1
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_ELF_RANDOMIZE
9 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
10 select ARCH_HAS_UBSAN_SANITIZE_ALL
11 select ARCH_SUPPORTS_UPROBES
12 select ARCH_USE_BUILTIN_BSWAP
13 select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
14 select ARCH_USE_QUEUED_RWLOCKS
15 select ARCH_USE_QUEUED_SPINLOCKS
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_IOMAP
26 select GENERIC_IRQ_PROBE
27 select GENERIC_IRQ_SHOW
28 select GENERIC_ISA_DMA if EISA
29 select GENERIC_LIB_ASHLDI3
30 select GENERIC_LIB_ASHRDI3
31 select GENERIC_LIB_CMPDI2
32 select GENERIC_LIB_LSHRDI3
33 select GENERIC_LIB_UCMPDI2
34 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
35 select GENERIC_SMP_IDLE_THREAD
36 select GENERIC_TIME_VSYSCALL
37 select GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT
38 select HANDLE_DOMAIN_IRQ
39 select HAVE_ARCH_COMPILER_H
40 select HAVE_ARCH_JUMP_LABEL
41 select HAVE_ARCH_KGDB
42 select HAVE_ARCH_MMAP_RND_BITS if MMU
43 select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
44 select HAVE_ARCH_SECCOMP_FILTER
45 select HAVE_ARCH_TRACEHOOK
46 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
47 select HAVE_EBPF_JIT if (!CPU_MICROMIPS)
48 select HAVE_CONTEXT_TRACKING
49 select HAVE_COPY_THREAD_TLS
50 select HAVE_C_RECORDMCOUNT
51 select HAVE_DEBUG_KMEMLEAK
52 select HAVE_DEBUG_STACKOVERFLOW
53 select HAVE_DMA_CONTIGUOUS
54 select HAVE_DYNAMIC_FTRACE
55 select HAVE_EXIT_THREAD
56 select HAVE_FAST_GUP
57 select HAVE_FTRACE_MCOUNT_RECORD
58 select HAVE_FUNCTION_GRAPH_TRACER
59 select HAVE_FUNCTION_TRACER
60 select HAVE_IDE
61 select HAVE_IOREMAP_PROT
62 select HAVE_IRQ_EXIT_ON_IRQ_STACK
63 select HAVE_IRQ_TIME_ACCOUNTING
64 select HAVE_KPROBES
65 select HAVE_KRETPROBES
66 select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
67 select HAVE_MEMBLOCK_NODE_MAP
68 select HAVE_MOD_ARCH_SPECIFIC
69 select HAVE_NMI
70 select HAVE_OPROFILE
71 select HAVE_PERF_EVENTS
72 select HAVE_REGS_AND_STACK_ACCESS_API
73 select HAVE_RSEQ
74 select HAVE_STACKPROTECTOR
75 select HAVE_SYSCALL_TRACEPOINTS
76 select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
77 select IRQ_FORCED_THREADING
78 select ISA if EISA
79 select MODULES_USE_ELF_RELA if MODULES && 64BIT
80 select MODULES_USE_ELF_REL if MODULES
81 select PERF_USE_VMALLOC
82 select RTC_LIB
83 select SYSCTL_EXCEPTION_TRACE
84 select VIRT_TO_BUS
85
86menu "Machine selection"
87
88choice
89 prompt "System type"
90 default MIPS_GENERIC
91
92config MIPS_GENERIC
93 bool "Generic board-agnostic MIPS kernel"
94 select BOOT_RAW
95 select BUILTIN_DTB
96 select CEVT_R4K
97 select CLKSRC_MIPS_GIC
98 select COMMON_CLK
99 select CPU_MIPSR2_IRQ_VI
100 select CPU_MIPSR2_IRQ_EI
101 select CSRC_R4K
102 select DMA_PERDEV_COHERENT
103 select HAVE_PCI
104 select IRQ_MIPS_CPU
105 select LIBFDT
106 select MIPS_AUTO_PFN_OFFSET
107 select MIPS_CPU_SCACHE
108 select MIPS_GIC
109 select MIPS_L1_CACHE_SHIFT_7
110 select NO_EXCEPT_FILL
111 select PCI_DRIVERS_GENERIC
112 select PINCTRL
113 select SMP_UP if SMP
114 select SWAP_IO_SPACE
115 select SYS_HAS_CPU_MIPS32_R1
116 select SYS_HAS_CPU_MIPS32_R2
117 select SYS_HAS_CPU_MIPS32_R6
118 select SYS_HAS_CPU_MIPS64_R1
119 select SYS_HAS_CPU_MIPS64_R2
120 select SYS_HAS_CPU_MIPS64_R6
121 select SYS_SUPPORTS_32BIT_KERNEL
122 select SYS_SUPPORTS_64BIT_KERNEL
123 select SYS_SUPPORTS_BIG_ENDIAN
124 select SYS_SUPPORTS_HIGHMEM
125 select SYS_SUPPORTS_LITTLE_ENDIAN
126 select SYS_SUPPORTS_MICROMIPS
127 select SYS_SUPPORTS_MIPS_CPS
128 select SYS_SUPPORTS_MIPS16
129 select SYS_SUPPORTS_MULTITHREADING
130 select SYS_SUPPORTS_RELOCATABLE
131 select SYS_SUPPORTS_SMARTMIPS
132 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
133 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
134 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
135 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
136 select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
137 select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
138 select USE_OF
139 select UHI_BOOT
140 help
141 Select this to build a kernel which aims to support multiple boards,
142 generally using a flattened device tree passed from the bootloader
143 using the boot protocol defined in the UHI (Unified Hosting
144 Interface) specification.
145
146config MIPS_ALCHEMY
147 bool "Alchemy processor based machines"
148 select PHYS_ADDR_T_64BIT
149 select CEVT_R4K
150 select CSRC_R4K
151 select IRQ_MIPS_CPU
152 select DMA_MAYBE_COHERENT
153 select SYS_HAS_CPU_MIPS32_R1
154 select SYS_SUPPORTS_32BIT_KERNEL
155 select SYS_SUPPORTS_APM_EMULATION
156 select GPIOLIB
157 select SYS_SUPPORTS_ZBOOT
158 select COMMON_CLK
159
160config AR7
161 bool "Texas Instruments AR7"
162 select BOOT_ELF32
163 select DMA_NONCOHERENT
164 select CEVT_R4K
165 select CSRC_R4K
166 select IRQ_MIPS_CPU
167 select NO_EXCEPT_FILL
168 select SWAP_IO_SPACE
169 select SYS_HAS_CPU_MIPS32_R1
170 select SYS_HAS_EARLY_PRINTK
171 select SYS_SUPPORTS_32BIT_KERNEL
172 select SYS_SUPPORTS_LITTLE_ENDIAN
173 select SYS_SUPPORTS_MIPS16
174 select SYS_SUPPORTS_ZBOOT_UART16550
175 select GPIOLIB
176 select VLYNQ
177 select HAVE_CLK
178 help
179 Support for the Texas Instruments AR7 System-on-a-Chip
180 family: TNETD7100, 7200 and 7300.
181
182config ATH25
183 bool "Atheros AR231x/AR531x SoC support"
184 select CEVT_R4K
185 select CSRC_R4K
186 select DMA_NONCOHERENT
187 select IRQ_MIPS_CPU
188 select IRQ_DOMAIN
189 select SYS_HAS_CPU_MIPS32_R1
190 select SYS_SUPPORTS_BIG_ENDIAN
191 select SYS_SUPPORTS_32BIT_KERNEL
192 select SYS_HAS_EARLY_PRINTK
193 help
194 Support for Atheros AR231x and Atheros AR531x based boards
195
196config ATH79
197 bool "Atheros AR71XX/AR724X/AR913X based boards"
198 select ARCH_HAS_RESET_CONTROLLER
199 select BOOT_RAW
200 select CEVT_R4K
201 select CSRC_R4K
202 select DMA_NONCOHERENT
203 select GPIOLIB
204 select PINCTRL
205 select HAVE_CLK
206 select COMMON_CLK
207 select CLKDEV_LOOKUP
208 select IRQ_MIPS_CPU
209 select SYS_HAS_CPU_MIPS32_R2
210 select SYS_HAS_EARLY_PRINTK
211 select SYS_SUPPORTS_32BIT_KERNEL
212 select SYS_SUPPORTS_BIG_ENDIAN
213 select SYS_SUPPORTS_MIPS16
214 select SYS_SUPPORTS_ZBOOT_UART_PROM
215 select USE_OF
216 select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM
217 help
218 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
219
220config BMIPS_GENERIC
221 bool "Broadcom Generic BMIPS kernel"
222 select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
223 select ARCH_HAS_PHYS_TO_DMA
224 select BOOT_RAW
225 select NO_EXCEPT_FILL
226 select USE_OF
227 select CEVT_R4K
228 select CSRC_R4K
229 select SYNC_R4K
230 select COMMON_CLK
231 select BCM6345_L1_IRQ
232 select BCM7038_L1_IRQ
233 select BCM7120_L2_IRQ
234 select BRCMSTB_L2_IRQ
235 select IRQ_MIPS_CPU
236 select DMA_NONCOHERENT
237 select SYS_SUPPORTS_32BIT_KERNEL
238 select SYS_SUPPORTS_LITTLE_ENDIAN
239 select SYS_SUPPORTS_BIG_ENDIAN
240 select SYS_SUPPORTS_HIGHMEM
241 select SYS_HAS_CPU_BMIPS32_3300
242 select SYS_HAS_CPU_BMIPS4350
243 select SYS_HAS_CPU_BMIPS4380
244 select SYS_HAS_CPU_BMIPS5000
245 select SWAP_IO_SPACE
246 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
247 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
248 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
249 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
250 select HARDIRQS_SW_RESEND
251 help
252 Build a generic DT-based kernel image that boots on select
253 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
254 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
255 must be set appropriately for your board.
256
257config BCM47XX
258 bool "Broadcom BCM47XX based boards"
259 select BOOT_RAW
260 select CEVT_R4K
261 select CSRC_R4K
262 select DMA_NONCOHERENT
263 select HAVE_PCI
264 select IRQ_MIPS_CPU
265 select SYS_HAS_CPU_MIPS32_R1
266 select NO_EXCEPT_FILL
267 select SYS_SUPPORTS_32BIT_KERNEL
268 select SYS_SUPPORTS_LITTLE_ENDIAN
269 select SYS_SUPPORTS_MIPS16
270 select SYS_SUPPORTS_ZBOOT
271 select SYS_HAS_EARLY_PRINTK
272 select USE_GENERIC_EARLY_PRINTK_8250
273 select GPIOLIB
274 select LEDS_GPIO_REGISTER
275 select BCM47XX_NVRAM
276 select BCM47XX_SPROM
277 select BCM47XX_SSB if !BCM47XX_BCMA
278 help
279 Support for BCM47XX based boards
280
281config BCM63XX
282 bool "Broadcom BCM63XX based boards"
283 select BOOT_RAW
284 select CEVT_R4K
285 select CSRC_R4K
286 select SYNC_R4K
287 select DMA_NONCOHERENT
288 select IRQ_MIPS_CPU
289 select SYS_SUPPORTS_32BIT_KERNEL
290 select SYS_SUPPORTS_BIG_ENDIAN
291 select SYS_HAS_EARLY_PRINTK
292 select SWAP_IO_SPACE
293 select GPIOLIB
294 select HAVE_CLK
295 select MIPS_L1_CACHE_SHIFT_4
296 select CLKDEV_LOOKUP
297 help
298 Support for BCM63XX based boards
299
300config MIPS_COBALT
301 bool "Cobalt Server"
302 select CEVT_R4K
303 select CSRC_R4K
304 select CEVT_GT641XX
305 select DMA_NONCOHERENT
306 select FORCE_PCI
307 select I8253
308 select I8259
309 select IRQ_MIPS_CPU
310 select IRQ_GT641XX
311 select PCI_GT64XXX_PCI0
312 select SYS_HAS_CPU_NEVADA
313 select SYS_HAS_EARLY_PRINTK
314 select SYS_SUPPORTS_32BIT_KERNEL
315 select SYS_SUPPORTS_64BIT_KERNEL
316 select SYS_SUPPORTS_LITTLE_ENDIAN
317 select USE_GENERIC_EARLY_PRINTK_8250
318
319config MACH_DECSTATION
320 bool "DECstations"
321 select BOOT_ELF32
322 select CEVT_DS1287
323 select CEVT_R4K if CPU_R4X00
324 select CSRC_IOASIC
325 select CSRC_R4K if CPU_R4X00
326 select CPU_DADDI_WORKAROUNDS if 64BIT
327 select CPU_R4000_WORKAROUNDS if 64BIT
328 select CPU_R4400_WORKAROUNDS if 64BIT
329 select DMA_NONCOHERENT
330 select NO_IOPORT_MAP
331 select IRQ_MIPS_CPU
332 select SYS_HAS_CPU_R3000
333 select SYS_HAS_CPU_R4X00
334 select SYS_SUPPORTS_32BIT_KERNEL
335 select SYS_SUPPORTS_64BIT_KERNEL
336 select SYS_SUPPORTS_LITTLE_ENDIAN
337 select SYS_SUPPORTS_128HZ
338 select SYS_SUPPORTS_256HZ
339 select SYS_SUPPORTS_1024HZ
340 select MIPS_L1_CACHE_SHIFT_4
341 help
342 This enables support for DEC's MIPS based workstations. For details
343 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
344 DECstation porting pages on <http://decstation.unix-ag.org/>.
345
346 If you have one of the following DECstation Models you definitely
347 want to choose R4xx0 for the CPU Type:
348
349 DECstation 5000/50
350 DECstation 5000/150
351 DECstation 5000/260
352 DECsystem 5900/260
353
354 otherwise choose R3000.
