Kconfig 17 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/SuperH Kernel Configuration"
  6. config SUPERH
  7. bool
  8. default y
  9. select EMBEDDED
  10. help
  11. The SuperH is a RISC processor targeted for use in embedded systems
  12. and consumer electronics; it was also used in the Sega Dreamcast
  13. gaming console. The SuperH port has a home page at
  14. <http://www.linux-sh.org/>.
  15. config RWSEM_GENERIC_SPINLOCK
  16. bool
  17. default y
  18. config RWSEM_XCHGADD_ALGORITHM
  19. bool
  20. config GENERIC_BUG
  21. def_bool y
  22. depends on BUG
  23. config GENERIC_FIND_NEXT_BIT
  24. bool
  25. default y
  26. config GENERIC_HWEIGHT
  27. bool
  28. default y
  29. config GENERIC_HARDIRQS
  30. bool
  31. default y
  32. config GENERIC_IRQ_PROBE
  33. bool
  34. default y
  35. config GENERIC_CALIBRATE_DELAY
  36. bool
  37. default y
  38. config GENERIC_IOMAP
  39. bool
  40. config GENERIC_TIME
  41. def_bool n
  42. config SYS_SUPPORTS_APM_EMULATION
  43. bool
  44. config ARCH_MAY_HAVE_PC_FDC
  45. bool
  46. config STACKTRACE_SUPPORT
  47. bool
  48. default y
  49. config LOCKDEP_SUPPORT
  50. bool
  51. default y
  52. config ARCH_HAS_ILOG2_U32
  53. bool
  54. default n
  55. config ARCH_HAS_ILOG2_U64
  56. bool
  57. default n
  58. source "init/Kconfig"
  59. menu "System type"
  60. config SOLUTION_ENGINE
  61. bool
  62. choice
  63. prompt "SuperH system type"
  64. default SH_UNKNOWN
  65. config SH_SOLUTION_ENGINE
  66. bool "SolutionEngine"
  67. select SOLUTION_ENGINE
  68. help
  69. Select SolutionEngine if configuring for a Hitachi SH7709
  70. or SH7750 evaluation board.
  71. config SH_7751_SOLUTION_ENGINE
  72. bool "SolutionEngine7751"
  73. select SOLUTION_ENGINE
  74. select CPU_SUBTYPE_SH7751
  75. help
  76. Select 7751 SolutionEngine if configuring for a Hitachi SH7751
  77. evaluation board.
  78. config SH_7300_SOLUTION_ENGINE
  79. bool "SolutionEngine7300"
  80. select SOLUTION_ENGINE
  81. select CPU_SUBTYPE_SH7300
  82. help
  83. Select 7300 SolutionEngine if configuring for a Hitachi
  84. SH7300(SH-Mobile V) evaluation board.
  85. config SH_7343_SOLUTION_ENGINE
  86. bool "SolutionEngine7343"
  87. select SOLUTION_ENGINE
  88. select CPU_SUBTYPE_SH7343
  89. help
  90. Select 7343 SolutionEngine if configuring for a Hitachi
  91. SH7343 (SH-Mobile 3AS) evaluation board.
  92. config SH_73180_SOLUTION_ENGINE
  93. bool "SolutionEngine73180"
  94. select SOLUTION_ENGINE
  95. select CPU_SUBTYPE_SH73180
  96. help
  97. Select 73180 SolutionEngine if configuring for a Hitachi
  98. SH73180(SH-Mobile 3) evaluation board.
  99. config SH_7751_SYSTEMH
  100. bool "SystemH7751R"
  101. select CPU_SUBTYPE_SH7751R
  102. help
  103. Select SystemH if you are configuring for a Renesas SystemH
  104. 7751R evaluation board.
  105. config SH_HP6XX
  106. bool "HP6XX"
  107. select SYS_SUPPORTS_APM_EMULATION
  108. help
  109. Select HP6XX if configuring for a HP jornada HP6xx.
  110. More information (hardware only) at
  111. <http://www.hp.com/jornada/>.
  112. config SH_SATURN
  113. bool "Saturn"
  114. select CPU_SUBTYPE_SH7604
  115. help
  116. Select Saturn if configuring for a SEGA Saturn.
  117. config SH_DREAMCAST
  118. bool "Dreamcast"
  119. select CPU_SUBTYPE_SH7091
  120. help
  121. Select Dreamcast if configuring for a SEGA Dreamcast.
  122. More information at
  123. <http://www.m17n.org/linux-sh/dreamcast/>. There is a
  124. Dreamcast project is at <http://linuxdc.sourceforge.net/>.
  125. config SH_MPC1211
  126. bool "Interface MPC1211"
  127. help
  128. CTP/PCI-SH02 is a CPU module computer that is produced
  129. by Interface Corporation.
