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_FIND_NEXT_BIT
  21. bool
  22. default y
  23. config GENERIC_HWEIGHT
  24. bool
  25. default y
  26. config GENERIC_HARDIRQS
  27. bool
  28. default y
  29. config GENERIC_IRQ_PROBE
  30. bool
  31. default y
  32. config GENERIC_CALIBRATE_DELAY
  33. bool
  34. default y
  35. config GENERIC_IOMAP
  36. bool
  37. config GENERIC_TIME
  38. def_bool n
  39. config SYS_SUPPORTS_APM_EMULATION
  40. bool
  41. config ARCH_MAY_HAVE_PC_FDC
  42. bool
  43. config STACKTRACE_SUPPORT
  44. bool
  45. default y
  46. config LOCKDEP_SUPPORT
  47. bool
  48. default y
  49. config ARCH_HAS_ILOG2_U32
  50. bool
  51. default n
  52. config ARCH_HAS_ILOG2_U64
  53. bool
  54. default n
  55. source "init/Kconfig"
  56. menu "System type"
  57. config SOLUTION_ENGINE
  58. bool
  59. choice
  60. prompt "SuperH system type"
  61. default SH_UNKNOWN
  62. config SH_SOLUTION_ENGINE
  63. bool "SolutionEngine"
  64. select SOLUTION_ENGINE
  65. help
  66. Select SolutionEngine if configuring for a Hitachi SH7709
  67. or SH7750 evaluation board.
  68. config SH_7751_SOLUTION_ENGINE
  69. bool "SolutionEngine7751"
  70. select SOLUTION_ENGINE
  71. select CPU_SUBTYPE_SH7751
  72. help
  73. Select 7751 SolutionEngine if configuring for a Hitachi SH7751
  74. evaluation board.
  75. config SH_7300_SOLUTION_ENGINE
  76. bool "SolutionEngine7300"
  77. select SOLUTION_ENGINE
  78. select CPU_SUBTYPE_SH7300
  79. help
  80. Select 7300 SolutionEngine if configuring for a Hitachi
  81. SH7300(SH-Mobile V) evaluation board.
  82. config SH_7343_SOLUTION_ENGINE
  83. bool "SolutionEngine7343"
  84. select SOLUTION_ENGINE
  85. select CPU_SUBTYPE_SH7343
  86. help
  87. Select 7343 SolutionEngine if configuring for a Hitachi
  88. SH7343 (SH-Mobile 3AS) evaluation board.
  89. config SH_73180_SOLUTION_ENGINE
  90. bool "SolutionEngine73180"
  91. select SOLUTION_ENGINE
  92. select CPU_SUBTYPE_SH73180
  93. help
  94. Select 73180 SolutionEngine if configuring for a Hitachi
  95. SH73180(SH-Mobile 3) evaluation board.
  96. config SH_7751_SYSTEMH
  97. bool "SystemH7751R"
  98. select CPU_SUBTYPE_SH7751R
  99. help
  100. Select SystemH if you are configuring for a Renesas SystemH
  101. 7751R evaluation board.
  102. config SH_HP6XX
  103. bool "HP6XX"
  104. select SYS_SUPPORTS_APM_EMULATION
  105. help
  106. Select HP6XX if configuring for a HP jornada HP6xx.
  107. More information (hardware only) at
  108. <http://www.hp.com/jornada/>.
  109. config SH_EC3104
  110. bool "EC3104"
  111. help
  112. Select EC3104 if configuring for a system with an Eclipse
  113. International EC3104 chip, e.g. the Harris AD2000.
  114. config SH_SATURN
  115. bool "Saturn"
  116. select CPU_SUBTYPE_SH7604
  117. help
  118. Select Saturn if configuring for a SEGA Saturn.
  119. config SH_DREAMCAST
  120. bool "Dreamcast"
  121. select CPU_SUBTYPE_SH7091
  122. help
  123. Select Dreamcast if configuring for a SEGA Dreamcast.
  124. More information at
  125. <http://www.m17n.org/linux-sh/dreamcast/>. There is a
  126. Dreamcast project is at <http://linuxdc.sourceforge.net/>.
  127. config SH_BIGSUR
  128. bool "BigSur"
  129. config SH_MPC1211
  130. bool "Interface MPC1211"
  131. help
  132. CTP/PCI-SH02 is a CPU module computer that is produced
  133. by Interface Corporation.
  134. More information at <http://www.interface.co.jp>
  135. config SH_SH03
  136. bool "Interface CTP/PCI-SH03"
  137. help
  138. CTP/PCI-SH03 is a CPU module computer that is produced
  139. by Interface Corporation.
