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)"
83 bool "AltiVec Support"
84 depends on 6xx || POWER4
87 This option enables kernel support for the Altivec extensions to the
88 PowerPC processor. The kernel currently supports saving and restoring
89 altivec registers, and turning on the 'altivec enable' bit so user
90 processes can execute altivec instructions.
92 This option is only usefully if you have a processor that supports
93 altivec (G4, otherwise known as 74xx series), but does not have
94 any affect on a non-altivec cpu (it does, however add code to the
97 If in doubt, say Y here.
100 bool "Thermal Management Support"
101 depends on 6xx && !8260
103 G3 and G4 processors have an on-chip temperature sensor called the
104 'Thermal Assist Unit (TAU)', which, in theory, can measure the on-die
105 temperature within 2-4 degrees Celsius. This option shows the current
106 on-die temperature in /proc/cpuinfo if the cpu supports it.
108 Unfortunately, on some chip revisions, this sensor is very inaccurate
109 and in some cases, does not work at all, so don't assume the cpu
110 temp is actually what /proc/cpuinfo says it is.
113 bool "Interrupt driven TAU driver (DANGEROUS)"
116 The TAU supports an interrupt driven mode which causes an interrupt
117 whenever the temperature goes out of range. This is the fastest way
118 to get notified the temp has exceeded a range. With this option off,
119 a timer is used to re-check the temperature periodically.
121 However, on some cpus it appears that the TAU interrupt hardware
122 is buggy and can cause a situation which would lead unexplained hard
125 Unless you are extending the TAU driver, or enjoy kernel/hardware
126 debugging, leave this option off.
129 bool "Average high and low temp"
132 The TAU hardware can compare the temperature to an upper and lower
133 bound. The default behavior is to show both the upper and lower
134 bound in /proc/cpuinfo. If the range is large, the temperature is
135 either changing a lot, or the TAU hardware is broken (likely on some
136 G4's). If the range is small (around 4 degrees), the temperature is
137 relatively stable. If you say Y here, a single temperature value,
138 halfway between the upper and lower bounds, will be reported in
141 If in doubt, say N here.
143 config MATH_EMULATION
144 bool "Math emulation"
145 depends on 4xx || 8xx
147 Some PowerPC chips designed for embedded applications do not have
148 a floating-point unit and therefore do not implement the
149 floating-point instructions in the PowerPC instruction set. If you
150 say Y here, the kernel will include code to emulate a floating-point
151 unit, which will allow programs that use floating-point
154 If you have an Apple machine or an IBM RS/6000 or pSeries machine,
155 or any machine with a 6xx, 7xx or 7xxx series processor, say N
156 here. Saying Y here will not hurt performance (on any machine) but
157 will increase the size of the kernel.
160 bool "CPU Frequency scaling"
162 Clock scaling allows you to change the clock speed of CPUs on the
163 fly. This is a nice method to save battery power on notebooks,
164 because the lower the clock speed, the less power the CPU consumes.
166 For more information, take a look at linux/Documentation/cpu-freq or
167 at <http://www.brodo.de/cpufreq/>
171 source "drivers/cpufreq/Kconfig"
174 bool "Support for Apple PowerBooks"
175 depends on CPU_FREQ && ADB_PMU
177 This adds support for frequency switching on Apple PowerBooks,
178 this currently includes some models of iBook & Titanium
181 config CPU_FREQ_TABLE
183 depends on CPU_FREQ_PMAC
186 config PPC601_SYNC_FIX
187 bool "Workarounds for PPC601 bugs"
188 depends on 6xx && (PPC_PREP || PPC_PMAC)
190 Some versions of the PPC601 (the first PowerPC chip) have bugs which
191 mean that extra synchronization instructions are required near
192 certain instructions, typically those that make major changes to the
193 CPU state. These extra instructions reduce performance slightly.
194 If you say N here, these extra instructions will not be included,
195 resulting in a kernel which will run faster but may not run at all
196 on some systems with the PPC601 chip.
