1
2config MIPS
3 bool
4 default y
5 select ARCH_32BIT_OFF_T if !64BIT
6 select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT
7 select ARCH_HAS_DEBUG_VIRTUAL if !64BIT
8 select ARCH_HAS_FORTIFY_SOURCE
9 select ARCH_HAS_KCOV
10 select ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE if !EVA
11 select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI)
12 select ARCH_HAS_STRNCPY_FROM_USER
13 select ARCH_HAS_STRNLEN_USER
14 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
15 select ARCH_HAS_UBSAN_SANITIZE_ALL
16 select ARCH_HAS_GCOV_PROFILE_ALL
17 select ARCH_KEEP_MEMBLOCK
18 select ARCH_SUPPORTS_UPROBES
19 select ARCH_USE_BUILTIN_BSWAP
20 select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
21 select ARCH_USE_MEMTEST
22 select ARCH_USE_QUEUED_RWLOCKS
23 select ARCH_USE_QUEUED_SPINLOCKS
24 select ARCH_SUPPORTS_HUGETLBFS if CPU_SUPPORTS_HUGEPAGES
25 select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU
26 select ARCH_WANT_IPC_PARSE_VERSION
27 select ARCH_WANT_LD_ORPHAN_WARN
28 select BUILDTIME_TABLE_SORT
29 select CLONE_BACKWARDS
30 select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
31 select CPU_PM if CPU_IDLE
32 select GENERIC_ATOMIC64 if !64BIT
33 select GENERIC_CMOS_UPDATE
34 select GENERIC_CPU_AUTOPROBE
35 select GENERIC_FIND_FIRST_BIT
36 select GENERIC_GETTIMEOFDAY
37 select GENERIC_IOMAP
38 select GENERIC_IRQ_PROBE
39 select GENERIC_IRQ_SHOW
40 select GENERIC_ISA_DMA if EISA
41 select GENERIC_LIB_ASHLDI3
42 select GENERIC_LIB_ASHRDI3
43 select GENERIC_LIB_CMPDI2
44 select GENERIC_LIB_LSHRDI3
45 select GENERIC_LIB_UCMPDI2
46 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
47 select GENERIC_SMP_IDLE_THREAD
48 select GENERIC_TIME_VSYSCALL
49 select GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT
50 select HANDLE_DOMAIN_IRQ
51 select HAVE_ARCH_COMPILER_H
52 select HAVE_ARCH_JUMP_LABEL
53 select HAVE_ARCH_KGDB if MIPS_FP_SUPPORT
54 select HAVE_ARCH_MMAP_RND_BITS if MMU
55 select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
56 select HAVE_ARCH_SECCOMP_FILTER
57 select HAVE_ARCH_TRACEHOOK
58 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES
59 select HAVE_ASM_MODVERSIONS
60 select HAVE_CBPF_JIT if !64BIT && !CPU_MICROMIPS
61 select HAVE_CONTEXT_TRACKING
62 select HAVE_TIF_NOHZ
63 select HAVE_C_RECORDMCOUNT
64 select HAVE_DEBUG_KMEMLEAK
65 select HAVE_DEBUG_STACKOVERFLOW
66 select HAVE_DMA_CONTIGUOUS
67 select HAVE_DYNAMIC_FTRACE
68 select HAVE_EBPF_JIT if 64BIT && !CPU_MICROMIPS && TARGET_ISA_REV >= 2
69 select HAVE_EXIT_THREAD
70 select HAVE_FAST_GUP
71 select HAVE_FTRACE_MCOUNT_RECORD
72 select HAVE_FUNCTION_GRAPH_TRACER
73 select HAVE_FUNCTION_TRACER
74 select HAVE_GCC_PLUGINS
75 select HAVE_GENERIC_VDSO
76 select HAVE_IOREMAP_PROT
77 select HAVE_IRQ_EXIT_ON_IRQ_STACK
78 select HAVE_IRQ_TIME_ACCOUNTING
79 select HAVE_KPROBES
80 select HAVE_KRETPROBES
81 select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
82 select HAVE_MOD_ARCH_SPECIFIC
83 select HAVE_NMI
84 select HAVE_PERF_EVENTS
85 select HAVE_PERF_REGS
86 select HAVE_PERF_USER_STACK_DUMP
87 select HAVE_REGS_AND_STACK_ACCESS_API
88 select HAVE_RSEQ
89 select HAVE_SPARSE_SYSCALL_NR
90 select HAVE_STACKPROTECTOR
91 select HAVE_SYSCALL_TRACEPOINTS
92 select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
93 select IRQ_FORCED_THREADING
94 select ISA if EISA
95 select MODULES_USE_ELF_REL if MODULES
96 select MODULES_USE_ELF_RELA if MODULES && 64BIT
97 select PERF_USE_VMALLOC
98 select PCI_MSI_ARCH_FALLBACKS if PCI_MSI
99 select RTC_LIB
100 select SYSCTL_EXCEPTION_TRACE
101 select TRACE_IRQFLAGS_SUPPORT
102 select VIRT_TO_BUS
103 select ARCH_HAS_ELFCORE_COMPAT
104
105config MIPS_FIXUP_BIGPHYS_ADDR
106 bool
107
108config MIPS_GENERIC
109 bool
110
111config MACH_INGENIC
112 bool
113 select SYS_SUPPORTS_32BIT_KERNEL
114 select SYS_SUPPORTS_LITTLE_ENDIAN
115 select SYS_SUPPORTS_ZBOOT
116 select DMA_NONCOHERENT
117 select ARCH_HAS_SYNC_DMA_FOR_CPU
118 select IRQ_MIPS_CPU
119 select PINCTRL
120 select GPIOLIB
121 select COMMON_CLK
122 select GENERIC_IRQ_CHIP
123 select BUILTIN_DTB if MIPS_NO_APPENDED_DTB
124 select USE_OF
125 select CPU_SUPPORTS_CPUFREQ
126 select MIPS_EXTERNAL_TIMER
127
128menu "Machine selection"
129
130choice
131 prompt "System type"
132 default MIPS_GENERIC_KERNEL
133
134config MIPS_GENERIC_KERNEL
135 bool "Generic board-agnostic MIPS kernel"
136 select ARCH_HAS_SETUP_DMA_OPS
137 select MIPS_GENERIC
138 select BOOT_RAW
139 select BUILTIN_DTB
140 select CEVT_R4K
141 select CLKSRC_MIPS_GIC
142 select COMMON_CLK
143 select CPU_MIPSR2_IRQ_EI
144 select CPU_MIPSR2_IRQ_VI
145 select CSRC_R4K
146 select DMA_NONCOHERENT
147 select HAVE_PCI
148 select IRQ_MIPS_CPU
149 select MIPS_AUTO_PFN_OFFSET
150 select MIPS_CPU_SCACHE
151 select MIPS_GIC
152 select MIPS_L1_CACHE_SHIFT_7
153 select NO_EXCEPT_FILL
154 select PCI_DRIVERS_GENERIC
155 select SMP_UP if SMP
156 select SWAP_IO_SPACE
157 select SYS_HAS_CPU_MIPS32_R1
158 select SYS_HAS_CPU_MIPS32_R2
159 select SYS_HAS_CPU_MIPS32_R6
160 select SYS_HAS_CPU_MIPS64_R1
161 select SYS_HAS_CPU_MIPS64_R2
162 select SYS_HAS_CPU_MIPS64_R6
163 select SYS_SUPPORTS_32BIT_KERNEL
164 select SYS_SUPPORTS_64BIT_KERNEL
165 select SYS_SUPPORTS_BIG_ENDIAN
166 select SYS_SUPPORTS_HIGHMEM
167 select SYS_SUPPORTS_LITTLE_ENDIAN
168 select SYS_SUPPORTS_MICROMIPS
169 select SYS_SUPPORTS_MIPS16
170 select SYS_SUPPORTS_MIPS_CPS
171 select SYS_SUPPORTS_MULTITHREADING
172 select SYS_SUPPORTS_RELOCATABLE
173 select SYS_SUPPORTS_SMARTMIPS
174 select SYS_SUPPORTS_ZBOOT
175 select UHI_BOOT
176 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
177 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
178 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
179 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
180 select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
181 select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
182 select USE_OF
183 help
184 Select this to build a kernel which aims to support multiple boards,
185 generally using a flattened device tree passed from the bootloader
186 using the boot protocol defined in the UHI (Unified Hosting
187 Interface) specification.
188
189config MIPS_ALCHEMY
190 bool "Alchemy processor based machines"
191 select PHYS_ADDR_T_64BIT
192 select CEVT_R4K
193 select CSRC_R4K
194 select IRQ_MIPS_CPU
195 select DMA_NONCOHERENT
196 select MIPS_FIXUP_BIGPHYS_ADDR if PCI
197 select SYS_HAS_CPU_MIPS32_R1
198 select SYS_SUPPORTS_32BIT_KERNEL
199 select SYS_SUPPORTS_APM_EMULATION
200 select GPIOLIB
201 select SYS_SUPPORTS_ZBOOT
202 select COMMON_CLK
203
204config AR7
205 bool "Texas Instruments AR7"
206 select BOOT_ELF32
207 select COMMON_CLK
208 select DMA_NONCOHERENT
209 select CEVT_R4K
210 select CSRC_R4K
211 select IRQ_MIPS_CPU
212 select NO_EXCEPT_FILL
213 select SWAP_IO_SPACE
214 select SYS_HAS_CPU_MIPS32_R1
215 select SYS_HAS_EARLY_PRINTK
216 select SYS_SUPPORTS_32BIT_KERNEL
217 select SYS_SUPPORTS_LITTLE_ENDIAN
218 select SYS_SUPPORTS_MIPS16
219 select SYS_SUPPORTS_ZBOOT_UART16550
220 select GPIOLIB
221 select VLYNQ
222 help
223 Support for the Texas Instruments AR7 System-on-a-Chip
224 family: TNETD7100, 7200 and 7300.
225
226config ATH25
227 bool "Atheros AR231x/AR531x SoC support"
228 select CEVT_R4K
229 select CSRC_R4K
230 select DMA_NONCOHERENT
231 select IRQ_MIPS_CPU
232 select IRQ_DOMAIN
233 select SYS_HAS_CPU_MIPS32_R1
234 select SYS_SUPPORTS_BIG_ENDIAN
235 select SYS_SUPPORTS_32BIT_KERNEL
236 select SYS_HAS_EARLY_PRINTK
237 help
238 Support for Atheros AR231x and Atheros AR531x based boards
239
240config ATH79
241 bool "Atheros AR71XX/AR724X/AR913X based boards"
242 select ARCH_HAS_RESET_CONTROLLER
243 select BOOT_RAW
244 select CEVT_R4K
245 select CSRC_R4K
246 select DMA_NONCOHERENT
247 select GPIOLIB
248 select PINCTRL
249 select COMMON_CLK
250 select IRQ_MIPS_CPU
251 select SYS_HAS_CPU_MIPS32_R2
252 select SYS_HAS_EARLY_PRINTK
253 select SYS_SUPPORTS_32BIT_KERNEL
254 select SYS_SUPPORTS_BIG_ENDIAN
255 select SYS_SUPPORTS_MIPS16
256 select SYS_SUPPORTS_ZBOOT_UART_PROM
257 select USE_OF
258 select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM
259 help
260 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
261
262config BMIPS_GENERIC
263 bool "Broadcom Generic BMIPS kernel"
264 select ARCH_HAS_RESET_CONTROLLER
265 select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
266 select ARCH_HAS_PHYS_TO_DMA
267 select BOOT_RAW
268 select NO_EXCEPT_FILL
269 select USE_OF
270 select CEVT_R4K
271 select CSRC_R4K
272 select SYNC_R4K
273 select COMMON_CLK
274 select BCM6345_L1_IRQ
275 select BCM7038_L1_IRQ
276 select BCM7120_L2_IRQ
277 select BRCMSTB_L2_IRQ
278 select IRQ_MIPS_CPU
279 select DMA_NONCOHERENT
280 select SYS_SUPPORTS_32BIT_KERNEL
281 select SYS_SUPPORTS_LITTLE_ENDIAN
282 select SYS_SUPPORTS_BIG_ENDIAN
283 select SYS_SUPPORTS_HIGHMEM
284 select SYS_HAS_CPU_BMIPS32_3300
285 select SYS_HAS_CPU_BMIPS4350
286 select SYS_HAS_CPU_BMIPS4380
287 select SYS_HAS_CPU_BMIPS5000
288 select SWAP_IO_SPACE
289 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
290 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
291 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
292 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
293 select HARDIRQS_SW_RESEND
294 help
295 Build a generic DT-based kernel image that boots on select
296 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
297 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
298 must be set appropriately for your board.
