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 The ARM series is a line of low-power-consumption RISC chip designs
15 licensed by ARM Ltd and targeted at embedded applications and
16 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
17 manufactured, but legacy ARM-based PC hardware remains popular in
18 Europe. There is an ARM Linux project with a web page at
19 <http://www.arm.linux.org.uk/>.
21 config SYS_SUPPORTS_APM_EMULATION
32 config GENERIC_CLOCKEVENTS
47 The Extended Industry Standard Architecture (EISA) bus was
48 developed as an open alternative to the IBM MicroChannel bus.
50 The EISA bus provided some of the features of the IBM MicroChannel
51 bus while maintaining backward compatibility with cards made for
52 the older ISA bus. The EISA bus saw limited use between 1988 and
53 1995 when it was made obsolete by the PCI bus.
55 Say Y here if you are building a kernel for an EISA-based machine.
65 MicroChannel Architecture is found in some IBM PS/2 machines and
66 laptops. It is a bus system similar to PCI or ISA. See
67 <file:Documentation/mca.txt> (and especially the web page given
68 there) before attempting to build an MCA bus kernel.
70 config GENERIC_HARDIRQS
74 config STACKTRACE_SUPPORT
78 config LOCKDEP_SUPPORT
82 config TRACE_IRQFLAGS_SUPPORT
86 config HARDIRQS_SW_RESEND
90 config GENERIC_IRQ_PROBE
94 config GENERIC_LOCKBREAK
97 depends on SMP && PREEMPT
99 config RWSEM_GENERIC_SPINLOCK
103 config RWSEM_XCHGADD_ALGORITHM
106 config ARCH_HAS_ILOG2_U32
110 config ARCH_HAS_ILOG2_U64
114 config GENERIC_HWEIGHT
118 config GENERIC_CALIBRATE_DELAY
122 config ARCH_MAY_HAVE_PC_FDC
129 config GENERIC_ISA_DMA
140 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
141 default DRAM_BASE if REMAP_VECTORS_TO_RAM
144 The base address of exception vectors.
146 source "init/Kconfig"
151 prompt "ARM system type"
152 default ARCH_VERSATILE
155 bool "Agilent AAEC-2000 based"
158 This enables support for systems based on the Agilent AAEC-2000
160 config ARCH_INTEGRATOR
161 bool "ARM Ltd. Integrator family"
165 Support for ARM's Integrator platform.
168 bool "ARM Ltd. RealView family"
173 This enables support for ARM Ltd RealView boards.
175 config ARCH_VERSATILE
176 bool "ARM Ltd. Versatile family"
181 select GENERIC_CLOCKEVENTS
183 This enables support for ARM Ltd Versatile board.
189 This enables support for systems based on the Atmel AT91RM9200,
190 AT91SAM9 and AT91CAP9 processors.
193 bool "Cirrus CL-PS7500FE"
198 Support for the Cirrus Logic PS7500FE system-on-a-chip.
201 bool "Cirrus Logic CLPS711x/EP721x-based"
203 Support for Cirrus Logic 711x/721x based boards.
208 select FOOTBRIDGE_ADDIN
210 Support for Intel's EBSA285 companion chip.
217 This is an evaluation board for the StrongARM processor available
218 from Digital. It has limited hardware on-board, including an
219 Ethernet interface, two PCMCIA sockets, two serial ports and a
228 This enables support for the Cirrus EP93xx series of CPUs.
230 config ARCH_FOOTBRIDGE
234 Support for systems based on the DC21285 companion chip
235 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
238 bool "Hilscher NetX based"
241 This enables support for systems based on the Hilscher NetX Soc
244 bool "Hynix HMS720x-based"
247 This enables support for systems based on the Hynix HMS720x
253 select GENERIC_CLOCKEVENTS
255 Support for Motorola's i.MX family of processors (MX1, MXL).
262 select ARCH_SUPPORTS_MSI
264 Support for Intel's IOP13XX (XScale) family of processors.
272 Support for Intel's 80219 and IOP32X (XScale) family of
281 Support for Intel's IOP33X (XScale) family of processors.
288 Support for Intel's IXP23xx (XScale) family of processors.
291 bool "IXP2400/2800-based"
295 Support for Intel's IXP2400/2800 (XScale) family of processors.
302 select GENERIC_CLOCKEVENTS
304 Support for Intel's IXP4XX (XScale) family of processors.
310 Say Y here if you intend to run this kernel on a LinkUp Systems
311 L7200 Software Development Board which uses an ARM720T processor.
312 Information on this board can be obtained at:
314 <http://www.linkupsys.com/>
316 If you have any questions or comments about the Linux kernel port
317 to this board, send e-mail to <sjhill@cotw.com>.
