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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 HAVE_GENERIC_DMA_COHERENT
5 select HAVE_IDE
6 select HAVE_OPROFILE
7 select HAVE_IRQ_WORK
8 select HAVE_PERF_EVENTS
9 select PERF_USE_VMALLOC
10 select HAVE_ARCH_KGDB
11 select ARCH_HAVE_CUSTOM_GPIO_H
12 select HAVE_FUNCTION_TRACER
13 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
14 select HAVE_DYNAMIC_FTRACE
15 select HAVE_FTRACE_MCOUNT_RECORD
16 select HAVE_C_RECORDMCOUNT
17 select HAVE_FUNCTION_GRAPH_TRACER
18 select HAVE_KPROBES
19 select HAVE_KRETPROBES
20 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
21 select RTC_LIB if !MACH_LOONGSON
22 select GENERIC_ATOMIC64 if !64BIT
23 select HAVE_DMA_ATTRS
24 select HAVE_DMA_API_DEBUG
25 select HAVE_GENERIC_HARDIRQS
26 select GENERIC_IRQ_PROBE
27 select GENERIC_IRQ_SHOW
28 select HAVE_ARCH_JUMP_LABEL
29 select IRQ_FORCED_THREADING
30 select HAVE_MEMBLOCK
31 select HAVE_MEMBLOCK_NODE_MAP
32 select ARCH_DISCARD_MEMBLOCK
33 select GENERIC_SMP_IDLE_THREAD
34 select BUILDTIME_EXTABLE_SORT
35 select GENERIC_CLOCKEVENTS
36 select GENERIC_CMOS_UPDATE
37
38menu "Machine selection"
39
40config ZONE_DMA
41 bool
42
43choice
44 prompt "System type"
45 default SGI_IP22
46
47config MIPS_ALCHEMY
48 bool "Alchemy processor based machines"
49 select 64BIT_PHYS_ADDR
50 select CEVT_R4K_LIB
51 select CSRC_R4K_LIB
52 select IRQ_CPU
53 select SYS_HAS_CPU_MIPS32_R1
54 select SYS_SUPPORTS_32BIT_KERNEL
55 select SYS_SUPPORTS_APM_EMULATION
56 select GENERIC_GPIO
57 select ARCH_WANT_OPTIONAL_GPIOLIB
58 select SYS_SUPPORTS_ZBOOT
59 select USB_ARCH_HAS_OHCI
60 select USB_ARCH_HAS_EHCI
61
62config AR7
63 bool "Texas Instruments AR7"
64 select BOOT_ELF32
65 select DMA_NONCOHERENT
66 select CEVT_R4K
67 select CSRC_R4K
68 select IRQ_CPU
69 select NO_EXCEPT_FILL
70 select SWAP_IO_SPACE
71 select SYS_HAS_CPU_MIPS32_R1
72 select SYS_HAS_EARLY_PRINTK
73 select SYS_SUPPORTS_32BIT_KERNEL
74 select SYS_SUPPORTS_LITTLE_ENDIAN
75 select SYS_SUPPORTS_ZBOOT_UART16550
76 select ARCH_REQUIRE_GPIOLIB
77 select VLYNQ
78 help
79 Support for the Texas Instruments AR7 System-on-a-Chip
80 family: TNETD7100, 7200 and 7300.
81
82config ATH79
83 bool "Atheros AR71XX/AR724X/AR913X based boards"
84 select ARCH_REQUIRE_GPIOLIB
85 select BOOT_RAW
86 select CEVT_R4K
87 select CSRC_R4K
88 select DMA_NONCOHERENT
89 select IRQ_CPU
90 select MIPS_MACHINE
91 select SYS_HAS_CPU_MIPS32_R2
92 select SYS_HAS_EARLY_PRINTK
93 select SYS_SUPPORTS_32BIT_KERNEL
94 select SYS_SUPPORTS_BIG_ENDIAN
95 help
96 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
97
98config BCM47XX
99 bool "Broadcom BCM47XX based boards"
100 select CEVT_R4K
101 select CSRC_R4K
102 select DMA_NONCOHERENT
103 select HW_HAS_PCI
104 select IRQ_CPU
105 select SYS_SUPPORTS_32BIT_KERNEL
106 select SYS_SUPPORTS_LITTLE_ENDIAN
107 select GENERIC_GPIO
108 select SYS_HAS_EARLY_PRINTK
109 select CFE
110 help
111 Support for BCM47XX based boards
112
113config BCM63XX
114 bool "Broadcom BCM63XX based boards"
115 select CEVT_R4K
116 select CSRC_R4K
117 select DMA_NONCOHERENT
118 select IRQ_CPU
119 select SYS_HAS_CPU_MIPS32_R1
120 select SYS_SUPPORTS_32BIT_KERNEL
121 select SYS_SUPPORTS_BIG_ENDIAN
122 select SYS_HAS_EARLY_PRINTK
123 select SWAP_IO_SPACE
124 select ARCH_REQUIRE_GPIOLIB
125 help
126 Support for BCM63XX based boards
127
128config MIPS_COBALT
129 bool "Cobalt Server"
130 select CEVT_R4K
131 select CSRC_R4K
132 select CEVT_GT641XX
133 select DMA_NONCOHERENT
134 select HW_HAS_PCI
135 select I8253
136 select I8259
137 select IRQ_CPU
138 select IRQ_GT641XX
139 select PCI_GT64XXX_PCI0
140 select PCI
141 select SYS_HAS_CPU_NEVADA
142 select SYS_HAS_EARLY_PRINTK
143 select SYS_SUPPORTS_32BIT_KERNEL
144 select SYS_SUPPORTS_64BIT_KERNEL
145 select SYS_SUPPORTS_LITTLE_ENDIAN
146
147config MACH_DECSTATION
148 bool "DECstations"
149 select BOOT_ELF32
150 select CEVT_DS1287
151 select CEVT_R4K
152 select CSRC_IOASIC
153 select CSRC_R4K
154 select CPU_DADDI_WORKAROUNDS if 64BIT
155 select CPU_R4000_WORKAROUNDS if 64BIT
156 select CPU_R4400_WORKAROUNDS if 64BIT
157 select DMA_NONCOHERENT
158 select NO_IOPORT
159 select IRQ_CPU
160 select SYS_HAS_CPU_R3000
161 select SYS_HAS_CPU_R4X00
162 select SYS_SUPPORTS_32BIT_KERNEL
163 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
164 select SYS_SUPPORTS_LITTLE_ENDIAN
165 select SYS_SUPPORTS_128HZ
166 select SYS_SUPPORTS_256HZ
167 select SYS_SUPPORTS_1024HZ
168 help
169 This enables support for DEC's MIPS based workstations. For details
170 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
171 DECstation porting pages on <http://decstation.unix-ag.org/>.
172
173 If you have one of the following DECstation Models you definitely
174 want to choose R4xx0 for the CPU Type:
175
176 DECstation 5000/50
177 DECstation 5000/150
178 DECstation 5000/260
179 DECsystem 5900/260
180
181 otherwise choose R3000.
182
183config MACH_JAZZ
184 bool "Jazz family of machines"
185 select ARC
186 select ARC32
187 select ARCH_MAY_HAVE_PC_FDC
188 select CEVT_R4K
189 select CSRC_R4K
190 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
191 select GENERIC_ISA_DMA
192 select HAVE_PCSPKR_PLATFORM
193 select IRQ_CPU
194 select I8253
195 select I8259
196 select ISA
197 select SYS_HAS_CPU_R4X00
198 select SYS_SUPPORTS_32BIT_KERNEL
199 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
200 select SYS_SUPPORTS_100HZ
201 help
202 This a family of machines based on the MIPS R4030 chipset which was
203 used by several vendors to build RISC/os and Windows NT workstations.
204 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
205 Olivetti M700-10 workstations.
206
207config MACH_JZ4740
208 bool "Ingenic JZ4740 based machines"
209 select SYS_HAS_CPU_MIPS32_R1
210 select SYS_SUPPORTS_32BIT_KERNEL
211 select SYS_SUPPORTS_LITTLE_ENDIAN
212 select DMA_NONCOHERENT
213 select IRQ_CPU
214 select GENERIC_GPIO
215 select ARCH_REQUIRE_GPIOLIB
216 select SYS_HAS_EARLY_PRINTK
217 select HAVE_PWM
218 select HAVE_CLK
219 select GENERIC_IRQ_CHIP
220
221config LANTIQ
222 bool "Lantiq based platforms"
223 select DMA_NONCOHERENT
224 select IRQ_CPU
225 select CEVT_R4K
226 select CSRC_R4K
227 select SYS_HAS_CPU_MIPS32_R1
228 select SYS_HAS_CPU_MIPS32_R2
229 select SYS_SUPPORTS_BIG_ENDIAN
230 select SYS_SUPPORTS_32BIT_KERNEL
231 select SYS_SUPPORTS_MULTITHREADING
232 select SYS_HAS_EARLY_PRINTK
233 select ARCH_REQUIRE_GPIOLIB
234 select SWAP_IO_SPACE
235 select BOOT_RAW
236 select HAVE_MACH_CLKDEV
237 select CLKDEV_LOOKUP
238 select USE_OF
239
240config LASAT
241 bool "LASAT Networks platforms"
242 select CEVT_R4K
243 select CSRC_R4K
244 select DMA_NONCOHERENT
245 select SYS_HAS_EARLY_PRINTK
246 select HW_HAS_PCI
247 select IRQ_CPU
248 select PCI_GT64XXX_PCI0
249 select MIPS_NILE4
250 select R5000_CPU_SCACHE
251 select SYS_HAS_CPU_R5000
252 select SYS_SUPPORTS_32BIT_KERNEL
253 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
254 select SYS_SUPPORTS_LITTLE_ENDIAN
255
256config MACH_LOONGSON
257 bool "Loongson family of machines"
258 select SYS_SUPPORTS_ZBOOT
259 help
260 This enables the support of Loongson family of machines.
261
262 Loongson is a family of general-purpose MIPS-compatible CPUs.
263 developed at Institute of Computing Technology (ICT),
264 Chinese Academy of Sciences (CAS) in the People's Republic
265 of China. The chief architect is Professor Weiwu Hu.
