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>
605 depends on 8xx && (TQM823L || TQM850L || FPS850L || TQM855L || TQM860L || SM850)
610 depends on 8xx || 8260
614 bool "MPC8260 CPM Support" if WILLOW
616 default y if TQM8260 || RPXSUPER || EST8260 || SBS8260 || SBC82xx
618 The MPC8260 CPM (Communications Processor Module) is a typical
619 embedded CPU made by Motorola. Selecting this option means that
620 you wish to build a kernel for a machine with specifically an 8260
625 depends on PPC_MULTIPLATFORM
630 depends on PPC_MULTIPLATFORM
635 depends on PPC_PMAC && POWER4
640 depends on PPC_MULTIPLATFORM
645 depends on PPC_PMAC || PPC_CHRP
650 depends on SANDPOINT || MCPN765 || SPRUCE || PPLUS || PCORE || PRPMC750 || K2 || PRPMC800
655 depends on 6xx && (PCORE || POWERPMC250)
663 config NONMONARCH_SUPPORT
664 bool "Enable Non-Monarch Support"
672 config EPIC_SERIAL_MODE
674 depends on 6xx && (LOPEC || SANDPOINT)
679 depends on PCORE || POWERPMC250 || LOPEC || SANDPOINT
682 config MPC10X_STORE_GATHERING
683 bool "Enable MPC10x store gathering"
684 depends on MPC10X_BRIDGE
686 config CPC710_DATA_GATHERING
687 bool "Enable CPC710 data gathering"
690 config HARRIER_STORE_GATHERING
691 bool "Enable Harrier store gathering"
694 config MVME5100_IPMC761_PRESENT
695 bool "MVME5100 configured with an IPMC761"
698 config SPRUCE_BAUD_33M
699 bool "Spruce baud clock support"
703 bool "PC PS/2 style Keyboard"
704 depends on 4xx || 8260
706 config SERIAL_CONSOLE
708 depends on 8xx || 8260
711 config SERIAL_CONSOLE_BAUD
717 bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC
718 default y if PPC_PREP
721 bool "Symmetric multi-processing support"
723 This enables support for systems with more than one CPU. If you have
724 a system with only one CPU, say N. If you have a system with more
725 than one CPU, say Y. Note that the kernel does not currently
726 support SMP machines with 603/603e/603ev or PPC750 ("G3") processors
727 since they have inadequate hardware support for multiprocessor
730 If you say N here, the kernel will run on single and multiprocessor
731 machines, but will use only one CPU of a multiprocessor machine. If
732 you say Y here, the kernel will run on single-processor machines.
733 On a single-processor machine, the kernel will run faster if you say
736 If you don't know what to do here, say N.
739 bool "Distribute interrupts on all CPUs by default"
742 This option gives the kernel permission to distribute IRQs across
743 multiple CPUs. Saying N here will route all IRQs to the first
744 CPU. Generally saying Y is safe, although some problems have been
745 reported with SMP Power Macintoshes with this option enabled.
748 int "Maximum number of CPUs (2-32)"
754 bool "Preemptible Kernel"
756 This option reduces the latency of the kernel when reacting to
757 real-time or interactive events by allowing a low priority process to
758 be preempted even if it is in kernel mode executing a system call.
760 Say Y here if you are building a kernel for a desktop, embedded
761 or real-time system. Say N if you are unsure.
764 bool "High memory support"
770 source "fs/Kconfig.binfmt"
772 config PROC_DEVICETREE
773 bool "Support for Open Firmware device tree in /proc"
774 depends on PPC_OF && PROC_FS
776 This option adds a device-tree directory under /proc which contains
777 an image of the device tree that the kernel copies from Open
778 Firmware. If unsure, say Y here.
781 bool "Support for RTAS (RunTime Abstraction Services) in /proc"
782 depends on PPC_OF && PROC_FS
784 When you use this option, you will be able to use RTAS from
787 RTAS stands for RunTime Abstraction Services and should
788 provide a portable way to access and set system information. This is
789 commonly used on RS/6000 (pSeries) computers.
791 You can access RTAS via the special proc file system entry rtas.
792 Don't confuse this rtas entry with the one in /proc/device-tree/rtas
795 If you don't know if you can use RTAS look into
796 /proc/device-tree/rtas. If there are some entries, it is very likely
797 that you will be able to use RTAS.
799 You can do cool things with rtas. To print out information about
800 various sensors in the system, just do a
802 $ cat /proc/rtas/sensors
804 or if you power off your machine at night but want it running when
805 you enter your office at 7:45 am, do a
807 # date -d 'tomorrow 7:30' +%s > /proc/rtas/poweron
814 bool "Support for PReP Residual Data"
817 Some PReP systems have residual data passed to the kernel by the
818 firmware. This allows detection of memory size, devices present and
819 other useful pieces of information. Sometimes this information is
820 not present or incorrect.
