Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1config MIPS
2 bool
3 default y
4 select ARCH_SUPPORTS_UPROBES
5 select ARCH_MIGHT_HAVE_PC_PARPORT
6 select ARCH_MIGHT_HAVE_PC_SERIO
7 select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
8 select ARCH_USE_BUILTIN_BSWAP
9 select HAVE_CONTEXT_TRACKING
10 select HAVE_GENERIC_DMA_COHERENT
11 select HAVE_IDE
12 select HAVE_IRQ_EXIT_ON_IRQ_STACK
13 select HAVE_OPROFILE
14 select HAVE_PERF_EVENTS
15 select PERF_USE_VMALLOC
16 select HAVE_ARCH_KGDB
17 select HAVE_ARCH_MMAP_RND_BITS if MMU
18 select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
19 select HAVE_ARCH_SECCOMP_FILTER
20 select HAVE_ARCH_TRACEHOOK
21 select HAVE_CBPF_JIT if !CPU_MICROMIPS
22 select HAVE_FUNCTION_TRACER
23 select HAVE_DYNAMIC_FTRACE
24 select HAVE_FTRACE_MCOUNT_RECORD
25 select HAVE_C_RECORDMCOUNT
26 select HAVE_FUNCTION_GRAPH_TRACER
27 select HAVE_KPROBES
28 select HAVE_KRETPROBES
29 select HAVE_SYSCALL_TRACEPOINTS
30 select HAVE_DEBUG_KMEMLEAK
31 select HAVE_SYSCALL_TRACEPOINTS
32 select ARCH_HAS_ELF_RANDOMIZE
33 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
34 select RTC_LIB if !MACH_LOONGSON64
35 select GENERIC_ATOMIC64 if !64BIT
36 select HAVE_DMA_CONTIGUOUS
37 select HAVE_DMA_API_DEBUG
38 select GENERIC_IRQ_PROBE
39 select GENERIC_IRQ_SHOW
40 select GENERIC_PCI_IOMAP
41 select HAVE_ARCH_JUMP_LABEL
42 select ARCH_WANT_IPC_PARSE_VERSION
43 select IRQ_FORCED_THREADING
44 select HAVE_MEMBLOCK
45 select HAVE_MEMBLOCK_NODE_MAP
46 select ARCH_DISCARD_MEMBLOCK
47 select GENERIC_SMP_IDLE_THREAD
48 select BUILDTIME_EXTABLE_SORT
49 select GENERIC_CPU_AUTOPROBE
50 select GENERIC_CLOCKEVENTS
51 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
52 select GENERIC_CMOS_UPDATE
53 select HAVE_MOD_ARCH_SPECIFIC
54 select HAVE_NMI
55 select VIRT_TO_BUS
56 select MODULES_USE_ELF_REL if MODULES
57 select MODULES_USE_ELF_RELA if MODULES && 64BIT
58 select CLONE_BACKWARDS
59 select HAVE_DEBUG_STACKOVERFLOW
60 select HAVE_CC_STACKPROTECTOR
61 select CPU_PM if CPU_IDLE
62 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
63 select ARCH_BINFMT_ELF_STATE
64 select SYSCTL_EXCEPTION_TRACE
65 select HAVE_VIRT_CPU_ACCOUNTING_GEN
66 select HAVE_IRQ_TIME_ACCOUNTING
67 select GENERIC_TIME_VSYSCALL
68 select ARCH_CLOCKSOURCE_DATA
69 select HANDLE_DOMAIN_IRQ
70 select HAVE_EXIT_THREAD
71 select HAVE_REGS_AND_STACK_ACCESS_API
72 select HAVE_COPY_THREAD_TLS
73
74menu "Machine selection"
75
76choice
77 prompt "System type"
78 default SGI_IP22
79
80config MIPS_GENERIC
81 bool "Generic board-agnostic MIPS kernel"
82 select BOOT_RAW
83 select BUILTIN_DTB
84 select CEVT_R4K
85 select CLKSRC_MIPS_GIC
86 select COMMON_CLK
87 select CPU_MIPSR2_IRQ_VI
88 select CPU_MIPSR2_IRQ_EI
89 select CSRC_R4K
90 select DMA_PERDEV_COHERENT
91 select HW_HAS_PCI
92 select IRQ_MIPS_CPU
93 select LIBFDT
94 select MIPS_CPU_SCACHE
95 select MIPS_GIC
96 select MIPS_L1_CACHE_SHIFT_7
97 select NO_EXCEPT_FILL
98 select PCI_DRIVERS_GENERIC
99 select PINCTRL
100 select SMP_UP if SMP
101 select SWAP_IO_SPACE
102 select SYS_HAS_CPU_MIPS32_R1
103 select SYS_HAS_CPU_MIPS32_R2
104 select SYS_HAS_CPU_MIPS32_R6
105 select SYS_HAS_CPU_MIPS64_R1
106 select SYS_HAS_CPU_MIPS64_R2
107 select SYS_HAS_CPU_MIPS64_R6
108 select SYS_SUPPORTS_32BIT_KERNEL
109 select SYS_SUPPORTS_64BIT_KERNEL
110 select SYS_SUPPORTS_BIG_ENDIAN
111 select SYS_SUPPORTS_HIGHMEM
112 select SYS_SUPPORTS_LITTLE_ENDIAN
113 select SYS_SUPPORTS_MICROMIPS
114 select SYS_SUPPORTS_MIPS_CPS
115 select SYS_SUPPORTS_MIPS16
116 select SYS_SUPPORTS_MULTITHREADING
117 select SYS_SUPPORTS_RELOCATABLE
118 select SYS_SUPPORTS_SMARTMIPS
119 select USB_EHCI_BIG_ENDIAN_DESC if BIG_ENDIAN
120 select USB_EHCI_BIG_ENDIAN_MMIO if BIG_ENDIAN
121 select USB_OHCI_BIG_ENDIAN_DESC if BIG_ENDIAN
122 select USB_OHCI_BIG_ENDIAN_MMIO if BIG_ENDIAN
123 select USB_UHCI_BIG_ENDIAN_DESC if BIG_ENDIAN
124 select USB_UHCI_BIG_ENDIAN_MMIO if BIG_ENDIAN
125 select USE_OF
126 help
127 Select this to build a kernel which aims to support multiple boards,
128 generally using a flattened device tree passed from the bootloader
129 using the boot protocol defined in the UHI (Unified Hosting
130 Interface) specification.
131
132config MIPS_ALCHEMY
133 bool "Alchemy processor based machines"
134 select ARCH_PHYS_ADDR_T_64BIT
135 select CEVT_R4K
136 select CSRC_R4K
137 select IRQ_MIPS_CPU
138 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is
139 select SYS_HAS_CPU_MIPS32_R1
140 select SYS_SUPPORTS_32BIT_KERNEL
141 select SYS_SUPPORTS_APM_EMULATION
142 select GPIOLIB
143 select SYS_SUPPORTS_ZBOOT
144 select COMMON_CLK
145
146config AR7
147 bool "Texas Instruments AR7"
148 select BOOT_ELF32
149 select DMA_NONCOHERENT
150 select CEVT_R4K
151 select CSRC_R4K
152 select IRQ_MIPS_CPU
153 select NO_EXCEPT_FILL
154 select SWAP_IO_SPACE
155 select SYS_HAS_CPU_MIPS32_R1
156 select SYS_HAS_EARLY_PRINTK
157 select SYS_SUPPORTS_32BIT_KERNEL
158 select SYS_SUPPORTS_LITTLE_ENDIAN
159 select SYS_SUPPORTS_MIPS16
160 select SYS_SUPPORTS_ZBOOT_UART16550
161 select GPIOLIB
162 select VLYNQ
163 select HAVE_CLK
164 help
165 Support for the Texas Instruments AR7 System-on-a-Chip
166 family: TNETD7100, 7200 and 7300.
167
168config ATH25
169 bool "Atheros AR231x/AR531x SoC support"
170 select CEVT_R4K
171 select CSRC_R4K
172 select DMA_NONCOHERENT
173 select IRQ_MIPS_CPU
174 select IRQ_DOMAIN
175 select SYS_HAS_CPU_MIPS32_R1
176 select SYS_SUPPORTS_BIG_ENDIAN
177 select SYS_SUPPORTS_32BIT_KERNEL
178 select SYS_HAS_EARLY_PRINTK
179 help
180 Support for Atheros AR231x and Atheros AR531x based boards
181
182config ATH79
183 bool "Atheros AR71XX/AR724X/AR913X based boards"
184 select ARCH_HAS_RESET_CONTROLLER
185 select BOOT_RAW
186 select CEVT_R4K
187 select CSRC_R4K
188 select DMA_NONCOHERENT
189 select GPIOLIB
190 select HAVE_CLK
191 select COMMON_CLK
192 select CLKDEV_LOOKUP
193 select IRQ_MIPS_CPU
194 select MIPS_MACHINE
195 select SYS_HAS_CPU_MIPS32_R2
196 select SYS_HAS_EARLY_PRINTK
197 select SYS_SUPPORTS_32BIT_KERNEL
198 select SYS_SUPPORTS_BIG_ENDIAN
199 select SYS_SUPPORTS_MIPS16
200 select SYS_SUPPORTS_ZBOOT_UART_PROM
201 select USE_OF
202 help
203 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
204
205config BMIPS_GENERIC
206 bool "Broadcom Generic BMIPS kernel"
207 select BOOT_RAW
208 select NO_EXCEPT_FILL
209 select USE_OF
210 select CEVT_R4K
211 select CSRC_R4K
212 select SYNC_R4K
213 select COMMON_CLK
214 select BCM6345_L1_IRQ
215 select BCM7038_L1_IRQ
216 select BCM7120_L2_IRQ
217 select BRCMSTB_L2_IRQ
218 select IRQ_MIPS_CPU
219 select DMA_NONCOHERENT
220 select SYS_SUPPORTS_32BIT_KERNEL
221 select SYS_SUPPORTS_LITTLE_ENDIAN
222 select SYS_SUPPORTS_BIG_ENDIAN
223 select SYS_SUPPORTS_HIGHMEM
224 select SYS_HAS_CPU_BMIPS32_3300
225 select SYS_HAS_CPU_BMIPS4350
226 select SYS_HAS_CPU_BMIPS4380
227 select SYS_HAS_CPU_BMIPS5000
228 select SWAP_IO_SPACE
229 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
230 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
231 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
232 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
233 help
234 Build a generic DT-based kernel image that boots on select
235 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
236 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
237 must be set appropriately for your board.
238
239config BCM47XX
240 bool "Broadcom BCM47XX based boards"
241 select BOOT_RAW
242 select CEVT_R4K
243 select CSRC_R4K
244 select DMA_NONCOHERENT
245 select HW_HAS_PCI
246 select IRQ_MIPS_CPU
247 select SYS_HAS_CPU_MIPS32_R1
248 select NO_EXCEPT_FILL
249 select SYS_SUPPORTS_32BIT_KERNEL
250 select SYS_SUPPORTS_LITTLE_ENDIAN
251 select SYS_SUPPORTS_MIPS16
252 select SYS_HAS_EARLY_PRINTK
253 select USE_GENERIC_EARLY_PRINTK_8250
254 select GPIOLIB
255 select LEDS_GPIO_REGISTER
256 select BCM47XX_NVRAM
257 select BCM47XX_SPROM
258 help
259 Support for BCM47XX based boards
260
261config BCM63XX
262 bool "Broadcom BCM63XX based boards"
263 select BOOT_RAW
264 select CEVT_R4K
265 select CSRC_R4K
266 select SYNC_R4K
267 select DMA_NONCOHERENT
268 select IRQ_MIPS_CPU
269 select SYS_SUPPORTS_32BIT_KERNEL
270 select SYS_SUPPORTS_BIG_ENDIAN
271 select SYS_HAS_EARLY_PRINTK
272 select SWAP_IO_SPACE
273 select GPIOLIB
274 select HAVE_CLK
275 select MIPS_L1_CACHE_SHIFT_4
276 help
277 Support for BCM63XX based boards
278
279config MIPS_COBALT
280 bool "Cobalt Server"
281 select CEVT_R4K
282 select CSRC_R4K
283 select CEVT_GT641XX
284 select DMA_NONCOHERENT
285 select HW_HAS_PCI
286 select I8253
287 select I8259
288 select IRQ_MIPS_CPU
289 select IRQ_GT641XX
290 select PCI_GT64XXX_PCI0
291 select PCI
292 select SYS_HAS_CPU_NEVADA
293 select SYS_HAS_EARLY_PRINTK
294 select SYS_SUPPORTS_32BIT_KERNEL
295 select SYS_SUPPORTS_64BIT_KERNEL
296 select SYS_SUPPORTS_LITTLE_ENDIAN
297 select USE_GENERIC_EARLY_PRINTK_8250
298
299config MACH_DECSTATION
300 bool "DECstations"
301 select BOOT_ELF32
302 select CEVT_DS1287
303 select CEVT_R4K if CPU_R4X00
304 select CSRC_IOASIC
305 select CSRC_R4K if CPU_R4X00
306 select CPU_DADDI_WORKAROUNDS if 64BIT
307 select CPU_R4000_WORKAROUNDS if 64BIT
308 select CPU_R4400_WORKAROUNDS if 64BIT
309 select DMA_NONCOHERENT
310 select NO_IOPORT_MAP
311 select IRQ_MIPS_CPU
312 select SYS_HAS_CPU_R3000
313 select SYS_HAS_CPU_R4X00
314 select SYS_SUPPORTS_32BIT_KERNEL
315 select SYS_SUPPORTS_64BIT_KERNEL
316 select SYS_SUPPORTS_LITTLE_ENDIAN
317 select SYS_SUPPORTS_128HZ
318 select SYS_SUPPORTS_256HZ
319 select SYS_SUPPORTS_1024HZ
320 select MIPS_L1_CACHE_SHIFT_4
321 help
322 This enables support for DEC's MIPS based workstations. For details
323 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
324 DECstation porting pages on <http://decstation.unix-ag.org/>.
325
326 If you have one of the following DECstation Models you definitely
327 want to choose R4xx0 for the CPU Type:
328
329 DECstation 5000/50
330 DECstation 5000/150
331 DECstation 5000/260
332 DECsystem 5900/260
333
334 otherwise choose R3000.