266
267config MIPS_MALTA
268 bool "MIPS Malta board"
269 select ARCH_MAY_HAVE_PC_FDC
270 select BOOT_ELF32
271 select BOOT_RAW
272 select CEVT_R4K
273 select CSRC_R4K
274 select DMA_NONCOHERENT
275 select GENERIC_ISA_DMA
276 select HAVE_PCSPKR_PLATFORM
277 select IRQ_CPU
278 select IRQ_GIC
279 select HW_HAS_PCI
280 select I8253
281 select I8259
282 select MIPS_BOARDS_GEN
283 select MIPS_BONITO64
284 select MIPS_CPU_SCACHE
285 select PCI_GT64XXX_PCI0
286 select MIPS_MSC
287 select SWAP_IO_SPACE
288 select SYS_HAS_CPU_MIPS32_R1
289 select SYS_HAS_CPU_MIPS32_R2
290 select SYS_HAS_CPU_MIPS64_R1
291 select SYS_HAS_CPU_MIPS64_R2
292 select SYS_HAS_CPU_NEVADA
293 select SYS_HAS_CPU_RM7000
294 select SYS_HAS_EARLY_PRINTK
295 select SYS_SUPPORTS_32BIT_KERNEL
296 select SYS_SUPPORTS_64BIT_KERNEL
297 select SYS_SUPPORTS_BIG_ENDIAN
298 select SYS_SUPPORTS_LITTLE_ENDIAN
299 select SYS_SUPPORTS_MIPS_CMP
300 select SYS_SUPPORTS_MULTITHREADING
301 select SYS_SUPPORTS_SMARTMIPS
302 select SYS_SUPPORTS_ZBOOT
303 help
304 This enables support for the MIPS Technologies Malta evaluation
305 board.
306
307config MIPS_SIM
308 bool 'MIPS simulator (MIPSsim)'
309 select CEVT_R4K
310 select CSRC_R4K
311 select DMA_NONCOHERENT
312 select SYS_HAS_EARLY_PRINTK
313 select IRQ_CPU
314 select BOOT_RAW
315 select SYS_HAS_CPU_MIPS32_R1
316 select SYS_HAS_CPU_MIPS32_R2
317 select SYS_HAS_EARLY_PRINTK
318 select SYS_SUPPORTS_32BIT_KERNEL
319 select SYS_SUPPORTS_BIG_ENDIAN
320 select SYS_SUPPORTS_MULTITHREADING
321 select SYS_SUPPORTS_LITTLE_ENDIAN
322 help
323 This option enables support for MIPS Technologies MIPSsim software
324 emulator.
325
326config NEC_MARKEINS
327 bool "NEC EMMA2RH Mark-eins board"
328 select SOC_EMMA2RH
329 select HW_HAS_PCI
330 help
331 This enables support for the NEC Electronics Mark-eins boards.
332
333config MACH_VR41XX
334 bool "NEC VR4100 series based machines"
335 select CEVT_R4K
336 select CSRC_R4K
337 select SYS_HAS_CPU_VR41XX
338 select ARCH_REQUIRE_GPIOLIB
339
340config NXP_STB220
341 bool "NXP STB220 board"
342 select SOC_PNX833X
343 help
344 Support for NXP Semiconductors STB220 Development Board.
345
346config NXP_STB225
347 bool "NXP 225 board"
348 select SOC_PNX833X
349 select SOC_PNX8335
350 help
351 Support for NXP Semiconductors STB225 Development Board.
352
353config PNX8550_JBS
354 bool "NXP PNX8550 based JBS board"
355 select PNX8550
356 select SYS_SUPPORTS_LITTLE_ENDIAN
357
358config PNX8550_STB810
359 bool "NXP PNX8550 based STB810 board"
360 select PNX8550
361 select SYS_SUPPORTS_LITTLE_ENDIAN
362
363config PMC_MSP
364 bool "PMC-Sierra MSP chipsets"
365 depends on EXPERIMENTAL
366 select CEVT_R4K
367 select CSRC_R4K
368 select DMA_NONCOHERENT
369 select SWAP_IO_SPACE
370 select NO_EXCEPT_FILL
371 select BOOT_RAW
372 select SYS_HAS_CPU_MIPS32_R1
373 select SYS_HAS_CPU_MIPS32_R2
374 select SYS_SUPPORTS_32BIT_KERNEL
375 select SYS_SUPPORTS_BIG_ENDIAN
376 select IRQ_CPU
377 select SERIAL_8250
378 select SERIAL_8250_CONSOLE
379 help
380 This adds support for the PMC-Sierra family of Multi-Service
381 Processor System-On-A-Chips. These parts include a number
382 of integrated peripherals, interfaces and DSPs in addition to
383 a variety of MIPS cores.
384
385config PMC_YOSEMITE
386 bool "PMC-Sierra Yosemite eval board"
387 select CEVT_R4K
388 select CSRC_R4K
389 select DMA_COHERENT
390 select HW_HAS_PCI
391 select IRQ_CPU
392 select IRQ_CPU_RM7K
393 select IRQ_CPU_RM9K
394 select SWAP_IO_SPACE
395 select SYS_HAS_CPU_RM9000
396 select SYS_HAS_EARLY_PRINTK
397 select SYS_SUPPORTS_32BIT_KERNEL
398 select SYS_SUPPORTS_64BIT_KERNEL
399 select SYS_SUPPORTS_BIG_ENDIAN
400 select SYS_SUPPORTS_HIGHMEM
401 select SYS_SUPPORTS_SMP
402 help
403 Yosemite is an evaluation board for the RM9000x2 processor
404 manufactured by PMC-Sierra.
405
406config POWERTV
407 bool "Cisco PowerTV"
408 select BOOT_ELF32
409 select CEVT_R4K
410 select CPU_MIPSR2_IRQ_VI
411 select CPU_MIPSR2_IRQ_EI
412 select CSRC_POWERTV
413 select DMA_NONCOHERENT
414 select HW_HAS_PCI
415 select SYS_HAS_EARLY_PRINTK
416 select SYS_HAS_CPU_MIPS32_R2
417 select SYS_SUPPORTS_32BIT_KERNEL
418 select SYS_SUPPORTS_BIG_ENDIAN
419 select SYS_SUPPORTS_HIGHMEM
420 select USB_OHCI_LITTLE_ENDIAN
421 help
422 This enables support for the Cisco PowerTV Platform.
423
424config SGI_IP22
425 bool "SGI IP22 (Indy/Indigo2)"
426 select ARC
427 select ARC32
428 select BOOT_ELF32
429 select CEVT_R4K
430 select CSRC_R4K
431 select DEFAULT_SGI_PARTITION
432 select DMA_NONCOHERENT
433 select HW_HAS_EISA
434 select I8253
435 select I8259
436 select IP22_CPU_SCACHE
437 select IRQ_CPU
438 select GENERIC_ISA_DMA_SUPPORT_BROKEN
439 select SGI_HAS_I8042
440 select SGI_HAS_INDYDOG
441 select SGI_HAS_HAL2
442 select SGI_HAS_SEEQ
443 select SGI_HAS_WD93
444 select SGI_HAS_ZILOG
445 select SWAP_IO_SPACE
446 select SYS_HAS_CPU_R4X00
447 select SYS_HAS_CPU_R5000
448 #
449 # Disable EARLY_PRINTK for now since it leads to overwritten prom
450 # memory during early boot on some machines.
451 #
452 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
453 # for a more details discussion
454 #
455 # select SYS_HAS_EARLY_PRINTK
456 select SYS_SUPPORTS_32BIT_KERNEL
457 select SYS_SUPPORTS_64BIT_KERNEL
458 select SYS_SUPPORTS_BIG_ENDIAN
459 help
460 This are the SGI Indy, Challenge S and Indigo2, as well as certain
461 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
462 that runs on these, say Y here.
463
464config SGI_IP27
465 bool "SGI IP27 (Origin200/2000)"
466 select ARC
467 select ARC64
468 select BOOT_ELF64
469 select DEFAULT_SGI_PARTITION
470 select DMA_COHERENT
471 select SYS_HAS_EARLY_PRINTK
472 select HW_HAS_PCI
473 select NR_CPUS_DEFAULT_64
474 select SYS_HAS_CPU_R10000
475 select SYS_SUPPORTS_64BIT_KERNEL
476 select SYS_SUPPORTS_BIG_ENDIAN
477 select SYS_SUPPORTS_NUMA
478 select SYS_SUPPORTS_SMP
479 help
480 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
481 workstations. To compile a Linux kernel that runs on these, say Y
482 here.
483
484config SGI_IP28
485 bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
486 depends on EXPERIMENTAL
487 select ARC
488 select ARC64
489 select BOOT_ELF64
490 select CEVT_R4K
491 select CSRC_R4K
492 select DEFAULT_SGI_PARTITION
493 select DMA_NONCOHERENT
494 select GENERIC_ISA_DMA_SUPPORT_BROKEN
495 select IRQ_CPU
496 select HW_HAS_EISA
497 select I8253
498 select I8259
499 select SGI_HAS_I8042
500 select SGI_HAS_INDYDOG
501 select SGI_HAS_HAL2
502 select SGI_HAS_SEEQ
503 select SGI_HAS_WD93
504 select SGI_HAS_ZILOG
505 select SWAP_IO_SPACE
506 select SYS_HAS_CPU_R10000
507 #
508 # Disable EARLY_PRINTK for now since it leads to overwritten prom
509 # memory during early boot on some machines.
510 #
511 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
512 # for a more details discussion
513 #
514 # select SYS_HAS_EARLY_PRINTK
515 select SYS_SUPPORTS_64BIT_KERNEL
516 select SYS_SUPPORTS_BIG_ENDIAN
517 help
518 This is the SGI Indigo2 with R10000 processor. To compile a Linux
519 kernel that runs on these, say Y here.
