Kconfig 21 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753754755756757758759760761762763764
  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. source "init/Kconfig"
  56. menu "System Type"
  57. choice
  58. prompt "ARM system type"
  59. default ARCH_RPC
  60. config ARCH_CLPS7500
  61. bool "Cirrus-CL-PS7500FE"
  62. select TIMER_ACORN
  63. select ISA
  64. config ARCH_CLPS711X
  65. bool "CLPS711x/EP721x-based"
  66. config ARCH_CO285
  67. bool "Co-EBSA285"
  68. select FOOTBRIDGE
  69. select FOOTBRIDGE_ADDIN
  70. config ARCH_EBSA110
  71. bool "EBSA-110"
  72. select ISA
  73. help
  74. This is an evaluation board for the StrongARM processor available
  75. from Digital. It has limited hardware on-board, including an onboard
  76. Ethernet interface, two PCMCIA sockets, two serial ports and a
  77. parallel port.
  78. config ARCH_FOOTBRIDGE
  79. bool "FootBridge"
  80. select FOOTBRIDGE
  81. config ARCH_INTEGRATOR
  82. bool "Integrator"
  83. select ARM_AMBA
  84. select ICST525
  85. config ARCH_IOP3XX
  86. bool "IOP3xx-based"
  87. select PCI
  88. config ARCH_IXP4XX
  89. bool "IXP4xx-based"
  90. select DMABOUNCE
  91. select PCI
  92. config ARCH_IXP2000
  93. bool "IXP2400/2800-based"
  94. select PCI
  95. config ARCH_L7200
  96. bool "LinkUp-L7200"
  97. select FIQ
  98. help
  99. Say Y here if you intend to run this kernel on a LinkUp Systems
  100. L7200 Software Development Board which uses an ARM720T processor.
  101. Information on this board can be obtained at:
  102. <http://www.linkupsys.com/>
  103. If you have any questions or comments about the Linux kernel port
  104. to this board, send e-mail to <sjhill@cotw.com>.
  105. config ARCH_PXA
  106. bool "PXA2xx-based"
  107. config ARCH_RPC
  108. bool "RiscPC"
  109. select ARCH_ACORN
  110. select FIQ
  111. select TIMER_ACORN
  112. select ARCH_MAY_HAVE_PC_FDC
  113. select ISA_DMA_API
  114. help
  115. On the Acorn Risc-PC, Linux can support the internal IDE disk and
  116. CD-ROM interface, serial and parallel port, and the floppy drive.
  117. config ARCH_SA1100
  118. bool "SA1100-based"
  119. select ISA
  120. select ARCH_DISCONTIGMEM_ENABLE
  121. config ARCH_S3C2410
  122. bool "Samsung S3C2410"
  123. help
  124. Samsung S3C2410X CPU based systems, such as the Simtec Electronics
  125. BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
  126. the Samsung SMDK2410 development board (and derviatives).
  127. config ARCH_SHARK
  128. bool "Shark"
  129. select ISA
  130. select ISA_DMA
  131. select PCI
  132. config ARCH_LH7A40X
  133. bool "Sharp LH7A40X"
  134. help
  135. Say Y here for systems based on one of the Sharp LH7A40X
  136. System on a Chip processors. These CPUs include an ARM922T
  137. core with a wide array of integrated devices for
  138. hand-held and low-power applications.
  139. config ARCH_OMAP
  140. bool "TI OMAP"
  141. config ARCH_VERSATILE
  142. bool "Versatile"
  143. select ARM_AMBA
  144. select ICST307
  145. help
  146. This enables support for ARM Ltd Versatile board.
  147. config ARCH_REALVIEW
  148. bool "RealView"
  149. select ARM_AMBA
  150. select ICST307
  151. help
  152. This enables support for ARM Ltd RealView boards.
  153. config ARCH_IMX
  154. bool "IMX"
  155. config ARCH_H720X
  156. bool "Hynix-HMS720x-based"
  157. select ISA_DMA_API
  158. help
  159. This enables support for systems based on the Hynix HMS720x
  160. config ARCH_AAEC2000
  161. bool "Agilent AAEC-2000 based"
  162. select ARM_AMBA
  163. help
  164. This enables support for systems based on the Agilent AAEC-2000
  165. config ARCH_AT91RM9200
  166. bool "AT91RM9200"
  167. help
  168. Say Y here if you intend to run this kernel on an AT91RM9200-based
  169. board.
