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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 HAVE_FUNCTION_TRACER
12 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
13 select HAVE_DYNAMIC_FTRACE
14 select HAVE_FTRACE_MCOUNT_RECORD
15 select HAVE_C_RECORDMCOUNT
16 select HAVE_FUNCTION_GRAPH_TRACER
17 select HAVE_KPROBES
18 select HAVE_KRETPROBES
19 select RTC_LIB if !MACH_LOONGSON
20 select GENERIC_ATOMIC64 if !64BIT
21 select HAVE_DMA_ATTRS
22 select HAVE_DMA_API_DEBUG
23 select HAVE_GENERIC_HARDIRQS
24 select GENERIC_IRQ_PROBE
25 select GENERIC_IRQ_SHOW
26 select HAVE_ARCH_JUMP_LABEL
27 select IRQ_FORCED_THREADING
28
29menu "Machine selection"
30
31config ZONE_DMA
32 bool
33
34choice
35 prompt "System type"
36 default SGI_IP22
37
38config MIPS_ALCHEMY
39 bool "Alchemy processor based machines"
40 select 64BIT_PHYS_ADDR
41 select CEVT_R4K_LIB
42 select CSRC_R4K_LIB
43 select IRQ_CPU
44 select SYS_HAS_CPU_MIPS32_R1
45 select SYS_SUPPORTS_32BIT_KERNEL
46 select SYS_SUPPORTS_APM_EMULATION
47 select GENERIC_GPIO
48 select ARCH_WANT_OPTIONAL_GPIOLIB
49 select SYS_SUPPORTS_ZBOOT
50
51config AR7
52 bool "Texas Instruments AR7"
53 select BOOT_ELF32
54 select DMA_NONCOHERENT
55 select CEVT_R4K
56 select CSRC_R4K
57 select IRQ_CPU
58 select NO_EXCEPT_FILL
59 select SWAP_IO_SPACE
60 select SYS_HAS_CPU_MIPS32_R1
61 select SYS_HAS_EARLY_PRINTK
62 select SYS_SUPPORTS_32BIT_KERNEL
63 select SYS_SUPPORTS_LITTLE_ENDIAN
64 select SYS_SUPPORTS_ZBOOT_UART16550
65 select ARCH_REQUIRE_GPIOLIB
66 select GCD
67 select VLYNQ
68 help
69 Support for the Texas Instruments AR7 System-on-a-Chip
70 family: TNETD7100, 7200 and 7300.
71
72config ATH79
73 bool "Atheros AR71XX/AR724X/AR913X based boards"
74 select ARCH_REQUIRE_GPIOLIB
75 select BOOT_RAW
76 select CEVT_R4K
77 select CSRC_R4K
78 select DMA_NONCOHERENT
79 select IRQ_CPU
80 select MIPS_MACHINE
81 select SYS_HAS_CPU_MIPS32_R2
82 select SYS_HAS_EARLY_PRINTK
83 select SYS_SUPPORTS_32BIT_KERNEL
84 select SYS_SUPPORTS_BIG_ENDIAN
85 help
86 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
87
88config BCM47XX
89 bool "Broadcom BCM47XX based boards"
90 select CEVT_R4K
91 select CSRC_R4K
92 select DMA_NONCOHERENT
93 select HW_HAS_PCI
94 select IRQ_CPU
95 select SYS_HAS_CPU_MIPS32_R1
96 select SYS_SUPPORTS_32BIT_KERNEL
97 select SYS_SUPPORTS_LITTLE_ENDIAN
98 select SSB
99 select SSB_DRIVER_MIPS
100 select SSB_DRIVER_EXTIF
101 select SSB_EMBEDDED
102 select SSB_B43_PCI_BRIDGE if PCI
103 select SSB_PCICORE_HOSTMODE if PCI
104 select GENERIC_GPIO
105 select SYS_HAS_EARLY_PRINTK
106 select CFE
107 help
108 Support for BCM47XX based boards
109
110config BCM63XX
111 bool "Broadcom BCM63XX based boards"
112 select CEVT_R4K
113 select CSRC_R4K
114 select DMA_NONCOHERENT
115 select IRQ_CPU
116 select SYS_HAS_CPU_MIPS32_R1
117 select SYS_SUPPORTS_32BIT_KERNEL
118 select SYS_SUPPORTS_BIG_ENDIAN
119 select SYS_HAS_EARLY_PRINTK
120 select SWAP_IO_SPACE
121 select ARCH_REQUIRE_GPIOLIB
122 help
123 Support for BCM63XX based boards
124
125config MIPS_COBALT
126 bool "Cobalt Server"
127 select CEVT_R4K
128 select CSRC_R4K
129 select CEVT_GT641XX
130 select DMA_NONCOHERENT
131 select HW_HAS_PCI
132 select I8253
133 select I8259
134 select IRQ_CPU
135 select IRQ_GT641XX
136 select PCI_GT64XXX_PCI0
137 select PCI
138 select SYS_HAS_CPU_NEVADA
139 select SYS_HAS_EARLY_PRINTK
140 select SYS_SUPPORTS_32BIT_KERNEL
141 select SYS_SUPPORTS_64BIT_KERNEL
142 select SYS_SUPPORTS_LITTLE_ENDIAN
143
144config MACH_DECSTATION
145 bool "DECstations"
146 select BOOT_ELF32
147 select CEVT_DS1287
148 select CEVT_R4K
149 select CSRC_IOASIC
150 select CSRC_R4K
151 select CPU_DADDI_WORKAROUNDS if 64BIT
152 select CPU_R4000_WORKAROUNDS if 64BIT
153 select CPU_R4400_WORKAROUNDS if 64BIT
154 select DMA_NONCOHERENT
155 select NO_IOPORT
156 select IRQ_CPU
157 select SYS_HAS_CPU_R3000
158 select SYS_HAS_CPU_R4X00
159 select SYS_SUPPORTS_32BIT_KERNEL
160 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
161 select SYS_SUPPORTS_LITTLE_ENDIAN
162 select SYS_SUPPORTS_128HZ
163 select SYS_SUPPORTS_256HZ
164 select SYS_SUPPORTS_1024HZ
165 help
166 This enables support for DEC's MIPS based workstations. For details
167 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
168 DECstation porting pages on <http://decstation.unix-ag.org/>.
169
170 If you have one of the following DECstation Models you definitely
171 want to choose R4xx0 for the CPU Type:
172
173 DECstation 5000/50
174 DECstation 5000/150
175 DECstation 5000/260
176 DECsystem 5900/260
177
178 otherwise choose R3000.
179
180config MACH_JAZZ
181 bool "Jazz family of machines"
182 select ARC
183 select ARC32
184 select ARCH_MAY_HAVE_PC_FDC
185 select CEVT_R4K
186 select CSRC_R4K
187 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
188 select GENERIC_ISA_DMA
189 select HAVE_PCSPKR_PLATFORM
190 select IRQ_CPU
191 select I8253
192 select I8259
193 select ISA
194 select SYS_HAS_CPU_R4X00
195 select SYS_SUPPORTS_32BIT_KERNEL
196 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
197 select SYS_SUPPORTS_100HZ
198 help
199 This a family of machines based on the MIPS R4030 chipset which was
200 used by several vendors to build RISC/os and Windows NT workstations.
201 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
202 Olivetti M700-10 workstations.
203
204config MACH_JZ4740
205 bool "Ingenic JZ4740 based machines"
206 select SYS_HAS_CPU_MIPS32_R1
207 select SYS_SUPPORTS_32BIT_KERNEL
208 select SYS_SUPPORTS_LITTLE_ENDIAN
209 select DMA_NONCOHERENT
210 select IRQ_CPU
211 select GENERIC_GPIO
212 select ARCH_REQUIRE_GPIOLIB
213 select SYS_HAS_EARLY_PRINTK
214 select HAVE_PWM
215 select HAVE_CLK
216
217config LANTIQ
218 bool "Lantiq based platforms"
219 select DMA_NONCOHERENT
220 select IRQ_CPU
221 select CEVT_R4K
222 select CSRC_R4K
223 select SYS_HAS_CPU_MIPS32_R1
224 select SYS_HAS_CPU_MIPS32_R2
225 select SYS_SUPPORTS_BIG_ENDIAN
226 select SYS_SUPPORTS_32BIT_KERNEL
227 select SYS_SUPPORTS_MULTITHREADING
228 select SYS_HAS_EARLY_PRINTK
229 select ARCH_REQUIRE_GPIOLIB
230 select SWAP_IO_SPACE
231 select BOOT_RAW
232 select HAVE_CLK
233 select MIPS_MACHINE
234
235config LASAT
236 bool "LASAT Networks platforms"
237 select CEVT_R4K
238 select CSRC_R4K
239 select DMA_NONCOHERENT
240 select SYS_HAS_EARLY_PRINTK
241 select HW_HAS_PCI
242 select IRQ_CPU
243 select PCI_GT64XXX_PCI0
244 select MIPS_NILE4
245 select R5000_CPU_SCACHE
246 select SYS_HAS_CPU_R5000
247 select SYS_SUPPORTS_32BIT_KERNEL
248 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
249 select SYS_SUPPORTS_LITTLE_ENDIAN
250
251config MACH_LOONGSON
252 bool "Loongson family of machines"
253 select SYS_SUPPORTS_ZBOOT
254 help
255 This enables the support of Loongson family of machines.
256
257 Loongson is a family of general-purpose MIPS-compatible CPUs.
258 developed at Institute of Computing Technology (ICT),
259 Chinese Academy of Sciences (CAS) in the People's Republic
260 of China. The chief architect is Professor Weiwu Hu.
261
262config MIPS_MALTA
263 bool "MIPS Malta board"
264 select ARCH_MAY_HAVE_PC_FDC
265 select BOOT_ELF32
266 select BOOT_RAW
267 select CEVT_R4K
268 select CSRC_R4K
269 select DMA_NONCOHERENT
270 select GENERIC_ISA_DMA
271 select HAVE_PCSPKR_PLATFORM
272 select IRQ_CPU
273 select IRQ_GIC
274 select HW_HAS_PCI
275 select I8253
276 select I8259
277 select MIPS_BOARDS_GEN
278 select MIPS_BONITO64
279 select MIPS_CPU_SCACHE
280 select PCI_GT64XXX_PCI0
281 select MIPS_MSC
282 select SWAP_IO_SPACE
283 select SYS_HAS_CPU_MIPS32_R1
284 select SYS_HAS_CPU_MIPS32_R2
285 select SYS_HAS_CPU_MIPS64_R1
286 select SYS_HAS_CPU_NEVADA
287 select SYS_HAS_CPU_RM7000
288 select SYS_HAS_EARLY_PRINTK
289 select SYS_SUPPORTS_32BIT_KERNEL
290 select SYS_SUPPORTS_64BIT_KERNEL
291 select SYS_SUPPORTS_BIG_ENDIAN
292 select SYS_SUPPORTS_LITTLE_ENDIAN
293 select SYS_SUPPORTS_MIPS_CMP
294 select SYS_SUPPORTS_MULTITHREADING
295 select SYS_SUPPORTS_SMARTMIPS
296 select SYS_SUPPORTS_ZBOOT
297 help
298 This enables support for the MIPS Technologies Malta evaluation
299 board.
