1 # For a description of the syntax of this configuration file,
2 # see Documentation/kbuild/kconfig-language.txt.
5 mainmenu "Linux/PowerPC Kernel Configuration"
14 config RWSEM_GENERIC_SPINLOCK
17 config RWSEM_XCHGADD_ALGORITHM
33 # All PPCs use generic nvram driver through ppc_md
43 prompt "Processor Type"
47 bool "6xx/7xx/74xx/8260"
49 There are four types of PowerPC chips supported. The more common
50 types (601, 603, 604, 740, 750, 7400), the Motorola embedded
51 versions (821, 823, 850, 855, 860, 8260), the IBM embedded versions
52 (403 and 405) and the high end 64 bit Power processors (POWER 3,
53 POWER4, and IBM 970 also known as G5)
54 Unless you are building a kernel for one of the embedded processor
55 systems, 64 bit IBM RS/6000 or an Apple G5, choose 6xx.
56 Note that the kernel runs in 32-bit mode even on 64-bit chips.
57 Also note that because the 82xx family has a 603e core, specific
58 support for that chipset is asked later on.
70 bool "POWER4 and 970 (G5)"
96 bool "AltiVec Support"
97 depends on 6xx || POWER4
100 This option enables kernel support for the Altivec extensions to the
101 PowerPC processor. The kernel currently supports saving and restoring
102 altivec registers, and turning on the 'altivec enable' bit so user
103 processes can execute altivec instructions.
105 This option is only usefully if you have a processor that supports
106 altivec (G4, otherwise known as 74xx series), but does not have
107 any affect on a non-altivec cpu (it does, however add code to the
110 If in doubt, say Y here.
116 This option enables kernel support for the Signal Processing
117 Extensions (SPE) to the PowerPC processor. The kernel currently
118 supports saving and restoring SPE registers, and turning on the
119 'spe enable' bit so user processes can execute SPE instructions.
121 This option is only usefully if you have a processor that supports
122 SPE (e500, otherwise known as 85xx series), but does not have any
123 affect on a non-spe cpu (it does, however add code to the kernel).
125 If in doubt, say Y here.
128 bool "Thermal Management Support"
129 depends on 6xx && !8260
131 G3 and G4 processors have an on-chip temperature sensor called the
132 'Thermal Assist Unit (TAU)', which, in theory, can measure the on-die
133 temperature within 2-4 degrees Celsius. This option shows the current
134 on-die temperature in /proc/cpuinfo if the cpu supports it.
136 Unfortunately, on some chip revisions, this sensor is very inaccurate
137 and in some cases, does not work at all, so don't assume the cpu
138 temp is actually what /proc/cpuinfo says it is.
141 bool "Interrupt driven TAU driver (DANGEROUS)"
144 The TAU supports an interrupt driven mode which causes an interrupt
145 whenever the temperature goes out of range. This is the fastest way
146 to get notified the temp has exceeded a range. With this option off,
147 a timer is used to re-check the temperature periodically.
149 However, on some cpus it appears that the TAU interrupt hardware
150 is buggy and can cause a situation which would lead unexplained hard
153 Unless you are extending the TAU driver, or enjoy kernel/hardware
154 debugging, leave this option off.
157 bool "Average high and low temp"
160 The TAU hardware can compare the temperature to an upper and lower
161 bound. The default behavior is to show both the upper and lower
162 bound in /proc/cpuinfo. If the range is large, the temperature is
163 either changing a lot, or the TAU hardware is broken (likely on some
164 G4's). If the range is small (around 4 degrees), the temperature is
165 relatively stable. If you say Y here, a single temperature value,
166 halfway between the upper and lower bounds, will be reported in
169 If in doubt, say N here.
171 config MATH_EMULATION
172 bool "Math emulation"
173 depends on 4xx || 8xx || E500
175 Some PowerPC chips designed for embedded applications do not have
176 a floating-point unit and therefore do not implement the
177 floating-point instructions in the PowerPC instruction set. If you
178 say Y here, the kernel will include code to emulate a floating-point
179 unit, which will allow programs that use floating-point
182 If you have an Apple machine or an IBM RS/6000 or pSeries machine,
183 or any machine with a 6xx, 7xx or 7xxx series processor, say N
184 here. Saying Y here will not hurt performance (on any machine) but
185 will increase the size of the kernel.
