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Merge branch 'for-linus' of git://git.kernel.dk/linux-block
[mirror_ubuntu-bionic-kernel.git] / arch / mips / Kconfig
CommitLineData
1da177e4
LT
1config MIPS
2 bool
3 default y
a862a426 4 select ARCH_MIGHT_HAVE_PC_PARPORT
393c1262 5 select ARCH_MIGHT_HAVE_PC_SERIO
c3fc5cd5 6 select HAVE_CONTEXT_TRACKING
f8ac0425 7 select HAVE_GENERIC_DMA_COHERENT
ec7748b5 8 select HAVE_IDE
42d4b839 9 select HAVE_OPROFILE
7f788d2d
DCZ
10 select HAVE_PERF_EVENTS
11 select PERF_USE_VMALLOC
88547001 12 select HAVE_ARCH_KGDB
c0ff3c53 13 select HAVE_ARCH_TRACEHOOK
7563bbf8 14 select ARCH_HAVE_CUSTOM_GPIO_H
d2bb0762 15 select HAVE_FUNCTION_TRACER
69a7d1b3 16 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
538f1952
WZ
17 select HAVE_DYNAMIC_FTRACE
18 select HAVE_FTRACE_MCOUNT_RECORD
64575f91 19 select HAVE_C_RECORDMCOUNT
29c5d346 20 select HAVE_FUNCTION_GRAPH_TRACER
c1bf207d
DD
21 select HAVE_KPROBES
22 select HAVE_KRETPROBES
b69ec42b 23 select HAVE_DEBUG_KMEMLEAK
1d7bf993 24 select HAVE_SYSCALL_TRACEPOINTS
e26d196c 25 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
383c97b4 26 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
21a41faa 27 select RTC_LIB if !MACH_LOONGSON
2b78920d 28 select GENERIC_ATOMIC64 if !64BIT
7463449b 29 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
48e1fd5a
DD
30 select HAVE_DMA_ATTRS
31 select HAVE_DMA_API_DEBUG
3bd27e32 32 select GENERIC_IRQ_PROBE
f8396c17 33 select GENERIC_IRQ_SHOW
78857614 34 select GENERIC_PCI_IOMAP
94bb0c1a 35 select HAVE_ARCH_JUMP_LABEL
c1d7e01d 36 select ARCH_WANT_IPC_PARSE_VERSION
0f462e3c 37 select IRQ_FORCED_THREADING
9d15ffc8
TH
38 select HAVE_MEMBLOCK
39 select HAVE_MEMBLOCK_NODE_MAP
40 select ARCH_DISCARD_MEMBLOCK
360014a3 41 select GENERIC_SMP_IDLE_THREAD
4b054495 42 select BUILDTIME_EXTABLE_SORT
cde1794b
AMG
43 select GENERIC_CLOCKEVENTS
44 select GENERIC_CMOS_UPDATE
786d35d4 45 select HAVE_MOD_ARCH_SPECIFIC
4febd95a 46 select VIRT_TO_BUS
2f12fb20
JK
47 select MODULES_USE_ELF_REL if MODULES
48 select MODULES_USE_ELF_RELA if MODULES && 64BIT
50150d2b 49 select CLONE_BACKWARDS
d1a1dc0b 50 select HAVE_DEBUG_STACKOVERFLOW
19952a92 51 select HAVE_CC_STACKPROTECTOR
1da177e4 52
1da177e4
LT
53menu "Machine selection"
54
5e83d430
RB
55choice
56 prompt "System type"
57 default SGI_IP22
1da177e4 58
42a4f17d 59config MIPS_ALCHEMY
c3543e25 60 bool "Alchemy processor based machines"
42a4f17d 61 select 64BIT_PHYS_ADDR
f772cdb2 62 select CEVT_R4K
d7ea335c 63 select CSRC_R4K
42a4f17d
ML
64 select IRQ_CPU
65 select SYS_HAS_CPU_MIPS32_R1
66 select SYS_SUPPORTS_32BIT_KERNEL
67 select SYS_SUPPORTS_APM_EMULATION
efb12436 68 select ARCH_REQUIRE_GPIOLIB
1b93b3c3 69 select SYS_SUPPORTS_ZBOOT
37663860
ML
70 select USB_ARCH_HAS_OHCI
71 select USB_ARCH_HAS_EHCI
1da177e4 72
7ca5dc14
FF
73config AR7
74 bool "Texas Instruments AR7"
75 select BOOT_ELF32
76 select DMA_NONCOHERENT
77 select CEVT_R4K
78 select CSRC_R4K
79 select IRQ_CPU
80 select NO_EXCEPT_FILL
81 select SWAP_IO_SPACE
82 select SYS_HAS_CPU_MIPS32_R1
83 select SYS_HAS_EARLY_PRINTK
84 select SYS_SUPPORTS_32BIT_KERNEL
85 select SYS_SUPPORTS_LITTLE_ENDIAN
1b93b3c3 86 select SYS_SUPPORTS_ZBOOT_UART16550
5f3c9098 87 select ARCH_REQUIRE_GPIOLIB
7ca5dc14 88 select VLYNQ
8551fb64 89 select HAVE_CLK
7ca5dc14
FF
90 help
91 Support for the Texas Instruments AR7 System-on-a-Chip
92 family: TNETD7100, 7200 and 7300.
93
d4a67d9d
GJ
94config ATH79
95 bool "Atheros AR71XX/AR724X/AR913X based boards"
6eae43c5 96 select ARCH_REQUIRE_GPIOLIB
d4a67d9d
GJ
97 select BOOT_RAW
98 select CEVT_R4K
99 select CSRC_R4K
100 select DMA_NONCOHERENT
94638067 101 select HAVE_CLK
2c4f1ac5 102 select CLKDEV_LOOKUP
d4a67d9d 103 select IRQ_CPU
0aabf1a4 104 select MIPS_MACHINE
d4a67d9d
GJ
105 select SYS_HAS_CPU_MIPS32_R2
106 select SYS_HAS_EARLY_PRINTK
107 select SYS_SUPPORTS_32BIT_KERNEL
108 select SYS_SUPPORTS_BIG_ENDIAN
109 help
110 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
111
1c0c13eb 112config BCM47XX
c619366e 113 bool "Broadcom BCM47XX based boards"
2da4c74d 114 select ARCH_WANT_OPTIONAL_GPIOLIB
fe08f8c2 115 select BOOT_RAW
42f77542 116 select CEVT_R4K
940f6b48 117 select CSRC_R4K
1c0c13eb
AJ
118 select DMA_NONCOHERENT
119 select HW_HAS_PCI
120 select IRQ_CPU
314878d2 121 select SYS_HAS_CPU_MIPS32_R1
dd54dedd 122 select NO_EXCEPT_FILL
1c0c13eb
AJ
123 select SYS_SUPPORTS_32BIT_KERNEL
124 select SYS_SUPPORTS_LITTLE_ENDIAN
25e5fb97 125 select SYS_HAS_EARLY_PRINTK
e1ccbb65 126 select EARLY_PRINTK_8250 if EARLY_PRINTK
1c0c13eb
AJ
127 help
128 Support for BCM47XX based boards
129
e7300d04
MB
130config BCM63XX
131 bool "Broadcom BCM63XX based boards"
ae8de61c 132 select BOOT_RAW
e7300d04
MB
133 select CEVT_R4K
134 select CSRC_R4K
135 select DMA_NONCOHERENT
136 select IRQ_CPU
e7300d04
MB
137 select SYS_SUPPORTS_32BIT_KERNEL
138 select SYS_SUPPORTS_BIG_ENDIAN
139 select SYS_HAS_EARLY_PRINTK
140 select SWAP_IO_SPACE
141 select ARCH_REQUIRE_GPIOLIB
3e82eeeb 142 select HAVE_CLK
af2418be 143 select MIPS_L1_CACHE_SHIFT_4
e7300d04
MB
144 help
145 Support for BCM63XX based boards
146
1da177e4 147config MIPS_COBALT
3fa986fa 148 bool "Cobalt Server"
42f77542 149 select CEVT_R4K
940f6b48 150 select CSRC_R4K
1097c6ac 151 select CEVT_GT641XX
1da177e4 152 select DMA_NONCOHERENT
8a8594a7 153 select EARLY_PRINTK_8250 if EARLY_PRINTK
1da177e4 154 select HW_HAS_PCI
d865bea4 155 select I8253
1da177e4
LT
156 select I8259
157 select IRQ_CPU
d5ab1a69 158 select IRQ_GT641XX
252161ec 159 select PCI_GT64XXX_PCI0
e25bfc92 160 select PCI
7cf8053b 161 select SYS_HAS_CPU_NEVADA
0a22e0d4 162 select SYS_HAS_EARLY_PRINTK
ed5ba2fb 163 select SYS_SUPPORTS_32BIT_KERNEL
0e8774b6 164 select SYS_SUPPORTS_64BIT_KERNEL
5e83d430 165 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4
LT
166
167config MACH_DECSTATION
3fa986fa 168 bool "DECstations"
1da177e4 169 select BOOT_ELF32
6457d9fc 170 select CEVT_DS1287
42f77542 171 select CEVT_R4K
4247417d 172 select CSRC_IOASIC
940f6b48 173 select CSRC_R4K
20d60d99
MR
174 select CPU_DADDI_WORKAROUNDS if 64BIT
175 select CPU_R4000_WORKAROUNDS if 64BIT
176 select CPU_R4400_WORKAROUNDS if 64BIT
1da177e4 177 select DMA_NONCOHERENT
d388d685 178 select NO_IOPORT
1da177e4 179 select IRQ_CPU
7cf8053b
RB
180 select SYS_HAS_CPU_R3000
181 select SYS_HAS_CPU_R4X00
ed5ba2fb 182 select SYS_SUPPORTS_32BIT_KERNEL
7d60717e 183 select SYS_SUPPORTS_64BIT_KERNEL
5e83d430 184 select SYS_SUPPORTS_LITTLE_ENDIAN
1723b4a3
AN
185 select SYS_SUPPORTS_128HZ
186 select SYS_SUPPORTS_256HZ
187 select SYS_SUPPORTS_1024HZ
930beb5a 188 select MIPS_L1_CACHE_SHIFT_4
5e83d430 189 help
1da177e4
LT
190 This enables support for DEC's MIPS based workstations. For details
191 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
192 DECstation porting pages on <http://decstation.unix-ag.org/>.
193
194 If you have one of the following DECstation Models you definitely
195 want to choose R4xx0 for the CPU Type:
196
9308816c
RB
197 DECstation 5000/50
198 DECstation 5000/150
199 DECstation 5000/260
200 DECsystem 5900/260
1da177e4
LT
201
202 otherwise choose R3000.
203
5e83d430 204config MACH_JAZZ
3fa986fa 205 bool "Jazz family of machines"
0e2794b0
RB
206 select FW_ARC
207 select FW_ARC32
5e83d430 208 select ARCH_MAY_HAVE_PC_FDC
42f77542 209 select CEVT_R4K
940f6b48 210 select CSRC_R4K
e2defae5 211 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
5e83d430 212 select GENERIC_ISA_DMA
8a118c38 213 select HAVE_PCSPKR_PLATFORM
ea202c63 214 select IRQ_CPU
d865bea4 215 select I8253
5e83d430
RB
216 select I8259
217 select ISA
7cf8053b 218 select SYS_HAS_CPU_R4X00
5e83d430 219 select SYS_SUPPORTS_32BIT_KERNEL
7d60717e 220 select SYS_SUPPORTS_64BIT_KERNEL
1723b4a3 221 select SYS_SUPPORTS_100HZ
1da177e4 222 help
5e83d430
RB
223 This a family of machines based on the MIPS R4030 chipset which was
224 used by several vendors to build RISC/os and Windows NT workstations.
692105b8 225 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
5e83d430
RB
226 Olivetti M700-10 workstations.
227
5ebabe59
LPC
228config MACH_JZ4740
229 bool "Ingenic JZ4740 based machines"
230 select SYS_HAS_CPU_MIPS32_R1
231 select SYS_SUPPORTS_32BIT_KERNEL
232 select SYS_SUPPORTS_LITTLE_ENDIAN
f9c9affc 233 select SYS_SUPPORTS_ZBOOT_UART16550
5ebabe59
LPC
234 select DMA_NONCOHERENT
235 select IRQ_CPU
5ebabe59
LPC
236 select ARCH_REQUIRE_GPIOLIB
237 select SYS_HAS_EARLY_PRINTK
238 select HAVE_PWM
ab5330eb 239 select HAVE_CLK
83bc7692 240 select GENERIC_IRQ_CHIP
5ebabe59 241
171bb2f1
JC
242config LANTIQ
243 bool "Lantiq based platforms"
244 select DMA_NONCOHERENT
245 select IRQ_CPU
246 select CEVT_R4K
247 select CSRC_R4K
248 select SYS_HAS_CPU_MIPS32_R1
249 select SYS_HAS_CPU_MIPS32_R2
250 select SYS_SUPPORTS_BIG_ENDIAN
251 select SYS_SUPPORTS_32BIT_KERNEL
252 select SYS_SUPPORTS_MULTITHREADING
253 select SYS_HAS_EARLY_PRINTK
254 select ARCH_REQUIRE_GPIOLIB
255 select SWAP_IO_SPACE
256 select BOOT_RAW
287e3f3f
JC
257 select HAVE_MACH_CLKDEV
258 select CLKDEV_LOOKUP
a0392222 259 select USE_OF
3f8c50c9
JC
260 select PINCTRL
261 select PINCTRL_LANTIQ
171bb2f1 262
1f21d2bd
BM
263config LASAT
264 bool "LASAT Networks platforms"
42f77542 265 select CEVT_R4K
940f6b48 266 select CSRC_R4K
1f21d2bd
BM
267 select DMA_NONCOHERENT
268 select SYS_HAS_EARLY_PRINTK
269 select HW_HAS_PCI
a5ccfe5c 270 select IRQ_CPU
1f21d2bd
BM
271 select PCI_GT64XXX_PCI0
272 select MIPS_NILE4
273 select R5000_CPU_SCACHE
274 select SYS_HAS_CPU_R5000
275 select SYS_SUPPORTS_32BIT_KERNEL
276 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
277 select SYS_SUPPORTS_LITTLE_ENDIAN
1f21d2bd 278
85749d24
WZ
279config MACH_LOONGSON
280 bool "Loongson family of machines"
c7e8c668 281 select SYS_SUPPORTS_ZBOOT
ade299d8 282 help
85749d24
WZ
283 This enables the support of Loongson family of machines.
284
285 Loongson is a family of general-purpose MIPS-compatible CPUs.
286 developed at Institute of Computing Technology (ICT),
287 Chinese Academy of Sciences (CAS) in the People's Republic
288 of China. The chief architect is Professor Weiwu Hu.
ade299d8 289
ca585cf9
KC
290config MACH_LOONGSON1
291 bool "Loongson 1 family of machines"
292 select SYS_SUPPORTS_ZBOOT
293 help
294 This enables support for the Loongson 1 based machines.
295
296 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
297 the ICT (Institute of Computing Technology) and the Chinese Academy
298 of Sciences.