300
301config MIPS_SIM
302 bool 'MIPS simulator (MIPSsim)'
303 select CEVT_R4K
304 select CSRC_R4K
305 select DMA_NONCOHERENT
306 select SYS_HAS_EARLY_PRINTK
307 select IRQ_CPU
308 select BOOT_RAW
309 select SYS_HAS_CPU_MIPS32_R1
310 select SYS_HAS_CPU_MIPS32_R2
311 select SYS_HAS_EARLY_PRINTK
312 select SYS_SUPPORTS_32BIT_KERNEL
313 select SYS_SUPPORTS_BIG_ENDIAN
314 select SYS_SUPPORTS_MULTITHREADING
315 select SYS_SUPPORTS_LITTLE_ENDIAN
316 help
317 This option enables support for MIPS Technologies MIPSsim software
318 emulator.
319
320config NEC_MARKEINS
321 bool "NEC EMMA2RH Mark-eins board"
322 select SOC_EMMA2RH
323 select HW_HAS_PCI
324 help
325 This enables support for the NEC Electronics Mark-eins boards.
326
327config MACH_VR41XX
328 bool "NEC VR4100 series based machines"
329 select CEVT_R4K
330 select CSRC_R4K
331 select SYS_HAS_CPU_VR41XX
332 select ARCH_REQUIRE_GPIOLIB
333
334config NXP_STB220
335 bool "NXP STB220 board"
336 select SOC_PNX833X
337 help
338 Support for NXP Semiconductors STB220 Development Board.
339
340config NXP_STB225
341 bool "NXP 225 board"
342 select SOC_PNX833X
343 select SOC_PNX8335
344 help
345 Support for NXP Semiconductors STB225 Development Board.
346
347config PNX8550_JBS
348 bool "NXP PNX8550 based JBS board"
349 select PNX8550
350 select SYS_SUPPORTS_LITTLE_ENDIAN
351
352config PNX8550_STB810
353 bool "NXP PNX8550 based STB810 board"
354 select PNX8550
355 select SYS_SUPPORTS_LITTLE_ENDIAN
356
357config PMC_MSP
358 bool "PMC-Sierra MSP chipsets"
359 depends on EXPERIMENTAL
360 select CEVT_R4K
361 select CSRC_R4K
362 select DMA_NONCOHERENT
363 select SWAP_IO_SPACE
364 select NO_EXCEPT_FILL
365 select BOOT_RAW
366 select SYS_HAS_CPU_MIPS32_R1
367 select SYS_HAS_CPU_MIPS32_R2
368 select SYS_SUPPORTS_32BIT_KERNEL
369 select SYS_SUPPORTS_BIG_ENDIAN
370 select IRQ_CPU
371 select SERIAL_8250
372 select SERIAL_8250_CONSOLE
373 help
374 This adds support for the PMC-Sierra family of Multi-Service
375 Processor System-On-A-Chips. These parts include a number
376 of integrated peripherals, interfaces and DSPs in addition to
377 a variety of MIPS cores.
378
379config PMC_YOSEMITE
380 bool "PMC-Sierra Yosemite eval board"
381 select CEVT_R4K
382 select CSRC_R4K
383 select DMA_COHERENT
384 select HW_HAS_PCI
385 select IRQ_CPU
386 select IRQ_CPU_RM7K
387 select IRQ_CPU_RM9K
388 select SWAP_IO_SPACE
389 select SYS_HAS_CPU_RM9000
390 select SYS_HAS_EARLY_PRINTK
391 select SYS_SUPPORTS_32BIT_KERNEL
392 select SYS_SUPPORTS_64BIT_KERNEL
393 select SYS_SUPPORTS_BIG_ENDIAN
394 select SYS_SUPPORTS_HIGHMEM
395 select SYS_SUPPORTS_SMP
396 help
397 Yosemite is an evaluation board for the RM9000x2 processor
398 manufactured by PMC-Sierra.
399
400config POWERTV
401 bool "Cisco PowerTV"
402 select BOOT_ELF32
403 select CEVT_R4K
404 select CPU_MIPSR2_IRQ_VI
405 select CPU_MIPSR2_IRQ_EI
406 select CSRC_POWERTV
407 select DMA_NONCOHERENT
408 select HW_HAS_PCI
409 select SYS_HAS_EARLY_PRINTK
410 select SYS_HAS_CPU_MIPS32_R2
411 select SYS_SUPPORTS_32BIT_KERNEL
412 select SYS_SUPPORTS_BIG_ENDIAN
413 select SYS_SUPPORTS_HIGHMEM
414 select USB_OHCI_LITTLE_ENDIAN
415 help
416 This enables support for the Cisco PowerTV Platform.
417
418config SGI_IP22
419 bool "SGI IP22 (Indy/Indigo2)"
420 select ARC
421 select ARC32
422 select BOOT_ELF32
423 select CEVT_R4K
424 select CSRC_R4K
425 select DEFAULT_SGI_PARTITION
426 select DMA_NONCOHERENT
427 select HW_HAS_EISA
428 select I8253
429 select I8259
430 select IP22_CPU_SCACHE
431 select IRQ_CPU
432 select GENERIC_ISA_DMA_SUPPORT_BROKEN
433 select SGI_HAS_I8042
434 select SGI_HAS_INDYDOG
435 select SGI_HAS_HAL2
436 select SGI_HAS_SEEQ
437 select SGI_HAS_WD93
438 select SGI_HAS_ZILOG
439 select SWAP_IO_SPACE
440 select SYS_HAS_CPU_R4X00
441 select SYS_HAS_CPU_R5000
442 #
443 # Disable EARLY_PRINTK for now since it leads to overwritten prom
444 # memory during early boot on some machines.
445 #
446 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
447 # for a more details discussion
448 #
449 # select SYS_HAS_EARLY_PRINTK
450 select SYS_SUPPORTS_32BIT_KERNEL
451 select SYS_SUPPORTS_64BIT_KERNEL
452 select SYS_SUPPORTS_BIG_ENDIAN
453 help
454 This are the SGI Indy, Challenge S and Indigo2, as well as certain
455 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
456 that runs on these, say Y here.
457
458config SGI_IP27
459 bool "SGI IP27 (Origin200/2000)"
460 select ARC
461 select ARC64
462 select BOOT_ELF64
463 select DEFAULT_SGI_PARTITION
464 select DMA_COHERENT
465 select SYS_HAS_EARLY_PRINTK
466 select HW_HAS_PCI
467 select NR_CPUS_DEFAULT_64
468 select SYS_HAS_CPU_R10000
469 select SYS_SUPPORTS_64BIT_KERNEL
470 select SYS_SUPPORTS_BIG_ENDIAN
471 select SYS_SUPPORTS_NUMA
472 select SYS_SUPPORTS_SMP
473 help
474 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
475 workstations. To compile a Linux kernel that runs on these, say Y
476 here.
477
478config SGI_IP28
479 bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
480 depends on EXPERIMENTAL
481 select ARC
482 select ARC64
483 select BOOT_ELF64
484 select CEVT_R4K
485 select CSRC_R4K
486 select DEFAULT_SGI_PARTITION
487 select DMA_NONCOHERENT
488 select GENERIC_ISA_DMA_SUPPORT_BROKEN
489 select IRQ_CPU
490 select HW_HAS_EISA
491 select I8253
492 select I8259
493 select SGI_HAS_I8042
494 select SGI_HAS_INDYDOG
495 select SGI_HAS_HAL2
496 select SGI_HAS_SEEQ
497 select SGI_HAS_WD93
498 select SGI_HAS_ZILOG
499 select SWAP_IO_SPACE
500 select SYS_HAS_CPU_R10000
501 #
502 # Disable EARLY_PRINTK for now since it leads to overwritten prom
503 # memory during early boot on some machines.
504 #
505 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
506 # for a more details discussion
507 #
508 # select SYS_HAS_EARLY_PRINTK
509 select SYS_SUPPORTS_64BIT_KERNEL
510 select SYS_SUPPORTS_BIG_ENDIAN
511 help
512 This is the SGI Indigo2 with R10000 processor. To compile a Linux
513 kernel that runs on these, say Y here.
514
515config SGI_IP32
516 bool "SGI IP32 (O2)"