355
356config MACH_JAZZ
357 bool "Jazz family of machines"
358 select ARCH_MIGHT_HAVE_PC_PARPORT
359 select ARCH_MIGHT_HAVE_PC_SERIO
360 select FW_ARC
361 select FW_ARC32
362 select ARCH_MAY_HAVE_PC_FDC
363 select CEVT_R4K
364 select CSRC_R4K
365 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
366 select GENERIC_ISA_DMA
367 select HAVE_PCSPKR_PLATFORM
368 select IRQ_MIPS_CPU
369 select I8253
370 select I8259
371 select ISA
372 select SYS_HAS_CPU_R4X00
373 select SYS_SUPPORTS_32BIT_KERNEL
374 select SYS_SUPPORTS_64BIT_KERNEL
375 select SYS_SUPPORTS_100HZ
376 help
377 This a family of machines based on the MIPS R4030 chipset which was
378 used by several vendors to build RISC/os and Windows NT workstations.
379 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
380 Olivetti M700-10 workstations.
381
382config MACH_INGENIC
383 bool "Ingenic SoC based machines"
384 select SYS_SUPPORTS_32BIT_KERNEL
385 select SYS_SUPPORTS_LITTLE_ENDIAN
386 select SYS_SUPPORTS_ZBOOT_UART16550
387 select DMA_NONCOHERENT
388 select IRQ_MIPS_CPU
389 select PINCTRL
390 select GPIOLIB
391 select COMMON_CLK
392 select GENERIC_IRQ_CHIP
393 select BUILTIN_DTB if MIPS_NO_APPENDED_DTB
394 select USE_OF
395 select LIBFDT
396
397config LANTIQ
398 bool "Lantiq based platforms"
399 select DMA_NONCOHERENT
400 select IRQ_MIPS_CPU
401 select CEVT_R4K
402 select CSRC_R4K
403 select SYS_HAS_CPU_MIPS32_R1
404 select SYS_HAS_CPU_MIPS32_R2
405 select SYS_SUPPORTS_BIG_ENDIAN
406 select SYS_SUPPORTS_32BIT_KERNEL
407 select SYS_SUPPORTS_MIPS16
408 select SYS_SUPPORTS_MULTITHREADING
409 select SYS_SUPPORTS_VPE_LOADER
410 select SYS_HAS_EARLY_PRINTK
411 select GPIOLIB
412 select SWAP_IO_SPACE
413 select BOOT_RAW
414 select CLKDEV_LOOKUP
415 select USE_OF
416 select PINCTRL
417 select PINCTRL_LANTIQ
418 select ARCH_HAS_RESET_CONTROLLER
419 select RESET_CONTROLLER
420
421config LASAT
422 bool "LASAT Networks platforms"
423 select CEVT_R4K
424 select CRC32
425 select CSRC_R4K
426 select DMA_NONCOHERENT
427 select SYS_HAS_EARLY_PRINTK
428 select HAVE_PCI
429 select IRQ_MIPS_CPU
430 select PCI_GT64XXX_PCI0
431 select MIPS_NILE4
432 select R5000_CPU_SCACHE
433 select SYS_HAS_CPU_R5000
434 select SYS_SUPPORTS_32BIT_KERNEL
435 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
436 select SYS_SUPPORTS_LITTLE_ENDIAN
437
438config MACH_LOONGSON32
439 bool "Loongson-1 family of machines"
440 select SYS_SUPPORTS_ZBOOT
441 help
442 This enables support for the Loongson-1 family of machines.
443
444 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
445 the Institute of Computing Technology (ICT), Chinese Academy of
446 Sciences (CAS).
447
448config MACH_LOONGSON64
449 bool "Loongson-2/3 family of machines"
450 select SYS_SUPPORTS_ZBOOT
451 help
452 This enables the support of Loongson-2/3 family of machines.
453
454 Loongson-2 is a family of single-core CPUs and Loongson-3 is a
455 family of multi-core CPUs. They are both 64-bit general-purpose
456 MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute
457 of Computing Technology (ICT), Chinese Academy of Sciences (CAS)
458 in the People's Republic of China. The chief architect is Professor
459 Weiwu Hu.
460
461config MACH_PISTACHIO
462 bool "IMG Pistachio SoC based boards"
463 select BOOT_ELF32
464 select BOOT_RAW
465 select CEVT_R4K
466 select CLKSRC_MIPS_GIC
467 select COMMON_CLK
468 select CSRC_R4K
469 select DMA_NONCOHERENT
470 select GPIOLIB
471 select IRQ_MIPS_CPU
472 select LIBFDT
473 select MFD_SYSCON
474 select MIPS_CPU_SCACHE
475 select MIPS_GIC
476 select PINCTRL
477 select REGULATOR
478 select SYS_HAS_CPU_MIPS32_R2
479 select SYS_SUPPORTS_32BIT_KERNEL
480 select SYS_SUPPORTS_LITTLE_ENDIAN
481 select SYS_SUPPORTS_MIPS_CPS
482 select SYS_SUPPORTS_MULTITHREADING
483 select SYS_SUPPORTS_RELOCATABLE
484 select SYS_SUPPORTS_ZBOOT
485 select SYS_HAS_EARLY_PRINTK
486 select USE_GENERIC_EARLY_PRINTK_8250
487 select USE_OF
488 help
489 This enables support for the IMG Pistachio SoC platform.
490
491config MIPS_MALTA
492 bool "MIPS Malta board"
493 select ARCH_MAY_HAVE_PC_FDC
494 select ARCH_MIGHT_HAVE_PC_PARPORT
495 select ARCH_MIGHT_HAVE_PC_SERIO
496 select BOOT_ELF32
497 select BOOT_RAW
498 select BUILTIN_DTB
499 select CEVT_R4K
500 select CLKSRC_MIPS_GIC
501 select COMMON_CLK
502 select CSRC_R4K
503 select DMA_MAYBE_COHERENT
504 select GENERIC_ISA_DMA
505 select HAVE_PCSPKR_PLATFORM
506 select HAVE_PCI
507 select I8253
508 select I8259
509 select IRQ_MIPS_CPU
510 select LIBFDT
511 select MIPS_BONITO64
512 select MIPS_CPU_SCACHE
513 select MIPS_GIC
514 select MIPS_L1_CACHE_SHIFT_6
515 select MIPS_MSC
516 select PCI_GT64XXX_PCI0
517 select SMP_UP if SMP
518 select SWAP_IO_SPACE
519 select SYS_HAS_CPU_MIPS32_R1
520 select SYS_HAS_CPU_MIPS32_R2
521 select SYS_HAS_CPU_MIPS32_R3_5
522 select SYS_HAS_CPU_MIPS32_R5
523 select SYS_HAS_CPU_MIPS32_R6
524 select SYS_HAS_CPU_MIPS64_R1
525 select SYS_HAS_CPU_MIPS64_R2
526 select SYS_HAS_CPU_MIPS64_R6
527 select SYS_HAS_CPU_NEVADA
528 select SYS_HAS_CPU_RM7000
529 select SYS_SUPPORTS_32BIT_KERNEL
530 select SYS_SUPPORTS_64BIT_KERNEL
531 select SYS_SUPPORTS_BIG_ENDIAN
532 select SYS_SUPPORTS_HIGHMEM
533 select SYS_SUPPORTS_LITTLE_ENDIAN
534 select SYS_SUPPORTS_MICROMIPS
535 select SYS_SUPPORTS_MIPS16
536 select SYS_SUPPORTS_MIPS_CMP
537 select SYS_SUPPORTS_MIPS_CPS
538 select SYS_SUPPORTS_MULTITHREADING
539 select SYS_SUPPORTS_RELOCATABLE
540 select SYS_SUPPORTS_SMARTMIPS
541 select SYS_SUPPORTS_VPE_LOADER
542 select SYS_SUPPORTS_ZBOOT
543 select USE_OF
544 select ZONE_DMA32 if 64BIT
545 help
546 This enables support for the MIPS Technologies Malta evaluation
547 board.
548
549config MACH_PIC32
550 bool "Microchip PIC32 Family"
551 help
552 This enables support for the Microchip PIC32 family of platforms.
553
554 Microchip PIC32 is a family of general-purpose 32 bit MIPS core
555 microcontrollers.
556
557config NEC_MARKEINS
558 bool "NEC EMMA2RH Mark-eins board"
559 select SOC_EMMA2RH
560 select HAVE_PCI
561 help
562 This enables support for the NEC Electronics Mark-eins boards.
563
564config MACH_VR41XX
565 bool "NEC VR4100 series based machines"
566 select CEVT_R4K
567 select CSRC_R4K
568 select SYS_HAS_CPU_VR41XX
569 select SYS_SUPPORTS_MIPS16
570 select GPIOLIB
571
572config NXP_STB220
573 bool "NXP STB220 board"
574 select SOC_PNX833X
575 help
576 Support for NXP Semiconductors STB220 Development Board.
577
578config NXP_STB225
579 bool "NXP 225 board"
580 select SOC_PNX833X
581 select SOC_PNX8335
582 help
583 Support for NXP Semiconductors STB225 Development Board.
584
585config PMC_MSP
586 bool "PMC-Sierra MSP chipsets"
587 select CEVT_R4K
588 select CSRC_R4K
589 select DMA_NONCOHERENT
590 select SWAP_IO_SPACE
591 select NO_EXCEPT_FILL
592 select BOOT_RAW
593 select SYS_HAS_CPU_MIPS32_R1
594 select SYS_HAS_CPU_MIPS32_R2
595 select SYS_SUPPORTS_32BIT_KERNEL
596 select SYS_SUPPORTS_BIG_ENDIAN
597 select SYS_SUPPORTS_MIPS16
598 select IRQ_MIPS_CPU
599 select SERIAL_8250
600 select SERIAL_8250_CONSOLE
601 select USB_EHCI_BIG_ENDIAN_MMIO
602 select USB_EHCI_BIG_ENDIAN_DESC
603 help
604 This adds support for the PMC-Sierra family of Multi-Service
605 Processor System-On-A-Chips. These parts include a number
606 of integrated peripherals, interfaces and DSPs in addition to
607 a variety of MIPS cores.
608
609config RALINK
610 bool "Ralink based machines"
611 select CEVT_R4K
612 select CSRC_R4K
613 select BOOT_RAW
614 select DMA_NONCOHERENT
615 select IRQ_MIPS_CPU
616 select USE_OF
617 select SYS_HAS_CPU_MIPS32_R1
618 select SYS_HAS_CPU_MIPS32_R2
619 select SYS_SUPPORTS_32BIT_KERNEL
620 select SYS_SUPPORTS_LITTLE_ENDIAN
621 select SYS_SUPPORTS_MIPS16
622 select SYS_HAS_EARLY_PRINTK
623 select CLKDEV_LOOKUP
624 select ARCH_HAS_RESET_CONTROLLER
625 select RESET_CONTROLLER
626
627config SGI_IP22
628 bool "SGI IP22 (Indy/Indigo2)"
629 select FW_ARC
630 select FW_ARC32
631 select ARCH_MIGHT_HAVE_PC_SERIO
632 select BOOT_ELF32
633 select CEVT_R4K
634 select CSRC_R4K
635 select DEFAULT_SGI_PARTITION
636 select DMA_NONCOHERENT
637 select HAVE_EISA
638 select I8253
639 select I8259
640 select IP22_CPU_SCACHE
641 select IRQ_MIPS_CPU
642 select GENERIC_ISA_DMA_SUPPORT_BROKEN
643 select SGI_HAS_I8042
644 select SGI_HAS_INDYDOG
645 select SGI_HAS_HAL2
646 select SGI_HAS_SEEQ
647 select SGI_HAS_WD93
648 select SGI_HAS_ZILOG
649 select SWAP_IO_SPACE
650 select SYS_HAS_CPU_R4X00
651 select SYS_HAS_CPU_R5000
652
653
654
655
656
657
658
659
660 select SYS_SUPPORTS_32BIT_KERNEL
661 select SYS_SUPPORTS_64BIT_KERNEL
662 select SYS_SUPPORTS_BIG_ENDIAN
663 select MIPS_L1_CACHE_SHIFT_7
664 help
665 This are the SGI Indy, Challenge S and Indigo2, as well as certain
666 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
667 that runs on these, say Y here.
668
669config SGI_IP27
670 bool "SGI IP27 (Origin200/2000)"
671 select ARCH_HAS_PHYS_TO_DMA
672 select FW_ARC
673 select FW_ARC64
674 select BOOT_ELF64
675 select DEFAULT_SGI_PARTITION
676 select SYS_HAS_EARLY_PRINTK
677 select HAVE_PCI
678 select IRQ_MIPS_CPU
679 select IRQ_DOMAIN_HIERARCHY
680 select NR_CPUS_DEFAULT_64
681 select PCI_DRIVERS_GENERIC
682 select PCI_XTALK_BRIDGE
683 select SYS_HAS_CPU_R10000
684 select SYS_SUPPORTS_64BIT_KERNEL
685 select SYS_SUPPORTS_BIG_ENDIAN
686 select SYS_SUPPORTS_NUMA
687 select SYS_SUPPORTS_SMP
688 select MIPS_L1_CACHE_SHIFT_7
689 help
690 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
691 workstations. To compile a Linux kernel that runs on these, say Y
692 here.
693
694config SGI_IP28
695 bool "SGI IP28 (Indigo2 R10k)"
696 select FW_ARC
697 select FW_ARC64
698 select ARCH_MIGHT_HAVE_PC_SERIO
699 select BOOT_ELF64
700 select CEVT_R4K
701 select CSRC_R4K
702 select DEFAULT_SGI_PARTITION
703 select DMA_NONCOHERENT
704 select GENERIC_ISA_DMA_SUPPORT_BROKEN
705 select IRQ_MIPS_CPU
706 select HAVE_EISA
707 select I8253
708 select I8259
709 select SGI_HAS_I8042
710 select SGI_HAS_INDYDOG
711 select SGI_HAS_HAL2
712 select SGI_HAS_SEEQ
713 select SGI_HAS_WD93
714 select SGI_HAS_ZILOG
715 select SWAP_IO_SPACE
716 select SYS_HAS_CPU_R10000
717
718
719
720
721
722
723
724
725 select SYS_SUPPORTS_64BIT_KERNEL
726 select SYS_SUPPORTS_BIG_ENDIAN
727 select MIPS_L1_CACHE_SHIFT_7
728 help
729 This is the SGI Indigo2 with R10000 processor. To compile a Linux
730 kernel that runs on these, say Y here.
