Kconfig 30 KB

12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091929394959697989910010110210310410510610710810911011111211311411511611711811912012112212312412512612712812913013113213313413513613713813914014114214314414514614714814915015115215315415515615715815916016116216316416516616716816917017117217317417517617717817918018118218318418518618718818919019119219319419519619719819920020120220320420520620720820921021121221321421521621721821922022122222322422522622722822923023123223323423523623723823924024124224324424524624724824925025125225325425525625725825926026126226326426526626726826927027127227327427527627727827928028128228328428528628728828929029129229329429529629729829930030130230330430530630730830931031131231331431531631731831932032132232332432532632732832933033133233333433533633733833934034134234334434534634734834935035135235335435535635735835936036136236336436536636736836937037137237337437537637737837938038138238338438538638738838939039139239339439539639739839940040140240340440540640740840941041141241341441541641741841942042142242342442542642742842943043143243343443543643743843944044144244344444544644744844945045145245345445545645745845946046146246346446546646746846947047147247347447547647747847948048148248348448548648748848949049149249349449549649749849950050150250350450550650750850951051151251351451551651751851952052152252352452552652752852953053153253353453553653753853954054154254354454554654754854955055155255355455555655755855956056156256356456556656756856957057157257357457557657757857958058158258358458558658758858959059159259359459559659759859960060160260360460560660760860961061161261361461561661761861962062162262362462562662762862963063163263363463563663763863964064164264364464564664764864965065165265365465565665765865966066166266366466566666766866967067167267367467567667767867968068168268368468568668768868969069169269369469569669769869970070170270370470570670770870971071171271371471571671771871972072172272372472572672772872973073173273373473573673773873974074174274374474574674774874975075175275375475575675775875976076176276376476576676776876977077177277377477577677777877978078178278378478578678778878979079179279379479579679779879980080180280380480580680780880981081181281381481581681781881982082182282382482582682782882983083183283383483583683783883984084184284384484584684784884985085185285385485585685785885986086186286386486586686786886987087187287387487587687787887988088188288388488588688788888989089189289389489589689789889990090190290390490590690790890991091191291391491591691791891992092192292392492592692792892993093193293393493593693793893994094194294394494594694794894995095195295395495595695795895996096196296396496596696796896997097197297397497597697797897998098198298398498598698798898999099199299399499599699799899910001001100210031004100510061007100810091010101110121013101410151016101710181019102010211022102310241025102610271028102910301031103210331034103510361037103810391040104110421043104410451046104710481049105010511052105310541055105610571058105910601061106210631064106510661067106810691070107110721073107410751076107710781079108010811082108310841085108610871088108910901091109210931094109510961097109810991100110111021103110411051106110711081109111011111112111311141115111611171118111911201121112211231124112511261127112811291130113111321133113411351136113711381139114011411142114311441145114611471148114911501151115211531154115511561157115811591160116111621163116411651166116711681169117011711172117311741175117611771178117911801181118211831184118511861187118811891190119111921193119411951196119711981199120012011202120312041205120612071208120912101211121212131214121512161217121812191220122112221223122412251226
  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. select HAVE_IDE
  10. select RTC_LIB
  11. select SYS_SUPPORTS_APM_EMULATION
  12. select HAVE_OPROFILE
  13. select HAVE_ARCH_KGDB
  14. select HAVE_KPROBES if (!XIP_KERNEL)
  15. select HAVE_KRETPROBES if (HAVE_KPROBES)
  16. select HAVE_FTRACE if (!XIP_KERNEL)
  17. select HAVE_DYNAMIC_FTRACE if (HAVE_FTRACE)
  18. help
  19. The ARM series is a line of low-power-consumption RISC chip designs
  20. licensed by ARM Ltd and targeted at embedded applications and
  21. handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
  22. manufactured, but legacy ARM-based PC hardware remains popular in
  23. Europe. There is an ARM Linux project with a web page at
  24. <http://www.arm.linux.org.uk/>.
  25. config HAVE_PWM
  26. bool
  27. config SYS_SUPPORTS_APM_EMULATION
  28. bool
  29. config GENERIC_GPIO
  30. bool
  31. default n
  32. config GENERIC_TIME
  33. bool
  34. default n
  35. config GENERIC_CLOCKEVENTS
  36. bool
  37. default n
  38. config GENERIC_CLOCKEVENTS_BROADCAST
  39. bool
  40. depends on GENERIC_CLOCKEVENTS
  41. default y if SMP && !LOCAL_TIMERS
  42. config MMU
  43. bool
  44. default y
  45. config NO_IOPORT
  46. bool
  47. default n
  48. config EISA
  49. bool
  50. ---help---
  51. The Extended Industry Standard Architecture (EISA) bus was
  52. developed as an open alternative to the IBM MicroChannel bus.
  53. The EISA bus provided some of the features of the IBM MicroChannel
  54. bus while maintaining backward compatibility with cards made for
  55. the older ISA bus. The EISA bus saw limited use between 1988 and
  56. 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.
  58. Otherwise, say N.
  59. config SBUS
  60. bool
  61. config MCA
  62. bool
  63. help
  64. MicroChannel Architecture is found in some IBM PS/2 machines and
  65. laptops. It is a bus system similar to PCI or ISA. See
  66. <file:Documentation/mca.txt> (and especially the web page given
  67. there) before attempting to build an MCA bus kernel.