517 select ARC
518 select ARC32
519 select BOOT_ELF32
520 select CEVT_R4K
521 select CSRC_R4K
522 select DMA_NONCOHERENT
523 select HW_HAS_PCI
524 select IRQ_CPU
525 select R5000_CPU_SCACHE
526 select RM7000_CPU_SCACHE
527 select SYS_HAS_CPU_R5000
528 select SYS_HAS_CPU_R10000 if BROKEN
529 select SYS_HAS_CPU_RM7000
530 select SYS_HAS_CPU_NEVADA
531 select SYS_SUPPORTS_64BIT_KERNEL
532 select SYS_SUPPORTS_BIG_ENDIAN
533 help
534 If you want this kernel to run on SGI O2 workstation, say Y here.
535
536config SIBYTE_CRHINE
537 bool "Sibyte BCM91120C-CRhine"
538 depends on EXPERIMENTAL
539 select BOOT_ELF32
540 select DMA_COHERENT
541 select SIBYTE_BCM1120
542 select SWAP_IO_SPACE
543 select SYS_HAS_CPU_SB1
544 select SYS_SUPPORTS_BIG_ENDIAN
545 select SYS_SUPPORTS_LITTLE_ENDIAN
546
547config SIBYTE_CARMEL
548 bool "Sibyte BCM91120x-Carmel"
549 depends on EXPERIMENTAL
550 select BOOT_ELF32
551 select DMA_COHERENT
552 select SIBYTE_BCM1120
553 select SWAP_IO_SPACE
554 select SYS_HAS_CPU_SB1
555 select SYS_SUPPORTS_BIG_ENDIAN
556 select SYS_SUPPORTS_LITTLE_ENDIAN
557
558config SIBYTE_CRHONE
559 bool "Sibyte BCM91125C-CRhone"
560 depends on EXPERIMENTAL
561 select BOOT_ELF32
562 select DMA_COHERENT
563 select SIBYTE_BCM1125
564 select SWAP_IO_SPACE
565 select SYS_HAS_CPU_SB1
566 select SYS_SUPPORTS_BIG_ENDIAN
567 select SYS_SUPPORTS_HIGHMEM
568 select SYS_SUPPORTS_LITTLE_ENDIAN
569
570config SIBYTE_RHONE
571 bool "Sibyte BCM91125E-Rhone"
572 depends on EXPERIMENTAL
573 select BOOT_ELF32
574 select DMA_COHERENT
575 select SIBYTE_BCM1125H
576 select SWAP_IO_SPACE
577 select SYS_HAS_CPU_SB1
578 select SYS_SUPPORTS_BIG_ENDIAN
579 select SYS_SUPPORTS_LITTLE_ENDIAN
580
581config SIBYTE_SWARM
582 bool "Sibyte BCM91250A-SWARM"
583 select BOOT_ELF32
584 select DMA_COHERENT
585 select HAVE_PATA_PLATFORM
586 select NR_CPUS_DEFAULT_2
587 select SIBYTE_SB1250
588 select SWAP_IO_SPACE
589 select SYS_HAS_CPU_SB1
590 select SYS_SUPPORTS_BIG_ENDIAN
591 select SYS_SUPPORTS_HIGHMEM
592 select SYS_SUPPORTS_LITTLE_ENDIAN
593 select ZONE_DMA32 if 64BIT
594
595config SIBYTE_LITTLESUR
596 bool "Sibyte BCM91250C2-LittleSur"
597 depends on EXPERIMENTAL
598 select BOOT_ELF32
599 select DMA_COHERENT
600 select HAVE_PATA_PLATFORM
601 select NR_CPUS_DEFAULT_2
602 select SIBYTE_SB1250
603 select SWAP_IO_SPACE
604 select SYS_HAS_CPU_SB1
605 select SYS_SUPPORTS_BIG_ENDIAN
606 select SYS_SUPPORTS_HIGHMEM
607 select SYS_SUPPORTS_LITTLE_ENDIAN
608
609config SIBYTE_SENTOSA
610 bool "Sibyte BCM91250E-Sentosa"
611 depends on EXPERIMENTAL
612 select BOOT_ELF32
613 select DMA_COHERENT
614 select NR_CPUS_DEFAULT_2
615 select SIBYTE_SB1250
616 select SWAP_IO_SPACE
617 select SYS_HAS_CPU_SB1
618 select SYS_SUPPORTS_BIG_ENDIAN
619 select SYS_SUPPORTS_LITTLE_ENDIAN
620
621config SIBYTE_BIGSUR
622 bool "Sibyte BCM91480B-BigSur"
623 select BOOT_ELF32
624 select DMA_COHERENT
625 select NR_CPUS_DEFAULT_4
626 select SIBYTE_BCM1x80
627 select SWAP_IO_SPACE
628 select SYS_HAS_CPU_SB1
629 select SYS_SUPPORTS_BIG_ENDIAN
630 select SYS_SUPPORTS_HIGHMEM
631 select SYS_SUPPORTS_LITTLE_ENDIAN
632 select ZONE_DMA32 if 64BIT
633
634config SNI_RM
635 bool "SNI RM200/300/400"
636 select ARC if CPU_LITTLE_ENDIAN
637 select ARC32 if CPU_LITTLE_ENDIAN
638 select SNIPROM if CPU_BIG_ENDIAN
639 select ARCH_MAY_HAVE_PC_FDC
640 select BOOT_ELF32
641 select CEVT_R4K
642 select CSRC_R4K
643 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
644 select DMA_NONCOHERENT
645 select GENERIC_ISA_DMA
646 select HAVE_PCSPKR_PLATFORM
647 select HW_HAS_EISA
648 select HW_HAS_PCI
649 select IRQ_CPU
650 select I8253
651 select I8259
652 select ISA
653 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
654 select SYS_HAS_CPU_R4X00
655 select SYS_HAS_CPU_R5000
656 select SYS_HAS_CPU_R10000
657 select R5000_CPU_SCACHE
658 select SYS_HAS_EARLY_PRINTK
659 select SYS_SUPPORTS_32BIT_KERNEL
660 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
661 select SYS_SUPPORTS_BIG_ENDIAN
662 select SYS_SUPPORTS_HIGHMEM
663 select SYS_SUPPORTS_LITTLE_ENDIAN
664 help
665 The SNI RM200/300/400 are MIPS-based machines manufactured by
666 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
667 Technology and now in turn merged with Fujitsu. Say Y here to
668 support this machine type.
669
670config MACH_TX39XX
671 bool "Toshiba TX39 series based machines"
672
673config MACH_TX49XX
674 bool "Toshiba TX49 series based machines"
675
676config MIKROTIK_RB532
677 bool "Mikrotik RB532 boards"
678 select CEVT_R4K
679 select CSRC_R4K
680 select DMA_NONCOHERENT
681 select HW_HAS_PCI
682 select IRQ_CPU
683 select SYS_HAS_CPU_MIPS32_R1
684 select SYS_SUPPORTS_32BIT_KERNEL
685 select SYS_SUPPORTS_LITTLE_ENDIAN
686 select SWAP_IO_SPACE
687 select BOOT_RAW
688 select ARCH_REQUIRE_GPIOLIB
689 help
690 Support the Mikrotik(tm) RouterBoard 532 series,
691 based on the IDT RC32434 SoC.
692
693config WR_PPMC
694 bool "Wind River PPMC board"
695 select CEVT_R4K
696 select CSRC_R4K
697 select IRQ_CPU
698 select BOOT_ELF32
699 select DMA_NONCOHERENT
700 select HW_HAS_PCI
701 select PCI_GT64XXX_PCI0
702 select SWAP_IO_SPACE
703 select SYS_HAS_CPU_MIPS32_R1
704 select SYS_HAS_CPU_MIPS32_R2
705 select SYS_HAS_CPU_MIPS64_R1
706 select SYS_HAS_CPU_NEVADA
707 select SYS_HAS_CPU_RM7000
708 select SYS_SUPPORTS_32BIT_KERNEL
709 select SYS_SUPPORTS_64BIT_KERNEL
710 select SYS_SUPPORTS_BIG_ENDIAN
711 select SYS_SUPPORTS_LITTLE_ENDIAN
712 help
713 This enables support for the Wind River MIPS32 4KC PPMC evaluation
714 board, which is based on GT64120 bridge chip.
715
716config CAVIUM_OCTEON_SIMULATOR
717 bool "Cavium Networks Octeon Simulator"
718 select CEVT_R4K
719 select 64BIT_PHYS_ADDR
720 select DMA_COHERENT
721 select SYS_SUPPORTS_64BIT_KERNEL
722 select SYS_SUPPORTS_BIG_ENDIAN
723 select SYS_SUPPORTS_HIGHMEM
724 select SYS_SUPPORTS_HOTPLUG_CPU
725 select SYS_HAS_CPU_CAVIUM_OCTEON
726 select HOLES_IN_ZONE
727 help
728 The Octeon simulator is software performance model of the Cavium
729 Octeon Processor. It supports simulating Octeon processors on x86
730 hardware.
731
732config CAVIUM_OCTEON_REFERENCE_BOARD
733 bool "Cavium Networks Octeon reference board"
734 select CEVT_R4K
735 select 64BIT_PHYS_ADDR
736 select DMA_COHERENT
737 select SYS_SUPPORTS_64BIT_KERNEL
738 select SYS_SUPPORTS_BIG_ENDIAN
739 select SYS_SUPPORTS_HIGHMEM
740 select SYS_SUPPORTS_HOTPLUG_CPU
741 select SYS_HAS_EARLY_PRINTK
742 select SYS_HAS_CPU_CAVIUM_OCTEON
743 select SWAP_IO_SPACE
744 select HW_HAS_PCI
745 select ARCH_SUPPORTS_MSI
746 select ZONE_DMA32
747 select USB_ARCH_HAS_OHCI
748 select USB_ARCH_HAS_EHCI
749 select HOLES_IN_ZONE
750 help
751 This option supports all of the Octeon reference boards from Cavium
752 Networks. It builds a kernel that dynamically determines the Octeon
753 CPU type and supports all known board reference implementations.
754 Some of the supported boards are:
755 EBT3000
756 EBH3000
757 EBH3100
758 Thunder
759 Kodama
760 Hikari
761 Say Y here for most Octeon reference boards.
762
763config NLM_XLR_BOARD
764 bool "Netlogic XLR/XLS based systems"
765 depends on EXPERIMENTAL
766 select BOOT_ELF32
767 select NLM_COMMON
768 select NLM_XLR
769 select SYS_HAS_CPU_XLR
770 select SYS_SUPPORTS_SMP
771 select HW_HAS_PCI
772 select SWAP_IO_SPACE
773 select SYS_SUPPORTS_32BIT_KERNEL
774 select SYS_SUPPORTS_64BIT_KERNEL
775 select 64BIT_PHYS_ADDR
776 select SYS_SUPPORTS_BIG_ENDIAN
777 select SYS_SUPPORTS_HIGHMEM
778 select DMA_COHERENT
779 select NR_CPUS_DEFAULT_32
780 select CEVT_R4K
781 select CSRC_R4K
782 select IRQ_CPU
783 select ZONE_DMA if 64BIT
784 select SYNC_R4K
785 select SYS_HAS_EARLY_PRINTK
786 help
787 Support for systems based on Netlogic XLR and XLS processors.
788 Say Y here if you have a XLR or XLS based board.
789
790endchoice
791
792source "arch/mips/alchemy/Kconfig"
793source "arch/mips/ath79/Kconfig"
794source "arch/mips/bcm63xx/Kconfig"
795source "arch/mips/jazz/Kconfig"
796source "arch/mips/jz4740/Kconfig"
797source "arch/mips/lantiq/Kconfig"
798source "arch/mips/lasat/Kconfig"
799source "arch/mips/pmc-sierra/Kconfig"
800source "arch/mips/powertv/Kconfig"
801source "arch/mips/sgi-ip27/Kconfig"
802source "arch/mips/sibyte/Kconfig"
803source "arch/mips/txx9/Kconfig"
804source "arch/mips/vr41xx/Kconfig"
805source "arch/mips/cavium-octeon/Kconfig"
806source "arch/mips/loongson/Kconfig"
807source "arch/mips/netlogic/Kconfig"
808
809endmenu
810
811config RWSEM_GENERIC_SPINLOCK
812 bool
813 default y
814
815config RWSEM_XCHGADD_ALGORITHM
816 bool
817
818config ARCH_HAS_ILOG2_U32
819 bool
820 default n
821
822config ARCH_HAS_ILOG2_U64
823 bool
824 default n
825
826config ARCH_SUPPORTS_OPROFILE
827 bool
828 default y if !MIPS_MT_SMTC
829
830config GENERIC_HWEIGHT
831 bool
832 default y
833
834config GENERIC_CALIBRATE_DELAY
835 bool
836 default y
837
838config GENERIC_CLOCKEVENTS
839 bool
840 default y
841
842config GENERIC_CMOS_UPDATE
843 bool
844 default y
845
846config SCHED_OMIT_FRAME_POINTER
847 bool
848 default y
849
850#
851# Select some configuration options automatically based on user selections.