198 If in doubt, say Y here.
200 source arch/ppc/platforms/4xx/Kconfig
204 depends on POWER3 || POWER4
209 depends on 6xx || POWER3 || POWER4
212 config NOT_COHERENT_CACHE
214 depends on 4xx || 8xx
219 menu "Platform options"
222 prompt "8xx Machine Type"
229 Single-board computers based around the PowerPC MPC8xx chips and
230 intended for embedded applications. The following types are
234 Embedded Planet RPX Lite. PC104 form-factor SBC based on the MPC823.
237 Embedded Planet RPX Classic Low-fat. Credit-card-size SBC based on
241 Bright Star Engineering ip-Engine.
247 MPC8xx based family of mini modules, half credit card size,
248 up to 64 MB of RAM, 8 MB Flash, (Fast) Ethernet, 2 x serial ports,
249 2 x CAN bus interface, ...
250 Manufacturer: TQ Components, www.tq-group.de
251 Date of Release: October (?) 1999
252 End of Life: not yet :-)
254 - module: <http://www.denx.de/PDF/TQM8xxLHWM201.pdf>
255 - starter kit: <http://www.denx.de/PDF/STK8xxLHWM201.pdf>
256 - images: <http://www.denx.de/embedded-ppc-en.html>
259 FingerPrint Sensor System (based on TQM850L)
260 Manufacturer: IKENDI AG, <http://www.ikendi.com/>
261 Date of Release: November 1999
262 End of life: end 2000 ?
266 MPC823 based board used in the "Tele Server" product
267 Manufacturer: Speech Design, <http://www.speech-design.de/>
268 Date of Release: Mid 2000 (?)
270 URL: <http://www.speech-design.de/>
271 select "English", then "Teleteam Solutions", then "TeleServer"
274 MPC860 based board used in the "Integrated Voice Mail System",
275 Small Version (8 voice channels)
276 Manufacturer: Speech Design, <http://www.speech-design.de/>
277 Date of Release: December 2000 (?)
279 URL: <http://www.speech-design.de/>
282 MPC860 based board used in the "Integrated Voice Mail System",
283 Large Version (24 voice channels)
284 Manufacturer: Speech Design, <http://www.speech-design.de/>
285 Date of Release: March 2001 (?)
287 URL: <http://www.speech-design.de/>
290 Service Module (based on TQM850L)
291 Manufacturer: Dependable Computer Systems, <http://www.decomsys.com/>
292 Date of Release: end 2000 (?)
293 End of life: mid 2001 (?)
294 URL: <http://www.tz-mikroelektronik.de/ServiceModule/index.html>
297 Hermes-Pro ISDN/LAN router with integrated 8 x hub
298 Manufacturer: Multidata Gesellschaft für Datentechnik und Informatik
299 <http://www.multidata.de/>
300 Date of Release: 2000 (?)
302 URL: <http://www.multidata.de/english/products/hpro.htm>
305 VMEBus IP (Industry Pack) carrier board with MPC860
306 Manufacturer: MicroSys GmbH, <http://www.microsys.de/>
309 URL: <http://www.microsys.de/html/ip860.html>
312 PCU = Peripheral Controller Unit, Extended
313 Manufacturer: Siemens AG, ICN (Information and Communication Networks)
314 <http://www.siemens.de/page/1,3771,224315-1-999_2_226207-0,00.html>
315 Date of Release: April 2001
316 End of life: August 2001
322 The RPX-Classic is a single-board computer based on the Motorola
323 MPC860. It features 16MB of DRAM and a variable amount of flash,
324 I2C EEPROM, thermal monitoring, a PCMCIA slot, a DIP switch and two
325 LEDs. Variants with Ethernet ports exist. Say Y here to support it
331 Say Y here to support the Bright Star Engineering ipEngine SBC.
332 This is a credit-card-sized device featuring a MPC823 processor,
333 26MB DRAM, 4MB flash, Ethernet, a 16K-gate FPGA, USB, an LCD/video
334 controller, and two RS232 ports.
