Kconfig 33 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. select HAVE_AOUT
  10. select HAVE_IDE
  11. select RTC_LIB
  12. select SYS_SUPPORTS_APM_EMULATION
  13. select HAVE_OPROFILE
  14. select HAVE_ARCH_KGDB
  15. select HAVE_KPROBES if (!XIP_KERNEL)
  16. select HAVE_KRETPROBES if (HAVE_KPROBES)
  17. select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
  18. select HAVE_GENERIC_DMA_COHERENT
  19. help
  20. The ARM series is a line of low-power-consumption RISC chip designs
  21. licensed by ARM Ltd and targeted at embedded applications and
  22. handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
  23. manufactured, but legacy ARM-based PC hardware remains popular in
  24. Europe. There is an ARM Linux project with a web page at
  25. <http://www.arm.linux.org.uk/>.
  26. config HAVE_PWM
  27. bool
  28. config SYS_SUPPORTS_APM_EMULATION
  29. bool
  30. config GENERIC_GPIO
  31. bool
  32. default n
  33. config GENERIC_TIME
  34. bool
  35. default n
  36. config GENERIC_CLOCKEVENTS
  37. bool
  38. default n
  39. config GENERIC_CLOCKEVENTS_BROADCAST
  40. bool
  41. depends on GENERIC_CLOCKEVENTS
  42. default y if SMP && !LOCAL_TIMERS
  43. config MMU
  44. bool
  45. default y
  46. config NO_IOPORT
  47. bool
  48. default n
  49. config EISA
  50. bool
  51. ---help---
  52. The Extended Industry Standard Architecture (EISA) bus was
  53. developed as an open alternative to the IBM MicroChannel bus.
  54. The EISA bus provided some of the features of the IBM MicroChannel
  55. bus while maintaining backward compatibility with cards made for
  56. the older ISA bus. The EISA bus saw limited use between 1988 and
  57. 1995 when it was made obsolete by the PCI bus.
  58. Say Y here if you are building a kernel for an EISA-based machine.
  59. Otherwise, say N.
  60. config SBUS
  61. bool
  62. config MCA
  63. bool
  64. help
  65. MicroChannel Architecture is found in some IBM PS/2 machines and
  66. laptops. It is a bus system similar to PCI or ISA. See
  67. <file:Documentation/mca.txt> (and especially the web page given
  68. there) before attempting to build an MCA bus kernel.
  69. config GENERIC_HARDIRQS
  70. bool
  71. default y
  72. config STACKTRACE_SUPPORT
  73. bool
  74. default y
  75. config HAVE_LATENCYTOP_SUPPORT
  76. bool
  77. depends on !SMP
  78. default y
  79. config LOCKDEP_SUPPORT
  80. bool
  81. default y
  82. config TRACE_IRQFLAGS_SUPPORT
  83. bool
  84. default y
  85. config HARDIRQS_SW_RESEND
  86. bool
  87. default y
  88. config GENERIC_IRQ_PROBE
  89. bool
  90. default y
  91. config GENERIC_LOCKBREAK
  92. bool
  93. default y
  94. depends on SMP && PREEMPT
  95. config RWSEM_GENERIC_SPINLOCK
  96. bool
  97. default y
  98. config RWSEM_XCHGADD_ALGORITHM
  99. bool
  100. config ARCH_HAS_ILOG2_U32
  101. bool
  102. default n
  103. config ARCH_HAS_ILOG2_U64
  104. bool
  105. default n
  106. config GENERIC_HWEIGHT
  107. bool
  108. default y
  109. config GENERIC_CALIBRATE_DELAY
  110. bool
  111. default y
  112. config ARCH_MAY_HAVE_PC_FDC
  113. bool
  114. config ZONE_DMA
  115. bool
  116. config GENERIC_ISA_DMA
  117. bool
  118. config FIQ
  119. bool
  120. config ARCH_MTD_XIP
  121. bool
  122. config GENERIC_HARDIRQS_NO__DO_IRQ
  123. def_bool y
  124. if OPROFILE
  125. config OPROFILE_ARMV6
  126. def_bool y
  127. depends on CPU_V6 && !SMP
  128. select OPROFILE_ARM11_CORE
  129. config OPROFILE_MPCORE
  130. def_bool y
  131. depends on CPU_V6 && SMP
  132. select OPROFILE_ARM11_CORE
  133. config OPROFILE_ARM11_CORE
  134. bool
  135. config OPROFILE_ARMV7
  136. def_bool y
  137. depends on CPU_V7 && !SMP
  138. bool
  139. endif
  140. config VECTORS_BASE
  141. hex
  142. default 0xffff0000 if MMU || CPU_HIGH_VECTOR
  143. default DRAM_BASE if REMAP_VECTORS_TO_RAM
  144. default 0x00000000
  145. help
  146. The base address of exception vectors.
  147. source "init/Kconfig"
  148. source "kernel/Kconfig.freezer"
  149. menu "System Type"
  150. choice
  151. prompt "ARM system type"
  152. default ARCH_VERSATILE
  153. config ARCH_AAEC2000
  154. bool "Agilent AAEC-2000 based"
  155. select CPU_ARM920T
  156. select ARM_AMBA
  157. select HAVE_CLK
  158. help
  159. This enables support for systems based on the Agilent AAEC-2000
  160. config ARCH_INTEGRATOR
  161. bool "ARM Ltd. Integrator family"
