Kconfig 18 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. def_bool y
  8. select EMBEDDED
  9. select HAVE_CLK
  10. select HAVE_IDE
  11. select HAVE_OPROFILE
  12. select HAVE_GENERIC_DMA_COHERENT
  13. help
  14. The SuperH is a RISC processor targeted for use in embedded systems
  15. and consumer electronics; it was also used in the Sega Dreamcast
  16. gaming console. The SuperH port has a home page at
  17. <http://www.linux-sh.org/>.
  18. config SUPERH32
  19. def_bool !SUPERH64
  20. select HAVE_KPROBES
  21. select HAVE_KRETPROBES
  22. config SUPERH64
  23. def_bool y if CPU_SH5
  24. config ARCH_DEFCONFIG
  25. string
  26. default "arch/sh/configs/shx3_defconfig" if SUPERH32
  27. default "arch/sh/configs/cayman_defconfig" if SUPERH64
  28. config RWSEM_GENERIC_SPINLOCK
  29. def_bool y
  30. config RWSEM_XCHGADD_ALGORITHM
  31. bool
  32. config GENERIC_BUG
  33. def_bool y
  34. depends on BUG && SUPERH32
  35. config GENERIC_FIND_NEXT_BIT
  36. def_bool y
  37. config GENERIC_HWEIGHT
  38. def_bool y
  39. config GENERIC_HARDIRQS
  40. def_bool y
  41. config GENERIC_HARDIRQS_NO__DO_IRQ
  42. def_bool y
  43. config GENERIC_IRQ_PROBE
  44. def_bool y
  45. config GENERIC_CALIBRATE_DELAY
  46. def_bool y
  47. config GENERIC_IOMAP
  48. bool
  49. config GENERIC_TIME
  50. def_bool n
  51. config GENERIC_CLOCKEVENTS
  52. def_bool n
  53. config GENERIC_CLOCKEVENTS_BROADCAST
  54. bool
  55. config GENERIC_LOCKBREAK
  56. def_bool y
  57. depends on SMP && PREEMPT
  58. config SYS_SUPPORTS_PM
  59. bool
  60. config SYS_SUPPORTS_APM_EMULATION
  61. bool
  62. select SYS_SUPPORTS_PM
  63. config SYS_SUPPORTS_SMP
  64. bool
  65. config SYS_SUPPORTS_NUMA
  66. bool
  67. config SYS_SUPPORTS_PCI
  68. bool
  69. config STACKTRACE_SUPPORT
  70. def_bool y
  71. config LOCKDEP_SUPPORT
  72. def_bool y
  73. config ARCH_HAS_ILOG2_U32
  74. def_bool n
  75. config ARCH_HAS_ILOG2_U64
  76. def_bool n
  77. config ARCH_NO_VIRT_TO_BUS
  78. def_bool y
  79. config IO_TRAPPED
  80. bool
  81. source "init/Kconfig"
  82. menu "System type"
  83. #
  84. # Processor families
  85. #
  86. config CPU_SH2
  87. bool
  88. config CPU_SH2A
  89. bool
  90. select CPU_SH2
  91. config CPU_SH3
  92. bool
  93. select CPU_HAS_INTEVT
  94. select CPU_HAS_SR_RB
  95. config CPU_SH4
  96. bool
  97. select CPU_HAS_INTEVT
  98. select CPU_HAS_SR_RB
  99. select CPU_HAS_PTEA if !CPU_SH4A || CPU_SHX2
  100. select CPU_HAS_FPU if !CPU_SH4AL_DSP
  101. config CPU_SH4A
  102. bool
  103. select CPU_SH4
  104. config CPU_SH4AL_DSP
  105. bool
  106. select CPU_SH4A
  107. select CPU_HAS_DSP
  108. config CPU_SH5
  109. bool
  110. select CPU_HAS_FPU
  111. config CPU_SHX2
  112. bool
  113. config CPU_SHX3
  114. bool
  115. choice
  116. prompt "Processor sub-type selection"
  117. #
  118. # Processor subtypes
  119. #
  120. # SH-2 Processor Support
  121. config CPU_SUBTYPE_SH7619
  122. bool "Support SH7619 processor"
  123. select CPU_SH2
  124. # SH-2A Processor Support
  125. config CPU_SUBTYPE_SH7203
  126. bool "Support SH7203 processor"
  127. select CPU_SH2A
  128. select CPU_HAS_FPU
  129. config CPU_SUBTYPE_SH7206
  130. bool "Support SH7206 processor"
  131. select CPU_SH2A
  132. config CPU_SUBTYPE_SH7263
  133. bool "Support SH7263 processor"
  134. select CPU_SH2A
  135. select CPU_HAS_FPU
  136. config CPU_SUBTYPE_MXG
  137. bool "Support MX-G processor"