335
336config MACH_JAZZ
337 bool "Jazz family of machines"
338 select FW_ARC
339 select FW_ARC32
340 select ARCH_MAY_HAVE_PC_FDC
341 select CEVT_R4K
342 select CSRC_R4K
343 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
344 select GENERIC_ISA_DMA
345 select HAVE_PCSPKR_PLATFORM
346 select IRQ_MIPS_CPU
347 select I8253
348 select I8259
349 select ISA
350 select SYS_HAS_CPU_R4X00
351 select SYS_SUPPORTS_32BIT_KERNEL
352 select SYS_SUPPORTS_64BIT_KERNEL
353 select SYS_SUPPORTS_100HZ
354 help
355 This a family of machines based on the MIPS R4030 chipset which was
356 used by several vendors to build RISC/os and Windows NT workstations.
357 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
358 Olivetti M700-10 workstations.
359
360config MACH_INGENIC
361 bool "Ingenic SoC based machines"
362 select SYS_SUPPORTS_32BIT_KERNEL
363 select SYS_SUPPORTS_LITTLE_ENDIAN
364 select SYS_SUPPORTS_ZBOOT_UART16550
365 select DMA_NONCOHERENT
366 select IRQ_MIPS_CPU
367 select GPIOLIB
368 select COMMON_CLK
369 select GENERIC_IRQ_CHIP
370 select BUILTIN_DTB
371 select USE_OF
372 select LIBFDT
373
374config LANTIQ
375 bool "Lantiq based platforms"
376 select DMA_NONCOHERENT
377 select IRQ_MIPS_CPU
378 select CEVT_R4K
379 select CSRC_R4K
380 select SYS_HAS_CPU_MIPS32_R1
381 select SYS_HAS_CPU_MIPS32_R2
382 select SYS_SUPPORTS_BIG_ENDIAN
383 select SYS_SUPPORTS_32BIT_KERNEL
384 select SYS_SUPPORTS_MIPS16
385 select SYS_SUPPORTS_MULTITHREADING
386 select SYS_HAS_EARLY_PRINTK
387 select GPIOLIB
388 select SWAP_IO_SPACE
389 select BOOT_RAW
390 select CLKDEV_LOOKUP
391 select USE_OF
392 select PINCTRL
393 select PINCTRL_LANTIQ
394 select ARCH_HAS_RESET_CONTROLLER
395 select RESET_CONTROLLER
396
397config LASAT
398 bool "LASAT Networks platforms"
399 select CEVT_R4K
400 select CRC32
401 select CSRC_R4K
402 select DMA_NONCOHERENT
403 select SYS_HAS_EARLY_PRINTK
404 select HW_HAS_PCI
405 select IRQ_MIPS_CPU
406 select PCI_GT64XXX_PCI0
407 select MIPS_NILE4
408 select R5000_CPU_SCACHE
409 select SYS_HAS_CPU_R5000
410 select SYS_SUPPORTS_32BIT_KERNEL
411 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
412 select SYS_SUPPORTS_LITTLE_ENDIAN
413
414config MACH_LOONGSON32
415 bool "Loongson-1 family of machines"
416 select SYS_SUPPORTS_ZBOOT
417 help
418 This enables support for the Loongson-1 family of machines.
419
420 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
421 the Institute of Computing Technology (ICT), Chinese Academy of
422 Sciences (CAS).
423
424config MACH_LOONGSON64
425 bool "Loongson-2/3 family of machines"
426 select SYS_SUPPORTS_ZBOOT
427 help
428 This enables the support of Loongson-2/3 family of machines.
429
430 Loongson-2 is a family of single-core CPUs and Loongson-3 is a
431 family of multi-core CPUs. They are both 64-bit general-purpose
432 MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute
433 of Computing Technology (ICT), Chinese Academy of Sciences (CAS)
434 in the People's Republic of China. The chief architect is Professor
435 Weiwu Hu.
436
437config MACH_PISTACHIO
438 bool "IMG Pistachio SoC based boards"
439 select BOOT_ELF32
440 select BOOT_RAW
441 select CEVT_R4K
442 select CLKSRC_MIPS_GIC
443 select COMMON_CLK
444 select CSRC_R4K
445 select DMA_NONCOHERENT
446 select GPIOLIB
447 select IRQ_MIPS_CPU
448 select LIBFDT
449 select MFD_SYSCON
450 select MIPS_CPU_SCACHE
451 select MIPS_GIC
452 select PINCTRL
453 select REGULATOR
454 select SYS_HAS_CPU_MIPS32_R2
455 select SYS_SUPPORTS_32BIT_KERNEL
456 select SYS_SUPPORTS_LITTLE_ENDIAN
457 select SYS_SUPPORTS_MIPS_CPS
458 select SYS_SUPPORTS_MULTITHREADING
459 select SYS_SUPPORTS_RELOCATABLE
460 select SYS_SUPPORTS_ZBOOT
461 select SYS_HAS_EARLY_PRINTK
462 select USE_GENERIC_EARLY_PRINTK_8250
463 select USE_OF
464 help
465 This enables support for the IMG Pistachio SoC platform.
466
467config MACH_XILFPGA
468 bool "MIPSfpga Xilinx based boards"
469 select BOOT_ELF32
470 select BOOT_RAW
471 select BUILTIN_DTB
472 select CEVT_R4K
473 select COMMON_CLK
474 select CSRC_R4K
475 select GPIOLIB
476 select IRQ_MIPS_CPU
477 select LIBFDT
478 select MIPS_CPU_SCACHE
479 select SYS_HAS_EARLY_PRINTK
480 select SYS_HAS_CPU_MIPS32_R2
481 select SYS_SUPPORTS_32BIT_KERNEL
482 select SYS_SUPPORTS_LITTLE_ENDIAN
483 select SYS_SUPPORTS_ZBOOT_UART16550
484 select USE_OF
485 select USE_GENERIC_EARLY_PRINTK_8250
486 select XILINX_INTC
487 help
488 This enables support for the IMG University Program MIPSfpga platform.
489
490config MIPS_MALTA
491 bool "MIPS Malta board"
492 select ARCH_MAY_HAVE_PC_FDC
493 select BOOT_ELF32
494 select BOOT_RAW
495 select BUILTIN_DTB
496 select CEVT_R4K
497 select CSRC_R4K
498 select CLKSRC_MIPS_GIC
499 select COMMON_CLK
500 select DMA_MAYBE_COHERENT
501 select GENERIC_ISA_DMA
502 select HAVE_PCSPKR_PLATFORM
503 select IRQ_MIPS_CPU
504 select MIPS_GIC
505 select HW_HAS_PCI
506 select I8253
507 select I8259
508 select MIPS_BONITO64
509 select MIPS_CPU_SCACHE
510 select MIPS_L1_CACHE_SHIFT_6
511 select PCI_GT64XXX_PCI0
512 select MIPS_MSC
513 select SMP_UP if SMP
514 select SWAP_IO_SPACE
515 select SYS_HAS_CPU_MIPS32_R1
516 select SYS_HAS_CPU_MIPS32_R2
517 select SYS_HAS_CPU_MIPS32_R3_5
518 select SYS_HAS_CPU_MIPS32_R5
519 select SYS_HAS_CPU_MIPS32_R6
520 select SYS_HAS_CPU_MIPS64_R1
521 select SYS_HAS_CPU_MIPS64_R2
522 select SYS_HAS_CPU_MIPS64_R6
523 select SYS_HAS_CPU_NEVADA
524 select SYS_HAS_CPU_RM7000
525 select SYS_SUPPORTS_32BIT_KERNEL
526 select SYS_SUPPORTS_64BIT_KERNEL
527 select SYS_SUPPORTS_BIG_ENDIAN
528 select SYS_SUPPORTS_HIGHMEM
529 select SYS_SUPPORTS_LITTLE_ENDIAN
530 select SYS_SUPPORTS_MICROMIPS
531 select SYS_SUPPORTS_MIPS_CMP
532 select SYS_SUPPORTS_MIPS_CPS
533 select SYS_SUPPORTS_MIPS16
534 select SYS_SUPPORTS_MULTITHREADING
535 select SYS_SUPPORTS_SMARTMIPS
536 select SYS_SUPPORTS_ZBOOT
537 select SYS_SUPPORTS_RELOCATABLE
538 select USE_OF
539 select LIBFDT
540 select ZONE_DMA32 if 64BIT
541 select BUILTIN_DTB
542 select LIBFDT
543 help
544 This enables support for the MIPS Technologies Malta evaluation
545 board.
546
547config MACH_PIC32
548 bool "Microchip PIC32 Family"
549 help
550 This enables support for the Microchip PIC32 family of platforms.
551
552 Microchip PIC32 is a family of general-purpose 32 bit MIPS core
553 microcontrollers.
554
555config NEC_MARKEINS
556 bool "NEC EMMA2RH Mark-eins board"
557 select SOC_EMMA2RH
558 select HW_HAS_PCI
559 help
560 This enables support for the NEC Electronics Mark-eins boards.
561
562config MACH_VR41XX
563 bool "NEC VR4100 series based machines"
564 select CEVT_R4K
565 select CSRC_R4K
566 select SYS_HAS_CPU_VR41XX
567 select SYS_SUPPORTS_MIPS16
568 select GPIOLIB
569
570config NXP_STB220
571 bool "NXP STB220 board"
572 select SOC_PNX833X
573 help
574 Support for NXP Semiconductors STB220 Development Board.
575
576config NXP_STB225
577 bool "NXP 225 board"
578 select SOC_PNX833X
579 select SOC_PNX8335
580 help
581 Support for NXP Semiconductors STB225 Development Board.
582
583config PMC_MSP
584 bool "PMC-Sierra MSP chipsets"
585 select CEVT_R4K
586 select CSRC_R4K
587 select DMA_NONCOHERENT
588 select SWAP_IO_SPACE
589 select NO_EXCEPT_FILL
590 select BOOT_RAW
591 select SYS_HAS_CPU_MIPS32_R1
592 select SYS_HAS_CPU_MIPS32_R2
593 select SYS_SUPPORTS_32BIT_KERNEL
594 select SYS_SUPPORTS_BIG_ENDIAN
595 select SYS_SUPPORTS_MIPS16
596 select IRQ_MIPS_CPU
597 select SERIAL_8250
598 select SERIAL_8250_CONSOLE
599 select USB_EHCI_BIG_ENDIAN_MMIO
600 select USB_EHCI_BIG_ENDIAN_DESC
601 help
602 This adds support for the PMC-Sierra family of Multi-Service
603 Processor System-On-A-Chips. These parts include a number
604 of integrated peripherals, interfaces and DSPs in addition to
605 a variety of MIPS cores.
606
607config RALINK
608 bool "Ralink based machines"
609 select CEVT_R4K
610 select CSRC_R4K
611 select BOOT_RAW
612 select DMA_NONCOHERENT
613 select IRQ_MIPS_CPU
614 select USE_OF
615 select SYS_HAS_CPU_MIPS32_R1
616 select SYS_HAS_CPU_MIPS32_R2
617 select SYS_SUPPORTS_32BIT_KERNEL
618 select SYS_SUPPORTS_LITTLE_ENDIAN
619 select SYS_SUPPORTS_MIPS16
620 select SYS_HAS_EARLY_PRINTK
621 select CLKDEV_LOOKUP
622 select ARCH_HAS_RESET_CONTROLLER
623 select RESET_CONTROLLER
624
625config SGI_IP22
626 bool "SGI IP22 (Indy/Indigo2)"
627 select FW_ARC
628 select FW_ARC32
629 select BOOT_ELF32
630 select CEVT_R4K
631 select CSRC_R4K
632 select DEFAULT_SGI_PARTITION
633 select DMA_NONCOHERENT
634 select HW_HAS_EISA
635 select I8253
636 select I8259
637 select IP22_CPU_SCACHE
638 select IRQ_MIPS_CPU
639 select GENERIC_ISA_DMA_SUPPORT_BROKEN
640 select SGI_HAS_I8042
641 select SGI_HAS_INDYDOG
642 select SGI_HAS_HAL2
643 select SGI_HAS_SEEQ
644 select SGI_HAS_WD93
645 select SGI_HAS_ZILOG
646 select SWAP_IO_SPACE
647 select SYS_HAS_CPU_R4X00
648 select SYS_HAS_CPU_R5000
649 #
650 # Disable EARLY_PRINTK for now since it leads to overwritten prom
651 # memory during early boot on some machines.
652 #
653 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
654 # for a more details discussion
655 #
656 # select SYS_HAS_EARLY_PRINTK
657 select SYS_SUPPORTS_32BIT_KERNEL
658 select SYS_SUPPORTS_64BIT_KERNEL
659 select SYS_SUPPORTS_BIG_ENDIAN
660 select MIPS_L1_CACHE_SHIFT_7
661 help
662 This are the SGI Indy, Challenge S and Indigo2, as well as certain
663 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
664 that runs on these, say Y here.
665
666config SGI_IP27
667 bool "SGI IP27 (Origin200/2000)"
668 select FW_ARC
669 select FW_ARC64
670 select BOOT_ELF64
671 select DEFAULT_SGI_PARTITION
672 select DMA_COHERENT
673 select SYS_HAS_EARLY_PRINTK
674 select HW_HAS_PCI
675 select NR_CPUS_DEFAULT_64
676 select SYS_HAS_CPU_R10000
677 select SYS_SUPPORTS_64BIT_KERNEL
678 select SYS_SUPPORTS_BIG_ENDIAN
679 select SYS_SUPPORTS_NUMA
680 select SYS_SUPPORTS_SMP
681 select MIPS_L1_CACHE_SHIFT_7
682 help
683 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
684 workstations. To compile a Linux kernel that runs on these, say Y
685 here.