  140. More information at <http://www.interface.co.jp>
  141. config SH_SECUREEDGE5410
  142. bool "SecureEdge5410"
  143. select CPU_SUBTYPE_SH7751R
  144. help
  145. Select SecureEdge5410 if configuring for a SnapGear SH board.
  146. This includes both the OEM SecureEdge products as well as the
  147. SME product line.
  148. config SH_HS7751RVOIP
  149. bool "HS7751RVOIP"
  150. select CPU_SUBTYPE_SH7751R
  151. help
  152. Select HS7751RVOIP if configuring for a Renesas Technology
  153. Sales VoIP board.
  154. config SH_7710VOIPGW
  155. bool "SH7710-VOIP-GW"
  156. select CPU_SUBTYPE_SH7710
  157. help
  158. Select this option to build a kernel for the SH7710 based
  159. VOIP GW.
  160. config SH_RTS7751R2D
  161. bool "RTS7751R2D"
  162. select CPU_SUBTYPE_SH7751R
  163. help
  164. Select RTS7751R2D if configuring for a Renesas Technology
  165. Sales SH-Graphics board.
  166. config SH_R7780RP
  167. bool "R7780RP-1"
  168. select CPU_SUBTYPE_SH7780
  169. help
  170. Select R7780RP-1 if configuring for a Renesas Solutions
  171. HIGHLANDER board.
  172. config SH_EDOSK7705
  173. bool "EDOSK7705"
  174. select CPU_SUBTYPE_SH7705
  175. config SH_SH4202_MICRODEV
  176. bool "SH4-202 MicroDev"
  177. select CPU_SUBTYPE_SH4_202
  178. help
  179. Select SH4-202 MicroDev if configuring for a SuperH MicroDev board
  180. with an SH4-202 CPU.
  181. config SH_LANDISK
  182. bool "LANDISK"
  183. select CPU_SUBTYPE_SH7751R
  184. help
  185. I-O DATA DEVICE, INC. "LANDISK Series" support.
  186. config SH_TITAN
  187. bool "TITAN"
  188. select CPU_SUBTYPE_SH7751R
  189. help
  190. Select Titan if you are configuring for a Nimble Microsystems
  191. NetEngine NP51R.
  192. config SH_SHMIN
  193. bool "SHMIN"
  194. select CPU_SUBTYPE_SH7706
  195. help
  196. Select SHMIN if configuring for the SHMIN board.
  197. config SH_7206_SOLUTION_ENGINE
  198. bool "SolutionEngine7206"
  199. select CPU_SUBTYPE_SH7206
  200. help
  201. Select 7206 SolutionEngine if configuring for a Hitachi SH7206
  202. evaluation board.
  203. config SH_7619_SOLUTION_ENGINE
  204. bool "SolutionEngine7619"
  205. select CPU_SUBTYPE_SH7619
  206. help
  207. Select 7619 SolutionEngine if configuring for a Hitachi SH7619
  208. evaluation board.
  209. config SH_UNKNOWN
  210. bool "BareCPU"
  211. help
  212. "Bare CPU" aka "unknown" means an SH-based system which is not one
  213. of the specific ones mentioned above, which means you need to enter
  214. all sorts of stuff like CONFIG_MEMORY_START because the config
  215. system doesn't already know what it is. You get a machine vector
  216. without any platform-specific code in it, so things like the RTC may
  217. not work.
  218. This option is for the early stages of porting to a new machine.
  219. endchoice
  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 CPU_HAS_INTEVT
  305. bool
  306. config CPU_HAS_PINT_IRQ
  307. bool
  308. config CPU_HAS_MASKREG_IRQ
  309. bool
  310. config CPU_HAS_INTC2_IRQ
  311. bool
  312. config CPU_HAS_IPR_IRQ
  313. bool
  314. config CPU_HAS_SR_RB
  315. bool "CPU has SR.RB"
  316. depends on CPU_SH3 || CPU_SH4
  317. default y
  318. help
  319. This will enable the use of SR.RB register bank usage. Processors
  320. that are lacking this bit must have another method in place for
  321. accomplishing what is taken care of by the banked registers.
  322. See <file:Documentation/sh/register-banks.txt> for further
  323. information on SR.RB and register banking in the kernel in general.
  324. config CPU_HAS_PTEA
  325. bool
  326. endmenu
  327. menu "Timer support"
  328. depends on !GENERIC_TIME
  329. config SH_TMU
  330. bool "TMU timer support"
  331. depends on CPU_SH3 || CPU_SH4
  332. default y
  333. help
  334. This enables the use of the TMU as the system timer.
  335. config SH_CMT
  336. bool "CMT timer support"
  337. depends on CPU_SH2
  338. default y
  339. help
  340. This enables the use of the CMT as the system timer.
  341. config SH_MTU2
  342. bool "MTU2 timer support"