342 Say Y here to support the TQM823L, one of an MPC8xx-based family of
343 mini SBCs (half credit-card size) from TQ Components first released
344 in late 1999. Technical references are at
345 <http://www.denx.de/PDF/TQM8xxLHWM201.pdf>, and
346 <http://www.denx.de/PDF/STK8xxLHWM201.pdf>, and an image at
347 <http://www.denx.de/embedded-ppc-en.html>.
352 Say Y here to support the TQM850L, one of an MPC8xx-based family of
353 mini SBCs (half credit-card size) from TQ Components first released
354 in late 1999. Technical references are at
355 <http://www.denx.de/PDF/TQM8xxLHWM201.pdf>, and
356 <http://www.denx.de/PDF/STK8xxLHWM201.pdf>, and an image at
357 <http://www.denx.de/embedded-ppc-en.html>.
362 Say Y here to support the TQM855L, one of an MPC8xx-based family of
363 mini SBCs (half credit-card size) from TQ Components first released
364 in late 1999. Technical references are at
365 <http://www.denx.de/PDF/TQM8xxLHWM201.pdf>, and
366 <http://www.denx.de/PDF/STK8xxLHWM201.pdf>, and an image at
367 <http://www.denx.de/embedded-ppc-en.html>.
372 Say Y here to support the TQM860L, one of an MPC8xx-based family of
373 mini SBCs (half credit-card size) from TQ Components first released
374 in late 1999. Technical references are at
375 <http://www.denx.de/PDF/TQM8xxLHWM201.pdf>, and
376 <http://www.denx.de/PDF/STK8xxLHWM201.pdf>, and an image at
377 <http://www.denx.de/embedded-ppc-en.html>.
385 Say Y here to support the Speech Design 823 Tele-Server from Speech
386 Design, released in 2000. The manufacturer's website is at
387 <http://www.speech-design.de/>.
392 Say Y here to support the Integrated Voice-Mail Small 8-channel SBC
393 from Speech Design, released March 2001. The manufacturer's website
394 is at <http://www.speech-design.de/>.
399 Say Y here to support the Integrated Voice-Mail Large 24-channel SBC
400 from Speech Design, released March 2001. The manufacturer's website
401 is at <http://www.speech-design.de/>.
406 Say Y here to support the Service Module 850 from Dependable
407 Computer Systems, an SBC based on the TQM850L module by TQ
408 Components. This board is no longer in production. The
409 manufacturer's website is at <http://www.decomsys.com/>.
432 MBX is a line of Motorola single-board computer based around the
433 MPC821 and MPC860 processors, and intended for embedded-controller
434 applications. Say Y here to support these boards directly.
439 The Wincept 100/110 is a Motorola single-board computer based on the
440 MPC821 PowerPC, introduced in 1998 and designed to be used in
441 thin-client machines. Say Y to support it directly.
446 prompt "Machine Type"
447 depends on 6xx || POWER3 || POWER4
448 default PPC_MULTIPLATFORM
450 Linux currently supports several different kinds of PowerPC-based
451 machines: Apple Power Macintoshes and clones (such as the Motorola
452 Starmax series), PReP (PowerPC Reference Platform) machines (such
453 as the Motorola PowerStacks, Motorola cPCI/VME embedded systems,
454 and some IBM RS/6000 systems), CHRP (Common Hardware Reference
455 Platform) machines (including all of the recent IBM RS/6000 and
456 pSeries machines), and several embedded PowerPC systems containing
457 4xx, 6xx, 7xx, 8xx, 74xx, and 82xx processors. Currently, the
458 default option is to build a kernel which works on the first three.
460 Select CHRP/PowerMac/PReP if configuring for an IBM RS/6000 or
461 pSeries machine, a Power Macintosh (including iMacs, iBooks and
462 Powerbooks), or a PReP machine.
464 Select Gemini if configuring for a Synergy Microsystems' Gemini
465 series Single Board Computer. More information is available at:
466 <http://www.synergymicro.com/PressRel/97_10_15.html>.