731
732config SGI_IP32
733 bool "SGI IP32 (O2)"
734 select ARCH_HAS_PHYS_TO_DMA
735 select FW_ARC
736 select FW_ARC32
737 select BOOT_ELF32
738 select CEVT_R4K
739 select CSRC_R4K
740 select DMA_NONCOHERENT
741 select HAVE_PCI
742 select IRQ_MIPS_CPU
743 select R5000_CPU_SCACHE
744 select RM7000_CPU_SCACHE
745 select SYS_HAS_CPU_R5000
746 select SYS_HAS_CPU_R10000 if BROKEN
747 select SYS_HAS_CPU_RM7000
748 select SYS_HAS_CPU_NEVADA
749 select SYS_SUPPORTS_64BIT_KERNEL
750 select SYS_SUPPORTS_BIG_ENDIAN
751 help
752 If you want this kernel to run on SGI O2 workstation, say Y here.
753
754config SIBYTE_CRHINE
755 bool "Sibyte BCM91120C-CRhine"
756 select BOOT_ELF32
757 select SIBYTE_BCM1120
758 select SWAP_IO_SPACE
759 select SYS_HAS_CPU_SB1
760 select SYS_SUPPORTS_BIG_ENDIAN
761 select SYS_SUPPORTS_LITTLE_ENDIAN
762
763config SIBYTE_CARMEL
764 bool "Sibyte BCM91120x-Carmel"
765 select BOOT_ELF32
766 select SIBYTE_BCM1120
767 select SWAP_IO_SPACE
768 select SYS_HAS_CPU_SB1
769 select SYS_SUPPORTS_BIG_ENDIAN
770 select SYS_SUPPORTS_LITTLE_ENDIAN
771
772config SIBYTE_CRHONE
773 bool "Sibyte BCM91125C-CRhone"
774 select BOOT_ELF32
775 select SIBYTE_BCM1125
776 select SWAP_IO_SPACE
777 select SYS_HAS_CPU_SB1
778 select SYS_SUPPORTS_BIG_ENDIAN
779 select SYS_SUPPORTS_HIGHMEM
780 select SYS_SUPPORTS_LITTLE_ENDIAN
781
782config SIBYTE_RHONE
783 bool "Sibyte BCM91125E-Rhone"
784 select BOOT_ELF32
785 select SIBYTE_BCM1125H
786 select SWAP_IO_SPACE
787 select SYS_HAS_CPU_SB1
788 select SYS_SUPPORTS_BIG_ENDIAN
789 select SYS_SUPPORTS_LITTLE_ENDIAN
790
791config SIBYTE_SWARM
792 bool "Sibyte BCM91250A-SWARM"
793 select BOOT_ELF32
794 select HAVE_PATA_PLATFORM
795 select SIBYTE_SB1250
796 select SWAP_IO_SPACE
797 select SYS_HAS_CPU_SB1
798 select SYS_SUPPORTS_BIG_ENDIAN
799 select SYS_SUPPORTS_HIGHMEM
800 select SYS_SUPPORTS_LITTLE_ENDIAN
801 select ZONE_DMA32 if 64BIT
802 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
803
804config SIBYTE_LITTLESUR
805 bool "Sibyte BCM91250C2-LittleSur"
806 select BOOT_ELF32
807 select HAVE_PATA_PLATFORM
808 select SIBYTE_SB1250
809 select SWAP_IO_SPACE
810 select SYS_HAS_CPU_SB1
811 select SYS_SUPPORTS_BIG_ENDIAN
812 select SYS_SUPPORTS_HIGHMEM
813 select SYS_SUPPORTS_LITTLE_ENDIAN
814 select ZONE_DMA32 if 64BIT
815
816config SIBYTE_SENTOSA
817 bool "Sibyte BCM91250E-Sentosa"
818 select BOOT_ELF32
819 select SIBYTE_SB1250
820 select SWAP_IO_SPACE
821 select SYS_HAS_CPU_SB1
822 select SYS_SUPPORTS_BIG_ENDIAN
823 select SYS_SUPPORTS_LITTLE_ENDIAN
824 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
825
826config SIBYTE_BIGSUR
827 bool "Sibyte BCM91480B-BigSur"
828 select BOOT_ELF32
829 select NR_CPUS_DEFAULT_4
830 select SIBYTE_BCM1x80
831 select SWAP_IO_SPACE
832 select SYS_HAS_CPU_SB1
833 select SYS_SUPPORTS_BIG_ENDIAN
834 select SYS_SUPPORTS_HIGHMEM
835 select SYS_SUPPORTS_LITTLE_ENDIAN
836 select ZONE_DMA32 if 64BIT
837 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
838
839config SNI_RM
840 bool "SNI RM200/300/400"
841 select FW_ARC if CPU_LITTLE_ENDIAN
842 select FW_ARC32 if CPU_LITTLE_ENDIAN
843 select FW_SNIPROM if CPU_BIG_ENDIAN
844 select ARCH_MAY_HAVE_PC_FDC
845 select ARCH_MIGHT_HAVE_PC_PARPORT
846 select ARCH_MIGHT_HAVE_PC_SERIO
847 select BOOT_ELF32
848 select CEVT_R4K
849 select CSRC_R4K
850 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
851 select DMA_NONCOHERENT
852 select GENERIC_ISA_DMA
853 select HAVE_EISA
854 select HAVE_PCSPKR_PLATFORM
855 select HAVE_PCI
856 select IRQ_MIPS_CPU
857 select I8253
858 select I8259
859 select ISA
860 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
861 select SYS_HAS_CPU_R4X00
862 select SYS_HAS_CPU_R5000
863 select SYS_HAS_CPU_R10000
864 select R5000_CPU_SCACHE
865 select SYS_HAS_EARLY_PRINTK
866 select SYS_SUPPORTS_32BIT_KERNEL
867 select SYS_SUPPORTS_64BIT_KERNEL
868 select SYS_SUPPORTS_BIG_ENDIAN
869 select SYS_SUPPORTS_HIGHMEM
870 select SYS_SUPPORTS_LITTLE_ENDIAN
871 help
872 The SNI RM200/300/400 are MIPS-based machines manufactured by
873 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
874 Technology and now in turn merged with Fujitsu. Say Y here to
875 support this machine type.
876
877config MACH_TX39XX
878 bool "Toshiba TX39 series based machines"
879
880config MACH_TX49XX
881 bool "Toshiba TX49 series based machines"
882
883config MIKROTIK_RB532
884 bool "Mikrotik RB532 boards"
885 select CEVT_R4K
886 select CSRC_R4K
887 select DMA_NONCOHERENT
888 select HAVE_PCI
889 select IRQ_MIPS_CPU
890 select SYS_HAS_CPU_MIPS32_R1
891 select SYS_SUPPORTS_32BIT_KERNEL
892 select SYS_SUPPORTS_LITTLE_ENDIAN
893 select SWAP_IO_SPACE
894 select BOOT_RAW
895 select GPIOLIB
896 select MIPS_L1_CACHE_SHIFT_4
897 help
898 Support the Mikrotik(tm) RouterBoard 532 series,
899 based on the IDT RC32434 SoC.
900
901config CAVIUM_OCTEON_SOC
902 bool "Cavium Networks Octeon SoC based boards"
903 select CEVT_R4K
904 select ARCH_HAS_PHYS_TO_DMA
905 select HAVE_RAPIDIO
906 select PHYS_ADDR_T_64BIT
907 select SYS_SUPPORTS_64BIT_KERNEL
908 select SYS_SUPPORTS_BIG_ENDIAN
909 select EDAC_SUPPORT
910 select EDAC_ATOMIC_SCRUB
911 select SYS_SUPPORTS_LITTLE_ENDIAN
912 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
913 select SYS_HAS_EARLY_PRINTK
914 select SYS_HAS_CPU_CAVIUM_OCTEON
915 select HAVE_PCI
916 select ZONE_DMA32
917 select HOLES_IN_ZONE
918 select GPIOLIB
919 select LIBFDT
920 select USE_OF
921 select ARCH_SPARSEMEM_ENABLE
922 select SYS_SUPPORTS_SMP
923 select NR_CPUS_DEFAULT_64
924 select MIPS_NR_CPU_NR_MAP_1024
925 select BUILTIN_DTB
926 select MTD_COMPLEX_MAPPINGS
927 select SWIOTLB
928 select SYS_SUPPORTS_RELOCATABLE
929 help
930 This option supports all of the Octeon reference boards from Cavium
931 Networks. It builds a kernel that dynamically determines the Octeon
932 CPU type and supports all known board reference implementations.
933 Some of the supported boards are:
934 EBT3000
935 EBH3000
936 EBH3100
937 Thunder
938 Kodama
939 Hikari
940 Say Y here for most Octeon reference boards.
941
942config NLM_XLR_BOARD
943 bool "Netlogic XLR/XLS based systems"
944 select BOOT_ELF32
945 select NLM_COMMON
946 select SYS_HAS_CPU_XLR
947 select SYS_SUPPORTS_SMP
948 select HAVE_PCI
949 select SWAP_IO_SPACE
950 select SYS_SUPPORTS_32BIT_KERNEL
951 select SYS_SUPPORTS_64BIT_KERNEL
952 select PHYS_ADDR_T_64BIT
953 select SYS_SUPPORTS_BIG_ENDIAN
954 select SYS_SUPPORTS_HIGHMEM
955 select NR_CPUS_DEFAULT_32
956 select CEVT_R4K
957 select CSRC_R4K
958 select IRQ_MIPS_CPU
959 select ZONE_DMA32 if 64BIT
960 select SYNC_R4K
961 select SYS_HAS_EARLY_PRINTK
962 select SYS_SUPPORTS_ZBOOT
963 select SYS_SUPPORTS_ZBOOT_UART16550
964 help
965 Support for systems based on Netlogic XLR and XLS processors.
966 Say Y here if you have a XLR or XLS based board.
967
968config NLM_XLP_BOARD
969 bool "Netlogic XLP based systems"
970 select BOOT_ELF32
971 select NLM_COMMON
972 select SYS_HAS_CPU_XLP
973 select SYS_SUPPORTS_SMP
974 select HAVE_PCI
975 select SYS_SUPPORTS_32BIT_KERNEL
976 select SYS_SUPPORTS_64BIT_KERNEL
977 select PHYS_ADDR_T_64BIT
978 select GPIOLIB
979 select SYS_SUPPORTS_BIG_ENDIAN
980 select SYS_SUPPORTS_LITTLE_ENDIAN
981 select SYS_SUPPORTS_HIGHMEM
982 select NR_CPUS_DEFAULT_32
983 select CEVT_R4K
984 select CSRC_R4K
985 select IRQ_MIPS_CPU
986 select ZONE_DMA32 if 64BIT
987 select SYNC_R4K
988 select SYS_HAS_EARLY_PRINTK
989 select USE_OF
990 select SYS_SUPPORTS_ZBOOT
991 select SYS_SUPPORTS_ZBOOT_UART16550
992 help
993 This board is based on Netlogic XLP Processor.
994 Say Y here if you have a XLP based board.
995
996config MIPS_PARAVIRT
997 bool "Para-Virtualized guest system"
