Merge tag 'omap-for-v3.13/fixes-for-merge-window-take2' of git://git.kernel.org/pub...
[deliverable/linux.git] / arch / mips / Kconfig
CommitLineData
1da177e4
LT
1config MIPS
2 bool
3 default y
c3fc5cd5 4 select HAVE_CONTEXT_TRACKING
f8ac0425 5 select HAVE_GENERIC_DMA_COHERENT
ec7748b5 6 select HAVE_IDE
42d4b839 7 select HAVE_OPROFILE
7f788d2d
DCZ
8 select HAVE_PERF_EVENTS
9 select PERF_USE_VMALLOC
88547001 10 select HAVE_ARCH_KGDB
c0ff3c53 11 select HAVE_ARCH_TRACEHOOK
7563bbf8 12 select ARCH_HAVE_CUSTOM_GPIO_H
d2bb0762 13 select HAVE_FUNCTION_TRACER
69a7d1b3 14 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
538f1952
WZ
15 select HAVE_DYNAMIC_FTRACE
16 select HAVE_FTRACE_MCOUNT_RECORD
64575f91 17 select HAVE_C_RECORDMCOUNT
29c5d346 18 select HAVE_FUNCTION_GRAPH_TRACER
c1bf207d
DD
19 select HAVE_KPROBES
20 select HAVE_KRETPROBES
b69ec42b 21 select HAVE_DEBUG_KMEMLEAK
1d7bf993 22 select HAVE_SYSCALL_TRACEPOINTS
e26d196c 23 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
383c97b4 24 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
21a41faa 25 select RTC_LIB if !MACH_LOONGSON
2b78920d 26 select GENERIC_ATOMIC64 if !64BIT
7463449b 27 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
48e1fd5a
DD
28 select HAVE_DMA_ATTRS
29 select HAVE_DMA_API_DEBUG
3bd27e32 30 select GENERIC_IRQ_PROBE
f8396c17 31 select GENERIC_IRQ_SHOW
78857614 32 select GENERIC_PCI_IOMAP
94bb0c1a 33 select HAVE_ARCH_JUMP_LABEL
c1d7e01d 34 select ARCH_WANT_IPC_PARSE_VERSION
0f462e3c 35 select IRQ_FORCED_THREADING
9d15ffc8
TH
36 select HAVE_MEMBLOCK
37 select HAVE_MEMBLOCK_NODE_MAP
38 select ARCH_DISCARD_MEMBLOCK
360014a3 39 select GENERIC_SMP_IDLE_THREAD
4b054495 40 select BUILDTIME_EXTABLE_SORT
cde1794b
AMG
41 select GENERIC_CLOCKEVENTS
42 select GENERIC_CMOS_UPDATE
786d35d4 43 select HAVE_MOD_ARCH_SPECIFIC
4febd95a 44 select VIRT_TO_BUS
2f12fb20
JK
45 select MODULES_USE_ELF_REL if MODULES
46 select MODULES_USE_ELF_RELA if MODULES && 64BIT
50150d2b 47 select CLONE_BACKWARDS
d1a1dc0b 48 select HAVE_DEBUG_STACKOVERFLOW
1da177e4 49
1da177e4
LT
50menu "Machine selection"
51
5e83d430
RB
52choice
53 prompt "System type"
54 default SGI_IP22
1da177e4 55
42a4f17d 56config MIPS_ALCHEMY
c3543e25 57 bool "Alchemy processor based machines"
42a4f17d 58 select 64BIT_PHYS_ADDR
f772cdb2 59 select CEVT_R4K
d7ea335c 60 select CSRC_R4K
42a4f17d
ML
61 select IRQ_CPU
62 select SYS_HAS_CPU_MIPS32_R1
63 select SYS_SUPPORTS_32BIT_KERNEL
64 select SYS_SUPPORTS_APM_EMULATION
efb12436 65 select ARCH_REQUIRE_GPIOLIB
1b93b3c3 66 select SYS_SUPPORTS_ZBOOT
37663860
ML
67 select USB_ARCH_HAS_OHCI
68 select USB_ARCH_HAS_EHCI
1da177e4 69
7ca5dc14
FF
70config AR7
71 bool "Texas Instruments AR7"
72 select BOOT_ELF32
73 select DMA_NONCOHERENT
74 select CEVT_R4K
75 select CSRC_R4K
76 select IRQ_CPU
77 select NO_EXCEPT_FILL
78 select SWAP_IO_SPACE
79 select SYS_HAS_CPU_MIPS32_R1
80 select SYS_HAS_EARLY_PRINTK
81 select SYS_SUPPORTS_32BIT_KERNEL
82 select SYS_SUPPORTS_LITTLE_ENDIAN
1b93b3c3 83 select SYS_SUPPORTS_ZBOOT_UART16550
5f3c9098 84 select ARCH_REQUIRE_GPIOLIB
7ca5dc14 85 select VLYNQ
8551fb64 86 select HAVE_CLK
7ca5dc14
FF
87 help
88 Support for the Texas Instruments AR7 System-on-a-Chip
89 family: TNETD7100, 7200 and 7300.
90
d4a67d9d
GJ
91config ATH79
92 bool "Atheros AR71XX/AR724X/AR913X based boards"
6eae43c5 93 select ARCH_REQUIRE_GPIOLIB
d4a67d9d
GJ
94 select BOOT_RAW
95 select CEVT_R4K
96 select CSRC_R4K
97 select DMA_NONCOHERENT
94638067 98 select HAVE_CLK
2c4f1ac5 99 select CLKDEV_LOOKUP
d4a67d9d 100 select IRQ_CPU
0aabf1a4 101 select MIPS_MACHINE
d4a67d9d
GJ
102 select SYS_HAS_CPU_MIPS32_R2
103 select SYS_HAS_EARLY_PRINTK
104 select SYS_SUPPORTS_32BIT_KERNEL
105 select SYS_SUPPORTS_BIG_ENDIAN
106 help
107 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
108
1c0c13eb 109config BCM47XX
c619366e 110 bool "Broadcom BCM47XX based boards"
2da4c74d 111 select ARCH_WANT_OPTIONAL_GPIOLIB
fe08f8c2 112 select BOOT_RAW
42f77542 113 select CEVT_R4K
940f6b48 114 select CSRC_R4K
1c0c13eb 115 select DMA_NONCOHERENT
0e2794b0 116 select FW_CFE
1c0c13eb
AJ
117 select HW_HAS_PCI
118 select IRQ_CPU
314878d2 119 select SYS_HAS_CPU_MIPS32_R1
dd54dedd 120 select NO_EXCEPT_FILL
1c0c13eb
AJ
121 select SYS_SUPPORTS_32BIT_KERNEL
122 select SYS_SUPPORTS_LITTLE_ENDIAN
25e5fb97 123 select SYS_HAS_EARLY_PRINTK
1c0c13eb
AJ
124 help
125 Support for BCM47XX based boards
126
e7300d04
MB
127config BCM63XX
128 bool "Broadcom BCM63XX based boards"
ae8de61c 129 select BOOT_RAW
e7300d04
MB
130 select CEVT_R4K
131 select CSRC_R4K
132 select DMA_NONCOHERENT
133 select IRQ_CPU
134 select SYS_HAS_CPU_MIPS32_R1
d6e34698 135 select SYS_HAS_CPU_BMIPS4350 if !BCM63XX_CPU_6338 && !BCM63XX_CPU_6345 && !BCM63XX_CPU_6348
e7300d04
MB
136 select SYS_SUPPORTS_32BIT_KERNEL
137 select SYS_SUPPORTS_BIG_ENDIAN
138 select SYS_HAS_EARLY_PRINTK
139 select SWAP_IO_SPACE
140 select ARCH_REQUIRE_GPIOLIB
3e82eeeb 141 select HAVE_CLK
e7300d04
MB
142 help
143 Support for BCM63XX based boards
144
1da177e4 145config MIPS_COBALT
3fa986fa 146 bool "Cobalt Server"
42f77542 147 select CEVT_R4K
940f6b48 148 select CSRC_R4K
1097c6ac 149 select CEVT_GT641XX
1da177e4 150 select DMA_NONCOHERENT
8a8594a7 151 select EARLY_PRINTK_8250 if EARLY_PRINTK
1da177e4 152 select HW_HAS_PCI
d865bea4 153 select I8253
1da177e4
LT
154 select I8259
155 select IRQ_CPU
d5ab1a69 156 select IRQ_GT641XX
252161ec 157 select PCI_GT64XXX_PCI0
e25bfc92 158 select PCI
7cf8053b 159 select SYS_HAS_CPU_NEVADA
0a22e0d4 160 select SYS_HAS_EARLY_PRINTK
ed5ba2fb 161 select SYS_SUPPORTS_32BIT_KERNEL
0e8774b6 162 select SYS_SUPPORTS_64BIT_KERNEL
5e83d430 163 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4
LT
164
165config MACH_DECSTATION
3fa986fa 166 bool "DECstations"
1da177e4 167 select BOOT_ELF32
6457d9fc 168 select CEVT_DS1287
42f77542 169 select CEVT_R4K
4247417d 170 select CSRC_IOASIC
940f6b48 171 select CSRC_R4K
20d60d99
MR
172 select CPU_DADDI_WORKAROUNDS if 64BIT
173 select CPU_R4000_WORKAROUNDS if 64BIT
174 select CPU_R4400_WORKAROUNDS if 64BIT
1da177e4 175 select DMA_NONCOHERENT
d388d685 176 select NO_IOPORT
1da177e4 177 select IRQ_CPU
7cf8053b
RB
178 select SYS_HAS_CPU_R3000
179 select SYS_HAS_CPU_R4X00
ed5ba2fb 180 select SYS_SUPPORTS_32BIT_KERNEL
7d60717e 181 select SYS_SUPPORTS_64BIT_KERNEL
5e83d430 182 select SYS_SUPPORTS_LITTLE_ENDIAN
1723b4a3
AN
183 select SYS_SUPPORTS_128HZ
184 select SYS_SUPPORTS_256HZ
185 select SYS_SUPPORTS_1024HZ
5e83d430 186 help
1da177e4
LT
187 This enables support for DEC's MIPS based workstations. For details
188 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
189 DECstation porting pages on <http://decstation.unix-ag.org/>.
190
191 If you have one of the following DECstation Models you definitely
192 want to choose R4xx0 for the CPU Type:
193
9308816c
RB
194 DECstation 5000/50
195 DECstation 5000/150
196 DECstation 5000/260
197 DECsystem 5900/260
1da177e4
LT
198
199 otherwise choose R3000.
200
5e83d430 201config MACH_JAZZ
3fa986fa 202 bool "Jazz family of machines"
0e2794b0
RB
203 select FW_ARC
204 select FW_ARC32
5e83d430 205 select ARCH_MAY_HAVE_PC_FDC
42f77542 206 select CEVT_R4K
940f6b48 207 select CSRC_R4K
e2defae5 208 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
5e83d430 209 select GENERIC_ISA_DMA
8a118c38 210 select HAVE_PCSPKR_PLATFORM
ea202c63 211 select IRQ_CPU
d865bea4 212 select I8253
5e83d430
RB
213 select I8259
214 select ISA
7cf8053b 215 select SYS_HAS_CPU_R4X00
5e83d430 216 select SYS_SUPPORTS_32BIT_KERNEL
7d60717e 217 select SYS_SUPPORTS_64BIT_KERNEL
1723b4a3 218 select SYS_SUPPORTS_100HZ
1da177e4 219 help
5e83d430
RB
220 This a family of machines based on the MIPS R4030 chipset which was
221 used by several vendors to build RISC/os and Windows NT workstations.