  68. config GENERIC_HARDIRQS
  69. bool
  70. default y
  71. config STACKTRACE_SUPPORT
  72. bool
  73. default y
  74. config HAVE_LATENCYTOP_SUPPORT
  75. bool
  76. depends on !SMP
  77. default y
  78. config LOCKDEP_SUPPORT
  79. bool
  80. default y
  81. config TRACE_IRQFLAGS_SUPPORT
  82. bool
  83. default y
  84. config HARDIRQS_SW_RESEND
  85. bool
  86. default y
  87. config GENERIC_IRQ_PROBE
  88. bool
  89. default y
  90. config GENERIC_LOCKBREAK
  91. bool
  92. default y
  93. depends on SMP && PREEMPT
  94. config RWSEM_GENERIC_SPINLOCK
  95. bool
  96. default y
  97. config RWSEM_XCHGADD_ALGORITHM
  98. bool
  99. config ARCH_HAS_ILOG2_U32
  100. bool
  101. default n
  102. config ARCH_HAS_ILOG2_U64
  103. bool
  104. default n
  105. config GENERIC_HWEIGHT
  106. bool
  107. default y
  108. config GENERIC_CALIBRATE_DELAY
  109. bool
  110. default y
  111. config ARCH_SUPPORTS_AOUT
  112. def_bool y
  113. config ARCH_MAY_HAVE_PC_FDC
  114. bool
  115. config ZONE_DMA
  116. bool
  117. default y
  118. config GENERIC_ISA_DMA
  119. bool
  120. config FIQ
  121. bool
  122. config ARCH_MTD_XIP
  123. bool
  124. config GENERIC_HARDIRQS_NO__DO_IRQ
  125. bool
  126. def_bool y
  127. if OPROFILE
  128. config OPROFILE_ARMV6
  129. def_bool y
  130. depends on CPU_V6 && !SMP
  131. select OPROFILE_ARM11_CORE
  132. config OPROFILE_MPCORE
  133. def_bool y
  134. depends on CPU_V6 && SMP
  135. select OPROFILE_ARM11_CORE
  136. config OPROFILE_ARM11_CORE
  137. bool
  138. endif
  139. config VECTORS_BASE
  140. hex
  141. default 0xffff0000 if MMU || CPU_HIGH_VECTOR
  142. default DRAM_BASE if REMAP_VECTORS_TO_RAM
  143. default 0x00000000
  144. help
  145. The base address of exception vectors.
  146. source "init/Kconfig"
  147. menu "System Type"
  148. choice
  149. prompt "ARM system type"
  150. default ARCH_VERSATILE
  151. config ARCH_AAEC2000
  152. bool "Agilent AAEC-2000 based"
  153. select ARM_AMBA
  154. help
  155. This enables support for systems based on the Agilent AAEC-2000
  156. config ARCH_INTEGRATOR
  157. bool "ARM Ltd. Integrator family"
  158. select ARM_AMBA
  159. select ICST525
  160. help
  161. Support for ARM's Integrator platform.
  162. config ARCH_REALVIEW
  163. bool "ARM Ltd. RealView family"
  164. select ARM_AMBA
  165. select ICST307
  166. select GENERIC_TIME
  167. select GENERIC_CLOCKEVENTS
  168. help
  169. This enables support for ARM Ltd RealView boards.
  170. config ARCH_VERSATILE
  171. bool "ARM Ltd. Versatile family"
  172. select ARM_AMBA
  173. select ARM_VIC
  174. select ICST307
  175. select GENERIC_TIME
  176. select GENERIC_CLOCKEVENTS
  177. help
  178. This enables support for ARM Ltd Versatile board.
  179. config ARCH_AT91
  180. bool "Atmel AT91"
  181. select GENERIC_GPIO
  182. help
  183. This enables support for systems based on the Atmel AT91RM9200,
  184. AT91SAM9 and AT91CAP9 processors.
  185. config ARCH_CLPS7500
  186. bool "Cirrus CL-PS7500FE"
  187. select TIMER_ACORN
  188. select ISA
  189. select NO_IOPORT
  190. help
  191. Support for the Cirrus Logic PS7500FE system-on-a-chip.
  192. config ARCH_CLPS711X
  193. bool "Cirrus Logic CLPS711x/EP721x-based"
  194. help
  195. Support for Cirrus Logic 711x/721x based boards.
  196. config ARCH_EBSA110
  197. bool "EBSA-110"
  198. select ISA
  199. select NO_IOPORT
  200. help
  201. This is an evaluation board for the StrongARM processor available
  202. from Digital. It has limited hardware on-board, including an
  203. Ethernet interface, two PCMCIA sockets, two serial ports and a
  204. parallel port.