686
687config SGI_IP28
688 bool "SGI IP28 (Indigo2 R10k)"
689 select FW_ARC
690 select FW_ARC64
691 select BOOT_ELF64
692 select CEVT_R4K
693 select CSRC_R4K
694 select DEFAULT_SGI_PARTITION
695 select DMA_NONCOHERENT
696 select GENERIC_ISA_DMA_SUPPORT_BROKEN
697 select IRQ_MIPS_CPU
698 select HW_HAS_EISA
699 select I8253
700 select I8259
701 select SGI_HAS_I8042
702 select SGI_HAS_INDYDOG
703 select SGI_HAS_HAL2
704 select SGI_HAS_SEEQ
705 select SGI_HAS_WD93
706 select SGI_HAS_ZILOG
707 select SWAP_IO_SPACE
708 select SYS_HAS_CPU_R10000
709 #
710 # Disable EARLY_PRINTK for now since it leads to overwritten prom
711 # memory during early boot on some machines.
712 #
713 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
714 # for a more details discussion
715 #
716 # select SYS_HAS_EARLY_PRINTK
717 select SYS_SUPPORTS_64BIT_KERNEL
718 select SYS_SUPPORTS_BIG_ENDIAN
719 select MIPS_L1_CACHE_SHIFT_7
720 help
721 This is the SGI Indigo2 with R10000 processor. To compile a Linux
722 kernel that runs on these, say Y here.
723
724config SGI_IP32
725 bool "SGI IP32 (O2)"
726 select FW_ARC
727 select FW_ARC32
728 select BOOT_ELF32
729 select CEVT_R4K
730 select CSRC_R4K
731 select DMA_NONCOHERENT
732 select HW_HAS_PCI
733 select IRQ_MIPS_CPU
734 select R5000_CPU_SCACHE
735 select RM7000_CPU_SCACHE
736 select SYS_HAS_CPU_R5000
737 select SYS_HAS_CPU_R10000 if BROKEN
738 select SYS_HAS_CPU_RM7000
739 select SYS_HAS_CPU_NEVADA
740 select SYS_SUPPORTS_64BIT_KERNEL
741 select SYS_SUPPORTS_BIG_ENDIAN
742 help
743 If you want this kernel to run on SGI O2 workstation, say Y here.
744
745config SIBYTE_CRHINE
746 bool "Sibyte BCM91120C-CRhine"
747 select BOOT_ELF32
748 select DMA_COHERENT
749 select SIBYTE_BCM1120
750 select SWAP_IO_SPACE
751 select SYS_HAS_CPU_SB1
752 select SYS_SUPPORTS_BIG_ENDIAN
753 select SYS_SUPPORTS_LITTLE_ENDIAN
754
755config SIBYTE_CARMEL
756 bool "Sibyte BCM91120x-Carmel"
757 select BOOT_ELF32
758 select DMA_COHERENT
759 select SIBYTE_BCM1120
760 select SWAP_IO_SPACE
761 select SYS_HAS_CPU_SB1
762 select SYS_SUPPORTS_BIG_ENDIAN
763 select SYS_SUPPORTS_LITTLE_ENDIAN
764
765config SIBYTE_CRHONE
766 bool "Sibyte BCM91125C-CRhone"
767 select BOOT_ELF32
768 select DMA_COHERENT
769 select SIBYTE_BCM1125
770 select SWAP_IO_SPACE
771 select SYS_HAS_CPU_SB1
772 select SYS_SUPPORTS_BIG_ENDIAN
773 select SYS_SUPPORTS_HIGHMEM
774 select SYS_SUPPORTS_LITTLE_ENDIAN
775
776config SIBYTE_RHONE
777 bool "Sibyte BCM91125E-Rhone"
778 select BOOT_ELF32
779 select DMA_COHERENT
780 select SIBYTE_BCM1125H
781 select SWAP_IO_SPACE
782 select SYS_HAS_CPU_SB1
783 select SYS_SUPPORTS_BIG_ENDIAN
784 select SYS_SUPPORTS_LITTLE_ENDIAN
785
786config SIBYTE_SWARM
787 bool "Sibyte BCM91250A-SWARM"
788 select BOOT_ELF32
789 select DMA_COHERENT
790 select HAVE_PATA_PLATFORM
791 select SIBYTE_SB1250
792 select SWAP_IO_SPACE
793 select SYS_HAS_CPU_SB1
794 select SYS_SUPPORTS_BIG_ENDIAN
795 select SYS_SUPPORTS_HIGHMEM
796 select SYS_SUPPORTS_LITTLE_ENDIAN
797 select ZONE_DMA32 if 64BIT
798
799config SIBYTE_LITTLESUR
800 bool "Sibyte BCM91250C2-LittleSur"
801 select BOOT_ELF32
802 select DMA_COHERENT
803 select HAVE_PATA_PLATFORM
804 select SIBYTE_SB1250
805 select SWAP_IO_SPACE
806 select SYS_HAS_CPU_SB1
807 select SYS_SUPPORTS_BIG_ENDIAN
808 select SYS_SUPPORTS_HIGHMEM
809 select SYS_SUPPORTS_LITTLE_ENDIAN
810
811config SIBYTE_SENTOSA
812 bool "Sibyte BCM91250E-Sentosa"
813 select BOOT_ELF32
814 select DMA_COHERENT
815 select SIBYTE_SB1250
816 select SWAP_IO_SPACE
817 select SYS_HAS_CPU_SB1
818 select SYS_SUPPORTS_BIG_ENDIAN
819 select SYS_SUPPORTS_LITTLE_ENDIAN
820
821config SIBYTE_BIGSUR
822 bool "Sibyte BCM91480B-BigSur"
823 select BOOT_ELF32
824 select DMA_COHERENT
825 select NR_CPUS_DEFAULT_4
826 select SIBYTE_BCM1x80
827 select SWAP_IO_SPACE
828 select SYS_HAS_CPU_SB1
829 select SYS_SUPPORTS_BIG_ENDIAN
830 select SYS_SUPPORTS_HIGHMEM
831 select SYS_SUPPORTS_LITTLE_ENDIAN
832 select ZONE_DMA32 if 64BIT
833
834config SNI_RM
835 bool "SNI RM200/300/400"
836 select FW_ARC if CPU_LITTLE_ENDIAN
837 select FW_ARC32 if CPU_LITTLE_ENDIAN
838 select FW_SNIPROM if CPU_BIG_ENDIAN
839 select ARCH_MAY_HAVE_PC_FDC
840 select BOOT_ELF32
841 select CEVT_R4K
842 select CSRC_R4K
843 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
844 select DMA_NONCOHERENT
845 select GENERIC_ISA_DMA
846 select HAVE_PCSPKR_PLATFORM
847 select HW_HAS_EISA
848 select HW_HAS_PCI
849 select IRQ_MIPS_CPU
850 select I8253
851 select I8259
852 select ISA
853 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
854 select SYS_HAS_CPU_R4X00
855 select SYS_HAS_CPU_R5000
856 select SYS_HAS_CPU_R10000
857 select R5000_CPU_SCACHE
858 select SYS_HAS_EARLY_PRINTK
859 select SYS_SUPPORTS_32BIT_KERNEL
860 select SYS_SUPPORTS_64BIT_KERNEL
861 select SYS_SUPPORTS_BIG_ENDIAN
862 select SYS_SUPPORTS_HIGHMEM
863 select SYS_SUPPORTS_LITTLE_ENDIAN
864 help
865 The SNI RM200/300/400 are MIPS-based machines manufactured by
866 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
867 Technology and now in turn merged with Fujitsu. Say Y here to
868 support this machine type.
869
870config MACH_TX39XX
871 bool "Toshiba TX39 series based machines"
872
873config MACH_TX49XX
874 bool "Toshiba TX49 series based machines"
875
876config MIKROTIK_RB532
877 bool "Mikrotik RB532 boards"
878 select CEVT_R4K
879 select CSRC_R4K
880 select DMA_NONCOHERENT
881 select HW_HAS_PCI
882 select IRQ_MIPS_CPU
883 select SYS_HAS_CPU_MIPS32_R1
884 select SYS_SUPPORTS_32BIT_KERNEL
885 select SYS_SUPPORTS_LITTLE_ENDIAN
886 select SWAP_IO_SPACE
887 select BOOT_RAW
888 select GPIOLIB
889 select MIPS_L1_CACHE_SHIFT_4
890 help
891 Support the Mikrotik(tm) RouterBoard 532 series,
892 based on the IDT RC32434 SoC.
893
894config CAVIUM_OCTEON_SOC
895 bool "Cavium Networks Octeon SoC based boards"
896 select CEVT_R4K
897 select ARCH_PHYS_ADDR_T_64BIT
898 select DMA_COHERENT
899 select SYS_SUPPORTS_64BIT_KERNEL
900 select SYS_SUPPORTS_BIG_ENDIAN
901 select EDAC_SUPPORT
902 select EDAC_ATOMIC_SCRUB
903 select SYS_SUPPORTS_LITTLE_ENDIAN
904 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
905 select SYS_HAS_EARLY_PRINTK
906 select SYS_HAS_CPU_CAVIUM_OCTEON
907 select HW_HAS_PCI
908 select ZONE_DMA32
909 select HOLES_IN_ZONE
910 select GPIOLIB
911 select LIBFDT
912 select USE_OF
913 select ARCH_SPARSEMEM_ENABLE
914 select SYS_SUPPORTS_SMP
915 select NR_CPUS_DEFAULT_16
916 select BUILTIN_DTB
917 select MTD_COMPLEX_MAPPINGS
918 select SYS_SUPPORTS_RELOCATABLE
919 help
920 This option supports all of the Octeon reference boards from Cavium
921 Networks. It builds a kernel that dynamically determines the Octeon
922 CPU type and supports all known board reference implementations.
923 Some of the supported boards are:
924 EBT3000
925 EBH3000
926 EBH3100
927 Thunder
928 Kodama
929 Hikari
930 Say Y here for most Octeon reference boards.
931
932config NLM_XLR_BOARD
933 bool "Netlogic XLR/XLS based systems"
934 select BOOT_ELF32
935 select NLM_COMMON
936 select SYS_HAS_CPU_XLR
937 select SYS_SUPPORTS_SMP
938 select HW_HAS_PCI
939 select SWAP_IO_SPACE
940 select SYS_SUPPORTS_32BIT_KERNEL
941 select SYS_SUPPORTS_64BIT_KERNEL
942 select ARCH_PHYS_ADDR_T_64BIT
943 select SYS_SUPPORTS_BIG_ENDIAN
944 select SYS_SUPPORTS_HIGHMEM
945 select DMA_COHERENT
946 select NR_CPUS_DEFAULT_32
947 select CEVT_R4K
948 select CSRC_R4K
949 select IRQ_MIPS_CPU
950 select ZONE_DMA32 if 64BIT
951 select SYNC_R4K
952 select SYS_HAS_EARLY_PRINTK
953 select SYS_SUPPORTS_ZBOOT
954 select SYS_SUPPORTS_ZBOOT_UART16550
955 help
956 Support for systems based on Netlogic XLR and XLS processors.
957 Say Y here if you have a XLR or XLS based board.
958
959config NLM_XLP_BOARD
960 bool "Netlogic XLP based systems"
961 select BOOT_ELF32
962 select NLM_COMMON
963 select SYS_HAS_CPU_XLP
964 select SYS_SUPPORTS_SMP
965 select HW_HAS_PCI
966 select SYS_SUPPORTS_32BIT_KERNEL
967 select SYS_SUPPORTS_64BIT_KERNEL
968 select ARCH_PHYS_ADDR_T_64BIT
969 select GPIOLIB
970 select SYS_SUPPORTS_BIG_ENDIAN
971 select SYS_SUPPORTS_LITTLE_ENDIAN
972 select SYS_SUPPORTS_HIGHMEM
973 select DMA_COHERENT
974 select NR_CPUS_DEFAULT_32
975 select CEVT_R4K
976 select CSRC_R4K
977 select IRQ_MIPS_CPU
978 select ZONE_DMA32 if 64BIT
979 select SYNC_R4K
980 select SYS_HAS_EARLY_PRINTK
981 select USE_OF
982 select SYS_SUPPORTS_ZBOOT
983 select SYS_SUPPORTS_ZBOOT_UART16550
984 help
985 This board is based on Netlogic XLP Processor.
986 Say Y here if you have a XLP based board.
987
988config MIPS_PARAVIRT
989 bool "Para-Virtualized guest system"
990 select CEVT_R4K
991 select CSRC_R4K
992 select DMA_COHERENT
993 select SYS_SUPPORTS_64BIT_KERNEL
994 select SYS_SUPPORTS_32BIT_KERNEL
995 select SYS_SUPPORTS_BIG_ENDIAN
996 select SYS_SUPPORTS_SMP
997 select NR_CPUS_DEFAULT_4
998 select SYS_HAS_EARLY_PRINTK
999 select SYS_HAS_CPU_MIPS32_R2
1000 select SYS_HAS_CPU_MIPS64_R2
1001 select SYS_HAS_CPU_CAVIUM_OCTEON
1002 select HW_HAS_PCI
1003 select SWAP_IO_SPACE
1004 help
1005 This option supports guest running under ????
1006
1007endchoice
1008
1009source "arch/mips/alchemy/Kconfig"
1010source "arch/mips/ath25/Kconfig"
1011source "arch/mips/ath79/Kconfig"
1012source "arch/mips/bcm47xx/Kconfig"
1013source "arch/mips/bcm63xx/Kconfig"
1014source "arch/mips/bmips/Kconfig"
1015source "arch/mips/generic/Kconfig"
1016source "arch/mips/jazz/Kconfig"
1017source "arch/mips/jz4740/Kconfig"
1018source "arch/mips/lantiq/Kconfig"
1019source "arch/mips/lasat/Kconfig"
1020source "arch/mips/pic32/Kconfig"
1021source "arch/mips/pistachio/Kconfig"
1022source "arch/mips/pmcs-msp71xx/Kconfig"
1023source "arch/mips/ralink/Kconfig"
1024source "arch/mips/sgi-ip27/Kconfig"
1025source "arch/mips/sibyte/Kconfig"
1026source "arch/mips/txx9/Kconfig"
1027source "arch/mips/vr41xx/Kconfig"
1028source "arch/mips/cavium-octeon/Kconfig"
1029source "arch/mips/loongson32/Kconfig"
1030source "arch/mips/loongson64/Kconfig"
1031source "arch/mips/netlogic/Kconfig"
1032source "arch/mips/paravirt/Kconfig"
1033source "arch/mips/xilfpga/Kconfig"
1034
1035endmenu
1036
1037config RWSEM_GENERIC_SPINLOCK
1038 bool
1039 default y
1040
1041config RWSEM_XCHGADD_ALGORITHM
1042 bool
1043
1044config GENERIC_HWEIGHT
1045 bool
1046 default y
1047
1048config GENERIC_CALIBRATE_DELAY
1049 bool
1050 default y
1051
1052config SCHED_OMIT_FRAME_POINTER
1053 bool
1054 default y
1055
1056#
1057# Select some configuration options automatically based on user selections.