692105b8 222 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
5e83d430
RB
223 Olivetti M700-10 workstations.
224
5ebabe59
LPC
225config MACH_JZ4740
226 bool "Ingenic JZ4740 based machines"
227 select SYS_HAS_CPU_MIPS32_R1
228 select SYS_SUPPORTS_32BIT_KERNEL
229 select SYS_SUPPORTS_LITTLE_ENDIAN
f9c9affc 230 select SYS_SUPPORTS_ZBOOT_UART16550
5ebabe59
LPC
231 select DMA_NONCOHERENT
232 select IRQ_CPU
5ebabe59
LPC
233 select ARCH_REQUIRE_GPIOLIB
234 select SYS_HAS_EARLY_PRINTK
235 select HAVE_PWM
ab5330eb 236 select HAVE_CLK
83bc7692 237 select GENERIC_IRQ_CHIP
5ebabe59 238
171bb2f1
JC
239config LANTIQ
240 bool "Lantiq based platforms"
241 select DMA_NONCOHERENT
242 select IRQ_CPU
243 select CEVT_R4K
244 select CSRC_R4K
245 select SYS_HAS_CPU_MIPS32_R1
246 select SYS_HAS_CPU_MIPS32_R2
247 select SYS_SUPPORTS_BIG_ENDIAN
248 select SYS_SUPPORTS_32BIT_KERNEL
249 select SYS_SUPPORTS_MULTITHREADING
250 select SYS_HAS_EARLY_PRINTK
251 select ARCH_REQUIRE_GPIOLIB
252 select SWAP_IO_SPACE
253 select BOOT_RAW
287e3f3f
JC
254 select HAVE_MACH_CLKDEV
255 select CLKDEV_LOOKUP
a0392222 256 select USE_OF
3f8c50c9
JC
257 select PINCTRL
258 select PINCTRL_LANTIQ
171bb2f1 259
1f21d2bd
BM
260config LASAT
261 bool "LASAT Networks platforms"
42f77542 262 select CEVT_R4K
940f6b48 263 select CSRC_R4K
1f21d2bd
BM
264 select DMA_NONCOHERENT
265 select SYS_HAS_EARLY_PRINTK
266 select HW_HAS_PCI
a5ccfe5c 267 select IRQ_CPU
1f21d2bd
BM
268 select PCI_GT64XXX_PCI0
269 select MIPS_NILE4
270 select R5000_CPU_SCACHE
271 select SYS_HAS_CPU_R5000
272 select SYS_SUPPORTS_32BIT_KERNEL
273 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
274 select SYS_SUPPORTS_LITTLE_ENDIAN
1f21d2bd 275
85749d24
WZ
276config MACH_LOONGSON
277 bool "Loongson family of machines"
c7e8c668 278 select SYS_SUPPORTS_ZBOOT
ade299d8 279 help
85749d24
WZ
280 This enables the support of Loongson family of machines.
281
282 Loongson is a family of general-purpose MIPS-compatible CPUs.
283 developed at Institute of Computing Technology (ICT),
284 Chinese Academy of Sciences (CAS) in the People's Republic
285 of China. The chief architect is Professor Weiwu Hu.
ade299d8 286
ca585cf9
KC
287config MACH_LOONGSON1
288 bool "Loongson 1 family of machines"
289 select SYS_SUPPORTS_ZBOOT
290 help
291 This enables support for the Loongson 1 based machines.
292
293 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
294 the ICT (Institute of Computing Technology) and the Chinese Academy
295 of Sciences.
296
1da177e4 297config MIPS_MALTA
3fa986fa 298 bool "MIPS Malta board"
61ed242d 299 select ARCH_MAY_HAVE_PC_FDC
1da177e4 300 select BOOT_ELF32
fa71c960 301 select BOOT_RAW
42f77542 302 select CEVT_R4K
940f6b48 303 select CSRC_R4K
778eeb1b 304 select CSRC_GIC
1da177e4
LT
305 select DMA_NONCOHERENT
306 select GENERIC_ISA_DMA
8a118c38 307 select HAVE_PCSPKR_PLATFORM
aa414dff 308 select IRQ_CPU
39b8d525 309 select IRQ_GIC
1da177e4 310 select HW_HAS_PCI
d865bea4 311 select I8253
1da177e4 312 select I8259
5e83d430 313 select MIPS_BONITO64
9318c51a 314 select MIPS_CPU_SCACHE
252161ec 315 select PCI_GT64XXX_PCI0
5e83d430 316 select MIPS_MSC
1da177e4 317 select SWAP_IO_SPACE
7cf8053b
RB
318 select SYS_HAS_CPU_MIPS32_R1
319 select SYS_HAS_CPU_MIPS32_R2
320 select SYS_HAS_CPU_MIPS64_R1
5d9fbed1 321 select SYS_HAS_CPU_MIPS64_R2
7cf8053b
RB
322 select SYS_HAS_CPU_NEVADA
323 select SYS_HAS_CPU_RM7000
36a88530 324 select SYS_HAS_EARLY_PRINTK
ed5ba2fb
YY
325 select SYS_SUPPORTS_32BIT_KERNEL
326 select SYS_SUPPORTS_64BIT_KERNEL
5e83d430
RB
327 select SYS_SUPPORTS_BIG_ENDIAN
328 select SYS_SUPPORTS_LITTLE_ENDIAN
0365070f 329 select SYS_SUPPORTS_MIPS_CMP
f41ae0b2 330 select SYS_SUPPORTS_MULTITHREADING
9693a853 331 select SYS_SUPPORTS_SMARTMIPS
1b93b3c3 332 select SYS_SUPPORTS_ZBOOT
1da177e4 333 help
f638d197 334 This enables support for the MIPS Technologies Malta evaluation
1da177e4
LT
335 board.
336
ec47b274
SH
337config MIPS_SEAD3
338 bool "MIPS SEAD3 board"
339 select BOOT_ELF32
340 select BOOT_RAW
341 select CEVT_R4K
342 select CSRC_R4K
dfa762e1 343 select CSRC_GIC
ec47b274
SH
344 select CPU_MIPSR2_IRQ_VI
345 select CPU_MIPSR2_IRQ_EI
346 select DMA_NONCOHERENT
347 select IRQ_CPU
348 select IRQ_GIC
ec47b274
SH
349 select MIPS_MSC
350 select SYS_HAS_CPU_MIPS32_R1
351 select SYS_HAS_CPU_MIPS32_R2
352 select SYS_HAS_CPU_MIPS64_R1
353 select SYS_HAS_EARLY_PRINTK
354 select SYS_SUPPORTS_32BIT_KERNEL
355 select SYS_SUPPORTS_64BIT_KERNEL
356 select SYS_SUPPORTS_BIG_ENDIAN
357 select SYS_SUPPORTS_LITTLE_ENDIAN
358 select SYS_SUPPORTS_SMARTMIPS
a6a4834c 359 select SYS_SUPPORTS_MICROMIPS
ec47b274
SH
360 select USB_ARCH_HAS_EHCI
361 select USB_EHCI_BIG_ENDIAN_DESC
362 select USB_EHCI_BIG_ENDIAN_MMIO
9b731009 363 select USE_OF
ec47b274
SH
364 help
365 This enables support for the MIPS Technologies SEAD3 evaluation
366 board.
367
a83860c2
RB
368config NEC_MARKEINS
369 bool "NEC EMMA2RH Mark-eins board"
370 select SOC_EMMA2RH
371 select HW_HAS_PCI
372 help
373 This enables support for the NEC Electronics Mark-eins boards.
ade299d8 374
5e83d430 375config MACH_VR41XX
74142d65 376 bool "NEC VR4100 series based machines"
42f77542 377 select CEVT_R4K
940f6b48 378 select CSRC_R4K
7cf8053b 379 select SYS_HAS_CPU_VR41XX
27fdd325 380 select ARCH_REQUIRE_GPIOLIB
5e83d430 381
edb6310a
DL
382config NXP_STB220
383 bool "NXP STB220 board"
384 select SOC_PNX833X
385 help
386 Support for NXP Semiconductors STB220 Development Board.
387
388config NXP_STB225
389 bool "NXP 225 board"
390 select SOC_PNX833X
391 select SOC_PNX8335
392 help
393 Support for NXP Semiconductors STB225 Development Board.
394
9267a30d
MSJ
395config PMC_MSP
396 bool "PMC-Sierra MSP chipsets"
39d30c13
A
397 select CEVT_R4K
398 select CSRC_R4K
9267a30d
MSJ
399 select DMA_NONCOHERENT
400 select SWAP_IO_SPACE
401 select NO_EXCEPT_FILL
402 select BOOT_RAW
403 select SYS_HAS_CPU_MIPS32_R1
404 select SYS_HAS_CPU_MIPS32_R2
405 select SYS_SUPPORTS_32BIT_KERNEL
406 select SYS_SUPPORTS_BIG_ENDIAN
9267a30d
MSJ
407 select IRQ_CPU
408 select SERIAL_8250
409 select SERIAL_8250_CONSOLE
9296d94d
FF
410 select USB_EHCI_BIG_ENDIAN_MMIO
411 select USB_EHCI_BIG_ENDIAN_DESC
9267a30d
MSJ
412 help
413 This adds support for the PMC-Sierra family of Multi-Service
414 Processor System-On-A-Chips. These parts include a number
415 of integrated peripherals, interfaces and DSPs in addition to
416 a variety of MIPS cores.
417
ae2b5bb6
JC
418config RALINK
419 bool "Ralink based machines"
420 select CEVT_R4K
421 select CSRC_R4K
422 select BOOT_RAW
423 select DMA_NONCOHERENT
424 select IRQ_CPU
425 select USE_OF
426 select SYS_HAS_CPU_MIPS32_R1
427 select SYS_HAS_CPU_MIPS32_R2
428 select SYS_SUPPORTS_32BIT_KERNEL
429 select SYS_SUPPORTS_LITTLE_ENDIAN
430 select SYS_HAS_EARLY_PRINTK
431 select HAVE_MACH_CLKDEV
432 select CLKDEV_LOOKUP
2a153f1c
JC
433 select ARCH_HAS_RESET_CONTROLLER
434 select RESET_CONTROLLER
ae2b5bb6 435
1da177e4 436config SGI_IP22
3fa986fa 437 bool "SGI IP22 (Indy/Indigo2)"
0e2794b0
RB
438 select FW_ARC
439 select FW_ARC32
1da177e4 440 select BOOT_ELF32
42f77542 441 select CEVT_R4K
940f6b48 442 select CSRC_R4K
e2defae5 443 select DEFAULT_SGI_PARTITION
1da177e4 444 select DMA_NONCOHERENT
5e83d430 445 select HW_HAS_EISA
d865bea4 446 select I8253
68de4803 447 select I8259
1da177e4
LT
448 select IP22_CPU_SCACHE
449 select IRQ_CPU
aa414dff 450 select GENERIC_ISA_DMA_SUPPORT_BROKEN
e2defae5
TB
451 select SGI_HAS_I8042
452 select SGI_HAS_INDYDOG
36e5c21d 453 select SGI_HAS_HAL2
e2defae5
TB
454 select SGI_HAS_SEEQ
455 select SGI_HAS_WD93
456 select SGI_HAS_ZILOG
1da177e4 457 select SWAP_IO_SPACE
7cf8053b
RB
458 select SYS_HAS_CPU_R4X00
459 select SYS_HAS_CPU_R5000
2b5e63f6
MM
460 #
461 # Disable EARLY_PRINTK for now since it leads to overwritten prom
462 # memory during early boot on some machines.
463 #
464 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
465 # for a more details discussion
466 #
467 # select SYS_HAS_EARLY_PRINTK
ed5ba2fb
YY
468 select SYS_SUPPORTS_32BIT_KERNEL
469 select SYS_SUPPORTS_64BIT_KERNEL
5e83d430 470 select SYS_SUPPORTS_BIG_ENDIAN
1da177e4
LT
471 help
472 This are the SGI Indy, Challenge S and Indigo2, as well as certain
473 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
474 that runs on these, say Y here.
475
476config SGI_IP27
3fa986fa 477 bool "SGI IP27 (Origin200/2000)"
0e2794b0
RB
478 select FW_ARC
479 select FW_ARC64
5e83d430 480 select BOOT_ELF64
e2defae5 481 select DEFAULT_SGI_PARTITION
634286f1 482 select DMA_COHERENT
36a88530 483 select SYS_HAS_EARLY_PRINTK
1da177e4 484 select HW_HAS_PCI
130e2fb7 485 select NR_CPUS_DEFAULT_64
7cf8053b 486 select SYS_HAS_CPU_R10000
ed5ba2fb 487 select SYS_SUPPORTS_64BIT_KERNEL
5e83d430 488 select SYS_SUPPORTS_BIG_ENDIAN
d8cb4e11 489 select SYS_SUPPORTS_NUMA
1a5c5de1 490 select SYS_SUPPORTS_SMP
1da177e4
LT
491 help
492 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
493 workstations. To compile a Linux kernel that runs on these, say Y
494 here.
495
e2defae5 496config SGI_IP28
7d60717e 497 bool "SGI IP28 (Indigo2 R10k)"
0e2794b0
RB
498 select FW_ARC
499 select FW_ARC64
e2defae5
TB
500 select BOOT_ELF64
501 select CEVT_R4K
502 select CSRC_R4K
503 select DEFAULT_SGI_PARTITION
504 select DMA_NONCOHERENT
505 select GENERIC_ISA_DMA_SUPPORT_BROKEN
506 select IRQ_CPU
507 select HW_HAS_EISA
508 select I8253
509 select I8259
e2defae5
TB
510 select SGI_HAS_I8042
511 select SGI_HAS_INDYDOG
5b438c44 512 select SGI_HAS_HAL2
e2defae5
TB
513 select SGI_HAS_SEEQ
514 select SGI_HAS_WD93
515 select SGI_HAS_ZILOG
516 select SWAP_IO_SPACE
517 select SYS_HAS_CPU_R10000
2b5e63f6
MM
518 #
519 # Disable EARLY_PRINTK for now since it leads to overwritten prom
520 # memory during early boot on some machines.
521 #
522 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
523 # for a more details discussion
524 #
525 # select SYS_HAS_EARLY_PRINTK
e2defae5
TB
526 select SYS_SUPPORTS_64BIT_KERNEL
527 select SYS_SUPPORTS_BIG_ENDIAN
528 help
529 This is the SGI Indigo2 with R10000 processor. To compile a Linux
530 kernel that runs on these, say Y here.