  205. config ARCH_EP93XX
  206. bool "EP93xx-based"
  207. select ARM_AMBA
  208. select ARM_VIC
  209. select GENERIC_GPIO
  210. select HAVE_GPIO_LIB
  211. help
  212. This enables support for the Cirrus EP93xx series of CPUs.
  213. config ARCH_FOOTBRIDGE
  214. bool "FootBridge"
  215. select FOOTBRIDGE
  216. help
  217. Support for systems based on the DC21285 companion chip
  218. ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
  219. config ARCH_NETX
  220. bool "Hilscher NetX based"
  221. select ARM_VIC
  222. help
  223. This enables support for systems based on the Hilscher NetX Soc
  224. config ARCH_H720X
  225. bool "Hynix HMS720x-based"
  226. select ISA_DMA_API
  227. help
  228. This enables support for systems based on the Hynix HMS720x
  229. config ARCH_IMX
  230. bool "IMX"
  231. select GENERIC_GPIO
  232. select GENERIC_TIME
  233. select GENERIC_CLOCKEVENTS
  234. help
  235. Support for Motorola's i.MX family of processors (MX1, MXL).
  236. config ARCH_IOP13XX
  237. bool "IOP13xx-based"
  238. depends on MMU
  239. select PLAT_IOP
  240. select PCI
  241. select ARCH_SUPPORTS_MSI
  242. help
  243. Support for Intel's IOP13XX (XScale) family of processors.
  244. config ARCH_IOP32X
  245. bool "IOP32x-based"
  246. depends on MMU
  247. select PLAT_IOP
  248. select PCI
  249. select GENERIC_GPIO
  250. select HAVE_GPIO_LIB
  251. help
  252. Support for Intel's 80219 and IOP32X (XScale) family of
  253. processors.
  254. config ARCH_IOP33X
  255. bool "IOP33x-based"
  256. depends on MMU
  257. select PLAT_IOP
  258. select PCI
  259. select GENERIC_GPIO
  260. select HAVE_GPIO_LIB
  261. help
  262. Support for Intel's IOP33X (XScale) family of processors.
  263. config ARCH_IXP23XX
  264. bool "IXP23XX-based"
  265. depends on MMU
  266. select PCI
  267. help
  268. Support for Intel's IXP23xx (XScale) family of processors.
  269. config ARCH_IXP2000
  270. bool "IXP2400/2800-based"
  271. depends on MMU
  272. select PCI
  273. help
  274. Support for Intel's IXP2400/2800 (XScale) family of processors.
  275. config ARCH_IXP4XX
  276. bool "IXP4xx-based"
  277. depends on MMU
  278. select GENERIC_GPIO
  279. select GENERIC_TIME
  280. select GENERIC_CLOCKEVENTS
  281. help
  282. Support for Intel's IXP4XX (XScale) family of processors.
  283. config ARCH_L7200
  284. bool "LinkUp-L7200"
  285. select FIQ
  286. help
  287. Say Y here if you intend to run this kernel on a LinkUp Systems
  288. L7200 Software Development Board which uses an ARM720T processor.
  289. Information on this board can be obtained at:
  290. <http://www.linkupsys.com/>
  291. If you have any questions or comments about the Linux kernel port
  292. to this board, send e-mail to <sjhill@cotw.com>.
  293. config ARCH_KIRKWOOD
  294. bool "Marvell Kirkwood"
  295. select PCI
  296. select GENERIC_TIME
  297. select GENERIC_CLOCKEVENTS
  298. select PLAT_ORION
  299. help
  300. Support for the following Marvell Kirkwood series SoCs:
  301. 88F6180, 88F6192 and 88F6281.
  302. config ARCH_KS8695
  303. bool "Micrel/Kendin KS8695"
  304. select GENERIC_GPIO
  305. help
  306. Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
  307. System-on-Chip devices.
  308. config ARCH_NS9XXX
  309. bool "NetSilicon NS9xxx"
  310. select GENERIC_GPIO
  311. select GENERIC_TIME
  312. select GENERIC_CLOCKEVENTS
  313. help
  314. Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
  315. System.
  316. <http://www.digi.com/products/microprocessors/index.jsp>
  317. config ARCH_LOKI
  318. bool "Marvell Loki (88RC8480)"
  319. select GENERIC_TIME
  320. select GENERIC_CLOCKEVENTS
  321. select PLAT_ORION
  322. help
  323. Support for the Marvell Loki (88RC8480) SoC.
  324. config ARCH_MV78XX0
  325. bool "Marvell MV78xx0"
  326. select PCI
  327. select GENERIC_TIME
  328. select GENERIC_CLOCKEVENTS
  329. select PLAT_ORION
  330. help
  331. Support for the following Marvell MV78xx0 series SoCs:
  332. MV781x0, MV782x0.
  333. config ARCH_MXC
  334. bool "Freescale MXC/iMX-based"
  335. select GENERIC_TIME
  336. select GENERIC_CLOCKEVENTS
  337. select ARCH_MTD_XIP
  338. select GENERIC_GPIO
  339. select HAVE_GPIO_LIB
  340. help
  341. Support for Freescale MXC/iMX-based family of processors
  342. config ARCH_ORION5X
  343. bool "Marvell Orion"
  344. depends on MMU
  345. select PCI
  346. select GENERIC_GPIO
  347. select GENERIC_TIME
  348. select GENERIC_CLOCKEVENTS
  349. select PLAT_ORION
  350. help
  351. Support for the following Marvell Orion 5x series SoCs:
  352. Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
  353. Orion-2 (5281).
  354. config ARCH_PNX4008
  355. bool "Philips Nexperia PNX4008 Mobile"