320 bool "Micrel/Kendin KS8695"
323 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
324 System-on-Chip devices.
327 bool "NetSilicon NS9xxx"
330 select GENERIC_CLOCKEVENTS
332 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
335 <http://www.digi.com/products/microprocessors/index.jsp>
338 bool "Freescale MXC/iMX-based"
341 Support for Freescale MXC/iMX-based family of processors
349 select GENERIC_CLOCKEVENTS
351 Support for Marvell Orion System on Chip family.
354 bool "Philips Nexperia PNX4008 Mobile"
356 This enables support for Philips PNX4008 mobile platform.
359 bool "PXA2xx/PXA3xx-based"
364 select GENERIC_CLOCKEVENTS
367 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
374 select ARCH_MAY_HAVE_PC_FDC
378 On the Acorn Risc-PC, Linux can support the internal IDE disk and
379 CD-ROM interface, serial and parallel port, and the floppy drive.
384 select ARCH_DISCONTIGMEM_ENABLE
389 Support for StrongARM 11x0 based boards.
392 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
395 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
396 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
397 the Samsung SMDK2410 development board (and derivatives).
405 Support for the StrongARM based Digital DNARD machine, also known
406 as "Shark" (<http://www.shark-linux.de/shark.html>).
411 Say Y here for systems based on one of the Sharp LH7A40X
412 System on a Chip processors. These CPUs include an ARM922T
413 core with a wide array of integrated devices for
414 hand-held and low-power applications.
419 select GENERIC_CLOCKEVENTS
422 Support for TI's DaVinci platform.
429 Support for TI's OMAP platform (OMAP1 and OMAP2).
432 bool "Qualcomm MSM7X00A"
434 select GENERIC_CLOCKEVENTS
436 Support for Qualcomm MSM7X00A based systems. This runs on the ARM11
437 apps processor of the MSM7X00A and depends on a shared memory
438 interface to the ARM9 modem processor which runs the baseband stack
439 and controls some vital subsystems (clock and power control, etc).
440 <http://www.cdmatech.com/products/msm7200_chipset_solution.jsp>
444 source "arch/arm/mach-clps711x/Kconfig"
446 source "arch/arm/mach-ep93xx/Kconfig"
448 source "arch/arm/mach-footbridge/Kconfig"
450 source "arch/arm/mach-integrator/Kconfig"
452 source "arch/arm/mach-iop32x/Kconfig"
454 source "arch/arm/mach-iop33x/Kconfig"
456 source "arch/arm/mach-iop13xx/Kconfig"
458 source "arch/arm/mach-ixp4xx/Kconfig"
460 source "arch/arm/mach-ixp2000/Kconfig"
462 source "arch/arm/mach-ixp23xx/Kconfig"
464 source "arch/arm/mach-pxa/Kconfig"
466 source "arch/arm/mach-sa1100/Kconfig"
468 source "arch/arm/plat-omap/Kconfig"
470 source "arch/arm/mach-omap1/Kconfig"
472 source "arch/arm/mach-omap2/Kconfig"
474 source "arch/arm/mach-orion/Kconfig"
476 source "arch/arm/plat-s3c24xx/Kconfig"
477 source "arch/arm/plat-s3c/Kconfig"
480 source "arch/arm/mach-s3c2400/Kconfig"
481 source "arch/arm/mach-s3c2410/Kconfig"
482 source "arch/arm/mach-s3c2412/Kconfig"
483 source "arch/arm/mach-s3c2440/Kconfig"
484 source "arch/arm/mach-s3c2442/Kconfig"
485 source "arch/arm/mach-s3c2443/Kconfig"
488 source "arch/arm/mach-lh7a40x/Kconfig"
490 source "arch/arm/mach-imx/Kconfig"
492 source "arch/arm/mach-h720x/Kconfig"
494 source "arch/arm/mach-versatile/Kconfig"
496 source "arch/arm/mach-aaec2000/Kconfig"
498 source "arch/arm/mach-realview/Kconfig"
500 source "arch/arm/mach-at91/Kconfig"
502 source "arch/arm/plat-mxc/Kconfig"
504 source "arch/arm/mach-netx/Kconfig"
506 source "arch/arm/mach-ns9xxx/Kconfig"
508 source "arch/arm/mach-davinci/Kconfig"
510 source "arch/arm/mach-ks8695/Kconfig"
512 source "arch/arm/mach-msm/Kconfig"
514 # Definitions to make life easier
521 source arch/arm/mm/Kconfig
524 bool "Enable iWMMXt support"
525 depends on CPU_XSCALE || CPU_XSC3
526 default y if PXA27x || PXA3xx
528 Enable support for iWMMXt context switching at run time if
529 running on a CPU that supports it.