531
1da177e4 532config SGI_IP32
cfd2afc0 533 bool "SGI IP32 (O2)"
0e2794b0
RB
534 select FW_ARC
535 select FW_ARC32
1da177e4 536 select BOOT_ELF32
42f77542 537 select CEVT_R4K
940f6b48 538 select CSRC_R4K
1da177e4
LT
539 select DMA_NONCOHERENT
540 select HW_HAS_PCI
dd67b155 541 select IRQ_CPU
1da177e4
LT
542 select R5000_CPU_SCACHE
543 select RM7000_CPU_SCACHE
7cf8053b
RB
544 select SYS_HAS_CPU_R5000
545 select SYS_HAS_CPU_R10000 if BROKEN
546 select SYS_HAS_CPU_RM7000
dd2f18fe 547 select SYS_HAS_CPU_NEVADA
ed5ba2fb 548 select SYS_SUPPORTS_64BIT_KERNEL
23fbee9d 549 select SYS_SUPPORTS_BIG_ENDIAN
23fbee9d 550 help
5e83d430 551 If you want this kernel to run on SGI O2 workstation, say Y here.
1da177e4 552
ade299d8
YY
553config SIBYTE_CRHINE
554 bool "Sibyte BCM91120C-CRhine"
9a6dcea1
AI
555 select BOOT_ELF32
556 select DMA_COHERENT
ade299d8 557 select SIBYTE_BCM1120
9a6dcea1 558 select SWAP_IO_SPACE
7cf8053b 559 select SYS_HAS_CPU_SB1
9a6dcea1
AI
560 select SYS_SUPPORTS_BIG_ENDIAN
561 select SYS_SUPPORTS_LITTLE_ENDIAN
562
ade299d8
YY
563config SIBYTE_CARMEL
564 bool "Sibyte BCM91120x-Carmel"
5e83d430 565 select BOOT_ELF32
1da177e4 566 select DMA_COHERENT
ade299d8 567 select SIBYTE_BCM1120
5e83d430 568 select SWAP_IO_SPACE
7cf8053b 569 select SYS_HAS_CPU_SB1
81731f79 570 select SYS_SUPPORTS_BIG_ENDIAN
5e83d430 571 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 572
ade299d8
YY
573config SIBYTE_CRHONE
574 bool "Sibyte BCM91125C-CRhone"
5e83d430
RB
575 select BOOT_ELF32
576 select DMA_COHERENT
ade299d8 577 select SIBYTE_BCM1125
5e83d430 578 select SWAP_IO_SPACE
7cf8053b 579 select SYS_HAS_CPU_SB1
5e83d430 580 select SYS_SUPPORTS_BIG_ENDIAN
ade299d8 581 select SYS_SUPPORTS_HIGHMEM
5e83d430 582 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 583
5e83d430 584config SIBYTE_RHONE
3fa986fa 585 bool "Sibyte BCM91125E-Rhone"
5e83d430
RB
586 select BOOT_ELF32
587 select DMA_COHERENT
588 select SIBYTE_BCM1125H
589 select SWAP_IO_SPACE
7cf8053b 590 select SYS_HAS_CPU_SB1
5e83d430
RB
591 select SYS_SUPPORTS_BIG_ENDIAN
592 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 593
ade299d8
YY
594config SIBYTE_SWARM
595 bool "Sibyte BCM91250A-SWARM"
5e83d430 596 select BOOT_ELF32
26a940e2 597 select DMA_COHERENT
fcf3ca4c 598 select HAVE_PATA_PLATFORM
ade299d8 599 select SIBYTE_SB1250
5e83d430 600 select SWAP_IO_SPACE
7cf8053b 601 select SYS_HAS_CPU_SB1
5e83d430 602 select SYS_SUPPORTS_BIG_ENDIAN
ade299d8 603 select SYS_SUPPORTS_HIGHMEM
e3ad1c23 604 select SYS_SUPPORTS_LITTLE_ENDIAN
cce335ae 605 select ZONE_DMA32 if 64BIT
e3ad1c23 606
ade299d8
YY
607config SIBYTE_LITTLESUR
608 bool "Sibyte BCM91250C2-LittleSur"
5e83d430
RB
609 select BOOT_ELF32
610 select DMA_COHERENT
fcf3ca4c 611 select HAVE_PATA_PLATFORM
5e83d430
RB
612 select SIBYTE_SB1250
613 select SWAP_IO_SPACE
7cf8053b 614 select SYS_HAS_CPU_SB1
5e83d430
RB
615 select SYS_SUPPORTS_BIG_ENDIAN
616 select SYS_SUPPORTS_HIGHMEM
617 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 618
ade299d8
YY
619config SIBYTE_SENTOSA
620 bool "Sibyte BCM91250E-Sentosa"
5e83d430
RB
621 select BOOT_ELF32
622 select DMA_COHERENT
623 select SIBYTE_SB1250
624 select SWAP_IO_SPACE
7cf8053b 625 select SYS_HAS_CPU_SB1
5e83d430 626 select SYS_SUPPORTS_BIG_ENDIAN
5e83d430 627 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 628
ade299d8
YY
629config SIBYTE_BIGSUR
630 bool "Sibyte BCM91480B-BigSur"
5e83d430
RB
631 select BOOT_ELF32
632 select DMA_COHERENT
ade299d8 633 select NR_CPUS_DEFAULT_4
ade299d8 634 select SIBYTE_BCM1x80
5e83d430 635 select SWAP_IO_SPACE
7cf8053b 636 select SYS_HAS_CPU_SB1
5e83d430 637 select SYS_SUPPORTS_BIG_ENDIAN
651194f8 638 select SYS_SUPPORTS_HIGHMEM
5e83d430 639 select SYS_SUPPORTS_LITTLE_ENDIAN
cce335ae 640 select ZONE_DMA32 if 64BIT
1da177e4 641
14b36af4
TB
642config SNI_RM
643 bool "SNI RM200/300/400"
0e2794b0
RB
644 select FW_ARC if CPU_LITTLE_ENDIAN
645 select FW_ARC32 if CPU_LITTLE_ENDIAN
aaa9fad3 646 select FW_SNIPROM if CPU_BIG_ENDIAN
61ed242d 647 select ARCH_MAY_HAVE_PC_FDC
1da177e4 648 select BOOT_ELF32
42f77542 649 select CEVT_R4K
940f6b48 650 select CSRC_R4K
e2defae5 651 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
1da177e4
LT
652 select DMA_NONCOHERENT
653 select GENERIC_ISA_DMA
8a118c38 654 select HAVE_PCSPKR_PLATFORM
5e83d430 655 select HW_HAS_EISA
1da177e4 656 select HW_HAS_PCI
c066a32a 657 select IRQ_CPU
d865bea4 658 select I8253
1da177e4
LT
659 select I8259
660 select ISA
4a0312fc 661 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
7cf8053b 662 select SYS_HAS_CPU_R4X00
4a0312fc 663 select SYS_HAS_CPU_R5000
c066a32a 664 select SYS_HAS_CPU_R10000
4a0312fc 665 select R5000_CPU_SCACHE
36a88530 666 select SYS_HAS_EARLY_PRINTK
ed5ba2fb 667 select SYS_SUPPORTS_32BIT_KERNEL
7d60717e 668 select SYS_SUPPORTS_64BIT_KERNEL
4a0312fc 669 select SYS_SUPPORTS_BIG_ENDIAN
797798c1 670 select SYS_SUPPORTS_HIGHMEM
5e83d430 671 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 672 help
14b36af4
TB
673 The SNI RM200/300/400 are MIPS-based machines manufactured by
674 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
1da177e4
LT
675 Technology and now in turn merged with Fujitsu. Say Y here to
676 support this machine type.
677
edcaf1a6
AN
678config MACH_TX39XX
679 bool "Toshiba TX39 series based machines"
5e83d430 680
edcaf1a6
AN
681config MACH_TX49XX
682 bool "Toshiba TX49 series based machines"
5e83d430 683
73b4390f
RB
684config MIKROTIK_RB532
685 bool "Mikrotik RB532 boards"
686 select CEVT_R4K
687 select CSRC_R4K
688 select DMA_NONCOHERENT
73b4390f
RB
689 select HW_HAS_PCI
690 select IRQ_CPU
691 select SYS_HAS_CPU_MIPS32_R1
692 select SYS_SUPPORTS_32BIT_KERNEL
693 select SYS_SUPPORTS_LITTLE_ENDIAN
694 select SWAP_IO_SPACE
695 select BOOT_RAW
d888e25b 696 select ARCH_REQUIRE_GPIOLIB
73b4390f
RB
697 help
698 Support the Mikrotik(tm) RouterBoard 532 series,
699 based on the IDT RC32434 SoC.
700
9ddebc46
DD
701config CAVIUM_OCTEON_SOC
702 bool "Cavium Networks Octeon SoC based boards"
a86c7f72
DD
703 select CEVT_R4K
704 select 64BIT_PHYS_ADDR
705 select DMA_COHERENT
706 select SYS_SUPPORTS_64BIT_KERNEL
707 select SYS_SUPPORTS_BIG_ENDIAN
f65aad41 708 select EDAC_SUPPORT
773cb77d 709 select SYS_SUPPORTS_HOTPLUG_CPU
a86c7f72 710 select SYS_HAS_EARLY_PRINTK
5e683389 711 select SYS_HAS_CPU_CAVIUM_OCTEON
a86c7f72 712 select SWAP_IO_SPACE
e8635b48 713 select HW_HAS_PCI
f00e001e 714 select ZONE_DMA32
340fbb8b
DD
715 select USB_ARCH_HAS_OHCI
716 select USB_ARCH_HAS_EHCI
465aaed0 717 select HOLES_IN_ZONE
99cab4bb 718 select ARCH_REQUIRE_GPIOLIB
a86c7f72
DD
719 help
720 This option supports all of the Octeon reference boards from Cavium
721 Networks. It builds a kernel that dynamically determines the Octeon
722 CPU type and supports all known board reference implementations.
723 Some of the supported boards are:
724 EBT3000
725 EBH3000
726 EBH3100
727 Thunder
728 Kodama
729 Hikari
730 Say Y here for most Octeon reference boards.
731
7f058e85
J
732config NLM_XLR_BOARD
733 bool "Netlogic XLR/XLS based systems"
7f058e85
J
734 select BOOT_ELF32
735 select NLM_COMMON
7f058e85
J
736 select SYS_HAS_CPU_XLR
737 select SYS_SUPPORTS_SMP
738 select HW_HAS_PCI
739 select SWAP_IO_SPACE
740 select SYS_SUPPORTS_32BIT_KERNEL
741 select SYS_SUPPORTS_64BIT_KERNEL
742 select 64BIT_PHYS_ADDR
743 select SYS_SUPPORTS_BIG_ENDIAN
744 select SYS_SUPPORTS_HIGHMEM
745 select DMA_COHERENT
746 select NR_CPUS_DEFAULT_32
747 select CEVT_R4K
748 select CSRC_R4K
749 select IRQ_CPU
b97215fd 750 select ZONE_DMA32 if 64BIT
7f058e85
J
751 select SYNC_R4K
752 select SYS_HAS_EARLY_PRINTK
f35574a3
J
753 select USB_ARCH_HAS_OHCI if USB_SUPPORT
754 select USB_ARCH_HAS_EHCI if USB_SUPPORT
8f0b0430
J
755 select SYS_SUPPORTS_ZBOOT
756 select SYS_SUPPORTS_ZBOOT_UART16550
7f058e85
J
757 help
758 Support for systems based on Netlogic XLR and XLS processors.
759 Say Y here if you have a XLR or XLS based board.
760
1c773ea4
J
761config NLM_XLP_BOARD
762 bool "Netlogic XLP based systems"
1c773ea4
J
763 select BOOT_ELF32
764 select NLM_COMMON
765 select SYS_HAS_CPU_XLP
766 select SYS_SUPPORTS_SMP
767 select HW_HAS_PCI
1c773ea4
J
768 select SYS_SUPPORTS_32BIT_KERNEL
769 select SYS_SUPPORTS_64BIT_KERNEL
770 select 64BIT_PHYS_ADDR
771 select SYS_SUPPORTS_BIG_ENDIAN
772 select SYS_SUPPORTS_LITTLE_ENDIAN
773 select SYS_SUPPORTS_HIGHMEM
774 select DMA_COHERENT
775 select NR_CPUS_DEFAULT_32
776 select CEVT_R4K
777 select CSRC_R4K
778 select IRQ_CPU
b97215fd 779 select ZONE_DMA32 if 64BIT
1c773ea4
J
780 select SYNC_R4K
781 select SYS_HAS_EARLY_PRINTK
2f6528e1 782 select USE_OF
8f0b0430
J
783 select SYS_SUPPORTS_ZBOOT
784 select SYS_SUPPORTS_ZBOOT_UART16550
1c773ea4
J
785 help
786 This board is based on Netlogic XLP Processor.
787 Say Y here if you have a XLP based board.
788
5e83d430 789endchoice
1da177e4 790
e8c7c482 791source "arch/mips/alchemy/Kconfig"
d4a67d9d 792source "arch/mips/ath79/Kconfig"
a656ffcb 793source "arch/mips/bcm47xx/Kconfig"
e7300d04 794source "arch/mips/bcm63xx/Kconfig"
5e83d430 795source "arch/mips/jazz/Kconfig"
5ebabe59 796source "arch/mips/jz4740/Kconfig"
8ec6d935 797source "arch/mips/lantiq/Kconfig"
1f21d2bd 798source "arch/mips/lasat/Kconfig"
0f3a05cb 799source "arch/mips/pmcs-msp71xx/Kconfig"
ae2b5bb6 800source "arch/mips/ralink/Kconfig"
29c48699 801source "arch/mips/sgi-ip27/Kconfig"
38b18f72 802source "arch/mips/sibyte/Kconfig"
22b1d707 803source "arch/mips/txx9/Kconfig"
5e83d430 804source "arch/mips/vr41xx/Kconfig"
a86c7f72 805source "arch/mips/cavium-octeon/Kconfig"
85749d24 806source "arch/mips/loongson/Kconfig"
ca585cf9 807source "arch/mips/loongson1/Kconfig"
7f058e85 808source "arch/mips/netlogic/Kconfig"
38b18f72 809
5e83d430
RB
810endmenu
811
1da177e4
LT
812config RWSEM_GENERIC_SPINLOCK
813 bool
814 default y
815
816config RWSEM_XCHGADD_ALGORITHM
817 bool
818
f0d1b0b3
DH
819config ARCH_HAS_ILOG2_U32
820 bool
821 default n
822
823config ARCH_HAS_ILOG2_U64
824 bool
825 default n
826
3c9ee7ef
AM
827config GENERIC_HWEIGHT
828 bool
829 default y
830
1da177e4
LT
831config GENERIC_CALIBRATE_DELAY
832 bool
833 default y
834
ae1e9130 835config SCHED_OMIT_FRAME_POINTER
1cc89038
AN
836 bool
837 default y
838
1da177e4
LT
839#
840# Select some configuration options automatically based on user selections.