  170. endchoice
  171. source "arch/arm/mach-clps711x/Kconfig"
  172. source "arch/arm/mach-footbridge/Kconfig"
  173. source "arch/arm/mach-integrator/Kconfig"
  174. source "arch/arm/mach-iop3xx/Kconfig"
  175. source "arch/arm/mach-ixp4xx/Kconfig"
  176. source "arch/arm/mach-ixp2000/Kconfig"
  177. source "arch/arm/mach-pxa/Kconfig"
  178. source "arch/arm/mach-sa1100/Kconfig"
  179. source "arch/arm/plat-omap/Kconfig"
  180. source "arch/arm/mach-omap1/Kconfig"
  181. source "arch/arm/mach-omap2/Kconfig"
  182. source "arch/arm/mach-s3c2410/Kconfig"
  183. source "arch/arm/mach-lh7a40x/Kconfig"
  184. source "arch/arm/mach-imx/Kconfig"
  185. source "arch/arm/mach-h720x/Kconfig"
  186. source "arch/arm/mach-versatile/Kconfig"
  187. source "arch/arm/mach-aaec2000/Kconfig"
  188. source "arch/arm/mach-realview/Kconfig"
  189. source "arch/arm/mach-at91rm9200/Kconfig"
  190. # Definitions to make life easier
  191. config ARCH_ACORN
  192. bool
  193. source arch/arm/mm/Kconfig
  194. # bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
  195. config XSCALE_PMU
  196. bool
  197. depends on CPU_XSCALE && !XSCALE_PMU_TIMER
  198. default y
  199. endmenu
  200. source "arch/arm/common/Kconfig"
  201. config FORCE_MAX_ZONEORDER
  202. int
  203. depends on SA1111
  204. default "9"
  205. menu "Bus support"
  206. config ARM_AMBA
  207. bool
  208. config ISA
  209. bool
  210. help
  211. Find out whether you have ISA slots on your motherboard. ISA is the
  212. name of a bus system, i.e. the way the CPU talks to the other stuff
  213. inside your box. Other bus systems are PCI, EISA, MicroChannel
  214. (MCA) or VESA. ISA is an older system, now being displaced by PCI;
  215. newer boards don't support it. If you have ISA, say Y, otherwise N.
  216. # Select ISA DMA controller support
  217. config ISA_DMA
  218. bool
  219. select ISA_DMA_API
  220. # Select ISA DMA interface
  221. config ISA_DMA_API
  222. bool
  223. config PCI
  224. bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB
  225. help
  226. Find out whether you have a PCI motherboard. PCI is the name of a
  227. bus system, i.e. the way the CPU talks to the other stuff inside
  228. your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
  229. VESA. If you have PCI, say Y, otherwise N.
  230. The PCI-HOWTO, available from
  231. <http://www.tldp.org/docs.html#howto>, contains valuable
  232. information about which PCI hardware does work under Linux and which
  233. doesn't.
  234. # Select the host bridge type
  235. config PCI_HOST_VIA82C505
  236. bool
  237. depends on PCI && ARCH_SHARK
  238. default y
  239. source "drivers/pci/Kconfig"
  240. source "drivers/pcmcia/Kconfig"
  241. endmenu
  242. menu "Kernel Features"
  243. config SMP
  244. bool "Symmetric Multi-Processing (EXPERIMENTAL)"
  245. depends on EXPERIMENTAL && REALVIEW_MPCORE
  246. help
  247. This enables support for systems with more than one CPU. If you have
  248. a system with only one CPU, like most personal computers, say N. If
  249. you have a system with more than one CPU, say Y.