  162. select ARM_AMBA
  163. select HAVE_CLK
  164. select COMMON_CLKDEV
  165. select ICST525
  166. help
  167. Support for ARM's Integrator platform.
  168. config ARCH_REALVIEW
  169. bool "ARM Ltd. RealView family"
  170. select ARM_AMBA
  171. select HAVE_CLK
  172. select COMMON_CLKDEV
  173. select ICST307
  174. select GENERIC_TIME
  175. select GENERIC_CLOCKEVENTS
  176. help
  177. This enables support for ARM Ltd RealView boards.
  178. config ARCH_VERSATILE
  179. bool "ARM Ltd. Versatile family"
  180. select ARM_AMBA
  181. select ARM_VIC
  182. select HAVE_CLK
  183. select COMMON_CLKDEV
  184. select ICST307
  185. select GENERIC_TIME
  186. select GENERIC_CLOCKEVENTS
  187. help
  188. This enables support for ARM Ltd Versatile board.
  189. config ARCH_AT91
  190. bool "Atmel AT91"
  191. select GENERIC_GPIO
  192. select HAVE_CLK
  193. help
  194. This enables support for systems based on the Atmel AT91RM9200,
  195. AT91SAM9 and AT91CAP9 processors.
  196. config ARCH_CLPS711X
  197. bool "Cirrus Logic CLPS711x/EP721x-based"
  198. select CPU_ARM720T
  199. help
  200. Support for Cirrus Logic 711x/721x based boards.
  201. config ARCH_EBSA110
  202. bool "EBSA-110"
  203. select CPU_SA110
  204. select ISA
  205. select NO_IOPORT
  206. help
  207. This is an evaluation board for the StrongARM processor available
  208. from Digital. It has limited hardware on-board, including an
  209. Ethernet interface, two PCMCIA sockets, two serial ports and a
  210. parallel port.
  211. config ARCH_EP93XX
  212. bool "EP93xx-based"
  213. select CPU_ARM920T
  214. select ARM_AMBA
  215. select ARM_VIC
  216. select GENERIC_GPIO
  217. select HAVE_CLK
  218. select COMMON_CLKDEV
  219. select ARCH_REQUIRE_GPIOLIB
  220. help
  221. This enables support for the Cirrus EP93xx series of CPUs.
  222. config ARCH_GEMINI
  223. bool "Cortina Systems Gemini"
  224. select CPU_FA526
  225. select GENERIC_GPIO
  226. select ARCH_REQUIRE_GPIOLIB
  227. help
  228. Support for the Cortina Systems Gemini family SoCs
  229. config ARCH_FOOTBRIDGE
  230. bool "FootBridge"
  231. select CPU_SA110
  232. select FOOTBRIDGE
  233. help
  234. Support for systems based on the DC21285 companion chip
  235. ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
  236. config ARCH_NETX
  237. bool "Hilscher NetX based"
  238. select CPU_ARM926T
  239. select ARM_VIC
  240. select GENERIC_CLOCKEVENTS
  241. select GENERIC_TIME
  242. help
  243. This enables support for systems based on the Hilscher NetX Soc
  244. config ARCH_H720X
  245. bool "Hynix HMS720x-based"
  246. select CPU_ARM720T
  247. select ISA_DMA_API
  248. help
  249. This enables support for systems based on the Hynix HMS720x
  250. config ARCH_IMX
  251. bool "IMX"
  252. select CPU_ARM920T
  253. select GENERIC_GPIO
  254. select GENERIC_TIME
  255. select GENERIC_CLOCKEVENTS
  256. help
  257. Support for Motorola's i.MX family of processors (MX1, MXL).
  258. config ARCH_IOP13XX
  259. bool "IOP13xx-based"
  260. depends on MMU
  261. select CPU_XSC3
  262. select PLAT_IOP
  263. select PCI
  264. select ARCH_SUPPORTS_MSI
  265. select VMSPLIT_1G
  266. help
  267. Support for Intel's IOP13XX (XScale) family of processors.
  268. config ARCH_IOP32X
  269. bool "IOP32x-based"
  270. depends on MMU
  271. select CPU_XSCALE
  272. select PLAT_IOP
  273. select PCI
  274. select GENERIC_GPIO
  275. select ARCH_REQUIRE_GPIOLIB
  276. help
  277. Support for Intel's 80219 and IOP32X (XScale) family of
  278. processors.
  279. config ARCH_IOP33X
  280. bool "IOP33x-based"
  281. depends on MMU
  282. select CPU_XSCALE
  283. select PLAT_IOP
  284. select PCI
  285. select GENERIC_GPIO
  286. select ARCH_REQUIRE_GPIOLIB
  287. help
  288. Support for Intel's IOP33X (XScale) family of processors.
  289. config ARCH_IXP23XX
  290. bool "IXP23XX-based"
  291. depends on MMU
  292. select CPU_XSC3
  293. select PCI
  294. help
  295. Support for Intel's IXP23xx (XScale) family of processors.
  296. config ARCH_IXP2000
  297. bool "IXP2400/2800-based"
  298. depends on MMU
  299. select CPU_XSCALE
  300. select PCI
  301. help
  302. Support for Intel's IXP2400/2800 (XScale) family of processors.
  303. config ARCH_IXP4XX
  304. bool "IXP4xx-based"
  305. depends on MMU
  306. select CPU_XSCALE
  307. select GENERIC_GPIO
  308. select GENERIC_TIME
  309. select GENERIC_CLOCKEVENTS
  310. select DMABOUNCE if PCI
  311. help
  312. Support for Intel's IXP4XX (XScale) family of processors.
  313. config ARCH_L7200
  314. bool "LinkUp-L7200"
  315. select CPU_ARM720T
  316. select FIQ
  317. help
  318. Say Y here if you intend to run this kernel on a LinkUp Systems
  319. L7200 Software Development Board which uses an ARM720T processor.
  320. Information on this board can be obtained at:
  321. <http://www.linkupsys.com/>
  322. If you have any questions or comments about the Linux kernel port
  323. to this board, send e-mail to <sjhill@cotw.com>.