841#
0e2794b0 842config FW_ARC
1da177e4 843 bool
1da177e4 844
61ed242d
RB
845config ARCH_MAY_HAVE_PC_FDC
846 bool
847
9267a30d
MSJ
848config BOOT_RAW
849 bool
850
217dd11e
RB
851config CEVT_BCM1480
852 bool
853
6457d9fc
YY
854config CEVT_DS1287
855 bool
856
1097c6ac
YY
857config CEVT_GT641XX
858 bool
859
42f77542
RB
860config CEVT_R4K
861 bool
862
0ab2b7d0
RG
863config CEVT_GIC
864 bool
865
217dd11e
RB
866config CEVT_SB1250
867 bool
868
229f773e
AN
869config CEVT_TXX9
870 bool
871
217dd11e
RB
872config CSRC_BCM1480
873 bool
874
4247417d
YY
875config CSRC_IOASIC
876 bool
877
940f6b48
RB
878config CSRC_R4K
879 bool
880
778eeb1b
SH
881config CSRC_GIC
882 bool
883
217dd11e
RB
884config CSRC_SB1250
885 bool
886
a9aec7fe 887config GPIO_TXX9
7444a72e 888 select ARCH_REQUIRE_GPIOLIB
a9aec7fe
AN
889 bool
890
0e2794b0 891config FW_CFE
df78b5c8
AJ
892 bool
893
4bafad92
FT
894config ARCH_DMA_ADDR_T_64BIT
895 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
896
4ce588cd 897config DMA_COHERENT
1da177e4
LT
898 bool
899
4ce588cd
RB
900config DMA_NONCOHERENT
901 bool
e1e02b32 902 select NEED_DMA_MAP_STATE
4ce588cd 903
e1e02b32 904config NEED_DMA_MAP_STATE
1da177e4
LT
905 bool
906
36a88530 907config SYS_HAS_EARLY_PRINTK
1da177e4 908 bool
1da177e4 909
dbb74540 910config HOTPLUG_CPU
1b2bc75c 911 bool "Support for hot-pluggable CPUs"
40b31360 912 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
1b2bc75c
RB
913 help
914 Say Y here to allow turning CPUs off and on. CPUs can be
915 controlled through /sys/devices/system/cpu.
916 (Note: power management support will enable this option
917 automatically on SMP systems. )
918 Say N if you want to disable CPU hotplug.
919
920config SYS_SUPPORTS_HOTPLUG_CPU
dbb74540 921 bool
dbb74540 922
1da177e4
LT
923config I8259
924 bool
1da177e4 925
1da177e4
LT
926config MIPS_BONITO64
927 bool
1da177e4
LT
928
929config MIPS_MSC
930 bool
1da177e4 931
1f21d2bd
BM
932config MIPS_NILE4
933 bool
934
39b8d525
RB
935config SYNC_R4K
936 bool
937
487d70d0
GJ
938config MIPS_MACHINE
939 def_bool n
940
d388d685
MR
941config NO_IOPORT
942 def_bool n
943
8313da30
RB
944config GENERIC_ISA_DMA
945 bool
946 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
a35bee8a 947 select ISA_DMA_API
8313da30 948
aa414dff
RB
949config GENERIC_ISA_DMA_SUPPORT_BROKEN
950 bool
8313da30 951 select GENERIC_ISA_DMA
aa414dff 952
a35bee8a
NK
953config ISA_DMA_API
954 bool
955
465aaed0
DD
956config HOLES_IN_ZONE
957 bool
958
5e83d430 959#
6b2aac42 960# Endianness selection. Sufficiently obscure so many users don't know what to
5e83d430
RB
961# answer,so we try hard to limit the available choices. Also the use of a
962# choice statement should be more obvious to the user.
963#
964choice
6b2aac42 965 prompt "Endianness selection"
1da177e4
LT
966 help
967 Some MIPS machines can be configured for either little or big endian
5e83d430 968 byte order. These modes require different kernels and a different
3cb2fccc 969 Linux distribution. In general there is one preferred byteorder for a
5e83d430 970 particular system but some systems are just as commonly used in the
3dde6ad8 971 one or the other endianness.
5e83d430
RB
972
973config CPU_BIG_ENDIAN
974 bool "Big endian"
975 depends on SYS_SUPPORTS_BIG_ENDIAN
976
977config CPU_LITTLE_ENDIAN
978 bool "Little endian"
979 depends on SYS_SUPPORTS_LITTLE_ENDIAN
5e83d430
RB
980
981endchoice
982
22b0763a
DD
983config EXPORT_UASM
984 bool
985
2116245e
RB
986config SYS_SUPPORTS_APM_EMULATION
987 bool
988
5e83d430
RB
989config SYS_SUPPORTS_BIG_ENDIAN
990 bool
991
992config SYS_SUPPORTS_LITTLE_ENDIAN
993 bool
1da177e4 994
9cffd154
DD
995config SYS_SUPPORTS_HUGETLBFS
996 bool
997 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
998 default y
999
aa1762f4
DD
1000config MIPS_HUGE_TLB_SUPPORT
1001 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1002
1da177e4
LT
1003config IRQ_CPU
1004 bool
1005
1006config IRQ_CPU_RM7K
1007 bool
1008
9267a30d
MSJ
1009config IRQ_MSP_SLP
1010 bool
1011
1012config IRQ_MSP_CIC
1013 bool
1014
8420fd00
AN
1015config IRQ_TXX9
1016 bool
1017
d5ab1a69
YY
1018config IRQ_GT641XX
1019 bool
1020
39b8d525
RB
1021config IRQ_GIC
1022 bool
1023
252161ec 1024config PCI_GT64XXX_PCI0
1da177e4 1025 bool
1da177e4 1026
9267a30d
MSJ
1027config NO_EXCEPT_FILL
1028 bool
1029
a83860c2
RB
1030config SOC_EMMA2RH
1031 bool
1032 select CEVT_R4K
1033 select CSRC_R4K
1034 select DMA_NONCOHERENT
1035 select IRQ_CPU
1036 select SWAP_IO_SPACE
1037 select SYS_HAS_CPU_R5500
1038 select SYS_SUPPORTS_32BIT_KERNEL
1039 select SYS_SUPPORTS_64BIT_KERNEL
1040 select SYS_SUPPORTS_BIG_ENDIAN
1041
edb6310a
DL
1042config SOC_PNX833X
1043 bool
1044 select CEVT_R4K
1045 select CSRC_R4K
1046 select IRQ_CPU
1047 select DMA_NONCOHERENT
1048 select SYS_HAS_CPU_MIPS32_R2
1049 select SYS_SUPPORTS_32BIT_KERNEL
1050 select SYS_SUPPORTS_LITTLE_ENDIAN
1051 select SYS_SUPPORTS_BIG_ENDIAN
edb6310a
DL
1052 select CPU_MIPSR2_IRQ_VI
1053
1054config SOC_PNX8335
1055 bool
1056 select SOC_PNX833X
1057
1da177e4
LT
1058config SWAP_IO_SPACE
1059 bool
1060
e2defae5
TB
1061config SGI_HAS_INDYDOG
1062 bool
1063
5b438c44
TB
1064config SGI_HAS_HAL2
1065 bool
1066
e2defae5
TB
1067config SGI_HAS_SEEQ
1068 bool
1069
1070config SGI_HAS_WD93
1071 bool
1072
1073config SGI_HAS_ZILOG
1074 bool
1075
1076config SGI_HAS_I8042
1077 bool
1078
1079config DEFAULT_SGI_PARTITION
1080 bool
1081
0e2794b0 1082config FW_ARC32
5e83d430
RB
1083 bool
1084
aaa9fad3 1085config FW_SNIPROM
231a35d3
TB
1086 bool
1087
1da177e4
LT
1088config BOOT_ELF32
1089 bool
1da177e4
LT
1090
1091config MIPS_L1_CACHE_SHIFT
1092 int
80fb55a9 1093 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL || SOC_RT288X
0db2b74e 1094 default "6" if MIPS_CPU_SCACHE
a86c7f72 1095 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1da177e4
LT
1096 default "5"
1097
1da177e4
LT
1098config HAVE_STD_PC_SERIAL_PORT
1099 bool
1100
1da177e4
LT
1101config ARC_CONSOLE
1102 bool "ARC console support"
e2defae5 1103 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1da177e4
LT
1104
1105config ARC_MEMORY
1106 bool
14b36af4 1107 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1da177e4
LT
1108 default y
1109
1110config ARC_PROMLIB
1111 bool
e2defae5 1112 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1da177e4
LT
1113 default y
1114
0e2794b0 1115config FW_ARC64
1da177e4 1116 bool
1da177e4
LT
1117
1118config BOOT_ELF64
1119 bool
1da177e4 1120
1da177e4
LT
1121menu "CPU selection"
1122
1123choice
1124 prompt "CPU type"
1125 default CPU_R4X00
1126
3702bba5
WZ
1127config CPU_LOONGSON2E
1128 bool "Loongson 2E"
1129 depends on SYS_HAS_CPU_LOONGSON2E
1130 select CPU_LOONGSON2
2a21c730
FZ
1131 help
1132 The Loongson 2E processor implements the MIPS III instruction set
1133 with many extensions.
1134
25985edc 1135 It has an internal FPGA northbridge, which is compatible to
6f7a251a
WZ
1136 bonito64.
1137
1138config CPU_LOONGSON2F
1139 bool "Loongson 2F"
1140 depends on SYS_HAS_CPU_LOONGSON2F
1141 select CPU_LOONGSON2
c197da91 1142 select ARCH_REQUIRE_GPIOLIB
6f7a251a
WZ
1143 help
1144 The Loongson 2F processor implements the MIPS III instruction set
1145 with many extensions.
1146
1147 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1148 have a similar programming interface with FPGA northbridge used in
1149 Loongson2E.
1150
ca585cf9
KC
1151config CPU_LOONGSON1B
1152 bool "Loongson 1B"
1153 depends on SYS_HAS_CPU_LOONGSON1B
1154 select CPU_LOONGSON1
1155 help
1156 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1157 release 2 instruction set.
1158
6e760c8d
RB
1159config CPU_MIPS32_R1
1160 bool "MIPS32 Release 1"
7cf8053b 1161 depends on SYS_HAS_CPU_MIPS32_R1
6e760c8d 1162 select CPU_HAS_PREFETCH
797798c1 1163 select CPU_SUPPORTS_32BIT_KERNEL
ec28f306 1164 select CPU_SUPPORTS_HIGHMEM
1e5f1caa 1165 help
5e83d430 1166 Choose this option to build a kernel for release 1 or later of the
1e5f1caa
RB
1167 MIPS32 architecture. Most modern embedded systems with a 32-bit
1168 MIPS processor are based on a MIPS32 processor. If you know the
1169 specific type of processor in your system, choose those that one
1170 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1171 Release 2 of the MIPS32 architecture is available since several
1172 years so chances are you even have a MIPS32 Release 2 processor
1173 in which case you should choose CPU_MIPS32_R2 instead for better
1174 performance.
