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1# For a description of the syntax of this configuration file,
2# see Documentation/kbuild/kconfig-language.txt.
3#
4
5mainmenu "Linux/PowerPC Kernel Configuration"
6
7config PPC64
8 bool "64-bit kernel"
9 default n
10 help
11 This option selects whether a 32-bit or a 64-bit kernel
12 will be built.
13
14config PPC32
15 bool
16 default y if !PPC64
17
18config 64BIT
19 bool
20 default y if PPC64
21
22config PPC_MERGE
23 def_bool y
24
25config MMU
26 bool
27 default y
28
29config UID16
30 bool
31
32config GENERIC_HARDIRQS
33 bool
34 default y
35
36config RWSEM_GENERIC_SPINLOCK
37 bool
38
39config RWSEM_XCHGADD_ALGORITHM
40 bool
41 default y
42
43config GENERIC_CALIBRATE_DELAY
44 bool
45 default y
46
47config PPC
48 bool
49 default y
50
51config EARLY_PRINTK
52 bool
53 default y if PPC64
54
55config COMPAT
56 bool
57 default y if PPC64
58
59config SYSVIPC_COMPAT
60 bool
61 depends on COMPAT && SYSVIPC
62 default y
63
64# All PPC32s use generic nvram driver through ppc_md
65config GENERIC_NVRAM
66 bool
67 default y if PPC32
68
69config SCHED_NO_NO_OMIT_FRAME_POINTER
70 bool
71 default y
72
73config ARCH_MAY_HAVE_PC_FDC
74 bool
75 default y
76
77menu "Processor support"
78choice
79 prompt "Processor Type"
80 depends on PPC32
81 default 6xx
82
83config 6xx
84 bool "6xx/7xx/74xx"
85 select PPC_FPU
86 help
87 There are four families of PowerPC chips supported. The more common
88 types (601, 603, 604, 740, 750, 7400), the Motorola embedded
89 versions (821, 823, 850, 855, 860, 52xx, 82xx, 83xx), the AMCC
90 embedded versions (403 and 405) and the high end 64 bit Power
91 processors (POWER 3, POWER4, and IBM PPC970 also known as G5).
92
93 Unless you are building a kernel for one of the embedded processor
94 systems, 64 bit IBM RS/6000 or an Apple G5, choose 6xx.
95 Note that the kernel runs in 32-bit mode even on 64-bit chips.
96
97config PPC_52xx
98 bool "Freescale 52xx"
99
100config PPC_82xx
101 bool "Freescale 82xx"
102
103config PPC_83xx
104 bool "Freescale 83xx"
105
106config 40x
107 bool "AMCC 40x"
108
109config 44x
110 bool "AMCC 44x"
111
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112config 8xx
113 bool "Freescale 8xx"
114
115config E200
116 bool "Freescale e200"
117
118config E500
119 bool "Freescale e500"
120endchoice
121
122config POWER4_ONLY
123 bool "Optimize for POWER4"
187a0067 124 depends on PPC64
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125 default n
126 ---help---
127 Cause the compiler to optimize for POWER4/POWER5/PPC970 processors.
128 The resulting binary will not work on POWER3 or RS64 processors
129 when compiled with binutils 2.15 or later.
130
131config POWER3
132 bool
187a0067 133 depends on PPC64
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134 default y if !POWER4_ONLY
135
136config POWER4
187a0067 137 depends on PPC64
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138 def_bool y
139
140config PPC_FPU
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141 bool
142 default y if PPC64
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143
144config BOOKE
145 bool
146 depends on E200 || E500
147 default y
148
149config FSL_BOOKE
150 bool
151 depends on E200 || E500
152 default y
153
154config PTE_64BIT
155 bool
156 depends on 44x || E500
157 default y if 44x
158 default y if E500 && PHYS_64BIT
159
160config PHYS_64BIT
161 bool 'Large physical address support' if E500
162 depends on 44x || E500
163 default y if 44x
164 ---help---
165 This option enables kernel support for larger than 32-bit physical
166 addresses. This features is not be available on all e500 cores.