299
1da177e4 300config MIPS_MALTA
3fa986fa 301 bool "MIPS Malta board"
61ed242d 302 select ARCH_MAY_HAVE_PC_FDC
1da177e4 303 select BOOT_ELF32
fa71c960 304 select BOOT_RAW
42f77542 305 select CEVT_R4K
940f6b48 306 select CSRC_R4K
778eeb1b 307 select CSRC_GIC
885014bc 308 select DMA_MAYBE_COHERENT
1da177e4 309 select GENERIC_ISA_DMA
8a118c38 310 select HAVE_PCSPKR_PLATFORM
aa414dff 311 select IRQ_CPU
39b8d525 312 select IRQ_GIC
1da177e4 313 select HW_HAS_PCI
d865bea4 314 select I8253
1da177e4 315 select I8259
5e83d430 316 select MIPS_BONITO64
9318c51a 317 select MIPS_CPU_SCACHE
252161ec 318 select PCI_GT64XXX_PCI0
5e83d430 319 select MIPS_MSC
1da177e4 320 select SWAP_IO_SPACE
7cf8053b
RB
321 select SYS_HAS_CPU_MIPS32_R1
322 select SYS_HAS_CPU_MIPS32_R2
323 select SYS_HAS_CPU_MIPS64_R1
5d9fbed1 324 select SYS_HAS_CPU_MIPS64_R2
7cf8053b
RB
325 select SYS_HAS_CPU_NEVADA
326 select SYS_HAS_CPU_RM7000
ed5ba2fb
YY
327 select SYS_SUPPORTS_32BIT_KERNEL
328 select SYS_SUPPORTS_64BIT_KERNEL
5e83d430
RB
329 select SYS_SUPPORTS_BIG_ENDIAN
330 select SYS_SUPPORTS_LITTLE_ENDIAN
0365070f 331 select SYS_SUPPORTS_MIPS_CMP
f41ae0b2 332 select SYS_SUPPORTS_MULTITHREADING
9693a853 333 select SYS_SUPPORTS_SMARTMIPS
1b93b3c3 334 select SYS_SUPPORTS_ZBOOT
1da177e4 335 help
f638d197 336 This enables support for the MIPS Technologies Malta evaluation
1da177e4
LT
337 board.
338
ec47b274
SH
339config MIPS_SEAD3
340 bool "MIPS SEAD3 board"
341 select BOOT_ELF32
342 select BOOT_RAW
343 select CEVT_R4K
344 select CSRC_R4K
dfa762e1 345 select CSRC_GIC
ec47b274
SH
346 select CPU_MIPSR2_IRQ_VI
347 select CPU_MIPSR2_IRQ_EI
348 select DMA_NONCOHERENT
349 select IRQ_CPU
350 select IRQ_GIC
44327236 351 select LIBFDT
ec47b274
SH
352 select MIPS_MSC
353 select SYS_HAS_CPU_MIPS32_R1
354 select SYS_HAS_CPU_MIPS32_R2
355 select SYS_HAS_CPU_MIPS64_R1
356 select SYS_HAS_EARLY_PRINTK
357 select SYS_SUPPORTS_32BIT_KERNEL
358 select SYS_SUPPORTS_64BIT_KERNEL
359 select SYS_SUPPORTS_BIG_ENDIAN
360 select SYS_SUPPORTS_LITTLE_ENDIAN
361 select SYS_SUPPORTS_SMARTMIPS
a6a4834c 362 select SYS_SUPPORTS_MICROMIPS
ec47b274
SH
363 select USB_ARCH_HAS_EHCI
364 select USB_EHCI_BIG_ENDIAN_DESC
365 select USB_EHCI_BIG_ENDIAN_MMIO
9b731009 366 select USE_OF
ec47b274
SH
367 help
368 This enables support for the MIPS Technologies SEAD3 evaluation
369 board.
370
a83860c2
RB
371config NEC_MARKEINS
372 bool "NEC EMMA2RH Mark-eins board"
373 select SOC_EMMA2RH
374 select HW_HAS_PCI
375 help
376 This enables support for the NEC Electronics Mark-eins boards.
ade299d8 377
5e83d430 378config MACH_VR41XX
74142d65 379 bool "NEC VR4100 series based machines"
42f77542 380 select CEVT_R4K
940f6b48 381 select CSRC_R4K
7cf8053b 382 select SYS_HAS_CPU_VR41XX
27fdd325 383 select ARCH_REQUIRE_GPIOLIB
5e83d430 384
edb6310a
DL
385config NXP_STB220
386 bool "NXP STB220 board"
387 select SOC_PNX833X
388 help
389 Support for NXP Semiconductors STB220 Development Board.
390
391config NXP_STB225
392 bool "NXP 225 board"
393 select SOC_PNX833X
394 select SOC_PNX8335
395 help
396 Support for NXP Semiconductors STB225 Development Board.
397
9267a30d
MSJ
398config PMC_MSP
399 bool "PMC-Sierra MSP chipsets"
39d30c13
A
400 select CEVT_R4K
401 select CSRC_R4K
9267a30d
MSJ
402 select DMA_NONCOHERENT
403 select SWAP_IO_SPACE
404 select NO_EXCEPT_FILL
405 select BOOT_RAW
406 select SYS_HAS_CPU_MIPS32_R1
407 select SYS_HAS_CPU_MIPS32_R2
408 select SYS_SUPPORTS_32BIT_KERNEL
409 select SYS_SUPPORTS_BIG_ENDIAN
9267a30d
MSJ
410 select IRQ_CPU
411 select SERIAL_8250
412 select SERIAL_8250_CONSOLE
9296d94d
FF
413 select USB_EHCI_BIG_ENDIAN_MMIO
414 select USB_EHCI_BIG_ENDIAN_DESC
9267a30d
MSJ
415 help
416 This adds support for the PMC-Sierra family of Multi-Service
417 Processor System-On-A-Chips. These parts include a number
418 of integrated peripherals, interfaces and DSPs in addition to
419 a variety of MIPS cores.
420
ae2b5bb6
JC
421config RALINK
422 bool "Ralink based machines"
423 select CEVT_R4K
424 select CSRC_R4K
425 select BOOT_RAW
426 select DMA_NONCOHERENT
427 select IRQ_CPU
428 select USE_OF
429 select SYS_HAS_CPU_MIPS32_R1
430 select SYS_HAS_CPU_MIPS32_R2
431 select SYS_SUPPORTS_32BIT_KERNEL
432 select SYS_SUPPORTS_LITTLE_ENDIAN
433 select SYS_HAS_EARLY_PRINTK
434 select HAVE_MACH_CLKDEV
435 select CLKDEV_LOOKUP
2a153f1c
JC
436 select ARCH_HAS_RESET_CONTROLLER
437 select RESET_CONTROLLER
ae2b5bb6 438
1da177e4 439config SGI_IP22
3fa986fa 440 bool "SGI IP22 (Indy/Indigo2)"
0e2794b0
RB
441 select FW_ARC
442 select FW_ARC32
1da177e4 443 select BOOT_ELF32
42f77542 444 select CEVT_R4K
940f6b48 445 select CSRC_R4K
e2defae5 446 select DEFAULT_SGI_PARTITION
1da177e4 447 select DMA_NONCOHERENT
5e83d430 448 select HW_HAS_EISA
d865bea4 449 select I8253
68de4803 450 select I8259
1da177e4
LT
451 select IP22_CPU_SCACHE
452 select IRQ_CPU
aa414dff 453 select GENERIC_ISA_DMA_SUPPORT_BROKEN
e2defae5
TB
454 select SGI_HAS_I8042
455 select SGI_HAS_INDYDOG
36e5c21d 456 select SGI_HAS_HAL2
e2defae5
TB
457 select SGI_HAS_SEEQ
458 select SGI_HAS_WD93
459 select SGI_HAS_ZILOG
1da177e4 460 select SWAP_IO_SPACE
7cf8053b
RB
461 select SYS_HAS_CPU_R4X00
462 select SYS_HAS_CPU_R5000
2b5e63f6
MM
463 #
464 # Disable EARLY_PRINTK for now since it leads to overwritten prom
465 # memory during early boot on some machines.
466 #
467 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
468 # for a more details discussion
469 #
470 # select SYS_HAS_EARLY_PRINTK
ed5ba2fb
YY
471 select SYS_SUPPORTS_32BIT_KERNEL
472 select SYS_SUPPORTS_64BIT_KERNEL
5e83d430 473 select SYS_SUPPORTS_BIG_ENDIAN
930beb5a 474 select MIPS_L1_CACHE_SHIFT_7
1da177e4
LT
475 help
476 This are the SGI Indy, Challenge S and Indigo2, as well as certain
477 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
478 that runs on these, say Y here.
479
480config SGI_IP27
3fa986fa 481 bool "SGI IP27 (Origin200/2000)"
0e2794b0
RB
482 select FW_ARC
483 select FW_ARC64
5e83d430 484 select BOOT_ELF64
e2defae5 485 select DEFAULT_SGI_PARTITION
634286f1 486 select DMA_COHERENT
36a88530 487 select SYS_HAS_EARLY_PRINTK
1da177e4 488 select HW_HAS_PCI
130e2fb7 489 select NR_CPUS_DEFAULT_64
7cf8053b 490 select SYS_HAS_CPU_R10000
ed5ba2fb 491 select SYS_SUPPORTS_64BIT_KERNEL
5e83d430 492 select SYS_SUPPORTS_BIG_ENDIAN
d8cb4e11 493 select SYS_SUPPORTS_NUMA
1a5c5de1 494 select SYS_SUPPORTS_SMP
930beb5a 495 select MIPS_L1_CACHE_SHIFT_7
1da177e4
LT
496 help
497 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
498 workstations. To compile a Linux kernel that runs on these, say Y
499 here.
500
e2defae5 501config SGI_IP28
7d60717e 502 bool "SGI IP28 (Indigo2 R10k)"
0e2794b0
RB
503 select FW_ARC
504 select FW_ARC64
e2defae5
TB
505 select BOOT_ELF64
506 select CEVT_R4K
507 select CSRC_R4K
508 select DEFAULT_SGI_PARTITION
509 select DMA_NONCOHERENT
510 select GENERIC_ISA_DMA_SUPPORT_BROKEN
511 select IRQ_CPU
512 select HW_HAS_EISA
513 select I8253
514 select I8259
e2defae5
TB
515 select SGI_HAS_I8042
516 select SGI_HAS_INDYDOG
5b438c44 517 select SGI_HAS_HAL2
e2defae5
TB
518 select SGI_HAS_SEEQ
519 select SGI_HAS_WD93
520 select SGI_HAS_ZILOG
521 select SWAP_IO_SPACE
522 select SYS_HAS_CPU_R10000
2b5e63f6
MM
523 #
524 # Disable EARLY_PRINTK for now since it leads to overwritten prom
525 # memory during early boot on some machines.
526 #
527 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
528 # for a more details discussion
529 #
530 # select SYS_HAS_EARLY_PRINTK
e2defae5
TB
531 select SYS_SUPPORTS_64BIT_KERNEL
532 select SYS_SUPPORTS_BIG_ENDIAN
533 help
534 This is the SGI Indigo2 with R10000 processor. To compile a Linux
535 kernel that runs on these, say Y here.
536
1da177e4 537config SGI_IP32
cfd2afc0 538 bool "SGI IP32 (O2)"
0e2794b0
RB
539 select FW_ARC
540 select FW_ARC32
1da177e4 541 select BOOT_ELF32
42f77542 542 select CEVT_R4K
940f6b48 543 select CSRC_R4K
1da177e4
LT
544 select DMA_NONCOHERENT
545 select HW_HAS_PCI
dd67b155 546 select IRQ_CPU
1da177e4
LT
547 select R5000_CPU_SCACHE
548 select RM7000_CPU_SCACHE
7cf8053b
RB
549 select SYS_HAS_CPU_R5000
550 select SYS_HAS_CPU_R10000 if BROKEN
551 select SYS_HAS_CPU_RM7000
dd2f18fe 552 select SYS_HAS_CPU_NEVADA
ed5ba2fb 553 select SYS_SUPPORTS_64BIT_KERNEL
23fbee9d 554 select SYS_SUPPORTS_BIG_ENDIAN
23fbee9d 555 help
5e83d430 556 If you want this kernel to run on SGI O2 workstation, say Y here.
