# For a description of the syntax of this configuration file,
# see Documentation/kbuild/kconfig-language.txt.
#
mainmenu "Linux/PowerPC Kernel Configuration"
config MMU
bool
default y
config UID16
bool
config RWSEM_GENERIC_SPINLOCK
bool
config RWSEM_XCHGADD_ALGORITHM
bool
default y
config HAVE_DEC_LOCK
bool
default y
config PPC
bool
default y
config PPC32
bool
default y
# All PPCs use generic nvram driver through ppc_md
config GENERIC_NVRAM
bool
default y
source "init/Kconfig"
menu "Processor"
choice
prompt "Processor Type"
default 6xx
config 6xx
bool "6xx/7xx/74xx/8260"
help
There are four types of PowerPC chips supported. The more common
types (601, 603, 604, 740, 750, 7400), the Motorola embedded
versions (821, 823, 850, 855, 860, 8260), the IBM embedded versions
(403 and 405) and the high end 64 bit Power processors (POWER 3,
POWER4, and IBM 970 also known as G5)
Unless you are building a kernel for one of the embedded processor
systems, 64 bit IBM RS/6000 or an Apple G5, choose 6xx.
Note that the kernel runs in 32-bit mode even on 64-bit chips.
Also note that because the 82xx family has a 603e core, specific
support for that chipset is asked later on.
config 40x
bool "40x"
config 44x
bool "44x"
config POWER3
bool "POWER3"
config POWER4
bool "POWER4 and 970 (G5)"
config 8xx
bool "8xx"
endchoice
config PTE_64BIT
bool
depends on 44x
default y
config ALTIVEC
bool "AltiVec Support"
depends on 6xx || POWER4
depends on !8260
---help---
This option enables kernel support for the Altivec extensions to the
PowerPC processor. The kernel currently supports saving and restoring
altivec registers, and turning on the 'altivec enable' bit so user
processes can execute altivec instructions.
This option is only usefully if you have a processor that supports
altivec (G4, otherwise known as 74xx series), but does not have
any affect on a non-altivec cpu (it does, however add code to the
kernel).
If in doubt, say Y here.
config TAU
bool "Thermal Management Support"
depends on 6xx && !8260
help
G3 and G4 processors have an on-chip temperature sensor called the
'Thermal Assist Unit (TAU)', which, in theory, can measure the on-die
temperature within 2-4 degrees Celsius. This option shows the current
on-die temperature in /proc/cpuinfo if the cpu supports it.
Unfortunately, on some chip revisions, this sensor is very inaccurate
and in some cases, does not work at all, so don't assume the cpu
temp is actually what /proc/cpuinfo says it is.
config TAU_INT
bool "Interrupt driven TAU driver (DANGEROUS)"
depends on TAU
---help---
The TAU supports an interrupt driven mode which causes an interrupt
whenever the temperature goes out of range. This is the fastest way
to get notified the temp has exceeded a range. With this option off,
a timer is used to re-check the temperature periodically.
However, on some cpus it appears that the TAU interrupt hardware
is buggy and can cause a situation which would lead unexplained hard
lockups.
Unless you are extending the TAU driver, or enjoy kernel/hardware
debugging, leave this option off.
config TAU_AVERAGE
bool "Average high and low temp"
depends on TAU
---help---
The TAU hardware can compare the temperature to an upper and lower
bound. The default behavior is to show both the upper and lower
bound in /proc/cpuinfo. If the range is large, the temperature is
either changing a lot, or the TAU hardware is broken (likely on some
G4's). If the range is small (around 4 degrees), the temperature is
relatively stable. If you say Y here, a single temperature value,
halfway between the upper and lower bounds, will be reported in
/proc/cpuinfo.
If in doubt, say N here.
config MATH_EMULATION
bool "Math emulation"
depends on 4xx || 8xx
---help---
Some PowerPC chips designed for embedded applications do not have
a floating-point unit and therefore do not implement the
floating-point instructions in the PowerPC instruction set. If you
say Y here, the kernel will include code to emulate a floating-point
unit, which will allow programs that use floating-point
instructions to run.
