES
2631
2632config HW_PERF_EVENTS
2633 bool "Enable hardware performance counter support for perf events"
2634 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2635 default y
2636 help
2637 Enable hardware performance counter support for perf events. If
2638 disabled, perf events will use software events only.
2639
2640source "mm/Kconfig"
2641
2642config SMP
2643 bool "Multi-Processing support"
2644 depends on SYS_SUPPORTS_SMP
2645 help
2646 This enables support for systems with more than one CPU. If you have
2647 a system with only one CPU, say N. If you have a system with more
2648 than one CPU, say Y.
2649
2650 If you say N here, the kernel will run on uni- and multiprocessor
2651 machines, but will use only one CPU of a multiprocessor machine. If
2652 you say Y here, the kernel will run on many, but not all,
2653 uniprocessor machines. On a uniprocessor machine, the kernel
2654 will run faster if you say N here.
2655
2656 People using multiprocessor machines who say Y here should also say
2657 Y to "Enhanced Real Time Clock Support", below.
2658
2659 See also the SMP-HOWTO available at
2660 <http://www.tldp.org/docs.html#howto>.
2661
2662 If you don't know what to do here, say N.
2663
2664config HOTPLUG_CPU
2665 bool "Support for hot-pluggable CPUs"
2666 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2667 help
2668 Say Y here to allow turning CPUs off and on. CPUs can be
2669 controlled through /sys/devices/system/cpu.
2670 (Note: power management support will enable this option
2671 automatically on SMP systems. )
2672 Say N if you want to disable CPU hotplug.
2673
2674config SMP_UP
2675 bool
2676
2677config SYS_SUPPORTS_MIPS_CMP
2678 bool
2679
2680config SYS_SUPPORTS_MIPS_CPS
2681 bool
2682
2683config SYS_SUPPORTS_SMP
2684 bool
2685
2686config NR_CPUS_DEFAULT_4
2687 bool
2688
2689config NR_CPUS_DEFAULT_8
2690 bool
2691
2692config NR_CPUS_DEFAULT_16
2693 bool
2694
2695config NR_CPUS_DEFAULT_32
2696 bool
2697
2698config NR_CPUS_DEFAULT_64
2699 bool
2700
2701config NR_CPUS
2702 int "Maximum number of CPUs (2-256)"
2703 range 2 256
2704 depends on SMP
2705 default "4" if NR_CPUS_DEFAULT_4
2706 default "8" if NR_CPUS_DEFAULT_8
2707 default "16" if NR_CPUS_DEFAULT_16
2708 default "32" if NR_CPUS_DEFAULT_32
2709 default "64" if NR_CPUS_DEFAULT_64
2710 help
2711 This allows you to specify the maximum number of CPUs which this
2712 kernel will support. The maximum supported value is 32 for 32-bit
2713 kernel and 64 for 64-bit kernels; the minimum value which makes
2714 sense is 1 for Qemu (useful only for kernel debugging purposes)
2715 and 2 for all others.
2716
2717 This is purely to save memory - each supported CPU adds
2718 approximately eight kilobytes to the kernel image. For best
2719 performance should round up your number of processors to the next
2720 power of two.
2721
2722config MIPS_PERF_SHARED_TC_COUNTERS
2723 bool
2724
2725#
2726# Timer Interrupt Frequency Configuration
2727#
2728
2729choice
2730 prompt "Timer frequency"