  324. config ARCH_KIRKWOOD
  325. bool "Marvell Kirkwood"
  326. select CPU_FEROCEON
  327. select PCI
  328. select GENERIC_GPIO
  329. select GENERIC_TIME
  330. select GENERIC_CLOCKEVENTS
  331. select PLAT_ORION
  332. help
  333. Support for the following Marvell Kirkwood series SoCs:
  334. 88F6180, 88F6192 and 88F6281.
  335. config ARCH_KS8695
  336. bool "Micrel/Kendin KS8695"
  337. select CPU_ARM922T
  338. select GENERIC_GPIO
  339. select ARCH_REQUIRE_GPIOLIB
  340. help
  341. Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
  342. System-on-Chip devices.
  343. config ARCH_NS9XXX
  344. bool "NetSilicon NS9xxx"
  345. select CPU_ARM926T
  346. select GENERIC_GPIO
  347. select GENERIC_TIME
  348. select GENERIC_CLOCKEVENTS
  349. select HAVE_CLK
  350. help
  351. Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
  352. System.
  353. <http://www.digi.com/products/microprocessors/index.jsp>
  354. config ARCH_LOKI
  355. bool "Marvell Loki (88RC8480)"
  356. select CPU_FEROCEON
  357. select GENERIC_TIME
  358. select GENERIC_CLOCKEVENTS
  359. select PLAT_ORION
  360. help
  361. Support for the Marvell Loki (88RC8480) SoC.
  362. config ARCH_MV78XX0
  363. bool "Marvell MV78xx0"
  364. select CPU_FEROCEON
  365. select PCI
  366. select GENERIC_GPIO
  367. select GENERIC_TIME
  368. select GENERIC_CLOCKEVENTS
  369. select PLAT_ORION
  370. help
  371. Support for the following Marvell MV78xx0 series SoCs:
  372. MV781x0, MV782x0.
  373. config ARCH_MXC
  374. bool "Freescale MXC/iMX-based"
  375. select GENERIC_TIME
  376. select GENERIC_CLOCKEVENTS
  377. select ARCH_MTD_XIP
  378. select GENERIC_GPIO
  379. select ARCH_REQUIRE_GPIOLIB
  380. help
  381. Support for Freescale MXC/iMX-based family of processors
  382. config ARCH_ORION5X
  383. bool "Marvell Orion"
  384. depends on MMU
  385. select CPU_FEROCEON
  386. select PCI
  387. select GENERIC_GPIO
  388. select GENERIC_TIME
  389. select GENERIC_CLOCKEVENTS
  390. select PLAT_ORION
  391. help
  392. Support for the following Marvell Orion 5x series SoCs:
  393. Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
  394. Orion-2 (5281), Orion-1-90 (6183).
  395. config ARCH_PNX4008
  396. bool "Philips Nexperia PNX4008 Mobile"
  397. select CPU_ARM926T
  398. select HAVE_CLK
  399. help
  400. This enables support for Philips PNX4008 mobile platform.
  401. config ARCH_PXA
  402. bool "PXA2xx/PXA3xx-based"
  403. depends on MMU
  404. select ARCH_MTD_XIP
  405. select GENERIC_GPIO
  406. select HAVE_CLK
  407. select COMMON_CLKDEV
  408. select ARCH_REQUIRE_GPIOLIB
  409. select GENERIC_TIME
  410. select GENERIC_CLOCKEVENTS
  411. select TICK_ONESHOT
  412. help
  413. Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
  414. config ARCH_RPC
  415. bool "RiscPC"
  416. select ARCH_ACORN
  417. select FIQ
  418. select TIMER_ACORN
  419. select ARCH_MAY_HAVE_PC_FDC
  420. select HAVE_PATA_PLATFORM
  421. select ISA_DMA_API
  422. select NO_IOPORT
  423. select ARCH_SPARSEMEM_ENABLE
  424. help
  425. On the Acorn Risc-PC, Linux can support the internal IDE disk and
  426. CD-ROM interface, serial and parallel port, and the floppy drive.
  427. config ARCH_SA1100
  428. bool "SA1100-based"
  429. select CPU_SA1100
  430. select ISA
  431. select ARCH_SPARSEMEM_ENABLE
  432. select ARCH_MTD_XIP
  433. select GENERIC_GPIO
  434. select GENERIC_TIME
  435. select GENERIC_CLOCKEVENTS
  436. select HAVE_CLK
  437. select TICK_ONESHOT
  438. select ARCH_REQUIRE_GPIOLIB
  439. help
  440. Support for StrongARM 11x0 based boards.
  441. config ARCH_S3C2410
  442. bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
  443. select GENERIC_GPIO
  444. select HAVE_CLK
  445. help
  446. Samsung S3C2410X CPU based systems, such as the Simtec Electronics
  447. BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
  448. the Samsung SMDK2410 development board (and derivatives).