1175
1176config CPU_MIPS32_R2
1177 bool "MIPS32 Release 2"
7cf8053b 1178 depends on SYS_HAS_CPU_MIPS32_R2
1e5f1caa 1179 select CPU_HAS_PREFETCH
797798c1 1180 select CPU_SUPPORTS_32BIT_KERNEL
ec28f306 1181 select CPU_SUPPORTS_HIGHMEM
2235a54d 1182 select HAVE_KVM
6e760c8d 1183 help
5e83d430 1184 Choose this option to build a kernel for release 2 or later of the
6e760c8d
RB
1185 MIPS32 architecture. Most modern embedded systems with a 32-bit
1186 MIPS processor are based on a MIPS32 processor. If you know the
1187 specific type of processor in your system, choose those that one
1188 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1189
1190config CPU_MIPS64_R1
1191 bool "MIPS64 Release 1"
7cf8053b 1192 depends on SYS_HAS_CPU_MIPS64_R1
797798c1 1193 select CPU_HAS_PREFETCH
ed5ba2fb
YY
1194 select CPU_SUPPORTS_32BIT_KERNEL
1195 select CPU_SUPPORTS_64BIT_KERNEL
ec28f306 1196 select CPU_SUPPORTS_HIGHMEM
9cffd154 1197 select CPU_SUPPORTS_HUGEPAGES
6e760c8d
RB
1198 help
1199 Choose this option to build a kernel for release 1 or later of the
1200 MIPS64 architecture. Many modern embedded systems with a 64-bit
1201 MIPS processor are based on a MIPS64 processor. If you know the
1202 specific type of processor in your system, choose those that one
1203 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1e5f1caa
RB
1204 Release 2 of the MIPS64 architecture is available since several
1205 years so chances are you even have a MIPS64 Release 2 processor
1206 in which case you should choose CPU_MIPS64_R2 instead for better
1207 performance.
1208
1209config CPU_MIPS64_R2
1210 bool "MIPS64 Release 2"
7cf8053b 1211 depends on SYS_HAS_CPU_MIPS64_R2
797798c1 1212 select CPU_HAS_PREFETCH
1e5f1caa
RB
1213 select CPU_SUPPORTS_32BIT_KERNEL
1214 select CPU_SUPPORTS_64BIT_KERNEL
ec28f306 1215 select CPU_SUPPORTS_HIGHMEM
9cffd154 1216 select CPU_SUPPORTS_HUGEPAGES
1e5f1caa
RB
1217 help
1218 Choose this option to build a kernel for release 2 or later of the
1219 MIPS64 architecture. Many modern embedded systems with a 64-bit
1220 MIPS processor are based on a MIPS64 processor. If you know the
1221 specific type of processor in your system, choose those that one
1222 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1da177e4
LT
1223
1224config CPU_R3000
1225 bool "R3000"
7cf8053b 1226 depends on SYS_HAS_CPU_R3000
f7062ddb 1227 select CPU_HAS_WB
ed5ba2fb 1228 select CPU_SUPPORTS_32BIT_KERNEL
797798c1 1229 select CPU_SUPPORTS_HIGHMEM
1da177e4
LT
1230 help
1231 Please make sure to pick the right CPU type. Linux/MIPS is not
1232 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1233 *not* work on R4000 machines and vice versa. However, since most
1234 of the supported machines have an R4000 (or similar) CPU, R4x00
1235 might be a safe bet. If the resulting kernel does not work,
1236 try to recompile with R3000.
1237
1238config CPU_TX39XX
1239 bool "R39XX"
7cf8053b 1240 depends on SYS_HAS_CPU_TX39XX
ed5ba2fb 1241 select CPU_SUPPORTS_32BIT_KERNEL
1da177e4
LT
1242
1243config CPU_VR41XX
1244 bool "R41xx"
7cf8053b 1245 depends on SYS_HAS_CPU_VR41XX
ed5ba2fb
YY
1246 select CPU_SUPPORTS_32BIT_KERNEL
1247 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4 1248 help
5e83d430 1249 The options selects support for the NEC VR4100 series of processors.
1da177e4
LT
1250 Only choose this option if you have one of these processors as a
1251 kernel built with this option will not run on any other type of
1252 processor or vice versa.
1253
1254config CPU_R4300
1255 bool "R4300"
7cf8053b 1256 depends on SYS_HAS_CPU_R4300
ed5ba2fb
YY
1257 select CPU_SUPPORTS_32BIT_KERNEL
1258 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4
LT
1259 help
1260 MIPS Technologies R4300-series processors.
1261
1262config CPU_R4X00
1263 bool "R4x00"
7cf8053b 1264 depends on SYS_HAS_CPU_R4X00
ed5ba2fb
YY
1265 select CPU_SUPPORTS_32BIT_KERNEL
1266 select CPU_SUPPORTS_64BIT_KERNEL
970d032f 1267 select CPU_SUPPORTS_HUGEPAGES
1da177e4
LT
1268 help
1269 MIPS Technologies R4000-series processors other than 4300, including
1270 the R4000, R4400, R4600, and 4700.
1271
1272config CPU_TX49XX
1273 bool "R49XX"
7cf8053b 1274 depends on SYS_HAS_CPU_TX49XX
de862b48 1275 select CPU_HAS_PREFETCH
ed5ba2fb
YY
1276 select CPU_SUPPORTS_32BIT_KERNEL
1277 select CPU_SUPPORTS_64BIT_KERNEL
970d032f 1278 select CPU_SUPPORTS_HUGEPAGES
1da177e4
LT
1279
1280config CPU_R5000
1281 bool "R5000"
7cf8053b 1282 depends on SYS_HAS_CPU_R5000
ed5ba2fb
YY
1283 select CPU_SUPPORTS_32BIT_KERNEL
1284 select CPU_SUPPORTS_64BIT_KERNEL
970d032f 1285 select CPU_SUPPORTS_HUGEPAGES
1da177e4
LT
1286 help
1287 MIPS Technologies R5000-series processors other than the Nevada.
1288
1289config CPU_R5432
1290 bool "R5432"
7cf8053b 1291 depends on SYS_HAS_CPU_R5432
5e83d430
RB
1292 select CPU_SUPPORTS_32BIT_KERNEL
1293 select CPU_SUPPORTS_64BIT_KERNEL
970d032f 1294 select CPU_SUPPORTS_HUGEPAGES
1da177e4 1295
542c1020
SK
1296config CPU_R5500
1297 bool "R5500"
1298 depends on SYS_HAS_CPU_R5500
542c1020
SK
1299 select CPU_SUPPORTS_32BIT_KERNEL
1300 select CPU_SUPPORTS_64BIT_KERNEL
9cffd154 1301 select CPU_SUPPORTS_HUGEPAGES
542c1020
SK
1302 help
1303 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1304 instruction set.
1305
1da177e4
LT
1306config CPU_R6000
1307 bool "R6000"
7cf8053b 1308 depends on SYS_HAS_CPU_R6000
ed5ba2fb 1309 select CPU_SUPPORTS_32BIT_KERNEL
1da177e4
LT
1310 help
1311 MIPS Technologies R6000 and R6000A series processors. Note these
c09b47d8 1312 processors are extremely rare and the support for them is incomplete.
1da177e4
LT
1313
1314config CPU_NEVADA
1315 bool "RM52xx"
7cf8053b 1316 depends on SYS_HAS_CPU_NEVADA
ed5ba2fb
YY
1317 select CPU_SUPPORTS_32BIT_KERNEL
1318 select CPU_SUPPORTS_64BIT_KERNEL
970d032f 1319 select CPU_SUPPORTS_HUGEPAGES
1da177e4
LT
1320 help
1321 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1322
1323config CPU_R8000
1324 bool "R8000"
7cf8053b 1325 depends on SYS_HAS_CPU_R8000
5e83d430 1326 select CPU_HAS_PREFETCH
ed5ba2fb 1327 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4
LT
1328 help
1329 MIPS Technologies R8000 processors. Note these processors are
1330 uncommon and the support for them is incomplete.
1331
1332config CPU_R10000
1333 bool "R10000"
7cf8053b 1334 depends on SYS_HAS_CPU_R10000
5e83d430 1335 select CPU_HAS_PREFETCH
ed5ba2fb
YY
1336 select CPU_SUPPORTS_32BIT_KERNEL
1337 select CPU_SUPPORTS_64BIT_KERNEL
797798c1 1338 select CPU_SUPPORTS_HIGHMEM
970d032f 1339 select CPU_SUPPORTS_HUGEPAGES
1da177e4
LT
1340 help
1341 MIPS Technologies R10000-series processors.
1342
1343config CPU_RM7000
1344 bool "RM7000"
7cf8053b 1345 depends on SYS_HAS_CPU_RM7000
5e83d430 1346 select CPU_HAS_PREFETCH
ed5ba2fb
YY
1347 select CPU_SUPPORTS_32BIT_KERNEL
1348 select CPU_SUPPORTS_64BIT_KERNEL
797798c1 1349 select CPU_SUPPORTS_HIGHMEM
970d032f 1350 select CPU_SUPPORTS_HUGEPAGES
1da177e4
LT
1351
1352config CPU_SB1
1353 bool "SB1"
7cf8053b 1354 depends on SYS_HAS_CPU_SB1
ed5ba2fb
YY
1355 select CPU_SUPPORTS_32BIT_KERNEL
1356 select CPU_SUPPORTS_64BIT_KERNEL
797798c1 1357 select CPU_SUPPORTS_HIGHMEM
970d032f 1358 select CPU_SUPPORTS_HUGEPAGES
0004a9df 1359 select WEAK_ORDERING
1da177e4 1360
a86c7f72
DD
1361config CPU_CAVIUM_OCTEON
1362 bool "Cavium Octeon processor"
5e683389 1363 depends on SYS_HAS_CPU_CAVIUM_OCTEON
7ee91de4 1364 select ARCH_SPARSEMEM_ENABLE
a86c7f72
DD
1365 select CPU_HAS_PREFETCH
1366 select CPU_SUPPORTS_64BIT_KERNEL
1367 select SYS_SUPPORTS_SMP
1368 select NR_CPUS_DEFAULT_16
1369 select WEAK_ORDERING
a86c7f72 1370 select CPU_SUPPORTS_HIGHMEM
9cffd154 1371 select CPU_SUPPORTS_HUGEPAGES
7ed18152
DD
1372 select LIBFDT
1373 select USE_OF
9296d94d 1374 select USB_EHCI_BIG_ENDIAN_MMIO
a86c7f72
DD
1375 help
1376 The Cavium Octeon processor is a highly integrated chip containing
1377 many ethernet hardware widgets for networking tasks. The processor
1378 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1379 Full details can be found at http://www.caviumnetworks.com.
1380
c1c0c461
KC
1381config CPU_BMIPS3300
1382 bool "BMIPS3300"
1383 depends on SYS_HAS_CPU_BMIPS3300
1bbb6c1b 1384 select CPU_BMIPS
c1c0c461
KC
1385 help
1386 Broadcom BMIPS3300 processors.
1387
1388config CPU_BMIPS4350
1389 bool "BMIPS4350"
1390 depends on SYS_HAS_CPU_BMIPS4350
1bbb6c1b 1391 select CPU_BMIPS
c1c0c461
KC
1392 select SYS_SUPPORTS_SMP
1393 select SYS_SUPPORTS_HOTPLUG_CPU
c1c0c461
KC
1394 help
1395 Broadcom BMIPS4350 ("VIPER") processors.
1396
1397config CPU_BMIPS4380
1398 bool "BMIPS4380"
1399 depends on SYS_HAS_CPU_BMIPS4380
1bbb6c1b 1400 select CPU_BMIPS
c1c0c461
KC
1401 select SYS_SUPPORTS_SMP
1402 select SYS_SUPPORTS_HOTPLUG_CPU
c1c0c461
KC
1403 help
1404 Broadcom BMIPS4380 processors.
1405
1406config CPU_BMIPS5000
1407 bool "BMIPS5000"
1408 depends on SYS_HAS_CPU_BMIPS5000
1bbb6c1b 1409 select CPU_BMIPS
c1c0c461 1410 select CPU_SUPPORTS_HIGHMEM
1bbb6c1b 1411 select MIPS_CPU_SCACHE
c1c0c461
KC
1412 select SYS_SUPPORTS_SMP
1413 select SYS_SUPPORTS_HOTPLUG_CPU
c1c0c461
KC
1414 help
1415 Broadcom BMIPS5000 processors.
1416
7f058e85
J
1417config CPU_XLR
1418 bool "Netlogic XLR SoC"
1419 depends on SYS_HAS_CPU_XLR
1420 select CPU_SUPPORTS_32BIT_KERNEL
1421 select CPU_SUPPORTS_64BIT_KERNEL
1422 select CPU_SUPPORTS_HIGHMEM
970d032f 1423 select CPU_SUPPORTS_HUGEPAGES
7f058e85
J
1424 select WEAK_ORDERING
1425 select WEAK_REORDERING_BEYOND_LLSC
7f058e85
J
1426 help
1427 Netlogic Microsystems XLR/XLS processors.
1c773ea4
J
1428
1429config CPU_XLP
1430 bool "Netlogic XLP SoC"
1431 depends on SYS_HAS_CPU_XLP
1432 select CPU_SUPPORTS_32BIT_KERNEL
1433 select CPU_SUPPORTS_64BIT_KERNEL
1434 select CPU_SUPPORTS_HIGHMEM
1c773ea4
J
1435 select WEAK_ORDERING
1436 select WEAK_REORDERING_BEYOND_LLSC
1437 select CPU_HAS_PREFETCH
d6504846 1438 select CPU_MIPSR2
1c773ea4
J
1439 help
1440 Netlogic Microsystems XLP processors.
1da177e4
LT
1441endchoice
1442
622844bf
WZ
1443if CPU_LOONGSON2F
1444config CPU_NOP_WORKAROUNDS
1445 bool
1446
1447config CPU_JUMP_WORKAROUNDS
1448 bool
1449
1450config CPU_LOONGSON2F_WORKAROUNDS
1451 bool "Loongson 2F Workarounds"
1452 default y
1453 select CPU_NOP_WORKAROUNDS
1454 select CPU_JUMP_WORKAROUNDS
1455 help
1456 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1457 require workarounds. Without workarounds the system may hang
1458 unexpectedly. For more information please refer to the gas
1459 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1460
1461 Loongson 2F03 and later have fixed these issues and no workarounds
1462 are needed. The workarounds have no significant side effect on them
1463 but may decrease the performance of the system so this option should
1464 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1465 systems.