2731 default HZ_250
2732 help
2733 Allows the configuration of the timer frequency.
2734
2735 config HZ_24
2736 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2737
2738 config HZ_48
2739 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2740
2741 config HZ_100
2742 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2743
2744 config HZ_128
2745 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2746
2747 config HZ_250
2748 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2749
2750 config HZ_256
2751 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2752
2753 config HZ_1000
2754 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2755
2756 config HZ_1024
2757 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2758
2759endchoice
2760
2761config SYS_SUPPORTS_24HZ
2762 bool
2763
2764config SYS_SUPPORTS_48HZ
2765 bool
2766
2767config SYS_SUPPORTS_100HZ
2768 bool
2769
2770config SYS_SUPPORTS_128HZ
2771 bool
2772
2773config SYS_SUPPORTS_250HZ
2774 bool
2775
2776config SYS_SUPPORTS_256HZ
2777 bool
2778
2779config SYS_SUPPORTS_1000HZ
2780 bool
2781
2782config SYS_SUPPORTS_1024HZ
2783 bool
2784
2785config SYS_SUPPORTS_ARBIT_HZ
2786 bool
2787 default y if !SYS_SUPPORTS_24HZ && \
2788 !SYS_SUPPORTS_48HZ && \
2789 !SYS_SUPPORTS_100HZ && \
2790 !SYS_SUPPORTS_128HZ && \
2791 !SYS_SUPPORTS_250HZ && \
2792 !SYS_SUPPORTS_256HZ && \
2793 !SYS_SUPPORTS_1000HZ && \
2794 !SYS_SUPPORTS_1024HZ
2795
2796config HZ
2797 int
2798 default 24 if HZ_24
2799 default 48 if HZ_48
2800 default 100 if HZ_100
2801 default 128 if HZ_128
2802 default 250 if HZ_250
2803 default 256 if HZ_256
2804 default 1000 if HZ_1000
2805 default 1024 if HZ_1024
2806
2807config SCHED_HRTICK
2808 def_bool HIGH_RES_TIMERS
2809
2810source "kernel/Kconfig.preempt"
2811
2812config KEXEC
2813 bool "Kexec system call"
2814 select KEXEC_CORE
2815 help
2816 kexec is a system call that implements the ability to shutdown your
2817 current kernel, and to start another kernel. It is like a reboot
2818 but it is independent of the system firmware. And like a reboot
2819 you can start any kernel with it, not just Linux.
2820
2821 The name comes from the similarity to the exec system call.
2822
2823 It is an ongoing process to be certain the hardware in a machine
2824 is properly shutdown, so do not be surprised if this code does not
2825 initially work for you. As of this writing the exact hardware
2826 interface is strongly in flux, so no good recommendation can be
2827 made.
2828
2829config CRASH_DUMP
2830 bool "Kernel crash dumps"
2831 help
2832 Generate crash dump after being started by kexec.
2833 This should be normally only set in special crash dump kernels
2834 which are loaded in the main kernel with kexec-tools into
2835 a specially reserved region and then later executed after
2836 a crash by kdump/kexec. The crash dump kernel must be compiled
2837 to a memory address not used by the main kernel or firmware using
2838 PHYSICAL_START.
2839
2840config PHYSICAL_START
2841 hex "Physical address where the kernel is loaded"
2842 default "0xffffffff84000000" if 64BIT
2843 default "0x84000000" if 32BIT
2844 depends on CRASH_DUMP
2845 help
2846 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2847 If you plan to use kernel for capturing the crash dump change
2848 this value to start of the reserved region (the "X" value as
2849 specified in the "crashkernel=YM@XM" command line boot parameter
2850 passed to the panic-ed kernel).
2851
2852config SECCOMP
2853 bool "Enable seccomp to safely compute untrusted bytecode"
2854 depends on PROC_FS
2855 default y
2856 help
2857 This kernel feature is useful for number crunching applications
2858 that may need to compute untrusted bytecode during their
2859 execution. By using pipes or other transports made available to
2860 the process as file descriptors supporting the read/write
2861 syscalls, it's possible to isolate those applications in
2862 their own address space using seccomp. Once seccomp is
2863 enabled via /proc/<pid>/seccomp, it cannot be disabled
2864 and the task is only allowed to execute a few safe syscalls
2865 defined by each seccomp mode.
2866
2867 If unsure, say Y. Only embedded should say N here.
2868
2869config MIPS_O32_FP64_SUPPORT
2870 bool "Support for O32 binaries using 64-bit FP"
2871 depends on 32BIT || MIPS32_O32
2872 help
2873 When this is enabled, the kernel will support use of 64-bit floating
2874 point registers with binaries using the O32 ABI along with the
2875 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2876 32-bit MIPS systems this support is at the cost of increasing the
2877 size and complexity of the compiled FPU emulator. Thus if you are
2878 running a MIPS32 system and know that none of your userland binaries
2879 will require 64-bit floating point, you may wish to reduce the size
2880 of your kernel & potentially improve FP emulation performance by
2881 saying N here.
2882
2883 Although binutils currently supports use of this flag the details
2884 concerning its effect upon the O32 ABI in userland are still being
2885 worked on. In order to avoid userland becoming dependant upon current
2886 behaviour before the details have been finalised, this option should
2887 be considered experimental and only enabled by those working upon
2888 said details.