  343. depends on CPU_SH2A
  344. default n
  345. help
  346. This enables the use of the MTU2 as the system timer.
  347. endmenu
  348. source "arch/sh/boards/renesas/hs7751rvoip/Kconfig"
  349. source "arch/sh/boards/renesas/rts7751r2d/Kconfig"
  350. source "arch/sh/boards/renesas/r7780rp/Kconfig"
  351. config SH_TIMER_IRQ
  352. int
  353. default "28" if CPU_SUBTYPE_SH7780
  354. default "86" if CPU_SUBTYPE_SH7619
  355. default "140" if CPU_SUBTYPE_SH7206
  356. default "16"
  357. config NO_IDLE_HZ
  358. bool "Dynamic tick timer"
  359. help
  360. Select this option if you want to disable continuous timer ticks
  361. and have them programmed to occur as required. This option saves
  362. power as the system can remain in idle state for longer.
  363. By default dynamic tick is disabled during the boot, and can be
  364. manually enabled with:
  365. echo 1 > /sys/devices/system/timer/timer0/dyn_tick
  366. Alternatively, if you want dynamic tick automatically enabled
  367. during boot, pass "dyntick=enable" via the kernel command string.
  368. Please note that dynamic tick may affect the accuracy of
  369. timekeeping on some platforms depending on the implementation.
  370. config SH_PCLK_FREQ
  371. int "Peripheral clock frequency (in Hz)"
  372. default "27000000" if CPU_SUBTYPE_SH73180 || CPU_SUBTYPE_SH7343
  373. default "31250000" if CPU_SUBTYPE_SH7619
  374. default "33333333" if CPU_SUBTYPE_SH7300 || CPU_SUBTYPE_SH7770 || \
  375. CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \
  376. CPU_SUBTYPE_SH7206
  377. default "50000000" if CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7780
  378. default "60000000" if CPU_SUBTYPE_SH7751
  379. default "66000000" if CPU_SUBTYPE_SH4_202
  380. help
  381. This option is used to specify the peripheral clock frequency.
  382. This is necessary for determining the reference clock value on
  383. platforms lacking an RTC.
  384. config SH_CLK_MD
  385. int "CPU Mode Pin Setting"
  386. depends on CPU_SUBTYPE_SH7619 || CPU_SUBTYPE_SH7206
  387. help
  388. MD2 - MD0 pin setting.
  389. menu "CPU Frequency scaling"
  390. source "drivers/cpufreq/Kconfig"
  391. config SH_CPU_FREQ
  392. tristate "SuperH CPU Frequency driver"
  393. depends on CPU_FREQ
  394. select CPU_FREQ_TABLE
  395. help
  396. This adds the cpufreq driver for SuperH. At present, only
  397. the SH-4 is supported.
  398. For details, take a look at <file:Documentation/cpu-freq>.
  399. If unsure, say N.
  400. endmenu
  401. source "arch/sh/drivers/dma/Kconfig"
  402. source "arch/sh/cchips/Kconfig"
  403. config HEARTBEAT
  404. bool "Heartbeat LED"
  405. depends on SH_MPC1211 || SH_SH03 || \
  406. SH_BIGSUR || SOLUTION_ENGINE || \
  407. SH_RTS7751R2D || SH_SH4202_MICRODEV || SH_LANDISK
  408. help
  409. Use the power-on LED on your machine as a load meter. The exact
  410. behavior is platform-dependent, but normally the flash frequency is
  411. a hyperbolic function of the 5-minute load average.
  412. source "arch/sh/drivers/Kconfig"
  413. endmenu
  414. config ISA_DMA_API
  415. bool
  416. depends on SH_MPC1211
  417. default y
  418. menu "Kernel features"
  419. source kernel/Kconfig.hz
  420. config KEXEC
  421. bool "kexec system call (EXPERIMENTAL)"
  422. depends on EXPERIMENTAL
  423. help
  424. kexec is a system call that implements the ability to shutdown your
  425. current kernel, and to start another kernel. It is like a reboot
  426. but it is independent of the system firmware. And like a reboot
  427. you can start any kernel with it, not just Linux.
  428. The name comes from the similarity to the exec system call.
  429. It is an ongoing process to be certain the hardware in a machine
  430. is properly shutdown, so do not be surprised if this code does not
  431. initially work for you. It may help to enable device hotplugging
  432. support. As of this writing the exact hardware interface is
  433. strongly in flux, so no good recommendation can be made.
  434. config SMP
  435. bool "Symmetric multi-processing support"
  436. ---help---
  437. This enables support for systems with more than one CPU. If you have
  438. a system with only one CPU, like most personal computers, say N. If
  439. you have a system with more than one CPU, say Y.
  440. If you say N here, the kernel will run on single and multiprocessor
  441. machines, but will use only one CPU of a multiprocessor machine. If
  442. you say Y here, the kernel will run on many, but not all,
  443. singleprocessor machines. On a singleprocessor machine, the kernel
  444. will run faster if you say N here.