520
521config SGI_IP32
522 bool "SGI IP32 (O2)"
523 select ARC
524 select ARC32
525 select BOOT_ELF32
526 select CEVT_R4K
527 select CSRC_R4K
528 select DMA_NONCOHERENT
529 select HW_HAS_PCI
530 select IRQ_CPU
531 select R5000_CPU_SCACHE
532 select RM7000_CPU_SCACHE
533 select SYS_HAS_CPU_R5000
534 select SYS_HAS_CPU_R10000 if BROKEN
535 select SYS_HAS_CPU_RM7000
536 select SYS_HAS_CPU_NEVADA
537 select SYS_SUPPORTS_64BIT_KERNEL
538 select SYS_SUPPORTS_BIG_ENDIAN
539 help
540 If you want this kernel to run on SGI O2 workstation, say Y here.
541
542config SIBYTE_CRHINE
543 bool "Sibyte BCM91120C-CRhine"
544 depends on EXPERIMENTAL
545 select BOOT_ELF32
546 select DMA_COHERENT
547 select SIBYTE_BCM1120
548 select SWAP_IO_SPACE
549 select SYS_HAS_CPU_SB1
550 select SYS_SUPPORTS_BIG_ENDIAN
551 select SYS_SUPPORTS_LITTLE_ENDIAN
552
553config SIBYTE_CARMEL
554 bool "Sibyte BCM91120x-Carmel"
555 depends on EXPERIMENTAL
556 select BOOT_ELF32
557 select DMA_COHERENT
558 select SIBYTE_BCM1120
559 select SWAP_IO_SPACE
560 select SYS_HAS_CPU_SB1
561 select SYS_SUPPORTS_BIG_ENDIAN
562 select SYS_SUPPORTS_LITTLE_ENDIAN
563
564config SIBYTE_CRHONE
565 bool "Sibyte BCM91125C-CRhone"
566 depends on EXPERIMENTAL
567 select BOOT_ELF32
568 select DMA_COHERENT
569 select SIBYTE_BCM1125
570 select SWAP_IO_SPACE
571 select SYS_HAS_CPU_SB1
572 select SYS_SUPPORTS_BIG_ENDIAN
573 select SYS_SUPPORTS_HIGHMEM
574 select SYS_SUPPORTS_LITTLE_ENDIAN
575
576config SIBYTE_RHONE
577 bool "Sibyte BCM91125E-Rhone"
578 depends on EXPERIMENTAL
579 select BOOT_ELF32
580 select DMA_COHERENT
581 select SIBYTE_BCM1125H
582 select SWAP_IO_SPACE
583 select SYS_HAS_CPU_SB1
584 select SYS_SUPPORTS_BIG_ENDIAN
585 select SYS_SUPPORTS_LITTLE_ENDIAN
586
587config SIBYTE_SWARM
588 bool "Sibyte BCM91250A-SWARM"
589 select BOOT_ELF32
590 select DMA_COHERENT
591 select HAVE_PATA_PLATFORM
592 select NR_CPUS_DEFAULT_2
593 select SIBYTE_SB1250
594 select SWAP_IO_SPACE
595 select SYS_HAS_CPU_SB1
596 select SYS_SUPPORTS_BIG_ENDIAN
597 select SYS_SUPPORTS_HIGHMEM
598 select SYS_SUPPORTS_LITTLE_ENDIAN
599 select ZONE_DMA32 if 64BIT
600
601config SIBYTE_LITTLESUR
602 bool "Sibyte BCM91250C2-LittleSur"
603 depends on EXPERIMENTAL
604 select BOOT_ELF32
605 select DMA_COHERENT
606 select HAVE_PATA_PLATFORM
607 select NR_CPUS_DEFAULT_2
608 select SIBYTE_SB1250
609 select SWAP_IO_SPACE
610 select SYS_HAS_CPU_SB1
611 select SYS_SUPPORTS_BIG_ENDIAN
612 select SYS_SUPPORTS_HIGHMEM
613 select SYS_SUPPORTS_LITTLE_ENDIAN
614
615config SIBYTE_SENTOSA
616 bool "Sibyte BCM91250E-Sentosa"
617 depends on EXPERIMENTAL
618 select BOOT_ELF32
619 select DMA_COHERENT
620 select NR_CPUS_DEFAULT_2
621 select SIBYTE_SB1250
622 select SWAP_IO_SPACE
623 select SYS_HAS_CPU_SB1
624 select SYS_SUPPORTS_BIG_ENDIAN
625 select SYS_SUPPORTS_LITTLE_ENDIAN
626
627config SIBYTE_BIGSUR
628 bool "Sibyte BCM91480B-BigSur"
629 select BOOT_ELF32
630 select DMA_COHERENT
631 select NR_CPUS_DEFAULT_4
632 select SIBYTE_BCM1x80
633 select SWAP_IO_SPACE
634 select SYS_HAS_CPU_SB1
635 select SYS_SUPPORTS_BIG_ENDIAN
636 select SYS_SUPPORTS_HIGHMEM
637 select SYS_SUPPORTS_LITTLE_ENDIAN
638 select ZONE_DMA32 if 64BIT
639
640config SNI_RM
641 bool "SNI RM200/300/400"
642 select ARC if CPU_LITTLE_ENDIAN
643 select ARC32 if CPU_LITTLE_ENDIAN
644 select SNIPROM if CPU_BIG_ENDIAN
645 select ARCH_MAY_HAVE_PC_FDC
646 select BOOT_ELF32
647 select CEVT_R4K
648 select CSRC_R4K
649 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
650 select DMA_NONCOHERENT
651 select GENERIC_ISA_DMA
652 select HAVE_PCSPKR_PLATFORM
653 select HW_HAS_EISA
654 select HW_HAS_PCI
655 select IRQ_CPU
656 select I8253
657 select I8259
658 select ISA
659 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
660 select SYS_HAS_CPU_R4X00
661 select SYS_HAS_CPU_R5000
662 select SYS_HAS_CPU_R10000
663 select R5000_CPU_SCACHE
664 select SYS_HAS_EARLY_PRINTK
665 select SYS_SUPPORTS_32BIT_KERNEL
666 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
667 select SYS_SUPPORTS_BIG_ENDIAN
668 select SYS_SUPPORTS_HIGHMEM
669 select SYS_SUPPORTS_LITTLE_ENDIAN
670 help
671 The SNI RM200/300/400 are MIPS-based machines manufactured by
672 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
673 Technology and now in turn merged with Fujitsu. Say Y here to
674 support this machine type.
675
676config MACH_TX39XX
677 bool "Toshiba TX39 series based machines"
678
679config MACH_TX49XX
680 bool "Toshiba TX49 series based machines"
681
682config MIKROTIK_RB532
683 bool "Mikrotik RB532 boards"
684 select CEVT_R4K
685 select CSRC_R4K
686 select DMA_NONCOHERENT
687 select HW_HAS_PCI
688 select IRQ_CPU
689 select SYS_HAS_CPU_MIPS32_R1
690 select SYS_SUPPORTS_32BIT_KERNEL
691 select SYS_SUPPORTS_LITTLE_ENDIAN
692 select SWAP_IO_SPACE
693 select BOOT_RAW
694 select ARCH_REQUIRE_GPIOLIB
695 help
696 Support the Mikrotik(tm) RouterBoard 532 series,
697 based on the IDT RC32434 SoC.
698
699config WR_PPMC
700 bool "Wind River PPMC board"
701 select CEVT_R4K
702 select CSRC_R4K
703 select IRQ_CPU
704 select BOOT_ELF32
705 select DMA_NONCOHERENT
706 select HW_HAS_PCI
707 select PCI_GT64XXX_PCI0
708 select SWAP_IO_SPACE
709 select SYS_HAS_CPU_MIPS32_R1
710 select SYS_HAS_CPU_MIPS32_R2
711 select SYS_HAS_CPU_MIPS64_R1
712 select SYS_HAS_CPU_NEVADA
713 select SYS_HAS_CPU_RM7000
714 select SYS_SUPPORTS_32BIT_KERNEL
715 select SYS_SUPPORTS_64BIT_KERNEL
716 select SYS_SUPPORTS_BIG_ENDIAN
717 select SYS_SUPPORTS_LITTLE_ENDIAN
718 help
719 This enables support for the Wind River MIPS32 4KC PPMC evaluation
720 board, which is based on GT64120 bridge chip.
721
722config CAVIUM_OCTEON_SIMULATOR
723 bool "Cavium Networks Octeon Simulator"
724 select CEVT_R4K
725 select 64BIT_PHYS_ADDR
726 select DMA_COHERENT
727 select SYS_SUPPORTS_64BIT_KERNEL
728 select SYS_SUPPORTS_BIG_ENDIAN
729 select SYS_SUPPORTS_HOTPLUG_CPU
730 select SYS_HAS_CPU_CAVIUM_OCTEON
731 select HOLES_IN_ZONE
732 help
733 The Octeon simulator is software performance model of the Cavium
734 Octeon Processor. It supports simulating Octeon processors on x86
735 hardware.
736
737config CAVIUM_OCTEON_REFERENCE_BOARD
738 bool "Cavium Networks Octeon reference board"
739 select CEVT_R4K
740 select 64BIT_PHYS_ADDR
741 select DMA_COHERENT
742 select SYS_SUPPORTS_64BIT_KERNEL
743 select SYS_SUPPORTS_BIG_ENDIAN
744 select SYS_SUPPORTS_HOTPLUG_CPU
745 select SYS_HAS_EARLY_PRINTK
746 select SYS_HAS_CPU_CAVIUM_OCTEON
747 select SWAP_IO_SPACE
748 select HW_HAS_PCI
749 select ARCH_SUPPORTS_MSI
750 select ZONE_DMA32
751 select USB_ARCH_HAS_OHCI
752 select USB_ARCH_HAS_EHCI
753 select HOLES_IN_ZONE
754 help
755 This option supports all of the Octeon reference boards from Cavium
756 Networks. It builds a kernel that dynamically determines the Octeon
757 CPU type and supports all known board reference implementations.
758 Some of the supported boards are:
759 EBT3000
760 EBH3000
761 EBH3100
762 Thunder
763 Kodama
764 Hikari
765 Say Y here for most Octeon reference boards.
766
767config NLM_XLR_BOARD
768 bool "Netlogic XLR/XLS based systems"
769 depends on EXPERIMENTAL
770 select BOOT_ELF32
771 select NLM_COMMON
772 select SYS_HAS_CPU_XLR
773 select SYS_SUPPORTS_SMP
774 select HW_HAS_PCI
775 select SWAP_IO_SPACE
776 select SYS_SUPPORTS_32BIT_KERNEL
777 select SYS_SUPPORTS_64BIT_KERNEL
778 select 64BIT_PHYS_ADDR
779 select SYS_SUPPORTS_BIG_ENDIAN
780 select SYS_SUPPORTS_HIGHMEM
781 select DMA_COHERENT
782 select NR_CPUS_DEFAULT_32
783 select CEVT_R4K
784 select CSRC_R4K
785 select IRQ_CPU
786 select ARCH_SUPPORTS_MSI
787 select ZONE_DMA if 64BIT
788 select SYNC_R4K
789 select SYS_HAS_EARLY_PRINTK
790 help
791 Support for systems based on Netlogic XLR and XLS processors.
792 Say Y here if you have a XLR or XLS based board.
793
794config NLM_XLP_BOARD
795 bool "Netlogic XLP based systems"