998 select CEVT_R4K
999 select CSRC_R4K
1000 select SYS_SUPPORTS_64BIT_KERNEL
1001 select SYS_SUPPORTS_32BIT_KERNEL
1002 select SYS_SUPPORTS_BIG_ENDIAN
1003 select SYS_SUPPORTS_SMP
1004 select NR_CPUS_DEFAULT_4
1005 select SYS_HAS_EARLY_PRINTK
1006 select SYS_HAS_CPU_MIPS32_R2
1007 select SYS_HAS_CPU_MIPS64_R2
1008 select SYS_HAS_CPU_CAVIUM_OCTEON
1009 select HAVE_PCI
1010 select SWAP_IO_SPACE
1011 help
1012 This option supports guest running under ????
1013
1014endchoice
1015
1016source "arch/mips/alchemy/Kconfig"
1017source "arch/mips/ath25/Kconfig"
1018source "arch/mips/ath79/Kconfig"
1019source "arch/mips/bcm47xx/Kconfig"
1020source "arch/mips/bcm63xx/Kconfig"
1021source "arch/mips/bmips/Kconfig"
1022source "arch/mips/generic/Kconfig"
1023source "arch/mips/jazz/Kconfig"
1024source "arch/mips/jz4740/Kconfig"
1025source "arch/mips/lantiq/Kconfig"
1026source "arch/mips/lasat/Kconfig"
1027source "arch/mips/pic32/Kconfig"
1028source "arch/mips/pistachio/Kconfig"
1029source "arch/mips/pmcs-msp71xx/Kconfig"
1030source "arch/mips/ralink/Kconfig"
1031source "arch/mips/sgi-ip27/Kconfig"
1032source "arch/mips/sibyte/Kconfig"
1033source "arch/mips/txx9/Kconfig"
1034source "arch/mips/vr41xx/Kconfig"
1035source "arch/mips/cavium-octeon/Kconfig"
1036source "arch/mips/loongson32/Kconfig"
1037source "arch/mips/loongson64/Kconfig"
1038source "arch/mips/netlogic/Kconfig"
1039source "arch/mips/paravirt/Kconfig"
1040
1041endmenu
1042
1043config GENERIC_HWEIGHT
1044 bool
1045 default y
1046
1047config GENERIC_CALIBRATE_DELAY
1048 bool
1049 default y
1050
1051config SCHED_OMIT_FRAME_POINTER
1052 bool
1053 default y
1054
1055
1056
1057
1058config FW_ARC
1059 bool
1060
1061config ARCH_MAY_HAVE_PC_FDC
1062 bool
1063
1064config BOOT_RAW
1065 bool
1066
1067config CEVT_BCM1480
1068 bool
1069
1070config CEVT_DS1287
1071 bool
1072
1073config CEVT_GT641XX
1074 bool
1075
1076config CEVT_R4K
1077 bool
1078
1079config CEVT_SB1250
1080 bool
1081
1082config CEVT_TXX9
1083 bool
1084
1085config CSRC_BCM1480
1086 bool
1087
1088config CSRC_IOASIC
1089 bool
1090
1091config CSRC_R4K
1092 bool
1093
1094config CSRC_SB1250
1095 bool
1096
1097config MIPS_CLOCK_VSYSCALL
1098 def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1099
1100config GPIO_TXX9
1101 select GPIOLIB
1102 bool
1103
1104config FW_CFE
1105 bool
1106
1107config ARCH_SUPPORTS_UPROBES
1108 bool
1109
1110config DMA_MAYBE_COHERENT
1111 select ARCH_HAS_DMA_COHERENCE_H
1112 select DMA_NONCOHERENT
1113 bool
1114
1115config DMA_PERDEV_COHERENT
1116 bool
1117 select ARCH_HAS_SETUP_DMA_OPS
1118 select DMA_NONCOHERENT
1119
1120config DMA_NONCOHERENT
1121 bool
1122 select ARCH_HAS_DMA_MMAP_PGPROT
1123 select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1124 select ARCH_HAS_UNCACHED_SEGMENT
1125 select NEED_DMA_MAP_STATE
1126 select ARCH_HAS_DMA_COHERENT_TO_PFN
1127 select DMA_NONCOHERENT_CACHE_SYNC
1128
1129config SYS_HAS_EARLY_PRINTK
1130 bool
1131
1132config SYS_SUPPORTS_HOTPLUG_CPU
1133 bool
1134
1135config MIPS_BONITO64
1136 bool
1137
1138config MIPS_MSC
1139 bool
1140
1141config MIPS_NILE4
1142 bool
1143
1144config SYNC_R4K
1145 bool
1146
1147config MIPS_MACHINE
1148 def_bool n
1149
1150config NO_IOPORT_MAP
1151 def_bool n
1152
1153config GENERIC_CSUM
1154 bool
1155 default y if !CPU_HAS_LOAD_STORE_LR
1156
1157config GENERIC_ISA_DMA
1158 bool
1159 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1160 select ISA_DMA_API
1161
1162config GENERIC_ISA_DMA_SUPPORT_BROKEN
1163 bool
1164 select GENERIC_ISA_DMA
1165
1166config ISA_DMA_API
1167 bool
1168
1169config HOLES_IN_ZONE
1170 bool
1171
1172config SYS_SUPPORTS_RELOCATABLE
1173 bool
1174 help
1175 Selected if the platform supports relocating the kernel.
1176 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1177 to allow access to command line and entropy sources.
1178
1179config MIPS_CBPF_JIT
1180 def_bool y
1181 depends on BPF_JIT && HAVE_CBPF_JIT
1182
1183config MIPS_EBPF_JIT
1184 def_bool y
1185 depends on BPF_JIT && HAVE_EBPF_JIT
1186
1187
1188
1189
1190
1191
1192
1193choice
1194 prompt "Endianness selection"
1195 help
1196 Some MIPS machines can be configured for either little or big endian
1197 byte order. These modes require different kernels and a different
1198 Linux distribution. In general there is one preferred byteorder for a
1199 particular system but some systems are just as commonly used in the
1200 one or the other endianness.
1201
1202config CPU_BIG_ENDIAN
1203 bool "Big endian"
1204 depends on SYS_SUPPORTS_BIG_ENDIAN
1205
1206config CPU_LITTLE_ENDIAN
1207 bool "Little endian"
1208 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1209
1210endchoice
1211
1212config EXPORT_UASM
1213 bool
1214
1215config SYS_SUPPORTS_APM_EMULATION
1216 bool
1217
1218config SYS_SUPPORTS_BIG_ENDIAN
1219 bool
1220
1221config SYS_SUPPORTS_LITTLE_ENDIAN
1222 bool
1223
1224config SYS_SUPPORTS_HUGETLBFS
1225 bool
1226 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1227 default y
1228
1229config MIPS_HUGE_TLB_SUPPORT
1230 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1231
1232config IRQ_CPU_RM7K
1233 bool
1234
1235config IRQ_MSP_SLP
1236 bool
1237
1238config IRQ_MSP_CIC
1239 bool
1240
1241config IRQ_TXX9
1242 bool
1243
1244config IRQ_GT641XX
1245 bool
1246
1247config PCI_GT64XXX_PCI0
1248 bool
1249
1250config PCI_XTALK_BRIDGE
1251 bool
1252
1253config NO_EXCEPT_FILL
1254 bool
1255
1256config SOC_EMMA2RH
1257 bool
1258 select CEVT_R4K
1259 select CSRC_R4K
1260 select DMA_NONCOHERENT
1261 select IRQ_MIPS_CPU
1262 select SWAP_IO_SPACE
1263 select SYS_HAS_CPU_R5500
1264 select SYS_SUPPORTS_32BIT_KERNEL
1265 select SYS_SUPPORTS_64BIT_KERNEL
1266 select SYS_SUPPORTS_BIG_ENDIAN
1267
1268config SOC_PNX833X
1269 bool
1270 select CEVT_R4K
1271 select CSRC_R4K
1272 select IRQ_MIPS_CPU
1273 select DMA_NONCOHERENT
1274 select SYS_HAS_CPU_MIPS32_R2
1275 select SYS_SUPPORTS_32BIT_KERNEL
1276 select SYS_SUPPORTS_LITTLE_ENDIAN
1277 select SYS_SUPPORTS_BIG_ENDIAN
1278 select SYS_SUPPORTS_MIPS16
1279 select CPU_MIPSR2_IRQ_VI
1280
1281config SOC_PNX8335
1282 bool
1283 select SOC_PNX833X
1284
1285config MIPS_SPRAM
1286 bool
1287
1288config SWAP_IO_SPACE
1289 bool
1290
1291config SGI_HAS_INDYDOG
1292 bool
1293
1294config SGI_HAS_HAL2
1295 bool
1296
1297config SGI_HAS_SEEQ
1298 bool
1299
1300config SGI_HAS_WD93
1301 bool
1302
1303config SGI_HAS_ZILOG
1304 bool
1305
1306config SGI_HAS_I8042
1307 bool
1308
1309config DEFAULT_SGI_PARTITION
1310 bool
1311
1312config FW_ARC32
1313 bool
1314
1315config FW_SNIPROM
1316 bool
1317
1318config BOOT_ELF32
1319 bool
1320
1321config MIPS_L1_CACHE_SHIFT_4
1322 bool
1323
1324config MIPS_L1_CACHE_SHIFT_5
1325 bool
1326
1327config MIPS_L1_CACHE_SHIFT_6
1328 bool
1329
1330config MIPS_L1_CACHE_SHIFT_7
1331 bool
1332
1333config MIPS_L1_CACHE_SHIFT
1334 int
1335 default "7" if MIPS_L1_CACHE_SHIFT_7
1336 default "6" if MIPS_L1_CACHE_SHIFT_6
1337 default "5" if MIPS_L1_CACHE_SHIFT_5
1338 default "4" if MIPS_L1_CACHE_SHIFT_4
1339 default "5"
1340
1341config HAVE_STD_PC_SERIAL_PORT
1342 bool
1343
1344config ARC_CONSOLE
1345 bool "ARC console support"
1346 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1347
1348config ARC_MEMORY
1349 bool
1350 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1351 default y
1352
1353config ARC_PROMLIB
1354 bool
1355 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1356 default y
1357
1358config FW_ARC64
1359 bool
1360
1361config BOOT_ELF64
1362 bool
1363
1364menu "CPU selection"
1365
1366choice
1367 prompt "CPU type"
1368 default CPU_R4X00
1369
1370config CPU_LOONGSON3
1371 bool "Loongson 3 CPU"
1372 depends on SYS_HAS_CPU_LOONGSON3
1373 select ARCH_HAS_PHYS_TO_DMA
1374 select CPU_SUPPORTS_64BIT_KERNEL
1375 select CPU_SUPPORTS_HIGHMEM
1376 select CPU_SUPPORTS_HUGEPAGES
1377 select CPU_HAS_LOAD_STORE_LR
1378 select WEAK_ORDERING
1379 select WEAK_REORDERING_BEYOND_LLSC
1380 select MIPS_PGD_C0_CONTEXT
1381 select MIPS_L1_CACHE_SHIFT_6
1382 select GPIOLIB
1383 select SWIOTLB
1384 help
1385 The Loongson 3 processor implements the MIPS64R2 instruction
1386 set with many extensions.
1387
1388config LOONGSON3_ENHANCEMENT
1389 bool "New Loongson 3 CPU Enhancements"
1390 default n
1391 select CPU_MIPSR2
1392 select CPU_HAS_PREFETCH
1393 depends on CPU_LOONGSON3
1394 help
1395 New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A
1396 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1397 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User
1398 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1399 Fast TLB refill support, etc.
1400
1401 This option enable those enhancements which are not probed at run
1402 time. If you want a generic kernel to run on all Loongson 3 machines,
1403 please say 'N' here. If you want a high-performance kernel to run on
1404 new Loongson 3 machines only, please say 'Y' here.
1405
1406config CPU_LOONGSON3_WORKAROUNDS
1407 bool "Old Loongson 3 LLSC Workarounds"
1408 default y if SMP
1409 depends on CPU_LOONGSON3
1410 help
1411 Loongson 3 processors have the llsc issues which require workarounds.
1412 Without workarounds the system may hang unexpectedly.
1413
1414 Newer Loongson 3 will fix these issues and no workarounds are needed.
1415 The workarounds have no significant side effect on them but may
1416 decrease the performance of the system so this option should be
1417 disabled unless the kernel is intended to be run on old systems.
1418
1419 If unsure, please say Y.
1420
1421config CPU_LOONGSON2E
1422 bool "Loongson 2E"
1423 depends on SYS_HAS_CPU_LOONGSON2E
1424 select CPU_LOONGSON2
1425 help
1426 The Loongson 2E processor implements the MIPS III instruction set
1427 with many extensions.
1428
1429 It has an internal FPGA northbridge, which is compatible to
1430 bonito64.
1431
1432config CPU_LOONGSON2F
1433 bool "Loongson 2F"
1434 depends on SYS_HAS_CPU_LOONGSON2F
1435 select CPU_LOONGSON2
1436 select GPIOLIB
1437 help
1438 The Loongson 2F processor implements the MIPS III instruction set
1439 with many extensions.
1440
1441 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1442 have a similar programming interface with FPGA northbridge used in
1443 Loongson2E.
1444
1445config CPU_LOONGSON1B
1446 bool "Loongson 1B"
1447 depends on SYS_HAS_CPU_LOONGSON1B
1448 select CPU_LOONGSON1
1449 select LEDS_GPIO_REGISTER
1450 help
1451 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1452 Release 1 instruction set and part of the MIPS32 Release 2
1453 instruction set.
1454
1455config CPU_LOONGSON1C
1456 bool "Loongson 1C"
1457 depends on SYS_HAS_CPU_LOONGSON1C
1458 select CPU_LOONGSON1
1459 select LEDS_GPIO_REGISTER
1460 help
1461 The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1462 Release 1 instruction set and part of the MIPS32 Release 2
1463 instruction set.
1464
1465config CPU_MIPS32_R1
1466 bool "MIPS32 Release 1"
1467 depends on SYS_HAS_CPU_MIPS32_R1
1468 select CPU_HAS_PREFETCH
1469 select CPU_HAS_LOAD_STORE_LR
1470 select CPU_SUPPORTS_32BIT_KERNEL
1471 select CPU_SUPPORTS_HIGHMEM
1472 help
1473 Choose this option to build a kernel for release 1 or later of the
1474 MIPS32 architecture. Most modern embedded systems with a 32-bit
1475 MIPS processor are based on a MIPS32 processor. If you know the
1476 specific type of processor in your system, choose those that one
1477 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1478 Release 2 of the MIPS32 architecture is available since several
1479 years so chances are you even have a MIPS32 Release 2 processor
1480 in which case you should choose CPU_MIPS32_R2 instead for better
1481 performance.
1482
1483config CPU_MIPS32_R2
1484 bool "MIPS32 Release 2"
1485 depends on SYS_HAS_CPU_MIPS32_R2
1486 select CPU_HAS_PREFETCH
1487 select CPU_HAS_LOAD_STORE_LR
1488 select CPU_SUPPORTS_32BIT_KERNEL
1489 select CPU_SUPPORTS_HIGHMEM
1490 select CPU_SUPPORTS_MSA
1491 select HAVE_KVM
1492 help
1493 Choose this option to build a kernel for release 2 or later of the
1494 MIPS32 architecture. Most modern embedded systems with a 32-bit
1495 MIPS processor are based on a MIPS32 processor. If you know the
1496 specific type of processor in your system, choose those that one
1497 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1498
1499config CPU_MIPS32_R6
1500 bool "MIPS32 Release 6"
1501 depends on SYS_HAS_CPU_MIPS32_R6
1502 select CPU_HAS_PREFETCH
1503 select CPU_SUPPORTS_32BIT_KERNEL
1504 select CPU_SUPPORTS_HIGHMEM
1505 select CPU_SUPPORTS_MSA
1506 select HAVE_KVM
1507 select MIPS_O32_FP64_SUPPORT
1508 help
1509 Choose this option to build a kernel for release 6 or later of the
1510 MIPS32 architecture. New MIPS processors, starting with the Warrior
1511 family, are based on a MIPS32r6 processor. If you own an older
1512 processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1513
1514config CPU_MIPS64_R1
1515 bool "MIPS64 Release 1"
1516 depends on SYS_HAS_CPU_MIPS64_R1
1517 select CPU_HAS_PREFETCH
1518 select CPU_HAS_LOAD_STORE_LR
1519 select CPU_SUPPORTS_32BIT_KERNEL
1520 select CPU_SUPPORTS_64BIT_KERNEL
1521 select CPU_SUPPORTS_HIGHMEM
1522 select CPU_SUPPORTS_HUGEPAGES
1523 help
1524 Choose this option to build a kernel for release 1 or later of the
1525 MIPS64 architecture. Many modern embedded systems with a 64-bit
1526 MIPS processor are based on a MIPS64 processor. If you know the
1527 specific type of processor in your system, choose those that one
1528 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1529 Release 2 of the MIPS64 architecture is available since several
1530 years so chances are you even have a MIPS64 Release 2 processor
1531 in which case you should choose CPU_MIPS64_R2 instead for better
1532 performance.