  445. People using multiprocessor machines who say Y here should also say
  446. Y to "Enhanced Real Time Clock Support", below.
  447. See also the <file:Documentation/smp.txt>,
  448. <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available
  449. at <http://www.tldp.org/docs.html#howto>.
  450. If you don't know what to do here, say N.
  451. config NR_CPUS
  452. int "Maximum number of CPUs (2-32)"
  453. range 2 32
  454. depends on SMP
  455. default "2"
  456. help
  457. This allows you to specify the maximum number of CPUs which this
  458. kernel will support. The maximum supported value is 32 and the
  459. minimum value which makes sense is 2.
  460. This is purely to save memory - each supported CPU adds
  461. approximately eight kilobytes to the kernel image.
  462. source "kernel/Kconfig.preempt"
  463. config NODES_SHIFT
  464. int
  465. default "1"
  466. depends on NEED_MULTIPLE_NODES
  467. endmenu
  468. menu "Boot options"
  469. config ZERO_PAGE_OFFSET
  470. hex "Zero page offset"
  471. default "0x00004000" if SH_MPC1211 || SH_SH03
  472. default "0x00001000"
  473. help
  474. This sets the default offset of zero page.
  475. config BOOT_LINK_OFFSET
  476. hex "Link address offset for booting"
  477. default "0x00800000"
  478. help
  479. This option allows you to set the link address offset of the zImage.
  480. This can be useful if you are on a board which has a small amount of
  481. memory.
  482. config UBC_WAKEUP
  483. bool "Wakeup UBC on startup"
  484. help
  485. Selecting this option will wakeup the User Break Controller (UBC) on
  486. startup. Although the UBC is left in an awake state when the processor
  487. comes up, some boot loaders misbehave by putting the UBC to sleep in a
  488. power saving state, which causes issues with things like ptrace().
  489. If unsure, say N.
  490. config CMDLINE_BOOL
  491. bool "Default bootloader kernel arguments"
  492. config CMDLINE
  493. string "Initial kernel command string"
  494. depends on CMDLINE_BOOL
  495. default "console=ttySC1,115200"
  496. endmenu
  497. menu "Bus options"
  498. # Even on SuperH devices which don't have an ISA bus,
  499. # this variable helps the PCMCIA modules handle
  500. # IRQ requesting properly -- Greg Banks.
  501. #
  502. # Though we're generally not interested in it when
  503. # we're not using PCMCIA, so we make it dependent on
  504. # PCMCIA outright. -- PFM.
  505. config ISA
  506. bool
  507. default y if PCMCIA
  508. help
  509. Find out whether you have ISA slots on your motherboard. ISA is the
  510. name of a bus system, i.e. the way the CPU talks to the other stuff
  511. inside your box. Other bus systems are PCI, EISA, MicroChannel
  512. (MCA) or VESA. ISA is an older system, now being displaced by PCI;
  513. newer boards don't support it. If you have ISA, say Y, otherwise N.
  514. config EISA
  515. bool
  516. ---help---
  517. The Extended Industry Standard Architecture (EISA) bus was
  518. developed as an open alternative to the IBM MicroChannel bus.
  519. The EISA bus provided some of the features of the IBM MicroChannel
  520. bus while maintaining backward compatibility with cards made for
  521. the older ISA bus. The EISA bus saw limited use between 1988 and
  522. 1995 when it was made obsolete by the PCI bus.
  523. Say Y here if you are building a kernel for an EISA-based machine.
  524. Otherwise, say N.
  525. config MCA
  526. bool
  527. help
  528. MicroChannel Architecture is found in some IBM PS/2 machines and
  529. laptops. It is a bus system similar to PCI or ISA. See
  530. <file:Documentation/mca.txt> (and especially the web page given
  531. there) before attempting to build an MCA bus kernel.
  532. config SBUS
  533. bool
  534. config SUPERHYWAY
  535. tristate "SuperHyway Bus support"
  536. depends on CPU_SUBTYPE_SH4_202
  537. source "arch/sh/drivers/pci/Kconfig"
  538. source "drivers/pci/Kconfig"
  539. source "drivers/pcmcia/Kconfig"
  540. source "drivers/pci/hotplug/Kconfig"
  541. endmenu
  542. menu "Executable file formats"
  543. source "fs/Kconfig.binfmt"
  544. endmenu
  545. menu "Power management options (EXPERIMENTAL)"
  546. depends on EXPERIMENTAL
  547. source kernel/power/Kconfig
  548. endmenu
  549. source "net/Kconfig"
  550. source "drivers/Kconfig"
  551. source "fs/Kconfig"
  552. source "arch/sh/oprofile/Kconfig"
  553. source "arch/sh/Kconfig.debug"
  554. source "security/Kconfig"
  555. source "crypto/Kconfig"
  556. source "lib/Kconfig"