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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_OPROFILE
13 select HAVE_PERF_EVENTS
14 select PERF_USE_VMALLOC
15 select HAVE_ARCH_KGDB
16 select HAVE_ARCH_SECCOMP_FILTER
17 select HAVE_ARCH_TRACEHOOK
18 select HAVE_BPF_JIT if !CPU_MICROMIPS
19 select HAVE_FUNCTION_TRACER
20 select HAVE_DYNAMIC_FTRACE
21 select HAVE_FTRACE_MCOUNT_RECORD
22 select HAVE_C_RECORDMCOUNT
23 select HAVE_FUNCTION_GRAPH_TRACER
24 select HAVE_KPROBES
25 select HAVE_KRETPROBES
26 select HAVE_SYSCALL_TRACEPOINTS
27 select HAVE_DEBUG_KMEMLEAK
28 select HAVE_SYSCALL_TRACEPOINTS
29 select ARCH_HAS_ELF_RANDOMIZE
30 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
31 select RTC_LIB if !MACH_LOONGSON64
32 select GENERIC_ATOMIC64 if !64BIT
33 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
34 select HAVE_DMA_CONTIGUOUS
35 select HAVE_DMA_API_DEBUG
36 select GENERIC_IRQ_PROBE
37 select GENERIC_IRQ_SHOW
38 select GENERIC_PCI_IOMAP
39 select HAVE_ARCH_JUMP_LABEL
40 select ARCH_WANT_IPC_PARSE_VERSION
41 select IRQ_FORCED_THREADING
42 select HAVE_MEMBLOCK
43 select HAVE_MEMBLOCK_NODE_MAP
44 select ARCH_DISCARD_MEMBLOCK
45 select GENERIC_SMP_IDLE_THREAD
46 select BUILDTIME_EXTABLE_SORT
47 select GENERIC_CLOCKEVENTS
48 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
49 select GENERIC_CMOS_UPDATE
50 select HAVE_MOD_ARCH_SPECIFIC
51 select VIRT_TO_BUS
52 select MODULES_USE_ELF_REL if MODULES
53 select MODULES_USE_ELF_RELA if MODULES && 64BIT
54 select CLONE_BACKWARDS
55 select HAVE_DEBUG_STACKOVERFLOW
56 select HAVE_CC_STACKPROTECTOR
57 select CPU_PM if CPU_IDLE
58 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
59 select ARCH_BINFMT_ELF_STATE
60 select SYSCTL_EXCEPTION_TRACE
61 select HAVE_VIRT_CPU_ACCOUNTING_GEN
62 select HAVE_IRQ_TIME_ACCOUNTING
63 select GENERIC_TIME_VSYSCALL
64 select ARCH_CLOCKSOURCE_DATA
65
66menu "Machine selection"
67
68choice
69 prompt "System type"
70 default SGI_IP22
71
72config MIPS_ALCHEMY
73 bool "Alchemy processor based machines"
74 select ARCH_PHYS_ADDR_T_64BIT
75 select CEVT_R4K
76 select CSRC_R4K
77 select IRQ_MIPS_CPU
78 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is
79 select SYS_HAS_CPU_MIPS32_R1
80 select SYS_SUPPORTS_32BIT_KERNEL
81 select SYS_SUPPORTS_APM_EMULATION
82 select ARCH_REQUIRE_GPIOLIB
83 select SYS_SUPPORTS_ZBOOT
84 select COMMON_CLK
85
86config AR7
87 bool "Texas Instruments AR7"
88 select BOOT_ELF32
89 select DMA_NONCOHERENT
90 select CEVT_R4K
91 select CSRC_R4K
92 select IRQ_MIPS_CPU
93 select NO_EXCEPT_FILL
94 select SWAP_IO_SPACE
95 select SYS_HAS_CPU_MIPS32_R1
96 select SYS_HAS_EARLY_PRINTK
97 select SYS_SUPPORTS_32BIT_KERNEL
98 select SYS_SUPPORTS_LITTLE_ENDIAN
99 select SYS_SUPPORTS_MIPS16
100 select SYS_SUPPORTS_ZBOOT_UART16550
101 select ARCH_REQUIRE_GPIOLIB
102 select VLYNQ
103 select HAVE_CLK
104 help
105 Support for the Texas Instruments AR7 System-on-a-Chip
106 family: TNETD7100, 7200 and 7300.
107
108config ATH25
109 bool "Atheros AR231x/AR531x SoC support"
110 select CEVT_R4K
111 select CSRC_R4K
112 select DMA_NONCOHERENT
113 select IRQ_MIPS_CPU
114 select IRQ_DOMAIN
115 select SYS_HAS_CPU_MIPS32_R1
116 select SYS_SUPPORTS_BIG_ENDIAN
117 select SYS_SUPPORTS_32BIT_KERNEL
118 select SYS_HAS_EARLY_PRINTK
119 help
120 Support for Atheros AR231x and Atheros AR531x based boards
121
122config ATH79
123 bool "Atheros AR71XX/AR724X/AR913X based boards"
124 select ARCH_HAS_RESET_CONTROLLER
125 select ARCH_REQUIRE_GPIOLIB
126 select BOOT_RAW
127 select CEVT_R4K
128 select CSRC_R4K
129 select DMA_NONCOHERENT
130 select HAVE_CLK
131 select COMMON_CLK
132 select CLKDEV_LOOKUP
133 select IRQ_MIPS_CPU
134 select MIPS_MACHINE
135 select SYS_HAS_CPU_MIPS32_R2
136 select SYS_HAS_EARLY_PRINTK
137 select SYS_SUPPORTS_32BIT_KERNEL
138 select SYS_SUPPORTS_BIG_ENDIAN
139 select SYS_SUPPORTS_MIPS16
140 select SYS_SUPPORTS_ZBOOT
141 select USE_OF
142 help
143 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
144
145config BMIPS_GENERIC
146 bool "Broadcom Generic BMIPS kernel"
147 select BOOT_RAW
148 select NO_EXCEPT_FILL
149 select USE_OF
150 select CEVT_R4K
151 select CSRC_R4K
152 select SYNC_R4K
153 select COMMON_CLK
154 select BCM6345_L1_IRQ
155 select BCM7038_L1_IRQ
156 select BCM7120_L2_IRQ
157 select BRCMSTB_L2_IRQ
158 select IRQ_MIPS_CPU
159 select DMA_NONCOHERENT
160 select SYS_SUPPORTS_32BIT_KERNEL
161 select SYS_SUPPORTS_LITTLE_ENDIAN
162 select SYS_SUPPORTS_BIG_ENDIAN
163 select SYS_SUPPORTS_HIGHMEM
164 select SYS_HAS_CPU_BMIPS32_3300
165 select SYS_HAS_CPU_BMIPS4350
166 select SYS_HAS_CPU_BMIPS4380
167 select SYS_HAS_CPU_BMIPS5000
168 select SWAP_IO_SPACE
169 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
170 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
171 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
172 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
173 select ARCH_WANT_OPTIONAL_GPIOLIB
174 help
175 Build a generic DT-based kernel image that boots on select
176 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
177 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
178 must be set appropriately for your board.
179
180config BCM47XX
181 bool "Broadcom BCM47XX based boards"
182 select ARCH_WANT_OPTIONAL_GPIOLIB
183 select BOOT_RAW
184 select CEVT_R4K
185 select CSRC_R4K
186 select DMA_NONCOHERENT
187 select HW_HAS_PCI
188 select IRQ_MIPS_CPU
189 select SYS_HAS_CPU_MIPS32_R1
190 select NO_EXCEPT_FILL
191 select SYS_SUPPORTS_32BIT_KERNEL
192 select SYS_SUPPORTS_LITTLE_ENDIAN
193 select SYS_SUPPORTS_MIPS16
194 select SYS_HAS_EARLY_PRINTK
195 select USE_GENERIC_EARLY_PRINTK_8250
196 select GPIOLIB
197 select LEDS_GPIO_REGISTER
198 select BCM47XX_NVRAM
199 help
200 Support for BCM47XX based boards
201
202config BCM63XX
203 bool "Broadcom BCM63XX based boards"
204 select BOOT_RAW
205 select CEVT_R4K
206 select CSRC_R4K
207 select SYNC_R4K
208 select DMA_NONCOHERENT
209 select IRQ_MIPS_CPU
210 select SYS_SUPPORTS_32BIT_KERNEL
211 select SYS_SUPPORTS_BIG_ENDIAN
212 select SYS_HAS_EARLY_PRINTK
213 select SWAP_IO_SPACE
214 select ARCH_REQUIRE_GPIOLIB
215 select HAVE_CLK
216 select MIPS_L1_CACHE_SHIFT_4
217 help
218 Support for BCM63XX based boards
219
220config MIPS_COBALT
221 bool "Cobalt Server"
222 select CEVT_R4K
223 select CSRC_R4K
224 select CEVT_GT641XX
225 select DMA_NONCOHERENT
226 select HW_HAS_PCI
227 select I8253
228 select I8259
229 select IRQ_MIPS_CPU
230 select IRQ_GT641XX
231 select PCI_GT64XXX_PCI0
232 select PCI
233 select SYS_HAS_CPU_NEVADA
234 select SYS_HAS_EARLY_PRINTK
235 select SYS_SUPPORTS_32BIT_KERNEL
236 select SYS_SUPPORTS_64BIT_KERNEL
237 select SYS_SUPPORTS_LITTLE_ENDIAN
238 select USE_GENERIC_EARLY_PRINTK_8250
239
240config MACH_DECSTATION
241 bool "DECstations"
242 select BOOT_ELF32
243 select CEVT_DS1287
244 select CEVT_R4K if CPU_R4X00
245 select CSRC_IOASIC
246 select CSRC_R4K if CPU_R4X00
247 select CPU_DADDI_WORKAROUNDS if 64BIT
248 select CPU_R4000_WORKAROUNDS if 64BIT
249 select CPU_R4400_WORKAROUNDS if 64BIT
250 select DMA_NONCOHERENT
251 select NO_IOPORT_MAP
252 select IRQ_MIPS_CPU
253 select SYS_HAS_CPU_R3000
254 select SYS_HAS_CPU_R4X00
255 select SYS_SUPPORTS_32BIT_KERNEL
256 select SYS_SUPPORTS_64BIT_KERNEL
257 select SYS_SUPPORTS_LITTLE_ENDIAN
258 select SYS_SUPPORTS_128HZ
259 select SYS_SUPPORTS_256HZ
260 select SYS_SUPPORTS_1024HZ
261 select MIPS_L1_CACHE_SHIFT_4
262 help
263 This enables support for DEC's MIPS based workstations. For details
264 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
265 DECstation porting pages on <http://decstation.unix-ag.org/>.
266
267 If you have one of the following DECstation Models you definitely
268 want to choose R4xx0 for the CPU Type:
269
270 DECstation 5000/50
271 DECstation 5000/150
272 DECstation 5000/260
273 DECsystem 5900/260
274
275 otherwise choose R3000.
276
277config MACH_JAZZ
278 bool "Jazz family of machines"
279 select FW_ARC
280 select FW_ARC32
281 select ARCH_MAY_HAVE_PC_FDC
282 select CEVT_R4K
283 select CSRC_R4K
284 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
285 select GENERIC_ISA_DMA
286 select HAVE_PCSPKR_PLATFORM
287 select IRQ_MIPS_CPU
288 select I8253
289 select I8259
290 select ISA
291 select SYS_HAS_CPU_R4X00
292 select SYS_SUPPORTS_32BIT_KERNEL
293 select SYS_SUPPORTS_64BIT_KERNEL
294 select SYS_SUPPORTS_100HZ
295 help
296 This a family of machines based on the MIPS R4030 chipset which was
297 used by several vendors to build RISC/os and Windows NT workstations.