299
300config BCM47XX
301 bool "Broadcom BCM47XX based boards"
302 select BOOT_RAW
303 select CEVT_R4K
304 select CSRC_R4K
305 select DMA_NONCOHERENT
306 select HAVE_PCI
307 select IRQ_MIPS_CPU
308 select SYS_HAS_CPU_MIPS32_R1
309 select NO_EXCEPT_FILL
310 select SYS_SUPPORTS_32BIT_KERNEL
311 select SYS_SUPPORTS_LITTLE_ENDIAN
312 select SYS_SUPPORTS_MIPS16
313 select SYS_SUPPORTS_ZBOOT
314 select SYS_HAS_EARLY_PRINTK
315 select USE_GENERIC_EARLY_PRINTK_8250
316 select GPIOLIB
317 select LEDS_GPIO_REGISTER
318 select BCM47XX_NVRAM
319 select BCM47XX_SPROM
320 select BCM47XX_SSB if !BCM47XX_BCMA
321 help
322 Support for BCM47XX based boards
323
324config BCM63XX
325 bool "Broadcom BCM63XX based boards"
326 select BOOT_RAW
327 select CEVT_R4K
328 select CSRC_R4K
329 select SYNC_R4K
330 select DMA_NONCOHERENT
331 select IRQ_MIPS_CPU
332 select SYS_SUPPORTS_32BIT_KERNEL
333 select SYS_SUPPORTS_BIG_ENDIAN
334 select SYS_HAS_EARLY_PRINTK
335 select SWAP_IO_SPACE
336 select GPIOLIB
337 select MIPS_L1_CACHE_SHIFT_4
338 select HAVE_LEGACY_CLK
339 help
340 Support for BCM63XX based boards
341
342config MIPS_COBALT
343 bool "Cobalt Server"
344 select CEVT_R4K
345 select CSRC_R4K
346 select CEVT_GT641XX
347 select DMA_NONCOHERENT
348 select FORCE_PCI
349 select I8253
350 select I8259
351 select IRQ_MIPS_CPU
352 select IRQ_GT641XX
353 select PCI_GT64XXX_PCI0
354 select SYS_HAS_CPU_NEVADA
355 select SYS_HAS_EARLY_PRINTK
356 select SYS_SUPPORTS_32BIT_KERNEL
357 select SYS_SUPPORTS_64BIT_KERNEL
358 select SYS_SUPPORTS_LITTLE_ENDIAN
359 select USE_GENERIC_EARLY_PRINTK_8250
360
361config MACH_DECSTATION
362 bool "DECstations"
363 select BOOT_ELF32
364 select CEVT_DS1287
365 select CEVT_R4K if CPU_R4X00
366 select CSRC_IOASIC
367 select CSRC_R4K if CPU_R4X00
368 select CPU_DADDI_WORKAROUNDS if 64BIT
369 select CPU_R4000_WORKAROUNDS if 64BIT
370 select CPU_R4400_WORKAROUNDS if 64BIT
371 select DMA_NONCOHERENT
372 select NO_IOPORT_MAP
373 select IRQ_MIPS_CPU
374 select SYS_HAS_CPU_R3000
375 select SYS_HAS_CPU_R4X00
376 select SYS_SUPPORTS_32BIT_KERNEL
377 select SYS_SUPPORTS_64BIT_KERNEL
378 select SYS_SUPPORTS_LITTLE_ENDIAN
379 select SYS_SUPPORTS_128HZ
380 select SYS_SUPPORTS_256HZ
381 select SYS_SUPPORTS_1024HZ
382 select MIPS_L1_CACHE_SHIFT_4
383 help
384 This enables support for DEC's MIPS based workstations. For details
385 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
386 DECstation porting pages on <http://decstation.unix-ag.org/>.
387
388 If you have one of the following DECstation Models you definitely
389 want to choose R4xx0 for the CPU Type:
390
391 DECstation 5000/50
392 DECstation 5000/150
393 DECstation 5000/260
394 DECsystem 5900/260
395
396 otherwise choose R3000.
397
398config MACH_JAZZ
399 bool "Jazz family of machines"
400 select ARC_MEMORY
401 select ARC_PROMLIB
402 select ARCH_MIGHT_HAVE_PC_PARPORT
403 select ARCH_MIGHT_HAVE_PC_SERIO
404 select DMA_OPS
405 select FW_ARC
406 select FW_ARC32
407 select ARCH_MAY_HAVE_PC_FDC
408 select CEVT_R4K
409 select CSRC_R4K
410 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
411 select GENERIC_ISA_DMA
412 select HAVE_PCSPKR_PLATFORM
413 select IRQ_MIPS_CPU
414 select I8253
415 select I8259
416 select ISA
417 select SYS_HAS_CPU_R4X00
418 select SYS_SUPPORTS_32BIT_KERNEL
419 select SYS_SUPPORTS_64BIT_KERNEL
420 select SYS_SUPPORTS_100HZ
421 select SYS_SUPPORTS_LITTLE_ENDIAN
422 help
423 This a family of machines based on the MIPS R4030 chipset which was
424 used by several vendors to build RISC/os and Windows NT workstations.
425 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
426 Olivetti M700-10 workstations.
427
428config MACH_INGENIC_SOC
429 bool "Ingenic SoC based machines"
430 select MIPS_GENERIC
431 select MACH_INGENIC
432 select SYS_SUPPORTS_ZBOOT_UART16550
433 select CPU_SUPPORTS_CPUFREQ
434 select MIPS_EXTERNAL_TIMER
435
436config LANTIQ
437 bool "Lantiq based platforms"
438 select DMA_NONCOHERENT
439 select IRQ_MIPS_CPU
440 select CEVT_R4K
441 select CSRC_R4K
442 select SYS_HAS_CPU_MIPS32_R1
443 select SYS_HAS_CPU_MIPS32_R2
444 select SYS_SUPPORTS_BIG_ENDIAN
445 select SYS_SUPPORTS_32BIT_KERNEL
446 select SYS_SUPPORTS_MIPS16
447 select SYS_SUPPORTS_MULTITHREADING
448 select SYS_SUPPORTS_VPE_LOADER
449 select SYS_HAS_EARLY_PRINTK
450 select GPIOLIB
451 select SWAP_IO_SPACE
452 select BOOT_RAW
453 select HAVE_LEGACY_CLK
454 select USE_OF
455 select PINCTRL
456 select PINCTRL_LANTIQ
457 select ARCH_HAS_RESET_CONTROLLER
458 select RESET_CONTROLLER
459
460config MACH_LOONGSON32
461 bool "Loongson 32-bit family of machines"
462 select SYS_SUPPORTS_ZBOOT
463 help
464 This enables support for the Loongson-1 family of machines.
465
466 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
467 the Institute of Computing Technology (ICT), Chinese Academy of
468 Sciences (CAS).
469
470config MACH_LOONGSON2EF
471 bool "Loongson-2E/F family of machines"
472 select SYS_SUPPORTS_ZBOOT
473 help
474 This enables the support of early Loongson-2E/F family of machines.
475
476config MACH_LOONGSON64
477 bool "Loongson 64-bit family of machines"
478 select ARCH_SPARSEMEM_ENABLE
479 select ARCH_MIGHT_HAVE_PC_PARPORT
480 select ARCH_MIGHT_HAVE_PC_SERIO
481 select GENERIC_ISA_DMA_SUPPORT_BROKEN
482 select BOOT_ELF32
483 select BOARD_SCACHE
484 select CSRC_R4K
485 select CEVT_R4K
486 select CPU_HAS_WB
487 select FORCE_PCI
488 select ISA
489 select I8259
490 select IRQ_MIPS_CPU
491 select NO_EXCEPT_FILL
492 select NR_CPUS_DEFAULT_64
493 select USE_GENERIC_EARLY_PRINTK_8250
494 select PCI_DRIVERS_GENERIC
495 select SYS_HAS_CPU_LOONGSON64
496 select SYS_HAS_EARLY_PRINTK
497 select SYS_SUPPORTS_SMP
498 select SYS_SUPPORTS_HOTPLUG_CPU
499 select SYS_SUPPORTS_NUMA
500 select SYS_SUPPORTS_64BIT_KERNEL
501 select SYS_SUPPORTS_HIGHMEM
502 select SYS_SUPPORTS_LITTLE_ENDIAN
503 select SYS_SUPPORTS_ZBOOT
504 select SYS_SUPPORTS_RELOCATABLE
505 select ZONE_DMA32
506 select COMMON_CLK
507 select USE_OF
508 select BUILTIN_DTB
509 select PCI_HOST_GENERIC
510 help
511 This enables the support of Loongson-2/3 family of machines.
512
513 Loongson-2 and Loongson-3 are 64-bit general-purpose processors with
514 GS264/GS464/GS464E/GS464V microarchitecture (except old Loongson-2E
515 and Loongson-2F which will be removed), developed by the Institute
516 of Computing Technology (ICT), Chinese Academy of Sciences (CAS).
517
518config MIPS_MALTA
519 bool "MIPS Malta board"
520 select ARCH_MAY_HAVE_PC_FDC
521 select ARCH_MIGHT_HAVE_PC_PARPORT
522 select ARCH_MIGHT_HAVE_PC_SERIO
523 select BOOT_ELF32
524 select BOOT_RAW
525 select BUILTIN_DTB
526 select CEVT_R4K
527 select CLKSRC_MIPS_GIC
528 select COMMON_CLK
529 select CSRC_R4K
530 select DMA_NONCOHERENT
531 select GENERIC_ISA_DMA
532 select HAVE_PCSPKR_PLATFORM
533 select HAVE_PCI
534 select I8253
535 select I8259
536 select IRQ_MIPS_CPU
537 select MIPS_BONITO64
538 select MIPS_CPU_SCACHE
539 select MIPS_GIC
540 select MIPS_L1_CACHE_SHIFT_6
541 select MIPS_MSC
542 select PCI_GT64XXX_PCI0
543 select SMP_UP if SMP
544 select SWAP_IO_SPACE
545 select SYS_HAS_CPU_MIPS32_R1
546 select SYS_HAS_CPU_MIPS32_R2
547 select SYS_HAS_CPU_MIPS32_R3_5
548 select SYS_HAS_CPU_MIPS32_R5
549 select SYS_HAS_CPU_MIPS32_R6
550 select SYS_HAS_CPU_MIPS64_R1
551 select SYS_HAS_CPU_MIPS64_R2
552 select SYS_HAS_CPU_MIPS64_R6
553 select SYS_HAS_CPU_NEVADA
554 select SYS_HAS_CPU_RM7000
555 select SYS_SUPPORTS_32BIT_KERNEL
556 select SYS_SUPPORTS_64BIT_KERNEL
557 select SYS_SUPPORTS_BIG_ENDIAN
558 select SYS_SUPPORTS_HIGHMEM
559 select SYS_SUPPORTS_LITTLE_ENDIAN
560 select SYS_SUPPORTS_MICROMIPS
561 select SYS_SUPPORTS_MIPS16
562 select SYS_SUPPORTS_MIPS_CMP
563 select SYS_SUPPORTS_MIPS_CPS
564 select SYS_SUPPORTS_MULTITHREADING
565 select SYS_SUPPORTS_RELOCATABLE
566 select SYS_SUPPORTS_SMARTMIPS
567 select SYS_SUPPORTS_VPE_LOADER
568 select SYS_SUPPORTS_ZBOOT
569 select USE_OF
570 select WAR_ICACHE_REFILLS
571 select ZONE_DMA32 if 64BIT
572 help
573 This enables support for the MIPS Technologies Malta evaluation
574 board.
575
576config MACH_PIC32
577 bool "Microchip PIC32 Family"
578 help
579 This enables support for the Microchip PIC32 family of platforms.
580
581 Microchip PIC32 is a family of general-purpose 32 bit MIPS core
582 microcontrollers.
583
584config MACH_VR41XX
585 bool "NEC VR4100 series based machines"
586 select CEVT_R4K
587 select CSRC_R4K
588 select SYS_HAS_CPU_VR41XX
589 select SYS_SUPPORTS_MIPS16
590 select GPIOLIB
591
592config MACH_NINTENDO64
593 bool "Nintendo 64 console"
594 select CEVT_R4K
595 select CSRC_R4K
596 select SYS_HAS_CPU_R4300
597 select SYS_SUPPORTS_BIG_ENDIAN
598 select SYS_SUPPORTS_ZBOOT
599 select SYS_SUPPORTS_32BIT_KERNEL
600 select SYS_SUPPORTS_64BIT_KERNEL
601 select DMA_NONCOHERENT
602 select IRQ_MIPS_CPU
603
604config RALINK
605 bool "Ralink based machines"
606 select CEVT_R4K
607 select COMMON_CLK
608 select CSRC_R4K
609 select BOOT_RAW
610 select DMA_NONCOHERENT
611 select IRQ_MIPS_CPU
612 select USE_OF
613 select SYS_HAS_CPU_MIPS32_R1
614 select SYS_HAS_CPU_MIPS32_R2
615 select SYS_SUPPORTS_32BIT_KERNEL
616 select SYS_SUPPORTS_LITTLE_ENDIAN
617 select SYS_SUPPORTS_MIPS16
618 select SYS_SUPPORTS_ZBOOT
619 select SYS_HAS_EARLY_PRINTK
620 select ARCH_HAS_RESET_CONTROLLER
621 select RESET_CONTROLLER
622
623config MACH_REALTEK_RTL
624 bool "Realtek RTL838x/RTL839x based machines"
625 select MIPS_GENERIC
626 select DMA_NONCOHERENT
627 select IRQ_MIPS_CPU
628 select CSRC_R4K
629 select CEVT_R4K
630 select SYS_HAS_CPU_MIPS32_R1
631 select SYS_HAS_CPU_MIPS32_R2
632 select SYS_SUPPORTS_BIG_ENDIAN
633 select SYS_SUPPORTS_32BIT_KERNEL
634 select SYS_SUPPORTS_MIPS16
635 select SYS_SUPPORTS_MULTITHREADING
636 select SYS_SUPPORTS_VPE_LOADER
637 select SYS_HAS_EARLY_PRINTK
638 select SYS_HAS_EARLY_PRINTK_8250
639 select USE_GENERIC_EARLY_PRINTK_8250
640 select BOOT_RAW
641 select PINCTRL
642 select USE_OF
643
644config SGI_IP22
645 bool "SGI IP22 (Indy/Indigo2)"
646 select ARC_MEMORY
647 select ARC_PROMLIB
648 select FW_ARC
649 select FW_ARC32
650 select ARCH_MIGHT_HAVE_PC_SERIO
651 select BOOT_ELF32
652 select CEVT_R4K
653 select CSRC_R4K
654 select DEFAULT_SGI_PARTITION
655 select DMA_NONCOHERENT
656 select HAVE_EISA
657 select I8253
658 select I8259
659 select IP22_CPU_SCACHE
660 select IRQ_MIPS_CPU
661 select GENERIC_ISA_DMA_SUPPORT_BROKEN
662 select SGI_HAS_I8042
663 select SGI_HAS_INDYDOG
664 select SGI_HAS_HAL2
665 select SGI_HAS_SEEQ
666 select SGI_HAS_WD93
667 select SGI_HAS_ZILOG
668 select SWAP_IO_SPACE
669 select SYS_HAS_CPU_R4X00
670 select SYS_HAS_CPU_R5000
671 select SYS_HAS_EARLY_PRINTK
672 select SYS_SUPPORTS_32BIT_KERNEL
673 select SYS_SUPPORTS_64BIT_KERNEL
674 select SYS_SUPPORTS_BIG_ENDIAN
675 select WAR_R4600_V1_INDEX_ICACHEOP
676 select WAR_R4600_V1_HIT_CACHEOP
677 select WAR_R4600_V2_HIT_CACHEOP
678 select MIPS_L1_CACHE_SHIFT_7
679 help
680 This are the SGI Indy, Challenge S and Indigo2, as well as certain
681 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
682 that runs on these, say Y here.