852#
853config ARC
854 bool
855
856config ARCH_MAY_HAVE_PC_FDC
857 bool
858
859config BOOT_RAW
860 bool
861
862config CEVT_BCM1480
863 bool
864
865config CEVT_DS1287
866 bool
867
868config CEVT_GT641XX
869 bool
870
871config CEVT_R4K_LIB
872 bool
873
874config CEVT_R4K
875 select CEVT_R4K_LIB
876 bool
877
878config CEVT_SB1250
879 bool
880
881config CEVT_TXX9
882 bool
883
884config CSRC_BCM1480
885 bool
886
887config CSRC_IOASIC
888 bool
889
890config CSRC_POWERTV
891 bool
892
893config CSRC_R4K_LIB
894 bool
895
896config CSRC_R4K
897 select CSRC_R4K_LIB
898 bool
899
900config CSRC_SB1250
901 bool
902
903config GPIO_TXX9
904 select GENERIC_GPIO
905 select ARCH_REQUIRE_GPIOLIB
906 bool
907
908config CFE
909 bool
910
911config ARCH_DMA_ADDR_T_64BIT
912 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
913
914config DMA_COHERENT
915 bool
916
917config DMA_NONCOHERENT
918 bool
919 select NEED_DMA_MAP_STATE
920
921config NEED_DMA_MAP_STATE
922 bool
923
924config SYS_HAS_EARLY_PRINTK
925 bool
926
927config HOTPLUG_CPU
928 bool "Support for hot-pluggable CPUs"
929 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
930 help
931 Say Y here to allow turning CPUs off and on. CPUs can be
932 controlled through /sys/devices/system/cpu.
933 (Note: power management support will enable this option
934 automatically on SMP systems. )
935 Say N if you want to disable CPU hotplug.
936
937config SYS_SUPPORTS_HOTPLUG_CPU
938 bool
939
940config I8259
941 bool
942
943config MIPS_BONITO64
944 bool
945
946config MIPS_MSC
947 bool
948
949config MIPS_NILE4
950 bool
951
952config MIPS_DISABLE_OBSOLETE_IDE
953 bool
954
955config SYNC_R4K
956 bool
957
958config MIPS_MACHINE
959 def_bool n
960
961config NO_IOPORT
962 def_bool n
963
964config GENERIC_ISA_DMA
965 bool
966 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
967 select ISA_DMA_API
968
969config GENERIC_ISA_DMA_SUPPORT_BROKEN
970 bool
971 select GENERIC_ISA_DMA
972
973config ISA_DMA_API
974 bool
975
976config GENERIC_GPIO
977 bool
978
979config HOLES_IN_ZONE
980 bool
981
982#
983# Endianess selection. Sufficiently obscure so many users don't know what to
984# answer,so we try hard to limit the available choices. Also the use of a
985# choice statement should be more obvious to the user.
986#
987choice
988 prompt "Endianess selection"
989 help
990 Some MIPS machines can be configured for either little or big endian
991 byte order. These modes require different kernels and a different
992 Linux distribution. In general there is one preferred byteorder for a
993 particular system but some systems are just as commonly used in the
994 one or the other endianness.
995
996config CPU_BIG_ENDIAN
997 bool "Big endian"
998 depends on SYS_SUPPORTS_BIG_ENDIAN
999
1000config CPU_LITTLE_ENDIAN
1001 bool "Little endian"
1002 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1003 help
1004
1005endchoice
1006
1007config EXPORT_UASM
1008 bool
1009
1010config SYS_SUPPORTS_APM_EMULATION
1011 bool
1012
1013config SYS_SUPPORTS_BIG_ENDIAN
1014 bool
1015
1016config SYS_SUPPORTS_LITTLE_ENDIAN
1017 bool
1018
1019config SYS_SUPPORTS_HUGETLBFS
1020 bool
1021 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1022 default y
1023
1024config IRQ_CPU
1025 bool
1026
1027config IRQ_CPU_RM7K
1028 bool
1029
1030config IRQ_CPU_RM9K
1031 bool
1032
1033config IRQ_MSP_SLP
1034 bool
1035
1036config IRQ_MSP_CIC
1037 bool
1038
1039config IRQ_TXX9
1040 bool
1041
1042config IRQ_GT641XX
1043 bool
1044
1045config IRQ_GIC
1046 bool
1047
1048config MIPS_BOARDS_GEN
1049 bool
1050
1051config PCI_GT64XXX_PCI0
1052 bool
1053
1054config NO_EXCEPT_FILL
1055 bool
1056
1057config MIPS_RM9122
1058 bool
1059 select SERIAL_RM9000
1060
1061config SOC_EMMA2RH
1062 bool
1063 select CEVT_R4K
1064 select CSRC_R4K
1065 select DMA_NONCOHERENT
1066 select IRQ_CPU
1067 select SWAP_IO_SPACE
1068 select SYS_HAS_CPU_R5500
1069 select SYS_SUPPORTS_32BIT_KERNEL
1070 select SYS_SUPPORTS_64BIT_KERNEL
1071 select SYS_SUPPORTS_BIG_ENDIAN
1072
1073config SOC_PNX833X
1074 bool
1075 select CEVT_R4K
1076 select CSRC_R4K
1077 select IRQ_CPU
1078 select DMA_NONCOHERENT
1079 select SYS_HAS_CPU_MIPS32_R2
1080 select SYS_SUPPORTS_32BIT_KERNEL
1081 select SYS_SUPPORTS_LITTLE_ENDIAN
1082 select SYS_SUPPORTS_BIG_ENDIAN
1083 select GENERIC_GPIO
1084 select CPU_MIPSR2_IRQ_VI
1085
1086config SOC_PNX8335
1087 bool
1088 select SOC_PNX833X
1089
1090config PNX8550
1091 bool
1092 select SOC_PNX8550
1093
1094config SOC_PNX8550
1095 bool
1096 select DMA_NONCOHERENT
1097 select HW_HAS_PCI
1098 select SYS_HAS_CPU_MIPS32_R1
1099 select SYS_HAS_EARLY_PRINTK
1100 select SYS_SUPPORTS_32BIT_KERNEL
1101 select GENERIC_GPIO
1102
1103config SWAP_IO_SPACE
1104 bool
1105
1106config SERIAL_RM9000
1107 bool
1108
1109config SGI_HAS_INDYDOG
1110 bool
1111
1112config SGI_HAS_HAL2
1113 bool
1114
1115config SGI_HAS_SEEQ
1116 bool
1117
1118config SGI_HAS_WD93
1119 bool
1120
1121config SGI_HAS_ZILOG
1122 bool
1123
1124config SGI_HAS_I8042
1125 bool
1126
1127config DEFAULT_SGI_PARTITION
1128 bool
1129
1130config ARC32
1131 bool
1132
1133config SNIPROM
1134 bool
1135
1136config BOOT_ELF32
1137 bool
1138
1139config MIPS_L1_CACHE_SHIFT
1140 int
1141 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
1142 default "6" if MIPS_CPU_SCACHE
1143 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1144 default "5"
1145
1146config HAVE_STD_PC_SERIAL_PORT
1147 bool
1148
1149config ARC_CONSOLE
1150 bool "ARC console support"
1151 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1152
1153config ARC_MEMORY
1154 bool
1155 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1156 default y
1157
1158config ARC_PROMLIB
1159 bool
1160 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1161 default y
1162
1163config ARC64
1164 bool
1165
1166config BOOT_ELF64
1167 bool
1168
1169menu "CPU selection"
1170
1171choice
1172 prompt "CPU type"
1173 default CPU_R4X00
1174
1175config CPU_LOONGSON2E
1176 bool "Loongson 2E"
1177 depends on SYS_HAS_CPU_LOONGSON2E
1178 select CPU_LOONGSON2
1179 help
1180 The Loongson 2E processor implements the MIPS III instruction set
1181 with many extensions.
1182
1183 It has an internal FPGA northbridge, which is compatible to
1184 bonito64.
1185
1186config CPU_LOONGSON2F
1187 bool "Loongson 2F"
1188 depends on SYS_HAS_CPU_LOONGSON2F
1189 select CPU_LOONGSON2
1190 select GENERIC_GPIO
1191 select ARCH_REQUIRE_GPIOLIB
1192 help
1193 The Loongson 2F processor implements the MIPS III instruction set
1194 with many extensions.
1195
1196 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1197 have a similar programming interface with FPGA northbridge used in
1198 Loongson2E.
1199
1200config CPU_MIPS32_R1
1201 bool "MIPS32 Release 1"
1202 depends on SYS_HAS_CPU_MIPS32_R1
1203 select CPU_HAS_PREFETCH
1204 select CPU_SUPPORTS_32BIT_KERNEL
1205 select CPU_SUPPORTS_HIGHMEM
1206 help
1207 Choose this option to build a kernel for release 1 or later of the
1208 MIPS32 architecture. Most modern embedded systems with a 32-bit
1209 MIPS processor are based on a MIPS32 processor. If you know the
1210 specific type of processor in your system, choose those that one
1211 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1212 Release 2 of the MIPS32 architecture is available since several
1213 years so chances are you even have a MIPS32 Release 2 processor
1214 in which case you should choose CPU_MIPS32_R2 instead for better
1215 performance.