1058#
1059config FW_ARC
1060 bool
1061
1062config ARCH_MAY_HAVE_PC_FDC
1063 bool
1064
1065config BOOT_RAW
1066 bool
1067
1068config CEVT_BCM1480
1069 bool
1070
1071config CEVT_DS1287
1072 bool
1073
1074config CEVT_GT641XX
1075 bool
1076
1077config CEVT_R4K
1078 bool
1079
1080config CEVT_SB1250
1081 bool
1082
1083config CEVT_TXX9
1084 bool
1085
1086config CSRC_BCM1480
1087 bool
1088
1089config CSRC_IOASIC
1090 bool
1091
1092config CSRC_R4K
1093 bool
1094
1095config CSRC_SB1250
1096 bool
1097
1098config MIPS_CLOCK_VSYSCALL
1099 def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1100
1101config GPIO_TXX9
1102 select GPIOLIB
1103 bool
1104
1105config FW_CFE
1106 bool
1107
1108config ARCH_DMA_ADDR_T_64BIT
1109 def_bool (HIGHMEM && ARCH_PHYS_ADDR_T_64BIT) || 64BIT
1110
1111config ARCH_SUPPORTS_UPROBES
1112 bool
1113
1114config DMA_MAYBE_COHERENT
1115 select DMA_NONCOHERENT
1116 bool
1117
1118config DMA_PERDEV_COHERENT
1119 bool
1120 select DMA_MAYBE_COHERENT
1121
1122config DMA_COHERENT
1123 bool
1124
1125config DMA_NONCOHERENT
1126 bool
1127 select NEED_DMA_MAP_STATE
1128
1129config NEED_DMA_MAP_STATE
1130 bool
1131
1132config SYS_HAS_EARLY_PRINTK
1133 bool
1134
1135config SYS_SUPPORTS_HOTPLUG_CPU
1136 bool
1137
1138config MIPS_BONITO64
1139 bool
1140
1141config MIPS_MSC
1142 bool
1143
1144config MIPS_NILE4
1145 bool
1146
1147config SYNC_R4K
1148 bool
1149
1150config MIPS_MACHINE
1151 def_bool n
1152
1153config NO_IOPORT_MAP
1154 def_bool n
1155
1156config GENERIC_CSUM
1157 bool
1158
1159config GENERIC_ISA_DMA
1160 bool
1161 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1162 select ISA_DMA_API
1163
1164config GENERIC_ISA_DMA_SUPPORT_BROKEN
1165 bool
1166 select GENERIC_ISA_DMA
1167
1168config ISA_DMA_API
1169 bool
1170
1171config HOLES_IN_ZONE
1172 bool
1173
1174config SYS_SUPPORTS_RELOCATABLE
1175 bool
1176 help
1177 Selected if the platform supports relocating the kernel.
1178 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1179 to allow access to command line and entropy sources.
1180
1181#
1182# Endianness selection. Sufficiently obscure so many users don't know what to
1183# answer,so we try hard to limit the available choices. Also the use of a
1184# choice statement should be more obvious to the user.
1185#
1186choice
1187 prompt "Endianness selection"
1188 help
1189 Some MIPS machines can be configured for either little or big endian
1190 byte order. These modes require different kernels and a different
1191 Linux distribution. In general there is one preferred byteorder for a
1192 particular system but some systems are just as commonly used in the
1193 one or the other endianness.
1194
1195config CPU_BIG_ENDIAN
1196 bool "Big endian"
1197 depends on SYS_SUPPORTS_BIG_ENDIAN
1198
1199config CPU_LITTLE_ENDIAN
1200 bool "Little endian"
1201 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1202
1203endchoice
1204
1205config EXPORT_UASM
1206 bool
1207
1208config SYS_SUPPORTS_APM_EMULATION
1209 bool
1210
1211config SYS_SUPPORTS_BIG_ENDIAN
1212 bool
1213
1214config SYS_SUPPORTS_LITTLE_ENDIAN
1215 bool
1216
1217config SYS_SUPPORTS_HUGETLBFS
1218 bool
1219 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1220 default y
1221
1222config MIPS_HUGE_TLB_SUPPORT
1223 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1224
1225config IRQ_CPU_RM7K
1226 bool
1227
1228config IRQ_MSP_SLP
1229 bool
1230
1231config IRQ_MSP_CIC
1232 bool
1233
1234config IRQ_TXX9
1235 bool
1236
1237config IRQ_GT641XX
1238 bool
1239
1240config PCI_GT64XXX_PCI0
1241 bool
1242
1243config NO_EXCEPT_FILL
1244 bool
1245
1246config SOC_EMMA2RH
1247 bool
1248 select CEVT_R4K
1249 select CSRC_R4K
1250 select DMA_NONCOHERENT
1251 select IRQ_MIPS_CPU
1252 select SWAP_IO_SPACE
1253 select SYS_HAS_CPU_R5500
1254 select SYS_SUPPORTS_32BIT_KERNEL
1255 select SYS_SUPPORTS_64BIT_KERNEL
1256 select SYS_SUPPORTS_BIG_ENDIAN
1257
1258config SOC_PNX833X
1259 bool
1260 select CEVT_R4K
1261 select CSRC_R4K
1262 select IRQ_MIPS_CPU
1263 select DMA_NONCOHERENT
1264 select SYS_HAS_CPU_MIPS32_R2
1265 select SYS_SUPPORTS_32BIT_KERNEL
1266 select SYS_SUPPORTS_LITTLE_ENDIAN
1267 select SYS_SUPPORTS_BIG_ENDIAN
1268 select SYS_SUPPORTS_MIPS16
1269 select CPU_MIPSR2_IRQ_VI
1270
1271config SOC_PNX8335
1272 bool
1273 select SOC_PNX833X
1274
1275config MIPS_SPRAM
1276 bool
1277
1278config SWAP_IO_SPACE
1279 bool
1280
1281config SGI_HAS_INDYDOG
1282 bool
1283
1284config SGI_HAS_HAL2
1285 bool
1286
1287config SGI_HAS_SEEQ
1288 bool
1289
1290config SGI_HAS_WD93
1291 bool
1292
1293config SGI_HAS_ZILOG
1294 bool
1295
1296config SGI_HAS_I8042
1297 bool
1298
1299config DEFAULT_SGI_PARTITION
1300 bool
1301
1302config FW_ARC32
1303 bool
1304
1305config FW_SNIPROM
1306 bool
1307
1308config BOOT_ELF32
1309 bool
1310
1311config MIPS_L1_CACHE_SHIFT_4
1312 bool
1313
1314config MIPS_L1_CACHE_SHIFT_5
1315 bool
1316
1317config MIPS_L1_CACHE_SHIFT_6
1318 bool
1319
1320config MIPS_L1_CACHE_SHIFT_7
1321 bool
1322
1323config MIPS_L1_CACHE_SHIFT
1324 int
1325 default "7" if MIPS_L1_CACHE_SHIFT_7
1326 default "6" if MIPS_L1_CACHE_SHIFT_6
1327 default "5" if MIPS_L1_CACHE_SHIFT_5
1328 default "4" if MIPS_L1_CACHE_SHIFT_4
1329 default "5"
1330
1331config HAVE_STD_PC_SERIAL_PORT
1332 bool
1333
1334config ARC_CONSOLE
1335 bool "ARC console support"
1336 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1337
1338config ARC_MEMORY
1339 bool
1340 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1341 default y
1342
1343config ARC_PROMLIB
1344 bool
1345 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1346 default y
1347
1348config FW_ARC64
1349 bool
1350
1351config BOOT_ELF64
1352 bool
1353
1354menu "CPU selection"
1355
1356choice
1357 prompt "CPU type"
1358 default CPU_R4X00
1359
1360config CPU_LOONGSON3
1361 bool "Loongson 3 CPU"
1362 depends on SYS_HAS_CPU_LOONGSON3
1363 select CPU_SUPPORTS_64BIT_KERNEL
1364 select CPU_SUPPORTS_HIGHMEM
1365 select CPU_SUPPORTS_HUGEPAGES
1366 select WEAK_ORDERING
1367 select WEAK_REORDERING_BEYOND_LLSC
1368 select MIPS_PGD_C0_CONTEXT
1369 select MIPS_L1_CACHE_SHIFT_6
1370 select GPIOLIB
1371 help
1372 The Loongson 3 processor implements the MIPS64R2 instruction
1373 set with many extensions.
1374
1375config LOONGSON3_ENHANCEMENT
1376 bool "New Loongson 3 CPU Enhancements"
1377 default n
1378 select CPU_MIPSR2
1379 select CPU_HAS_PREFETCH
1380 depends on CPU_LOONGSON3
1381 help
1382 New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A
1383 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1384 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User
1385 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1386 Fast TLB refill support, etc.
1387
1388 This option enable those enhancements which are not probed at run
1389 time. If you want a generic kernel to run on all Loongson 3 machines,
1390 please say 'N' here. If you want a high-performance kernel to run on
1391 new Loongson 3 machines only, please say 'Y' here.
1392
1393config CPU_LOONGSON2E
1394 bool "Loongson 2E"
1395 depends on SYS_HAS_CPU_LOONGSON2E
1396 select CPU_LOONGSON2
1397 help
1398 The Loongson 2E processor implements the MIPS III instruction set
1399 with many extensions.
1400
1401 It has an internal FPGA northbridge, which is compatible to
1402 bonito64.
1403
1404config CPU_LOONGSON2F
1405 bool "Loongson 2F"
1406 depends on SYS_HAS_CPU_LOONGSON2F
1407 select CPU_LOONGSON2
1408 select GPIOLIB
1409 help
1410 The Loongson 2F processor implements the MIPS III instruction set
1411 with many extensions.
1412
1413 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1414 have a similar programming interface with FPGA northbridge used in
1415 Loongson2E.
1416
1417config CPU_LOONGSON1B
1418 bool "Loongson 1B"
1419 depends on SYS_HAS_CPU_LOONGSON1B
1420 select CPU_LOONGSON1
1421 select LEDS_GPIO_REGISTER
1422 help
1423 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1424 release 2 instruction set.
1425
1426config CPU_LOONGSON1C
1427 bool "Loongson 1C"
1428 depends on SYS_HAS_CPU_LOONGSON1C
1429 select CPU_LOONGSON1
1430 select LEDS_GPIO_REGISTER
1431 help
1432 The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1433 release 2 instruction set.
1434
1435config CPU_MIPS32_R1
1436 bool "MIPS32 Release 1"
1437 depends on SYS_HAS_CPU_MIPS32_R1
1438 select CPU_HAS_PREFETCH
1439 select CPU_SUPPORTS_32BIT_KERNEL
1440 select CPU_SUPPORTS_HIGHMEM
1441 help
1442 Choose this option to build a kernel for release 1 or later of the
1443 MIPS32 architecture. Most modern embedded systems with a 32-bit
1444 MIPS processor are based on a MIPS32 processor. If you know the
1445 specific type of processor in your system, choose those that one
1446 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1447 Release 2 of the MIPS32 architecture is available since several
1448 years so chances are you even have a MIPS32 Release 2 processor
1449 in which case you should choose CPU_MIPS32_R2 instead for better
1450 performance.
1451
1452config CPU_MIPS32_R2
1453 bool "MIPS32 Release 2"
1454 depends on SYS_HAS_CPU_MIPS32_R2
1455 select CPU_HAS_PREFETCH
1456 select CPU_SUPPORTS_32BIT_KERNEL
1457 select CPU_SUPPORTS_HIGHMEM
1458 select CPU_SUPPORTS_MSA
1459 select HAVE_KVM
1460 help
1461 Choose this option to build a kernel for release 2 or later of the
1462 MIPS32 architecture. Most modern embedded systems with a 32-bit
1463 MIPS processor are based on a MIPS32 processor. If you know the
1464 specific type of processor in your system, choose those that one
1465 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1466
1467config CPU_MIPS32_R6
1468 bool "MIPS32 Release 6"
1469 depends on SYS_HAS_CPU_MIPS32_R6
1470 select CPU_HAS_PREFETCH
1471 select CPU_SUPPORTS_32BIT_KERNEL
1472 select CPU_SUPPORTS_HIGHMEM
1473 select CPU_SUPPORTS_MSA
1474 select GENERIC_CSUM
1475 select HAVE_KVM
1476 select MIPS_O32_FP64_SUPPORT
1477 help
1478 Choose this option to build a kernel for release 6 or later of the
1479 MIPS32 architecture. New MIPS processors, starting with the Warrior
1480 family, are based on a MIPS32r6 processor. If you own an older
1481 processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1482
1483config CPU_MIPS64_R1
1484 bool "MIPS64 Release 1"
1485 depends on SYS_HAS_CPU_MIPS64_R1
1486 select CPU_HAS_PREFETCH
1487 select CPU_SUPPORTS_32BIT_KERNEL
1488 select CPU_SUPPORTS_64BIT_KERNEL
1489 select CPU_SUPPORTS_HIGHMEM
1490 select CPU_SUPPORTS_HUGEPAGES
1491 help
1492 Choose this option to build a kernel for release 1 or later of the
1493 MIPS64 architecture. Many modern embedded systems with a 64-bit
1494 MIPS processor are based on a MIPS64 processor. If you know the
1495 specific type of processor in your system, choose those that one
1496 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1497 Release 2 of the MIPS64 architecture is available since several
1498 years so chances are you even have a MIPS64 Release 2 processor
1499 in which case you should choose CPU_MIPS64_R2 instead for better
1500 performance.