  449. config ARCH_S3C64XX
  450. bool "Samsung S3C64XX"
  451. select GENERIC_GPIO
  452. select HAVE_CLK
  453. help
  454. Samsung S3C64XX series based systems
  455. config ARCH_SHARK
  456. bool "Shark"
  457. select CPU_SA110
  458. select ISA
  459. select ISA_DMA
  460. select ZONE_DMA
  461. select PCI
  462. help
  463. Support for the StrongARM based Digital DNARD machine, also known
  464. as "Shark" (<http://www.shark-linux.de/shark.html>).
  465. config ARCH_LH7A40X
  466. bool "Sharp LH7A40X"
  467. select CPU_ARM922T
  468. select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
  469. select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
  470. help
  471. Say Y here for systems based on one of the Sharp LH7A40X
  472. System on a Chip processors. These CPUs include an ARM922T
  473. core with a wide array of integrated devices for
  474. hand-held and low-power applications.
  475. config ARCH_DAVINCI
  476. bool "TI DaVinci"
  477. select CPU_ARM926T
  478. select GENERIC_TIME
  479. select GENERIC_CLOCKEVENTS
  480. select GENERIC_GPIO
  481. select ARCH_REQUIRE_GPIOLIB
  482. select HAVE_CLK
  483. select ZONE_DMA
  484. help
  485. Support for TI's DaVinci platform.
  486. config ARCH_OMAP
  487. bool "TI OMAP"
  488. select GENERIC_GPIO
  489. select HAVE_CLK
  490. select ARCH_REQUIRE_GPIOLIB
  491. select GENERIC_TIME
  492. select GENERIC_CLOCKEVENTS
  493. help
  494. Support for TI's OMAP platform (OMAP1 and OMAP2).
  495. config ARCH_MSM
  496. bool "Qualcomm MSM"
  497. select CPU_V6
  498. select GENERIC_TIME
  499. select GENERIC_CLOCKEVENTS
  500. help
  501. Support for Qualcomm MSM7K based systems. This runs on the ARM11
  502. apps processor of the MSM7K and depends on a shared memory
  503. interface to the ARM9 modem processor which runs the baseband stack
  504. and controls some vital subsystems (clock and power control, etc).
  505. config ARCH_W90X900
  506. bool "Nuvoton W90X900 CPU"
  507. select CPU_ARM926T
  508. help
  509. Support for Nuvoton (Winbond logic dept.) ARM9 processor,You
  510. can login www.mcuos.com or www.nuvoton.com to know more.
  511. endchoice
  512. source "arch/arm/mach-clps711x/Kconfig"
  513. source "arch/arm/mach-ep93xx/Kconfig"
  514. source "arch/arm/mach-footbridge/Kconfig"
  515. source "arch/arm/mach-gemini/Kconfig"
  516. source "arch/arm/mach-integrator/Kconfig"
  517. source "arch/arm/mach-iop32x/Kconfig"
  518. source "arch/arm/mach-iop33x/Kconfig"
  519. source "arch/arm/mach-iop13xx/Kconfig"
  520. source "arch/arm/mach-ixp4xx/Kconfig"
  521. source "arch/arm/mach-ixp2000/Kconfig"
  522. source "arch/arm/mach-ixp23xx/Kconfig"
  523. source "arch/arm/mach-loki/Kconfig"
  524. source "arch/arm/mach-mv78xx0/Kconfig"
  525. source "arch/arm/mach-pxa/Kconfig"
  526. source "arch/arm/mach-sa1100/Kconfig"
  527. source "arch/arm/plat-omap/Kconfig"
  528. source "arch/arm/mach-omap1/Kconfig"
  529. source "arch/arm/mach-omap2/Kconfig"
  530. source "arch/arm/mach-orion5x/Kconfig"
  531. source "arch/arm/mach-kirkwood/Kconfig"
  532. source "arch/arm/plat-s3c24xx/Kconfig"
  533. source "arch/arm/plat-s3c64xx/Kconfig"
  534. source "arch/arm/plat-s3c/Kconfig"
  535. if ARCH_S3C2410
  536. source "arch/arm/mach-s3c2400/Kconfig"
  537. source "arch/arm/mach-s3c2410/Kconfig"
  538. source "arch/arm/mach-s3c2412/Kconfig"
  539. source "arch/arm/mach-s3c2440/Kconfig"
  540. source "arch/arm/mach-s3c2442/Kconfig"
  541. source "arch/arm/mach-s3c2443/Kconfig"
  542. endif
  543. if ARCH_S3C64XX
  544. source "arch/arm/mach-s3c6400/Kconfig"
  545. source "arch/arm/mach-s3c6410/Kconfig"
  546. endif
  547. source "arch/arm/mach-lh7a40x/Kconfig"
  548. source "arch/arm/mach-imx/Kconfig"
  549. source "arch/arm/mach-h720x/Kconfig"
  550. source "arch/arm/mach-versatile/Kconfig"
  551. source "arch/arm/mach-aaec2000/Kconfig"
  552. source "arch/arm/mach-realview/Kconfig"
  553. source "arch/arm/mach-at91/Kconfig"
  554. source "arch/arm/plat-mxc/Kconfig"
  555. source "arch/arm/mach-netx/Kconfig"
  556. source "arch/arm/mach-ns9xxx/Kconfig"
  557. source "arch/arm/mach-davinci/Kconfig"
  558. source "arch/arm/mach-ks8695/Kconfig"
  559. source "arch/arm/mach-msm/Kconfig"
  560. source "arch/arm/mach-w90x900/Kconfig"
  561. # Definitions to make life easier
  562. config ARCH_ACORN
  563. bool
  564. config PLAT_IOP
  565. bool
  566. config PLAT_ORION
  567. bool
  568. source arch/arm/mm/Kconfig
  569. config IWMMXT
  570. bool "Enable iWMMXt support"
  571. depends on CPU_XSCALE || CPU_XSC3
  572. default y if PXA27x || PXA3xx
  573. help
  574. Enable support for iWMMXt context switching at run time if
  575. running on a CPU that supports it.
