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. 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. select HAVE_IOREMAP_PROT if MMU
  14. select HAVE_ARCH_TRACEHOOK
  15. select HAVE_DMA_API_DEBUG
  16. help
  17. The SuperH is a RISC processor targeted for use in embedded systems
  18. and consumer electronics; it was also used in the Sega Dreamcast
  19. gaming console. The SuperH port has a home page at
  20. <http://www.linux-sh.org/>.
  21. config SUPERH32
  22. def_bool !SUPERH64
  23. select HAVE_KPROBES
  24. select HAVE_KRETPROBES
  25. select HAVE_FUNCTION_TRACER
  26. select HAVE_FTRACE_MCOUNT_RECORD
  27. select HAVE_DYNAMIC_FTRACE
  28. select HAVE_ARCH_KGDB
  29. select ARCH_HIBERNATION_POSSIBLE if MMU
  30. config SUPERH64
  31. def_bool y if CPU_SH5
  32. config ARCH_DEFCONFIG
  33. string
  34. default "arch/sh/configs/shx3_defconfig" if SUPERH32
  35. default "arch/sh/configs/cayman_defconfig" if SUPERH64
  36. config RWSEM_GENERIC_SPINLOCK
  37. def_bool y
  38. config RWSEM_XCHGADD_ALGORITHM
  39. bool
  40. config GENERIC_BUG
  41. def_bool y
  42. depends on BUG && SUPERH32
  43. config GENERIC_FIND_NEXT_BIT
  44. def_bool y
  45. config GENERIC_HWEIGHT
  46. def_bool y
  47. config GENERIC_HARDIRQS
  48. def_bool y
  49. config GENERIC_HARDIRQS_NO__DO_IRQ
  50. def_bool y
  51. config GENERIC_IRQ_PROBE
  52. def_bool y
  53. config GENERIC_GPIO
  54. def_bool n
  55. config GENERIC_CALIBRATE_DELAY
  56. bool
  57. config GENERIC_IOMAP
  58. bool
  59. config GENERIC_TIME
  60. def_bool n
  61. config GENERIC_CLOCKEVENTS
  62. def_bool n
  63. config GENERIC_CLOCKEVENTS_BROADCAST
  64. bool
  65. config GENERIC_LOCKBREAK
  66. def_bool y
  67. depends on SMP && PREEMPT
  68. config SYS_SUPPORTS_PM
  69. bool
  70. depends on !SMP
  71. config ARCH_SUSPEND_POSSIBLE
  72. def_bool n
  73. config ARCH_HIBERNATION_POSSIBLE
  74. def_bool n
  75. config SYS_SUPPORTS_APM_EMULATION
  76. bool
  77. select ARCH_SUSPEND_POSSIBLE
  78. config SYS_SUPPORTS_SMP
  79. bool
  80. config SYS_SUPPORTS_NUMA
  81. bool
  82. config SYS_SUPPORTS_PCI
  83. bool
  84. config SYS_SUPPORTS_CMT
  85. bool
  86. config STACKTRACE_SUPPORT
  87. def_bool y
  88. config LOCKDEP_SUPPORT
  89. def_bool y
  90. config HAVE_LATENCYTOP_SUPPORT
  91. def_bool y
  92. depends on !SMP
  93. config ARCH_HAS_ILOG2_U32
  94. def_bool n
  95. config ARCH_HAS_ILOG2_U64
  96. def_bool n
  97. config ARCH_NO_VIRT_TO_BUS
  98. def_bool y
  99. config ARCH_HAS_DEFAULT_IDLE
  100. def_bool y
  101. config IO_TRAPPED
  102. bool
  103. source "init/Kconfig"
  104. source "kernel/Kconfig.freezer"
  105. menu "System type"
  106. #
  107. # Processor families
  108. #
  109. config CPU_SH2
  110. bool
  111. config CPU_SH2A
  112. bool
  113. select CPU_SH2
  114. config CPU_SH3
  115. bool
  116. select CPU_HAS_INTEVT
  117. select CPU_HAS_SR_RB
  118. config CPU_SH4
  119. bool
  120. select CPU_HAS_INTEVT
  121. select CPU_HAS_SR_RB
  122. select CPU_HAS_PTEA if !CPU_SH4A || CPU_SHX2
  123. select CPU_HAS_FPU if !CPU_SH4AL_DSP
  124. config CPU_SH4A
  125. bool
  126. select CPU_SH4
  127. config CPU_SH4AL_DSP
  128. bool
  129. select CPU_SH4A
  130. select CPU_HAS_DSP
  131. config CPU_SH5
  132. bool
  133. select CPU_HAS_FPU
  134. config CPU_SHX2
  135. bool
  136. config CPU_SHX3
  137. bool
  138. config ARCH_SHMOBILE
  139. bool
  140. select ARCH_SUSPEND_POSSIBLE