If you have an Apple machine or an IBM RS/6000 or pSeries machine,
or any machine with a 6xx, 7xx or 7xxx series processor, say N
here. Saying Y here will not hurt performance (on any machine) but
will increase the size of the kernel.
config CPU_FREQ
bool "CPU Frequency scaling"
help
Clock scaling allows you to change the clock speed of CPUs on the
fly. This is a nice method to save battery power on notebooks,
because the lower the clock speed, the less power the CPU consumes.
For more information, take a look at linux/Documentation/cpu-freq or
at
If in doubt, say N.
source "drivers/cpufreq/Kconfig"
config CPU_FREQ_PMAC
bool "Support for Apple PowerBooks"
depends on CPU_FREQ && ADB_PMU
help
This adds support for frequency switching on Apple PowerBooks,
this currently includes some models of iBook & Titanium
PowerBook.
config CPU_FREQ_TABLE
bool
depends on CPU_FREQ_PMAC
default y
config PPC601_SYNC_FIX
bool "Workarounds for PPC601 bugs"
depends on 6xx && (PPC_PREP || PPC_PMAC)
help
Some versions of the PPC601 (the first PowerPC chip) have bugs which
mean that extra synchronization instructions are required near
certain instructions, typically those that make major changes to the
CPU state. These extra instructions reduce performance slightly.
If you say N here, these extra instructions will not be included,
resulting in a kernel which will run faster but may not run at all
on some systems with the PPC601 chip.
If in doubt, say Y here.
source arch/ppc/platforms/4xx/Kconfig
config PPC64BRIDGE
bool
depends on POWER3 || POWER4
default y
config PPC_STD_MMU
bool
depends on 6xx || POWER3 || POWER4
default y
config NOT_COHERENT_CACHE
bool
depends on 4xx || 8xx
default y
endmenu
menu "Platform options"
choice
prompt "8xx Machine Type"
depends on 8xx
default RPXLITE
config RPXLITE
bool "RPX-Lite"
---help---
Single-board computers based around the PowerPC MPC8xx chips and
intended for embedded applications. The following types are
supported:
RPX-Lite:
Embedded Planet RPX Lite. PC104 form-factor SBC based on the MPC823.
RPX-Classic:
Embedded Planet RPX Classic Low-fat. Credit-card-size SBC based on
the MPC 860
BSE-IP:
Bright Star Engineering ip-Engine.
TQM823L:
TQM850L:
TQM855L:
TQM860L:
MPC8xx based family of mini modules, half credit card size,
up to 64 MB of RAM, 8 MB Flash, (Fast) Ethernet, 2 x serial ports,
2 x CAN bus interface, ...
Manufacturer: TQ Components, www.tq-group.de
Date of Release: October (?) 1999
End of Life: not yet :-)
URL:
- module:
- starter kit:
- images:
FPS850L:
FingerPrint Sensor System (based on TQM850L)
Manufacturer: IKENDI AG,
Date of Release: November 1999
End of life: end 2000 ?
URL: see TQM850L
SPD823TS:
MPC823 based board used in the "Tele Server" product
Manufacturer: Speech Design,
Date of Release: Mid 2000 (?)
End of life: -
URL:
select "English", then "Teleteam Solutions", then "TeleServer"
IVMS8:
MPC860 based board used in the "Integrated Voice Mail System",
Small Version (8 voice channels)
Manufacturer: Speech Design,
Date of Release: December 2000 (?)
End of life: -
URL:
IVML24:
MPC860 based board used in the "Integrated Voice Mail System",
Large Version (24 voice channels)
Manufacturer: Speech Design,
Date of Release: March 2001 (?)
End of life: -
URL:
SM850:
Service Module (based on TQM850L)
Manufacturer: Dependable Computer Systems,
Date of Release: end 2000 (?)
End of life: mid 2001 (?)
URL:
HERMES:
Hermes-Pro ISDN/LAN router with integrated 8 x hub
Manufacturer: Multidata Gesellschaft für Datentechnik und Informatik
Date of Release: 2000 (?)
End of life: -
URL:
IP860:
VMEBus IP (Industry Pack) carrier board with MPC860
Manufacturer: MicroSys GmbH,
Date of Release: ?
