Kconfig 34 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 ARCH_REQUIRE_GPIOLIB
  193. select HAVE_CLK
  194. help
  195. This enables support for systems based on the Atmel AT91RM9200,
  196. AT91SAM9 and AT91CAP9 processors.
  197. config ARCH_CLPS711X
  198. bool "Cirrus Logic CLPS711x/EP721x-based"
  199. select CPU_ARM720T
  200. help
  201. Support for Cirrus Logic 711x/721x based boards.
  202. config ARCH_GEMINI
  203. bool "Cortina Systems Gemini"
  204. select CPU_FA526
  205. select GENERIC_GPIO
  206. select ARCH_REQUIRE_GPIOLIB
  207. help
  208. Support for the Cortina Systems Gemini family SoCs
  209. config ARCH_EBSA110
  210. bool "EBSA-110"
  211. select CPU_SA110
  212. select ISA
  213. select NO_IOPORT
  214. help
  215. This is an evaluation board for the StrongARM processor available
  216. from Digital. It has limited hardware on-board, including an
  217. Ethernet interface, two PCMCIA sockets, two serial ports and a
  218. parallel port.
  219. config ARCH_EP93XX
  220. bool "EP93xx-based"
  221. select CPU_ARM920T
  222. select ARM_AMBA
  223. select ARM_VIC
  224. select GENERIC_GPIO
  225. select HAVE_CLK
  226. select COMMON_CLKDEV
  227. select ARCH_REQUIRE_GPIOLIB
  228. help
  229. This enables support for the Cirrus EP93xx series of CPUs.
  230. config ARCH_FOOTBRIDGE
  231. bool "FootBridge"
  232. select CPU_SA110
  233. select FOOTBRIDGE
  234. help
  235. Support for systems based on the DC21285 companion chip
  236. ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
  237. config ARCH_MXC
  238. bool "Freescale MXC/iMX-based"
  239. select GENERIC_TIME
  240. select GENERIC_CLOCKEVENTS
  241. select ARCH_MTD_XIP
  242. select GENERIC_GPIO
  243. select ARCH_REQUIRE_GPIOLIB
  244. help
  245. Support for Freescale MXC/iMX-based family of processors
  246. config ARCH_NETX
  247. bool "Hilscher NetX based"
  248. select CPU_ARM926T
  249. select ARM_VIC
  250. select GENERIC_CLOCKEVENTS
  251. select GENERIC_TIME
  252. help
  253. This enables support for systems based on the Hilscher NetX Soc
  254. config ARCH_H720X
  255. bool "Hynix HMS720x-based"
  256. select CPU_ARM720T
  257. select ISA_DMA_API
  258. help
  259. This enables support for systems based on the Hynix HMS720x
  260. config ARCH_IMX
  261. bool "IMX"
  262. select CPU_ARM920T
  263. select GENERIC_GPIO
  264. select GENERIC_TIME
  265. select GENERIC_CLOCKEVENTS
  266. help
  267. Support for Motorola's i.MX family of processors (MX1, MXL).
  268. config ARCH_IOP13XX
  269. bool "IOP13xx-based"
  270. depends on MMU
  271. select CPU_XSC3
  272. select PLAT_IOP
  273. select PCI
  274. select ARCH_SUPPORTS_MSI
  275. select VMSPLIT_1G
  276. help
  277. Support for Intel's IOP13XX (XScale) family of processors.
  278. config ARCH_IOP32X
  279. bool "IOP32x-based"
  280. depends on MMU
  281. select CPU_XSCALE
  282. select PLAT_IOP
  283. select PCI
  284. select GENERIC_GPIO
  285. select ARCH_REQUIRE_GPIOLIB
  286. help
  287. Support for Intel's 80219 and IOP32X (XScale) family of
  288. processors.
  289. config ARCH_IOP33X
  290. bool "IOP33x-based"
  291. depends on MMU
  292. select CPU_XSCALE
  293. select PLAT_IOP
  294. select PCI
  295. select GENERIC_GPIO
  296. select ARCH_REQUIRE_GPIOLIB
  297. help
  298. Support for Intel's IOP33X (XScale) family of processors.
  299. config ARCH_IXP23XX
  300. bool "IXP23XX-based"
  301. depends on MMU
  302. select CPU_XSC3
  303. select PCI
  304. help
  305. Support for Intel's IXP23xx (XScale) family of processors.
  306. config ARCH_IXP2000
  307. bool "IXP2400/2800-based"
  308. depends on MMU
  309. select CPU_XSCALE
  310. select PCI
  311. help
  312. Support for Intel's IXP2400/2800 (XScale) family of processors.
  313. config ARCH_IXP4XX
  314. bool "IXP4xx-based"
  315. depends on MMU
  316. select CPU_XSCALE
  317. select GENERIC_GPIO
  318. select GENERIC_TIME
  319. select GENERIC_CLOCKEVENTS
  320. select DMABOUNCE if PCI
  321. help
  322. Support for Intel's IXP4XX (XScale) family of processors.
  323. config ARCH_L7200
  324. bool "LinkUp-L7200"
  325. select CPU_ARM720T
  326. select FIQ
  327. help
  328. Say Y here if you intend to run this kernel on a LinkUp Systems
  329. L7200 Software Development Board which uses an ARM720T processor.
  330. Information on this board can be obtained at:
  331. <http://www.linkupsys.com/>
  332. If you have any questions or comments about the Linux kernel port
  333. to this board, send e-mail to <sjhill@cotw.com>.
