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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"
608 help
609 This option changes the kernel logical page size to 64k. On machines
610 without processor support for 64k pages, the kernel will simulate
611 them by loading each individual 4k page on demand transparently,
612 while on hardware with such support, it will be used to map
613 normal application pages.
614
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000615config SCHED_SMT
616 bool "SMT (Hyperthreading) scheduler support"
617 depends on PPC64 && SMP
618 default off
619 help
620 SMT scheduler support improves the CPU scheduler's decision making
621 when dealing with POWER5 cpus at a cost of slightly increased
622 overhead in some places. If unsure say N here.
623
624config PROC_DEVICETREE
Paul Mackerras5f296752005-10-17 20:14:59 +1000625 bool "Support for device tree in /proc"
626 depends on PROC_FS
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000627 help
628 This option adds a device-tree directory under /proc which contains
629 an image of the device tree that the kernel copies from Open
Paul Mackerras5f296752005-10-17 20:14:59 +1000630 Firmware or other boot firmware. If unsure, say Y here.
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000631
632source "arch/powerpc/platforms/prep/Kconfig"
633
634config CMDLINE_BOOL
635 bool "Default bootloader kernel arguments"
636 depends on !PPC_ISERIES
637
638config CMDLINE
639 string "Initial kernel command string"
640 depends on CMDLINE_BOOL
641 default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
642 help
643 On some platforms, there is currently no way for the boot loader to
644 pass arguments to the kernel. For these platforms, you can supply
645 some command-line options at build time by entering them here. In
646 most cases you will need to specify the root device here.
647
648if !44x || BROKEN
649source kernel/power/Kconfig
650endif
651
652config SECCOMP
653 bool "Enable seccomp to safely compute untrusted bytecode"
654 depends on PROC_FS
655 default y
656 help
657 This kernel feature is useful for number crunching applications
658 that may need to compute untrusted bytecode during their
659 execution. By using pipes or other transports made available to
660 the process as file descriptors supporting the read/write
661 syscalls, it's possible to isolate those applications in
662 their own address space using seccomp. Once seccomp is
663 enabled via /proc/<pid>/seccomp, it cannot be disabled
664 and the task is only allowed to execute a few safe syscalls
665 defined by each seccomp mode.
666
667 If unsure, say Y. Only embedded should say N here.
668
669endmenu
670
671config ISA_DMA_API
672 bool
673 default y
674
675menu "Bus options"
676
677config ISA
678 bool "Support for ISA-bus hardware"
679 depends on PPC_PREP || PPC_CHRP
Paul Mackerrasf9bd1702005-10-26 16:47:42 +1000680 select PPC_I8259
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000681 help
682 Find out whether you have ISA slots on your motherboard. ISA is the
683 name of a bus system, i.e. the way the CPU talks to the other stuff
684 inside your box. If you have an Apple machine, say N here; if you
685 have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If
686 you have an embedded board, consult your board documentation.
687
688config GENERIC_ISA_DMA
689 bool
690 depends on PPC64 || POWER4 || 6xx && !CPM2
691 default y
692
Paul Mackerrasf9bd1702005-10-26 16:47:42 +1000693config PPC_I8259
694 bool
695 default y if 85xx
696 default n
697
Paul Mackerras25635c72005-10-26 16:36:55 +1000698config PPC_INDIRECT_PCI
699 bool
700 depends on PCI
701 default y if 40x || 44x || 85xx || 83xx
702 default n
703
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000704config EISA
705 bool
706
707config SBUS
708 bool
709
710# Yes MCA RS/6000s exist but Linux-PPC does not currently support any
711config MCA
712 bool
713
714config PCI
715 bool "PCI support" if 40x || CPM2 || 83xx || 85xx || PPC_MPC52xx || (EMBEDDED && PPC_ISERIES)
716 default y if !40x && !CPM2 && !8xx && !APUS && !83xx && !85xx
717 default PCI_PERMEDIA if !4xx && !CPM2 && !8xx && APUS
718 default PCI_QSPAN if !4xx && !CPM2 && 8xx
719 help
720 Find out whether your system includes a PCI bus. PCI is the name of
721 a bus system, i.e. the way the CPU talks to the other stuff inside
722 your box. If you say Y here, the kernel will include drivers and
723 infrastructure code to support PCI bus devices.
724
725config PCI_DOMAINS
726 bool
727 default PCI
728
729config MPC83xx_PCI2
730 bool " Supprt for 2nd PCI host controller"
731 depends on PCI && MPC834x
732 default y if MPC834x_SYS
733
734config PCI_QSPAN
735 bool "QSpan PCI"
736 depends on !4xx && !CPM2 && 8xx
Paul Mackerrasf9bd1702005-10-26 16:47:42 +1000737 select PPC_I8259
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000738 help
739 Say Y here if you have a system based on a Motorola 8xx-series
740 embedded processor with a QSPAN PCI interface, otherwise say N.