468 Select APUS if configuring for a PowerUP Amiga. More information is
469 available at: <http://linux-apus.sourceforge.net/>.
471 config PPC_MULTIPLATFORM
472 bool "CHRP/PowerMac/PReP"
477 Select APUS if configuring for a PowerUP Amiga.
478 More information is available at:
479 <http://linux-apus.sourceforge.net/>.
485 bool "Force-PowerCore"
488 bool "Force-PowerPMC250"
491 bool "Galileo-EV-64260-BP"
497 bool "Motorola-LoPEC"
500 bool "Motorola-MCPN765"
503 bool "Motorola-MVME5100"
506 bool "Motorola-PowerPlus"
509 bool "Motorola-PrPMC750"
512 bool "Motorola-PrPMC800"
515 bool "Motorola-Sandpoint"
517 Select SANDPOINT if configuring for a Motorola Sandpoint X3
521 bool "SBS-Adirondack"
530 bool "Synergy-Gemini"
532 Select Gemini if configuring for a Synergy Microsystems' Gemini
533 series Single Board Computer. More information is available at:
534 <http://www.synergymicro.com/PressRel/97_10_15.html>.
539 The EST8260 is a single-board computer manufactured by Wind River
540 Systems, Inc. (formerly Embedded Support Tools Corp.) and based on
541 the MPC8260. Wind River Systems has a website at
542 <http://www.windriver.com/>, but the EST8260 cannot be found on it
543 and has probably been discontinued or rebadged.
554 MPC8260 based module, little larger than credit card,
555 up to 128 MB global + 64 MB local RAM, 32 MB Flash,
556 32 kB EEPROM, 256 kB L@ Cache, 10baseT + 100baseT Ethernet,
557 2 x serial ports, ...
558 Manufacturer: TQ Components, www.tq-group.de
559 Date of Release: June 2001
560 End of Life: not yet :-)
561 URL: <http://www.denx.de/PDF/TQM82xx_SPEC_Rev005.pdf>
567 depends on 8xx && (TQM823L || TQM850L || FPS850L || TQM855L || TQM860L || SM850)
572 depends on 8xx || 8260
576 bool "MPC8260 CPM Support" if WILLOW
578 default y if TQM8260 || RPXSUPER || EST8260 || SBS8260
580 The MPC8260 CPM (Communications Processor Module) is a typical
581 embedded CPU made by Motorola. Selecting this option means that
582 you wish to build a kernel for a machine with specifically an 8260
587 depends on PPC_MULTIPLATFORM
592 depends on PPC_MULTIPLATFORM
597 depends on PPC_PMAC && POWER4
602 depends on PPC_MULTIPLATFORM
607 depends on PPC_PMAC || PPC_CHRP
612 depends on SANDPOINT || MCPN765 || SPRUCE || PPLUS || PCORE || PRPMC750 || K2 || PRPMC800
617 depends on 6xx && (PCORE || POWERPMC250)
625 config NONMONARCH_SUPPORT
626 bool "Enable Non-Monarch Support"
634 config EPIC_SERIAL_MODE
636 depends on 6xx && (LOPEC || SANDPOINT)
641 depends on PCORE || POWERPMC250 || LOPEC || SANDPOINT
644 config MPC10X_STORE_GATHERING
645 bool "Enable MPC10x store gathering"
646 depends on MPC10X_BRIDGE
648 config CPC710_DATA_GATHERING
649 bool "Enable CPC710 data gathering"
652 config HARRIER_STORE_GATHERING
653 bool "Enable Harrier store gathering"
656 config MVME5100_IPMC761_PRESENT
657 bool "MVME5100 configured with an IPMC761"
660 config SPRUCE_BAUD_33M
661 bool "Spruce baud clock support"
665 bool "PC PS/2 style Keyboard"
666 depends on 4xx || 8260
668 config SERIAL_CONSOLE
670 depends on 8xx || 8260
673 config SERIAL_CONSOLE_BAUD
679 bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC
680 default y if PPC_PREP
683 bool "Symmetric multi-processing support"
685 This enables support for systems with more than one CPU. If you have
686 a system with only one CPU, say N. If you have a system with more
687 than one CPU, say Y. Note that the kernel does not currently
688 support SMP machines with 603/603e/603ev or PPC750 ("G3") processors
689 since they have inadequate hardware support for multiprocessor
692 If you say N here, the kernel will run on single and multiprocessor
693 machines, but will use only one CPU of a multiprocessor machine. If
694 you say Y here, the kernel will run on single-processor machines.