1466
1467 If unsure, please say Y.
1468endif # CPU_LOONGSON2F
1469
1b93b3c3
WZ
1470config SYS_SUPPORTS_ZBOOT
1471 bool
1472 select HAVE_KERNEL_GZIP
1473 select HAVE_KERNEL_BZIP2
31c4867d 1474 select HAVE_KERNEL_LZ4
1b93b3c3 1475 select HAVE_KERNEL_LZMA
fe1d45e0 1476 select HAVE_KERNEL_LZO
4e23eb63 1477 select HAVE_KERNEL_XZ
1b93b3c3
WZ
1478
1479config SYS_SUPPORTS_ZBOOT_UART16550
1480 bool
1481 select SYS_SUPPORTS_ZBOOT
1482
3702bba5
WZ
1483config CPU_LOONGSON2
1484 bool
1485 select CPU_SUPPORTS_32BIT_KERNEL
1486 select CPU_SUPPORTS_64BIT_KERNEL
1487 select CPU_SUPPORTS_HIGHMEM
970d032f 1488 select CPU_SUPPORTS_HUGEPAGES
3702bba5 1489
ca585cf9
KC
1490config CPU_LOONGSON1
1491 bool
1492 select CPU_MIPS32
1493 select CPU_MIPSR2
1494 select CPU_HAS_PREFETCH
1495 select CPU_SUPPORTS_32BIT_KERNEL
1496 select CPU_SUPPORTS_HIGHMEM
1497
1bbb6c1b
KC
1498config CPU_BMIPS
1499 bool
1500 select CPU_MIPS32
1501 select CPU_SUPPORTS_32BIT_KERNEL
1502 select DMA_NONCOHERENT
1503 select IRQ_CPU
1504 select SWAP_IO_SPACE
1505 select WEAK_ORDERING
1506
3702bba5 1507config SYS_HAS_CPU_LOONGSON2E
2a21c730
FZ
1508 bool
1509
6f7a251a
WZ
1510config SYS_HAS_CPU_LOONGSON2F
1511 bool
55045ff5
WZ
1512 select CPU_SUPPORTS_CPUFREQ
1513 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
22f1fdfd 1514 select CPU_SUPPORTS_UNCACHED_ACCELERATED
6f7a251a 1515
ca585cf9
KC
1516config SYS_HAS_CPU_LOONGSON1B
1517 bool
1518
7cf8053b
RB
1519config SYS_HAS_CPU_MIPS32_R1
1520 bool
1521
1522config SYS_HAS_CPU_MIPS32_R2
1523 bool
1524
1525config SYS_HAS_CPU_MIPS64_R1
1526 bool
1527
1528config SYS_HAS_CPU_MIPS64_R2
1529 bool
1530
1531config SYS_HAS_CPU_R3000
1532 bool
1533
1534config SYS_HAS_CPU_TX39XX
1535 bool
1536
1537config SYS_HAS_CPU_VR41XX
1538 bool
1539
1540config SYS_HAS_CPU_R4300
1541 bool
1542
1543config SYS_HAS_CPU_R4X00
1544 bool
1545
1546config SYS_HAS_CPU_TX49XX
1547 bool
1548
1549config SYS_HAS_CPU_R5000
1550 bool
1551
1552config SYS_HAS_CPU_R5432
1553 bool
1554
542c1020
SK
1555config SYS_HAS_CPU_R5500
1556 bool
1557
7cf8053b
RB
1558config SYS_HAS_CPU_R6000
1559 bool
1560
1561config SYS_HAS_CPU_NEVADA
1562 bool
1563
1564config SYS_HAS_CPU_R8000
1565 bool
1566
1567config SYS_HAS_CPU_R10000
1568 bool
1569
1570config SYS_HAS_CPU_RM7000
1571 bool
1572
7cf8053b
RB
1573config SYS_HAS_CPU_SB1
1574 bool
1575
5e683389
DD
1576config SYS_HAS_CPU_CAVIUM_OCTEON
1577 bool
1578
c1c0c461
KC
1579config SYS_HAS_CPU_BMIPS3300
1580 bool
1581
1582config SYS_HAS_CPU_BMIPS4350
1583 bool
1584
1585config SYS_HAS_CPU_BMIPS4380
1586 bool
1587
1588config SYS_HAS_CPU_BMIPS5000
1589 bool
1590
7f058e85
J
1591config SYS_HAS_CPU_XLR
1592 bool
1593
1c773ea4
J
1594config SYS_HAS_CPU_XLP
1595 bool
1596
17099b11
RB
1597#
1598# CPU may reorder R->R, R->W, W->R, W->W
1599# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1600#
0004a9df
RB
1601config WEAK_ORDERING
1602 bool
17099b11
RB
1603
1604#
1605# CPU may reorder reads and writes beyond LL/SC
1606# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1607#
1608config WEAK_REORDERING_BEYOND_LLSC
1609 bool
5e83d430
RB
1610endmenu
1611
1612#
c09b47d8 1613# These two indicate any level of the MIPS32 and MIPS64 architecture
5e83d430
RB
1614#
1615config CPU_MIPS32
1616 bool
1617 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1618
1619config CPU_MIPS64
1620 bool
1621 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1622
1623#
c09b47d8 1624# These two indicate the revision of the architecture, either Release 1 or Release 2
5e83d430
RB
1625#
1626config CPU_MIPSR1
1627 bool
1628 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1629
1630config CPU_MIPSR2
1631 bool
a86c7f72 1632 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
5e83d430
RB
1633
1634config SYS_SUPPORTS_32BIT_KERNEL
1635 bool
1636config SYS_SUPPORTS_64BIT_KERNEL
1637 bool
1638config CPU_SUPPORTS_32BIT_KERNEL
1639 bool
1640config CPU_SUPPORTS_64BIT_KERNEL
1641 bool
55045ff5
WZ
1642config CPU_SUPPORTS_CPUFREQ
1643 bool
1644config CPU_SUPPORTS_ADDRWINCFG
1645 bool
9cffd154
DD
1646config CPU_SUPPORTS_HUGEPAGES
1647 bool
22f1fdfd
WZ
1648config CPU_SUPPORTS_UNCACHED_ACCELERATED
1649 bool
82622284
DD
1650config MIPS_PGD_C0_CONTEXT
1651 bool
d6504846 1652 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
5e83d430 1653
8192c9ea
DD
1654#
1655# Set to y for ptrace access to watch registers.
1656#
1657config HARDWARE_WATCHPOINTS
1658 bool
f839490a 1659 default y if CPU_MIPSR1 || CPU_MIPSR2
8192c9ea 1660
5e83d430
RB
1661menu "Kernel type"
1662
1663choice
5e83d430
RB
1664 prompt "Kernel code model"
1665 help
1666 You should only select this option if you have a workload that
1667 actually benefits from 64-bit processing or if your machine has
1668 large memory. You will only be presented a single option in this
1669 menu if your system does not support both 32-bit and 64-bit kernels.
1670
1671config 32BIT
1672 bool "32-bit kernel"
1673 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1674 select TRAD_SIGNALS
1675 help
1676 Select this option if you want to build a 32-bit kernel.
1677config 64BIT
1678 bool "64-bit kernel"
1679 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1680 help
1681 Select this option if you want to build a 64-bit kernel.
1682
1683endchoice
1684
2235a54d
SL
1685config KVM_GUEST
1686 bool "KVM Guest Kernel"
f2a5b1d7 1687 depends on BROKEN_ON_SMP
2235a54d
SL
1688 help
1689 Select this option if building a guest kernel for KVM (Trap & Emulate) mode
1690
1691config KVM_HOST_FREQ
1692 int "KVM Host Processor Frequency (MHz)"
1693 depends on KVM_GUEST
1694 default 500
1695 help
1696 Select this option if building a guest kernel for KVM to skip
1697 RTC emulation when determining guest CPU Frequency. Instead, the guest
1698 processor frequency is automatically derived from the host frequency.
1699
1da177e4
LT
1700choice
1701 prompt "Kernel page size"
1702 default PAGE_SIZE_4KB
1703
1704config PAGE_SIZE_4KB
1705 bool "4kB"
315fe625 1706 depends on !CPU_LOONGSON2
1da177e4
LT
1707 help
1708 This option select the standard 4kB Linux page size. On some
1709 R3000-family processors this is the only available page size. Using
1710 4kB page size will minimize memory consumption and is therefore
1711 recommended for low memory systems.
1712
1713config PAGE_SIZE_8KB
1714 bool "8kB"
7d60717e 1715 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
1da177e4
LT
1716 help
1717 Using 8kB page size will result in higher performance kernel at
1718 the price of higher memory consumption. This option is available
c52399be
RB
1719 only on R8000 and cnMIPS processors. Note that you will need a
1720 suitable Linux distribution to support this.
1da177e4
LT
1721
1722config PAGE_SIZE_16KB
1723 bool "16kB"
714bfad6 1724 depends on !CPU_R3000 && !CPU_TX39XX
1da177e4
LT
1725 help
1726 Using 16kB page size will result in higher performance kernel at
1727 the price of higher memory consumption. This option is available on
714bfad6
RB
1728 all non-R3000 family processors. Note that you will need a suitable
1729 Linux distribution to support this.
1da177e4 1730
c52399be
RB
1731config PAGE_SIZE_32KB
1732 bool "32kB"
1733 depends on CPU_CAVIUM_OCTEON
1734 help
1735 Using 32kB page size will result in higher performance kernel at
1736 the price of higher memory consumption. This option is available
1737 only on cnMIPS cores. Note that you will need a suitable Linux
1738 distribution to support this.
1739
1da177e4
LT
1740config PAGE_SIZE_64KB
1741 bool "64kB"
7d60717e 1742 depends on !CPU_R3000 && !CPU_TX39XX
1da177e4
LT
1743 help
1744 Using 64kB page size will result in higher performance kernel at
1745 the price of higher memory consumption. This option is available on
1746 all non-R3000 family processor. Not that at the time of this
714bfad6 1747 writing this option is still high experimental.
1da177e4
LT
1748
1749endchoice
1750
c9bace7c
DD
1751config FORCE_MAX_ZONEORDER
1752 int "Maximum zone order"
85f993b8
DD
1753 range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
1754 default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
1755 range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
1756 default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
1757 range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
1758 default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
c9bace7c
DD
1759 range 11 64
1760 default "11"
1761 help
1762 The kernel memory allocator divides physically contiguous memory
1763 blocks into "zones", where each zone is a power of two number of
1764 pages. This option selects the largest power of two that the kernel
1765 keeps in the memory allocator. If you need to allocate very large
1766 blocks of physically contiguous memory, then you may need to
1767 increase this value.
1768
1769 This config option is actually maximum order plus one. For example,
1770 a value of 11 means that the largest free memory block is 2^10 pages.
1771
1772 The page size is not necessarily 4KB. Keep this in mind
1773 when choosing a value for this option.
1774
0ab2b7d0
RG
1775config CEVT_GIC
1776 bool "Use GIC global counter for clock events"
1777 depends on IRQ_GIC && !(MIPS_SEAD3 || MIPS_MT_SMTC)
1778 help
1779 Use the GIC global counter for the clock events. The R4K clock
1780 event driver is always present, so if the platform ends up not
1781 detecting a GIC, it will fall back to the R4K timer for the
1782 generation of clock events.
1783
1da177e4
LT
1784config BOARD_SCACHE
1785 bool
1786
1787config IP22_CPU_SCACHE
1788 bool
1789 select BOARD_SCACHE
1790
9318c51a
CD
1791#
1792# Support for a MIPS32 / MIPS64 style S-caches
1793#
1794config MIPS_CPU_SCACHE
1795 bool
1796 select BOARD_SCACHE
1797
1da177e4
LT
1798config R5000_CPU_SCACHE
1799 bool
1800 select BOARD_SCACHE
1801
1802config RM7000_CPU_SCACHE
1803 bool
1804 select BOARD_SCACHE
1805
1806config SIBYTE_DMA_PAGEOPS
1807 bool "Use DMA to clear/copy pages"
1808 depends on CPU_SB1
1809 help
1810 Instead of using the CPU to zero and copy pages, use a Data Mover
1811 channel. These DMA channels are otherwise unused by the standard
1812 SiByte Linux port. Seems to give a small performance benefit.
1813
1814config CPU_HAS_PREFETCH
c8094b53 1815 bool
1da177e4 1816
3165c846
FF
1817config CPU_GENERIC_DUMP_TLB
1818 bool
1819 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1820
91405eb6
FF
1821config CPU_R4K_FPU
1822 bool
1823 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1824
62cedc4f
FF
1825config CPU_R4K_CACHE_TLB
1826 bool
1827 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1828
340ee4b9
RB
1829choice
1830 prompt "MIPS MT options"
f41ae0b2
RB
1831
1832config MIPS_MT_DISABLED
1833 bool "Disable multithreading support."