1533
1534config CPU_MIPS64_R2
1535 bool "MIPS64 Release 2"
1536 depends on SYS_HAS_CPU_MIPS64_R2
1537 select CPU_HAS_PREFETCH
1538 select CPU_HAS_LOAD_STORE_LR
1539 select CPU_SUPPORTS_32BIT_KERNEL
1540 select CPU_SUPPORTS_64BIT_KERNEL
1541 select CPU_SUPPORTS_HIGHMEM
1542 select CPU_SUPPORTS_HUGEPAGES
1543 select CPU_SUPPORTS_MSA
1544 select HAVE_KVM
1545 help
1546 Choose this option to build a kernel for release 2 or later of the
1547 MIPS64 architecture. Many modern embedded systems with a 64-bit
1548 MIPS processor are based on a MIPS64 processor. If you know the
1549 specific type of processor in your system, choose those that one
1550 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1551
1552config CPU_MIPS64_R6
1553 bool "MIPS64 Release 6"
1554 depends on SYS_HAS_CPU_MIPS64_R6
1555 select CPU_HAS_PREFETCH
1556 select CPU_SUPPORTS_32BIT_KERNEL
1557 select CPU_SUPPORTS_64BIT_KERNEL
1558 select CPU_SUPPORTS_HIGHMEM
1559 select CPU_SUPPORTS_HUGEPAGES
1560 select CPU_SUPPORTS_MSA
1561 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1562 select HAVE_KVM
1563 help
1564 Choose this option to build a kernel for release 6 or later of the
1565 MIPS64 architecture. New MIPS processors, starting with the Warrior
1566 family, are based on a MIPS64r6 processor. If you own an older
1567 processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1568
1569config CPU_R3000
1570 bool "R3000"
1571 depends on SYS_HAS_CPU_R3000
1572 select CPU_HAS_WB
1573 select CPU_HAS_LOAD_STORE_LR
1574 select CPU_SUPPORTS_32BIT_KERNEL
1575 select CPU_SUPPORTS_HIGHMEM
1576 help
1577 Please make sure to pick the right CPU type. Linux/MIPS is not
1578 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1579 *not* work on R4000 machines and vice versa. However, since most
1580 of the supported machines have an R4000 (or similar) CPU, R4x00
1581 might be a safe bet. If the resulting kernel does not work,
1582 try to recompile with R3000.
1583
1584config CPU_TX39XX
1585 bool "R39XX"
1586 depends on SYS_HAS_CPU_TX39XX
1587 select CPU_SUPPORTS_32BIT_KERNEL
1588 select CPU_HAS_LOAD_STORE_LR
1589
1590config CPU_VR41XX
1591 bool "R41xx"
1592 depends on SYS_HAS_CPU_VR41XX
1593 select CPU_SUPPORTS_32BIT_KERNEL
1594 select CPU_SUPPORTS_64BIT_KERNEL
1595 select CPU_HAS_LOAD_STORE_LR
1596 help
1597 The options selects support for the NEC VR4100 series of processors.
1598 Only choose this option if you have one of these processors as a
1599 kernel built with this option will not run on any other type of
1600 processor or vice versa.
1601
1602config CPU_R4300
1603 bool "R4300"
1604 depends on SYS_HAS_CPU_R4300
1605 select CPU_SUPPORTS_32BIT_KERNEL
1606 select CPU_SUPPORTS_64BIT_KERNEL
1607 select CPU_HAS_LOAD_STORE_LR
1608 help
1609 MIPS Technologies R4300-series processors.
1610
1611config CPU_R4X00
1612 bool "R4x00"
1613 depends on SYS_HAS_CPU_R4X00
1614 select CPU_SUPPORTS_32BIT_KERNEL
1615 select CPU_SUPPORTS_64BIT_KERNEL
1616 select CPU_SUPPORTS_HUGEPAGES
1617 select CPU_HAS_LOAD_STORE_LR
1618 help
1619 MIPS Technologies R4000-series processors other than 4300, including
1620 the R4000, R4400, R4600, and 4700.
1621
1622config CPU_TX49XX
1623 bool "R49XX"
1624 depends on SYS_HAS_CPU_TX49XX
1625 select CPU_HAS_PREFETCH
1626 select CPU_HAS_LOAD_STORE_LR
1627 select CPU_SUPPORTS_32BIT_KERNEL
1628 select CPU_SUPPORTS_64BIT_KERNEL
1629 select CPU_SUPPORTS_HUGEPAGES
1630
1631config CPU_R5000
1632 bool "R5000"
1633 depends on SYS_HAS_CPU_R5000
1634 select CPU_SUPPORTS_32BIT_KERNEL
1635 select CPU_SUPPORTS_64BIT_KERNEL
1636 select CPU_SUPPORTS_HUGEPAGES
1637 select CPU_HAS_LOAD_STORE_LR
1638 help
1639 MIPS Technologies R5000-series processors other than the Nevada.
1640
1641config CPU_R5432
1642 bool "R5432"
1643 depends on SYS_HAS_CPU_R5432
1644 select CPU_SUPPORTS_32BIT_KERNEL
1645 select CPU_SUPPORTS_64BIT_KERNEL
1646 select CPU_SUPPORTS_HUGEPAGES
1647 select CPU_HAS_LOAD_STORE_LR
1648
1649config CPU_R5500
1650 bool "R5500"
1651 depends on SYS_HAS_CPU_R5500
1652 select CPU_SUPPORTS_32BIT_KERNEL
1653 select CPU_SUPPORTS_64BIT_KERNEL
1654 select CPU_SUPPORTS_HUGEPAGES
1655 select CPU_HAS_LOAD_STORE_LR
1656 help
1657 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1658 instruction set.
1659
1660config CPU_NEVADA
1661 bool "RM52xx"
1662 depends on SYS_HAS_CPU_NEVADA
1663 select CPU_SUPPORTS_32BIT_KERNEL
1664 select CPU_SUPPORTS_64BIT_KERNEL
1665 select CPU_SUPPORTS_HUGEPAGES
1666 select CPU_HAS_LOAD_STORE_LR
1667 help
1668 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1669
1670config CPU_R8000
1671 bool "R8000"
1672 depends on SYS_HAS_CPU_R8000
1673 select CPU_HAS_PREFETCH
1674 select CPU_HAS_LOAD_STORE_LR
1675 select CPU_SUPPORTS_64BIT_KERNEL
1676 help
1677 MIPS Technologies R8000 processors. Note these processors are
1678 uncommon and the support for them is incomplete.
1679
1680config CPU_R10000
1681 bool "R10000"
1682 depends on SYS_HAS_CPU_R10000
1683 select CPU_HAS_PREFETCH
1684 select CPU_HAS_LOAD_STORE_LR
1685 select CPU_SUPPORTS_32BIT_KERNEL
1686 select CPU_SUPPORTS_64BIT_KERNEL
1687 select CPU_SUPPORTS_HIGHMEM
1688 select CPU_SUPPORTS_HUGEPAGES
1689 help
1690 MIPS Technologies R10000-series processors.
1691
1692config CPU_RM7000
1693 bool "RM7000"
1694 depends on SYS_HAS_CPU_RM7000
1695 select CPU_HAS_PREFETCH
1696 select CPU_HAS_LOAD_STORE_LR
1697 select CPU_SUPPORTS_32BIT_KERNEL
1698 select CPU_SUPPORTS_64BIT_KERNEL
1699 select CPU_SUPPORTS_HIGHMEM
1700 select CPU_SUPPORTS_HUGEPAGES
1701
1702config CPU_SB1
1703 bool "SB1"
1704 depends on SYS_HAS_CPU_SB1
1705 select CPU_HAS_LOAD_STORE_LR
1706 select CPU_SUPPORTS_32BIT_KERNEL
1707 select CPU_SUPPORTS_64BIT_KERNEL
1708 select CPU_SUPPORTS_HIGHMEM
1709 select CPU_SUPPORTS_HUGEPAGES
1710 select WEAK_ORDERING
1711
1712config CPU_CAVIUM_OCTEON
1713 bool "Cavium Octeon processor"
1714 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1715 select CPU_HAS_PREFETCH
1716 select CPU_HAS_LOAD_STORE_LR
1717 select CPU_SUPPORTS_64BIT_KERNEL
1718 select WEAK_ORDERING
1719 select CPU_SUPPORTS_HIGHMEM
1720 select CPU_SUPPORTS_HUGEPAGES
1721 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1722 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1723 select MIPS_L1_CACHE_SHIFT_7
1724 select HAVE_KVM
1725 help
1726 The Cavium Octeon processor is a highly integrated chip containing
1727 many ethernet hardware widgets for networking tasks. The processor
1728 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1729 Full details can be found at http://www.caviumnetworks.com.
1730
1731config CPU_BMIPS
1732 bool "Broadcom BMIPS"
1733 depends on SYS_HAS_CPU_BMIPS
1734 select CPU_MIPS32
1735 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1736 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1737 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1738 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1739 select CPU_SUPPORTS_32BIT_KERNEL
1740 select DMA_NONCOHERENT
1741 select IRQ_MIPS_CPU
1742 select SWAP_IO_SPACE
1743 select WEAK_ORDERING
1744 select CPU_SUPPORTS_HIGHMEM
1745 select CPU_HAS_PREFETCH
1746 select CPU_HAS_LOAD_STORE_LR
1747 select CPU_SUPPORTS_CPUFREQ
1748 select MIPS_EXTERNAL_TIMER
1749 help
1750 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1751
1752config CPU_XLR
1753 bool "Netlogic XLR SoC"
1754 depends on SYS_HAS_CPU_XLR
1755 select CPU_HAS_LOAD_STORE_LR
1756 select CPU_SUPPORTS_32BIT_KERNEL
1757 select CPU_SUPPORTS_64BIT_KERNEL
1758 select CPU_SUPPORTS_HIGHMEM
1759 select CPU_SUPPORTS_HUGEPAGES
1760 select WEAK_ORDERING
1761 select WEAK_REORDERING_BEYOND_LLSC
1762 help
1763 Netlogic Microsystems XLR/XLS processors.
1764
1765config CPU_XLP
1766 bool "Netlogic XLP SoC"
1767 depends on SYS_HAS_CPU_XLP
1768 select CPU_SUPPORTS_32BIT_KERNEL
1769 select CPU_SUPPORTS_64BIT_KERNEL
1770 select CPU_SUPPORTS_HIGHMEM
1771 select WEAK_ORDERING
1772 select WEAK_REORDERING_BEYOND_LLSC
1773 select CPU_HAS_PREFETCH
1774 select CPU_HAS_LOAD_STORE_LR
1775 select CPU_MIPSR2
1776 select CPU_SUPPORTS_HUGEPAGES
1777 select MIPS_ASID_BITS_VARIABLE
1778 help
1779 Netlogic Microsystems XLP processors.
1780endchoice
1781
1782config CPU_MIPS32_3_5_FEATURES
1783 bool "MIPS32 Release 3.5 Features"
1784 depends on SYS_HAS_CPU_MIPS32_R3_5
1785 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1786 help
1787 Choose this option to build a kernel for release 2 or later of the
1788 MIPS32 architecture including features from the 3.5 release such as
1789 support for Enhanced Virtual Addressing (EVA).
1790
1791config CPU_MIPS32_3_5_EVA
1792 bool "Enhanced Virtual Addressing (EVA)"
1793 depends on CPU_MIPS32_3_5_FEATURES
1794 select EVA
1795 default y
1796 help
1797 Choose this option if you want to enable the Enhanced Virtual
1798 Addressing (EVA) on your MIPS32 core (such as proAptiv).
1799 One of its primary benefits is an increase in the maximum size
1800 of lowmem (up to 3GB). If unsure, say 'N' here.
1801
1802config CPU_MIPS32_R5_FEATURES
1803 bool "MIPS32 Release 5 Features"
1804 depends on SYS_HAS_CPU_MIPS32_R5
1805 depends on CPU_MIPS32_R2
1806 help
1807 Choose this option to build a kernel for release 2 or later of the
1808 MIPS32 architecture including features from release 5 such as
1809 support for Extended Physical Addressing (XPA).
1810
1811config CPU_MIPS32_R5_XPA
1812 bool "Extended Physical Addressing (XPA)"
1813 depends on CPU_MIPS32_R5_FEATURES
1814 depends on !EVA
1815 depends on !PAGE_SIZE_4KB
1816 depends on SYS_SUPPORTS_HIGHMEM
1817 select XPA
1818 select HIGHMEM
1819 select PHYS_ADDR_T_64BIT
1820 default n
1821 help
1822 Choose this option if you want to enable the Extended Physical
1823 Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1824 benefit is to increase physical addressing equal to or greater
1825 than 40 bits. Note that this has the side effect of turning on
1826 64-bit addressing which in turn makes the PTEs 64-bit in size.
1827 If unsure, say 'N' here.
1828
1829if CPU_LOONGSON2F
1830config CPU_NOP_WORKAROUNDS
1831 bool
1832
1833config CPU_JUMP_WORKAROUNDS
1834 bool
1835
1836config CPU_LOONGSON2F_WORKAROUNDS
1837 bool "Loongson 2F Workarounds"
1838 default y
1839 select CPU_NOP_WORKAROUNDS
1840 select CPU_JUMP_WORKAROUNDS
1841 help
1842 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1843 require workarounds. Without workarounds the system may hang
1844 unexpectedly. For more information please refer to the gas
1845 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1846
1847 Loongson 2F03 and later have fixed these issues and no workarounds
1848 are needed. The workarounds have no significant side effect on them
1849 but may decrease the performance of the system so this option should
1850 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1851 systems.
