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
49 The Extended Industry Standard Architecture (EISA) bus was
50 developed as an open alternative to the IBM MicroChannel bus.
52 The EISA bus provided some of the features of the IBM MicroChannel
53 bus while maintaining backward compatibility with cards made for
54 the older ISA bus. The EISA bus saw limited use between 1988 and
55 1995 when it was made obsolete by the PCI bus.
57 Say Y here if you are building a kernel for an EISA-based machine.
67 MicroChannel Architecture is found in some IBM PS/2 machines and
68 laptops. It is a bus system similar to PCI or ISA. See
69 <file:Documentation/mca.txt> (and especially the web page given
70 there) before attempting to build an MCA bus kernel.
72 config GENERIC_HARDIRQS
76 config STACKTRACE_SUPPORT
80 config LOCKDEP_SUPPORT
84 config TRACE_IRQFLAGS_SUPPORT
88 config HARDIRQS_SW_RESEND
92 config GENERIC_IRQ_PROBE
96 config GENERIC_LOCKBREAK
99 depends on SMP && PREEMPT
101 config RWSEM_GENERIC_SPINLOCK
105 config RWSEM_XCHGADD_ALGORITHM
108 config ARCH_HAS_ILOG2_U32
112 config ARCH_HAS_ILOG2_U64
116 config GENERIC_HWEIGHT
120 config GENERIC_CALIBRATE_DELAY
124 config ARCH_MAY_HAVE_PC_FDC
131 config GENERIC_ISA_DMA
142 config OPROFILE_ARMV6
144 depends on CPU_V6 && !SMP
145 select OPROFILE_ARM11_CORE
147 config OPROFILE_MPCORE
149 depends on CPU_V6 && SMP
150 select OPROFILE_ARM11_CORE
152 config OPROFILE_ARM11_CORE
159 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
160 default DRAM_BASE if REMAP_VECTORS_TO_RAM
163 The base address of exception vectors.
165 source "init/Kconfig"
170 prompt "ARM system type"
171 default ARCH_VERSATILE
174 bool "Agilent AAEC-2000 based"
177 This enables support for systems based on the Agilent AAEC-2000
179 config ARCH_INTEGRATOR
180 bool "ARM Ltd. Integrator family"
184 Support for ARM's Integrator platform.
187 bool "ARM Ltd. RealView family"
191 This enables support for ARM Ltd RealView boards.
193 config ARCH_VERSATILE
194 bool "ARM Ltd. Versatile family"
199 select GENERIC_CLOCKEVENTS
201 This enables support for ARM Ltd Versatile board.
207 This enables support for systems based on the Atmel AT91RM9200,
208 AT91SAM9 and AT91CAP9 processors.
211 bool "Cirrus CL-PS7500FE"
216 Support for the Cirrus Logic PS7500FE system-on-a-chip.
219 bool "Cirrus Logic CLPS711x/EP721x-based"
221 Support for Cirrus Logic 711x/721x based boards.
226 select FOOTBRIDGE_ADDIN
228 Support for Intel's EBSA285 companion chip.
235 This is an evaluation board for the StrongARM processor available
236 from Digital. It has limited hardware on-board, including an
237 Ethernet interface, two PCMCIA sockets, two serial ports and a
246 This enables support for the Cirrus EP93xx series of CPUs.
248 config ARCH_FOOTBRIDGE
252 Support for systems based on the DC21285 companion chip
253 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
256 bool "Hilscher NetX based"
259 This enables support for systems based on the Hilscher NetX Soc
262 bool "Hynix HMS720x-based"
265 This enables support for systems based on the Hynix HMS720x
271 select GENERIC_CLOCKEVENTS
273 Support for Motorola's i.MX family of processors (MX1, MXL).
280 select ARCH_SUPPORTS_MSI
282 Support for Intel's IOP13XX (XScale) family of processors.
290 Support for Intel's 80219 and IOP32X (XScale) family of
299 Support for Intel's IOP33X (XScale) family of processors.
306 Support for Intel's IXP23xx (XScale) family of processors.
309 bool "IXP2400/2800-based"
313 Support for Intel's IXP2400/2800 (XScale) family of processors.
320 select GENERIC_CLOCKEVENTS
322 Support for Intel's IXP4XX (XScale) family of processors.
328 Say Y here if you intend to run this kernel on a LinkUp Systems
329 L7200 Software Development Board which uses an ARM720T processor.
330 Information on this board can be obtained at:
332 <http://www.linkupsys.com/>
334 If you have any questions or comments about the Linux kernel port
335 to this board, send e-mail to <sjhill@cotw.com>.
