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
+ 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
+ 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/>.
<file:Documentation/mca.txt> (and especially the web page given
there) before attempting to build an MCA bus kernel.
-config UID16
+config GENERIC_HARDIRQS
+ bool
+ default y
+
+config HARDIRQS_SW_RESEND
+ bool
+ default y
+
+config GENERIC_IRQ_PROBE
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 GENERIC_IOMAP
+config FIQ
bool
- default y
+
+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"
choice
prompt "ARM system type"
- default ARCH_RPC
+ default ARCH_VERSATILE
+
+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_INTEGRATOR
+ bool "ARM Ltd. Integrator family"
+ select ARM_AMBA
+ select ICST525
+ help
+ Support for ARM's Integrator platform.
+
+config ARCH_REALVIEW
+ bool "ARM Ltd. RealView family"
+ select ARM_AMBA
+ select ICST307
+ help
+ This enables support for ARM Ltd RealView boards.
+
+config ARCH_VERSATILE
+ bool "ARM Ltd. Versatile family"
+ select ARM_AMBA
+ select ARM_VIC
+ select ICST307
+ help
+ This enables support for ARM Ltd Versatile board.
+
+config ARCH_AT91
+ bool "Atmel AT91"
+ help
+ This enables support for systems based on the Atmel AT91RM9200
+ and AT91SAM9xxx processors.
config ARCH_CLPS7500
- bool "Cirrus-CL-PS7500FE"
+ 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"
+ bool "Cirrus Logic 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 onboard
+ from Digital. It has limited hardware on-board, including an
Ethernet interface, two PCMCIA sockets, two serial ports and a
parallel port.
-config ARCH_CAMELOT
- bool "Epxa10db"
+config ARCH_EP93XX
+ bool "EP93xx-based"
+ select ARM_AMBA
+ select ARM_VIC
help
- This enables support for Altera's Excalibur XA10 development board.
- If you would like to build your kernel to run on one of these boards
- then you must say 'Y' here. Otherwise say 'N'
+ 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"
+config ARCH_NETX
+ bool "Hilscher NetX based"
+ select ARM_VIC
+ help
+ This enables support for systems based on the Hilscher NetX Soc
+
+config ARCH_H720X
+ bool "Hynix HMS720x-based"
+ select ISA_DMA_API
+ help
+ This enables support for systems based on the Hynix HMS720x
+
+config ARCH_IMX
+ bool "IMX"
+ help
+ Support for Motorola's i.MX family of processors (MX1, MXL).
config ARCH_IOP3XX
bool "IOP3xx-based"
+ depends on MMU
+ select PCI
+ help
+ Support for Intel's IOP3XX (XScale) family of processors.
config ARCH_IXP4XX
bool "IXP4xx-based"
+ depends on MMU
+ help
+ Support for Intel's IXP4XX (XScale) family of processors.
config ARCH_IXP2000
bool "IXP2400/2800-based"
+ depends on MMU
+ select PCI
+ help
+ Support for Intel's IXP2400/2800 (XScale) family of processors.
+
+config ARCH_IXP23XX
+ bool "IXP23XX-based"
+ depends on MMU
+ 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.
<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.
+ to this board, send e-mail to <sjhill@cotw.com>.
+
+config ARCH_PNX4008
+ bool "Philips Nexperia PNX4008 Mobile"
+ help
+ This enables support for Philips PNX4008 mobile platform.
config ARCH_PXA
bool "PXA2xx-based"
+ depends on MMU
+ 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"
+ bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442"
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 derviatives).
+ 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"
config ARCH_OMAP
bool "TI OMAP"
-
-config ARCH_VERSATILE_PB
- bool "Versatile PB"
- help
- This enables support for ARM Ltd Versatile PB board.