695 On a single-processor machine, the kernel will run faster if you say
698 If you don't know what to do here, say N.
701 bool "Distribute interrupts on all CPUs by default"
704 This option gives the kernel permission to distribute IRQs across
705 multiple CPUs. Saying N here will route all IRQs to the first
706 CPU. Generally saying Y is safe, although some problems have been
707 reported with SMP Power Macintoshes with this option enabled.
710 int "Maximum number of CPUs (2-32)"
716 bool "Preemptible Kernel"
718 This option reduces the latency of the kernel when reacting to
719 real-time or interactive events by allowing a low priority process to
720 be preempted even if it is in kernel mode executing a system call.
722 Say Y here if you are building a kernel for a desktop, embedded
723 or real-time system. Say N if you are unsure.
726 bool "High memory support"
732 source "fs/Kconfig.binfmt"
734 config PROC_DEVICETREE
735 bool "Support for Open Firmware device tree in /proc"
736 depends on PPC_OF && PROC_FS
738 This option adds a device-tree directory under /proc which contains
739 an image of the device tree that the kernel copies from Open
740 Firmware. If unsure, say Y here.
743 bool "Support for RTAS (RunTime Abstraction Services) in /proc"
744 depends on PPC_OF && PROC_FS
746 When you use this option, you will be able to use RTAS from
749 RTAS stands for RunTime Abstraction Services and should
750 provide a portable way to access and set system information. This is
751 commonly used on RS/6000 (pSeries) computers.
753 You can access RTAS via the special proc file system entry rtas.
754 Don't confuse this rtas entry with the one in /proc/device-tree/rtas
757 If you don't know if you can use RTAS look into
758 /proc/device-tree/rtas. If there are some entries, it is very likely
759 that you will be able to use RTAS.
761 You can do cool things with rtas. To print out information about
762 various sensors in the system, just do a
764 $ cat /proc/rtas/sensors
766 or if you power off your machine at night but want it running when
767 you enter your office at 7:45 am, do a
769 # date -d 'tomorrow 7:30' +%s > /proc/rtas/poweron
776 bool "Support for PReP Residual Data"
779 Some PReP systems have residual data passed to the kernel by the
780 firmware. This allows detection of memory size, devices present and
781 other useful pieces of information. Sometimes this information is
782 not present or incorrect.
784 Unless you expect to boot on a PReP system, there is no need to
787 config PROC_PREPRESIDUAL
788 bool "Support for reading of PReP Residual Data in /proc"
789 depends on PREP_RESIDUAL && PROC_FS
791 Enabling this option will create a /proc/residual file which allows
792 you to get at the residual data on PReP systems. You will need a tool
793 (lsresidual) to parse it. If you aren't on a PReP system, you don't
797 bool "Default bootloader kernel arguments"
800 string "Initial kernel command string"
801 depends on CMDLINE_BOOL
802 default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
804 On some platforms, there is currently no way for the boot loader to
805 pass arguments to the kernel. For these platforms, you can supply
806 some command-line options at build time by entering them here. In
807 most cases you will need to specify the root device here.
