Kconfig 23 KB

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  1. #
  2. # For a description of the syntax of this configuration file,
  3. # see Documentation/kbuild/kconfig-language.txt.
  4. #
  5. mainmenu "Linux Kernel Configuration"
  6. config ARM
  7. bool
  8. default y
  9. help
  10. The ARM series is a line of low-power-consumption RISC chip designs
  11. licensed by ARM Ltd and targeted at embedded applications and
  12. handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
  13. manufactured, but legacy ARM-based PC hardware remains popular in
  14. Europe. There is an ARM Linux project with a web page at
  15. <http://www.arm.linux.org.uk/>.
  16. config MMU
  17. bool
  18. default y
  19. config EISA
  20. bool
  21. ---help---
  22. The Extended Industry Standard Architecture (EISA) bus was
  23. developed as an open alternative to the IBM MicroChannel bus.
  24. The EISA bus provided some of the features of the IBM MicroChannel
  25. bus while maintaining backward compatibility with cards made for
  26. the older ISA bus. The EISA bus saw limited use between 1988 and
  27. 1995 when it was made obsolete by the PCI bus.
  28. Say Y here if you are building a kernel for an EISA-based machine.
  29. Otherwise, say N.
  30. config SBUS
  31. bool
  32. config MCA
  33. bool
  34. help
  35. MicroChannel Architecture is found in some IBM PS/2 machines and
  36. laptops. It is a bus system similar to PCI or ISA. See
  37. <file:Documentation/mca.txt> (and especially the web page given
  38. there) before attempting to build an MCA bus kernel.
  39. config RWSEM_GENERIC_SPINLOCK
  40. bool
  41. default y
  42. config RWSEM_XCHGADD_ALGORITHM
  43. bool
  44. config GENERIC_CALIBRATE_DELAY
  45. bool
  46. default y
  47. config GENERIC_BUST_SPINLOCK
  48. bool
  49. config ARCH_MAY_HAVE_PC_FDC
  50. bool
  51. config GENERIC_ISA_DMA
  52. bool
  53. config FIQ
  54. bool
  55. config ARCH_MTD_XIP
  56. bool
  57. source "init/Kconfig"
  58. menu "System Type"
  59. choice
  60. prompt "ARM system type"
  61. default ARCH_VERSATILE
  62. config ARCH_CLPS7500
  63. bool "Cirrus-CL-PS7500FE"
  64. select TIMER_ACORN
  65. select ISA
  66. help
  67. Support for the Cirrus Logic PS7500FE system-on-a-chip.
  68. config ARCH_CLPS711X
  69. bool "CLPS711x/EP721x-based"
  70. help
  71. Support for Cirrus Logic 711x/721x based boards.
  72. config ARCH_CO285
  73. bool "Co-EBSA285"
  74. select FOOTBRIDGE
  75. select FOOTBRIDGE_ADDIN
  76. help
  77. Support for Intel's EBSA285 companion chip.
  78. config ARCH_EBSA110
  79. bool "EBSA-110"
  80. select ISA
  81. help
  82. This is an evaluation board for the StrongARM processor available
  83. from Digital. It has limited hardware on-board, including an
  84. Ethernet interface, two PCMCIA sockets, two serial ports and a
  85. parallel port.
  86. config ARCH_FOOTBRIDGE
  87. bool "FootBridge"
  88. select FOOTBRIDGE
  89. help
  90. Support for systems based on the DC21285 companion chip
  91. ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
  92. config ARCH_INTEGRATOR
  93. bool "Integrator"
  94. select ARM_AMBA
  95. select ICST525
  96. help
  97. Support for ARM's Integrator platform.
  98. config ARCH_IOP3XX
  99. bool "IOP3xx-based"
  100. select PCI
  101. help
  102. Support for Intel's IOP3XX (XScale) family of processors.
  103. config ARCH_IXP4XX
  104. bool "IXP4xx-based"