1216
1217config CPU_MIPS32_R2
1218 bool "MIPS32 Release 2"
1219 depends on SYS_HAS_CPU_MIPS32_R2
1220 select CPU_HAS_PREFETCH
1221 select CPU_SUPPORTS_32BIT_KERNEL
1222 select CPU_SUPPORTS_HIGHMEM
1223 help
1224 Choose this option to build a kernel for release 2 or later of the
1225 MIPS32 architecture. Most modern embedded systems with a 32-bit
1226 MIPS processor are based on a MIPS32 processor. If you know the
1227 specific type of processor in your system, choose those that one
1228 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1229
1230config CPU_MIPS64_R1
1231 bool "MIPS64 Release 1"
1232 depends on SYS_HAS_CPU_MIPS64_R1
1233 select CPU_HAS_PREFETCH
1234 select CPU_SUPPORTS_32BIT_KERNEL
1235 select CPU_SUPPORTS_64BIT_KERNEL
1236 select CPU_SUPPORTS_HIGHMEM
1237 select CPU_SUPPORTS_HUGEPAGES
1238 help
1239 Choose this option to build a kernel for release 1 or later of the
1240 MIPS64 architecture. Many modern embedded systems with a 64-bit
1241 MIPS processor are based on a MIPS64 processor. If you know the
1242 specific type of processor in your system, choose those that one
1243 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1244 Release 2 of the MIPS64 architecture is available since several
1245 years so chances are you even have a MIPS64 Release 2 processor
1246 in which case you should choose CPU_MIPS64_R2 instead for better
1247 performance.
1248
1249config CPU_MIPS64_R2
1250 bool "MIPS64 Release 2"
1251 depends on SYS_HAS_CPU_MIPS64_R2
1252 select CPU_HAS_PREFETCH
1253 select CPU_SUPPORTS_32BIT_KERNEL
1254 select CPU_SUPPORTS_64BIT_KERNEL
1255 select CPU_SUPPORTS_HIGHMEM
1256 select CPU_SUPPORTS_HUGEPAGES
1257 help
1258 Choose this option to build a kernel for release 2 or later of the
1259 MIPS64 architecture. Many modern embedded systems with a 64-bit
1260 MIPS processor are based on a MIPS64 processor. If you know the
1261 specific type of processor in your system, choose those that one
1262 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1263
1264config CPU_R3000
1265 bool "R3000"
1266 depends on SYS_HAS_CPU_R3000
1267 select CPU_HAS_WB
1268 select CPU_SUPPORTS_32BIT_KERNEL
1269 select CPU_SUPPORTS_HIGHMEM
1270 help
1271 Please make sure to pick the right CPU type. Linux/MIPS is not
1272 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1273 *not* work on R4000 machines and vice versa. However, since most
1274 of the supported machines have an R4000 (or similar) CPU, R4x00
1275 might be a safe bet. If the resulting kernel does not work,
1276 try to recompile with R3000.
1277
1278config CPU_TX39XX
1279 bool "R39XX"
1280 depends on SYS_HAS_CPU_TX39XX
1281 select CPU_SUPPORTS_32BIT_KERNEL
1282
1283config CPU_VR41XX
1284 bool "R41xx"
1285 depends on SYS_HAS_CPU_VR41XX
1286 select CPU_SUPPORTS_32BIT_KERNEL
1287 select CPU_SUPPORTS_64BIT_KERNEL
1288 help
1289 The options selects support for the NEC VR4100 series of processors.
1290 Only choose this option if you have one of these processors as a
1291 kernel built with this option will not run on any other type of
1292 processor or vice versa.
1293
1294config CPU_R4300
1295 bool "R4300"
1296 depends on SYS_HAS_CPU_R4300
1297 select CPU_SUPPORTS_32BIT_KERNEL
1298 select CPU_SUPPORTS_64BIT_KERNEL
1299 help
1300 MIPS Technologies R4300-series processors.
1301
1302config CPU_R4X00
1303 bool "R4x00"
1304 depends on SYS_HAS_CPU_R4X00
1305 select CPU_SUPPORTS_32BIT_KERNEL
1306 select CPU_SUPPORTS_64BIT_KERNEL
1307 help
1308 MIPS Technologies R4000-series processors other than 4300, including
1309 the R4000, R4400, R4600, and 4700.
1310
1311config CPU_TX49XX
1312 bool "R49XX"
1313 depends on SYS_HAS_CPU_TX49XX
1314 select CPU_HAS_PREFETCH
1315 select CPU_SUPPORTS_32BIT_KERNEL
1316 select CPU_SUPPORTS_64BIT_KERNEL
1317
1318config CPU_R5000
1319 bool "R5000"
1320 depends on SYS_HAS_CPU_R5000
1321 select CPU_SUPPORTS_32BIT_KERNEL
1322 select CPU_SUPPORTS_64BIT_KERNEL
1323 help
1324 MIPS Technologies R5000-series processors other than the Nevada.
1325
1326config CPU_R5432
1327 bool "R5432"
1328 depends on SYS_HAS_CPU_R5432
1329 select CPU_SUPPORTS_32BIT_KERNEL
1330 select CPU_SUPPORTS_64BIT_KERNEL
1331
1332config CPU_R5500
1333 bool "R5500"
1334 depends on SYS_HAS_CPU_R5500
1335 select CPU_SUPPORTS_32BIT_KERNEL
1336 select CPU_SUPPORTS_64BIT_KERNEL
1337 select CPU_SUPPORTS_HUGEPAGES
1338 help
1339 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1340 instruction set.
1341
1342config CPU_R6000
1343 bool "R6000"
1344 depends on EXPERIMENTAL
1345 depends on SYS_HAS_CPU_R6000
1346 select CPU_SUPPORTS_32BIT_KERNEL
1347 help
1348 MIPS Technologies R6000 and R6000A series processors. Note these
1349 processors are extremely rare and the support for them is incomplete.
1350
1351config CPU_NEVADA
1352 bool "RM52xx"
1353 depends on SYS_HAS_CPU_NEVADA
1354 select CPU_SUPPORTS_32BIT_KERNEL
1355 select CPU_SUPPORTS_64BIT_KERNEL
1356 help
1357 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1358
1359config CPU_R8000
1360 bool "R8000"
1361 depends on EXPERIMENTAL
1362 depends on SYS_HAS_CPU_R8000
1363 select CPU_HAS_PREFETCH
1364 select CPU_SUPPORTS_64BIT_KERNEL
1365 help
1366 MIPS Technologies R8000 processors. Note these processors are
1367 uncommon and the support for them is incomplete.
1368
1369config CPU_R10000
1370 bool "R10000"
1371 depends on SYS_HAS_CPU_R10000
1372 select CPU_HAS_PREFETCH
1373 select CPU_SUPPORTS_32BIT_KERNEL
1374 select CPU_SUPPORTS_64BIT_KERNEL
1375 select CPU_SUPPORTS_HIGHMEM
1376 help
1377 MIPS Technologies R10000-series processors.
1378
1379config CPU_RM7000
1380 bool "RM7000"
1381 depends on SYS_HAS_CPU_RM7000
1382 select CPU_HAS_PREFETCH
1383 select CPU_SUPPORTS_32BIT_KERNEL
1384 select CPU_SUPPORTS_64BIT_KERNEL
1385 select CPU_SUPPORTS_HIGHMEM
1386
1387config CPU_RM9000
1388 bool "RM9000"
1389 depends on SYS_HAS_CPU_RM9000
1390 select CPU_HAS_PREFETCH
1391 select CPU_SUPPORTS_32BIT_KERNEL
1392 select CPU_SUPPORTS_64BIT_KERNEL
1393 select CPU_SUPPORTS_HIGHMEM
1394 select WEAK_ORDERING
1395
1396config CPU_SB1
1397 bool "SB1"
1398 depends on SYS_HAS_CPU_SB1
1399 select CPU_SUPPORTS_32BIT_KERNEL
1400 select CPU_SUPPORTS_64BIT_KERNEL
1401 select CPU_SUPPORTS_HIGHMEM
1402 select WEAK_ORDERING
1403
1404config CPU_CAVIUM_OCTEON
1405 bool "Cavium Octeon processor"
1406 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1407 select CPU_HAS_PREFETCH
1408 select CPU_SUPPORTS_64BIT_KERNEL
1409 select SYS_SUPPORTS_SMP
1410 select NR_CPUS_DEFAULT_16
1411 select WEAK_ORDERING
1412 select CPU_SUPPORTS_HIGHMEM
1413 select CPU_SUPPORTS_HUGEPAGES
1414 help
1415 The Cavium Octeon processor is a highly integrated chip containing
1416 many ethernet hardware widgets for networking tasks. The processor
1417 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1418 Full details can be found at http://www.caviumnetworks.com.
1419
1420config CPU_BMIPS3300
1421 bool "BMIPS3300"
1422 depends on SYS_HAS_CPU_BMIPS3300
1423 select DMA_NONCOHERENT
1424 select IRQ_CPU
1425 select SWAP_IO_SPACE
1426 select SYS_SUPPORTS_32BIT_KERNEL
1427 select WEAK_ORDERING
1428 help
1429 Broadcom BMIPS3300 processors.
1430
1431config CPU_BMIPS4350
1432 bool "BMIPS4350"
1433 depends on SYS_HAS_CPU_BMIPS4350
1434 select CPU_SUPPORTS_32BIT_KERNEL
1435 select DMA_NONCOHERENT
1436 select IRQ_CPU
1437 select SWAP_IO_SPACE
1438 select SYS_SUPPORTS_SMP
1439 select SYS_SUPPORTS_HOTPLUG_CPU
1440 select WEAK_ORDERING
1441 help
1442 Broadcom BMIPS4350 ("VIPER") processors.
1443
1444config CPU_BMIPS4380
1445 bool "BMIPS4380"
1446 depends on SYS_HAS_CPU_BMIPS4380
1447 select CPU_SUPPORTS_32BIT_KERNEL
1448 select DMA_NONCOHERENT
1449 select IRQ_CPU
1450 select SWAP_IO_SPACE
1451 select SYS_SUPPORTS_SMP
1452 select SYS_SUPPORTS_HOTPLUG_CPU
1453 select WEAK_ORDERING
1454 help
1455 Broadcom BMIPS4380 processors.
1456
1457config CPU_BMIPS5000
1458 bool "BMIPS5000"
1459 depends on SYS_HAS_CPU_BMIPS5000
1460 select CPU_SUPPORTS_32BIT_KERNEL
1461 select CPU_SUPPORTS_HIGHMEM
1462 select DMA_NONCOHERENT
1463 select IRQ_CPU
1464 select SWAP_IO_SPACE
1465 select SYS_SUPPORTS_SMP
1466 select SYS_SUPPORTS_HOTPLUG_CPU
1467 select WEAK_ORDERING
1468 help
1469 Broadcom BMIPS5000 processors.
1470
1471config CPU_XLR
1472 bool "Netlogic XLR SoC"
1473 depends on SYS_HAS_CPU_XLR
1474 select CPU_SUPPORTS_32BIT_KERNEL
1475 select CPU_SUPPORTS_64BIT_KERNEL
1476 select CPU_SUPPORTS_HIGHMEM
1477 select WEAK_ORDERING
1478 select WEAK_REORDERING_BEYOND_LLSC
1479 select CPU_SUPPORTS_HUGEPAGES
1480 help
1481 Netlogic Microsystems XLR/XLS processors.
1482endchoice
1483
1484if CPU_LOONGSON2F
1485config CPU_NOP_WORKAROUNDS
1486 bool
1487
1488config CPU_JUMP_WORKAROUNDS
1489 bool
1490
1491config CPU_LOONGSON2F_WORKAROUNDS
1492 bool "Loongson 2F Workarounds"
1493 default y
1494 select CPU_NOP_WORKAROUNDS
1495 select CPU_JUMP_WORKAROUNDS
1496 help
1497 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1498 require workarounds. Without workarounds the system may hang
1499 unexpectedly. For more information please refer to the gas
1500 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1501
1502 Loongson 2F03 and later have fixed these issues and no workarounds
1503 are needed. The workarounds have no significant side effect on them
1504 but may decrease the performance of the system so this option should
1505 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1506 systems.