683
684config SGI_IP27
685 bool "SGI IP27 (Origin200/2000)"
686 select ARCH_HAS_PHYS_TO_DMA
687 select ARCH_SPARSEMEM_ENABLE
688 select FW_ARC
689 select FW_ARC64
690 select ARC_CMDLINE_ONLY
691 select BOOT_ELF64
692 select DEFAULT_SGI_PARTITION
693 select FORCE_PCI
694 select SYS_HAS_EARLY_PRINTK
695 select HAVE_PCI
696 select IRQ_MIPS_CPU
697 select IRQ_DOMAIN_HIERARCHY
698 select NR_CPUS_DEFAULT_64
699 select PCI_DRIVERS_GENERIC
700 select PCI_XTALK_BRIDGE
701 select SYS_HAS_CPU_R10000
702 select SYS_SUPPORTS_64BIT_KERNEL
703 select SYS_SUPPORTS_BIG_ENDIAN
704 select SYS_SUPPORTS_NUMA
705 select SYS_SUPPORTS_SMP
706 select WAR_R10000_LLSC
707 select MIPS_L1_CACHE_SHIFT_7
708 select NUMA
709 help
710 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
711 workstations. To compile a Linux kernel that runs on these, say Y
712 here.
713
714config SGI_IP28
715 bool "SGI IP28 (Indigo2 R10k)"
716 select ARC_MEMORY
717 select ARC_PROMLIB
718 select FW_ARC
719 select FW_ARC64
720 select ARCH_MIGHT_HAVE_PC_SERIO
721 select BOOT_ELF64
722 select CEVT_R4K
723 select CSRC_R4K
724 select DEFAULT_SGI_PARTITION
725 select DMA_NONCOHERENT
726 select GENERIC_ISA_DMA_SUPPORT_BROKEN
727 select IRQ_MIPS_CPU
728 select HAVE_EISA
729 select I8253
730 select I8259
731 select SGI_HAS_I8042
732 select SGI_HAS_INDYDOG
733 select SGI_HAS_HAL2
734 select SGI_HAS_SEEQ
735 select SGI_HAS_WD93
736 select SGI_HAS_ZILOG
737 select SWAP_IO_SPACE
738 select SYS_HAS_CPU_R10000
739 select SYS_HAS_EARLY_PRINTK
740 select SYS_SUPPORTS_64BIT_KERNEL
741 select SYS_SUPPORTS_BIG_ENDIAN
742 select WAR_R10000_LLSC
743 select MIPS_L1_CACHE_SHIFT_7
744 help
745 This is the SGI Indigo2 with R10000 processor. To compile a Linux
746 kernel that runs on these, say Y here.
747
748config SGI_IP30
749 bool "SGI IP30 (Octane/Octane2)"
750 select ARCH_HAS_PHYS_TO_DMA
751 select FW_ARC
752 select FW_ARC64
753 select BOOT_ELF64
754 select CEVT_R4K
755 select CSRC_R4K
756 select FORCE_PCI
757 select SYNC_R4K if SMP
758 select ZONE_DMA32
759 select HAVE_PCI
760 select IRQ_MIPS_CPU
761 select IRQ_DOMAIN_HIERARCHY
762 select NR_CPUS_DEFAULT_2
763 select PCI_DRIVERS_GENERIC
764 select PCI_XTALK_BRIDGE
765 select SYS_HAS_EARLY_PRINTK
766 select SYS_HAS_CPU_R10000
767 select SYS_SUPPORTS_64BIT_KERNEL
768 select SYS_SUPPORTS_BIG_ENDIAN
769 select SYS_SUPPORTS_SMP
770 select WAR_R10000_LLSC
771 select MIPS_L1_CACHE_SHIFT_7
772 select ARC_MEMORY
773 help
774 These are the SGI Octane and Octane2 graphics workstations. To
775 compile a Linux kernel that runs on these, say Y here.
776
777config SGI_IP32
778 bool "SGI IP32 (O2)"
779 select ARC_MEMORY
780 select ARC_PROMLIB
781 select ARCH_HAS_PHYS_TO_DMA
782 select FW_ARC
783 select FW_ARC32
784 select BOOT_ELF32
785 select CEVT_R4K
786 select CSRC_R4K
787 select DMA_NONCOHERENT
788 select HAVE_PCI
789 select IRQ_MIPS_CPU
790 select R5000_CPU_SCACHE
791 select RM7000_CPU_SCACHE
792 select SYS_HAS_CPU_R5000
793 select SYS_HAS_CPU_R10000 if BROKEN
794 select SYS_HAS_CPU_RM7000
795 select SYS_HAS_CPU_NEVADA
796 select SYS_SUPPORTS_64BIT_KERNEL
797 select SYS_SUPPORTS_BIG_ENDIAN
798 select WAR_ICACHE_REFILLS
799 help
800 If you want this kernel to run on SGI O2 workstation, say Y here.
801
802config SIBYTE_CRHINE
803 bool "Sibyte BCM91120C-CRhine"
804 select BOOT_ELF32
805 select SIBYTE_BCM1120
806 select SWAP_IO_SPACE
807 select SYS_HAS_CPU_SB1
808 select SYS_SUPPORTS_BIG_ENDIAN
809 select SYS_SUPPORTS_LITTLE_ENDIAN
810
811config SIBYTE_CARMEL
812 bool "Sibyte BCM91120x-Carmel"
813 select BOOT_ELF32
814 select SIBYTE_BCM1120
815 select SWAP_IO_SPACE
816 select SYS_HAS_CPU_SB1
817 select SYS_SUPPORTS_BIG_ENDIAN
818 select SYS_SUPPORTS_LITTLE_ENDIAN
819
820config SIBYTE_CRHONE
821 bool "Sibyte BCM91125C-CRhone"
822 select BOOT_ELF32
823 select SIBYTE_BCM1125
824 select SWAP_IO_SPACE
825 select SYS_HAS_CPU_SB1
826 select SYS_SUPPORTS_BIG_ENDIAN
827 select SYS_SUPPORTS_HIGHMEM
828 select SYS_SUPPORTS_LITTLE_ENDIAN
829
830config SIBYTE_RHONE
831 bool "Sibyte BCM91125E-Rhone"
832 select BOOT_ELF32
833 select SIBYTE_BCM1125H
834 select SWAP_IO_SPACE
835 select SYS_HAS_CPU_SB1
836 select SYS_SUPPORTS_BIG_ENDIAN
837 select SYS_SUPPORTS_LITTLE_ENDIAN
838
839config SIBYTE_SWARM
840 bool "Sibyte BCM91250A-SWARM"
841 select BOOT_ELF32
842 select HAVE_PATA_PLATFORM
843 select SIBYTE_SB1250
844 select SWAP_IO_SPACE
845 select SYS_HAS_CPU_SB1
846 select SYS_SUPPORTS_BIG_ENDIAN
847 select SYS_SUPPORTS_HIGHMEM
848 select SYS_SUPPORTS_LITTLE_ENDIAN
849 select ZONE_DMA32 if 64BIT
850 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
851
852config SIBYTE_LITTLESUR
853 bool "Sibyte BCM91250C2-LittleSur"
854 select BOOT_ELF32
855 select HAVE_PATA_PLATFORM
856 select SIBYTE_SB1250
857 select SWAP_IO_SPACE
858 select SYS_HAS_CPU_SB1
859 select SYS_SUPPORTS_BIG_ENDIAN
860 select SYS_SUPPORTS_HIGHMEM
861 select SYS_SUPPORTS_LITTLE_ENDIAN
862 select ZONE_DMA32 if 64BIT
863
864config SIBYTE_SENTOSA
865 bool "Sibyte BCM91250E-Sentosa"
866 select BOOT_ELF32
867 select SIBYTE_SB1250
868 select SWAP_IO_SPACE
869 select SYS_HAS_CPU_SB1
870 select SYS_SUPPORTS_BIG_ENDIAN
871 select SYS_SUPPORTS_LITTLE_ENDIAN
872 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
873
874config SIBYTE_BIGSUR
875 bool "Sibyte BCM91480B-BigSur"
876 select BOOT_ELF32
877 select NR_CPUS_DEFAULT_4
878 select SIBYTE_BCM1x80
879 select SWAP_IO_SPACE
880 select SYS_HAS_CPU_SB1
881 select SYS_SUPPORTS_BIG_ENDIAN
882 select SYS_SUPPORTS_HIGHMEM
883 select SYS_SUPPORTS_LITTLE_ENDIAN
884 select ZONE_DMA32 if 64BIT
885 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
886
887config SNI_RM
888 bool "SNI RM200/300/400"
889 select ARC_MEMORY
890 select ARC_PROMLIB
891 select FW_ARC if CPU_LITTLE_ENDIAN
892 select FW_ARC32 if CPU_LITTLE_ENDIAN
893 select FW_SNIPROM if CPU_BIG_ENDIAN
894 select ARCH_MAY_HAVE_PC_FDC
895 select ARCH_MIGHT_HAVE_PC_PARPORT
896 select ARCH_MIGHT_HAVE_PC_SERIO
897 select BOOT_ELF32
898 select CEVT_R4K
899 select CSRC_R4K
900 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
901 select DMA_NONCOHERENT
902 select GENERIC_ISA_DMA
903 select HAVE_EISA
904 select HAVE_PCSPKR_PLATFORM
905 select HAVE_PCI
906 select IRQ_MIPS_CPU
907 select I8253
908 select I8259
909 select ISA
910 select MIPS_L1_CACHE_SHIFT_6
911 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
912 select SYS_HAS_CPU_R4X00
913 select SYS_HAS_CPU_R5000
914 select SYS_HAS_CPU_R10000
915 select R5000_CPU_SCACHE
916 select SYS_HAS_EARLY_PRINTK
917 select SYS_SUPPORTS_32BIT_KERNEL
918 select SYS_SUPPORTS_64BIT_KERNEL
919 select SYS_SUPPORTS_BIG_ENDIAN
920 select SYS_SUPPORTS_HIGHMEM
921 select SYS_SUPPORTS_LITTLE_ENDIAN
922 select WAR_R4600_V2_HIT_CACHEOP
923 help
924 The SNI RM200/300/400 are MIPS-based machines manufactured by
925 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
926 Technology and now in turn merged with Fujitsu. Say Y here to
927 support this machine type.
928
929config MACH_TX39XX
930 bool "Toshiba TX39 series based machines"
931
932config MACH_TX49XX
933 bool "Toshiba TX49 series based machines"
934 select WAR_TX49XX_ICACHE_INDEX_INV
935
936config MIKROTIK_RB532
937 bool "Mikrotik RB532 boards"
938 select CEVT_R4K
939 select CSRC_R4K
940 select DMA_NONCOHERENT
941 select HAVE_PCI
942 select IRQ_MIPS_CPU
943 select SYS_HAS_CPU_MIPS32_R1
944 select SYS_SUPPORTS_32BIT_KERNEL
945 select SYS_SUPPORTS_LITTLE_ENDIAN
946 select SWAP_IO_SPACE
947 select BOOT_RAW
948 select GPIOLIB
949 select MIPS_L1_CACHE_SHIFT_4
950 help
951 Support the Mikrotik(tm) RouterBoard 532 series,
952 based on the IDT RC32434 SoC.
953
954config CAVIUM_OCTEON_SOC
955 bool "Cavium Networks Octeon SoC based boards"
956 select CEVT_R4K
957 select ARCH_HAS_PHYS_TO_DMA
958 select HAVE_RAPIDIO
959 select PHYS_ADDR_T_64BIT
960 select SYS_SUPPORTS_64BIT_KERNEL
961 select SYS_SUPPORTS_BIG_ENDIAN
962 select EDAC_SUPPORT
963 select EDAC_ATOMIC_SCRUB
964 select SYS_SUPPORTS_LITTLE_ENDIAN
965 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
966 select SYS_HAS_EARLY_PRINTK
967 select SYS_HAS_CPU_CAVIUM_OCTEON
968 select HAVE_PCI
969 select HAVE_PLAT_DELAY
970 select HAVE_PLAT_FW_INIT_CMDLINE
971 select HAVE_PLAT_MEMCPY
972 select ZONE_DMA32
973 select GPIOLIB
974 select USE_OF
975 select ARCH_SPARSEMEM_ENABLE
976 select SYS_SUPPORTS_SMP
977 select NR_CPUS_DEFAULT_64
978 select MIPS_NR_CPU_NR_MAP_1024
979 select BUILTIN_DTB
980 select MTD
981 select MTD_COMPLEX_MAPPINGS
982 select SWIOTLB
983 select SYS_SUPPORTS_RELOCATABLE
984 help
985 This option supports all of the Octeon reference boards from Cavium
986 Networks. It builds a kernel that dynamically determines the Octeon
987 CPU type and supports all known board reference implementations.
988 Some of the supported boards are:
989 EBT3000
990 EBH3000
991 EBH3100
992 Thunder
993 Kodama
994 Hikari
995 Say Y here for most Octeon reference boards.
996
997config NLM_XLR_BOARD
998 bool "Netlogic XLR/XLS based systems"
999 select BOOT_ELF32
1000 select NLM_COMMON
1001 select SYS_HAS_CPU_XLR
1002 select SYS_SUPPORTS_SMP
1003 select HAVE_PCI
1004 select SWAP_IO_SPACE
1005 select SYS_SUPPORTS_32BIT_KERNEL
1006 select SYS_SUPPORTS_64BIT_KERNEL
1007 select PHYS_ADDR_T_64BIT
1008 select SYS_SUPPORTS_BIG_ENDIAN
1009 select SYS_SUPPORTS_HIGHMEM
1010 select NR_CPUS_DEFAULT_32
1011 select CEVT_R4K
1012 select CSRC_R4K
1013 select IRQ_MIPS_CPU
1014 select ZONE_DMA32 if 64BIT
1015 select SYNC_R4K
1016 select SYS_HAS_EARLY_PRINTK
1017 select SYS_SUPPORTS_ZBOOT
1018 select SYS_SUPPORTS_ZBOOT_UART16550
1019 help
1020 Support for systems based on Netlogic XLR and XLS processors.
1021 Say Y here if you have a XLR or XLS based board.
1022
1023config NLM_XLP_BOARD
1024 bool "Netlogic XLP based systems"