1501
1502config CPU_MIPS64_R2
1503 bool "MIPS64 Release 2"
1504 depends on SYS_HAS_CPU_MIPS64_R2
1505 select CPU_HAS_PREFETCH
1506 select CPU_SUPPORTS_32BIT_KERNEL
1507 select CPU_SUPPORTS_64BIT_KERNEL
1508 select CPU_SUPPORTS_HIGHMEM
1509 select CPU_SUPPORTS_HUGEPAGES
1510 select CPU_SUPPORTS_MSA
1511 select HAVE_KVM
1512 help
1513 Choose this option to build a kernel for release 2 or later of the
1514 MIPS64 architecture. Many modern embedded systems with a 64-bit
1515 MIPS processor are based on a MIPS64 processor. If you know the
1516 specific type of processor in your system, choose those that one
1517 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1518
1519config CPU_MIPS64_R6
1520 bool "MIPS64 Release 6"
1521 depends on SYS_HAS_CPU_MIPS64_R6
1522 select CPU_HAS_PREFETCH
1523 select CPU_SUPPORTS_32BIT_KERNEL
1524 select CPU_SUPPORTS_64BIT_KERNEL
1525 select CPU_SUPPORTS_HIGHMEM
1526 select CPU_SUPPORTS_MSA
1527 select GENERIC_CSUM
1528 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1529 select HAVE_KVM
1530 help
1531 Choose this option to build a kernel for release 6 or later of the
1532 MIPS64 architecture. New MIPS processors, starting with the Warrior
1533 family, are based on a MIPS64r6 processor. If you own an older
1534 processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1535
1536config CPU_R3000
1537 bool "R3000"
1538 depends on SYS_HAS_CPU_R3000
1539 select CPU_HAS_WB
1540 select CPU_SUPPORTS_32BIT_KERNEL
1541 select CPU_SUPPORTS_HIGHMEM
1542 help
1543 Please make sure to pick the right CPU type. Linux/MIPS is not
1544 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1545 *not* work on R4000 machines and vice versa. However, since most
1546 of the supported machines have an R4000 (or similar) CPU, R4x00
1547 might be a safe bet. If the resulting kernel does not work,
1548 try to recompile with R3000.
1549
1550config CPU_TX39XX
1551 bool "R39XX"
1552 depends on SYS_HAS_CPU_TX39XX
1553 select CPU_SUPPORTS_32BIT_KERNEL
1554
1555config CPU_VR41XX
1556 bool "R41xx"
1557 depends on SYS_HAS_CPU_VR41XX
1558 select CPU_SUPPORTS_32BIT_KERNEL
1559 select CPU_SUPPORTS_64BIT_KERNEL
1560 help
1561 The options selects support for the NEC VR4100 series of processors.
1562 Only choose this option if you have one of these processors as a
1563 kernel built with this option will not run on any other type of
1564 processor or vice versa.
1565
1566config CPU_R4300
1567 bool "R4300"
1568 depends on SYS_HAS_CPU_R4300
1569 select CPU_SUPPORTS_32BIT_KERNEL
1570 select CPU_SUPPORTS_64BIT_KERNEL
1571 help
1572 MIPS Technologies R4300-series processors.
1573
1574config CPU_R4X00
1575 bool "R4x00"
1576 depends on SYS_HAS_CPU_R4X00
1577 select CPU_SUPPORTS_32BIT_KERNEL
1578 select CPU_SUPPORTS_64BIT_KERNEL
1579 select CPU_SUPPORTS_HUGEPAGES
1580 help
1581 MIPS Technologies R4000-series processors other than 4300, including
1582 the R4000, R4400, R4600, and 4700.
1583
1584config CPU_TX49XX
1585 bool "R49XX"
1586 depends on SYS_HAS_CPU_TX49XX
1587 select CPU_HAS_PREFETCH
1588 select CPU_SUPPORTS_32BIT_KERNEL
1589 select CPU_SUPPORTS_64BIT_KERNEL
1590 select CPU_SUPPORTS_HUGEPAGES
1591
1592config CPU_R5000
1593 bool "R5000"
1594 depends on SYS_HAS_CPU_R5000
1595 select CPU_SUPPORTS_32BIT_KERNEL
1596 select CPU_SUPPORTS_64BIT_KERNEL
1597 select CPU_SUPPORTS_HUGEPAGES
1598 help
1599 MIPS Technologies R5000-series processors other than the Nevada.
1600
1601config CPU_R5432
1602 bool "R5432"
1603 depends on SYS_HAS_CPU_R5432
1604 select CPU_SUPPORTS_32BIT_KERNEL
1605 select CPU_SUPPORTS_64BIT_KERNEL
1606 select CPU_SUPPORTS_HUGEPAGES
1607
1608config CPU_R5500
1609 bool "R5500"
1610 depends on SYS_HAS_CPU_R5500
1611 select CPU_SUPPORTS_32BIT_KERNEL
1612 select CPU_SUPPORTS_64BIT_KERNEL
1613 select CPU_SUPPORTS_HUGEPAGES
1614 help
1615 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1616 instruction set.
1617
1618config CPU_R6000
1619 bool "R6000"
1620 depends on SYS_HAS_CPU_R6000
1621 select CPU_SUPPORTS_32BIT_KERNEL
1622 help
1623 MIPS Technologies R6000 and R6000A series processors. Note these
1624 processors are extremely rare and the support for them is incomplete.
1625
1626config CPU_NEVADA
1627 bool "RM52xx"
1628 depends on SYS_HAS_CPU_NEVADA
1629 select CPU_SUPPORTS_32BIT_KERNEL
1630 select CPU_SUPPORTS_64BIT_KERNEL
1631 select CPU_SUPPORTS_HUGEPAGES
1632 help
1633 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1634
1635config CPU_R8000
1636 bool "R8000"
1637 depends on SYS_HAS_CPU_R8000
1638 select CPU_HAS_PREFETCH
1639 select CPU_SUPPORTS_64BIT_KERNEL
1640 help
1641 MIPS Technologies R8000 processors. Note these processors are
1642 uncommon and the support for them is incomplete.
1643
1644config CPU_R10000
1645 bool "R10000"
1646 depends on SYS_HAS_CPU_R10000
1647 select CPU_HAS_PREFETCH
1648 select CPU_SUPPORTS_32BIT_KERNEL
1649 select CPU_SUPPORTS_64BIT_KERNEL
1650 select CPU_SUPPORTS_HIGHMEM
1651 select CPU_SUPPORTS_HUGEPAGES
1652 help
1653 MIPS Technologies R10000-series processors.
1654
1655config CPU_RM7000
1656 bool "RM7000"
1657 depends on SYS_HAS_CPU_RM7000
1658 select CPU_HAS_PREFETCH
1659 select CPU_SUPPORTS_32BIT_KERNEL
1660 select CPU_SUPPORTS_64BIT_KERNEL
1661 select CPU_SUPPORTS_HIGHMEM
1662 select CPU_SUPPORTS_HUGEPAGES
1663
1664config CPU_SB1
1665 bool "SB1"
1666 depends on SYS_HAS_CPU_SB1
1667 select CPU_SUPPORTS_32BIT_KERNEL
1668 select CPU_SUPPORTS_64BIT_KERNEL
1669 select CPU_SUPPORTS_HIGHMEM
1670 select CPU_SUPPORTS_HUGEPAGES
1671 select WEAK_ORDERING
1672
1673config CPU_CAVIUM_OCTEON
1674 bool "Cavium Octeon processor"
1675 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1676 select CPU_HAS_PREFETCH
1677 select CPU_SUPPORTS_64BIT_KERNEL
1678 select WEAK_ORDERING
1679 select CPU_SUPPORTS_HIGHMEM
1680 select CPU_SUPPORTS_HUGEPAGES
1681 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1682 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1683 select MIPS_L1_CACHE_SHIFT_7
1684 select HAVE_KVM
1685 help
1686 The Cavium Octeon processor is a highly integrated chip containing
1687 many ethernet hardware widgets for networking tasks. The processor
1688 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1689 Full details can be found at http://www.caviumnetworks.com.
1690
1691config CPU_BMIPS
1692 bool "Broadcom BMIPS"
1693 depends on SYS_HAS_CPU_BMIPS
1694 select CPU_MIPS32
1695 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1696 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1697 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1698 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1699 select CPU_SUPPORTS_32BIT_KERNEL
1700 select DMA_NONCOHERENT
1701 select IRQ_MIPS_CPU
1702 select SWAP_IO_SPACE
1703 select WEAK_ORDERING
1704 select CPU_SUPPORTS_HIGHMEM
1705 select CPU_HAS_PREFETCH
1706 select CPU_SUPPORTS_CPUFREQ
1707 select MIPS_EXTERNAL_TIMER
1708 help
1709 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1710
1711config CPU_XLR
1712 bool "Netlogic XLR SoC"
1713 depends on SYS_HAS_CPU_XLR
1714 select CPU_SUPPORTS_32BIT_KERNEL
1715 select CPU_SUPPORTS_64BIT_KERNEL
1716 select CPU_SUPPORTS_HIGHMEM
1717 select CPU_SUPPORTS_HUGEPAGES
1718 select WEAK_ORDERING
1719 select WEAK_REORDERING_BEYOND_LLSC
1720 help
1721 Netlogic Microsystems XLR/XLS processors.
1722
1723config CPU_XLP
1724 bool "Netlogic XLP SoC"
1725 depends on SYS_HAS_CPU_XLP
1726 select CPU_SUPPORTS_32BIT_KERNEL
1727 select CPU_SUPPORTS_64BIT_KERNEL
1728 select CPU_SUPPORTS_HIGHMEM
1729 select WEAK_ORDERING
1730 select WEAK_REORDERING_BEYOND_LLSC
1731 select CPU_HAS_PREFETCH
1732 select CPU_MIPSR2
1733 select CPU_SUPPORTS_HUGEPAGES
1734 select MIPS_ASID_BITS_VARIABLE
1735 help
1736 Netlogic Microsystems XLP processors.
1737endchoice
1738
1739config CPU_MIPS32_3_5_FEATURES
1740 bool "MIPS32 Release 3.5 Features"
1741 depends on SYS_HAS_CPU_MIPS32_R3_5
1742 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1743 help
1744 Choose this option to build a kernel for release 2 or later of the
1745 MIPS32 architecture including features from the 3.5 release such as
1746 support for Enhanced Virtual Addressing (EVA).
1747
1748config CPU_MIPS32_3_5_EVA
1749 bool "Enhanced Virtual Addressing (EVA)"
1750 depends on CPU_MIPS32_3_5_FEATURES
1751 select EVA
1752 default y
1753 help
1754 Choose this option if you want to enable the Enhanced Virtual
1755 Addressing (EVA) on your MIPS32 core (such as proAptiv).
1756 One of its primary benefits is an increase in the maximum size
1757 of lowmem (up to 3GB). If unsure, say 'N' here.
1758
1759config CPU_MIPS32_R5_FEATURES
1760 bool "MIPS32 Release 5 Features"
1761 depends on SYS_HAS_CPU_MIPS32_R5
1762 depends on CPU_MIPS32_R2
1763 help
1764 Choose this option to build a kernel for release 2 or later of the
1765 MIPS32 architecture including features from release 5 such as
1766 support for Extended Physical Addressing (XPA).
1767
1768config CPU_MIPS32_R5_XPA
1769 bool "Extended Physical Addressing (XPA)"
1770 depends on CPU_MIPS32_R5_FEATURES
1771 depends on !EVA
1772 depends on !PAGE_SIZE_4KB
1773 depends on SYS_SUPPORTS_HIGHMEM
1774 select XPA
1775 select HIGHMEM
1776 select ARCH_PHYS_ADDR_T_64BIT
1777 default n
1778 help
1779 Choose this option if you want to enable the Extended Physical
1780 Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1781 benefit is to increase physical addressing equal to or greater
1782 than 40 bits. Note that this has the side effect of turning on
1783 64-bit addressing which in turn makes the PTEs 64-bit in size.
1784 If unsure, say 'N' here.
1785
1786if CPU_LOONGSON2F
1787config CPU_NOP_WORKAROUNDS
1788 bool
1789
1790config CPU_JUMP_WORKAROUNDS
1791 bool
1792
1793config CPU_LOONGSON2F_WORKAROUNDS
1794 bool "Loongson 2F Workarounds"
1795 default y
1796 select CPU_NOP_WORKAROUNDS
1797 select CPU_JUMP_WORKAROUNDS
1798 help
1799 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1800 require workarounds. Without workarounds the system may hang
1801 unexpectedly. For more information please refer to the gas
1802 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1803
1804 Loongson 2F03 and later have fixed these issues and no workarounds
1805 are needed. The workarounds have no significant side effect on them
1806 but may decrease the performance of the system so this option should
1807 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1808 systems.