796 depends on EXPERIMENTAL
797 select BOOT_ELF32
798 select NLM_COMMON
799 select SYS_HAS_CPU_XLP
800 select SYS_SUPPORTS_SMP
801 select HW_HAS_PCI
802 select SWAP_IO_SPACE
803 select SYS_SUPPORTS_32BIT_KERNEL
804 select SYS_SUPPORTS_64BIT_KERNEL
805 select 64BIT_PHYS_ADDR
806 select SYS_SUPPORTS_BIG_ENDIAN
807 select SYS_SUPPORTS_LITTLE_ENDIAN
808 select SYS_SUPPORTS_HIGHMEM
809 select DMA_COHERENT
810 select NR_CPUS_DEFAULT_32
811 select CEVT_R4K
812 select CSRC_R4K
813 select IRQ_CPU
814 select ZONE_DMA if 64BIT
815 select SYNC_R4K
816 select SYS_HAS_EARLY_PRINTK
817 help
818 This board is based on Netlogic XLP Processor.
819 Say Y here if you have a XLP based board.
820
821endchoice
822
823source "arch/mips/alchemy/Kconfig"
824source "arch/mips/ath79/Kconfig"
825source "arch/mips/bcm47xx/Kconfig"
826source "arch/mips/bcm63xx/Kconfig"
827source "arch/mips/jazz/Kconfig"
828source "arch/mips/jz4740/Kconfig"
829source "arch/mips/lantiq/Kconfig"
830source "arch/mips/lasat/Kconfig"
831source "arch/mips/pmc-sierra/Kconfig"
832source "arch/mips/powertv/Kconfig"
833source "arch/mips/sgi-ip27/Kconfig"
834source "arch/mips/sibyte/Kconfig"
835source "arch/mips/txx9/Kconfig"
836source "arch/mips/vr41xx/Kconfig"
837source "arch/mips/cavium-octeon/Kconfig"
838source "arch/mips/loongson/Kconfig"
839source "arch/mips/netlogic/Kconfig"
840
841endmenu
842
843config RWSEM_GENERIC_SPINLOCK
844 bool
845 default y
846
847config RWSEM_XCHGADD_ALGORITHM
848 bool
849
850config ARCH_HAS_ILOG2_U32
851 bool
852 default n
853
854config ARCH_HAS_ILOG2_U64
855 bool
856 default n
857
858config GENERIC_HWEIGHT
859 bool
860 default y
861
862config GENERIC_CALIBRATE_DELAY
863 bool
864 default y
865
866config SCHED_OMIT_FRAME_POINTER
867 bool
868 default y
869
870#
871# Select some configuration options automatically based on user selections.
872#
873config ARC
874 bool
875
876config ARCH_MAY_HAVE_PC_FDC
877 bool
878
879config BOOT_RAW
880 bool
881
882config CEVT_BCM1480
883 bool
884
885config CEVT_DS1287
886 bool
887
888config CEVT_GT641XX
889 bool
890
891config CEVT_R4K_LIB
892 bool
893
894config CEVT_R4K
895 select CEVT_R4K_LIB
896 bool
897
898config CEVT_SB1250
899 bool
900
901config CEVT_TXX9
902 bool
903
904config CSRC_BCM1480
905 bool
906
907config CSRC_IOASIC
908 bool
909
910config CSRC_POWERTV
911 bool
912
913config CSRC_R4K_LIB
914 bool
915
916config CSRC_R4K
917 select CSRC_R4K_LIB
918 bool
919
920config CSRC_SB1250
921 bool
922
923config GPIO_TXX9
924 select GENERIC_GPIO
925 select ARCH_REQUIRE_GPIOLIB
926 bool
927
928config CFE
929 bool
930
931config ARCH_DMA_ADDR_T_64BIT
932 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
933
934config DMA_COHERENT
935 bool
936
937config DMA_NONCOHERENT
938 bool
939 select NEED_DMA_MAP_STATE
940
941config NEED_DMA_MAP_STATE
942 bool
943
944config SYS_HAS_EARLY_PRINTK
945 bool
946
947config HOTPLUG_CPU
948 bool "Support for hot-pluggable CPUs"
949 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
950 help
951 Say Y here to allow turning CPUs off and on. CPUs can be
952 controlled through /sys/devices/system/cpu.
953 (Note: power management support will enable this option
954 automatically on SMP systems. )
955 Say N if you want to disable CPU hotplug.
956
957config SYS_SUPPORTS_HOTPLUG_CPU
958 bool
959
960config I8259
961 bool
962
963config MIPS_BONITO64
964 bool
965
966config MIPS_MSC
967 bool
968
969config MIPS_NILE4
970 bool
971
972config MIPS_DISABLE_OBSOLETE_IDE
973 bool
974
975config SYNC_R4K
976 bool
977
978config MIPS_MACHINE
979 def_bool n
980
981config NO_IOPORT
982 def_bool n
983
984config GENERIC_ISA_DMA
985 bool
986 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
987 select ISA_DMA_API
988
989config GENERIC_ISA_DMA_SUPPORT_BROKEN
990 bool
991 select GENERIC_ISA_DMA
992
993config ISA_DMA_API
994 bool
995
996config GENERIC_GPIO
997 bool
998
999config HOLES_IN_ZONE
1000 bool
1001
1002#
1003# Endianness selection. Sufficiently obscure so many users don't know what to
1004# answer,so we try hard to limit the available choices. Also the use of a
1005# choice statement should be more obvious to the user.
1006#
1007choice
1008 prompt "Endianness selection"
1009 help
1010 Some MIPS machines can be configured for either little or big endian
1011 byte order. These modes require different kernels and a different
1012 Linux distribution. In general there is one preferred byteorder for a
1013 particular system but some systems are just as commonly used in the
1014 one or the other endianness.
1015
1016config CPU_BIG_ENDIAN
1017 bool "Big endian"
1018 depends on SYS_SUPPORTS_BIG_ENDIAN
1019
1020config CPU_LITTLE_ENDIAN
1021 bool "Little endian"
1022 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1023 help
1024
1025endchoice
1026
1027config EXPORT_UASM
1028 bool
1029
1030config SYS_SUPPORTS_APM_EMULATION
1031 bool
1032
1033config SYS_SUPPORTS_BIG_ENDIAN
1034 bool
1035
1036config SYS_SUPPORTS_LITTLE_ENDIAN
1037 bool
1038
1039config SYS_SUPPORTS_HUGETLBFS
1040 bool
1041 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1042 default y
1043
1044config IRQ_CPU
1045 bool
1046
1047config IRQ_CPU_RM7K
1048 bool
1049
1050config IRQ_CPU_RM9K
1051 bool
1052
1053config IRQ_MSP_SLP
1054 bool
1055
1056config IRQ_MSP_CIC
1057 bool
1058
1059config IRQ_TXX9
1060 bool
1061
1062config IRQ_GT641XX
1063 bool
1064
1065config IRQ_GIC
1066 bool
1067
1068config MIPS_BOARDS_GEN
1069 bool
1070
1071config PCI_GT64XXX_PCI0
1072 bool
1073
1074config NO_EXCEPT_FILL
1075 bool
1076
1077config MIPS_RM9122
1078 bool
1079 select SERIAL_RM9000
1080
1081config SOC_EMMA2RH
1082 bool
1083 select CEVT_R4K
1084 select CSRC_R4K
1085 select DMA_NONCOHERENT
1086 select IRQ_CPU
1087 select SWAP_IO_SPACE
1088 select SYS_HAS_CPU_R5500
1089 select SYS_SUPPORTS_32BIT_KERNEL
1090 select SYS_SUPPORTS_64BIT_KERNEL
1091 select SYS_SUPPORTS_BIG_ENDIAN
1092
1093config SOC_PNX833X
1094 bool
1095 select CEVT_R4K
1096 select CSRC_R4K
1097 select IRQ_CPU
1098 select DMA_NONCOHERENT
1099 select SYS_HAS_CPU_MIPS32_R2
1100 select SYS_SUPPORTS_32BIT_KERNEL
1101 select SYS_SUPPORTS_LITTLE_ENDIAN
1102 select SYS_SUPPORTS_BIG_ENDIAN
1103 select GENERIC_GPIO
1104 select CPU_MIPSR2_IRQ_VI
1105
1106config SOC_PNX8335
1107 bool
1108 select SOC_PNX833X
1109
1110config PNX8550
1111 bool
1112 select SOC_PNX8550
1113
1114config SOC_PNX8550
1115 bool
1116 select DMA_NONCOHERENT
1117 select HW_HAS_PCI
1118 select SYS_HAS_CPU_MIPS32_R1
1119 select SYS_HAS_EARLY_PRINTK
1120 select SYS_SUPPORTS_32BIT_KERNEL
1121 select GENERIC_GPIO
1122
1123config SWAP_IO_SPACE
1124 bool
1125
1126config SERIAL_RM9000
1127 bool
1128
1129config SGI_HAS_INDYDOG
1130 bool
1131
1132config SGI_HAS_HAL2
1133 bool
1134
1135config SGI_HAS_SEEQ
1136 bool
1137
1138config SGI_HAS_WD93
1139 bool
1140
1141config SGI_HAS_ZILOG
1142 bool
1143
1144config SGI_HAS_I8042
1145 bool
1146
1147config DEFAULT_SGI_PARTITION
1148 bool
1149
1150config ARC32
1151 bool
1152
1153config SNIPROM
1154 bool
1155
1156config BOOT_ELF32
1157 bool
1158
1159config MIPS_L1_CACHE_SHIFT
1160 int
1161 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
1162 default "6" if MIPS_CPU_SCACHE
1163 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1164 default "5"
1165
1166config HAVE_STD_PC_SERIAL_PORT
1167 bool
1168
1169config ARC_CONSOLE
1170 bool "ARC console support"
1171 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1172
1173config ARC_MEMORY
1174 bool
1175 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1176 default y
1177
1178config ARC_PROMLIB
1179 bool
1180 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1181 default y
1182
1183config ARC64
1184 bool
1185
1186config BOOT_ELF64
1187 bool
1188
1189menu "CPU selection"
1190
1191choice
1192 prompt "CPU type"
1193 default CPU_R4X00
1194
1195config CPU_LOONGSON2E
1196 bool "Loongson 2E"
1197 depends on SYS_HAS_CPU_LOONGSON2E
1198 select CPU_LOONGSON2
1199 help
1200 The Loongson 2E processor implements the MIPS III instruction set
1201 with many extensions.
1202
1203 It has an internal FPGA northbridge, which is compatible to
1204 bonito64.
1205
1206config CPU_LOONGSON2F
1207 bool "Loongson 2F"
1208 depends on SYS_HAS_CPU_LOONGSON2F
1209 select CPU_LOONGSON2
1210 select GENERIC_GPIO
1211 select ARCH_REQUIRE_GPIOLIB
1212 help
1213 The Loongson 2F processor implements the MIPS III instruction set
1214 with many extensions.
1215
1216 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1217 have a similar programming interface with FPGA northbridge used in
1218 Loongson2E.
1219
1220config CPU_MIPS32_R1
1221 bool "MIPS32 Release 1"
1222 depends on SYS_HAS_CPU_MIPS32_R1
1223 select CPU_HAS_PREFETCH
1224 select CPU_SUPPORTS_32BIT_KERNEL
1225 select CPU_SUPPORTS_HIGHMEM
1226 help
1227 Choose this option to build a kernel for release 1 or later of the
1228 MIPS32 architecture. Most modern embedded systems with a 32-bit
1229 MIPS processor are based on a MIPS32 processor. If you know the
1230 specific type of processor in your system, choose those that one
1231 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1232 Release 2 of the MIPS32 architecture is available since several
1233 years so chances are you even have a MIPS32 Release 2 processor
1234 in which case you should choose CPU_MIPS32_R2 instead for better
1235 performance.
