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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 Mackerras14cf11a2005-09-26 16:04:21 +1000303 default y
304
305config PPC_PREP
306 bool " PowerPC Reference Platform (PReP) based machines"
307 depends on PPC_MULTIPLATFORM && PPC32
Paul Mackerrasf9bd1702005-10-26 16:47:42 +1000308 select PPC_I8259
Paul Mackerras25635c72005-10-26 16:36:55 +1000309 select PPC_INDIRECT_PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000310 default y
311
312config PPC_MAPLE
313 depends on PPC_MULTIPLATFORM && PPC64
314 bool " Maple 970FX Evaluation Board"
315 select U3_DART
316 select MPIC_BROKEN_U3
317 default n
318 help
319 This option enables support for the Maple 970FX Evaluation Board.
320 For more informations, refer to <http://www.970eval.com>
321
Arnd Bergmannf3f66f52005-10-31 20:08:37 -0500322config PPC_CELL
323 bool " Cell Broadband Processor Architecture"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000324 depends on PPC_MULTIPLATFORM && PPC64
Paul Mackerras033ef332005-10-26 17:05:24 +1000325 select PPC_RTAS
Arnd Bergmannedf03c12005-10-31 20:08:40 -0500326 select MMIO_NVRAM
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000327
328config PPC_OF
329 bool
Paul Mackerras187a0062005-10-06 12:49:05 +1000330 depends on PPC_MULTIPLATFORM # for now
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000331 default y
332
333config XICS
334 depends on PPC_PSERIES
335 bool
336 default y
337
338config U3_DART
339 bool
340 depends on PPC_MULTIPLATFORM && PPC64
341 default n
342
343config MPIC
Paul Mackerrasbbd0abd2005-10-26 21:45:56 +1000344 depends on PPC_PSERIES || PPC_PMAC || PPC_MAPLE || PPC_CHRP
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000345 bool
346 default y
347
Paul Mackerras033ef332005-10-26 17:05:24 +1000348config PPC_RTAS
349 bool
350 default n
351
352config RTAS_ERROR_LOGGING
353 bool
354 depends on PPC_RTAS
355 default n
356
Paul Mackerrasf4fcbbe2005-11-03 14:41:19 +1100357config RTAS_PROC
358 bool "Proc interface to RTAS"
Arnd Bergmanne9add2e2005-10-31 20:08:39 -0500359 depends on PPC_RTAS
Paul Mackerrasf4fcbbe2005-11-03 14:41:19 +1100360 default y
361
362config RTAS_FLASH
363 tristate "Firmware flash interface"
364 depends on PPC64 && RTAS_PROC
Arnd Bergmanne9add2e2005-10-31 20:08:39 -0500365
Arnd Bergmannedf03c12005-10-31 20:08:40 -0500366config MMIO_NVRAM
367 bool
368 default n
369
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000370config MPIC_BROKEN_U3
371 bool
372 depends on PPC_MAPLE
373 default y
374
Arnd Bergmannf3f66f52005-10-31 20:08:37 -0500375config CELL_IIC
376 depends on PPC_CELL
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000377 bool
378 default y
379
380config IBMVIO
381 depends on PPC_PSERIES || PPC_ISERIES
382 bool
383 default y
384
Paul Mackerras830825d2005-10-26 17:16:38 +1000385config PPC_MPC106
386 bool
387 default n
388
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000389source "drivers/cpufreq/Kconfig"
390
391config CPU_FREQ_PMAC
392 bool "Support for Apple PowerBooks"
393 depends on CPU_FREQ && ADB_PMU && PPC32
394 select CPU_FREQ_TABLE
395 help
396 This adds support for frequency switching on Apple PowerBooks,
397 this currently includes some models of iBook & Titanium
398 PowerBook.
399
400config PPC601_SYNC_FIX
401 bool "Workarounds for PPC601 bugs"
402 depends on 6xx && (PPC_PREP || PPC_PMAC)
403 help
404 Some versions of the PPC601 (the first PowerPC chip) have bugs which
405 mean that extra synchronization instructions are required near
406 certain instructions, typically those that make major changes to the
407 CPU state. These extra instructions reduce performance slightly.
408 If you say N here, these extra instructions will not be included,
409 resulting in a kernel which will run faster but may not run at all
410 on some systems with the PPC601 chip.