188 bool "CPU Frequency scaling"
190 Clock scaling allows you to change the clock speed of CPUs on the
191 fly. This is a nice method to save battery power on notebooks,
192 because the lower the clock speed, the less power the CPU consumes.
194 For more information, take a look at linux/Documentation/cpu-freq or
195 at <http://www.brodo.de/cpufreq/>
199 source "drivers/cpufreq/Kconfig"
202 bool "Support for Apple PowerBooks"
203 depends on CPU_FREQ && ADB_PMU
205 This adds support for frequency switching on Apple PowerBooks,
206 this currently includes some models of iBook & Titanium
209 config CPU_FREQ_TABLE
211 depends on CPU_FREQ_PMAC
214 config PPC601_SYNC_FIX
215 bool "Workarounds for PPC601 bugs"
216 depends on 6xx && (PPC_PREP || PPC_PMAC)
218 Some versions of the PPC601 (the first PowerPC chip) have bugs which
219 mean that extra synchronization instructions are required near
220 certain instructions, typically those that make major changes to the
221 CPU state. These extra instructions reduce performance slightly.
222 If you say N here, these extra instructions will not be included,
223 resulting in a kernel which will run faster but may not run at all
224 on some systems with the PPC601 chip.
226 If in doubt, say Y here.
228 source arch/ppc/platforms/4xx/Kconfig
229 source arch/ppc/platforms/85xx/Kconfig
233 depends on POWER3 || POWER4
238 depends on 6xx || POWER3 || POWER4
241 config NOT_COHERENT_CACHE
243 depends on 4xx || 8xx
248 menu "Platform options"
251 prompt "8xx Machine Type"
258 Single-board computers based around the PowerPC MPC8xx chips and
259 intended for embedded applications. The following types are
263 Embedded Planet RPX Lite. PC104 form-factor SBC based on the MPC823.
266 Embedded Planet RPX Classic Low-fat. Credit-card-size SBC based on
270 Bright Star Engineering ip-Engine.
276 MPC8xx based family of mini modules, half credit card size,
277 up to 64 MB of RAM, 8 MB Flash, (Fast) Ethernet, 2 x serial ports,
278 2 x CAN bus interface, ...
279 Manufacturer: TQ Components, www.tq-group.de
280 Date of Release: October (?) 1999
281 End of Life: not yet :-)
283 - module: <http://www.denx.de/PDF/TQM8xxLHWM201.pdf>
284 - starter kit: <http://www.denx.de/PDF/STK8xxLHWM201.pdf>
285 - images: <http://www.denx.de/embedded-ppc-en.html>
288 FingerPrint Sensor System (based on TQM850L)
289 Manufacturer: IKENDI AG, <http://www.ikendi.com/>
290 Date of Release: November 1999
291 End of life: end 2000 ?
295 MPC823 based board used in the "Tele Server" product
296 Manufacturer: Speech Design, <http://www.speech-design.de/>
297 Date of Release: Mid 2000 (?)
299 URL: <http://www.speech-design.de/>
300 select "English", then "Teleteam Solutions", then "TeleServer"