  138. select CPU_SH2A
  139. help
  140. Select MX-G if running on an R8A03022BG part.
  141. # SH-3 Processor Support
  142. config CPU_SUBTYPE_SH7705
  143. bool "Support SH7705 processor"
  144. select CPU_SH3
  145. config CPU_SUBTYPE_SH7706
  146. bool "Support SH7706 processor"
  147. select CPU_SH3
  148. help
  149. Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU.
  150. config CPU_SUBTYPE_SH7707
  151. bool "Support SH7707 processor"
  152. select CPU_SH3
  153. help
  154. Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU.
  155. config CPU_SUBTYPE_SH7708
  156. bool "Support SH7708 processor"
  157. select CPU_SH3
  158. help
  159. Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or
  160. if you have a 100 Mhz SH-3 HD6417708R CPU.
  161. config CPU_SUBTYPE_SH7709
  162. bool "Support SH7709 processor"
  163. select CPU_SH3
  164. help
  165. Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU.
  166. config CPU_SUBTYPE_SH7710
  167. bool "Support SH7710 processor"
  168. select CPU_SH3
  169. select CPU_HAS_DSP
  170. help
  171. Select SH7710 if you have a SH3-DSP SH7710 CPU.
  172. config CPU_SUBTYPE_SH7712
  173. bool "Support SH7712 processor"
  174. select CPU_SH3
  175. select CPU_HAS_DSP
  176. help
  177. Select SH7712 if you have a SH3-DSP SH7712 CPU.
  178. config CPU_SUBTYPE_SH7720
  179. bool "Support SH7720 processor"
  180. select CPU_SH3
  181. select CPU_HAS_DSP
  182. help
  183. Select SH7720 if you have a SH3-DSP SH7720 CPU.
  184. config CPU_SUBTYPE_SH7721
  185. bool "Support SH7721 processor"
  186. select CPU_SH3
  187. select CPU_HAS_DSP
  188. help
  189. Select SH7721 if you have a SH3-DSP SH7721 CPU.
  190. # SH-4 Processor Support
  191. config CPU_SUBTYPE_SH7750
  192. bool "Support SH7750 processor"
  193. select CPU_SH4
  194. help
  195. Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU.
  196. config CPU_SUBTYPE_SH7091
  197. bool "Support SH7091 processor"
  198. select CPU_SH4
  199. help
  200. Select SH7091 if you have an SH-4 based Sega device (such as
  201. the Dreamcast, Naomi, and Naomi 2).
  202. config CPU_SUBTYPE_SH7750R
  203. bool "Support SH7750R processor"
  204. select CPU_SH4
  205. config CPU_SUBTYPE_SH7750S
  206. bool "Support SH7750S processor"
  207. select CPU_SH4
  208. config CPU_SUBTYPE_SH7751
  209. bool "Support SH7751 processor"
  210. select CPU_SH4
  211. help
  212. Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU,
  213. or if you have a HD6417751R CPU.