1236
1237config CPU_MIPS32_R2
1238 bool "MIPS32 Release 2"
1239 depends on SYS_HAS_CPU_MIPS32_R2
1240 select CPU_HAS_PREFETCH
1241 select CPU_SUPPORTS_32BIT_KERNEL
1242 select CPU_SUPPORTS_HIGHMEM
1243 help
1244 Choose this option to build a kernel for release 2 or later of the
1245 MIPS32 architecture. Most modern embedded systems with a 32-bit
1246 MIPS processor are based on a MIPS32 processor. If you know the
1247 specific type of processor in your system, choose those that one
1248 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1249
1250config CPU_MIPS64_R1
1251 bool "MIPS64 Release 1"
1252 depends on SYS_HAS_CPU_MIPS64_R1
1253 select CPU_HAS_PREFETCH
1254 select CPU_SUPPORTS_32BIT_KERNEL
1255 select CPU_SUPPORTS_64BIT_KERNEL
1256 select CPU_SUPPORTS_HIGHMEM
1257 select CPU_SUPPORTS_HUGEPAGES
1258 help
1259 Choose this option to build a kernel for release 1 or later of the
1260 MIPS64 architecture. Many modern embedded systems with a 64-bit
1261 MIPS processor are based on a MIPS64 processor. If you know the
1262 specific type of processor in your system, choose those that one
1263 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1264 Release 2 of the MIPS64 architecture is available since several
1265 years so chances are you even have a MIPS64 Release 2 processor
1266 in which case you should choose CPU_MIPS64_R2 instead for better
1267 performance.
1268
1269config CPU_MIPS64_R2
1270 bool "MIPS64 Release 2"
1271 depends on SYS_HAS_CPU_MIPS64_R2
1272 select CPU_HAS_PREFETCH
1273 select CPU_SUPPORTS_32BIT_KERNEL
1274 select CPU_SUPPORTS_64BIT_KERNEL
1275 select CPU_SUPPORTS_HIGHMEM
1276 select CPU_SUPPORTS_HUGEPAGES
1277 help
1278 Choose this option to build a kernel for release 2 or later of the
1279 MIPS64 architecture. Many modern embedded systems with a 64-bit
1280 MIPS processor are based on a MIPS64 processor. If you know the
1281 specific type of processor in your system, choose those that one
1282 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1283
1284config CPU_R3000
1285 bool "R3000"
1286 depends on SYS_HAS_CPU_R3000
1287 select CPU_HAS_WB
1288 select CPU_SUPPORTS_32BIT_KERNEL
1289 select CPU_SUPPORTS_HIGHMEM
1290 help
1291 Please make sure to pick the right CPU type. Linux/MIPS is not
1292 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1293 *not* work on R4000 machines and vice versa. However, since most
1294 of the supported machines have an R4000 (or similar) CPU, R4x00
1295 might be a safe bet. If the resulting kernel does not work,
1296 try to recompile with R3000.
1297
1298config CPU_TX39XX
1299 bool "R39XX"
1300 depends on SYS_HAS_CPU_TX39XX
1301 select CPU_SUPPORTS_32BIT_KERNEL
1302
1303config CPU_VR41XX
1304 bool "R41xx"
1305 depends on SYS_HAS_CPU_VR41XX
1306 select CPU_SUPPORTS_32BIT_KERNEL
1307 select CPU_SUPPORTS_64BIT_KERNEL
1308 help
1309 The options selects support for the NEC VR4100 series of processors.
1310 Only choose this option if you have one of these processors as a
1311 kernel built with this option will not run on any other type of
1312 processor or vice versa.
1313
1314config CPU_R4300
1315 bool "R4300"
1316 depends on SYS_HAS_CPU_R4300
1317 select CPU_SUPPORTS_32BIT_KERNEL
1318 select CPU_SUPPORTS_64BIT_KERNEL
1319 help
1320 MIPS Technologies R4300-series processors.
1321
1322config CPU_R4X00
1323 bool "R4x00"
1324 depends on SYS_HAS_CPU_R4X00
1325 select CPU_SUPPORTS_32BIT_KERNEL
1326 select CPU_SUPPORTS_64BIT_KERNEL
1327 help
1328 MIPS Technologies R4000-series processors other than 4300, including
1329 the R4000, R4400, R4600, and 4700.
1330
1331config CPU_TX49XX
1332 bool "R49XX"
1333 depends on SYS_HAS_CPU_TX49XX
1334 select CPU_HAS_PREFETCH
1335 select CPU_SUPPORTS_32BIT_KERNEL
1336 select CPU_SUPPORTS_64BIT_KERNEL
1337
1338config CPU_R5000
1339 bool "R5000"
1340 depends on SYS_HAS_CPU_R5000
1341 select CPU_SUPPORTS_32BIT_KERNEL
1342 select CPU_SUPPORTS_64BIT_KERNEL
1343 help
1344 MIPS Technologies R5000-series processors other than the Nevada.
1345
1346config CPU_R5432
1347 bool "R5432"
1348 depends on SYS_HAS_CPU_R5432
1349 select CPU_SUPPORTS_32BIT_KERNEL
1350 select CPU_SUPPORTS_64BIT_KERNEL
1351
1352config CPU_R5500
1353 bool "R5500"
1354 depends on SYS_HAS_CPU_R5500
1355 select CPU_SUPPORTS_32BIT_KERNEL
1356 select CPU_SUPPORTS_64BIT_KERNEL
1357 select CPU_SUPPORTS_HUGEPAGES
1358 help
1359 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1360 instruction set.
1361
1362config CPU_R6000
1363 bool "R6000"
1364 depends on EXPERIMENTAL
1365 depends on SYS_HAS_CPU_R6000
1366 select CPU_SUPPORTS_32BIT_KERNEL
1367 help
1368 MIPS Technologies R6000 and R6000A series processors. Note these
1369 processors are extremely rare and the support for them is incomplete.
1370
1371config CPU_NEVADA
1372 bool "RM52xx"
1373 depends on SYS_HAS_CPU_NEVADA
1374 select CPU_SUPPORTS_32BIT_KERNEL
1375 select CPU_SUPPORTS_64BIT_KERNEL
1376 help
1377 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1378
1379config CPU_R8000
1380 bool "R8000"
1381 depends on EXPERIMENTAL
1382 depends on SYS_HAS_CPU_R8000
1383 select CPU_HAS_PREFETCH
1384 select CPU_SUPPORTS_64BIT_KERNEL
1385 help
1386 MIPS Technologies R8000 processors. Note these processors are
1387 uncommon and the support for them is incomplete.
1388
1389config CPU_R10000
1390 bool "R10000"
1391 depends on SYS_HAS_CPU_R10000
1392 select CPU_HAS_PREFETCH
1393 select CPU_SUPPORTS_32BIT_KERNEL
1394 select CPU_SUPPORTS_64BIT_KERNEL
1395 select CPU_SUPPORTS_HIGHMEM
1396 help
1397 MIPS Technologies R10000-series processors.
1398
1399config CPU_RM7000
1400 bool "RM7000"
1401 depends on SYS_HAS_CPU_RM7000
1402 select CPU_HAS_PREFETCH
1403 select CPU_SUPPORTS_32BIT_KERNEL
1404 select CPU_SUPPORTS_64BIT_KERNEL
1405 select CPU_SUPPORTS_HIGHMEM
1406
1407config CPU_RM9000
1408 bool "RM9000"
1409 depends on SYS_HAS_CPU_RM9000
1410 select CPU_HAS_PREFETCH
1411 select CPU_SUPPORTS_32BIT_KERNEL
1412 select CPU_SUPPORTS_64BIT_KERNEL
1413 select CPU_SUPPORTS_HIGHMEM
1414 select WEAK_ORDERING
1415
1416config CPU_SB1
1417 bool "SB1"
1418 depends on SYS_HAS_CPU_SB1
1419 select CPU_SUPPORTS_32BIT_KERNEL
1420 select CPU_SUPPORTS_64BIT_KERNEL
1421 select CPU_SUPPORTS_HIGHMEM
1422 select WEAK_ORDERING
1423
1424config CPU_CAVIUM_OCTEON
1425 bool "Cavium Octeon processor"
1426 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1427 select ARCH_SPARSEMEM_ENABLE
1428 select CPU_HAS_PREFETCH
1429 select CPU_SUPPORTS_64BIT_KERNEL
1430 select SYS_SUPPORTS_SMP
1431 select NR_CPUS_DEFAULT_16
1432 select WEAK_ORDERING
1433 select CPU_SUPPORTS_HIGHMEM
1434 select CPU_SUPPORTS_HUGEPAGES
1435 help
1436 The Cavium Octeon processor is a highly integrated chip containing
1437 many ethernet hardware widgets for networking tasks. The processor
1438 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1439 Full details can be found at http://www.caviumnetworks.com.
1440
1441config CPU_BMIPS3300
1442 bool "BMIPS3300"
1443 depends on SYS_HAS_CPU_BMIPS3300
1444 select CPU_BMIPS
1445 help
1446 Broadcom BMIPS3300 processors.
1447
1448config CPU_BMIPS4350
1449 bool "BMIPS4350"
1450 depends on SYS_HAS_CPU_BMIPS4350
1451 select CPU_BMIPS
1452 select SYS_SUPPORTS_SMP
1453 select SYS_SUPPORTS_HOTPLUG_CPU
1454 help
1455 Broadcom BMIPS4350 ("VIPER") processors.
1456
1457config CPU_BMIPS4380
1458 bool "BMIPS4380"
1459 depends on SYS_HAS_CPU_BMIPS4380
1460 select CPU_BMIPS
1461 select SYS_SUPPORTS_SMP
1462 select SYS_SUPPORTS_HOTPLUG_CPU
1463 help
1464 Broadcom BMIPS4380 processors.
1465
1466config CPU_BMIPS5000
1467 bool "BMIPS5000"
1468 depends on SYS_HAS_CPU_BMIPS5000
1469 select CPU_BMIPS
1470 select CPU_SUPPORTS_HIGHMEM
1471 select MIPS_CPU_SCACHE
1472 select SYS_SUPPORTS_SMP
1473 select SYS_SUPPORTS_HOTPLUG_CPU
1474 help
1475 Broadcom BMIPS5000 processors.
1476
1477config CPU_XLR
1478 bool "Netlogic XLR SoC"
1479 depends on SYS_HAS_CPU_XLR
1480 select CPU_SUPPORTS_32BIT_KERNEL
1481 select CPU_SUPPORTS_64BIT_KERNEL
1482 select CPU_SUPPORTS_HIGHMEM
1483 select WEAK_ORDERING
1484 select WEAK_REORDERING_BEYOND_LLSC
1485 select CPU_SUPPORTS_HUGEPAGES
1486 help
1487 Netlogic Microsystems XLR/XLS processors.
1488
1489config CPU_XLP
1490 bool "Netlogic XLP SoC"
1491 depends on SYS_HAS_CPU_XLP
1492 select CPU_SUPPORTS_32BIT_KERNEL
1493 select CPU_SUPPORTS_64BIT_KERNEL
1494 select CPU_SUPPORTS_HIGHMEM
1495 select CPU_HAS_LLSC
1496 select WEAK_ORDERING
1497 select WEAK_REORDERING_BEYOND_LLSC
1498 select CPU_HAS_PREFETCH
1499 help
1500 Netlogic Microsystems XLP processors.
1501endchoice
1502
1503if CPU_LOONGSON2F
1504config CPU_NOP_WORKAROUNDS
1505 bool
1506
1507config CPU_JUMP_WORKAROUNDS
1508 bool
1509
1510config CPU_LOONGSON2F_WORKAROUNDS
1511 bool "Loongson 2F Workarounds"
1512 default y
1513 select CPU_NOP_WORKAROUNDS
1514 select CPU_JUMP_WORKAROUNDS
1515 help
1516 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1517 require workarounds. Without workarounds the system may hang
1518 unexpectedly. For more information please refer to the gas
1519 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1520
1521 Loongson 2F03 and later have fixed these issues and no workarounds
1522 are needed. The workarounds have no significant side effect on them
1523 but may decrease the performance of the system so this option should
1524 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1525 systems.
