2 # For a description of the syntax of this configuration file,
3 # see Documentation/kbuild/kconfig-language.txt.
6 mainmenu "Linux Kernel Configuration"
12 select SYS_SUPPORTS_APM_EMULATION
14 select HAVE_KPROBES if (!XIP_KERNEL)
16 The ARM series is a line of low-power-consumption RISC chip designs
17 licensed by ARM Ltd and targeted at embedded applications and
18 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
19 manufactured, but legacy ARM-based PC hardware remains popular in
20 Europe. There is an ARM Linux project with a web page at
21 <http://www.arm.linux.org.uk/>.
23 config SYS_SUPPORTS_APM_EMULATION
34 config GENERIC_CLOCKEVENTS
38 config GENERIC_CLOCKEVENTS_BROADCAST
40 depends on GENERIC_CLOCKEVENTS
41 default y if SMP && !LOCAL_TIMERS
54 The Extended Industry Standard Architecture (EISA) bus was
55 developed as an open alternative to the IBM MicroChannel bus.
57 The EISA bus provided some of the features of the IBM MicroChannel
58 bus while maintaining backward compatibility with cards made for
59 the older ISA bus. The EISA bus saw limited use between 1988 and
60 1995 when it was made obsolete by the PCI bus.
62 Say Y here if you are building a kernel for an EISA-based machine.
72 MicroChannel Architecture is found in some IBM PS/2 machines and
73 laptops. It is a bus system similar to PCI or ISA. See
74 <file:Documentation/mca.txt> (and especially the web page given
75 there) before attempting to build an MCA bus kernel.
77 config GENERIC_HARDIRQS
81 config STACKTRACE_SUPPORT
85 config LOCKDEP_SUPPORT
89 config TRACE_IRQFLAGS_SUPPORT
93 config HARDIRQS_SW_RESEND
97 config GENERIC_IRQ_PROBE
101 config GENERIC_LOCKBREAK
104 depends on SMP && PREEMPT
106 config RWSEM_GENERIC_SPINLOCK
110 config RWSEM_XCHGADD_ALGORITHM
113 config ARCH_HAS_ILOG2_U32
117 config ARCH_HAS_ILOG2_U64
121 config GENERIC_HWEIGHT
125 config GENERIC_CALIBRATE_DELAY
129 config ARCH_MAY_HAVE_PC_FDC
136 config GENERIC_ISA_DMA
147 config OPROFILE_ARMV6
149 depends on CPU_V6 && !SMP
150 select OPROFILE_ARM11_CORE
152 config OPROFILE_MPCORE
154 depends on CPU_V6 && SMP
155 select OPROFILE_ARM11_CORE
157 config OPROFILE_ARM11_CORE
164 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
165 default DRAM_BASE if REMAP_VECTORS_TO_RAM
168 The base address of exception vectors.
170 source "init/Kconfig"
175 prompt "ARM system type"
176 default ARCH_VERSATILE
179 bool "Agilent AAEC-2000 based"
182 This enables support for systems based on the Agilent AAEC-2000
184 config ARCH_INTEGRATOR
185 bool "ARM Ltd. Integrator family"
189 Support for ARM's Integrator platform.
192 bool "ARM Ltd. RealView family"
196 select GENERIC_CLOCKEVENTS
198 This enables support for ARM Ltd RealView boards.
200 config ARCH_VERSATILE
201 bool "ARM Ltd. Versatile family"
206 select GENERIC_CLOCKEVENTS
208 This enables support for ARM Ltd Versatile board.
214 This enables support for systems based on the Atmel AT91RM9200,
215 AT91SAM9 and AT91CAP9 processors.
218 bool "Cirrus CL-PS7500FE"
223 Support for the Cirrus Logic PS7500FE system-on-a-chip.
226 bool "Cirrus Logic CLPS711x/EP721x-based"