  250. If you say N here, the kernel will run on single and multiprocessor
  251. machines, but will use only one CPU of a multiprocessor machine. If
  252. you say Y here, the kernel will run on many, but not all, single
  253. processor machines. On a single processor machine, the kernel will
  254. run faster if you say N here.
  255. See also the <file:Documentation/smp.txt>,
  256. <file:Documentation/i386/IO-APIC.txt>,
  257. <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
  258. <http://www.linuxdoc.org/docs.html#howto>.
  259. If you don't know what to do here, say N.
  260. config NR_CPUS
  261. int "Maximum number of CPUs (2-32)"
  262. range 2 32
  263. depends on SMP
  264. default "4"
  265. config HOTPLUG_CPU
  266. bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
  267. depends on SMP && HOTPLUG && EXPERIMENTAL
  268. help
  269. Say Y here to experiment with turning CPUs off and on. CPUs
  270. can be controlled through /sys/devices/system/cpu.
  271. config LOCAL_TIMERS
  272. bool "Use local timer interrupts"
  273. depends on SMP && REALVIEW_MPCORE
  274. default y
  275. help
  276. Enable support for local timers on SMP platforms, rather then the
  277. legacy IPI broadcast method. Local timers allows the system
  278. accounting to be spread across the timer interval, preventing a
  279. "thundering herd" at every timer tick.
  280. config PREEMPT
  281. bool "Preemptible Kernel (EXPERIMENTAL)"
  282. depends on EXPERIMENTAL
  283. help
  284. This option reduces the latency of the kernel when reacting to
  285. real-time or interactive events by allowing a low priority process to
  286. be preempted even if it is in kernel mode executing a system call.
  287. This allows applications to run more reliably even when the system is
  288. under load.
  289. Say Y here if you are building a kernel for a desktop, embedded
  290. or real-time system. Say N if you are unsure.
  291. config NO_IDLE_HZ
  292. bool "Dynamic tick timer"
  293. help
  294. Select this option if you want to disable continuous timer ticks
  295. and have them programmed to occur as required. This option saves
  296. power as the system can remain in idle state for longer.
  297. By default dynamic tick is disabled during the boot, and can be
  298. manually enabled with:
  299. echo 1 > /sys/devices/system/timer/timer0/dyn_tick
  300. Alternatively, if you want dynamic tick automatically enabled
  301. during boot, pass "dyntick=enable" via the kernel command string.
  302. Please note that dynamic tick may affect the accuracy of
  303. timekeeping on some platforms depending on the implementation.
  304. Currently at least OMAP, PXA2xx and SA11x0 platforms are known
  305. to have accurate timekeeping with dynamic tick.
  306. config ARCH_DISCONTIGMEM_ENABLE
  307. bool
  308. default (ARCH_LH7A40X && !LH7A40X_CONTIGMEM)
  309. help
  310. Say Y to support efficient handling of discontiguous physical memory,
  311. for architectures which are either NUMA (Non-Uniform Memory Access)
  312. or have huge holes in the physical address space for other reasons.
  313. See <file:Documentation/vm/numa> for more.
  314. source "mm/Kconfig"
  315. config LEDS
  316. bool "Timer and CPU usage LEDs"
  317. depends on ARCH_CDB89712 || ARCH_CO285 || ARCH_EBSA110 || \
  318. ARCH_EBSA285 || ARCH_IMX || ARCH_INTEGRATOR || \
  319. ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
  320. ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
  321. ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
  322. ARCH_AT91RM9200
  323. help
  324. If you say Y here, the LEDs on your machine will be used
  325. to provide useful information about your current system status.
  326. If you are compiling a kernel for a NetWinder or EBSA-285, you will
  327. be able to select which LEDs are active using the options below. If
  328. you are compiling a kernel for the EBSA-110 or the LART however, the
  329. red LED will simply flash regularly to indicate that the system is
  330. still functional. It is safe to say Y here if you have a CATS
  331. system, but the driver will do nothing.