  105. select DMABOUNCE
  106. select PCI
  107. help
  108. Support for Intel's IXP4XX (XScale) family of processors.
  109. config ARCH_IXP2000
  110. bool "IXP2400/2800-based"
  111. select PCI
  112. help
  113. Support for Intel's IXP2400/2800 (XScale) family of processors.
  114. config ARCH_L7200
  115. bool "LinkUp-L7200"
  116. select FIQ
  117. help
  118. Say Y here if you intend to run this kernel on a LinkUp Systems
  119. L7200 Software Development Board which uses an ARM720T processor.
  120. Information on this board can be obtained at:
  121. <http://www.linkupsys.com/>
  122. If you have any questions or comments about the Linux kernel port
  123. to this board, send e-mail to <sjhill@cotw.com>.
  124. config ARCH_PXA
  125. bool "PXA2xx-based"
  126. select ARCH_MTD_XIP
  127. help
  128. Support for Intel's PXA2XX processor line.
  129. config ARCH_RPC
  130. bool "RiscPC"
  131. select ARCH_ACORN
  132. select FIQ
  133. select TIMER_ACORN
  134. select ARCH_MAY_HAVE_PC_FDC
  135. select ISA_DMA_API
  136. help
  137. On the Acorn Risc-PC, Linux can support the internal IDE disk and
  138. CD-ROM interface, serial and parallel port, and the floppy drive.
  139. config ARCH_SA1100
  140. bool "SA1100-based"
  141. select ISA
  142. select ARCH_DISCONTIGMEM_ENABLE
  143. select ARCH_MTD_XIP
  144. help
  145. Support for StrongARM 11x0 based boards.
  146. config ARCH_S3C2410
  147. bool "Samsung S3C2410"
  148. help
  149. Samsung S3C2410X CPU based systems, such as the Simtec Electronics
  150. BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
  151. the Samsung SMDK2410 development board (and derivatives).
  152. config ARCH_SHARK
  153. bool "Shark"
  154. select ISA
  155. select ISA_DMA
  156. select PCI
  157. help
  158. Support for the StrongARM based Digital DNARD machine, also known
  159. as "Shark" (<http://www.shark-linux.de/shark.html>).
  160. config ARCH_LH7A40X
  161. bool "Sharp LH7A40X"
  162. help
  163. Say Y here for systems based on one of the Sharp LH7A40X
  164. System on a Chip processors. These CPUs include an ARM922T
  165. core with a wide array of integrated devices for
  166. hand-held and low-power applications.
  167. config ARCH_OMAP
  168. bool "TI OMAP"
  169. help
  170. Support for TI's OMAP platform (OMAP1 and OMAP2).
  171. config ARCH_VERSATILE
  172. bool "Versatile"
  173. select ARM_AMBA
  174. select ARM_VIC
  175. select ICST307
  176. help
  177. This enables support for ARM Ltd Versatile board.
  178. config ARCH_REALVIEW
  179. bool "RealView"
  180. select ARM_AMBA
  181. select ICST307
  182. help
  183. This enables support for ARM Ltd RealView boards.
  184. config ARCH_IMX
  185. bool "IMX"
  186. help
  187. Support for Motorola's i.MX family of processors (MX1, MXL).
  188. config ARCH_H720X
  189. bool "Hynix-HMS720x-based"
  190. select ISA_DMA_API
  191. help
  192. This enables support for systems based on the Hynix HMS720x
  193. config ARCH_AAEC2000
  194. bool "Agilent AAEC-2000 based"
  195. select ARM_AMBA
  196. help
  197. This enables support for systems based on the Agilent AAEC-2000
  198. config ARCH_AT91RM9200
  199. bool "AT91RM9200"