228 Support for Cirrus Logic 711x/721x based boards.
233 select FOOTBRIDGE_ADDIN
235 Support for Intel's EBSA285 companion chip.
242 This is an evaluation board for the StrongARM processor available
243 from Digital. It has limited hardware on-board, including an
244 Ethernet interface, two PCMCIA sockets, two serial ports and a
253 This enables support for the Cirrus EP93xx series of CPUs.
255 config ARCH_FOOTBRIDGE
259 Support for systems based on the DC21285 companion chip
260 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
263 bool "Hilscher NetX based"
266 This enables support for systems based on the Hilscher NetX Soc
269 bool "Hynix HMS720x-based"
272 This enables support for systems based on the Hynix HMS720x
278 select GENERIC_CLOCKEVENTS
280 Support for Motorola's i.MX family of processors (MX1, MXL).
287 select ARCH_SUPPORTS_MSI
289 Support for Intel's IOP13XX (XScale) family of processors.
297 Support for Intel's 80219 and IOP32X (XScale) family of
306 Support for Intel's IOP33X (XScale) family of processors.
313 Support for Intel's IXP23xx (XScale) family of processors.
316 bool "IXP2400/2800-based"
320 Support for Intel's IXP2400/2800 (XScale) family of processors.
327 select GENERIC_CLOCKEVENTS
329 Support for Intel's IXP4XX (XScale) family of processors.
335 Say Y here if you intend to run this kernel on a LinkUp Systems
336 L7200 Software Development Board which uses an ARM720T processor.
337 Information on this board can be obtained at:
339 <http://www.linkupsys.com/>
341 If you have any questions or comments about the Linux kernel port
342 to this board, send e-mail to <sjhill@cotw.com>.
345 bool "Micrel/Kendin KS8695"
348 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
349 System-on-Chip devices.
352 bool "NetSilicon NS9xxx"
355 select GENERIC_CLOCKEVENTS
357 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
360 <http://www.digi.com/products/microprocessors/index.jsp>
363 bool "Freescale MXC/iMX-based"
366 Support for Freescale MXC/iMX-based family of processors
374 select GENERIC_CLOCKEVENTS
376 Support for Marvell Orion System on Chip family.
379 bool "Philips Nexperia PNX4008 Mobile"
381 This enables support for Philips PNX4008 mobile platform.
384 bool "PXA2xx/PXA3xx-based"
390 select GENERIC_CLOCKEVENTS
393 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
400 select ARCH_MAY_HAVE_PC_FDC
404 On the Acorn Risc-PC, Linux can support the internal IDE disk and
405 CD-ROM interface, serial and parallel port, and the floppy drive.
410 select ARCH_DISCONTIGMEM_ENABLE
415 Support for StrongARM 11x0 based boards.
418 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
421 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
422 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
423 the Samsung SMDK2410 development board (and derivatives).
431 Support for the StrongARM based Digital DNARD machine, also known
432 as "Shark" (<http://www.shark-linux.de/shark.html>).
437 Say Y here for systems based on one of the Sharp LH7A40X
438 System on a Chip processors. These CPUs include an ARM922T
439 core with a wide array of integrated devices for
440 hand-held and low-power applications.
445 select GENERIC_CLOCKEVENTS
448 Support for TI's DaVinci platform.
455 Support for TI's OMAP platform (OMAP1 and OMAP2).
458 bool "Qualcomm MSM7X00A"
460 select GENERIC_CLOCKEVENTS
462 Support for Qualcomm MSM7X00A based systems. This runs on the ARM11
463 apps processor of the MSM7X00A and depends on a shared memory
464 interface to the ARM9 modem processor which runs the baseband stack
465 and controls some vital subsystems (clock and power control, etc).