End of life: -
URL:
PCU_E:
PCU = Peripheral Controller Unit, Extended
Manufacturer: Siemens AG, ICN (Information and Communication Networks)
Date of Release: April 2001
End of life: August 2001
URL: n. a.
config RPXCLASSIC
bool "RPX-Classic"
help
The RPX-Classic is a single-board computer based on the Motorola
MPC860. It features 16MB of DRAM and a variable amount of flash,
I2C EEPROM, thermal monitoring, a PCMCIA slot, a DIP switch and two
LEDs. Variants with Ethernet ports exist. Say Y here to support it
directly.
config BSEIP
bool "BSE-IP"
help
Say Y here to support the Bright Star Engineering ipEngine SBC.
This is a credit-card-sized device featuring a MPC823 processor,
26MB DRAM, 4MB flash, Ethernet, a 16K-gate FPGA, USB, an LCD/video
controller, and two RS232 ports.
config FADS
bool "FADS"
config TQM823L
bool "TQM823L"
help
Say Y here to support the TQM823L, one of an MPC8xx-based family of
mini SBCs (half credit-card size) from TQ Components first released
in late 1999. Technical references are at
, and
, and an image at
.
config TQM850L
bool "TQM850L"
help
Say Y here to support the TQM850L, one of an MPC8xx-based family of
mini SBCs (half credit-card size) from TQ Components first released
in late 1999. Technical references are at
, and
, and an image at
.
config TQM855L
bool "TQM855L"
help
Say Y here to support the TQM855L, one of an MPC8xx-based family of
mini SBCs (half credit-card size) from TQ Components first released
in late 1999. Technical references are at
, and
, and an image at
.
config TQM860L
bool "TQM860L"
help
Say Y here to support the TQM860L, one of an MPC8xx-based family of
mini SBCs (half credit-card size) from TQ Components first released
in late 1999. Technical references are at
, and
, and an image at
.
config FPS850L
bool "FPS850L"
config SPD823TS
bool "SPD823TS"
help
Say Y here to support the Speech Design 823 Tele-Server from Speech
Design, released in 2000. The manufacturer's website is at
.
config IVMS8
bool "IVMS8"
help
Say Y here to support the Integrated Voice-Mail Small 8-channel SBC
from Speech Design, released March 2001. The manufacturer's website
is at .
config IVML24
bool "IVML24"
help
Say Y here to support the Integrated Voice-Mail Large 24-channel SBC
from Speech Design, released March 2001. The manufacturer's website
is at .
config SM850
bool "SM850"
help
Say Y here to support the Service Module 850 from Dependable
Computer Systems, an SBC based on the TQM850L module by TQ
Components. This board is no longer in production. The
manufacturer's website is at .
config HERMES_PRO
bool "HERMES"
config IP860
bool "IP860"
config LWMON
bool "LWMON"
config PCU_E
bool "PCU_E"
config CCM
bool "CCM"
config LANTEC
bool "LANTEC"
config MBX
bool "MBX"
help
MBX is a line of Motorola single-board computer based around the
MPC821 and MPC860 processors, and intended for embedded-controller
applications. Say Y here to support these boards directly.
config WINCEPT
bool "WinCept"
help
The Wincept 100/110 is a Motorola single-board computer based on the
MPC821 PowerPC, introduced in 1998 and designed to be used in
thin-client machines. Say Y to support it directly.
endchoice
choice
prompt "Machine Type"
depends on 6xx || POWER3 || POWER4
default PPC_MULTIPLATFORM
---help---
Linux currently supports several different kinds of PowerPC-based
machines: Apple Power Macintoshes and clones (such as the Motorola
Starmax series), PReP (PowerPC Reference Platform) machines (such
as the Motorola PowerStacks, Motorola cPCI/VME embedded systems,
and some IBM RS/6000 systems), CHRP (Common Hardware Reference
Platform) machines (including all of the recent IBM RS/6000 and
pSeries machines), and several embedded PowerPC systems containing
4xx, 6xx, 7xx, 8xx, 74xx, and 82xx processors. Currently, the
default option is to build a kernel which works on the first three.
Select CHRP/PowerMac/PReP if configuring for an IBM RS/6000 or
pSeries machine, a Power Macintosh (including iMacs, iBooks and
Powerbooks), or a PReP machine.
Select Gemini if configuring for a Synergy Microsystems' Gemini
series Single Board Computer. More information is available at:
.
