MIPS: Sibyte: Use hweight8 instead of counting bits
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / arch / mips / Kconfig
CommitLineData
1da177e4
LT
1config MIPS
2 bool
3 default y
f8ac0425 4 select HAVE_GENERIC_DMA_COHERENT
ec7748b5 5 select HAVE_IDE
42d4b839 6 select HAVE_OPROFILE
88547001 7 select HAVE_ARCH_KGDB
1da177e4
LT
8 # Horrible source of confusion. Die, die, die ...
9 select EMBEDDED
21a41faa 10 select RTC_LIB if !MACH_LOONGSON
1da177e4 11
875d43e7
RB
12mainmenu "Linux/MIPS Kernel Configuration"
13
1da177e4
LT
14menu "Machine selection"
15
5ac6da66
CL
16config ZONE_DMA
17 bool
5ac6da66 18
5e83d430
RB
19choice
20 prompt "System type"
21 default SGI_IP22
1da177e4 22
c3543e25
YY
23config MACH_ALCHEMY
24 bool "Alchemy processor based machines"
1b93b3c3 25 select SYS_SUPPORTS_ZBOOT
1da177e4 26
7ca5dc14
FF
27config AR7
28 bool "Texas Instruments AR7"
29 select BOOT_ELF32
30 select DMA_NONCOHERENT
31 select CEVT_R4K
32 select CSRC_R4K
33 select IRQ_CPU
34 select NO_EXCEPT_FILL
35 select SWAP_IO_SPACE
36 select SYS_HAS_CPU_MIPS32_R1
37 select SYS_HAS_EARLY_PRINTK
38 select SYS_SUPPORTS_32BIT_KERNEL
39 select SYS_SUPPORTS_LITTLE_ENDIAN
1b93b3c3 40 select SYS_SUPPORTS_ZBOOT_UART16550
7ca5dc14
FF
41 select GENERIC_GPIO
42 select GCD
43 select VLYNQ
44 help
45 Support for the Texas Instruments AR7 System-on-a-Chip
46 family: TNETD7100, 7200 and 7300.
47
35189fad 48config BASLER_EXCITE
be91589e 49 bool "Basler eXcite smart camera"
42f77542 50 select CEVT_R4K
940f6b48 51 select CSRC_R4K
35189fad
RB
52 select DMA_COHERENT
53 select HW_HAS_PCI
54 select IRQ_CPU
55 select IRQ_CPU_RM7K
56 select IRQ_CPU_RM9K
663c3d90 57 select MIPS_RM9122
35189fad
RB
58 select SYS_HAS_CPU_RM9000
59 select SYS_SUPPORTS_32BIT_KERNEL
35189fad
RB
60 select SYS_SUPPORTS_BIG_ENDIAN
61 help
62 The eXcite is a smart camera platform manufactured by
be91589e 63 Basler Vision Technologies AG.
35189fad 64
1c0c13eb
AJ
65config BCM47XX
66 bool "BCM47XX based boards"
42f77542 67 select CEVT_R4K
940f6b48 68 select CSRC_R4K
1c0c13eb
AJ
69 select DMA_NONCOHERENT
70 select HW_HAS_PCI
71 select IRQ_CPU
72 select SYS_HAS_CPU_MIPS32_R1
73 select SYS_SUPPORTS_32BIT_KERNEL
74 select SYS_SUPPORTS_LITTLE_ENDIAN
75 select SSB
76 select SSB_DRIVER_MIPS
2f02c15a 77 select SSB_DRIVER_EXTIF
b06f3e19 78 select SSB_EMBEDDED
2f02c15a 79 select SSB_PCICORE_HOSTMODE if PCI
1c0c13eb 80 select GENERIC_GPIO
25e5fb97
AJ
81 select SYS_HAS_EARLY_PRINTK
82 select CFE
1c0c13eb
AJ
83 help
84 Support for BCM47XX based boards
85
e7300d04
MB
86config BCM63XX
87 bool "Broadcom BCM63XX based boards"
88 select CEVT_R4K
89 select CSRC_R4K
90 select DMA_NONCOHERENT
91 select IRQ_CPU
92 select SYS_HAS_CPU_MIPS32_R1
93 select SYS_SUPPORTS_32BIT_KERNEL
94 select SYS_SUPPORTS_BIG_ENDIAN
95 select SYS_HAS_EARLY_PRINTK
96 select SWAP_IO_SPACE
97 select ARCH_REQUIRE_GPIOLIB
98 help
99 Support for BCM63XX based boards
100
1da177e4 101config MIPS_COBALT
3fa986fa 102 bool "Cobalt Server"
42f77542 103 select CEVT_R4K
940f6b48 104 select CSRC_R4K
1097c6ac 105 select CEVT_GT641XX
1da177e4
LT
106 select DMA_NONCOHERENT
107 select HW_HAS_PCI
d865bea4 108 select I8253
1da177e4
LT
109 select I8259
110 select IRQ_CPU
d5ab1a69 111 select IRQ_GT641XX
252161ec 112 select PCI_GT64XXX_PCI0
e25bfc92 113 select PCI
7cf8053b 114 select SYS_HAS_CPU_NEVADA
0a22e0d4 115 select SYS_HAS_EARLY_PRINTK
ed5ba2fb 116 select SYS_SUPPORTS_32BIT_KERNEL
0e8774b6 117 select SYS_SUPPORTS_64BIT_KERNEL
5e83d430 118 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4
LT
119
120config MACH_DECSTATION
3fa986fa 121 bool "DECstations"
1da177e4 122 select BOOT_ELF32
6457d9fc 123 select CEVT_DS1287
42f77542 124 select CEVT_R4K
4247417d 125 select CSRC_IOASIC
940f6b48 126 select CSRC_R4K
20d60d99
MR
127 select CPU_DADDI_WORKAROUNDS if 64BIT
128 select CPU_R4000_WORKAROUNDS if 64BIT
129 select CPU_R4400_WORKAROUNDS if 64BIT
1da177e4 130 select DMA_NONCOHERENT
d388d685 131 select NO_IOPORT
1da177e4 132 select IRQ_CPU
7cf8053b
RB
133 select SYS_HAS_CPU_R3000
134 select SYS_HAS_CPU_R4X00
ed5ba2fb
YY
135 select SYS_SUPPORTS_32BIT_KERNEL
136 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
5e83d430 137 select SYS_SUPPORTS_LITTLE_ENDIAN
1723b4a3
AN
138 select SYS_SUPPORTS_128HZ
139 select SYS_SUPPORTS_256HZ
140 select SYS_SUPPORTS_1024HZ
5e83d430 141 help
1da177e4
LT
142 This enables support for DEC's MIPS based workstations. For details
143 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
144 DECstation porting pages on <http://decstation.unix-ag.org/>.
145
146 If you have one of the following DECstation Models you definitely
147 want to choose R4xx0 for the CPU Type:
148
9308816c
RB
149 DECstation 5000/50
150 DECstation 5000/150
151 DECstation 5000/260
152 DECsystem 5900/260
1da177e4
LT
153
154 otherwise choose R3000.
155
5e83d430 156config MACH_JAZZ
3fa986fa 157 bool "Jazz family of machines"
5e83d430
RB
158 select ARC
159 select ARC32
160 select ARCH_MAY_HAVE_PC_FDC
42f77542 161 select CEVT_R4K
940f6b48 162 select CSRC_R4K
e2defae5 163 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
5e83d430 164 select GENERIC_ISA_DMA
ea202c63 165 select IRQ_CPU
d865bea4 166 select I8253
5e83d430
RB
167 select I8259
168 select ISA
7cf8053b 169 select SYS_HAS_CPU_R4X00
5e83d430
RB
170 select SYS_SUPPORTS_32BIT_KERNEL
171 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
1723b4a3 172 select SYS_SUPPORTS_100HZ
1da177e4 173 help
5e83d430
RB
174 This a family of machines based on the MIPS R4030 chipset which was
175 used by several vendors to build RISC/os and Windows NT workstations.
692105b8 176 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
5e83d430
RB
177 Olivetti M700-10 workstations.
178
1f21d2bd
BM
179config LASAT
180 bool "LASAT Networks platforms"
42f77542 181 select CEVT_R4K
940f6b48 182 select CSRC_R4K
1f21d2bd
BM
183 select DMA_NONCOHERENT
184 select SYS_HAS_EARLY_PRINTK
185 select HW_HAS_PCI
a5ccfe5c 186 select IRQ_CPU
1f21d2bd
BM
187 select PCI_GT64XXX_PCI0
188 select MIPS_NILE4
189 select R5000_CPU_SCACHE
190 select SYS_HAS_CPU_R5000
191 select SYS_SUPPORTS_32BIT_KERNEL
192 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
193 select SYS_SUPPORTS_LITTLE_ENDIAN
1f21d2bd 194
85749d24
WZ
195config MACH_LOONGSON
196 bool "Loongson family of machines"
1b93b3c3 197 select SYS_SUPPORTS_ZBOOT_UART16550
ade299d8 198 help
85749d24
WZ
199 This enables the support of Loongson family of machines.
200
201 Loongson is a family of general-purpose MIPS-compatible CPUs.
202 developed at Institute of Computing Technology (ICT),
203 Chinese Academy of Sciences (CAS) in the People's Republic
204 of China. The chief architect is Professor Weiwu Hu.
ade299d8 205
1da177e4 206config MIPS_MALTA
3fa986fa 207 bool "MIPS Malta board"
61ed242d 208 select ARCH_MAY_HAVE_PC_FDC
1da177e4 209 select BOOT_ELF32
fa71c960 210 select BOOT_RAW
42f77542 211 select CEVT_R4K
940f6b48 212 select CSRC_R4K
1da177e4
LT
213 select DMA_NONCOHERENT
214 select GENERIC_ISA_DMA
aa414dff 215 select IRQ_CPU
39b8d525 216 select IRQ_GIC
1da177e4 217 select HW_HAS_PCI
d865bea4 218 select I8253
1da177e4 219 select I8259
5e83d430
RB
220 select MIPS_BOARDS_GEN
221 select MIPS_BONITO64
9318c51a 222 select MIPS_CPU_SCACHE
252161ec 223 select PCI_GT64XXX_PCI0
5e83d430 224 select MIPS_MSC
1da177e4 225 select SWAP_IO_SPACE
7cf8053b
RB
226 select SYS_HAS_CPU_MIPS32_R1
227 select SYS_HAS_CPU_MIPS32_R2
228 select SYS_HAS_CPU_MIPS64_R1
229 select SYS_HAS_CPU_NEVADA
230 select SYS_HAS_CPU_RM7000
36a88530 231 select SYS_HAS_EARLY_PRINTK
ed5ba2fb
YY
232 select SYS_SUPPORTS_32BIT_KERNEL
233 select SYS_SUPPORTS_64BIT_KERNEL
5e83d430
RB
234 select SYS_SUPPORTS_BIG_ENDIAN
235 select SYS_SUPPORTS_LITTLE_ENDIAN
0365070f 236 select SYS_SUPPORTS_MIPS_CMP
f41ae0b2 237 select SYS_SUPPORTS_MULTITHREADING
9693a853 238 select SYS_SUPPORTS_SMARTMIPS
1b93b3c3 239 select SYS_SUPPORTS_ZBOOT
1da177e4 240 help
f638d197 241 This enables support for the MIPS Technologies Malta evaluation
1da177e4
LT
242 board.