411
412 If in doubt, say Y here.
413
414config TAU
415 bool "Thermal Management Support"
416 depends on 6xx
417 help
418 G3 and G4 processors have an on-chip temperature sensor called the
419 'Thermal Assist Unit (TAU)', which, in theory, can measure the on-die
420 temperature within 2-4 degrees Celsius. This option shows the current
421 on-die temperature in /proc/cpuinfo if the cpu supports it.
422
423 Unfortunately, on some chip revisions, this sensor is very inaccurate
424 and in some cases, does not work at all, so don't assume the cpu
425 temp is actually what /proc/cpuinfo says it is.
426
427config TAU_INT
428 bool "Interrupt driven TAU driver (DANGEROUS)"
429 depends on TAU
430 ---help---
431 The TAU supports an interrupt driven mode which causes an interrupt
432 whenever the temperature goes out of range. This is the fastest way
433 to get notified the temp has exceeded a range. With this option off,
434 a timer is used to re-check the temperature periodically.
435
436 However, on some cpus it appears that the TAU interrupt hardware
437 is buggy and can cause a situation which would lead unexplained hard
438 lockups.
439
440 Unless you are extending the TAU driver, or enjoy kernel/hardware
441 debugging, leave this option off.
442
443config TAU_AVERAGE
444 bool "Average high and low temp"
445 depends on TAU
446 ---help---
447 The TAU hardware can compare the temperature to an upper and lower
448 bound. The default behavior is to show both the upper and lower
449 bound in /proc/cpuinfo. If the range is large, the temperature is
450 either changing a lot, or the TAU hardware is broken (likely on some
451 G4's). If the range is small (around 4 degrees), the temperature is
452 relatively stable. If you say Y here, a single temperature value,
453 halfway between the upper and lower bounds, will be reported in
454 /proc/cpuinfo.
455
456 If in doubt, say N here.
457endmenu
458
459source arch/powerpc/platforms/embedded6xx/Kconfig
460source arch/powerpc/platforms/4xx/Kconfig
461source arch/powerpc/platforms/85xx/Kconfig
462source arch/powerpc/platforms/8xx/Kconfig
463
464menu "Kernel options"
465
466config HIGHMEM
467 bool "High memory support"
468 depends on PPC32
469
470source kernel/Kconfig.hz
471source kernel/Kconfig.preempt
472source "fs/Kconfig.binfmt"
473
474# We optimistically allocate largepages from the VM, so make the limit
475# large enough (16MB). This badly named config option is actually
476# max order + 1
477config FORCE_MAX_ZONEORDER
478 int
479 depends on PPC64
480 default "13"
481
482config MATH_EMULATION
483 bool "Math emulation"
484 depends on 4xx || 8xx || E200 || E500
485 ---help---
486 Some PowerPC chips designed for embedded applications do not have
487 a floating-point unit and therefore do not implement the
488 floating-point instructions in the PowerPC instruction set. If you
489 say Y here, the kernel will include code to emulate a floating-point
490 unit, which will allow programs that use floating-point
491 instructions to run.
492
493config IOMMU_VMERGE
494 bool "Enable IOMMU virtual merging (EXPERIMENTAL)"
495 depends on EXPERIMENTAL && PPC64
496 default n
497 help
498 Cause IO segments sent to a device for DMA to be merged virtually
499 by the IOMMU when they happen to have been allocated contiguously.
500 This doesn't add pressure to the IOMMU allocator. However, some
501 drivers don't support getting large merged segments coming back
502 from *_map_sg(). Say Y if you know the drivers you are using are
503 properly handling this case.
504
505config HOTPLUG_CPU
506 bool "Support for enabling/disabling CPUs"
507 depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC)
508 ---help---
509 Say Y here to be able to disable and re-enable individual
510 CPUs at runtime on SMP machines.
511
512 Say N if you are unsure.
513
514config KEXEC
515 bool "kexec system call (EXPERIMENTAL)"
516 depends on PPC_MULTIPLATFORM && EXPERIMENTAL
517 help
518 kexec is a system call that implements the ability to shutdown your
519 current kernel, and to start another kernel. It is like a reboot
520 but it is indepedent of the system firmware. And like a reboot
521 you can start any kernel with it, not just Linux.