822 Unless you expect to boot on a PReP system, there is no need to
825 config PROC_PREPRESIDUAL
826 bool "Support for reading of PReP Residual Data in /proc"
827 depends on PREP_RESIDUAL && PROC_FS
829 Enabling this option will create a /proc/residual file which allows
830 you to get at the residual data on PReP systems. You will need a tool
831 (lsresidual) to parse it. If you aren't on a PReP system, you don't
835 bool "Default bootloader kernel arguments"
838 string "Initial kernel command string"
839 depends on CMDLINE_BOOL
840 default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
842 On some platforms, there is currently no way for the boot loader to
843 pass arguments to the kernel. For these platforms, you can supply
844 some command-line options at build time by entering them here. In
845 most cases you will need to specify the root device here.
852 This option enables support for the Amiga series of computers.
859 This enables support for the Zorro bus in the Amiga. If you have
860 expansion cards in your Amiga that conform to the Amiga
861 AutoConfig(tm) specification, say Y, otherwise N. Note that even
862 expansion cards that do not fit in the Zorro slots but fit in e.g.
863 the CPU slot may fall in this category, so you have to say Y to let
866 config ABSTRACT_CONSOLE
871 config APUS_FAST_EXCEPT
877 bool "Amiga 1200/600 PCMCIA support"
878 depends on APUS && EXPERIMENTAL
880 Include support in the kernel for pcmcia on Amiga 1200 and Amiga
881 600. If you intend to use pcmcia cards say Y; otherwise say N.
883 config AMIGA_BUILTIN_SERIAL
884 tristate "Amiga builtin serial support"
887 If you want to use your Amiga's built-in serial port in Linux,
890 To compile this driver as a module, choose M here.
893 tristate "GVP IO-Extender support"
896 If you want to use a GVP IO-Extender serial card in Linux, say Y.
900 tristate "GVP IO-Extender parallel printer support"
903 Say Y to enable driving a printer from the parallel port on your
904 GVP IO-Extender card, N otherwise.
907 tristate "GVP IO-Extender PLIP support"
910 Say Y to enable doing IP over the parallel port on your GVP
911 IO-Extender card, N otherwise.
913 config MULTIFACE_III_TTY
914 tristate "Multiface Card III serial support"
917 If you want to use a Multiface III card's serial port in Linux,
920 To compile this driver as a module, choose M here.
923 tristate "Commodore A2232 serial support (EXPERIMENTAL)"
924 depends on EXPERIMENTAL && APUS
926 This option supports the 2232 7-port serial card shipped with the
927 Amiga 2000 and other Zorro-bus machines, dating from 1989. At
928 a max of 19,200 bps, the ports are served by a 6551 ACIA UART chip
929 each, plus a 8520 CIA, and a master 6502 CPU and buffer as well. The
930 ports were connected with 8 pin DIN connectors on the card bracket,
931 for which 8 pin to DB25 adapters were supplied. The card also had
932 jumpers internally to toggle various pinning configurations.
934 This driver can be built as a module; but then "generic_serial"
935 will also be built as a module. This has to be loaded before
936 "ser_a2232". If you want to do this, answer M here.
938 config WHIPPET_SERIAL
939 tristate "Hisoft Whippet PCMCIA serial support"
940 depends on AMIGA_PCMCIA
942 HiSoft has a web page at <http://www.hisoft.co.uk/>, but there
943 is no listing for the Whippet in their Amiga section.
946 tristate "PCMCIA NE2000 support"
947 depends on AMIGA_PCMCIA
949 If you have a PCMCIA NE2000 compatible adapter, say Y. Otherwise,
952 To compile this driver as a module, choose M here: the
953 module will be called apne.
955 config SERIAL_CONSOLE
956 bool "Support for serial port console"
957 depends on APUS && (AMIGA_BUILTIN_SERIAL=y || GVPIOEXT=y || MULTIFACE_III_TTY=y)
960 bool "Use power LED as a heartbeat"
963 Use the power-on LED on your machine as a load meter. The exact
964 behavior is platform-dependent, but normally the flash frequency is
965 a hyperbolic function of the 5-minute load average.
968 bool "/proc/hardware support"
971 source "drivers/zorro/Kconfig"
978 bool "Support for ISA-bus hardware"
979 depends on PPC_PREP || PPC_CHRP
981 Find out whether you have ISA slots on your motherboard. ISA is the
982 name of a bus system, i.e. the way the CPU talks to the other stuff
983 inside your box. If you have an Apple machine, say N here; if you
984 have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If
985 you have an embedded board, consult your board documentation.