1da177e4 557
ade299d8
YY
558config SIBYTE_CRHINE
559 bool "Sibyte BCM91120C-CRhine"
9a6dcea1
AI
560 select BOOT_ELF32
561 select DMA_COHERENT
ade299d8 562 select SIBYTE_BCM1120
9a6dcea1 563 select SWAP_IO_SPACE
7cf8053b 564 select SYS_HAS_CPU_SB1
9a6dcea1
AI
565 select SYS_SUPPORTS_BIG_ENDIAN
566 select SYS_SUPPORTS_LITTLE_ENDIAN
567
ade299d8
YY
568config SIBYTE_CARMEL
569 bool "Sibyte BCM91120x-Carmel"
5e83d430 570 select BOOT_ELF32
1da177e4 571 select DMA_COHERENT
ade299d8 572 select SIBYTE_BCM1120
5e83d430 573 select SWAP_IO_SPACE
7cf8053b 574 select SYS_HAS_CPU_SB1
81731f79 575 select SYS_SUPPORTS_BIG_ENDIAN
5e83d430 576 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 577
ade299d8
YY
578config SIBYTE_CRHONE
579 bool "Sibyte BCM91125C-CRhone"
5e83d430
RB
580 select BOOT_ELF32
581 select DMA_COHERENT
ade299d8 582 select SIBYTE_BCM1125
5e83d430 583 select SWAP_IO_SPACE
7cf8053b 584 select SYS_HAS_CPU_SB1
5e83d430 585 select SYS_SUPPORTS_BIG_ENDIAN
ade299d8 586 select SYS_SUPPORTS_HIGHMEM
5e83d430 587 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 588
5e83d430 589config SIBYTE_RHONE
3fa986fa 590 bool "Sibyte BCM91125E-Rhone"
5e83d430
RB
591 select BOOT_ELF32
592 select DMA_COHERENT
593 select SIBYTE_BCM1125H
594 select SWAP_IO_SPACE
7cf8053b 595 select SYS_HAS_CPU_SB1
5e83d430
RB
596 select SYS_SUPPORTS_BIG_ENDIAN
597 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 598
ade299d8
YY
599config SIBYTE_SWARM
600 bool "Sibyte BCM91250A-SWARM"
5e83d430 601 select BOOT_ELF32
26a940e2 602 select DMA_COHERENT
fcf3ca4c 603 select HAVE_PATA_PLATFORM
ade299d8 604 select SIBYTE_SB1250
5e83d430 605 select SWAP_IO_SPACE
7cf8053b 606 select SYS_HAS_CPU_SB1
5e83d430 607 select SYS_SUPPORTS_BIG_ENDIAN
ade299d8 608 select SYS_SUPPORTS_HIGHMEM
e3ad1c23 609 select SYS_SUPPORTS_LITTLE_ENDIAN
cce335ae 610 select ZONE_DMA32 if 64BIT
e3ad1c23 611
ade299d8
YY
612config SIBYTE_LITTLESUR
613 bool "Sibyte BCM91250C2-LittleSur"
5e83d430
RB
614 select BOOT_ELF32
615 select DMA_COHERENT
fcf3ca4c 616 select HAVE_PATA_PLATFORM
5e83d430
RB
617 select SIBYTE_SB1250
618 select SWAP_IO_SPACE
7cf8053b 619 select SYS_HAS_CPU_SB1
5e83d430
RB
620 select SYS_SUPPORTS_BIG_ENDIAN
621 select SYS_SUPPORTS_HIGHMEM
622 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 623
ade299d8
YY
624config SIBYTE_SENTOSA
625 bool "Sibyte BCM91250E-Sentosa"
5e83d430
RB
626 select BOOT_ELF32
627 select DMA_COHERENT
628 select SIBYTE_SB1250
629 select SWAP_IO_SPACE
7cf8053b 630 select SYS_HAS_CPU_SB1
5e83d430 631 select SYS_SUPPORTS_BIG_ENDIAN
5e83d430 632 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 633
ade299d8
YY
634config SIBYTE_BIGSUR
635 bool "Sibyte BCM91480B-BigSur"
5e83d430
RB
636 select BOOT_ELF32
637 select DMA_COHERENT
ade299d8 638 select NR_CPUS_DEFAULT_4
ade299d8 639 select SIBYTE_BCM1x80
5e83d430 640 select SWAP_IO_SPACE
7cf8053b 641 select SYS_HAS_CPU_SB1
5e83d430 642 select SYS_SUPPORTS_BIG_ENDIAN
651194f8 643 select SYS_SUPPORTS_HIGHMEM
5e83d430 644 select SYS_SUPPORTS_LITTLE_ENDIAN
cce335ae 645 select ZONE_DMA32 if 64BIT
1da177e4 646
14b36af4
TB
647config SNI_RM
648 bool "SNI RM200/300/400"
0e2794b0
RB
649 select FW_ARC if CPU_LITTLE_ENDIAN
650 select FW_ARC32 if CPU_LITTLE_ENDIAN
aaa9fad3 651 select FW_SNIPROM if CPU_BIG_ENDIAN
61ed242d 652 select ARCH_MAY_HAVE_PC_FDC
1da177e4 653 select BOOT_ELF32
42f77542 654 select CEVT_R4K
940f6b48 655 select CSRC_R4K
e2defae5 656 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
1da177e4
LT
657 select DMA_NONCOHERENT
658 select GENERIC_ISA_DMA
8a118c38 659 select HAVE_PCSPKR_PLATFORM
5e83d430 660 select HW_HAS_EISA
1da177e4 661 select HW_HAS_PCI
c066a32a 662 select IRQ_CPU
d865bea4 663 select I8253
1da177e4
LT
664 select I8259
665 select ISA
4a0312fc 666 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
7cf8053b 667 select SYS_HAS_CPU_R4X00
4a0312fc 668 select SYS_HAS_CPU_R5000
c066a32a 669 select SYS_HAS_CPU_R10000
4a0312fc 670 select R5000_CPU_SCACHE
36a88530 671 select SYS_HAS_EARLY_PRINTK
ed5ba2fb 672 select SYS_SUPPORTS_32BIT_KERNEL
7d60717e 673 select SYS_SUPPORTS_64BIT_KERNEL
4a0312fc 674 select SYS_SUPPORTS_BIG_ENDIAN
797798c1 675 select SYS_SUPPORTS_HIGHMEM
5e83d430 676 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 677 help
14b36af4
TB
678 The SNI RM200/300/400 are MIPS-based machines manufactured by
679 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
1da177e4
LT
680 Technology and now in turn merged with Fujitsu. Say Y here to
681 support this machine type.
682
edcaf1a6
AN
683config MACH_TX39XX
684 bool "Toshiba TX39 series based machines"
5e83d430 685
edcaf1a6
AN
686config MACH_TX49XX
687 bool "Toshiba TX49 series based machines"
5e83d430 688
73b4390f
RB
689config MIKROTIK_RB532
690 bool "Mikrotik RB532 boards"
691 select CEVT_R4K
692 select CSRC_R4K
693 select DMA_NONCOHERENT
73b4390f
RB
694 select HW_HAS_PCI
695 select IRQ_CPU
696 select SYS_HAS_CPU_MIPS32_R1
697 select SYS_SUPPORTS_32BIT_KERNEL
698 select SYS_SUPPORTS_LITTLE_ENDIAN
699 select SWAP_IO_SPACE
700 select BOOT_RAW
d888e25b 701 select ARCH_REQUIRE_GPIOLIB
930beb5a 702 select MIPS_L1_CACHE_SHIFT_4
73b4390f
RB
703 help
704 Support the Mikrotik(tm) RouterBoard 532 series,
705 based on the IDT RC32434 SoC.
706
9ddebc46
DD
707config CAVIUM_OCTEON_SOC
708 bool "Cavium Networks Octeon SoC based boards"
a86c7f72
DD
709 select CEVT_R4K
710 select 64BIT_PHYS_ADDR
711 select DMA_COHERENT
712 select SYS_SUPPORTS_64BIT_KERNEL
713 select SYS_SUPPORTS_BIG_ENDIAN
f65aad41 714 select EDAC_SUPPORT
773cb77d 715 select SYS_SUPPORTS_HOTPLUG_CPU
a86c7f72 716 select SYS_HAS_EARLY_PRINTK
5e683389 717 select SYS_HAS_CPU_CAVIUM_OCTEON
a86c7f72 718 select SWAP_IO_SPACE
e8635b48 719 select HW_HAS_PCI
f00e001e 720 select ZONE_DMA32
340fbb8b
DD
721 select USB_ARCH_HAS_OHCI
722 select USB_ARCH_HAS_EHCI
465aaed0 723 select HOLES_IN_ZONE
99cab4bb 724 select ARCH_REQUIRE_GPIOLIB
a86c7f72
DD
725 help
726 This option supports all of the Octeon reference boards from Cavium
727 Networks. It builds a kernel that dynamically determines the Octeon
728 CPU type and supports all known board reference implementations.
729 Some of the supported boards are:
730 EBT3000
731 EBH3000
732 EBH3100
733 Thunder
734 Kodama
735 Hikari
736 Say Y here for most Octeon reference boards.
737
7f058e85
J
738config NLM_XLR_BOARD
739 bool "Netlogic XLR/XLS based systems"
7f058e85
J
740 select BOOT_ELF32
741 select NLM_COMMON
7f058e85
J
742 select SYS_HAS_CPU_XLR
743 select SYS_SUPPORTS_SMP
744 select HW_HAS_PCI
745 select SWAP_IO_SPACE
746 select SYS_SUPPORTS_32BIT_KERNEL
747 select SYS_SUPPORTS_64BIT_KERNEL
748 select 64BIT_PHYS_ADDR
749 select SYS_SUPPORTS_BIG_ENDIAN
750 select SYS_SUPPORTS_HIGHMEM
751 select DMA_COHERENT
752 select NR_CPUS_DEFAULT_32
753 select CEVT_R4K
754 select CSRC_R4K
755 select IRQ_CPU
b97215fd 756 select ZONE_DMA32 if 64BIT
7f058e85
J
757 select SYNC_R4K
758 select SYS_HAS_EARLY_PRINTK
f35574a3
J
759 select USB_ARCH_HAS_OHCI if USB_SUPPORT
760 select USB_ARCH_HAS_EHCI if USB_SUPPORT
8f0b0430
J
761 select SYS_SUPPORTS_ZBOOT
762 select SYS_SUPPORTS_ZBOOT_UART16550
7f058e85
J
763 help
764 Support for systems based on Netlogic XLR and XLS processors.
765 Say Y here if you have a XLR or XLS based board.
766
1c773ea4
J
767config NLM_XLP_BOARD
768 bool "Netlogic XLP based systems"
1c773ea4
J
769 select BOOT_ELF32
770 select NLM_COMMON
771 select SYS_HAS_CPU_XLP
772 select SYS_SUPPORTS_SMP
773 select HW_HAS_PCI
1c773ea4
J
774 select SYS_SUPPORTS_32BIT_KERNEL
775 select SYS_SUPPORTS_64BIT_KERNEL
776 select 64BIT_PHYS_ADDR
777 select SYS_SUPPORTS_BIG_ENDIAN
778 select SYS_SUPPORTS_LITTLE_ENDIAN
779 select SYS_SUPPORTS_HIGHMEM
780 select DMA_COHERENT
781 select NR_CPUS_DEFAULT_32
782 select CEVT_R4K
783 select CSRC_R4K
784 select IRQ_CPU
c24a8a7a 785 select ARCH_SUPPORTS_MSI
b97215fd 786 select ZONE_DMA32 if 64BIT
1c773ea4
J
787 select SYNC_R4K
788 select SYS_HAS_EARLY_PRINTK
2f6528e1 789 select USE_OF
8f0b0430
J
790 select SYS_SUPPORTS_ZBOOT
791 select SYS_SUPPORTS_ZBOOT_UART16550
1c773ea4
J
792 help
793 This board is based on Netlogic XLP Processor.
794 Say Y here if you have a XLP based board.
795
5e83d430 796endchoice
1da177e4 797
e8c7c482 798source "arch/mips/alchemy/Kconfig"
d4a67d9d 799source "arch/mips/ath79/Kconfig"
a656ffcb 800source "arch/mips/bcm47xx/Kconfig"
e7300d04 801source "arch/mips/bcm63xx/Kconfig"
5e83d430 802source "arch/mips/jazz/Kconfig"
5ebabe59 803source "arch/mips/jz4740/Kconfig"
8ec6d935 804source "arch/mips/lantiq/Kconfig"
1f21d2bd 805source "arch/mips/lasat/Kconfig"
0f3a05cb 806source "arch/mips/pmcs-msp71xx/Kconfig"
ae2b5bb6 807source "arch/mips/ralink/Kconfig"
29c48699 808source "arch/mips/sgi-ip27/Kconfig"
38b18f72 809source "arch/mips/sibyte/Kconfig"
22b1d707 810source "arch/mips/txx9/Kconfig"
5e83d430 811source "arch/mips/vr41xx/Kconfig"
a86c7f72 812source "arch/mips/cavium-octeon/Kconfig"
85749d24 813source "arch/mips/loongson/Kconfig"
ca585cf9 814source "arch/mips/loongson1/Kconfig"
7f058e85 815source "arch/mips/netlogic/Kconfig"
38b18f72 816
5e83d430
RB
817endmenu
818
1da177e4
LT
819config RWSEM_GENERIC_SPINLOCK
820 bool
821 default y
822
823config RWSEM_XCHGADD_ALGORITHM
824 bool
825
f0d1b0b3
DH
826config ARCH_HAS_ILOG2_U32
827 bool
828 default n
829
830config ARCH_HAS_ILOG2_U64
831 bool
832 default n
833
3c9ee7ef
AM
834config GENERIC_HWEIGHT
835 bool
836 default y
837
1da177e4
LT
838config GENERIC_CALIBRATE_DELAY
839 bool
840 default y
841
ae1e9130 842config SCHED_OMIT_FRAME_POINTER
1cc89038
AN
843 bool
844 default y
845
1da177e4
LT
846#
847# Select some configuration options automatically based on user selections.