298 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
299 Olivetti M700-10 workstations.
300
301config MACH_INGENIC
302 bool "Ingenic SoC based machines"
303 select SYS_SUPPORTS_32BIT_KERNEL
304 select SYS_SUPPORTS_LITTLE_ENDIAN
305 select SYS_SUPPORTS_ZBOOT_UART16550
306 select DMA_NONCOHERENT
307 select IRQ_MIPS_CPU
308 select ARCH_REQUIRE_GPIOLIB
309 select COMMON_CLK
310 select GENERIC_IRQ_CHIP
311 select BUILTIN_DTB
312 select USE_OF
313 select LIBFDT
314
315config LANTIQ
316 bool "Lantiq based platforms"
317 select DMA_NONCOHERENT
318 select IRQ_MIPS_CPU
319 select CEVT_R4K
320 select CSRC_R4K
321 select SYS_HAS_CPU_MIPS32_R1
322 select SYS_HAS_CPU_MIPS32_R2
323 select SYS_SUPPORTS_BIG_ENDIAN
324 select SYS_SUPPORTS_32BIT_KERNEL
325 select SYS_SUPPORTS_MIPS16
326 select SYS_SUPPORTS_MULTITHREADING
327 select SYS_HAS_EARLY_PRINTK
328 select ARCH_REQUIRE_GPIOLIB
329 select SWAP_IO_SPACE
330 select BOOT_RAW
331 select CLKDEV_LOOKUP
332 select USE_OF
333 select PINCTRL
334 select PINCTRL_LANTIQ
335 select ARCH_HAS_RESET_CONTROLLER
336 select RESET_CONTROLLER
337
338config LASAT
339 bool "LASAT Networks platforms"
340 select CEVT_R4K
341 select CRC32
342 select CSRC_R4K
343 select DMA_NONCOHERENT
344 select SYS_HAS_EARLY_PRINTK
345 select HW_HAS_PCI
346 select IRQ_MIPS_CPU
347 select PCI_GT64XXX_PCI0
348 select MIPS_NILE4
349 select R5000_CPU_SCACHE
350 select SYS_HAS_CPU_R5000
351 select SYS_SUPPORTS_32BIT_KERNEL
352 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
353 select SYS_SUPPORTS_LITTLE_ENDIAN
354
355config MACH_LOONGSON32
356 bool "Loongson-1 family of machines"
357 select SYS_SUPPORTS_ZBOOT
358 help
359 This enables support for the Loongson-1 family of machines.
360
361 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
362 the Institute of Computing Technology (ICT), Chinese Academy of
363 Sciences (CAS).
364
365config MACH_LOONGSON64
366 bool "Loongson-2/3 family of machines"
367 select SYS_SUPPORTS_ZBOOT
368 help
369 This enables the support of Loongson-2/3 family of machines.
370
371 Loongson-2 is a family of single-core CPUs and Loongson-3 is a
372 family of multi-core CPUs. They are both 64-bit general-purpose
373 MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute
374 of Computing Technology (ICT), Chinese Academy of Sciences (CAS)
375 in the People's Republic of China. The chief architect is Professor
376 Weiwu Hu.
377
378config MACH_PISTACHIO
379 bool "IMG Pistachio SoC based boards"
380 select ARCH_REQUIRE_GPIOLIB
381 select BOOT_ELF32
382 select BOOT_RAW
383 select CEVT_R4K
384 select CLKSRC_MIPS_GIC
385 select COMMON_CLK
386 select CSRC_R4K
387 select DMA_MAYBE_COHERENT
388 select IRQ_MIPS_CPU
389 select LIBFDT
390 select MFD_SYSCON
391 select MIPS_CPU_SCACHE
392 select MIPS_GIC
393 select PINCTRL
394 select REGULATOR
395 select SYS_HAS_CPU_MIPS32_R2
396 select SYS_SUPPORTS_32BIT_KERNEL
397 select SYS_SUPPORTS_LITTLE_ENDIAN
398 select SYS_SUPPORTS_MIPS_CPS
399 select SYS_SUPPORTS_MULTITHREADING
400 select SYS_SUPPORTS_ZBOOT
401 select SYS_HAS_EARLY_PRINTK
402 select USE_GENERIC_EARLY_PRINTK_8250
403 select USE_OF
404 help
405 This enables support for the IMG Pistachio SoC platform.
406
407config MACH_XILFPGA
408 bool "MIPSfpga Xilinx based boards"
409 select ARCH_REQUIRE_GPIOLIB
410 select BOOT_ELF32
411 select BOOT_RAW
412 select BUILTIN_DTB
413 select CEVT_R4K
414 select COMMON_CLK
415 select CSRC_R4K
416 select IRQ_MIPS_CPU
417 select LIBFDT
418 select MIPS_CPU_SCACHE
419 select SYS_HAS_EARLY_PRINTK
420 select SYS_HAS_CPU_MIPS32_R2
421 select SYS_SUPPORTS_32BIT_KERNEL
422 select SYS_SUPPORTS_LITTLE_ENDIAN
423 select SYS_SUPPORTS_ZBOOT_UART16550
424 select USE_OF
425 select USE_GENERIC_EARLY_PRINTK_8250
426 help
427 This enables support for the IMG University Program MIPSfpga platform.
428
429config MIPS_MALTA
430 bool "MIPS Malta board"
431 select ARCH_MAY_HAVE_PC_FDC
432 select BOOT_ELF32
433 select BOOT_RAW
434 select BUILTIN_DTB
435 select CEVT_R4K
436 select CSRC_R4K
437 select CLKSRC_MIPS_GIC
438 select COMMON_CLK
439 select DMA_MAYBE_COHERENT
440 select GENERIC_ISA_DMA
441 select HAVE_PCSPKR_PLATFORM
442 select IRQ_MIPS_CPU
443 select MIPS_GIC
444 select HW_HAS_PCI
445 select I8253
446 select I8259
447 select MIPS_BONITO64
448 select MIPS_CPU_SCACHE
449 select MIPS_L1_CACHE_SHIFT_6
450 select PCI_GT64XXX_PCI0
451 select MIPS_MSC
452 select SMP_UP if SMP
453 select SWAP_IO_SPACE
454 select SYS_HAS_CPU_MIPS32_R1
455 select SYS_HAS_CPU_MIPS32_R2
456 select SYS_HAS_CPU_MIPS32_R3_5
457 select SYS_HAS_CPU_MIPS32_R5
458 select SYS_HAS_CPU_MIPS32_R6
459 select SYS_HAS_CPU_MIPS64_R1
460 select SYS_HAS_CPU_MIPS64_R2
461 select SYS_HAS_CPU_MIPS64_R6
462 select SYS_HAS_CPU_NEVADA
463 select SYS_HAS_CPU_RM7000
464 select SYS_SUPPORTS_32BIT_KERNEL
465 select SYS_SUPPORTS_64BIT_KERNEL
466 select SYS_SUPPORTS_BIG_ENDIAN
467 select SYS_SUPPORTS_HIGHMEM
468 select SYS_SUPPORTS_LITTLE_ENDIAN
469 select SYS_SUPPORTS_MICROMIPS
470 select SYS_SUPPORTS_MIPS_CMP
471 select SYS_SUPPORTS_MIPS_CPS
472 select SYS_SUPPORTS_MIPS16
473 select SYS_SUPPORTS_MULTITHREADING
474 select SYS_SUPPORTS_SMARTMIPS
475 select SYS_SUPPORTS_ZBOOT
476 select USE_OF
477 select ZONE_DMA32 if 64BIT
478 select BUILTIN_DTB
479 select LIBFDT
480 help
481 This enables support for the MIPS Technologies Malta evaluation
482 board.
483
484config MACH_PIC32
485 bool "Microchip PIC32 Family"
486 help
487 This enables support for the Microchip PIC32 family of platforms.
488
489 Microchip PIC32 is a family of general-purpose 32 bit MIPS core
490 microcontrollers.
491
492config MIPS_SEAD3
493 bool "MIPS SEAD3 board"
494 select BOOT_ELF32
495 select BOOT_RAW
496 select BUILTIN_DTB
497 select CEVT_R4K
498 select CSRC_R4K
499 select CLKSRC_MIPS_GIC
500 select COMMON_CLK
501 select CPU_MIPSR2_IRQ_VI
502 select CPU_MIPSR2_IRQ_EI
503 select DMA_NONCOHERENT
504 select IRQ_MIPS_CPU
505 select MIPS_GIC
506 select LIBFDT
507 select MIPS_MSC
508 select SYS_HAS_CPU_MIPS32_R1
509 select SYS_HAS_CPU_MIPS32_R2
510 select SYS_HAS_CPU_MIPS64_R1
511 select SYS_HAS_EARLY_PRINTK
512 select SYS_SUPPORTS_32BIT_KERNEL
513 select SYS_SUPPORTS_64BIT_KERNEL
514 select SYS_SUPPORTS_BIG_ENDIAN
515 select SYS_SUPPORTS_LITTLE_ENDIAN
516 select SYS_SUPPORTS_SMARTMIPS
517 select SYS_SUPPORTS_MICROMIPS
518 select SYS_SUPPORTS_MIPS16
519 select USB_EHCI_BIG_ENDIAN_DESC
520 select USB_EHCI_BIG_ENDIAN_MMIO
521 select USE_OF
522 help
523 This enables support for the MIPS Technologies SEAD3 evaluation
524 board.
525
526config NEC_MARKEINS
527 bool "NEC EMMA2RH Mark-eins board"
528 select SOC_EMMA2RH
529 select HW_HAS_PCI
530 help
531 This enables support for the NEC Electronics Mark-eins boards.
532
533config MACH_VR41XX
534 bool "NEC VR4100 series based machines"
535 select CEVT_R4K
536 select CSRC_R4K
537 select SYS_HAS_CPU_VR41XX
538 select SYS_SUPPORTS_MIPS16
539 select ARCH_REQUIRE_GPIOLIB
540
541config NXP_STB220
542 bool "NXP STB220 board"
543 select SOC_PNX833X
544 help
545 Support for NXP Semiconductors STB220 Development Board.
546
547config NXP_STB225
548 bool "NXP 225 board"
549 select SOC_PNX833X
550 select SOC_PNX8335
551 help
552 Support for NXP Semiconductors STB225 Development Board.
553
554config PMC_MSP
555 bool "PMC-Sierra MSP chipsets"
556 select CEVT_R4K
557 select CSRC_R4K
558 select DMA_NONCOHERENT
559 select SWAP_IO_SPACE
560 select NO_EXCEPT_FILL
561 select BOOT_RAW
562 select SYS_HAS_CPU_MIPS32_R1
563 select SYS_HAS_CPU_MIPS32_R2
564 select SYS_SUPPORTS_32BIT_KERNEL
565 select SYS_SUPPORTS_BIG_ENDIAN
566 select SYS_SUPPORTS_MIPS16
567 select IRQ_MIPS_CPU
568 select SERIAL_8250
569 select SERIAL_8250_CONSOLE
570 select USB_EHCI_BIG_ENDIAN_MMIO
571 select USB_EHCI_BIG_ENDIAN_DESC
572 help
573 This adds support for the PMC-Sierra family of Multi-Service
574 Processor System-On-A-Chips. These parts include a number
575 of integrated peripherals, interfaces and DSPs in addition to
576 a variety of MIPS cores.
577
578config RALINK
579 bool "Ralink based machines"
580 select CEVT_R4K
581 select CSRC_R4K
582 select BOOT_RAW
583 select DMA_NONCOHERENT
584 select IRQ_MIPS_CPU
585 select USE_OF
586 select SYS_HAS_CPU_MIPS32_R1
587 select SYS_HAS_CPU_MIPS32_R2
588 select SYS_SUPPORTS_32BIT_KERNEL
589 select SYS_SUPPORTS_LITTLE_ENDIAN
590 select SYS_SUPPORTS_MIPS16
591 select SYS_HAS_EARLY_PRINTK
592 select CLKDEV_LOOKUP
593 select ARCH_HAS_RESET_CONTROLLER
594 select RESET_CONTROLLER
595
596config SGI_IP22
597 bool "SGI IP22 (Indy/Indigo2)"
598 select FW_ARC
599 select FW_ARC32
600 select BOOT_ELF32
601 select CEVT_R4K
602 select CSRC_R4K
603 select DEFAULT_SGI_PARTITION
604 select DMA_NONCOHERENT
605 select HW_HAS_EISA
606 select I8253
607 select I8259
608 select IP22_CPU_SCACHE
609 select IRQ_MIPS_CPU
610 select GENERIC_ISA_DMA_SUPPORT_BROKEN
611 select SGI_HAS_I8042
612 select SGI_HAS_INDYDOG
613 select SGI_HAS_HAL2
614 select SGI_HAS_SEEQ
615 select SGI_HAS_WD93
616 select SGI_HAS_ZILOG
617 select SWAP_IO_SPACE
618 select SYS_HAS_CPU_R4X00
619 select SYS_HAS_CPU_R5000
620 #
621 # Disable EARLY_PRINTK for now since it leads to overwritten prom
622 # memory during early boot on some machines.
623 #
624 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
625 # for a more details discussion
626 #
627 # select SYS_HAS_EARLY_PRINTK
628 select SYS_SUPPORTS_32BIT_KERNEL
629 select SYS_SUPPORTS_64BIT_KERNEL
630 select SYS_SUPPORTS_BIG_ENDIAN
631 select MIPS_L1_CACHE_SHIFT_7
632 help
633 This are the SGI Indy, Challenge S and Indigo2, as well as certain
634 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
635 that runs on these, say Y here.
636
637config SGI_IP27
638 bool "SGI IP27 (Origin200/2000)"
639 select FW_ARC
640 select FW_ARC64
641 select BOOT_ELF64
642 select DEFAULT_SGI_PARTITION
643 select DMA_COHERENT
644 select SYS_HAS_EARLY_PRINTK
645 select HW_HAS_PCI
646 select NR_CPUS_DEFAULT_64
647 select SYS_HAS_CPU_R10000
648 select SYS_SUPPORTS_64BIT_KERNEL
649 select SYS_SUPPORTS_BIG_ENDIAN
650 select SYS_SUPPORTS_NUMA
651 select SYS_SUPPORTS_SMP
652 select MIPS_L1_CACHE_SHIFT_7
653 help
654 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
655 workstations. To compile a Linux kernel that runs on these, say Y
656 here.