338 bool "Micrel/Kendin KS8695"
341 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
342 System-on-Chip devices.
345 bool "NetSilicon NS9xxx"
348 select GENERIC_CLOCKEVENTS
350 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
353 <http://www.digi.com/products/microprocessors/index.jsp>
356 bool "Freescale MXC/iMX-based"
359 Support for Freescale MXC/iMX-based family of processors
367 select GENERIC_CLOCKEVENTS
369 Support for Marvell Orion System on Chip family.
372 bool "Philips Nexperia PNX4008 Mobile"
374 This enables support for Philips PNX4008 mobile platform.
377 bool "PXA2xx/PXA3xx-based"
382 select GENERIC_CLOCKEVENTS
385 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
392 select ARCH_MAY_HAVE_PC_FDC
396 On the Acorn Risc-PC, Linux can support the internal IDE disk and
397 CD-ROM interface, serial and parallel port, and the floppy drive.
402 select ARCH_DISCONTIGMEM_ENABLE
407 Support for StrongARM 11x0 based boards.
410 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
413 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
414 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
415 the Samsung SMDK2410 development board (and derivatives).
423 Support for the StrongARM based Digital DNARD machine, also known
424 as "Shark" (<http://www.shark-linux.de/shark.html>).
429 Say Y here for systems based on one of the Sharp LH7A40X
430 System on a Chip processors. These CPUs include an ARM922T
431 core with a wide array of integrated devices for
432 hand-held and low-power applications.
437 select GENERIC_CLOCKEVENTS
440 Support for TI's DaVinci platform.
447 Support for TI's OMAP platform (OMAP1 and OMAP2).
450 bool "Qualcomm MSM7X00A"
452 select GENERIC_CLOCKEVENTS
454 Support for Qualcomm MSM7X00A based systems. This runs on the ARM11
455 apps processor of the MSM7X00A and depends on a shared memory
456 interface to the ARM9 modem processor which runs the baseband stack
457 and controls some vital subsystems (clock and power control, etc).
458 <http://www.cdmatech.com/products/msm7200_chipset_solution.jsp>
462 source "arch/arm/mach-clps711x/Kconfig"
464 source "arch/arm/mach-ep93xx/Kconfig"
466 source "arch/arm/mach-footbridge/Kconfig"
468 source "arch/arm/mach-integrator/Kconfig"
470 source "arch/arm/mach-iop32x/Kconfig"
472 source "arch/arm/mach-iop33x/Kconfig"
474 source "arch/arm/mach-iop13xx/Kconfig"
476 source "arch/arm/mach-ixp4xx/Kconfig"
478 source "arch/arm/mach-ixp2000/Kconfig"
480 source "arch/arm/mach-ixp23xx/Kconfig"
482 source "arch/arm/mach-pxa/Kconfig"
484 source "arch/arm/mach-sa1100/Kconfig"
486 source "arch/arm/plat-omap/Kconfig"
488 source "arch/arm/mach-omap1/Kconfig"
490 source "arch/arm/mach-omap2/Kconfig"
492 source "arch/arm/mach-orion/Kconfig"
494 source "arch/arm/plat-s3c24xx/Kconfig"
495 source "arch/arm/plat-s3c/Kconfig"
498 source "arch/arm/mach-s3c2400/Kconfig"
499 source "arch/arm/mach-s3c2410/Kconfig"
500 source "arch/arm/mach-s3c2412/Kconfig"
501 source "arch/arm/mach-s3c2440/Kconfig"
502 source "arch/arm/mach-s3c2442/Kconfig"
503 source "arch/arm/mach-s3c2443/Kconfig"
506 source "arch/arm/mach-lh7a40x/Kconfig"
508 source "arch/arm/mach-imx/Kconfig"
510 source "arch/arm/mach-h720x/Kconfig"
512 source "arch/arm/mach-versatile/Kconfig"
514 source "arch/arm/mach-aaec2000/Kconfig"
516 source "arch/arm/mach-realview/Kconfig"
518 source "arch/arm/mach-at91/Kconfig"
520 source "arch/arm/plat-mxc/Kconfig"
522 source "arch/arm/mach-netx/Kconfig"
524 source "arch/arm/mach-ns9xxx/Kconfig"
526 source "arch/arm/mach-davinci/Kconfig"
528 source "arch/arm/mach-ks8695/Kconfig"
530 source "arch/arm/mach-msm/Kconfig"
532 # Definitions to make life easier
539 source arch/arm/mm/Kconfig
542 bool "Enable iWMMXt support"
543 depends on CPU_XSCALE || CPU_XSC3
544 default y if PXA27x || PXA3xx
546 Enable support for iWMMXt context switching at run time if
547 running on a CPU that supports it.