1507
1508 If unsure, please say Y.
1509endif # CPU_LOONGSON2F
1510
1511config SYS_SUPPORTS_ZBOOT
1512 bool
1513 select HAVE_KERNEL_GZIP
1514 select HAVE_KERNEL_BZIP2
1515 select HAVE_KERNEL_LZMA
1516 select HAVE_KERNEL_LZO
1517
1518config SYS_SUPPORTS_ZBOOT_UART16550
1519 bool
1520 select SYS_SUPPORTS_ZBOOT
1521
1522config CPU_LOONGSON2
1523 bool
1524 select CPU_SUPPORTS_32BIT_KERNEL
1525 select CPU_SUPPORTS_64BIT_KERNEL
1526 select CPU_SUPPORTS_HIGHMEM
1527
1528config SYS_HAS_CPU_LOONGSON2E
1529 bool
1530
1531config SYS_HAS_CPU_LOONGSON2F
1532 bool
1533 select CPU_SUPPORTS_CPUFREQ
1534 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1535 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1536
1537config SYS_HAS_CPU_MIPS32_R1
1538 bool
1539
1540config SYS_HAS_CPU_MIPS32_R2
1541 bool
1542
1543config SYS_HAS_CPU_MIPS64_R1
1544 bool
1545
1546config SYS_HAS_CPU_MIPS64_R2
1547 bool
1548
1549config SYS_HAS_CPU_R3000
1550 bool
1551
1552config SYS_HAS_CPU_TX39XX
1553 bool
1554
1555config SYS_HAS_CPU_VR41XX
1556 bool
1557
1558config SYS_HAS_CPU_R4300
1559 bool
1560
1561config SYS_HAS_CPU_R4X00
1562 bool
1563
1564config SYS_HAS_CPU_TX49XX
1565 bool
1566
1567config SYS_HAS_CPU_R5000
1568 bool
1569
1570config SYS_HAS_CPU_R5432
1571 bool
1572
1573config SYS_HAS_CPU_R5500
1574 bool
1575
1576config SYS_HAS_CPU_R6000
1577 bool
1578
1579config SYS_HAS_CPU_NEVADA
1580 bool
1581
1582config SYS_HAS_CPU_R8000
1583 bool
1584
1585config SYS_HAS_CPU_R10000
1586 bool
1587
1588config SYS_HAS_CPU_RM7000
1589 bool
1590
1591config SYS_HAS_CPU_RM9000
1592 bool
1593
1594config SYS_HAS_CPU_SB1
1595 bool
1596
1597config SYS_HAS_CPU_CAVIUM_OCTEON
1598 bool
1599
1600config SYS_HAS_CPU_BMIPS3300
1601 bool
1602
1603config SYS_HAS_CPU_BMIPS4350
1604 bool
1605
1606config SYS_HAS_CPU_BMIPS4380
1607 bool
1608
1609config SYS_HAS_CPU_BMIPS5000
1610 bool
1611
1612config SYS_HAS_CPU_XLR
1613 bool
1614
1615#
1616# CPU may reorder R->R, R->W, W->R, W->W
1617# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1618#
1619config WEAK_ORDERING
1620 bool
1621
1622#
1623# CPU may reorder reads and writes beyond LL/SC
1624# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1625#
1626config WEAK_REORDERING_BEYOND_LLSC
1627 bool
1628endmenu
1629
1630#
1631# These two indicate any level of the MIPS32 and MIPS64 architecture
1632#
1633config CPU_MIPS32
1634 bool
1635 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1636
1637config CPU_MIPS64
1638 bool
1639 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1640
1641#
1642# These two indicate the revision of the architecture, either Release 1 or Release 2
1643#
1644config CPU_MIPSR1
1645 bool
1646 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1647
1648config CPU_MIPSR2
1649 bool
1650 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1651
1652config SYS_SUPPORTS_32BIT_KERNEL
1653 bool
1654config SYS_SUPPORTS_64BIT_KERNEL
1655 bool
1656config CPU_SUPPORTS_32BIT_KERNEL
1657 bool
1658config CPU_SUPPORTS_64BIT_KERNEL
1659 bool
1660config CPU_SUPPORTS_CPUFREQ
1661 bool
1662config CPU_SUPPORTS_ADDRWINCFG
1663 bool
1664config CPU_SUPPORTS_HUGEPAGES
1665 bool
1666config CPU_SUPPORTS_UNCACHED_ACCELERATED
1667 bool
1668config MIPS_PGD_C0_CONTEXT
1669 bool
1670 default y if 64BIT && CPU_MIPSR2
1671
1672#
1673# Set to y for ptrace access to watch registers.
1674#
1675config HARDWARE_WATCHPOINTS
1676 bool
1677 default y if CPU_MIPSR1 || CPU_MIPSR2
1678
1679menu "Kernel type"
1680
1681choice
1682
1683 prompt "Kernel code model"
1684 help
1685 You should only select this option if you have a workload that
1686 actually benefits from 64-bit processing or if your machine has
1687 large memory. You will only be presented a single option in this
1688 menu if your system does not support both 32-bit and 64-bit kernels.
1689
1690config 32BIT
1691 bool "32-bit kernel"
1692 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1693 select TRAD_SIGNALS
1694 help
1695 Select this option if you want to build a 32-bit kernel.
1696config 64BIT
1697 bool "64-bit kernel"
1698 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1699 select HAVE_SYSCALL_WRAPPERS
1700 help
1701 Select this option if you want to build a 64-bit kernel.
1702
1703endchoice
1704
1705choice
1706 prompt "Kernel page size"
1707 default PAGE_SIZE_4KB
1708
1709config PAGE_SIZE_4KB
1710 bool "4kB"
1711 depends on !CPU_LOONGSON2
1712 help
1713 This option select the standard 4kB Linux page size. On some
1714 R3000-family processors this is the only available page size. Using
1715 4kB page size will minimize memory consumption and is therefore
1716 recommended for low memory systems.
1717
1718config PAGE_SIZE_8KB
1719 bool "8kB"
1720 depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON
1721 help
1722 Using 8kB page size will result in higher performance kernel at
1723 the price of higher memory consumption. This option is available
1724 only on R8000 and cnMIPS processors. Note that you will need a
1725 suitable Linux distribution to support this.
1726
1727config PAGE_SIZE_16KB
1728 bool "16kB"
1729 depends on !CPU_R3000 && !CPU_TX39XX
1730 help
1731 Using 16kB page size will result in higher performance kernel at
1732 the price of higher memory consumption. This option is available on
1733 all non-R3000 family processors. Note that you will need a suitable
1734 Linux distribution to support this.
1735
1736config PAGE_SIZE_32KB
1737 bool "32kB"
1738 depends on CPU_CAVIUM_OCTEON
1739 help
1740 Using 32kB page size will result in higher performance kernel at
1741 the price of higher memory consumption. This option is available
1742 only on cnMIPS cores. Note that you will need a suitable Linux
1743 distribution to support this.
1744
1745config PAGE_SIZE_64KB
1746 bool "64kB"
1747 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1748 help
1749 Using 64kB page size will result in higher performance kernel at
1750 the price of higher memory consumption. This option is available on
1751 all non-R3000 family processor. Not that at the time of this
1752 writing this option is still high experimental.
1753
1754endchoice
1755
1756config FORCE_MAX_ZONEORDER
1757 int "Maximum zone order"
1758 range 13 64 if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_32KB
1759 default "13" if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_32KB
1760 range 12 64 if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_16KB
1761 default "12" if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_16KB
1762 range 11 64
1763 default "11"
1764 help
1765 The kernel memory allocator divides physically contiguous memory
1766 blocks into "zones", where each zone is a power of two number of
1767 pages. This option selects the largest power of two that the kernel
1768 keeps in the memory allocator. If you need to allocate very large
1769 blocks of physically contiguous memory, then you may need to
1770 increase this value.
1771
1772 This config option is actually maximum order plus one. For example,
1773 a value of 11 means that the largest free memory block is 2^10 pages.
1774
1775 The page size is not necessarily 4KB. Keep this in mind
1776 when choosing a value for this option.
1777
1778config BOARD_SCACHE
1779 bool
1780
1781config IP22_CPU_SCACHE
1782 bool
1783 select BOARD_SCACHE
1784
1785#
1786# Support for a MIPS32 / MIPS64 style S-caches
1787#
1788config MIPS_CPU_SCACHE
1789 bool
1790 select BOARD_SCACHE
1791
1792config R5000_CPU_SCACHE
1793 bool
1794 select BOARD_SCACHE
1795
1796config RM7000_CPU_SCACHE
1797 bool
1798 select BOARD_SCACHE
1799
1800config SIBYTE_DMA_PAGEOPS
1801 bool "Use DMA to clear/copy pages"
1802 depends on CPU_SB1
1803 help
1804 Instead of using the CPU to zero and copy pages, use a Data Mover
1805 channel. These DMA channels are otherwise unused by the standard
1806 SiByte Linux port. Seems to give a small performance benefit.
1807
1808config CPU_HAS_PREFETCH
1809 bool
1810
1811choice
1812 prompt "MIPS MT options"
1813
1814config MIPS_MT_DISABLED
1815 bool "Disable multithreading support."
1816 help
1817 Use this option if your workload can't take advantage of
1818 MIPS hardware multithreading support. On systems that don't have
1819 the option of an MT-enabled processor this option will be the only
1820 option in this menu.
1821
1822config MIPS_MT_SMP
1823 bool "Use 1 TC on each available VPE for SMP"
1824 depends on SYS_SUPPORTS_MULTITHREADING
1825 select CPU_MIPSR2_IRQ_VI
1826 select CPU_MIPSR2_IRQ_EI
1827 select MIPS_MT
1828 select NR_CPUS_DEFAULT_2
1829 select SMP
1830 select SYS_SUPPORTS_SCHED_SMT if SMP
1831 select SYS_SUPPORTS_SMP
1832 select SMP_UP
1833 help
1834 This is a kernel model which is known a VSMP but lately has been
1835 marketesed into SMVP.