243
5e83d430 244config MIPS_SIM
3fa986fa 245 bool 'MIPS simulator (MIPSsim)'
42f77542 246 select CEVT_R4K
940f6b48 247 select CSRC_R4K
1da177e4 248 select DMA_NONCOHERENT
36a88530 249 select SYS_HAS_EARLY_PRINTK
1da177e4 250 select IRQ_CPU
9267a30d 251 select BOOT_RAW
7cf8053b
RB
252 select SYS_HAS_CPU_MIPS32_R1
253 select SYS_HAS_CPU_MIPS32_R2
36a88530 254 select SYS_HAS_EARLY_PRINTK
ed5ba2fb 255 select SYS_SUPPORTS_32BIT_KERNEL
5e83d430 256 select SYS_SUPPORTS_BIG_ENDIAN
f6e2373a 257 select SYS_SUPPORTS_MULTITHREADING
5e83d430 258 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 259 help
5e83d430
RB
260 This option enables support for MIPS Technologies MIPSsim software
261 emulator.
1da177e4 262
a83860c2
RB
263config NEC_MARKEINS
264 bool "NEC EMMA2RH Mark-eins board"
265 select SOC_EMMA2RH
266 select HW_HAS_PCI
267 help
268 This enables support for the NEC Electronics Mark-eins boards.
ade299d8 269
5e83d430 270config MACH_VR41XX
74142d65 271 bool "NEC VR4100 series based machines"
42f77542 272 select CEVT_R4K
940f6b48 273 select CSRC_R4K
7cf8053b 274 select SYS_HAS_CPU_VR41XX
27fdd325 275 select ARCH_REQUIRE_GPIOLIB
5e83d430 276
edb6310a
DL
277config NXP_STB220
278 bool "NXP STB220 board"
279 select SOC_PNX833X
280 help
281 Support for NXP Semiconductors STB220 Development Board.
282
283config NXP_STB225
284 bool "NXP 225 board"
285 select SOC_PNX833X
286 select SOC_PNX8335
287 help
288 Support for NXP Semiconductors STB225 Development Board.
289
ade299d8 290config PNX8550_JBS
a92b0588 291 bool "NXP PNX8550 based JBS board"
ade299d8
YY
292 select PNX8550
293 select SYS_SUPPORTS_LITTLE_ENDIAN
294
295config PNX8550_STB810
a92b0588 296 bool "NXP PNX8550 based STB810 board"
ade299d8
YY
297 select PNX8550
298 select SYS_SUPPORTS_LITTLE_ENDIAN
299
9267a30d
MSJ
300config PMC_MSP
301 bool "PMC-Sierra MSP chipsets"
302 depends on EXPERIMENTAL
303 select DMA_NONCOHERENT
304 select SWAP_IO_SPACE
305 select NO_EXCEPT_FILL
306 select BOOT_RAW
307 select SYS_HAS_CPU_MIPS32_R1
308 select SYS_HAS_CPU_MIPS32_R2
309 select SYS_SUPPORTS_32BIT_KERNEL
310 select SYS_SUPPORTS_BIG_ENDIAN
9267a30d
MSJ
311 select IRQ_CPU
312 select SERIAL_8250
313 select SERIAL_8250_CONSOLE
314 help
315 This adds support for the PMC-Sierra family of Multi-Service
316 Processor System-On-A-Chips. These parts include a number
317 of integrated peripherals, interfaces and DSPs in addition to
318 a variety of MIPS cores.
319
5e83d430 320config PMC_YOSEMITE
3fa986fa 321 bool "PMC-Sierra Yosemite eval board"
42f77542 322 select CEVT_R4K
940f6b48 323 select CSRC_R4K
5e83d430
RB
324 select DMA_COHERENT
325 select HW_HAS_PCI
326 select IRQ_CPU
327 select IRQ_CPU_RM7K
328 select IRQ_CPU_RM9K
329 select SWAP_IO_SPACE
7cf8053b 330 select SYS_HAS_CPU_RM9000
36a88530 331 select SYS_HAS_EARLY_PRINTK
5e83d430
RB
332 select SYS_SUPPORTS_32BIT_KERNEL
333 select SYS_SUPPORTS_64BIT_KERNEL
334 select SYS_SUPPORTS_BIG_ENDIAN
335 select SYS_SUPPORTS_HIGHMEM
e73ea273 336 select SYS_SUPPORTS_SMP
5e83d430
RB
337 help
338 Yosemite is an evaluation board for the RM9000x2 processor
339 manufactured by PMC-Sierra.
1da177e4 340
1da177e4 341config SGI_IP22
3fa986fa 342 bool "SGI IP22 (Indy/Indigo2)"
1da177e4
LT
343 select ARC
344 select ARC32
345 select BOOT_ELF32
42f77542 346 select CEVT_R4K
940f6b48 347 select CSRC_R4K
e2defae5 348 select DEFAULT_SGI_PARTITION
1da177e4 349 select DMA_NONCOHERENT
5e83d430 350 select HW_HAS_EISA
d865bea4 351 select I8253
68de4803 352 select I8259
1da177e4
LT
353 select IP22_CPU_SCACHE
354 select IRQ_CPU
aa414dff 355 select GENERIC_ISA_DMA_SUPPORT_BROKEN
e2defae5
TB
356 select SGI_HAS_I8042
357 select SGI_HAS_INDYDOG
36e5c21d 358 select SGI_HAS_HAL2
e2defae5
TB
359 select SGI_HAS_SEEQ
360 select SGI_HAS_WD93
361 select SGI_HAS_ZILOG
1da177e4 362 select SWAP_IO_SPACE
7cf8053b
RB
363 select SYS_HAS_CPU_R4X00
364 select SYS_HAS_CPU_R5000
2b5e63f6
MM
365 #
366 # Disable EARLY_PRINTK for now since it leads to overwritten prom
367 # memory during early boot on some machines.
368 #
369 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
370 # for a more details discussion
371 #
372 # select SYS_HAS_EARLY_PRINTK
ed5ba2fb
YY
373 select SYS_SUPPORTS_32BIT_KERNEL
374 select SYS_SUPPORTS_64BIT_KERNEL
5e83d430 375 select SYS_SUPPORTS_BIG_ENDIAN
1da177e4
LT
376 help
377 This are the SGI Indy, Challenge S and Indigo2, as well as certain
378 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
379 that runs on these, say Y here.
380
381config SGI_IP27
3fa986fa 382 bool "SGI IP27 (Origin200/2000)"
1da177e4
LT
383 select ARC
384 select ARC64
5e83d430 385 select BOOT_ELF64
e2defae5 386 select DEFAULT_SGI_PARTITION
634286f1 387 select DMA_COHERENT
36a88530 388 select SYS_HAS_EARLY_PRINTK
1da177e4 389 select HW_HAS_PCI
130e2fb7 390 select NR_CPUS_DEFAULT_64
7cf8053b 391 select SYS_HAS_CPU_R10000
ed5ba2fb 392 select SYS_SUPPORTS_64BIT_KERNEL
5e83d430 393 select SYS_SUPPORTS_BIG_ENDIAN
d8cb4e11 394 select SYS_SUPPORTS_NUMA
1a5c5de1 395 select SYS_SUPPORTS_SMP
1da177e4
LT
396 help
397 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
398 workstations. To compile a Linux kernel that runs on these, say Y
399 here.
400
e2defae5
TB
401config SGI_IP28
402 bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
403 depends on EXPERIMENTAL
404 select ARC
405 select ARC64
406 select BOOT_ELF64
407 select CEVT_R4K
408 select CSRC_R4K
409 select DEFAULT_SGI_PARTITION
410 select DMA_NONCOHERENT
411 select GENERIC_ISA_DMA_SUPPORT_BROKEN
412 select IRQ_CPU
413 select HW_HAS_EISA
414 select I8253
415 select I8259
e2defae5
TB
416 select SGI_HAS_I8042
417 select SGI_HAS_INDYDOG
5b438c44 418 select SGI_HAS_HAL2
e2defae5
TB
419 select SGI_HAS_SEEQ
420 select SGI_HAS_WD93
421 select SGI_HAS_ZILOG
422 select SWAP_IO_SPACE
423 select SYS_HAS_CPU_R10000
2b5e63f6
MM
424 #
425 # Disable EARLY_PRINTK for now since it leads to overwritten prom
426 # memory during early boot on some machines.
427 #
428 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
429 # for a more details discussion
430 #
431 # select SYS_HAS_EARLY_PRINTK
e2defae5
TB
432 select SYS_SUPPORTS_64BIT_KERNEL
433 select SYS_SUPPORTS_BIG_ENDIAN
434 help
435 This is the SGI Indigo2 with R10000 processor. To compile a Linux
436 kernel that runs on these, say Y here.
437
1da177e4 438config SGI_IP32
cfd2afc0 439 bool "SGI IP32 (O2)"
1da177e4
LT
440 select ARC
441 select ARC32
442 select BOOT_ELF32
42f77542 443 select CEVT_R4K
940f6b48 444 select CSRC_R4K
1da177e4
LT
445 select DMA_NONCOHERENT
446 select HW_HAS_PCI
dd67b155 447 select IRQ_CPU
1da177e4
LT
448 select R5000_CPU_SCACHE
449 select RM7000_CPU_SCACHE
7cf8053b
RB
450 select SYS_HAS_CPU_R5000
451 select SYS_HAS_CPU_R10000 if BROKEN
452 select SYS_HAS_CPU_RM7000
dd2f18fe 453 select SYS_HAS_CPU_NEVADA
ed5ba2fb 454 select SYS_SUPPORTS_64BIT_KERNEL
23fbee9d 455 select SYS_SUPPORTS_BIG_ENDIAN
23fbee9d 456 help
5e83d430 457 If you want this kernel to run on SGI O2 workstation, say Y here.