303 MPC860 based board used in the "Integrated Voice Mail System",
304 Small Version (8 voice channels)
305 Manufacturer: Speech Design, <http://www.speech-design.de/>
306 Date of Release: December 2000 (?)
308 URL: <http://www.speech-design.de/>
311 MPC860 based board used in the "Integrated Voice Mail System",
312 Large Version (24 voice channels)
313 Manufacturer: Speech Design, <http://www.speech-design.de/>
314 Date of Release: March 2001 (?)
316 URL: <http://www.speech-design.de/>
319 Service Module (based on TQM850L)
320 Manufacturer: Dependable Computer Systems, <http://www.decomsys.com/>
321 Date of Release: end 2000 (?)
322 End of life: mid 2001 (?)
323 URL: <http://www.tz-mikroelektronik.de/ServiceModule/index.html>
326 Hermes-Pro ISDN/LAN router with integrated 8 x hub
327 Manufacturer: Multidata Gesellschaft für Datentechnik und Informatik
328 <http://www.multidata.de/>
329 Date of Release: 2000 (?)
331 URL: <http://www.multidata.de/english/products/hpro.htm>
334 VMEBus IP (Industry Pack) carrier board with MPC860
335 Manufacturer: MicroSys GmbH, <http://www.microsys.de/>
338 URL: <http://www.microsys.de/html/ip860.html>
341 PCU = Peripheral Controller Unit, Extended
342 Manufacturer: Siemens AG, ICN (Information and Communication Networks)
343 <http://www.siemens.de/page/1,3771,224315-1-999_2_226207-0,00.html>
344 Date of Release: April 2001
345 End of life: August 2001
351 The RPX-Classic is a single-board computer based on the Motorola
352 MPC860. It features 16MB of DRAM and a variable amount of flash,
353 I2C EEPROM, thermal monitoring, a PCMCIA slot, a DIP switch and two
354 LEDs. Variants with Ethernet ports exist. Say Y here to support it
360 Say Y here to support the Bright Star Engineering ipEngine SBC.
361 This is a credit-card-sized device featuring a MPC823 processor,
362 26MB DRAM, 4MB flash, Ethernet, a 16K-gate FPGA, USB, an LCD/video
363 controller, and two RS232 ports.
371 Say Y here to support the TQM823L, one of an MPC8xx-based family of
372 mini SBCs (half credit-card size) from TQ Components first released
373 in late 1999. Technical references are at
374 <http://www.denx.de/PDF/TQM8xxLHWM201.pdf>, and
375 <http://www.denx.de/PDF/STK8xxLHWM201.pdf>, and an image at
376 <http://www.denx.de/embedded-ppc-en.html>.
381 Say Y here to support the TQM850L, one of an MPC8xx-based family of
382 mini SBCs (half credit-card size) from TQ Components first released
383 in late 1999. Technical references are at
384 <http://www.denx.de/PDF/TQM8xxLHWM201.pdf>, and
385 <http://www.denx.de/PDF/STK8xxLHWM201.pdf>, and an image at
386 <http://www.denx.de/embedded-ppc-en.html>.
391 Say Y here to support the TQM855L, one of an MPC8xx-based family of
392 mini SBCs (half credit-card size) from TQ Components first released
393 in late 1999. Technical references are at
394 <http://www.denx.de/PDF/TQM8xxLHWM201.pdf>, and
395 <http://www.denx.de/PDF/STK8xxLHWM201.pdf>, and an image at
396 <http://www.denx.de/embedded-ppc-en.html>.
401 Say Y here to support the TQM860L, one of an MPC8xx-based family of
402 mini SBCs (half credit-card size) from TQ Components first released
403 in late 1999. Technical references are at
404 <http://www.denx.de/PDF/TQM8xxLHWM201.pdf>, and
405 <http://www.denx.de/PDF/STK8xxLHWM201.pdf>, and an image at
406 <http://www.denx.de/embedded-ppc-en.html>.
414 Say Y here to support the Speech Design 823 Tele-Server from Speech
415 Design, released in 2000. The manufacturer's website is at
416 <http://www.speech-design.de/>.
421 Say Y here to support the Integrated Voice-Mail Small 8-channel SBC
422 from Speech Design, released March 2001. The manufacturer's website
423 is at <http://www.speech-design.de/>.
428 Say Y here to support the Integrated Voice-Mail Large 24-channel SBC
429 from Speech Design, released March 2001. The manufacturer's website
430 is at <http://www.speech-design.de/>.
435 Say Y here to support the Service Module 850 from Dependable
436 Computer Systems, an SBC based on the TQM850L module by TQ
437 Components. This board is no longer in production. The
438 manufacturer's website is at <http://www.decomsys.com/>.
461 MBX is a line of Motorola single-board computer based around the
462 MPC821 and MPC860 processors, and intended for embedded-controller
463 applications. Say Y here to support these boards directly.
468 The Wincept 100/110 is a Motorola single-board computer based on the
469 MPC821 PowerPC, introduced in 1998 and designed to be used in
470 thin-client machines. Say Y to support it directly.
475 prompt "Machine Type"
476 depends on 6xx || POWER3 || POWER4
477 default PPC_MULTIPLATFORM
479 Linux currently supports several different kinds of PowerPC-based
480 machines: Apple Power Macintoshes and clones (such as the Motorola
481 Starmax series), PReP (PowerPC Reference Platform) machines (such
482 as the Motorola PowerStacks, Motorola cPCI/VME embedded systems,
483 and some IBM RS/6000 systems), CHRP (Common Hardware Reference
484 Platform) machines (including all of the recent IBM RS/6000 and
485 pSeries machines), and several embedded PowerPC systems containing
486 4xx, 6xx, 7xx, 8xx, 74xx, and 82xx processors. Currently, the
487 default option is to build a kernel which works on the first three.