466 <http://www.cdmatech.com/products/msm7200_chipset_solution.jsp>
470 source "arch/arm/mach-clps711x/Kconfig"
472 source "arch/arm/mach-ep93xx/Kconfig"
474 source "arch/arm/mach-footbridge/Kconfig"
476 source "arch/arm/mach-integrator/Kconfig"
478 source "arch/arm/mach-iop32x/Kconfig"
480 source "arch/arm/mach-iop33x/Kconfig"
482 source "arch/arm/mach-iop13xx/Kconfig"
484 source "arch/arm/mach-ixp4xx/Kconfig"
486 source "arch/arm/mach-ixp2000/Kconfig"
488 source "arch/arm/mach-ixp23xx/Kconfig"
490 source "arch/arm/mach-pxa/Kconfig"
492 source "arch/arm/mach-sa1100/Kconfig"
494 source "arch/arm/plat-omap/Kconfig"
496 source "arch/arm/mach-omap1/Kconfig"
498 source "arch/arm/mach-omap2/Kconfig"
500 source "arch/arm/mach-orion/Kconfig"
502 source "arch/arm/plat-s3c24xx/Kconfig"
503 source "arch/arm/plat-s3c/Kconfig"
506 source "arch/arm/mach-s3c2400/Kconfig"
507 source "arch/arm/mach-s3c2410/Kconfig"
508 source "arch/arm/mach-s3c2412/Kconfig"
509 source "arch/arm/mach-s3c2440/Kconfig"
510 source "arch/arm/mach-s3c2442/Kconfig"
511 source "arch/arm/mach-s3c2443/Kconfig"
514 source "arch/arm/mach-lh7a40x/Kconfig"
516 source "arch/arm/mach-imx/Kconfig"
518 source "arch/arm/mach-h720x/Kconfig"
520 source "arch/arm/mach-versatile/Kconfig"
522 source "arch/arm/mach-aaec2000/Kconfig"
524 source "arch/arm/mach-realview/Kconfig"
526 source "arch/arm/mach-at91/Kconfig"
528 source "arch/arm/plat-mxc/Kconfig"
530 source "arch/arm/mach-netx/Kconfig"
532 source "arch/arm/mach-ns9xxx/Kconfig"
534 source "arch/arm/mach-davinci/Kconfig"
536 source "arch/arm/mach-ks8695/Kconfig"
538 source "arch/arm/mach-msm/Kconfig"
540 # Definitions to make life easier
547 source arch/arm/mm/Kconfig
550 bool "Enable iWMMXt support"
551 depends on CPU_XSCALE || CPU_XSC3
552 default y if PXA27x || PXA3xx
554 Enable support for iWMMXt context switching at run time if
555 running on a CPU that supports it.
557 # bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
560 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
564 source "arch/arm/Kconfig-nommu"
569 source "arch/arm/common/Kconfig"
571 config FORCE_MAX_ZONEORDER
584 Find out whether you have ISA slots on your motherboard. ISA is the
585 name of a bus system, i.e. the way the CPU talks to the other stuff
586 inside your box. Other bus systems are PCI, EISA, MicroChannel
587 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
588 newer boards don't support it. If you have ISA, say Y, otherwise N.
590 # Select ISA DMA controller support
595 # Select ISA DMA interface
600 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
602 Find out whether you have a PCI motherboard. PCI is the name of a
603 bus system, i.e. the way the CPU talks to the other stuff inside
604 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
605 VESA. If you have PCI, say Y, otherwise N.
610 # Select the host bridge type
611 config PCI_HOST_VIA82C505
613 depends on PCI && ARCH_SHARK
616 config PCI_HOST_ITE8152
618 depends on PCI && MACH_ARMCORE
622 source "drivers/pci/Kconfig"
624 source "drivers/pcmcia/Kconfig"
628 menu "Kernel Features"
630 source "kernel/time/Kconfig"
633 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
634 depends on EXPERIMENTAL && REALVIEW_EB_ARM11MP
636 This enables support for systems with more than one CPU. If you have
637 a system with only one CPU, like most personal computers, say N. If
638 you have a system with more than one CPU, say Y.