1da177e4 458
ade299d8
YY
459config SIBYTE_CRHINE
460 bool "Sibyte BCM91120C-CRhine"
461 depends on EXPERIMENTAL
9a6dcea1
AI
462 select BOOT_ELF32
463 select DMA_COHERENT
ade299d8 464 select SIBYTE_BCM1120
9a6dcea1 465 select SWAP_IO_SPACE
7cf8053b 466 select SYS_HAS_CPU_SB1
9a6dcea1
AI
467 select SYS_SUPPORTS_BIG_ENDIAN
468 select SYS_SUPPORTS_LITTLE_ENDIAN
469
ade299d8
YY
470config SIBYTE_CARMEL
471 bool "Sibyte BCM91120x-Carmel"
472 depends on EXPERIMENTAL
5e83d430 473 select BOOT_ELF32
1da177e4 474 select DMA_COHERENT
ade299d8 475 select SIBYTE_BCM1120
5e83d430 476 select SWAP_IO_SPACE
7cf8053b 477 select SYS_HAS_CPU_SB1
81731f79 478 select SYS_SUPPORTS_BIG_ENDIAN
5e83d430 479 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 480
ade299d8
YY
481config SIBYTE_CRHONE
482 bool "Sibyte BCM91125C-CRhone"
5e83d430
RB
483 depends on EXPERIMENTAL
484 select BOOT_ELF32
485 select DMA_COHERENT
ade299d8 486 select SIBYTE_BCM1125
5e83d430 487 select SWAP_IO_SPACE
7cf8053b 488 select SYS_HAS_CPU_SB1
5e83d430 489 select SYS_SUPPORTS_BIG_ENDIAN
ade299d8 490 select SYS_SUPPORTS_HIGHMEM
5e83d430 491 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 492
5e83d430 493config SIBYTE_RHONE
3fa986fa 494 bool "Sibyte BCM91125E-Rhone"
5e83d430
RB
495 depends on EXPERIMENTAL
496 select BOOT_ELF32
497 select DMA_COHERENT
498 select SIBYTE_BCM1125H
499 select SWAP_IO_SPACE
7cf8053b 500 select SYS_HAS_CPU_SB1
5e83d430
RB
501 select SYS_SUPPORTS_BIG_ENDIAN
502 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 503
ade299d8
YY
504config SIBYTE_SWARM
505 bool "Sibyte BCM91250A-SWARM"
5e83d430 506 select BOOT_ELF32
26a940e2 507 select DMA_COHERENT
ade299d8
YY
508 select NR_CPUS_DEFAULT_2
509 select SIBYTE_SB1250
5e83d430 510 select SWAP_IO_SPACE
7cf8053b 511 select SYS_HAS_CPU_SB1
5e83d430 512 select SYS_SUPPORTS_BIG_ENDIAN
ade299d8 513 select SYS_SUPPORTS_HIGHMEM
e3ad1c23 514 select SYS_SUPPORTS_LITTLE_ENDIAN
cce335ae 515 select ZONE_DMA32 if 64BIT
e3ad1c23 516
ade299d8
YY
517config SIBYTE_LITTLESUR
518 bool "Sibyte BCM91250C2-LittleSur"
5e83d430
RB
519 depends on EXPERIMENTAL
520 select BOOT_ELF32
521 select DMA_COHERENT
130e2fb7 522 select NR_CPUS_DEFAULT_2
5e83d430
RB
523 select SIBYTE_SB1250
524 select SWAP_IO_SPACE
7cf8053b 525 select SYS_HAS_CPU_SB1
5e83d430
RB
526 select SYS_SUPPORTS_BIG_ENDIAN
527 select SYS_SUPPORTS_HIGHMEM
528 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 529
ade299d8
YY
530config SIBYTE_SENTOSA
531 bool "Sibyte BCM91250E-Sentosa"
5e83d430
RB
532 depends on EXPERIMENTAL
533 select BOOT_ELF32
534 select DMA_COHERENT
130e2fb7 535 select NR_CPUS_DEFAULT_2
5e83d430
RB
536 select SIBYTE_SB1250
537 select SWAP_IO_SPACE
7cf8053b 538 select SYS_HAS_CPU_SB1
5e83d430 539 select SYS_SUPPORTS_BIG_ENDIAN
5e83d430 540 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 541
ade299d8
YY
542config SIBYTE_BIGSUR
543 bool "Sibyte BCM91480B-BigSur"
5e83d430
RB
544 select BOOT_ELF32
545 select DMA_COHERENT
ade299d8 546 select NR_CPUS_DEFAULT_4
ade299d8 547 select SIBYTE_BCM1x80
5e83d430 548 select SWAP_IO_SPACE
7cf8053b 549 select SYS_HAS_CPU_SB1
5e83d430 550 select SYS_SUPPORTS_BIG_ENDIAN
651194f8 551 select SYS_SUPPORTS_HIGHMEM
5e83d430 552 select SYS_SUPPORTS_LITTLE_ENDIAN
cce335ae 553 select ZONE_DMA32 if 64BIT
1da177e4 554
14b36af4
TB
555config SNI_RM
556 bool "SNI RM200/300/400"
4a0312fc
TB
557 select ARC if CPU_LITTLE_ENDIAN
558 select ARC32 if CPU_LITTLE_ENDIAN
231a35d3 559 select SNIPROM if CPU_BIG_ENDIAN
61ed242d 560 select ARCH_MAY_HAVE_PC_FDC
1da177e4 561 select BOOT_ELF32
42f77542 562 select CEVT_R4K
940f6b48 563 select CSRC_R4K
e2defae5 564 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
1da177e4
LT
565 select DMA_NONCOHERENT
566 select GENERIC_ISA_DMA
5e83d430 567 select HW_HAS_EISA
1da177e4 568 select HW_HAS_PCI
c066a32a 569 select IRQ_CPU
d865bea4 570 select I8253
1da177e4
LT
571 select I8259
572 select ISA
4a0312fc 573 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
7cf8053b 574 select SYS_HAS_CPU_R4X00
4a0312fc 575 select SYS_HAS_CPU_R5000
c066a32a 576 select SYS_HAS_CPU_R10000
4a0312fc 577 select R5000_CPU_SCACHE
36a88530 578 select SYS_HAS_EARLY_PRINTK
ed5ba2fb
YY
579 select SYS_SUPPORTS_32BIT_KERNEL
580 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
4a0312fc 581 select SYS_SUPPORTS_BIG_ENDIAN
797798c1 582 select SYS_SUPPORTS_HIGHMEM
5e83d430 583 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 584 help
14b36af4
TB
585 The SNI RM200/300/400 are MIPS-based machines manufactured by
586 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
1da177e4
LT
587 Technology and now in turn merged with Fujitsu. Say Y here to
588 support this machine type.
589
edcaf1a6
AN
590config MACH_TX39XX
591 bool "Toshiba TX39 series based machines"
5e83d430 592
edcaf1a6
AN
593config MACH_TX49XX
594 bool "Toshiba TX49 series based machines"
5e83d430 595
73b4390f
RB
596config MIKROTIK_RB532
597 bool "Mikrotik RB532 boards"
598 select CEVT_R4K
599 select CSRC_R4K
600 select DMA_NONCOHERENT
73b4390f
RB
601 select HW_HAS_PCI
602 select IRQ_CPU
603 select SYS_HAS_CPU_MIPS32_R1
604 select SYS_SUPPORTS_32BIT_KERNEL
605 select SYS_SUPPORTS_LITTLE_ENDIAN
606 select SWAP_IO_SPACE
607 select BOOT_RAW
d888e25b 608 select ARCH_REQUIRE_GPIOLIB
73b4390f
RB
609 help
610 Support the Mikrotik(tm) RouterBoard 532 series,
611 based on the IDT RC32434 SoC.
612
ade299d8
YY
613config WR_PPMC
614 bool "Wind River PPMC board"
42f77542 615 select CEVT_R4K
940f6b48 616 select CSRC_R4K
ade299d8
YY
617 select IRQ_CPU
618 select BOOT_ELF32
619 select DMA_NONCOHERENT
620 select HW_HAS_PCI
621 select PCI_GT64XXX_PCI0
622 select SWAP_IO_SPACE
623 select SYS_HAS_CPU_MIPS32_R1
624 select SYS_HAS_CPU_MIPS32_R2
625 select SYS_HAS_CPU_MIPS64_R1
626 select SYS_HAS_CPU_NEVADA
627 select SYS_HAS_CPU_RM7000
628 select SYS_SUPPORTS_32BIT_KERNEL
629 select SYS_SUPPORTS_64BIT_KERNEL
630 select SYS_SUPPORTS_BIG_ENDIAN
631 select SYS_SUPPORTS_LITTLE_ENDIAN
632 help
633 This enables support for the Wind River MIPS32 4KC PPMC evaluation
634 board, which is based on GT64120 bridge chip.
635
a86c7f72 636config CAVIUM_OCTEON_SIMULATOR
c9d89d97 637 bool "Cavium Networks Octeon Simulator"
a86c7f72
DD
638 select CEVT_R4K
639 select 64BIT_PHYS_ADDR
640 select DMA_COHERENT
641 select SYS_SUPPORTS_64BIT_KERNEL
642 select SYS_SUPPORTS_BIG_ENDIAN
643 select SYS_SUPPORTS_HIGHMEM
773cb77d 644 select SYS_SUPPORTS_HOTPLUG_CPU
5e683389 645 select SYS_HAS_CPU_CAVIUM_OCTEON
a86c7f72
DD
646 help
647 The Octeon simulator is software performance model of the Cavium
648 Octeon Processor. It supports simulating Octeon processors on x86
649 hardware.
650
651config CAVIUM_OCTEON_REFERENCE_BOARD
c9d89d97 652 bool "Cavium Networks Octeon reference board"
a86c7f72
DD
653 select CEVT_R4K
654 select 64BIT_PHYS_ADDR
655 select DMA_COHERENT
656 select SYS_SUPPORTS_64BIT_KERNEL
657 select SYS_SUPPORTS_BIG_ENDIAN
658 select SYS_SUPPORTS_HIGHMEM
773cb77d 659 select SYS_SUPPORTS_HOTPLUG_CPU
a86c7f72 660 select SYS_HAS_EARLY_PRINTK
5e683389 661 select SYS_HAS_CPU_CAVIUM_OCTEON
a86c7f72 662 select SWAP_IO_SPACE
e8635b48
DD
663 select HW_HAS_PCI
664 select ARCH_SUPPORTS_MSI
a86c7f72
DD
665 help
666 This option supports all of the Octeon reference boards from Cavium
667 Networks. It builds a kernel that dynamically determines the Octeon
668 CPU type and supports all known board reference implementations.
669 Some of the supported boards are:
670 EBT3000
671 EBH3000
672 EBH3100
673 Thunder
674 Kodama
675 Hikari
676 Say Y here for most Octeon reference boards.
677
5e83d430 678endchoice
1da177e4 679
e8c7c482 680source "arch/mips/alchemy/Kconfig"
9c746edb 681source "arch/mips/basler/excite/Kconfig"
e7300d04 682source "arch/mips/bcm63xx/Kconfig"
5e83d430 683source "arch/mips/jazz/Kconfig"
1f21d2bd 684source "arch/mips/lasat/Kconfig"
5e83d430 685source "arch/mips/pmc-sierra/Kconfig"
29c48699 686source "arch/mips/sgi-ip27/Kconfig"
38b18f72 687source "arch/mips/sibyte/Kconfig"
22b1d707 688source "arch/mips/txx9/Kconfig"
5e83d430 689source "arch/mips/vr41xx/Kconfig"
a86c7f72 690source "arch/mips/cavium-octeon/Kconfig"
85749d24 691source "arch/mips/loongson/Kconfig"
38b18f72 692
5e83d430
RB
693endmenu
694
1da177e4
LT
695config RWSEM_GENERIC_SPINLOCK
696 bool
697 default y
698
699config RWSEM_XCHGADD_ALGORITHM
700 bool
701
f0d1b0b3
DH
702config ARCH_HAS_ILOG2_U32
703 bool
704 default n
705
706config ARCH_HAS_ILOG2_U64
707 bool
708 default n
709
00a58253
RB
710config ARCH_SUPPORTS_OPROFILE
711 bool
712 default y if !MIPS_MT_SMTC
713
3c9ee7ef
AM
714config GENERIC_FIND_NEXT_BIT
715 bool
716 default y
717
718config GENERIC_HWEIGHT
719 bool
720 default y
721
1da177e4
LT
722config GENERIC_CALIBRATE_DELAY
723 bool
724 default y
725
7bcf7717
RB
726config GENERIC_CLOCKEVENTS
727 bool
728 default y
729
8db02010
RB
730config GENERIC_TIME
731 bool
732 default y
733
f5ff0a28
RB
734config GENERIC_CMOS_UPDATE
735 bool
736 default y
737
ae1e9130 738config SCHED_OMIT_FRAME_POINTER
1cc89038
AN
739 bool
740 default y
741
e77c232c 742config GENERIC_HARDIRQS_NO__DO_IRQ
c87e0909 743 def_bool y
e77c232c 744
1da177e4
LT
745#
746# Select some configuration options automatically based on user selections.