657
658config SGI_IP28
659 bool "SGI IP28 (Indigo2 R10k)"
660 select FW_ARC
661 select FW_ARC64
662 select BOOT_ELF64
663 select CEVT_R4K
664 select CSRC_R4K
665 select DEFAULT_SGI_PARTITION
666 select DMA_NONCOHERENT
667 select GENERIC_ISA_DMA_SUPPORT_BROKEN
668 select IRQ_MIPS_CPU
669 select HW_HAS_EISA
670 select I8253
671 select I8259
672 select SGI_HAS_I8042
673 select SGI_HAS_INDYDOG
674 select SGI_HAS_HAL2
675 select SGI_HAS_SEEQ
676 select SGI_HAS_WD93
677 select SGI_HAS_ZILOG
678 select SWAP_IO_SPACE
679 select SYS_HAS_CPU_R10000
680 #
681 # Disable EARLY_PRINTK for now since it leads to overwritten prom
682 # memory during early boot on some machines.
683 #
684 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
685 # for a more details discussion
686 #
687 # select SYS_HAS_EARLY_PRINTK
688 select SYS_SUPPORTS_64BIT_KERNEL
689 select SYS_SUPPORTS_BIG_ENDIAN
690 select MIPS_L1_CACHE_SHIFT_7
691 help
692 This is the SGI Indigo2 with R10000 processor. To compile a Linux
693 kernel that runs on these, say Y here.
694
695config SGI_IP32
696 bool "SGI IP32 (O2)"
697 select FW_ARC
698 select FW_ARC32
699 select BOOT_ELF32
700 select CEVT_R4K
701 select CSRC_R4K
702 select DMA_NONCOHERENT
703 select HW_HAS_PCI
704 select IRQ_MIPS_CPU
705 select R5000_CPU_SCACHE
706 select RM7000_CPU_SCACHE
707 select SYS_HAS_CPU_R5000
708 select SYS_HAS_CPU_R10000 if BROKEN
709 select SYS_HAS_CPU_RM7000
710 select SYS_HAS_CPU_NEVADA
711 select SYS_SUPPORTS_64BIT_KERNEL
712 select SYS_SUPPORTS_BIG_ENDIAN
713 help
714 If you want this kernel to run on SGI O2 workstation, say Y here.
715
716config SIBYTE_CRHINE
717 bool "Sibyte BCM91120C-CRhine"
718 select BOOT_ELF32
719 select DMA_COHERENT
720 select SIBYTE_BCM1120
721 select SWAP_IO_SPACE
722 select SYS_HAS_CPU_SB1
723 select SYS_SUPPORTS_BIG_ENDIAN
724 select SYS_SUPPORTS_LITTLE_ENDIAN
725
726config SIBYTE_CARMEL
727 bool "Sibyte BCM91120x-Carmel"
728 select BOOT_ELF32
729 select DMA_COHERENT
730 select SIBYTE_BCM1120
731 select SWAP_IO_SPACE
732 select SYS_HAS_CPU_SB1
733 select SYS_SUPPORTS_BIG_ENDIAN
734 select SYS_SUPPORTS_LITTLE_ENDIAN
735
736config SIBYTE_CRHONE
737 bool "Sibyte BCM91125C-CRhone"
738 select BOOT_ELF32
739 select DMA_COHERENT
740 select SIBYTE_BCM1125
741 select SWAP_IO_SPACE
742 select SYS_HAS_CPU_SB1
743 select SYS_SUPPORTS_BIG_ENDIAN
744 select SYS_SUPPORTS_HIGHMEM
745 select SYS_SUPPORTS_LITTLE_ENDIAN
746
747config SIBYTE_RHONE
748 bool "Sibyte BCM91125E-Rhone"
749 select BOOT_ELF32
750 select DMA_COHERENT
751 select SIBYTE_BCM1125H
752 select SWAP_IO_SPACE
753 select SYS_HAS_CPU_SB1
754 select SYS_SUPPORTS_BIG_ENDIAN
755 select SYS_SUPPORTS_LITTLE_ENDIAN
756
757config SIBYTE_SWARM
758 bool "Sibyte BCM91250A-SWARM"
759 select BOOT_ELF32
760 select DMA_COHERENT
761 select HAVE_PATA_PLATFORM
762 select SIBYTE_SB1250
763 select SWAP_IO_SPACE
764 select SYS_HAS_CPU_SB1
765 select SYS_SUPPORTS_BIG_ENDIAN
766 select SYS_SUPPORTS_HIGHMEM
767 select SYS_SUPPORTS_LITTLE_ENDIAN
768 select ZONE_DMA32 if 64BIT
769
770config SIBYTE_LITTLESUR
771 bool "Sibyte BCM91250C2-LittleSur"
772 select BOOT_ELF32
773 select DMA_COHERENT
774 select HAVE_PATA_PLATFORM
775 select SIBYTE_SB1250
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_SENTOSA
783 bool "Sibyte BCM91250E-Sentosa"
784 select BOOT_ELF32
785 select DMA_COHERENT
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_LITTLE_ENDIAN
791
792config SIBYTE_BIGSUR
793 bool "Sibyte BCM91480B-BigSur"
794 select BOOT_ELF32
795 select DMA_COHERENT
796 select NR_CPUS_DEFAULT_4
797 select SIBYTE_BCM1x80
798 select SWAP_IO_SPACE
799 select SYS_HAS_CPU_SB1
800 select SYS_SUPPORTS_BIG_ENDIAN
801 select SYS_SUPPORTS_HIGHMEM
802 select SYS_SUPPORTS_LITTLE_ENDIAN
803 select ZONE_DMA32 if 64BIT
804
805config SNI_RM
806 bool "SNI RM200/300/400"
807 select FW_ARC if CPU_LITTLE_ENDIAN
808 select FW_ARC32 if CPU_LITTLE_ENDIAN
809 select FW_SNIPROM if CPU_BIG_ENDIAN
810 select ARCH_MAY_HAVE_PC_FDC
811 select BOOT_ELF32
812 select CEVT_R4K
813 select CSRC_R4K
814 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
815 select DMA_NONCOHERENT
816 select GENERIC_ISA_DMA
817 select HAVE_PCSPKR_PLATFORM
818 select HW_HAS_EISA
819 select HW_HAS_PCI
820 select IRQ_MIPS_CPU
821 select I8253
822 select I8259
823 select ISA
824 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
825 select SYS_HAS_CPU_R4X00
826 select SYS_HAS_CPU_R5000
827 select SYS_HAS_CPU_R10000
828 select R5000_CPU_SCACHE
829 select SYS_HAS_EARLY_PRINTK
830 select SYS_SUPPORTS_32BIT_KERNEL
831 select SYS_SUPPORTS_64BIT_KERNEL
832 select SYS_SUPPORTS_BIG_ENDIAN
833 select SYS_SUPPORTS_HIGHMEM
834 select SYS_SUPPORTS_LITTLE_ENDIAN
835 help
836 The SNI RM200/300/400 are MIPS-based machines manufactured by
837 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
838 Technology and now in turn merged with Fujitsu. Say Y here to
839 support this machine type.
840
841config MACH_TX39XX
842 bool "Toshiba TX39 series based machines"
843
844config MACH_TX49XX
845 bool "Toshiba TX49 series based machines"
846
847config MIKROTIK_RB532
848 bool "Mikrotik RB532 boards"
849 select CEVT_R4K
850 select CSRC_R4K
851 select DMA_NONCOHERENT
852 select HW_HAS_PCI
853 select IRQ_MIPS_CPU
854 select SYS_HAS_CPU_MIPS32_R1
855 select SYS_SUPPORTS_32BIT_KERNEL
856 select SYS_SUPPORTS_LITTLE_ENDIAN
857 select SWAP_IO_SPACE
858 select BOOT_RAW
859 select ARCH_REQUIRE_GPIOLIB
860 select MIPS_L1_CACHE_SHIFT_4
861 help
862 Support the Mikrotik(tm) RouterBoard 532 series,
863 based on the IDT RC32434 SoC.
864
865config CAVIUM_OCTEON_SOC
866 bool "Cavium Networks Octeon SoC based boards"
867 select CEVT_R4K
868 select ARCH_PHYS_ADDR_T_64BIT
869 select DMA_COHERENT
870 select SYS_SUPPORTS_64BIT_KERNEL
871 select SYS_SUPPORTS_BIG_ENDIAN
872 select EDAC_SUPPORT
873 select EDAC_ATOMIC_SCRUB
874 select SYS_SUPPORTS_LITTLE_ENDIAN
875 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
876 select SYS_HAS_EARLY_PRINTK
877 select SYS_HAS_CPU_CAVIUM_OCTEON
878 select SWAP_IO_SPACE
879 select HW_HAS_PCI
880 select ZONE_DMA32
881 select HOLES_IN_ZONE
882 select ARCH_REQUIRE_GPIOLIB
883 select LIBFDT
884 select USE_OF
885 select ARCH_SPARSEMEM_ENABLE
886 select SYS_SUPPORTS_SMP
887 select NR_CPUS_DEFAULT_16
888 select BUILTIN_DTB
889 select MTD_COMPLEX_MAPPINGS
890 help
891 This option supports all of the Octeon reference boards from Cavium
892 Networks. It builds a kernel that dynamically determines the Octeon
893 CPU type and supports all known board reference implementations.
894 Some of the supported boards are:
895 EBT3000
896 EBH3000
897 EBH3100
898 Thunder
899 Kodama
900 Hikari
901 Say Y here for most Octeon reference boards.
902
903config NLM_XLR_BOARD
904 bool "Netlogic XLR/XLS based systems"
905 select BOOT_ELF32
906 select NLM_COMMON
907 select SYS_HAS_CPU_XLR
908 select SYS_SUPPORTS_SMP
909 select HW_HAS_PCI
910 select SWAP_IO_SPACE
911 select SYS_SUPPORTS_32BIT_KERNEL
912 select SYS_SUPPORTS_64BIT_KERNEL
913 select ARCH_PHYS_ADDR_T_64BIT
914 select SYS_SUPPORTS_BIG_ENDIAN
915 select SYS_SUPPORTS_HIGHMEM
916 select DMA_COHERENT
917 select NR_CPUS_DEFAULT_32
918 select CEVT_R4K
919 select CSRC_R4K
920 select IRQ_MIPS_CPU
921 select ZONE_DMA32 if 64BIT
922 select SYNC_R4K
923 select SYS_HAS_EARLY_PRINTK
924 select SYS_SUPPORTS_ZBOOT
925 select SYS_SUPPORTS_ZBOOT_UART16550
926 help
927 Support for systems based on Netlogic XLR and XLS processors.
928 Say Y here if you have a XLR or XLS based board.
929
930config NLM_XLP_BOARD
931 bool "Netlogic XLP based systems"
932 select BOOT_ELF32
933 select NLM_COMMON
934 select SYS_HAS_CPU_XLP
935 select SYS_SUPPORTS_SMP
936 select HW_HAS_PCI
937 select SYS_SUPPORTS_32BIT_KERNEL
938 select SYS_SUPPORTS_64BIT_KERNEL
939 select ARCH_PHYS_ADDR_T_64BIT
940 select ARCH_REQUIRE_GPIOLIB
941 select SYS_SUPPORTS_BIG_ENDIAN
942 select SYS_SUPPORTS_LITTLE_ENDIAN
943 select SYS_SUPPORTS_HIGHMEM
944 select DMA_COHERENT
945 select NR_CPUS_DEFAULT_32
946 select CEVT_R4K
947 select CSRC_R4K
948 select IRQ_MIPS_CPU
949 select ZONE_DMA32 if 64BIT
950 select SYNC_R4K
951 select SYS_HAS_EARLY_PRINTK
952 select USE_OF
953 select SYS_SUPPORTS_ZBOOT
954 select SYS_SUPPORTS_ZBOOT_UART16550
955 help
956 This board is based on Netlogic XLP Processor.
957 Say Y here if you have a XLP based board.
958
959config MIPS_PARAVIRT
960 bool "Para-Virtualized guest system"
961 select CEVT_R4K
962 select CSRC_R4K
963 select DMA_COHERENT
964 select SYS_SUPPORTS_64BIT_KERNEL
965 select SYS_SUPPORTS_32BIT_KERNEL
966 select SYS_SUPPORTS_BIG_ENDIAN
967 select SYS_SUPPORTS_SMP
968 select NR_CPUS_DEFAULT_4
969 select SYS_HAS_EARLY_PRINTK
970 select SYS_HAS_CPU_MIPS32_R2
971 select SYS_HAS_CPU_MIPS64_R2
972 select SYS_HAS_CPU_CAVIUM_OCTEON
973 select HW_HAS_PCI
974 select SWAP_IO_SPACE
975 help
976 This option supports guest running under ????
977
978endchoice
979
980source "arch/mips/alchemy/Kconfig"
981source "arch/mips/ath25/Kconfig"
982source "arch/mips/ath79/Kconfig"
983source "arch/mips/bcm47xx/Kconfig"
984source "arch/mips/bcm63xx/Kconfig"
985source "arch/mips/bmips/Kconfig"
986source "arch/mips/jazz/Kconfig"
987source "arch/mips/jz4740/Kconfig"
988source "arch/mips/lantiq/Kconfig"
989source "arch/mips/lasat/Kconfig"
990source "arch/mips/pic32/Kconfig"
991source "arch/mips/pistachio/Kconfig"
992source "arch/mips/pmcs-msp71xx/Kconfig"
993source "arch/mips/ralink/Kconfig"
994source "arch/mips/sgi-ip27/Kconfig"
995source "arch/mips/sibyte/Kconfig"
996source "arch/mips/txx9/Kconfig"
997source "arch/mips/vr41xx/Kconfig"
998source "arch/mips/cavium-octeon/Kconfig"
999source "arch/mips/loongson32/Kconfig"
1000source "arch/mips/loongson64/Kconfig"
1001source "arch/mips/netlogic/Kconfig"
1002source "arch/mips/paravirt/Kconfig"
1003source "arch/mips/xilfpga/Kconfig"
1004
1005endmenu
1006
1007config RWSEM_GENERIC_SPINLOCK
1008 bool
1009 default y
1010
1011config RWSEM_XCHGADD_ALGORITHM
1012 bool
1013
1014config ARCH_HAS_ILOG2_U32
1015 bool
1016 default n
1017
1018config ARCH_HAS_ILOG2_U64
1019 bool
1020 default n
1021
1022config GENERIC_HWEIGHT
1023 bool
1024 default y
1025
1026config GENERIC_CALIBRATE_DELAY
1027 bool
1028 default y
1029
1030config SCHED_OMIT_FRAME_POINTER
1031 bool
1032 default y
1033
1034#
1035# Select some configuration options automatically based on user selections.