1836 Virtual SMP uses the processor's VPEs to implement virtual
1837 processors. In currently available configuration of the 34K processor
1838 this allows for a dual processor. Both processors will share the same
1839 primary caches; each will obtain the half of the TLB for it's own
1840 exclusive use. For a layman this model can be described as similar to
1841 what Intel calls Hyperthreading.
1842
1843 For further information see http://www.linux-mips.org/wiki/34K#VSMP
1844
1845config MIPS_MT_SMTC
1846 bool "SMTC: Use all TCs on all VPEs for SMP"
1847 depends on CPU_MIPS32_R2
1848 #depends on CPU_MIPS64_R2 # once there is hardware ...
1849 depends on SYS_SUPPORTS_MULTITHREADING
1850 select CPU_MIPSR2_IRQ_VI
1851 select CPU_MIPSR2_IRQ_EI
1852 select MIPS_MT
1853 select NR_CPUS_DEFAULT_8
1854 select SMP
1855 select SYS_SUPPORTS_SMP
1856 select SMP_UP
1857 help
1858 This is a kernel model which is known a SMTC or lately has been
1859 marketesed into SMVP.
1860 is presenting the available TC's of the core as processors to Linux.
1861 On currently available 34K processors this means a Linux system will
1862 see up to 5 processors. The implementation of the SMTC kernel differs
1863 significantly from VSMP and cannot efficiently coexist in the same
1864 kernel binary so the choice between VSMP and SMTC is a compile time
1865 decision.
1866
1867 For further information see http://www.linux-mips.org/wiki/34K#SMTC
1868
1869endchoice
1870
1871config MIPS_MT
1872 bool
1873
1874config SCHED_SMT
1875 bool "SMT (multithreading) scheduler support"
1876 depends on SYS_SUPPORTS_SCHED_SMT
1877 default n
1878 help
1879 SMT scheduler support improves the CPU scheduler's decision making
1880 when dealing with MIPS MT enabled cores at a cost of slightly
1881 increased overhead in some places. If unsure say N here.
1882
1883config SYS_SUPPORTS_SCHED_SMT
1884 bool
1885
1886
1887config SYS_SUPPORTS_MULTITHREADING
1888 bool
1889
1890config MIPS_MT_FPAFF
1891 bool "Dynamic FPU affinity for FP-intensive threads"
1892 default y
1893 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1894
1895config MIPS_VPE_LOADER
1896 bool "VPE loader support."
1897 depends on SYS_SUPPORTS_MULTITHREADING
1898 select CPU_MIPSR2_IRQ_VI
1899 select CPU_MIPSR2_IRQ_EI
1900 select MIPS_MT
1901 help
1902 Includes a loader for loading an elf relocatable object
1903 onto another VPE and running it.
1904
1905config MIPS_MT_SMTC_IM_BACKSTOP
1906 bool "Use per-TC register bits as backstop for inhibited IM bits"
1907 depends on MIPS_MT_SMTC
1908 default n
1909 help
1910 To support multiple TC microthreads acting as "CPUs" within
1911 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1912 during interrupt handling. To support legacy drivers and interrupt
1913 controller management code, SMTC has a "backstop" to track and
1914 if necessary restore the interrupt mask. This has some performance
1915 impact on interrupt service overhead.
1916
1917config MIPS_MT_SMTC_IRQAFF
1918 bool "Support IRQ affinity API"
1919 depends on MIPS_MT_SMTC
1920 default n
1921 help
1922 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1923 for SMTC Linux kernel. Requires platform support, of which
1924 an example can be found in the MIPS kernel i8259 and Malta
1925 platform code. Adds some overhead to interrupt dispatch, and
1926 should be used only if you know what you are doing.
1927
1928config MIPS_VPE_LOADER_TOM
1929 bool "Load VPE program into memory hidden from linux"
1930 depends on MIPS_VPE_LOADER
1931 default y
1932 help
1933 The loader can use memory that is present but has been hidden from
1934 Linux using the kernel command line option "mem=xxMB". It's up to
1935 you to ensure the amount you put in the option and the space your
1936 program requires is less or equal to the amount physically present.
1937
1938# this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1939config MIPS_VPE_APSP_API
1940 bool "Enable support for AP/SP API (RTLX)"
1941 depends on MIPS_VPE_LOADER
1942 help
1943
1944config MIPS_APSP_KSPD
1945 bool "Enable KSPD"
1946 depends on MIPS_VPE_APSP_API
1947 default y
1948 help
1949 KSPD is a kernel daemon that accepts syscall requests from the SP
1950 side, actions them and returns the results. It also handles the
1951 "exit" syscall notifying other kernel modules the SP program is
1952 exiting. You probably want to say yes here.
1953
1954config MIPS_CMP
1955 bool "MIPS CMP framework support"
1956 depends on SYS_SUPPORTS_MIPS_CMP
1957 select SYNC_R4K
1958 select SYS_SUPPORTS_SMP
1959 select SYS_SUPPORTS_SCHED_SMT if SMP
1960 select WEAK_ORDERING
1961 default n
1962 help
1963 This is a placeholder option for the GCMP work. It will need to
1964 be handled differently...
1965
1966config SB1_PASS_1_WORKAROUNDS
1967 bool
1968 depends on CPU_SB1_PASS_1
1969 default y
1970
1971config SB1_PASS_2_WORKAROUNDS
1972 bool
1973 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1974 default y
1975
1976config SB1_PASS_2_1_WORKAROUNDS
1977 bool
1978 depends on CPU_SB1 && CPU_SB1_PASS_2
1979 default y
1980
1981config 64BIT_PHYS_ADDR
1982 bool
1983
1984config ARCH_PHYS_ADDR_T_64BIT
1985 def_bool 64BIT_PHYS_ADDR
1986
1987config CPU_HAS_SMARTMIPS
1988 depends on SYS_SUPPORTS_SMARTMIPS
1989 bool "Support for the SmartMIPS ASE"
1990 help
1991 SmartMIPS is a extension of the MIPS32 architecture aimed at
1992 increased security at both hardware and software level for
1993 smartcards. Enabling this option will allow proper use of the
1994 SmartMIPS instructions by Linux applications. However a kernel with
1995 this option will not work on a MIPS core without SmartMIPS core. If
1996 you don't know you probably don't have SmartMIPS and should say N
1997 here.
1998
1999config CPU_HAS_WB
2000 bool
2001
2002#
2003# Vectored interrupt mode is an R2 feature
2004#
2005config CPU_MIPSR2_IRQ_VI
2006 bool
2007
2008#
2009# Extended interrupt mode is an R2 feature
2010#
2011config CPU_MIPSR2_IRQ_EI
2012 bool
2013
2014config CPU_HAS_SYNC
2015 bool
2016 depends on !CPU_R3000
2017 default y
2018
2019config GENERIC_CLOCKEVENTS_BROADCAST
2020 bool
2021
2022#
2023# CPU non-features
2024#
2025config CPU_DADDI_WORKAROUNDS
2026 bool
2027
2028config CPU_R4000_WORKAROUNDS
2029 bool
2030 select CPU_R4400_WORKAROUNDS
2031
2032config CPU_R4400_WORKAROUNDS
2033 bool
2034
2035#
2036# - Highmem only makes sense for the 32-bit kernel.
2037# - The current highmem code will only work properly on physically indexed
2038# caches such as R3000, SB1, R7000 or those that look like they're virtually
2039# indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2040# moment we protect the user and offer the highmem option only on machines
2041# where it's known to be safe. This will not offer highmem on a few systems
2042# such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2043# indexed CPUs but we're playing safe.
2044# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2045# know they might have memory configurations that could make use of highmem
2046# support.
2047#
2048config HIGHMEM
2049 bool "High Memory Support"
2050 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
2051
2052config CPU_SUPPORTS_HIGHMEM
2053 bool
2054
2055config SYS_SUPPORTS_HIGHMEM
2056 bool
2057
2058config SYS_SUPPORTS_SMARTMIPS
2059 bool
2060
2061config ARCH_FLATMEM_ENABLE
2062 def_bool y
2063 depends on !NUMA && !CPU_LOONGSON2
2064
2065config ARCH_DISCONTIGMEM_ENABLE
2066 bool
2067 default y if SGI_IP27
2068 help
2069 Say Y to support efficient handling of discontiguous physical memory,
2070 for architectures which are either NUMA (Non-Uniform Memory Access)
2071 or have huge holes in the physical address space for other reasons.
2072 See <file:Documentation/vm/numa> for more.
2073
2074config ARCH_POPULATES_NODE_MAP
2075 def_bool y
2076
2077config ARCH_SPARSEMEM_ENABLE
2078 bool
2079 select SPARSEMEM_STATIC
2080
2081config NUMA
2082 bool "NUMA Support"
2083 depends on SYS_SUPPORTS_NUMA
2084 help
2085 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2086 Access). This option improves performance on systems with more
2087 than two nodes; on two node systems it is generally better to
2088 leave it disabled; on single node systems disable this option
2089 disabled.
2090
2091config SYS_SUPPORTS_NUMA
2092 bool
2093
2094config NODES_SHIFT
2095 int
2096 default "6"
2097 depends on NEED_MULTIPLE_NODES
2098
2099config HW_PERF_EVENTS
2100 bool "Enable hardware performance counter support for perf events"
2101 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && CPU_MIPS32
2102 default y
2103 help
2104 Enable hardware performance counter support for perf events. If
2105 disabled, perf events will use software events only.
2106
2107source "mm/Kconfig"
2108
2109config SMP
2110 bool "Multi-Processing support"
2111 depends on SYS_SUPPORTS_SMP
2112 select IRQ_PER_CPU
2113 select USE_GENERIC_SMP_HELPERS
2114 help
2115 This enables support for systems with more than one CPU. If you have
2116 a system with only one CPU, like most personal computers, say N. If
2117 you have a system with more than one CPU, say Y.
2118
2119 If you say N here, the kernel will run on single and multiprocessor
2120 machines, but will use only one CPU of a multiprocessor machine. If
2121 you say Y here, the kernel will run on many, but not all,
2122 singleprocessor machines. On a singleprocessor machine, the kernel
2123 will run faster if you say N here.
2124
2125 People using multiprocessor machines who say Y here should also say
2126 Y to "Enhanced Real Time Clock Support", below.
2127
2128 See also the SMP-HOWTO available at
2129 <http://www.tldp.org/docs.html#howto>.