747#
748config ARC
749 bool
1da177e4 750
61ed242d
RB
751config ARCH_MAY_HAVE_PC_FDC
752 bool
753
9267a30d
MSJ
754config BOOT_RAW
755 bool
756
217dd11e
RB
757config CEVT_BCM1480
758 bool
759
6457d9fc
YY
760config CEVT_DS1287
761 bool
762
1097c6ac
YY
763config CEVT_GT641XX
764 bool
765
779e7d41
ML
766config CEVT_R4K_LIB
767 bool
768
42f77542 769config CEVT_R4K
779e7d41 770 select CEVT_R4K_LIB
42f77542
RB
771 bool
772
217dd11e
RB
773config CEVT_SB1250
774 bool
775
229f773e
AN
776config CEVT_TXX9
777 bool
778
217dd11e
RB
779config CSRC_BCM1480
780 bool
781
4247417d
YY
782config CSRC_IOASIC
783 bool
784
779e7d41
ML
785config CSRC_R4K_LIB
786 bool
787
940f6b48 788config CSRC_R4K
779e7d41 789 select CSRC_R4K_LIB
940f6b48
RB
790 bool
791
217dd11e
RB
792config CSRC_SB1250
793 bool
794
a9aec7fe
AN
795config GPIO_TXX9
796 select GENERIC_GPIO
7444a72e 797 select ARCH_REQUIRE_GPIOLIB
a9aec7fe
AN
798 bool
799
df78b5c8
AJ
800config CFE
801 bool
802
4ce588cd 803config DMA_COHERENT
1da177e4
LT
804 bool
805
4ce588cd
RB
806config DMA_NONCOHERENT
807 bool
808 select DMA_NEED_PCI_MAP_STATE
809
810config DMA_NEED_PCI_MAP_STATE
1da177e4
LT
811 bool
812
813config EARLY_PRINTK
36a88530
RB
814 bool "Early printk" if EMBEDDED && DEBUG_KERNEL
815 depends on SYS_HAS_EARLY_PRINTK
816 default y
817 help
818 This option enables special console drivers which allow the kernel
819 to print messages very early in the bootup process.
820
821 This is useful for kernel debugging when your machine crashes very
490dcc4d
RD
822 early before the console code is initialized. For normal operation,
823 it is not recommended because it looks ugly on some machines and
824 doesn't cooperate with an X server. You should normally say N here,
36a88530
RB
825 unless you want to debug such a crash.
826
827config SYS_HAS_EARLY_PRINTK
1da177e4 828 bool
1da177e4 829
dbb74540 830config HOTPLUG_CPU
1b2bc75c
RB
831 bool "Support for hot-pluggable CPUs"
832 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
833 help
834 Say Y here to allow turning CPUs off and on. CPUs can be
835 controlled through /sys/devices/system/cpu.
836 (Note: power management support will enable this option
837 automatically on SMP systems. )
838 Say N if you want to disable CPU hotplug.
839
840config SYS_SUPPORTS_HOTPLUG_CPU
dbb74540 841 bool
dbb74540 842
1da177e4
LT
843config I8259
844 bool
1da177e4 845
1da177e4
LT
846config MIPS_BONITO64
847 bool
1da177e4
LT
848
849config MIPS_MSC
850 bool
1da177e4 851
1f21d2bd
BM
852config MIPS_NILE4
853 bool
854
1da177e4
LT
855config MIPS_DISABLE_OBSOLETE_IDE
856 bool
857
39b8d525
RB
858config SYNC_R4K
859 bool
860
d388d685
MR
861config NO_IOPORT
862 def_bool n
863
8313da30
RB
864config GENERIC_ISA_DMA
865 bool
866 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
867
aa414dff
RB
868config GENERIC_ISA_DMA_SUPPORT_BROKEN
869 bool
8313da30 870 select GENERIC_ISA_DMA
aa414dff 871
09663335
YY
872config GENERIC_GPIO
873 bool
874
5e83d430 875#
3cb2fccc 876# Endianess selection. Sufficiently obscure so many users don't know what to
5e83d430
RB
877# answer,so we try hard to limit the available choices. Also the use of a
878# choice statement should be more obvious to the user.
879#
880choice
881 prompt "Endianess selection"
1da177e4
LT
882 help
883 Some MIPS machines can be configured for either little or big endian
5e83d430 884 byte order. These modes require different kernels and a different
3cb2fccc 885 Linux distribution. In general there is one preferred byteorder for a
5e83d430 886 particular system but some systems are just as commonly used in the
3dde6ad8 887 one or the other endianness.
5e83d430
RB
888
889config CPU_BIG_ENDIAN
890 bool "Big endian"
891 depends on SYS_SUPPORTS_BIG_ENDIAN
892
893config CPU_LITTLE_ENDIAN
894 bool "Little endian"
895 depends on SYS_SUPPORTS_LITTLE_ENDIAN
896 help
897
898endchoice
899
2116245e
RB
900config SYS_SUPPORTS_APM_EMULATION
901 bool
902
5e83d430
RB
903config SYS_SUPPORTS_BIG_ENDIAN
904 bool
905
906config SYS_SUPPORTS_LITTLE_ENDIAN
907 bool
1da177e4 908
9cffd154
DD
909config SYS_SUPPORTS_HUGETLBFS
910 bool
911 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
912 default y
913
1da177e4
LT
914config IRQ_CPU
915 bool
916
917config IRQ_CPU_RM7K
918 bool
919
5e83d430
RB
920config IRQ_CPU_RM9K
921 bool
922
9267a30d
MSJ
923config IRQ_MSP_SLP
924 bool
925
926config IRQ_MSP_CIC
927 bool
928
8420fd00
AN
929config IRQ_TXX9
930 bool
931
d5ab1a69
YY
932config IRQ_GT641XX
933 bool
934
39b8d525
RB
935config IRQ_GIC
936 bool
937
a86c7f72
DD
938config IRQ_CPU_OCTEON
939 bool
940
1da177e4
LT
941config MIPS_BOARDS_GEN
942 bool
1da177e4 943
252161ec 944config PCI_GT64XXX_PCI0
1da177e4 945 bool
1da177e4 946
9267a30d
MSJ
947config NO_EXCEPT_FILL
948 bool
949
663c3d90 950config MIPS_RM9122
951 bool
952 select SERIAL_RM9000
663c3d90 953
a83860c2
RB
954config SOC_EMMA2RH
955 bool
956 select CEVT_R4K
957 select CSRC_R4K
958 select DMA_NONCOHERENT
959 select IRQ_CPU
960 select SWAP_IO_SPACE
961 select SYS_HAS_CPU_R5500
962 select SYS_SUPPORTS_32BIT_KERNEL
963 select SYS_SUPPORTS_64BIT_KERNEL
964 select SYS_SUPPORTS_BIG_ENDIAN
965
edb6310a
DL
966config SOC_PNX833X
967 bool
968 select CEVT_R4K
969 select CSRC_R4K
970 select IRQ_CPU
971 select DMA_NONCOHERENT
972 select SYS_HAS_CPU_MIPS32_R2
973 select SYS_SUPPORTS_32BIT_KERNEL
974 select SYS_SUPPORTS_LITTLE_ENDIAN
975 select SYS_SUPPORTS_BIG_ENDIAN
edb6310a
DL
976 select GENERIC_GPIO
977 select CPU_MIPSR2_IRQ_VI
978
979config SOC_PNX8335
980 bool
981 select SOC_PNX833X
982
bdf21b18
PP
983config PNX8550
984 bool
985 select SOC_PNX8550
986
987config SOC_PNX8550
988 bool
bdf21b18
PP
989 select DMA_NONCOHERENT
990 select HW_HAS_PCI
b8c2a77c 991 select SYS_HAS_CPU_MIPS32_R1
36a88530 992 select SYS_HAS_EARLY_PRINTK
7cf8053b 993 select SYS_SUPPORTS_32BIT_KERNEL
4ead1681 994 select GENERIC_GPIO
bdf21b18 995
1da177e4
LT
996config SWAP_IO_SPACE
997 bool
998
663c3d90 999config SERIAL_RM9000
1000 bool
1001
e2defae5
TB
1002config SGI_HAS_INDYDOG
1003 bool
1004
5b438c44
TB
1005config SGI_HAS_HAL2
1006 bool
1007
e2defae5
TB
1008config SGI_HAS_SEEQ
1009 bool
1010
1011config SGI_HAS_WD93
1012 bool
1013
1014config SGI_HAS_ZILOG
1015 bool
1016
1017config SGI_HAS_I8042
1018 bool
1019
1020config DEFAULT_SGI_PARTITION
1021 bool
1022
5e83d430
RB
1023config ARC32
1024 bool
1025
231a35d3
TB
1026config SNIPROM
1027 bool
1028
1da177e4
LT
1029config BOOT_ELF32
1030 bool
1da177e4
LT
1031
1032config MIPS_L1_CACHE_SHIFT
1033 int
c7088755 1034 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
0db2b74e 1035 default "6" if MIPS_CPU_SCACHE
a86c7f72 1036 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1da177e4
LT
1037 default "5"
1038
1da177e4
LT
1039config HAVE_STD_PC_SERIAL_PORT
1040 bool
1041
1da177e4
LT
1042config ARC_CONSOLE
1043 bool "ARC console support"
e2defae5 1044 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1da177e4
LT
1045
1046config ARC_MEMORY
1047 bool
14b36af4 1048 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1da177e4
LT
1049 default y
1050
1051config ARC_PROMLIB
1052 bool
e2defae5 1053 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1da177e4
LT
1054 default y
1055
1056config ARC64
1057 bool
1da177e4
LT
1058
1059config BOOT_ELF64
1060 bool
1da177e4 1061
1da177e4
LT
1062menu "CPU selection"
1063
1064choice
1065 prompt "CPU type"
1066 default CPU_R4X00
1067
3702bba5
WZ
1068config CPU_LOONGSON2E
1069 bool "Loongson 2E"
1070 depends on SYS_HAS_CPU_LOONGSON2E
1071 select CPU_LOONGSON2
2a21c730
FZ
1072 help
1073 The Loongson 2E processor implements the MIPS III instruction set
1074 with many extensions.