489 Select CHRP/PowerMac/PReP if configuring for an IBM RS/6000 or
490 pSeries machine, a Power Macintosh (including iMacs, iBooks and
491 Powerbooks), or a PReP machine.
493 Select Gemini if configuring for a Synergy Microsystems' Gemini
494 series Single Board Computer. More information is available at:
495 <http://www.synergymicro.com/PressRel/97_10_15.html>.
497 Select APUS if configuring for a PowerUP Amiga. More information is
498 available at: <http://linux-apus.sourceforge.net/>.
500 config PPC_MULTIPLATFORM
501 bool "CHRP/PowerMac/PReP"
506 Select APUS if configuring for a PowerUP Amiga.
507 More information is available at:
508 <http://linux-apus.sourceforge.net/>.
514 bool "Force-PowerCore"
517 bool "Force-PowerPMC250"
520 bool "Galileo-EV-64260-BP"
526 bool "Motorola-LoPEC"
529 bool "Motorola-MCPN765"
532 bool "Motorola-MVME5100"
535 bool "Motorola-PowerPlus"
538 bool "Motorola-PrPMC750"
541 bool "Motorola-PrPMC800"
544 bool "Motorola-Sandpoint"
546 Select SANDPOINT if configuring for a Motorola Sandpoint X3
550 bool "SBS-Adirondack"
559 bool "Synergy-Gemini"
561 Select Gemini if configuring for a Synergy Microsystems' Gemini
562 series Single Board Computer. More information is available at:
563 <http://www.synergymicro.com/PressRel/97_10_15.html>.
568 The EST8260 is a single-board computer manufactured by Wind River
569 Systems, Inc. (formerly Embedded Support Tools Corp.) and based on
570 the MPC8260. Wind River Systems has a website at
571 <http://www.windriver.com/>, but the EST8260 cannot be found on it
572 and has probably been discontinued or rebadged.
577 SBC PowerQUICC II, single-board computer with MPC82xx CPU
578 Manufacturer: Wind River Systems, Inc.
579 Date of Release: May 2003
581 URL: <http://www.windriver.com/>
592 MPC8260 based module, little larger than credit card,
593 up to 128 MB global + 64 MB local RAM, 32 MB Flash,
594 32 kB EEPROM, 256 kB L@ Cache, 10baseT + 100baseT Ethernet,
595 2 x serial ports, ...
596 Manufacturer: TQ Components, www.tq-group.de
597 Date of Release: June 2001
598 End of Life: not yet :-)
599 URL: <http://www.denx.de/PDF/TQM82xx_SPEC_Rev005.pdf>
613 depends on 8xx && (TQM823L || TQM850L || FPS850L || TQM855L || TQM860L || SM850)
618 depends on 8xx || 8260
622 bool "CPM2 Support" if WILLOW
624 default y if TQM8260 || RPXSUPER || EST8260 || SBS8260 || SBC82xx
626 The MPC8260 is a typical embedded CPU made by Motorola. Selecting
627 this option means that you wish to build a kernel for a machine with
636 The MPC8272 CPM has a different internal dpram setup than other CPM2
644 The CPM2 (Communications Processor Module) is a coprocessor on
645 embedded CPUs made by Motorola. Selecting this option means that
646 you wish to build a kernel for a machine with a CPM2 coprocessor
647 on it (826x, 827x, 8560).