-
-config ARCH_IMX
- bool "IMX"
-
-config ARCH_H720X
- bool "Hynix-HMS720x-based"
help
- This enables support for systems based on the Hynix HMS720x
+ Support for TI's OMAP platform (OMAP1 and OMAP2).
endchoice
source "arch/arm/mach-clps711x/Kconfig"
-source "arch/arm/mach-epxa10db/Kconfig"
+source "arch/arm/mach-ep93xx/Kconfig"
source "arch/arm/mach-footbridge/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/mach-omap/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-h720x/Kconfig"
-# Definitions to make life easier
-config ARCH_ACORN
- bool
- depends on ARCH_RPC
- default y
+source "arch/arm/mach-versatile/Kconfig"
-config TIMER_ACORN
- bool
- depends on ARCH_ACORN || ARCH_CLPS7500
- default y
+source "arch/arm/mach-aaec2000/Kconfig"
-#####################################################################
-# Footbridge support
-config FOOTBRIDGE
- bool
- depends on ARCH_CO285 || ARCH_FOOTBRIDGE
- default y
+source "arch/arm/mach-realview/Kconfig"
-config FOOTBRIDGE_HOST
- bool
- depends on ARCH_CATS || ARCH_EBSA285_HOST || ARCH_NETWINDER || ARCH_PERSONAL_SERVER
- default y
+source "arch/arm/mach-at91rm9200/Kconfig"
-config FOOTBRIDGE_ADDIN
- bool
- depends on ARCH_CO285 || ARCH_EBSA285_ADDIN
- default y
+source "arch/arm/mach-netx/Kconfig"
-config ARCH_EBSA285
+# Definitions to make life easier
+config ARCH_ACORN
bool
- depends on ARCH_EBSA285_HOST || ARCH_EBSA285_ADDIN
- default y
-#####################################################################
-# SA1111 support
-config SA1111
- bool
- depends on ASSABET_NEPONSET || SA1100_ADSBITSY || SA1100_BADGE4 || SA1100_CONSUS || SA1100_GRAPHICSMASTER || SA1100_JORNADA720 || ARCH_LUBBOCK || SA1100_PFS168 || SA1100_PT_SYSTEM3 || SA1100_XP860
- default y
+source arch/arm/mm/Kconfig
-config SHARP_LOCOMO
+# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
+config XSCALE_PMU
bool
- depends on SA1100_COLLIE
+ depends on CPU_XSCALE && !XSCALE_PMU_TIMER
default y
+if !MMU
+source "arch/arm/Kconfig-nommu"
+endif
+
+endmenu
+
+source "arch/arm/common/Kconfig"
+
config FORCE_MAX_ZONEORDER
int
depends on SA1111
default "9"
-config DMABOUNCE
- bool
- depends on SA1111 || ARCH_IXP4XX
- default y
-
-source arch/arm/mm/Kconfig
+menu "Bus support"
-# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
-config XSCALE_PMU
+config ARM_AMBA
bool
- depends on CPU_XSCALE && !XSCALE_PMU_TIMER
- default y
-endmenu
+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.
-menu "General setup"
+# Select ISA DMA controller support
+config ISA_DMA
+ bool
+ select ISA_DMA_API
-# Select various configuration options depending on the machine type
-config DISCONTIGMEM
+# Select ISA DMA interface
+config ISA_DMA_API
bool
- depends on ARCH_EDB7211 || ARCH_SA1100 || (ARCH_LH7A40X && !LH7A40X_CONTIGMEM)
- default y
- 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.
-# Now handle the bus types
config PCI
- bool "PCI support" if ARCH_INTEGRATOR_AP
- default y if ARCH_SHARK || FOOTBRIDGE_HOST || ARCH_IOP3XX || ARCH_IXP4XX || ARCH_IXP2000
+ bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX
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
depends on PCI && ARCH_SHARK
default y
-config ICST525
- bool
- depends on ARCH_INTEGRATOR
- default y
+source "drivers/pci/Kconfig"
-config ARM_AMBA
- bool
- depends on ARCH_INTEGRATOR || ARCH_VERSATILE_PB
- default y
+source "drivers/pcmcia/Kconfig"
-config ISA
- bool
- depends on FOOTBRIDGE_HOST || ARCH_SHARK || ARCH_CLPS7500 || ARCH_EBSA110 || ARCH_CDB89712 || ARCH_EDB7211 || ARCH_SA1100 || ARCH_MX1ADS
+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
- 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.
+ 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 ISA_DMA
- bool
- depends on FOOTBRIDGE_HOST || ARCH_SHARK
+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 FIQ
+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 || MACH_TRIZEPS4
+ 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
- depends on ARCH_ACORN || ARCH_L7200 || ARCH_LH7A400
- default y
+ 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
- bool "Compressed boot loader in ROM/flash"
- help
- Say Y here if you intend to execute your compressed kernel image (zImage)
- directly from ROM or flash. If unsure, say N.
