123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753754755756757758759760761762763764765766767768769770771772773774775776777778779780781782783784785786787788789790791792793794795796797798799800801802803804805806807808809810811812813814815816817818819820821822823824825826827828829830831832833834835836837838839840841842843844845846847848849850851852853854855856857858859860861862863864865866867868869870871872873874875876877878879880881882 |
- #
- # For a description of the syntax of this configuration file,
- # see Documentation/kbuild/kconfig-language.txt.
- #
- mainmenu "Linux Kernel Configuration"
- config ARM
- bool
- default y
- select RTC_LIB
- help
- The ARM series is a line of low-power-consumption RISC chip designs
- licensed by ARM Ltd and targeted at embedded applications and
- handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
- manufactured, but legacy ARM-based PC hardware remains popular in
- Europe. There is an ARM Linux project with a web page at
- <http://www.arm.linux.org.uk/>.
- config MMU
- bool
- default y
- config EISA
- bool
- ---help---
- The Extended Industry Standard Architecture (EISA) bus was
- developed as an open alternative to the IBM MicroChannel bus.
- The EISA bus provided some of the features of the IBM MicroChannel
- bus while maintaining backward compatibility with cards made for
- the older ISA bus. The EISA bus saw limited use between 1988 and
- 1995 when it was made obsolete by the PCI bus.
- Say Y here if you are building a kernel for an EISA-based machine.
- Otherwise, say N.
- config SBUS
- bool
- config MCA
- bool
- help
- MicroChannel Architecture is found in some IBM PS/2 machines and
- laptops. It is a bus system similar to PCI or ISA. See
- <file:Documentation/mca.txt> (and especially the web page given
- there) before attempting to build an MCA bus kernel.
- config RWSEM_GENERIC_SPINLOCK
- bool
- default y
- config RWSEM_XCHGADD_ALGORITHM
- bool
- config GENERIC_HWEIGHT
- bool
- default y
- config GENERIC_CALIBRATE_DELAY
- bool
- default y
- config GENERIC_BUST_SPINLOCK
- bool
- config ARCH_MAY_HAVE_PC_FDC
- bool
- config GENERIC_ISA_DMA
- bool
- config FIQ
- bool
- config ARCH_MTD_XIP
- bool
- config VECTORS_BASE
- hex
- default 0xffff0000 if MMU
- default DRAM_BASE if REMAP_VECTORS_TO_RAM
- default 0x00000000
- help
- The base address of exception vectors.
- source "init/Kconfig"
- menu "System Type"
- choice
- prompt "ARM system type"
- default ARCH_VERSATILE
- config ARCH_CLPS7500
- bool "Cirrus-CL-PS7500FE"
- select TIMER_ACORN
- select ISA
- help
- Support for the Cirrus Logic PS7500FE system-on-a-chip.
- config ARCH_CLPS711X
- bool "CLPS711x/EP721x-based"
- help
- Support for Cirrus Logic 711x/721x based boards.
- config ARCH_CO285
- bool "Co-EBSA285"
- select FOOTBRIDGE
- select FOOTBRIDGE_ADDIN
- help
- Support for Intel's EBSA285 companion chip.
- config ARCH_EBSA110
- bool "EBSA-110"
- select ISA
- help
- This is an evaluation board for the StrongARM processor available
- from Digital. It has limited hardware on-board, including an
- Ethernet interface, two PCMCIA sockets, two serial ports and a
- parallel port.
- config ARCH_EP93XX
- bool "EP93xx-based"
- select ARM_AMBA
- select ARM_VIC
- help
- This enables support for the Cirrus EP93xx series of CPUs.
- config ARCH_FOOTBRIDGE
- bool "FootBridge"
- select FOOTBRIDGE
- help
- Support for systems based on the DC21285 companion chip
- ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
- config ARCH_INTEGRATOR
- bool "Integrator"
- select ARM_AMBA
- select ICST525
- help
- Support for ARM's Integrator platform.
- config ARCH_IOP3XX
- bool "IOP3xx-based"
- select PCI
- help
- Support for Intel's IOP3XX (XScale) family of processors.
- config ARCH_IXP4XX
- bool "IXP4xx-based"
- select DMABOUNCE
- select PCI
- help
- Support for Intel's IXP4XX (XScale) family of processors.
- config ARCH_IXP2000
- bool "IXP2400/2800-based"
- select PCI
- help
- Support for Intel's IXP2400/2800 (XScale) family of processors.