1025 select BOOT_ELF32
1026 select NLM_COMMON
1027 select SYS_HAS_CPU_XLP
1028 select SYS_SUPPORTS_SMP
1029 select HAVE_PCI
1030 select SYS_SUPPORTS_32BIT_KERNEL
1031 select SYS_SUPPORTS_64BIT_KERNEL
1032 select PHYS_ADDR_T_64BIT
1033 select GPIOLIB
1034 select SYS_SUPPORTS_BIG_ENDIAN
1035 select SYS_SUPPORTS_LITTLE_ENDIAN
1036 select SYS_SUPPORTS_HIGHMEM
1037 select NR_CPUS_DEFAULT_32
1038 select CEVT_R4K
1039 select CSRC_R4K
1040 select IRQ_MIPS_CPU
1041 select ZONE_DMA32 if 64BIT
1042 select SYNC_R4K
1043 select SYS_HAS_EARLY_PRINTK
1044 select USE_OF
1045 select SYS_SUPPORTS_ZBOOT
1046 select SYS_SUPPORTS_ZBOOT_UART16550
1047 help
1048 This board is based on Netlogic XLP Processor.
1049 Say Y here if you have a XLP based board.
1050
1051endchoice
1052
1053source "arch/mips/alchemy/Kconfig"
1054source "arch/mips/ath25/Kconfig"
1055source "arch/mips/ath79/Kconfig"
1056source "arch/mips/bcm47xx/Kconfig"
1057source "arch/mips/bcm63xx/Kconfig"
1058source "arch/mips/bmips/Kconfig"
1059source "arch/mips/generic/Kconfig"
1060source "arch/mips/ingenic/Kconfig"
1061source "arch/mips/jazz/Kconfig"
1062source "arch/mips/lantiq/Kconfig"
1063source "arch/mips/pic32/Kconfig"
1064source "arch/mips/ralink/Kconfig"
1065source "arch/mips/sgi-ip27/Kconfig"
1066source "arch/mips/sibyte/Kconfig"
1067source "arch/mips/txx9/Kconfig"
1068source "arch/mips/vr41xx/Kconfig"
1069source "arch/mips/cavium-octeon/Kconfig"
1070source "arch/mips/loongson2ef/Kconfig"
1071source "arch/mips/loongson32/Kconfig"
1072source "arch/mips/loongson64/Kconfig"
1073source "arch/mips/netlogic/Kconfig"
1074
1075endmenu
1076
1077config GENERIC_HWEIGHT
1078 bool
1079 default y
1080
1081config GENERIC_CALIBRATE_DELAY
1082 bool
1083 default y
1084
1085config SCHED_OMIT_FRAME_POINTER
1086 bool
1087 default y
1088
1089
1090
1091
1092config FW_ARC
1093 bool
1094
1095config ARCH_MAY_HAVE_PC_FDC
1096 bool
1097
1098config BOOT_RAW
1099 bool
1100
1101config CEVT_BCM1480
1102 bool
1103
1104config CEVT_DS1287
1105 bool
1106
1107config CEVT_GT641XX
1108 bool
1109
1110config CEVT_R4K
1111 bool
1112
1113config CEVT_SB1250
1114 bool
1115
1116config CEVT_TXX9
1117 bool
1118
1119config CSRC_BCM1480
1120 bool
1121
1122config CSRC_IOASIC
1123 bool
1124
1125config CSRC_R4K
1126 select CLOCKSOURCE_WATCHDOG if CPU_FREQ
1127 bool
1128
1129config CSRC_SB1250
1130 bool
1131
1132config MIPS_CLOCK_VSYSCALL
1133 def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1134
1135config GPIO_TXX9
1136 select GPIOLIB
1137 bool
1138
1139config FW_CFE
1140 bool
1141
1142config ARCH_SUPPORTS_UPROBES
1143 bool
1144
1145config DMA_PERDEV_COHERENT
1146 bool
1147 select ARCH_HAS_SETUP_DMA_OPS
1148 select DMA_NONCOHERENT
1149
1150config DMA_NONCOHERENT
1151 bool
1152
1153
1154
1155
1156
1157
1158
1159 select ARCH_HAS_DMA_WRITE_COMBINE
1160 select ARCH_HAS_DMA_PREP_COHERENT
1161 select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1162 select ARCH_HAS_DMA_SET_UNCACHED
1163 select DMA_NONCOHERENT_MMAP
1164 select NEED_DMA_MAP_STATE
1165
1166config SYS_HAS_EARLY_PRINTK
1167 bool
1168
1169config SYS_SUPPORTS_HOTPLUG_CPU
1170 bool
1171
1172config MIPS_BONITO64
1173 bool
1174
1175config MIPS_MSC
1176 bool
1177
1178config SYNC_R4K
1179 bool
1180
1181config NO_IOPORT_MAP
1182 def_bool n
1183
1184config GENERIC_CSUM
1185 def_bool CPU_NO_LOAD_STORE_LR
1186
1187config GENERIC_ISA_DMA
1188 bool
1189 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1190 select ISA_DMA_API
1191
1192config GENERIC_ISA_DMA_SUPPORT_BROKEN
1193 bool
1194 select GENERIC_ISA_DMA
1195
1196config HAVE_PLAT_DELAY
1197 bool
1198
1199config HAVE_PLAT_FW_INIT_CMDLINE
1200 bool
1201
1202config HAVE_PLAT_MEMCPY
1203 bool
1204
1205config ISA_DMA_API
1206 bool
1207
1208config SYS_SUPPORTS_RELOCATABLE
1209 bool
1210 help
1211 Selected if the platform supports relocating the kernel.
1212 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1213 to allow access to command line and entropy sources.
1214
1215config MIPS_CBPF_JIT
1216 def_bool y
1217 depends on BPF_JIT && HAVE_CBPF_JIT
1218
1219config MIPS_EBPF_JIT
1220 def_bool y
1221 depends on BPF_JIT && HAVE_EBPF_JIT
1222
1223
1224
1225
1226
1227
1228
1229choice
1230 prompt "Endianness selection"
1231 help
1232 Some MIPS machines can be configured for either little or big endian
1233 byte order. These modes require different kernels and a different
1234 Linux distribution. In general there is one preferred byteorder for a
1235 particular system but some systems are just as commonly used in the
1236 one or the other endianness.
1237
1238config CPU_BIG_ENDIAN
1239 bool "Big endian"
1240 depends on SYS_SUPPORTS_BIG_ENDIAN
1241
1242config CPU_LITTLE_ENDIAN
1243 bool "Little endian"
1244 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1245
1246endchoice
1247
1248config EXPORT_UASM
1249 bool
1250
1251config SYS_SUPPORTS_APM_EMULATION
1252 bool
1253
1254config SYS_SUPPORTS_BIG_ENDIAN
1255 bool
1256
1257config SYS_SUPPORTS_LITTLE_ENDIAN
1258 bool
1259
1260config MIPS_HUGE_TLB_SUPPORT
1261 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1262
1263config IRQ_MSP_SLP
1264 bool
1265
1266config IRQ_MSP_CIC
1267 bool
1268
1269config IRQ_TXX9
1270 bool
1271
1272config IRQ_GT641XX
1273 bool
1274
1275config PCI_GT64XXX_PCI0
1276 bool
1277
1278config PCI_XTALK_BRIDGE
1279 bool
1280
1281config NO_EXCEPT_FILL
1282 bool
1283
1284config MIPS_SPRAM
1285 bool
1286
1287config SWAP_IO_SPACE
1288 bool
1289
1290config SGI_HAS_INDYDOG
1291 bool
1292
1293config SGI_HAS_HAL2
1294 bool
1295
1296config SGI_HAS_SEEQ
1297 bool
1298
1299config SGI_HAS_WD93
1300 bool
1301
1302config SGI_HAS_ZILOG
1303 bool
1304
1305config SGI_HAS_I8042
1306 bool
1307
1308config DEFAULT_SGI_PARTITION
1309 bool
1310
1311config FW_ARC32
1312 bool
1313
1314config FW_SNIPROM
1315 bool
1316
1317config BOOT_ELF32
1318 bool
1319
1320config MIPS_L1_CACHE_SHIFT_4
1321 bool
1322
1323config MIPS_L1_CACHE_SHIFT_5
1324 bool
1325
1326config MIPS_L1_CACHE_SHIFT_6
1327 bool
1328
1329config MIPS_L1_CACHE_SHIFT_7
1330 bool
1331
1332config MIPS_L1_CACHE_SHIFT
1333 int
1334 default "7" if MIPS_L1_CACHE_SHIFT_7
1335 default "6" if MIPS_L1_CACHE_SHIFT_6
1336 default "5" if MIPS_L1_CACHE_SHIFT_5
1337 default "4" if MIPS_L1_CACHE_SHIFT_4
1338 default "5"
1339
1340config ARC_CMDLINE_ONLY
1341 bool
1342
1343config ARC_CONSOLE
1344 bool "ARC console support"
1345 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1346
1347config ARC_MEMORY
1348 bool
1349
1350config ARC_PROMLIB
1351 bool
1352
1353config FW_ARC64
1354 bool
1355
1356config BOOT_ELF64
1357 bool
1358
1359menu "CPU selection"
1360
1361choice
1362 prompt "CPU type"
1363 default CPU_R4X00
1364
1365config CPU_LOONGSON64
1366 bool "Loongson 64-bit CPU"
1367 depends on SYS_HAS_CPU_LOONGSON64
1368 select ARCH_HAS_PHYS_TO_DMA
1369 select CPU_MIPSR2
1370 select CPU_HAS_PREFETCH
1371 select CPU_SUPPORTS_64BIT_KERNEL
1372 select CPU_SUPPORTS_HIGHMEM
1373 select CPU_SUPPORTS_HUGEPAGES
1374 select CPU_SUPPORTS_MSA
1375 select CPU_DIEI_BROKEN if !LOONGSON3_ENHANCEMENT
1376 select CPU_MIPSR2_IRQ_VI
1377 select WEAK_ORDERING
1378 select WEAK_REORDERING_BEYOND_LLSC
1379 select MIPS_ASID_BITS_VARIABLE
1380 select MIPS_PGD_C0_CONTEXT
1381 select MIPS_L1_CACHE_SHIFT_6
1382 select GPIOLIB
1383 select SWIOTLB
1384 select HAVE_KVM
1385 help
1386 The Loongson GSx64(GS264/GS464/GS464E/GS464V) series of processor
1387 cores implements the MIPS64R2 instruction set with many extensions,
1388 including most 64-bit Loongson-2 (2H, 2K) and Loongson-3 (3A1000,
1389 3B1000, 3B1500, 3A2000, 3A3000 and 3A4000) processors. However, old
1390 Loongson-2E/2F is not covered here and will be removed in future.
1391
1392config LOONGSON3_ENHANCEMENT
1393 bool "New Loongson-3 CPU Enhancements"
1394 default n
1395 depends on CPU_LOONGSON64
1396 help
1397 New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A
1398 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1399 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User
1400 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1401 Fast TLB refill support, etc.
1402
1403 This option enable those enhancements which are not probed at run
1404 time. If you want a generic kernel to run on all Loongson 3 machines,
1405 please say 'N' here. If you want a high-performance kernel to run on
1406 new Loongson-3 machines only, please say 'Y' here.
1407
1408config CPU_LOONGSON3_WORKAROUNDS
1409 bool "Old Loongson-3 LLSC Workarounds"
1410 default y if SMP
1411 depends on CPU_LOONGSON64
1412 help
1413 Loongson-3 processors have the llsc issues which require workarounds.
1414 Without workarounds the system may hang unexpectedly.
1415
1416 Newer Loongson-3 will fix these issues and no workarounds are needed.
1417 The workarounds have no significant side effect on them but may
1418 decrease the performance of the system so this option should be
1419 disabled unless the kernel is intended to be run on old systems.
1420
1421 If unsure, please say Y.
1422
1423config CPU_LOONGSON3_CPUCFG_EMULATION
1424 bool "Emulate the CPUCFG instruction on older Loongson cores"
1425 default y
1426 depends on CPU_LOONGSON64
1427 help
1428 Loongson-3A R4 and newer have the CPUCFG instruction available for
1429 userland to query CPU capabilities, much like CPUID on x86. This
1430 option provides emulation of the instruction on older Loongson
1431 cores, back to Loongson-3A1000.
1432
1433 If unsure, please say Y.
1434
1435config CPU_LOONGSON2E
1436 bool "Loongson 2E"
1437 depends on SYS_HAS_CPU_LOONGSON2E
1438 select CPU_LOONGSON2EF
1439 help
1440 The Loongson 2E processor implements the MIPS III instruction set
1441 with many extensions.
1442
1443 It has an internal FPGA northbridge, which is compatible to
1444 bonito64.
1445
1446config CPU_LOONGSON2F
1447 bool "Loongson 2F"
1448 depends on SYS_HAS_CPU_LOONGSON2F
1449 select CPU_LOONGSON2EF
1450 select GPIOLIB
1451 help
1452 The Loongson 2F processor implements the MIPS III instruction set
1453 with many extensions.
1454
1455 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1456 have a similar programming interface with FPGA northbridge used in
1457 Loongson2E.
1458
1459config CPU_LOONGSON1B
1460 bool "Loongson 1B"
1461 depends on SYS_HAS_CPU_LOONGSON1B
1462 select CPU_LOONGSON32
1463 select LEDS_GPIO_REGISTER
1464 help
1465 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1466 Release 1 instruction set and part of the MIPS32 Release 2
1467 instruction set.
1468
1469config CPU_LOONGSON1C
1470 bool "Loongson 1C"
1471 depends on SYS_HAS_CPU_LOONGSON1C
1472 select CPU_LOONGSON32
1473 select LEDS_GPIO_REGISTER
1474 help
1475 The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1476 Release 1 instruction set and part of the MIPS32 Release 2
1477 instruction set.
1478
1479config CPU_MIPS32_R1
1480 bool "MIPS32 Release 1"
1481 depends on SYS_HAS_CPU_MIPS32_R1
1482 select CPU_HAS_PREFETCH
1483 select CPU_SUPPORTS_32BIT_KERNEL
1484 select CPU_SUPPORTS_HIGHMEM
1485 help
1486 Choose this option to build a kernel for release 1 or later of the
1487 MIPS32 architecture. Most modern embedded systems with a 32-bit
1488 MIPS processor are based on a MIPS32 processor. If you know the
1489 specific type of processor in your system, choose those that one
1490 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1491 Release 2 of the MIPS32 architecture is available since several
1492 years so chances are you even have a MIPS32 Release 2 processor
1493 in which case you should choose CPU_MIPS32_R2 instead for better
1494 performance.