Select APUS if configuring for a PowerUP Amiga. More information is
available at: .
config PPC_MULTIPLATFORM
bool "CHRP/PowerMac/PReP"
config APUS
bool "Amiga-APUS"
help
Select APUS if configuring for a PowerUP Amiga.
More information is available at:
.
config WILLOW
bool "Cogent-Willow"
config PCORE
bool "Force-PowerCore"
config POWERPMC250
bool "Force-PowerPMC250"
config EV64260
bool "Galileo-EV-64260-BP"
config SPRUCE
bool "IBM-Spruce"
config LOPEC
bool "Motorola-LoPEC"
config MCPN765
bool "Motorola-MCPN765"
config MVME5100
bool "Motorola-MVME5100"
config PPLUS
bool "Motorola-PowerPlus"
config PRPMC750
bool "Motorola-PrPMC750"
config PRPMC800
bool "Motorola-PrPMC800"
config SANDPOINT
bool "Motorola-Sandpoint"
help
Select SANDPOINT if configuring for a Motorola Sandpoint X3
(any flavor).
config ADIR
bool "SBS-Adirondack"
config K2
bool "SBS-K2"
config PAL4
bool "SBS-Palomar4"
config GEMINI
bool "Synergy-Gemini"
help
Select Gemini if configuring for a Synergy Microsystems' Gemini
series Single Board Computer. More information is available at:
.
config EST8260
bool "EST8260"
---help---
The EST8260 is a single-board computer manufactured by Wind River
Systems, Inc. (formerly Embedded Support Tools Corp.) and based on
the MPC8260. Wind River Systems has a website at
, but the EST8260 cannot be found on it
and has probably been discontinued or rebadged.
config SBS8260
bool "SBS8260"
config RPX6
bool "RPXSUPER"
config TQM8260
bool "TQM8260"
---help---
MPC8260 based module, little larger than credit card,
up to 128 MB global + 64 MB local RAM, 32 MB Flash,
32 kB EEPROM, 256 kB L@ Cache, 10baseT + 100baseT Ethernet,
2 x serial ports, ...
Manufacturer: TQ Components, www.tq-group.de
Date of Release: June 2001
End of Life: not yet :-)
URL:
endchoice
config TQM8xxL
bool
depends on 8xx && (TQM823L || TQM850L || FPS850L || TQM855L || TQM860L || SM850)
default y
config EMBEDDEDBOOT
bool
depends on 8xx || 8260
default y
config 8260
bool "MPC8260 CPM Support" if WILLOW
depends on 6xx
default y if TQM8260 || RPXSUPER || EST8260 || SBS8260
help
The MPC8260 CPM (Communications Processor Module) is a typical
embedded CPU made by Motorola. Selecting this option means that
you wish to build a kernel for a machine with specifically an 8260
for a CPU.
config PPC_CHRP
bool
depends on PPC_MULTIPLATFORM
default y
config PPC_PMAC
bool
depends on PPC_MULTIPLATFORM
default y
config PPC_PMAC64
bool
depends on PPC_PMAC && POWER4
default y
config PPC_PREP
bool
depends on PPC_MULTIPLATFORM
default y
config PPC_OF
bool
depends on PPC_PMAC || PPC_CHRP
default y
config PPC_GEN550
bool
depends on SANDPOINT || MCPN765 || SPRUCE || PPLUS || PCORE || PRPMC750 || K2 || PRPMC800
default y
config FORCE
bool
depends on 6xx && (PCORE || POWERPMC250)
default y
config GT64260
bool
depends on EV64260
default y
config NONMONARCH_SUPPORT
bool "Enable Non-Monarch Support"
depends on PRPMC800
config HARRIER
bool
depends on PRPMC800
default y
config EPIC_SERIAL_MODE
bool
depends on 6xx && (LOPEC || SANDPOINT)
default y
config MPC10X_BRIDGE
bool
depends on PCORE || POWERPMC250 || LOPEC || SANDPOINT
default y
config MPC10X_STORE_GATHERING
bool "Enable MPC10x store gathering"
depends on MPC10X_BRIDGE
config CPC710_DATA_GATHERING
bool "Enable CPC710 data gathering"
depends on K2
config HARRIER_STORE_GATHERING
bool "Enable Harrier store gathering"
depends on HARRIER
config MVME5100_IPMC761_PRESENT
bool "MVME5100 configured with an IPMC761"
depends on MVME5100
config SPRUCE_BAUD_33M
bool "Spruce baud clock support"
depends on SPRUCE
config PC_KEYBOARD
bool "PC PS/2 style Keyboard"
depends on 4xx || 8260
config SERIAL_CONSOLE
bool
depends on 8xx || 8260
default y
config SERIAL_CONSOLE_BAUD
int
depends on EV64260
default "115200"
config PPCBUG_NVRAM
bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC
default y if PPC_PREP
config SMP
bool "Symmetric multi-processing support"
---help---
This enables support for systems with more than one CPU. If you have
a system with only one CPU, say N. If you have a system with more
than one CPU, say Y. Note that the kernel does not currently
support SMP machines with 603/603e/603ev or PPC750 ("G3") processors
since they have inadequate hardware support for multiprocessor
operation.