  214. config CPU_SUBTYPE_SH7751R
  215. bool "Support SH7751R processor"
  216. select CPU_SH4
  217. config CPU_SUBTYPE_SH7760
  218. bool "Support SH7760 processor"
  219. select CPU_SH4
  220. config CPU_SUBTYPE_SH4_202
  221. bool "Support SH4-202 processor"
  222. select CPU_SH4
  223. # SH-4A Processor Support
  224. config CPU_SUBTYPE_SH7723
  225. bool "Support SH7723 processor"
  226. select CPU_SH4A
  227. select CPU_SHX2
  228. select ARCH_SPARSEMEM_ENABLE
  229. help
  230. Select SH7723 if you have an SH-MobileR2 CPU.
  231. config CPU_SUBTYPE_SH7763
  232. bool "Support SH7763 processor"
  233. select CPU_SH4A
  234. help
  235. Select SH7763 if you have a SH4A SH7763(R5S77631) CPU.
  236. config CPU_SUBTYPE_SH7770
  237. bool "Support SH7770 processor"
  238. select CPU_SH4A
  239. config CPU_SUBTYPE_SH7780
  240. bool "Support SH7780 processor"
  241. select CPU_SH4A
  242. config CPU_SUBTYPE_SH7785
  243. bool "Support SH7785 processor"
  244. select CPU_SH4A
  245. select CPU_SHX2
  246. select ARCH_SPARSEMEM_ENABLE
  247. select SYS_SUPPORTS_NUMA
  248. config CPU_SUBTYPE_SHX3
  249. bool "Support SH-X3 processor"
  250. select CPU_SH4A
  251. select CPU_SHX3
  252. select ARCH_SPARSEMEM_ENABLE
  253. select SYS_SUPPORTS_NUMA
  254. select SYS_SUPPORTS_SMP
  255. select GENERIC_CLOCKEVENTS_BROADCAST if SMP
  256. # SH4AL-DSP Processor Support
  257. config CPU_SUBTYPE_SH7343
  258. bool "Support SH7343 processor"
  259. select CPU_SH4AL_DSP
  260. config CPU_SUBTYPE_SH7722
  261. bool "Support SH7722 processor"
  262. select CPU_SH4AL_DSP
  263. select CPU_SHX2
  264. select ARCH_SPARSEMEM_ENABLE
  265. select SYS_SUPPORTS_NUMA
  266. config CPU_SUBTYPE_SH7366
  267. bool "Support SH7366 processor"
  268. select CPU_SH4AL_DSP
  269. select CPU_SHX2
  270. select ARCH_SPARSEMEM_ENABLE
  271. select SYS_SUPPORTS_NUMA
  272. # SH-5 Processor Support
  273. config CPU_SUBTYPE_SH5_101
  274. bool "Support SH5-101 processor"
  275. select CPU_SH5
  276. config CPU_SUBTYPE_SH5_103
  277. bool "Support SH5-103 processor"
  278. select CPU_SH5
  279. endchoice
  280. source "arch/sh/mm/Kconfig"
  281. source "arch/sh/Kconfig.cpu"
  282. source "arch/sh/boards/Kconfig"
  283. menu "Timer and clock configuration"
  284. config SH_TMU
  285. def_bool y
  286. prompt "TMU timer support"
  287. depends on CPU_SH3 || CPU_SH4
  288. select GENERIC_TIME
  289. select GENERIC_CLOCKEVENTS
  290. help
  291. This enables the use of the TMU as the system timer.
  292. config SH_CMT
  293. def_bool y
  294. prompt "CMT timer support"
  295. depends on CPU_SH2 && !CPU_SUBTYPE_MXG
  296. help
  297. This enables the use of the CMT as the system timer.
  298. config SH_MTU2
  299. def_bool n
  300. prompt "MTU2 timer support"