814 This option enables support for the Amiga series of computers.
821 This enables support for the Zorro bus in the Amiga. If you have
822 expansion cards in your Amiga that conform to the Amiga
823 AutoConfig(tm) specification, say Y, otherwise N. Note that even
824 expansion cards that do not fit in the Zorro slots but fit in e.g.
825 the CPU slot may fall in this category, so you have to say Y to let
828 config ABSTRACT_CONSOLE
833 config APUS_FAST_EXCEPT
839 bool "Amiga 1200/600 PCMCIA support"
840 depends on APUS && EXPERIMENTAL
842 Include support in the kernel for pcmcia on Amiga 1200 and Amiga
843 600. If you intend to use pcmcia cards say Y; otherwise say N.
845 config AMIGA_BUILTIN_SERIAL
846 tristate "Amiga builtin serial support"
849 If you want to use your Amiga's built-in serial port in Linux,
852 To compile this driver as a module, choose M here.
855 tristate "GVP IO-Extender support"
858 If you want to use a GVP IO-Extender serial card in Linux, say Y.
862 tristate "GVP IO-Extender parallel printer support"
865 Say Y to enable driving a printer from the parallel port on your
866 GVP IO-Extender card, N otherwise.
869 tristate "GVP IO-Extender PLIP support"
872 Say Y to enable doing IP over the parallel port on your GVP
873 IO-Extender card, N otherwise.
875 config MULTIFACE_III_TTY
876 tristate "Multiface Card III serial support"
879 If you want to use a Multiface III card's serial port in Linux,
882 To compile this driver as a module, choose M here.
885 tristate "Commodore A2232 serial support (EXPERIMENTAL)"
886 depends on EXPERIMENTAL && APUS
888 This option supports the 2232 7-port serial card shipped with the
889 Amiga 2000 and other Zorro-bus machines, dating from 1989. At
890 a max of 19,200 bps, the ports are served by a 6551 ACIA UART chip
891 each, plus a 8520 CIA, and a master 6502 CPU and buffer as well. The
892 ports were connected with 8 pin DIN connectors on the card bracket,
893 for which 8 pin to DB25 adapters were supplied. The card also had
894 jumpers internally to toggle various pinning configurations.
896 This driver can be built as a module; but then "generic_serial"
897 will also be built as a module. This has to be loaded before
898 "ser_a2232". If you want to do this, answer M here.
900 config WHIPPET_SERIAL
901 tristate "Hisoft Whippet PCMCIA serial support"
902 depends on AMIGA_PCMCIA
904 HiSoft has a web page at <http://www.hisoft.co.uk/>, but there
905 is no listing for the Whippet in their Amiga section.
908 tristate "PCMCIA NE2000 support"
909 depends on AMIGA_PCMCIA
911 If you have a PCMCIA NE2000 compatible adapter, say Y. Otherwise,
914 To compile this driver as a module, choose M here: the
915 module will be called apne.
917 config SERIAL_CONSOLE
918 bool "Support for serial port console"
919 depends on APUS && (AMIGA_BUILTIN_SERIAL=y || GVPIOEXT=y || MULTIFACE_III_TTY=y)
922 bool "Use power LED as a heartbeat"
925 Use the power-on LED on your machine as a load meter. The exact
926 behavior is platform-dependent, but normally the flash frequency is
927 a hyperbolic function of the 5-minute load average.
930 bool "/proc/hardware support"
933 source "drivers/zorro/Kconfig"
940 bool "Support for ISA-bus hardware"
941 depends on PPC_PREP || PPC_CHRP
943 Find out whether you have ISA slots on your motherboard. ISA is the
944 name of a bus system, i.e. the way the CPU talks to the other stuff
945 inside your box. If you have an Apple machine, say N here; if you
946 have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If
947 you have an embedded board, consult your board documentation.
949 config GENERIC_ISA_DMA
951 depends on POWER3 || POWER4 || 6xx && !8260
957 The Extended Industry Standard Architecture (EISA) bus is a bus
958 architecture used on some older intel-based PCs.