  130. More information at <http://www.interface.co.jp>
  131. config SH_SH03
  132. bool "Interface CTP/PCI-SH03"
  133. help
  134. CTP/PCI-SH03 is a CPU module computer that is produced
  135. by Interface Corporation.
  136. More information at <http://www.interface.co.jp>
  137. config SH_SECUREEDGE5410
  138. bool "SecureEdge5410"
  139. select CPU_SUBTYPE_SH7751R
  140. help
  141. Select SecureEdge5410 if configuring for a SnapGear SH board.
  142. This includes both the OEM SecureEdge products as well as the
  143. SME product line.
  144. config SH_HS7751RVOIP
  145. bool "HS7751RVOIP"
  146. select CPU_SUBTYPE_SH7751R
  147. help
  148. Select HS7751RVOIP if configuring for a Renesas Technology
  149. Sales VoIP board.
  150. config SH_7710VOIPGW
  151. bool "SH7710-VOIP-GW"
  152. select CPU_SUBTYPE_SH7710
  153. help
  154. Select this option to build a kernel for the SH7710 based
  155. VOIP GW.
  156. config SH_RTS7751R2D
  157. bool "RTS7751R2D"
  158. select CPU_SUBTYPE_SH7751R
  159. help
  160. Select RTS7751R2D if configuring for a Renesas Technology
  161. Sales SH-Graphics board.
  162. config SH_HIGHLANDER
  163. bool "Highlander"
  164. config SH_EDOSK7705
  165. bool "EDOSK7705"
  166. select CPU_SUBTYPE_SH7705
  167. config SH_SH4202_MICRODEV
  168. bool "SH4-202 MicroDev"
  169. select CPU_SUBTYPE_SH4_202
  170. help
  171. Select SH4-202 MicroDev if configuring for a SuperH MicroDev board
  172. with an SH4-202 CPU.
  173. config SH_LANDISK
  174. bool "LANDISK"
  175. select CPU_SUBTYPE_SH7751R
  176. help
  177. I-O DATA DEVICE, INC. "LANDISK Series" support.
  178. config SH_TITAN
  179. bool "TITAN"
  180. select CPU_SUBTYPE_SH7751R
  181. help
  182. Select Titan if you are configuring for a Nimble Microsystems
  183. NetEngine NP51R.
  184. config SH_SHMIN
  185. bool "SHMIN"
  186. select CPU_SUBTYPE_SH7706
  187. help
  188. Select SHMIN if configuring for the SHMIN board.
  189. config SH_7206_SOLUTION_ENGINE
  190. bool "SolutionEngine7206"
  191. select CPU_SUBTYPE_SH7206
  192. help
  193. Select 7206 SolutionEngine if configuring for a Hitachi SH7206
  194. evaluation board.
  195. config SH_7619_SOLUTION_ENGINE
  196. bool "SolutionEngine7619"
  197. select CPU_SUBTYPE_SH7619
  198. help
  199. Select 7619 SolutionEngine if configuring for a Hitachi SH7619
  200. evaluation board.
  201. config SH_LBOX_RE2
  202. bool "L-BOX RE2"
  203. select CPU_SUBTYPE_SH7751R
  204. help
  205. Select L-BOX RE2 if configuring for the NTT COMWARE L-BOX RE2.
  206. config SH_UNKNOWN
  207. bool "BareCPU"
  208. help
  209. "Bare CPU" aka "unknown" means an SH-based system which is not one
  210. of the specific ones mentioned above, which means you need to enter
  211. all sorts of stuff like CONFIG_MEMORY_START because the config
  212. system doesn't already know what it is. You get a machine vector
  213. without any platform-specific code in it, so things like the RTC may
  214. not work.
  215. This option is for the early stages of porting to a new machine.
  216. endchoice
  217. source "arch/sh/boards/renesas/hs7751rvoip/Kconfig"
  218. source "arch/sh/boards/renesas/rts7751r2d/Kconfig"
  219. source "arch/sh/boards/renesas/r7780rp/Kconfig"
  220. source "arch/sh/mm/Kconfig"
  221. config CF_ENABLER
  222. bool "Compact Flash Enabler support"
  223. depends on SH_SOLUTION_ENGINE || SH_UNKNOWN || SH_SH03
  224. ---help---
  225. Compact Flash is a small, removable mass storage device introduced
  226. in 1994 originally as a PCMCIA device. If you say `Y' here, you
  227. compile in support for Compact Flash devices directly connected to
  228. a SuperH processor. A Compact Flash FAQ is available at
  229. <http://www.compactflash.org/faqs/faq.htm>.