  301. depends on CPU_SH2A
  302. help
  303. This enables the use of the MTU2 as the system timer.
  304. config SH_TIMER_IRQ
  305. int
  306. default "28" if CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785 || \
  307. CPU_SUBTYPE_SH7763
  308. default "86" if CPU_SUBTYPE_SH7619
  309. default "140" if CPU_SUBTYPE_SH7206
  310. default "142" if CPU_SUBTYPE_SH7203
  311. default "238" if CPU_SUBTYPE_MXG
  312. default "16"
  313. config SH_PCLK_FREQ
  314. int "Peripheral clock frequency (in Hz)"
  315. default "27000000" if CPU_SUBTYPE_SH7343
  316. default "31250000" if CPU_SUBTYPE_SH7619
  317. default "32000000" if CPU_SUBTYPE_SH7722
  318. default "33333333" if CPU_SUBTYPE_SH7770 || CPU_SUBTYPE_SH7723 || \
  319. CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \
  320. CPU_SUBTYPE_SH7203 || CPU_SUBTYPE_SH7206 || \
  321. CPU_SUBTYPE_SH7263 || CPU_SUBTYPE_MXG
  322. default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
  323. default "66000000" if CPU_SUBTYPE_SH4_202
  324. default "50000000"
  325. help
  326. This option is used to specify the peripheral clock frequency.
  327. This is necessary for determining the reference clock value on
  328. platforms lacking an RTC.
  329. config SH_CLK_MD
  330. int "CPU Mode Pin Setting"
  331. depends on CPU_SH2
  332. default 6 if CPU_SUBTYPE_SH7206
  333. default 5 if CPU_SUBTYPE_SH7619
  334. default 0
  335. help
  336. MD2 - MD0 pin setting.
  337. source "kernel/time/Kconfig"
  338. endmenu
  339. menu "CPU Frequency scaling"
  340. source "drivers/cpufreq/Kconfig"
  341. config SH_CPU_FREQ
  342. tristate "SuperH CPU Frequency driver"
  343. depends on CPU_FREQ
  344. select CPU_FREQ_TABLE
  345. help
  346. This adds the cpufreq driver for SuperH. At present, only
  347. the SH-4 is supported.
  348. For details, take a look at <file:Documentation/cpu-freq>.
  349. If unsure, say N.
  350. endmenu
  351. source "arch/sh/drivers/Kconfig"
  352. endmenu
  353. config ISA_DMA_API
  354. bool
  355. menu "Kernel features"
  356. source kernel/Kconfig.hz
  357. config KEXEC
  358. bool "kexec system call (EXPERIMENTAL)"
  359. depends on SUPERH32 && EXPERIMENTAL
  360. help
  361. kexec is a system call that implements the ability to shutdown your
  362. current kernel, and to start another kernel. It is like a reboot
  363. but it is independent of the system firmware. And like a reboot
  364. you can start any kernel with it, not just Linux.
  365. The name comes from the similarity to the exec system call.
  366. It is an ongoing process to be certain the hardware in a machine
  367. is properly shutdown, so do not be surprised if this code does not
  368. initially work for you. It may help to enable device hotplugging
  369. support. As of this writing the exact hardware interface is
  370. strongly in flux, so no good recommendation can be made.
  371. config CRASH_DUMP
  372. bool "kernel crash dumps (EXPERIMENTAL)"
  373. depends on SUPERH32 && EXPERIMENTAL
  374. help
  375. Generate crash dump after being started by kexec.
  376. This should be normally only set in special crash dump kernels
  377. which are loaded in the main kernel with kexec-tools into
  378. a specially reserved region and then later executed after
  379. a crash by kdump/kexec. The crash dump kernel must be compiled
  380. to a memory address not used by the main kernel using
  381. MEMORY_START.
  382. For more details see Documentation/kdump/kdump.txt
  383. config SECCOMP
  384. bool "Enable seccomp to safely compute untrusted bytecode"
  385. depends on PROC_FS
  386. default y
  387. help
  388. This kernel feature is useful for number crunching applications
  389. that may need to compute untrusted bytecode during their
  390. execution. By using pipes or other transports made available to
  391. the process as file descriptors supporting the read/write
  392. syscalls, it's possible to isolate those applications in
  393. their own address space using seccomp. Once seccomp is
  394. enabled via prctl, it cannot be disabled and the task is only
  395. allowed to execute a few safe syscalls defined by each seccomp
  396. mode.
  397. If unsure, say N.
  398. config SMP
  399. bool "Symmetric multi-processing support"
  400. depends on SYS_SUPPORTS_SMP
  401. select USE_GENERIC_SMP_HELPERS
  402. ---help---
  403. This enables support for systems with more than one CPU. If you have
  404. a system with only one CPU, like most personal computers, say N. If
  405. you have a system with more than one CPU, say Y.