- config ARCH_IXP23XX
- bool "IXP23XX-based"
- select PCI
- help
- Support for Intel's IXP23xx (XScale) family of processors.
- config ARCH_L7200
- bool "LinkUp-L7200"
- select FIQ
- help
- Say Y here if you intend to run this kernel on a LinkUp Systems
- L7200 Software Development Board which uses an ARM720T processor.
- Information on this board can be obtained at:
- <http://www.linkupsys.com/>
- If you have any questions or comments about the Linux kernel port
- to this board, send e-mail to <sjhill@cotw.com>.
- config ARCH_PXA
- bool "PXA2xx-based"
- select ARCH_MTD_XIP
- help
- Support for Intel's PXA2XX processor line.
- config ARCH_RPC
- bool "RiscPC"
- select ARCH_ACORN
- select FIQ
- select TIMER_ACORN
- select ARCH_MAY_HAVE_PC_FDC
- select ISA_DMA_API
- help
- On the Acorn Risc-PC, Linux can support the internal IDE disk and
- CD-ROM interface, serial and parallel port, and the floppy drive.
- config ARCH_SA1100
- bool "SA1100-based"
- select ISA
- select ARCH_DISCONTIGMEM_ENABLE
- select ARCH_MTD_XIP
- help
- Support for StrongARM 11x0 based boards.
- config ARCH_S3C2410
- bool "Samsung S3C2410"
- help
- Samsung S3C2410X CPU based systems, such as the Simtec Electronics
- BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
- the Samsung SMDK2410 development board (and derivatives).
- config ARCH_SHARK
- bool "Shark"
- select ISA
- select ISA_DMA
- select PCI
- help
- Support for the StrongARM based Digital DNARD machine, also known
- as "Shark" (<http://www.shark-linux.de/shark.html>).
- config ARCH_LH7A40X
- bool "Sharp LH7A40X"
- help
- Say Y here for systems based on one of the Sharp LH7A40X
- System on a Chip processors. These CPUs include an ARM922T
- core with a wide array of integrated devices for
- hand-held and low-power applications.
- config ARCH_OMAP
- bool "TI OMAP"
- help
- Support for TI's OMAP platform (OMAP1 and OMAP2).
- config ARCH_VERSATILE
- bool "Versatile"
- select ARM_AMBA
- select ARM_VIC
- select ICST307
- help
- This enables support for ARM Ltd Versatile board.
- config ARCH_REALVIEW
- bool "RealView"
- select ARM_AMBA
- select ICST307
- help
- This enables support for ARM Ltd RealView boards.
- config ARCH_IMX
- bool "IMX"
- help
- Support for Motorola's i.MX family of processors (MX1, MXL).
- config ARCH_H720X
- bool "Hynix-HMS720x-based"
- select ISA_DMA_API
- help
- This enables support for systems based on the Hynix HMS720x
- config ARCH_AAEC2000
- bool "Agilent AAEC-2000 based"
- select ARM_AMBA
- help
- This enables support for systems based on the Agilent AAEC-2000
- config ARCH_AT91RM9200
- bool "AT91RM9200"
- help
- Say Y here if you intend to run this kernel on an Atmel
- AT91RM9200-based board.
- endchoice
- source "arch/arm/mach-clps711x/Kconfig"
- source "arch/arm/mach-ep93xx/Kconfig"
- source "arch/arm/mach-footbridge/Kconfig"
- source "arch/arm/mach-integrator/Kconfig"
- source "arch/arm/mach-iop3xx/Kconfig"
- source "arch/arm/mach-ixp4xx/Kconfig"
- source "arch/arm/mach-ixp2000/Kconfig"
- source "arch/arm/mach-ixp23xx/Kconfig"
- source "arch/arm/mach-pxa/Kconfig"
- source "arch/arm/mach-sa1100/Kconfig"
- source "arch/arm/plat-omap/Kconfig"
- source "arch/arm/mach-omap1/Kconfig"
- source "arch/arm/mach-omap2/Kconfig"
- source "arch/arm/mach-s3c2410/Kconfig"
- source "arch/arm/mach-lh7a40x/Kconfig"
- source "arch/arm/mach-imx/Kconfig"
- source "arch/arm/mach-h720x/Kconfig"
- source "arch/arm/mach-versatile/Kconfig"
- source "arch/arm/mach-aaec2000/Kconfig"
- source "arch/arm/mach-realview/Kconfig"
- source "arch/arm/mach-at91rm9200/Kconfig"
- # Definitions to make life easier
- config ARCH_ACORN
- bool
- source arch/arm/mm/Kconfig
- # bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
- config XSCALE_PMU
- bool
- depends on CPU_XSCALE && !XSCALE_PMU_TIMER
- default y
- endmenu
- source "arch/arm/common/Kconfig"
- config FORCE_MAX_ZONEORDER
- int
- depends on SA1111
- default "9"
- menu "Bus support"
- config ARM_AMBA
- bool
- config ISA
- bool
- 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. Other bus systems are PCI, EISA, MicroChannel
- (MCA) or VESA. ISA is an older system, now being displaced by PCI;
- newer boards don't support it. If you have ISA, say Y, otherwise N.