1526
1527 If unsure, please say Y.
1528endif # CPU_LOONGSON2F
1529
1530config SYS_SUPPORTS_ZBOOT
1531 bool
1532 select HAVE_KERNEL_GZIP
1533 select HAVE_KERNEL_BZIP2
1534 select HAVE_KERNEL_LZMA
1535 select HAVE_KERNEL_LZO
1536
1537config SYS_SUPPORTS_ZBOOT_UART16550
1538 bool
1539 select SYS_SUPPORTS_ZBOOT
1540
1541config CPU_LOONGSON2
1542 bool
1543 select CPU_SUPPORTS_32BIT_KERNEL
1544 select CPU_SUPPORTS_64BIT_KERNEL
1545 select CPU_SUPPORTS_HIGHMEM
1546
1547config CPU_BMIPS
1548 bool
1549 select CPU_MIPS32
1550 select CPU_SUPPORTS_32BIT_KERNEL
1551 select DMA_NONCOHERENT
1552 select IRQ_CPU
1553 select SWAP_IO_SPACE
1554 select WEAK_ORDERING
1555
1556config SYS_HAS_CPU_LOONGSON2E
1557 bool
1558
1559config SYS_HAS_CPU_LOONGSON2F
1560 bool
1561 select CPU_SUPPORTS_CPUFREQ
1562 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1563 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1564
1565config SYS_HAS_CPU_MIPS32_R1
1566 bool
1567
1568config SYS_HAS_CPU_MIPS32_R2
1569 bool
1570
1571config SYS_HAS_CPU_MIPS64_R1
1572 bool
1573
1574config SYS_HAS_CPU_MIPS64_R2
1575 bool
1576
1577config SYS_HAS_CPU_R3000
1578 bool
1579
1580config SYS_HAS_CPU_TX39XX
1581 bool
1582
1583config SYS_HAS_CPU_VR41XX
1584 bool
1585
1586config SYS_HAS_CPU_R4300
1587 bool
1588
1589config SYS_HAS_CPU_R4X00
1590 bool
1591
1592config SYS_HAS_CPU_TX49XX
1593 bool
1594
1595config SYS_HAS_CPU_R5000
1596 bool
1597
1598config SYS_HAS_CPU_R5432
1599 bool
1600
1601config SYS_HAS_CPU_R5500
1602 bool
1603
1604config SYS_HAS_CPU_R6000
1605 bool
1606
1607config SYS_HAS_CPU_NEVADA
1608 bool
1609
1610config SYS_HAS_CPU_R8000
1611 bool
1612
1613config SYS_HAS_CPU_R10000
1614 bool
1615
1616config SYS_HAS_CPU_RM7000
1617 bool
1618
1619config SYS_HAS_CPU_RM9000
1620 bool
1621
1622config SYS_HAS_CPU_SB1
1623 bool
1624
1625config SYS_HAS_CPU_CAVIUM_OCTEON
1626 bool
1627
1628config SYS_HAS_CPU_BMIPS3300
1629 bool
1630
1631config SYS_HAS_CPU_BMIPS4350
1632 bool
1633
1634config SYS_HAS_CPU_BMIPS4380
1635 bool
1636
1637config SYS_HAS_CPU_BMIPS5000
1638 bool
1639
1640config SYS_HAS_CPU_XLR
1641 bool
1642
1643config SYS_HAS_CPU_XLP
1644 bool
1645
1646#
1647# CPU may reorder R->R, R->W, W->R, W->W
1648# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1649#
1650config WEAK_ORDERING
1651 bool
1652
1653#
1654# CPU may reorder reads and writes beyond LL/SC
1655# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1656#
1657config WEAK_REORDERING_BEYOND_LLSC
1658 bool
1659endmenu
1660
1661#
1662# These two indicate any level of the MIPS32 and MIPS64 architecture
1663#
1664config CPU_MIPS32
1665 bool
1666 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1667
1668config CPU_MIPS64
1669 bool
1670 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1671
1672#
1673# These two indicate the revision of the architecture, either Release 1 or Release 2
1674#
1675config CPU_MIPSR1
1676 bool
1677 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1678
1679config CPU_MIPSR2
1680 bool
1681 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1682
1683config SYS_SUPPORTS_32BIT_KERNEL
1684 bool
1685config SYS_SUPPORTS_64BIT_KERNEL
1686 bool
1687config CPU_SUPPORTS_32BIT_KERNEL
1688 bool
1689config CPU_SUPPORTS_64BIT_KERNEL
1690 bool
1691config CPU_SUPPORTS_CPUFREQ
1692 bool
1693config CPU_SUPPORTS_ADDRWINCFG
1694 bool
1695config CPU_SUPPORTS_HUGEPAGES
1696 bool
1697config CPU_SUPPORTS_UNCACHED_ACCELERATED
1698 bool
1699config MIPS_PGD_C0_CONTEXT
1700 bool
1701 default y if 64BIT && CPU_MIPSR2
1702
1703#
1704# Set to y for ptrace access to watch registers.
1705#
1706config HARDWARE_WATCHPOINTS
1707 bool
1708 default y if CPU_MIPSR1 || CPU_MIPSR2
1709
1710menu "Kernel type"
1711
1712choice
1713
1714 prompt "Kernel code model"
1715 help
1716 You should only select this option if you have a workload that
1717 actually benefits from 64-bit processing or if your machine has
1718 large memory. You will only be presented a single option in this
1719 menu if your system does not support both 32-bit and 64-bit kernels.
1720
1721config 32BIT
1722 bool "32-bit kernel"
1723 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1724 select TRAD_SIGNALS
1725 help
1726 Select this option if you want to build a 32-bit kernel.
1727config 64BIT
1728 bool "64-bit kernel"
1729 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1730 select HAVE_SYSCALL_WRAPPERS
1731 help
1732 Select this option if you want to build a 64-bit kernel.
1733
1734endchoice
1735
1736choice
1737 prompt "Kernel page size"
1738 default PAGE_SIZE_4KB
1739
1740config PAGE_SIZE_4KB
1741 bool "4kB"
1742 depends on !CPU_LOONGSON2
1743 help
1744 This option select the standard 4kB Linux page size. On some
1745 R3000-family processors this is the only available page size. Using
1746 4kB page size will minimize memory consumption and is therefore
1747 recommended for low memory systems.
1748
1749config PAGE_SIZE_8KB
1750 bool "8kB"
1751 depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON
1752 help
1753 Using 8kB page size will result in higher performance kernel at
1754 the price of higher memory consumption. This option is available
1755 only on R8000 and cnMIPS processors. Note that you will need a
1756 suitable Linux distribution to support this.
1757
1758config PAGE_SIZE_16KB
1759 bool "16kB"
1760 depends on !CPU_R3000 && !CPU_TX39XX
1761 help
1762 Using 16kB page size will result in higher performance kernel at
1763 the price of higher memory consumption. This option is available on
1764 all non-R3000 family processors. Note that you will need a suitable
1765 Linux distribution to support this.
1766
1767config PAGE_SIZE_32KB
1768 bool "32kB"
1769 depends on CPU_CAVIUM_OCTEON
1770 help
1771 Using 32kB page size will result in higher performance kernel at
1772 the price of higher memory consumption. This option is available
1773 only on cnMIPS cores. Note that you will need a suitable Linux
1774 distribution to support this.
1775
1776config PAGE_SIZE_64KB
1777 bool "64kB"
1778 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1779 help
1780 Using 64kB page size will result in higher performance kernel at
1781 the price of higher memory consumption. This option is available on
1782 all non-R3000 family processor. Not that at the time of this
1783 writing this option is still high experimental.
1784
1785endchoice
1786
1787config FORCE_MAX_ZONEORDER
1788 int "Maximum zone order"
1789 range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
1790 default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
1791 range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
1792 default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
1793 range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
1794 default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
1795 range 11 64
1796 default "11"
1797 help
1798 The kernel memory allocator divides physically contiguous memory
1799 blocks into "zones", where each zone is a power of two number of
1800 pages. This option selects the largest power of two that the kernel
1801 keeps in the memory allocator. If you need to allocate very large
1802 blocks of physically contiguous memory, then you may need to
1803 increase this value.
1804
1805 This config option is actually maximum order plus one. For example,
1806 a value of 11 means that the largest free memory block is 2^10 pages.
1807
1808 The page size is not necessarily 4KB. Keep this in mind
1809 when choosing a value for this option.
1810
1811config BOARD_SCACHE
1812 bool
1813
1814config IP22_CPU_SCACHE
1815 bool
1816 select BOARD_SCACHE
1817
1818#
1819# Support for a MIPS32 / MIPS64 style S-caches
1820#
1821config MIPS_CPU_SCACHE
1822 bool
1823 select BOARD_SCACHE
1824
1825config R5000_CPU_SCACHE
1826 bool
1827 select BOARD_SCACHE
1828
1829config RM7000_CPU_SCACHE
1830 bool
1831 select BOARD_SCACHE
1832
1833config SIBYTE_DMA_PAGEOPS
1834 bool "Use DMA to clear/copy pages"
1835 depends on CPU_SB1
1836 help
1837 Instead of using the CPU to zero and copy pages, use a Data Mover
1838 channel. These DMA channels are otherwise unused by the standard
1839 SiByte Linux port. Seems to give a small performance benefit.
1840
1841config CPU_HAS_PREFETCH
1842 bool
1843
1844choice
1845 prompt "MIPS MT options"
1846
1847config MIPS_MT_DISABLED
1848 bool "Disable multithreading support."