1852
1853 If unsure, please say Y.
1854endif
1855
1856config SYS_SUPPORTS_ZBOOT
1857 bool
1858 select HAVE_KERNEL_GZIP
1859 select HAVE_KERNEL_BZIP2
1860 select HAVE_KERNEL_LZ4
1861 select HAVE_KERNEL_LZMA
1862 select HAVE_KERNEL_LZO
1863 select HAVE_KERNEL_XZ
1864
1865config SYS_SUPPORTS_ZBOOT_UART16550
1866 bool
1867 select SYS_SUPPORTS_ZBOOT
1868
1869config SYS_SUPPORTS_ZBOOT_UART_PROM
1870 bool
1871 select SYS_SUPPORTS_ZBOOT
1872
1873config CPU_LOONGSON2
1874 bool
1875 select CPU_SUPPORTS_32BIT_KERNEL
1876 select CPU_SUPPORTS_64BIT_KERNEL
1877 select CPU_SUPPORTS_HIGHMEM
1878 select CPU_SUPPORTS_HUGEPAGES
1879 select ARCH_HAS_PHYS_TO_DMA
1880 select CPU_HAS_LOAD_STORE_LR
1881
1882config CPU_LOONGSON1
1883 bool
1884 select CPU_MIPS32
1885 select CPU_MIPSR2
1886 select CPU_HAS_PREFETCH
1887 select CPU_HAS_LOAD_STORE_LR
1888 select CPU_SUPPORTS_32BIT_KERNEL
1889 select CPU_SUPPORTS_HIGHMEM
1890 select CPU_SUPPORTS_CPUFREQ
1891
1892config CPU_BMIPS32_3300
1893 select SMP_UP if SMP
1894 bool
1895
1896config CPU_BMIPS4350
1897 bool
1898 select SYS_SUPPORTS_SMP
1899 select SYS_SUPPORTS_HOTPLUG_CPU
1900
1901config CPU_BMIPS4380
1902 bool
1903 select MIPS_L1_CACHE_SHIFT_6
1904 select SYS_SUPPORTS_SMP
1905 select SYS_SUPPORTS_HOTPLUG_CPU
1906 select CPU_HAS_RIXI
1907
1908config CPU_BMIPS5000
1909 bool
1910 select MIPS_CPU_SCACHE
1911 select MIPS_L1_CACHE_SHIFT_7
1912 select SYS_SUPPORTS_SMP
1913 select SYS_SUPPORTS_HOTPLUG_CPU
1914 select CPU_HAS_RIXI
1915
1916config SYS_HAS_CPU_LOONGSON3
1917 bool
1918 select CPU_SUPPORTS_CPUFREQ
1919 select CPU_HAS_RIXI
1920
1921config SYS_HAS_CPU_LOONGSON2E
1922 bool
1923
1924config SYS_HAS_CPU_LOONGSON2F
1925 bool
1926 select CPU_SUPPORTS_CPUFREQ
1927 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1928 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1929
1930config SYS_HAS_CPU_LOONGSON1B
1931 bool
1932
1933config SYS_HAS_CPU_LOONGSON1C
1934 bool
1935
1936config SYS_HAS_CPU_MIPS32_R1
1937 bool
1938
1939config SYS_HAS_CPU_MIPS32_R2
1940 bool
1941
1942config SYS_HAS_CPU_MIPS32_R3_5
1943 bool
1944
1945config SYS_HAS_CPU_MIPS32_R5
1946 bool
1947 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1948
1949config SYS_HAS_CPU_MIPS32_R6
1950 bool
1951 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1952
1953config SYS_HAS_CPU_MIPS64_R1
1954 bool
1955
1956config SYS_HAS_CPU_MIPS64_R2
1957 bool
1958
1959config SYS_HAS_CPU_MIPS64_R6
1960 bool
1961 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1962
1963config SYS_HAS_CPU_R3000
1964 bool
1965
1966config SYS_HAS_CPU_TX39XX
1967 bool
1968
1969config SYS_HAS_CPU_VR41XX
1970 bool
1971
1972config SYS_HAS_CPU_R4300
1973 bool
1974
1975config SYS_HAS_CPU_R4X00
1976 bool
1977
1978config SYS_HAS_CPU_TX49XX
1979 bool
1980
1981config SYS_HAS_CPU_R5000
1982 bool
1983
1984config SYS_HAS_CPU_R5432
1985 bool
1986
1987config SYS_HAS_CPU_R5500
1988 bool
1989
1990config SYS_HAS_CPU_NEVADA
1991 bool
1992
1993config SYS_HAS_CPU_R8000
1994 bool
1995
1996config SYS_HAS_CPU_R10000
1997 bool
1998 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1999
2000config SYS_HAS_CPU_RM7000
2001 bool
2002
2003config SYS_HAS_CPU_SB1
2004 bool
2005
2006config SYS_HAS_CPU_CAVIUM_OCTEON
2007 bool
2008
2009config SYS_HAS_CPU_BMIPS
2010 bool
2011
2012config SYS_HAS_CPU_BMIPS32_3300
2013 bool
2014 select SYS_HAS_CPU_BMIPS
2015
2016config SYS_HAS_CPU_BMIPS4350
2017 bool
2018 select SYS_HAS_CPU_BMIPS
2019
2020config SYS_HAS_CPU_BMIPS4380
2021 bool
2022 select SYS_HAS_CPU_BMIPS
2023
2024config SYS_HAS_CPU_BMIPS5000
2025 bool
2026 select SYS_HAS_CPU_BMIPS
2027 select ARCH_HAS_SYNC_DMA_FOR_CPU
2028
2029config SYS_HAS_CPU_XLR
2030 bool
2031
2032config SYS_HAS_CPU_XLP
2033 bool
2034
2035
2036
2037
2038
2039config WEAK_ORDERING
2040 bool
2041
2042
2043
2044
2045
2046config WEAK_REORDERING_BEYOND_LLSC
2047 bool
2048endmenu
2049
2050
2051
2052
2053config CPU_MIPS32
2054 bool
2055 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
2056
2057config CPU_MIPS64
2058 bool
2059 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
2060
2061
2062
2063
2064config CPU_MIPSR1
2065 bool
2066 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
2067
2068config CPU_MIPSR2
2069 bool
2070 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2071 select CPU_HAS_RIXI
2072 select MIPS_SPRAM
2073
2074config CPU_MIPSR6
2075 bool
2076 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2077 select CPU_HAS_RIXI
2078 select HAVE_ARCH_BITREVERSE
2079 select MIPS_ASID_BITS_VARIABLE
2080 select MIPS_CRC_SUPPORT
2081 select MIPS_SPRAM
2082
2083config TARGET_ISA_REV
2084 int
2085 default 1 if CPU_MIPSR1
2086 default 2 if CPU_MIPSR2
2087 default 6 if CPU_MIPSR6
2088 default 0
2089 help
2090 Reflects the ISA revision being targeted by the kernel build. This
2091 is effectively the Kconfig equivalent of MIPS_ISA_REV.
2092
2093config EVA
2094 bool
2095
2096config XPA
2097 bool
2098
2099config SYS_SUPPORTS_32BIT_KERNEL
2100 bool
2101config SYS_SUPPORTS_64BIT_KERNEL
2102 bool
2103config CPU_SUPPORTS_32BIT_KERNEL
2104 bool
2105config CPU_SUPPORTS_64BIT_KERNEL
2106 bool
2107config CPU_SUPPORTS_CPUFREQ
2108 bool
2109config CPU_SUPPORTS_ADDRWINCFG
2110 bool
2111config CPU_SUPPORTS_HUGEPAGES
2112 bool
2113config CPU_SUPPORTS_UNCACHED_ACCELERATED
2114 bool
2115config MIPS_PGD_C0_CONTEXT
2116 bool
2117 default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2118
2119
2120
2121
2122config HARDWARE_WATCHPOINTS
2123 bool
2124 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2125
2126menu "Kernel type"
2127
2128choice
2129 prompt "Kernel code model"
2130 help
2131 You should only select this option if you have a workload that
2132 actually benefits from 64-bit processing or if your machine has
2133 large memory. You will only be presented a single option in this
2134 menu if your system does not support both 32-bit and 64-bit kernels.
2135
2136config 32BIT
2137 bool "32-bit kernel"
2138 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2139 select TRAD_SIGNALS
2140 help
2141 Select this option if you want to build a 32-bit kernel.
2142
2143config 64BIT
2144 bool "64-bit kernel"
2145 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2146 help
2147 Select this option if you want to build a 64-bit kernel.
2148
2149endchoice
2150
2151config KVM_GUEST
2152 bool "KVM Guest Kernel"
2153 depends on BROKEN_ON_SMP
2154 help
2155 Select this option if building a guest kernel for KVM (Trap & Emulate)
2156 mode.
2157
2158config KVM_GUEST_TIMER_FREQ
2159 int "Count/Compare Timer Frequency (MHz)"
2160 depends on KVM_GUEST
2161 default 100
2162 help
2163 Set this to non-zero if building a guest kernel for KVM to skip RTC
2164 emulation when determining guest CPU Frequency. Instead, the guest's
2165 timer frequency is specified directly.
2166
2167config MIPS_VA_BITS_48
2168 bool "48 bits virtual memory"
2169 depends on 64BIT
2170 help
2171 Support a maximum at least 48 bits of application virtual
2172 memory. Default is 40 bits or less, depending on the CPU.
2173 For page sizes 16k and above, this option results in a small
2174 memory overhead for page tables. For 4k page size, a fourth
2175 level of page tables is added which imposes both a memory
2176 overhead as well as slower TLB fault handling.
2177
2178 If unsure, say N.
2179
2180choice
2181 prompt "Kernel page size"
2182 default PAGE_SIZE_4KB
2183
2184config PAGE_SIZE_4KB
2185 bool "4kB"
2186 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
2187 help
2188 This option select the standard 4kB Linux page size. On some
2189 R3000-family processors this is the only available page size. Using
2190 4kB page size will minimize memory consumption and is therefore
2191 recommended for low memory systems.
2192
2193config PAGE_SIZE_8KB
2194 bool "8kB"
2195 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
2196 depends on !MIPS_VA_BITS_48
2197 help
2198 Using 8kB page size will result in higher performance kernel at
2199 the price of higher memory consumption. This option is available
2200 only on R8000 and cnMIPS processors. Note that you will need a
2201 suitable Linux distribution to support this.
2202
2203config PAGE_SIZE_16KB
2204 bool "16kB"
2205 depends on !CPU_R3000 && !CPU_TX39XX
2206 help
2207 Using 16kB page size will result in higher performance kernel at
2208 the price of higher memory consumption. This option is available on
2209 all non-R3000 family processors. Note that you will need a suitable
2210 Linux distribution to support this.
2211
2212config PAGE_SIZE_32KB
2213 bool "32kB"
2214 depends on CPU_CAVIUM_OCTEON
2215 depends on !MIPS_VA_BITS_48
2216 help
2217 Using 32kB page size will result in higher performance kernel at
2218 the price of higher memory consumption. This option is available
2219 only on cnMIPS cores. Note that you will need a suitable Linux
2220 distribution to support this.
2221
2222config PAGE_SIZE_64KB
2223 bool "64kB"
2224 depends on !CPU_R3000 && !CPU_TX39XX
2225 help
2226 Using 64kB page size will result in higher performance kernel at
2227 the price of higher memory consumption. This option is available on
2228 all non-R3000 family processor. Not that at the time of this
2229 writing this option is still high experimental.
2230
2231endchoice
2232
2233config FORCE_MAX_ZONEORDER
2234 int "Maximum zone order"
2235 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2236 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2237 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2238 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2239 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2240 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2241 range 11 64
2242 default "11"
2243 help
2244 The kernel memory allocator divides physically contiguous memory
2245 blocks into "zones", where each zone is a power of two number of
2246 pages. This option selects the largest power of two that the kernel
2247 keeps in the memory allocator. If you need to allocate very large
2248 blocks of physically contiguous memory, then you may need to
2249 increase this value.
2250
2251 This config option is actually maximum order plus one. For example,
2252 a value of 11 means that the largest free memory block is 2^10 pages.
2253
2254 The page size is not necessarily 4KB. Keep this in mind
2255 when choosing a value for this option.
2256
2257config BOARD_SCACHE
2258 bool
2259
2260config IP22_CPU_SCACHE
2261 bool
2262 select BOARD_SCACHE
2263
2264
2265
2266
2267config MIPS_CPU_SCACHE
2268 bool
2269 select BOARD_SCACHE
2270
2271config R5000_CPU_SCACHE
2272 bool
2273 select BOARD_SCACHE
2274
2275config RM7000_CPU_SCACHE
2276 bool
2277 select BOARD_SCACHE
2278
2279config SIBYTE_DMA_PAGEOPS
2280 bool "Use DMA to clear/copy pages"
2281 depends on CPU_SB1
2282 help
2283 Instead of using the CPU to zero and copy pages, use a Data Mover
2284 channel. These DMA channels are otherwise unused by the standard
2285 SiByte Linux port. Seems to give a small performance benefit.
2286
2287config CPU_HAS_PREFETCH
2288 bool
2289
2290config CPU_GENERIC_DUMP_TLB
2291 bool
2292 default y if !(CPU_R3000 || CPU_R8000 || CPU_TX39XX)
2293
2294config MIPS_FP_SUPPORT
2295 bool "Floating Point support" if EXPERT
2296 default y
2297 help
2298 Select y to include support for floating point in the kernel
2299 including initialization of FPU hardware, FP context save & restore
2300 and emulation of an FPU where necessary. Without this support any
2301 userland program attempting to use floating point instructions will
2302 receive a SIGILL.
2303
2304 If you know that your userland will not attempt to use floating point
2305 instructions then you can say n here to shrink the kernel a little.