549 # bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
552 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
556 source "arch/arm/Kconfig-nommu"
561 source "arch/arm/common/Kconfig"
563 config FORCE_MAX_ZONEORDER
576 Find out whether you have ISA slots on your motherboard. ISA is the
577 name of a bus system, i.e. the way the CPU talks to the other stuff
578 inside your box. Other bus systems are PCI, EISA, MicroChannel
579 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
580 newer boards don't support it. If you have ISA, say Y, otherwise N.
582 # Select ISA DMA controller support
587 # Select ISA DMA interface
592 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
594 Find out whether you have a PCI motherboard. PCI is the name of a
595 bus system, i.e. the way the CPU talks to the other stuff inside
596 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
597 VESA. If you have PCI, say Y, otherwise N.
602 # Select the host bridge type
603 config PCI_HOST_VIA82C505
605 depends on PCI && ARCH_SHARK
608 config PCI_HOST_ITE8152
610 depends on PCI && MACH_ARMCORE
614 source "drivers/pci/Kconfig"
616 source "drivers/pcmcia/Kconfig"
620 menu "Kernel Features"
622 source "kernel/time/Kconfig"
625 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
626 depends on EXPERIMENTAL && REALVIEW_MPCORE
628 This enables support for systems with more than one CPU. If you have
629 a system with only one CPU, like most personal computers, say N. If
630 you have a system with more than one CPU, say Y.
632 If you say N here, the kernel will run on single and multiprocessor
633 machines, but will use only one CPU of a multiprocessor machine. If
634 you say Y here, the kernel will run on many, but not all, single
635 processor machines. On a single processor machine, the kernel will
636 run faster if you say N here.
638 See also the <file:Documentation/smp.txt>,
639 <file:Documentation/i386/IO-APIC.txt>,
640 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
641 <http://www.linuxdoc.org/docs.html#howto>.
643 If you don't know what to do here, say N.
646 int "Maximum number of CPUs (2-32)"
652 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
653 depends on SMP && HOTPLUG && EXPERIMENTAL
655 Say Y here to experiment with turning CPUs off and on. CPUs
656 can be controlled through /sys/devices/system/cpu.
659 bool "Use local timer interrupts"
660 depends on SMP && REALVIEW_MPCORE
663 Enable support for local timers on SMP platforms, rather then the
664 legacy IPI broadcast method. Local timers allows the system
665 accounting to be spread across the timer interval, preventing a
666 "thundering herd" at every timer tick.
669 bool "Preemptible Kernel (EXPERIMENTAL)"
670 depends on EXPERIMENTAL
672 This option reduces the latency of the kernel when reacting to
673 real-time or interactive events by allowing a low priority process to
674 be preempted even if it is in kernel mode executing a system call.
675 This allows applications to run more reliably even when the system is
678 Say Y here if you are building a kernel for a desktop, embedded
679 or real-time system. Say N if you are unsure.
682 bool "Dynamic tick timer"
683 depends on !GENERIC_CLOCKEVENTS
685 Select this option if you want to disable continuous timer ticks
686 and have them programmed to occur as required. This option saves
687 power as the system can remain in idle state for longer.
689 By default dynamic tick is disabled during the boot, and can be
690 manually enabled with:
692 echo 1 > /sys/devices/system/timer/timer0/dyn_tick
694 Alternatively, if you want dynamic tick automatically enabled
695 during boot, pass "dyntick=enable" via the kernel command string.
697 Please note that dynamic tick may affect the accuracy of
698 timekeeping on some platforms depending on the implementation.
699 Currently at least OMAP, PXA2xx and SA11x0 platforms are known
700 to have accurate timekeeping with dynamic tick.