If you say N here, the kernel will run on single and multiprocessor
machines, but will use only one CPU of a multiprocessor machine. If
you say Y here, the kernel will run on single-processor machines.
On a single-processor machine, the kernel will run faster if you say
N here.
If you don't know what to do here, say N.
config IRQ_ALL_CPUS
bool "Distribute interrupts on all CPUs by default"
depends on SMP
help
This option gives the kernel permission to distribute IRQs across
multiple CPUs. Saying N here will route all IRQs to the first
CPU. Generally saying Y is safe, although some problems have been
reported with SMP Power Macintoshes with this option enabled.
config NR_CPUS
int "Maximum number of CPUs (2-32)"
range 2 32
depends on SMP
default "4"
config PREEMPT
bool "Preemptible Kernel"
help
This option reduces the latency of the kernel when reacting to
real-time or interactive events by allowing a low priority process to
be preempted even if it is in kernel mode executing a system call.
Say Y here if you are building a kernel for a desktop, embedded
or real-time system. Say N if you are unsure.
config HIGHMEM
bool "High memory support"
config KERNEL_ELF
bool
default y
source "fs/Kconfig.binfmt"
config PROC_DEVICETREE
bool "Support for Open Firmware device tree in /proc"
depends on PPC_OF && PROC_FS
help
This option adds a device-tree directory under /proc which contains
an image of the device tree that the kernel copies from Open
Firmware. If unsure, say Y here.
config PPC_RTAS
bool "Support for RTAS (RunTime Abstraction Services) in /proc"
depends on PPC_OF && PROC_FS
---help---
When you use this option, you will be able to use RTAS from
userspace.
RTAS stands for RunTime Abstraction Services and should
provide a portable way to access and set system information. This is
commonly used on RS/6000 (pSeries) computers.
You can access RTAS via the special proc file system entry rtas.
Don't confuse this rtas entry with the one in /proc/device-tree/rtas
which is readonly.
If you don't know if you can use RTAS look into
/proc/device-tree/rtas. If there are some entries, it is very likely
that you will be able to use RTAS.
You can do cool things with rtas. To print out information about
various sensors in the system, just do a
$ cat /proc/rtas/sensors
or if you power off your machine at night but want it running when
you enter your office at 7:45 am, do a
# date -d 'tomorrow 7:30' +%s > /proc/rtas/poweron
and shutdown.
If unsure, say Y.
config PREP_RESIDUAL
bool "Support for PReP Residual Data"
depends on PPC_PREP
help
Some PReP systems have residual data passed to the kernel by the
firmware. This allows detection of memory size, devices present and
other useful pieces of information. Sometimes this information is
not present or incorrect.