987 config GENERIC_ISA_DMA
989 depends on POWER3 || POWER4 || 6xx && !8260
995 The Extended Industry Standard Architecture (EISA) bus is a bus
996 architecture used on some older intel-based PCs.
1001 # Yes MCA RS/6000s exist but Linux-PPC does not currently support any
1006 bool "PCI support" if 40x || 8260 || 85xx
1007 default y if !40x && !8260 && !8xx && !APUS && !85xx
1008 default PCI_PERMEDIA if !4xx && !8260 && !8xx && APUS
1009 default PCI_QSPAN if !4xx && !8260 && 8xx
1011 Find out whether your system includes a PCI bus. PCI is the name of
1012 a bus system, i.e. the way the CPU talks to the other stuff inside
1013 your box. If you say Y here, the kernel will include drivers and
1014 infrastructure code to support PCI bus devices.
1022 depends on !4xx && !8260 && 8xx
1024 Say Y here if you have a system based on a Motorola 8xx-series
1025 embedded processor with a QSPAN PCI interface, otherwise say N.
1028 bool "PCI for Permedia2"
1029 depends on !4xx && !8xx && APUS
1031 source "drivers/pci/Kconfig"
1033 source "drivers/pcmcia/Kconfig"
1037 menu "Advanced setup"
1039 config ADVANCED_OPTIONS
1040 bool "Prompt for advanced kernel configuration options"
1042 This option will enable prompting for a variety of advanced kernel
1043 configuration options. These options can cause the kernel to not
1044 work if they are set incorrectly, but can be used to optimize certain
1045 aspects of kernel memory management.
1047 Unless you know what you are doing, say N here.
1049 comment "Default settings for advanced configuration options are used"
1050 depends on !ADVANCED_OPTIONS
1052 config HIGHMEM_START_BOOL
1053 bool "Set high memory pool address"
1054 depends on ADVANCED_OPTIONS && HIGHMEM
1056 This option allows you to set the base address of the kernel virtual
1057 area used to map high memory pages. This can be useful in
1058 optimizing the layout of kernel virtual memory.
1060 Say N here unless you know what you are doing.
1062 config HIGHMEM_START
1063 hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL
1064 default "0xfe000000"
1066 config LOWMEM_SIZE_BOOL
1067 bool "Set maximum low memory"
1068 depends on ADVANCED_OPTIONS
1070 This option allows you to set the maximum amount of memory which
1071 will be used as "low memory", that is, memory which the kernel can
1072 access directly, without having to set up a kernel virtual mapping.
1073 This can be useful in optimizing the layout of kernel virtual
1076 Say N here unless you know what you are doing.
1079 hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
1080 default "0x30000000"
1082 config KERNEL_START_BOOL
1083 bool "Set custom kernel base address"
1084 depends on ADVANCED_OPTIONS
1086 This option allows you to set the kernel virtual address at which
1087 the kernel will map low memory (the kernel image will be linked at
1088 this address). This can be useful in optimizing the virtual memory
1089 layout of the system.
1091 Say N here unless you know what you are doing.
1094 hex "Virtual address of kernel base" if KERNEL_START_BOOL
1095 default "0xc0000000"
1097 config TASK_SIZE_BOOL
1098 bool "Set custom user task size"
1099 depends on ADVANCED_OPTIONS
1101 This option allows you to set the amount of virtual address space
1102 allocated to user tasks. This can be useful in optimizing the
1103 virtual memory layout of the system.
1105 Say N here unless you know what you are doing.
1108 hex "Size of user task space" if TASK_SIZE_BOOL
1109 default "0x80000000"
1111 config CONSISTENT_START_BOOL
1112 bool "Set custom consistent memory pool address"
1113 depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
1115 This option allows you to set the base virtual address
1116 of the the consistent memory pool. This pool of virtual
1117 memory is used to make consistent memory allocations.
1119 config CONSISTENT_START
1120 hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL
1121 default "0xff100000" if NOT_COHERENT_CACHE
1123 config CONSISTENT_SIZE_BOOL
1124 bool "Set custom consistent memory pool size"
1125 depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
1127 This option allows you to set the size of the the
1128 consistent memory pool. This pool of virtual memory
1129 is used to make consistent memory allocations.