  230. If your board has "Directly Connected" CompactFlash at area 5 or 6,
  231. you may want to enable this option. Then, you can use CF as
  232. primary IDE drive (only tested for SanDisk).
  233. If in doubt, select 'N'.
  234. choice
  235. prompt "Compact Flash Connection Area"
  236. depends on CF_ENABLER
  237. default CF_AREA6
  238. config CF_AREA5
  239. bool "Area5"
  240. help
  241. If your board has "Directly Connected" CompactFlash, You should
  242. select the area where your CF is connected to.
  243. - "Area5" if CompactFlash is connected to Area 5 (0x14000000)
  244. - "Area6" if it is connected to Area 6 (0x18000000)
  245. "Area6" will work for most boards.
  246. config CF_AREA6
  247. bool "Area6"
  248. endchoice
  249. config CF_BASE_ADDR
  250. hex
  251. depends on CF_ENABLER
  252. default "0xb8000000" if CF_AREA6
  253. default "0xb4000000" if CF_AREA5
  254. menu "Processor features"
  255. choice
  256. prompt "Endianess selection"
  257. default CPU_LITTLE_ENDIAN
  258. help
  259. Some SuperH machines can be configured for either little or big
  260. endian byte order. These modes require different kernels.
  261. config CPU_LITTLE_ENDIAN
  262. bool "Little Endian"
  263. config CPU_BIG_ENDIAN
  264. bool "Big Endian"
  265. endchoice
  266. config SH_FPU
  267. bool "FPU support"
  268. depends on !CPU_SH3
  269. default y
  270. help
  271. Selecting this option will enable support for SH processors that
  272. have FPU units (ie, SH77xx).
  273. This option must be set in order to enable the FPU.
  274. config SH_FPU_EMU
  275. bool "FPU emulation support"
  276. depends on !SH_FPU && EXPERIMENTAL
  277. default n
  278. help
  279. Selecting this option will enable support for software FPU emulation.
  280. Most SH-3 users will want to say Y here, whereas most SH-4 users will
  281. want to say N.
  282. config SH_DSP
  283. bool "DSP support"
  284. default y if SH4AL_DSP || !CPU_SH4
  285. default n
  286. help
  287. Selecting this option will enable support for SH processors that
  288. have DSP units (ie, SH2-DSP, SH3-DSP, and SH4AL-DSP).
  289. This option must be set in order to enable the DSP.
  290. config SH_ADC
  291. bool "ADC support"
  292. depends on CPU_SH3
  293. default y
  294. help
  295. Selecting this option will allow the Linux kernel to use SH3 on-chip
  296. ADC module.
  297. If unsure, say N.
  298. config SH_STORE_QUEUES
  299. bool "Support for Store Queues"
  300. depends on CPU_SH4
  301. help
  302. Selecting this option will enable an in-kernel API for manipulating
  303. the store queues integrated in the SH-4 processors.
  304. config SPECULATIVE_EXECUTION
  305. bool "Speculative subroutine return"
  306. depends on CPU_SUBTYPE_SH7780 && EXPERIMENTAL
  307. help
  308. This enables support for a speculative instruction fetch for
  309. subroutine return. There are various pitfalls associated with
  310. this, as outlined in the SH7780 hardware manual.
  311. If unsure, say N.
  312. config CPU_HAS_INTEVT
  313. bool
  314. config CPU_HAS_PINT_IRQ
  315. bool
  316. config CPU_HAS_MASKREG_IRQ
  317. bool
  318. config CPU_HAS_INTC2_IRQ
  319. bool
  320. config CPU_HAS_IPR_IRQ
  321. bool
  322. config CPU_HAS_SR_RB
  323. bool "CPU has SR.RB"
  324. depends on CPU_SH3 || CPU_SH4
  325. default y
  326. help
  327. This will enable the use of SR.RB register bank usage. Processors
  328. that are lacking this bit must have another method in place for
  329. accomplishing what is taken care of by the banked registers.
  330. See <file:Documentation/sh/register-banks.txt> for further
  331. information on SR.RB and register banking in the kernel in general.