1834 help
1835 Use this option if your workload can't take advantage of
1836 MIPS hardware multithreading support. On systems that don't have
1837 the option of an MT-enabled processor this option will be the only
1838 option in this menu.
340ee4b9 1839
59d6ab86
RB
1840config MIPS_MT_SMP
1841 bool "Use 1 TC on each available VPE for SMP"
f41ae0b2 1842 depends on SYS_SUPPORTS_MULTITHREADING
f7062ddb 1843 select CPU_MIPSR2_IRQ_VI
d725cf38 1844 select CPU_MIPSR2_IRQ_EI
f41ae0b2 1845 select MIPS_MT
41c594ab 1846 select SMP
0ab7aefc 1847 select SYS_SUPPORTS_SCHED_SMT if SMP
73b76c78 1848 select SYS_SUPPORTS_SMP
87353d8a 1849 select SMP_UP
399aaa25 1850 select MIPS_PERF_SHARED_TC_COUNTERS
f41ae0b2 1851 help
25f12b33
RB
1852 This is a kernel model which is known a VSMP but lately has been
1853 marketesed into SMVP.
1854 Virtual SMP uses the processor's VPEs to implement virtual
1855 processors. In currently available configuration of the 34K processor
1856 this allows for a dual processor. Both processors will share the same
1857 primary caches; each will obtain the half of the TLB for it's own
1858 exclusive use. For a layman this model can be described as similar to
1859 what Intel calls Hyperthreading.
1860
1861 For further information see http://www.linux-mips.org/wiki/34K#VSMP
41c594ab 1862
59d6ab86
RB
1863config MIPS_MT_SMTC
1864 bool "SMTC: Use all TCs on all VPEs for SMP"
1865 depends on CPU_MIPS32_R2
1866 #depends on CPU_MIPS64_R2 # once there is hardware ...
f41ae0b2
RB
1867 depends on SYS_SUPPORTS_MULTITHREADING
1868 select CPU_MIPSR2_IRQ_VI
d725cf38 1869 select CPU_MIPSR2_IRQ_EI
f41ae0b2 1870 select MIPS_MT
130e2fb7 1871 select NR_CPUS_DEFAULT_8
340ee4b9 1872 select SMP
73b76c78 1873 select SYS_SUPPORTS_SMP
87353d8a 1874 select SMP_UP
f41ae0b2 1875 help
59d6ab86
RB
1876 This is a kernel model which is known a SMTC or lately has been
1877 marketesed into SMVP.
25f12b33
RB
1878 is presenting the available TC's of the core as processors to Linux.
1879 On currently available 34K processors this means a Linux system will
1880 see up to 5 processors. The implementation of the SMTC kernel differs
1881 significantly from VSMP and cannot efficiently coexist in the same
1882 kernel binary so the choice between VSMP and SMTC is a compile time
1883 decision.
1884
1885 For further information see http://www.linux-mips.org/wiki/34K#SMTC
340ee4b9 1886
340ee4b9
RB
1887endchoice
1888
f41ae0b2
RB
1889config MIPS_MT
1890 bool
1891
0ab7aefc
RB
1892config SCHED_SMT
1893 bool "SMT (multithreading) scheduler support"
1894 depends on SYS_SUPPORTS_SCHED_SMT
1895 default n
1896 help
1897 SMT scheduler support improves the CPU scheduler's decision making
1898 when dealing with MIPS MT enabled cores at a cost of slightly
1899 increased overhead in some places. If unsure say N here.
1900
1901config SYS_SUPPORTS_SCHED_SMT
1902 bool
1903
f41ae0b2
RB
1904config SYS_SUPPORTS_MULTITHREADING
1905 bool
1906
f088fc84
RB
1907config MIPS_MT_FPAFF
1908 bool "Dynamic FPU affinity for FP-intensive threads"
f088fc84 1909 default y
07cc0c9e
RB
1910 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1911
1912config MIPS_VPE_LOADER
1913 bool "VPE loader support."
704e6460 1914 depends on SYS_SUPPORTS_MULTITHREADING && MODULES
07cc0c9e
RB
1915 select CPU_MIPSR2_IRQ_VI
1916 select CPU_MIPSR2_IRQ_EI
07cc0c9e
RB
1917 select MIPS_MT
1918 help
1919 Includes a loader for loading an elf relocatable object
1920 onto another VPE and running it.
f088fc84 1921
0db34215
KK
1922config MIPS_MT_SMTC_IM_BACKSTOP
1923 bool "Use per-TC register bits as backstop for inhibited IM bits"
1924 depends on MIPS_MT_SMTC
8531a35e 1925 default n
0db34215
KK
1926 help
1927 To support multiple TC microthreads acting as "CPUs" within
1928 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1929 during interrupt handling. To support legacy drivers and interrupt
1930 controller management code, SMTC has a "backstop" to track and
1931 if necessary restore the interrupt mask. This has some performance
8531a35e 1932 impact on interrupt service overhead.
0db34215 1933
f571eff0
KK
1934config MIPS_MT_SMTC_IRQAFF
1935 bool "Support IRQ affinity API"
1936 depends on MIPS_MT_SMTC
1937 default n
1938 help
1939 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1940 for SMTC Linux kernel. Requires platform support, of which
1941 an example can be found in the MIPS kernel i8259 and Malta
8531a35e
KK
1942 platform code. Adds some overhead to interrupt dispatch, and
1943 should be used only if you know what you are doing.
f571eff0 1944
e01402b1
RB
1945config MIPS_VPE_LOADER_TOM
1946 bool "Load VPE program into memory hidden from linux"
1947 depends on MIPS_VPE_LOADER
1948 default y
1949 help
1950 The loader can use memory that is present but has been hidden from
1951 Linux using the kernel command line option "mem=xxMB". It's up to
1952 you to ensure the amount you put in the option and the space your
1953 program requires is less or equal to the amount physically present.
1954
1955# this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1956config MIPS_VPE_APSP_API
5e83d430
RB
1957 bool "Enable support for AP/SP API (RTLX)"
1958 depends on MIPS_VPE_LOADER
1959 help
e01402b1 1960
4a16ff4c
RB
1961config MIPS_CMP
1962 bool "MIPS CMP framework support"
1963 depends on SYS_SUPPORTS_MIPS_CMP
85f32dbd 1964 select SMP
eb9b5141 1965 select SYNC_R4K
4a16ff4c
RB
1966 select SYS_SUPPORTS_SMP
1967 select SYS_SUPPORTS_SCHED_SMT if SMP
1968 select WEAK_ORDERING
1969 default n
1970 help
1971 This is a placeholder option for the GCMP work. It will need to
1972 be handled differently...
1973
1da177e4
LT
1974config SB1_PASS_1_WORKAROUNDS
1975 bool
1976 depends on CPU_SB1_PASS_1
1977 default y
1978
1979config SB1_PASS_2_WORKAROUNDS
1980 bool
1981 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1982 default y
1983
1984config SB1_PASS_2_1_WORKAROUNDS
1985 bool
1986 depends on CPU_SB1 && CPU_SB1_PASS_2
1987 default y
1988
2235a54d 1989
1da177e4 1990config 64BIT_PHYS_ADDR
d806cb2b 1991 bool
1da177e4 1992
60ec6571 1993config ARCH_PHYS_ADDR_T_64BIT
1994 def_bool 64BIT_PHYS_ADDR
1995
9693a853
FBH
1996config CPU_HAS_SMARTMIPS
1997 depends on SYS_SUPPORTS_SMARTMIPS
1998 bool "Support for the SmartMIPS ASE"
1999 help
2000 SmartMIPS is a extension of the MIPS32 architecture aimed at
2001 increased security at both hardware and software level for
2002 smartcards. Enabling this option will allow proper use of the
2003 SmartMIPS instructions by Linux applications. However a kernel with
2004 this option will not work on a MIPS core without SmartMIPS core. If
2005 you don't know you probably don't have SmartMIPS and should say N
2006 here.
2007
bce86083
SH
2008config CPU_MICROMIPS
2009 depends on SYS_SUPPORTS_MICROMIPS
2010 bool "Build kernel using microMIPS ISA"
2011 help
2012 When this option is enabled the kernel will be built using the
2013 microMIPS ISA
2014
1da177e4 2015config CPU_HAS_WB
f7062ddb 2016 bool
e01402b1 2017
df0ac8a4
KC
2018config XKS01
2019 bool
2020
f41ae0b2
RB
2021#
2022# Vectored interrupt mode is an R2 feature
2023#
e01402b1 2024config CPU_MIPSR2_IRQ_VI
f41ae0b2 2025 bool
e01402b1 2026
f41ae0b2
RB
2027#
2028# Extended interrupt mode is an R2 feature
2029#
e01402b1 2030config CPU_MIPSR2_IRQ_EI
f41ae0b2 2031 bool
e01402b1 2032
1da177e4
LT
2033config CPU_HAS_SYNC
2034 bool
2035 depends on !CPU_R3000
2036 default y
2037
20d60d99
MR
2038#
2039# CPU non-features
2040#
2041config CPU_DADDI_WORKAROUNDS
2042 bool
2043
2044config CPU_R4000_WORKAROUNDS
2045 bool
2046 select CPU_R4400_WORKAROUNDS
2047
2048config CPU_R4400_WORKAROUNDS
2049 bool
2050
1da177e4
LT
2051#
2052# - Highmem only makes sense for the 32-bit kernel.
2053# - The current highmem code will only work properly on physically indexed
2054# caches such as R3000, SB1, R7000 or those that look like they're virtually
2055# indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2056# moment we protect the user and offer the highmem option only on machines
2057# where it's known to be safe. This will not offer highmem on a few systems
2058# such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2059# indexed CPUs but we're playing safe.
797798c1
RB
2060# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2061# know they might have memory configurations that could make use of highmem
2062# support.
1da177e4
LT
2063#
2064config HIGHMEM
2065 bool "High Memory Support"
797798c1
RB
2066 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
2067
2068config CPU_SUPPORTS_HIGHMEM
2069 bool
2070
2071config SYS_SUPPORTS_HIGHMEM
2072 bool
1da177e4 2073
9693a853
FBH
2074config SYS_SUPPORTS_SMARTMIPS
2075 bool
2076
a6a4834c
SH
2077config SYS_SUPPORTS_MICROMIPS
2078 bool
2079
b4819b59
YY
2080config ARCH_FLATMEM_ENABLE
2081 def_bool y
f133f22d 2082 depends on !NUMA && !CPU_LOONGSON2
b4819b59 2083
d8cb4e11
RB
2084config ARCH_DISCONTIGMEM_ENABLE
2085 bool
2086 default y if SGI_IP27
2087 help
3dde6ad8 2088 Say Y to support efficient handling of discontiguous physical memory,
d8cb4e11
RB
2089 for architectures which are either NUMA (Non-Uniform Memory Access)
2090 or have huge holes in the physical address space for other reasons.
2091 See <file:Documentation/vm/numa> for more.
2092
31473747
AN
2093config ARCH_SPARSEMEM_ENABLE
2094 bool
7de58fab 2095 select SPARSEMEM_STATIC
31473747 2096
d8cb4e11
RB
2097config NUMA
2098 bool "NUMA Support"
2099 depends on SYS_SUPPORTS_NUMA
2100 help
2101 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2102 Access). This option improves performance on systems with more
2103 than two nodes; on two node systems it is generally better to
2104 leave it disabled; on single node systems disable this option
2105 disabled.
2106
2107config SYS_SUPPORTS_NUMA
2108 bool
2109
c80d79d7
YG
2110config NODES_SHIFT
2111 int
2112 default "6"
2113 depends on NEED_MULTIPLE_NODES
2114
14f70012
DCZ
2115config HW_PERF_EVENTS
2116 bool "Enable hardware performance counter support for perf events"
4be3d2f3 2117 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
14f70012
DCZ
2118 default y
2119 help
2120 Enable hardware performance counter support for perf events. If
2121 disabled, perf events will use software events only.
2122
b4819b59
YY
2123source "mm/Kconfig"
2124
1da177e4
LT
2125config SMP
2126 bool "Multi-Processing support"
e73ea273 2127 depends on SYS_SUPPORTS_SMP
2f304c0a 2128 select USE_GENERIC_SMP_HELPERS
e73ea273 2129 help
1da177e4
LT
2130 This enables support for systems with more than one CPU. If you have
2131 a system with only one CPU, like most personal computers, say N. If
2132 you have a system with more than one CPU, say Y.
2133
2134 If you say N here, the kernel will run on single and multiprocessor
2135 machines, but will use only one CPU of a multiprocessor machine. If
2136 you say Y here, the kernel will run on many, but not all,
2137 singleprocessor machines. On a singleprocessor machine, the kernel
2138 will run faster if you say N here.
2139
2140 People using multiprocessor machines who say Y here should also say
2141 Y to "Enhanced Real Time Clock Support", below.
2142
03502faa
AB
2143 See also the SMP-HOWTO available at
2144 <http://www.tldp.org/docs.html#howto>.