848#
0e2794b0 849config FW_ARC
1da177e4 850 bool
1da177e4 851
61ed242d
RB
852config ARCH_MAY_HAVE_PC_FDC
853 bool
854
9267a30d
MSJ
855config BOOT_RAW
856 bool
857
217dd11e
RB
858config CEVT_BCM1480
859 bool
860
6457d9fc
YY
861config CEVT_DS1287
862 bool
863
1097c6ac
YY
864config CEVT_GT641XX
865 bool
866
42f77542
RB
867config CEVT_R4K
868 bool
869
0ab2b7d0
RG
870config CEVT_GIC
871 bool
872
217dd11e
RB
873config CEVT_SB1250
874 bool
875
229f773e
AN
876config CEVT_TXX9
877 bool
878
217dd11e
RB
879config CSRC_BCM1480
880 bool
881
4247417d
YY
882config CSRC_IOASIC
883 bool
884
940f6b48
RB
885config CSRC_R4K
886 bool
887
778eeb1b
SH
888config CSRC_GIC
889 bool
890
217dd11e
RB
891config CSRC_SB1250
892 bool
893
a9aec7fe 894config GPIO_TXX9
7444a72e 895 select ARCH_REQUIRE_GPIOLIB
a9aec7fe
AN
896 bool
897
0e2794b0 898config FW_CFE
df78b5c8
AJ
899 bool
900
4bafad92
FT
901config ARCH_DMA_ADDR_T_64BIT
902 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
903
885014bc
FF
904config DMA_MAYBE_COHERENT
905 select DMA_NONCOHERENT
906 bool
907
4ce588cd 908config DMA_COHERENT
1da177e4
LT
909 bool
910
4ce588cd
RB
911config DMA_NONCOHERENT
912 bool
e1e02b32 913 select NEED_DMA_MAP_STATE
4ce588cd 914
e1e02b32 915config NEED_DMA_MAP_STATE
1da177e4
LT
916 bool
917
36a88530 918config SYS_HAS_EARLY_PRINTK
1da177e4 919 bool
1da177e4 920
dbb74540 921config HOTPLUG_CPU
1b2bc75c 922 bool "Support for hot-pluggable CPUs"
40b31360 923 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
1b2bc75c
RB
924 help
925 Say Y here to allow turning CPUs off and on. CPUs can be
926 controlled through /sys/devices/system/cpu.
927 (Note: power management support will enable this option
928 automatically on SMP systems. )
929 Say N if you want to disable CPU hotplug.
930
931config SYS_SUPPORTS_HOTPLUG_CPU
dbb74540 932 bool
dbb74540 933
1da177e4
LT
934config I8259
935 bool
1da177e4 936
1da177e4
LT
937config MIPS_BONITO64
938 bool
1da177e4
LT
939
940config MIPS_MSC
941 bool
1da177e4 942
1f21d2bd
BM
943config MIPS_NILE4
944 bool
945
39b8d525
RB
946config SYNC_R4K
947 bool
948
487d70d0
GJ
949config MIPS_MACHINE
950 def_bool n
951
d388d685
MR
952config NO_IOPORT
953 def_bool n
954
8313da30
RB
955config GENERIC_ISA_DMA
956 bool
957 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
a35bee8a 958 select ISA_DMA_API
8313da30 959
aa414dff
RB
960config GENERIC_ISA_DMA_SUPPORT_BROKEN
961 bool
8313da30 962 select GENERIC_ISA_DMA
aa414dff 963
a35bee8a
NK
964config ISA_DMA_API
965 bool
966
465aaed0
DD
967config HOLES_IN_ZONE
968 bool
969
5e83d430 970#
6b2aac42 971# Endianness selection. Sufficiently obscure so many users don't know what to
5e83d430
RB
972# answer,so we try hard to limit the available choices. Also the use of a
973# choice statement should be more obvious to the user.
974#
975choice
6b2aac42 976 prompt "Endianness selection"
1da177e4
LT
977 help
978 Some MIPS machines can be configured for either little or big endian
5e83d430 979 byte order. These modes require different kernels and a different
3cb2fccc 980 Linux distribution. In general there is one preferred byteorder for a
5e83d430 981 particular system but some systems are just as commonly used in the
3dde6ad8 982 one or the other endianness.
5e83d430
RB
983
984config CPU_BIG_ENDIAN
985 bool "Big endian"
986 depends on SYS_SUPPORTS_BIG_ENDIAN
987
988config CPU_LITTLE_ENDIAN
989 bool "Little endian"
990 depends on SYS_SUPPORTS_LITTLE_ENDIAN
5e83d430
RB
991
992endchoice
993
22b0763a
DD
994config EXPORT_UASM
995 bool
996
2116245e
RB
997config SYS_SUPPORTS_APM_EMULATION
998 bool
999
5e83d430
RB
1000config SYS_SUPPORTS_BIG_ENDIAN
1001 bool
1002
1003config SYS_SUPPORTS_LITTLE_ENDIAN
1004 bool
1da177e4 1005
9cffd154
DD
1006config SYS_SUPPORTS_HUGETLBFS
1007 bool
1008 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1009 default y
1010
aa1762f4
DD
1011config MIPS_HUGE_TLB_SUPPORT
1012 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1013
1da177e4
LT
1014config IRQ_CPU
1015 bool
1016
1017config IRQ_CPU_RM7K
1018 bool
1019
9267a30d
MSJ
1020config IRQ_MSP_SLP
1021 bool
1022
1023config IRQ_MSP_CIC
1024 bool
1025
8420fd00
AN
1026config IRQ_TXX9
1027 bool
1028
d5ab1a69
YY
1029config IRQ_GT641XX
1030 bool
1031
39b8d525
RB
1032config IRQ_GIC
1033 bool
1034
252161ec 1035config PCI_GT64XXX_PCI0
1da177e4 1036 bool
1da177e4 1037
9267a30d
MSJ
1038config NO_EXCEPT_FILL
1039 bool
1040
a83860c2
RB
1041config SOC_EMMA2RH
1042 bool
1043 select CEVT_R4K
1044 select CSRC_R4K
1045 select DMA_NONCOHERENT
1046 select IRQ_CPU
1047 select SWAP_IO_SPACE
1048 select SYS_HAS_CPU_R5500
1049 select SYS_SUPPORTS_32BIT_KERNEL
1050 select SYS_SUPPORTS_64BIT_KERNEL
1051 select SYS_SUPPORTS_BIG_ENDIAN
1052
edb6310a
DL
1053config SOC_PNX833X
1054 bool
1055 select CEVT_R4K
1056 select CSRC_R4K
1057 select IRQ_CPU
1058 select DMA_NONCOHERENT
1059 select SYS_HAS_CPU_MIPS32_R2
1060 select SYS_SUPPORTS_32BIT_KERNEL
1061 select SYS_SUPPORTS_LITTLE_ENDIAN
1062 select SYS_SUPPORTS_BIG_ENDIAN
edb6310a
DL
1063 select CPU_MIPSR2_IRQ_VI
1064
1065config SOC_PNX8335
1066 bool
1067 select SOC_PNX833X
1068
1da177e4
LT
1069config SWAP_IO_SPACE
1070 bool
1071
e2defae5
TB
1072config SGI_HAS_INDYDOG
1073 bool
1074
5b438c44
TB
1075config SGI_HAS_HAL2
1076 bool
1077
e2defae5
TB
1078config SGI_HAS_SEEQ
1079 bool
1080
1081config SGI_HAS_WD93
1082 bool
1083
1084config SGI_HAS_ZILOG
1085 bool
1086
1087config SGI_HAS_I8042
1088 bool
1089
1090config DEFAULT_SGI_PARTITION
1091 bool
1092
0e2794b0 1093config FW_ARC32
5e83d430
RB
1094 bool
1095
aaa9fad3 1096config FW_SNIPROM
231a35d3
TB
1097 bool
1098
1da177e4
LT
1099config BOOT_ELF32
1100 bool
1da177e4 1101
930beb5a
FF
1102config MIPS_L1_CACHE_SHIFT_4
1103 bool
1104
1105config MIPS_L1_CACHE_SHIFT_5
1106 bool
1107
1108config MIPS_L1_CACHE_SHIFT_6
1109 bool
1110
1111config MIPS_L1_CACHE_SHIFT_7
1112 bool
1113
1da177e4
LT
1114config MIPS_L1_CACHE_SHIFT
1115 int
a4c0201e
FF
1116 default "4" if MIPS_L1_CACHE_SHIFT_4
1117 default "5" if MIPS_L1_CACHE_SHIFT_5
1118 default "6" if MIPS_L1_CACHE_SHIFT_6
1119 default "7" if MIPS_L1_CACHE_SHIFT_7
1da177e4
LT
1120 default "5"
1121
1da177e4
LT
1122config HAVE_STD_PC_SERIAL_PORT
1123 bool
1124
1da177e4
LT
1125config ARC_CONSOLE
1126 bool "ARC console support"
e2defae5 1127 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1da177e4
LT
1128
1129config ARC_MEMORY
1130 bool
14b36af4 1131 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1da177e4
LT
1132 default y
1133
1134config ARC_PROMLIB
1135 bool
e2defae5 1136 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1da177e4
LT
1137 default y
1138
0e2794b0 1139config FW_ARC64
1da177e4 1140 bool
1da177e4
LT
1141
1142config BOOT_ELF64
1143 bool
1da177e4 1144
1da177e4
LT
1145menu "CPU selection"
1146
1147choice
1148 prompt "CPU type"
1149 default CPU_R4X00
1150
3702bba5
WZ
1151config CPU_LOONGSON2E
1152 bool "Loongson 2E"
1153 depends on SYS_HAS_CPU_LOONGSON2E
1154 select CPU_LOONGSON2
2a21c730
FZ
1155 help
1156 The Loongson 2E processor implements the MIPS III instruction set
1157 with many extensions.
1158
25985edc 1159 It has an internal FPGA northbridge, which is compatible to
6f7a251a
WZ
1160 bonito64.
1161
1162config CPU_LOONGSON2F
1163 bool "Loongson 2F"
1164 depends on SYS_HAS_CPU_LOONGSON2F
1165 select CPU_LOONGSON2
c197da91 1166 select ARCH_REQUIRE_GPIOLIB
6f7a251a
WZ
1167 help
1168 The Loongson 2F processor implements the MIPS III instruction set
1169 with many extensions.
1170
1171 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1172 have a similar programming interface with FPGA northbridge used in
1173 Loongson2E.
1174
ca585cf9
KC
1175config CPU_LOONGSON1B
1176 bool "Loongson 1B"
1177 depends on SYS_HAS_CPU_LOONGSON1B
1178 select CPU_LOONGSON1
1179 help
1180 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1181 release 2 instruction set.
1182
6e760c8d
RB
1183config CPU_MIPS32_R1
1184 bool "MIPS32 Release 1"
7cf8053b 1185 depends on SYS_HAS_CPU_MIPS32_R1
6e760c8d 1186 select CPU_HAS_PREFETCH
797798c1 1187 select CPU_SUPPORTS_32BIT_KERNEL
ec28f306 1188 select CPU_SUPPORTS_HIGHMEM
1e5f1caa 1189 help
5e83d430 1190 Choose this option to build a kernel for release 1 or later of the
1e5f1caa
RB
1191 MIPS32 architecture. Most modern embedded systems with a 32-bit
1192 MIPS processor are based on a MIPS32 processor. If you know the
1193 specific type of processor in your system, choose those that one
1194 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1195 Release 2 of the MIPS32 architecture is available since several
1196 years so chances are you even have a MIPS32 Release 2 processor
1197 in which case you should choose CPU_MIPS32_R2 instead for better
1198 performance.