1849 help
1850 Use this option if your workload can't take advantage of
1851 MIPS hardware multithreading support. On systems that don't have
1852 the option of an MT-enabled processor this option will be the only
1853 option in this menu.
1854
1855config MIPS_MT_SMP
1856 bool "Use 1 TC on each available VPE for SMP"
1857 depends on SYS_SUPPORTS_MULTITHREADING
1858 select CPU_MIPSR2_IRQ_VI
1859 select CPU_MIPSR2_IRQ_EI
1860 select MIPS_MT
1861 select NR_CPUS_DEFAULT_2
1862 select SMP
1863 select SYS_SUPPORTS_SCHED_SMT if SMP
1864 select SYS_SUPPORTS_SMP
1865 select SMP_UP
1866 help
1867 This is a kernel model which is known a VSMP but lately has been
1868 marketesed into SMVP.
1869 Virtual SMP uses the processor's VPEs to implement virtual
1870 processors. In currently available configuration of the 34K processor
1871 this allows for a dual processor. Both processors will share the same
1872 primary caches; each will obtain the half of the TLB for it's own
1873 exclusive use. For a layman this model can be described as similar to
1874 what Intel calls Hyperthreading.
1875
1876 For further information see http://www.linux-mips.org/wiki/34K#VSMP
1877
1878config MIPS_MT_SMTC
1879 bool "SMTC: Use all TCs on all VPEs for SMP"
1880 depends on CPU_MIPS32_R2
1881 #depends on CPU_MIPS64_R2 # once there is hardware ...
1882 depends on SYS_SUPPORTS_MULTITHREADING
1883 select CPU_MIPSR2_IRQ_VI
1884 select CPU_MIPSR2_IRQ_EI
1885 select MIPS_MT
1886 select NR_CPUS_DEFAULT_8
1887 select SMP
1888 select SYS_SUPPORTS_SMP
1889 select SMP_UP
1890 help
1891 This is a kernel model which is known a SMTC or lately has been
1892 marketesed into SMVP.
1893 is presenting the available TC's of the core as processors to Linux.
1894 On currently available 34K processors this means a Linux system will
1895 see up to 5 processors. The implementation of the SMTC kernel differs
1896 significantly from VSMP and cannot efficiently coexist in the same
1897 kernel binary so the choice between VSMP and SMTC is a compile time
1898 decision.
1899
1900 For further information see http://www.linux-mips.org/wiki/34K#SMTC
1901
1902endchoice
1903
1904config MIPS_MT
1905 bool
1906
1907config SCHED_SMT
1908 bool "SMT (multithreading) scheduler support"
1909 depends on SYS_SUPPORTS_SCHED_SMT
1910 default n
1911 help
1912 SMT scheduler support improves the CPU scheduler's decision making
1913 when dealing with MIPS MT enabled cores at a cost of slightly
1914 increased overhead in some places. If unsure say N here.
1915
1916config SYS_SUPPORTS_SCHED_SMT
1917 bool
1918
1919
1920config SYS_SUPPORTS_MULTITHREADING
1921 bool
1922
1923config MIPS_MT_FPAFF
1924 bool "Dynamic FPU affinity for FP-intensive threads"
1925 default y
1926 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1927
1928config MIPS_VPE_LOADER
1929 bool "VPE loader support."
1930 depends on SYS_SUPPORTS_MULTITHREADING
1931 select CPU_MIPSR2_IRQ_VI
1932 select CPU_MIPSR2_IRQ_EI
1933 select MIPS_MT
1934 help
1935 Includes a loader for loading an elf relocatable object
1936 onto another VPE and running it.
1937
1938config MIPS_MT_SMTC_IM_BACKSTOP
1939 bool "Use per-TC register bits as backstop for inhibited IM bits"
1940 depends on MIPS_MT_SMTC
1941 default n
1942 help
1943 To support multiple TC microthreads acting as "CPUs" within
1944 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1945 during interrupt handling. To support legacy drivers and interrupt
1946 controller management code, SMTC has a "backstop" to track and
1947 if necessary restore the interrupt mask. This has some performance
1948 impact on interrupt service overhead.
1949
1950config MIPS_MT_SMTC_IRQAFF
1951 bool "Support IRQ affinity API"
1952 depends on MIPS_MT_SMTC
1953 default n
1954 help
1955 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1956 for SMTC Linux kernel. Requires platform support, of which
1957 an example can be found in the MIPS kernel i8259 and Malta
1958 platform code. Adds some overhead to interrupt dispatch, and
1959 should be used only if you know what you are doing.
1960
1961config MIPS_VPE_LOADER_TOM
1962 bool "Load VPE program into memory hidden from linux"
1963 depends on MIPS_VPE_LOADER
1964 default y
1965 help
1966 The loader can use memory that is present but has been hidden from
1967 Linux using the kernel command line option "mem=xxMB". It's up to
1968 you to ensure the amount you put in the option and the space your
1969 program requires is less or equal to the amount physically present.
1970
1971# this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1972config MIPS_VPE_APSP_API
1973 bool "Enable support for AP/SP API (RTLX)"
1974 depends on MIPS_VPE_LOADER
1975 help
1976
1977config MIPS_APSP_KSPD
1978 bool "Enable KSPD"
1979 depends on MIPS_VPE_APSP_API
1980 default y
1981 help
1982 KSPD is a kernel daemon that accepts syscall requests from the SP
1983 side, actions them and returns the results. It also handles the
1984 "exit" syscall notifying other kernel modules the SP program is
1985 exiting. You probably want to say yes here.
1986
1987config MIPS_CMP
1988 bool "MIPS CMP framework support"
1989 depends on SYS_SUPPORTS_MIPS_CMP
1990 select SYNC_R4K
1991 select SYS_SUPPORTS_SMP
1992 select SYS_SUPPORTS_SCHED_SMT if SMP
1993 select WEAK_ORDERING
1994 default n
1995 help
1996 This is a placeholder option for the GCMP work. It will need to
1997 be handled differently...
1998
1999config SB1_PASS_1_WORKAROUNDS
2000 bool
2001 depends on CPU_SB1_PASS_1
2002 default y
2003
2004config SB1_PASS_2_WORKAROUNDS
2005 bool
2006 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2007 default y
2008
2009config SB1_PASS_2_1_WORKAROUNDS
2010 bool
2011 depends on CPU_SB1 && CPU_SB1_PASS_2
2012 default y
2013
2014config 64BIT_PHYS_ADDR
2015 bool
2016
2017config ARCH_PHYS_ADDR_T_64BIT
2018 def_bool 64BIT_PHYS_ADDR
2019
2020config CPU_HAS_SMARTMIPS
2021 depends on SYS_SUPPORTS_SMARTMIPS
2022 bool "Support for the SmartMIPS ASE"
2023 help
2024 SmartMIPS is a extension of the MIPS32 architecture aimed at
2025 increased security at both hardware and software level for
2026 smartcards. Enabling this option will allow proper use of the
2027 SmartMIPS instructions by Linux applications. However a kernel with
2028 this option will not work on a MIPS core without SmartMIPS core. If
2029 you don't know you probably don't have SmartMIPS and should say N
2030 here.
2031
2032config CPU_HAS_WB
2033 bool
2034
2035config XKS01
2036 bool
2037
2038#
2039# Vectored interrupt mode is an R2 feature
2040#
2041config CPU_MIPSR2_IRQ_VI
2042 bool
2043
2044#
2045# Extended interrupt mode is an R2 feature
2046#
2047config CPU_MIPSR2_IRQ_EI
2048 bool
2049
2050config CPU_HAS_SYNC
2051 bool
2052 depends on !CPU_R3000
2053 default y
2054
2055#
2056# CPU non-features
2057#
2058config CPU_DADDI_WORKAROUNDS
2059 bool
2060
2061config CPU_R4000_WORKAROUNDS
2062 bool
2063 select CPU_R4400_WORKAROUNDS
2064
2065config CPU_R4400_WORKAROUNDS
2066 bool
2067
2068#
2069# - Highmem only makes sense for the 32-bit kernel.
2070# - The current highmem code will only work properly on physically indexed
2071# caches such as R3000, SB1, R7000 or those that look like they're virtually
2072# indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2073# moment we protect the user and offer the highmem option only on machines
2074# where it's known to be safe. This will not offer highmem on a few systems
2075# such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2076# indexed CPUs but we're playing safe.
2077# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2078# know they might have memory configurations that could make use of highmem
2079# support.
2080#
2081config HIGHMEM
2082 bool "High Memory Support"
2083 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
2084
2085config CPU_SUPPORTS_HIGHMEM
2086 bool
2087
2088config SYS_SUPPORTS_HIGHMEM
2089 bool
2090
2091config SYS_SUPPORTS_SMARTMIPS
2092 bool
2093
2094config ARCH_FLATMEM_ENABLE
2095 def_bool y
2096 depends on !NUMA && !CPU_LOONGSON2
2097
2098config ARCH_DISCONTIGMEM_ENABLE
2099 bool
2100 default y if SGI_IP27
2101 help
2102 Say Y to support efficient handling of discontiguous physical memory,
2103 for architectures which are either NUMA (Non-Uniform Memory Access)
2104 or have huge holes in the physical address space for other reasons.
2105 See <file:Documentation/vm/numa> for more.
2106
2107config ARCH_SPARSEMEM_ENABLE
2108 bool
2109 select SPARSEMEM_STATIC
2110
2111config NUMA
2112 bool "NUMA Support"
2113 depends on SYS_SUPPORTS_NUMA
2114 help
2115 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2116 Access). This option improves performance on systems with more
2117 than two nodes; on two node systems it is generally better to
2118 leave it disabled; on single node systems disable this option
2119 disabled.
2120
2121config SYS_SUPPORTS_NUMA
2122 bool
2123
2124config NODES_SHIFT
2125 int
2126 default "6"
2127 depends on NEED_MULTIPLE_NODES
2128
2129config HW_PERF_EVENTS
2130 bool "Enable hardware performance counter support for perf events"
2131 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON)
2132 default y
2133 help
2134 Enable hardware performance counter support for perf events. If
2135 disabled, perf events will use software events only.
2136
2137source "mm/Kconfig"
2138
2139config SMP
2140 bool "Multi-Processing support"
2141 depends on SYS_SUPPORTS_SMP
2142 select IRQ_PER_CPU
2143 select USE_GENERIC_SMP_HELPERS
2144 help
2145 This enables support for systems with more than one CPU. If you have
2146 a system with only one CPU, like most personal computers, say N. If
2147 you have a system with more than one CPU, say Y.