640 If you say N here, the kernel will run on single and multiprocessor
641 machines, but will use only one CPU of a multiprocessor machine. If
642 you say Y here, the kernel will run on many, but not all, single
643 processor machines. On a single processor machine, the kernel will
644 run faster if you say N here.
646 See also <file:Documentation/i386/IO-APIC.txt>,
647 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
648 <http://www.linuxdoc.org/docs.html#howto>.
650 If you don't know what to do here, say N.
653 int "Maximum number of CPUs (2-32)"
659 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
660 depends on SMP && HOTPLUG && EXPERIMENTAL
662 Say Y here to experiment with turning CPUs off and on. CPUs
663 can be controlled through /sys/devices/system/cpu.
666 bool "Use local timer interrupts"
667 depends on SMP && REALVIEW_EB_ARM11MP
670 Enable support for local timers on SMP platforms, rather then the
671 legacy IPI broadcast method. Local timers allows the system
672 accounting to be spread across the timer interval, preventing a
673 "thundering herd" at every timer tick.
676 bool "Preemptible Kernel (EXPERIMENTAL)"
677 depends on EXPERIMENTAL
679 This option reduces the latency of the kernel when reacting to
680 real-time or interactive events by allowing a low priority process to
681 be preempted even if it is in kernel mode executing a system call.
682 This allows applications to run more reliably even when the system is
685 Say Y here if you are building a kernel for a desktop, embedded
686 or real-time system. Say N if you are unsure.
689 bool "Dynamic tick timer"
690 depends on !GENERIC_CLOCKEVENTS
692 Select this option if you want to disable continuous timer ticks
693 and have them programmed to occur as required. This option saves
694 power as the system can remain in idle state for longer.
696 By default dynamic tick is disabled during the boot, and can be
697 manually enabled with:
699 echo 1 > /sys/devices/system/timer/timer0/dyn_tick
701 Alternatively, if you want dynamic tick automatically enabled
702 during boot, pass "dyntick=enable" via the kernel command string.
704 Please note that dynamic tick may affect the accuracy of
705 timekeeping on some platforms depending on the implementation.
706 Currently at least OMAP, PXA2xx and SA11x0 platforms are known
707 to have accurate timekeeping with dynamic tick.
711 default 128 if ARCH_L7200
712 default 200 if ARCH_EBSA110 || ARCH_S3C2410
713 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
714 default AT91_TIMER_HZ if ARCH_AT91
718 bool "Use the ARM EABI to compile the kernel"
720 This option allows for the kernel to be compiled using the latest
721 ARM ABI (aka EABI). This is only useful if you are using a user
722 space environment that is also compiled with EABI.
724 Since there are major incompatibilities between the legacy ABI and
725 EABI, especially with regard to structure member alignment, this
726 option also changes the kernel syscall calling convention to
727 disambiguate both ABIs and allow for backward compatibility support
728 (selected with CONFIG_OABI_COMPAT).
730 To use this you need GCC version 4.0.0 or later.
733 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
734 depends on AEABI && EXPERIMENTAL
737 This option preserves the old syscall interface along with the
738 new (ARM EABI) one. It also provides a compatibility layer to
739 intercept syscalls that have structure arguments which layout
740 in memory differs between the legacy ABI and the new ARM EABI
741 (only for non "thumb" binaries). This option adds a tiny
742 overhead to all syscalls and produces a slightly larger kernel.
743 If you know you'll be using only pure EABI user space then you
744 can say N here. If this option is not selected and you attempt
745 to execute a legacy ABI binary then the result will be
746 UNPREDICTABLE (in fact it can be predicted that it won't work
747 at all). If in doubt say Y.
749 config ARCH_DISCONTIGMEM_ENABLE
751 default (ARCH_LH7A40X && !LH7A40X_CONTIGMEM)
753 Say Y to support efficient handling of discontiguous physical memory,
754 for architectures which are either NUMA (Non-Uniform Memory Access)
755 or have huge holes in the physical address space for other reasons.