  200. help
  201. Say Y here if you intend to run this kernel on an Atmel
  202. AT91RM9200-based board.
  203. endchoice
  204. source "arch/arm/mach-clps711x/Kconfig"
  205. source "arch/arm/mach-footbridge/Kconfig"
  206. source "arch/arm/mach-integrator/Kconfig"
  207. source "arch/arm/mach-iop3xx/Kconfig"
  208. source "arch/arm/mach-ixp4xx/Kconfig"
  209. source "arch/arm/mach-ixp2000/Kconfig"
  210. source "arch/arm/mach-pxa/Kconfig"
  211. source "arch/arm/mach-sa1100/Kconfig"
  212. source "arch/arm/plat-omap/Kconfig"
  213. source "arch/arm/mach-omap1/Kconfig"
  214. source "arch/arm/mach-omap2/Kconfig"
  215. source "arch/arm/mach-s3c2410/Kconfig"
  216. source "arch/arm/mach-lh7a40x/Kconfig"
  217. source "arch/arm/mach-imx/Kconfig"
  218. source "arch/arm/mach-h720x/Kconfig"
  219. source "arch/arm/mach-versatile/Kconfig"
  220. source "arch/arm/mach-aaec2000/Kconfig"
  221. source "arch/arm/mach-realview/Kconfig"
  222. source "arch/arm/mach-at91rm9200/Kconfig"
  223. # Definitions to make life easier
  224. config ARCH_ACORN
  225. bool
  226. source arch/arm/mm/Kconfig
  227. # bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
  228. config XSCALE_PMU
  229. bool
  230. depends on CPU_XSCALE && !XSCALE_PMU_TIMER
  231. default y
  232. endmenu
  233. source "arch/arm/common/Kconfig"
  234. config FORCE_MAX_ZONEORDER
  235. int
  236. depends on SA1111
  237. default "9"
  238. menu "Bus support"
  239. config ARM_AMBA
  240. bool
  241. config ISA
  242. bool
  243. help
  244. Find out whether you have ISA slots on your motherboard. ISA is the
  245. name of a bus system, i.e. the way the CPU talks to the other stuff
  246. inside your box. Other bus systems are PCI, EISA, MicroChannel
  247. (MCA) or VESA. ISA is an older system, now being displaced by PCI;
  248. newer boards don't support it. If you have ISA, say Y, otherwise N.
  249. # Select ISA DMA controller support
  250. config ISA_DMA
  251. bool
  252. select ISA_DMA_API
  253. # Select ISA DMA interface
  254. config ISA_DMA_API
  255. bool
  256. config PCI
  257. bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB
  258. help
  259. Find out whether you have a PCI motherboard. PCI is the name of a
  260. bus system, i.e. the way the CPU talks to the other stuff inside
  261. your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
  262. VESA. If you have PCI, say Y, otherwise N.
  263. The PCI-HOWTO, available from
  264. <http://www.tldp.org/docs.html#howto>, contains valuable
  265. information about which PCI hardware does work under Linux and which
  266. doesn't.
  267. # Select the host bridge type
  268. config PCI_HOST_VIA82C505
  269. bool
  270. depends on PCI && ARCH_SHARK
  271. default y
  272. source "drivers/pci/Kconfig"
  273. source "drivers/pcmcia/Kconfig"
  274. endmenu
  275. menu "Kernel Features"
  276. config SMP
  277. bool "Symmetric Multi-Processing (EXPERIMENTAL)"
  278. depends on EXPERIMENTAL && REALVIEW_MPCORE
  279. help
  280. This enables support for systems with more than one CPU. If you have
  281. a system with only one CPU, like most personal computers, say N. If
  282. you have a system with more than one CPU, say Y.
  283. If you say N here, the kernel will run on single and multiprocessor
  284. machines, but will use only one CPU of a multiprocessor machine. If
  285. you say Y here, the kernel will run on many, but not all, single
  286. processor machines. On a single processor machine, the kernel will
  287. run faster if you say N here.
  288. See also the <file:Documentation/smp.txt>,
  289. <file:Documentation/i386/IO-APIC.txt>,
  290. <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
  291. <http://www.linuxdoc.org/docs.html#howto>.
  292. If you don't know what to do here, say N.
  293. config NR_CPUS
  294. int "Maximum number of CPUs (2-32)"
  295. range 2 32
  296. depends on SMP
  297. default "4"
  298. config HOTPLUG_CPU
  299. bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
  300. depends on SMP && HOTPLUG && EXPERIMENTAL
  301. help
  302. Say Y here to experiment with turning CPUs off and on. CPUs
  303. can be controlled through /sys/devices/system/cpu.