  332. config LEDS_TIMER
  333. bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
  334. MACH_OMAP_H2 || MACH_OMAP_PERSEUS2
  335. depends on LEDS
  336. default y if ARCH_EBSA110
  337. help
  338. If you say Y here, one of the system LEDs (the green one on the
  339. NetWinder, the amber one on the EBSA285, or the red one on the LART)
  340. will flash regularly to indicate that the system is still
  341. operational. This is mainly useful to kernel hackers who are
  342. debugging unstable kernels.
  343. The LART uses the same LED for both Timer LED and CPU usage LED
  344. functions. You may choose to use both, but the Timer LED function
  345. will overrule the CPU usage LED.
  346. config LEDS_CPU
  347. bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
  348. !ARCH_OMAP) || MACH_OMAP_H2 || MACH_OMAP_PERSEUS2
  349. depends on LEDS
  350. help
  351. If you say Y here, the red LED will be used to give a good real
  352. time indication of CPU usage, by lighting whenever the idle task
  353. is not currently executing.
  354. The LART uses the same LED for both Timer LED and CPU usage LED
  355. functions. You may choose to use both, but the Timer LED function
  356. will overrule the CPU usage LED.
  357. config ALIGNMENT_TRAP
  358. bool
  359. default y if !ARCH_EBSA110
  360. help
  361. ARM processors can not fetch/store information which is not
  362. naturally aligned on the bus, i.e., a 4 byte fetch must start at an
  363. address divisible by 4. On 32-bit ARM processors, these non-aligned
  364. fetch/store instructions will be emulated in software if you say
  365. here, which has a severe performance impact. This is necessary for
  366. correct operation of some network protocols. With an IP-only
  367. configuration it is safe to say N, otherwise say Y.
  368. endmenu
  369. menu "Boot options"
  370. # Compressed boot loader in ROM. Yes, we really want to ask about
  371. # TEXT and BSS so we preserve their values in the config files.
  372. config ZBOOT_ROM_TEXT
  373. hex "Compressed ROM boot loader base address"
  374. default "0"
  375. help
  376. The physical address at which the ROM-able zImage is to be
  377. placed in the target. Platforms which normally make use of
  378. ROM-able zImage formats normally set this to a suitable
  379. value in their defconfig file.
  380. If ZBOOT_ROM is not enabled, this has no effect.
  381. config ZBOOT_ROM_BSS
  382. hex "Compressed ROM boot loader BSS address"
  383. default "0"
  384. help
  385. The base address of 64KiB of read/write memory in the target
  386. for the ROM-able zImage, which must be available while the
  387. decompressor is running. Platforms which normally make use of
  388. ROM-able zImage formats normally set this to a suitable
  389. value in their defconfig file.
  390. If ZBOOT_ROM is not enabled, this has no effect.
  391. config ZBOOT_ROM
  392. bool "Compressed boot loader in ROM/flash"
  393. depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
  394. help
  395. Say Y here if you intend to execute your compressed kernel image
  396. (zImage) directly from ROM or flash. If unsure, say N.
  397. config CMDLINE
  398. string "Default kernel command string"
  399. default ""
  400. help
  401. On some architectures (EBSA110 and CATS), there is currently no way
  402. for the boot loader to pass arguments to the kernel. For these
  403. architectures, you should supply some command-line options at build
  404. time by entering them here. As a minimum, you should specify the
  405. memory size and the root device (e.g., mem=64M root=/dev/nfs).