  356. help
  357. This enables support for Philips PNX4008 mobile platform.
  358. config ARCH_PXA
  359. bool "PXA2xx/PXA3xx-based"
  360. depends on MMU
  361. select ARCH_MTD_XIP
  362. select GENERIC_GPIO
  363. select HAVE_GPIO_LIB
  364. select GENERIC_TIME
  365. select GENERIC_CLOCKEVENTS
  366. select TICK_ONESHOT
  367. help
  368. Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
  369. config ARCH_RPC
  370. bool "RiscPC"
  371. select ARCH_ACORN
  372. select FIQ
  373. select TIMER_ACORN
  374. select ARCH_MAY_HAVE_PC_FDC
  375. select HAVE_PATA_PLATFORM
  376. select ISA_DMA_API
  377. select NO_IOPORT
  378. help
  379. On the Acorn Risc-PC, Linux can support the internal IDE disk and
  380. CD-ROM interface, serial and parallel port, and the floppy drive.
  381. config ARCH_SA1100
  382. bool "SA1100-based"
  383. select ISA
  384. select ARCH_DISCONTIGMEM_ENABLE
  385. select ARCH_SPARSEMEM_ENABLE
  386. select ARCH_SELECT_MEMORY_MODEL
  387. select ARCH_MTD_XIP
  388. select GENERIC_GPIO
  389. select GENERIC_TIME
  390. select GENERIC_CLOCKEVENTS
  391. select TICK_ONESHOT
  392. select HAVE_GPIO_LIB
  393. help
  394. Support for StrongARM 11x0 based boards.
  395. config ARCH_S3C2410
  396. bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
  397. select GENERIC_GPIO
  398. help
  399. Samsung S3C2410X CPU based systems, such as the Simtec Electronics
  400. BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
  401. the Samsung SMDK2410 development board (and derivatives).
  402. config ARCH_SHARK
  403. bool "Shark"
  404. select ISA
  405. select ISA_DMA
  406. select PCI
  407. help
  408. Support for the StrongARM based Digital DNARD machine, also known
  409. as "Shark" (<http://www.shark-linux.de/shark.html>).
  410. config ARCH_LH7A40X
  411. bool "Sharp LH7A40X"
  412. help
  413. Say Y here for systems based on one of the Sharp LH7A40X
  414. System on a Chip processors. These CPUs include an ARM922T
  415. core with a wide array of integrated devices for
  416. hand-held and low-power applications.
  417. config ARCH_DAVINCI
  418. bool "TI DaVinci"
  419. select GENERIC_TIME
  420. select GENERIC_CLOCKEVENTS
  421. select GENERIC_GPIO
  422. help
  423. Support for TI's DaVinci platform.
  424. config ARCH_OMAP
  425. bool "TI OMAP"
  426. select GENERIC_GPIO
  427. select HAVE_GPIO_LIB
  428. select GENERIC_TIME
  429. select GENERIC_CLOCKEVENTS
  430. help
  431. Support for TI's OMAP platform (OMAP1 and OMAP2).
  432. config ARCH_MSM7X00A
  433. bool "Qualcomm MSM7X00A"
  434. select GENERIC_TIME
  435. select GENERIC_CLOCKEVENTS
  436. help
  437. Support for Qualcomm MSM7X00A based systems. This runs on the ARM11
  438. apps processor of the MSM7X00A and depends on a shared memory
  439. interface to the ARM9 modem processor which runs the baseband stack
  440. and controls some vital subsystems (clock and power control, etc).
  441. <http://www.cdmatech.com/products/msm7200_chipset_solution.jsp>
  442. endchoice
  443. source "arch/arm/mach-clps711x/Kconfig"
  444. source "arch/arm/mach-ep93xx/Kconfig"
  445. source "arch/arm/mach-footbridge/Kconfig"
  446. source "arch/arm/mach-integrator/Kconfig"
  447. source "arch/arm/mach-iop32x/Kconfig"
  448. source "arch/arm/mach-iop33x/Kconfig"
  449. source "arch/arm/mach-iop13xx/Kconfig"
  450. source "arch/arm/mach-ixp4xx/Kconfig"
  451. source "arch/arm/mach-ixp2000/Kconfig"
  452. source "arch/arm/mach-ixp23xx/Kconfig"
  453. source "arch/arm/mach-loki/Kconfig"
  454. source "arch/arm/mach-mv78xx0/Kconfig"
  455. source "arch/arm/mach-pxa/Kconfig"
  456. source "arch/arm/mach-sa1100/Kconfig"
  457. source "arch/arm/plat-omap/Kconfig"
  458. source "arch/arm/mach-omap1/Kconfig"
  459. source "arch/arm/mach-omap2/Kconfig"
  460. source "arch/arm/mach-orion5x/Kconfig"
  461. source "arch/arm/mach-kirkwood/Kconfig"
  462. source "arch/arm/plat-s3c24xx/Kconfig"
  463. source "arch/arm/plat-s3c/Kconfig"
  464. if ARCH_S3C2410
  465. source "arch/arm/mach-s3c2400/Kconfig"
  466. source "arch/arm/mach-s3c2410/Kconfig"
  467. source "arch/arm/mach-s3c2412/Kconfig"
  468. source "arch/arm/mach-s3c2440/Kconfig"
  469. source "arch/arm/mach-s3c2442/Kconfig"
  470. source "arch/arm/mach-s3c2443/Kconfig"
  471. endif
  472. source "arch/arm/mach-lh7a40x/Kconfig"
  473. source "arch/arm/mach-imx/Kconfig"
  474. source "arch/arm/mach-h720x/Kconfig"
  475. source "arch/arm/mach-versatile/Kconfig"
  476. source "arch/arm/mach-aaec2000/Kconfig"
  477. source "arch/arm/mach-realview/Kconfig"
  478. source "arch/arm/mach-at91/Kconfig"
  479. source "arch/arm/plat-mxc/Kconfig"
  480. source "arch/arm/mach-netx/Kconfig"
  481. source "arch/arm/mach-ns9xxx/Kconfig"
  482. source "arch/arm/mach-davinci/Kconfig"
  483. source "arch/arm/mach-ks8695/Kconfig"
  484. source "arch/arm/mach-msm/Kconfig"
  485. # Definitions to make life easier
  486. config ARCH_ACORN
  487. bool
  488. config PLAT_IOP
  489. bool
  490. config PLAT_ORION
  491. bool
  492. source arch/arm/mm/Kconfig
  493. config IWMMXT
  494. bool "Enable iWMMXt support"
  495. depends on CPU_XSCALE || CPU_XSC3
  496. default y if PXA27x || PXA3xx
  497. help
  498. Enable support for iWMMXt context switching at run time if
  499. running on a CPU that supports it.
