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Paul Mackerras14cf11a2005-09-26 16:04:21 +10001# 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
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000112config 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"
Paul Mackerras187a0062005-10-06 12:49:05 +1000124 depends on PPC64
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000125 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
Paul Mackerras187a0062005-10-06 12:49:05 +1000133 depends on PPC64
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000134 default y if !POWER4_ONLY
135
136config POWER4
Paul Mackerras187a0062005-10-06 12:49:05 +1000137 depends on PPC64
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000138 def_bool y
139
140config PPC_FPU
Paul Mackerras187a0062005-10-06 12:49:05 +1000141 bool
142 default y if PPC64
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000143
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"
Paul Mackerrasf9bd1702005-10-26 16:47:42 +1000278 select PPC_I8259
Paul Mackerras033ef332005-10-26 17:05:24 +1000279 select PPC_RTAS
280 select RTAS_ERROR_LOGGING
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000281 default y
282
283config PPC_CHRP
284 bool " Common Hardware Reference Platform (CHRP) based machines"
285 depends on PPC_MULTIPLATFORM && PPC32
Paul Mackerrasf9bd1702005-10-26 16:47:42 +1000286 select PPC_I8259
Paul Mackerras25635c72005-10-26 16:36:55 +1000287 select PPC_INDIRECT_PCI
Paul Mackerras033ef332005-10-26 17:05:24 +1000288 select PPC_RTAS
Paul Mackerras830825d2005-10-26 17:16:38 +1000289 select PPC_MPC106
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000290 default y
291
292config PPC_PMAC
293 bool " Apple PowerMac based machines"
294 depends on PPC_MULTIPLATFORM
Paul Mackerras25635c72005-10-26 16:36:55 +1000295 select PPC_INDIRECT_PCI if PPC32
Paul Mackerrasb6a4ce52005-10-26 22:54:17 +1000296 select PPC_MPC106 if PPC32
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000297 default y
298
299config PPC_PMAC64
300 bool
301 depends on PPC_PMAC && POWER4
Paul Mackerras35499c02005-10-22 16:02:39 +1000302 select U3_DART
Paul Mackerras8ad200d2005-11-04 13:28:58 +1100303 select GENERIC_TBSYNC
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000304 default y
305
306config PPC_PREP
307 bool " PowerPC Reference Platform (PReP) based machines"
308 depends on PPC_MULTIPLATFORM && PPC32
Paul Mackerrasf9bd1702005-10-26 16:47:42 +1000309 select PPC_I8259
Paul Mackerras25635c72005-10-26 16:36:55 +1000310 select PPC_INDIRECT_PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000311 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
Paul Mackerras8ad200d2005-11-04 13:28:58 +1100318 select GENERIC_TBSYNC
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000319 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
Arnd Bergmannf3f66f52005-10-31 20:08:37 -0500324config PPC_CELL
325 bool " Cell Broadband Processor Architecture"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000326 depends on PPC_MULTIPLATFORM && PPC64
Paul Mackerras033ef332005-10-26 17:05:24 +1000327 select PPC_RTAS
Arnd Bergmannedf03c12005-10-31 20:08:40 -0500328 select MMIO_NVRAM
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000329
330config PPC_OF
331 bool
Paul Mackerras187a0062005-10-06 12:49:05 +1000332 depends on PPC_MULTIPLATFORM # for now
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000333 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
Paul Mackerrasbbd0abd2005-10-26 21:45:56 +1000346 depends on PPC_PSERIES || PPC_PMAC || PPC_MAPLE || PPC_CHRP
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000347 bool
348 default y
349
Paul Mackerras033ef332005-10-26 17:05:24 +1000350config PPC_RTAS
351 bool
352 default n
353
354config RTAS_ERROR_LOGGING
355 bool
356 depends on PPC_RTAS
357 default n
358
Paul Mackerrasf4fcbbe2005-11-03 14:41:19 +1100359config RTAS_PROC
360 bool "Proc interface to RTAS"
Arnd Bergmanne9add2e2005-10-31 20:08:39 -0500361 depends on PPC_RTAS
Paul Mackerrasf4fcbbe2005-11-03 14:41:19 +1100362 default y
363
364config RTAS_FLASH