  332. config CPU_HAS_PTEA
  333. bool
  334. endmenu
  335. menu "Timer and clock configuration"
  336. if !GENERIC_TIME
  337. config SH_TMU
  338. bool "TMU timer support"
  339. depends on CPU_SH3 || CPU_SH4
  340. default y
  341. help
  342. This enables the use of the TMU as the system timer.
  343. config SH_CMT
  344. bool "CMT timer support"
  345. depends on CPU_SH2
  346. default y
  347. help
  348. This enables the use of the CMT as the system timer.
  349. config SH_MTU2
  350. bool "MTU2 timer support"
  351. depends on CPU_SH2A
  352. default n
  353. help
  354. This enables the use of the MTU2 as the system timer.
  355. endif
  356. config SH_TIMER_IRQ
  357. int
  358. default "28" if CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785
  359. default "86" if CPU_SUBTYPE_SH7619
  360. default "140" if CPU_SUBTYPE_SH7206
  361. default "16"
  362. config NO_IDLE_HZ
  363. bool "Dynamic tick timer"
  364. help
  365. Select this option if you want to disable continuous timer ticks
  366. and have them programmed to occur as required. This option saves
  367. power as the system can remain in idle state for longer.
  368. By default dynamic tick is disabled during the boot, and can be
  369. manually enabled with:
  370. echo 1 > /sys/devices/system/timer/timer0/dyn_tick
  371. Alternatively, if you want dynamic tick automatically enabled
  372. during boot, pass "dyntick=enable" via the kernel command string.
  373. Please note that dynamic tick may affect the accuracy of
  374. timekeeping on some platforms depending on the implementation.
  375. config SH_PCLK_FREQ
  376. int "Peripheral clock frequency (in Hz)"
  377. default "27000000" if CPU_SUBTYPE_SH73180 || CPU_SUBTYPE_SH7343
  378. default "31250000" if CPU_SUBTYPE_SH7619
  379. default "33333333" if CPU_SUBTYPE_SH7300 || CPU_SUBTYPE_SH7770 || \
  380. CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \
  381. CPU_SUBTYPE_SH7206
  382. default "50000000" if CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7780 || \
  383. CPU_SUBTYPE_SH7785
  384. default "60000000" if CPU_SUBTYPE_SH7751
  385. default "66000000" if CPU_SUBTYPE_SH4_202
  386. help
  387. This option is used to specify the peripheral clock frequency.
  388. This is necessary for determining the reference clock value on
  389. platforms lacking an RTC.
  390. config SH_CLK_MD
  391. int "CPU Mode Pin Setting"
  392. default 0
  393. depends on CPU_SUBTYPE_SH7619 || CPU_SUBTYPE_SH7206
  394. help
  395. MD2 - MD0 pin setting.
  396. endmenu
  397. menu "CPU Frequency scaling"
  398. source "drivers/cpufreq/Kconfig"
  399. config SH_CPU_FREQ
  400. tristate "SuperH CPU Frequency driver"
  401. depends on CPU_FREQ
  402. select CPU_FREQ_TABLE
  403. help
  404. This adds the cpufreq driver for SuperH. At present, only
  405. the SH-4 is supported.
  406. For details, take a look at <file:Documentation/cpu-freq>.
  407. If unsure, say N.
  408. endmenu
  409. source "arch/sh/drivers/Kconfig"
  410. endmenu
  411. config ISA_DMA_API
  412. bool
  413. depends on SH_MPC1211
  414. default y
  415. menu "Kernel features"
  416. source kernel/Kconfig.hz
  417. config KEXEC
  418. bool "kexec system call (EXPERIMENTAL)"
  419. depends on EXPERIMENTAL
  420. help
  421. kexec is a system call that implements the ability to shutdown your
  422. current kernel, and to start another kernel. It is like a reboot
  423. but it is independent of the system firmware. And like a reboot
  424. you can start any kernel with it, not just Linux.
  425. The name comes from the similarity to the exec system call.
  426. It is an ongoing process to be certain the hardware in a machine
  427. is properly shutdown, so do not be surprised if this code does not
  428. initially work for you. It may help to enable device hotplugging
  429. support. As of this writing the exact hardware interface is
  430. strongly in flux, so no good recommendation can be made.
  431. config SMP
  432. bool "Symmetric multi-processing support"
  433. ---help---
  434. This enables support for systems with more than one CPU. If you have
  435. a system with only one CPU, like most personal computers, say N. If
  436. you have a system with more than one CPU, say Y.
  437. If you say N here, the kernel will run on single and multiprocessor
  438. machines, but will use only one CPU of a multiprocessor machine. If
  439. you say Y here, the kernel will run on many, but not all,
  440. singleprocessor machines. On a singleprocessor machine, the kernel
  441. will run faster if you say N here.
  442. People using multiprocessor machines who say Y here should also say
  443. Y to "Enhanced Real Time Clock Support", below.
  444. See also the <file:Documentation/smp.txt>,
  445. <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available
  446. at <http://www.tldp.org/docs.html#howto>.