1809
1810 If unsure, please say Y.
1811endif # CPU_LOONGSON2F
1812
1813config SYS_SUPPORTS_ZBOOT
1814 bool
1815 select HAVE_KERNEL_GZIP
1816 select HAVE_KERNEL_BZIP2
1817 select HAVE_KERNEL_LZ4
1818 select HAVE_KERNEL_LZMA
1819 select HAVE_KERNEL_LZO
1820 select HAVE_KERNEL_XZ
1821
1822config SYS_SUPPORTS_ZBOOT_UART16550
1823 bool
1824 select SYS_SUPPORTS_ZBOOT
1825
1826config SYS_SUPPORTS_ZBOOT_UART_PROM
1827 bool
1828 select SYS_SUPPORTS_ZBOOT
1829
1830config CPU_LOONGSON2
1831 bool
1832 select CPU_SUPPORTS_32BIT_KERNEL
1833 select CPU_SUPPORTS_64BIT_KERNEL
1834 select CPU_SUPPORTS_HIGHMEM
1835 select CPU_SUPPORTS_HUGEPAGES
1836
1837config CPU_LOONGSON1
1838 bool
1839 select CPU_MIPS32
1840 select CPU_MIPSR2
1841 select CPU_HAS_PREFETCH
1842 select CPU_SUPPORTS_32BIT_KERNEL
1843 select CPU_SUPPORTS_HIGHMEM
1844 select CPU_SUPPORTS_CPUFREQ
1845
1846config CPU_BMIPS32_3300
1847 select SMP_UP if SMP
1848 bool
1849
1850config CPU_BMIPS4350
1851 bool
1852 select SYS_SUPPORTS_SMP
1853 select SYS_SUPPORTS_HOTPLUG_CPU
1854
1855config CPU_BMIPS4380
1856 bool
1857 select MIPS_L1_CACHE_SHIFT_6
1858 select SYS_SUPPORTS_SMP
1859 select SYS_SUPPORTS_HOTPLUG_CPU
1860 select CPU_HAS_RIXI
1861
1862config CPU_BMIPS5000
1863 bool
1864 select MIPS_CPU_SCACHE
1865 select MIPS_L1_CACHE_SHIFT_7
1866 select SYS_SUPPORTS_SMP
1867 select SYS_SUPPORTS_HOTPLUG_CPU
1868 select CPU_HAS_RIXI
1869
1870config SYS_HAS_CPU_LOONGSON3
1871 bool
1872 select CPU_SUPPORTS_CPUFREQ
1873 select CPU_HAS_RIXI
1874
1875config SYS_HAS_CPU_LOONGSON2E
1876 bool
1877
1878config SYS_HAS_CPU_LOONGSON2F
1879 bool
1880 select CPU_SUPPORTS_CPUFREQ
1881 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1882 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1883
1884config SYS_HAS_CPU_LOONGSON1B
1885 bool
1886
1887config SYS_HAS_CPU_LOONGSON1C
1888 bool
1889
1890config SYS_HAS_CPU_MIPS32_R1
1891 bool
1892
1893config SYS_HAS_CPU_MIPS32_R2
1894 bool
1895
1896config SYS_HAS_CPU_MIPS32_R3_5
1897 bool
1898
1899config SYS_HAS_CPU_MIPS32_R5
1900 bool
1901
1902config SYS_HAS_CPU_MIPS32_R6
1903 bool
1904
1905config SYS_HAS_CPU_MIPS64_R1
1906 bool
1907
1908config SYS_HAS_CPU_MIPS64_R2
1909 bool
1910
1911config SYS_HAS_CPU_MIPS64_R6
1912 bool
1913
1914config SYS_HAS_CPU_R3000
1915 bool
1916
1917config SYS_HAS_CPU_TX39XX
1918 bool
1919
1920config SYS_HAS_CPU_VR41XX
1921 bool
1922
1923config SYS_HAS_CPU_R4300
1924 bool
1925
1926config SYS_HAS_CPU_R4X00
1927 bool
1928
1929config SYS_HAS_CPU_TX49XX
1930 bool
1931
1932config SYS_HAS_CPU_R5000
1933 bool
1934
1935config SYS_HAS_CPU_R5432
1936 bool
1937
1938config SYS_HAS_CPU_R5500
1939 bool
1940
1941config SYS_HAS_CPU_R6000
1942 bool
1943
1944config SYS_HAS_CPU_NEVADA
1945 bool
1946
1947config SYS_HAS_CPU_R8000
1948 bool
1949
1950config SYS_HAS_CPU_R10000
1951 bool
1952
1953config SYS_HAS_CPU_RM7000
1954 bool
1955
1956config SYS_HAS_CPU_SB1
1957 bool
1958
1959config SYS_HAS_CPU_CAVIUM_OCTEON
1960 bool
1961
1962config SYS_HAS_CPU_BMIPS
1963 bool
1964
1965config SYS_HAS_CPU_BMIPS32_3300
1966 bool
1967 select SYS_HAS_CPU_BMIPS
1968
1969config SYS_HAS_CPU_BMIPS4350
1970 bool
1971 select SYS_HAS_CPU_BMIPS
1972
1973config SYS_HAS_CPU_BMIPS4380
1974 bool
1975 select SYS_HAS_CPU_BMIPS
1976
1977config SYS_HAS_CPU_BMIPS5000
1978 bool
1979 select SYS_HAS_CPU_BMIPS
1980
1981config SYS_HAS_CPU_XLR
1982 bool
1983
1984config SYS_HAS_CPU_XLP
1985 bool
1986
1987config MIPS_MALTA_PM
1988 depends on MIPS_MALTA
1989 depends on PCI
1990 bool
1991 default y
1992
1993#
1994# CPU may reorder R->R, R->W, W->R, W->W
1995# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1996#
1997config WEAK_ORDERING
1998 bool
1999
2000#
2001# CPU may reorder reads and writes beyond LL/SC
2002# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
2003#
2004config WEAK_REORDERING_BEYOND_LLSC
2005 bool
2006endmenu
2007
2008#
2009# These two indicate any level of the MIPS32 and MIPS64 architecture
2010#
2011config CPU_MIPS32
2012 bool
2013 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
2014
2015config CPU_MIPS64
2016 bool
2017 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
2018
2019#
2020# These two indicate the revision of the architecture, either Release 1 or Release 2
2021#
2022config CPU_MIPSR1
2023 bool
2024 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
2025
2026config CPU_MIPSR2
2027 bool
2028 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2029 select CPU_HAS_RIXI
2030 select MIPS_SPRAM
2031
2032config CPU_MIPSR6
2033 bool
2034 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2035 select CPU_HAS_RIXI
2036 select HAVE_ARCH_BITREVERSE
2037 select MIPS_ASID_BITS_VARIABLE
2038 select MIPS_SPRAM
2039
2040config EVA
2041 bool
2042
2043config XPA
2044 bool
2045
2046config SYS_SUPPORTS_32BIT_KERNEL
2047 bool
2048config SYS_SUPPORTS_64BIT_KERNEL
2049 bool
2050config CPU_SUPPORTS_32BIT_KERNEL
2051 bool
2052config CPU_SUPPORTS_64BIT_KERNEL
2053 bool
2054config CPU_SUPPORTS_CPUFREQ
2055 bool
2056config CPU_SUPPORTS_ADDRWINCFG
2057 bool
2058config CPU_SUPPORTS_HUGEPAGES
2059 bool
2060config CPU_SUPPORTS_UNCACHED_ACCELERATED
2061 bool
2062config MIPS_PGD_C0_CONTEXT
2063 bool
2064 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
2065
2066#
2067# Set to y for ptrace access to watch registers.
2068#
2069config HARDWARE_WATCHPOINTS
2070 bool
2071 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2072
2073menu "Kernel type"
2074
2075choice
2076 prompt "Kernel code model"
2077 help
2078 You should only select this option if you have a workload that
2079 actually benefits from 64-bit processing or if your machine has
2080 large memory. You will only be presented a single option in this
2081 menu if your system does not support both 32-bit and 64-bit kernels.
2082
2083config 32BIT
2084 bool "32-bit kernel"
2085 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2086 select TRAD_SIGNALS
2087 help
2088 Select this option if you want to build a 32-bit kernel.
2089
2090config 64BIT
2091 bool "64-bit kernel"
2092 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2093 help
2094 Select this option if you want to build a 64-bit kernel.
2095
2096endchoice
2097
2098config KVM_GUEST
2099 bool "KVM Guest Kernel"
2100 depends on BROKEN_ON_SMP
2101 help
2102 Select this option if building a guest kernel for KVM (Trap & Emulate)
2103 mode.
2104
2105config KVM_GUEST_TIMER_FREQ
2106 int "Count/Compare Timer Frequency (MHz)"
2107 depends on KVM_GUEST
2108 default 100
2109 help
2110 Set this to non-zero if building a guest kernel for KVM to skip RTC
2111 emulation when determining guest CPU Frequency. Instead, the guest's
2112 timer frequency is specified directly.
2113
2114config MIPS_VA_BITS_48
2115 bool "48 bits virtual memory"
2116 depends on 64BIT
2117 help
2118 Support a maximum at least 48 bits of application virtual
2119 memory. Default is 40 bits or less, depending on the CPU.
2120 For page sizes 16k and above, this option results in a small
2121 memory overhead for page tables. For 4k page size, a fourth
2122 level of page tables is added which imposes both a memory
2123 overhead as well as slower TLB fault handling.
2124
2125 If unsure, say N.
2126
2127choice
2128 prompt "Kernel page size"
2129 default PAGE_SIZE_4KB
2130
2131config PAGE_SIZE_4KB
2132 bool "4kB"
2133 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
2134 help
2135 This option select the standard 4kB Linux page size. On some
2136 R3000-family processors this is the only available page size. Using
2137 4kB page size will minimize memory consumption and is therefore
2138 recommended for low memory systems.
2139
2140config PAGE_SIZE_8KB
2141 bool "8kB"
2142 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
2143 depends on !MIPS_VA_BITS_48
2144 help
2145 Using 8kB page size will result in higher performance kernel at
2146 the price of higher memory consumption. This option is available
2147 only on R8000 and cnMIPS processors. Note that you will need a
2148 suitable Linux distribution to support this.
2149
2150config PAGE_SIZE_16KB
2151 bool "16kB"
2152 depends on !CPU_R3000 && !CPU_TX39XX
2153 help
2154 Using 16kB page size will result in higher performance kernel at
2155 the price of higher memory consumption. This option is available on
2156 all non-R3000 family processors. Note that you will need a suitable
2157 Linux distribution to support this.
2158
2159config PAGE_SIZE_32KB
2160 bool "32kB"
2161 depends on CPU_CAVIUM_OCTEON
2162 depends on !MIPS_VA_BITS_48
2163 help
2164 Using 32kB page size will result in higher performance kernel at
2165 the price of higher memory consumption. This option is available
2166 only on cnMIPS cores. Note that you will need a suitable Linux
2167 distribution to support this.
2168
2169config PAGE_SIZE_64KB
2170 bool "64kB"
2171 depends on !CPU_R3000 && !CPU_TX39XX && !CPU_R6000
2172 help
2173 Using 64kB page size will result in higher performance kernel at
2174 the price of higher memory consumption. This option is available on
2175 all non-R3000 family processor. Not that at the time of this
2176 writing this option is still high experimental.
2177
2178endchoice
2179
2180config FORCE_MAX_ZONEORDER
2181 int "Maximum zone order"
2182 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2183 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2184 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2185 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2186 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2187 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2188 range 11 64
2189 default "11"
2190 help
2191 The kernel memory allocator divides physically contiguous memory
2192 blocks into "zones", where each zone is a power of two number of
2193 pages. This option selects the largest power of two that the kernel
2194 keeps in the memory allocator. If you need to allocate very large
2195 blocks of physically contiguous memory, then you may need to
2196 increase this value.
2197
2198 This config option is actually maximum order plus one. For example,
2199 a value of 11 means that the largest free memory block is 2^10 pages.
2200
2201 The page size is not necessarily 4KB. Keep this in mind
2202 when choosing a value for this option.
2203
2204config BOARD_SCACHE
2205 bool
2206
2207config IP22_CPU_SCACHE
2208 bool
2209 select BOARD_SCACHE
2210
2211#
2212# Support for a MIPS32 / MIPS64 style S-caches
2213#
2214config MIPS_CPU_SCACHE
2215 bool
2216 select BOARD_SCACHE
2217
2218config R5000_CPU_SCACHE
2219 bool
2220 select BOARD_SCACHE
2221
2222config RM7000_CPU_SCACHE
2223 bool
2224 select BOARD_SCACHE
2225
2226config SIBYTE_DMA_PAGEOPS
2227 bool "Use DMA to clear/copy pages"
2228 depends on CPU_SB1
2229 help
2230 Instead of using the CPU to zero and copy pages, use a Data Mover
2231 channel. These DMA channels are otherwise unused by the standard
2232 SiByte Linux port. Seems to give a small performance benefit.
2233
2234config CPU_HAS_PREFETCH
2235 bool
2236
2237config CPU_GENERIC_DUMP_TLB
2238 bool
2239 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
2240
2241config CPU_R4K_FPU
2242 bool
2243 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2244
2245config CPU_R4K_CACHE_TLB
2246 bool
2247 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2248
2249config MIPS_MT_SMP
2250 bool "MIPS MT SMP support (1 TC on each available VPE)"
2251 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6
2252 select CPU_MIPSR2_IRQ_VI
2253 select CPU_MIPSR2_IRQ_EI
2254 select SYNC_R4K
2255 select MIPS_MT
2256 select SMP
2257 select SMP_UP
2258 select SYS_SUPPORTS_SMP
2259 select SYS_SUPPORTS_SCHED_SMT
2260 select MIPS_PERF_SHARED_TC_COUNTERS
2261 help
2262 This is a kernel model which is known as SMVP. This is supported
2263 on cores with the MT ASE and uses the available VPEs to implement
2264 virtual processors which supports SMP. This is equivalent to the
2265 Intel Hyperthreading feature. For further information go to
2266 <http://www.imgtec.com/mips/mips-multithreading.asp>.
2267
2268config MIPS_MT
2269 bool
2270
2271config SCHED_SMT
2272 bool "SMT (multithreading) scheduler support"
2273 depends on SYS_SUPPORTS_SCHED_SMT
2274 default n
2275 help
2276 SMT scheduler support improves the CPU scheduler's decision making
2277 when dealing with MIPS MT enabled cores at a cost of slightly
2278 increased overhead in some places. If unsure say N here.
2279
2280config SYS_SUPPORTS_SCHED_SMT
2281 bool
2282
2283config SYS_SUPPORTS_MULTITHREADING
2284 bool
2285
2286config MIPS_MT_FPAFF
2287 bool "Dynamic FPU affinity for FP-intensive threads"
2288 default y
2289 depends on MIPS_MT_SMP
2290
2291config MIPSR2_TO_R6_EMULATOR
2292 bool "MIPS R2-to-R6 emulator"
2293 depends on CPU_MIPSR6
2294 default y
2295 help
2296 Choose this option if you want to run non-R6 MIPS userland code.
2297 Even if you say 'Y' here, the emulator will still be disabled by
2298 default. You can enable it using the 'mipsr2emu' kernel option.
2299 The only reason this is a build-time option is to save ~14K from the
2300 final kernel image.
2301
2302config MIPS_VPE_LOADER
2303 bool "VPE loader support."
2304 depends on SYS_SUPPORTS_MULTITHREADING && MODULES
2305 select CPU_MIPSR2_IRQ_VI
2306 select CPU_MIPSR2_IRQ_EI
2307 select MIPS_MT
2308 help
2309 Includes a loader for loading an elf relocatable object
2310 onto another VPE and running it.