651 depends on PPC_MULTIPLATFORM
656 depends on PPC_MULTIPLATFORM
661 depends on PPC_PMAC && POWER4
666 depends on PPC_MULTIPLATFORM
671 depends on PPC_PMAC || PPC_CHRP
676 depends on SANDPOINT || MCPN765 || SPRUCE || PPLUS || PCORE || PRPMC750 || K2 || PRPMC800
681 depends on 6xx && (PCORE || POWERPMC250)
689 config NONMONARCH_SUPPORT
690 bool "Enable Non-Monarch Support"
698 config EPIC_SERIAL_MODE
700 depends on 6xx && (LOPEC || SANDPOINT)
705 depends on PCORE || POWERPMC250 || LOPEC || SANDPOINT
710 depends on MPC10X_BRIDGE
713 config MPC10X_OPENPIC
715 depends on POWERPMC250 || LOPEC || SANDPOINT
718 config MPC10X_STORE_GATHERING
719 bool "Enable MPC10x store gathering"
720 depends on MPC10X_BRIDGE
722 config CPC710_DATA_GATHERING
723 bool "Enable CPC710 data gathering"
726 config HARRIER_STORE_GATHERING
727 bool "Enable Harrier store gathering"
730 config MVME5100_IPMC761_PRESENT
731 bool "MVME5100 configured with an IPMC761"
734 config SPRUCE_BAUD_33M
735 bool "Spruce baud clock support"
739 bool "PC PS/2 style Keyboard"
740 depends on 4xx || CPM2
742 config SERIAL_CONSOLE
747 config SERIAL_CONSOLE_BAUD
753 bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC
754 default y if PPC_PREP
757 bool "Symmetric multi-processing support"
759 This enables support for systems with more than one CPU. If you have
760 a system with only one CPU, say N. If you have a system with more
761 than one CPU, say Y. Note that the kernel does not currently
762 support SMP machines with 603/603e/603ev or PPC750 ("G3") processors
763 since they have inadequate hardware support for multiprocessor
766 If you say N here, the kernel will run on single and multiprocessor
767 machines, but will use only one CPU of a multiprocessor machine. If
768 you say Y here, the kernel will run on single-processor machines.
769 On a single-processor machine, the kernel will run faster if you say
772 If you don't know what to do here, say N.
775 bool "Distribute interrupts on all CPUs by default"
778 This option gives the kernel permission to distribute IRQs across
779 multiple CPUs. Saying N here will route all IRQs to the first
780 CPU. Generally saying Y is safe, although some problems have been
781 reported with SMP Power Macintoshes with this option enabled.
784 int "Maximum number of CPUs (2-32)"
790 bool "Preemptible Kernel"
792 This option reduces the latency of the kernel when reacting to
793 real-time or interactive events by allowing a low priority process to
794 be preempted even if it is in kernel mode executing a system call.
796 Say Y here if you are building a kernel for a desktop, embedded
797 or real-time system. Say N if you are unsure.
800 bool "High memory support"
806 source "fs/Kconfig.binfmt"
808 config PROC_DEVICETREE
809 bool "Support for Open Firmware device tree in /proc"
810 depends on PPC_OF && PROC_FS
812 This option adds a device-tree directory under /proc which contains
813 an image of the device tree that the kernel copies from Open
814 Firmware. If unsure, say Y here.
817 bool "Support for RTAS (RunTime Abstraction Services) in /proc"
818 depends on PPC_OF && PROC_FS
820 When you use this option, you will be able to use RTAS from
823 RTAS stands for RunTime Abstraction Services and should
824 provide a portable way to access and set system information. This is
825 commonly used on RS/6000 (pSeries) computers.
827 You can access RTAS via the special proc file system entry rtas.
828 Don't confuse this rtas entry with the one in /proc/device-tree/rtas
831 If you don't know if you can use RTAS look into
832 /proc/device-tree/rtas. If there are some entries, it is very likely
833 that you will be able to use RTAS.
835 You can do cool things with rtas. To print out information about
836 various sensors in the system, just do a
838 $ cat /proc/rtas/sensors
840 or if you power off your machine at night but want it running when
841 you enter your office at 7:45 am, do a
843 # date -d 'tomorrow 7:30' +%s > /proc/rtas/poweron
850 bool "Support for PReP Residual Data"
853 Some PReP systems have residual data passed to the kernel by the
854 firmware. This allows detection of memory size, devices present and
855 other useful pieces of information. Sometimes this information is
856 not present or incorrect.
858 Unless you expect to boot on a PReP system, there is no need to
861 config PROC_PREPRESIDUAL
862 bool "Support for reading of PReP Residual Data in /proc"
863 depends on PREP_RESIDUAL && PROC_FS
865 Enabling this option will create a /proc/residual file which allows
866 you to get at the residual data on PReP systems. You will need a tool
867 (lsresidual) to parse it. If you aren't on a PReP system, you don't
871 bool "Default bootloader kernel arguments"
874 string "Initial kernel command string"
875 depends on CMDLINE_BOOL
876 default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
878 On some platforms, there is currently no way for the boot loader to
879 pass arguments to the kernel. For these platforms, you can supply
880 some command-line options at build time by entering them here. In
881 most cases you will need to specify the root device here.
888 This option enables support for the Amiga series of computers.
895 This enables support for the Zorro bus in the Amiga. If you have
896 expansion cards in your Amiga that conform to the Amiga
897 AutoConfig(tm) specification, say Y, otherwise N. Note that even
898 expansion cards that do not fit in the Zorro slots but fit in e.g.