2889
2890 If unsure, say N.
2891
2892config USE_OF
2893 bool
2894 select OF
2895 select OF_EARLY_FLATTREE
2896 select IRQ_DOMAIN
2897
2898config BUILTIN_DTB
2899 bool
2900
2901choice
2902 prompt "Kernel appended dtb support" if USE_OF
2903 default MIPS_NO_APPENDED_DTB
2904
2905 config MIPS_NO_APPENDED_DTB
2906 bool "None"
2907 help
2908 Do not enable appended dtb support.
2909
2910 config MIPS_ELF_APPENDED_DTB
2911 bool "vmlinux"
2912 help
2913 With this option, the boot code will look for a device tree binary
2914 DTB) included in the vmlinux ELF section .appended_dtb. By default
2915 it is empty and the DTB can be appended using binutils command
2916 objcopy:
2917
2918 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
2919
2920 This is meant as a backward compatiblity convenience for those
2921 systems with a bootloader that can't be upgraded to accommodate
2922 the documented boot protocol using a device tree.
2923
2924 config MIPS_RAW_APPENDED_DTB
2925 bool "vmlinux.bin or vmlinuz.bin"
2926 help
2927 With this option, the boot code will look for a device tree binary
2928 DTB) appended to raw vmlinux.bin or vmlinuz.bin.
2929 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
2930
2931 This is meant as a backward compatibility convenience for those
2932 systems with a bootloader that can't be upgraded to accommodate
2933 the documented boot protocol using a device tree.
2934
2935 Beware that there is very little in terms of protection against
2936 this option being confused by leftover garbage in memory that might
2937 look like a DTB header after a reboot if no actual DTB is appended
2938 to vmlinux.bin. Do not leave this option active in a production kernel
2939 if you don't intend to always append a DTB.
2940endchoice
2941
2942choice
2943 prompt "Kernel command line type" if !CMDLINE_OVERRIDE
2944 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
2945 !MIPS_MALTA && \
2946 !CAVIUM_OCTEON_SOC
2947 default MIPS_CMDLINE_FROM_BOOTLOADER
2948
2949 config MIPS_CMDLINE_FROM_DTB
2950 depends on USE_OF
2951 bool "Dtb kernel arguments if available"
2952
2953 config MIPS_CMDLINE_DTB_EXTEND
2954 depends on USE_OF
2955 bool "Extend dtb kernel arguments with bootloader arguments"
2956
2957 config MIPS_CMDLINE_FROM_BOOTLOADER
2958 bool "Bootloader kernel arguments if available"
2959
2960 config MIPS_CMDLINE_BUILTIN_EXTEND
2961 depends on CMDLINE_BOOL
2962 bool "Extend builtin kernel arguments with bootloader arguments"
2963endchoice
2964
2965endmenu
2966
2967config LOCKDEP_SUPPORT
2968 bool
2969 default y
2970
2971config STACKTRACE_SUPPORT
2972 bool
2973 default y
2974
2975config HAVE_LATENCYTOP_SUPPORT
2976 bool
2977 default y
2978
2979config PGTABLE_LEVELS
2980 int
2981 default 3 if 64BIT && !PAGE_SIZE_64KB
2982 default 2
2983
2984source "init/Kconfig"
2985
2986source "kernel/Kconfig.freezer"
2987
2988menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2989
2990config HW_HAS_EISA
2991 bool
2992config HW_HAS_PCI
2993 bool
2994
2995config PCI
2996 bool "Support for PCI controller"
2997 depends on HW_HAS_PCI
2998 select PCI_DOMAINS
2999 help
3000 Find out whether you have a PCI motherboard. PCI is the name of a
3001 bus system, i.e. the way the CPU talks to the other stuff inside
3002 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
3003 say Y, otherwise N.
3004
3005config HT_PCI
3006 bool "Support for HT-linked PCI"
3007 default y
3008 depends on CPU_LOONGSON3
3009 select PCI
3010 select PCI_DOMAINS
3011 help
3012 Loongson family machines use Hyper-Transport bus for inter-core
3013 connection and device connection. The PCI bus is a subordinate
3014 linked at HT. Choose Y for Loongson-3 based machines.
3015
3016config PCI_DOMAINS
3017 bool
3018
3019config PCI_DOMAINS_GENERIC
3020 bool
3021
3022config PCI_DRIVERS_GENERIC
3023 select PCI_DOMAINS_GENERIC if PCI_DOMAINS
3024 bool
3025
3026config PCI_DRIVERS_LEGACY
3027 def_bool !PCI_DRIVERS_GENERIC
3028 select NO_GENERIC_PCI_IOPORT_MAP
3029
3030source "drivers/pci/Kconfig"
3031
3032#
3033# ISA support is now enabled via select. Too many systems still have the one
3034# or other ISA chip on the board that users don't know about so don't expect
3035# users to choose the right thing ...