  334. config ARCH_KIRKWOOD
  335. bool "Marvell Kirkwood"
  336. select CPU_FEROCEON
  337. select PCI
  338. select GENERIC_GPIO
  339. select GENERIC_TIME
  340. select GENERIC_CLOCKEVENTS
  341. select PLAT_ORION
  342. help
  343. Support for the following Marvell Kirkwood series SoCs:
  344. 88F6180, 88F6192 and 88F6281.
  345. config ARCH_LOKI
  346. bool "Marvell Loki (88RC8480)"
  347. select CPU_FEROCEON
  348. select GENERIC_TIME
  349. select GENERIC_CLOCKEVENTS
  350. select PLAT_ORION
  351. help
  352. Support for the Marvell Loki (88RC8480) SoC.
  353. config ARCH_MV78XX0
  354. bool "Marvell MV78xx0"
  355. select CPU_FEROCEON
  356. select PCI
  357. select GENERIC_GPIO
  358. select GENERIC_TIME
  359. select GENERIC_CLOCKEVENTS
  360. select PLAT_ORION
  361. help
  362. Support for the following Marvell MV78xx0 series SoCs:
  363. MV781x0, MV782x0.
  364. config ARCH_ORION5X
  365. bool "Marvell Orion"
  366. depends on MMU
  367. select CPU_FEROCEON
  368. select PCI
  369. select GENERIC_GPIO
  370. select GENERIC_TIME
  371. select GENERIC_CLOCKEVENTS
  372. select PLAT_ORION
  373. help
  374. Support for the following Marvell Orion 5x series SoCs:
  375. Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
  376. Orion-2 (5281), Orion-1-90 (6183).
  377. config ARCH_MMP
  378. bool "Marvell PXA168/910"
  379. depends on MMU
  380. select GENERIC_GPIO
  381. select ARCH_REQUIRE_GPIOLIB
  382. select HAVE_CLK
  383. select COMMON_CLKDEV
  384. select GENERIC_TIME
  385. select GENERIC_CLOCKEVENTS
  386. select TICK_ONESHOT
  387. select PLAT_PXA
  388. help
  389. Support for Marvell's PXA168/910 processor line.
  390. config ARCH_KS8695
  391. bool "Micrel/Kendin KS8695"
  392. select CPU_ARM922T
  393. select GENERIC_GPIO
  394. select ARCH_REQUIRE_GPIOLIB
  395. help
  396. Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
  397. System-on-Chip devices.
  398. config ARCH_NS9XXX
  399. bool "NetSilicon NS9xxx"
  400. select CPU_ARM926T
  401. select GENERIC_GPIO
  402. select GENERIC_TIME
  403. select GENERIC_CLOCKEVENTS
  404. select HAVE_CLK
  405. help
  406. Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
  407. System.
  408. <http://www.digi.com/products/microprocessors/index.jsp>
  409. config ARCH_W90X900
  410. bool "Nuvoton W90X900 CPU"
  411. select CPU_ARM926T
  412. select ARCH_REQUIRE_GPIOLIB
  413. select GENERIC_GPIO
  414. help
  415. Support for Nuvoton (Winbond logic dept.) ARM9 processor,You
  416. can login www.mcuos.com or www.nuvoton.com to know more.
  417. config ARCH_PNX4008
  418. bool "Philips Nexperia PNX4008 Mobile"
  419. select CPU_ARM926T
  420. select HAVE_CLK
  421. help
  422. This enables support for Philips PNX4008 mobile platform.
  423. config ARCH_PXA
  424. bool "PXA2xx/PXA3xx-based"
  425. depends on MMU
  426. select ARCH_MTD_XIP
  427. select GENERIC_GPIO
  428. select HAVE_CLK
  429. select COMMON_CLKDEV
  430. select ARCH_REQUIRE_GPIOLIB
  431. select HAVE_CLK
  432. select COMMON_CLKDEV
  433. select GENERIC_TIME
  434. select GENERIC_CLOCKEVENTS
  435. select TICK_ONESHOT
  436. select PLAT_PXA
  437. help
  438. Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
  439. config ARCH_MSM
  440. bool "Qualcomm MSM"
  441. select CPU_V6
  442. select GENERIC_TIME
  443. select GENERIC_CLOCKEVENTS
  444. help
  445. Support for Qualcomm MSM7K based systems. This runs on the ARM11
  446. apps processor of the MSM7K and depends on a shared memory
  447. interface to the ARM9 modem processor which runs the baseband stack
  448. and controls some vital subsystems (clock and power control, etc).