522
523 The name comes from the similiarity to the exec system call.
524
525 It is an ongoing process to be certain the hardware in a machine
526 is properly shutdown, so do not be surprised if this code does not
527 initially work for you. It may help to enable device hotplugging
528 support. As of this writing the exact hardware interface is
529 strongly in flux, so no good recommendation can be made.
530
531config EMBEDDEDBOOT
532 bool
533 depends on 8xx || 8260
534 default y
535
536config PC_KEYBOARD
537 bool "PC PS/2 style Keyboard"
538 depends on 4xx || CPM2
539
540config PPCBUG_NVRAM
541 bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC
542 default y if PPC_PREP
543
544config IRQ_ALL_CPUS
545 bool "Distribute interrupts on all CPUs by default"
546 depends on SMP && !MV64360
547 help
548 This option gives the kernel permission to distribute IRQs across
549 multiple CPUs. Saying N here will route all IRQs to the first
550 CPU. Generally saying Y is safe, although some problems have been
551 reported with SMP Power Macintoshes with this option enabled.
552
553source "arch/powerpc/platforms/pseries/Kconfig"
554
Andy Whitcroftffa27b62005-10-28 17:46:58 -0700555config NUMA
556 bool "NUMA support"
557 depends on PPC64
558 default y if SMP && PPC_PSERIES
559
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000560config ARCH_SELECT_MEMORY_MODEL
561 def_bool y
562 depends on PPC64
563
564config ARCH_FLATMEM_ENABLE
565 def_bool y
566 depends on PPC64 && !NUMA
567
568config ARCH_DISCONTIGMEM_ENABLE
569 def_bool y
570 depends on SMP && PPC_PSERIES
571
572config ARCH_DISCONTIGMEM_DEFAULT
573 def_bool y
574 depends on ARCH_DISCONTIGMEM_ENABLE
575
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000576config ARCH_SPARSEMEM_ENABLE
577 def_bool y
578 depends on ARCH_DISCONTIGMEM_ENABLE
579
580source "mm/Kconfig"
581
582config HAVE_ARCH_EARLY_PFN_TO_NID
583 def_bool y
584 depends on NEED_MULTIPLE_NODES
585
586# Some NUMA nodes have memory ranges that span
587# other nodes. Even though a pfn is valid and
588# between a node's start and end pfns, it may not
589# reside on that node.
590#
591# This is a relatively temporary hack that should
592# be able to go away when sparsemem is fully in
593# place
594
595config NODES_SPAN_OTHER_NODES
596 def_bool y
597 depends on NEED_MULTIPLE_NODES
598
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000599config SCHED_SMT
600 bool "SMT (Hyperthreading) scheduler support"
601 depends on PPC64 && SMP
602 default off
603 help
604 SMT scheduler support improves the CPU scheduler's decision making
605 when dealing with POWER5 cpus at a cost of slightly increased
606 overhead in some places. If unsure say N here.
607
608config PROC_DEVICETREE
Paul Mackerras5f296752005-10-17 20:14:59 +1000609 bool "Support for device tree in /proc"
610 depends on PROC_FS
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000611 help
612 This option adds a device-tree directory under /proc which contains
613 an image of the device tree that the kernel copies from Open
Paul Mackerras5f296752005-10-17 20:14:59 +1000614 Firmware or other boot firmware. If unsure, say Y here.
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000615
616source "arch/powerpc/platforms/prep/Kconfig"
617
618config CMDLINE_BOOL
619 bool "Default bootloader kernel arguments"
620 depends on !PPC_ISERIES
621
622config CMDLINE
623 string "Initial kernel command string"
624 depends on CMDLINE_BOOL
625 default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
626 help
627 On some platforms, there is currently no way for the boot loader to
628 pass arguments to the kernel. For these platforms, you can supply
629 some command-line options at build time by entering them here. In
630 most cases you will need to specify the root device here.
631
632if !44x || BROKEN
633source kernel/power/Kconfig
634endif
635
636config SECCOMP
637 bool "Enable seccomp to safely compute untrusted bytecode"
638 depends on PROC_FS
639 default y
640 help
641 This kernel feature is useful for number crunching applications
642 that may need to compute untrusted bytecode during their
643 execution. By using pipes or other transports made available to
644 the process as file descriptors supporting the read/write
645 syscalls, it's possible to isolate those applications in
646 their own address space using seccomp. Once seccomp is
647 enabled via /proc/<pid>/seccomp, it cannot be disabled
648 and the task is only allowed to execute a few safe syscalls
649 defined by each seccomp mode.