- # Select ISA DMA controller support
- config ISA_DMA
- bool
- select ISA_DMA_API
- # Select ISA DMA interface
- config ISA_DMA_API
- bool
- config PCI
- bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB
- help
- Find out whether you have a PCI motherboard. PCI is the name of a
- bus system, i.e. the way the CPU talks to the other stuff inside
- your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
- VESA. If you have PCI, say Y, otherwise N.
- The PCI-HOWTO, available from
- <http://www.tldp.org/docs.html#howto>, contains valuable
- information about which PCI hardware does work under Linux and which
- doesn't.
- # Select the host bridge type
- config PCI_HOST_VIA82C505
- bool
- depends on PCI && ARCH_SHARK
- default y
- source "drivers/pci/Kconfig"
- source "drivers/pcmcia/Kconfig"
- endmenu
- menu "Kernel Features"
- config SMP
- bool "Symmetric Multi-Processing (EXPERIMENTAL)"
- depends on EXPERIMENTAL && REALVIEW_MPCORE
- help
- This enables support for systems with more than one CPU. If you have
- a system with only one CPU, like most personal computers, say N. If
- you have a system with more than one CPU, say Y.
- 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 many, but not all, single
- processor machines. On a single processor machine, the kernel will
- run faster if you say N here.
- See also the <file:Documentation/smp.txt>,
- <file:Documentation/i386/IO-APIC.txt>,
- <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
- <http://www.linuxdoc.org/docs.html#howto>.
- If you don't know what to do here, say N.
- config NR_CPUS
- int "Maximum number of CPUs (2-32)"
- range 2 32
- depends on SMP
- default "4"
- config HOTPLUG_CPU
- bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
- depends on SMP && HOTPLUG && EXPERIMENTAL
- help
- Say Y here to experiment with turning CPUs off and on. CPUs
- can be controlled through /sys/devices/system/cpu.
- config LOCAL_TIMERS
- bool "Use local timer interrupts"
- depends on SMP && REALVIEW_MPCORE
- default y
- help
- Enable support for local timers on SMP platforms, rather then the
- legacy IPI broadcast method. Local timers allows the system
- accounting to be spread across the timer interval, preventing a
- "thundering herd" at every timer tick.
- config PREEMPT
- bool "Preemptible Kernel (EXPERIMENTAL)"
- depends on EXPERIMENTAL
- 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.
- This allows applications to run more reliably even when the system is
- under load.
- Say Y here if you are building a kernel for a desktop, embedded
- or real-time system. Say N if you are unsure.
- config NO_IDLE_HZ
- bool "Dynamic tick timer"
- help
- Select this option if you want to disable continuous timer ticks
- and have them programmed to occur as required. This option saves
- power as the system can remain in idle state for longer.
- By default dynamic tick is disabled during the boot, and can be
- manually enabled with:
- echo 1 > /sys/devices/system/timer/timer0/dyn_tick
- Alternatively, if you want dynamic tick automatically enabled
- during boot, pass "dyntick=enable" via the kernel command string.
- Please note that dynamic tick may affect the accuracy of
- timekeeping on some platforms depending on the implementation.
- Currently at least OMAP, PXA2xx and SA11x0 platforms are known
- to have accurate timekeeping with dynamic tick.
- config HZ
- int
- default 128 if ARCH_L7200
- default 200 if ARCH_EBSA110 || ARCH_S3C2410
- default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
- default 100
- config AEABI
- bool "Use the ARM EABI to compile the kernel"
- help
- This option allows for the kernel to be compiled using the latest
- ARM ABI (aka EABI). This is only useful if you are using a user
- space environment that is also compiled with EABI.