1036#
1037config FW_ARC
1038 bool
1039
1040config ARCH_MAY_HAVE_PC_FDC
1041 bool
1042
1043config BOOT_RAW
1044 bool
1045
1046config CEVT_BCM1480
1047 bool
1048
1049config CEVT_DS1287
1050 bool
1051
1052config CEVT_GT641XX
1053 bool
1054
1055config CEVT_R4K
1056 bool
1057
1058config CEVT_SB1250
1059 bool
1060
1061config CEVT_TXX9
1062 bool
1063
1064config CSRC_BCM1480
1065 bool
1066
1067config CSRC_IOASIC
1068 bool
1069
1070config CSRC_R4K
1071 bool
1072
1073config CSRC_SB1250
1074 bool
1075
1076config MIPS_CLOCK_VSYSCALL
1077 def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1078
1079config GPIO_TXX9
1080 select ARCH_REQUIRE_GPIOLIB
1081 bool
1082
1083config FW_CFE
1084 bool
1085
1086config ARCH_DMA_ADDR_T_64BIT
1087 def_bool (HIGHMEM && ARCH_PHYS_ADDR_T_64BIT) || 64BIT
1088
1089config ARCH_SUPPORTS_UPROBES
1090 bool
1091
1092config DMA_MAYBE_COHERENT
1093 select DMA_NONCOHERENT
1094 bool
1095
1096config DMA_COHERENT
1097 bool
1098
1099config DMA_NONCOHERENT
1100 bool
1101 select NEED_DMA_MAP_STATE
1102
1103config NEED_DMA_MAP_STATE
1104 bool
1105
1106config SYS_HAS_EARLY_PRINTK
1107 bool
1108
1109config HOTPLUG_CPU
1110 bool "Support for hot-pluggable CPUs"
1111 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
1112 help
1113 Say Y here to allow turning CPUs off and on. CPUs can be
1114 controlled through /sys/devices/system/cpu.
1115 (Note: power management support will enable this option
1116 automatically on SMP systems. )
1117 Say N if you want to disable CPU hotplug.
1118
1119config SYS_SUPPORTS_HOTPLUG_CPU
1120 bool
1121
1122config MIPS_BONITO64
1123 bool
1124
1125config MIPS_MSC
1126 bool
1127
1128config MIPS_NILE4
1129 bool
1130
1131config SYNC_R4K
1132 bool
1133
1134config MIPS_MACHINE
1135 def_bool n
1136
1137config NO_IOPORT_MAP
1138 def_bool n
1139
1140config GENERIC_CSUM
1141 bool
1142
1143config GENERIC_ISA_DMA
1144 bool
1145 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1146 select ISA_DMA_API
1147
1148config GENERIC_ISA_DMA_SUPPORT_BROKEN
1149 bool
1150 select GENERIC_ISA_DMA
1151
1152config ISA_DMA_API
1153 bool
1154
1155config HOLES_IN_ZONE
1156 bool
1157
1158#
1159# Endianness selection. Sufficiently obscure so many users don't know what to
1160# answer,so we try hard to limit the available choices. Also the use of a
1161# choice statement should be more obvious to the user.
1162#
1163choice
1164 prompt "Endianness selection"
1165 help
1166 Some MIPS machines can be configured for either little or big endian
1167 byte order. These modes require different kernels and a different
1168 Linux distribution. In general there is one preferred byteorder for a
1169 particular system but some systems are just as commonly used in the
1170 one or the other endianness.
1171
1172config CPU_BIG_ENDIAN
1173 bool "Big endian"
1174 depends on SYS_SUPPORTS_BIG_ENDIAN
1175
1176config CPU_LITTLE_ENDIAN
1177 bool "Little endian"
1178 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1179
1180endchoice
1181
1182config EXPORT_UASM
1183 bool
1184
1185config SYS_SUPPORTS_APM_EMULATION
1186 bool
1187
1188config SYS_SUPPORTS_BIG_ENDIAN
1189 bool
1190
1191config SYS_SUPPORTS_LITTLE_ENDIAN
1192 bool
1193
1194config SYS_SUPPORTS_HUGETLBFS
1195 bool
1196 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1197 default y
1198
1199config MIPS_HUGE_TLB_SUPPORT
1200 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1201
1202config IRQ_CPU_RM7K
1203 bool
1204
1205config IRQ_MSP_SLP
1206 bool
1207
1208config IRQ_MSP_CIC
1209 bool
1210
1211config IRQ_TXX9
1212 bool
1213
1214config IRQ_GT641XX
1215 bool
1216
1217config PCI_GT64XXX_PCI0
1218 bool
1219
1220config NO_EXCEPT_FILL
1221 bool
1222
1223config SOC_EMMA2RH
1224 bool
1225 select CEVT_R4K
1226 select CSRC_R4K
1227 select DMA_NONCOHERENT
1228 select IRQ_MIPS_CPU
1229 select SWAP_IO_SPACE
1230 select SYS_HAS_CPU_R5500
1231 select SYS_SUPPORTS_32BIT_KERNEL
1232 select SYS_SUPPORTS_64BIT_KERNEL
1233 select SYS_SUPPORTS_BIG_ENDIAN
1234
1235config SOC_PNX833X
1236 bool
1237 select CEVT_R4K
1238 select CSRC_R4K
1239 select IRQ_MIPS_CPU
1240 select DMA_NONCOHERENT
1241 select SYS_HAS_CPU_MIPS32_R2
1242 select SYS_SUPPORTS_32BIT_KERNEL
1243 select SYS_SUPPORTS_LITTLE_ENDIAN
1244 select SYS_SUPPORTS_BIG_ENDIAN
1245 select SYS_SUPPORTS_MIPS16
1246 select CPU_MIPSR2_IRQ_VI
1247
1248config SOC_PNX8335
1249 bool
1250 select SOC_PNX833X
1251
1252config MIPS_SPRAM
1253 bool
1254
1255config SWAP_IO_SPACE
1256 bool
1257
1258config SGI_HAS_INDYDOG
1259 bool
1260
1261config SGI_HAS_HAL2
1262 bool
1263
1264config SGI_HAS_SEEQ
1265 bool
1266
1267config SGI_HAS_WD93
1268 bool
1269
1270config SGI_HAS_ZILOG
1271 bool
1272
1273config SGI_HAS_I8042
1274 bool
1275
1276config DEFAULT_SGI_PARTITION
1277 bool
1278
1279config FW_ARC32
1280 bool
1281
1282config FW_SNIPROM
1283 bool
1284
1285config BOOT_ELF32
1286 bool
1287
1288config MIPS_L1_CACHE_SHIFT_4
1289 bool
1290
1291config MIPS_L1_CACHE_SHIFT_5
1292 bool
1293
1294config MIPS_L1_CACHE_SHIFT_6
1295 bool
1296
1297config MIPS_L1_CACHE_SHIFT_7
1298 bool
1299
1300config MIPS_L1_CACHE_SHIFT
1301 int
1302 default "7" if MIPS_L1_CACHE_SHIFT_7
1303 default "6" if MIPS_L1_CACHE_SHIFT_6
1304 default "5" if MIPS_L1_CACHE_SHIFT_5
1305 default "4" if MIPS_L1_CACHE_SHIFT_4
1306 default "5"
1307
1308config HAVE_STD_PC_SERIAL_PORT
1309 bool
1310
1311config ARC_CONSOLE
1312 bool "ARC console support"
1313 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1314
1315config ARC_MEMORY
1316 bool
1317 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1318 default y
1319
1320config ARC_PROMLIB
1321 bool
1322 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1323 default y
1324
1325config FW_ARC64
1326 bool
1327
1328config BOOT_ELF64
1329 bool
1330
1331menu "CPU selection"
1332
1333choice
1334 prompt "CPU type"
1335 default CPU_R4X00
1336
1337config CPU_LOONGSON3
1338 bool "Loongson 3 CPU"
1339 depends on SYS_HAS_CPU_LOONGSON3
1340 select CPU_SUPPORTS_64BIT_KERNEL
1341 select CPU_SUPPORTS_HIGHMEM
1342 select CPU_SUPPORTS_HUGEPAGES
1343 select WEAK_ORDERING
1344 select WEAK_REORDERING_BEYOND_LLSC
1345 select ARCH_REQUIRE_GPIOLIB
1346 help
1347 The Loongson 3 processor implements the MIPS64R2 instruction
1348 set with many extensions.
1349
1350config CPU_LOONGSON2E
1351 bool "Loongson 2E"
1352 depends on SYS_HAS_CPU_LOONGSON2E
1353 select CPU_LOONGSON2
1354 help
1355 The Loongson 2E processor implements the MIPS III instruction set
1356 with many extensions.
1357
1358 It has an internal FPGA northbridge, which is compatible to
1359 bonito64.
1360
1361config CPU_LOONGSON2F
1362 bool "Loongson 2F"
1363 depends on SYS_HAS_CPU_LOONGSON2F
1364 select CPU_LOONGSON2
1365 select ARCH_REQUIRE_GPIOLIB
1366 help
1367 The Loongson 2F processor implements the MIPS III instruction set
1368 with many extensions.
1369
1370 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1371 have a similar programming interface with FPGA northbridge used in
1372 Loongson2E.
1373
1374config CPU_LOONGSON1B
1375 bool "Loongson 1B"
1376 depends on SYS_HAS_CPU_LOONGSON1B
1377 select CPU_LOONGSON1
1378 help
1379 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1380 release 2 instruction set.
1381
1382config CPU_MIPS32_R1
1383 bool "MIPS32 Release 1"
1384 depends on SYS_HAS_CPU_MIPS32_R1
1385 select CPU_HAS_PREFETCH
1386 select CPU_SUPPORTS_32BIT_KERNEL
1387 select CPU_SUPPORTS_HIGHMEM
1388 help
1389 Choose this option to build a kernel for release 1 or later of the
1390 MIPS32 architecture. Most modern embedded systems with a 32-bit
1391 MIPS processor are based on a MIPS32 processor. If you know the
1392 specific type of processor in your system, choose those that one
1393 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1394 Release 2 of the MIPS32 architecture is available since several
1395 years so chances are you even have a MIPS32 Release 2 processor
1396 in which case you should choose CPU_MIPS32_R2 instead for better
1397 performance.
1398
1399config CPU_MIPS32_R2
1400 bool "MIPS32 Release 2"
1401 depends on SYS_HAS_CPU_MIPS32_R2
1402 select CPU_HAS_PREFETCH
1403 select CPU_SUPPORTS_32BIT_KERNEL
1404 select CPU_SUPPORTS_HIGHMEM
1405 select CPU_SUPPORTS_MSA
1406 select HAVE_KVM
1407 help
1408 Choose this option to build a kernel for release 2 or later of the
1409 MIPS32 architecture. Most modern embedded systems with a 32-bit
1410 MIPS processor are based on a MIPS32 processor. If you know the
1411 specific type of processor in your system, choose those that one
1412 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1413
1414config CPU_MIPS32_R6
1415 bool "MIPS32 Release 6"
1416 depends on SYS_HAS_CPU_MIPS32_R6
1417 select CPU_HAS_PREFETCH
1418 select CPU_SUPPORTS_32BIT_KERNEL
1419 select CPU_SUPPORTS_HIGHMEM
1420 select CPU_SUPPORTS_MSA
1421 select GENERIC_CSUM
1422 select HAVE_KVM
1423 select MIPS_O32_FP64_SUPPORT
1424 help
1425 Choose this option to build a kernel for release 6 or later of the
1426 MIPS32 architecture. New MIPS processors, starting with the Warrior
1427 family, are based on a MIPS32r6 processor. If you own an older
1428 processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1429
1430config CPU_MIPS64_R1
1431 bool "MIPS64 Release 1"
1432 depends on SYS_HAS_CPU_MIPS64_R1
1433 select CPU_HAS_PREFETCH
1434 select CPU_SUPPORTS_32BIT_KERNEL
1435 select CPU_SUPPORTS_64BIT_KERNEL
1436 select CPU_SUPPORTS_HIGHMEM
1437 select CPU_SUPPORTS_HUGEPAGES
1438 help
1439 Choose this option to build a kernel for release 1 or later of the
1440 MIPS64 architecture. Many modern embedded systems with a 64-bit
1441 MIPS processor are based on a MIPS64 processor. If you know the
1442 specific type of processor in your system, choose those that one
1443 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1444 Release 2 of the MIPS64 architecture is available since several
1445 years so chances are you even have a MIPS64 Release 2 processor
1446 in which case you should choose CPU_MIPS64_R2 instead for better
1447 performance.