1199
1200config CPU_MIPS32_R2
1201 bool "MIPS32 Release 2"
7cf8053b 1202 depends on SYS_HAS_CPU_MIPS32_R2
1e5f1caa 1203 select CPU_HAS_PREFETCH
797798c1 1204 select CPU_SUPPORTS_32BIT_KERNEL
ec28f306 1205 select CPU_SUPPORTS_HIGHMEM
2235a54d 1206 select HAVE_KVM
6e760c8d 1207 help
5e83d430 1208 Choose this option to build a kernel for release 2 or later of the
6e760c8d
RB
1209 MIPS32 architecture. Most modern embedded systems with a 32-bit
1210 MIPS processor are based on a MIPS32 processor. If you know the
1211 specific type of processor in your system, choose those that one
1212 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1213
1214config CPU_MIPS64_R1
1215 bool "MIPS64 Release 1"
7cf8053b 1216 depends on SYS_HAS_CPU_MIPS64_R1
797798c1 1217 select CPU_HAS_PREFETCH
ed5ba2fb
YY
1218 select CPU_SUPPORTS_32BIT_KERNEL
1219 select CPU_SUPPORTS_64BIT_KERNEL
ec28f306 1220 select CPU_SUPPORTS_HIGHMEM
9cffd154 1221 select CPU_SUPPORTS_HUGEPAGES
6e760c8d
RB
1222 help
1223 Choose this option to build a kernel for release 1 or later of the
1224 MIPS64 architecture. Many modern embedded systems with a 64-bit
1225 MIPS processor are based on a MIPS64 processor. If you know the
1226 specific type of processor in your system, choose those that one
1227 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1e5f1caa
RB
1228 Release 2 of the MIPS64 architecture is available since several
1229 years so chances are you even have a MIPS64 Release 2 processor
1230 in which case you should choose CPU_MIPS64_R2 instead for better
1231 performance.
1232
1233config CPU_MIPS64_R2
1234 bool "MIPS64 Release 2"
7cf8053b 1235 depends on SYS_HAS_CPU_MIPS64_R2
797798c1 1236 select CPU_HAS_PREFETCH
1e5f1caa
RB
1237 select CPU_SUPPORTS_32BIT_KERNEL
1238 select CPU_SUPPORTS_64BIT_KERNEL
ec28f306 1239 select CPU_SUPPORTS_HIGHMEM
9cffd154 1240 select CPU_SUPPORTS_HUGEPAGES
1e5f1caa
RB
1241 help
1242 Choose this option to build a kernel for release 2 or later of the
1243 MIPS64 architecture. Many modern embedded systems with a 64-bit
1244 MIPS processor are based on a MIPS64 processor. If you know the
1245 specific type of processor in your system, choose those that one
1246 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1da177e4
LT
1247
1248config CPU_R3000
1249 bool "R3000"
7cf8053b 1250 depends on SYS_HAS_CPU_R3000
f7062ddb 1251 select CPU_HAS_WB
ed5ba2fb 1252 select CPU_SUPPORTS_32BIT_KERNEL
797798c1 1253 select CPU_SUPPORTS_HIGHMEM
1da177e4
LT
1254 help
1255 Please make sure to pick the right CPU type. Linux/MIPS is not
1256 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1257 *not* work on R4000 machines and vice versa. However, since most
1258 of the supported machines have an R4000 (or similar) CPU, R4x00
1259 might be a safe bet. If the resulting kernel does not work,
1260 try to recompile with R3000.
1261
1262config CPU_TX39XX
1263 bool "R39XX"
7cf8053b 1264 depends on SYS_HAS_CPU_TX39XX
ed5ba2fb 1265 select CPU_SUPPORTS_32BIT_KERNEL
1da177e4
LT
1266
1267config CPU_VR41XX
1268 bool "R41xx"
7cf8053b 1269 depends on SYS_HAS_CPU_VR41XX
ed5ba2fb
YY
1270 select CPU_SUPPORTS_32BIT_KERNEL
1271 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4 1272 help
5e83d430 1273 The options selects support for the NEC VR4100 series of processors.
1da177e4
LT
1274 Only choose this option if you have one of these processors as a
1275 kernel built with this option will not run on any other type of
1276 processor or vice versa.
1277
1278config CPU_R4300
1279 bool "R4300"
7cf8053b 1280 depends on SYS_HAS_CPU_R4300
ed5ba2fb
YY
1281 select CPU_SUPPORTS_32BIT_KERNEL
1282 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4
LT
1283 help
1284 MIPS Technologies R4300-series processors.
1285
1286config CPU_R4X00
1287 bool "R4x00"
7cf8053b 1288 depends on SYS_HAS_CPU_R4X00
ed5ba2fb
YY
1289 select CPU_SUPPORTS_32BIT_KERNEL
1290 select CPU_SUPPORTS_64BIT_KERNEL
970d032f 1291 select CPU_SUPPORTS_HUGEPAGES
1da177e4
LT
1292 help
1293 MIPS Technologies R4000-series processors other than 4300, including
1294 the R4000, R4400, R4600, and 4700.
1295
1296config CPU_TX49XX
1297 bool "R49XX"
7cf8053b 1298 depends on SYS_HAS_CPU_TX49XX
de862b48 1299 select CPU_HAS_PREFETCH
ed5ba2fb
YY
1300 select CPU_SUPPORTS_32BIT_KERNEL
1301 select CPU_SUPPORTS_64BIT_KERNEL
970d032f 1302 select CPU_SUPPORTS_HUGEPAGES
1da177e4
LT
1303
1304config CPU_R5000
1305 bool "R5000"
7cf8053b 1306 depends on SYS_HAS_CPU_R5000
ed5ba2fb
YY
1307 select CPU_SUPPORTS_32BIT_KERNEL
1308 select CPU_SUPPORTS_64BIT_KERNEL
970d032f 1309 select CPU_SUPPORTS_HUGEPAGES
1da177e4
LT
1310 help
1311 MIPS Technologies R5000-series processors other than the Nevada.
1312
1313config CPU_R5432
1314 bool "R5432"
7cf8053b 1315 depends on SYS_HAS_CPU_R5432
5e83d430
RB
1316 select CPU_SUPPORTS_32BIT_KERNEL
1317 select CPU_SUPPORTS_64BIT_KERNEL
970d032f 1318 select CPU_SUPPORTS_HUGEPAGES
1da177e4 1319
542c1020
SK
1320config CPU_R5500
1321 bool "R5500"
1322 depends on SYS_HAS_CPU_R5500
542c1020
SK
1323 select CPU_SUPPORTS_32BIT_KERNEL
1324 select CPU_SUPPORTS_64BIT_KERNEL
9cffd154 1325 select CPU_SUPPORTS_HUGEPAGES
542c1020
SK
1326 help
1327 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1328 instruction set.
1329
1da177e4
LT
1330config CPU_R6000
1331 bool "R6000"
7cf8053b 1332 depends on SYS_HAS_CPU_R6000
ed5ba2fb 1333 select CPU_SUPPORTS_32BIT_KERNEL
1da177e4
LT
1334 help
1335 MIPS Technologies R6000 and R6000A series processors. Note these
c09b47d8 1336 processors are extremely rare and the support for them is incomplete.
1da177e4
LT
1337
1338config CPU_NEVADA
1339 bool "RM52xx"
7cf8053b 1340 depends on SYS_HAS_CPU_NEVADA
ed5ba2fb
YY
1341 select CPU_SUPPORTS_32BIT_KERNEL
1342 select CPU_SUPPORTS_64BIT_KERNEL
970d032f 1343 select CPU_SUPPORTS_HUGEPAGES
1da177e4
LT
1344 help
1345 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1346
1347config CPU_R8000
1348 bool "R8000"
7cf8053b 1349 depends on SYS_HAS_CPU_R8000
5e83d430 1350 select CPU_HAS_PREFETCH
ed5ba2fb 1351 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4
LT
1352 help
1353 MIPS Technologies R8000 processors. Note these processors are
1354 uncommon and the support for them is incomplete.
1355
1356config CPU_R10000
1357 bool "R10000"
7cf8053b 1358 depends on SYS_HAS_CPU_R10000
5e83d430 1359 select CPU_HAS_PREFETCH
ed5ba2fb
YY
1360 select CPU_SUPPORTS_32BIT_KERNEL
1361 select CPU_SUPPORTS_64BIT_KERNEL
797798c1 1362 select CPU_SUPPORTS_HIGHMEM
970d032f 1363 select CPU_SUPPORTS_HUGEPAGES
1da177e4
LT
1364 help
1365 MIPS Technologies R10000-series processors.
1366
1367config CPU_RM7000
1368 bool "RM7000"
7cf8053b 1369 depends on SYS_HAS_CPU_RM7000
5e83d430 1370 select CPU_HAS_PREFETCH
ed5ba2fb
YY
1371 select CPU_SUPPORTS_32BIT_KERNEL
1372 select CPU_SUPPORTS_64BIT_KERNEL
797798c1 1373 select CPU_SUPPORTS_HIGHMEM
970d032f 1374 select CPU_SUPPORTS_HUGEPAGES
1da177e4
LT
1375
1376config CPU_SB1
1377 bool "SB1"
7cf8053b 1378 depends on SYS_HAS_CPU_SB1
ed5ba2fb
YY
1379 select CPU_SUPPORTS_32BIT_KERNEL
1380 select CPU_SUPPORTS_64BIT_KERNEL
797798c1 1381 select CPU_SUPPORTS_HIGHMEM
970d032f 1382 select CPU_SUPPORTS_HUGEPAGES
0004a9df 1383 select WEAK_ORDERING
1da177e4 1384
a86c7f72
DD
1385config CPU_CAVIUM_OCTEON
1386 bool "Cavium Octeon processor"
5e683389 1387 depends on SYS_HAS_CPU_CAVIUM_OCTEON
7ee91de4 1388 select ARCH_SPARSEMEM_ENABLE
a86c7f72
DD
1389 select CPU_HAS_PREFETCH
1390 select CPU_SUPPORTS_64BIT_KERNEL
1391 select SYS_SUPPORTS_SMP
1392 select NR_CPUS_DEFAULT_16
1393 select WEAK_ORDERING
a86c7f72 1394 select CPU_SUPPORTS_HIGHMEM
9cffd154 1395 select CPU_SUPPORTS_HUGEPAGES
7ed18152
DD
1396 select LIBFDT
1397 select USE_OF
9296d94d 1398 select USB_EHCI_BIG_ENDIAN_MMIO
930beb5a
FF
1399 select SYS_HAS_DMA_OPS
1400 select MIPS_L1_CACHE_SHIFT_7
a86c7f72
DD
1401 help
1402 The Cavium Octeon processor is a highly integrated chip containing
1403 many ethernet hardware widgets for networking tasks. The processor
1404 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1405 Full details can be found at http://www.caviumnetworks.com.
1406
cd746249
JG
1407config CPU_BMIPS
1408 bool "Broadcom BMIPS"
1409 depends on SYS_HAS_CPU_BMIPS
1410 select CPU_MIPS32
fe7f62c0 1411 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
cd746249
JG
1412 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1413 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1414 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1415 select CPU_SUPPORTS_32BIT_KERNEL
1416 select DMA_NONCOHERENT
1417 select IRQ_CPU
1418 select SWAP_IO_SPACE
1419 select WEAK_ORDERING
c1c0c461 1420 select CPU_SUPPORTS_HIGHMEM
69aaf9c8 1421 select CPU_HAS_PREFETCH
c1c0c461 1422 help
fe7f62c0 1423 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
c1c0c461 1424
7f058e85
J
1425config CPU_XLR
1426 bool "Netlogic XLR SoC"
1427 depends on SYS_HAS_CPU_XLR
1428 select CPU_SUPPORTS_32BIT_KERNEL
1429 select CPU_SUPPORTS_64BIT_KERNEL
1430 select CPU_SUPPORTS_HIGHMEM
970d032f 1431 select CPU_SUPPORTS_HUGEPAGES
7f058e85
J
1432 select WEAK_ORDERING
1433 select WEAK_REORDERING_BEYOND_LLSC
7f058e85
J
1434 help
1435 Netlogic Microsystems XLR/XLS processors.
1c773ea4
J
1436
1437config CPU_XLP
1438 bool "Netlogic XLP SoC"
1439 depends on SYS_HAS_CPU_XLP
1440 select CPU_SUPPORTS_32BIT_KERNEL
1441 select CPU_SUPPORTS_64BIT_KERNEL
1442 select CPU_SUPPORTS_HIGHMEM
1c773ea4
J
1443 select WEAK_ORDERING
1444 select WEAK_REORDERING_BEYOND_LLSC
1445 select CPU_HAS_PREFETCH
d6504846 1446 select CPU_MIPSR2
1c773ea4
J
1447 help
1448 Netlogic Microsystems XLP processors.
1da177e4
LT
1449endchoice
1450
622844bf
WZ
1451if CPU_LOONGSON2F
1452config CPU_NOP_WORKAROUNDS
1453 bool
1454
1455config CPU_JUMP_WORKAROUNDS
1456 bool
1457
1458config CPU_LOONGSON2F_WORKAROUNDS
1459 bool "Loongson 2F Workarounds"
1460 default y
1461 select CPU_NOP_WORKAROUNDS
1462 select CPU_JUMP_WORKAROUNDS
1463 help
1464 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1465 require workarounds. Without workarounds the system may hang
1466 unexpectedly. For more information please refer to the gas
1467 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1468
1469 Loongson 2F03 and later have fixed these issues and no workarounds
1470 are needed. The workarounds have no significant side effect on them
1471 but may decrease the performance of the system so this option should
1472 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1473 systems.