  141. choice
  142. prompt "Processor sub-type selection"
  143. #
  144. # Processor subtypes
  145. #
  146. # SH-2 Processor Support
  147. config CPU_SUBTYPE_SH7619
  148. bool "Support SH7619 processor"
  149. select CPU_SH2
  150. select SYS_SUPPORTS_CMT
  151. # SH-2A Processor Support
  152. config CPU_SUBTYPE_SH7201
  153. bool "Support SH7201 processor"
  154. select CPU_SH2A
  155. select CPU_HAS_FPU
  156. config CPU_SUBTYPE_SH7203
  157. bool "Support SH7203 processor"
  158. select CPU_SH2A
  159. select CPU_HAS_FPU
  160. select SYS_SUPPORTS_CMT
  161. config CPU_SUBTYPE_SH7206
  162. bool "Support SH7206 processor"
  163. select CPU_SH2A
  164. select SYS_SUPPORTS_CMT
  165. config CPU_SUBTYPE_SH7263
  166. bool "Support SH7263 processor"
  167. select CPU_SH2A
  168. select CPU_HAS_FPU
  169. select SYS_SUPPORTS_CMT
  170. config CPU_SUBTYPE_MXG
  171. bool "Support MX-G processor"
  172. select CPU_SH2A
  173. help
  174. Select MX-G if running on an R8A03022BG part.
  175. # SH-3 Processor Support
  176. config CPU_SUBTYPE_SH7705
  177. bool "Support SH7705 processor"
  178. select CPU_SH3
  179. config CPU_SUBTYPE_SH7706
  180. bool "Support SH7706 processor"
  181. select CPU_SH3
  182. help
  183. Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU.
  184. config CPU_SUBTYPE_SH7707
  185. bool "Support SH7707 processor"
  186. select CPU_SH3
  187. help
  188. Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU.
  189. config CPU_SUBTYPE_SH7708
  190. bool "Support SH7708 processor"
  191. select CPU_SH3
  192. help
  193. Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or
  194. if you have a 100 Mhz SH-3 HD6417708R CPU.
  195. config CPU_SUBTYPE_SH7709
  196. bool "Support SH7709 processor"
  197. select CPU_SH3
  198. help
  199. Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU.
  200. config CPU_SUBTYPE_SH7710
  201. bool "Support SH7710 processor"
  202. select CPU_SH3
  203. select CPU_HAS_DSP
  204. help
  205. Select SH7710 if you have a SH3-DSP SH7710 CPU.
  206. config CPU_SUBTYPE_SH7712
  207. bool "Support SH7712 processor"
  208. select CPU_SH3
  209. select CPU_HAS_DSP
  210. help
  211. Select SH7712 if you have a SH3-DSP SH7712 CPU.
  212. config CPU_SUBTYPE_SH7720
  213. bool "Support SH7720 processor"
  214. select CPU_SH3
  215. select CPU_HAS_DSP
  216. help
  217. Select SH7720 if you have a SH3-DSP SH7720 CPU.
  218. config CPU_SUBTYPE_SH7721
  219. bool "Support SH7721 processor"
  220. select CPU_SH3
  221. select CPU_HAS_DSP
  222. help
  223. Select SH7721 if you have a SH3-DSP SH7721 CPU.
  224. # SH-4 Processor Support
  225. config CPU_SUBTYPE_SH7750
  226. bool "Support SH7750 processor"
  227. select CPU_SH4
  228. help
  229. Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU.
  230. config CPU_SUBTYPE_SH7091
  231. bool "Support SH7091 processor"
  232. select CPU_SH4
  233. help
  234. Select SH7091 if you have an SH-4 based Sega device (such as
  235. the Dreamcast, Naomi, and Naomi 2).
  236. config CPU_SUBTYPE_SH7750R
  237. bool "Support SH7750R processor"
  238. select CPU_SH4
  239. config CPU_SUBTYPE_SH7750S
  240. bool "Support SH7750S processor"
  241. select CPU_SH4
  242. config CPU_SUBTYPE_SH7751
  243. bool "Support SH7751 processor"
  244. select CPU_SH4
  245. help
  246. Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU,
  247. or if you have a HD6417751R CPU.