167
168 If in doubt, say N here.
169
170config ALTIVEC
171 bool "AltiVec Support"
172 depends on 6xx || POWER4
173 ---help---
174 This option enables kernel support for the Altivec extensions to the
175 PowerPC processor. The kernel currently supports saving and restoring
176 altivec registers, and turning on the 'altivec enable' bit so user
177 processes can execute altivec instructions.
178
179 This option is only usefully if you have a processor that supports
180 altivec (G4, otherwise known as 74xx series), but does not have
181 any affect on a non-altivec cpu (it does, however add code to the
182 kernel).
183
184 If in doubt, say Y here.
185
186config SPE
187 bool "SPE Support"
188 depends on E200 || E500
189 ---help---
190 This option enables kernel support for the Signal Processing
191 Extensions (SPE) to the PowerPC processor. The kernel currently
192 supports saving and restoring SPE registers, and turning on the
193 'spe enable' bit so user processes can execute SPE instructions.
194
195 This option is only useful if you have a processor that supports
196 SPE (e500, otherwise known as 85xx series), but does not have any
197 effect on a non-spe cpu (it does, however add code to the kernel).
198
199 If in doubt, say Y here.
200
201config PPC_STD_MMU
202 bool
203 depends on 6xx || POWER3 || POWER4 || PPC64
204 default y
205
206config PPC_STD_MMU_32
207 def_bool y
208 depends on PPC_STD_MMU && PPC32
209
210config SMP
211 depends on PPC_STD_MMU
212 bool "Symmetric multi-processing support"
213 ---help---
214 This enables support for systems with more than one CPU. If you have
215 a system with only one CPU, say N. If you have a system with more
216 than one CPU, say Y. Note that the kernel does not currently
217 support SMP machines with 603/603e/603ev or PPC750 ("G3") processors
218 since they have inadequate hardware support for multiprocessor
219 operation.
220
221 If you say N here, the kernel will run on single and multiprocessor
222 machines, but will use only one CPU of a multiprocessor machine. If
223 you say Y here, the kernel will run on single-processor machines.
224 On a single-processor machine, the kernel will run faster if you say
225 N here.
226
227 If you don't know what to do here, say N.
228
229config NR_CPUS
230 int "Maximum number of CPUs (2-32)"
231 range 2 128
232 depends on SMP
233 default "32" if PPC64
234 default "4"
235
236config NOT_COHERENT_CACHE
237 bool
238 depends on 4xx || 8xx || E200
239 default y
240endmenu
241
242source "init/Kconfig"
243
244menu "Platform support"
245 depends on PPC64 || 6xx
246
247choice
248 prompt "Machine type"
249 default PPC_MULTIPLATFORM
250
251config PPC_MULTIPLATFORM
252 bool "Generic desktop/server/laptop"
253 help
254 Select this option if configuring for an IBM pSeries or
255 RS/6000 machine, an Apple machine, or a PReP, CHRP,
256 Maple or Cell-based machine.
257
258config PPC_ISERIES
259 bool "IBM Legacy iSeries"
260 depends on PPC64
261
262config EMBEDDED6xx
263 bool "Embedded 6xx/7xx/7xxx-based board"
264 depends on PPC32
265
266config APUS
267 bool "Amiga-APUS"
268 depends on PPC32 && BROKEN
269 help
270 Select APUS if configuring for a PowerUP Amiga.
271 More information is available at:
272 <http://linux-apus.sourceforge.net/>.