1474
1475 If unsure, please say Y.
1476endif # CPU_LOONGSON2F
1477
1b93b3c3
WZ
1478config SYS_SUPPORTS_ZBOOT
1479 bool
1480 select HAVE_KERNEL_GZIP
1481 select HAVE_KERNEL_BZIP2
31c4867d 1482 select HAVE_KERNEL_LZ4
1b93b3c3 1483 select HAVE_KERNEL_LZMA
fe1d45e0 1484 select HAVE_KERNEL_LZO
4e23eb63 1485 select HAVE_KERNEL_XZ
1b93b3c3
WZ
1486
1487config SYS_SUPPORTS_ZBOOT_UART16550
1488 bool
1489 select SYS_SUPPORTS_ZBOOT
1490
3702bba5
WZ
1491config CPU_LOONGSON2
1492 bool
1493 select CPU_SUPPORTS_32BIT_KERNEL
1494 select CPU_SUPPORTS_64BIT_KERNEL
1495 select CPU_SUPPORTS_HIGHMEM
970d032f 1496 select CPU_SUPPORTS_HUGEPAGES
3702bba5 1497
ca585cf9
KC
1498config CPU_LOONGSON1
1499 bool
1500 select CPU_MIPS32
1501 select CPU_MIPSR2
1502 select CPU_HAS_PREFETCH
1503 select CPU_SUPPORTS_32BIT_KERNEL
1504 select CPU_SUPPORTS_HIGHMEM
1505
fe7f62c0 1506config CPU_BMIPS32_3300
04fa8bf7 1507 select SMP_UP if SMP
1bbb6c1b 1508 bool
cd746249
JG
1509
1510config CPU_BMIPS4350
1511 bool
1512 select SYS_SUPPORTS_SMP
1513 select SYS_SUPPORTS_HOTPLUG_CPU
1514
1515config CPU_BMIPS4380
1516 bool
1517 select SYS_SUPPORTS_SMP
1518 select SYS_SUPPORTS_HOTPLUG_CPU
1519
1520config CPU_BMIPS5000
1521 bool
cd746249
JG
1522 select MIPS_CPU_SCACHE
1523 select SYS_SUPPORTS_SMP
1524 select SYS_SUPPORTS_HOTPLUG_CPU
1bbb6c1b 1525
3702bba5 1526config SYS_HAS_CPU_LOONGSON2E
2a21c730
FZ
1527 bool
1528
6f7a251a
WZ
1529config SYS_HAS_CPU_LOONGSON2F
1530 bool
55045ff5
WZ
1531 select CPU_SUPPORTS_CPUFREQ
1532 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
22f1fdfd 1533 select CPU_SUPPORTS_UNCACHED_ACCELERATED
6f7a251a 1534
ca585cf9
KC
1535config SYS_HAS_CPU_LOONGSON1B
1536 bool
1537
7cf8053b
RB
1538config SYS_HAS_CPU_MIPS32_R1
1539 bool
1540
1541config SYS_HAS_CPU_MIPS32_R2
1542 bool
1543
1544config SYS_HAS_CPU_MIPS64_R1
1545 bool
1546
1547config SYS_HAS_CPU_MIPS64_R2
1548 bool
1549
1550config SYS_HAS_CPU_R3000
1551 bool
1552
1553config SYS_HAS_CPU_TX39XX
1554 bool
1555
1556config SYS_HAS_CPU_VR41XX
1557 bool
1558
1559config SYS_HAS_CPU_R4300
1560 bool
1561
1562config SYS_HAS_CPU_R4X00
1563 bool
1564
1565config SYS_HAS_CPU_TX49XX
1566 bool
1567
1568config SYS_HAS_CPU_R5000
1569 bool
1570
1571config SYS_HAS_CPU_R5432
1572 bool
1573
542c1020
SK
1574config SYS_HAS_CPU_R5500
1575 bool
1576
7cf8053b
RB
1577config SYS_HAS_CPU_R6000
1578 bool
1579
1580config SYS_HAS_CPU_NEVADA
1581 bool
1582
1583config SYS_HAS_CPU_R8000
1584 bool
1585
1586config SYS_HAS_CPU_R10000
1587 bool
1588
1589config SYS_HAS_CPU_RM7000
1590 bool
1591
7cf8053b
RB
1592config SYS_HAS_CPU_SB1
1593 bool
1594
5e683389
DD
1595config SYS_HAS_CPU_CAVIUM_OCTEON
1596 bool
1597
cd746249 1598config SYS_HAS_CPU_BMIPS
c1c0c461
KC
1599 bool
1600
fe7f62c0 1601config SYS_HAS_CPU_BMIPS32_3300
c1c0c461 1602 bool
cd746249 1603 select SYS_HAS_CPU_BMIPS
c1c0c461
KC
1604
1605config SYS_HAS_CPU_BMIPS4350
1606 bool
cd746249 1607 select SYS_HAS_CPU_BMIPS
c1c0c461
KC
1608
1609config SYS_HAS_CPU_BMIPS4380
1610 bool
cd746249 1611 select SYS_HAS_CPU_BMIPS
c1c0c461
KC
1612
1613config SYS_HAS_CPU_BMIPS5000
1614 bool
cd746249 1615 select SYS_HAS_CPU_BMIPS
c1c0c461 1616
7f058e85
J
1617config SYS_HAS_CPU_XLR
1618 bool
1619
1c773ea4
J
1620config SYS_HAS_CPU_XLP
1621 bool
1622
17099b11
RB
1623#
1624# CPU may reorder R->R, R->W, W->R, W->W
1625# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1626#
0004a9df
RB
1627config WEAK_ORDERING
1628 bool
17099b11
RB
1629
1630#
1631# CPU may reorder reads and writes beyond LL/SC
1632# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1633#
1634config WEAK_REORDERING_BEYOND_LLSC
1635 bool
5e83d430
RB
1636endmenu
1637
1638#
c09b47d8 1639# These two indicate any level of the MIPS32 and MIPS64 architecture
5e83d430
RB
1640#
1641config CPU_MIPS32
1642 bool
1643 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1644
1645config CPU_MIPS64
1646 bool
1647 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1648
1649#
c09b47d8 1650# These two indicate the revision of the architecture, either Release 1 or Release 2
5e83d430
RB
1651#
1652config CPU_MIPSR1
1653 bool
1654 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1655
1656config CPU_MIPSR2
1657 bool
a86c7f72 1658 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
5e83d430
RB
1659
1660config SYS_SUPPORTS_32BIT_KERNEL
1661 bool
1662config SYS_SUPPORTS_64BIT_KERNEL
1663 bool
1664config CPU_SUPPORTS_32BIT_KERNEL
1665 bool
1666config CPU_SUPPORTS_64BIT_KERNEL
1667 bool
55045ff5
WZ
1668config CPU_SUPPORTS_CPUFREQ
1669 bool
1670config CPU_SUPPORTS_ADDRWINCFG
1671 bool
9cffd154
DD
1672config CPU_SUPPORTS_HUGEPAGES
1673 bool
22f1fdfd
WZ
1674config CPU_SUPPORTS_UNCACHED_ACCELERATED
1675 bool
82622284
DD
1676config MIPS_PGD_C0_CONTEXT
1677 bool
d6504846 1678 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
5e83d430 1679
8192c9ea
DD
1680#
1681# Set to y for ptrace access to watch registers.
1682#
1683config HARDWARE_WATCHPOINTS
1684 bool
f839490a 1685 default y if CPU_MIPSR1 || CPU_MIPSR2
8192c9ea 1686
5e83d430
RB
1687menu "Kernel type"
1688
1689choice
5e83d430
RB
1690 prompt "Kernel code model"
1691 help
1692 You should only select this option if you have a workload that
1693 actually benefits from 64-bit processing or if your machine has
1694 large memory. You will only be presented a single option in this
1695 menu if your system does not support both 32-bit and 64-bit kernels.
1696
1697config 32BIT
1698 bool "32-bit kernel"
1699 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1700 select TRAD_SIGNALS
1701 help
1702 Select this option if you want to build a 32-bit kernel.
1703config 64BIT
1704 bool "64-bit kernel"
1705 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1706 help
1707 Select this option if you want to build a 64-bit kernel.
1708
1709endchoice
1710
2235a54d
SL
1711config KVM_GUEST
1712 bool "KVM Guest Kernel"
f2a5b1d7 1713 depends on BROKEN_ON_SMP
2235a54d
SL
1714 help
1715 Select this option if building a guest kernel for KVM (Trap & Emulate) mode
1716
1717config KVM_HOST_FREQ
1718 int "KVM Host Processor Frequency (MHz)"
1719 depends on KVM_GUEST
1720 default 500
1721 help
1722 Select this option if building a guest kernel for KVM to skip
1723 RTC emulation when determining guest CPU Frequency. Instead, the guest
1724 processor frequency is automatically derived from the host frequency.
1725
1da177e4
LT
1726choice
1727 prompt "Kernel page size"
1728 default PAGE_SIZE_4KB
1729
1730config PAGE_SIZE_4KB
1731 bool "4kB"
315fe625 1732 depends on !CPU_LOONGSON2
1da177e4
LT
1733 help
1734 This option select the standard 4kB Linux page size. On some
1735 R3000-family processors this is the only available page size. Using
1736 4kB page size will minimize memory consumption and is therefore
1737 recommended for low memory systems.
1738
1739config PAGE_SIZE_8KB
1740 bool "8kB"
7d60717e 1741 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
1da177e4
LT
1742 help
1743 Using 8kB page size will result in higher performance kernel at
1744 the price of higher memory consumption. This option is available
c52399be
RB
1745 only on R8000 and cnMIPS processors. Note that you will need a
1746 suitable Linux distribution to support this.
1da177e4
LT
1747
1748config PAGE_SIZE_16KB
1749 bool "16kB"
714bfad6 1750 depends on !CPU_R3000 && !CPU_TX39XX
1da177e4
LT
1751 help
1752 Using 16kB page size will result in higher performance kernel at
1753 the price of higher memory consumption. This option is available on
714bfad6
RB
1754 all non-R3000 family processors. Note that you will need a suitable
1755 Linux distribution to support this.
1da177e4 1756
c52399be
RB
1757config PAGE_SIZE_32KB
1758 bool "32kB"
1759 depends on CPU_CAVIUM_OCTEON
1760 help
1761 Using 32kB page size will result in higher performance kernel at
1762 the price of higher memory consumption. This option is available
1763 only on cnMIPS cores. Note that you will need a suitable Linux
1764 distribution to support this.
1765
1da177e4
LT
1766config PAGE_SIZE_64KB
1767 bool "64kB"
7d60717e 1768 depends on !CPU_R3000 && !CPU_TX39XX
1da177e4
LT
1769 help
1770 Using 64kB page size will result in higher performance kernel at
1771 the price of higher memory consumption. This option is available on
1772 all non-R3000 family processor. Not that at the time of this
714bfad6 1773 writing this option is still high experimental.
1da177e4
LT
1774
1775endchoice
1776
c9bace7c
DD
1777config FORCE_MAX_ZONEORDER
1778 int "Maximum zone order"
85f993b8
DD
1779 range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
1780 default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
1781 range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
1782 default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
1783 range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
1784 default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
c9bace7c
DD
1785 range 11 64
1786 default "11"
1787 help
1788 The kernel memory allocator divides physically contiguous memory
1789 blocks into "zones", where each zone is a power of two number of
1790 pages. This option selects the largest power of two that the kernel
1791 keeps in the memory allocator. If you need to allocate very large
1792 blocks of physically contiguous memory, then you may need to
1793 increase this value.
1794
1795 This config option is actually maximum order plus one. For example,
1796 a value of 11 means that the largest free memory block is 2^10 pages.
1797
1798 The page size is not necessarily 4KB. Keep this in mind
1799 when choosing a value for this option.
1800
0ab2b7d0
RG
1801config CEVT_GIC
1802 bool "Use GIC global counter for clock events"
1803 depends on IRQ_GIC && !(MIPS_SEAD3 || MIPS_MT_SMTC)
1804 help
1805 Use the GIC global counter for the clock events. The R4K clock
1806 event driver is always present, so if the platform ends up not
1807 detecting a GIC, it will fall back to the R4K timer for the
1808 generation of clock events.
1809
1da177e4
LT
1810config BOARD_SCACHE
1811 bool
1812
1813config IP22_CPU_SCACHE
1814 bool
1815 select BOARD_SCACHE
1816
9318c51a
CD
1817#
1818# Support for a MIPS32 / MIPS64 style S-caches
1819#
1820config MIPS_CPU_SCACHE
1821 bool
1822 select BOARD_SCACHE
930beb5a 1823 select MIPS_L1_CACHE_SHIFT_6
9318c51a 1824
1da177e4
LT
1825config R5000_CPU_SCACHE
1826 bool
1827 select BOARD_SCACHE
1828
1829config RM7000_CPU_SCACHE
1830 bool
1831 select BOARD_SCACHE
1832
1833config SIBYTE_DMA_PAGEOPS
1834 bool "Use DMA to clear/copy pages"
1835 depends on CPU_SB1
1836 help
1837 Instead of using the CPU to zero and copy pages, use a Data Mover
1838 channel. These DMA channels are otherwise unused by the standard
1839 SiByte Linux port. Seems to give a small performance benefit.
1840
1841config CPU_HAS_PREFETCH
c8094b53 1842 bool
1da177e4 1843
3165c846
FF
1844config CPU_GENERIC_DUMP_TLB
1845 bool
1846 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1847
91405eb6
FF
1848config CPU_R4K_FPU
1849 bool
1850 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1851
62cedc4f
FF
1852config CPU_R4K_CACHE_TLB
1853 bool
1854 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1855
340ee4b9
RB
1856choice
1857 prompt "MIPS MT options"
f41ae0b2
RB
1858
1859config MIPS_MT_DISABLED
c080faa5 1860 bool "Disable multithreading support"
f41ae0b2 1861 help
c080faa5
SH
1862 Use this option if your platform does not support the MT ASE
1863 which is hardware multithreading support. On systems without
1864 an MT-enabled processor, this will be the only option that is
1865 available in this menu.