  449. config ARCH_RPC
  450. bool "RiscPC"
  451. select ARCH_ACORN
  452. select FIQ
  453. select TIMER_ACORN
  454. select ARCH_MAY_HAVE_PC_FDC
  455. select HAVE_PATA_PLATFORM
  456. select ISA_DMA_API
  457. select NO_IOPORT
  458. select ARCH_SPARSEMEM_ENABLE
  459. help
  460. On the Acorn Risc-PC, Linux can support the internal IDE disk and
  461. CD-ROM interface, serial and parallel port, and the floppy drive.
  462. config ARCH_SA1100
  463. bool "SA1100-based"
  464. select CPU_SA1100
  465. select ISA
  466. select ARCH_SPARSEMEM_ENABLE
  467. select ARCH_MTD_XIP
  468. select GENERIC_GPIO
  469. select GENERIC_TIME
  470. select GENERIC_CLOCKEVENTS
  471. select HAVE_CLK
  472. select TICK_ONESHOT
  473. select ARCH_REQUIRE_GPIOLIB
  474. help
  475. Support for StrongARM 11x0 based boards.
  476. config ARCH_S3C2410
  477. bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
  478. select GENERIC_GPIO
  479. select HAVE_CLK
  480. help
  481. Samsung S3C2410X CPU based systems, such as the Simtec Electronics
  482. BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
  483. the Samsung SMDK2410 development board (and derivatives).
  484. config ARCH_S3C64XX
  485. bool "Samsung S3C64XX"
  486. select GENERIC_GPIO
  487. select HAVE_CLK
  488. help
  489. Samsung S3C64XX series based systems
  490. config ARCH_SHARK
  491. bool "Shark"
  492. select CPU_SA110
  493. select ISA
  494. select ISA_DMA
  495. select ZONE_DMA
  496. select PCI
  497. help
  498. Support for the StrongARM based Digital DNARD machine, also known
  499. as "Shark" (<http://www.shark-linux.de/shark.html>).
  500. config ARCH_LH7A40X
  501. bool "Sharp LH7A40X"
  502. select CPU_ARM922T
  503. select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
  504. select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
  505. help
  506. Say Y here for systems based on one of the Sharp LH7A40X
  507. System on a Chip processors. These CPUs include an ARM922T
  508. core with a wide array of integrated devices for
  509. hand-held and low-power applications.
  510. config ARCH_DAVINCI
  511. bool "TI DaVinci"
  512. select CPU_ARM926T
  513. select GENERIC_TIME
  514. select GENERIC_CLOCKEVENTS
  515. select GENERIC_GPIO
  516. select ARCH_REQUIRE_GPIOLIB
  517. select HAVE_CLK
  518. select ZONE_DMA
  519. help
  520. Support for TI's DaVinci platform.
  521. config ARCH_OMAP
  522. bool "TI OMAP"
  523. select GENERIC_GPIO
  524. select HAVE_CLK
  525. select ARCH_REQUIRE_GPIOLIB
  526. select GENERIC_TIME
  527. select GENERIC_CLOCKEVENTS
  528. help
  529. Support for TI's OMAP platform (OMAP1 and OMAP2).
  530. endchoice
  531. source "arch/arm/mach-clps711x/Kconfig"
  532. source "arch/arm/mach-ep93xx/Kconfig"
  533. source "arch/arm/mach-footbridge/Kconfig"
  534. source "arch/arm/mach-gemini/Kconfig"
  535. source "arch/arm/mach-integrator/Kconfig"
  536. source "arch/arm/mach-iop32x/Kconfig"
  537. source "arch/arm/mach-iop33x/Kconfig"
  538. source "arch/arm/mach-iop13xx/Kconfig"
  539. source "arch/arm/mach-ixp4xx/Kconfig"
  540. source "arch/arm/mach-ixp2000/Kconfig"
  541. source "arch/arm/mach-ixp23xx/Kconfig"
  542. source "arch/arm/mach-loki/Kconfig"
  543. source "arch/arm/mach-mv78xx0/Kconfig"
  544. source "arch/arm/mach-pxa/Kconfig"
  545. source "arch/arm/plat-pxa/Kconfig"
  546. source "arch/arm/mach-mmp/Kconfig"
  547. source "arch/arm/mach-sa1100/Kconfig"
  548. source "arch/arm/plat-omap/Kconfig"
  549. source "arch/arm/mach-omap1/Kconfig"
  550. source "arch/arm/mach-omap2/Kconfig"
  551. source "arch/arm/mach-orion5x/Kconfig"
  552. source "arch/arm/mach-kirkwood/Kconfig"
  553. source "arch/arm/plat-s3c24xx/Kconfig"
  554. source "arch/arm/plat-s3c64xx/Kconfig"
  555. source "arch/arm/plat-s3c/Kconfig"
  556. if ARCH_S3C2410
  557. source "arch/arm/mach-s3c2400/Kconfig"
  558. source "arch/arm/mach-s3c2410/Kconfig"
  559. source "arch/arm/mach-s3c2412/Kconfig"