Unless you expect to boot on a PReP system, there is no need to
select Y.
config PROC_PREPRESIDUAL
bool "Support for reading of PReP Residual Data in /proc"
depends on PREP_RESIDUAL && PROC_FS
help
Enabling this option will create a /proc/residual file which allows
you to get at the residual data on PReP systems. You will need a tool
(lsresidual) to parse it. If you aren't on a PReP system, you don't
want this.
config CMDLINE_BOOL
bool "Default bootloader kernel arguments"
config CMDLINE
string "Initial kernel command string"
depends on CMDLINE_BOOL
default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
help
On some platforms, there is currently no way for the boot loader to
pass arguments to the kernel. For these platforms, you can supply
some command-line options at build time by entering them here. In
most cases you will need to specify the root device here.
config AMIGA
bool
depends on APUS
default y
help
This option enables support for the Amiga series of computers.
config ZORRO
bool
depends on APUS
default y
help
This enables support for the Zorro bus in the Amiga. If you have
expansion cards in your Amiga that conform to the Amiga
AutoConfig(tm) specification, say Y, otherwise N. Note that even
expansion cards that do not fit in the Zorro slots but fit in e.g.
the CPU slot may fall in this category, so you have to say Y to let
Linux use these.
config ABSTRACT_CONSOLE
bool
depends on APUS
default y
config APUS_FAST_EXCEPT
bool
depends on APUS
default y
config AMIGA_PCMCIA
bool "Amiga 1200/600 PCMCIA support"
depends on APUS && EXPERIMENTAL
help
Include support in the kernel for pcmcia on Amiga 1200 and Amiga
600. If you intend to use pcmcia cards say Y; otherwise say N.
config AMIGA_BUILTIN_SERIAL
tristate "Amiga builtin serial support"
depends on APUS
help
If you want to use your Amiga's built-in serial port in Linux,
answer Y.
To compile this driver as a module, choose M here.
config GVPIOEXT
tristate "GVP IO-Extender support"
depends on APUS
help
If you want to use a GVP IO-Extender serial card in Linux, say Y.
Otherwise, say N.
config GVPIOEXT_LP
tristate "GVP IO-Extender parallel printer support"
depends on GVPIOEXT
help
Say Y to enable driving a printer from the parallel port on your
GVP IO-Extender card, N otherwise.
config GVPIOEXT_PLIP
tristate "GVP IO-Extender PLIP support"
depends on GVPIOEXT
help
Say Y to enable doing IP over the parallel port on your GVP
IO-Extender card, N otherwise.
config MULTIFACE_III_TTY
tristate "Multiface Card III serial support"
depends on APUS
help
If you want to use a Multiface III card's serial port in Linux,
answer Y.
To compile this driver as a module, choose M here.
config A2232
tristate "Commodore A2232 serial support (EXPERIMENTAL)"
depends on EXPERIMENTAL && APUS
---help---
This option supports the 2232 7-port serial card shipped with the
Amiga 2000 and other Zorro-bus machines, dating from 1989. At
a max of 19,200 bps, the ports are served by a 6551 ACIA UART chip
each, plus a 8520 CIA, and a master 6502 CPU and buffer as well. The
ports were connected with 8 pin DIN connectors on the card bracket,
for which 8 pin to DB25 adapters were supplied. The card also had
jumpers internally to toggle various pinning configurations.
This driver can be built as a module; but then "generic_serial"
will also be built as a module. This has to be loaded before
"ser_a2232". If you want to do this, answer M here.
config WHIPPET_SERIAL
tristate "Hisoft Whippet PCMCIA serial support"
depends on AMIGA_PCMCIA
help
HiSoft has a web page at , but there
is no listing for the Whippet in their Amiga section.
config APNE
tristate "PCMCIA NE2000 support"
depends on AMIGA_PCMCIA
help
If you have a PCMCIA NE2000 compatible adapter, say Y. Otherwise,
say N.
To compile this driver as a module, choose M here: the
module will be called apne.
config SERIAL_CONSOLE
bool "Support for serial port console"
depends on APUS && (AMIGA_BUILTIN_SERIAL=y || GVPIOEXT=y || MULTIFACE_III_TTY=y)
config HEARTBEAT
bool "Use power LED as a heartbeat"
depends on APUS
help
Use the power-on LED on your machine as a load meter. The exact
behavior is platform-dependent, but normally the flash frequency is
a hyperbolic function of the 5-minute load average.
config PROC_HARDWARE
bool "/proc/hardware support"
depends on APUS
source "drivers/zorro/Kconfig"
endmenu
menu "Bus options"
config ISA
bool "Support for ISA-bus hardware"
depends on PPC_PREP || PPC_CHRP
help
Find out whether you have ISA slots on your motherboard. ISA is the
name of a bus system, i.e. the way the CPU talks to the other stuff
inside your box. If you have an Apple machine, say N here; if you
have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If
you have an embedded board, consult your board documentation.