704 default 128 if ARCH_L7200
705 default 200 if ARCH_EBSA110 || ARCH_S3C2410
706 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
707 default AT91_TIMER_HZ if ARCH_AT91
711 bool "Use the ARM EABI to compile the kernel"
713 This option allows for the kernel to be compiled using the latest
714 ARM ABI (aka EABI). This is only useful if you are using a user
715 space environment that is also compiled with EABI.
717 Since there are major incompatibilities between the legacy ABI and
718 EABI, especially with regard to structure member alignment, this
719 option also changes the kernel syscall calling convention to
720 disambiguate both ABIs and allow for backward compatibility support
721 (selected with CONFIG_OABI_COMPAT).
723 To use this you need GCC version 4.0.0 or later.
726 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
727 depends on AEABI && EXPERIMENTAL
730 This option preserves the old syscall interface along with the
731 new (ARM EABI) one. It also provides a compatibility layer to
732 intercept syscalls that have structure arguments which layout
733 in memory differs between the legacy ABI and the new ARM EABI
734 (only for non "thumb" binaries). This option adds a tiny
735 overhead to all syscalls and produces a slightly larger kernel.
736 If you know you'll be using only pure EABI user space then you
737 can say N here. If this option is not selected and you attempt
738 to execute a legacy ABI binary then the result will be
739 UNPREDICTABLE (in fact it can be predicted that it won't work
740 at all). If in doubt say Y.
742 config ARCH_DISCONTIGMEM_ENABLE
744 default (ARCH_LH7A40X && !LH7A40X_CONTIGMEM)
746 Say Y to support efficient handling of discontiguous physical memory,
747 for architectures which are either NUMA (Non-Uniform Memory Access)
748 or have huge holes in the physical address space for other reasons.
749 See <file:Documentation/vm/numa> for more.
753 default "4" if ARCH_LH7A40X
755 depends on NEED_MULTIPLE_NODES
760 bool "Timer and CPU usage LEDs"
761 depends on ARCH_CDB89712 || ARCH_CO285 || ARCH_EBSA110 || \
762 ARCH_EBSA285 || ARCH_IMX || ARCH_INTEGRATOR || \
763 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
764 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
765 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
766 ARCH_AT91 || MACH_TRIZEPS4 || ARCH_DAVINCI || \
767 ARCH_KS8695 || MACH_RD88F5182
769 If you say Y here, the LEDs on your machine will be used
770 to provide useful information about your current system status.
772 If you are compiling a kernel for a NetWinder or EBSA-285, you will
773 be able to select which LEDs are active using the options below. If
774 you are compiling a kernel for the EBSA-110 or the LART however, the
775 red LED will simply flash regularly to indicate that the system is
776 still functional. It is safe to say Y here if you have a CATS
777 system, but the driver will do nothing.
780 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
781 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
782 || MACH_OMAP_PERSEUS2
784 depends on !GENERIC_CLOCKEVENTS
785 default y if ARCH_EBSA110
787 If you say Y here, one of the system LEDs (the green one on the
788 NetWinder, the amber one on the EBSA285, or the red one on the LART)
789 will flash regularly to indicate that the system is still
790 operational. This is mainly useful to kernel hackers who are
791 debugging unstable kernels.
793 The LART uses the same LED for both Timer LED and CPU usage LED
794 functions. You may choose to use both, but the Timer LED function
795 will overrule the CPU usage LED.
798 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
800 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
801 || MACH_OMAP_PERSEUS2
804 If you say Y here, the red LED will be used to give a good real
805 time indication of CPU usage, by lighting whenever the idle task
806 is not currently executing.
808 The LART uses the same LED for both Timer LED and CPU usage LED
809 functions. You may choose to use both, but the Timer LED function
810 will overrule the CPU usage LED.
812 config ALIGNMENT_TRAP
814 depends on CPU_CP15_MMU
815 default y if !ARCH_EBSA110
817 ARM processors cannot fetch/store information which is not
818 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
819 address divisible by 4. On 32-bit ARM processors, these non-aligned
820 fetch/store instructions will be emulated in software if you say
821 here, which has a severe performance impact. This is necessary for
822 correct operation of some network protocols. With an IP-only
823 configuration it is safe to say N, otherwise say Y.
829 # Compressed boot loader in ROM. Yes, we really want to ask about
830 # TEXT and BSS so we preserve their values in the config files.