2148
2149 If you say N here, the kernel will run on single and multiprocessor
2150 machines, but will use only one CPU of a multiprocessor machine. If
2151 you say Y here, the kernel will run on many, but not all,
2152 singleprocessor machines. On a singleprocessor machine, the kernel
2153 will run faster if you say N here.
2154
2155 People using multiprocessor machines who say Y here should also say
2156 Y to "Enhanced Real Time Clock Support", below.
2157
2158 See also the SMP-HOWTO available at
2159 <http://www.tldp.org/docs.html#howto>.
2160
2161 If you don't know what to do here, say N.
2162
2163config SMP_UP
2164 bool
2165
2166config SYS_SUPPORTS_MIPS_CMP
2167 bool
2168
2169config SYS_SUPPORTS_SMP
2170 bool
2171
2172config NR_CPUS_DEFAULT_1
2173 bool
2174
2175config NR_CPUS_DEFAULT_2
2176 bool
2177
2178config NR_CPUS_DEFAULT_4
2179 bool
2180
2181config NR_CPUS_DEFAULT_8
2182 bool
2183
2184config NR_CPUS_DEFAULT_16
2185 bool
2186
2187config NR_CPUS_DEFAULT_32
2188 bool
2189
2190config NR_CPUS_DEFAULT_64
2191 bool
2192
2193config NR_CPUS
2194 int "Maximum number of CPUs (2-64)"
2195 range 1 64 if NR_CPUS_DEFAULT_1
2196 depends on SMP
2197 default "1" if NR_CPUS_DEFAULT_1
2198 default "2" if NR_CPUS_DEFAULT_2
2199 default "4" if NR_CPUS_DEFAULT_4
2200 default "8" if NR_CPUS_DEFAULT_8
2201 default "16" if NR_CPUS_DEFAULT_16
2202 default "32" if NR_CPUS_DEFAULT_32
2203 default "64" if NR_CPUS_DEFAULT_64
2204 help
2205 This allows you to specify the maximum number of CPUs which this
2206 kernel will support. The maximum supported value is 32 for 32-bit
2207 kernel and 64 for 64-bit kernels; the minimum value which makes
2208 sense is 1 for Qemu (useful only for kernel debugging purposes)
2209 and 2 for all others.
2210
2211 This is purely to save memory - each supported CPU adds
2212 approximately eight kilobytes to the kernel image. For best
2213 performance should round up your number of processors to the next
2214 power of two.
2215
2216#
2217# Timer Interrupt Frequency Configuration
2218#
2219
2220choice
2221 prompt "Timer frequency"
2222 default HZ_250
2223 help
2224 Allows the configuration of the timer frequency.
2225
2226 config HZ_48
2227 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2228
2229 config HZ_100
2230 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2231
2232 config HZ_128
2233 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2234
2235 config HZ_250
2236 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2237
2238 config HZ_256
2239 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2240
2241 config HZ_1000
2242 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2243
2244 config HZ_1024
2245 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2246
2247endchoice
2248
2249config SYS_SUPPORTS_48HZ
2250 bool
2251
2252config SYS_SUPPORTS_100HZ
2253 bool
2254
2255config SYS_SUPPORTS_128HZ
2256 bool
2257
2258config SYS_SUPPORTS_250HZ
2259 bool
2260
2261config SYS_SUPPORTS_256HZ
2262 bool
2263
2264config SYS_SUPPORTS_1000HZ
2265 bool
2266
2267config SYS_SUPPORTS_1024HZ
2268 bool
2269
2270config SYS_SUPPORTS_ARBIT_HZ
2271 bool
2272 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2273 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2274 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2275 !SYS_SUPPORTS_1024HZ
2276
2277config HZ
2278 int
2279 default 48 if HZ_48
2280 default 100 if HZ_100
2281 default 128 if HZ_128
2282 default 250 if HZ_250
2283 default 256 if HZ_256
2284 default 1000 if HZ_1000
2285 default 1024 if HZ_1024
2286
2287source "kernel/Kconfig.preempt"
2288
2289config KEXEC
2290 bool "Kexec system call (EXPERIMENTAL)"
2291 depends on EXPERIMENTAL
2292 help
2293 kexec is a system call that implements the ability to shutdown your
2294 current kernel, and to start another kernel. It is like a reboot
2295 but it is independent of the system firmware. And like a reboot
2296 you can start any kernel with it, not just Linux.
2297
2298 The name comes from the similarity to the exec system call.
2299
2300 It is an ongoing process to be certain the hardware in a machine
2301 is properly shutdown, so do not be surprised if this code does not
2302 initially work for you. It may help to enable device hotplugging
2303 support. As of this writing the exact hardware interface is
2304 strongly in flux, so no good recommendation can be made.
2305
2306config SECCOMP
2307 bool "Enable seccomp to safely compute untrusted bytecode"
2308 depends on PROC_FS
2309 default y
2310 help
2311 This kernel feature is useful for number crunching applications
2312 that may need to compute untrusted bytecode during their
2313 execution. By using pipes or other transports made available to
2314 the process as file descriptors supporting the read/write
2315 syscalls, it's possible to isolate those applications in
2316 their own address space using seccomp. Once seccomp is
2317 enabled via /proc/<pid>/seccomp, it cannot be disabled
2318 and the task is only allowed to execute a few safe syscalls
2319 defined by each seccomp mode.
2320
2321 If unsure, say Y. Only embedded should say N here.
2322
2323config USE_OF
2324 bool "Flattened Device Tree support"
2325 select OF
2326 select OF_EARLY_FLATTREE
2327 select IRQ_DOMAIN
2328 help
2329 Include support for flattened device tree machine descriptions.
2330
2331endmenu
2332
2333config LOCKDEP_SUPPORT
2334 bool
2335 default y
2336
2337config STACKTRACE_SUPPORT
2338 bool
2339 default y
2340
2341source "init/Kconfig"
2342
2343source "kernel/Kconfig.freezer"
2344
2345menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2346
2347config HW_HAS_EISA
2348 bool
2349config HW_HAS_PCI
2350 bool
2351
2352config PCI
2353 bool "Support for PCI controller"
2354 depends on HW_HAS_PCI
2355 select PCI_DOMAINS
2356 select GENERIC_PCI_IOMAP
2357 select NO_GENERIC_PCI_IOPORT_MAP
2358 help
2359 Find out whether you have a PCI motherboard. PCI is the name of a
2360 bus system, i.e. the way the CPU talks to the other stuff inside
2361 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2362 say Y, otherwise N.
2363
2364config PCI_DOMAINS
2365 bool
2366
2367source "drivers/pci/Kconfig"
2368
2369#
2370# ISA support is now enabled via select. Too many systems still have the one
2371# or other ISA chip on the board that users don't know about so don't expect
2372# users to choose the right thing ...
2373#
2374config ISA
2375 bool
2376
2377config EISA
2378 bool "EISA support"
2379 depends on HW_HAS_EISA
2380 select ISA
2381 select GENERIC_ISA_DMA
2382 ---help---
2383 The Extended Industry Standard Architecture (EISA) bus was
2384 developed as an open alternative to the IBM MicroChannel bus.
2385
2386 The EISA bus provided some of the features of the IBM MicroChannel
2387 bus while maintaining backward compatibility with cards made for
2388 the older ISA bus. The EISA bus saw limited use between 1988 and
2389 1995 when it was made obsolete by the PCI bus.
2390
2391 Say Y here if you are building a kernel for an EISA-based machine.
2392
2393 Otherwise, say N.
2394
2395source "drivers/eisa/Kconfig"
2396
2397config TC
2398 bool "TURBOchannel support"
2399 depends on MACH_DECSTATION
2400 help
2401 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2402 processors. TURBOchannel programming specifications are available
2403 at:
2404 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2405 and:
2406 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2407 Linux driver support status is documented at:
2408 <http://www.linux-mips.org/wiki/DECstation>
2409
2410config MMU
2411 bool
2412 default y
2413
2414config I8253
2415 bool
2416 select CLKSRC_I8253
2417 select CLKEVT_I8253
2418 select MIPS_EXTERNAL_TIMER
2419
2420config ZONE_DMA32
2421 bool
2422
2423source "drivers/pcmcia/Kconfig"
2424
2425source "drivers/pci/hotplug/Kconfig"
2426
2427config RAPIDIO
2428 bool "RapidIO support"
2429 depends on PCI
2430 default n
2431 help
2432 If you say Y here, the kernel will include drivers and
2433 infrastructure code to support RapidIO interconnect devices.
2434
2435source "drivers/rapidio/Kconfig"
2436
2437endmenu
2438
2439menu "Executable file formats"
2440
2441source "fs/Kconfig.binfmt"
2442
2443config TRAD_SIGNALS
2444 bool
2445
2446config MIPS32_COMPAT
2447 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2448 depends on 64BIT
2449 help
2450 Select this option if you want Linux/MIPS 32-bit binary
2451 compatibility. Since all software available for Linux/MIPS is
2452 currently 32-bit you should say Y here.
2453
2454config COMPAT
2455 bool
2456 depends on MIPS32_COMPAT
2457 select ARCH_WANT_OLD_COMPAT_IPC
2458 default y
2459
2460config SYSVIPC_COMPAT
2461 bool
2462 depends on COMPAT && SYSVIPC
2463 default y
2464
2465config MIPS32_O32
2466 bool "Kernel support for o32 binaries"
2467 depends on MIPS32_COMPAT
2468 help
2469 Select this option if you want to run o32 binaries. These are pure
2470 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2471 existing binaries are in this format.
2472
2473 If unsure, say Y.
2474
2475config MIPS32_N32
2476 bool "Kernel support for n32 binaries"
2477 depends on MIPS32_COMPAT
2478 help
2479 Select this option if you want to run n32 binaries. These are
2480 64-bit binaries using 32-bit quantities for addressing and certain
2481 data that would normally be 64-bit. They are used in special
2482 cases.
2483
2484 If unsure, say N.
2485
2486config BINFMT_ELF32
2487 bool
2488 default y if MIPS32_O32 || MIPS32_N32
2489
2490endmenu
2491
2492menu "Power management options"
2493
2494config ARCH_HIBERNATION_POSSIBLE
2495 def_bool y
2496 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2497
2498config ARCH_SUSPEND_POSSIBLE
2499 def_bool y
2500 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2501
2502source "kernel/power/Kconfig"
2503
2504endmenu
2505
2506source "arch/mips/kernel/cpufreq/Kconfig"
2507
2508source "net/Kconfig"
2509
2510source "drivers/Kconfig"
2511
2512source "fs/Kconfig"
2513
2514source "arch/mips/Kconfig.debug"
2515
2516source "security/Kconfig"
2517
2518source "crypto/Kconfig"
2519
2520source "lib/Kconfig"