1da177e4
LT
2145
2146 If you don't know what to do here, say N.
2147
87353d8a
RB
2148config SMP_UP
2149 bool
2150
4a16ff4c
RB
2151config SYS_SUPPORTS_MIPS_CMP
2152 bool
2153
e73ea273
RB
2154config SYS_SUPPORTS_SMP
2155 bool
2156
130e2fb7
RB
2157config NR_CPUS_DEFAULT_4
2158 bool
2159
2160config NR_CPUS_DEFAULT_8
2161 bool
2162
2163config NR_CPUS_DEFAULT_16
2164 bool
2165
2166config NR_CPUS_DEFAULT_32
2167 bool
2168
2169config NR_CPUS_DEFAULT_64
2170 bool
2171
1da177e4
LT
2172config NR_CPUS
2173 int "Maximum number of CPUs (2-64)"
c5eaff3e 2174 range 2 64
1da177e4 2175 depends on SMP
130e2fb7
RB
2176 default "4" if NR_CPUS_DEFAULT_4
2177 default "8" if NR_CPUS_DEFAULT_8
2178 default "16" if NR_CPUS_DEFAULT_16
2179 default "32" if NR_CPUS_DEFAULT_32
2180 default "64" if NR_CPUS_DEFAULT_64
1da177e4
LT
2181 help
2182 This allows you to specify the maximum number of CPUs which this
2183 kernel will support. The maximum supported value is 32 for 32-bit
2184 kernel and 64 for 64-bit kernels; the minimum value which makes
72ede9b1
AN
2185 sense is 1 for Qemu (useful only for kernel debugging purposes)
2186 and 2 for all others.
1da177e4
LT
2187
2188 This is purely to save memory - each supported CPU adds
72ede9b1
AN
2189 approximately eight kilobytes to the kernel image. For best
2190 performance should round up your number of processors to the next
2191 power of two.
1da177e4 2192
399aaa25
AC
2193config MIPS_PERF_SHARED_TC_COUNTERS
2194 bool
2195
1723b4a3
AN
2196#
2197# Timer Interrupt Frequency Configuration
2198#
2199
2200choice
2201 prompt "Timer frequency"
2202 default HZ_250
2203 help
2204 Allows the configuration of the timer frequency.
2205
2206 config HZ_48
0f873585 2207 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
1723b4a3
AN
2208
2209 config HZ_100
2210 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2211
2212 config HZ_128
2213 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2214
2215 config HZ_250
2216 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2217
2218 config HZ_256
2219 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2220
2221 config HZ_1000
2222 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2223
2224 config HZ_1024
2225 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2226
2227endchoice
2228
2229config SYS_SUPPORTS_48HZ
2230 bool
2231
2232config SYS_SUPPORTS_100HZ
2233 bool
2234
2235config SYS_SUPPORTS_128HZ
2236 bool
2237
2238config SYS_SUPPORTS_250HZ
2239 bool
2240
2241config SYS_SUPPORTS_256HZ
2242 bool
2243
2244config SYS_SUPPORTS_1000HZ
2245 bool
2246
2247config SYS_SUPPORTS_1024HZ
2248 bool
2249
2250config SYS_SUPPORTS_ARBIT_HZ
2251 bool
2252 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2253 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2254 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2255 !SYS_SUPPORTS_1024HZ
2256
2257config HZ
2258 int
2259 default 48 if HZ_48
2260 default 100 if HZ_100
2261 default 128 if HZ_128
2262 default 250 if HZ_250
2263 default 256 if HZ_256
2264 default 1000 if HZ_1000
2265 default 1024 if HZ_1024
2266
e80de850 2267source "kernel/Kconfig.preempt"
1da177e4 2268
ea6e942b 2269config KEXEC
7d60717e 2270 bool "Kexec system call"
ea6e942b
AN
2271 help
2272 kexec is a system call that implements the ability to shutdown your
2273 current kernel, and to start another kernel. It is like a reboot
3dde6ad8 2274 but it is independent of the system firmware. And like a reboot
ea6e942b
AN
2275 you can start any kernel with it, not just Linux.
2276
01dd2fbf 2277 The name comes from the similarity to the exec system call.
ea6e942b
AN
2278
2279 It is an ongoing process to be certain the hardware in a machine
2280 is properly shutdown, so do not be surprised if this code does not
bf220695
GU
2281 initially work for you. As of this writing the exact hardware
2282 interface is strongly in flux, so no good recommendation can be
2283 made.
ea6e942b 2284
7aa1c8f4
RB
2285config CRASH_DUMP
2286 bool "Kernel crash dumps"
2287 help
2288 Generate crash dump after being started by kexec.
2289 This should be normally only set in special crash dump kernels
2290 which are loaded in the main kernel with kexec-tools into
2291 a specially reserved region and then later executed after
2292 a crash by kdump/kexec. The crash dump kernel must be compiled
2293 to a memory address not used by the main kernel or firmware using
2294 PHYSICAL_START.
2295
2296config PHYSICAL_START
2297 hex "Physical address where the kernel is loaded"
2298 default "0xffffffff84000000" if 64BIT
2299 default "0x84000000" if 32BIT
2300 depends on CRASH_DUMP
2301 help
2302 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2303 If you plan to use kernel for capturing the crash dump change
2304 this value to start of the reserved region (the "X" value as
2305 specified in the "crashkernel=YM@XM" command line boot parameter
2306 passed to the panic-ed kernel).
2307
ea6e942b
AN
2308config SECCOMP
2309 bool "Enable seccomp to safely compute untrusted bytecode"
293c5bd1 2310 depends on PROC_FS
ea6e942b
AN
2311 default y
2312 help
2313 This kernel feature is useful for number crunching applications
2314 that may need to compute untrusted bytecode during their
2315 execution. By using pipes or other transports made available to
2316 the process as file descriptors supporting the read/write
2317 syscalls, it's possible to isolate those applications in
2318 their own address space using seccomp. Once seccomp is
2319 enabled via /proc/<pid>/seccomp, it cannot be disabled
2320 and the task is only allowed to execute a few safe syscalls
2321 defined by each seccomp mode.
2322
2323 If unsure, say Y. Only embedded should say N here.
2324
36ecafc5
GF
2325config CC_STACKPROTECTOR
2326 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
2327 help
2328 This option turns on the -fstack-protector GCC feature. This
2329 feature puts, at the beginning of functions, a canary value on
2330 the stack just before the return address, and validates
2331 the value just before actually returning. Stack based buffer
2332 overflows (that need to overwrite this return address) now also
2333 overwrite the canary, which gets detected and the attack is then
2334 neutralized via a kernel panic.
2335
2336 This feature requires gcc version 4.2 or above.
2337
f2ffa5ab 2338config USE_OF
0b3e06fd 2339 bool
f2ffa5ab 2340 select OF
e6ce1324 2341 select OF_EARLY_FLATTREE
abd2363f 2342 select IRQ_DOMAIN
f2ffa5ab 2343
5e83d430
RB
2344endmenu
2345
1df0f0ff
AN
2346config LOCKDEP_SUPPORT
2347 bool
2348 default y
2349
2350config STACKTRACE_SUPPORT
2351 bool
2352 default y
2353
b6c3539b
RB
2354source "init/Kconfig"
2355
dc52ddc0
MH
2356source "kernel/Kconfig.freezer"
2357
1da177e4
LT
2358menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2359
5e83d430
RB
2360config HW_HAS_EISA
2361 bool
1da177e4
LT
2362config HW_HAS_PCI
2363 bool
2364
2365config PCI
2366 bool "Support for PCI controller"
2367 depends on HW_HAS_PCI
abb4ae46 2368 select PCI_DOMAINS
0f3b3956 2369 select NO_GENERIC_PCI_IOPORT_MAP
1da177e4
LT
2370 help
2371 Find out whether you have a PCI motherboard. PCI is the name of a
2372 bus system, i.e. the way the CPU talks to the other stuff inside
2373 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2374 say Y, otherwise N.
2375
1da177e4
LT
2376config PCI_DOMAINS
2377 bool
1da177e4
LT
2378
2379source "drivers/pci/Kconfig"
2380
3f787ca4
JG
2381source "drivers/pci/pcie/Kconfig"
2382
1da177e4
LT
2383#
2384# ISA support is now enabled via select. Too many systems still have the one
2385# or other ISA chip on the board that users don't know about so don't expect
2386# users to choose the right thing ...
2387#
2388config ISA
2389 bool
2390
2391config EISA
2392 bool "EISA support"
5e83d430 2393 depends on HW_HAS_EISA
1da177e4 2394 select ISA
aa414dff 2395 select GENERIC_ISA_DMA
1da177e4
LT
2396 ---help---
2397 The Extended Industry Standard Architecture (EISA) bus was
2398 developed as an open alternative to the IBM MicroChannel bus.
2399
2400 The EISA bus provided some of the features of the IBM MicroChannel
2401 bus while maintaining backward compatibility with cards made for
2402 the older ISA bus. The EISA bus saw limited use between 1988 and
2403 1995 when it was made obsolete by the PCI bus.
2404
2405 Say Y here if you are building a kernel for an EISA-based machine.
2406
2407 Otherwise, say N.
2408
2409source "drivers/eisa/Kconfig"
2410
2411config TC
2412 bool "TURBOchannel support"
2413 depends on MACH_DECSTATION
2414 help
50a23e6e
JM
2415 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2416 processors. TURBOchannel programming specifications are available
2417 at:
2418 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2419 and:
2420 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2421 Linux driver support status is documented at:
2422 <http://www.linux-mips.org/wiki/DECstation>
1da177e4 2423
1da177e4
LT
2424config MMU
2425 bool
2426 default y
2427
d865bea4
RB
2428config I8253
2429 bool
798778b8 2430 select CLKSRC_I8253
2d02612f 2431 select CLKEVT_I8253
9726b43a 2432 select MIPS_EXTERNAL_TIMER
d865bea4 2433
e05eb3f8
RB
2434config ZONE_DMA
2435 bool
2436
cce335ae
RB
2437config ZONE_DMA32
2438 bool
2439
1da177e4
LT
2440source "drivers/pcmcia/Kconfig"
2441
2442source "drivers/pci/hotplug/Kconfig"
2443
388b78ad
AB
2444config RAPIDIO
2445 bool "RapidIO support"
2446 depends on PCI
2447 default n
2448 help
2449 If you say Y here, the kernel will include drivers and
2450 infrastructure code to support RapidIO interconnect devices.
2451
2452source "drivers/rapidio/Kconfig"
2453
1da177e4
LT
2454endmenu
2455
2456menu "Executable file formats"
2457
2458source "fs/Kconfig.binfmt"
2459
2460config TRAD_SIGNALS
2461 bool
1da177e4 2462
1da177e4
LT
2463config MIPS32_COMPAT
2464 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
875d43e7 2465 depends on 64BIT
1da177e4
LT
2466 help
2467 Select this option if you want Linux/MIPS 32-bit binary
2468 compatibility. Since all software available for Linux/MIPS is
2469 currently 32-bit you should say Y here.
2470
2471config COMPAT
2472 bool
2473 depends on MIPS32_COMPAT
48b25c43 2474 select ARCH_WANT_OLD_COMPAT_IPC
1da177e4
LT
2475 default y
2476
05e43966
AN
2477config SYSVIPC_COMPAT
2478 bool
2479 depends on COMPAT && SYSVIPC
2480 default y
2481
1da177e4
LT
2482config MIPS32_O32
2483 bool "Kernel support for o32 binaries"
2484 depends on MIPS32_COMPAT
2485 help
2486 Select this option if you want to run o32 binaries. These are pure
2487 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2488 existing binaries are in this format.
2489
2490 If unsure, say Y.
2491
2492config MIPS32_N32
2493 bool "Kernel support for n32 binaries"
2494 depends on MIPS32_COMPAT
2495 help
2496 Select this option if you want to run n32 binaries. These are
2497 64-bit binaries using 32-bit quantities for addressing and certain
2498 data that would normally be 64-bit. They are used in special
2499 cases.
2500
2501 If unsure, say N.
2502
2503config BINFMT_ELF32
2504 bool
2505 default y if MIPS32_O32 || MIPS32_N32
2506
2116245e
RB
2507endmenu
2508
2509menu "Power management options"
2510
363c55ca
WZ
2511config ARCH_HIBERNATION_POSSIBLE
2512 def_bool y
3f5b3e17 2513 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
363c55ca 2514
f4cb5700
JB
2515config ARCH_SUSPEND_POSSIBLE
2516 def_bool y
3f5b3e17 2517 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
f4cb5700 2518
2116245e 2519source "kernel/power/Kconfig"
952fa954 2520
1da177e4
LT
2521endmenu
2522
7a998935
VK
2523config MIPS_EXTERNAL_TIMER
2524 bool
2525
2526if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
2527menu "CPU Power Management"
2528source "drivers/cpufreq/Kconfig"
2529endmenu
2530endif
9726b43a 2531
d5950b43
SR
2532source "net/Kconfig"
2533
1da177e4
LT
2534source "drivers/Kconfig"
2535
98cdee0e
RB
2536source "drivers/firmware/Kconfig"
2537
1da177e4
LT
2538source "fs/Kconfig"
2539
2540source "arch/mips/Kconfig.debug"
2541
2542source "security/Kconfig"
2543
2544source "crypto/Kconfig"
2545
2546source "lib/Kconfig"
2235a54d
SL
2547
2548source "arch/mips/kvm/Kconfig"
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