831 config ZBOOT_ROM_TEXT
832 hex "Compressed ROM boot loader base address"
835 The physical address at which the ROM-able zImage is to be
836 placed in the target. Platforms which normally make use of
837 ROM-able zImage formats normally set this to a suitable
838 value in their defconfig file.
840 If ZBOOT_ROM is not enabled, this has no effect.
843 hex "Compressed ROM boot loader BSS address"
846 The base address of an area of read/write memory in the target
847 for the ROM-able zImage which must be available while the
848 decompressor is running. It must be large enough to hold the
849 entire decompressed kernel plus an additional 128 KiB.
850 Platforms which normally make use of ROM-able zImage formats
851 normally set this to a suitable value in their defconfig file.
853 If ZBOOT_ROM is not enabled, this has no effect.
856 bool "Compressed boot loader in ROM/flash"
857 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
859 Say Y here if you intend to execute your compressed kernel image
860 (zImage) directly from ROM or flash. If unsure, say N.
863 string "Default kernel command string"
866 On some architectures (EBSA110 and CATS), there is currently no way
867 for the boot loader to pass arguments to the kernel. For these
868 architectures, you should supply some command-line options at build
869 time by entering them here. As a minimum, you should specify the
870 memory size and the root device (e.g., mem=64M root=/dev/nfs).
873 bool "Kernel Execute-In-Place from ROM"
874 depends on !ZBOOT_ROM
876 Execute-In-Place allows the kernel to run from non-volatile storage
877 directly addressable by the CPU, such as NOR flash. This saves RAM
878 space since the text section of the kernel is not loaded from flash
879 to RAM. Read-write sections, such as the data section and stack,
880 are still copied to RAM. The XIP kernel is not compressed since
881 it has to run directly from flash, so it will take more space to
882 store it. The flash address used to link the kernel object files,
883 and for storing it, is configuration dependent. Therefore, if you
884 say Y here, you must know the proper physical address where to
885 store the kernel image depending on your own flash memory usage.
887 Also note that the make target becomes "make xipImage" rather than
888 "make zImage" or "make Image". The final kernel binary to put in
889 ROM memory will be arch/arm/boot/xipImage.
894 hex "XIP Kernel Physical Location"
895 depends on XIP_KERNEL
898 This is the physical address in your flash memory the kernel will
899 be linked for and stored to. This address is dependent on your
903 bool "Kexec system call (EXPERIMENTAL)"
904 depends on EXPERIMENTAL
906 kexec is a system call that implements the ability to shutdown your
907 current kernel, and to start another kernel. It is like a reboot
908 but it is independent of the system firmware. And like a reboot
909 you can start any kernel with it, not just Linux.
911 It is an ongoing process to be certain the hardware in a machine
912 is properly shutdown, so do not be surprised if this code does not
913 initially work for you. It may help to enable device hotplugging
918 if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX || ARCH_PXA)
920 menu "CPU Frequency scaling"
922 source "drivers/cpufreq/Kconfig"
924 config CPU_FREQ_SA1100
926 depends on CPU_FREQ && (SA1100_H3100 || SA1100_H3600 || SA1100_H3800 || SA1100_LART || SA1100_PLEB || SA1100_BADGE4 || SA1100_HACKKIT)
929 config CPU_FREQ_SA1110
931 depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
934 config CPU_FREQ_INTEGRATOR
935 tristate "CPUfreq driver for ARM Integrator CPUs"
936 depends on ARCH_INTEGRATOR && CPU_FREQ
939 This enables the CPUfreq driver for ARM Integrator CPUs.
941 For details, take a look at <file:Documentation/cpu-freq>.
946 tristate "CPUfreq driver for i.MX CPUs"
947 depends on ARCH_IMX && CPU_FREQ
950 This enables the CPUfreq driver for i.MX CPUs.
956 depends on CPU_FREQ && ARCH_PXA && PXA25x
958 select CPU_FREQ_DEFAULT_GOV_USERSPACE
964 menu "Floating point emulation"
966 comment "At least one emulation must be selected"
969 bool "NWFPE math emulation"
970 depends on !AEABI || OABI_COMPAT
972 Say Y to include the NWFPE floating point emulator in the kernel.
973 This is necessary to run most binaries. Linux does not currently
974 support floating point hardware so you need to say Y here even if
975 your machine has an FPA or floating point co-processor podule.