  304. config LOCAL_TIMERS
  305. bool "Use local timer interrupts"
  306. depends on SMP && REALVIEW_MPCORE
  307. default y
  308. help
  309. Enable support for local timers on SMP platforms, rather then the
  310. legacy IPI broadcast method. Local timers allows the system
  311. accounting to be spread across the timer interval, preventing a
  312. "thundering herd" at every timer tick.
  313. config PREEMPT
  314. bool "Preemptible Kernel (EXPERIMENTAL)"
  315. depends on EXPERIMENTAL
  316. help
  317. This option reduces the latency of the kernel when reacting to
  318. real-time or interactive events by allowing a low priority process to
  319. be preempted even if it is in kernel mode executing a system call.
  320. This allows applications to run more reliably even when the system is
  321. under load.
  322. Say Y here if you are building a kernel for a desktop, embedded
  323. or real-time system. Say N if you are unsure.
  324. config NO_IDLE_HZ
  325. bool "Dynamic tick timer"
  326. help
  327. Select this option if you want to disable continuous timer ticks
  328. and have them programmed to occur as required. This option saves
  329. power as the system can remain in idle state for longer.
  330. By default dynamic tick is disabled during the boot, and can be
  331. manually enabled with:
  332. echo 1 > /sys/devices/system/timer/timer0/dyn_tick
  333. Alternatively, if you want dynamic tick automatically enabled
  334. during boot, pass "dyntick=enable" via the kernel command string.
  335. Please note that dynamic tick may affect the accuracy of
  336. timekeeping on some platforms depending on the implementation.
  337. Currently at least OMAP, PXA2xx and SA11x0 platforms are known
  338. to have accurate timekeeping with dynamic tick.
  339. config AEABI
  340. bool "Use the ARM EABI to compile the kernel"
  341. help
  342. This option allows for the kernel to be compiled using the latest
  343. ARM ABI (aka EABI). This is only useful if you are using a user
  344. space environment that is also compiled with EABI.
  345. Since there are major incompatibilities between the legacy ABI and
  346. EABI, especially with regard to structure member alignment, this
  347. option also changes the kernel syscall calling convention to
  348. disambiguate both ABIs and allow for backward compatibility support
  349. (selected with CONFIG_OABI_COMPAT).
  350. To use this you need GCC version 4.0.0 or later.
  351. config OABI_COMPAT
  352. bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
  353. depends on AEABI && EXPERIMENTAL
  354. default y
  355. help
  356. This option preserves the old syscall interface along with the
  357. new (ARM EABI) one. It also provides a compatibility layer to
  358. intercept syscalls that have structure arguments which layout
  359. in memory differs between the legacy ABI and the new ARM EABI
  360. (only for non "thumb" binaries). This option adds a tiny
  361. overhead to all syscalls and produces a slightly larger kernel.
  362. If you know you'll be using only pure EABI user space then you
  363. can say N here. If this option is not selected and you attempt
  364. to execute a legacy ABI binary then the result will be
  365. UNPREDICTABLE (in fact it can be predicted that it won't work
  366. at all). If in doubt say Y.
  367. config ARCH_DISCONTIGMEM_ENABLE
  368. bool
  369. default (ARCH_LH7A40X && !LH7A40X_CONTIGMEM)
  370. help
  371. Say Y to support efficient handling of discontiguous physical memory,
  372. for architectures which are either NUMA (Non-Uniform Memory Access)
  373. or have huge holes in the physical address space for other reasons.
  374. See <file:Documentation/vm/numa> for more.
  375. source "mm/Kconfig"
  376. config LEDS
  377. bool "Timer and CPU usage LEDs"
  378. depends on ARCH_CDB89712 || ARCH_CO285 || ARCH_EBSA110 || \
  379. ARCH_EBSA285 || ARCH_IMX || ARCH_INTEGRATOR || \
  380. ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
  381. ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
  382. ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
  383. ARCH_AT91RM9200
  384. help
  385. If you say Y here, the LEDs on your machine will be used
  386. to provide useful information about your current system status.