531 # bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
534 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
538 source "arch/arm/Kconfig-nommu"
543 source "arch/arm/common/Kconfig"
545 config FORCE_MAX_ZONEORDER
558 Find out whether you have ISA slots on your motherboard. ISA is the
559 name of a bus system, i.e. the way the CPU talks to the other stuff
560 inside your box. Other bus systems are PCI, EISA, MicroChannel
561 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
562 newer boards don't support it. If you have ISA, say Y, otherwise N.
564 # Select ISA DMA controller support
569 # Select ISA DMA interface
574 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
576 Find out whether you have a PCI motherboard. PCI is the name of a
577 bus system, i.e. the way the CPU talks to the other stuff inside
578 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
579 VESA. If you have PCI, say Y, otherwise N.
584 # Select the host bridge type
585 config PCI_HOST_VIA82C505
587 depends on PCI && ARCH_SHARK
590 config PCI_HOST_ITE8152
592 depends on PCI && MACH_ARMCORE
596 source "drivers/pci/Kconfig"
598 source "drivers/pcmcia/Kconfig"
602 menu "Kernel Features"
604 source "kernel/time/Kconfig"
607 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
608 depends on EXPERIMENTAL && REALVIEW_MPCORE
610 This enables support for systems with more than one CPU. If you have
611 a system with only one CPU, like most personal computers, say N. If
612 you have a system with more than one CPU, say Y.
614 If you say N here, the kernel will run on single and multiprocessor
615 machines, but will use only one CPU of a multiprocessor machine. If
616 you say Y here, the kernel will run on many, but not all, single
617 processor machines. On a single processor machine, the kernel will
618 run faster if you say N here.
620 See also the <file:Documentation/smp.txt>,
621 <file:Documentation/i386/IO-APIC.txt>,
622 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
623 <http://www.linuxdoc.org/docs.html#howto>.
625 If you don't know what to do here, say N.
628 int "Maximum number of CPUs (2-32)"
634 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
635 depends on SMP && HOTPLUG && EXPERIMENTAL
637 Say Y here to experiment with turning CPUs off and on. CPUs
638 can be controlled through /sys/devices/system/cpu.
641 bool "Use local timer interrupts"
642 depends on SMP && REALVIEW_MPCORE
645 Enable support for local timers on SMP platforms, rather then the
646 legacy IPI broadcast method. Local timers allows the system
647 accounting to be spread across the timer interval, preventing a
648 "thundering herd" at every timer tick.
651 bool "Preemptible Kernel (EXPERIMENTAL)"
652 depends on EXPERIMENTAL
654 This option reduces the latency of the kernel when reacting to
655 real-time or interactive events by allowing a low priority process to
656 be preempted even if it is in kernel mode executing a system call.
657 This allows applications to run more reliably even when the system is
660 Say Y here if you are building a kernel for a desktop, embedded
661 or real-time system. Say N if you are unsure.
664 bool "Dynamic tick timer"
665 depends on !GENERIC_CLOCKEVENTS
667 Select this option if you want to disable continuous timer ticks
668 and have them programmed to occur as required. This option saves
669 power as the system can remain in idle state for longer.
671 By default dynamic tick is disabled during the boot, and can be
672 manually enabled with:
674 echo 1 > /sys/devices/system/timer/timer0/dyn_tick
676 Alternatively, if you want dynamic tick automatically enabled
677 during boot, pass "dyntick=enable" via the kernel command string.
679 Please note that dynamic tick may affect the accuracy of
680 timekeeping on some platforms depending on the implementation.
681 Currently at least OMAP, PXA2xx and SA11x0 platforms are known
682 to have accurate timekeeping with dynamic tick.