1131 config CONSISTENT_SIZE
1132 hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
1133 default "0x00200000" if NOT_COHERENT_CACHE
1135 config BOOT_LOAD_BOOL
1136 bool "Set the boot link/load address"
1137 depends on ADVANCED_OPTIONS && !PPC_MULTIPLATFORM
1139 This option allows you to set the initial load address of the zImage
1140 or zImage.initrd file. This can be useful if you are on a board
1141 which has a small amount of memory.
1143 Say N here unless you know what you are doing.
1146 hex "Link/load address for booting" if BOOT_LOAD_BOOL
1147 default "0x00400000" if 40x || 8xx || 8260
1148 default "0x01000000" if 44x
1149 default "0x00800000"
1152 bool "Pinned Kernel TLBs (860 ONLY)"
1153 depends on ADVANCED_OPTIONS && 8xx
1156 source "drivers/Kconfig"
1160 source "arch/ppc/8xx_io/Kconfig"
1162 source "arch/ppc/8260_io/Kconfig"
1165 menu "IBM 40x options"
1169 bool "SICC Serial port"
1172 config UART1_DFLT_CONSOLE
1174 depends on SERIAL_SICC && UART0_TTYS1
1177 config SERIAL_SICC_CONSOLE
1179 depends on SERIAL_SICC && UART0_TTYS1
1184 source "lib/Kconfig"
1187 menu "Kernel hacking"
1190 bool "Kernel debugging"
1193 bool "Debug memory allocations"
1194 depends on DEBUG_KERNEL
1197 bool "Magic SysRq key"
1198 depends on DEBUG_KERNEL
1200 If you say Y here, you will have some control over the system even
1201 if the system crashes for example during kernel debugging (e.g., you
1202 will be able to flush the buffer cache to disk, reboot the system
1203 immediately or dump some status information). This is accomplished
1204 by pressing various keys while holding SysRq (Alt+PrintScreen). It
1205 also works on a serial console (on PC hardware at least), if you
1206 send a BREAK and then within 5 seconds a command keypress. The
1207 keys are documented in <file:Documentation/sysrq.txt>. Don't say Y
1208 unless you really know what this hack does.
1210 config DEBUG_SPINLOCK
1211 bool "Spinlock debugging"
1212 depends on DEBUG_KERNEL
1214 Say Y here and to CONFIG_SMP to include code to check for missing
1215 spinlock initialization and some other common spinlock errors.
1217 config DEBUG_HIGHMEM
1218 bool "Highmem debugging"
1219 depends on DEBUG_KERNEL && HIGHMEM
1221 This options enables additional error checking for high memory
1222 systems. Disable for production systems.
1224 config DEBUG_SPINLOCK_SLEEP
1225 bool "Sleep-inside-spinlock checking"
1226 depends on DEBUG_KERNEL
1228 If you say Y here, various routines which may sleep will become very
1229 noisy if they are called with a spinlock held.
1232 bool "Include kgdb kernel debugger"
1233 depends on DEBUG_KERNEL
1236 Include in-kernel hooks for kgdb, the Linux kernel source level
1237 debugger. See <http://kgdb.sourceforge.net/> for more information.
1238 Unless you are intending to debug the kernel, say N here.
1241 prompt "Serial Port"
1260 bool "Enable serial console thru kgdb port"
1261 depends on KGDB && 8xx || 8260
1263 If you enable this, all serial console messages will be sent
1268 bool "Include xmon kernel debugger"
1269 depends on DEBUG_KERNEL
1271 Include in-kernel hooks for the xmon kernel monitor/debugger.
1272 Unless you are intending to debug the kernel, say N here.
1275 bool "Include BDI-2000 user context switcher"
1276 depends on DEBUG_KERNEL
1278 Include in-kernel support for the Abatron BDI2000 debugger.
1279 Unless you are intending to debug the kernel with one of these
1280 machines, say N here.
1283 bool "Compile the kernel with debug info"
1284 depends on DEBUG_KERNEL
1286 If you say Y here the resulting kernel image will include
1287 debugging info resulting in a larger kernel image.
1288 Say Y here only if you plan to use some sort of debugger to
1290 If you don't debug the kernel, you can say N.
1293 bool "Support for early boot text console (BootX or OpenFirmware only)"
1296 Say Y here to see progress messages from the boot firmware in text
1297 mode. Requires either BootX or Open Firmware.
1299 config SERIAL_TEXT_DEBUG
1300 bool "Support for early boot texts over serial port"
1301 depends on 4xx || GT64260 || LOPEC || PPLUS || PRPMC800 || PPC_GEN550
1305 depends on IBM_OCP || FSL_OCP
1310 source "kernel/vserver/Kconfig"
1312 source "security/Kconfig"
1314 source "crypto/Kconfig"