1075
6f7a251a
WZ
1076 It has an internal FPGA northbridge, which is compatiable to
1077 bonito64.
1078
1079config CPU_LOONGSON2F
1080 bool "Loongson 2F"
1081 depends on SYS_HAS_CPU_LOONGSON2F
1082 select CPU_LOONGSON2
1083 help
1084 The Loongson 2F processor implements the MIPS III instruction set
1085 with many extensions.
1086
1087 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1088 have a similar programming interface with FPGA northbridge used in
1089 Loongson2E.
1090
6e760c8d
RB
1091config CPU_MIPS32_R1
1092 bool "MIPS32 Release 1"
7cf8053b 1093 depends on SYS_HAS_CPU_MIPS32_R1
6e760c8d 1094 select CPU_HAS_PREFETCH
797798c1 1095 select CPU_SUPPORTS_32BIT_KERNEL
ec28f306 1096 select CPU_SUPPORTS_HIGHMEM
1e5f1caa 1097 help
5e83d430 1098 Choose this option to build a kernel for release 1 or later of the
1e5f1caa
RB
1099 MIPS32 architecture. Most modern embedded systems with a 32-bit
1100 MIPS processor are based on a MIPS32 processor. If you know the
1101 specific type of processor in your system, choose those that one
1102 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1103 Release 2 of the MIPS32 architecture is available since several
1104 years so chances are you even have a MIPS32 Release 2 processor
1105 in which case you should choose CPU_MIPS32_R2 instead for better
1106 performance.
1107
1108config CPU_MIPS32_R2
1109 bool "MIPS32 Release 2"
7cf8053b 1110 depends on SYS_HAS_CPU_MIPS32_R2
1e5f1caa 1111 select CPU_HAS_PREFETCH
797798c1 1112 select CPU_SUPPORTS_32BIT_KERNEL
ec28f306 1113 select CPU_SUPPORTS_HIGHMEM
6e760c8d 1114 help
5e83d430 1115 Choose this option to build a kernel for release 2 or later of the
6e760c8d
RB
1116 MIPS32 architecture. Most modern embedded systems with a 32-bit
1117 MIPS processor are based on a MIPS32 processor. If you know the
1118 specific type of processor in your system, choose those that one
1119 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1120
1121config CPU_MIPS64_R1
1122 bool "MIPS64 Release 1"
7cf8053b 1123 depends on SYS_HAS_CPU_MIPS64_R1
797798c1 1124 select CPU_HAS_PREFETCH
ed5ba2fb
YY
1125 select CPU_SUPPORTS_32BIT_KERNEL
1126 select CPU_SUPPORTS_64BIT_KERNEL
ec28f306 1127 select CPU_SUPPORTS_HIGHMEM
9cffd154 1128 select CPU_SUPPORTS_HUGEPAGES
6e760c8d
RB
1129 help
1130 Choose this option to build a kernel for release 1 or later of the
1131 MIPS64 architecture. Many modern embedded systems with a 64-bit
1132 MIPS processor are based on a MIPS64 processor. If you know the
1133 specific type of processor in your system, choose those that one
1134 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1e5f1caa
RB
1135 Release 2 of the MIPS64 architecture is available since several
1136 years so chances are you even have a MIPS64 Release 2 processor
1137 in which case you should choose CPU_MIPS64_R2 instead for better
1138 performance.
1139
1140config CPU_MIPS64_R2
1141 bool "MIPS64 Release 2"
7cf8053b 1142 depends on SYS_HAS_CPU_MIPS64_R2
797798c1 1143 select CPU_HAS_PREFETCH
1e5f1caa
RB
1144 select CPU_SUPPORTS_32BIT_KERNEL
1145 select CPU_SUPPORTS_64BIT_KERNEL
ec28f306 1146 select CPU_SUPPORTS_HIGHMEM
9cffd154 1147 select CPU_SUPPORTS_HUGEPAGES
1e5f1caa
RB
1148 help
1149 Choose this option to build a kernel for release 2 or later of the
1150 MIPS64 architecture. Many modern embedded systems with a 64-bit
1151 MIPS processor are based on a MIPS64 processor. If you know the
1152 specific type of processor in your system, choose those that one
1153 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1da177e4
LT
1154
1155config CPU_R3000
1156 bool "R3000"
7cf8053b 1157 depends on SYS_HAS_CPU_R3000
f7062ddb 1158 select CPU_HAS_WB
ed5ba2fb 1159 select CPU_SUPPORTS_32BIT_KERNEL
797798c1 1160 select CPU_SUPPORTS_HIGHMEM
1da177e4
LT
1161 help
1162 Please make sure to pick the right CPU type. Linux/MIPS is not
1163 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1164 *not* work on R4000 machines and vice versa. However, since most
1165 of the supported machines have an R4000 (or similar) CPU, R4x00
1166 might be a safe bet. If the resulting kernel does not work,
1167 try to recompile with R3000.
1168
1169config CPU_TX39XX
1170 bool "R39XX"
7cf8053b 1171 depends on SYS_HAS_CPU_TX39XX
ed5ba2fb 1172 select CPU_SUPPORTS_32BIT_KERNEL
1da177e4
LT
1173
1174config CPU_VR41XX
1175 bool "R41xx"
7cf8053b 1176 depends on SYS_HAS_CPU_VR41XX
ed5ba2fb
YY
1177 select CPU_SUPPORTS_32BIT_KERNEL
1178 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4 1179 help
5e83d430 1180 The options selects support for the NEC VR4100 series of processors.
1da177e4
LT
1181 Only choose this option if you have one of these processors as a
1182 kernel built with this option will not run on any other type of
1183 processor or vice versa.
1184
1185config CPU_R4300
1186 bool "R4300"
7cf8053b 1187 depends on SYS_HAS_CPU_R4300
ed5ba2fb
YY
1188 select CPU_SUPPORTS_32BIT_KERNEL
1189 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4
LT
1190 help
1191 MIPS Technologies R4300-series processors.
1192
1193config CPU_R4X00
1194 bool "R4x00"
7cf8053b 1195 depends on SYS_HAS_CPU_R4X00
ed5ba2fb
YY
1196 select CPU_SUPPORTS_32BIT_KERNEL
1197 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4
LT
1198 help
1199 MIPS Technologies R4000-series processors other than 4300, including
1200 the R4000, R4400, R4600, and 4700.
1201
1202config CPU_TX49XX
1203 bool "R49XX"
7cf8053b 1204 depends on SYS_HAS_CPU_TX49XX
de862b48 1205 select CPU_HAS_PREFETCH
ed5ba2fb
YY
1206 select CPU_SUPPORTS_32BIT_KERNEL
1207 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4
LT
1208
1209config CPU_R5000
1210 bool "R5000"
7cf8053b 1211 depends on SYS_HAS_CPU_R5000
ed5ba2fb
YY
1212 select CPU_SUPPORTS_32BIT_KERNEL
1213 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4
LT
1214 help
1215 MIPS Technologies R5000-series processors other than the Nevada.
1216
1217config CPU_R5432
1218 bool "R5432"
7cf8053b 1219 depends on SYS_HAS_CPU_R5432
5e83d430
RB
1220 select CPU_SUPPORTS_32BIT_KERNEL
1221 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4 1222
542c1020
SK
1223config CPU_R5500
1224 bool "R5500"
1225 depends on SYS_HAS_CPU_R5500
542c1020
SK
1226 select CPU_SUPPORTS_32BIT_KERNEL
1227 select CPU_SUPPORTS_64BIT_KERNEL
9cffd154 1228 select CPU_SUPPORTS_HUGEPAGES
542c1020
SK
1229 help
1230 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1231 instruction set.
1232
1da177e4
LT
1233config CPU_R6000
1234 bool "R6000"
ed5ba2fb 1235 depends on EXPERIMENTAL
7cf8053b 1236 depends on SYS_HAS_CPU_R6000
ed5ba2fb 1237 select CPU_SUPPORTS_32BIT_KERNEL
1da177e4
LT
1238 help
1239 MIPS Technologies R6000 and R6000A series processors. Note these
c09b47d8 1240 processors are extremely rare and the support for them is incomplete.
1da177e4
LT
1241
1242config CPU_NEVADA
1243 bool "RM52xx"
7cf8053b 1244 depends on SYS_HAS_CPU_NEVADA
ed5ba2fb
YY
1245 select CPU_SUPPORTS_32BIT_KERNEL
1246 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4
LT
1247 help
1248 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1249
1250config CPU_R8000
1251 bool "R8000"
ed5ba2fb 1252 depends on EXPERIMENTAL
7cf8053b 1253 depends on SYS_HAS_CPU_R8000
5e83d430 1254 select CPU_HAS_PREFETCH
ed5ba2fb 1255 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4
LT
1256 help
1257 MIPS Technologies R8000 processors. Note these processors are
1258 uncommon and the support for them is incomplete.
1259
1260config CPU_R10000
1261 bool "R10000"
7cf8053b 1262 depends on SYS_HAS_CPU_R10000
5e83d430 1263 select CPU_HAS_PREFETCH
ed5ba2fb
YY
1264 select CPU_SUPPORTS_32BIT_KERNEL
1265 select CPU_SUPPORTS_64BIT_KERNEL
797798c1 1266 select CPU_SUPPORTS_HIGHMEM
1da177e4
LT
1267 help
1268 MIPS Technologies R10000-series processors.
1269
1270config CPU_RM7000
1271 bool "RM7000"
7cf8053b 1272 depends on SYS_HAS_CPU_RM7000
5e83d430 1273 select CPU_HAS_PREFETCH
ed5ba2fb
YY
1274 select CPU_SUPPORTS_32BIT_KERNEL
1275 select CPU_SUPPORTS_64BIT_KERNEL
797798c1 1276 select CPU_SUPPORTS_HIGHMEM
1da177e4
LT
1277
1278config CPU_RM9000
1279 bool "RM9000"
7cf8053b 1280 depends on SYS_HAS_CPU_RM9000
5e83d430 1281 select CPU_HAS_PREFETCH
ed5ba2fb
YY
1282 select CPU_SUPPORTS_32BIT_KERNEL
1283 select CPU_SUPPORTS_64BIT_KERNEL
797798c1 1284 select CPU_SUPPORTS_HIGHMEM
0004a9df 1285 select WEAK_ORDERING
1da177e4
LT
1286
1287config CPU_SB1
1288 bool "SB1"
7cf8053b 1289 depends on SYS_HAS_CPU_SB1
ed5ba2fb
YY
1290 select CPU_SUPPORTS_32BIT_KERNEL
1291 select CPU_SUPPORTS_64BIT_KERNEL
797798c1 1292 select CPU_SUPPORTS_HIGHMEM
0004a9df 1293 select WEAK_ORDERING
1da177e4 1294
a86c7f72
DD
1295config CPU_CAVIUM_OCTEON
1296 bool "Cavium Octeon processor"
5e683389 1297 depends on SYS_HAS_CPU_CAVIUM_OCTEON
a86c7f72
DD
1298 select IRQ_CPU
1299 select IRQ_CPU_OCTEON
1300 select CPU_HAS_PREFETCH
1301 select CPU_SUPPORTS_64BIT_KERNEL
1302 select SYS_SUPPORTS_SMP
1303 select NR_CPUS_DEFAULT_16
1304 select WEAK_ORDERING
1305 select WEAK_REORDERING_BEYOND_LLSC
1306 select CPU_SUPPORTS_HIGHMEM
9cffd154 1307 select CPU_SUPPORTS_HUGEPAGES
a86c7f72
DD
1308 help
1309 The Cavium Octeon processor is a highly integrated chip containing
1310 many ethernet hardware widgets for networking tasks. The processor
1311 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1312 Full details can be found at http://www.caviumnetworks.com.