1495
1496config CPU_MIPS32_R2
1497 bool "MIPS32 Release 2"
1498 depends on SYS_HAS_CPU_MIPS32_R2
1499 select CPU_HAS_PREFETCH
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_R5
1512 bool "MIPS32 Release 5"
1513 depends on SYS_HAS_CPU_MIPS32_R5
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 5 or later of the
1522 MIPS32 architecture. New MIPS processors, starting with the Warrior
1523 family, are based on a MIPS32r5 processor. If you own an older
1524 processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1525
1526config CPU_MIPS32_R6
1527 bool "MIPS32 Release 6"
1528 depends on SYS_HAS_CPU_MIPS32_R6
1529 select CPU_HAS_PREFETCH
1530 select CPU_NO_LOAD_STORE_LR
1531 select CPU_SUPPORTS_32BIT_KERNEL
1532 select CPU_SUPPORTS_HIGHMEM
1533 select CPU_SUPPORTS_MSA
1534 select HAVE_KVM
1535 select MIPS_O32_FP64_SUPPORT
1536 help
1537 Choose this option to build a kernel for release 6 or later of the
1538 MIPS32 architecture. New MIPS processors, starting with the Warrior
1539 family, are based on a MIPS32r6 processor. If you own an older
1540 processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1541
1542config CPU_MIPS64_R1
1543 bool "MIPS64 Release 1"
1544 depends on SYS_HAS_CPU_MIPS64_R1
1545 select CPU_HAS_PREFETCH
1546 select CPU_SUPPORTS_32BIT_KERNEL
1547 select CPU_SUPPORTS_64BIT_KERNEL
1548 select CPU_SUPPORTS_HIGHMEM
1549 select CPU_SUPPORTS_HUGEPAGES
1550 help
1551 Choose this option to build a kernel for release 1 or later of the
1552 MIPS64 architecture. Many modern embedded systems with a 64-bit
1553 MIPS processor are based on a MIPS64 processor. If you know the
1554 specific type of processor in your system, choose those that one
1555 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1556 Release 2 of the MIPS64 architecture is available since several
1557 years so chances are you even have a MIPS64 Release 2 processor
1558 in which case you should choose CPU_MIPS64_R2 instead for better
1559 performance.
1560
1561config CPU_MIPS64_R2
1562 bool "MIPS64 Release 2"
1563 depends on SYS_HAS_CPU_MIPS64_R2
1564 select CPU_HAS_PREFETCH
1565 select CPU_SUPPORTS_32BIT_KERNEL
1566 select CPU_SUPPORTS_64BIT_KERNEL
1567 select CPU_SUPPORTS_HIGHMEM
1568 select CPU_SUPPORTS_HUGEPAGES
1569 select CPU_SUPPORTS_MSA
1570 select HAVE_KVM
1571 help
1572 Choose this option to build a kernel for release 2 or later of the
1573 MIPS64 architecture. Many modern embedded systems with a 64-bit
1574 MIPS processor are based on a MIPS64 processor. If you know the
1575 specific type of processor in your system, choose those that one
1576 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1577
1578config CPU_MIPS64_R5
1579 bool "MIPS64 Release 5"
1580 depends on SYS_HAS_CPU_MIPS64_R5
1581 select CPU_HAS_PREFETCH
1582 select CPU_SUPPORTS_32BIT_KERNEL
1583 select CPU_SUPPORTS_64BIT_KERNEL
1584 select CPU_SUPPORTS_HIGHMEM
1585 select CPU_SUPPORTS_HUGEPAGES
1586 select CPU_SUPPORTS_MSA
1587 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1588 select HAVE_KVM
1589 help
1590 Choose this option to build a kernel for release 5 or later of the
1591 MIPS64 architecture. This is a intermediate MIPS architecture
1592 release partly implementing release 6 features. Though there is no
1593 any hardware known to be based on this release.
1594
1595config CPU_MIPS64_R6
1596 bool "MIPS64 Release 6"
1597 depends on SYS_HAS_CPU_MIPS64_R6
1598 select CPU_HAS_PREFETCH
1599 select CPU_NO_LOAD_STORE_LR
1600 select CPU_SUPPORTS_32BIT_KERNEL
1601 select CPU_SUPPORTS_64BIT_KERNEL
1602 select CPU_SUPPORTS_HIGHMEM
1603 select CPU_SUPPORTS_HUGEPAGES
1604 select CPU_SUPPORTS_MSA
1605 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1606 select HAVE_KVM
1607 help
1608 Choose this option to build a kernel for release 6 or later of the
1609 MIPS64 architecture. New MIPS processors, starting with the Warrior
1610 family, are based on a MIPS64r6 processor. If you own an older
1611 processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1612
1613config CPU_P5600
1614 bool "MIPS Warrior P5600"
1615 depends on SYS_HAS_CPU_P5600
1616 select CPU_HAS_PREFETCH
1617 select CPU_SUPPORTS_32BIT_KERNEL
1618 select CPU_SUPPORTS_HIGHMEM
1619 select CPU_SUPPORTS_MSA
1620 select CPU_SUPPORTS_CPUFREQ
1621 select CPU_MIPSR2_IRQ_VI
1622 select CPU_MIPSR2_IRQ_EI
1623 select HAVE_KVM
1624 select MIPS_O32_FP64_SUPPORT
1625 help
1626 Choose this option to build a kernel for MIPS Warrior P5600 CPU.
1627 It's based on MIPS32r5 ISA with XPA, EVA, dual/quad issue exec pipes,
1628 MMU with two-levels TLB, UCA, MSA, MDU core level features and system
1629 level features like up to six P5600 calculation cores, CM2 with L2
1630 cache, IOCU/IOMMU (though might be unused depending on the system-
1631 specific IP core configuration), GIC, CPC, virtualisation module,
1632 eJTAG and PDtrace.
1633
1634config CPU_R3000
1635 bool "R3000"
1636 depends on SYS_HAS_CPU_R3000
1637 select CPU_HAS_WB
1638 select CPU_R3K_TLB
1639 select CPU_SUPPORTS_32BIT_KERNEL
1640 select CPU_SUPPORTS_HIGHMEM
1641 help
1642 Please make sure to pick the right CPU type. Linux/MIPS is not
1643 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1644 *not* work on R4000 machines and vice versa. However, since most
1645 of the supported machines have an R4000 (or similar) CPU, R4x00
1646 might be a safe bet. If the resulting kernel does not work,
1647 try to recompile with R3000.
1648
1649config CPU_TX39XX
1650 bool "R39XX"
1651 depends on SYS_HAS_CPU_TX39XX
1652 select CPU_SUPPORTS_32BIT_KERNEL
1653 select CPU_R3K_TLB
1654
1655config CPU_VR41XX
1656 bool "R41xx"
1657 depends on SYS_HAS_CPU_VR41XX
1658 select CPU_SUPPORTS_32BIT_KERNEL
1659 select CPU_SUPPORTS_64BIT_KERNEL
1660 help
1661 The options selects support for the NEC VR4100 series of processors.
1662 Only choose this option if you have one of these processors as a
1663 kernel built with this option will not run on any other type of
1664 processor or vice versa.
1665
1666config CPU_R4300
1667 bool "R4300"
1668 depends on SYS_HAS_CPU_R4300
1669 select CPU_SUPPORTS_32BIT_KERNEL
1670 select CPU_SUPPORTS_64BIT_KERNEL
1671 select CPU_HAS_LOAD_STORE_LR
1672 help
1673 MIPS Technologies R4300-series processors.
1674
1675config CPU_R4X00
1676 bool "R4x00"
1677 depends on SYS_HAS_CPU_R4X00
1678 select CPU_SUPPORTS_32BIT_KERNEL
1679 select CPU_SUPPORTS_64BIT_KERNEL
1680 select CPU_SUPPORTS_HUGEPAGES
1681 help
1682 MIPS Technologies R4000-series processors other than 4300, including
1683 the R4000, R4400, R4600, and 4700.
1684
1685config CPU_TX49XX
1686 bool "R49XX"
1687 depends on SYS_HAS_CPU_TX49XX
1688 select CPU_HAS_PREFETCH
1689 select CPU_SUPPORTS_32BIT_KERNEL
1690 select CPU_SUPPORTS_64BIT_KERNEL
1691 select CPU_SUPPORTS_HUGEPAGES
1692
1693config CPU_R5000
1694 bool "R5000"
1695 depends on SYS_HAS_CPU_R5000
1696 select CPU_SUPPORTS_32BIT_KERNEL
1697 select CPU_SUPPORTS_64BIT_KERNEL
1698 select CPU_SUPPORTS_HUGEPAGES
1699 help
1700 MIPS Technologies R5000-series processors other than the Nevada.
1701
1702config CPU_R5500
1703 bool "R5500"
1704 depends on SYS_HAS_CPU_R5500
1705 select CPU_SUPPORTS_32BIT_KERNEL
1706 select CPU_SUPPORTS_64BIT_KERNEL
1707 select CPU_SUPPORTS_HUGEPAGES
1708 help
1709 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1710 instruction set.
1711
1712config CPU_NEVADA
1713 bool "RM52xx"
1714 depends on SYS_HAS_CPU_NEVADA
1715 select CPU_SUPPORTS_32BIT_KERNEL
1716 select CPU_SUPPORTS_64BIT_KERNEL
1717 select CPU_SUPPORTS_HUGEPAGES
1718 help
1719 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1720
1721config CPU_R10000
1722 bool "R10000"
1723 depends on SYS_HAS_CPU_R10000
1724 select CPU_HAS_PREFETCH
1725 select CPU_SUPPORTS_32BIT_KERNEL
1726 select CPU_SUPPORTS_64BIT_KERNEL
1727 select CPU_SUPPORTS_HIGHMEM
1728 select CPU_SUPPORTS_HUGEPAGES
1729 help
1730 MIPS Technologies R10000-series processors.
1731
1732config CPU_RM7000
1733 bool "RM7000"
1734 depends on SYS_HAS_CPU_RM7000
1735 select CPU_HAS_PREFETCH
1736 select CPU_SUPPORTS_32BIT_KERNEL
1737 select CPU_SUPPORTS_64BIT_KERNEL
1738 select CPU_SUPPORTS_HIGHMEM
1739 select CPU_SUPPORTS_HUGEPAGES
1740
1741config CPU_SB1
1742 bool "SB1"
1743 depends on SYS_HAS_CPU_SB1
1744 select CPU_SUPPORTS_32BIT_KERNEL
1745 select CPU_SUPPORTS_64BIT_KERNEL
1746 select CPU_SUPPORTS_HIGHMEM
1747 select CPU_SUPPORTS_HUGEPAGES
1748 select WEAK_ORDERING
1749
1750config CPU_CAVIUM_OCTEON
1751 bool "Cavium Octeon processor"
1752 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1753 select CPU_HAS_PREFETCH
1754 select CPU_SUPPORTS_64BIT_KERNEL
1755 select WEAK_ORDERING
1756 select CPU_SUPPORTS_HIGHMEM
1757 select CPU_SUPPORTS_HUGEPAGES
1758 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1759 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1760 select MIPS_L1_CACHE_SHIFT_7
1761 select HAVE_KVM
1762 help
1763 The Cavium Octeon processor is a highly integrated chip containing
1764 many ethernet hardware widgets for networking tasks. The processor
1765 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1766 Full details can be found at http://www.caviumnetworks.com.
1767
1768config CPU_BMIPS
1769 bool "Broadcom BMIPS"
1770 depends on SYS_HAS_CPU_BMIPS
1771 select CPU_MIPS32
1772 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1773 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1774 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1775 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1776 select CPU_SUPPORTS_32BIT_KERNEL
1777 select DMA_NONCOHERENT
1778 select IRQ_MIPS_CPU
1779 select SWAP_IO_SPACE
1780 select WEAK_ORDERING
1781 select CPU_SUPPORTS_HIGHMEM
1782 select CPU_HAS_PREFETCH
1783 select CPU_SUPPORTS_CPUFREQ
1784 select MIPS_EXTERNAL_TIMER
1785 help
1786 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1787
1788config CPU_XLR
1789 bool "Netlogic XLR SoC"
1790 depends on SYS_HAS_CPU_XLR
1791 select CPU_SUPPORTS_32BIT_KERNEL
1792 select CPU_SUPPORTS_64BIT_KERNEL
1793 select CPU_SUPPORTS_HIGHMEM
1794 select CPU_SUPPORTS_HUGEPAGES
1795 select WEAK_ORDERING
1796 select WEAK_REORDERING_BEYOND_LLSC
1797 help
1798 Netlogic Microsystems XLR/XLS processors.
1799
1800config CPU_XLP
1801 bool "Netlogic XLP SoC"
1802 depends on SYS_HAS_CPU_XLP
1803 select CPU_SUPPORTS_32BIT_KERNEL
1804 select CPU_SUPPORTS_64BIT_KERNEL
1805 select CPU_SUPPORTS_HIGHMEM
1806 select WEAK_ORDERING
1807 select WEAK_REORDERING_BEYOND_LLSC
1808 select CPU_HAS_PREFETCH
1809 select CPU_MIPSR2
1810 select CPU_SUPPORTS_HUGEPAGES
1811 select MIPS_ASID_BITS_VARIABLE
1812 help
1813 Netlogic Microsystems XLP processors.
1814endchoice
1815
1816config CPU_MIPS32_3_5_FEATURES
1817 bool "MIPS32 Release 3.5 Features"
1818 depends on SYS_HAS_CPU_MIPS32_R3_5
1819 depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_MIPS32_R6 || \
1820 CPU_P5600
1821 help
1822 Choose this option to build a kernel for release 2 or later of the
1823 MIPS32 architecture including features from the 3.5 release such as
1824 support for Enhanced Virtual Addressing (EVA).
1825
1826config CPU_MIPS32_3_5_EVA
1827 bool "Enhanced Virtual Addressing (EVA)"
1828 depends on CPU_MIPS32_3_5_FEATURES
1829 select EVA
1830 default y
1831 help
1832 Choose this option if you want to enable the Enhanced Virtual
1833 Addressing (EVA) on your MIPS32 core (such as proAptiv).
1834 One of its primary benefits is an increase in the maximum size
1835 of lowmem (up to 3GB). If unsure, say 'N' here.
1836
1837config CPU_MIPS32_R5_FEATURES
1838 bool "MIPS32 Release 5 Features"
1839 depends on SYS_HAS_CPU_MIPS32_R5
1840 depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_P5600
1841 help
1842 Choose this option to build a kernel for release 2 or later of the
1843 MIPS32 architecture including features from release 5 such as
1844 support for Extended Physical Addressing (XPA).
1845
1846config CPU_MIPS32_R5_XPA
1847 bool "Extended Physical Addressing (XPA)"
1848 depends on CPU_MIPS32_R5_FEATURES
1849 depends on !EVA
1850 depends on !PAGE_SIZE_4KB
1851 depends on SYS_SUPPORTS_HIGHMEM
1852 select XPA
1853 select HIGHMEM
1854 select PHYS_ADDR_T_64BIT
1855 default n
1856 help
1857 Choose this option if you want to enable the Extended Physical
1858 Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1859 benefit is to increase physical addressing equal to or greater
1860 than 40 bits. Note that this has the side effect of turning on
1861 64-bit addressing which in turn makes the PTEs 64-bit in size.