365 tristate "Firmware flash interface"
366 depends on PPC64 && RTAS_PROC
Arnd Bergmanne9add2e2005-10-31 20:08:39 -0500367
Arnd Bergmannedf03c12005-10-31 20:08:40 -0500368config MMIO_NVRAM
369 bool
370 default n
371
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000372config MPIC_BROKEN_U3
373 bool
374 depends on PPC_MAPLE
375 default y
376
Arnd Bergmannf3f66f52005-10-31 20:08:37 -0500377config CELL_IIC
378 depends on PPC_CELL
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000379 bool
380 default y
381
382config IBMVIO
383 depends on PPC_PSERIES || PPC_ISERIES
384 bool
385 default y
386
Paul Mackerras830825d2005-10-26 17:16:38 +1000387config PPC_MPC106
388 bool
389 default n
390
Paul Mackerras8ad200d2005-11-04 13:28:58 +1100391config GENERIC_TBSYNC
392 bool
393 default y if CONFIG_PPC32 && CONFIG_SMP
394 default n
395
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000396source "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
Andy Whitcroftffa27b62005-10-28 17:46:58 -0700562config NUMA
563 bool "NUMA support"
564 depends on PPC64
565 default y if SMP && PPC_PSERIES
566
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000567config 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
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000583config 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
Benjamin Herrenschmidt3c726f82005-11-07 11:06:55 +1100606config PPC_64K_PAGES
607 bool "64k page size"
Benjamin Herrenschmidt863c84b2005-11-07 00:57:58 -0800608 depends on PPC64
Benjamin Herrenschmidt3c726f82005-11-07 11:06:55 +1100609 help
610 This option changes the kernel logical page size to 64k. On machines
611 without processor support for 64k pages, the kernel will simulate
612 them by loading each individual 4k page on demand transparently,
613 while on hardware with such support, it will be used to map
614 normal application pages.
615
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000616config SCHED_SMT
617 bool "SMT (Hyperthreading) scheduler support"
618 depends on PPC64 && SMP
619 default off
620 help
621 SMT scheduler support improves the CPU scheduler's decision making
622 when dealing with POWER5 cpus at a cost of slightly increased
623 overhead in some places. If unsure say N here.
624
625config PROC_DEVICETREE
Paul Mackerras5f296752005-10-17 20:14:59 +1000626 bool "Support for device tree in /proc"
627 depends on PROC_FS
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000628 help
629 This option adds a device-tree directory under /proc which contains
630 an image of the device tree that the kernel copies from Open
Paul Mackerras5f296752005-10-17 20:14:59 +1000631 Firmware or other boot firmware. If unsure, say Y here.
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000632
633source "arch/powerpc/platforms/prep/Kconfig"
634
635config CMDLINE_BOOL
636 bool "Default bootloader kernel arguments"
637 depends on !PPC_ISERIES
638
639config CMDLINE
640 string "Initial kernel command string"
641 depends on CMDLINE_BOOL
642 default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
643 help
644 On some platforms, there is currently no way for the boot loader to
645 pass arguments to the kernel. For these platforms, you can supply
646 some command-line options at build time by entering them here. In
647 most cases you will need to specify the root device here.
648
649if !44x || BROKEN
650source kernel/power/Kconfig
651endif
652
653config SECCOMP
654 bool "Enable seccomp to safely compute untrusted bytecode"
655 depends on PROC_FS
656 default y
657 help
658 This kernel feature is useful for number crunching applications
659 that may need to compute untrusted bytecode during their
660 execution. By using pipes or other transports made available to
661 the process as file descriptors supporting the read/write
662 syscalls, it's possible to isolate those applications in
663 their own address space using seccomp. Once seccomp is
664 enabled via /proc/<pid>/seccomp, it cannot be disabled
665 and the task is only allowed to execute a few safe syscalls
666 defined by each seccomp mode.