756 See <file:Documentation/vm/numa> for more.
760 default "4" if ARCH_LH7A40X
762 depends on NEED_MULTIPLE_NODES
767 bool "Timer and CPU usage LEDs"
768 depends on ARCH_CDB89712 || ARCH_CO285 || ARCH_EBSA110 || \
769 ARCH_EBSA285 || ARCH_IMX || ARCH_INTEGRATOR || \
770 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
771 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
772 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
773 ARCH_AT91 || MACH_TRIZEPS4 || ARCH_DAVINCI || \
774 ARCH_KS8695 || MACH_RD88F5182
776 If you say Y here, the LEDs on your machine will be used
777 to provide useful information about your current system status.
779 If you are compiling a kernel for a NetWinder or EBSA-285, you will
780 be able to select which LEDs are active using the options below. If
781 you are compiling a kernel for the EBSA-110 or the LART however, the
782 red LED will simply flash regularly to indicate that the system is
783 still functional. It is safe to say Y here if you have a CATS
784 system, but the driver will do nothing.
787 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
788 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
789 || MACH_OMAP_PERSEUS2
791 depends on !GENERIC_CLOCKEVENTS
792 default y if ARCH_EBSA110
794 If you say Y here, one of the system LEDs (the green one on the
795 NetWinder, the amber one on the EBSA285, or the red one on the LART)
796 will flash regularly to indicate that the system is still
797 operational. This is mainly useful to kernel hackers who are
798 debugging unstable kernels.
800 The LART uses the same LED for both Timer LED and CPU usage LED
801 functions. You may choose to use both, but the Timer LED function
802 will overrule the CPU usage LED.
805 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
807 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
808 || MACH_OMAP_PERSEUS2
811 If you say Y here, the red LED will be used to give a good real
812 time indication of CPU usage, by lighting whenever the idle task
813 is not currently executing.
815 The LART uses the same LED for both Timer LED and CPU usage LED
816 functions. You may choose to use both, but the Timer LED function
817 will overrule the CPU usage LED.
819 config ALIGNMENT_TRAP
821 depends on CPU_CP15_MMU
822 default y if !ARCH_EBSA110
824 ARM processors cannot fetch/store information which is not
825 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
826 address divisible by 4. On 32-bit ARM processors, these non-aligned
827 fetch/store instructions will be emulated in software if you say
828 here, which has a severe performance impact. This is necessary for
829 correct operation of some network protocols. With an IP-only
830 configuration it is safe to say N, otherwise say Y.
836 # Compressed boot loader in ROM. Yes, we really want to ask about
837 # TEXT and BSS so we preserve their values in the config files.
838 config ZBOOT_ROM_TEXT
839 hex "Compressed ROM boot loader base address"
842 The physical address at which the ROM-able zImage is to be
843 placed in the target. Platforms which normally make use of
844 ROM-able zImage formats normally set this to a suitable
845 value in their defconfig file.
847 If ZBOOT_ROM is not enabled, this has no effect.
850 hex "Compressed ROM boot loader BSS address"
853 The base address of an area of read/write memory in the target
854 for the ROM-able zImage which must be available while the
855 decompressor is running. It must be large enough to hold the
856 entire decompressed kernel plus an additional 128 KiB.
857 Platforms which normally make use of ROM-able zImage formats
858 normally set this to a suitable value in their defconfig file.
860 If ZBOOT_ROM is not enabled, this has no effect.
863 bool "Compressed boot loader in ROM/flash"
864 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
866 Say Y here if you intend to execute your compressed kernel image
867 (zImage) directly from ROM or flash. If unsure, say N.
870 string "Default kernel command string"
873 On some architectures (EBSA110 and CATS), there is currently no way
874 for the boot loader to pass arguments to the kernel. For these
875 architectures, you should supply some command-line options at build
876 time by entering them here. As a minimum, you should specify the
877 memory size and the root device (e.g., mem=64M root=/dev/nfs).