977 You may say N here if you are going to load the Acorn FPEmulator
981 bool "Support extended precision"
984 Say Y to include 80-bit support in the kernel floating-point
985 emulator. Otherwise, only 32 and 64-bit support is compiled in.
986 Note that gcc does not generate 80-bit operations by default,
987 so in most cases this option only enlarges the size of the
988 floating point emulator without any good reason.
990 You almost surely want to say N here.
993 bool "FastFPE math emulation (EXPERIMENTAL)"
994 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
996 Say Y here to include the FAST floating point emulator in the kernel.
997 This is an experimental much faster emulator which now also has full
998 precision for the mantissa. It does not support any exceptions.
999 It is very simple, and approximately 3-6 times faster than NWFPE.
1001 It should be sufficient for most programs. It may be not suitable
1002 for scientific calculations, but you have to check this for yourself.
1003 If you do not feel you need a faster FP emulation you should better
1007 bool "VFP-format floating point maths"
1008 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
1010 Say Y to include VFP support code in the kernel. This is needed
1011 if your hardware includes a VFP unit.
1013 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1014 release notes and additional status information.
1016 Say N if your target does not have VFP hardware.
1024 bool "Advanced SIMD (NEON) Extension support"
1025 depends on VFPv3 && CPU_V7
1027 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1032 menu "Userspace binary formats"
1034 source "fs/Kconfig.binfmt"
1037 tristate "RISC OS personality"
1040 Say Y here to include the kernel code necessary if you want to run
1041 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1042 experimental; if this sounds frightening, say N and sleep in peace.
1043 You can also say M here to compile this support as a module (which
1044 will be called arthur).
1048 menu "Power management options"
1050 source "kernel/power/Kconfig"
1052 config ARCH_SUSPEND_POSSIBLE
1057 source "net/Kconfig"
1059 menu "Device Drivers"
1061 source "drivers/base/Kconfig"
1063 source "drivers/connector/Kconfig"
1065 if ALIGNMENT_TRAP || !CPU_CP15_MMU
1066 source "drivers/mtd/Kconfig"
1069 source "drivers/parport/Kconfig"
1071 source "drivers/pnp/Kconfig"
1073 source "drivers/block/Kconfig"
1075 # misc before ide - BLK_DEV_SGIIOC4 depends on SGI_IOC4
1077 source "drivers/misc/Kconfig"
1079 if PCMCIA || ARCH_CLPS7500 || ARCH_IOP32X || ARCH_IOP33X || ARCH_IXP4XX \
1080 || ARCH_L7200 || ARCH_LH7A40X || ARCH_PXA || ARCH_RPC \
1081 || ARCH_S3C2410 || ARCH_SA1100 || ARCH_SHARK || FOOTBRIDGE \
1083 source "drivers/ide/Kconfig"
1086 source "drivers/scsi/Kconfig"
1088 source "drivers/ata/Kconfig"
1090 source "drivers/md/Kconfig"
1092 source "drivers/message/fusion/Kconfig"
1094 source "drivers/ieee1394/Kconfig"
1096 source "drivers/message/i2o/Kconfig"
1098 source "drivers/net/Kconfig"
1100 source "drivers/isdn/Kconfig"
1102 # input before char - char/joystick depends on it. As does USB.
1104 source "drivers/input/Kconfig"
1106 source "drivers/char/Kconfig"
1108 source "drivers/i2c/Kconfig"
1110 source "drivers/spi/Kconfig"
1112 source "drivers/w1/Kconfig"
1114 source "drivers/power/Kconfig"
1116 source "drivers/hwmon/Kconfig"
1118 source "drivers/watchdog/Kconfig"
1120 source "drivers/ssb/Kconfig"
1122 #source "drivers/l3/Kconfig"
1124 source "drivers/mfd/Kconfig"
1126 source "drivers/media/Kconfig"
1128 source "drivers/video/Kconfig"
1130 source "sound/Kconfig"
1132 source "drivers/hid/Kconfig"
1134 source "drivers/usb/Kconfig"
1136 source "drivers/mmc/Kconfig"
1138 source "drivers/leds/Kconfig"
1140 source "drivers/rtc/Kconfig"
1142 source "drivers/dma/Kconfig"
1144 source "drivers/dca/Kconfig"
1150 source "arch/arm/Kconfig.debug"
1152 source "security/Kconfig"
1154 source "crypto/Kconfig"
1156 source "lib/Kconfig"