340ee4b9 1866
59d6ab86
RB
1867config MIPS_MT_SMP
1868 bool "Use 1 TC on each available VPE for SMP"
f41ae0b2 1869 depends on SYS_SUPPORTS_MULTITHREADING
f7062ddb 1870 select CPU_MIPSR2_IRQ_VI
d725cf38 1871 select CPU_MIPSR2_IRQ_EI
c080faa5 1872 select SYNC_R4K
f41ae0b2 1873 select MIPS_MT
41c594ab 1874 select SMP
87353d8a 1875 select SMP_UP
c080faa5
SH
1876 select SYS_SUPPORTS_SMP
1877 select SYS_SUPPORTS_SCHED_SMT
399aaa25 1878 select MIPS_PERF_SHARED_TC_COUNTERS
f41ae0b2 1879 help
c080faa5
SH
1880 This is a kernel model which is known as SMVP. This is supported
1881 on cores with the MT ASE and uses the available VPEs to implement
1882 virtual processors which supports SMP. This is equivalent to the
1883 Intel Hyperthreading feature. For further information go to
1884 <http://www.imgtec.com/mips/mips-multithreading.asp>.
41c594ab 1885
59d6ab86 1886config MIPS_MT_SMTC
c080faa5 1887 bool "Use all TCs on all VPEs for SMP (DEPRECATED)"
59d6ab86 1888 depends on CPU_MIPS32_R2
f41ae0b2
RB
1889 depends on SYS_SUPPORTS_MULTITHREADING
1890 select CPU_MIPSR2_IRQ_VI
d725cf38 1891 select CPU_MIPSR2_IRQ_EI
f41ae0b2 1892 select MIPS_MT
340ee4b9 1893 select SMP
87353d8a 1894 select SMP_UP
c080faa5
SH
1895 select SYS_SUPPORTS_SMP
1896 select NR_CPUS_DEFAULT_8
f41ae0b2 1897 help
c080faa5
SH
1898 This is a kernel model which is known as SMTC. This is
1899 supported on cores with the MT ASE and presents all TCs
1900 available on all VPEs to support SMP. For further
1901 information see <http://www.linux-mips.org/wiki/34K#SMTC>.
340ee4b9 1902
340ee4b9
RB
1903endchoice
1904
f41ae0b2
RB
1905config MIPS_MT
1906 bool
1907
0ab7aefc
RB
1908config SCHED_SMT
1909 bool "SMT (multithreading) scheduler support"
1910 depends on SYS_SUPPORTS_SCHED_SMT
1911 default n
1912 help
1913 SMT scheduler support improves the CPU scheduler's decision making
1914 when dealing with MIPS MT enabled cores at a cost of slightly
1915 increased overhead in some places. If unsure say N here.
1916
1917config SYS_SUPPORTS_SCHED_SMT
1918 bool
1919
f41ae0b2
RB
1920config SYS_SUPPORTS_MULTITHREADING
1921 bool
1922
f088fc84
RB
1923config MIPS_MT_FPAFF
1924 bool "Dynamic FPU affinity for FP-intensive threads"
f088fc84 1925 default y
07cc0c9e
RB
1926 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1927
1928config MIPS_VPE_LOADER
1929 bool "VPE loader support."
704e6460 1930 depends on SYS_SUPPORTS_MULTITHREADING && MODULES
07cc0c9e
RB
1931 select CPU_MIPSR2_IRQ_VI
1932 select CPU_MIPSR2_IRQ_EI
07cc0c9e
RB
1933 select MIPS_MT
1934 help
1935 Includes a loader for loading an elf relocatable object
1936 onto another VPE and running it.
f088fc84 1937
17a1d523
DCZ
1938config MIPS_VPE_LOADER_CMP
1939 bool
1940 default "y"
1941 depends on MIPS_VPE_LOADER && MIPS_CMP
1942
1a2a6d7e
DCZ
1943config MIPS_VPE_LOADER_MT
1944 bool
1945 default "y"
1946 depends on MIPS_VPE_LOADER && !MIPS_CMP
1947
0db34215
KK
1948config MIPS_MT_SMTC_IM_BACKSTOP
1949 bool "Use per-TC register bits as backstop for inhibited IM bits"
1950 depends on MIPS_MT_SMTC
8531a35e 1951 default n
0db34215
KK
1952 help
1953 To support multiple TC microthreads acting as "CPUs" within
1954 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1955 during interrupt handling. To support legacy drivers and interrupt
1956 controller management code, SMTC has a "backstop" to track and
1957 if necessary restore the interrupt mask. This has some performance
8531a35e 1958 impact on interrupt service overhead.
0db34215 1959
f571eff0
KK
1960config MIPS_MT_SMTC_IRQAFF
1961 bool "Support IRQ affinity API"
1962 depends on MIPS_MT_SMTC
1963 default n
1964 help
1965 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1966 for SMTC Linux kernel. Requires platform support, of which
1967 an example can be found in the MIPS kernel i8259 and Malta
8531a35e
KK
1968 platform code. Adds some overhead to interrupt dispatch, and
1969 should be used only if you know what you are doing.
f571eff0 1970
e01402b1
RB
1971config MIPS_VPE_LOADER_TOM
1972 bool "Load VPE program into memory hidden from linux"
1973 depends on MIPS_VPE_LOADER
1974 default y
1975 help
1976 The loader can use memory that is present but has been hidden from
1977 Linux using the kernel command line option "mem=xxMB". It's up to
1978 you to ensure the amount you put in the option and the space your
1979 program requires is less or equal to the amount physically present.
1980
e01402b1 1981config MIPS_VPE_APSP_API
5e83d430
RB
1982 bool "Enable support for AP/SP API (RTLX)"
1983 depends on MIPS_VPE_LOADER
1984 help
e01402b1 1985
da615cf6
DCZ
1986config MIPS_VPE_APSP_API_CMP
1987 bool
1988 default "y"
1989 depends on MIPS_VPE_APSP_API && MIPS_CMP
1990
2c973ef0
DCZ
1991config MIPS_VPE_APSP_API_MT
1992 bool
1993 default "y"
1994 depends on MIPS_VPE_APSP_API && !MIPS_CMP
1995
4a16ff4c 1996config MIPS_CMP
c080faa5
SH
1997 bool "MIPS CMP support"
1998 depends on SYS_SUPPORTS_MIPS_CMP && MIPS_MT_SMP
eb9b5141 1999 select SYNC_R4K
4a16ff4c
RB
2000 select WEAK_ORDERING
2001 default n
2002 help
c080faa5 2003 Enable Coherency Manager processor (CMP) support.
4a16ff4c 2004
1da177e4
LT
2005config SB1_PASS_1_WORKAROUNDS
2006 bool
2007 depends on CPU_SB1_PASS_1
2008 default y
2009
2010config SB1_PASS_2_WORKAROUNDS
2011 bool
2012 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2013 default y
2014
2015config SB1_PASS_2_1_WORKAROUNDS
2016 bool
2017 depends on CPU_SB1 && CPU_SB1_PASS_2
2018 default y
2019
2235a54d 2020
1da177e4 2021config 64BIT_PHYS_ADDR
d806cb2b 2022 bool
1da177e4 2023
60ec6571 2024config ARCH_PHYS_ADDR_T_64BIT
2025 def_bool 64BIT_PHYS_ADDR
2026
9693a853
FBH
2027config CPU_HAS_SMARTMIPS
2028 depends on SYS_SUPPORTS_SMARTMIPS
2029 bool "Support for the SmartMIPS ASE"
2030 help
2031 SmartMIPS is a extension of the MIPS32 architecture aimed at
2032 increased security at both hardware and software level for
2033 smartcards. Enabling this option will allow proper use of the
2034 SmartMIPS instructions by Linux applications. However a kernel with
2035 this option will not work on a MIPS core without SmartMIPS core. If
2036 you don't know you probably don't have SmartMIPS and should say N
2037 here.
2038
bce86083
SH
2039config CPU_MICROMIPS
2040 depends on SYS_SUPPORTS_MICROMIPS
2041 bool "Build kernel using microMIPS ISA"
2042 help
2043 When this option is enabled the kernel will be built using the
2044 microMIPS ISA
2045
1da177e4 2046config CPU_HAS_WB
f7062ddb 2047 bool
e01402b1 2048
df0ac8a4
KC
2049config XKS01
2050 bool
2051
f41ae0b2
RB
2052#
2053# Vectored interrupt mode is an R2 feature
2054#
e01402b1 2055config CPU_MIPSR2_IRQ_VI
f41ae0b2 2056 bool
e01402b1 2057
f41ae0b2
RB
2058#
2059# Extended interrupt mode is an R2 feature
2060#
e01402b1 2061config CPU_MIPSR2_IRQ_EI
f41ae0b2 2062 bool
e01402b1 2063
1da177e4
LT
2064config CPU_HAS_SYNC
2065 bool
2066 depends on !CPU_R3000
2067 default y
2068
20d60d99
MR
2069#
2070# CPU non-features
2071#
2072config CPU_DADDI_WORKAROUNDS
2073 bool
2074
2075config CPU_R4000_WORKAROUNDS
2076 bool
2077 select CPU_R4400_WORKAROUNDS
2078
2079config CPU_R4400_WORKAROUNDS
2080 bool
2081
1da177e4
LT
2082#
2083# - Highmem only makes sense for the 32-bit kernel.
2084# - The current highmem code will only work properly on physically indexed
2085# caches such as R3000, SB1, R7000 or those that look like they're virtually
2086# indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2087# moment we protect the user and offer the highmem option only on machines
2088# where it's known to be safe. This will not offer highmem on a few systems
2089# such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2090# indexed CPUs but we're playing safe.
797798c1
RB
2091# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2092# know they might have memory configurations that could make use of highmem
2093# support.
1da177e4
LT
2094#
2095config HIGHMEM
2096 bool "High Memory Support"
797798c1
RB
2097 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
2098
2099config CPU_SUPPORTS_HIGHMEM
2100 bool
2101
2102config SYS_SUPPORTS_HIGHMEM
2103 bool
1da177e4 2104
9693a853
FBH
2105config SYS_SUPPORTS_SMARTMIPS
2106 bool
2107
a6a4834c
SH
2108config SYS_SUPPORTS_MICROMIPS
2109 bool
2110
b4819b59
YY
2111config ARCH_FLATMEM_ENABLE
2112 def_bool y
f133f22d 2113 depends on !NUMA && !CPU_LOONGSON2
b4819b59 2114
d8cb4e11
RB
2115config ARCH_DISCONTIGMEM_ENABLE
2116 bool
2117 default y if SGI_IP27
2118 help
3dde6ad8 2119 Say Y to support efficient handling of discontiguous physical memory,
d8cb4e11
RB
2120 for architectures which are either NUMA (Non-Uniform Memory Access)
2121 or have huge holes in the physical address space for other reasons.
2122 See <file:Documentation/vm/numa> for more.
2123
31473747
AN
2124config ARCH_SPARSEMEM_ENABLE
2125 bool
7de58fab 2126 select SPARSEMEM_STATIC
31473747 2127
d8cb4e11
RB
2128config NUMA
2129 bool "NUMA Support"
2130 depends on SYS_SUPPORTS_NUMA
2131 help
2132 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2133 Access). This option improves performance on systems with more
2134 than two nodes; on two node systems it is generally better to
2135 leave it disabled; on single node systems disable this option
2136 disabled.
2137
2138config SYS_SUPPORTS_NUMA
2139 bool
2140
c80d79d7
YG
2141config NODES_SHIFT
2142 int
2143 default "6"
2144 depends on NEED_MULTIPLE_NODES
2145
14f70012
DCZ
2146config HW_PERF_EVENTS
2147 bool "Enable hardware performance counter support for perf events"
4be3d2f3 2148 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
14f70012
DCZ
2149 default y
2150 help
2151 Enable hardware performance counter support for perf events. If
2152 disabled, perf events will use software events only.
2153
b4819b59
YY
2154source "mm/Kconfig"
2155
1da177e4
LT
2156config SMP
2157 bool "Multi-Processing support"
e73ea273
RB
2158 depends on SYS_SUPPORTS_SMP
2159 help
1da177e4 2160 This enables support for systems with more than one CPU. If you have
4a474157
RG
2161 a system with only one CPU, say N. If you have a system with more
2162 than one CPU, say Y.
1da177e4 2163
4a474157 2164 If you say N here, the kernel will run on uni- and multiprocessor
1da177e4
LT
2165 machines, but will use only one CPU of a multiprocessor machine. If
2166 you say Y here, the kernel will run on many, but not all,
4a474157 2167 uniprocessor machines. On a uniprocessor machine, the kernel
1da177e4
LT
2168 will run faster if you say N here.
2169
2170 People using multiprocessor machines who say Y here should also say
2171 Y to "Enhanced Real Time Clock Support", below.
2172
03502faa
AB
2173 See also the SMP-HOWTO available at
2174 <http://www.tldp.org/docs.html#howto>.