  406. If you say N here, the kernel will run on single and multiprocessor
  407. machines, but will use only one CPU of a multiprocessor machine. If
  408. you say Y here, the kernel will run on many, but not all,
  409. singleprocessor machines. On a singleprocessor machine, the kernel
  410. will run faster if you say N here.
  411. People using multiprocessor machines who say Y here should also say
  412. Y to "Enhanced Real Time Clock Support", below.
  413. See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
  414. available at <http://www.tldp.org/docs.html#howto>.
  415. If you don't know what to do here, say N.
  416. config NR_CPUS
  417. int "Maximum number of CPUs (2-32)"
  418. range 2 32
  419. depends on SMP
  420. default "4" if CPU_SHX3
  421. default "2"
  422. help
  423. This allows you to specify the maximum number of CPUs which this
  424. kernel will support. The maximum supported value is 32 and the
  425. minimum value which makes sense is 2.
  426. This is purely to save memory - each supported CPU adds
  427. approximately eight kilobytes to the kernel image.
  428. source "kernel/Kconfig.preempt"
  429. config GUSA
  430. def_bool y
  431. depends on !SMP && SUPERH32
  432. help
  433. This enables support for gUSA (general UserSpace Atomicity).
  434. This is the default implementation for both UP and non-ll/sc
  435. CPUs, and is used by the libc, amongst others.
  436. For additional information, design information can be found
  437. in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>.
  438. This should only be disabled for special cases where alternate
  439. atomicity implementations exist.
  440. config GUSA_RB
  441. bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)"
  442. depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A)
  443. help
  444. Enabling this option will allow the kernel to implement some
  445. atomic operations using a software implemention of load-locked/
  446. store-conditional (LLSC). On machines which do not have hardware
  447. LLSC, this should be more efficient than the other alternative of
  448. disabling insterrupts around the atomic sequence.
  449. endmenu
  450. menu "Boot options"
  451. config ZERO_PAGE_OFFSET
  452. hex "Zero page offset"
  453. default "0x00004000" if SH_SH03
  454. default "0x00010000" if PAGE_SIZE_64KB
  455. default "0x00002000" if PAGE_SIZE_8KB
  456. default "0x00001000"
  457. help
  458. This sets the default offset of zero page.
  459. config BOOT_LINK_OFFSET
  460. hex "Link address offset for booting"
  461. default "0x00800000"
  462. help
  463. This option allows you to set the link address offset of the zImage.
  464. This can be useful if you are on a board which has a small amount of
  465. memory.
  466. config UBC_WAKEUP
  467. bool "Wakeup UBC on startup"
  468. depends on CPU_SH4 && !CPU_SH4A
  469. help
  470. Selecting this option will wakeup the User Break Controller (UBC) on
  471. startup. Although the UBC is left in an awake state when the processor
  472. comes up, some boot loaders misbehave by putting the UBC to sleep in a
  473. power saving state, which causes issues with things like ptrace().
  474. If unsure, say N.
  475. config CMDLINE_BOOL
  476. bool "Default bootloader kernel arguments"
  477. config CMDLINE
  478. string "Initial kernel command string"
  479. depends on CMDLINE_BOOL
  480. default "console=ttySC1,115200"
  481. endmenu
  482. menu "Bus options"
  483. # Even on SuperH devices which don't have an ISA bus,
  484. # this variable helps the PCMCIA modules handle
  485. # IRQ requesting properly -- Greg Banks.
  486. #
  487. # Though we're generally not interested in it when
  488. # we're not using PCMCIA, so we make it dependent on
  489. # PCMCIA outright. -- PFM.
  490. config ISA
  491. def_bool y
  492. depends on PCMCIA && HD6446X_SERIES
  493. help
  494. Find out whether you have ISA slots on your motherboard. ISA is the
  495. name of a bus system, i.e. the way the CPU talks to the other stuff
  496. inside your box. Other bus systems are PCI, EISA, MicroChannel
  497. (MCA) or VESA. ISA is an older system, now being displaced by PCI;
  498. newer boards don't support it. If you have ISA, say Y, otherwise N.