-
config ZBOOT_ROM_TEXT
hex "Compressed ROM boot loader base address"
default "0"
help
- The base address for zImage. Unless you have special requirements, you
- should not change this value.
+ 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, which must be available
- while the decompressor is running. Unless you have special requirements,
- you should not change this value.
+ 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 CPU_FREQ
- bool "Support CPU clock change (EXPERIMENTAL)"
- depends on (ARCH_SA1100 || ARCH_INTEGRATOR) && EXPERIMENTAL
+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
- CPU clock scaling allows you to change the clock speed of the
- running CPU on the fly. This is a nice method to save battery power,
- because the lower the clock speed, the less power the CPU
- consumes. Note that this driver doesn't automatically change the CPU
- clock speed, you need some userland tools (which still have to be
- written) to implement the policy. If you don't understand what this
- is all about, it's safe to say 'N'.
+ 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_OMAP)
+menu "CPU Frequency scaling"
-# CPUfreq on SA11x0 is special -- it _needs_ the userspace governor
+source "drivers/cpufreq/Kconfig"
config CPU_FREQ_SA1100
bool
- depends on CPU_FREQ && SA1100_LART
+ depends on CPU_FREQ && (SA1100_H3100 || SA1100_H3600 || SA1100_H3800 || SA1100_LART || SA1100_PLEB || SA1100_BADGE4 || SA1100_HACKKIT)
default y
- select CPU_FREQ_24_API if SYSCTL
config CPU_FREQ_SA1110
bool
depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
default y
- select CPU_FREQ_24_API if SYSCTL
config CPU_FREQ_INTEGRATOR
tristate "CPUfreq driver for ARM Integrator CPUs"
- depends on ARCH_INTEGRATOR && ICST525 && CPU_FREQ
+ depends on ARCH_INTEGRATOR && CPU_FREQ
default y
help
This enables the CPUfreq driver for ARM Integrator CPUs.
If in doubt, say Y.
-if (CPU_FREQ_INTEGRATOR) || (CPU_FREQ_SA1110) || (CPU_FREQ_SA1100)
-
-source "drivers/cpufreq/Kconfig"
+endmenu
endif
-source "drivers/pci/Kconfig"
-
-source "drivers/pcmcia/Kconfig"
+menu "Floating point emulation"
-comment "At least one math emulation must be selected"
+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
config FPE_NWFPE_XP
bool "Support extended precision"
- depends on FPE_NWFPE && !CPU_BIG_ENDIAN
+ 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.
config FPE_FASTFPE
bool "FastFPE math emulation (EXPERIMENTAL)"
- depends on !CPU_32v3 && 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
Say N if your target does not have VFP hardware.
-source "fs/Kconfig.binfmt"
-
-source "drivers/base/Kconfig"
+endmenu
-config PM
- bool "Power Management support"
- ---help---
- "Power Management" means that parts of your computer are shut
- off or put into a power conserving "sleep" mode if they are not
- being used. There are two competing standards for doing this: APM
- and ACPI. If you want to use either one, say Y here and then also
- to the requisite support below.
-
- Power Management is most important for battery powered laptop
- computers; if you have a laptop, check out the Linux Laptop home
- page on the WWW at <http://www.linux-on-laptops.com/> or
- Tuxmobil - Linux on Mobile Computers at <http://www.tuxmobil.org/>
- and the Battery Powered Linux mini-HOWTO, available from
- <http://www.tldp.org/docs.html#howto>.
+menu "Userspace binary formats"
- Note that, even if you say N here, Linux on the x86 architecture
- will issue the hlt instruction if nothing is to be done, thereby
- sending the processor to sleep and saving power.
+source "fs/Kconfig.binfmt"
-config PREEMPT
- bool "Preemptible Kernel (EXPERIMENTAL)"
- depends on CPU_32 && EXPERIMENTAL
+config ARTHUR
+ tristate "RISC OS personality"
+ depends on !AEABI
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 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).
- Say Y here if you are building a kernel for a desktop, embedded
- or real-time system. Say N if you are unsure.
+endmenu
+
+menu "Power management options"
+
+source "kernel/power/Kconfig"
config APM
tristate "Advanced Power Management Emulation"
- depends on PM
---help---
APM is a BIOS specification for saving power using several different
techniques. This is mostly useful for battery powered laptops with
battery status information, and user-space programs will receive
notification of APM "events" (e.g. battery status change).