2311
2312config MIPS_VPE_LOADER_CMP
2313 bool
2314 default "y"
2315 depends on MIPS_VPE_LOADER && MIPS_CMP
2316
2317config MIPS_VPE_LOADER_MT
2318 bool
2319 default "y"
2320 depends on MIPS_VPE_LOADER && !MIPS_CMP
2321
2322config MIPS_VPE_LOADER_TOM
2323 bool "Load VPE program into memory hidden from linux"
2324 depends on MIPS_VPE_LOADER
2325 default y
2326 help
2327 The loader can use memory that is present but has been hidden from
2328 Linux using the kernel command line option "mem=xxMB". It's up to
2329 you to ensure the amount you put in the option and the space your
2330 program requires is less or equal to the amount physically present.
2331
2332config MIPS_VPE_APSP_API
2333 bool "Enable support for AP/SP API (RTLX)"
2334 depends on MIPS_VPE_LOADER
2335 help
2336
2337config MIPS_VPE_APSP_API_CMP
2338 bool
2339 default "y"
2340 depends on MIPS_VPE_APSP_API && MIPS_CMP
2341
2342config MIPS_VPE_APSP_API_MT
2343 bool
2344 default "y"
2345 depends on MIPS_VPE_APSP_API && !MIPS_CMP
2346
2347config MIPS_CMP
2348 bool "MIPS CMP framework support (DEPRECATED)"
2349 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2350 select SMP
2351 select SYNC_R4K
2352 select SYS_SUPPORTS_SMP
2353 select WEAK_ORDERING
2354 default n
2355 help
2356 Select this if you are using a bootloader which implements the "CMP
2357 framework" protocol (ie. YAMON) and want your kernel to make use of
2358 its ability to start secondary CPUs.
2359
2360 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2361 instead of this.
2362
2363config MIPS_CPS
2364 bool "MIPS Coherent Processing System support"
2365 depends on SYS_SUPPORTS_MIPS_CPS
2366 select MIPS_CM
2367 select MIPS_CPC
2368 select MIPS_CPS_PM if HOTPLUG_CPU
2369 select SMP
2370 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2371 select SYS_SUPPORTS_HOTPLUG_CPU
2372 select SYS_SUPPORTS_SMP
2373 select WEAK_ORDERING
2374 help
2375 Select this if you wish to run an SMP kernel across multiple cores
2376 within a MIPS Coherent Processing System. When this option is
2377 enabled the kernel will probe for other cores and boot them with
2378 no external assistance. It is safe to enable this when hardware
2379 support is unavailable.
2380
2381config MIPS_CPS_PM
2382 depends on MIPS_CPS
2383 select MIPS_CPC
2384 bool
2385
2386config MIPS_CM
2387 bool
2388
2389config MIPS_CPC
2390 bool
2391
2392config SB1_PASS_2_WORKAROUNDS
2393 bool
2394 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2395 default y
2396
2397config SB1_PASS_2_1_WORKAROUNDS
2398 bool
2399 depends on CPU_SB1 && CPU_SB1_PASS_2
2400 default y
2401
2402
2403config ARCH_PHYS_ADDR_T_64BIT
2404 bool
2405
2406choice
2407 prompt "SmartMIPS or microMIPS ASE support"
2408
2409config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2410 bool "None"
2411 help
2412 Select this if you want neither microMIPS nor SmartMIPS support
2413
2414config CPU_HAS_SMARTMIPS
2415 depends on SYS_SUPPORTS_SMARTMIPS
2416 bool "SmartMIPS"
2417 help
2418 SmartMIPS is a extension of the MIPS32 architecture aimed at
2419 increased security at both hardware and software level for
2420 smartcards. Enabling this option will allow proper use of the
2421 SmartMIPS instructions by Linux applications. However a kernel with
2422 this option will not work on a MIPS core without SmartMIPS core. If
2423 you don't know you probably don't have SmartMIPS and should say N
2424 here.
2425
2426config CPU_MICROMIPS
2427 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2428 bool "microMIPS"
2429 help
2430 When this option is enabled the kernel will be built using the
2431 microMIPS ISA
2432
2433endchoice
2434
2435config CPU_HAS_MSA
2436 bool "Support for the MIPS SIMD Architecture"
2437 depends on CPU_SUPPORTS_MSA
2438 depends on 64BIT || MIPS_O32_FP64_SUPPORT
2439 help
2440 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2441 and a set of SIMD instructions to operate on them. When this option
2442 is enabled the kernel will support allocating & switching MSA
2443 vector register contexts. If you know that your kernel will only be
2444 running on CPUs which do not support MSA or that your userland will
2445 not be making use of it then you may wish to say N here to reduce
2446 the size & complexity of your kernel.
2447
2448 If unsure, say Y.
2449
2450config CPU_HAS_WB
2451 bool
2452
2453config XKS01
2454 bool
2455
2456config CPU_HAS_RIXI
2457 bool
2458
2459#
2460# Vectored interrupt mode is an R2 feature
2461#
2462config CPU_MIPSR2_IRQ_VI
2463 bool
2464
2465#
2466# Extended interrupt mode is an R2 feature
2467#
2468config CPU_MIPSR2_IRQ_EI
2469 bool
2470
2471config CPU_HAS_SYNC
2472 bool
2473 depends on !CPU_R3000
2474 default y
2475
2476#
2477# CPU non-features
2478#
2479config CPU_DADDI_WORKAROUNDS
2480 bool
2481
2482config CPU_R4000_WORKAROUNDS
2483 bool
2484 select CPU_R4400_WORKAROUNDS
2485
2486config CPU_R4400_WORKAROUNDS
2487 bool
2488
2489config MIPS_ASID_SHIFT
2490 int
2491 default 6 if CPU_R3000 || CPU_TX39XX
2492 default 4 if CPU_R8000
2493 default 0
2494
2495config MIPS_ASID_BITS
2496 int
2497 default 0 if MIPS_ASID_BITS_VARIABLE
2498 default 6 if CPU_R3000 || CPU_TX39XX
2499 default 8
2500
2501config MIPS_ASID_BITS_VARIABLE
2502 bool
2503
2504#
2505# - Highmem only makes sense for the 32-bit kernel.
2506# - The current highmem code will only work properly on physically indexed
2507# caches such as R3000, SB1, R7000 or those that look like they're virtually
2508# indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2509# moment we protect the user and offer the highmem option only on machines
2510# where it's known to be safe. This will not offer highmem on a few systems
2511# such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2512# indexed CPUs but we're playing safe.
2513# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2514# know they might have memory configurations that could make use of highmem
2515# support.
2516#
2517config HIGHMEM
2518 bool "High Memory Support"
2519 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2520
2521config CPU_SUPPORTS_HIGHMEM
2522 bool
2523
2524config SYS_SUPPORTS_HIGHMEM
2525 bool
2526
2527config SYS_SUPPORTS_SMARTMIPS
2528 bool
2529
2530config SYS_SUPPORTS_MICROMIPS
2531 bool
2532
2533config SYS_SUPPORTS_MIPS16
2534 bool
2535 help
2536 This option must be set if a kernel might be executed on a MIPS16-
2537 enabled CPU even if MIPS16 is not actually being used. In other
2538 words, it makes the kernel MIPS16-tolerant.
2539
2540config CPU_SUPPORTS_MSA
2541 bool
2542
2543config ARCH_FLATMEM_ENABLE
2544 def_bool y
2545 depends on !NUMA && !CPU_LOONGSON2
2546
2547config ARCH_DISCONTIGMEM_ENABLE
2548 bool
2549 default y if SGI_IP27
2550 help
2551 Say Y to support efficient handling of discontiguous physical memory,
2552 for architectures which are either NUMA (Non-Uniform Memory Access)
2553 or have huge holes in the physical address space for other reasons.
2554 See <file:Documentation/vm/numa> for more.
2555
2556config ARCH_SPARSEMEM_ENABLE
2557 bool
2558 select SPARSEMEM_STATIC
2559
2560config NUMA
2561 bool "NUMA Support"
2562 depends on SYS_SUPPORTS_NUMA
2563 help
2564 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2565 Access). This option improves performance on systems with more
2566 than two nodes; on two node systems it is generally better to
2567 leave it disabled; on single node systems disable this option
2568 disabled.
2569
2570config SYS_SUPPORTS_NUMA
2571 bool
2572
2573config RELOCATABLE
2574 bool "Relocatable kernel"
2575 depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC)
2576 help
2577 This builds a kernel image that retains relocation information
2578 so it can be loaded someplace besides the default 1MB.
2579 The relocations make the kernel binary about 15% larger,
2580 but are discarded at runtime
2581
2582config RELOCATION_TABLE_SIZE
2583 hex "Relocation table size"
2584 depends on RELOCATABLE
2585 range 0x0 0x01000000
2586 default "0x00100000"
2587 ---help---
2588 A table of relocation data will be appended to the kernel binary
2589 and parsed at boot to fix up the relocated kernel.
2590
2591 This option allows the amount of space reserved for the table to be
2592 adjusted, although the default of 1Mb should be ok in most cases.
2593
2594 The build will fail and a valid size suggested if this is too small.
2595
2596 If unsure, leave at the default value.
2597
2598config RANDOMIZE_BASE
2599 bool "Randomize the address of the kernel image"
2600 depends on RELOCATABLE
2601 ---help---
2602 Randomizes the physical and virtual address at which the
2603 kernel image is loaded, as a security feature that
2604 deters exploit attempts relying on knowledge of the location
2605 of kernel internals.
2606
2607 Entropy is generated using any coprocessor 0 registers available.
2608
2609 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2610
2611 If unsure, say N.
2612
2613config RANDOMIZE_BASE_MAX_OFFSET
2614 hex "Maximum kASLR offset" if EXPERT
2615 depends on RANDOMIZE_BASE
2616 range 0x0 0x40000000 if EVA || 64BIT
2617 range 0x0 0x08000000
2618 default "0x01000000"
2619 ---help---
2620 When kASLR is active, this provides the maximum offset that will
2621 be applied to the kernel image. It should be set according to the
2622 amount of physical RAM available in the target system minus
2623 PHYSICAL_START and must be a power of 2.
2624
2625 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2626 EVA or 64-bit. The default is 16Mb.
2627
2628config NODES_SHIFT
2629 int
2630 default "6"
2631 depends on NEED_MULTIPLE_NODES
2632
2633config HW_PERF_EVENTS
2634 bool "Enable hardware performance counter support for perf events"
2635 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2636 default y
2637 help
2638 Enable hardware performance counter support for perf events. If
2639 disabled, perf events will use software events only.
2640
2641source "mm/Kconfig"
2642
2643config SMP
2644 bool "Multi-Processing support"
2645 depends on SYS_SUPPORTS_SMP
2646 help
2647 This enables support for systems with more than one CPU. If you have
2648 a system with only one CPU, say N. If you have a system with more
2649 than one CPU, say Y.
2650
2651 If you say N here, the kernel will run on uni- and multiprocessor
2652 machines, but will use only one CPU of a multiprocessor machine. If
2653 you say Y here, the kernel will run on many, but not all,
2654 uniprocessor machines. On a uniprocessor machine, the kernel
2655 will run faster if you say N here.
2656
2657 People using multiprocessor machines who say Y here should also say
2658 Y to "Enhanced Real Time Clock Support", below.
2659
2660 See also the SMP-HOWTO available at
2661 <http://www.tldp.org/docs.html#howto>.
2662
2663 If you don't know what to do here, say N.
2664
2665config HOTPLUG_CPU
2666 bool "Support for hot-pluggable CPUs"
2667 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2668 help
2669 Say Y here to allow turning CPUs off and on. CPUs can be
2670 controlled through /sys/devices/system/cpu.
2671 (Note: power management support will enable this option
2672 automatically on SMP systems. )
2673 Say N if you want to disable CPU hotplug.
2674
2675config SMP_UP
2676 bool
2677
2678config SYS_SUPPORTS_MIPS_CMP
2679 bool
2680
2681config SYS_SUPPORTS_MIPS_CPS
2682 bool
2683
2684config SYS_SUPPORTS_SMP
2685 bool
2686
2687config NR_CPUS_DEFAULT_4
2688 bool
2689
2690config NR_CPUS_DEFAULT_8
2691 bool
2692
2693config NR_CPUS_DEFAULT_16
2694 bool
2695
2696config NR_CPUS_DEFAULT_32
2697 bool
2698
2699config NR_CPUS_DEFAULT_64
2700 bool
2701
2702config NR_CPUS
2703 int "Maximum number of CPUs (2-256)"
2704 range 2 256
2705 depends on SMP
2706 default "4" if NR_CPUS_DEFAULT_4
2707 default "8" if NR_CPUS_DEFAULT_8
2708 default "16" if NR_CPUS_DEFAULT_16
2709 default "32" if NR_CPUS_DEFAULT_32
2710 default "64" if NR_CPUS_DEFAULT_64
2711 help
2712 This allows you to specify the maximum number of CPUs which this
2713 kernel will support. The maximum supported value is 32 for 32-bit
2714 kernel and 64 for 64-bit kernels; the minimum value which makes
2715 sense is 1 for Qemu (useful only for kernel debugging purposes)
2716 and 2 for all others.
2717
2718 This is purely to save memory - each supported CPU adds
2719 approximately eight kilobytes to the kernel image. For best
2720 performance should round up your number of processors to the next
2721 power of two.