1862 If unsure, say 'N' here.
1863
1864if CPU_LOONGSON2F
1865config CPU_NOP_WORKAROUNDS
1866 bool
1867
1868config CPU_JUMP_WORKAROUNDS
1869 bool
1870
1871config CPU_LOONGSON2F_WORKAROUNDS
1872 bool "Loongson 2F Workarounds"
1873 default y
1874 select CPU_NOP_WORKAROUNDS
1875 select CPU_JUMP_WORKAROUNDS
1876 help
1877 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1878 require workarounds. Without workarounds the system may hang
1879 unexpectedly. For more information please refer to the gas
1880 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1881
1882 Loongson 2F03 and later have fixed these issues and no workarounds
1883 are needed. The workarounds have no significant side effect on them
1884 but may decrease the performance of the system so this option should
1885 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1886 systems.
1887
1888 If unsure, please say Y.
1889endif
1890
1891config SYS_SUPPORTS_ZBOOT
1892 bool
1893 select HAVE_KERNEL_GZIP
1894 select HAVE_KERNEL_BZIP2
1895 select HAVE_KERNEL_LZ4
1896 select HAVE_KERNEL_LZMA
1897 select HAVE_KERNEL_LZO
1898 select HAVE_KERNEL_XZ
1899 select HAVE_KERNEL_ZSTD
1900
1901config SYS_SUPPORTS_ZBOOT_UART16550
1902 bool
1903 select SYS_SUPPORTS_ZBOOT
1904
1905config SYS_SUPPORTS_ZBOOT_UART_PROM
1906 bool
1907 select SYS_SUPPORTS_ZBOOT
1908
1909config CPU_LOONGSON2EF
1910 bool
1911 select CPU_SUPPORTS_32BIT_KERNEL
1912 select CPU_SUPPORTS_64BIT_KERNEL
1913 select CPU_SUPPORTS_HIGHMEM
1914 select CPU_SUPPORTS_HUGEPAGES
1915 select ARCH_HAS_PHYS_TO_DMA
1916
1917config CPU_LOONGSON32
1918 bool
1919 select CPU_MIPS32
1920 select CPU_MIPSR2
1921 select CPU_HAS_PREFETCH
1922 select CPU_SUPPORTS_32BIT_KERNEL
1923 select CPU_SUPPORTS_HIGHMEM
1924 select CPU_SUPPORTS_CPUFREQ
1925
1926config CPU_BMIPS32_3300
1927 select SMP_UP if SMP
1928 bool
1929
1930config CPU_BMIPS4350
1931 bool
1932 select SYS_SUPPORTS_SMP
1933 select SYS_SUPPORTS_HOTPLUG_CPU
1934
1935config CPU_BMIPS4380
1936 bool
1937 select MIPS_L1_CACHE_SHIFT_6
1938 select SYS_SUPPORTS_SMP
1939 select SYS_SUPPORTS_HOTPLUG_CPU
1940 select CPU_HAS_RIXI
1941
1942config CPU_BMIPS5000
1943 bool
1944 select MIPS_CPU_SCACHE
1945 select MIPS_L1_CACHE_SHIFT_7
1946 select SYS_SUPPORTS_SMP
1947 select SYS_SUPPORTS_HOTPLUG_CPU
1948 select CPU_HAS_RIXI
1949
1950config SYS_HAS_CPU_LOONGSON64
1951 bool
1952 select CPU_SUPPORTS_CPUFREQ
1953 select CPU_HAS_RIXI
1954
1955config SYS_HAS_CPU_LOONGSON2E
1956 bool
1957
1958config SYS_HAS_CPU_LOONGSON2F
1959 bool
1960 select CPU_SUPPORTS_CPUFREQ
1961 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1962
1963config SYS_HAS_CPU_LOONGSON1B
1964 bool
1965
1966config SYS_HAS_CPU_LOONGSON1C
1967 bool
1968
1969config SYS_HAS_CPU_MIPS32_R1
1970 bool
1971
1972config SYS_HAS_CPU_MIPS32_R2
1973 bool
1974
1975config SYS_HAS_CPU_MIPS32_R3_5
1976 bool
1977
1978config SYS_HAS_CPU_MIPS32_R5
1979 bool
1980 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1981
1982config SYS_HAS_CPU_MIPS32_R6
1983 bool
1984 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1985
1986config SYS_HAS_CPU_MIPS64_R1
1987 bool
1988
1989config SYS_HAS_CPU_MIPS64_R2
1990 bool
1991
1992config SYS_HAS_CPU_MIPS64_R6
1993 bool
1994 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1995
1996config SYS_HAS_CPU_P5600
1997 bool
1998 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1999
2000config SYS_HAS_CPU_R3000
2001 bool
2002
2003config SYS_HAS_CPU_TX39XX
2004 bool
2005
2006config SYS_HAS_CPU_VR41XX
2007 bool
2008
2009config SYS_HAS_CPU_R4300
2010 bool
2011
2012config SYS_HAS_CPU_R4X00
2013 bool
2014
2015config SYS_HAS_CPU_TX49XX
2016 bool
2017
2018config SYS_HAS_CPU_R5000
2019 bool
2020
2021config SYS_HAS_CPU_R5500
2022 bool
2023
2024config SYS_HAS_CPU_NEVADA
2025 bool
2026
2027config SYS_HAS_CPU_R10000
2028 bool
2029 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2030
2031config SYS_HAS_CPU_RM7000
2032 bool
2033
2034config SYS_HAS_CPU_SB1
2035 bool
2036
2037config SYS_HAS_CPU_CAVIUM_OCTEON
2038 bool
2039
2040config SYS_HAS_CPU_BMIPS
2041 bool
2042
2043config SYS_HAS_CPU_BMIPS32_3300
2044 bool
2045 select SYS_HAS_CPU_BMIPS
2046
2047config SYS_HAS_CPU_BMIPS4350
2048 bool
2049 select SYS_HAS_CPU_BMIPS
2050
2051config SYS_HAS_CPU_BMIPS4380
2052 bool
2053 select SYS_HAS_CPU_BMIPS
2054
2055config SYS_HAS_CPU_BMIPS5000
2056 bool
2057 select SYS_HAS_CPU_BMIPS
2058 select ARCH_HAS_SYNC_DMA_FOR_CPU
2059
2060config SYS_HAS_CPU_XLR
2061 bool
2062
2063config SYS_HAS_CPU_XLP
2064 bool
2065
2066
2067
2068
2069
2070config WEAK_ORDERING
2071 bool
2072
2073
2074
2075
2076
2077config WEAK_REORDERING_BEYOND_LLSC
2078 bool
2079endmenu
2080
2081
2082
2083
2084config CPU_MIPS32
2085 bool
2086 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R5 || \
2087 CPU_MIPS32_R6 || CPU_P5600
2088
2089config CPU_MIPS64
2090 bool
2091 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R5 || \
2092 CPU_MIPS64_R6 || CPU_LOONGSON64 || CPU_CAVIUM_OCTEON
2093
2094
2095
2096
2097config CPU_MIPSR1
2098 bool
2099 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
2100
2101config CPU_MIPSR2
2102 bool
2103 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2104 select CPU_HAS_RIXI
2105 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2106 select MIPS_SPRAM
2107
2108config CPU_MIPSR5
2109 bool
2110 default y if CPU_MIPS32_R5 || CPU_MIPS64_R5 || CPU_P5600
2111 select CPU_HAS_RIXI
2112 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2113 select MIPS_SPRAM
2114
2115config CPU_MIPSR6
2116 bool
2117 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2118 select CPU_HAS_RIXI
2119 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2120 select HAVE_ARCH_BITREVERSE
2121 select MIPS_ASID_BITS_VARIABLE
2122 select MIPS_CRC_SUPPORT
2123 select MIPS_SPRAM
2124
2125config TARGET_ISA_REV
2126 int
2127 default 1 if CPU_MIPSR1
2128 default 2 if CPU_MIPSR2
2129 default 5 if CPU_MIPSR5
2130 default 6 if CPU_MIPSR6
2131 default 0
2132 help
2133 Reflects the ISA revision being targeted by the kernel build. This
2134 is effectively the Kconfig equivalent of MIPS_ISA_REV.
2135
2136config EVA
2137 bool
2138
2139config XPA
2140 bool
2141
2142config SYS_SUPPORTS_32BIT_KERNEL
2143 bool
2144config SYS_SUPPORTS_64BIT_KERNEL
2145 bool
2146config CPU_SUPPORTS_32BIT_KERNEL
2147 bool
2148config CPU_SUPPORTS_64BIT_KERNEL
2149 bool
2150config CPU_SUPPORTS_CPUFREQ
2151 bool
2152config CPU_SUPPORTS_ADDRWINCFG
2153 bool
2154config CPU_SUPPORTS_HUGEPAGES
2155 bool
2156 depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA))
2157config MIPS_PGD_C0_CONTEXT
2158 bool
2159 depends on 64BIT
2160 default y if (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2161
2162
2163
2164
2165config HARDWARE_WATCHPOINTS
2166 bool
2167 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2168
2169menu "Kernel type"
2170
2171choice
2172 prompt "Kernel code model"
2173 help
2174 You should only select this option if you have a workload that
2175 actually benefits from 64-bit processing or if your machine has
2176 large memory. You will only be presented a single option in this
2177 menu if your system does not support both 32-bit and 64-bit kernels.
2178
2179config 32BIT
2180 bool "32-bit kernel"
2181 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2182 select TRAD_SIGNALS
2183 help
2184 Select this option if you want to build a 32-bit kernel.
2185
2186config 64BIT
2187 bool "64-bit kernel"
2188 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2189 help
2190 Select this option if you want to build a 64-bit kernel.
2191
2192endchoice
2193
2194config MIPS_VA_BITS_48
2195 bool "48 bits virtual memory"
2196 depends on 64BIT
2197 help
2198 Support a maximum at least 48 bits of application virtual
2199 memory. Default is 40 bits or less, depending on the CPU.
2200 For page sizes 16k and above, this option results in a small
2201 memory overhead for page tables. For 4k page size, a fourth
2202 level of page tables is added which imposes both a memory
2203 overhead as well as slower TLB fault handling.
2204
2205 If unsure, say N.
2206
2207choice
2208 prompt "Kernel page size"
2209 default PAGE_SIZE_4KB
2210
2211config PAGE_SIZE_4KB
2212 bool "4kB"
2213 depends on !CPU_LOONGSON2EF && !CPU_LOONGSON64
2214 help
2215 This option select the standard 4kB Linux page size. On some
2216 R3000-family processors this is the only available page size. Using
2217 4kB page size will minimize memory consumption and is therefore
2218 recommended for low memory systems.
2219
2220config PAGE_SIZE_8KB
2221 bool "8kB"
2222 depends on CPU_CAVIUM_OCTEON
2223 depends on !MIPS_VA_BITS_48
2224 help
2225 Using 8kB page size will result in higher performance kernel at
2226 the price of higher memory consumption. This option is available
2227 only on cnMIPS processors. Note that you will need a suitable Linux
2228 distribution to support this.
2229
2230config PAGE_SIZE_16KB
2231 bool "16kB"
2232 depends on !CPU_R3000 && !CPU_TX39XX
2233 help
2234 Using 16kB page size will result in higher performance kernel at
2235 the price of higher memory consumption. This option is available on
2236 all non-R3000 family processors. Note that you will need a suitable
2237 Linux distribution to support this.
2238
2239config PAGE_SIZE_32KB
2240 bool "32kB"
2241 depends on CPU_CAVIUM_OCTEON
2242 depends on !MIPS_VA_BITS_48
2243 help
2244 Using 32kB page size will result in higher performance kernel at
2245 the price of higher memory consumption. This option is available
2246 only on cnMIPS cores. Note that you will need a suitable Linux
2247 distribution to support this.
2248
2249config PAGE_SIZE_64KB
2250 bool "64kB"
2251 depends on !CPU_R3000 && !CPU_TX39XX
2252 help
2253 Using 64kB page size will result in higher performance kernel at
2254 the price of higher memory consumption. This option is available on
2255 all non-R3000 family processor. Not that at the time of this
2256 writing this option is still high experimental.
2257
2258endchoice
2259
2260config FORCE_MAX_ZONEORDER
2261 int "Maximum zone order"
2262 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2263 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2264 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2265 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2266 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2267 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2268 range 0 64
2269 default "11"
2270 help
2271 The kernel memory allocator divides physically contiguous memory
2272 blocks into "zones", where each zone is a power of two number of
2273 pages. This option selects the largest power of two that the kernel
2274 keeps in the memory allocator. If you need to allocate very large
2275 blocks of physically contiguous memory, then you may need to
2276 increase this value.
2277
2278 This config option is actually maximum order plus one. For example,
2279 a value of 11 means that the largest free memory block is 2^10 pages.
2280
2281 The page size is not necessarily 4KB. Keep this in mind
2282 when choosing a value for this option.
2283
2284config BOARD_SCACHE
2285 bool
2286
2287config IP22_CPU_SCACHE
2288 bool
2289 select BOARD_SCACHE
2290
2291
2292
2293
2294config MIPS_CPU_SCACHE
2295 bool
2296 select BOARD_SCACHE
2297
2298config R5000_CPU_SCACHE
2299 bool
2300 select BOARD_SCACHE
2301
2302config RM7000_CPU_SCACHE
2303 bool
2304 select BOARD_SCACHE
2305
2306config SIBYTE_DMA_PAGEOPS
2307 bool "Use DMA to clear/copy pages"
2308 depends on CPU_SB1
2309 help
2310 Instead of using the CPU to zero and copy pages, use a Data Mover
2311 channel. These DMA channels are otherwise unused by the standard
2312 SiByte Linux port. Seems to give a small performance benefit.
2313
2314config CPU_HAS_PREFETCH
2315 bool
2316
2317config CPU_GENERIC_DUMP_TLB
2318 bool
2319 default y if !(CPU_R3000 || CPU_TX39XX)
2320
2321config MIPS_FP_SUPPORT
2322 bool "Floating Point support" if EXPERT
2323 default y
2324 help
2325 Select y to include support for floating point in the kernel
2326 including initialization of FPU hardware, FP context save & restore
2327 and emulation of an FPU where necessary. Without this support any
2328 userland program attempting to use floating point instructions will
2329 receive a SIGILL.
2330
2331 If you know that your userland will not attempt to use floating point
2332 instructions then you can say n here to shrink the kernel a little.