  406. config XIP_KERNEL
  407. bool "Kernel Execute-In-Place from ROM"
  408. depends on !ZBOOT_ROM
  409. help
  410. Execute-In-Place allows the kernel to run from non-volatile storage
  411. directly addressable by the CPU, such as NOR flash. This saves RAM
  412. space since the text section of the kernel is not loaded from flash
  413. to RAM. Read-write sections, such as the data section and stack,
  414. are still copied to RAM. The XIP kernel is not compressed since
  415. it has to run directly from flash, so it will take more space to
  416. store it. The flash address used to link the kernel object files,
  417. and for storing it, is configuration dependent. Therefore, if you
  418. say Y here, you must know the proper physical address where to
  419. store the kernel image depending on your own flash memory usage.
  420. Also note that the make target becomes "make xipImage" rather than
  421. "make zImage" or "make Image". The final kernel binary to put in
  422. ROM memory will be arch/arm/boot/xipImage.
  423. If unsure, say N.
  424. config XIP_PHYS_ADDR
  425. hex "XIP Kernel Physical Location"
  426. depends on XIP_KERNEL
  427. default "0x00080000"
  428. help
  429. This is the physical address in your flash memory the kernel will
  430. be linked for and stored to. This address is dependent on your
  431. own flash usage.
  432. endmenu
  433. if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP1)
  434. menu "CPU Frequency scaling"
  435. source "drivers/cpufreq/Kconfig"
  436. config CPU_FREQ_SA1100
  437. bool
  438. depends on CPU_FREQ && (SA1100_H3100 || SA1100_H3600 || SA1100_H3800 || SA1100_LART || SA1100_PLEB || SA1100_BADGE4 || SA1100_HACKKIT)
  439. default y
  440. config CPU_FREQ_SA1110
  441. bool
  442. depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
  443. default y
  444. config CPU_FREQ_INTEGRATOR
  445. tristate "CPUfreq driver for ARM Integrator CPUs"
  446. depends on ARCH_INTEGRATOR && CPU_FREQ
  447. default y
  448. help
  449. This enables the CPUfreq driver for ARM Integrator CPUs.
  450. For details, take a look at <file:Documentation/cpu-freq>.
  451. If in doubt, say Y.
  452. endmenu
  453. endif
  454. menu "Floating point emulation"
  455. comment "At least one emulation must be selected"
  456. config FPE_NWFPE
  457. bool "NWFPE math emulation"
  458. ---help---
  459. Say Y to include the NWFPE floating point emulator in the kernel.
  460. This is necessary to run most binaries. Linux does not currently
  461. support floating point hardware so you need to say Y here even if
  462. your machine has an FPA or floating point co-processor podule.
  463. You may say N here if you are going to load the Acorn FPEmulator
  464. early in the bootup.
  465. config FPE_NWFPE_XP
  466. bool "Support extended precision"
  467. depends on FPE_NWFPE
  468. help
  469. Say Y to include 80-bit support in the kernel floating-point
  470. emulator. Otherwise, only 32 and 64-bit support is compiled in.
  471. Note that gcc does not generate 80-bit operations by default,
  472. so in most cases this option only enlarges the size of the
  473. floating point emulator without any good reason.
  474. You almost surely want to say N here.
  475. config FPE_FASTFPE
  476. bool "FastFPE math emulation (EXPERIMENTAL)"
  477. depends on !CPU_32v3 && EXPERIMENTAL
  478. ---help---
  479. Say Y here to include the FAST floating point emulator in the kernel.
  480. This is an experimental much faster emulator which now also has full
  481. precision for the mantissa. It does not support any exceptions.
  482. It is very simple, and approximately 3-6 times faster than NWFPE.
  483. It should be sufficient for most programs. It may be not suitable
  484. for scientific calculations, but you have to check this for yourself.
  485. If you do not feel you need a faster FP emulation you should better
  486. choose NWFPE.
  487. config VFP
  488. bool "VFP-format floating point maths"
  489. depends on CPU_V6 || CPU_ARM926T
  490. help
  491. Say Y to include VFP support code in the kernel. This is needed
  492. if your hardware includes a VFP unit.
  493. Please see <file:Documentation/arm/VFP/release-notes.txt> for
  494. release notes and additional status information.