273endchoice
274
275config PPC_PSERIES
276 depends on PPC_MULTIPLATFORM && PPC64
277 bool " IBM pSeries & new (POWER5-based) iSeries"
f9bd170a 278 select PPC_I8259
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279 select PPC_RTAS
280 select RTAS_ERROR_LOGGING
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281 default y
282
283config PPC_CHRP
284 bool " Common Hardware Reference Platform (CHRP) based machines"
285 depends on PPC_MULTIPLATFORM && PPC32
f9bd170a 286 select PPC_I8259
25635c71 287 select PPC_INDIRECT_PCI
033ef338 288 select PPC_RTAS
830825d6 289 select PPC_MPC106
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290 default y
291
292config PPC_PMAC
293 bool " Apple PowerMac based machines"
294 depends on PPC_MULTIPLATFORM
25635c71 295 select PPC_INDIRECT_PCI if PPC32
b6a4ce52 296 select PPC_MPC106 if PPC32
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297 default y
298
299config PPC_PMAC64
300 bool
301 depends on PPC_PMAC && POWER4
35499c01 302 select U3_DART
8ad200d7 303 select GENERIC_TBSYNC
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304 default y
305
306config PPC_PREP
307 bool " PowerPC Reference Platform (PReP) based machines"
308 depends on PPC_MULTIPLATFORM && PPC32
f9bd170a 309 select PPC_I8259
25635c71 310 select PPC_INDIRECT_PCI
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311 default y
312
313config PPC_MAPLE
314 depends on PPC_MULTIPLATFORM && PPC64
315 bool " Maple 970FX Evaluation Board"
316 select U3_DART
317 select MPIC_BROKEN_U3
8ad200d7 318 select GENERIC_TBSYNC
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319 default n
320 help
321 This option enables support for the Maple 970FX Evaluation Board.
322 For more informations, refer to <http://www.970eval.com>
323
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324config PPC_CELL
325 bool " Cell Broadband Processor Architecture"
14cf11af 326 depends on PPC_MULTIPLATFORM && PPC64
033ef338 327 select PPC_RTAS
edf03c1e 328 select MMIO_NVRAM
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329
330config PPC_OF
331 bool
187a0067 332 depends on PPC_MULTIPLATFORM # for now
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333 default y
334
335config XICS
336 depends on PPC_PSERIES
337 bool
338 default y
339
340config U3_DART
341 bool
342 depends on PPC_MULTIPLATFORM && PPC64
343 default n
344
345config MPIC
bbd0abda 346 depends on PPC_PSERIES || PPC_PMAC || PPC_MAPLE || PPC_CHRP
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347 bool
348 default y
349
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350config PPC_RTAS
351 bool
352 default n
353
354config RTAS_ERROR_LOGGING
355 bool
356 depends on PPC_RTAS
357 default n
358
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359config RTAS_PROC
360 bool "Proc interface to RTAS"
e9add2ee 361 depends on PPC_RTAS
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362 default y
363
364config RTAS_FLASH
365 tristate "Firmware flash interface"
366 depends on PPC64 && RTAS_PROC
e9add2ee 367
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368config MMIO_NVRAM
369 bool
370 default n
371
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372config MPIC_BROKEN_U3
373 bool
374 depends on PPC_MAPLE
375 default y
376
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377config CELL_IIC
378 depends on PPC_CELL
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379 bool
380 default y
381
382config IBMVIO
383 depends on PPC_PSERIES || PPC_ISERIES
384 bool
385 default y
386
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387config PPC_MPC106
388 bool
389 default n
390
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391config GENERIC_TBSYNC
392 bool
393 default y if CONFIG_PPC32 && CONFIG_SMP
394 default n
395
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396source "drivers/cpufreq/Kconfig"
397
398config CPU_FREQ_PMAC
399 bool "Support for Apple PowerBooks"
400 depends on CPU_FREQ && ADB_PMU && PPC32
401 select CPU_FREQ_TABLE
402 help
403 This adds support for frequency switching on Apple PowerBooks,
404 this currently includes some models of iBook & Titanium
405 PowerBook.
406
407config PPC601_SYNC_FIX
408 bool "Workarounds for PPC601 bugs"
409 depends on 6xx && (PPC_PREP || PPC_PMAC)
410 help
411 Some versions of the PPC601 (the first PowerPC chip) have bugs which
412 mean that extra synchronization instructions are required near
413 certain instructions, typically those that make major changes to the
414 CPU state. These extra instructions reduce performance slightly.
415 If you say N here, these extra instructions will not be included,
416 resulting in a kernel which will run faster but may not run at all
417 on some systems with the PPC601 chip.
418
419 If in doubt, say Y here.
420
421config TAU
422 bool "Thermal Management Support"
423 depends on 6xx
424 help
425 G3 and G4 processors have an on-chip temperature sensor called the
426 'Thermal Assist Unit (TAU)', which, in theory, can measure the on-die
427 temperature within 2-4 degrees Celsius. This option shows the current
428 on-die temperature in /proc/cpuinfo if the cpu supports it.