  387. If you are compiling a kernel for a NetWinder or EBSA-285, you will
  388. be able to select which LEDs are active using the options below. If
  389. you are compiling a kernel for the EBSA-110 or the LART however, the
  390. red LED will simply flash regularly to indicate that the system is
  391. still functional. It is safe to say Y here if you have a CATS
  392. system, but the driver will do nothing.
  393. config LEDS_TIMER
  394. bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
  395. MACH_OMAP_H2 || MACH_OMAP_PERSEUS2
  396. depends on LEDS
  397. default y if ARCH_EBSA110
  398. help
  399. If you say Y here, one of the system LEDs (the green one on the
  400. NetWinder, the amber one on the EBSA285, or the red one on the LART)
  401. will flash regularly to indicate that the system is still
  402. operational. This is mainly useful to kernel hackers who are
  403. debugging unstable kernels.
  404. The LART uses the same LED for both Timer LED and CPU usage LED
  405. functions. You may choose to use both, but the Timer LED function
  406. will overrule the CPU usage LED.
  407. config LEDS_CPU
  408. bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
  409. !ARCH_OMAP) || MACH_OMAP_H2 || MACH_OMAP_PERSEUS2
  410. depends on LEDS
  411. help
  412. If you say Y here, the red LED will be used to give a good real
  413. time indication of CPU usage, by lighting whenever the idle task
  414. is not currently executing.
  415. The LART uses the same LED for both Timer LED and CPU usage LED
  416. functions. You may choose to use both, but the Timer LED function
  417. will overrule the CPU usage LED.
  418. config ALIGNMENT_TRAP
  419. bool
  420. default y if !ARCH_EBSA110
  421. help
  422. ARM processors can not fetch/store information which is not
  423. naturally aligned on the bus, i.e., a 4 byte fetch must start at an
  424. address divisible by 4. On 32-bit ARM processors, these non-aligned
  425. fetch/store instructions will be emulated in software if you say
  426. here, which has a severe performance impact. This is necessary for
  427. correct operation of some network protocols. With an IP-only
  428. configuration it is safe to say N, otherwise say Y.
  429. endmenu
  430. menu "Boot options"
  431. # Compressed boot loader in ROM. Yes, we really want to ask about
  432. # TEXT and BSS so we preserve their values in the config files.
  433. config ZBOOT_ROM_TEXT
  434. hex "Compressed ROM boot loader base address"
  435. default "0"
  436. help
  437. The physical address at which the ROM-able zImage is to be
  438. placed in the target. Platforms which normally make use of
  439. ROM-able zImage formats normally set this to a suitable
  440. value in their defconfig file.
  441. If ZBOOT_ROM is not enabled, this has no effect.
  442. config ZBOOT_ROM_BSS
  443. hex "Compressed ROM boot loader BSS address"
  444. default "0"
  445. help
  446. The base address of 64KiB of read/write memory in the target
  447. for the ROM-able zImage, which must be available while the
  448. decompressor is running. Platforms which normally make use of
  449. ROM-able zImage formats normally set this to a suitable
  450. value in their defconfig file.
  451. If ZBOOT_ROM is not enabled, this has no effect.
  452. config ZBOOT_ROM
  453. bool "Compressed boot loader in ROM/flash"
  454. depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
  455. help
  456. Say Y here if you intend to execute your compressed kernel image
  457. (zImage) directly from ROM or flash. If unsure, say N.
  458. config CMDLINE
  459. string "Default kernel command string"
  460. default ""
  461. help
  462. On some architectures (EBSA110 and CATS), there is currently no way
  463. for the boot loader to pass arguments to the kernel. For these
  464. architectures, you should supply some command-line options at build
  465. time by entering them here. As a minimum, you should specify the
  466. memory size and the root device (e.g., mem=64M root=/dev/nfs).