  560. source "arch/arm/mach-s3c2440/Kconfig"
  561. source "arch/arm/mach-s3c2442/Kconfig"
  562. source "arch/arm/mach-s3c2443/Kconfig"
  563. endif
  564. if ARCH_S3C64XX
  565. source "arch/arm/mach-s3c6400/Kconfig"
  566. source "arch/arm/mach-s3c6410/Kconfig"
  567. endif
  568. source "arch/arm/mach-lh7a40x/Kconfig"
  569. source "arch/arm/mach-imx/Kconfig"
  570. source "arch/arm/mach-h720x/Kconfig"
  571. source "arch/arm/mach-versatile/Kconfig"
  572. source "arch/arm/mach-aaec2000/Kconfig"
  573. source "arch/arm/mach-realview/Kconfig"
  574. source "arch/arm/mach-at91/Kconfig"
  575. source "arch/arm/plat-mxc/Kconfig"
  576. source "arch/arm/mach-netx/Kconfig"
  577. source "arch/arm/mach-ns9xxx/Kconfig"
  578. source "arch/arm/mach-davinci/Kconfig"
  579. source "arch/arm/mach-ks8695/Kconfig"
  580. source "arch/arm/mach-msm/Kconfig"
  581. source "arch/arm/mach-w90x900/Kconfig"
  582. # Definitions to make life easier
  583. config ARCH_ACORN
  584. bool
  585. config PLAT_IOP
  586. bool
  587. config PLAT_ORION
  588. bool
  589. config PLAT_PXA
  590. bool
  591. source arch/arm/mm/Kconfig
  592. config IWMMXT
  593. bool "Enable iWMMXt support"
  594. depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
  595. default y if PXA27x || PXA3xx || ARCH_MMP
  596. help
  597. Enable support for iWMMXt context switching at run time if
  598. running on a CPU that supports it.
  599. # bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
  600. config XSCALE_PMU
  601. bool
  602. depends on CPU_XSCALE && !XSCALE_PMU_TIMER
  603. default y
  604. if !MMU
  605. source "arch/arm/Kconfig-nommu"
  606. endif
  607. endmenu
  608. source "arch/arm/common/Kconfig"
  609. config FORCE_MAX_ZONEORDER
  610. int
  611. depends on SA1111
  612. default "9"
  613. menu "Bus support"
  614. config ARM_AMBA
  615. bool
  616. config ISA
  617. bool
  618. help
  619. Find out whether you have ISA slots on your motherboard. ISA is the
  620. name of a bus system, i.e. the way the CPU talks to the other stuff
  621. inside your box. Other bus systems are PCI, EISA, MicroChannel
  622. (MCA) or VESA. ISA is an older system, now being displaced by PCI;
  623. newer boards don't support it. If you have ISA, say Y, otherwise N.
  624. # Select ISA DMA controller support
  625. config ISA_DMA
  626. bool
  627. select ISA_DMA_API
  628. # Select ISA DMA interface
  629. config ISA_DMA_API
  630. bool
  631. config PCI
  632. bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
  633. help
  634. Find out whether you have a PCI motherboard. PCI is the name of a
  635. bus system, i.e. the way the CPU talks to the other stuff inside
  636. your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
  637. VESA. If you have PCI, say Y, otherwise N.
  638. config PCI_SYSCALL
  639. def_bool PCI
  640. # Select the host bridge type
  641. config PCI_HOST_VIA82C505
  642. bool
  643. depends on PCI && ARCH_SHARK
  644. default y
  645. config PCI_HOST_ITE8152
  646. bool
  647. depends on PCI && MACH_ARMCORE
  648. default y
  649. select DMABOUNCE
  650. source "drivers/pci/Kconfig"
  651. source "drivers/pcmcia/Kconfig"
  652. endmenu
  653. menu "Kernel Features"
  654. source "kernel/time/Kconfig"
  655. config SMP
  656. bool "Symmetric Multi-Processing (EXPERIMENTAL)"
  657. depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP)
  658. select USE_GENERIC_SMP_HELPERS
  659. help
  660. This enables support for systems with more than one CPU. If you have
  661. a system with only one CPU, like most personal computers, say N. If
  662. you have a system with more than one CPU, say Y.
  663. If you say N here, the kernel will run on single and multiprocessor
  664. machines, but will use only one CPU of a multiprocessor machine. If
  665. you say Y here, the kernel will run on many, but not all, single
  666. processor machines. On a single processor machine, the kernel will
  667. run faster if you say N here.