  576. # bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
  577. config XSCALE_PMU
  578. bool
  579. depends on CPU_XSCALE && !XSCALE_PMU_TIMER
  580. default y
  581. if !MMU
  582. source "arch/arm/Kconfig-nommu"
  583. endif
  584. endmenu
  585. source "arch/arm/common/Kconfig"
  586. config FORCE_MAX_ZONEORDER
  587. int
  588. depends on SA1111
  589. default "9"
  590. menu "Bus support"
  591. config ARM_AMBA
  592. bool
  593. config ISA
  594. bool
  595. help
  596. Find out whether you have ISA slots on your motherboard. ISA is the
  597. name of a bus system, i.e. the way the CPU talks to the other stuff
  598. inside your box. Other bus systems are PCI, EISA, MicroChannel
  599. (MCA) or VESA. ISA is an older system, now being displaced by PCI;
  600. newer boards don't support it. If you have ISA, say Y, otherwise N.
  601. # Select ISA DMA controller support
  602. config ISA_DMA
  603. bool
  604. select ISA_DMA_API
  605. # Select ISA DMA interface
  606. config ISA_DMA_API
  607. bool
  608. config PCI
  609. bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
  610. help
  611. Find out whether you have a PCI motherboard. PCI is the name of a
  612. bus system, i.e. the way the CPU talks to the other stuff inside
  613. your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
  614. VESA. If you have PCI, say Y, otherwise N.
  615. config PCI_SYSCALL
  616. def_bool PCI
  617. # Select the host bridge type
  618. config PCI_HOST_VIA82C505
  619. bool
  620. depends on PCI && ARCH_SHARK
  621. default y
  622. config PCI_HOST_ITE8152
  623. bool
  624. depends on PCI && MACH_ARMCORE
  625. default y
  626. select DMABOUNCE
  627. source "drivers/pci/Kconfig"
  628. source "drivers/pcmcia/Kconfig"
  629. endmenu
  630. menu "Kernel Features"
  631. source "kernel/time/Kconfig"
  632. config SMP
  633. bool "Symmetric Multi-Processing (EXPERIMENTAL)"
  634. depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP)
  635. select USE_GENERIC_SMP_HELPERS
  636. help
  637. This enables support for systems with more than one CPU. If you have
  638. a system with only one CPU, like most personal computers, say N. If
  639. you have a system with more than one CPU, say Y.
  640. If you say N here, the kernel will run on single and multiprocessor
  641. machines, but will use only one CPU of a multiprocessor machine. If
  642. you say Y here, the kernel will run on many, but not all, single
  643. processor machines. On a single processor machine, the kernel will
  644. run faster if you say N here.
  645. See also <file:Documentation/i386/IO-APIC.txt>,
  646. <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
  647. <http://www.linuxdoc.org/docs.html#howto>.
  648. If you don't know what to do here, say N.
  649. choice
  650. prompt "Memory split"
  651. default VMSPLIT_3G
  652. help
  653. Select the desired split between kernel and user memory.
  654. If you are not absolutely sure what you are doing, leave this
  655. option alone!
  656. config VMSPLIT_3G
  657. bool "3G/1G user/kernel split"
  658. config VMSPLIT_2G
  659. bool "2G/2G user/kernel split"
  660. config VMSPLIT_1G
  661. bool "1G/3G user/kernel split"
  662. endchoice
  663. config PAGE_OFFSET
  664. hex
  665. default 0x40000000 if VMSPLIT_1G
  666. default 0x80000000 if VMSPLIT_2G
  667. default 0xC0000000
  668. config NR_CPUS
  669. int "Maximum number of CPUs (2-32)"
  670. range 2 32
  671. depends on SMP
  672. default "4"
  673. config HOTPLUG_CPU
  674. bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
  675. depends on SMP && HOTPLUG && EXPERIMENTAL
  676. help
  677. Say Y here to experiment with turning CPUs off and on. CPUs
  678. can be controlled through /sys/devices/system/cpu.
  679. config LOCAL_TIMERS
  680. bool "Use local timer interrupts"
  681. depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || REALVIEW_EB_A9MP)
  682. default y
  683. help
  684. Enable support for local timers on SMP platforms, rather then the
  685. legacy IPI broadcast method. Local timers allows the system
  686. accounting to be spread across the timer interval, preventing a
  687. "thundering herd" at every timer tick.
  688. config PREEMPT
  689. bool "Preemptible Kernel (EXPERIMENTAL)"
  690. depends on EXPERIMENTAL
  691. help
  692. This option reduces the latency of the kernel when reacting to
  693. real-time or interactive events by allowing a low priority process to
  694. be preempted even if it is in kernel mode executing a system call.
  695. This allows applications to run more reliably even when the system is
  696. under load.
  697. Say Y here if you are building a kernel for a desktop, embedded
  698. or real-time system. Say N if you are unsure.