963 # Yes MCA RS/6000s exist but Linux-PPC does not currently support any
968 bool "PCI support" if 40x || 8260
969 default y if !40x && !8260 && !8xx && !APUS
970 default PCI_PERMEDIA if !4xx && !8260 && !8xx && APUS
971 default PCI_QSPAN if !4xx && !8260 && 8xx
973 Find out whether your system includes a PCI bus. PCI is the name of
974 a bus system, i.e. the way the CPU talks to the other stuff inside
975 your box. If you say Y here, the kernel will include drivers and
976 infrastructure code to support PCI bus devices.
984 depends on !4xx && !8260 && 8xx
986 Say Y here if you have a system based on a Motorola 8xx-series
987 embedded processor with a QSPAN PCI interface, otherwise say N.
990 bool "PCI for Permedia2"
991 depends on !4xx && !8xx && APUS
993 source "drivers/pci/Kconfig"
995 source "drivers/pcmcia/Kconfig"
999 menu "Advanced setup"
1001 config ADVANCED_OPTIONS
1002 bool "Prompt for advanced kernel configuration options"
1004 This option will enable prompting for a variety of advanced kernel
1005 configuration options. These options can cause the kernel to not
1006 work if they are set incorrectly, but can be used to optimize certain
1007 aspects of kernel memory management.
1009 Unless you know what you are doing, say N here.
1011 comment "Default settings for advanced configuration options are used"
1012 depends on !ADVANCED_OPTIONS
1014 config HIGHMEM_START_BOOL
1015 bool "Set high memory pool address"
1016 depends on ADVANCED_OPTIONS && HIGHMEM
1018 This option allows you to set the base address of the kernel virtual
1019 area used to map high memory pages. This can be useful in
1020 optimizing the layout of kernel virtual memory.
1022 Say N here unless you know what you are doing.
1024 config HIGHMEM_START
1025 hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL
1026 default "0xfe000000"
1028 config LOWMEM_SIZE_BOOL
1029 bool "Set maximum low memory"
1030 depends on ADVANCED_OPTIONS
1032 This option allows you to set the maximum amount of memory which
1033 will be used as "low memory", that is, memory which the kernel can
1034 access directly, without having to set up a kernel virtual mapping.
1035 This can be useful in optimizing the layout of kernel virtual
1038 Say N here unless you know what you are doing.
1041 hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
1042 default "0x30000000"
1044 config KERNEL_START_BOOL
1045 bool "Set custom kernel base address"
1046 depends on ADVANCED_OPTIONS
1048 This option allows you to set the kernel virtual address at which
1049 the kernel will map low memory (the kernel image will be linked at
1050 this address). This can be useful in optimizing the virtual memory
1051 layout of the system.
1053 Say N here unless you know what you are doing.
1056 hex "Virtual address of kernel base" if KERNEL_START_BOOL
1057 default "0xc0000000"
1059 config TASK_SIZE_BOOL
1060 bool "Set custom user task size"
1061 depends on ADVANCED_OPTIONS
1063 This option allows you to set the amount of virtual address space
1064 allocated to user tasks. This can be useful in optimizing the
1065 virtual memory layout of the system.
1067 Say N here unless you know what you are doing.
1070 hex "Size of user task space" if TASK_SIZE_BOOL
1071 default "0x80000000"
1073 config BOOT_LOAD_BOOL
1074 bool "Set the boot link/load address"
1075 depends on ADVANCED_OPTIONS && !PPC_MULTIPLATFORM
1077 This option allows you to set the initial load address of the zImage
1078 or zImage.initrd file. This can be useful if you are on a board
1079 which has a small amount of memory.