  495. Say N if your target does not have VFP hardware.
  496. endmenu
  497. menu "Userspace binary formats"
  498. source "fs/Kconfig.binfmt"
  499. config ARTHUR
  500. tristate "RISC OS personality"
  501. help
  502. Say Y here to include the kernel code necessary if you want to run
  503. Acorn RISC OS/Arthur binaries under Linux. This code is still very
  504. experimental; if this sounds frightening, say N and sleep in peace.
  505. You can also say M here to compile this support as a module (which
  506. will be called arthur).
  507. endmenu
  508. menu "Power management options"
  509. source "kernel/power/Kconfig"
  510. config APM
  511. tristate "Advanced Power Management Emulation"
  512. ---help---
  513. APM is a BIOS specification for saving power using several different
  514. techniques. This is mostly useful for battery powered laptops with
  515. APM compliant BIOSes. If you say Y here, the system time will be
  516. reset after a RESUME operation, the /proc/apm device will provide
  517. battery status information, and user-space programs will receive
  518. notification of APM "events" (e.g. battery status change).
  519. In order to use APM, you will need supporting software. For location
  520. and more information, read <file:Documentation/pm.txt> and the
  521. Battery Powered Linux mini-HOWTO, available from
  522. <http://www.tldp.org/docs.html#howto>.
  523. This driver does not spin down disk drives (see the hdparm(8)
  524. manpage ("man 8 hdparm") for that), and it doesn't turn off
  525. VESA-compliant "green" monitors.
  526. Generally, if you don't have a battery in your machine, there isn't
  527. much point in using this driver and you should say N. If you get
  528. random kernel OOPSes or reboots that don't seem to be related to
  529. anything, try disabling/enabling this option (or disabling/enabling
  530. APM in your BIOS).
  531. endmenu
  532. source "net/Kconfig"
  533. menu "Device Drivers"
  534. source "drivers/base/Kconfig"
  535. source "drivers/connector/Kconfig"
  536. if ALIGNMENT_TRAP
  537. source "drivers/mtd/Kconfig"
  538. endif
  539. source "drivers/parport/Kconfig"
  540. source "drivers/pnp/Kconfig"
  541. source "drivers/block/Kconfig"
  542. source "drivers/acorn/block/Kconfig"
  543. if PCMCIA || ARCH_CLPS7500 || ARCH_IOP3XX || ARCH_IXP4XX \
  544. || ARCH_L7200 || ARCH_LH7A40X || ARCH_PXA || ARCH_RPC \
  545. || ARCH_S3C2410 || ARCH_SA1100 || ARCH_SHARK || FOOTBRIDGE
  546. source "drivers/ide/Kconfig"
  547. endif
  548. source "drivers/scsi/Kconfig"
  549. source "drivers/md/Kconfig"
  550. source "drivers/message/fusion/Kconfig"
  551. source "drivers/ieee1394/Kconfig"
  552. source "drivers/message/i2o/Kconfig"
  553. source "drivers/net/Kconfig"
  554. source "drivers/isdn/Kconfig"
  555. # input before char - char/joystick depends on it. As does USB.
  556. source "drivers/input/Kconfig"
  557. source "drivers/char/Kconfig"
  558. source "drivers/i2c/Kconfig"
  559. source "drivers/spi/Kconfig"
  560. source "drivers/hwmon/Kconfig"
  561. #source "drivers/l3/Kconfig"
  562. source "drivers/misc/Kconfig"
  563. source "drivers/mfd/Kconfig"
  564. source "drivers/media/Kconfig"
  565. source "drivers/video/Kconfig"
  566. source "sound/Kconfig"
  567. source "drivers/usb/Kconfig"
  568. source "drivers/mmc/Kconfig"
  569. endmenu
  570. source "fs/Kconfig"
  571. source "arch/arm/oprofile/Kconfig"
  572. source "arch/arm/Kconfig.debug"
  573. source "security/Kconfig"
  574. source "crypto/Kconfig"
  575. source "lib/Kconfig"