667
668 If unsure, say Y. Only embedded should say N here.
669
670endmenu
671
672config ISA_DMA_API
673 bool
674 default y
675
676menu "Bus options"
677
678config ISA
679 bool "Support for ISA-bus hardware"
680 depends on PPC_PREP || PPC_CHRP
Paul Mackerrasf9bd1702005-10-26 16:47:42 +1000681 select PPC_I8259
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000682 help
683 Find out whether you have ISA slots on your motherboard. ISA is the
684 name of a bus system, i.e. the way the CPU talks to the other stuff
685 inside your box. If you have an Apple machine, say N here; if you
686 have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If
687 you have an embedded board, consult your board documentation.
688
689config GENERIC_ISA_DMA
690 bool
691 depends on PPC64 || POWER4 || 6xx && !CPM2
692 default y
693
Paul Mackerrasf9bd1702005-10-26 16:47:42 +1000694config PPC_I8259
695 bool
696 default y if 85xx
697 default n
698
Paul Mackerras25635c72005-10-26 16:36:55 +1000699config PPC_INDIRECT_PCI
700 bool
701 depends on PCI
702 default y if 40x || 44x || 85xx || 83xx
703 default n
704
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000705config EISA
706 bool
707
708config SBUS
709 bool
710
711# Yes MCA RS/6000s exist but Linux-PPC does not currently support any
712config MCA
713 bool
714
715config PCI
716 bool "PCI support" if 40x || CPM2 || 83xx || 85xx || PPC_MPC52xx || (EMBEDDED && PPC_ISERIES)
717 default y if !40x && !CPM2 && !8xx && !APUS && !83xx && !85xx
718 default PCI_PERMEDIA if !4xx && !CPM2 && !8xx && APUS
719 default PCI_QSPAN if !4xx && !CPM2 && 8xx
720 help
721 Find out whether your system includes a PCI bus. PCI is the name of
722 a bus system, i.e. the way the CPU talks to the other stuff inside
723 your box. If you say Y here, the kernel will include drivers and
724 infrastructure code to support PCI bus devices.
725
726config PCI_DOMAINS
727 bool
728 default PCI
729
730config MPC83xx_PCI2
731 bool " Supprt for 2nd PCI host controller"
732 depends on PCI && MPC834x
733 default y if MPC834x_SYS
734
735config PCI_QSPAN
736 bool "QSpan PCI"
737 depends on !4xx && !CPM2 && 8xx
Paul Mackerrasf9bd1702005-10-26 16:47:42 +1000738 select PPC_I8259
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000739 help
740 Say Y here if you have a system based on a Motorola 8xx-series
741 embedded processor with a QSPAN PCI interface, otherwise say N.
742
743config PCI_8260
744 bool
745 depends on PCI && 8260
Paul Mackerras25635c72005-10-26 16:36:55 +1000746 select PPC_INDIRECT_PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000747 default y
748
749config 8260_PCI9
750 bool " Enable workaround for MPC826x erratum PCI 9"
751 depends on PCI_8260 && !ADS8272
752 default y
753
754choice
755 prompt " IDMA channel for PCI 9 workaround"
756 depends on 8260_PCI9
757
758config 8260_PCI9_IDMA1
759 bool "IDMA1"
760
761config 8260_PCI9_IDMA2
762 bool "IDMA2"
763
764config 8260_PCI9_IDMA3
765 bool "IDMA3"
766
767config 8260_PCI9_IDMA4
768 bool "IDMA4"
769
770endchoice
771
772source "drivers/pci/Kconfig"
773
774source "drivers/pcmcia/Kconfig"
775
776source "drivers/pci/hotplug/Kconfig"
777
778endmenu
779
780menu "Advanced setup"
781 depends on PPC32
782
783config ADVANCED_OPTIONS
784 bool "Prompt for advanced kernel configuration options"
785 help
786 This option will enable prompting for a variety of advanced kernel
787 configuration options. These options can cause the kernel to not
788 work if they are set incorrectly, but can be used to optimize certain
789 aspects of kernel memory management.
790
791 Unless you know what you are doing, say N here.
792
793comment "Default settings for advanced configuration options are used"
794 depends on !ADVANCED_OPTIONS
795
796config HIGHMEM_START_BOOL
797 bool "Set high memory pool address"
798 depends on ADVANCED_OPTIONS && HIGHMEM
799 help
800 This option allows you to set the base address of the kernel virtual
801 area used to map high memory pages. This can be useful in
802 optimizing the layout of kernel virtual memory.