650
651 If unsure, say Y. Only embedded should say N here.
652
653endmenu
654
655config ISA_DMA_API
656 bool
657 default y
658
659menu "Bus options"
660
661config ISA
662 bool "Support for ISA-bus hardware"
663 depends on PPC_PREP || PPC_CHRP
Paul Mackerrasf9bd1702005-10-26 16:47:42 +1000664 select PPC_I8259
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000665 help
666 Find out whether you have ISA slots on your motherboard. ISA is the
667 name of a bus system, i.e. the way the CPU talks to the other stuff
668 inside your box. If you have an Apple machine, say N here; if you
669 have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If
670 you have an embedded board, consult your board documentation.
671
672config GENERIC_ISA_DMA
673 bool
674 depends on PPC64 || POWER4 || 6xx && !CPM2
675 default y
676
Paul Mackerrasf9bd1702005-10-26 16:47:42 +1000677config PPC_I8259
678 bool
679 default y if 85xx
680 default n
681
Paul Mackerras25635c72005-10-26 16:36:55 +1000682config PPC_INDIRECT_PCI
683 bool
684 depends on PCI
685 default y if 40x || 44x || 85xx || 83xx
686 default n
687
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000688config EISA
689 bool
690
691config SBUS
692 bool
693
694# Yes MCA RS/6000s exist but Linux-PPC does not currently support any
695config MCA
696 bool
697
698config PCI
699 bool "PCI support" if 40x || CPM2 || 83xx || 85xx || PPC_MPC52xx || (EMBEDDED && PPC_ISERIES)
700 default y if !40x && !CPM2 && !8xx && !APUS && !83xx && !85xx
701 default PCI_PERMEDIA if !4xx && !CPM2 && !8xx && APUS
702 default PCI_QSPAN if !4xx && !CPM2 && 8xx
703 help
704 Find out whether your system includes a PCI bus. PCI is the name of
705 a bus system, i.e. the way the CPU talks to the other stuff inside
706 your box. If you say Y here, the kernel will include drivers and
707 infrastructure code to support PCI bus devices.
708
709config PCI_DOMAINS
710 bool
711 default PCI
712
713config MPC83xx_PCI2
714 bool " Supprt for 2nd PCI host controller"
715 depends on PCI && MPC834x
716 default y if MPC834x_SYS
717
718config PCI_QSPAN
719 bool "QSpan PCI"
720 depends on !4xx && !CPM2 && 8xx
Paul Mackerrasf9bd1702005-10-26 16:47:42 +1000721 select PPC_I8259
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000722 help
723 Say Y here if you have a system based on a Motorola 8xx-series
724 embedded processor with a QSPAN PCI interface, otherwise say N.
725
726config PCI_8260
727 bool
728 depends on PCI && 8260
Paul Mackerras25635c72005-10-26 16:36:55 +1000729 select PPC_INDIRECT_PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000730 default y
731
732config 8260_PCI9
733 bool " Enable workaround for MPC826x erratum PCI 9"
734 depends on PCI_8260 && !ADS8272
735 default y
736
737choice
738 prompt " IDMA channel for PCI 9 workaround"
739 depends on 8260_PCI9
740
741config 8260_PCI9_IDMA1
742 bool "IDMA1"
743
744config 8260_PCI9_IDMA2
745 bool "IDMA2"
746
747config 8260_PCI9_IDMA3
748 bool "IDMA3"
749
750config 8260_PCI9_IDMA4
751 bool "IDMA4"
752
753endchoice
754
755source "drivers/pci/Kconfig"
756
757source "drivers/pcmcia/Kconfig"
758
759source "drivers/pci/hotplug/Kconfig"
760
761endmenu
762
763menu "Advanced setup"
764 depends on PPC32
765
766config ADVANCED_OPTIONS
767 bool "Prompt for advanced kernel configuration options"
768 help
769 This option will enable prompting for a variety of advanced kernel
770 configuration options. These options can cause the kernel to not
771 work if they are set incorrectly, but can be used to optimize certain
772 aspects of kernel memory management.
773
774 Unless you know what you are doing, say N here.
775
776comment "Default settings for advanced configuration options are used"
777 depends on !ADVANCED_OPTIONS
778
779config HIGHMEM_START_BOOL
780 bool "Set high memory pool address"
781 depends on ADVANCED_OPTIONS && HIGHMEM
782 help
783 This option allows you to set the base address of the kernel virtual
784 area used to map high memory pages. This can be useful in
785 optimizing the layout of kernel virtual memory.