config GENERIC_ISA_DMA
bool
depends on POWER3 || POWER4 || 6xx && !8260
default y
config EISA
bool
help
The Extended Industry Standard Architecture (EISA) bus is a bus
architecture used on some older intel-based PCs.
config SBUS
bool
# Yes MCA RS/6000s exist but Linux-PPC does not currently support any
config MCA
bool
config PCI
bool "PCI support" if 40x || 8260
default y if !40x && !8260 && !8xx && !APUS
default PCI_PERMEDIA if !4xx && !8260 && !8xx && APUS
default PCI_QSPAN if !4xx && !8260 && 8xx
help
Find out whether your system includes a PCI bus. PCI is the name of
a bus system, i.e. the way the CPU talks to the other stuff inside
your box. If you say Y here, the kernel will include drivers and
infrastructure code to support PCI bus devices.
config PCI_DOMAINS
bool
default PCI
config PCI_QSPAN
bool "QSpan PCI"
depends on !4xx && !8260 && 8xx
help
Say Y here if you have a system based on a Motorola 8xx-series
embedded processor with a QSPAN PCI interface, otherwise say N.
config PCI_PERMEDIA
bool "PCI for Permedia2"
depends on !4xx && !8xx && APUS
source "drivers/pci/Kconfig"
source "drivers/pcmcia/Kconfig"
endmenu
menu "Advanced setup"
config ADVANCED_OPTIONS
bool "Prompt for advanced kernel configuration options"
help
This option will enable prompting for a variety of advanced kernel
configuration options. These options can cause the kernel to not
work if they are set incorrectly, but can be used to optimize certain
aspects of kernel memory management.
Unless you know what you are doing, say N here.
comment "Default settings for advanced configuration options are used"
depends on !ADVANCED_OPTIONS
config HIGHMEM_START_BOOL
bool "Set high memory pool address"
depends on ADVANCED_OPTIONS && HIGHMEM
help
This option allows you to set the base address of the kernel virtual
area used to map high memory pages. This can be useful in
optimizing the layout of kernel virtual memory.
Say N here unless you know what you are doing.
config HIGHMEM_START
hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL
default "0xfe000000"
config LOWMEM_SIZE_BOOL
bool "Set maximum low memory"
depends on ADVANCED_OPTIONS
help
This option allows you to set the maximum amount of memory which
will be used as "low memory", that is, memory which the kernel can
access directly, without having to set up a kernel virtual mapping.
This can be useful in optimizing the layout of kernel virtual
memory.
Say N here unless you know what you are doing.
config LOWMEM_SIZE
hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
default "0x30000000"
config KERNEL_START_BOOL
bool "Set custom kernel base address"
depends on ADVANCED_OPTIONS
help
This option allows you to set the kernel virtual address at which
the kernel will map low memory (the kernel image will be linked at
this address). This can be useful in optimizing the virtual memory
layout of the system.
Say N here unless you know what you are doing.
config KERNEL_START
hex "Virtual address of kernel base" if KERNEL_START_BOOL
default "0xc0000000"
config TASK_SIZE_BOOL
bool "Set custom user task size"
depends on ADVANCED_OPTIONS
help
This option allows you to set the amount of virtual address space
allocated to user tasks. This can be useful in optimizing the
virtual memory layout of the system.
Say N here unless you know what you are doing.
config TASK_SIZE
hex "Size of user task space" if TASK_SIZE_BOOL
default "0x80000000"
config BOOT_LOAD_BOOL
bool "Set the boot link/load address"
depends on ADVANCED_OPTIONS && !PPC_MULTIPLATFORM
help
This option allows you to set the initial load address of the zImage
or zImage.initrd file. This can be useful if you are on a board
which has a small amount of memory.