- Since there are major incompatibilities between the legacy ABI and
- EABI, especially with regard to structure member alignment, this
- option also changes the kernel syscall calling convention to
- disambiguate both ABIs and allow for backward compatibility support
- (selected with CONFIG_OABI_COMPAT).
- To use this you need GCC version 4.0.0 or later.
- config OABI_COMPAT
- bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
- depends on AEABI && EXPERIMENTAL
- default y
- help
- This option preserves the old syscall interface along with the
- new (ARM EABI) one. It also provides a compatibility layer to
- intercept syscalls that have structure arguments which layout
- in memory differs between the legacy ABI and the new ARM EABI
- (only for non "thumb" binaries). This option adds a tiny
- overhead to all syscalls and produces a slightly larger kernel.
- If you know you'll be using only pure EABI user space then you
- can say N here. If this option is not selected and you attempt
- to execute a legacy ABI binary then the result will be
- UNPREDICTABLE (in fact it can be predicted that it won't work
- at all). If in doubt say Y.
- config ARCH_DISCONTIGMEM_ENABLE
- bool
- default (ARCH_LH7A40X && !LH7A40X_CONTIGMEM)
- help
- Say Y to support efficient handling of discontiguous physical memory,
- for architectures which are either NUMA (Non-Uniform Memory Access)
- or have huge holes in the physical address space for other reasons.
- See <file:Documentation/vm/numa> for more.
- config NODES_SHIFT
- int
- default "4" if ARCH_LH7A40X
- default "2"
- depends on NEED_MULTIPLE_NODES
- source "mm/Kconfig"
- config LEDS
- bool "Timer and CPU usage LEDs"
- depends on ARCH_CDB89712 || ARCH_CO285 || ARCH_EBSA110 || \
- ARCH_EBSA285 || ARCH_IMX || ARCH_INTEGRATOR || \
- ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
- ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
- ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
- ARCH_AT91RM9200
- help
- If you say Y here, the LEDs on your machine will be used
- to provide useful information about your current system status.
- If you are compiling a kernel for a NetWinder or EBSA-285, you will
- be able to select which LEDs are active using the options below. If
- you are compiling a kernel for the EBSA-110 or the LART however, the
- red LED will simply flash regularly to indicate that the system is
- still functional. It is safe to say Y here if you have a CATS
- system, but the driver will do nothing.
- config LEDS_TIMER
- bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
- MACH_OMAP_H2 || MACH_OMAP_PERSEUS2
- depends on LEDS
- default y if ARCH_EBSA110
- help
- If you say Y here, one of the system LEDs (the green one on the
- NetWinder, the amber one on the EBSA285, or the red one on the LART)
- will flash regularly to indicate that the system is still
- operational. This is mainly useful to kernel hackers who are
- debugging unstable kernels.
- The LART uses the same LED for both Timer LED and CPU usage LED
- functions. You may choose to use both, but the Timer LED function
- will overrule the CPU usage LED.
- config LEDS_CPU
- bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
- !ARCH_OMAP) || MACH_OMAP_H2 || MACH_OMAP_PERSEUS2
- depends on LEDS
- help
- If you say Y here, the red LED will be used to give a good real
- time indication of CPU usage, by lighting whenever the idle task
- is not currently executing.
- The LART uses the same LED for both Timer LED and CPU usage LED
- functions. You may choose to use both, but the Timer LED function
- will overrule the CPU usage LED.
- config ALIGNMENT_TRAP
- bool
- default y if !ARCH_EBSA110
- help
- ARM processors can not fetch/store information which is not
- naturally aligned on the bus, i.e., a 4 byte fetch must start at an
- address divisible by 4. On 32-bit ARM processors, these non-aligned
- fetch/store instructions will be emulated in software if you say
- here, which has a severe performance impact. This is necessary for
- correct operation of some network protocols. With an IP-only
- configuration it is safe to say N, otherwise say Y.
- endmenu
- menu "Boot options"
- # Compressed boot loader in ROM. Yes, we really want to ask about
- # TEXT and BSS so we preserve their values in the config files.
- config ZBOOT_ROM_TEXT
- hex "Compressed ROM boot loader base address"
- default "0"
- help
- The physical address at which the ROM-able zImage is to be
- placed in the target. Platforms which normally make use of
- ROM-able zImage formats normally set this to a suitable
- value in their defconfig file.