1313
1da177e4
LT
1314endchoice
1315
1b93b3c3
WZ
1316config SYS_SUPPORTS_ZBOOT
1317 bool
1318 select HAVE_KERNEL_GZIP
1319 select HAVE_KERNEL_BZIP2
1320 select HAVE_KERNEL_LZMA
1321
1322config SYS_SUPPORTS_ZBOOT_UART16550
1323 bool
1324 select SYS_SUPPORTS_ZBOOT
1325
3702bba5
WZ
1326config CPU_LOONGSON2
1327 bool
1328 select CPU_SUPPORTS_32BIT_KERNEL
1329 select CPU_SUPPORTS_64BIT_KERNEL
1330 select CPU_SUPPORTS_HIGHMEM
1331
1332config SYS_HAS_CPU_LOONGSON2E
2a21c730
FZ
1333 bool
1334
6f7a251a
WZ
1335config SYS_HAS_CPU_LOONGSON2F
1336 bool
55045ff5
WZ
1337 select CPU_SUPPORTS_CPUFREQ
1338 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
22f1fdfd 1339 select CPU_SUPPORTS_UNCACHED_ACCELERATED
6f7a251a 1340
7cf8053b
RB
1341config SYS_HAS_CPU_MIPS32_R1
1342 bool
1343
1344config SYS_HAS_CPU_MIPS32_R2
1345 bool
1346
1347config SYS_HAS_CPU_MIPS64_R1
1348 bool
1349
1350config SYS_HAS_CPU_MIPS64_R2
1351 bool
1352
1353config SYS_HAS_CPU_R3000
1354 bool
1355
1356config SYS_HAS_CPU_TX39XX
1357 bool
1358
1359config SYS_HAS_CPU_VR41XX
1360 bool
1361
1362config SYS_HAS_CPU_R4300
1363 bool
1364
1365config SYS_HAS_CPU_R4X00
1366 bool
1367
1368config SYS_HAS_CPU_TX49XX
1369 bool
1370
1371config SYS_HAS_CPU_R5000
1372 bool
1373
1374config SYS_HAS_CPU_R5432
1375 bool
1376
542c1020
SK
1377config SYS_HAS_CPU_R5500
1378 bool
1379
7cf8053b
RB
1380config SYS_HAS_CPU_R6000
1381 bool
1382
1383config SYS_HAS_CPU_NEVADA
1384 bool
1385
1386config SYS_HAS_CPU_R8000
1387 bool
1388
1389config SYS_HAS_CPU_R10000
1390 bool
1391
1392config SYS_HAS_CPU_RM7000
1393 bool
1394
1395config SYS_HAS_CPU_RM9000
1396 bool
1397
1398config SYS_HAS_CPU_SB1
1399 bool
1400
5e683389
DD
1401config SYS_HAS_CPU_CAVIUM_OCTEON
1402 bool
1403
17099b11
RB
1404#
1405# CPU may reorder R->R, R->W, W->R, W->W
1406# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1407#
0004a9df
RB
1408config WEAK_ORDERING
1409 bool
17099b11
RB
1410
1411#
1412# CPU may reorder reads and writes beyond LL/SC
1413# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1414#
1415config WEAK_REORDERING_BEYOND_LLSC
1416 bool
5e83d430
RB
1417endmenu
1418
1419#
c09b47d8 1420# These two indicate any level of the MIPS32 and MIPS64 architecture
5e83d430
RB
1421#
1422config CPU_MIPS32
1423 bool
1424 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1425
1426config CPU_MIPS64
1427 bool
1428 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1429
1430#
c09b47d8 1431# These two indicate the revision of the architecture, either Release 1 or Release 2
5e83d430
RB
1432#
1433config CPU_MIPSR1
1434 bool
1435 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1436
1437config CPU_MIPSR2
1438 bool
a86c7f72 1439 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
5e83d430
RB
1440
1441config SYS_SUPPORTS_32BIT_KERNEL
1442 bool
1443config SYS_SUPPORTS_64BIT_KERNEL
1444 bool
1445config CPU_SUPPORTS_32BIT_KERNEL
1446 bool
1447config CPU_SUPPORTS_64BIT_KERNEL
1448 bool
55045ff5
WZ
1449config CPU_SUPPORTS_CPUFREQ
1450 bool
1451config CPU_SUPPORTS_ADDRWINCFG
1452 bool
9cffd154
DD
1453config CPU_SUPPORTS_HUGEPAGES
1454 bool
22f1fdfd
WZ
1455config CPU_SUPPORTS_UNCACHED_ACCELERATED
1456 bool
82622284
DD
1457config MIPS_PGD_C0_CONTEXT
1458 bool
1459 default y if 64BIT && CPU_MIPSR2
5e83d430 1460
8192c9ea
DD
1461#
1462# Set to y for ptrace access to watch registers.
1463#
1464config HARDWARE_WATCHPOINTS
1465 bool
f839490a 1466 default y if CPU_MIPSR1 || CPU_MIPSR2
8192c9ea 1467
5e83d430
RB
1468menu "Kernel type"
1469
1470choice
1471
1472 prompt "Kernel code model"
1473 help
1474 You should only select this option if you have a workload that
1475 actually benefits from 64-bit processing or if your machine has
1476 large memory. You will only be presented a single option in this
1477 menu if your system does not support both 32-bit and 64-bit kernels.
1478
1479config 32BIT
1480 bool "32-bit kernel"
1481 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1482 select TRAD_SIGNALS
1483 help
1484 Select this option if you want to build a 32-bit kernel.
1485config 64BIT
1486 bool "64-bit kernel"
1487 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
dbda6ac0 1488 select HAVE_SYSCALL_WRAPPERS
5e83d430
RB
1489 help
1490 Select this option if you want to build a 64-bit kernel.
1491
1492endchoice
1493
1da177e4
LT
1494choice
1495 prompt "Kernel page size"
1496 default PAGE_SIZE_4KB
1497
1498config PAGE_SIZE_4KB
1499 bool "4kB"
315fe625 1500 depends on !CPU_LOONGSON2
1da177e4
LT
1501 help
1502 This option select the standard 4kB Linux page size. On some
1503 R3000-family processors this is the only available page size. Using
1504 4kB page size will minimize memory consumption and is therefore
1505 recommended for low memory systems.
1506
1507config PAGE_SIZE_8KB
1508 bool "8kB"
c52399be 1509 depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON
1da177e4
LT
1510 help
1511 Using 8kB page size will result in higher performance kernel at
1512 the price of higher memory consumption. This option is available
c52399be
RB
1513 only on R8000 and cnMIPS processors. Note that you will need a
1514 suitable Linux distribution to support this.
1da177e4
LT
1515
1516config PAGE_SIZE_16KB
1517 bool "16kB"
714bfad6 1518 depends on !CPU_R3000 && !CPU_TX39XX
1da177e4
LT
1519 help
1520 Using 16kB page size will result in higher performance kernel at
1521 the price of higher memory consumption. This option is available on
714bfad6
RB
1522 all non-R3000 family processors. Note that you will need a suitable
1523 Linux distribution to support this.
1da177e4 1524
c52399be
RB
1525config PAGE_SIZE_32KB
1526 bool "32kB"
1527 depends on CPU_CAVIUM_OCTEON
1528 help
1529 Using 32kB page size will result in higher performance kernel at
1530 the price of higher memory consumption. This option is available
1531 only on cnMIPS cores. Note that you will need a suitable Linux
1532 distribution to support this.
1533
1da177e4
LT
1534config PAGE_SIZE_64KB
1535 bool "64kB"
1536 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1537 help
1538 Using 64kB page size will result in higher performance kernel at
1539 the price of higher memory consumption. This option is available on
1540 all non-R3000 family processor. Not that at the time of this
714bfad6 1541 writing this option is still high experimental.
1da177e4
LT
1542
1543endchoice
1544
1545config BOARD_SCACHE
1546 bool
1547
1548config IP22_CPU_SCACHE
1549 bool
1550 select BOARD_SCACHE
1551
9318c51a
CD
1552#
1553# Support for a MIPS32 / MIPS64 style S-caches
1554#
1555config MIPS_CPU_SCACHE
1556 bool
1557 select BOARD_SCACHE
1558
1da177e4
LT
1559config R5000_CPU_SCACHE
1560 bool
1561 select BOARD_SCACHE
1562
1563config RM7000_CPU_SCACHE
1564 bool
1565 select BOARD_SCACHE
1566
1567config SIBYTE_DMA_PAGEOPS
1568 bool "Use DMA to clear/copy pages"
1569 depends on CPU_SB1
1570 help
1571 Instead of using the CPU to zero and copy pages, use a Data Mover
1572 channel. These DMA channels are otherwise unused by the standard
1573 SiByte Linux port. Seems to give a small performance benefit.
1574
1575config CPU_HAS_PREFETCH
c8094b53 1576 bool
1da177e4 1577
340ee4b9
RB
1578choice
1579 prompt "MIPS MT options"
f41ae0b2
RB
1580
1581config MIPS_MT_DISABLED
1582 bool "Disable multithreading support."
1583 help
1584 Use this option if your workload can't take advantage of
1585 MIPS hardware multithreading support. On systems that don't have
1586 the option of an MT-enabled processor this option will be the only
1587 option in this menu.
340ee4b9 1588
59d6ab86
RB
1589config MIPS_MT_SMP
1590 bool "Use 1 TC on each available VPE for SMP"
f41ae0b2 1591 depends on SYS_SUPPORTS_MULTITHREADING
f7062ddb 1592 select CPU_MIPSR2_IRQ_VI
d725cf38 1593 select CPU_MIPSR2_IRQ_EI
f41ae0b2 1594 select MIPS_MT
f510aa3b 1595 select NR_CPUS_DEFAULT_2
41c594ab 1596 select SMP
0ab7aefc 1597 select SYS_SUPPORTS_SCHED_SMT if SMP
73b76c78 1598 select SYS_SUPPORTS_SMP
87353d8a 1599 select SMP_UP
f41ae0b2 1600 help
59d6ab86
RB
1601 This is a kernel model which is also known a VSMP or lately
1602 has been marketesed into SMVP.