686 default 128 if ARCH_L7200
687 default 200 if ARCH_EBSA110 || ARCH_S3C2410
688 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
689 default AT91_TIMER_HZ if ARCH_AT91
693 bool "Use the ARM EABI to compile the kernel"
695 This option allows for the kernel to be compiled using the latest
696 ARM ABI (aka EABI). This is only useful if you are using a user
697 space environment that is also compiled with EABI.
699 Since there are major incompatibilities between the legacy ABI and
700 EABI, especially with regard to structure member alignment, this
701 option also changes the kernel syscall calling convention to
702 disambiguate both ABIs and allow for backward compatibility support
703 (selected with CONFIG_OABI_COMPAT).
705 To use this you need GCC version 4.0.0 or later.
708 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
709 depends on AEABI && EXPERIMENTAL
712 This option preserves the old syscall interface along with the
713 new (ARM EABI) one. It also provides a compatibility layer to
714 intercept syscalls that have structure arguments which layout
715 in memory differs between the legacy ABI and the new ARM EABI
716 (only for non "thumb" binaries). This option adds a tiny
717 overhead to all syscalls and produces a slightly larger kernel.
718 If you know you'll be using only pure EABI user space then you
719 can say N here. If this option is not selected and you attempt
720 to execute a legacy ABI binary then the result will be
721 UNPREDICTABLE (in fact it can be predicted that it won't work
722 at all). If in doubt say Y.
724 config ARCH_DISCONTIGMEM_ENABLE
726 default (ARCH_LH7A40X && !LH7A40X_CONTIGMEM)
728 Say Y to support efficient handling of discontiguous physical memory,
729 for architectures which are either NUMA (Non-Uniform Memory Access)
730 or have huge holes in the physical address space for other reasons.
731 See <file:Documentation/vm/numa> for more.
735 default "4" if ARCH_LH7A40X
737 depends on NEED_MULTIPLE_NODES
742 bool "Timer and CPU usage LEDs"
743 depends on ARCH_CDB89712 || ARCH_CO285 || ARCH_EBSA110 || \
744 ARCH_EBSA285 || ARCH_IMX || ARCH_INTEGRATOR || \
745 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
746 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
747 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
748 ARCH_AT91 || MACH_TRIZEPS4 || ARCH_DAVINCI || \
749 ARCH_KS8695 || MACH_RD88F5182
751 If you say Y here, the LEDs on your machine will be used
752 to provide useful information about your current system status.
754 If you are compiling a kernel for a NetWinder or EBSA-285, you will
755 be able to select which LEDs are active using the options below. If
756 you are compiling a kernel for the EBSA-110 or the LART however, the
757 red LED will simply flash regularly to indicate that the system is
758 still functional. It is safe to say Y here if you have a CATS
759 system, but the driver will do nothing.
762 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
763 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
764 || MACH_OMAP_PERSEUS2
766 depends on !GENERIC_CLOCKEVENTS
767 default y if ARCH_EBSA110
769 If you say Y here, one of the system LEDs (the green one on the
770 NetWinder, the amber one on the EBSA285, or the red one on the LART)
771 will flash regularly to indicate that the system is still
772 operational. This is mainly useful to kernel hackers who are
773 debugging unstable kernels.
775 The LART uses the same LED for both Timer LED and CPU usage LED
776 functions. You may choose to use both, but the Timer LED function
777 will overrule the CPU usage LED.
780 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
782 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
783 || MACH_OMAP_PERSEUS2
786 If you say Y here, the red LED will be used to give a good real
787 time indication of CPU usage, by lighting whenever the idle task
788 is not currently executing.
790 The LART uses the same LED for both Timer LED and CPU usage LED
791 functions. You may choose to use both, but the Timer LED function
792 will overrule the CPU usage LED.
794 config ALIGNMENT_TRAP
796 depends on CPU_CP15_MMU
797 default y if !ARCH_EBSA110
799 ARM processors cannot fetch/store information which is not
800 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
801 address divisible by 4. On 32-bit ARM processors, these non-aligned
802 fetch/store instructions will be emulated in software if you say
803 here, which has a severe performance impact. This is necessary for
804 correct operation of some network protocols. With an IP-only
805 configuration it is safe to say N, otherwise say Y.
811 # Compressed boot loader in ROM. Yes, we really want to ask about
812 # TEXT and BSS so we preserve their values in the config files.