803
804 Say N here unless you know what you are doing.
805
806config HIGHMEM_START
807 hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL
808 default "0xfe000000"
809
810config LOWMEM_SIZE_BOOL
811 bool "Set maximum low memory"
812 depends on ADVANCED_OPTIONS
813 help
814 This option allows you to set the maximum amount of memory which
815 will be used as "low memory", that is, memory which the kernel can
816 access directly, without having to set up a kernel virtual mapping.
817 This can be useful in optimizing the layout of kernel virtual
818 memory.
819
820 Say N here unless you know what you are doing.
821
822config LOWMEM_SIZE
823 hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
824 default "0x30000000"
825
826config KERNEL_START_BOOL
827 bool "Set custom kernel base address"
828 depends on ADVANCED_OPTIONS
829 help
830 This option allows you to set the kernel virtual address at which
831 the kernel will map low memory (the kernel image will be linked at
832 this address). This can be useful in optimizing the virtual memory
833 layout of the system.
834
835 Say N here unless you know what you are doing.
836
837config KERNEL_START
838 hex "Virtual address of kernel base" if KERNEL_START_BOOL
839 default "0xc0000000"
840
841config TASK_SIZE_BOOL
842 bool "Set custom user task size"
843 depends on ADVANCED_OPTIONS
844 help
845 This option allows you to set the amount of virtual address space
846 allocated to user tasks. This can be useful in optimizing the
847 virtual memory layout of the system.
848
849 Say N here unless you know what you are doing.
850
851config TASK_SIZE
852 hex "Size of user task space" if TASK_SIZE_BOOL
853 default "0x80000000"
854
855config CONSISTENT_START_BOOL
856 bool "Set custom consistent memory pool address"
857 depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
858 help
859 This option allows you to set the base virtual address
860 of the the consistent memory pool. This pool of virtual
861 memory is used to make consistent memory allocations.
862
863config CONSISTENT_START
864 hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL
865 default "0xff100000" if NOT_COHERENT_CACHE
866
867config CONSISTENT_SIZE_BOOL
868 bool "Set custom consistent memory pool size"
869 depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
870 help
871 This option allows you to set the size of the the
872 consistent memory pool. This pool of virtual memory
873 is used to make consistent memory allocations.
874
875config CONSISTENT_SIZE
876 hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
877 default "0x00200000" if NOT_COHERENT_CACHE
878
879config BOOT_LOAD_BOOL
880 bool "Set the boot link/load address"
881 depends on ADVANCED_OPTIONS && !PPC_MULTIPLATFORM
882 help
883 This option allows you to set the initial load address of the zImage
884 or zImage.initrd file. This can be useful if you are on a board
885 which has a small amount of memory.
886
887 Say N here unless you know what you are doing.
888
889config BOOT_LOAD
890 hex "Link/load address for booting" if BOOT_LOAD_BOOL
891 default "0x00400000" if 40x || 8xx || 8260
892 default "0x01000000" if 44x
893 default "0x00800000"
894
895config PIN_TLB
896 bool "Pinned Kernel TLBs (860 ONLY)"
897 depends on ADVANCED_OPTIONS && 8xx
898endmenu
899
Stephen Rothwellcabb5582005-09-30 16:16:52 +1000900if PPC64
901config KERNEL_START
902 hex
Stephen Rothwelleeb2d212005-09-30 17:24:15 +1000903 default "0xc000000000000000"
Stephen Rothwellcabb5582005-09-30 16:16:52 +1000904endif
905
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000906source "net/Kconfig"
907
908source "drivers/Kconfig"
909
910source "fs/Kconfig"
911
912# XXX source "arch/ppc/8xx_io/Kconfig"
913
914# XXX source "arch/ppc/8260_io/Kconfig"
915
916source "arch/powerpc/platforms/iseries/Kconfig"
917
918source "lib/Kconfig"
919
920source "arch/powerpc/oprofile/Kconfig"
921
922source "arch/powerpc/Kconfig.debug"
923
924source "security/Kconfig"
925
926config KEYS_COMPAT
927 bool
928 depends on COMPAT && KEYS
929 default y
930
931source "crypto/Kconfig"