  668. See also <file:Documentation/i386/IO-APIC.txt>,
  669. <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
  670. <http://www.linuxdoc.org/docs.html#howto>.
  671. If you don't know what to do here, say N.
  672. choice
  673. prompt "Memory split"
  674. default VMSPLIT_3G
  675. help
  676. Select the desired split between kernel and user memory.
  677. If you are not absolutely sure what you are doing, leave this
  678. option alone!
  679. config VMSPLIT_3G
  680. bool "3G/1G user/kernel split"
  681. config VMSPLIT_2G
  682. bool "2G/2G user/kernel split"
  683. config VMSPLIT_1G
  684. bool "1G/3G user/kernel split"
  685. endchoice
  686. config PAGE_OFFSET
  687. hex
  688. default 0x40000000 if VMSPLIT_1G
  689. default 0x80000000 if VMSPLIT_2G
  690. default 0xC0000000
  691. config NR_CPUS
  692. int "Maximum number of CPUs (2-32)"
  693. range 2 32
  694. depends on SMP
  695. default "4"
  696. config HOTPLUG_CPU
  697. bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
  698. depends on SMP && HOTPLUG && EXPERIMENTAL
  699. help
  700. Say Y here to experiment with turning CPUs off and on. CPUs
  701. can be controlled through /sys/devices/system/cpu.
  702. config LOCAL_TIMERS
  703. bool "Use local timer interrupts"
  704. depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || REALVIEW_EB_A9MP)
  705. default y
  706. help
  707. Enable support for local timers on SMP platforms, rather then the
  708. legacy IPI broadcast method. Local timers allows the system
  709. accounting to be spread across the timer interval, preventing a
  710. "thundering herd" at every timer tick.
  711. config PREEMPT
  712. bool "Preemptible Kernel (EXPERIMENTAL)"
  713. depends on EXPERIMENTAL
  714. help
  715. This option reduces the latency of the kernel when reacting to
  716. real-time or interactive events by allowing a low priority process to
  717. be preempted even if it is in kernel mode executing a system call.
  718. This allows applications to run more reliably even when the system is
  719. under load.
  720. Say Y here if you are building a kernel for a desktop, embedded
  721. or real-time system. Say N if you are unsure.
  722. config HZ
  723. int
  724. default 128 if ARCH_L7200
  725. default 200 if ARCH_EBSA110 || ARCH_S3C2410
  726. default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
  727. default AT91_TIMER_HZ if ARCH_AT91
  728. default 100
  729. config AEABI
  730. bool "Use the ARM EABI to compile the kernel"
  731. help
  732. This option allows for the kernel to be compiled using the latest
  733. ARM ABI (aka EABI). This is only useful if you are using a user
  734. space environment that is also compiled with EABI.
  735. Since there are major incompatibilities between the legacy ABI and
  736. EABI, especially with regard to structure member alignment, this
  737. option also changes the kernel syscall calling convention to
  738. disambiguate both ABIs and allow for backward compatibility support
  739. (selected with CONFIG_OABI_COMPAT).
  740. To use this you need GCC version 4.0.0 or later.
  741. config OABI_COMPAT
  742. bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
  743. depends on AEABI && EXPERIMENTAL
  744. default y
  745. help
  746. This option preserves the old syscall interface along with the
  747. new (ARM EABI) one. It also provides a compatibility layer to
  748. intercept syscalls that have structure arguments which layout
  749. in memory differs between the legacy ABI and the new ARM EABI
  750. (only for non "thumb" binaries). This option adds a tiny
  751. overhead to all syscalls and produces a slightly larger kernel.
  752. If you know you'll be using only pure EABI user space then you
  753. can say N here. If this option is not selected and you attempt
  754. to execute a legacy ABI binary then the result will be
  755. UNPREDICTABLE (in fact it can be predicted that it won't work
  756. at all). If in doubt say Y.
  757. config ARCH_FLATMEM_HAS_HOLES
  758. bool
  759. default y
  760. depends on FLATMEM
  761. # Discontigmem is deprecated
  762. config ARCH_DISCONTIGMEM_ENABLE
  763. bool
  764. config ARCH_SPARSEMEM_ENABLE
  765. bool
  766. config ARCH_SPARSEMEM_DEFAULT
  767. def_bool ARCH_SPARSEMEM_ENABLE
  768. config ARCH_SELECT_MEMORY_MODEL
  769. def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
  770. config NODES_SHIFT
  771. int
  772. default "4" if ARCH_LH7A40X
  773. default "2"
  774. depends on NEED_MULTIPLE_NODES
  775. config HIGHMEM
  776. bool "High Memory Support (EXPERIMENTAL)"
  777. depends on MMU && EXPERIMENTAL
  778. help
  779. The address space of ARM processors is only 4 Gigabytes large
  780. and it has to accommodate user address space, kernel address
  781. space as well as some memory mapped IO. That means that, if you
  782. have a large amount of physical memory and/or IO, not all of the
  783. memory can be "permanently mapped" by the kernel. The physical
  784. memory that is not permanently mapped is called "high memory".