- If ZBOOT_ROM is not enabled, this has no effect.
- config ZBOOT_ROM_BSS
- hex "Compressed ROM boot loader BSS address"
- default "0"
- help
- The base address of 64KiB of read/write memory in the target
- for the ROM-able zImage, which must be available while the
- decompressor is running. Platforms which normally make use of
- ROM-able zImage formats normally set this to a suitable
- value in their defconfig file.
- If ZBOOT_ROM is not enabled, this has no effect.
- config ZBOOT_ROM
- bool "Compressed boot loader in ROM/flash"
- depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
- help
- Say Y here if you intend to execute your compressed kernel image
- (zImage) directly from ROM or flash. If unsure, say N.
- config CMDLINE
- string "Default kernel command string"
- default ""
- help
- On some architectures (EBSA110 and CATS), there is currently no way
- for the boot loader to pass arguments to the kernel. For these
- architectures, you should supply some command-line options at build
- time by entering them here. As a minimum, you should specify the
- memory size and the root device (e.g., mem=64M root=/dev/nfs).
- config XIP_KERNEL
- bool "Kernel Execute-In-Place from ROM"
- depends on !ZBOOT_ROM
- help
- Execute-In-Place allows the kernel to run from non-volatile storage
- directly addressable by the CPU, such as NOR flash. This saves RAM
- space since the text section of the kernel is not loaded from flash
- to RAM. Read-write sections, such as the data section and stack,
- are still copied to RAM. The XIP kernel is not compressed since
- it has to run directly from flash, so it will take more space to
- store it. The flash address used to link the kernel object files,
- and for storing it, is configuration dependent. Therefore, if you
- say Y here, you must know the proper physical address where to
- store the kernel image depending on your own flash memory usage.
- Also note that the make target becomes "make xipImage" rather than
- "make zImage" or "make Image". The final kernel binary to put in
- ROM memory will be arch/arm/boot/xipImage.
- If unsure, say N.
- config XIP_PHYS_ADDR
- hex "XIP Kernel Physical Location"
- depends on XIP_KERNEL
- default "0x00080000"
- help
- This is the physical address in your flash memory the kernel will
- be linked for and stored to. This address is dependent on your
- own flash usage.
- endmenu
- if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP1)
- menu "CPU Frequency scaling"
- source "drivers/cpufreq/Kconfig"
- config CPU_FREQ_SA1100
- bool
- depends on CPU_FREQ && (SA1100_H3100 || SA1100_H3600 || SA1100_H3800 || SA1100_LART || SA1100_PLEB || SA1100_BADGE4 || SA1100_HACKKIT)
- default y
- config CPU_FREQ_SA1110
- bool
- depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
- default y
- config CPU_FREQ_INTEGRATOR
- tristate "CPUfreq driver for ARM Integrator CPUs"
- depends on ARCH_INTEGRATOR && CPU_FREQ
- default y
- help
- This enables the CPUfreq driver for ARM Integrator CPUs.
- For details, take a look at <file:Documentation/cpu-freq>.
- If in doubt, say Y.
- endmenu
- endif
- menu "Floating point emulation"
- comment "At least one emulation must be selected"
- config FPE_NWFPE
- bool "NWFPE math emulation"
- depends on !AEABI || OABI_COMPAT
- ---help---
- Say Y to include the NWFPE floating point emulator in the kernel.
- This is necessary to run most binaries. Linux does not currently
- support floating point hardware so you need to say Y here even if
- your machine has an FPA or floating point co-processor podule.
- You may say N here if you are going to load the Acorn FPEmulator
- early in the bootup.
- config FPE_NWFPE_XP
- bool "Support extended precision"
- depends on FPE_NWFPE
- help
- Say Y to include 80-bit support in the kernel floating-point
- emulator. Otherwise, only 32 and 64-bit support is compiled in.
- Note that gcc does not generate 80-bit operations by default,
- so in most cases this option only enlarges the size of the
- floating point emulator without any good reason.
- You almost surely want to say N here.
- config FPE_FASTFPE
- bool "FastFPE math emulation (EXPERIMENTAL)"
- depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
- ---help---
- Say Y here to include the FAST floating point emulator in the kernel.
- This is an experimental much faster emulator which now also has full
- precision for the mantissa. It does not support any exceptions.