899 the CPU slot may fall in this category, so you have to say Y to let
902 config ABSTRACT_CONSOLE
907 config APUS_FAST_EXCEPT
913 bool "Amiga 1200/600 PCMCIA support"
914 depends on APUS && EXPERIMENTAL
916 Include support in the kernel for pcmcia on Amiga 1200 and Amiga
917 600. If you intend to use pcmcia cards say Y; otherwise say N.
919 config AMIGA_BUILTIN_SERIAL
920 tristate "Amiga builtin serial support"
923 If you want to use your Amiga's built-in serial port in Linux,
926 To compile this driver as a module, choose M here.
929 tristate "GVP IO-Extender support"
932 If you want to use a GVP IO-Extender serial card in Linux, say Y.
936 tristate "GVP IO-Extender parallel printer support"
939 Say Y to enable driving a printer from the parallel port on your
940 GVP IO-Extender card, N otherwise.
943 tristate "GVP IO-Extender PLIP support"
946 Say Y to enable doing IP over the parallel port on your GVP
947 IO-Extender card, N otherwise.
949 config MULTIFACE_III_TTY
950 tristate "Multiface Card III serial support"
953 If you want to use a Multiface III card's serial port in Linux,
956 To compile this driver as a module, choose M here.
959 tristate "Commodore A2232 serial support (EXPERIMENTAL)"
960 depends on EXPERIMENTAL && APUS
962 This option supports the 2232 7-port serial card shipped with the
963 Amiga 2000 and other Zorro-bus machines, dating from 1989. At
964 a max of 19,200 bps, the ports are served by a 6551 ACIA UART chip
965 each, plus a 8520 CIA, and a master 6502 CPU and buffer as well. The
966 ports were connected with 8 pin DIN connectors on the card bracket,
967 for which 8 pin to DB25 adapters were supplied. The card also had
968 jumpers internally to toggle various pinning configurations.
970 This driver can be built as a module; but then "generic_serial"
971 will also be built as a module. This has to be loaded before
972 "ser_a2232". If you want to do this, answer M here.
974 config WHIPPET_SERIAL
975 tristate "Hisoft Whippet PCMCIA serial support"
976 depends on AMIGA_PCMCIA
978 HiSoft has a web page at <http://www.hisoft.co.uk/>, but there
979 is no listing for the Whippet in their Amiga section.
982 tristate "PCMCIA NE2000 support"
983 depends on AMIGA_PCMCIA
985 If you have a PCMCIA NE2000 compatible adapter, say Y. Otherwise,
988 To compile this driver as a module, choose M here: the
989 module will be called apne.
991 config SERIAL_CONSOLE
992 bool "Support for serial port console"
993 depends on APUS && (AMIGA_BUILTIN_SERIAL=y || GVPIOEXT=y || MULTIFACE_III_TTY=y)
996 bool "Use power LED as a heartbeat"
999 Use the power-on LED on your machine as a load meter. The exact
1000 behavior is platform-dependent, but normally the flash frequency is
1001 a hyperbolic function of the 5-minute load average.
1003 config PROC_HARDWARE
1004 bool "/proc/hardware support"
1007 source "drivers/zorro/Kconfig"
1014 bool "Support for ISA-bus hardware"
1015 depends on PPC_PREP || PPC_CHRP
1017 Find out whether you have ISA slots on your motherboard. ISA is the
1018 name of a bus system, i.e. the way the CPU talks to the other stuff
1019 inside your box. If you have an Apple machine, say N here; if you
1020 have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If
1021 you have an embedded board, consult your board documentation.
1023 config GENERIC_ISA_DMA
1025 depends on POWER3 || POWER4 || 6xx && !CPM2
1031 The Extended Industry Standard Architecture (EISA) bus is a bus
1032 architecture used on some older intel-based PCs.
1037 # Yes MCA RS/6000s exist but Linux-PPC does not currently support any
1042 bool "PCI support" if 40x || CPM2 || 85xx
1043 default y if !40x && !CPM2 && !8xx && !APUS && !85xx
1044 default PCI_PERMEDIA if !4xx && !CPM2 && !8xx && APUS
1045 default PCI_QSPAN if !4xx && !CPM2 && 8xx
1047 Find out whether your system includes a PCI bus. PCI is the name of
1048 a bus system, i.e. the way the CPU talks to the other stuff inside
1049 your box. If you say Y here, the kernel will include drivers and
1050 infrastructure code to support PCI bus devices.