  699. config HZ
  700. int
  701. default 128 if ARCH_L7200
  702. default 200 if ARCH_EBSA110 || ARCH_S3C2410
  703. default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
  704. default AT91_TIMER_HZ if ARCH_AT91
  705. default 100
  706. config AEABI
  707. bool "Use the ARM EABI to compile the kernel"
  708. help
  709. This option allows for the kernel to be compiled using the latest
  710. ARM ABI (aka EABI). This is only useful if you are using a user
  711. space environment that is also compiled with EABI.
  712. Since there are major incompatibilities between the legacy ABI and
  713. EABI, especially with regard to structure member alignment, this
  714. option also changes the kernel syscall calling convention to
  715. disambiguate both ABIs and allow for backward compatibility support
  716. (selected with CONFIG_OABI_COMPAT).
  717. To use this you need GCC version 4.0.0 or later.
  718. config OABI_COMPAT
  719. bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
  720. depends on AEABI && EXPERIMENTAL
  721. default y
  722. help
  723. This option preserves the old syscall interface along with the
  724. new (ARM EABI) one. It also provides a compatibility layer to
  725. intercept syscalls that have structure arguments which layout
  726. in memory differs between the legacy ABI and the new ARM EABI
  727. (only for non "thumb" binaries). This option adds a tiny
  728. overhead to all syscalls and produces a slightly larger kernel.
  729. If you know you'll be using only pure EABI user space then you
  730. can say N here. If this option is not selected and you attempt
  731. to execute a legacy ABI binary then the result will be
  732. UNPREDICTABLE (in fact it can be predicted that it won't work
  733. at all). If in doubt say Y.
  734. config ARCH_FLATMEM_HAS_HOLES
  735. bool
  736. default y
  737. depends on FLATMEM
  738. # Discontigmem is deprecated
  739. config ARCH_DISCONTIGMEM_ENABLE
  740. bool
  741. config ARCH_SPARSEMEM_ENABLE
  742. bool
  743. config ARCH_SPARSEMEM_DEFAULT
  744. def_bool ARCH_SPARSEMEM_ENABLE
  745. config ARCH_SELECT_MEMORY_MODEL
  746. def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
  747. config NODES_SHIFT
  748. int
  749. default "4" if ARCH_LH7A40X
  750. default "2"
  751. depends on NEED_MULTIPLE_NODES
  752. source "mm/Kconfig"
  753. config LEDS
  754. bool "Timer and CPU usage LEDs"
  755. depends on ARCH_CDB89712 || ARCH_EBSA110 || \
  756. ARCH_EBSA285 || ARCH_IMX || ARCH_INTEGRATOR || \
  757. ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
  758. ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
  759. ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
  760. ARCH_AT91 || ARCH_DAVINCI || \
  761. ARCH_KS8695 || MACH_RD88F5182
  762. help
  763. If you say Y here, the LEDs on your machine will be used
  764. to provide useful information about your current system status.
  765. If you are compiling a kernel for a NetWinder or EBSA-285, you will
  766. be able to select which LEDs are active using the options below. If
  767. you are compiling a kernel for the EBSA-110 or the LART however, the
  768. red LED will simply flash regularly to indicate that the system is
  769. still functional. It is safe to say Y here if you have a CATS
  770. system, but the driver will do nothing.
  771. config LEDS_TIMER
  772. bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
  773. OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
  774. || MACH_OMAP_PERSEUS2
  775. depends on LEDS
  776. depends on !GENERIC_CLOCKEVENTS
  777. default y if ARCH_EBSA110
  778. help
  779. If you say Y here, one of the system LEDs (the green one on the
  780. NetWinder, the amber one on the EBSA285, or the red one on the LART)
  781. will flash regularly to indicate that the system is still
  782. operational. This is mainly useful to kernel hackers who are
  783. debugging unstable kernels.
  784. The LART uses the same LED for both Timer LED and CPU usage LED
  785. functions. You may choose to use both, but the Timer LED function
  786. will overrule the CPU usage LED.
  787. config LEDS_CPU
  788. bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
  789. !ARCH_OMAP) \
  790. || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
  791. || MACH_OMAP_PERSEUS2
  792. depends on LEDS
  793. help
  794. If you say Y here, the red LED will be used to give a good real
  795. time indication of CPU usage, by lighting whenever the idle task
  796. is not currently executing.
  797. The LART uses the same LED for both Timer LED and CPU usage LED
  798. functions. You may choose to use both, but the Timer LED function
  799. will overrule the CPU usage LED.
  800. config ALIGNMENT_TRAP
  801. bool
  802. depends on CPU_CP15_MMU
  803. default y if !ARCH_EBSA110
  804. help
  805. ARM processors cannot fetch/store information which is not
  806. naturally aligned on the bus, i.e., a 4 byte fetch must start at an
  807. address divisible by 4. On 32-bit ARM processors, these non-aligned
  808. fetch/store instructions will be emulated in software if you say
  809. here, which has a severe performance impact. This is necessary for
  810. correct operation of some network protocols. With an IP-only
  811. configuration it is safe to say N, otherwise say Y.
  812. endmenu
  813. menu "Boot options"
  814. # Compressed boot loader in ROM. Yes, we really want to ask about
  815. # TEXT and BSS so we preserve their values in the config files.
  816. config ZBOOT_ROM_TEXT
  817. hex "Compressed ROM boot loader base address"
  818. default "0"
  819. help
  820. The physical address at which the ROM-able zImage is to be
  821. placed in the target. Platforms which normally make use of
  822. ROM-able zImage formats normally set this to a suitable
  823. value in their defconfig file.