3036#
3037config ISA
3038 bool
3039
3040config EISA
3041 bool "EISA support"
3042 depends on HW_HAS_EISA
3043 select ISA
3044 select GENERIC_ISA_DMA
3045 ---help---
3046 The Extended Industry Standard Architecture (EISA) bus was
3047 developed as an open alternative to the IBM MicroChannel bus.
3048
3049 The EISA bus provided some of the features of the IBM MicroChannel
3050 bus while maintaining backward compatibility with cards made for
3051 the older ISA bus. The EISA bus saw limited use between 1988 and
3052 1995 when it was made obsolete by the PCI bus.
3053
3054 Say Y here if you are building a kernel for an EISA-based machine.
3055
3056 Otherwise, say N.
3057
3058source "drivers/eisa/Kconfig"
3059
3060config TC
3061 bool "TURBOchannel support"
3062 depends on MACH_DECSTATION
3063 help
3064 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3065 processors. TURBOchannel programming specifications are available
3066 at:
3067 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3068 and:
3069 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3070 Linux driver support status is documented at:
3071 <http://www.linux-mips.org/wiki/DECstation>
3072
3073config MMU
3074 bool
3075 default y
3076
3077config I8253
3078 bool
3079 select CLKSRC_I8253
3080 select CLKEVT_I8253
3081 select MIPS_EXTERNAL_TIMER
3082
3083config ZONE_DMA
3084 bool
3085
3086config ZONE_DMA32
3087 bool
3088
3089source "drivers/pcmcia/Kconfig"
3090
3091config RAPIDIO
3092 tristate "RapidIO support"
3093 depends on PCI
3094 default n
3095 help
3096 If you say Y here, the kernel will include drivers and
3097 infrastructure code to support RapidIO interconnect devices.
3098
3099source "drivers/rapidio/Kconfig"
3100
3101endmenu
3102
3103menu "Executable file formats"
3104
3105source "fs/Kconfig.binfmt"
3106
3107config TRAD_SIGNALS
3108 bool
3109
3110config MIPS32_COMPAT
3111 bool
3112
3113config COMPAT
3114 bool
3115
3116config SYSVIPC_COMPAT
3117 bool
3118
3119config MIPS32_O32
3120 bool "Kernel support for o32 binaries"
3121 depends on 64BIT
3122 select ARCH_WANT_OLD_COMPAT_IPC
3123 select COMPAT
3124 select MIPS32_COMPAT
3125 select SYSVIPC_COMPAT if SYSVIPC
3126 help
3127 Select this option if you want to run o32 binaries. These are pure
3128 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
3129 existing binaries are in this format.
3130
3131 If unsure, say Y.
3132
3133config MIPS32_N32
3134 bool "Kernel support for n32 binaries"
3135 depends on 64BIT
3136 select COMPAT
3137 select MIPS32_COMPAT
3138 select SYSVIPC_COMPAT if SYSVIPC
3139 help
3140 Select this option if you want to run n32 binaries. These are
3141 64-bit binaries using 32-bit quantities for addressing and certain
3142 data that would normally be 64-bit. They are used in special
3143 cases.
3144
3145 If unsure, say N.
3146
3147config BINFMT_ELF32
3148 bool
3149 default y if MIPS32_O32 || MIPS32_N32
3150 select ELFCORE
3151
3152endmenu
3153
3154menu "Power management options"
3155
3156config ARCH_HIBERNATION_POSSIBLE
3157 def_bool y
3158 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3159
3160config ARCH_SUSPEND_POSSIBLE
3161 def_bool y
3162 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3163
3164source "kernel/power/Kconfig"
3165
3166endmenu
3167
3168config MIPS_EXTERNAL_TIMER
3169 bool
3170
3171menu "CPU Power Management"
3172
3173if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3174source "drivers/cpufreq/Kconfig"
3175endif
3176
3177source "drivers/cpuidle/Kconfig"
3178
3179endmenu
3180
3181source "net/Kconfig"
3182
3183source "drivers/Kconfig"
3184
3185source "drivers/firmware/Kconfig"
3186
3187source "fs/Kconfig"
3188
3189source "arch/mips/Kconfig.debug"
3190
3191source "security/Kconfig"
3192
3193source "crypto/Kconfig"
3194
3195source "lib/Kconfig"
3196
3197source "arch/mips/kvm/Kconfig"