  499. config EISA
  500. bool
  501. ---help---
  502. The Extended Industry Standard Architecture (EISA) bus was
  503. developed as an open alternative to the IBM MicroChannel bus.
  504. The EISA bus provided some of the features of the IBM MicroChannel
  505. bus while maintaining backward compatibility with cards made for
  506. the older ISA bus. The EISA bus saw limited use between 1988 and
  507. 1995 when it was made obsolete by the PCI bus.
  508. Say Y here if you are building a kernel for an EISA-based machine.
  509. Otherwise, say N.
  510. config MCA
  511. bool
  512. help
  513. MicroChannel Architecture is found in some IBM PS/2 machines and
  514. laptops. It is a bus system similar to PCI or ISA. See
  515. <file:Documentation/mca.txt> (and especially the web page given
  516. there) before attempting to build an MCA bus kernel.
  517. config SBUS
  518. bool
  519. config SUPERHYWAY
  520. tristate "SuperHyway Bus support"
  521. depends on CPU_SUBTYPE_SH4_202
  522. config MAPLE
  523. bool "Maple Bus support"
  524. depends on SH_DREAMCAST
  525. help
  526. The Maple Bus is SEGA's serial communication bus for peripherals
  527. on the Dreamcast. Without this bus support you won't be able to
  528. get your Dreamcast keyboard etc to work, so most users
  529. probably want to say 'Y' here, unless you are only using the
  530. Dreamcast with a serial line terminal or a remote network
  531. connection.
  532. config CF_ENABLER
  533. bool "Compact Flash Enabler support"
  534. depends on SOLUTION_ENGINE || SH_SH03
  535. ---help---
  536. Compact Flash is a small, removable mass storage device introduced
  537. in 1994 originally as a PCMCIA device. If you say `Y' here, you
  538. compile in support for Compact Flash devices directly connected to
  539. a SuperH processor. A Compact Flash FAQ is available at
  540. <http://www.compactflash.org/faqs/faq.htm>.
  541. If your board has "Directly Connected" CompactFlash at area 5 or 6,
  542. you may want to enable this option. Then, you can use CF as
  543. primary IDE drive (only tested for SanDisk).
  544. If in doubt, select 'N'.
  545. choice
  546. prompt "Compact Flash Connection Area"
  547. depends on CF_ENABLER
  548. default CF_AREA6
  549. config CF_AREA5
  550. bool "Area5"
  551. help
  552. If your board has "Directly Connected" CompactFlash, You should
  553. select the area where your CF is connected to.
  554. - "Area5" if CompactFlash is connected to Area 5 (0x14000000)
  555. - "Area6" if it is connected to Area 6 (0x18000000)
  556. "Area6" will work for most boards.
  557. config CF_AREA6
  558. bool "Area6"
  559. endchoice
  560. config CF_BASE_ADDR
  561. hex
  562. depends on CF_ENABLER
  563. default "0xb8000000" if CF_AREA6
  564. default "0xb4000000" if CF_AREA5
  565. source "arch/sh/drivers/pci/Kconfig"
  566. source "drivers/pci/Kconfig"
  567. source "drivers/pcmcia/Kconfig"
  568. source "drivers/pci/hotplug/Kconfig"
  569. endmenu
  570. menu "Executable file formats"
  571. source "fs/Kconfig.binfmt"
  572. endmenu
  573. menu "Power management options (EXPERIMENTAL)"
  574. depends on EXPERIMENTAL && SYS_SUPPORTS_PM
  575. config ARCH_SUSPEND_POSSIBLE
  576. def_bool y
  577. depends on !SMP
  578. source kernel/power/Kconfig
  579. endmenu
  580. source "net/Kconfig"
  581. source "drivers/Kconfig"
  582. source "fs/Kconfig"
  583. source "arch/sh/Kconfig.debug"
  584. source "security/Kconfig"
  585. source "crypto/Kconfig"
  586. source "lib/Kconfig"