880 bool "Kernel Execute-In-Place from ROM"
881 depends on !ZBOOT_ROM
883 Execute-In-Place allows the kernel to run from non-volatile storage
884 directly addressable by the CPU, such as NOR flash. This saves RAM
885 space since the text section of the kernel is not loaded from flash
886 to RAM. Read-write sections, such as the data section and stack,
887 are still copied to RAM. The XIP kernel is not compressed since
888 it has to run directly from flash, so it will take more space to
889 store it. The flash address used to link the kernel object files,
890 and for storing it, is configuration dependent. Therefore, if you
891 say Y here, you must know the proper physical address where to
892 store the kernel image depending on your own flash memory usage.
894 Also note that the make target becomes "make xipImage" rather than
895 "make zImage" or "make Image". The final kernel binary to put in
896 ROM memory will be arch/arm/boot/xipImage.
901 hex "XIP Kernel Physical Location"
902 depends on XIP_KERNEL
905 This is the physical address in your flash memory the kernel will
906 be linked for and stored to. This address is dependent on your
910 bool "Kexec system call (EXPERIMENTAL)"
911 depends on EXPERIMENTAL
913 kexec is a system call that implements the ability to shutdown your
914 current kernel, and to start another kernel. It is like a reboot
915 but it is independent of the system firmware. And like a reboot
916 you can start any kernel with it, not just Linux.
918 It is an ongoing process to be certain the hardware in a machine
919 is properly shutdown, so do not be surprised if this code does not
920 initially work for you. It may help to enable device hotplugging
924 bool "Export atags in procfs"
927 Should the atags used to boot the kernel be exported in an "atags"
928 file in procfs. Useful with kexec.
932 if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX || ARCH_PXA)
934 menu "CPU Frequency scaling"
936 source "drivers/cpufreq/Kconfig"
938 config CPU_FREQ_SA1100
940 depends on CPU_FREQ && (SA1100_H3100 || SA1100_H3600 || SA1100_H3800 || SA1100_LART || SA1100_PLEB || SA1100_BADGE4 || SA1100_HACKKIT)
943 config CPU_FREQ_SA1110
945 depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
948 config CPU_FREQ_INTEGRATOR
949 tristate "CPUfreq driver for ARM Integrator CPUs"
950 depends on ARCH_INTEGRATOR && CPU_FREQ
953 This enables the CPUfreq driver for ARM Integrator CPUs.
955 For details, take a look at <file:Documentation/cpu-freq>.
960 tristate "CPUfreq driver for i.MX CPUs"
961 depends on ARCH_IMX && CPU_FREQ
964 This enables the CPUfreq driver for i.MX CPUs.
970 depends on CPU_FREQ && ARCH_PXA && PXA25x
972 select CPU_FREQ_DEFAULT_GOV_USERSPACE
978 menu "Floating point emulation"
980 comment "At least one emulation must be selected"
983 bool "NWFPE math emulation"
984 depends on !AEABI || OABI_COMPAT
986 Say Y to include the NWFPE floating point emulator in the kernel.
987 This is necessary to run most binaries. Linux does not currently
988 support floating point hardware so you need to say Y here even if
989 your machine has an FPA or floating point co-processor podule.
991 You may say N here if you are going to load the Acorn FPEmulator
995 bool "Support extended precision"
998 Say Y to include 80-bit support in the kernel floating-point
999 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1000 Note that gcc does not generate 80-bit operations by default,
1001 so in most cases this option only enlarges the size of the
1002 floating point emulator without any good reason.
1004 You almost surely want to say N here.
1007 bool "FastFPE math emulation (EXPERIMENTAL)"
1008 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
1010 Say Y here to include the FAST floating point emulator in the kernel.
1011 This is an experimental much faster emulator which now also has full
1012 precision for the mantissa. It does not support any exceptions.