429
430 Unfortunately, on some chip revisions, this sensor is very inaccurate
431 and in some cases, does not work at all, so don't assume the cpu
432 temp is actually what /proc/cpuinfo says it is.
433
434config TAU_INT
435 bool "Interrupt driven TAU driver (DANGEROUS)"
436 depends on TAU
437 ---help---
438 The TAU supports an interrupt driven mode which causes an interrupt
439 whenever the temperature goes out of range. This is the fastest way
440 to get notified the temp has exceeded a range. With this option off,
441 a timer is used to re-check the temperature periodically.
442
443 However, on some cpus it appears that the TAU interrupt hardware
444 is buggy and can cause a situation which would lead unexplained hard
445 lockups.
446
447 Unless you are extending the TAU driver, or enjoy kernel/hardware
448 debugging, leave this option off.
449
450config TAU_AVERAGE
451 bool "Average high and low temp"
452 depends on TAU
453 ---help---
454 The TAU hardware can compare the temperature to an upper and lower
455 bound. The default behavior is to show both the upper and lower
456 bound in /proc/cpuinfo. If the range is large, the temperature is
457 either changing a lot, or the TAU hardware is broken (likely on some
458 G4's). If the range is small (around 4 degrees), the temperature is
459 relatively stable. If you say Y here, a single temperature value,
460 halfway between the upper and lower bounds, will be reported in
461 /proc/cpuinfo.
462
463 If in doubt, say N here.
464endmenu
465
466source arch/powerpc/platforms/embedded6xx/Kconfig
467source arch/powerpc/platforms/4xx/Kconfig
468source arch/powerpc/platforms/85xx/Kconfig
469source arch/powerpc/platforms/8xx/Kconfig
470
471menu "Kernel options"
472
473config HIGHMEM
474 bool "High memory support"
475 depends on PPC32
476
477source kernel/Kconfig.hz
478source kernel/Kconfig.preempt
479source "fs/Kconfig.binfmt"
480
481# We optimistically allocate largepages from the VM, so make the limit
482# large enough (16MB). This badly named config option is actually
483# max order + 1
484config FORCE_MAX_ZONEORDER
485 int
486 depends on PPC64
487 default "13"
488
489config MATH_EMULATION
490 bool "Math emulation"
491 depends on 4xx || 8xx || E200 || E500
492 ---help---
493 Some PowerPC chips designed for embedded applications do not have
494 a floating-point unit and therefore do not implement the
495 floating-point instructions in the PowerPC instruction set. If you
496 say Y here, the kernel will include code to emulate a floating-point
497 unit, which will allow programs that use floating-point
498 instructions to run.
499
500config IOMMU_VMERGE
501 bool "Enable IOMMU virtual merging (EXPERIMENTAL)"
502 depends on EXPERIMENTAL && PPC64
503 default n
504 help
505 Cause IO segments sent to a device for DMA to be merged virtually
506 by the IOMMU when they happen to have been allocated contiguously.
507 This doesn't add pressure to the IOMMU allocator. However, some
508 drivers don't support getting large merged segments coming back
509 from *_map_sg(). Say Y if you know the drivers you are using are
510 properly handling this case.
511
512config HOTPLUG_CPU
513 bool "Support for enabling/disabling CPUs"
514 depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC)
515 ---help---
516 Say Y here to be able to disable and re-enable individual
517 CPUs at runtime on SMP machines.
518
519 Say N if you are unsure.
520
521config KEXEC
522 bool "kexec system call (EXPERIMENTAL)"
523 depends on PPC_MULTIPLATFORM && EXPERIMENTAL
524 help
525 kexec is a system call that implements the ability to shutdown your
526 current kernel, and to start another kernel. It is like a reboot
527 but it is indepedent of the system firmware. And like a reboot
528 you can start any kernel with it, not just Linux.