  500. # bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
  501. config XSCALE_PMU
  502. bool
  503. depends on CPU_XSCALE && !XSCALE_PMU_TIMER
  504. default y
  505. if !MMU
  506. source "arch/arm/Kconfig-nommu"
  507. endif
  508. endmenu
  509. source "arch/arm/common/Kconfig"
  510. config FORCE_MAX_ZONEORDER
  511. int
  512. depends on SA1111
  513. default "9"
  514. menu "Bus support"
  515. config ARM_AMBA
  516. bool
  517. config ISA
  518. bool
  519. help
  520. Find out whether you have ISA slots on your motherboard. ISA is the
  521. name of a bus system, i.e. the way the CPU talks to the other stuff
  522. inside your box. Other bus systems are PCI, EISA, MicroChannel
  523. (MCA) or VESA. ISA is an older system, now being displaced by PCI;
  524. newer boards don't support it. If you have ISA, say Y, otherwise N.
  525. # Select ISA DMA controller support
  526. config ISA_DMA
  527. bool
  528. select ISA_DMA_API
  529. # Select ISA DMA interface
  530. config ISA_DMA_API
  531. bool
  532. config PCI
  533. bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
  534. help
  535. Find out whether you have a PCI motherboard. PCI is the name of a
  536. bus system, i.e. the way the CPU talks to the other stuff inside
  537. your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
  538. VESA. If you have PCI, say Y, otherwise N.
  539. config PCI_SYSCALL
  540. def_bool PCI
  541. # Select the host bridge type
  542. config PCI_HOST_VIA82C505
  543. bool
  544. depends on PCI && ARCH_SHARK
  545. default y
  546. config PCI_HOST_ITE8152
  547. bool
  548. depends on PCI && MACH_ARMCORE
  549. default y
  550. select DMABOUNCE
  551. source "drivers/pci/Kconfig"
  552. source "drivers/pcmcia/Kconfig"
  553. endmenu
  554. menu "Kernel Features"
  555. source "kernel/time/Kconfig"
  556. config SMP
  557. bool "Symmetric Multi-Processing (EXPERIMENTAL)"
  558. depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP)
  559. select USE_GENERIC_SMP_HELPERS
  560. help
  561. This enables support for systems with more than one CPU. If you have
  562. a system with only one CPU, like most personal computers, say N. If
  563. you have a system with more than one CPU, say Y.
  564. If you say N here, the kernel will run on single and multiprocessor
  565. machines, but will use only one CPU of a multiprocessor machine. If
  566. you say Y here, the kernel will run on many, but not all, single
  567. processor machines. On a single processor machine, the kernel will
  568. run faster if you say N here.
  569. See also <file:Documentation/i386/IO-APIC.txt>,
  570. <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
  571. <http://www.linuxdoc.org/docs.html#howto>.
  572. If you don't know what to do here, say N.
  573. config NR_CPUS
  574. int "Maximum number of CPUs (2-32)"
  575. range 2 32
  576. depends on SMP
  577. default "4"
  578. config HOTPLUG_CPU
  579. bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
  580. depends on SMP && HOTPLUG && EXPERIMENTAL
  581. help
  582. Say Y here to experiment with turning CPUs off and on. CPUs
  583. can be controlled through /sys/devices/system/cpu.
  584. config LOCAL_TIMERS
  585. bool "Use local timer interrupts"
  586. depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP)
  587. default y
  588. help
  589. Enable support for local timers on SMP platforms, rather then the
  590. legacy IPI broadcast method. Local timers allows the system
  591. accounting to be spread across the timer interval, preventing a
  592. "thundering herd" at every timer tick.
  593. config PREEMPT
  594. bool "Preemptible Kernel (EXPERIMENTAL)"
  595. depends on EXPERIMENTAL
  596. help
  597. This option reduces the latency of the kernel when reacting to
  598. real-time or interactive events by allowing a low priority process to
  599. be preempted even if it is in kernel mode executing a system call.
  600. This allows applications to run more reliably even when the system is
  601. under load.
  602. Say Y here if you are building a kernel for a desktop, embedded
  603. or real-time system. Say N if you are unsure.