  467. config XIP_KERNEL
  468. bool "Kernel Execute-In-Place from ROM"
  469. depends on !ZBOOT_ROM
  470. help
  471. Execute-In-Place allows the kernel to run from non-volatile storage
  472. directly addressable by the CPU, such as NOR flash. This saves RAM
  473. space since the text section of the kernel is not loaded from flash
  474. to RAM. Read-write sections, such as the data section and stack,
  475. are still copied to RAM. The XIP kernel is not compressed since
  476. it has to run directly from flash, so it will take more space to
  477. store it. The flash address used to link the kernel object files,
  478. and for storing it, is configuration dependent. Therefore, if you
  479. say Y here, you must know the proper physical address where to
  480. store the kernel image depending on your own flash memory usage.
  481. Also note that the make target becomes "make xipImage" rather than
  482. "make zImage" or "make Image". The final kernel binary to put in
  483. ROM memory will be arch/arm/boot/xipImage.
  484. If unsure, say N.
  485. config XIP_PHYS_ADDR
  486. hex "XIP Kernel Physical Location"
  487. depends on XIP_KERNEL
  488. default "0x00080000"
  489. help
  490. This is the physical address in your flash memory the kernel will
  491. be linked for and stored to. This address is dependent on your
  492. own flash usage.
  493. endmenu
  494. if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP1)
  495. menu "CPU Frequency scaling"
  496. source "drivers/cpufreq/Kconfig"
  497. config CPU_FREQ_SA1100
  498. bool
  499. depends on CPU_FREQ && (SA1100_H3100 || SA1100_H3600 || SA1100_H3800 || SA1100_LART || SA1100_PLEB || SA1100_BADGE4 || SA1100_HACKKIT)
  500. default y
  501. config CPU_FREQ_SA1110
  502. bool
  503. depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
  504. default y
  505. config CPU_FREQ_INTEGRATOR
  506. tristate "CPUfreq driver for ARM Integrator CPUs"
  507. depends on ARCH_INTEGRATOR && CPU_FREQ
  508. default y
  509. help
  510. This enables the CPUfreq driver for ARM Integrator CPUs.
  511. For details, take a look at <file:Documentation/cpu-freq>.
  512. If in doubt, say Y.
  513. endmenu
  514. endif
  515. menu "Floating point emulation"
  516. comment "At least one emulation must be selected"
  517. config FPE_NWFPE
  518. bool "NWFPE math emulation"
  519. depends on !AEABI || OABI_COMPAT
  520. ---help---
  521. Say Y to include the NWFPE floating point emulator in the kernel.
  522. This is necessary to run most binaries. Linux does not currently
  523. support floating point hardware so you need to say Y here even if
  524. your machine has an FPA or floating point co-processor podule.
  525. You may say N here if you are going to load the Acorn FPEmulator
  526. early in the bootup.
  527. config FPE_NWFPE_XP
  528. bool "Support extended precision"
  529. depends on FPE_NWFPE
  530. help
  531. Say Y to include 80-bit support in the kernel floating-point
  532. emulator. Otherwise, only 32 and 64-bit support is compiled in.
  533. Note that gcc does not generate 80-bit operations by default,
  534. so in most cases this option only enlarges the size of the
  535. floating point emulator without any good reason.
  536. You almost surely want to say N here.
  537. config FPE_FASTFPE
  538. bool "FastFPE math emulation (EXPERIMENTAL)"
  539. depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
  540. ---help---
  541. Say Y here to include the FAST floating point emulator in the kernel.
  542. This is an experimental much faster emulator which now also has full
  543. precision for the mantissa. It does not support any exceptions.
  544. It is very simple, and approximately 3-6 times faster than NWFPE.
  545. It should be sufficient for most programs. It may be not suitable
  546. for scientific calculations, but you have to check this for yourself.
  547. If you do not feel you need a faster FP emulation you should better
  548. choose NWFPE.
  549. config VFP
  550. bool "VFP-format floating point maths"
  551. depends on CPU_V6 || CPU_ARM926T
  552. help
  553. Say Y to include VFP support code in the kernel. This is needed
  554. if your hardware includes a VFP unit.
  555. Please see <file:Documentation/arm/VFP/release-notes.txt> for
  556. release notes and additional status information.