529
530 The name comes from the similiarity to the exec system call.
531
532 It is an ongoing process to be certain the hardware in a machine
533 is properly shutdown, so do not be surprised if this code does not
534 initially work for you. It may help to enable device hotplugging
535 support. As of this writing the exact hardware interface is
536 strongly in flux, so no good recommendation can be made.
537
538config EMBEDDEDBOOT
539 bool
540 depends on 8xx || 8260
541 default y
542
543config PC_KEYBOARD
544 bool "PC PS/2 style Keyboard"
545 depends on 4xx || CPM2
546
547config PPCBUG_NVRAM
548 bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC
549 default y if PPC_PREP
550
551config IRQ_ALL_CPUS
552 bool "Distribute interrupts on all CPUs by default"
553 depends on SMP && !MV64360
554 help
555 This option gives the kernel permission to distribute IRQs across
556 multiple CPUs. Saying N here will route all IRQs to the first
557 CPU. Generally saying Y is safe, although some problems have been
558 reported with SMP Power Macintoshes with this option enabled.
559
560source "arch/powerpc/platforms/pseries/Kconfig"
561
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562config NUMA
563 bool "NUMA support"
564 depends on PPC64
565 default y if SMP && PPC_PSERIES
566
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567config ARCH_SELECT_MEMORY_MODEL
568 def_bool y
569 depends on PPC64
570
571config ARCH_FLATMEM_ENABLE
572 def_bool y
573 depends on PPC64 && !NUMA
574
575config ARCH_DISCONTIGMEM_ENABLE
576 def_bool y
577 depends on SMP && PPC_PSERIES
578
579config ARCH_DISCONTIGMEM_DEFAULT
580 def_bool y
581 depends on ARCH_DISCONTIGMEM_ENABLE
582
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583config ARCH_SPARSEMEM_ENABLE
584 def_bool y
585 depends on ARCH_DISCONTIGMEM_ENABLE
586
587source "mm/Kconfig"
588
589config HAVE_ARCH_EARLY_PFN_TO_NID
590 def_bool y
591 depends on NEED_MULTIPLE_NODES
592
593# Some NUMA nodes have memory ranges that span
594# other nodes. Even though a pfn is valid and
595# between a node's start and end pfns, it may not
596# reside on that node.
597#
598# This is a relatively temporary hack that should
599# be able to go away when sparsemem is fully in
600# place
601
602config NODES_SPAN_OTHER_NODES
603 def_bool y
604 depends on NEED_MULTIPLE_NODES
605
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606config SCHED_SMT
607 bool "SMT (Hyperthreading) scheduler support"
608 depends on PPC64 && SMP
609 default off
610 help
611 SMT scheduler support improves the CPU scheduler's decision making
612 when dealing with POWER5 cpus at a cost of slightly increased
613 overhead in some places. If unsure say N here.
614
615config PROC_DEVICETREE
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616 bool "Support for device tree in /proc"
617 depends on PROC_FS
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618 help
619 This option adds a device-tree directory under /proc which contains
620 an image of the device tree that the kernel copies from Open
5f296755 621 Firmware or other boot firmware. If unsure, say Y here.
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622
623source "arch/powerpc/platforms/prep/Kconfig"
624
625config CMDLINE_BOOL
626 bool "Default bootloader kernel arguments"
627 depends on !PPC_ISERIES
628
629config CMDLINE
630 string "Initial kernel command string"
631 depends on CMDLINE_BOOL
632 default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
633 help
634 On some platforms, there is currently no way for the boot loader to
635 pass arguments to the kernel. For these platforms, you can supply
636 some command-line options at build time by entering them here. In
637 most cases you will need to specify the root device here.
638
639if !44x || BROKEN
640source kernel/power/Kconfig
641endif
642
643config SECCOMP
644 bool "Enable seccomp to safely compute untrusted bytecode"
645 depends on PROC_FS
646 default y
647 help
648 This kernel feature is useful for number crunching applications
649 that may need to compute untrusted bytecode during their
650 execution. By using pipes or other transports made available to
651 the process as file descriptors supporting the read/write
652 syscalls, it's possible to isolate those applications in
653 their own address space using seccomp. Once seccomp is
654 enabled via /proc/<pid>/seccomp, it cannot be disabled
655 and the task is only allowed to execute a few safe syscalls
656 defined by each seccomp mode.