813 config ZBOOT_ROM_TEXT
814 hex "Compressed ROM boot loader base address"
817 The physical address at which the ROM-able zImage is to be
818 placed in the target. Platforms which normally make use of
819 ROM-able zImage formats normally set this to a suitable
820 value in their defconfig file.
822 If ZBOOT_ROM is not enabled, this has no effect.
825 hex "Compressed ROM boot loader BSS address"
828 The base address of an area of read/write memory in the target
829 for the ROM-able zImage which must be available while the
830 decompressor is running. It must be large enough to hold the
831 entire decompressed kernel plus an additional 128 KiB.
832 Platforms which normally make use of ROM-able zImage formats
833 normally set this to a suitable value in their defconfig file.
835 If ZBOOT_ROM is not enabled, this has no effect.
838 bool "Compressed boot loader in ROM/flash"
839 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
841 Say Y here if you intend to execute your compressed kernel image
842 (zImage) directly from ROM or flash. If unsure, say N.
845 string "Default kernel command string"
848 On some architectures (EBSA110 and CATS), there is currently no way
849 for the boot loader to pass arguments to the kernel. For these
850 architectures, you should supply some command-line options at build
851 time by entering them here. As a minimum, you should specify the
852 memory size and the root device (e.g., mem=64M root=/dev/nfs).
855 bool "Kernel Execute-In-Place from ROM"
856 depends on !ZBOOT_ROM
858 Execute-In-Place allows the kernel to run from non-volatile storage
859 directly addressable by the CPU, such as NOR flash. This saves RAM
860 space since the text section of the kernel is not loaded from flash
861 to RAM. Read-write sections, such as the data section and stack,
862 are still copied to RAM. The XIP kernel is not compressed since
863 it has to run directly from flash, so it will take more space to
864 store it. The flash address used to link the kernel object files,
865 and for storing it, is configuration dependent. Therefore, if you
866 say Y here, you must know the proper physical address where to
867 store the kernel image depending on your own flash memory usage.
869 Also note that the make target becomes "make xipImage" rather than
870 "make zImage" or "make Image". The final kernel binary to put in
871 ROM memory will be arch/arm/boot/xipImage.
876 hex "XIP Kernel Physical Location"
877 depends on XIP_KERNEL
880 This is the physical address in your flash memory the kernel will
881 be linked for and stored to. This address is dependent on your
885 bool "Kexec system call (EXPERIMENTAL)"
886 depends on EXPERIMENTAL
888 kexec is a system call that implements the ability to shutdown your
889 current kernel, and to start another kernel. It is like a reboot
890 but it is independent of the system firmware. And like a reboot
891 you can start any kernel with it, not just Linux.
893 It is an ongoing process to be certain the hardware in a machine
894 is properly shutdown, so do not be surprised if this code does not
895 initially work for you. It may help to enable device hotplugging
900 if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX || ARCH_PXA)
902 menu "CPU Frequency scaling"
904 source "drivers/cpufreq/Kconfig"
906 config CPU_FREQ_SA1100
908 depends on CPU_FREQ && (SA1100_H3100 || SA1100_H3600 || SA1100_H3800 || SA1100_LART || SA1100_PLEB || SA1100_BADGE4 || SA1100_HACKKIT)
911 config CPU_FREQ_SA1110
913 depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
916 config CPU_FREQ_INTEGRATOR
917 tristate "CPUfreq driver for ARM Integrator CPUs"
918 depends on ARCH_INTEGRATOR && CPU_FREQ
921 This enables the CPUfreq driver for ARM Integrator CPUs.
923 For details, take a look at <file:Documentation/cpu-freq>.
928 tristate "CPUfreq driver for i.MX CPUs"
929 depends on ARCH_IMX && CPU_FREQ
932 This enables the CPUfreq driver for i.MX CPUs.
938 depends on CPU_FREQ && ARCH_PXA && PXA25x
940 select CPU_FREQ_DEFAULT_GOV_USERSPACE
946 menu "Floating point emulation"
948 comment "At least one emulation must be selected"
951 bool "NWFPE math emulation"
952 depends on !AEABI || OABI_COMPAT
954 Say Y to include the NWFPE floating point emulator in the kernel.
955 This is necessary to run most binaries. Linux does not currently
956 support floating point hardware so you need to say Y here even if
957 your machine has an FPA or floating point co-processor podule.
959 You may say N here if you are going to load the Acorn FPEmulator
963 bool "Support extended precision"
966 Say Y to include 80-bit support in the kernel floating-point
967 emulator. Otherwise, only 32 and 64-bit support is compiled in.