  785. Depending on the selected kernel/user memory split, minimum
  786. vmalloc space and actual amount of RAM, you may not need this
  787. option which should result in a slightly faster kernel.
  788. If unsure, say n.
  789. source "mm/Kconfig"
  790. config LEDS
  791. bool "Timer and CPU usage LEDs"
  792. depends on ARCH_CDB89712 || ARCH_EBSA110 || \
  793. ARCH_EBSA285 || ARCH_IMX || ARCH_INTEGRATOR || \
  794. ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
  795. ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
  796. ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
  797. ARCH_AT91 || ARCH_DAVINCI || \
  798. ARCH_KS8695 || MACH_RD88F5182
  799. help
  800. If you say Y here, the LEDs on your machine will be used
  801. to provide useful information about your current system status.
  802. If you are compiling a kernel for a NetWinder or EBSA-285, you will
  803. be able to select which LEDs are active using the options below. If
  804. you are compiling a kernel for the EBSA-110 or the LART however, the
  805. red LED will simply flash regularly to indicate that the system is
  806. still functional. It is safe to say Y here if you have a CATS
  807. system, but the driver will do nothing.
  808. config LEDS_TIMER
  809. bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
  810. OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
  811. || MACH_OMAP_PERSEUS2
  812. depends on LEDS
  813. depends on !GENERIC_CLOCKEVENTS
  814. default y if ARCH_EBSA110
  815. help
  816. If you say Y here, one of the system LEDs (the green one on the
  817. NetWinder, the amber one on the EBSA285, or the red one on the LART)
  818. will flash regularly to indicate that the system is still
  819. operational. This is mainly useful to kernel hackers who are
  820. debugging unstable kernels.
  821. The LART uses the same LED for both Timer LED and CPU usage LED
  822. functions. You may choose to use both, but the Timer LED function
  823. will overrule the CPU usage LED.
  824. config LEDS_CPU
  825. bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
  826. !ARCH_OMAP) \
  827. || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
  828. || MACH_OMAP_PERSEUS2
  829. depends on LEDS
  830. help
  831. If you say Y here, the red LED will be used to give a good real
  832. time indication of CPU usage, by lighting whenever the idle task
  833. is not currently executing.
  834. The LART uses the same LED for both Timer LED and CPU usage LED
  835. functions. You may choose to use both, but the Timer LED function
  836. will overrule the CPU usage LED.
  837. config ALIGNMENT_TRAP
  838. bool
  839. depends on CPU_CP15_MMU
  840. default y if !ARCH_EBSA110
  841. help
  842. ARM processors cannot fetch/store information which is not
  843. naturally aligned on the bus, i.e., a 4 byte fetch must start at an
  844. address divisible by 4. On 32-bit ARM processors, these non-aligned
  845. fetch/store instructions will be emulated in software if you say
  846. here, which has a severe performance impact. This is necessary for
  847. correct operation of some network protocols. With an IP-only
  848. configuration it is safe to say N, otherwise say Y.
  849. endmenu
  850. menu "Boot options"
  851. # Compressed boot loader in ROM. Yes, we really want to ask about
  852. # TEXT and BSS so we preserve their values in the config files.
  853. config ZBOOT_ROM_TEXT
  854. hex "Compressed ROM boot loader base address"
  855. default "0"
  856. help
  857. The physical address at which the ROM-able zImage is to be
  858. placed in the target. Platforms which normally make use of
  859. ROM-able zImage formats normally set this to a suitable
  860. value in their defconfig file.
  861. If ZBOOT_ROM is not enabled, this has no effect.
  862. config ZBOOT_ROM_BSS
  863. hex "Compressed ROM boot loader BSS address"
  864. default "0"
  865. help
  866. The base address of an area of read/write memory in the target
  867. for the ROM-able zImage which must be available while the
  868. decompressor is running. It must be large enough to hold the
  869. entire decompressed kernel plus an additional 128 KiB.
  870. Platforms which normally make use of ROM-able zImage formats
  871. normally set this to a suitable value in their defconfig file.
  872. If ZBOOT_ROM is not enabled, this has no effect.
  873. config ZBOOT_ROM
  874. bool "Compressed boot loader in ROM/flash"
  875. depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
  876. help
  877. Say Y here if you intend to execute your compressed kernel image
  878. (zImage) directly from ROM or flash. If unsure, say N.
  879. config CMDLINE
  880. string "Default kernel command string"
  881. default ""
  882. help
  883. On some architectures (EBSA110 and CATS), there is currently no way
  884. for the boot loader to pass arguments to the kernel. For these
  885. architectures, you should supply some command-line options at build
  886. time by entering them here. As a minimum, you should specify the
  887. memory size and the root device (e.g., mem=64M root=/dev/nfs).