786
787 Say N here unless you know what you are doing.
788
789config HIGHMEM_START
790 hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL
791 default "0xfe000000"
792
793config LOWMEM_SIZE_BOOL
794 bool "Set maximum low memory"
795 depends on ADVANCED_OPTIONS
796 help
797 This option allows you to set the maximum amount of memory which
798 will be used as "low memory", that is, memory which the kernel can
799 access directly, without having to set up a kernel virtual mapping.
800 This can be useful in optimizing the layout of kernel virtual
801 memory.
802
803 Say N here unless you know what you are doing.
804
805config LOWMEM_SIZE
806 hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
807 default "0x30000000"
808
809config KERNEL_START_BOOL
810 bool "Set custom kernel base address"
811 depends on ADVANCED_OPTIONS
812 help
813 This option allows you to set the kernel virtual address at which
814 the kernel will map low memory (the kernel image will be linked at
815 this address). This can be useful in optimizing the virtual memory
816 layout of the system.
817
818 Say N here unless you know what you are doing.
819
820config KERNEL_START
821 hex "Virtual address of kernel base" if KERNEL_START_BOOL
822 default "0xc0000000"
823
824config TASK_SIZE_BOOL
825 bool "Set custom user task size"
826 depends on ADVANCED_OPTIONS
827 help
828 This option allows you to set the amount of virtual address space
829 allocated to user tasks. This can be useful in optimizing the
830 virtual memory layout of the system.
831
832 Say N here unless you know what you are doing.
833
834config TASK_SIZE
835 hex "Size of user task space" if TASK_SIZE_BOOL
836 default "0x80000000"
837
838config CONSISTENT_START_BOOL
839 bool "Set custom consistent memory pool address"
840 depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
841 help
842 This option allows you to set the base virtual address
843 of the the consistent memory pool. This pool of virtual
844 memory is used to make consistent memory allocations.
845
846config CONSISTENT_START
847 hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL
848 default "0xff100000" if NOT_COHERENT_CACHE
849
850config CONSISTENT_SIZE_BOOL
851 bool "Set custom consistent memory pool size"
852 depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
853 help
854 This option allows you to set the size of the the
855 consistent memory pool. This pool of virtual memory
856 is used to make consistent memory allocations.
857
858config CONSISTENT_SIZE
859 hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
860 default "0x00200000" if NOT_COHERENT_CACHE
861
862config BOOT_LOAD_BOOL
863 bool "Set the boot link/load address"
864 depends on ADVANCED_OPTIONS && !PPC_MULTIPLATFORM
865 help
866 This option allows you to set the initial load address of the zImage
867 or zImage.initrd file. This can be useful if you are on a board
868 which has a small amount of memory.
869
870 Say N here unless you know what you are doing.
871
872config BOOT_LOAD
873 hex "Link/load address for booting" if BOOT_LOAD_BOOL
874 default "0x00400000" if 40x || 8xx || 8260
875 default "0x01000000" if 44x
876 default "0x00800000"
877
878config PIN_TLB
879 bool "Pinned Kernel TLBs (860 ONLY)"
880 depends on ADVANCED_OPTIONS && 8xx
881endmenu
882
Stephen Rothwellcabb5582005-09-30 16:16:52 +1000883if PPC64
884config KERNEL_START
885 hex
Stephen Rothwelleeb2d212005-09-30 17:24:15 +1000886 default "0xc000000000000000"
Stephen Rothwellcabb5582005-09-30 16:16:52 +1000887endif
888
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000889source "net/Kconfig"
890
891source "drivers/Kconfig"
892
893source "fs/Kconfig"
894
895# XXX source "arch/ppc/8xx_io/Kconfig"
896
897# XXX source "arch/ppc/8260_io/Kconfig"
898
899source "arch/powerpc/platforms/iseries/Kconfig"
900
901source "lib/Kconfig"
902
903source "arch/powerpc/oprofile/Kconfig"
904
905source "arch/powerpc/Kconfig.debug"
906
907source "security/Kconfig"
908
909config KEYS_COMPAT
910 bool
911 depends on COMPAT && KEYS
912 default y
913
914source "crypto/Kconfig"