2722
2723config MIPS_PERF_SHARED_TC_COUNTERS
2724 bool
2725
2726#
2727# Timer Interrupt Frequency Configuration
2728#
2729
2730choice
2731 prompt "Timer frequency"
2732 default HZ_250
2733 help
2734 Allows the configuration of the timer frequency.
2735
2736 config HZ_24
2737 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2738
2739 config HZ_48
2740 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2741
2742 config HZ_100
2743 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2744
2745 config HZ_128
2746 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2747
2748 config HZ_250
2749 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2750
2751 config HZ_256
2752 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2753
2754 config HZ_1000
2755 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2756
2757 config HZ_1024
2758 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2759
2760endchoice
2761
2762config SYS_SUPPORTS_24HZ
2763 bool
2764
2765config SYS_SUPPORTS_48HZ
2766 bool
2767
2768config SYS_SUPPORTS_100HZ
2769 bool
2770
2771config SYS_SUPPORTS_128HZ
2772 bool
2773
2774config SYS_SUPPORTS_250HZ
2775 bool
2776
2777config SYS_SUPPORTS_256HZ
2778 bool
2779
2780config SYS_SUPPORTS_1000HZ
2781 bool
2782
2783config SYS_SUPPORTS_1024HZ
2784 bool
2785
2786config SYS_SUPPORTS_ARBIT_HZ
2787 bool
2788 default y if !SYS_SUPPORTS_24HZ && \
2789 !SYS_SUPPORTS_48HZ && \
2790 !SYS_SUPPORTS_100HZ && \
2791 !SYS_SUPPORTS_128HZ && \
2792 !SYS_SUPPORTS_250HZ && \
2793 !SYS_SUPPORTS_256HZ && \
2794 !SYS_SUPPORTS_1000HZ && \
2795 !SYS_SUPPORTS_1024HZ
2796
2797config HZ
2798 int
2799 default 24 if HZ_24
2800 default 48 if HZ_48
2801 default 100 if HZ_100
2802 default 128 if HZ_128
2803 default 250 if HZ_250
2804 default 256 if HZ_256
2805 default 1000 if HZ_1000
2806 default 1024 if HZ_1024
2807
2808config SCHED_HRTICK
2809 def_bool HIGH_RES_TIMERS
2810
2811source "kernel/Kconfig.preempt"
2812
2813config KEXEC
2814 bool "Kexec system call"
2815 select KEXEC_CORE
2816 help
2817 kexec is a system call that implements the ability to shutdown your
2818 current kernel, and to start another kernel. It is like a reboot
2819 but it is independent of the system firmware. And like a reboot
2820 you can start any kernel with it, not just Linux.
2821
2822 The name comes from the similarity to the exec system call.
2823
2824 It is an ongoing process to be certain the hardware in a machine
2825 is properly shutdown, so do not be surprised if this code does not
2826 initially work for you. As of this writing the exact hardware
2827 interface is strongly in flux, so no good recommendation can be
2828 made.
2829
2830config CRASH_DUMP
2831 bool "Kernel crash dumps"
2832 help
2833 Generate crash dump after being started by kexec.
2834 This should be normally only set in special crash dump kernels
2835 which are loaded in the main kernel with kexec-tools into
2836 a specially reserved region and then later executed after
2837 a crash by kdump/kexec. The crash dump kernel must be compiled
2838 to a memory address not used by the main kernel or firmware using
2839 PHYSICAL_START.
2840
2841config PHYSICAL_START
2842 hex "Physical address where the kernel is loaded"
2843 default "0xffffffff84000000" if 64BIT
2844 default "0x84000000" if 32BIT
2845 depends on CRASH_DUMP
2846 help
2847 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2848 If you plan to use kernel for capturing the crash dump change
2849 this value to start of the reserved region (the "X" value as
2850 specified in the "crashkernel=YM@XM" command line boot parameter
2851 passed to the panic-ed kernel).
2852
2853config SECCOMP
2854 bool "Enable seccomp to safely compute untrusted bytecode"
2855 depends on PROC_FS
2856 default y
2857 help
2858 This kernel feature is useful for number crunching applications
2859 that may need to compute untrusted bytecode during their
2860 execution. By using pipes or other transports made available to
2861 the process as file descriptors supporting the read/write
2862 syscalls, it's possible to isolate those applications in
2863 their own address space using seccomp. Once seccomp is
2864 enabled via /proc/<pid>/seccomp, it cannot be disabled
2865 and the task is only allowed to execute a few safe syscalls
2866 defined by each seccomp mode.
2867
2868 If unsure, say Y. Only embedded should say N here.
2869
2870config MIPS_O32_FP64_SUPPORT
2871 bool "Support for O32 binaries using 64-bit FP"
2872 depends on 32BIT || MIPS32_O32
2873 help
2874 When this is enabled, the kernel will support use of 64-bit floating
2875 point registers with binaries using the O32 ABI along with the
2876 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2877 32-bit MIPS systems this support is at the cost of increasing the
2878 size and complexity of the compiled FPU emulator. Thus if you are
2879 running a MIPS32 system and know that none of your userland binaries
2880 will require 64-bit floating point, you may wish to reduce the size
2881 of your kernel & potentially improve FP emulation performance by
2882 saying N here.
2883
2884 Although binutils currently supports use of this flag the details
2885 concerning its effect upon the O32 ABI in userland are still being
2886 worked on. In order to avoid userland becoming dependant upon current
2887 behaviour before the details have been finalised, this option should
2888 be considered experimental and only enabled by those working upon
2889 said details.
2890
2891 If unsure, say N.
2892
2893config USE_OF
2894 bool
2895 select OF
2896 select OF_EARLY_FLATTREE
2897 select IRQ_DOMAIN
2898
2899config BUILTIN_DTB
2900 bool
2901
2902choice
2903 prompt "Kernel appended dtb support" if USE_OF
2904 default MIPS_NO_APPENDED_DTB
2905
2906 config MIPS_NO_APPENDED_DTB
2907 bool "None"
2908 help
2909 Do not enable appended dtb support.
2910
2911 config MIPS_ELF_APPENDED_DTB
2912 bool "vmlinux"
2913 help
2914 With this option, the boot code will look for a device tree binary
2915 DTB) included in the vmlinux ELF section .appended_dtb. By default
2916 it is empty and the DTB can be appended using binutils command
2917 objcopy:
2918
2919 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
2920
2921 This is meant as a backward compatiblity convenience for those
2922 systems with a bootloader that can't be upgraded to accommodate
2923 the documented boot protocol using a device tree.
2924
2925 config MIPS_RAW_APPENDED_DTB
2926 bool "vmlinux.bin or vmlinuz.bin"
2927 help
2928 With this option, the boot code will look for a device tree binary
2929 DTB) appended to raw vmlinux.bin or vmlinuz.bin.
2930 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
2931
2932 This is meant as a backward compatibility convenience for those
2933 systems with a bootloader that can't be upgraded to accommodate
2934 the documented boot protocol using a device tree.
2935
2936 Beware that there is very little in terms of protection against
2937 this option being confused by leftover garbage in memory that might
2938 look like a DTB header after a reboot if no actual DTB is appended
2939 to vmlinux.bin. Do not leave this option active in a production kernel
2940 if you don't intend to always append a DTB.
2941endchoice
2942
2943choice
2944 prompt "Kernel command line type" if !CMDLINE_OVERRIDE
2945 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
2946 !MIPS_MALTA && \
2947 !CAVIUM_OCTEON_SOC
2948 default MIPS_CMDLINE_FROM_BOOTLOADER
2949
2950 config MIPS_CMDLINE_FROM_DTB
2951 depends on USE_OF
2952 bool "Dtb kernel arguments if available"
2953
2954 config MIPS_CMDLINE_DTB_EXTEND
2955 depends on USE_OF
2956 bool "Extend dtb kernel arguments with bootloader arguments"
2957
2958 config MIPS_CMDLINE_FROM_BOOTLOADER
2959 bool "Bootloader kernel arguments if available"
2960
2961 config MIPS_CMDLINE_BUILTIN_EXTEND
2962 depends on CMDLINE_BOOL
2963 bool "Extend builtin kernel arguments with bootloader arguments"
2964endchoice
2965
2966endmenu
2967
2968config LOCKDEP_SUPPORT
2969 bool
2970 default y
2971
2972config STACKTRACE_SUPPORT
2973 bool
2974 default y
2975
2976config HAVE_LATENCYTOP_SUPPORT
2977 bool
2978 default y
2979
2980config PGTABLE_LEVELS
2981 int
2982 default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
2983 default 3 if 64BIT && !PAGE_SIZE_64KB
2984 default 2
2985
2986source "init/Kconfig"
2987
2988source "kernel/Kconfig.freezer"
2989
2990menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2991
2992config HW_HAS_EISA
2993 bool
2994config HW_HAS_PCI
2995 bool
2996
2997config PCI
2998 bool "Support for PCI controller"
2999 depends on HW_HAS_PCI
3000 select PCI_DOMAINS
3001 help
3002 Find out whether you have a PCI motherboard. PCI is the name of a
3003 bus system, i.e. the way the CPU talks to the other stuff inside
3004 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
3005 say Y, otherwise N.
3006
3007config HT_PCI
3008 bool "Support for HT-linked PCI"
3009 default y
3010 depends on CPU_LOONGSON3
3011 select PCI
3012 select PCI_DOMAINS
3013 help
3014 Loongson family machines use Hyper-Transport bus for inter-core
3015 connection and device connection. The PCI bus is a subordinate
3016 linked at HT. Choose Y for Loongson-3 based machines.
3017
3018config PCI_DOMAINS
3019 bool
3020
3021config PCI_DOMAINS_GENERIC
3022 bool
3023
3024config PCI_DRIVERS_GENERIC
3025 select PCI_DOMAINS_GENERIC if PCI_DOMAINS
3026 bool
3027
3028config PCI_DRIVERS_LEGACY
3029 def_bool !PCI_DRIVERS_GENERIC
3030 select NO_GENERIC_PCI_IOPORT_MAP
3031
3032source "drivers/pci/Kconfig"
3033
3034#
3035# ISA support is now enabled via select. Too many systems still have the one
3036# or other ISA chip on the board that users don't know about so don't expect
3037# users to choose the right thing ...
3038#
3039config ISA
3040 bool
3041
3042config EISA
3043 bool "EISA support"
3044 depends on HW_HAS_EISA
3045 select ISA
3046 select GENERIC_ISA_DMA
3047 ---help---
3048 The Extended Industry Standard Architecture (EISA) bus was
3049 developed as an open alternative to the IBM MicroChannel bus.
3050
3051 The EISA bus provided some of the features of the IBM MicroChannel
3052 bus while maintaining backward compatibility with cards made for
3053 the older ISA bus. The EISA bus saw limited use between 1988 and
3054 1995 when it was made obsolete by the PCI bus.
3055
3056 Say Y here if you are building a kernel for an EISA-based machine.
3057
3058 Otherwise, say N.
3059
3060source "drivers/eisa/Kconfig"
3061
3062config TC
3063 bool "TURBOchannel support"
3064 depends on MACH_DECSTATION
3065 help
3066 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3067 processors. TURBOchannel programming specifications are available
3068 at:
3069 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3070 and:
3071 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3072 Linux driver support status is documented at:
3073 <http://www.linux-mips.org/wiki/DECstation>
3074
3075config MMU
3076 bool
3077 default y
3078
3079config ARCH_MMAP_RND_BITS_MIN
3080 default 12 if 64BIT
3081 default 8
3082
3083config ARCH_MMAP_RND_BITS_MAX
3084 default 18 if 64BIT
3085 default 15
3086
3087config ARCH_MMAP_RND_COMPAT_BITS_MIN
3088 default 8
3089
3090config ARCH_MMAP_RND_COMPAT_BITS_MAX
3091 default 15
3092
3093config I8253
3094 bool
3095 select CLKSRC_I8253
3096 select CLKEVT_I8253
3097 select MIPS_EXTERNAL_TIMER
3098
3099config ZONE_DMA
3100 bool
3101
3102config ZONE_DMA32
3103 bool
3104
3105source "drivers/pcmcia/Kconfig"
3106
3107config RAPIDIO
3108 tristate "RapidIO support"
3109 depends on PCI
3110 default n
3111 help
3112 If you say Y here, the kernel will include drivers and
3113 infrastructure code to support RapidIO interconnect devices.
3114
3115source "drivers/rapidio/Kconfig"
3116
3117endmenu
3118
3119menu "Executable file formats"
3120
3121source "fs/Kconfig.binfmt"
3122
3123config TRAD_SIGNALS
3124 bool
3125
3126config MIPS32_COMPAT
3127 bool
3128
3129config COMPAT
3130 bool
3131
3132config SYSVIPC_COMPAT
3133 bool
3134
3135config MIPS32_O32
3136 bool "Kernel support for o32 binaries"
3137 depends on 64BIT
3138 select ARCH_WANT_OLD_COMPAT_IPC
3139 select COMPAT
3140 select MIPS32_COMPAT
3141 select SYSVIPC_COMPAT if SYSVIPC
3142 help
3143 Select this option if you want to run o32 binaries. These are pure
3144 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
3145 existing binaries are in this format.
3146
3147 If unsure, say Y.
3148
3149config MIPS32_N32
3150 bool "Kernel support for n32 binaries"
3151 depends on 64BIT
3152 select COMPAT
3153 select MIPS32_COMPAT
3154 select SYSVIPC_COMPAT if SYSVIPC
3155 help
3156 Select this option if you want to run n32 binaries. These are
3157 64-bit binaries using 32-bit quantities for addressing and certain
3158 data that would normally be 64-bit. They are used in special
3159 cases.
3160
3161 If unsure, say N.
3162
3163config BINFMT_ELF32
3164 bool
3165 default y if MIPS32_O32 || MIPS32_N32
3166 select ELFCORE
3167
3168endmenu
3169
3170menu "Power management options"
3171
3172config ARCH_HIBERNATION_POSSIBLE
3173 def_bool y
3174 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3175
3176config ARCH_SUSPEND_POSSIBLE
3177 def_bool y
3178 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3179
3180source "kernel/power/Kconfig"
3181
3182endmenu
3183
3184config MIPS_EXTERNAL_TIMER
3185 bool
3186
3187menu "CPU Power Management"
3188
3189if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3190source "drivers/cpufreq/Kconfig"
3191endif
3192
3193source "drivers/cpuidle/Kconfig"
3194
3195endmenu
3196
3197source "net/Kconfig"
3198
3199source "drivers/Kconfig"
3200
3201source "drivers/firmware/Kconfig"
3202
3203source "fs/Kconfig"
3204
3205source "arch/mips/Kconfig.debug"
3206
3207source "security/Kconfig"
3208
3209source "crypto/Kconfig"
3210
3211source "lib/Kconfig"
3212
3213source "arch/mips/kvm/Kconfig"