  888. config XIP_KERNEL
  889. bool "Kernel Execute-In-Place from ROM"
  890. depends on !ZBOOT_ROM
  891. help
  892. Execute-In-Place allows the kernel to run from non-volatile storage
  893. directly addressable by the CPU, such as NOR flash. This saves RAM
  894. space since the text section of the kernel is not loaded from flash
  895. to RAM. Read-write sections, such as the data section and stack,
  896. are still copied to RAM. The XIP kernel is not compressed since
  897. it has to run directly from flash, so it will take more space to
  898. store it. The flash address used to link the kernel object files,
  899. and for storing it, is configuration dependent. Therefore, if you
  900. say Y here, you must know the proper physical address where to
  901. store the kernel image depending on your own flash memory usage.
  902. Also note that the make target becomes "make xipImage" rather than
  903. "make zImage" or "make Image". The final kernel binary to put in
  904. ROM memory will be arch/arm/boot/xipImage.
  905. If unsure, say N.
  906. config XIP_PHYS_ADDR
  907. hex "XIP Kernel Physical Location"
  908. depends on XIP_KERNEL
  909. default "0x00080000"
  910. help
  911. This is the physical address in your flash memory the kernel will
  912. be linked for and stored to. This address is dependent on your
  913. own flash usage.
  914. config KEXEC
  915. bool "Kexec system call (EXPERIMENTAL)"
  916. depends on EXPERIMENTAL
  917. help
  918. kexec is a system call that implements the ability to shutdown your
  919. current kernel, and to start another kernel. It is like a reboot
  920. but it is independent of the system firmware. And like a reboot
  921. you can start any kernel with it, not just Linux.
  922. It is an ongoing process to be certain the hardware in a machine
  923. is properly shutdown, so do not be surprised if this code does not
  924. initially work for you. It may help to enable device hotplugging
  925. support.
  926. config ATAGS_PROC
  927. bool "Export atags in procfs"
  928. depends on KEXEC
  929. default y
  930. help
  931. Should the atags used to boot the kernel be exported in an "atags"
  932. file in procfs. Useful with kexec.
  933. endmenu
  934. menu "CPU Power Management"
  935. if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX || ARCH_PXA)
  936. source "drivers/cpufreq/Kconfig"
  937. config CPU_FREQ_SA1100
  938. bool
  939. depends on CPU_FREQ && (SA1100_H3100 || SA1100_H3600 || SA1100_LART || SA1100_PLEB || SA1100_BADGE4 || SA1100_HACKKIT)
  940. default y
  941. config CPU_FREQ_SA1110
  942. bool
  943. depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
  944. default y
  945. config CPU_FREQ_INTEGRATOR
  946. tristate "CPUfreq driver for ARM Integrator CPUs"
  947. depends on ARCH_INTEGRATOR && CPU_FREQ
  948. default y
  949. help
  950. This enables the CPUfreq driver for ARM Integrator CPUs.
  951. For details, take a look at <file:Documentation/cpu-freq>.
  952. If in doubt, say Y.
  953. config CPU_FREQ_IMX
  954. tristate "CPUfreq driver for i.MX CPUs"
  955. depends on ARCH_IMX && CPU_FREQ
  956. default n
  957. help
  958. This enables the CPUfreq driver for i.MX CPUs.
  959. If in doubt, say N.
  960. config CPU_FREQ_PXA
  961. bool
  962. depends on CPU_FREQ && ARCH_PXA && PXA25x
  963. default y
  964. select CPU_FREQ_DEFAULT_GOV_USERSPACE
  965. endif
  966. source "drivers/cpuidle/Kconfig"
  967. endmenu
  968. menu "Floating point emulation"
  969. comment "At least one emulation must be selected"
  970. config FPE_NWFPE
  971. bool "NWFPE math emulation"
  972. depends on !AEABI || OABI_COMPAT
  973. ---help---
  974. Say Y to include the NWFPE floating point emulator in the kernel.
  975. This is necessary to run most binaries. Linux does not currently
  976. support floating point hardware so you need to say Y here even if
  977. your machine has an FPA or floating point co-processor podule.
  978. You may say N here if you are going to load the Acorn FPEmulator
  979. early in the bootup.
  980. config FPE_NWFPE_XP
  981. bool "Support extended precision"
  982. depends on FPE_NWFPE
  983. help
  984. Say Y to include 80-bit support in the kernel floating-point
  985. emulator. Otherwise, only 32 and 64-bit support is compiled in.
  986. Note that gcc does not generate 80-bit operations by default,
  987. so in most cases this option only enlarges the size of the
  988. floating point emulator without any good reason.
  989. You almost surely want to say N here.
  990. config FPE_FASTFPE
  991. bool "FastFPE math emulation (EXPERIMENTAL)"
  992. depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
  993. ---help---
  994. Say Y here to include the FAST floating point emulator in the kernel.
  995. This is an experimental much faster emulator which now also has full
  996. precision for the mantissa. It does not support any exceptions.