  824. If ZBOOT_ROM is not enabled, this has no effect.
  825. config ZBOOT_ROM_BSS
  826. hex "Compressed ROM boot loader BSS address"
  827. default "0"
  828. help
  829. The base address of an area of read/write memory in the target
  830. for the ROM-able zImage which must be available while the
  831. decompressor is running. It must be large enough to hold the
  832. entire decompressed kernel plus an additional 128 KiB.
  833. Platforms which normally make use of ROM-able zImage formats
  834. normally set this to a suitable value in their defconfig file.
  835. If ZBOOT_ROM is not enabled, this has no effect.
  836. config ZBOOT_ROM
  837. bool "Compressed boot loader in ROM/flash"
  838. depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
  839. help
  840. Say Y here if you intend to execute your compressed kernel image
  841. (zImage) directly from ROM or flash. If unsure, say N.
  842. config CMDLINE
  843. string "Default kernel command string"
  844. default ""
  845. help
  846. On some architectures (EBSA110 and CATS), there is currently no way
  847. for the boot loader to pass arguments to the kernel. For these
  848. architectures, you should supply some command-line options at build
  849. time by entering them here. As a minimum, you should specify the
  850. memory size and the root device (e.g., mem=64M root=/dev/nfs).
  851. config XIP_KERNEL
  852. bool "Kernel Execute-In-Place from ROM"
  853. depends on !ZBOOT_ROM
  854. help
  855. Execute-In-Place allows the kernel to run from non-volatile storage
  856. directly addressable by the CPU, such as NOR flash. This saves RAM
  857. space since the text section of the kernel is not loaded from flash
  858. to RAM. Read-write sections, such as the data section and stack,
  859. are still copied to RAM. The XIP kernel is not compressed since
  860. it has to run directly from flash, so it will take more space to
  861. store it. The flash address used to link the kernel object files,
  862. and for storing it, is configuration dependent. Therefore, if you
  863. say Y here, you must know the proper physical address where to
  864. store the kernel image depending on your own flash memory usage.
  865. Also note that the make target becomes "make xipImage" rather than
  866. "make zImage" or "make Image". The final kernel binary to put in
  867. ROM memory will be arch/arm/boot/xipImage.
  868. If unsure, say N.
  869. config XIP_PHYS_ADDR
  870. hex "XIP Kernel Physical Location"
  871. depends on XIP_KERNEL
  872. default "0x00080000"
  873. help
  874. This is the physical address in your flash memory the kernel will
  875. be linked for and stored to. This address is dependent on your
  876. own flash usage.
  877. config KEXEC
  878. bool "Kexec system call (EXPERIMENTAL)"
  879. depends on EXPERIMENTAL
  880. help
  881. kexec is a system call that implements the ability to shutdown your
  882. current kernel, and to start another kernel. It is like a reboot
  883. but it is independent of the system firmware. And like a reboot
  884. you can start any kernel with it, not just Linux.
  885. It is an ongoing process to be certain the hardware in a machine
  886. is properly shutdown, so do not be surprised if this code does not
  887. initially work for you. It may help to enable device hotplugging
  888. support.
  889. config ATAGS_PROC
  890. bool "Export atags in procfs"
  891. depends on KEXEC
  892. default y
  893. help
  894. Should the atags used to boot the kernel be exported in an "atags"
  895. file in procfs. Useful with kexec.
  896. endmenu
  897. menu "CPU Power Management"
  898. if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX || ARCH_PXA)
  899. source "drivers/cpufreq/Kconfig"
  900. config CPU_FREQ_SA1100
  901. bool
  902. depends on CPU_FREQ && (SA1100_H3100 || SA1100_H3600 || SA1100_H3800 || SA1100_LART || SA1100_PLEB || SA1100_BADGE4 || SA1100_HACKKIT)
  903. default y
  904. config CPU_FREQ_SA1110
  905. bool
  906. depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
  907. default y
  908. config CPU_FREQ_INTEGRATOR
  909. tristate "CPUfreq driver for ARM Integrator CPUs"
  910. depends on ARCH_INTEGRATOR && CPU_FREQ
  911. default y
  912. help
  913. This enables the CPUfreq driver for ARM Integrator CPUs.
  914. For details, take a look at <file:Documentation/cpu-freq>.
  915. If in doubt, say Y.
  916. config CPU_FREQ_IMX
  917. tristate "CPUfreq driver for i.MX CPUs"
  918. depends on ARCH_IMX && CPU_FREQ
  919. default n
  920. help
  921. This enables the CPUfreq driver for i.MX CPUs.
  922. If in doubt, say N.
  923. config CPU_FREQ_PXA
  924. bool
  925. depends on CPU_FREQ && ARCH_PXA && PXA25x
  926. default y
  927. select CPU_FREQ_DEFAULT_GOV_USERSPACE
  928. endif
  929. source "drivers/cpuidle/Kconfig"
  930. endmenu
  931. menu "Floating point emulation"
  932. comment "At least one emulation must be selected"
  933. config FPE_NWFPE
  934. bool "NWFPE math emulation"
  935. depends on !AEABI || OABI_COMPAT
  936. ---help---
  937. Say Y to include the NWFPE floating point emulator in the kernel.
  938. This is necessary to run most binaries. Linux does not currently
  939. support floating point hardware so you need to say Y here even if
  940. your machine has an FPA or floating point co-processor podule.