1081 Say N here unless you know what you are doing.
1084 hex "Link/load address for booting" if BOOT_LOAD_BOOL
1085 default "0x00400000" if 40x || 8xx || 8260
1086 default "0x01000000" if 44x
1087 default "0x00800000"
1090 bool "Pinned Kernel TLBs (860 ONLY)"
1091 depends on ADVANCED_OPTIONS && 8xx
1094 source "drivers/Kconfig"
1098 source "arch/ppc/8xx_io/Kconfig"
1100 source "arch/ppc/8260_io/Kconfig"
1103 menu "IBM 40x options"
1107 bool "SICC Serial port"
1110 config UART1_DFLT_CONSOLE
1112 depends on SERIAL_SICC && UART0_TTYS1
1115 config SERIAL_SICC_CONSOLE
1117 depends on SERIAL_SICC && UART0_TTYS1
1122 source "lib/Kconfig"
1125 menu "Kernel hacking"
1128 bool "Kernel debugging"
1131 bool "Debug memory allocations"
1132 depends on DEBUG_KERNEL
1135 bool "Magic SysRq key"
1136 depends on DEBUG_KERNEL
1138 If you say Y here, you will have some control over the system even
1139 if the system crashes for example during kernel debugging (e.g., you
1140 will be able to flush the buffer cache to disk, reboot the system
1141 immediately or dump some status information). This is accomplished
1142 by pressing various keys while holding SysRq (Alt+PrintScreen). It
1143 also works on a serial console (on PC hardware at least), if you
1144 send a BREAK and then within 5 seconds a command keypress. The
1145 keys are documented in <file:Documentation/sysrq.txt>. Don't say Y
1146 unless you really know what this hack does.
1148 config DEBUG_SPINLOCK
1149 bool "Spinlock debugging"
1150 depends on DEBUG_KERNEL
1152 Say Y here and to CONFIG_SMP to include code to check for missing
1153 spinlock initialization and some other common spinlock errors.
1155 config DEBUG_HIGHMEM
1156 bool "Highmem debugging"
1157 depends on DEBUG_KERNEL && HIGHMEM
1159 This options enables additional error checking for high memory
1160 systems. Disable for production systems.
1162 config DEBUG_SPINLOCK_SLEEP
1163 bool "Sleep-inside-spinlock checking"
1164 depends on DEBUG_KERNEL
1166 If you say Y here, various routines which may sleep will become very
1167 noisy if they are called with a spinlock held.
1170 bool "Include kgdb kernel debugger"
1171 depends on DEBUG_KERNEL
1174 Include in-kernel hooks for kgdb, the Linux kernel source level
1175 debugger. See <http://kgdb.sourceforge.net/> for more information.
1176 Unless you are intending to debug the kernel, say N here.
1179 prompt "Serial Port"
1198 bool "Enable serial console thru kgdb port"
1199 depends on KGDB && 8xx || 8260
1201 If you enable this, all serial console messages will be sent
1206 bool "Include xmon kernel debugger"
1207 depends on DEBUG_KERNEL
1209 Include in-kernel hooks for the xmon kernel monitor/debugger.
1210 Unless you are intending to debug the kernel, say N here.
1213 bool "Include BDI-2000 user context switcher"
1214 depends on DEBUG_KERNEL
1216 Include in-kernel support for the Abatron BDI2000 debugger.
1217 Unless you are intending to debug the kernel with one of these
1218 machines, say N here.
1221 bool "Compile the kernel with debug info"
1222 depends on DEBUG_KERNEL
1224 If you say Y here the resulting kernel image will include
1225 debugging info resulting in a larger kernel image.
1226 Say Y here only if you plan to use some sort of debugger to
1228 If you don't debug the kernel, you can say N.
1231 bool "Support for early boot text console (BootX or OpenFirmware only)"
1234 Say Y here to see progress messages from the boot firmware in text
1235 mode. Requires either BootX or Open Firmware.
1237 config SERIAL_TEXT_DEBUG
1238 bool "Support for early boot texts over serial port"
1239 depends on 4xx || GT64260 || LOPEC || PPLUS || PRPMC800 || PPC_GEN550
1248 source "kernel/vserver/Kconfig"
1250 source "security/Kconfig"
1252 source "crypto/Kconfig"