Say N here unless you know what you are doing.
config BOOT_LOAD
hex "Link/load address for booting" if BOOT_LOAD_BOOL
default "0x00400000" if 40x || 8xx || 8260
default "0x01000000" if 44x
default "0x00800000"
config PIN_TLB
bool "Pinned Kernel TLBs (860 ONLY)"
depends on ADVANCED_OPTIONS && 8xx
endmenu
source "drivers/Kconfig"
source "fs/Kconfig"
source "arch/ppc/8xx_io/Kconfig"
source "arch/ppc/8260_io/Kconfig"
menu "IBM 40x options"
depends on 40x
config SERIAL_SICC
bool "SICC Serial port"
depends on STB03xxx
config UART1_DFLT_CONSOLE
bool
depends on SERIAL_SICC && UART0_TTYS1
default y
config SERIAL_SICC_CONSOLE
bool
depends on SERIAL_SICC && UART0_TTYS1
default y
endmenu
source "lib/Kconfig"
menu "Kernel hacking"
config DEBUG_KERNEL
bool "Kernel debugging"
config DEBUG_SLAB
bool "Debug memory allocations"
depends on DEBUG_KERNEL
config MAGIC_SYSRQ
bool "Magic SysRq key"
depends on DEBUG_KERNEL
help
If you say Y here, you will have some control over the system even
if the system crashes for example during kernel debugging (e.g., you
will be able to flush the buffer cache to disk, reboot the system
immediately or dump some status information). This is accomplished
by pressing various keys while holding SysRq (Alt+PrintScreen). It
also works on a serial console (on PC hardware at least), if you
send a BREAK and then within 5 seconds a command keypress. The
keys are documented in . Don't say Y
unless you really know what this hack does.
config DEBUG_SPINLOCK
bool "Spinlock debugging"
depends on DEBUG_KERNEL
help
Say Y here and to CONFIG_SMP to include code to check for missing
spinlock initialization and some other common spinlock errors.
config DEBUG_HIGHMEM
bool "Highmem debugging"
depends on DEBUG_KERNEL && HIGHMEM
help
This options enables additional error checking for high memory
systems. Disable for production systems.
config DEBUG_SPINLOCK_SLEEP
bool "Sleep-inside-spinlock checking"
depends on DEBUG_KERNEL
help
If you say Y here, various routines which may sleep will become very
noisy if they are called with a spinlock held.
config KGDB
bool "Include kgdb kernel debugger"
depends on DEBUG_KERNEL
select DEBUG_INFO
help
Include in-kernel hooks for kgdb, the Linux kernel source level
debugger. See for more information.
Unless you are intending to debug the kernel, say N here.
choice
prompt "Serial Port"
depends on KGDB
default KGDB_TTYS1
config KGDB_TTYS0
bool "ttyS0"
config KGDB_TTYS1
bool "ttyS1"
config KGDB_TTYS2
bool "ttyS2"
config KGDB_TTYS3
bool "ttyS3"
endchoice
config KGDB_CONSOLE
bool "Enable serial console thru kgdb port"
depends on KGDB && 8xx || 8260
help
If you enable this, all serial console messages will be sent
over the gdb stub.
If unsure, say N.
config XMON
bool "Include xmon kernel debugger"
depends on DEBUG_KERNEL
help
Include in-kernel hooks for the xmon kernel monitor/debugger.
Unless you are intending to debug the kernel, say N here.
config BDI_SWITCH
bool "Include BDI-2000 user context switcher"
depends on DEBUG_KERNEL
help
Include in-kernel support for the Abatron BDI2000 debugger.
Unless you are intending to debug the kernel with one of these
machines, say N here.
config DEBUG_INFO
bool "Compile the kernel with debug info"
depends on DEBUG_KERNEL
help
If you say Y here the resulting kernel image will include
debugging info resulting in a larger kernel image.
Say Y here only if you plan to use some sort of debugger to
debug the kernel.
If you don't debug the kernel, you can say N.
config BOOTX_TEXT
bool "Support for early boot text console (BootX or OpenFirmware only)"
depends PPC_OF
help
Say Y here to see progress messages from the boot firmware in text
mode. Requires either BootX or Open Firmware.
config SERIAL_TEXT_DEBUG
bool "Support for early boot texts over serial port"
depends on 4xx || GT64260 || LOPEC || PPLUS || PRPMC800 || PPC_GEN550
config OCP
bool
depends on IBM_OCP
default y
endmenu
source "kernel/vserver/Kconfig"
source "security/Kconfig"
source "crypto/Kconfig"