  604. config HZ
  605. int
  606. default 128 if ARCH_L7200
  607. default 200 if ARCH_EBSA110 || ARCH_S3C2410
  608. default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
  609. default AT91_TIMER_HZ if ARCH_AT91
  610. default 100
  611. config AEABI
  612. bool "Use the ARM EABI to compile the kernel"
  613. help
  614. This option allows for the kernel to be compiled using the latest
  615. ARM ABI (aka EABI). This is only useful if you are using a user
  616. space environment that is also compiled with EABI.
  617. Since there are major incompatibilities between the legacy ABI and
  618. EABI, especially with regard to structure member alignment, this
  619. option also changes the kernel syscall calling convention to
  620. disambiguate both ABIs and allow for backward compatibility support
  621. (selected with CONFIG_OABI_COMPAT).
  622. To use this you need GCC version 4.0.0 or later.
  623. config OABI_COMPAT
  624. bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
  625. depends on AEABI && EXPERIMENTAL
  626. default y
  627. help
  628. This option preserves the old syscall interface along with the
  629. new (ARM EABI) one. It also provides a compatibility layer to
  630. intercept syscalls that have structure arguments which layout
  631. in memory differs between the legacy ABI and the new ARM EABI
  632. (only for non "thumb" binaries). This option adds a tiny
  633. overhead to all syscalls and produces a slightly larger kernel.
  634. If you know you'll be using only pure EABI user space then you
  635. can say N here. If this option is not selected and you attempt
  636. to execute a legacy ABI binary then the result will be
  637. UNPREDICTABLE (in fact it can be predicted that it won't work
  638. at all). If in doubt say Y.
  639. config ARCH_DISCONTIGMEM_ENABLE
  640. bool
  641. default (ARCH_LH7A40X && !LH7A40X_CONTIGMEM)
  642. help
  643. Say Y to support efficient handling of discontiguous physical memory,
  644. for architectures which are either NUMA (Non-Uniform Memory Access)
  645. or have huge holes in the physical address space for other reasons.
  646. See <file:Documentation/vm/numa> for more.
  647. config ARCH_SPARSEMEM_ENABLE
  648. bool
  649. config ARCH_SELECT_MEMORY_MODEL
  650. bool
  651. config NODES_SHIFT
  652. int
  653. default "4" if ARCH_LH7A40X
  654. default "2"
  655. depends on NEED_MULTIPLE_NODES
  656. source "mm/Kconfig"
  657. config LEDS
  658. bool "Timer and CPU usage LEDs"
  659. depends on ARCH_CDB89712 || ARCH_EBSA110 || \
  660. ARCH_EBSA285 || ARCH_IMX || ARCH_INTEGRATOR || \
  661. ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
  662. ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
  663. ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
  664. ARCH_AT91 || MACH_TRIZEPS4 || ARCH_DAVINCI || \
  665. ARCH_KS8695 || MACH_RD88F5182
  666. help
  667. If you say Y here, the LEDs on your machine will be used
  668. to provide useful information about your current system status.
  669. If you are compiling a kernel for a NetWinder or EBSA-285, you will
  670. be able to select which LEDs are active using the options below. If
  671. you are compiling a kernel for the EBSA-110 or the LART however, the
  672. red LED will simply flash regularly to indicate that the system is
  673. still functional. It is safe to say Y here if you have a CATS
  674. system, but the driver will do nothing.
  675. config LEDS_TIMER
  676. bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
  677. OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
  678. || MACH_OMAP_PERSEUS2
  679. depends on LEDS
  680. depends on !GENERIC_CLOCKEVENTS
  681. default y if ARCH_EBSA110
  682. help
  683. If you say Y here, one of the system LEDs (the green one on the
  684. NetWinder, the amber one on the EBSA285, or the red one on the LART)
  685. will flash regularly to indicate that the system is still
  686. operational. This is mainly useful to kernel hackers who are
  687. debugging unstable kernels.
  688. The LART uses the same LED for both Timer LED and CPU usage LED
  689. functions. You may choose to use both, but the Timer LED function
  690. will overrule the CPU usage LED.
  691. config LEDS_CPU
  692. bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
  693. !ARCH_OMAP) \
  694. || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
  695. || MACH_OMAP_PERSEUS2
  696. depends on LEDS
  697. help
  698. If you say Y here, the red LED will be used to give a good real
  699. time indication of CPU usage, by lighting whenever the idle task
  700. is not currently executing.
  701. The LART uses the same LED for both Timer LED and CPU usage LED
  702. functions. You may choose to use both, but the Timer LED function
  703. will overrule the CPU usage LED.
  704. config ALIGNMENT_TRAP
  705. bool
  706. depends on CPU_CP15_MMU
  707. default y if !ARCH_EBSA110
  708. help
  709. ARM processors cannot fetch/store information which is not
  710. naturally aligned on the bus, i.e., a 4 byte fetch must start at an
  711. address divisible by 4. On 32-bit ARM processors, these non-aligned
  712. fetch/store instructions will be emulated in software if you say
  713. here, which has a severe performance impact. This is necessary for
  714. correct operation of some network protocols. With an IP-only
  715. configuration it is safe to say N, otherwise say Y.
  716. endmenu
  717. menu "Boot options"
  718. # Compressed boot loader in ROM. Yes, we really want to ask about
  719. # TEXT and BSS so we preserve their values in the config files.