657
658 If unsure, say Y. Only embedded should say N here.
659
660endmenu
661
662config ISA_DMA_API
663 bool
664 default y
665
666menu "Bus options"
667
668config ISA
669 bool "Support for ISA-bus hardware"
670 depends on PPC_PREP || PPC_CHRP
f9bd170a 671 select PPC_I8259
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672 help
673 Find out whether you have ISA slots on your motherboard. ISA is the
674 name of a bus system, i.e. the way the CPU talks to the other stuff
675 inside your box. If you have an Apple machine, say N here; if you
676 have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If
677 you have an embedded board, consult your board documentation.
678
679config GENERIC_ISA_DMA
680 bool
681 depends on PPC64 || POWER4 || 6xx && !CPM2
682 default y
683
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684config PPC_I8259
685 bool
686 default y if 85xx
687 default n
688
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689config PPC_INDIRECT_PCI
690 bool
691 depends on PCI
692 default y if 40x || 44x || 85xx || 83xx
693 default n
694
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695config EISA
696 bool
697
698config SBUS
699 bool
700
701# Yes MCA RS/6000s exist but Linux-PPC does not currently support any
702config MCA
703 bool
704
705config PCI
706 bool "PCI support" if 40x || CPM2 || 83xx || 85xx || PPC_MPC52xx || (EMBEDDED && PPC_ISERIES)
707 default y if !40x && !CPM2 && !8xx && !APUS && !83xx && !85xx
708 default PCI_PERMEDIA if !4xx && !CPM2 && !8xx && APUS
709 default PCI_QSPAN if !4xx && !CPM2 && 8xx
710 help
711 Find out whether your system includes a PCI bus. PCI is the name of
712 a bus system, i.e. the way the CPU talks to the other stuff inside
713 your box. If you say Y here, the kernel will include drivers and
714 infrastructure code to support PCI bus devices.
715
716config PCI_DOMAINS
717 bool
718 default PCI
719
720config MPC83xx_PCI2
721 bool " Supprt for 2nd PCI host controller"
722 depends on PCI && MPC834x
723 default y if MPC834x_SYS
724
725config PCI_QSPAN
726 bool "QSpan PCI"
727 depends on !4xx && !CPM2 && 8xx
f9bd170a 728 select PPC_I8259
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729 help
730 Say Y here if you have a system based on a Motorola 8xx-series
731 embedded processor with a QSPAN PCI interface, otherwise say N.
732
733config PCI_8260
734 bool
735 depends on PCI && 8260
25635c71 736 select PPC_INDIRECT_PCI
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737 default y
738
739config 8260_PCI9
740 bool " Enable workaround for MPC826x erratum PCI 9"
741 depends on PCI_8260 && !ADS8272
742 default y
743
744choice
745 prompt " IDMA channel for PCI 9 workaround"
746 depends on 8260_PCI9
747
748config 8260_PCI9_IDMA1
749 bool "IDMA1"
750
751config 8260_PCI9_IDMA2
752 bool "IDMA2"
753
754config 8260_PCI9_IDMA3
755 bool "IDMA3"
756
757config 8260_PCI9_IDMA4
758 bool "IDMA4"
759
760endchoice
761
762source "drivers/pci/Kconfig"
763
764source "drivers/pcmcia/Kconfig"
765
766source "drivers/pci/hotplug/Kconfig"
767
768endmenu
769
770menu "Advanced setup"
771 depends on PPC32
772
773config ADVANCED_OPTIONS
774 bool "Prompt for advanced kernel configuration options"
775 help
776 This option will enable prompting for a variety of advanced kernel
777 configuration options. These options can cause the kernel to not
778 work if they are set incorrectly, but can be used to optimize certain
779 aspects of kernel memory management.
780
781 Unless you know what you are doing, say N here.
782
783comment "Default settings for advanced configuration options are used"
784 depends on !ADVANCED_OPTIONS
785
786config HIGHMEM_START_BOOL
787 bool "Set high memory pool address"
788 depends on ADVANCED_OPTIONS && HIGHMEM
789 help
790 This option allows you to set the base address of the kernel virtual
791 area used to map high memory pages. This can be useful in
792 optimizing the layout of kernel virtual memory.