2130
2131 If you don't know what to do here, say N.
2132
2133config SMP_UP
2134 bool
2135
2136config SYS_SUPPORTS_MIPS_CMP
2137 bool
2138
2139config SYS_SUPPORTS_SMP
2140 bool
2141
2142config NR_CPUS_DEFAULT_1
2143 bool
2144
2145config NR_CPUS_DEFAULT_2
2146 bool
2147
2148config NR_CPUS_DEFAULT_4
2149 bool
2150
2151config NR_CPUS_DEFAULT_8
2152 bool
2153
2154config NR_CPUS_DEFAULT_16
2155 bool
2156
2157config NR_CPUS_DEFAULT_32
2158 bool
2159
2160config NR_CPUS_DEFAULT_64
2161 bool
2162
2163config NR_CPUS
2164 int "Maximum number of CPUs (2-64)"
2165 range 1 64 if NR_CPUS_DEFAULT_1
2166 depends on SMP
2167 default "1" if NR_CPUS_DEFAULT_1
2168 default "2" if NR_CPUS_DEFAULT_2
2169 default "4" if NR_CPUS_DEFAULT_4
2170 default "8" if NR_CPUS_DEFAULT_8
2171 default "16" if NR_CPUS_DEFAULT_16
2172 default "32" if NR_CPUS_DEFAULT_32
2173 default "64" if NR_CPUS_DEFAULT_64
2174 help
2175 This allows you to specify the maximum number of CPUs which this
2176 kernel will support. The maximum supported value is 32 for 32-bit
2177 kernel and 64 for 64-bit kernels; the minimum value which makes
2178 sense is 1 for Qemu (useful only for kernel debugging purposes)
2179 and 2 for all others.
2180
2181 This is purely to save memory - each supported CPU adds
2182 approximately eight kilobytes to the kernel image. For best
2183 performance should round up your number of processors to the next
2184 power of two.
2185
2186source "kernel/time/Kconfig"
2187
2188#
2189# Timer Interrupt Frequency Configuration
2190#
2191
2192choice
2193 prompt "Timer frequency"
2194 default HZ_250
2195 help
2196 Allows the configuration of the timer frequency.
2197
2198 config HZ_48
2199 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2200
2201 config HZ_100
2202 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2203
2204 config HZ_128
2205 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2206
2207 config HZ_250
2208 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2209
2210 config HZ_256
2211 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2212
2213 config HZ_1000
2214 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2215
2216 config HZ_1024
2217 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2218
2219endchoice
2220
2221config SYS_SUPPORTS_48HZ
2222 bool
2223
2224config SYS_SUPPORTS_100HZ
2225 bool
2226
2227config SYS_SUPPORTS_128HZ
2228 bool
2229
2230config SYS_SUPPORTS_250HZ
2231 bool
2232
2233config SYS_SUPPORTS_256HZ
2234 bool
2235
2236config SYS_SUPPORTS_1000HZ
2237 bool
2238
2239config SYS_SUPPORTS_1024HZ
2240 bool
2241
2242config SYS_SUPPORTS_ARBIT_HZ
2243 bool
2244 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2245 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2246 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2247 !SYS_SUPPORTS_1024HZ
2248
2249config HZ
2250 int
2251 default 48 if HZ_48
2252 default 100 if HZ_100
2253 default 128 if HZ_128
2254 default 250 if HZ_250
2255 default 256 if HZ_256
2256 default 1000 if HZ_1000
2257 default 1024 if HZ_1024
2258
2259source "kernel/Kconfig.preempt"
2260
2261config MIPS_INSANE_LARGE
2262 bool "Support for large 64-bit configurations"
2263 depends on CPU_R10000 && 64BIT
2264 help
2265 MIPS R10000 does support a 44 bit / 16TB address space as opposed to
2266 previous 64-bit processors which only supported 40 bit / 1TB. If you
2267 need processes of more than 1TB virtual address space, say Y here.
2268 This will result in additional memory usage, so it is not
2269 recommended for normal users.
2270
2271config KEXEC
2272 bool "Kexec system call (EXPERIMENTAL)"
2273 depends on EXPERIMENTAL
2274 help
2275 kexec is a system call that implements the ability to shutdown your
2276 current kernel, and to start another kernel. It is like a reboot
2277 but it is independent of the system firmware. And like a reboot
2278 you can start any kernel with it, not just Linux.
2279
2280 The name comes from the similarity to the exec system call.
2281
2282 It is an ongoing process to be certain the hardware in a machine
2283 is properly shutdown, so do not be surprised if this code does not
2284 initially work for you. It may help to enable device hotplugging
2285 support. As of this writing the exact hardware interface is
2286 strongly in flux, so no good recommendation can be made.
2287
2288config SECCOMP
2289 bool "Enable seccomp to safely compute untrusted bytecode"
2290 depends on PROC_FS
2291 default y
2292 help
2293 This kernel feature is useful for number crunching applications
2294 that may need to compute untrusted bytecode during their
2295 execution. By using pipes or other transports made available to
2296 the process as file descriptors supporting the read/write
2297 syscalls, it's possible to isolate those applications in
2298 their own address space using seccomp. Once seccomp is
2299 enabled via /proc/<pid>/seccomp, it cannot be disabled
2300 and the task is only allowed to execute a few safe syscalls
2301 defined by each seccomp mode.
2302
2303 If unsure, say Y. Only embedded should say N here.
2304
2305config USE_OF
2306 bool "Flattened Device Tree support"
2307 select OF
2308 select OF_EARLY_FLATTREE
2309 help
2310 Include support for flattened device tree machine descriptions.
2311
2312endmenu
2313
2314config LOCKDEP_SUPPORT
2315 bool
2316 default y
2317
2318config STACKTRACE_SUPPORT
2319 bool
2320 default y
2321
2322source "init/Kconfig"
2323
2324source "kernel/Kconfig.freezer"
2325
2326menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2327
2328config HW_HAS_EISA
2329 bool
2330config HW_HAS_PCI
2331 bool
2332
2333config PCI
2334 bool "Support for PCI controller"
2335 depends on HW_HAS_PCI
2336 select PCI_DOMAINS
2337 help
2338 Find out whether you have a PCI motherboard. PCI is the name of a
2339 bus system, i.e. the way the CPU talks to the other stuff inside
2340 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2341 say Y, otherwise N.
2342
2343config PCI_DOMAINS
2344 bool
2345
2346source "drivers/pci/Kconfig"
2347
2348#
2349# ISA support is now enabled via select. Too many systems still have the one
2350# or other ISA chip on the board that users don't know about so don't expect
2351# users to choose the right thing ...
2352#
2353config ISA
2354 bool
2355
2356config EISA
2357 bool "EISA support"
2358 depends on HW_HAS_EISA
2359 select ISA
2360 select GENERIC_ISA_DMA
2361 ---help---
2362 The Extended Industry Standard Architecture (EISA) bus was
2363 developed as an open alternative to the IBM MicroChannel bus.
2364
2365 The EISA bus provided some of the features of the IBM MicroChannel
2366 bus while maintaining backward compatibility with cards made for
2367 the older ISA bus. The EISA bus saw limited use between 1988 and
2368 1995 when it was made obsolete by the PCI bus.
2369
2370 Say Y here if you are building a kernel for an EISA-based machine.
2371
2372 Otherwise, say N.
2373
2374source "drivers/eisa/Kconfig"
2375
2376config TC
2377 bool "TURBOchannel support"
2378 depends on MACH_DECSTATION
2379 help
2380 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2381 processors. TURBOchannel programming specifications are available
2382 at:
2383 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2384 and:
2385 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2386 Linux driver support status is documented at:
2387 <http://www.linux-mips.org/wiki/DECstation>
2388
2389#config ACCESSBUS
2390# bool "Access.Bus support"
2391# depends on TC
2392
2393config MMU
2394 bool
2395 default y
2396
2397config I8253
2398 bool
2399 select CLKSRC_I8253
2400 select CLKEVT_I8253
2401 select MIPS_EXTERNAL_TIMER
2402
2403config ZONE_DMA32
2404 bool
2405
2406source "drivers/pcmcia/Kconfig"
2407
2408source "drivers/pci/hotplug/Kconfig"
2409
2410config RAPIDIO
2411 bool "RapidIO support"
2412 depends on PCI
2413 default n
2414 help
2415 If you say Y here, the kernel will include drivers and
2416 infrastructure code to support RapidIO interconnect devices.
2417
2418source "drivers/rapidio/Kconfig"
2419
2420endmenu
2421
2422menu "Executable file formats"
2423
2424source "fs/Kconfig.binfmt"
2425
2426config TRAD_SIGNALS
2427 bool
2428
2429config MIPS32_COMPAT
2430 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2431 depends on 64BIT
2432 help
2433 Select this option if you want Linux/MIPS 32-bit binary
2434 compatibility. Since all software available for Linux/MIPS is
2435 currently 32-bit you should say Y here.
2436
2437config COMPAT
2438 bool
2439 depends on MIPS32_COMPAT
2440 default y
2441
2442config SYSVIPC_COMPAT
2443 bool
2444 depends on COMPAT && SYSVIPC
2445 default y
2446
2447config MIPS32_O32
2448 bool "Kernel support for o32 binaries"
2449 depends on MIPS32_COMPAT
2450 help
2451 Select this option if you want to run o32 binaries. These are pure
2452 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2453 existing binaries are in this format.
2454
2455 If unsure, say Y.
2456
2457config MIPS32_N32
2458 bool "Kernel support for n32 binaries"
2459 depends on MIPS32_COMPAT
2460 help
2461 Select this option if you want to run n32 binaries. These are
2462 64-bit binaries using 32-bit quantities for addressing and certain
2463 data that would normally be 64-bit. They are used in special
2464 cases.
2465
2466 If unsure, say N.
2467
2468config BINFMT_ELF32
2469 bool
2470 default y if MIPS32_O32 || MIPS32_N32
2471
2472endmenu
2473
2474menu "Power management options"
2475
2476config ARCH_HIBERNATION_POSSIBLE
2477 def_bool y
2478 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2479
2480config ARCH_SUSPEND_POSSIBLE
2481 def_bool y
2482 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2483
2484source "kernel/power/Kconfig"
2485
2486endmenu
2487
2488source "arch/mips/kernel/cpufreq/Kconfig"
2489
2490source "net/Kconfig"
2491
2492source "drivers/Kconfig"
2493
2494source "fs/Kconfig"
2495
2496source "arch/mips/Kconfig.debug"
2497
2498source "security/Kconfig"
2499
2500source "crypto/Kconfig"
2501
2502source "lib/Kconfig"