741
742config PCI_8260
743 bool
744 depends on PCI && 8260
Paul Mackerras25635c72005-10-26 16:36:55 +1000745 select PPC_INDIRECT_PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000746 default y
747
748config 8260_PCI9
749 bool " Enable workaround for MPC826x erratum PCI 9"
750 depends on PCI_8260 && !ADS8272
751 default y
752
753choice
754 prompt " IDMA channel for PCI 9 workaround"
755 depends on 8260_PCI9
756
757config 8260_PCI9_IDMA1
758 bool "IDMA1"
759
760config 8260_PCI9_IDMA2
761 bool "IDMA2"
762
763config 8260_PCI9_IDMA3
764 bool "IDMA3"
765
766config 8260_PCI9_IDMA4
767 bool "IDMA4"
768
769endchoice
770
771source "drivers/pci/Kconfig"
772
773source "drivers/pcmcia/Kconfig"
774
775source "drivers/pci/hotplug/Kconfig"
776
777endmenu
778
779menu "Advanced setup"
780 depends on PPC32
781
782config ADVANCED_OPTIONS
783 bool "Prompt for advanced kernel configuration options"
784 help
785 This option will enable prompting for a variety of advanced kernel
786 configuration options. These options can cause the kernel to not
787 work if they are set incorrectly, but can be used to optimize certain
788 aspects of kernel memory management.
789
790 Unless you know what you are doing, say N here.
791
792comment "Default settings for advanced configuration options are used"
793 depends on !ADVANCED_OPTIONS
794
795config HIGHMEM_START_BOOL
796 bool "Set high memory pool address"
797 depends on ADVANCED_OPTIONS && HIGHMEM
798 help
799 This option allows you to set the base address of the kernel virtual
800 area used to map high memory pages. This can be useful in
801 optimizing the layout of kernel virtual memory.
802
803 Say N here unless you know what you are doing.
804
805config HIGHMEM_START
806 hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL
807 default "0xfe000000"
808
809config LOWMEM_SIZE_BOOL
810 bool "Set maximum low memory"
811 depends on ADVANCED_OPTIONS
812 help
813 This option allows you to set the maximum amount of memory which
814 will be used as "low memory", that is, memory which the kernel can
815 access directly, without having to set up a kernel virtual mapping.
816 This can be useful in optimizing the layout of kernel virtual
817 memory.
818
819 Say N here unless you know what you are doing.
820
821config LOWMEM_SIZE
822 hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
823 default "0x30000000"
824
825config KERNEL_START_BOOL
826 bool "Set custom kernel base address"
827 depends on ADVANCED_OPTIONS
828 help
829 This option allows you to set the kernel virtual address at which
830 the kernel will map low memory (the kernel image will be linked at
831 this address). This can be useful in optimizing the virtual memory
832 layout of the system.
833
834 Say N here unless you know what you are doing.
835
836config KERNEL_START
837 hex "Virtual address of kernel base" if KERNEL_START_BOOL
838 default "0xc0000000"
839
840config TASK_SIZE_BOOL
841 bool "Set custom user task size"
842 depends on ADVANCED_OPTIONS
843 help
844 This option allows you to set the amount of virtual address space
845 allocated to user tasks. This can be useful in optimizing the
846 virtual memory layout of the system.
847
848 Say N here unless you know what you are doing.
849
850config TASK_SIZE
851 hex "Size of user task space" if TASK_SIZE_BOOL
852 default "0x80000000"
853
854config CONSISTENT_START_BOOL
855 bool "Set custom consistent memory pool address"
856 depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
857 help
858 This option allows you to set the base virtual address
859 of the the consistent memory pool. This pool of virtual
860 memory is used to make consistent memory allocations.
861
862config CONSISTENT_START
863 hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL
864 default "0xff100000" if NOT_COHERENT_CACHE
865
866config CONSISTENT_SIZE_BOOL
867 bool "Set custom consistent memory pool size"
868 depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
869 help
870 This option allows you to set the size of the the
871 consistent memory pool. This pool of virtual memory
872 is used to make consistent memory allocations.
873
874config CONSISTENT_SIZE
875 hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
876 default "0x00200000" if NOT_COHERENT_CACHE
877
878config BOOT_LOAD_BOOL
879 bool "Set the boot link/load address"
880 depends on ADVANCED_OPTIONS && !PPC_MULTIPLATFORM
881 help
882 This option allows you to set the initial load address of the zImage
883 or zImage.initrd file. This can be useful if you are on a board
884 which has a small amount of memory.
885
886 Say N here unless you know what you are doing.
887
888config BOOT_LOAD
889 hex "Link/load address for booting" if BOOT_LOAD_BOOL
890 default "0x00400000" if 40x || 8xx || 8260
891 default "0x01000000" if 44x
892 default "0x00800000"
893
894config PIN_TLB
895 bool "Pinned Kernel TLBs (860 ONLY)"
896 depends on ADVANCED_OPTIONS && 8xx
897endmenu
898
Stephen Rothwellcabb5582005-09-30 16:16:52 +1000899if PPC64
900config KERNEL_START
901 hex
Stephen Rothwelleeb2d212005-09-30 17:24:15 +1000902 default "0xc000000000000000"
Stephen Rothwellcabb5582005-09-30 16:16:52 +1000903endif
904
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000905source "net/Kconfig"
906
907source "drivers/Kconfig"
908
909source "fs/Kconfig"
910
911# XXX source "arch/ppc/8xx_io/Kconfig"
912
913# XXX source "arch/ppc/8260_io/Kconfig"
914
915source "arch/powerpc/platforms/iseries/Kconfig"
916
917source "lib/Kconfig"
918
919source "arch/powerpc/oprofile/Kconfig"
920
921source "arch/powerpc/Kconfig.debug"
922
923source "security/Kconfig"
924
925config KEYS_COMPAT
926 bool
927 depends on COMPAT && KEYS
928 default y
929
930source "crypto/Kconfig"