  720. config ZBOOT_ROM_TEXT
  721. hex "Compressed ROM boot loader base address"
  722. default "0"
  723. help
  724. The physical address at which the ROM-able zImage is to be
  725. placed in the target. Platforms which normally make use of
  726. ROM-able zImage formats normally set this to a suitable
  727. value in their defconfig file.
  728. If ZBOOT_ROM is not enabled, this has no effect.
  729. config ZBOOT_ROM_BSS
  730. hex "Compressed ROM boot loader BSS address"
  731. default "0"
  732. help
  733. The base address of an area of read/write memory in the target
  734. for the ROM-able zImage which must be available while the
  735. decompressor is running. It must be large enough to hold the
  736. entire decompressed kernel plus an additional 128 KiB.
  737. Platforms which normally make use of ROM-able zImage formats
  738. normally set this to a suitable value in their defconfig file.
  739. If ZBOOT_ROM is not enabled, this has no effect.
  740. config ZBOOT_ROM
  741. bool "Compressed boot loader in ROM/flash"
  742. depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
  743. help
  744. Say Y here if you intend to execute your compressed kernel image
  745. (zImage) directly from ROM or flash. If unsure, say N.
  746. config CMDLINE
  747. string "Default kernel command string"
  748. default ""
  749. help
  750. On some architectures (EBSA110 and CATS), there is currently no way
  751. for the boot loader to pass arguments to the kernel. For these
  752. architectures, you should supply some command-line options at build
  753. time by entering them here. As a minimum, you should specify the
  754. memory size and the root device (e.g., mem=64M root=/dev/nfs).
  755. config XIP_KERNEL
  756. bool "Kernel Execute-In-Place from ROM"
  757. depends on !ZBOOT_ROM
  758. help
  759. Execute-In-Place allows the kernel to run from non-volatile storage
  760. directly addressable by the CPU, such as NOR flash. This saves RAM
  761. space since the text section of the kernel is not loaded from flash
  762. to RAM. Read-write sections, such as the data section and stack,
  763. are still copied to RAM. The XIP kernel is not compressed since
  764. it has to run directly from flash, so it will take more space to
  765. store it. The flash address used to link the kernel object files,
  766. and for storing it, is configuration dependent. Therefore, if you
  767. say Y here, you must know the proper physical address where to
  768. store the kernel image depending on your own flash memory usage.
  769. Also note that the make target becomes "make xipImage" rather than
  770. "make zImage" or "make Image". The final kernel binary to put in
  771. ROM memory will be arch/arm/boot/xipImage.
  772. If unsure, say N.
  773. config XIP_PHYS_ADDR
  774. hex "XIP Kernel Physical Location"
  775. depends on XIP_KERNEL
  776. default "0x00080000"
  777. help
  778. This is the physical address in your flash memory the kernel will
  779. be linked for and stored to. This address is dependent on your
  780. own flash usage.
  781. config KEXEC
  782. bool "Kexec system call (EXPERIMENTAL)"
  783. depends on EXPERIMENTAL
  784. help
  785. kexec is a system call that implements the ability to shutdown your
  786. current kernel, and to start another kernel. It is like a reboot
  787. but it is independent of the system firmware. And like a reboot
  788. you can start any kernel with it, not just Linux.
  789. It is an ongoing process to be certain the hardware in a machine
  790. is properly shutdown, so do not be surprised if this code does not
  791. initially work for you. It may help to enable device hotplugging
  792. support.
  793. config ATAGS_PROC
  794. bool "Export atags in procfs"
  795. depends on KEXEC
  796. default y
  797. help
  798. Should the atags used to boot the kernel be exported in an "atags"
  799. file in procfs. Useful with kexec.
  800. endmenu
  801. if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX || ARCH_PXA)
  802. menu "CPU Frequency scaling"
  803. source "drivers/cpufreq/Kconfig"
  804. config CPU_FREQ_SA1100
  805. bool
  806. depends on CPU_FREQ && (SA1100_H3100 || SA1100_H3600 || SA1100_H3800 || SA1100_LART || SA1100_PLEB || SA1100_BADGE4 || SA1100_HACKKIT)
  807. default y
  808. config CPU_FREQ_SA1110
  809. bool
  810. depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
  811. default y
  812. config CPU_FREQ_INTEGRATOR
  813. tristate "CPUfreq driver for ARM Integrator CPUs"
  814. depends on ARCH_INTEGRATOR && CPU_FREQ
  815. default y
  816. help
  817. This enables the CPUfreq driver for ARM Integrator CPUs.
  818. For details, take a look at <file:Documentation/cpu-freq>.
  819. If in doubt, say Y.
  820. config CPU_FREQ_IMX
  821. tristate "CPUfreq driver for i.MX CPUs"
  822. depends on ARCH_IMX && CPU_FREQ
  823. default n
  824. help
  825. This enables the CPUfreq driver for i.MX CPUs.
  826. If in doubt, say N.
  827. config CPU_FREQ_PXA
  828. bool
  829. depends on CPU_FREQ && ARCH_PXA && PXA25x
  830. default y
  831. select CPU_FREQ_DEFAULT_GOV_USERSPACE
  832. endmenu
  833. endif
  834. menu "Floating point emulation"
  835. comment "At least one emulation must be selected"
  836. config FPE_NWFPE
  837. bool "NWFPE math emulation"
  838. depends on !AEABI || OABI_COMPAT
  839. ---help---
  840. Say Y to include the NWFPE floating point emulator in the kernel.
  841. This is necessary to run most binaries. Linux does not currently
  842. support floating point hardware so you need to say Y here even if
  843. your machine has an FPA or floating point co-processor podule.