2306
2307 If unsure, say y.
2308
2309config CPU_R2300_FPU
2310 bool
2311 depends on MIPS_FP_SUPPORT
2312 default y if CPU_R3000 || CPU_TX39XX
2313
2314config CPU_R4K_FPU
2315 bool
2316 depends on MIPS_FP_SUPPORT
2317 default y if !CPU_R2300_FPU
2318
2319config CPU_R4K_CACHE_TLB
2320 bool
2321 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2322
2323config MIPS_MT_SMP
2324 bool "MIPS MT SMP support (1 TC on each available VPE)"
2325 default y
2326 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2327 select CPU_MIPSR2_IRQ_VI
2328 select CPU_MIPSR2_IRQ_EI
2329 select SYNC_R4K
2330 select MIPS_MT
2331 select SMP
2332 select SMP_UP
2333 select SYS_SUPPORTS_SMP
2334 select SYS_SUPPORTS_SCHED_SMT
2335 select MIPS_PERF_SHARED_TC_COUNTERS
2336 help
2337 This is a kernel model which is known as SMVP. This is supported
2338 on cores with the MT ASE and uses the available VPEs to implement
2339 virtual processors which supports SMP. This is equivalent to the
2340 Intel Hyperthreading feature. For further information go to
2341 <http://www.imgtec.com/mips/mips-multithreading.asp>.
2342
2343config MIPS_MT
2344 bool
2345
2346config SCHED_SMT
2347 bool "SMT (multithreading) scheduler support"
2348 depends on SYS_SUPPORTS_SCHED_SMT
2349 default n
2350 help
2351 SMT scheduler support improves the CPU scheduler's decision making
2352 when dealing with MIPS MT enabled cores at a cost of slightly
2353 increased overhead in some places. If unsure say N here.
2354
2355config SYS_SUPPORTS_SCHED_SMT
2356 bool
2357
2358config SYS_SUPPORTS_MULTITHREADING
2359 bool
2360
2361config MIPS_MT_FPAFF
2362 bool "Dynamic FPU affinity for FP-intensive threads"
2363 default y
2364 depends on MIPS_MT_SMP
2365
2366config MIPSR2_TO_R6_EMULATOR
2367 bool "MIPS R2-to-R6 emulator"
2368 depends on CPU_MIPSR6
2369 depends on MIPS_FP_SUPPORT
2370 default y
2371 help
2372 Choose this option if you want to run non-R6 MIPS userland code.
2373 Even if you say 'Y' here, the emulator will still be disabled by
2374 default. You can enable it using the 'mipsr2emu' kernel option.
2375 The only reason this is a build-time option is to save ~14K from the
2376 final kernel image.
2377
2378config SYS_SUPPORTS_VPE_LOADER
2379 bool
2380 depends on SYS_SUPPORTS_MULTITHREADING
2381 help
2382 Indicates that the platform supports the VPE loader, and provides
2383 physical_memsize.
2384
2385config MIPS_VPE_LOADER
2386 bool "VPE loader support."
2387 depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2388 select CPU_MIPSR2_IRQ_VI
2389 select CPU_MIPSR2_IRQ_EI
2390 select MIPS_MT
2391 help
2392 Includes a loader for loading an elf relocatable object
2393 onto another VPE and running it.
2394
2395config MIPS_VPE_LOADER_CMP
2396 bool
2397 default "y"
2398 depends on MIPS_VPE_LOADER && MIPS_CMP
2399
2400config MIPS_VPE_LOADER_MT
2401 bool
2402 default "y"
2403 depends on MIPS_VPE_LOADER && !MIPS_CMP
2404
2405config MIPS_VPE_LOADER_TOM
2406 bool "Load VPE program into memory hidden from linux"
2407 depends on MIPS_VPE_LOADER
2408 default y
2409 help
2410 The loader can use memory that is present but has been hidden from
2411 Linux using the kernel command line option "mem=xxMB". It's up to
2412 you to ensure the amount you put in the option and the space your
2413 program requires is less or equal to the amount physically present.
2414
2415config MIPS_VPE_APSP_API
2416 bool "Enable support for AP/SP API (RTLX)"
2417 depends on MIPS_VPE_LOADER
2418
2419config MIPS_VPE_APSP_API_CMP
2420 bool
2421 default "y"
2422 depends on MIPS_VPE_APSP_API && MIPS_CMP
2423
2424config MIPS_VPE_APSP_API_MT
2425 bool
2426 default "y"
2427 depends on MIPS_VPE_APSP_API && !MIPS_CMP
2428
2429config MIPS_CMP
2430 bool "MIPS CMP framework support (DEPRECATED)"
2431 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2432 select SMP
2433 select SYNC_R4K
2434 select SYS_SUPPORTS_SMP
2435 select WEAK_ORDERING
2436 default n
2437 help
2438 Select this if you are using a bootloader which implements the "CMP
2439 framework" protocol (ie. YAMON) and want your kernel to make use of
2440 its ability to start secondary CPUs.
2441
2442 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2443 instead of this.
2444
2445config MIPS_CPS
2446 bool "MIPS Coherent Processing System support"
2447 depends on SYS_SUPPORTS_MIPS_CPS
2448 select MIPS_CM
2449 select MIPS_CPS_PM if HOTPLUG_CPU
2450 select SMP
2451 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2452 select SYS_SUPPORTS_HOTPLUG_CPU
2453 select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2454 select SYS_SUPPORTS_SMP
2455 select WEAK_ORDERING
2456 help
2457 Select this if you wish to run an SMP kernel across multiple cores
2458 within a MIPS Coherent Processing System. When this option is
2459 enabled the kernel will probe for other cores and boot them with
2460 no external assistance. It is safe to enable this when hardware
2461 support is unavailable.
2462
2463config MIPS_CPS_PM
2464 depends on MIPS_CPS
2465 bool
2466
2467config MIPS_CM
2468 bool
2469 select MIPS_CPC
2470
2471config MIPS_CPC
2472 bool
2473
2474config SB1_PASS_2_WORKAROUNDS
2475 bool
2476 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2477 default y
2478
2479config SB1_PASS_2_1_WORKAROUNDS
2480 bool
2481 depends on CPU_SB1 && CPU_SB1_PASS_2
2482 default y
2483
2484choice
2485 prompt "SmartMIPS or microMIPS ASE support"
2486
2487config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2488 bool "None"
2489 help
2490 Select this if you want neither microMIPS nor SmartMIPS support
2491
2492config CPU_HAS_SMARTMIPS
2493 depends on SYS_SUPPORTS_SMARTMIPS
2494 bool "SmartMIPS"
2495 help
2496 SmartMIPS is a extension of the MIPS32 architecture aimed at
2497 increased security at both hardware and software level for
2498 smartcards. Enabling this option will allow proper use of the
2499 SmartMIPS instructions by Linux applications. However a kernel with
2500 this option will not work on a MIPS core without SmartMIPS core. If
2501 you don't know you probably don't have SmartMIPS and should say N
2502 here.
2503
2504config CPU_MICROMIPS
2505 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2506 bool "microMIPS"
2507 help
2508 When this option is enabled the kernel will be built using the
2509 microMIPS ISA
2510
2511endchoice
2512
2513config CPU_HAS_MSA
2514 bool "Support for the MIPS SIMD Architecture"
2515 depends on CPU_SUPPORTS_MSA
2516 depends on MIPS_FP_SUPPORT
2517 depends on 64BIT || MIPS_O32_FP64_SUPPORT
2518 help
2519 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2520 and a set of SIMD instructions to operate on them. When this option
2521 is enabled the kernel will support allocating & switching MSA
2522 vector register contexts. If you know that your kernel will only be
2523 running on CPUs which do not support MSA or that your userland will
2524 not be making use of it then you may wish to say N here to reduce
2525 the size & complexity of your kernel.
2526
2527 If unsure, say Y.
2528
2529config CPU_HAS_WB
2530 bool
2531
2532config XKS01
2533 bool
2534
2535config CPU_HAS_RIXI
2536 bool
2537
2538config CPU_HAS_LOAD_STORE_LR
2539 bool
2540 help
2541 CPU has support for unaligned load and store instructions:
2542 LWL, LWR, SWL, SWR (Load/store word left/right).
2543 LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit systems).
2544
2545
2546
2547
2548config CPU_MIPSR2_IRQ_VI
2549 bool
2550
2551
2552
2553
2554config CPU_MIPSR2_IRQ_EI
2555 bool
2556
2557config CPU_HAS_SYNC
2558 bool
2559 depends on !CPU_R3000
2560 default y
2561
2562
2563
2564
2565config CPU_DADDI_WORKAROUNDS
2566 bool
2567
2568config CPU_R4000_WORKAROUNDS
2569 bool
2570 select CPU_R4400_WORKAROUNDS
2571
2572config CPU_R4400_WORKAROUNDS
2573 bool
2574
2575config MIPS_ASID_SHIFT
2576 int
2577 default 6 if CPU_R3000 || CPU_TX39XX
2578 default 4 if CPU_R8000
2579 default 0
2580
2581config MIPS_ASID_BITS
2582 int
2583 default 0 if MIPS_ASID_BITS_VARIABLE
2584 default 6 if CPU_R3000 || CPU_TX39XX
2585 default 8
2586
2587config MIPS_ASID_BITS_VARIABLE
2588 bool
2589
2590config MIPS_CRC_SUPPORT
2591 bool
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606config HIGHMEM
2607 bool "High Memory Support"
2608 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2609
2610config CPU_SUPPORTS_HIGHMEM
2611 bool
2612
2613config SYS_SUPPORTS_HIGHMEM
2614 bool
2615
2616config SYS_SUPPORTS_SMARTMIPS
2617 bool
2618
2619config SYS_SUPPORTS_MICROMIPS
2620 bool
2621
2622config SYS_SUPPORTS_MIPS16
2623 bool
2624 help
2625 This option must be set if a kernel might be executed on a MIPS16-
2626 enabled CPU even if MIPS16 is not actually being used. In other
2627 words, it makes the kernel MIPS16-tolerant.
2628
2629config CPU_SUPPORTS_MSA
2630 bool
2631
2632config ARCH_FLATMEM_ENABLE
2633 def_bool y
2634 depends on !NUMA && !CPU_LOONGSON2
2635
2636config ARCH_DISCONTIGMEM_ENABLE
2637 bool
2638 default y if SGI_IP27
2639 help
2640 Say Y to support efficient handling of discontiguous physical memory,
2641 for architectures which are either NUMA (Non-Uniform Memory Access)
2642 or have huge holes in the physical address space for other reasons.
2643 See <file:Documentation/vm/numa.rst> for more.
2644
2645config ARCH_SPARSEMEM_ENABLE
2646 bool
2647 select SPARSEMEM_STATIC
2648
2649config NUMA
2650 bool "NUMA Support"
2651 depends on SYS_SUPPORTS_NUMA
2652 help
2653 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2654 Access). This option improves performance on systems with more
2655 than two nodes; on two node systems it is generally better to
2656 leave it disabled; on single node systems disable this option
2657 disabled.
2658
2659config SYS_SUPPORTS_NUMA
2660 bool
2661
2662config RELOCATABLE
2663 bool "Relocatable kernel"
2664 depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC)
2665 help
2666 This builds a kernel image that retains relocation information
2667 so it can be loaded someplace besides the default 1MB.
2668 The relocations make the kernel binary about 15% larger,
2669 but are discarded at runtime
2670
2671config RELOCATION_TABLE_SIZE
2672 hex "Relocation table size"
2673 depends on RELOCATABLE
2674 range 0x0 0x01000000
2675 default "0x00100000"
2676 ---help---
2677 A table of relocation data will be appended to the kernel binary
2678 and parsed at boot to fix up the relocated kernel.
2679
2680 This option allows the amount of space reserved for the table to be
2681 adjusted, although the default of 1Mb should be ok in most cases.
2682
2683 The build will fail and a valid size suggested if this is too small.
2684
2685 If unsure, leave at the default value.
2686
2687config RANDOMIZE_BASE
2688 bool "Randomize the address of the kernel image"
2689 depends on RELOCATABLE
2690 ---help---
2691 Randomizes the physical and virtual address at which the
2692 kernel image is loaded, as a security feature that
2693 deters exploit attempts relying on knowledge of the location
2694 of kernel internals.
2695
2696 Entropy is generated using any coprocessor 0 registers available.
2697
2698 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2699
2700 If unsure, say N.
2701
2702config RANDOMIZE_BASE_MAX_OFFSET
2703 hex "Maximum kASLR offset" if EXPERT
2704 depends on RANDOMIZE_BASE
2705 range 0x0 0x40000000 if EVA || 64BIT
2706 range 0x0 0x08000000
2707 default "0x01000000"
2708 ---help---
2709 When kASLR is active, this provides the maximum offset that will
2710 be applied to the kernel image. It should be set according to the
2711 amount of physical RAM available in the target system minus
2712 PHYSICAL_START and must be a power of 2.
2713
2714 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2715 EVA or 64-bit. The default is 16Mb.
2716
2717config NODES_SHIFT
2718 int
2719 default "6"
2720 depends on NEED_MULTIPLE_NODES
2721
2722config HW_PERF_EVENTS
2723 bool "Enable hardware performance counter support for perf events"
2724 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2725 default y
2726 help
2727 Enable hardware performance counter support for perf events. If
2728 disabled, perf events will use software events only.
2729
2730config SMP
2731 bool "Multi-Processing support"
2732 depends on SYS_SUPPORTS_SMP
2733 help
2734 This enables support for systems with more than one CPU. If you have
2735 a system with only one CPU, say N. If you have a system with more
2736 than one CPU, say Y.
2737
2738 If you say N here, the kernel will run on uni- and multiprocessor
2739 machines, but will use only one CPU of a multiprocessor machine. If
2740 you say Y here, the kernel will run on many, but not all,
2741 uniprocessor machines. On a uniprocessor machine, the kernel
2742 will run faster if you say N here.
2743
2744 People using multiprocessor machines who say Y here should also say
2745 Y to "Enhanced Real Time Clock Support", below.
2746
2747 See also the SMP-HOWTO available at
2748 <http://www.tldp.org/docs.html#howto>.
2749
2750 If you don't know what to do here, say N.
2751
2752config HOTPLUG_CPU
2753 bool "Support for hot-pluggable CPUs"
2754 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2755 help
2756 Say Y here to allow turning CPUs off and on. CPUs can be
2757 controlled through /sys/devices/system/cpu.