1058 depends on !4xx && !CPM2 && 8xx
1060 Say Y here if you have a system based on a Motorola 8xx-series
1061 embedded processor with a QSPAN PCI interface, otherwise say N.
1065 depends on PCI && 8260 && !8272
1069 bool " Enable workaround for MPC826x erratum PCI 9"
1074 prompt " IDMA channel for PCI 9 workaround"
1075 depends on 8260_PCI9
1077 config 8260_PCI9_IDMA1
1080 config 8260_PCI9_IDMA2
1083 config 8260_PCI9_IDMA3
1086 config 8260_PCI9_IDMA4
1092 bool "PCI for Permedia2"
1093 depends on !4xx && !8xx && APUS
1095 source "drivers/pci/Kconfig"
1097 source "drivers/pcmcia/Kconfig"
1101 menu "Advanced setup"
1103 config ADVANCED_OPTIONS
1104 bool "Prompt for advanced kernel configuration options"
1106 This option will enable prompting for a variety of advanced kernel
1107 configuration options. These options can cause the kernel to not
1108 work if they are set incorrectly, but can be used to optimize certain
1109 aspects of kernel memory management.
1111 Unless you know what you are doing, say N here.
1113 comment "Default settings for advanced configuration options are used"
1114 depends on !ADVANCED_OPTIONS
1116 config HIGHMEM_START_BOOL
1117 bool "Set high memory pool address"
1118 depends on ADVANCED_OPTIONS && HIGHMEM
1120 This option allows you to set the base address of the kernel virtual
1121 area used to map high memory pages. This can be useful in
1122 optimizing the layout of kernel virtual memory.
1124 Say N here unless you know what you are doing.
1126 config HIGHMEM_START
1127 hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL
1128 default "0xfe000000"
1130 config LOWMEM_SIZE_BOOL
1131 bool "Set maximum low memory"
1132 depends on ADVANCED_OPTIONS
1134 This option allows you to set the maximum amount of memory which
1135 will be used as "low memory", that is, memory which the kernel can
1136 access directly, without having to set up a kernel virtual mapping.
1137 This can be useful in optimizing the layout of kernel virtual
1140 Say N here unless you know what you are doing.
1143 hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
1144 default "0x30000000"
1146 config KERNEL_START_BOOL
1147 bool "Set custom kernel base address"
1148 depends on ADVANCED_OPTIONS
1150 This option allows you to set the kernel virtual address at which
1151 the kernel will map low memory (the kernel image will be linked at
1152 this address). This can be useful in optimizing the virtual memory
1153 layout of the system.
1155 Say N here unless you know what you are doing.
1158 hex "Virtual address of kernel base" if KERNEL_START_BOOL
1159 default "0xc0000000"
1161 config TASK_SIZE_BOOL
1162 bool "Set custom user task size"
1163 depends on ADVANCED_OPTIONS
1165 This option allows you to set the amount of virtual address space
1166 allocated to user tasks. This can be useful in optimizing the
1167 virtual memory layout of the system.
1169 Say N here unless you know what you are doing.
1172 hex "Size of user task space" if TASK_SIZE_BOOL
1173 default "0x80000000"
1175 config CONSISTENT_START_BOOL
1176 bool "Set custom consistent memory pool address"
1177 depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
1179 This option allows you to set the base virtual address
1180 of the the consistent memory pool. This pool of virtual
1181 memory is used to make consistent memory allocations.
1183 config CONSISTENT_START
1184 hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL
1185 default "0xff100000" if NOT_COHERENT_CACHE
1187 config CONSISTENT_SIZE_BOOL
1188 bool "Set custom consistent memory pool size"
1189 depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
1191 This option allows you to set the size of the the
1192 consistent memory pool. This pool of virtual memory
1193 is used to make consistent memory allocations.
1195 config CONSISTENT_SIZE
1196 hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
1197 default "0x00200000" if NOT_COHERENT_CACHE
1199 config BOOT_LOAD_BOOL
1200 bool "Set the boot link/load address"
1201 depends on ADVANCED_OPTIONS && !PPC_MULTIPLATFORM
1203 This option allows you to set the initial load address of the zImage
1204 or zImage.initrd file. This can be useful if you are on a board
1205 which has a small amount of memory.