968 Note that gcc does not generate 80-bit operations by default,
969 so in most cases this option only enlarges the size of the
970 floating point emulator without any good reason.
972 You almost surely want to say N here.
975 bool "FastFPE math emulation (EXPERIMENTAL)"
976 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
978 Say Y here to include the FAST floating point emulator in the kernel.
979 This is an experimental much faster emulator which now also has full
980 precision for the mantissa. It does not support any exceptions.
981 It is very simple, and approximately 3-6 times faster than NWFPE.
983 It should be sufficient for most programs. It may be not suitable
984 for scientific calculations, but you have to check this for yourself.
985 If you do not feel you need a faster FP emulation you should better
989 bool "VFP-format floating point maths"
990 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
992 Say Y to include VFP support code in the kernel. This is needed
993 if your hardware includes a VFP unit.
995 Please see <file:Documentation/arm/VFP/release-notes.txt> for
996 release notes and additional status information.
998 Say N if your target does not have VFP hardware.
1006 bool "Advanced SIMD (NEON) Extension support"
1007 depends on VFPv3 && CPU_V7
1009 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1014 menu "Userspace binary formats"
1016 source "fs/Kconfig.binfmt"
1019 tristate "RISC OS personality"
1022 Say Y here to include the kernel code necessary if you want to run
1023 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1024 experimental; if this sounds frightening, say N and sleep in peace.
1025 You can also say M here to compile this support as a module (which
1026 will be called arthur).
1030 menu "Power management options"
1032 source "kernel/power/Kconfig"
1034 config ARCH_SUSPEND_POSSIBLE
1039 source "net/Kconfig"
1041 menu "Device Drivers"
1043 source "drivers/base/Kconfig"
1045 source "drivers/connector/Kconfig"
1047 if ALIGNMENT_TRAP || !CPU_CP15_MMU
1048 source "drivers/mtd/Kconfig"
1051 source "drivers/parport/Kconfig"
1053 source "drivers/pnp/Kconfig"
1055 source "drivers/block/Kconfig"
1057 # misc before ide - BLK_DEV_SGIIOC4 depends on SGI_IOC4
1059 source "drivers/misc/Kconfig"
1061 if PCMCIA || ARCH_CLPS7500 || ARCH_IOP32X || ARCH_IOP33X || ARCH_IXP4XX \
1062 || ARCH_L7200 || ARCH_LH7A40X || ARCH_PXA || ARCH_RPC \
1063 || ARCH_S3C2410 || ARCH_SA1100 || ARCH_SHARK || FOOTBRIDGE \
1065 source "drivers/ide/Kconfig"
1068 source "drivers/scsi/Kconfig"
1070 source "drivers/ata/Kconfig"
1072 source "drivers/md/Kconfig"
1074 source "drivers/message/fusion/Kconfig"
1076 source "drivers/ieee1394/Kconfig"
1078 source "drivers/message/i2o/Kconfig"
1080 source "drivers/net/Kconfig"
1082 source "drivers/isdn/Kconfig"
1084 # input before char - char/joystick depends on it. As does USB.
1086 source "drivers/input/Kconfig"
1088 source "drivers/char/Kconfig"
1090 source "drivers/i2c/Kconfig"
1092 source "drivers/spi/Kconfig"
1094 source "drivers/w1/Kconfig"
1096 source "drivers/power/Kconfig"
1098 source "drivers/hwmon/Kconfig"
1100 source "drivers/watchdog/Kconfig"
1102 source "drivers/ssb/Kconfig"
1104 #source "drivers/l3/Kconfig"
1106 source "drivers/mfd/Kconfig"
1108 source "drivers/media/Kconfig"
1110 source "drivers/video/Kconfig"
1112 source "sound/Kconfig"
1114 source "drivers/hid/Kconfig"
1116 source "drivers/usb/Kconfig"
1118 source "drivers/mmc/Kconfig"
1120 source "drivers/leds/Kconfig"
1122 source "drivers/rtc/Kconfig"
1124 source "drivers/dma/Kconfig"
1126 source "drivers/dca/Kconfig"
1132 source "arch/arm/Kconfig.instrumentation"
1134 source "arch/arm/Kconfig.debug"
1136 source "security/Kconfig"
1138 source "crypto/Kconfig"
1140 source "lib/Kconfig"