1448
1449config CPU_MIPS64_R2
1450 bool "MIPS64 Release 2"
1451 depends on SYS_HAS_CPU_MIPS64_R2
1452 select CPU_HAS_PREFETCH
1453 select CPU_SUPPORTS_32BIT_KERNEL
1454 select CPU_SUPPORTS_64BIT_KERNEL
1455 select CPU_SUPPORTS_HIGHMEM
1456 select CPU_SUPPORTS_HUGEPAGES
1457 select CPU_SUPPORTS_MSA
1458 help
1459 Choose this option to build a kernel for release 2 or later of the
1460 MIPS64 architecture. Many modern embedded systems with a 64-bit
1461 MIPS processor are based on a MIPS64 processor. If you know the
1462 specific type of processor in your system, choose those that one
1463 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1464
1465config CPU_MIPS64_R6
1466 bool "MIPS64 Release 6"
1467 depends on SYS_HAS_CPU_MIPS64_R6
1468 select CPU_HAS_PREFETCH
1469 select CPU_SUPPORTS_32BIT_KERNEL
1470 select CPU_SUPPORTS_64BIT_KERNEL
1471 select CPU_SUPPORTS_HIGHMEM
1472 select CPU_SUPPORTS_MSA
1473 select GENERIC_CSUM
1474 select MIPS_O32_FP64_SUPPORT if MIPS32_O32
1475 help
1476 Choose this option to build a kernel for release 6 or later of the
1477 MIPS64 architecture. New MIPS processors, starting with the Warrior
1478 family, are based on a MIPS64r6 processor. If you own an older
1479 processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1480
1481config CPU_R3000
1482 bool "R3000"
1483 depends on SYS_HAS_CPU_R3000
1484 select CPU_HAS_WB
1485 select CPU_SUPPORTS_32BIT_KERNEL
1486 select CPU_SUPPORTS_HIGHMEM
1487 help
1488 Please make sure to pick the right CPU type. Linux/MIPS is not
1489 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1490 *not* work on R4000 machines and vice versa. However, since most
1491 of the supported machines have an R4000 (or similar) CPU, R4x00
1492 might be a safe bet. If the resulting kernel does not work,
1493 try to recompile with R3000.
1494
1495config CPU_TX39XX
1496 bool "R39XX"
1497 depends on SYS_HAS_CPU_TX39XX
1498 select CPU_SUPPORTS_32BIT_KERNEL
1499
1500config CPU_VR41XX
1501 bool "R41xx"
1502 depends on SYS_HAS_CPU_VR41XX
1503 select CPU_SUPPORTS_32BIT_KERNEL
1504 select CPU_SUPPORTS_64BIT_KERNEL
1505 help
1506 The options selects support for the NEC VR4100 series of processors.
1507 Only choose this option if you have one of these processors as a
1508 kernel built with this option will not run on any other type of
1509 processor or vice versa.
1510
1511config CPU_R4300
1512 bool "R4300"
1513 depends on SYS_HAS_CPU_R4300
1514 select CPU_SUPPORTS_32BIT_KERNEL
1515 select CPU_SUPPORTS_64BIT_KERNEL
1516 help
1517 MIPS Technologies R4300-series processors.
1518
1519config CPU_R4X00
1520 bool "R4x00"
1521 depends on SYS_HAS_CPU_R4X00
1522 select CPU_SUPPORTS_32BIT_KERNEL
1523 select CPU_SUPPORTS_64BIT_KERNEL
1524 select CPU_SUPPORTS_HUGEPAGES
1525 help
1526 MIPS Technologies R4000-series processors other than 4300, including
1527 the R4000, R4400, R4600, and 4700.
1528
1529config CPU_TX49XX
1530 bool "R49XX"
1531 depends on SYS_HAS_CPU_TX49XX
1532 select CPU_HAS_PREFETCH
1533 select CPU_SUPPORTS_32BIT_KERNEL
1534 select CPU_SUPPORTS_64BIT_KERNEL
1535 select CPU_SUPPORTS_HUGEPAGES
1536
1537config CPU_R5000
1538 bool "R5000"
1539 depends on SYS_HAS_CPU_R5000
1540 select CPU_SUPPORTS_32BIT_KERNEL
1541 select CPU_SUPPORTS_64BIT_KERNEL
1542 select CPU_SUPPORTS_HUGEPAGES
1543 help
1544 MIPS Technologies R5000-series processors other than the Nevada.
1545
1546config CPU_R5432
1547 bool "R5432"
1548 depends on SYS_HAS_CPU_R5432
1549 select CPU_SUPPORTS_32BIT_KERNEL
1550 select CPU_SUPPORTS_64BIT_KERNEL
1551 select CPU_SUPPORTS_HUGEPAGES
1552
1553config CPU_R5500
1554 bool "R5500"
1555 depends on SYS_HAS_CPU_R5500
1556 select CPU_SUPPORTS_32BIT_KERNEL
1557 select CPU_SUPPORTS_64BIT_KERNEL
1558 select CPU_SUPPORTS_HUGEPAGES
1559 help
1560 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1561 instruction set.
1562
1563config CPU_R6000
1564 bool "R6000"
1565 depends on SYS_HAS_CPU_R6000
1566 select CPU_SUPPORTS_32BIT_KERNEL
1567 help
1568 MIPS Technologies R6000 and R6000A series processors. Note these
1569 processors are extremely rare and the support for them is incomplete.
1570
1571config CPU_NEVADA
1572 bool "RM52xx"
1573 depends on SYS_HAS_CPU_NEVADA
1574 select CPU_SUPPORTS_32BIT_KERNEL
1575 select CPU_SUPPORTS_64BIT_KERNEL
1576 select CPU_SUPPORTS_HUGEPAGES
1577 help
1578 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1579
1580config CPU_R8000
1581 bool "R8000"
1582 depends on SYS_HAS_CPU_R8000
1583 select CPU_HAS_PREFETCH
1584 select CPU_SUPPORTS_64BIT_KERNEL
1585 help
1586 MIPS Technologies R8000 processors. Note these processors are
1587 uncommon and the support for them is incomplete.
1588
1589config CPU_R10000
1590 bool "R10000"
1591 depends on SYS_HAS_CPU_R10000
1592 select CPU_HAS_PREFETCH
1593 select CPU_SUPPORTS_32BIT_KERNEL
1594 select CPU_SUPPORTS_64BIT_KERNEL
1595 select CPU_SUPPORTS_HIGHMEM
1596 select CPU_SUPPORTS_HUGEPAGES
1597 help
1598 MIPS Technologies R10000-series processors.
1599
1600config CPU_RM7000
1601 bool "RM7000"
1602 depends on SYS_HAS_CPU_RM7000
1603 select CPU_HAS_PREFETCH
1604 select CPU_SUPPORTS_32BIT_KERNEL
1605 select CPU_SUPPORTS_64BIT_KERNEL
1606 select CPU_SUPPORTS_HIGHMEM
1607 select CPU_SUPPORTS_HUGEPAGES
1608
1609config CPU_SB1
1610 bool "SB1"
1611 depends on SYS_HAS_CPU_SB1
1612 select CPU_SUPPORTS_32BIT_KERNEL
1613 select CPU_SUPPORTS_64BIT_KERNEL
1614 select CPU_SUPPORTS_HIGHMEM
1615 select CPU_SUPPORTS_HUGEPAGES
1616 select WEAK_ORDERING
1617
1618config CPU_CAVIUM_OCTEON
1619 bool "Cavium Octeon processor"
1620 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1621 select CPU_HAS_PREFETCH
1622 select CPU_SUPPORTS_64BIT_KERNEL
1623 select WEAK_ORDERING
1624 select CPU_SUPPORTS_HIGHMEM
1625 select CPU_SUPPORTS_HUGEPAGES
1626 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1627 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1628 select MIPS_L1_CACHE_SHIFT_7
1629 help
1630 The Cavium Octeon processor is a highly integrated chip containing
1631 many ethernet hardware widgets for networking tasks. The processor
1632 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1633 Full details can be found at http://www.caviumnetworks.com.
1634
1635config CPU_BMIPS
1636 bool "Broadcom BMIPS"
1637 depends on SYS_HAS_CPU_BMIPS
1638 select CPU_MIPS32
1639 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1640 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1641 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1642 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1643 select CPU_SUPPORTS_32BIT_KERNEL
1644 select DMA_NONCOHERENT
1645 select IRQ_MIPS_CPU
1646 select SWAP_IO_SPACE
1647 select WEAK_ORDERING
1648 select CPU_SUPPORTS_HIGHMEM
1649 select CPU_HAS_PREFETCH
1650 help
1651 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1652
1653config CPU_XLR
1654 bool "Netlogic XLR SoC"
1655 depends on SYS_HAS_CPU_XLR
1656 select CPU_SUPPORTS_32BIT_KERNEL
1657 select CPU_SUPPORTS_64BIT_KERNEL
1658 select CPU_SUPPORTS_HIGHMEM
1659 select CPU_SUPPORTS_HUGEPAGES
1660 select WEAK_ORDERING
1661 select WEAK_REORDERING_BEYOND_LLSC
1662 help
1663 Netlogic Microsystems XLR/XLS processors.
1664
1665config CPU_XLP
1666 bool "Netlogic XLP SoC"
1667 depends on SYS_HAS_CPU_XLP
1668 select CPU_SUPPORTS_32BIT_KERNEL
1669 select CPU_SUPPORTS_64BIT_KERNEL
1670 select CPU_SUPPORTS_HIGHMEM
1671 select WEAK_ORDERING
1672 select WEAK_REORDERING_BEYOND_LLSC
1673 select CPU_HAS_PREFETCH
1674 select CPU_MIPSR2
1675 select CPU_SUPPORTS_HUGEPAGES
1676 help
1677 Netlogic Microsystems XLP processors.
1678endchoice
1679
1680config CPU_MIPS32_3_5_FEATURES
1681 bool "MIPS32 Release 3.5 Features"
1682 depends on SYS_HAS_CPU_MIPS32_R3_5
1683 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1684 help
1685 Choose this option to build a kernel for release 2 or later of the
1686 MIPS32 architecture including features from the 3.5 release such as
1687 support for Enhanced Virtual Addressing (EVA).
1688
1689config CPU_MIPS32_3_5_EVA
1690 bool "Enhanced Virtual Addressing (EVA)"
1691 depends on CPU_MIPS32_3_5_FEATURES
1692 select EVA
1693 default y
1694 help
1695 Choose this option if you want to enable the Enhanced Virtual
1696 Addressing (EVA) on your MIPS32 core (such as proAptiv).
1697 One of its primary benefits is an increase in the maximum size
1698 of lowmem (up to 3GB). If unsure, say 'N' here.
1699
1700config CPU_MIPS32_R5_FEATURES
1701 bool "MIPS32 Release 5 Features"
1702 depends on SYS_HAS_CPU_MIPS32_R5
1703 depends on CPU_MIPS32_R2
1704 help
1705 Choose this option to build a kernel for release 2 or later of the
1706 MIPS32 architecture including features from release 5 such as
1707 support for Extended Physical Addressing (XPA).
1708
1709config CPU_MIPS32_R5_XPA
1710 bool "Extended Physical Addressing (XPA)"
1711 depends on CPU_MIPS32_R5_FEATURES
1712 depends on !EVA
1713 depends on !PAGE_SIZE_4KB
1714 depends on SYS_SUPPORTS_HIGHMEM
1715 select XPA
1716 select HIGHMEM
1717 select ARCH_PHYS_ADDR_T_64BIT
1718 default n
1719 help
1720 Choose this option if you want to enable the Extended Physical
1721 Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1722 benefit is to increase physical addressing equal to or greater
1723 than 40 bits. Note that this has the side effect of turning on
1724 64-bit addressing which in turn makes the PTEs 64-bit in size.
1725 If unsure, say 'N' here.
1726
1727if CPU_LOONGSON2F
1728config CPU_NOP_WORKAROUNDS
1729 bool
1730
1731config CPU_JUMP_WORKAROUNDS
1732 bool
1733
1734config CPU_LOONGSON2F_WORKAROUNDS
1735 bool "Loongson 2F Workarounds"
1736 default y
1737 select CPU_NOP_WORKAROUNDS
1738 select CPU_JUMP_WORKAROUNDS
1739 help
1740 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1741 require workarounds. Without workarounds the system may hang
1742 unexpectedly. For more information please refer to the gas
1743 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1744
1745 Loongson 2F03 and later have fixed these issues and no workarounds
1746 are needed. The workarounds have no significant side effect on them
1747 but may decrease the performance of the system so this option should
1748 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1749 systems.