41c594ab 1603
59d6ab86
RB
1604config MIPS_MT_SMTC
1605 bool "SMTC: Use all TCs on all VPEs for SMP"
1606 depends on CPU_MIPS32_R2
1607 #depends on CPU_MIPS64_R2 # once there is hardware ...
f41ae0b2
RB
1608 depends on SYS_SUPPORTS_MULTITHREADING
1609 select CPU_MIPSR2_IRQ_VI
d725cf38 1610 select CPU_MIPSR2_IRQ_EI
f41ae0b2 1611 select MIPS_MT
130e2fb7 1612 select NR_CPUS_DEFAULT_8
340ee4b9 1613 select SMP
73b76c78 1614 select SYS_SUPPORTS_SMP
87353d8a 1615 select SMP_UP
f41ae0b2 1616 help
59d6ab86
RB
1617 This is a kernel model which is known a SMTC or lately has been
1618 marketesed into SMVP.
340ee4b9 1619
340ee4b9
RB
1620endchoice
1621
f41ae0b2
RB
1622config MIPS_MT
1623 bool
1624
0ab7aefc
RB
1625config SCHED_SMT
1626 bool "SMT (multithreading) scheduler support"
1627 depends on SYS_SUPPORTS_SCHED_SMT
1628 default n
1629 help
1630 SMT scheduler support improves the CPU scheduler's decision making
1631 when dealing with MIPS MT enabled cores at a cost of slightly
1632 increased overhead in some places. If unsure say N here.
1633
1634config SYS_SUPPORTS_SCHED_SMT
1635 bool
1636
1637
f41ae0b2
RB
1638config SYS_SUPPORTS_MULTITHREADING
1639 bool
1640
f088fc84
RB
1641config MIPS_MT_FPAFF
1642 bool "Dynamic FPU affinity for FP-intensive threads"
f088fc84 1643 default y
07cc0c9e
RB
1644 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1645
1646config MIPS_VPE_LOADER
1647 bool "VPE loader support."
1648 depends on SYS_SUPPORTS_MULTITHREADING
1649 select CPU_MIPSR2_IRQ_VI
1650 select CPU_MIPSR2_IRQ_EI
07cc0c9e
RB
1651 select MIPS_MT
1652 help
1653 Includes a loader for loading an elf relocatable object
1654 onto another VPE and running it.
f088fc84 1655
0db34215
KK
1656config MIPS_MT_SMTC_IM_BACKSTOP
1657 bool "Use per-TC register bits as backstop for inhibited IM bits"
1658 depends on MIPS_MT_SMTC
8531a35e 1659 default n
0db34215
KK
1660 help
1661 To support multiple TC microthreads acting as "CPUs" within
1662 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1663 during interrupt handling. To support legacy drivers and interrupt
1664 controller management code, SMTC has a "backstop" to track and
1665 if necessary restore the interrupt mask. This has some performance
8531a35e 1666 impact on interrupt service overhead.
0db34215 1667
f571eff0
KK
1668config MIPS_MT_SMTC_IRQAFF
1669 bool "Support IRQ affinity API"
1670 depends on MIPS_MT_SMTC
1671 default n
1672 help
1673 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1674 for SMTC Linux kernel. Requires platform support, of which
1675 an example can be found in the MIPS kernel i8259 and Malta
8531a35e
KK
1676 platform code. Adds some overhead to interrupt dispatch, and
1677 should be used only if you know what you are doing.
f571eff0 1678
e01402b1
RB
1679config MIPS_VPE_LOADER_TOM
1680 bool "Load VPE program into memory hidden from linux"
1681 depends on MIPS_VPE_LOADER
1682 default y
1683 help
1684 The loader can use memory that is present but has been hidden from
1685 Linux using the kernel command line option "mem=xxMB". It's up to
1686 you to ensure the amount you put in the option and the space your
1687 program requires is less or equal to the amount physically present.
1688
1689# this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1690config MIPS_VPE_APSP_API
5e83d430
RB
1691 bool "Enable support for AP/SP API (RTLX)"
1692 depends on MIPS_VPE_LOADER
1693 help
e01402b1 1694
2600990e
RB
1695config MIPS_APSP_KSPD
1696 bool "Enable KSPD"
1697 depends on MIPS_VPE_APSP_API
1698 default y
1699 help
1700 KSPD is a kernel daemon that accepts syscall requests from the SP
1701 side, actions them and returns the results. It also handles the
1702 "exit" syscall notifying other kernel modules the SP program is
1703 exiting. You probably want to say yes here.
1704
4a16ff4c
RB
1705config MIPS_CMP
1706 bool "MIPS CMP framework support"
1707 depends on SYS_SUPPORTS_MIPS_CMP
eb9b5141 1708 select SYNC_R4K
4a16ff4c
RB
1709 select SYS_SUPPORTS_SMP
1710 select SYS_SUPPORTS_SCHED_SMT if SMP
1711 select WEAK_ORDERING
1712 default n
1713 help
1714 This is a placeholder option for the GCMP work. It will need to
1715 be handled differently...
1716
1da177e4
LT
1717config SB1_PASS_1_WORKAROUNDS
1718 bool
1719 depends on CPU_SB1_PASS_1
1720 default y
1721
1722config SB1_PASS_2_WORKAROUNDS
1723 bool
1724 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1725 default y
1726
1727config SB1_PASS_2_1_WORKAROUNDS
1728 bool
1729 depends on CPU_SB1 && CPU_SB1_PASS_2
1730 default y
1731
1732config 64BIT_PHYS_ADDR
d806cb2b 1733 bool
1da177e4 1734
9693a853
FBH
1735config CPU_HAS_SMARTMIPS
1736 depends on SYS_SUPPORTS_SMARTMIPS
1737 bool "Support for the SmartMIPS ASE"
1738 help
1739 SmartMIPS is a extension of the MIPS32 architecture aimed at
1740 increased security at both hardware and software level for
1741 smartcards. Enabling this option will allow proper use of the
1742 SmartMIPS instructions by Linux applications. However a kernel with
1743 this option will not work on a MIPS core without SmartMIPS core. If
1744 you don't know you probably don't have SmartMIPS and should say N
1745 here.
1746
1da177e4 1747config CPU_HAS_WB
f7062ddb 1748 bool
e01402b1 1749
f41ae0b2
RB
1750#
1751# Vectored interrupt mode is an R2 feature
1752#
e01402b1 1753config CPU_MIPSR2_IRQ_VI
f41ae0b2 1754 bool
e01402b1 1755
f41ae0b2
RB
1756#
1757# Extended interrupt mode is an R2 feature
1758#
e01402b1 1759config CPU_MIPSR2_IRQ_EI
f41ae0b2 1760 bool
e01402b1 1761
1da177e4
LT
1762config CPU_HAS_SYNC
1763 bool
1764 depends on !CPU_R3000
1765 default y
1766
ea580401
RB
1767config GENERIC_CLOCKEVENTS_BROADCAST
1768 bool
1769
20d60d99
MR
1770#
1771# CPU non-features
1772#
1773config CPU_DADDI_WORKAROUNDS
1774 bool
1775
1776config CPU_R4000_WORKAROUNDS
1777 bool
1778 select CPU_R4400_WORKAROUNDS
1779
1780config CPU_R4400_WORKAROUNDS
1781 bool
1782
797798c1
RB
1783#
1784# Use the generic interrupt handling code in kernel/irq/:
1785#
1786config GENERIC_HARDIRQS
1787 bool
1788 default y
1789
1790config GENERIC_IRQ_PROBE
1791 bool
1792 default y
1793
0d7012a9 1794config IRQ_PER_CPU
0d7012a9 1795 bool
0d7012a9 1796
1da177e4
LT
1797#
1798# - Highmem only makes sense for the 32-bit kernel.
1799# - The current highmem code will only work properly on physically indexed
1800# caches such as R3000, SB1, R7000 or those that look like they're virtually
1801# indexed such as R4000/R4400 SC and MC versions or R10000. So for the
1802# moment we protect the user and offer the highmem option only on machines
1803# where it's known to be safe. This will not offer highmem on a few systems
1804# such as MIPS32 and MIPS64 CPUs which may have virtual and physically
1805# indexed CPUs but we're playing safe.
797798c1
RB
1806# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
1807# know they might have memory configurations that could make use of highmem
1808# support.
1da177e4
LT
1809#
1810config HIGHMEM
1811 bool "High Memory Support"
797798c1
RB
1812 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
1813
1814config CPU_SUPPORTS_HIGHMEM
1815 bool
1816
1817config SYS_SUPPORTS_HIGHMEM
1818 bool
1da177e4 1819
9693a853
FBH
1820config SYS_SUPPORTS_SMARTMIPS
1821 bool
1822
b4819b59
YY
1823config ARCH_FLATMEM_ENABLE
1824 def_bool y
f133f22d 1825 depends on !NUMA && !CPU_LOONGSON2
b4819b59 1826
d8cb4e11
RB
1827config ARCH_DISCONTIGMEM_ENABLE
1828 bool
1829 default y if SGI_IP27
1830 help
3dde6ad8 1831 Say Y to support efficient handling of discontiguous physical memory,
d8cb4e11
RB
1832 for architectures which are either NUMA (Non-Uniform Memory Access)
1833 or have huge holes in the physical address space for other reasons.
1834 See <file:Documentation/vm/numa> for more.
1835
cce335ae
RB
1836config ARCH_POPULATES_NODE_MAP
1837 def_bool y
1838
31473747
AN
1839config ARCH_SPARSEMEM_ENABLE
1840 bool
7de58fab 1841 select SPARSEMEM_STATIC
31473747 1842
d8cb4e11
RB
1843config NUMA
1844 bool "NUMA Support"
1845 depends on SYS_SUPPORTS_NUMA
1846 help
1847 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
1848 Access). This option improves performance on systems with more
1849 than two nodes; on two node systems it is generally better to
1850 leave it disabled; on single node systems disable this option
1851 disabled.
1852
1853config SYS_SUPPORTS_NUMA
1854 bool
1855
c80d79d7
YG
1856config NODES_SHIFT
1857 int
1858 default "6"
1859 depends on NEED_MULTIPLE_NODES
1860
b4819b59
YY
1861source "mm/Kconfig"
1862
1da177e4
LT
1863config SMP
1864 bool "Multi-Processing support"
e73ea273 1865 depends on SYS_SUPPORTS_SMP
b4b30a5a 1866 select IRQ_PER_CPU
2f304c0a 1867 select USE_GENERIC_SMP_HELPERS
e73ea273 1868 help
1da177e4
LT
1869 This enables support for systems with more than one CPU. If you have
1870 a system with only one CPU, like most personal computers, say N. If
1871 you have a system with more than one CPU, say Y.
1872
1873 If you say N here, the kernel will run on single and multiprocessor
1874 machines, but will use only one CPU of a multiprocessor machine. If
1875 you say Y here, the kernel will run on many, but not all,
1876 singleprocessor machines. On a singleprocessor machine, the kernel
1877 will run faster if you say N here.
1878
1879 People using multiprocessor machines who say Y here should also say
1880 Y to "Enhanced Real Time Clock Support", below.
1881
03502faa
AB
1882 See also the SMP-HOWTO available at
1883 <http://www.tldp.org/docs.html#howto>.