1207 Say N here unless you know what you are doing.
1210 hex "Link/load address for booting" if BOOT_LOAD_BOOL
1211 default "0x00400000" if 40x || 8xx || 8260
1212 default "0x01000000" if 44x
1213 default "0x00800000"
1216 bool "Pinned Kernel TLBs (860 ONLY)"
1217 depends on ADVANCED_OPTIONS && 8xx
1220 source "drivers/Kconfig"
1224 source "arch/ppc/8xx_io/Kconfig"
1226 source "arch/ppc/8260_io/Kconfig"
1229 menu "IBM 40x options"
1233 bool "SICC Serial port"
1236 config UART1_DFLT_CONSOLE
1238 depends on SERIAL_SICC && UART0_TTYS1
1241 config SERIAL_SICC_CONSOLE
1243 depends on SERIAL_SICC && UART0_TTYS1
1248 source "lib/Kconfig"
1250 source "arch/ppc/oprofile/Kconfig"
1252 menu "Kernel hacking"
1255 bool "Kernel debugging"
1258 bool "Debug memory allocations"
1259 depends on DEBUG_KERNEL
1262 bool "Magic SysRq key"
1263 depends on DEBUG_KERNEL
1265 If you say Y here, you will have some control over the system even
1266 if the system crashes for example during kernel debugging (e.g., you
1267 will be able to flush the buffer cache to disk, reboot the system
1268 immediately or dump some status information). This is accomplished
1269 by pressing various keys while holding SysRq (Alt+PrintScreen). It
1270 also works on a serial console (on PC hardware at least), if you
1271 send a BREAK and then within 5 seconds a command keypress. The
1272 keys are documented in <file:Documentation/sysrq.txt>. Don't say Y
1273 unless you really know what this hack does.
1275 config DEBUG_SPINLOCK
1276 bool "Spinlock debugging"
1277 depends on DEBUG_KERNEL
1279 Say Y here and to CONFIG_SMP to include code to check for missing
1280 spinlock initialization and some other common spinlock errors.
1282 config DEBUG_HIGHMEM
1283 bool "Highmem debugging"
1284 depends on DEBUG_KERNEL && HIGHMEM
1286 This options enables additional error checking for high memory
1287 systems. Disable for production systems.
1289 config DEBUG_SPINLOCK_SLEEP
1290 bool "Sleep-inside-spinlock checking"
1291 depends on DEBUG_KERNEL
1293 If you say Y here, various routines which may sleep will become very
1294 noisy if they are called with a spinlock held.
1297 bool "Include kgdb kernel debugger"
1298 depends on DEBUG_KERNEL
1301 Include in-kernel hooks for kgdb, the Linux kernel source level
1302 debugger. See <http://kgdb.sourceforge.net/> for more information.
1303 Unless you are intending to debug the kernel, say N here.
1306 prompt "Serial Port"
1325 bool "Enable serial console thru kgdb port"
1326 depends on KGDB && 8xx || CPM2
1328 If you enable this, all serial console messages will be sent
1333 bool "Include xmon kernel debugger"
1334 depends on DEBUG_KERNEL
1336 Include in-kernel hooks for the xmon kernel monitor/debugger.
1337 Unless you are intending to debug the kernel, say N here.
1340 bool "Include BDI-2000 user context switcher"
1341 depends on DEBUG_KERNEL
1343 Include in-kernel support for the Abatron BDI2000 debugger.
1344 Unless you are intending to debug the kernel with one of these
1345 machines, say N here.
1348 bool "Compile the kernel with debug info"
1349 depends on DEBUG_KERNEL
1351 If you say Y here the resulting kernel image will include
1352 debugging info resulting in a larger kernel image.
1353 Say Y here only if you plan to use some sort of debugger to
1355 If you don't debug the kernel, you can say N.
1358 bool "Support for early boot text console (BootX or OpenFirmware only)"
1361 Say Y here to see progress messages from the boot firmware in text
1362 mode. Requires either BootX or Open Firmware.
1364 config SERIAL_TEXT_DEBUG
1365 bool "Support for early boot texts over serial port"
1366 depends on 4xx || GT64260 || LOPEC || PPLUS || PRPMC800 || PPC_GEN550
1370 depends on IBM_OCP || FSL_OCP
1375 source "kernel/vserver/Kconfig"
1377 source "security/Kconfig"
1379 source "crypto/Kconfig"