2333
2334 If unsure, say y.
2335
2336config CPU_R2300_FPU
2337 bool
2338 depends on MIPS_FP_SUPPORT
2339 default y if CPU_R3000 || CPU_TX39XX
2340
2341config CPU_R3K_TLB
2342 bool
2343
2344config CPU_R4K_FPU
2345 bool
2346 depends on MIPS_FP_SUPPORT
2347 default y if !CPU_R2300_FPU
2348
2349config CPU_R4K_CACHE_TLB
2350 bool
2351 default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON)
2352
2353config MIPS_MT_SMP
2354 bool "MIPS MT SMP support (1 TC on each available VPE)"
2355 default y
2356 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2357 select CPU_MIPSR2_IRQ_VI
2358 select CPU_MIPSR2_IRQ_EI
2359 select SYNC_R4K
2360 select MIPS_MT
2361 select SMP
2362 select SMP_UP
2363 select SYS_SUPPORTS_SMP
2364 select SYS_SUPPORTS_SCHED_SMT
2365 select MIPS_PERF_SHARED_TC_COUNTERS
2366 help
2367 This is a kernel model which is known as SMVP. This is supported
2368 on cores with the MT ASE and uses the available VPEs to implement
2369 virtual processors which supports SMP. This is equivalent to the
2370 Intel Hyperthreading feature. For further information go to
2371 <http://www.imgtec.com/mips/mips-multithreading.asp>.
2372
2373config MIPS_MT
2374 bool
2375
2376config SCHED_SMT
2377 bool "SMT (multithreading) scheduler support"
2378 depends on SYS_SUPPORTS_SCHED_SMT
2379 default n
2380 help
2381 SMT scheduler support improves the CPU scheduler's decision making
2382 when dealing with MIPS MT enabled cores at a cost of slightly
2383 increased overhead in some places. If unsure say N here.
2384
2385config SYS_SUPPORTS_SCHED_SMT
2386 bool
2387
2388config SYS_SUPPORTS_MULTITHREADING
2389 bool
2390
2391config MIPS_MT_FPAFF
2392 bool "Dynamic FPU affinity for FP-intensive threads"
2393 default y
2394 depends on MIPS_MT_SMP
2395
2396config MIPSR2_TO_R6_EMULATOR
2397 bool "MIPS R2-to-R6 emulator"
2398 depends on CPU_MIPSR6
2399 depends on MIPS_FP_SUPPORT
2400 default y
2401 help
2402 Choose this option if you want to run non-R6 MIPS userland code.
2403 Even if you say 'Y' here, the emulator will still be disabled by
2404 default. You can enable it using the 'mipsr2emu' kernel option.
2405 The only reason this is a build-time option is to save ~14K from the
2406 final kernel image.
2407
2408config SYS_SUPPORTS_VPE_LOADER
2409 bool
2410 depends on SYS_SUPPORTS_MULTITHREADING
2411 help
2412 Indicates that the platform supports the VPE loader, and provides
2413 physical_memsize.
2414
2415config MIPS_VPE_LOADER
2416 bool "VPE loader support."
2417 depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2418 select CPU_MIPSR2_IRQ_VI
2419 select CPU_MIPSR2_IRQ_EI
2420 select MIPS_MT
2421 help
2422 Includes a loader for loading an elf relocatable object
2423 onto another VPE and running it.
2424
2425config MIPS_VPE_LOADER_CMP
2426 bool
2427 default "y"
2428 depends on MIPS_VPE_LOADER && MIPS_CMP
2429
2430config MIPS_VPE_LOADER_MT
2431 bool
2432 default "y"
2433 depends on MIPS_VPE_LOADER && !MIPS_CMP
2434
2435config MIPS_VPE_LOADER_TOM
2436 bool "Load VPE program into memory hidden from linux"
2437 depends on MIPS_VPE_LOADER
2438 default y
2439 help
2440 The loader can use memory that is present but has been hidden from
2441 Linux using the kernel command line option "mem=xxMB". It's up to
2442 you to ensure the amount you put in the option and the space your
2443 program requires is less or equal to the amount physically present.
2444
2445config MIPS_VPE_APSP_API
2446 bool "Enable support for AP/SP API (RTLX)"
2447 depends on MIPS_VPE_LOADER
2448
2449config MIPS_VPE_APSP_API_CMP
2450 bool
2451 default "y"
2452 depends on MIPS_VPE_APSP_API && MIPS_CMP
2453
2454config MIPS_VPE_APSP_API_MT
2455 bool
2456 default "y"
2457 depends on MIPS_VPE_APSP_API && !MIPS_CMP
2458
2459config MIPS_CMP
2460 bool "MIPS CMP framework support (DEPRECATED)"
2461 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2462 select SMP
2463 select SYNC_R4K
2464 select SYS_SUPPORTS_SMP
2465 select WEAK_ORDERING
2466 default n
2467 help
2468 Select this if you are using a bootloader which implements the "CMP
2469 framework" protocol (ie. YAMON) and want your kernel to make use of
2470 its ability to start secondary CPUs.
2471
2472 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2473 instead of this.
2474
2475config MIPS_CPS
2476 bool "MIPS Coherent Processing System support"
2477 depends on SYS_SUPPORTS_MIPS_CPS
2478 select MIPS_CM
2479 select MIPS_CPS_PM if HOTPLUG_CPU
2480 select SMP
2481 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2482 select SYS_SUPPORTS_HOTPLUG_CPU
2483 select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2484 select SYS_SUPPORTS_SMP
2485 select WEAK_ORDERING
2486 select GENERIC_IRQ_MIGRATION if HOTPLUG_CPU
2487 help
2488 Select this if you wish to run an SMP kernel across multiple cores
2489 within a MIPS Coherent Processing System. When this option is
2490 enabled the kernel will probe for other cores and boot them with
2491 no external assistance. It is safe to enable this when hardware
2492 support is unavailable.
2493
2494config MIPS_CPS_PM
2495 depends on MIPS_CPS
2496 bool
2497
2498config MIPS_CM
2499 bool
2500 select MIPS_CPC
2501
2502config MIPS_CPC
2503 bool
2504
2505config SB1_PASS_2_WORKAROUNDS
2506 bool
2507 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2508 default y
2509
2510config SB1_PASS_2_1_WORKAROUNDS
2511 bool
2512 depends on CPU_SB1 && CPU_SB1_PASS_2
2513 default y
2514
2515choice
2516 prompt "SmartMIPS or microMIPS ASE support"
2517
2518config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2519 bool "None"
2520 help
2521 Select this if you want neither microMIPS nor SmartMIPS support
2522
2523config CPU_HAS_SMARTMIPS
2524 depends on SYS_SUPPORTS_SMARTMIPS
2525 bool "SmartMIPS"
2526 help
2527 SmartMIPS is a extension of the MIPS32 architecture aimed at
2528 increased security at both hardware and software level for
2529 smartcards. Enabling this option will allow proper use of the
2530 SmartMIPS instructions by Linux applications. However a kernel with
2531 this option will not work on a MIPS core without SmartMIPS core. If
2532 you don't know you probably don't have SmartMIPS and should say N
2533 here.
2534
2535config CPU_MICROMIPS
2536 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2537 bool "microMIPS"
2538 help
2539 When this option is enabled the kernel will be built using the
2540 microMIPS ISA
2541
2542endchoice
2543
2544config CPU_HAS_MSA
2545 bool "Support for the MIPS SIMD Architecture"
2546 depends on CPU_SUPPORTS_MSA
2547 depends on MIPS_FP_SUPPORT
2548 depends on 64BIT || MIPS_O32_FP64_SUPPORT
2549 help
2550 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2551 and a set of SIMD instructions to operate on them. When this option
2552 is enabled the kernel will support allocating & switching MSA
2553 vector register contexts. If you know that your kernel will only be
2554 running on CPUs which do not support MSA or that your userland will
2555 not be making use of it then you may wish to say N here to reduce
2556 the size & complexity of your kernel.
2557
2558 If unsure, say Y.
2559
2560config CPU_HAS_WB
2561 bool
2562
2563config XKS01
2564 bool
2565
2566config CPU_HAS_DIEI
2567 depends on !CPU_DIEI_BROKEN
2568 bool
2569
2570config CPU_DIEI_BROKEN
2571 bool
2572
2573config CPU_HAS_RIXI
2574 bool
2575
2576config CPU_NO_LOAD_STORE_LR
2577 bool
2578 help
2579 CPU lacks support for unaligned load and store instructions:
2580 LWL, LWR, SWL, SWR (Load/store word left/right).
2581 LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit
2582 systems).
2583
2584
2585
2586
2587config CPU_MIPSR2_IRQ_VI
2588 bool
2589
2590
2591
2592
2593config CPU_MIPSR2_IRQ_EI
2594 bool
2595
2596config CPU_HAS_SYNC
2597 bool
2598 depends on !CPU_R3000
2599 default y
2600
2601
2602
2603
2604config CPU_DADDI_WORKAROUNDS
2605 bool
2606
2607config CPU_R4000_WORKAROUNDS
2608 bool
2609 select CPU_R4400_WORKAROUNDS
2610
2611config CPU_R4400_WORKAROUNDS
2612 bool
2613
2614config CPU_R4X00_BUGS64
2615 bool
2616 default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1)
2617
2618config MIPS_ASID_SHIFT
2619 int
2620 default 6 if CPU_R3000 || CPU_TX39XX
2621 default 0
2622
2623config MIPS_ASID_BITS
2624 int
2625 default 0 if MIPS_ASID_BITS_VARIABLE
2626 default 6 if CPU_R3000 || CPU_TX39XX
2627 default 8
2628
2629config MIPS_ASID_BITS_VARIABLE
2630 bool
2631
2632config MIPS_CRC_SUPPORT
2633 bool
2634
2635
2636
2637
2638
2639config WAR_R4600_V1_INDEX_ICACHEOP
2640 bool
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666config WAR_R4600_V1_HIT_CACHEOP
2667 bool
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678config WAR_R4600_V2_HIT_CACHEOP
2679 bool
2680
2681
2682
2683
2684
2685
2686config WAR_TX49XX_ICACHE_INDEX_INV
2687 bool
2688
2689
2690
2691
2692
2693config WAR_ICACHE_REFILLS
2694 bool
2695
2696
2697
2698config WAR_R10000_LLSC
2699 bool
2700
2701
2702config WAR_MIPS34K_MISSED_ITLB
2703 bool
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718config HIGHMEM
2719 bool "High Memory Support"
2720 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2721 select KMAP_LOCAL
2722
2723config CPU_SUPPORTS_HIGHMEM
2724 bool
2725
2726config SYS_SUPPORTS_HIGHMEM
2727 bool
2728
2729config SYS_SUPPORTS_SMARTMIPS
2730 bool
2731
2732config SYS_SUPPORTS_MICROMIPS
2733 bool
2734
2735config SYS_SUPPORTS_MIPS16
2736 bool
2737 help
2738 This option must be set if a kernel might be executed on a MIPS16-
2739 enabled CPU even if MIPS16 is not actually being used. In other
2740 words, it makes the kernel MIPS16-tolerant.
2741
2742config CPU_SUPPORTS_MSA
2743 bool
2744
2745config ARCH_FLATMEM_ENABLE
2746 def_bool y
2747 depends on !NUMA && !CPU_LOONGSON2EF
2748
2749config ARCH_SPARSEMEM_ENABLE
2750 bool
2751 select SPARSEMEM_STATIC if !SGI_IP27
2752
2753config NUMA
2754 bool "NUMA Support"
2755 depends on SYS_SUPPORTS_NUMA
2756 select SMP
2757 help
2758 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2759 Access). This option improves performance on systems with more
2760 than two nodes; on two node systems it is generally better to
2761 leave it disabled; on single node systems leave this option
2762 disabled.
2763
2764config SYS_SUPPORTS_NUMA
2765 bool
2766
2767config HAVE_SETUP_PER_CPU_AREA
2768 def_bool y
2769 depends on NUMA
2770
2771config NEED_PER_CPU_EMBED_FIRST_CHUNK
2772 def_bool y
2773 depends on NUMA
2774
2775config RELOCATABLE
2776 bool "Relocatable kernel"
2777 depends on SYS_SUPPORTS_RELOCATABLE
2778 depends on CPU_MIPS32_R2 || CPU_MIPS64_R2 || \
2779 CPU_MIPS32_R5 || CPU_MIPS64_R5 || \
2780 CPU_MIPS32_R6 || CPU_MIPS64_R6 || \
2781 CPU_P5600 || CAVIUM_OCTEON_SOC || \
2782 CPU_LOONGSON64
2783 help
2784 This builds a kernel image that retains relocation information
2785 so it can be loaded someplace besides the default 1MB.
2786 The relocations make the kernel binary about 15% larger,
2787 but are discarded at runtime
2788
2789config RELOCATION_TABLE_SIZE
2790 hex "Relocation table size"
2791 depends on RELOCATABLE
2792 range 0x0 0x01000000
2793 default "0x00200000" if CPU_LOONGSON64
2794 default "0x00100000"
2795 help
2796 A table of relocation data will be appended to the kernel binary
2797 and parsed at boot to fix up the relocated kernel.
2798
2799 This option allows the amount of space reserved for the table to be
2800 adjusted, although the default of 1Mb should be ok in most cases.
2801
2802 The build will fail and a valid size suggested if this is too small.
2803
2804 If unsure, leave at the default value.
2805
2806config RANDOMIZE_BASE
2807 bool "Randomize the address of the kernel image"
2808 depends on RELOCATABLE
2809 help
2810 Randomizes the physical and virtual address at which the
2811 kernel image is loaded, as a security feature that
2812 deters exploit attempts relying on knowledge of the location
2813 of kernel internals.
2814
2815 Entropy is generated using any coprocessor 0 registers available.
2816
2817 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2818
2819 If unsure, say N.
2820
2821config RANDOMIZE_BASE_MAX_OFFSET
2822 hex "Maximum kASLR offset" if EXPERT
2823 depends on RANDOMIZE_BASE
2824 range 0x0 0x40000000 if EVA || 64BIT
2825 range 0x0 0x08000000
2826 default "0x01000000"
2827 help
2828 When kASLR is active, this provides the maximum offset that will
2829 be applied to the kernel image. It should be set according to the
2830 amount of physical RAM available in the target system minus
2831 PHYSICAL_START and must be a power of 2.
2832
2833 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2834 EVA or 64-bit. The default is 16Mb.
2835
2836config NODES_SHIFT
2837 int
2838 default "6"
2839 depends on NUMA
2840
2841config HW_PERF_EVENTS
2842 bool "Enable hardware performance counter support for perf events"
2843 depends on PERF_EVENTS && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON64)
2844 default y
2845 help
2846 Enable hardware performance counter support for perf events. If
2847 disabled, perf events will use software events only.