  447. If you don't know what to do here, say N.
  448. config NR_CPUS
  449. int "Maximum number of CPUs (2-32)"
  450. range 2 32
  451. depends on SMP
  452. default "2"
  453. help
  454. This allows you to specify the maximum number of CPUs which this
  455. kernel will support. The maximum supported value is 32 and the
  456. minimum value which makes sense is 2.
  457. This is purely to save memory - each supported CPU adds
  458. approximately eight kilobytes to the kernel image.
  459. source "kernel/Kconfig.preempt"
  460. config NODES_SHIFT
  461. int
  462. default "1"
  463. depends on NEED_MULTIPLE_NODES
  464. endmenu
  465. menu "Boot options"
  466. config ZERO_PAGE_OFFSET
  467. hex "Zero page offset"
  468. default "0x00004000" if SH_MPC1211 || SH_SH03
  469. default "0x00010000" if PAGE_SIZE_64KB
  470. default "0x00002000" if PAGE_SIZE_8KB
  471. default "0x00001000"
  472. help
  473. This sets the default offset of zero page.
  474. config BOOT_LINK_OFFSET
  475. hex "Link address offset for booting"
  476. default "0x00800000"
  477. help
  478. This option allows you to set the link address offset of the zImage.
  479. This can be useful if you are on a board which has a small amount of
  480. memory.
  481. config UBC_WAKEUP
  482. bool "Wakeup UBC on startup"
  483. help
  484. Selecting this option will wakeup the User Break Controller (UBC) on
  485. startup. Although the UBC is left in an awake state when the processor
  486. comes up, some boot loaders misbehave by putting the UBC to sleep in a
  487. power saving state, which causes issues with things like ptrace().
  488. If unsure, say N.
  489. config CMDLINE_BOOL
  490. bool "Default bootloader kernel arguments"
  491. config CMDLINE
  492. string "Initial kernel command string"
  493. depends on CMDLINE_BOOL
  494. default "console=ttySC1,115200"
  495. endmenu
  496. menu "Bus options"
  497. # Even on SuperH devices which don't have an ISA bus,
  498. # this variable helps the PCMCIA modules handle
  499. # IRQ requesting properly -- Greg Banks.
  500. #
  501. # Though we're generally not interested in it when
  502. # we're not using PCMCIA, so we make it dependent on
  503. # PCMCIA outright. -- PFM.
  504. config ISA
  505. bool
  506. default y if PCMCIA
  507. help
  508. Find out whether you have ISA slots on your motherboard. ISA is the
  509. name of a bus system, i.e. the way the CPU talks to the other stuff
  510. inside your box. Other bus systems are PCI, EISA, MicroChannel
  511. (MCA) or VESA. ISA is an older system, now being displaced by PCI;
  512. newer boards don't support it. If you have ISA, say Y, otherwise N.
  513. config EISA
  514. bool
  515. ---help---
  516. The Extended Industry Standard Architecture (EISA) bus was
  517. developed as an open alternative to the IBM MicroChannel bus.
  518. The EISA bus provided some of the features of the IBM MicroChannel
  519. bus while maintaining backward compatibility with cards made for
  520. the older ISA bus. The EISA bus saw limited use between 1988 and
  521. 1995 when it was made obsolete by the PCI bus.
  522. Say Y here if you are building a kernel for an EISA-based machine.
  523. Otherwise, say N.
  524. config MCA
  525. bool
  526. help
  527. MicroChannel Architecture is found in some IBM PS/2 machines and
  528. laptops. It is a bus system similar to PCI or ISA. See
  529. <file:Documentation/mca.txt> (and especially the web page given
  530. there) before attempting to build an MCA bus kernel.
  531. config SBUS
  532. bool
  533. config SUPERHYWAY
  534. tristate "SuperHyway Bus support"
  535. depends on CPU_SUBTYPE_SH4_202
  536. source "arch/sh/drivers/pci/Kconfig"
  537. source "drivers/pci/Kconfig"
  538. source "drivers/pcmcia/Kconfig"
  539. source "drivers/pci/hotplug/Kconfig"
  540. endmenu
  541. menu "Executable file formats"
  542. source "fs/Kconfig.binfmt"
  543. endmenu
  544. menu "Power management options (EXPERIMENTAL)"
  545. depends on EXPERIMENTAL
  546. source kernel/power/Kconfig
  547. endmenu
  548. source "net/Kconfig"
  549. source "drivers/Kconfig"
  550. source "fs/Kconfig"
  551. source "arch/sh/oprofile/Kconfig"
  552. source "arch/sh/Kconfig.debug"
  553. source "security/Kconfig"
  554. source "crypto/Kconfig"
  555. source "lib/Kconfig"