1750
1751 If unsure, please say Y.
1752endif # CPU_LOONGSON2F
1753
1754config SYS_SUPPORTS_ZBOOT
1755 bool
1756 select HAVE_KERNEL_GZIP
1757 select HAVE_KERNEL_BZIP2
1758 select HAVE_KERNEL_LZ4
1759 select HAVE_KERNEL_LZMA
1760 select HAVE_KERNEL_LZO
1761 select HAVE_KERNEL_XZ
1762
1763config SYS_SUPPORTS_ZBOOT_UART16550
1764 bool
1765 select SYS_SUPPORTS_ZBOOT
1766
1767config SYS_SUPPORTS_ZBOOT_UART_PROM
1768 bool
1769 select SYS_SUPPORTS_ZBOOT
1770
1771config CPU_LOONGSON2
1772 bool
1773 select CPU_SUPPORTS_32BIT_KERNEL
1774 select CPU_SUPPORTS_64BIT_KERNEL
1775 select CPU_SUPPORTS_HIGHMEM
1776 select CPU_SUPPORTS_HUGEPAGES
1777
1778config CPU_LOONGSON1
1779 bool
1780 select CPU_MIPS32
1781 select CPU_MIPSR2
1782 select CPU_HAS_PREFETCH
1783 select CPU_SUPPORTS_32BIT_KERNEL
1784 select CPU_SUPPORTS_HIGHMEM
1785 select CPU_SUPPORTS_CPUFREQ
1786
1787config CPU_BMIPS32_3300
1788 select SMP_UP if SMP
1789 bool
1790
1791config CPU_BMIPS4350
1792 bool
1793 select SYS_SUPPORTS_SMP
1794 select SYS_SUPPORTS_HOTPLUG_CPU
1795
1796config CPU_BMIPS4380
1797 bool
1798 select MIPS_L1_CACHE_SHIFT_6
1799 select SYS_SUPPORTS_SMP
1800 select SYS_SUPPORTS_HOTPLUG_CPU
1801
1802config CPU_BMIPS5000
1803 bool
1804 select MIPS_CPU_SCACHE
1805 select MIPS_L1_CACHE_SHIFT_7
1806 select SYS_SUPPORTS_SMP
1807 select SYS_SUPPORTS_HOTPLUG_CPU
1808
1809config SYS_HAS_CPU_LOONGSON3
1810 bool
1811 select CPU_SUPPORTS_CPUFREQ
1812
1813config SYS_HAS_CPU_LOONGSON2E
1814 bool
1815
1816config SYS_HAS_CPU_LOONGSON2F
1817 bool
1818 select CPU_SUPPORTS_CPUFREQ
1819 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1820 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1821
1822config SYS_HAS_CPU_LOONGSON1B
1823 bool
1824
1825config SYS_HAS_CPU_MIPS32_R1
1826 bool
1827
1828config SYS_HAS_CPU_MIPS32_R2
1829 bool
1830
1831config SYS_HAS_CPU_MIPS32_R3_5
1832 bool
1833
1834config SYS_HAS_CPU_MIPS32_R5
1835 bool
1836
1837config SYS_HAS_CPU_MIPS32_R6
1838 bool
1839
1840config SYS_HAS_CPU_MIPS64_R1
1841 bool
1842
1843config SYS_HAS_CPU_MIPS64_R2
1844 bool
1845
1846config SYS_HAS_CPU_MIPS64_R6
1847 bool
1848
1849config SYS_HAS_CPU_R3000
1850 bool
1851
1852config SYS_HAS_CPU_TX39XX
1853 bool
1854
1855config SYS_HAS_CPU_VR41XX
1856 bool
1857
1858config SYS_HAS_CPU_R4300
1859 bool
1860
1861config SYS_HAS_CPU_R4X00
1862 bool
1863
1864config SYS_HAS_CPU_TX49XX
1865 bool
1866
1867config SYS_HAS_CPU_R5000
1868 bool
1869
1870config SYS_HAS_CPU_R5432
1871 bool
1872
1873config SYS_HAS_CPU_R5500
1874 bool
1875
1876config SYS_HAS_CPU_R6000
1877 bool
1878
1879config SYS_HAS_CPU_NEVADA
1880 bool
1881
1882config SYS_HAS_CPU_R8000
1883 bool
1884
1885config SYS_HAS_CPU_R10000
1886 bool
1887
1888config SYS_HAS_CPU_RM7000
1889 bool
1890
1891config SYS_HAS_CPU_SB1
1892 bool
1893
1894config SYS_HAS_CPU_CAVIUM_OCTEON
1895 bool
1896
1897config SYS_HAS_CPU_BMIPS
1898 bool
1899
1900config SYS_HAS_CPU_BMIPS32_3300
1901 bool
1902 select SYS_HAS_CPU_BMIPS
1903
1904config SYS_HAS_CPU_BMIPS4350
1905 bool
1906 select SYS_HAS_CPU_BMIPS
1907
1908config SYS_HAS_CPU_BMIPS4380
1909 bool
1910 select SYS_HAS_CPU_BMIPS
1911
1912config SYS_HAS_CPU_BMIPS5000
1913 bool
1914 select SYS_HAS_CPU_BMIPS
1915
1916config SYS_HAS_CPU_XLR
1917 bool
1918
1919config SYS_HAS_CPU_XLP
1920 bool
1921
1922config MIPS_MALTA_PM
1923 depends on MIPS_MALTA
1924 depends on PCI
1925 bool
1926 default y
1927
1928#
1929# CPU may reorder R->R, R->W, W->R, W->W
1930# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1931#
1932config WEAK_ORDERING
1933 bool
1934
1935#
1936# CPU may reorder reads and writes beyond LL/SC
1937# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1938#
1939config WEAK_REORDERING_BEYOND_LLSC
1940 bool
1941endmenu
1942
1943#
1944# These two indicate any level of the MIPS32 and MIPS64 architecture
1945#
1946config CPU_MIPS32
1947 bool
1948 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
1949
1950config CPU_MIPS64
1951 bool
1952 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
1953
1954#
1955# These two indicate the revision of the architecture, either Release 1 or Release 2
1956#
1957config CPU_MIPSR1
1958 bool
1959 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1960
1961config CPU_MIPSR2
1962 bool
1963 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1964 select MIPS_SPRAM
1965
1966config CPU_MIPSR6
1967 bool
1968 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
1969 select MIPS_SPRAM
1970
1971config EVA
1972 bool
1973
1974config XPA
1975 bool
1976
1977config SYS_SUPPORTS_32BIT_KERNEL
1978 bool
1979config SYS_SUPPORTS_64BIT_KERNEL
1980 bool
1981config CPU_SUPPORTS_32BIT_KERNEL
1982 bool
1983config CPU_SUPPORTS_64BIT_KERNEL
1984 bool
1985config CPU_SUPPORTS_CPUFREQ
1986 bool
1987config CPU_SUPPORTS_ADDRWINCFG
1988 bool
1989config CPU_SUPPORTS_HUGEPAGES
1990 bool
1991config CPU_SUPPORTS_UNCACHED_ACCELERATED
1992 bool
1993config MIPS_PGD_C0_CONTEXT
1994 bool
1995 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1996
1997#
1998# Set to y for ptrace access to watch registers.
1999#
2000config HARDWARE_WATCHPOINTS
2001 bool
2002 default y if CPU_MIPSR1 || CPU_MIPSR2
2003
2004menu "Kernel type"
2005
2006choice
2007 prompt "Kernel code model"
2008 help
2009 You should only select this option if you have a workload that
2010 actually benefits from 64-bit processing or if your machine has
2011 large memory. You will only be presented a single option in this
2012 menu if your system does not support both 32-bit and 64-bit kernels.
2013
2014config 32BIT
2015 bool "32-bit kernel"
2016 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2017 select TRAD_SIGNALS
2018 help
2019 Select this option if you want to build a 32-bit kernel.
2020
2021config 64BIT
2022 bool "64-bit kernel"
2023 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2024 help
2025 Select this option if you want to build a 64-bit kernel.
2026
2027endchoice
2028
2029config KVM_GUEST
2030 bool "KVM Guest Kernel"
2031 depends on BROKEN_ON_SMP
2032 help
2033 Select this option if building a guest kernel for KVM (Trap & Emulate)
2034 mode.
2035
2036config KVM_GUEST_TIMER_FREQ
2037 int "Count/Compare Timer Frequency (MHz)"
2038 depends on KVM_GUEST
2039 default 100
2040 help
2041 Set this to non-zero if building a guest kernel for KVM to skip RTC
2042 emulation when determining guest CPU Frequency. Instead, the guest's
2043 timer frequency is specified directly.
2044
2045choice
2046 prompt "Kernel page size"
2047 default PAGE_SIZE_4KB
2048
2049config PAGE_SIZE_4KB
2050 bool "4kB"
2051 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
2052 help
2053 This option select the standard 4kB Linux page size. On some
2054 R3000-family processors this is the only available page size. Using
2055 4kB page size will minimize memory consumption and is therefore
2056 recommended for low memory systems.
2057
2058config PAGE_SIZE_8KB
2059 bool "8kB"
2060 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
2061 help
2062 Using 8kB page size will result in higher performance kernel at
2063 the price of higher memory consumption. This option is available
2064 only on R8000 and cnMIPS processors. Note that you will need a
2065 suitable Linux distribution to support this.
2066
2067config PAGE_SIZE_16KB
2068 bool "16kB"
2069 depends on !CPU_R3000 && !CPU_TX39XX
2070 help
2071 Using 16kB page size will result in higher performance kernel at
2072 the price of higher memory consumption. This option is available on
2073 all non-R3000 family processors. Note that you will need a suitable
2074 Linux distribution to support this.
2075
2076config PAGE_SIZE_32KB
2077 bool "32kB"
2078 depends on CPU_CAVIUM_OCTEON
2079 help
2080 Using 32kB page size will result in higher performance kernel at
2081 the price of higher memory consumption. This option is available
2082 only on cnMIPS cores. Note that you will need a suitable Linux
2083 distribution to support this.
2084
2085config PAGE_SIZE_64KB
2086 bool "64kB"
2087 depends on !CPU_R3000 && !CPU_TX39XX && !CPU_R6000
2088 help
2089 Using 64kB page size will result in higher performance kernel at
2090 the price of higher memory consumption. This option is available on
2091 all non-R3000 family processor. Not that at the time of this
2092 writing this option is still high experimental.
2093
2094endchoice
2095
2096config FORCE_MAX_ZONEORDER
2097 int "Maximum zone order"
2098 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2099 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2100 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2101 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2102 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2103 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2104 range 11 64
2105 default "11"
2106 help
2107 The kernel memory allocator divides physically contiguous memory
2108 blocks into "zones", where each zone is a power of two number of
2109 pages. This option selects the largest power of two that the kernel
2110 keeps in the memory allocator. If you need to allocate very large
2111 blocks of physically contiguous memory, then you may need to
2112 increase this value.
2113
2114 This config option is actually maximum order plus one. For example,
2115 a value of 11 means that the largest free memory block is 2^10 pages.
2116
2117 The page size is not necessarily 4KB. Keep this in mind
2118 when choosing a value for this option.
2119
2120config BOARD_SCACHE
2121 bool
2122
2123config IP22_CPU_SCACHE
2124 bool
2125 select BOARD_SCACHE
2126
2127#
2128# Support for a MIPS32 / MIPS64 style S-caches
2129#
2130config MIPS_CPU_SCACHE
2131 bool
2132 select BOARD_SCACHE
2133
2134config R5000_CPU_SCACHE
2135 bool
2136 select BOARD_SCACHE
2137
2138config RM7000_CPU_SCACHE
2139 bool
2140 select BOARD_SCACHE
2141
2142config SIBYTE_DMA_PAGEOPS
2143 bool "Use DMA to clear/copy pages"
2144 depends on CPU_SB1
2145 help
2146 Instead of using the CPU to zero and copy pages, use a Data Mover
2147 channel. These DMA channels are otherwise unused by the standard
2148 SiByte Linux port. Seems to give a small performance benefit.
2149
2150config CPU_HAS_PREFETCH
2151 bool
2152
2153config CPU_GENERIC_DUMP_TLB
2154 bool
2155 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
2156
2157config CPU_R4K_FPU
2158 bool
2159 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2160
2161config CPU_R4K_CACHE_TLB
2162 bool
2163 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2164
2165config MIPS_MT_SMP
2166 bool "MIPS MT SMP support (1 TC on each available VPE)"
2167 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6
2168 select CPU_MIPSR2_IRQ_VI
2169 select CPU_MIPSR2_IRQ_EI
2170 select SYNC_R4K
2171 select MIPS_MT
2172 select SMP
2173 select SMP_UP
2174 select SYS_SUPPORTS_SMP
2175 select SYS_SUPPORTS_SCHED_SMT
2176 select MIPS_PERF_SHARED_TC_COUNTERS
2177 help
2178 This is a kernel model which is known as SMVP. This is supported
2179 on cores with the MT ASE and uses the available VPEs to implement
2180 virtual processors which supports SMP. This is equivalent to the
2181 Intel Hyperthreading feature. For further information go to
2182 <http://www.imgtec.com/mips/mips-multithreading.asp>.
2183
2184config MIPS_MT
2185 bool
2186
2187config SCHED_SMT
2188 bool "SMT (multithreading) scheduler support"
2189 depends on SYS_SUPPORTS_SCHED_SMT
2190 default n
2191 help
2192 SMT scheduler support improves the CPU scheduler's decision making
2193 when dealing with MIPS MT enabled cores at a cost of slightly
2194 increased overhead in some places. If unsure say N here.