  844. You may say N here if you are going to load the Acorn FPEmulator
  845. early in the bootup.
  846. config FPE_NWFPE_XP
  847. bool "Support extended precision"
  848. depends on FPE_NWFPE
  849. help
  850. Say Y to include 80-bit support in the kernel floating-point
  851. emulator. Otherwise, only 32 and 64-bit support is compiled in.
  852. Note that gcc does not generate 80-bit operations by default,
  853. so in most cases this option only enlarges the size of the
  854. floating point emulator without any good reason.
  855. You almost surely want to say N here.
  856. config FPE_FASTFPE
  857. bool "FastFPE math emulation (EXPERIMENTAL)"
  858. depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
  859. ---help---
  860. Say Y here to include the FAST floating point emulator in the kernel.
  861. This is an experimental much faster emulator which now also has full
  862. precision for the mantissa. It does not support any exceptions.
  863. It is very simple, and approximately 3-6 times faster than NWFPE.
  864. It should be sufficient for most programs. It may be not suitable
  865. for scientific calculations, but you have to check this for yourself.
  866. If you do not feel you need a faster FP emulation you should better
  867. choose NWFPE.
  868. config VFP
  869. bool "VFP-format floating point maths"
  870. depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
  871. help
  872. Say Y to include VFP support code in the kernel. This is needed
  873. if your hardware includes a VFP unit.
  874. Please see <file:Documentation/arm/VFP/release-notes.txt> for
  875. release notes and additional status information.
  876. Say N if your target does not have VFP hardware.
  877. config VFPv3
  878. bool
  879. depends on VFP
  880. default y if CPU_V7
  881. config NEON
  882. bool "Advanced SIMD (NEON) Extension support"
  883. depends on VFPv3 && CPU_V7
  884. help
  885. Say Y to include support code for NEON, the ARMv7 Advanced SIMD
  886. Extension.
  887. endmenu
  888. menu "Userspace binary formats"
  889. source "fs/Kconfig.binfmt"
  890. config ARTHUR
  891. tristate "RISC OS personality"
  892. depends on !AEABI
  893. help
  894. Say Y here to include the kernel code necessary if you want to run
  895. Acorn RISC OS/Arthur binaries under Linux. This code is still very
  896. experimental; if this sounds frightening, say N and sleep in peace.
  897. You can also say M here to compile this support as a module (which
  898. will be called arthur).
  899. endmenu
  900. menu "Power management options"
  901. source "kernel/power/Kconfig"
  902. config ARCH_SUSPEND_POSSIBLE
  903. def_bool y
  904. endmenu
  905. source "net/Kconfig"
  906. menu "Device Drivers"
  907. source "drivers/base/Kconfig"
  908. source "drivers/connector/Kconfig"
  909. if ALIGNMENT_TRAP || !CPU_CP15_MMU
  910. source "drivers/mtd/Kconfig"
  911. endif
  912. source "drivers/parport/Kconfig"
  913. source "drivers/pnp/Kconfig"
  914. source "drivers/block/Kconfig"
  915. # misc before ide - BLK_DEV_SGIIOC4 depends on SGI_IOC4
  916. source "drivers/misc/Kconfig"
  917. source "drivers/ide/Kconfig"
  918. source "drivers/scsi/Kconfig"
  919. source "drivers/ata/Kconfig"
  920. source "drivers/md/Kconfig"
  921. source "drivers/message/fusion/Kconfig"
  922. source "drivers/ieee1394/Kconfig"
  923. source "drivers/message/i2o/Kconfig"
  924. source "drivers/net/Kconfig"
  925. source "drivers/isdn/Kconfig"
  926. # input before char - char/joystick depends on it. As does USB.
  927. source "drivers/input/Kconfig"
  928. source "drivers/char/Kconfig"
  929. source "drivers/i2c/Kconfig"
  930. source "drivers/spi/Kconfig"
  931. source "drivers/gpio/Kconfig"
  932. source "drivers/w1/Kconfig"
  933. source "drivers/power/Kconfig"
  934. source "drivers/hwmon/Kconfig"
  935. source "drivers/watchdog/Kconfig"
  936. source "drivers/ssb/Kconfig"
  937. #source "drivers/l3/Kconfig"
  938. source "drivers/mfd/Kconfig"
  939. source "drivers/media/Kconfig"
  940. source "drivers/video/Kconfig"
  941. source "sound/Kconfig"
  942. source "drivers/hid/Kconfig"
  943. source "drivers/usb/Kconfig"
  944. source "drivers/mmc/Kconfig"
  945. source "drivers/leds/Kconfig"
  946. source "drivers/rtc/Kconfig"
  947. source "drivers/dma/Kconfig"
  948. source "drivers/dca/Kconfig"
  949. source "drivers/uio/Kconfig"
  950. endmenu
  951. source "fs/Kconfig"
  952. source "arch/arm/Kconfig.debug"
  953. source "security/Kconfig"
  954. source "crypto/Kconfig"
  955. source "lib/Kconfig"