1da177e4
LT
2175
2176 If you don't know what to do here, say N.
2177
87353d8a
RB
2178config SMP_UP
2179 bool
2180
4a16ff4c
RB
2181config SYS_SUPPORTS_MIPS_CMP
2182 bool
2183
e73ea273
RB
2184config SYS_SUPPORTS_SMP
2185 bool
2186
130e2fb7
RB
2187config NR_CPUS_DEFAULT_4
2188 bool
2189
2190config NR_CPUS_DEFAULT_8
2191 bool
2192
2193config NR_CPUS_DEFAULT_16
2194 bool
2195
2196config NR_CPUS_DEFAULT_32
2197 bool
2198
2199config NR_CPUS_DEFAULT_64
2200 bool
2201
1da177e4
LT
2202config NR_CPUS
2203 int "Maximum number of CPUs (2-64)"
c5eaff3e 2204 range 2 64
1da177e4 2205 depends on SMP
130e2fb7
RB
2206 default "4" if NR_CPUS_DEFAULT_4
2207 default "8" if NR_CPUS_DEFAULT_8
2208 default "16" if NR_CPUS_DEFAULT_16
2209 default "32" if NR_CPUS_DEFAULT_32
2210 default "64" if NR_CPUS_DEFAULT_64
1da177e4
LT
2211 help
2212 This allows you to specify the maximum number of CPUs which this
2213 kernel will support. The maximum supported value is 32 for 32-bit
2214 kernel and 64 for 64-bit kernels; the minimum value which makes
72ede9b1
AN
2215 sense is 1 for Qemu (useful only for kernel debugging purposes)
2216 and 2 for all others.
1da177e4
LT
2217
2218 This is purely to save memory - each supported CPU adds
72ede9b1
AN
2219 approximately eight kilobytes to the kernel image. For best
2220 performance should round up your number of processors to the next
2221 power of two.
1da177e4 2222
399aaa25
AC
2223config MIPS_PERF_SHARED_TC_COUNTERS
2224 bool
2225
1723b4a3
AN
2226#
2227# Timer Interrupt Frequency Configuration
2228#
2229
2230choice
2231 prompt "Timer frequency"
2232 default HZ_250
2233 help
2234 Allows the configuration of the timer frequency.
2235
2236 config HZ_48
0f873585 2237 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
1723b4a3
AN
2238
2239 config HZ_100
2240 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2241
2242 config HZ_128
2243 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2244
2245 config HZ_250
2246 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2247
2248 config HZ_256
2249 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2250
2251 config HZ_1000
2252 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2253
2254 config HZ_1024
2255 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2256
2257endchoice
2258
2259config SYS_SUPPORTS_48HZ
2260 bool
2261
2262config SYS_SUPPORTS_100HZ
2263 bool
2264
2265config SYS_SUPPORTS_128HZ
2266 bool
2267
2268config SYS_SUPPORTS_250HZ
2269 bool
2270
2271config SYS_SUPPORTS_256HZ
2272 bool
2273
2274config SYS_SUPPORTS_1000HZ
2275 bool
2276
2277config SYS_SUPPORTS_1024HZ
2278 bool
2279
2280config SYS_SUPPORTS_ARBIT_HZ
2281 bool
2282 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2283 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2284 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2285 !SYS_SUPPORTS_1024HZ
2286
2287config HZ
2288 int
2289 default 48 if HZ_48
2290 default 100 if HZ_100
2291 default 128 if HZ_128
2292 default 250 if HZ_250
2293 default 256 if HZ_256
2294 default 1000 if HZ_1000
2295 default 1024 if HZ_1024
2296
e80de850 2297source "kernel/Kconfig.preempt"
1da177e4 2298
ea6e942b 2299config KEXEC
7d60717e 2300 bool "Kexec system call"
ea6e942b
AN
2301 help
2302 kexec is a system call that implements the ability to shutdown your
2303 current kernel, and to start another kernel. It is like a reboot
3dde6ad8 2304 but it is independent of the system firmware. And like a reboot
ea6e942b
AN
2305 you can start any kernel with it, not just Linux.
2306
01dd2fbf 2307 The name comes from the similarity to the exec system call.
ea6e942b
AN
2308
2309 It is an ongoing process to be certain the hardware in a machine
2310 is properly shutdown, so do not be surprised if this code does not
bf220695
GU
2311 initially work for you. As of this writing the exact hardware
2312 interface is strongly in flux, so no good recommendation can be
2313 made.
ea6e942b 2314
7aa1c8f4
RB
2315config CRASH_DUMP
2316 bool "Kernel crash dumps"
2317 help
2318 Generate crash dump after being started by kexec.
2319 This should be normally only set in special crash dump kernels
2320 which are loaded in the main kernel with kexec-tools into
2321 a specially reserved region and then later executed after
2322 a crash by kdump/kexec. The crash dump kernel must be compiled
2323 to a memory address not used by the main kernel or firmware using
2324 PHYSICAL_START.
2325
2326config PHYSICAL_START
2327 hex "Physical address where the kernel is loaded"
2328 default "0xffffffff84000000" if 64BIT
2329 default "0x84000000" if 32BIT
2330 depends on CRASH_DUMP
2331 help
2332 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2333 If you plan to use kernel for capturing the crash dump change
2334 this value to start of the reserved region (the "X" value as
2335 specified in the "crashkernel=YM@XM" command line boot parameter
2336 passed to the panic-ed kernel).
2337
ea6e942b
AN
2338config SECCOMP
2339 bool "Enable seccomp to safely compute untrusted bytecode"
293c5bd1 2340 depends on PROC_FS
ea6e942b
AN
2341 default y
2342 help
2343 This kernel feature is useful for number crunching applications
2344 that may need to compute untrusted bytecode during their
2345 execution. By using pipes or other transports made available to
2346 the process as file descriptors supporting the read/write
2347 syscalls, it's possible to isolate those applications in
2348 their own address space using seccomp. Once seccomp is
2349 enabled via /proc/<pid>/seccomp, it cannot be disabled
2350 and the task is only allowed to execute a few safe syscalls
2351 defined by each seccomp mode.
2352
2353 If unsure, say Y. Only embedded should say N here.
2354
597ce172 2355config MIPS_O32_FP64_SUPPORT
06e2e882 2356 bool "Support for O32 binaries using 64-bit FP (EXPERIMENTAL)"
597ce172 2357 depends on 32BIT || MIPS32_O32
597ce172
PB
2358 help
2359 When this is enabled, the kernel will support use of 64-bit floating
2360 point registers with binaries using the O32 ABI along with the
2361 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2362 32-bit MIPS systems this support is at the cost of increasing the
2363 size and complexity of the compiled FPU emulator. Thus if you are
2364 running a MIPS32 system and know that none of your userland binaries
2365 will require 64-bit floating point, you may wish to reduce the size
2366 of your kernel & potentially improve FP emulation performance by
2367 saying N here.
2368
06e2e882
PB
2369 Although binutils currently supports use of this flag the details
2370 concerning its effect upon the O32 ABI in userland are still being
2371 worked on. In order to avoid userland becoming dependant upon current
2372 behaviour before the details have been finalised, this option should
2373 be considered experimental and only enabled by those working upon
2374 said details.
2375
2376 If unsure, say N.
597ce172 2377
f2ffa5ab 2378config USE_OF
0b3e06fd 2379 bool
f2ffa5ab 2380 select OF
e6ce1324 2381 select OF_EARLY_FLATTREE
abd2363f 2382 select IRQ_DOMAIN
f2ffa5ab 2383
5e83d430
RB
2384endmenu
2385
1df0f0ff
AN
2386config LOCKDEP_SUPPORT
2387 bool
2388 default y
2389
2390config STACKTRACE_SUPPORT
2391 bool
2392 default y
2393
b6c3539b
RB
2394source "init/Kconfig"
2395
dc52ddc0
MH
2396source "kernel/Kconfig.freezer"
2397
1da177e4
LT
2398menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2399
5e83d430
RB
2400config HW_HAS_EISA
2401 bool
1da177e4
LT
2402config HW_HAS_PCI
2403 bool
2404
2405config PCI
2406 bool "Support for PCI controller"
2407 depends on HW_HAS_PCI
abb4ae46 2408 select PCI_DOMAINS
0f3b3956 2409 select NO_GENERIC_PCI_IOPORT_MAP
1da177e4
LT
2410 help
2411 Find out whether you have a PCI motherboard. PCI is the name of a
2412 bus system, i.e. the way the CPU talks to the other stuff inside
2413 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2414 say Y, otherwise N.
2415
1da177e4
LT
2416config PCI_DOMAINS
2417 bool
1da177e4
LT
2418
2419source "drivers/pci/Kconfig"
2420
3f787ca4
JG
2421source "drivers/pci/pcie/Kconfig"
2422
1da177e4
LT
2423#
2424# ISA support is now enabled via select. Too many systems still have the one
2425# or other ISA chip on the board that users don't know about so don't expect
2426# users to choose the right thing ...
2427#
2428config ISA
2429 bool
2430
2431config EISA
2432 bool "EISA support"
5e83d430 2433 depends on HW_HAS_EISA
1da177e4 2434 select ISA
aa414dff 2435 select GENERIC_ISA_DMA
1da177e4
LT
2436 ---help---
2437 The Extended Industry Standard Architecture (EISA) bus was
2438 developed as an open alternative to the IBM MicroChannel bus.
2439
2440 The EISA bus provided some of the features of the IBM MicroChannel
2441 bus while maintaining backward compatibility with cards made for
2442 the older ISA bus. The EISA bus saw limited use between 1988 and
2443 1995 when it was made obsolete by the PCI bus.
2444
2445 Say Y here if you are building a kernel for an EISA-based machine.
2446
2447 Otherwise, say N.
2448
2449source "drivers/eisa/Kconfig"
2450
2451config TC
2452 bool "TURBOchannel support"
2453 depends on MACH_DECSTATION
2454 help
50a23e6e
JM
2455 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2456 processors. TURBOchannel programming specifications are available
2457 at:
2458 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2459 and:
2460 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2461 Linux driver support status is documented at:
2462 <http://www.linux-mips.org/wiki/DECstation>
1da177e4 2463
1da177e4
LT
2464config MMU
2465 bool
2466 default y
2467
d865bea4
RB
2468config I8253
2469 bool
798778b8 2470 select CLKSRC_I8253
2d02612f 2471 select CLKEVT_I8253
9726b43a 2472 select MIPS_EXTERNAL_TIMER
d865bea4 2473
e05eb3f8
RB
2474config ZONE_DMA
2475 bool
2476
cce335ae
RB
2477config ZONE_DMA32
2478 bool
2479
1da177e4
LT
2480source "drivers/pcmcia/Kconfig"
2481
2482source "drivers/pci/hotplug/Kconfig"
2483
388b78ad 2484config RAPIDIO
56abde72 2485 tristate "RapidIO support"
388b78ad
AB
2486 depends on PCI
2487 default n
2488 help
2489 If you say Y here, the kernel will include drivers and
2490 infrastructure code to support RapidIO interconnect devices.
2491
2492source "drivers/rapidio/Kconfig"
2493
1da177e4
LT
2494endmenu
2495
2496menu "Executable file formats"
2497
2498source "fs/Kconfig.binfmt"
2499
2500config TRAD_SIGNALS
2501 bool
1da177e4 2502
1da177e4
LT
2503config MIPS32_COMPAT
2504 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
875d43e7 2505 depends on 64BIT
1da177e4
LT
2506 help
2507 Select this option if you want Linux/MIPS 32-bit binary
2508 compatibility. Since all software available for Linux/MIPS is
2509 currently 32-bit you should say Y here.
2510
2511config COMPAT
2512 bool
2513 depends on MIPS32_COMPAT
48b25c43 2514 select ARCH_WANT_OLD_COMPAT_IPC
1da177e4
LT
2515 default y
2516
05e43966
AN
2517config SYSVIPC_COMPAT
2518 bool
2519 depends on COMPAT && SYSVIPC
2520 default y
2521
1da177e4
LT
2522config MIPS32_O32
2523 bool "Kernel support for o32 binaries"
2524 depends on MIPS32_COMPAT
2525 help
2526 Select this option if you want to run o32 binaries. These are pure
2527 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2528 existing binaries are in this format.
2529
2530 If unsure, say Y.
2531
2532config MIPS32_N32
2533 bool "Kernel support for n32 binaries"
2534 depends on MIPS32_COMPAT
2535 help
2536 Select this option if you want to run n32 binaries. These are
2537 64-bit binaries using 32-bit quantities for addressing and certain
2538 data that would normally be 64-bit. They are used in special
2539 cases.
2540
2541 If unsure, say N.
2542
2543config BINFMT_ELF32
2544 bool
2545 default y if MIPS32_O32 || MIPS32_N32
2546
2116245e
RB
2547endmenu
2548
2549menu "Power management options"
2550
363c55ca
WZ
2551config ARCH_HIBERNATION_POSSIBLE
2552 def_bool y
3f5b3e17 2553 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
363c55ca 2554
f4cb5700
JB
2555config ARCH_SUSPEND_POSSIBLE
2556 def_bool y
3f5b3e17 2557 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
f4cb5700 2558
2116245e 2559source "kernel/power/Kconfig"
952fa954 2560
1da177e4
LT
2561endmenu
2562
7a998935
VK
2563config MIPS_EXTERNAL_TIMER
2564 bool
2565
2566if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
2567menu "CPU Power Management"
2568source "drivers/cpufreq/Kconfig"
2569endmenu
2570endif
9726b43a 2571
d5950b43
SR
2572source "net/Kconfig"
2573
1da177e4
LT
2574source "drivers/Kconfig"
2575
98cdee0e
RB
2576source "drivers/firmware/Kconfig"
2577
1da177e4
LT
2578source "fs/Kconfig"
2579
2580source "arch/mips/Kconfig.debug"
2581
2582source "security/Kconfig"
2583
2584source "crypto/Kconfig"
2585
2586source "lib/Kconfig"
2235a54d
SL
2587
2588source "arch/mips/kvm/Kconfig"