  557. Say N if your target does not have VFP hardware.
  558. endmenu
  559. menu "Userspace binary formats"
  560. source "fs/Kconfig.binfmt"
  561. config ARTHUR
  562. tristate "RISC OS personality"
  563. depends on !AEABI
  564. help
  565. Say Y here to include the kernel code necessary if you want to run
  566. Acorn RISC OS/Arthur binaries under Linux. This code is still very
  567. experimental; if this sounds frightening, say N and sleep in peace.
  568. You can also say M here to compile this support as a module (which
  569. will be called arthur).
  570. endmenu
  571. menu "Power management options"
  572. source "kernel/power/Kconfig"
  573. config APM
  574. tristate "Advanced Power Management Emulation"
  575. ---help---
  576. APM is a BIOS specification for saving power using several different
  577. techniques. This is mostly useful for battery powered laptops with
  578. APM compliant BIOSes. If you say Y here, the system time will be
  579. reset after a RESUME operation, the /proc/apm device will provide
  580. battery status information, and user-space programs will receive
  581. notification of APM "events" (e.g. battery status change).
  582. In order to use APM, you will need supporting software. For location
  583. and more information, read <file:Documentation/pm.txt> and the
  584. Battery Powered Linux mini-HOWTO, available from
  585. <http://www.tldp.org/docs.html#howto>.
  586. This driver does not spin down disk drives (see the hdparm(8)
  587. manpage ("man 8 hdparm") for that), and it doesn't turn off
  588. VESA-compliant "green" monitors.
  589. Generally, if you don't have a battery in your machine, there isn't
  590. much point in using this driver and you should say N. If you get
  591. random kernel OOPSes or reboots that don't seem to be related to
  592. anything, try disabling/enabling this option (or disabling/enabling
  593. APM in your BIOS).
  594. endmenu
  595. source "net/Kconfig"
  596. menu "Device Drivers"
  597. source "drivers/base/Kconfig"
  598. source "drivers/connector/Kconfig"
  599. if ALIGNMENT_TRAP
  600. source "drivers/mtd/Kconfig"
  601. endif
  602. source "drivers/parport/Kconfig"
  603. source "drivers/pnp/Kconfig"
  604. source "drivers/block/Kconfig"
  605. source "drivers/acorn/block/Kconfig"
  606. if PCMCIA || ARCH_CLPS7500 || ARCH_IOP3XX || ARCH_IXP4XX \
  607. || ARCH_L7200 || ARCH_LH7A40X || ARCH_PXA || ARCH_RPC \
  608. || ARCH_S3C2410 || ARCH_SA1100 || ARCH_SHARK || FOOTBRIDGE
  609. source "drivers/ide/Kconfig"
  610. endif
  611. source "drivers/scsi/Kconfig"
  612. source "drivers/md/Kconfig"
  613. source "drivers/message/fusion/Kconfig"
  614. source "drivers/ieee1394/Kconfig"
  615. source "drivers/message/i2o/Kconfig"
  616. source "drivers/net/Kconfig"
  617. source "drivers/isdn/Kconfig"
  618. # input before char - char/joystick depends on it. As does USB.
  619. source "drivers/input/Kconfig"
  620. source "drivers/char/Kconfig"
  621. source "drivers/i2c/Kconfig"
  622. source "drivers/spi/Kconfig"
  623. source "drivers/w1/Kconfig"
  624. source "drivers/hwmon/Kconfig"
  625. #source "drivers/l3/Kconfig"
  626. source "drivers/misc/Kconfig"
  627. source "drivers/mfd/Kconfig"
  628. source "drivers/media/Kconfig"
  629. source "drivers/video/Kconfig"
  630. source "sound/Kconfig"
  631. source "drivers/usb/Kconfig"
  632. source "drivers/mmc/Kconfig"
  633. endmenu
  634. source "fs/Kconfig"
  635. source "arch/arm/oprofile/Kconfig"
  636. source "arch/arm/Kconfig.debug"
  637. source "security/Kconfig"
  638. source "crypto/Kconfig"
  639. source "lib/Kconfig"