  941. You may say N here if you are going to load the Acorn FPEmulator
  942. early in the bootup.
  943. config FPE_NWFPE_XP
  944. bool "Support extended precision"
  945. depends on FPE_NWFPE
  946. help
  947. Say Y to include 80-bit support in the kernel floating-point
  948. emulator. Otherwise, only 32 and 64-bit support is compiled in.
  949. Note that gcc does not generate 80-bit operations by default,
  950. so in most cases this option only enlarges the size of the
  951. floating point emulator without any good reason.
  952. You almost surely want to say N here.
  953. config FPE_FASTFPE
  954. bool "FastFPE math emulation (EXPERIMENTAL)"
  955. depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
  956. ---help---
  957. Say Y here to include the FAST floating point emulator in the kernel.
  958. This is an experimental much faster emulator which now also has full
  959. precision for the mantissa. It does not support any exceptions.
  960. It is very simple, and approximately 3-6 times faster than NWFPE.
  961. It should be sufficient for most programs. It may be not suitable
  962. for scientific calculations, but you have to check this for yourself.
  963. If you do not feel you need a faster FP emulation you should better
  964. choose NWFPE.
  965. config VFP
  966. bool "VFP-format floating point maths"
  967. depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
  968. help
  969. Say Y to include VFP support code in the kernel. This is needed
  970. if your hardware includes a VFP unit.
  971. Please see <file:Documentation/arm/VFP/release-notes.txt> for
  972. release notes and additional status information.
  973. Say N if your target does not have VFP hardware.
  974. config VFPv3
  975. bool
  976. depends on VFP
  977. default y if CPU_V7
  978. config NEON
  979. bool "Advanced SIMD (NEON) Extension support"
  980. depends on VFPv3 && CPU_V7
  981. help
  982. Say Y to include support code for NEON, the ARMv7 Advanced SIMD
  983. Extension.
  984. endmenu
  985. menu "Userspace binary formats"
  986. source "fs/Kconfig.binfmt"
  987. config ARTHUR
  988. tristate "RISC OS personality"
  989. depends on !AEABI
  990. help
  991. Say Y here to include the kernel code necessary if you want to run
  992. Acorn RISC OS/Arthur binaries under Linux. This code is still very
  993. experimental; if this sounds frightening, say N and sleep in peace.
  994. You can also say M here to compile this support as a module (which
  995. will be called arthur).
  996. endmenu
  997. menu "Power management options"
  998. source "kernel/power/Kconfig"
  999. config ARCH_SUSPEND_POSSIBLE
  1000. def_bool y
  1001. endmenu
  1002. source "net/Kconfig"
  1003. menu "Device Drivers"
  1004. source "drivers/base/Kconfig"
  1005. source "drivers/connector/Kconfig"
  1006. if ALIGNMENT_TRAP || !CPU_CP15_MMU
  1007. source "drivers/mtd/Kconfig"
  1008. endif
  1009. source "drivers/parport/Kconfig"
  1010. source "drivers/pnp/Kconfig"
  1011. source "drivers/block/Kconfig"
  1012. # misc before ide - BLK_DEV_SGIIOC4 depends on SGI_IOC4
  1013. source "drivers/misc/Kconfig"
  1014. source "drivers/ide/Kconfig"
  1015. source "drivers/scsi/Kconfig"
  1016. source "drivers/ata/Kconfig"
  1017. source "drivers/md/Kconfig"
  1018. source "drivers/message/fusion/Kconfig"
  1019. source "drivers/ieee1394/Kconfig"
  1020. source "drivers/message/i2o/Kconfig"
  1021. source "drivers/net/Kconfig"
  1022. source "drivers/isdn/Kconfig"
  1023. # input before char - char/joystick depends on it. As does USB.
  1024. source "drivers/input/Kconfig"
  1025. source "drivers/char/Kconfig"
  1026. source "drivers/i2c/Kconfig"
  1027. source "drivers/spi/Kconfig"
  1028. source "drivers/gpio/Kconfig"
  1029. source "drivers/w1/Kconfig"
  1030. source "drivers/power/Kconfig"
  1031. source "drivers/hwmon/Kconfig"
  1032. source "drivers/thermal/Kconfig"
  1033. source "drivers/watchdog/Kconfig"
  1034. source "drivers/ssb/Kconfig"
  1035. #source "drivers/l3/Kconfig"
  1036. source "drivers/mfd/Kconfig"
  1037. source "drivers/media/Kconfig"
  1038. source "drivers/video/Kconfig"
  1039. source "sound/Kconfig"
  1040. source "drivers/hid/Kconfig"
  1041. source "drivers/usb/Kconfig"
  1042. source "drivers/uwb/Kconfig"
  1043. source "drivers/mmc/Kconfig"
  1044. source "drivers/memstick/Kconfig"
  1045. source "drivers/accessibility/Kconfig"
  1046. source "drivers/leds/Kconfig"
  1047. source "drivers/rtc/Kconfig"
  1048. source "drivers/dma/Kconfig"
  1049. source "drivers/dca/Kconfig"
  1050. source "drivers/auxdisplay/Kconfig"
  1051. source "drivers/regulator/Kconfig"
  1052. source "drivers/uio/Kconfig"
  1053. source "drivers/staging/Kconfig"
  1054. endmenu
  1055. source "fs/Kconfig"
  1056. source "arch/arm/Kconfig.debug"
  1057. source "security/Kconfig"
  1058. source "crypto/Kconfig"
  1059. source "lib/Kconfig"