793
794 Say N here unless you know what you are doing.
795
796config HIGHMEM_START
797 hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL
798 default "0xfe000000"
799
800config LOWMEM_SIZE_BOOL
801 bool "Set maximum low memory"
802 depends on ADVANCED_OPTIONS
803 help
804 This option allows you to set the maximum amount of memory which
805 will be used as "low memory", that is, memory which the kernel can
806 access directly, without having to set up a kernel virtual mapping.
807 This can be useful in optimizing the layout of kernel virtual
808 memory.
809
810 Say N here unless you know what you are doing.
811
812config LOWMEM_SIZE
813 hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
814 default "0x30000000"
815
816config KERNEL_START_BOOL
817 bool "Set custom kernel base address"
818 depends on ADVANCED_OPTIONS
819 help
820 This option allows you to set the kernel virtual address at which
821 the kernel will map low memory (the kernel image will be linked at
822 this address). This can be useful in optimizing the virtual memory
823 layout of the system.
824
825 Say N here unless you know what you are doing.
826
827config KERNEL_START
828 hex "Virtual address of kernel base" if KERNEL_START_BOOL
829 default "0xc0000000"
830
831config TASK_SIZE_BOOL
832 bool "Set custom user task size"
833 depends on ADVANCED_OPTIONS
834 help
835 This option allows you to set the amount of virtual address space
836 allocated to user tasks. This can be useful in optimizing the
837 virtual memory layout of the system.
838
839 Say N here unless you know what you are doing.
840
841config TASK_SIZE
842 hex "Size of user task space" if TASK_SIZE_BOOL
843 default "0x80000000"
844
845config CONSISTENT_START_BOOL
846 bool "Set custom consistent memory pool address"
847 depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
848 help
849 This option allows you to set the base virtual address
850 of the the consistent memory pool. This pool of virtual
851 memory is used to make consistent memory allocations.
852
853config CONSISTENT_START
854 hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL
855 default "0xff100000" if NOT_COHERENT_CACHE
856
857config CONSISTENT_SIZE_BOOL
858 bool "Set custom consistent memory pool size"
859 depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
860 help
861 This option allows you to set the size of the the
862 consistent memory pool. This pool of virtual memory
863 is used to make consistent memory allocations.
864
865config CONSISTENT_SIZE
866 hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
867 default "0x00200000" if NOT_COHERENT_CACHE
868
869config BOOT_LOAD_BOOL
870 bool "Set the boot link/load address"
871 depends on ADVANCED_OPTIONS && !PPC_MULTIPLATFORM
872 help
873 This option allows you to set the initial load address of the zImage
874 or zImage.initrd file. This can be useful if you are on a board
875 which has a small amount of memory.
876
877 Say N here unless you know what you are doing.
878
879config BOOT_LOAD
880 hex "Link/load address for booting" if BOOT_LOAD_BOOL
881 default "0x00400000" if 40x || 8xx || 8260
882 default "0x01000000" if 44x
883 default "0x00800000"
884
885config PIN_TLB
886 bool "Pinned Kernel TLBs (860 ONLY)"
887 depends on ADVANCED_OPTIONS && 8xx
888endmenu
889
cabb5587
SR
890if PPC64
891config KERNEL_START
892 hex
eeb2d218 893 default "0xc000000000000000"
cabb5587
SR
894endif
895
14cf11af
PM
896source "net/Kconfig"
897
898source "drivers/Kconfig"
899
900source "fs/Kconfig"
901
902# XXX source "arch/ppc/8xx_io/Kconfig"
903
904# XXX source "arch/ppc/8260_io/Kconfig"
905
906source "arch/powerpc/platforms/iseries/Kconfig"
907
908source "lib/Kconfig"
909
910source "arch/powerpc/oprofile/Kconfig"
911
912source "arch/powerpc/Kconfig.debug"
913
914source "security/Kconfig"
915
916config KEYS_COMPAT
917 bool
918 depends on COMPAT && KEYS
919 default y
920
921source "crypto/Kconfig"