- It is very simple, and approximately 3-6 times faster than NWFPE.
- It should be sufficient for most programs. It may be not suitable
- for scientific calculations, but you have to check this for yourself.
- If you do not feel you need a faster FP emulation you should better
- choose NWFPE.
- config VFP
- bool "VFP-format floating point maths"
- depends on CPU_V6 || CPU_ARM926T
- help
- Say Y to include VFP support code in the kernel. This is needed
- if your hardware includes a VFP unit.
- Please see <file:Documentation/arm/VFP/release-notes.txt> for
- release notes and additional status information.
- Say N if your target does not have VFP hardware.
- endmenu
- menu "Userspace binary formats"
- source "fs/Kconfig.binfmt"
- config ARTHUR
- tristate "RISC OS personality"
- depends on !AEABI
- help
- Say Y here to include the kernel code necessary if you want to run
- Acorn RISC OS/Arthur binaries under Linux. This code is still very
- experimental; if this sounds frightening, say N and sleep in peace.
- You can also say M here to compile this support as a module (which
- will be called arthur).
- endmenu
- menu "Power management options"
- source "kernel/power/Kconfig"
- config APM
- tristate "Advanced Power Management Emulation"
- ---help---
- APM is a BIOS specification for saving power using several different
- techniques. This is mostly useful for battery powered laptops with
- APM compliant BIOSes. If you say Y here, the system time will be
- reset after a RESUME operation, the /proc/apm device will provide
- battery status information, and user-space programs will receive
- notification of APM "events" (e.g. battery status change).
- In order to use APM, you will need supporting software. For location
- and more information, read <file:Documentation/pm.txt> and the
- Battery Powered Linux mini-HOWTO, available from
- <http://www.tldp.org/docs.html#howto>.
- This driver does not spin down disk drives (see the hdparm(8)
- manpage ("man 8 hdparm") for that), and it doesn't turn off
- VESA-compliant "green" monitors.
- Generally, if you don't have a battery in your machine, there isn't
- much point in using this driver and you should say N. If you get
- random kernel OOPSes or reboots that don't seem to be related to
- anything, try disabling/enabling this option (or disabling/enabling
- APM in your BIOS).
- endmenu
- source "net/Kconfig"
- menu "Device Drivers"
- source "drivers/base/Kconfig"
- source "drivers/connector/Kconfig"
- if ALIGNMENT_TRAP
- source "drivers/mtd/Kconfig"
- endif
- source "drivers/parport/Kconfig"
- source "drivers/pnp/Kconfig"
- source "drivers/block/Kconfig"
- source "drivers/acorn/block/Kconfig"
- if PCMCIA || ARCH_CLPS7500 || ARCH_IOP3XX || ARCH_IXP4XX \
- || ARCH_L7200 || ARCH_LH7A40X || ARCH_PXA || ARCH_RPC \
- || ARCH_S3C2410 || ARCH_SA1100 || ARCH_SHARK || FOOTBRIDGE \
- || ARCH_IXP23XX
- source "drivers/ide/Kconfig"
- endif
- source "drivers/scsi/Kconfig"
- source "drivers/md/Kconfig"
- source "drivers/message/fusion/Kconfig"
- source "drivers/ieee1394/Kconfig"
- source "drivers/message/i2o/Kconfig"
- source "drivers/net/Kconfig"
- source "drivers/isdn/Kconfig"
- # input before char - char/joystick depends on it. As does USB.
- source "drivers/input/Kconfig"
- source "drivers/char/Kconfig"
- source "drivers/i2c/Kconfig"
- source "drivers/spi/Kconfig"
- source "drivers/w1/Kconfig"
- source "drivers/hwmon/Kconfig"
- #source "drivers/l3/Kconfig"
- source "drivers/misc/Kconfig"
- source "drivers/mfd/Kconfig"
- source "drivers/leds/Kconfig"
- source "drivers/media/Kconfig"
- source "drivers/video/Kconfig"
- source "sound/Kconfig"
- source "drivers/usb/Kconfig"
- source "drivers/mmc/Kconfig"
- source "drivers/rtc/Kconfig"
- endmenu
- source "fs/Kconfig"
- source "arch/arm/oprofile/Kconfig"
- source "arch/arm/Kconfig.debug"
- source "security/Kconfig"
- source "crypto/Kconfig"
- source "lib/Kconfig"
|