- If you select "Y" here, you can disable actual use of the APM
- BIOS by passing the "apm=off" option to the kernel at boot time.
-
- Note that the APM support is almost completely disabled for
- machines with more than one CPU.
-
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
manpage ("man 8 hdparm") for that), and it doesn't turn off
VESA-compliant "green" monitors.
- This driver does not support the TI 4000M TravelMate and the ACER
- 486/DX4/75 because they don't have compliant BIOSes. Many "green"
- desktop machines also don't have compliant BIOSes, and this driver
- may cause those machines to panic during the boot phase.
-
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).
- Some other things you should try when experiencing seemingly random,
- "weird" problems:
-
- 1) make sure that you have enough swap space and that it is
- enabled.
- 2) pass the "no-hlt" option to the kernel
- 3) switch on floating point emulation in the kernel and pass
- the "no387" option to the kernel
- 4) pass the "floppy=nodma" option to the kernel
- 5) pass the "mem=4M" option to the kernel (thereby disabling
- all but the first 4 MB of RAM)
- 6) make sure that the CPU is not over clocked.
- 7) read the sig11 FAQ at <http://www.bitwizard.nl/sig11/>
- 8) disable the cache from your BIOS settings
- 9) install a fan for the video card or exchange video RAM
- 10) install a better fan for the CPU
- 11) exchange RAM chips
- 12) exchange the motherboard.
-
- To compile this driver as a module, choose M here: the
- module will be called apm.
-
-config ARTHUR
- tristate "RISC OS personality"
- depends on CPU_32
- 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).
-
-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 LEDS
- bool "Timer and CPU usage LEDs"
- depends on ARCH_NETWINDER || ARCH_EBSA110 || ARCH_EBSA285 || ARCH_SHARK || ARCH_CO285 || ARCH_SA1100 || ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_PXA_IDP || ARCH_INTEGRATOR || ARCH_CDB89712 || ARCH_P720T || ARCH_OMAP || ARCH_VERSATILE_PB || ARCH_IMX
- 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 LEDS && (ARCH_NETWINDER || ARCH_EBSA285 || ARCH_SHARK || MACH_MAINSTONE || ARCH_CO285 || ARCH_SA1100 || ARCH_LUBBOCK || ARCH_PXA_IDP || ARCH_INTEGRATOR || ARCH_P720T || ARCH_VERSATILE_PB || ARCH_IMX)
- depends on ARCH_NETWINDER || ARCH_EBSA110 || ARCH_EBSA285 || ARCH_SHARK || ARCH_CO285 || ARCH_SA1100 || ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_PXA_IDP || ARCH_INTEGRATOR || ARCH_CDB89712 || ARCH_P720T || ARCH_OMAP || ARCH_VERSATILE_PB || ARCH_IMX
- 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"
- depends on LEDS && (ARCH_NETWINDER || ARCH_EBSA285 || ARCH_SHARK || ARCH_CO285 || ARCH_SA1100 || ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_PXA_IDP || ARCH_INTEGRATOR || ARCH_P720T || ARCH_VERSATILE_PB || ARCH_IMX)
- 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.
+endmenu
- 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.
+source "net/Kconfig"
-config ALIGNMENT_TRAP
- bool
- depends on CPU_32
- 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.
+menu "Device Drivers"
-endmenu
+source "drivers/base/Kconfig"
-source "drivers/parport/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/md/Kconfig"
-
source "drivers/acorn/block/Kconfig"
-source "net/Kconfig"
-
-if ARCH_CLPS7500 || ARCH_IOP3XX || ARCH_IXP4XX || ARCH_L7200 || ARCH_LH7A40X || ARCH_PXA || ARCH_RPC || ARCH_S3C2410 || ARCH_SA1100 || ARCH_SHARK || FOOTBRIDGE
+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/media/Kconfig"
+source "drivers/misc/Kconfig"
-source "fs/Kconfig"
+source "drivers/mfd/Kconfig"
-source "arch/arm/oprofile/Kconfig"
+source "drivers/leds/Kconfig"
+
+source "drivers/media/Kconfig"
source "drivers/video/Kconfig"
source "sound/Kconfig"
-source "drivers/misc/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 "kernel/vserver/Kconfig"
git://git.onelab.eu / linux-2.6.git / blobdiff