2195
2196config SYS_SUPPORTS_SCHED_SMT
2197 bool
2198
2199config SYS_SUPPORTS_MULTITHREADING
2200 bool
2201
2202config MIPS_MT_FPAFF
2203 bool "Dynamic FPU affinity for FP-intensive threads"
2204 default y
2205 depends on MIPS_MT_SMP
2206
2207config MIPSR2_TO_R6_EMULATOR
2208 bool "MIPS R2-to-R6 emulator"
2209 depends on CPU_MIPSR6 && !SMP
2210 default y
2211 help
2212 Choose this option if you want to run non-R6 MIPS userland code.
2213 Even if you say 'Y' here, the emulator will still be disabled by
2214 default. You can enable it using the 'mipsr2emu' kernel option.
2215 The only reason this is a build-time option is to save ~14K from the
2216 final kernel image.
2217comment "MIPS R2-to-R6 emulator is only available for UP kernels"
2218 depends on SMP && CPU_MIPSR6
2219
2220config MIPS_VPE_LOADER
2221 bool "VPE loader support."
2222 depends on SYS_SUPPORTS_MULTITHREADING && MODULES
2223 select CPU_MIPSR2_IRQ_VI
2224 select CPU_MIPSR2_IRQ_EI
2225 select MIPS_MT
2226 help
2227 Includes a loader for loading an elf relocatable object
2228 onto another VPE and running it.
2229
2230config MIPS_VPE_LOADER_CMP
2231 bool
2232 default "y"
2233 depends on MIPS_VPE_LOADER && MIPS_CMP
2234
2235config MIPS_VPE_LOADER_MT
2236 bool
2237 default "y"
2238 depends on MIPS_VPE_LOADER && !MIPS_CMP
2239
2240config MIPS_VPE_LOADER_TOM
2241 bool "Load VPE program into memory hidden from linux"
2242 depends on MIPS_VPE_LOADER
2243 default y
2244 help
2245 The loader can use memory that is present but has been hidden from
2246 Linux using the kernel command line option "mem=xxMB". It's up to
2247 you to ensure the amount you put in the option and the space your
2248 program requires is less or equal to the amount physically present.
2249
2250config MIPS_VPE_APSP_API
2251 bool "Enable support for AP/SP API (RTLX)"
2252 depends on MIPS_VPE_LOADER
2253 help
2254
2255config MIPS_VPE_APSP_API_CMP
2256 bool
2257 default "y"
2258 depends on MIPS_VPE_APSP_API && MIPS_CMP
2259
2260config MIPS_VPE_APSP_API_MT
2261 bool
2262 default "y"
2263 depends on MIPS_VPE_APSP_API && !MIPS_CMP
2264
2265config MIPS_CMP
2266 bool "MIPS CMP framework support (DEPRECATED)"
2267 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2268 select SMP
2269 select SYNC_R4K
2270 select SYS_SUPPORTS_SMP
2271 select WEAK_ORDERING
2272 default n
2273 help
2274 Select this if you are using a bootloader which implements the "CMP
2275 framework" protocol (ie. YAMON) and want your kernel to make use of
2276 its ability to start secondary CPUs.
2277
2278 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2279 instead of this.
2280
2281config MIPS_CPS
2282 bool "MIPS Coherent Processing System support"
2283 depends on SYS_SUPPORTS_MIPS_CPS && !CPU_MIPSR6
2284 select MIPS_CM
2285 select MIPS_CPC
2286 select MIPS_CPS_PM if HOTPLUG_CPU
2287 select SMP
2288 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2289 select SYS_SUPPORTS_HOTPLUG_CPU
2290 select SYS_SUPPORTS_SMP
2291 select WEAK_ORDERING
2292 help
2293 Select this if you wish to run an SMP kernel across multiple cores
2294 within a MIPS Coherent Processing System. When this option is
2295 enabled the kernel will probe for other cores and boot them with
2296 no external assistance. It is safe to enable this when hardware
2297 support is unavailable.
2298
2299config MIPS_CPS_PM
2300 depends on MIPS_CPS
2301 select MIPS_CPC
2302 bool
2303
2304config MIPS_CM
2305 bool
2306
2307config MIPS_CPC
2308 bool
2309
2310config SB1_PASS_2_WORKAROUNDS
2311 bool
2312 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2313 default y
2314
2315config SB1_PASS_2_1_WORKAROUNDS
2316 bool
2317 depends on CPU_SB1 && CPU_SB1_PASS_2
2318 default y
2319
2320
2321config ARCH_PHYS_ADDR_T_64BIT
2322 bool
2323
2324choice
2325 prompt "SmartMIPS or microMIPS ASE support"
2326
2327config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2328 bool "None"
2329 help
2330 Select this if you want neither microMIPS nor SmartMIPS support
2331
2332config CPU_HAS_SMARTMIPS
2333 depends on SYS_SUPPORTS_SMARTMIPS
2334 bool "SmartMIPS"
2335 help
2336 SmartMIPS is a extension of the MIPS32 architecture aimed at
2337 increased security at both hardware and software level for
2338 smartcards. Enabling this option will allow proper use of the
2339 SmartMIPS instructions by Linux applications. However a kernel with
2340 this option will not work on a MIPS core without SmartMIPS core. If
2341 you don't know you probably don't have SmartMIPS and should say N
2342 here.
2343
2344config CPU_MICROMIPS
2345 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2346 bool "microMIPS"
2347 help
2348 When this option is enabled the kernel will be built using the
2349 microMIPS ISA
2350
2351endchoice
2352
2353config CPU_HAS_MSA
2354 bool "Support for the MIPS SIMD Architecture"
2355 depends on CPU_SUPPORTS_MSA
2356 depends on 64BIT || MIPS_O32_FP64_SUPPORT
2357 help
2358 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2359 and a set of SIMD instructions to operate on them. When this option
2360 is enabled the kernel will support allocating & switching MSA
2361 vector register contexts. If you know that your kernel will only be
2362 running on CPUs which do not support MSA or that your userland will
2363 not be making use of it then you may wish to say N here to reduce
2364 the size & complexity of your kernel.
2365
2366 If unsure, say Y.
2367
2368config CPU_HAS_WB
2369 bool
2370
2371config XKS01
2372 bool
2373
2374#
2375# Vectored interrupt mode is an R2 feature
2376#
2377config CPU_MIPSR2_IRQ_VI
2378 bool
2379
2380#
2381# Extended interrupt mode is an R2 feature
2382#
2383config CPU_MIPSR2_IRQ_EI
2384 bool
2385
2386config CPU_HAS_SYNC
2387 bool
2388 depends on !CPU_R3000
2389 default y
2390
2391#
2392# CPU non-features
2393#
2394config CPU_DADDI_WORKAROUNDS
2395 bool
2396
2397config CPU_R4000_WORKAROUNDS
2398 bool
2399 select CPU_R4400_WORKAROUNDS
2400
2401config CPU_R4400_WORKAROUNDS
2402 bool
2403
2404#
2405# - Highmem only makes sense for the 32-bit kernel.
2406# - The current highmem code will only work properly on physically indexed
2407# caches such as R3000, SB1, R7000 or those that look like they're virtually
2408# indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2409# moment we protect the user and offer the highmem option only on machines
2410# where it's known to be safe. This will not offer highmem on a few systems
2411# such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2412# indexed CPUs but we're playing safe.
2413# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2414# know they might have memory configurations that could make use of highmem
2415# support.
2416#
2417config HIGHMEM
2418 bool "High Memory Support"
2419 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2420
2421config CPU_SUPPORTS_HIGHMEM
2422 bool
2423
2424config SYS_SUPPORTS_HIGHMEM
2425 bool
2426
2427config SYS_SUPPORTS_SMARTMIPS
2428 bool
2429
2430config SYS_SUPPORTS_MICROMIPS
2431 bool
2432
2433config SYS_SUPPORTS_MIPS16
2434 bool
2435 help
2436 This option must be set if a kernel might be executed on a MIPS16-
2437 enabled CPU even if MIPS16 is not actually being used. In other
2438 words, it makes the kernel MIPS16-tolerant.
2439
2440config CPU_SUPPORTS_MSA
2441 bool
2442
2443config ARCH_FLATMEM_ENABLE
2444 def_bool y
2445 depends on !NUMA && !CPU_LOONGSON2
2446
2447config ARCH_DISCONTIGMEM_ENABLE
2448 bool
2449 default y if SGI_IP27
2450 help
2451 Say Y to support efficient handling of discontiguous physical memory,
2452 for architectures which are either NUMA (Non-Uniform Memory Access)
2453 or have huge holes in the physical address space for other reasons.
2454 See <file:Documentation/vm/numa> for more.
2455
2456config ARCH_SPARSEMEM_ENABLE
2457 bool
2458 select SPARSEMEM_STATIC
2459
2460config NUMA
2461 bool "NUMA Support"
2462 depends on SYS_SUPPORTS_NUMA
2463 help
2464 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2465 Access). This option improves performance on systems with more
2466 than two nodes; on two node systems it is generally better to
2467 leave it disabled; on single node systems disable this option
2468 disabled.
2469
2470config SYS_SUPPORTS_NUMA
2471 bool
2472
2473config NODES_SHIFT
2474 int
2475 default "6"
2476 depends on NEED_MULTIPLE_NODES
2477
2478config HW_PERF_EVENTS
2479 bool "Enable hardware performance counter support for perf events"
2480 depends on PERF_EVENTS && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2481 default y
2482 help
2483 Enable hardware performance counter support for perf events. If
2484 disabled, perf events will use software events only.
2485
2486source "mm/Kconfig"
2487
2488config SMP
2489 bool "Multi-Processing support"
2490 depends on SYS_SUPPORTS_SMP
2491 help
2492 This enables support for systems with more than one CPU. If you have
2493 a system with only one CPU, say N. If you have a system with more
2494 than one CPU, say Y.
2495
2496 If you say N here, the kernel will run on uni- and multiprocessor
2497 machines, but will use only one CPU of a multiprocessor machine. If
2498 you say Y here, the kernel will run on many, but not all,
2499 uniprocessor machines. On a uniprocessor machine, the kernel
2500 will run faster if you say N here.
2501
2502 People using multiprocessor machines who say Y here should also say
2503 Y to "Enhanced Real Time Clock Support", below.
2504
2505 See also the SMP-HOWTO available at
2506 <http://www.tldp.org/docs.html#howto>.
2507
2508 If you don't know what to do here, say N.
2509
2510config SMP_UP
2511 bool
2512
2513config SYS_SUPPORTS_MIPS_CMP
2514 bool
2515
2516config SYS_SUPPORTS_MIPS_CPS
2517 bool
2518
2519config SYS_SUPPORTS_SMP
2520 bool
2521
2522config NR_CPUS_DEFAULT_4
2523 bool
2524
2525config NR_CPUS_DEFAULT_8
2526 bool
2527
2528config NR_CPUS_DEFAULT_16
2529 bool
2530
2531config NR_CPUS_DEFAULT_32
2532 bool
2533
2534config NR_CPUS_DEFAULT_64
2535 bool
2536
2537config NR_CPUS
2538 int "Maximum number of CPUs (2-256)"
2539 range 2 256
2540 depends on SMP
2541 default "4" if NR_CPUS_DEFAULT_4
2542 default "8" if NR_CPUS_DEFAULT_8
2543 default "16" if NR_CPUS_DEFAULT_16
2544 default "32" if NR_CPUS_DEFAULT_32
2545 default "64" if NR_CPUS_DEFAULT_64
2546 help
2547 This allows you to specify the maximum number of CPUs which this
2548 kernel will support. The maximum supported value is 32 for 32-bit
2549 kernel and 64 for 64-bit kernels; the minimum value which makes
2550 sense is 1 for Qemu (useful only for kernel debugging purposes)
2551 and 2 for all others.
2552
2553 This is purely to save memory - each supported CPU adds
2554 approximately eight kilobytes to the kernel image. For best
2555 performance should round up your number of processors to the next
2556 power of two.
2557
2558config MIPS_PERF_SHARED_TC_COUNTERS
2559 bool
2560
2561#
2562# Timer Interrupt Frequency Configuration
2563#
2564
2565choice
2566 prompt "Timer frequency"
2567 default HZ_250
2568 help
2569 Allows the configuration of the timer frequency.
2570
2571 config HZ_24
2572 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2573
2574 config HZ_48
2575 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2576
2577 config HZ_100
2578 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2579
2580 config HZ_128
2581 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2582
2583 config HZ_250
2584 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2585
2586 config HZ_256
2587 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2588
2589 config HZ_1000
2590 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2591
2592 config HZ_1024
2593 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2594
2595endchoice
2596
2597config SYS_SUPPORTS_24HZ
2598 bool
2599
2600config SYS_SUPPORTS_48HZ
2601 bool
2602
2603config SYS_SUPPORTS_100HZ
2604 bool
2605
2606config SYS_SUPPORTS_128HZ
2607 bool
2608
2609config SYS_SUPPORTS_250HZ
2610 bool
2611
2612config SYS_SUPPORTS_256HZ
2613 bool
2614
2615config SYS_SUPPORTS_1000HZ
2616 bool
2617
2618config SYS_SUPPORTS_1024HZ
2619 bool
2620
2621config SYS_SUPPORTS_ARBIT_HZ
2622 bool
2623 default y if !SYS_SUPPORTS_24HZ && \
2624 !SYS_SUPPORTS_48HZ && \
2625 !SYS_SUPPORTS_100HZ && \
2626 !SYS_SUPPORTS_128HZ && \
2627 !SYS_SUPPORTS_250HZ && \
2628 !SYS_SUPPORTS_256HZ && \
2629 !SYS_SUPPORTS_1000HZ && \
2630 !SYS_SUPPORTS_1024HZ
2631
2632config HZ
2633 int
2634 default 24 if HZ_24
2635 default 48 if HZ_48
2636 default 100 if HZ_100
2637 default 128 if HZ_128
2638 default 250 if HZ_250
2639 default 256 if HZ_256
2640 default 1000 if HZ_1000
2641 default 1024 if HZ_1024
2642
2643config SCHED_HRTICK
2644 def_bool HIGH_RES_TIMERS
2645
2646source "kernel/Kconfig.preempt"
2647
2648config KEXEC
2649 bool "Kexec system call"
2650 select KEXEC_CORE
2651 help
2652 kexec is a system call that implements the ability to shutdown your
2653 current kernel, and to start another kernel. It is like a reboot
2654 but it is independent of the system firmware. And like a reboot
2655 you can start any kernel with it, not just Linux.