2848
2849config DMI
2850 bool "Enable DMI scanning"
2851 depends on MACH_LOONGSON64
2852 select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
2853 default y
2854 help
2855 Enabled scanning of DMI to identify machine quirks. Say Y
2856 here unless you have verified that your setup is not
2857 affected by entries in the DMI blacklist. Required by PNP
2858 BIOS code.
2859
2860config SMP
2861 bool "Multi-Processing support"
2862 depends on SYS_SUPPORTS_SMP
2863 help
2864 This enables support for systems with more than one CPU. If you have
2865 a system with only one CPU, say N. If you have a system with more
2866 than one CPU, say Y.
2867
2868 If you say N here, the kernel will run on uni- and multiprocessor
2869 machines, but will use only one CPU of a multiprocessor machine. If
2870 you say Y here, the kernel will run on many, but not all,
2871 uniprocessor machines. On a uniprocessor machine, the kernel
2872 will run faster if you say N here.
2873
2874 People using multiprocessor machines who say Y here should also say
2875 Y to "Enhanced Real Time Clock Support", below.
2876
2877 See also the SMP-HOWTO available at
2878 <https://www.tldp.org/docs.html#howto>.
2879
2880 If you don't know what to do here, say N.
2881
2882config HOTPLUG_CPU
2883 bool "Support for hot-pluggable CPUs"
2884 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2885 help
2886 Say Y here to allow turning CPUs off and on. CPUs can be
2887 controlled through /sys/devices/system/cpu.
2888 (Note: power management support will enable this option
2889 automatically on SMP systems. )
2890 Say N if you want to disable CPU hotplug.
2891
2892config SMP_UP
2893 bool
2894
2895config SYS_SUPPORTS_MIPS_CMP
2896 bool
2897
2898config SYS_SUPPORTS_MIPS_CPS
2899 bool
2900
2901config SYS_SUPPORTS_SMP
2902 bool
2903
2904config NR_CPUS_DEFAULT_4
2905 bool
2906
2907config NR_CPUS_DEFAULT_8
2908 bool
2909
2910config NR_CPUS_DEFAULT_16
2911 bool
2912
2913config NR_CPUS_DEFAULT_32
2914 bool
2915
2916config NR_CPUS_DEFAULT_64
2917 bool
2918
2919config NR_CPUS
2920 int "Maximum number of CPUs (2-256)"
2921 range 2 256
2922 depends on SMP
2923 default "4" if NR_CPUS_DEFAULT_4
2924 default "8" if NR_CPUS_DEFAULT_8
2925 default "16" if NR_CPUS_DEFAULT_16
2926 default "32" if NR_CPUS_DEFAULT_32
2927 default "64" if NR_CPUS_DEFAULT_64
2928 help
2929 This allows you to specify the maximum number of CPUs which this
2930 kernel will support. The maximum supported value is 32 for 32-bit
2931 kernel and 64 for 64-bit kernels; the minimum value which makes
2932 sense is 1 for Qemu (useful only for kernel debugging purposes)
2933 and 2 for all others.
2934
2935 This is purely to save memory - each supported CPU adds
2936 approximately eight kilobytes to the kernel image. For best
2937 performance should round up your number of processors to the next
2938 power of two.
2939
2940config MIPS_PERF_SHARED_TC_COUNTERS
2941 bool
2942
2943config MIPS_NR_CPU_NR_MAP_1024
2944 bool
2945
2946config MIPS_NR_CPU_NR_MAP
2947 int
2948 depends on SMP
2949 default 1024 if MIPS_NR_CPU_NR_MAP_1024
2950 default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
2951
2952
2953
2954
2955
2956choice
2957 prompt "Timer frequency"
2958 default HZ_250
2959 help
2960 Allows the configuration of the timer frequency.
2961
2962 config HZ_24
2963 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2964
2965 config HZ_48
2966 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2967
2968 config HZ_100
2969 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2970
2971 config HZ_128
2972 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2973
2974 config HZ_250
2975 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2976
2977 config HZ_256
2978 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2979
2980 config HZ_1000
2981 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2982
2983 config HZ_1024
2984 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2985
2986endchoice
2987
2988config SYS_SUPPORTS_24HZ
2989 bool
2990
2991config SYS_SUPPORTS_48HZ
2992 bool
2993
2994config SYS_SUPPORTS_100HZ
2995 bool
2996
2997config SYS_SUPPORTS_128HZ
2998 bool
2999
3000config SYS_SUPPORTS_250HZ
3001 bool
3002
3003config SYS_SUPPORTS_256HZ
3004 bool
3005
3006config SYS_SUPPORTS_1000HZ
3007 bool
3008
3009config SYS_SUPPORTS_1024HZ
3010 bool
3011
3012config SYS_SUPPORTS_ARBIT_HZ
3013 bool
3014 default y if !SYS_SUPPORTS_24HZ && \
3015 !SYS_SUPPORTS_48HZ && \
3016 !SYS_SUPPORTS_100HZ && \
3017 !SYS_SUPPORTS_128HZ && \
3018 !SYS_SUPPORTS_250HZ && \
3019 !SYS_SUPPORTS_256HZ && \
3020 !SYS_SUPPORTS_1000HZ && \
3021 !SYS_SUPPORTS_1024HZ
3022
3023config HZ
3024 int
3025 default 24 if HZ_24
3026 default 48 if HZ_48
3027 default 100 if HZ_100
3028 default 128 if HZ_128
3029 default 250 if HZ_250
3030 default 256 if HZ_256
3031 default 1000 if HZ_1000
3032 default 1024 if HZ_1024
3033
3034config SCHED_HRTICK
3035 def_bool HIGH_RES_TIMERS
3036
3037config KEXEC
3038 bool "Kexec system call"
3039 select KEXEC_CORE
3040 help
3041 kexec is a system call that implements the ability to shutdown your
3042 current kernel, and to start another kernel. It is like a reboot
3043 but it is independent of the system firmware. And like a reboot
3044 you can start any kernel with it, not just Linux.
3045
3046 The name comes from the similarity to the exec system call.
3047
3048 It is an ongoing process to be certain the hardware in a machine
3049 is properly shutdown, so do not be surprised if this code does not
3050 initially work for you. As of this writing the exact hardware
3051 interface is strongly in flux, so no good recommendation can be
3052 made.
3053
3054config CRASH_DUMP
3055 bool "Kernel crash dumps"
3056 help
3057 Generate crash dump after being started by kexec.
3058 This should be normally only set in special crash dump kernels
3059 which are loaded in the main kernel with kexec-tools into
3060 a specially reserved region and then later executed after
3061 a crash by kdump/kexec. The crash dump kernel must be compiled
3062 to a memory address not used by the main kernel or firmware using
3063 PHYSICAL_START.
3064
3065config PHYSICAL_START
3066 hex "Physical address where the kernel is loaded"
3067 default "0xffffffff84000000"
3068 depends on CRASH_DUMP
3069 help
3070 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
3071 If you plan to use kernel for capturing the crash dump change
3072 this value to start of the reserved region (the "X" value as
3073 specified in the "crashkernel=YM@XM" command line boot parameter
3074 passed to the panic-ed kernel).
3075
3076config MIPS_O32_FP64_SUPPORT
3077 bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
3078 depends on 32BIT || MIPS32_O32
3079 help
3080 When this is enabled, the kernel will support use of 64-bit floating
3081 point registers with binaries using the O32 ABI along with the
3082 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
3083 32-bit MIPS systems this support is at the cost of increasing the
3084 size and complexity of the compiled FPU emulator. Thus if you are
3085 running a MIPS32 system and know that none of your userland binaries
3086 will require 64-bit floating point, you may wish to reduce the size
3087 of your kernel & potentially improve FP emulation performance by
3088 saying N here.
3089
3090 Although binutils currently supports use of this flag the details
3091 concerning its effect upon the O32 ABI in userland are still being
3092 worked on. In order to avoid userland becoming dependent upon current
3093 behaviour before the details have been finalised, this option should
3094 be considered experimental and only enabled by those working upon
3095 said details.
3096
3097 If unsure, say N.
3098
3099config USE_OF
3100 bool
3101 select OF
3102 select OF_EARLY_FLATTREE
3103 select IRQ_DOMAIN
3104
3105config UHI_BOOT
3106 bool
3107
3108config BUILTIN_DTB
3109 bool
3110
3111choice
3112 prompt "Kernel appended dtb support" if USE_OF
3113 default MIPS_NO_APPENDED_DTB
3114
3115 config MIPS_NO_APPENDED_DTB
3116 bool "None"
3117 help
3118 Do not enable appended dtb support.
3119
3120 config MIPS_ELF_APPENDED_DTB
3121 bool "vmlinux"
3122 help
3123 With this option, the boot code will look for a device tree binary
3124 DTB) included in the vmlinux ELF section .appended_dtb. By default
3125 it is empty and the DTB can be appended using binutils command
3126 objcopy:
3127
3128 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
3129
3130 This is meant as a backward compatibility convenience for those
3131 systems with a bootloader that can't be upgraded to accommodate
3132 the documented boot protocol using a device tree.
3133
3134 config MIPS_RAW_APPENDED_DTB
3135 bool "vmlinux.bin or vmlinuz.bin"
3136 help
3137 With this option, the boot code will look for a device tree binary
3138 DTB) appended to raw vmlinux.bin or vmlinuz.bin.
3139 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
3140
3141 This is meant as a backward compatibility convenience for those
3142 systems with a bootloader that can't be upgraded to accommodate
3143 the documented boot protocol using a device tree.
3144
3145 Beware that there is very little in terms of protection against
3146 this option being confused by leftover garbage in memory that might
3147 look like a DTB header after a reboot if no actual DTB is appended
3148 to vmlinux.bin. Do not leave this option active in a production kernel
3149 if you don't intend to always append a DTB.
3150endchoice
3151
3152choice
3153 prompt "Kernel command line type" if !CMDLINE_OVERRIDE
3154 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
3155 !MACH_LOONGSON64 && !MIPS_MALTA && \
3156 !CAVIUM_OCTEON_SOC
3157 default MIPS_CMDLINE_FROM_BOOTLOADER
3158
3159 config MIPS_CMDLINE_FROM_DTB
3160 depends on USE_OF
3161 bool "Dtb kernel arguments if available"
3162
3163 config MIPS_CMDLINE_DTB_EXTEND
3164 depends on USE_OF
3165 bool "Extend dtb kernel arguments with bootloader arguments"
3166
3167 config MIPS_CMDLINE_FROM_BOOTLOADER
3168 bool "Bootloader kernel arguments if available"
3169
3170 config MIPS_CMDLINE_BUILTIN_EXTEND
3171 depends on CMDLINE_BOOL
3172 bool "Extend builtin kernel arguments with bootloader arguments"
3173endchoice
3174
3175endmenu
3176
3177config LOCKDEP_SUPPORT
3178 bool
3179 default y
3180
3181config STACKTRACE_SUPPORT
3182 bool
3183 default y
3184
3185config PGTABLE_LEVELS
3186 int
3187 default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3188 default 3 if 64BIT && !PAGE_SIZE_64KB
3189 default 2
3190
3191config MIPS_AUTO_PFN_OFFSET
3192 bool
3193
3194menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
3195
3196config PCI_DRIVERS_GENERIC
3197 select PCI_DOMAINS_GENERIC if PCI
3198 bool
3199
3200config PCI_DRIVERS_LEGACY
3201 def_bool !PCI_DRIVERS_GENERIC
3202 select NO_GENERIC_PCI_IOPORT_MAP
3203 select PCI_DOMAINS if PCI
3204
3205
3206
3207
3208
3209
3210config ISA
3211 bool
3212
3213config TC
3214 bool "TURBOchannel support"
3215 depends on MACH_DECSTATION
3216 help
3217 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3218 processors. TURBOchannel programming specifications are available
3219 at:
3220 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3221 and:
3222 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3223 Linux driver support status is documented at:
3224 <http://www.linux-mips.org/wiki/DECstation>
3225
3226config MMU
3227 bool
3228 default y
3229
3230config ARCH_MMAP_RND_BITS_MIN
3231 default 12 if 64BIT
3232 default 8
3233
3234config ARCH_MMAP_RND_BITS_MAX
3235 default 18 if 64BIT
3236 default 15
3237
3238config ARCH_MMAP_RND_COMPAT_BITS_MIN
3239 default 8
3240
3241config ARCH_MMAP_RND_COMPAT_BITS_MAX
3242 default 15
3243
3244config I8253
3245 bool
3246 select CLKSRC_I8253
3247 select CLKEVT_I8253
3248 select MIPS_EXTERNAL_TIMER
3249endmenu
3250
3251config TRAD_SIGNALS
3252 bool
3253
3254config MIPS32_COMPAT
3255 bool
3256
3257config COMPAT
3258 bool
3259
3260config SYSVIPC_COMPAT
3261 bool
3262
3263config MIPS32_O32
3264 bool "Kernel support for o32 binaries"
3265 depends on 64BIT
3266 select ARCH_WANT_OLD_COMPAT_IPC
3267 select COMPAT
3268 select MIPS32_COMPAT
3269 select SYSVIPC_COMPAT if SYSVIPC
3270 help
3271 Select this option if you want to run o32 binaries. These are pure
3272 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
3273 existing binaries are in this format.
3274
3275 If unsure, say Y.
3276
3277config MIPS32_N32
3278 bool "Kernel support for n32 binaries"
3279 depends on 64BIT
3280 select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
3281 select COMPAT
3282 select MIPS32_COMPAT
3283 select SYSVIPC_COMPAT if SYSVIPC
3284 help
3285 Select this option if you want to run n32 binaries. These are
3286 64-bit binaries using 32-bit quantities for addressing and certain
3287 data that would normally be 64-bit. They are used in special
3288 cases.
3289
3290 If unsure, say N.
3291
3292menu "Power management options"
3293
3294config ARCH_HIBERNATION_POSSIBLE
3295 def_bool y
3296 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3297
3298config ARCH_SUSPEND_POSSIBLE
3299 def_bool y
3300 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3301
3302source "kernel/power/Kconfig"
3303
3304endmenu
3305
3306config MIPS_EXTERNAL_TIMER
3307 bool
3308
3309menu "CPU Power Management"
3310
3311if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3312source "drivers/cpufreq/Kconfig"
3313endif
3314
3315source "drivers/cpuidle/Kconfig"
3316
3317endmenu
3318
3319source "arch/mips/kvm/Kconfig"
3320
3321source "arch/mips/vdso/Kconfig"
3322