1da177e4
LT
1884
1885 If you don't know what to do here, say N.
1886
87353d8a
RB
1887config SMP_UP
1888 bool
1889
4a16ff4c
RB
1890config SYS_SUPPORTS_MIPS_CMP
1891 bool
1892
e73ea273
RB
1893config SYS_SUPPORTS_SMP
1894 bool
1895
72ede9b1
AN
1896config NR_CPUS_DEFAULT_1
1897 bool
1898
130e2fb7
RB
1899config NR_CPUS_DEFAULT_2
1900 bool
1901
1902config NR_CPUS_DEFAULT_4
1903 bool
1904
1905config NR_CPUS_DEFAULT_8
1906 bool
1907
1908config NR_CPUS_DEFAULT_16
1909 bool
1910
1911config NR_CPUS_DEFAULT_32
1912 bool
1913
1914config NR_CPUS_DEFAULT_64
1915 bool
1916
1da177e4
LT
1917config NR_CPUS
1918 int "Maximum number of CPUs (2-64)"
72ede9b1 1919 range 1 64 if NR_CPUS_DEFAULT_1
1da177e4 1920 depends on SMP
72ede9b1 1921 default "1" if NR_CPUS_DEFAULT_1
130e2fb7
RB
1922 default "2" if NR_CPUS_DEFAULT_2
1923 default "4" if NR_CPUS_DEFAULT_4
1924 default "8" if NR_CPUS_DEFAULT_8
1925 default "16" if NR_CPUS_DEFAULT_16
1926 default "32" if NR_CPUS_DEFAULT_32
1927 default "64" if NR_CPUS_DEFAULT_64
1da177e4
LT
1928 help
1929 This allows you to specify the maximum number of CPUs which this
1930 kernel will support. The maximum supported value is 32 for 32-bit
1931 kernel and 64 for 64-bit kernels; the minimum value which makes
72ede9b1
AN
1932 sense is 1 for Qemu (useful only for kernel debugging purposes)
1933 and 2 for all others.
1da177e4
LT
1934
1935 This is purely to save memory - each supported CPU adds
72ede9b1
AN
1936 approximately eight kilobytes to the kernel image. For best
1937 performance should round up your number of processors to the next
1938 power of two.
1da177e4 1939
c4eee283
AN
1940source "kernel/time/Kconfig"
1941
1723b4a3
AN
1942#
1943# Timer Interrupt Frequency Configuration
1944#
1945
1946choice
1947 prompt "Timer frequency"
1948 default HZ_250
1949 help
1950 Allows the configuration of the timer frequency.
1951
1952 config HZ_48
0f873585 1953 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
1723b4a3
AN
1954
1955 config HZ_100
1956 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
1957
1958 config HZ_128
1959 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
1960
1961 config HZ_250
1962 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
1963
1964 config HZ_256
1965 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
1966
1967 config HZ_1000
1968 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
1969
1970 config HZ_1024
1971 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
1972
1973endchoice
1974
1975config SYS_SUPPORTS_48HZ
1976 bool
1977
1978config SYS_SUPPORTS_100HZ
1979 bool
1980
1981config SYS_SUPPORTS_128HZ
1982 bool
1983
1984config SYS_SUPPORTS_250HZ
1985 bool
1986
1987config SYS_SUPPORTS_256HZ
1988 bool
1989
1990config SYS_SUPPORTS_1000HZ
1991 bool
1992
1993config SYS_SUPPORTS_1024HZ
1994 bool
1995
1996config SYS_SUPPORTS_ARBIT_HZ
1997 bool
1998 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
1999 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2000 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2001 !SYS_SUPPORTS_1024HZ
2002
2003config HZ
2004 int
2005 default 48 if HZ_48
2006 default 100 if HZ_100
2007 default 128 if HZ_128
2008 default 250 if HZ_250
2009 default 256 if HZ_256
2010 default 1000 if HZ_1000
2011 default 1024 if HZ_1024
2012
e80de850 2013source "kernel/Kconfig.preempt"
1da177e4 2014
1da177e4
LT
2015config MIPS_INSANE_LARGE
2016 bool "Support for large 64-bit configurations"
875d43e7 2017 depends on CPU_R10000 && 64BIT
1da177e4
LT
2018 help
2019 MIPS R10000 does support a 44 bit / 16TB address space as opposed to
2020 previous 64-bit processors which only supported 40 bit / 1TB. If you
2021 need processes of more than 1TB virtual address space, say Y here.
2022 This will result in additional memory usage, so it is not
2023 recommended for normal users.
2024
ea6e942b
AN
2025config KEXEC
2026 bool "Kexec system call (EXPERIMENTAL)"
2027 depends on EXPERIMENTAL
2028 help
2029 kexec is a system call that implements the ability to shutdown your
2030 current kernel, and to start another kernel. It is like a reboot
3dde6ad8 2031 but it is independent of the system firmware. And like a reboot
ea6e942b
AN
2032 you can start any kernel with it, not just Linux.
2033
01dd2fbf 2034 The name comes from the similarity to the exec system call.
ea6e942b
AN
2035
2036 It is an ongoing process to be certain the hardware in a machine
2037 is properly shutdown, so do not be surprised if this code does not
2038 initially work for you. It may help to enable device hotplugging
2039 support. As of this writing the exact hardware interface is
2040 strongly in flux, so no good recommendation can be made.
2041
2042config SECCOMP
2043 bool "Enable seccomp to safely compute untrusted bytecode"
293c5bd1 2044 depends on PROC_FS
ea6e942b
AN
2045 default y
2046 help
2047 This kernel feature is useful for number crunching applications
2048 that may need to compute untrusted bytecode during their
2049 execution. By using pipes or other transports made available to
2050 the process as file descriptors supporting the read/write
2051 syscalls, it's possible to isolate those applications in
2052 their own address space using seccomp. Once seccomp is
2053 enabled via /proc/<pid>/seccomp, it cannot be disabled
2054 and the task is only allowed to execute a few safe syscalls
2055 defined by each seccomp mode.
2056
2057 If unsure, say Y. Only embedded should say N here.
2058
5e83d430
RB
2059endmenu
2060
1df0f0ff
AN
2061config LOCKDEP_SUPPORT
2062 bool
2063 default y
2064
2065config STACKTRACE_SUPPORT
2066 bool
2067 default y
2068
b6c3539b
RB
2069source "init/Kconfig"
2070
dc52ddc0
MH
2071source "kernel/Kconfig.freezer"
2072
1da177e4
LT
2073menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2074
5e83d430
RB
2075config HW_HAS_EISA
2076 bool
1da177e4
LT
2077config HW_HAS_PCI
2078 bool
2079
2080config PCI
2081 bool "Support for PCI controller"
2082 depends on HW_HAS_PCI
abb4ae46 2083 select PCI_DOMAINS
1da177e4
LT
2084 help
2085 Find out whether you have a PCI motherboard. PCI is the name of a
2086 bus system, i.e. the way the CPU talks to the other stuff inside
2087 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2088 say Y, otherwise N.
2089
1da177e4
LT
2090config PCI_DOMAINS
2091 bool
1da177e4
LT
2092
2093source "drivers/pci/Kconfig"
2094
2095#
2096# ISA support is now enabled via select. Too many systems still have the one
2097# or other ISA chip on the board that users don't know about so don't expect
2098# users to choose the right thing ...
2099#
2100config ISA
2101 bool
2102
2103config EISA
2104 bool "EISA support"
5e83d430 2105 depends on HW_HAS_EISA
1da177e4 2106 select ISA
aa414dff 2107 select GENERIC_ISA_DMA
1da177e4
LT
2108 ---help---
2109 The Extended Industry Standard Architecture (EISA) bus was
2110 developed as an open alternative to the IBM MicroChannel bus.
2111
2112 The EISA bus provided some of the features of the IBM MicroChannel
2113 bus while maintaining backward compatibility with cards made for
2114 the older ISA bus. The EISA bus saw limited use between 1988 and
2115 1995 when it was made obsolete by the PCI bus.
2116
2117 Say Y here if you are building a kernel for an EISA-based machine.
2118
2119 Otherwise, say N.
2120
2121source "drivers/eisa/Kconfig"
2122
2123config TC
2124 bool "TURBOchannel support"
2125 depends on MACH_DECSTATION
2126 help
2127 TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2128 processors. Documentation on writing device drivers for TurboChannel
2129 is available at:
2130 <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
2131
2132#config ACCESSBUS
2133# bool "Access.Bus support"
2134# depends on TC
2135
2136config MMU
2137 bool
2138 default y
2139
d865bea4
RB
2140config I8253
2141 bool
2142
cce335ae
RB
2143config ZONE_DMA32
2144 bool
2145
1da177e4
LT
2146source "drivers/pcmcia/Kconfig"
2147
2148source "drivers/pci/hotplug/Kconfig"
2149
2150endmenu
2151
2152menu "Executable file formats"
2153
2154source "fs/Kconfig.binfmt"
2155
2156config TRAD_SIGNALS
2157 bool
1da177e4 2158
1da177e4
LT
2159config MIPS32_COMPAT
2160 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
875d43e7 2161 depends on 64BIT
1da177e4
LT
2162 help
2163 Select this option if you want Linux/MIPS 32-bit binary
2164 compatibility. Since all software available for Linux/MIPS is
2165 currently 32-bit you should say Y here.
2166
2167config COMPAT
2168 bool
2169 depends on MIPS32_COMPAT
2170 default y
2171
05e43966
AN
2172config SYSVIPC_COMPAT
2173 bool
2174 depends on COMPAT && SYSVIPC
2175 default y
2176
1da177e4
LT
2177config MIPS32_O32
2178 bool "Kernel support for o32 binaries"
2179 depends on MIPS32_COMPAT
2180 help
2181 Select this option if you want to run o32 binaries. These are pure
2182 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2183 existing binaries are in this format.
2184
2185 If unsure, say Y.
2186
2187config MIPS32_N32
2188 bool "Kernel support for n32 binaries"
2189 depends on MIPS32_COMPAT
2190 help
2191 Select this option if you want to run n32 binaries. These are
2192 64-bit binaries using 32-bit quantities for addressing and certain
2193 data that would normally be 64-bit. They are used in special
2194 cases.
2195
2196 If unsure, say N.
2197
2198config BINFMT_ELF32
2199 bool
2200 default y if MIPS32_O32 || MIPS32_N32
2201
2116245e
RB
2202endmenu
2203
2204menu "Power management options"
2205
363c55ca
WZ
2206config ARCH_HIBERNATION_POSSIBLE
2207 def_bool y
3f5b3e17 2208 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
363c55ca 2209
f4cb5700
JB
2210config ARCH_SUSPEND_POSSIBLE
2211 def_bool y
3f5b3e17 2212 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
f4cb5700 2213
2116245e 2214source "kernel/power/Kconfig"
952fa954 2215
1da177e4
LT
2216endmenu
2217
d5950b43
SR
2218source "net/Kconfig"
2219
1da177e4
LT
2220source "drivers/Kconfig"
2221
2222source "fs/Kconfig"
2223
2224source "arch/mips/Kconfig.debug"
2225
2226source "security/Kconfig"
2227
2228source "crypto/Kconfig"
2229
2230source "lib/Kconfig"