  997. It is very simple, and approximately 3-6 times faster than NWFPE.
  998. It should be sufficient for most programs. It may be not suitable
  999. for scientific calculations, but you have to check this for yourself.
  1000. If you do not feel you need a faster FP emulation you should better
  1001. choose NWFPE.
  1002. config VFP
  1003. bool "VFP-format floating point maths"
  1004. depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
  1005. help
  1006. Say Y to include VFP support code in the kernel. This is needed
  1007. if your hardware includes a VFP unit.
  1008. Please see <file:Documentation/arm/VFP/release-notes.txt> for
  1009. release notes and additional status information.
  1010. Say N if your target does not have VFP hardware.
  1011. config VFPv3
  1012. bool
  1013. depends on VFP
  1014. default y if CPU_V7
  1015. config NEON
  1016. bool "Advanced SIMD (NEON) Extension support"
  1017. depends on VFPv3 && CPU_V7
  1018. help
  1019. Say Y to include support code for NEON, the ARMv7 Advanced SIMD
  1020. Extension.
  1021. endmenu
  1022. menu "Userspace binary formats"
  1023. source "fs/Kconfig.binfmt"
  1024. config ARTHUR
  1025. tristate "RISC OS personality"
  1026. depends on !AEABI
  1027. help
  1028. Say Y here to include the kernel code necessary if you want to run
  1029. Acorn RISC OS/Arthur binaries under Linux. This code is still very
  1030. experimental; if this sounds frightening, say N and sleep in peace.
  1031. You can also say M here to compile this support as a module (which
  1032. will be called arthur).
  1033. endmenu
  1034. menu "Power management options"
  1035. source "kernel/power/Kconfig"
  1036. config ARCH_SUSPEND_POSSIBLE
  1037. def_bool y
  1038. endmenu
  1039. source "net/Kconfig"
  1040. menu "Device Drivers"
  1041. source "drivers/base/Kconfig"
  1042. source "drivers/connector/Kconfig"
  1043. if ALIGNMENT_TRAP || !CPU_CP15_MMU
  1044. source "drivers/mtd/Kconfig"
  1045. endif
  1046. source "drivers/parport/Kconfig"
  1047. source "drivers/pnp/Kconfig"
  1048. source "drivers/block/Kconfig"
  1049. # misc before ide - BLK_DEV_SGIIOC4 depends on SGI_IOC4
  1050. source "drivers/misc/Kconfig"
  1051. source "drivers/ide/Kconfig"
  1052. source "drivers/scsi/Kconfig"
  1053. source "drivers/ata/Kconfig"
  1054. source "drivers/md/Kconfig"
  1055. source "drivers/message/fusion/Kconfig"
  1056. source "drivers/ieee1394/Kconfig"
  1057. source "drivers/message/i2o/Kconfig"
  1058. source "drivers/net/Kconfig"
  1059. source "drivers/isdn/Kconfig"
  1060. # input before char - char/joystick depends on it. As does USB.
  1061. source "drivers/input/Kconfig"
  1062. source "drivers/char/Kconfig"
  1063. source "drivers/i2c/Kconfig"
  1064. source "drivers/spi/Kconfig"
  1065. source "drivers/gpio/Kconfig"
  1066. source "drivers/w1/Kconfig"
  1067. source "drivers/power/Kconfig"
  1068. source "drivers/hwmon/Kconfig"
  1069. source "drivers/thermal/Kconfig"
  1070. source "drivers/watchdog/Kconfig"
  1071. source "drivers/ssb/Kconfig"
  1072. #source "drivers/l3/Kconfig"
  1073. source "drivers/mfd/Kconfig"
  1074. source "drivers/media/Kconfig"
  1075. source "drivers/video/Kconfig"
  1076. source "sound/Kconfig"
  1077. source "drivers/hid/Kconfig"
  1078. source "drivers/usb/Kconfig"
  1079. source "drivers/uwb/Kconfig"
  1080. source "drivers/mmc/Kconfig"
  1081. source "drivers/memstick/Kconfig"
  1082. source "drivers/accessibility/Kconfig"
  1083. source "drivers/leds/Kconfig"
  1084. source "drivers/rtc/Kconfig"
  1085. source "drivers/dma/Kconfig"
  1086. source "drivers/dca/Kconfig"
  1087. source "drivers/auxdisplay/Kconfig"
  1088. source "drivers/regulator/Kconfig"
  1089. source "drivers/uio/Kconfig"
  1090. source "drivers/staging/Kconfig"
  1091. endmenu
  1092. source "fs/Kconfig"
  1093. source "arch/arm/Kconfig.debug"
  1094. source "security/Kconfig"
  1095. source "crypto/Kconfig"
  1096. source "lib/Kconfig"