2758 (Note: power management support will enable this option
2759 automatically on SMP systems. )
2760 Say N if you want to disable CPU hotplug.
2761
2762config SMP_UP
2763 bool
2764
2765config SYS_SUPPORTS_MIPS_CMP
2766 bool
2767
2768config SYS_SUPPORTS_MIPS_CPS
2769 bool
2770
2771config SYS_SUPPORTS_SMP
2772 bool
2773
2774config NR_CPUS_DEFAULT_4
2775 bool
2776
2777config NR_CPUS_DEFAULT_8
2778 bool
2779
2780config NR_CPUS_DEFAULT_16
2781 bool
2782
2783config NR_CPUS_DEFAULT_32
2784 bool
2785
2786config NR_CPUS_DEFAULT_64
2787 bool
2788
2789config NR_CPUS
2790 int "Maximum number of CPUs (2-256)"
2791 range 2 256
2792 depends on SMP
2793 default "4" if NR_CPUS_DEFAULT_4
2794 default "8" if NR_CPUS_DEFAULT_8
2795 default "16" if NR_CPUS_DEFAULT_16
2796 default "32" if NR_CPUS_DEFAULT_32
2797 default "64" if NR_CPUS_DEFAULT_64
2798 help
2799 This allows you to specify the maximum number of CPUs which this
2800 kernel will support. The maximum supported value is 32 for 32-bit
2801 kernel and 64 for 64-bit kernels; the minimum value which makes
2802 sense is 1 for Qemu (useful only for kernel debugging purposes)
2803 and 2 for all others.
2804
2805 This is purely to save memory - each supported CPU adds
2806 approximately eight kilobytes to the kernel image. For best
2807 performance should round up your number of processors to the next
2808 power of two.
2809
2810config MIPS_PERF_SHARED_TC_COUNTERS
2811 bool
2812
2813config MIPS_NR_CPU_NR_MAP_1024
2814 bool
2815
2816config MIPS_NR_CPU_NR_MAP
2817 int
2818 depends on SMP
2819 default 1024 if MIPS_NR_CPU_NR_MAP_1024
2820 default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
2821
2822
2823
2824
2825
2826choice
2827 prompt "Timer frequency"
2828 default HZ_250
2829 help
2830 Allows the configuration of the timer frequency.
2831
2832 config HZ_24
2833 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2834
2835 config HZ_48
2836 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2837
2838 config HZ_100
2839 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2840
2841 config HZ_128
2842 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2843
2844 config HZ_250
2845 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2846
2847 config HZ_256
2848 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2849
2850 config HZ_1000
2851 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2852
2853 config HZ_1024
2854 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2855
2856endchoice
2857
2858config SYS_SUPPORTS_24HZ
2859 bool
2860
2861config SYS_SUPPORTS_48HZ
2862 bool
2863
2864config SYS_SUPPORTS_100HZ
2865 bool
2866
2867config SYS_SUPPORTS_128HZ
2868 bool
2869
2870config SYS_SUPPORTS_250HZ
2871 bool
2872
2873config SYS_SUPPORTS_256HZ
2874 bool
2875
2876config SYS_SUPPORTS_1000HZ
2877 bool
2878
2879config SYS_SUPPORTS_1024HZ
2880 bool
2881
2882config SYS_SUPPORTS_ARBIT_HZ
2883 bool
2884 default y if !SYS_SUPPORTS_24HZ && \
2885 !SYS_SUPPORTS_48HZ && \
2886 !SYS_SUPPORTS_100HZ && \
2887 !SYS_SUPPORTS_128HZ && \
2888 !SYS_SUPPORTS_250HZ && \
2889 !SYS_SUPPORTS_256HZ && \
2890 !SYS_SUPPORTS_1000HZ && \
2891 !SYS_SUPPORTS_1024HZ
2892
2893config HZ
2894 int
2895 default 24 if HZ_24
2896 default 48 if HZ_48
2897 default 100 if HZ_100
2898 default 128 if HZ_128
2899 default 250 if HZ_250
2900 default 256 if HZ_256
2901 default 1000 if HZ_1000
2902 default 1024 if HZ_1024
2903
2904config SCHED_HRTICK
2905 def_bool HIGH_RES_TIMERS
2906
2907config KEXEC
2908 bool "Kexec system call"
2909 select KEXEC_CORE
2910 help
2911 kexec is a system call that implements the ability to shutdown your
2912 current kernel, and to start another kernel. It is like a reboot
2913 but it is independent of the system firmware. And like a reboot
2914 you can start any kernel with it, not just Linux.
2915
2916 The name comes from the similarity to the exec system call.
2917
2918 It is an ongoing process to be certain the hardware in a machine
2919 is properly shutdown, so do not be surprised if this code does not
2920 initially work for you. As of this writing the exact hardware
2921 interface is strongly in flux, so no good recommendation can be
2922 made.
2923
2924config CRASH_DUMP
2925 bool "Kernel crash dumps"
2926 help
2927 Generate crash dump after being started by kexec.
2928 This should be normally only set in special crash dump kernels
2929 which are loaded in the main kernel with kexec-tools into
2930 a specially reserved region and then later executed after
2931 a crash by kdump/kexec. The crash dump kernel must be compiled
2932 to a memory address not used by the main kernel or firmware using
2933 PHYSICAL_START.
2934
2935config PHYSICAL_START
2936 hex "Physical address where the kernel is loaded"
2937 default "0xffffffff84000000"
2938 depends on CRASH_DUMP
2939 help
2940 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2941 If you plan to use kernel for capturing the crash dump change
2942 this value to start of the reserved region (the "X" value as
2943 specified in the "crashkernel=YM@XM" command line boot parameter
2944 passed to the panic-ed kernel).
2945
2946config SECCOMP
2947 bool "Enable seccomp to safely compute untrusted bytecode"
2948 depends on PROC_FS
2949 default y
2950 help
2951 This kernel feature is useful for number crunching applications
2952 that may need to compute untrusted bytecode during their
2953 execution. By using pipes or other transports made available to
2954 the process as file descriptors supporting the read/write
2955 syscalls, it's possible to isolate those applications in
2956 their own address space using seccomp. Once seccomp is
2957 enabled via /proc/<pid>/seccomp, it cannot be disabled
2958 and the task is only allowed to execute a few safe syscalls
2959 defined by each seccomp mode.
2960
2961 If unsure, say Y. Only embedded should say N here.
2962
2963config MIPS_O32_FP64_SUPPORT
2964 bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
2965 depends on 32BIT || MIPS32_O32
2966 help
2967 When this is enabled, the kernel will support use of 64-bit floating
2968 point registers with binaries using the O32 ABI along with the
2969 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2970 32-bit MIPS systems this support is at the cost of increasing the
2971 size and complexity of the compiled FPU emulator. Thus if you are
2972 running a MIPS32 system and know that none of your userland binaries
2973 will require 64-bit floating point, you may wish to reduce the size
2974 of your kernel & potentially improve FP emulation performance by
2975 saying N here.
2976
2977 Although binutils currently supports use of this flag the details
2978 concerning its effect upon the O32 ABI in userland are still being
2979 worked on. In order to avoid userland becoming dependant upon current
2980 behaviour before the details have been finalised, this option should
2981 be considered experimental and only enabled by those working upon
2982 said details.
2983
2984 If unsure, say N.
2985
2986config USE_OF
2987 bool
2988 select OF
2989 select OF_EARLY_FLATTREE
2990 select IRQ_DOMAIN
2991
2992config UHI_BOOT
2993 bool
2994
2995config BUILTIN_DTB
2996 bool
2997
2998choice
2999 prompt "Kernel appended dtb support" if USE_OF
3000 default MIPS_NO_APPENDED_DTB
3001
3002 config MIPS_NO_APPENDED_DTB
3003 bool "None"
3004 help
3005 Do not enable appended dtb support.
3006
3007 config MIPS_ELF_APPENDED_DTB
3008 bool "vmlinux"
3009 help
3010 With this option, the boot code will look for a device tree binary
3011 DTB) included in the vmlinux ELF section .appended_dtb. By default
3012 it is empty and the DTB can be appended using binutils command
3013 objcopy:
3014
3015 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
3016
3017 This is meant as a backward compatiblity convenience for those
3018 systems with a bootloader that can't be upgraded to accommodate
3019 the documented boot protocol using a device tree.
3020
3021 config MIPS_RAW_APPENDED_DTB
3022 bool "vmlinux.bin or vmlinuz.bin"
3023 help
3024 With this option, the boot code will look for a device tree binary
3025 DTB) appended to raw vmlinux.bin or vmlinuz.bin.
3026 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
3027
3028 This is meant as a backward compatibility convenience for those
3029 systems with a bootloader that can't be upgraded to accommodate
3030 the documented boot protocol using a device tree.
3031
3032 Beware that there is very little in terms of protection against
3033 this option being confused by leftover garbage in memory that might
3034 look like a DTB header after a reboot if no actual DTB is appended
3035 to vmlinux.bin. Do not leave this option active in a production kernel
3036 if you don't intend to always append a DTB.
3037endchoice
3038
3039choice
3040 prompt "Kernel command line type" if !CMDLINE_OVERRIDE
3041 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
3042 !MIPS_MALTA && \
3043 !CAVIUM_OCTEON_SOC
3044 default MIPS_CMDLINE_FROM_BOOTLOADER
3045
3046 config MIPS_CMDLINE_FROM_DTB
3047 depends on USE_OF
3048 bool "Dtb kernel arguments if available"
3049
3050 config MIPS_CMDLINE_DTB_EXTEND
3051 depends on USE_OF
3052 bool "Extend dtb kernel arguments with bootloader arguments"
3053
3054 config MIPS_CMDLINE_FROM_BOOTLOADER
3055 bool "Bootloader kernel arguments if available"
3056
3057 config MIPS_CMDLINE_BUILTIN_EXTEND
3058 depends on CMDLINE_BOOL
3059 bool "Extend builtin kernel arguments with bootloader arguments"
3060endchoice
3061
3062endmenu
3063
3064config LOCKDEP_SUPPORT
3065 bool
3066 default y
3067
3068config STACKTRACE_SUPPORT
3069 bool
3070 default y
3071
3072config HAVE_LATENCYTOP_SUPPORT
3073 bool
3074 default y
3075
3076config PGTABLE_LEVELS
3077 int
3078 default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3079 default 3 if 64BIT && !PAGE_SIZE_64KB
3080 default 2
3081
3082config MIPS_AUTO_PFN_OFFSET
3083 bool
3084
3085menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
3086
3087config PCI_DRIVERS_GENERIC
3088 select PCI_DOMAINS_GENERIC if PCI
3089 bool
3090
3091config PCI_DRIVERS_LEGACY
3092 def_bool !PCI_DRIVERS_GENERIC
3093 select NO_GENERIC_PCI_IOPORT_MAP
3094 select PCI_DOMAINS if PCI
3095
3096
3097
3098
3099
3100
3101config ISA
3102 bool
3103
3104config TC
3105 bool "TURBOchannel support"
3106 depends on MACH_DECSTATION
3107 help
3108 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3109 processors. TURBOchannel programming specifications are available
3110 at:
3111 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3112 and:
3113 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3114 Linux driver support status is documented at:
3115 <http://www.linux-mips.org/wiki/DECstation>
3116
3117config MMU
3118 bool
3119 default y
3120
3121config ARCH_MMAP_RND_BITS_MIN
3122 default 12 if 64BIT
3123 default 8
3124
3125config ARCH_MMAP_RND_BITS_MAX
3126 default 18 if 64BIT
3127 default 15
3128
3129config ARCH_MMAP_RND_COMPAT_BITS_MIN
3130 default 8
3131
3132config ARCH_MMAP_RND_COMPAT_BITS_MAX
3133 default 15
3134
3135config I8253
3136 bool
3137 select CLKSRC_I8253
3138 select CLKEVT_I8253
3139 select MIPS_EXTERNAL_TIMER
3140
3141config ZONE_DMA
3142 bool
3143
3144config ZONE_DMA32
3145 bool
3146
3147endmenu
3148
3149config TRAD_SIGNALS
3150 bool
3151
3152config MIPS32_COMPAT
3153 bool
3154
3155config COMPAT
3156 bool
3157
3158config SYSVIPC_COMPAT
3159 bool
3160
3161config MIPS32_O32
3162 bool "Kernel support for o32 binaries"
3163 depends on 64BIT
3164 select ARCH_WANT_OLD_COMPAT_IPC
3165 select COMPAT
3166 select MIPS32_COMPAT
3167 select SYSVIPC_COMPAT if SYSVIPC
3168 help
3169 Select this option if you want to run o32 binaries. These are pure
3170 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
3171 existing binaries are in this format.
3172
3173 If unsure, say Y.
3174
3175config MIPS32_N32
3176 bool "Kernel support for n32 binaries"
3177 depends on 64BIT
3178 select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
3179 select COMPAT
3180 select MIPS32_COMPAT
3181 select SYSVIPC_COMPAT if SYSVIPC
3182 help
3183 Select this option if you want to run n32 binaries. These are
3184 64-bit binaries using 32-bit quantities for addressing and certain
3185 data that would normally be 64-bit. They are used in special
3186 cases.
3187
3188 If unsure, say N.
3189
3190config BINFMT_ELF32
3191 bool
3192 default y if MIPS32_O32 || MIPS32_N32
3193 select ELFCORE
3194
3195menu "Power management options"
3196
3197config ARCH_HIBERNATION_POSSIBLE
3198 def_bool y
3199 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3200
3201config ARCH_SUSPEND_POSSIBLE
3202 def_bool y
3203 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3204
3205source "kernel/power/Kconfig"
3206
3207endmenu
3208
3209config MIPS_EXTERNAL_TIMER
3210 bool
3211
3212menu "CPU Power Management"
3213
3214if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3215source "drivers/cpufreq/Kconfig"
3216endif
3217
3218source "drivers/cpuidle/Kconfig"
3219
3220endmenu
3221
3222source "drivers/firmware/Kconfig"
3223
3224source "arch/mips/kvm/Kconfig"
3225