2656
2657 The name comes from the similarity to the exec system call.
2658
2659 It is an ongoing process to be certain the hardware in a machine
2660 is properly shutdown, so do not be surprised if this code does not
2661 initially work for you. As of this writing the exact hardware
2662 interface is strongly in flux, so no good recommendation can be
2663 made.
2664
2665config CRASH_DUMP
2666 bool "Kernel crash dumps"
2667 help
2668 Generate crash dump after being started by kexec.
2669 This should be normally only set in special crash dump kernels
2670 which are loaded in the main kernel with kexec-tools into
2671 a specially reserved region and then later executed after
2672 a crash by kdump/kexec. The crash dump kernel must be compiled
2673 to a memory address not used by the main kernel or firmware using
2674 PHYSICAL_START.
2675
2676config PHYSICAL_START
2677 hex "Physical address where the kernel is loaded"
2678 default "0xffffffff84000000" if 64BIT
2679 default "0x84000000" if 32BIT
2680 depends on CRASH_DUMP
2681 help
2682 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2683 If you plan to use kernel for capturing the crash dump change
2684 this value to start of the reserved region (the "X" value as
2685 specified in the "crashkernel=YM@XM" command line boot parameter
2686 passed to the panic-ed kernel).
2687
2688config SECCOMP
2689 bool "Enable seccomp to safely compute untrusted bytecode"
2690 depends on PROC_FS
2691 default y
2692 help
2693 This kernel feature is useful for number crunching applications
2694 that may need to compute untrusted bytecode during their
2695 execution. By using pipes or other transports made available to
2696 the process as file descriptors supporting the read/write
2697 syscalls, it's possible to isolate those applications in
2698 their own address space using seccomp. Once seccomp is
2699 enabled via /proc/<pid>/seccomp, it cannot be disabled
2700 and the task is only allowed to execute a few safe syscalls
2701 defined by each seccomp mode.
2702
2703 If unsure, say Y. Only embedded should say N here.
2704
2705config MIPS_O32_FP64_SUPPORT
2706 bool "Support for O32 binaries using 64-bit FP"
2707 depends on 32BIT || MIPS32_O32
2708 help
2709 When this is enabled, the kernel will support use of 64-bit floating
2710 point registers with binaries using the O32 ABI along with the
2711 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2712 32-bit MIPS systems this support is at the cost of increasing the
2713 size and complexity of the compiled FPU emulator. Thus if you are
2714 running a MIPS32 system and know that none of your userland binaries
2715 will require 64-bit floating point, you may wish to reduce the size
2716 of your kernel & potentially improve FP emulation performance by
2717 saying N here.
2718
2719 Although binutils currently supports use of this flag the details
2720 concerning its effect upon the O32 ABI in userland are still being
2721 worked on. In order to avoid userland becoming dependant upon current
2722 behaviour before the details have been finalised, this option should
2723 be considered experimental and only enabled by those working upon
2724 said details.
2725
2726 If unsure, say N.
2727
2728config USE_OF
2729 bool
2730 select OF
2731 select OF_EARLY_FLATTREE
2732 select IRQ_DOMAIN
2733
2734config BUILTIN_DTB
2735 bool
2736
2737choice
2738 prompt "Kernel appended dtb support" if USE_OF
2739 default MIPS_NO_APPENDED_DTB
2740
2741 config MIPS_NO_APPENDED_DTB
2742 bool "None"
2743 help
2744 Do not enable appended dtb support.
2745
2746 config MIPS_ELF_APPENDED_DTB
2747 bool "vmlinux"
2748 help
2749 With this option, the boot code will look for a device tree binary
2750 DTB) included in the vmlinux ELF section .appended_dtb. By default
2751 it is empty and the DTB can be appended using binutils command
2752 objcopy:
2753
2754 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
2755
2756 This is meant as a backward compatiblity convenience for those
2757 systems with a bootloader that can't be upgraded to accommodate
2758 the documented boot protocol using a device tree.
2759
2760 config MIPS_RAW_APPENDED_DTB
2761 bool "vmlinux.bin"
2762 help
2763 With this option, the boot code will look for a device tree binary
2764 DTB) appended to raw vmlinux.bin (without decompressor).
2765 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
2766
2767 This is meant as a backward compatibility convenience for those
2768 systems with a bootloader that can't be upgraded to accommodate
2769 the documented boot protocol using a device tree.
2770
2771 Beware that there is very little in terms of protection against
2772 this option being confused by leftover garbage in memory that might
2773 look like a DTB header after a reboot if no actual DTB is appended
2774 to vmlinux.bin. Do not leave this option active in a production kernel
2775 if you don't intend to always append a DTB.
2776
2777 config MIPS_ZBOOT_APPENDED_DTB
2778 bool "vmlinuz.bin"
2779 depends on SYS_SUPPORTS_ZBOOT
2780 help
2781 With this option, the boot code will look for a device tree binary
2782 DTB) appended to raw vmlinuz.bin (with decompressor).
2783 (e.g. cat vmlinuz.bin <filename>.dtb > vmlinuz_w_dtb).
2784
2785 This is meant as a backward compatibility convenience for those
2786 systems with a bootloader that can't be upgraded to accommodate
2787 the documented boot protocol using a device tree.
2788
2789 Beware that there is very little in terms of protection against
2790 this option being confused by leftover garbage in memory that might
2791 look like a DTB header after a reboot if no actual DTB is appended
2792 to vmlinuz.bin. Do not leave this option active in a production kernel
2793 if you don't intend to always append a DTB.
2794endchoice
2795
2796choice
2797 prompt "Kernel command line type" if !CMDLINE_OVERRIDE
2798 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
2799 !MIPS_MALTA && !MIPS_SEAD3 && \
2800 !CAVIUM_OCTEON_SOC
2801 default MIPS_CMDLINE_FROM_BOOTLOADER
2802
2803 config MIPS_CMDLINE_FROM_DTB
2804 depends on USE_OF
2805 bool "Dtb kernel arguments if available"
2806
2807 config MIPS_CMDLINE_DTB_EXTEND
2808 depends on USE_OF
2809 bool "Extend dtb kernel arguments with bootloader arguments"
2810
2811 config MIPS_CMDLINE_FROM_BOOTLOADER
2812 bool "Bootloader kernel arguments if available"
2813endchoice
2814
2815endmenu
2816
2817config LOCKDEP_SUPPORT
2818 bool
2819 default y
2820
2821config STACKTRACE_SUPPORT
2822 bool
2823 default y
2824
2825config HAVE_LATENCYTOP_SUPPORT
2826 bool
2827 default y
2828
2829config PGTABLE_LEVELS
2830 int
2831 default 3 if 64BIT && !PAGE_SIZE_64KB
2832 default 2
2833
2834source "init/Kconfig"
2835
2836source "kernel/Kconfig.freezer"
2837
2838menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2839
2840config HW_HAS_EISA
2841 bool
2842config HW_HAS_PCI
2843 bool
2844
2845config PCI
2846 bool "Support for PCI controller"
2847 depends on HW_HAS_PCI
2848 select PCI_DOMAINS
2849 select NO_GENERIC_PCI_IOPORT_MAP
2850 help
2851 Find out whether you have a PCI motherboard. PCI is the name of a
2852 bus system, i.e. the way the CPU talks to the other stuff inside
2853 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2854 say Y, otherwise N.
2855
2856config HT_PCI
2857 bool "Support for HT-linked PCI"
2858 default y
2859 depends on CPU_LOONGSON3
2860 select PCI
2861 select PCI_DOMAINS
2862 help
2863 Loongson family machines use Hyper-Transport bus for inter-core
2864 connection and device connection. The PCI bus is a subordinate
2865 linked at HT. Choose Y for Loongson-3 based machines.
2866
2867config PCI_DOMAINS
2868 bool
2869
2870source "drivers/pci/Kconfig"
2871
2872#
2873# ISA support is now enabled via select. Too many systems still have the one
2874# or other ISA chip on the board that users don't know about so don't expect
2875# users to choose the right thing ...
2876#
2877config ISA
2878 bool
2879
2880config EISA
2881 bool "EISA support"
2882 depends on HW_HAS_EISA
2883 select ISA
2884 select GENERIC_ISA_DMA
2885 ---help---
2886 The Extended Industry Standard Architecture (EISA) bus was
2887 developed as an open alternative to the IBM MicroChannel bus.
2888
2889 The EISA bus provided some of the features of the IBM MicroChannel
2890 bus while maintaining backward compatibility with cards made for
2891 the older ISA bus. The EISA bus saw limited use between 1988 and
2892 1995 when it was made obsolete by the PCI bus.
2893
2894 Say Y here if you are building a kernel for an EISA-based machine.
2895
2896 Otherwise, say N.
2897
2898source "drivers/eisa/Kconfig"
2899
2900config TC
2901 bool "TURBOchannel support"
2902 depends on MACH_DECSTATION
2903 help
2904 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2905 processors. TURBOchannel programming specifications are available
2906 at:
2907 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2908 and:
2909 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2910 Linux driver support status is documented at:
2911 <http://www.linux-mips.org/wiki/DECstation>
2912
2913config MMU
2914 bool
2915 default y
2916
2917config I8253
2918 bool
2919 select CLKSRC_I8253
2920 select CLKEVT_I8253
2921 select MIPS_EXTERNAL_TIMER
2922
2923config ZONE_DMA
2924 bool
2925
2926config ZONE_DMA32
2927 bool
2928
2929source "drivers/pcmcia/Kconfig"
2930
2931config RAPIDIO
2932 tristate "RapidIO support"
2933 depends on PCI
2934 default n
2935 help
2936 If you say Y here, the kernel will include drivers and
2937 infrastructure code to support RapidIO interconnect devices.
2938
2939source "drivers/rapidio/Kconfig"
2940
2941endmenu
2942
2943menu "Executable file formats"
2944
2945source "fs/Kconfig.binfmt"
2946
2947config TRAD_SIGNALS
2948 bool
2949
2950config MIPS32_COMPAT
2951 bool
2952
2953config COMPAT
2954 bool
2955
2956config SYSVIPC_COMPAT
2957 bool
2958
2959config MIPS32_O32
2960 bool "Kernel support for o32 binaries"
2961 depends on 64BIT
2962 select ARCH_WANT_OLD_COMPAT_IPC
2963 select COMPAT
2964 select MIPS32_COMPAT
2965 select SYSVIPC_COMPAT if SYSVIPC
2966 help
2967 Select this option if you want to run o32 binaries. These are pure
2968 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2969 existing binaries are in this format.
2970
2971 If unsure, say Y.
2972
2973config MIPS32_N32
2974 bool "Kernel support for n32 binaries"
2975 depends on 64BIT
2976 select COMPAT
2977 select MIPS32_COMPAT
2978 select SYSVIPC_COMPAT if SYSVIPC
2979 help
2980 Select this option if you want to run n32 binaries. These are
2981 64-bit binaries using 32-bit quantities for addressing and certain
2982 data that would normally be 64-bit. They are used in special
2983 cases.
2984
2985 If unsure, say N.
2986
2987config BINFMT_ELF32
2988 bool
2989 default y if MIPS32_O32 || MIPS32_N32
2990
2991endmenu
2992
2993menu "Power management options"
2994
2995config ARCH_HIBERNATION_POSSIBLE
2996 def_bool y
2997 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2998
2999config ARCH_SUSPEND_POSSIBLE
3000 def_bool y
3001 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3002
3003source "kernel/power/Kconfig"
3004
3005endmenu
3006
3007config MIPS_EXTERNAL_TIMER
3008 bool
3009
3010menu "CPU Power Management"
3011
3012if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3013source "drivers/cpufreq/Kconfig"
3014endif
3015
3016source "drivers/cpuidle/Kconfig"
3017
3018endmenu
3019
3020source "net/Kconfig"
3021
3022source "drivers/Kconfig"
3023
3024source "drivers/firmware/Kconfig"
3025
3026source "fs/Kconfig"
3027
3028source "arch/mips/Kconfig.debug"
3029
3030source "security/Kconfig"
3031
3032source "crypto/Kconfig"
3033
3034source "lib/Kconfig"
3035
3036source "arch/mips/kvm/Kconfig"