1013 It is very simple, and approximately 3-6 times faster than NWFPE.
1015 It should be sufficient for most programs. It may be not suitable
1016 for scientific calculations, but you have to check this for yourself.
1017 If you do not feel you need a faster FP emulation you should better
1021 bool "VFP-format floating point maths"
1022 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
1024 Say Y to include VFP support code in the kernel. This is needed
1025 if your hardware includes a VFP unit.
1027 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1028 release notes and additional status information.
1030 Say N if your target does not have VFP hardware.
1038 bool "Advanced SIMD (NEON) Extension support"
1039 depends on VFPv3 && CPU_V7
1041 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1046 menu "Userspace binary formats"
1048 source "fs/Kconfig.binfmt"
1051 tristate "RISC OS personality"
1054 Say Y here to include the kernel code necessary if you want to run
1055 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1056 experimental; if this sounds frightening, say N and sleep in peace.
1057 You can also say M here to compile this support as a module (which
1058 will be called arthur).
1062 menu "Power management options"
1064 source "kernel/power/Kconfig"
1066 config ARCH_SUSPEND_POSSIBLE
1071 source "net/Kconfig"
1073 menu "Device Drivers"
1075 source "drivers/base/Kconfig"
1077 source "drivers/connector/Kconfig"
1079 if ALIGNMENT_TRAP || !CPU_CP15_MMU
1080 source "drivers/mtd/Kconfig"
1083 source "drivers/parport/Kconfig"
1085 source "drivers/pnp/Kconfig"
1087 source "drivers/block/Kconfig"
1089 # misc before ide - BLK_DEV_SGIIOC4 depends on SGI_IOC4
1091 source "drivers/misc/Kconfig"
1093 if PCMCIA || ARCH_CLPS7500 || ARCH_IOP32X || ARCH_IOP33X || ARCH_IXP4XX \
1094 || ARCH_L7200 || ARCH_LH7A40X || ARCH_PXA || ARCH_RPC \
1095 || ARCH_S3C2410 || ARCH_SA1100 || ARCH_SHARK || FOOTBRIDGE \
1097 source "drivers/ide/Kconfig"
1100 source "drivers/scsi/Kconfig"
1102 source "drivers/ata/Kconfig"
1104 source "drivers/md/Kconfig"
1106 source "drivers/message/fusion/Kconfig"
1108 source "drivers/ieee1394/Kconfig"
1110 source "drivers/message/i2o/Kconfig"
1112 source "drivers/net/Kconfig"
1114 source "drivers/isdn/Kconfig"
1116 # input before char - char/joystick depends on it. As does USB.
1118 source "drivers/input/Kconfig"
1120 source "drivers/char/Kconfig"
1122 source "drivers/i2c/Kconfig"
1124 source "drivers/spi/Kconfig"
1126 source "drivers/gpio/Kconfig"
1128 source "drivers/w1/Kconfig"
1130 source "drivers/power/Kconfig"
1132 source "drivers/hwmon/Kconfig"
1134 source "drivers/watchdog/Kconfig"
1136 source "drivers/ssb/Kconfig"
1138 #source "drivers/l3/Kconfig"
1140 source "drivers/mfd/Kconfig"
1142 source "drivers/media/Kconfig"
1144 source "drivers/video/Kconfig"
1146 source "sound/Kconfig"
1148 source "drivers/hid/Kconfig"
1150 source "drivers/usb/Kconfig"
1152 source "drivers/mmc/Kconfig"
1154 source "drivers/leds/Kconfig"
1156 source "drivers/rtc/Kconfig"
1158 source "drivers/dma/Kconfig"
1160 source "drivers/dca/Kconfig"
1166 source "arch/arm/Kconfig.debug"
1168 source "security/Kconfig"
1170 source "crypto/Kconfig"
1172 source "lib/Kconfig"