  248. config CPU_SUBTYPE_SH7751R
  249. bool "Support SH7751R processor"
  250. select CPU_SH4
  251. config CPU_SUBTYPE_SH7760
  252. bool "Support SH7760 processor"
  253. select CPU_SH4
  254. config CPU_SUBTYPE_SH4_202
  255. bool "Support SH4-202 processor"
  256. select CPU_SH4
  257. # SH-4A Processor Support
  258. config CPU_SUBTYPE_SH7723
  259. bool "Support SH7723 processor"
  260. select CPU_SH4A
  261. select CPU_SHX2
  262. select ARCH_SHMOBILE
  263. select ARCH_SPARSEMEM_ENABLE
  264. select SYS_SUPPORTS_CMT
  265. help
  266. Select SH7723 if you have an SH-MobileR2 CPU.
  267. config CPU_SUBTYPE_SH7763
  268. bool "Support SH7763 processor"
  269. select CPU_SH4A
  270. help
  271. Select SH7763 if you have a SH4A SH7763(R5S77631) CPU.
  272. config CPU_SUBTYPE_SH7770
  273. bool "Support SH7770 processor"
  274. select CPU_SH4A
  275. config CPU_SUBTYPE_SH7780
  276. bool "Support SH7780 processor"
  277. select CPU_SH4A
  278. config CPU_SUBTYPE_SH7785
  279. bool "Support SH7785 processor"
  280. select CPU_SH4A
  281. select CPU_SHX2
  282. select ARCH_SPARSEMEM_ENABLE
  283. select SYS_SUPPORTS_NUMA
  284. config CPU_SUBTYPE_SH7786
  285. bool "Support SH7786 processor"
  286. select CPU_SH4A
  287. select CPU_SHX3
  288. select CPU_HAS_PTEAEX
  289. select ARCH_SPARSEMEM_ENABLE
  290. select SYS_SUPPORTS_NUMA
  291. config CPU_SUBTYPE_SHX3
  292. bool "Support SH-X3 processor"
  293. select CPU_SH4A
  294. select CPU_SHX3
  295. select ARCH_SPARSEMEM_ENABLE
  296. select SYS_SUPPORTS_NUMA
  297. select SYS_SUPPORTS_SMP
  298. select GENERIC_CLOCKEVENTS_BROADCAST if SMP
  299. # SH4AL-DSP Processor Support
  300. config CPU_SUBTYPE_SH7343
  301. bool "Support SH7343 processor"
  302. select CPU_SH4AL_DSP
  303. select ARCH_SHMOBILE
  304. select SYS_SUPPORTS_CMT
  305. config CPU_SUBTYPE_SH7722
  306. bool "Support SH7722 processor"
  307. select CPU_SH4AL_DSP
  308. select CPU_SHX2
  309. select ARCH_SHMOBILE
  310. select ARCH_SPARSEMEM_ENABLE
  311. select SYS_SUPPORTS_NUMA
  312. select SYS_SUPPORTS_CMT
  313. config CPU_SUBTYPE_SH7366
  314. bool "Support SH7366 processor"
  315. select CPU_SH4AL_DSP
  316. select CPU_SHX2
  317. select ARCH_SHMOBILE
  318. select ARCH_SPARSEMEM_ENABLE
  319. select SYS_SUPPORTS_NUMA
  320. select SYS_SUPPORTS_CMT
  321. # SH-5 Processor Support
  322. config CPU_SUBTYPE_SH5_101
  323. bool "Support SH5-101 processor"
  324. select CPU_SH5
  325. config CPU_SUBTYPE_SH5_103
  326. bool "Support SH5-103 processor"
  327. select CPU_SH5
  328. endchoice
  329. source "arch/sh/mm/Kconfig"
  330. source "arch/sh/Kconfig.cpu"
  331. source "arch/sh/boards/Kconfig"
  332. menu "Timer and clock configuration"
  333. config SH_TMU
  334. bool "TMU timer support"
  335. depends on CPU_SH3 || CPU_SH4
  336. default y
  337. select GENERIC_TIME
  338. select GENERIC_CLOCKEVENTS
  339. help
  340. This enables the use of the TMU as the system timer.
  341. config SH_CMT
  342. bool "CMT timer support"
  343. depends on SYS_SUPPORTS_CMT && CPU_SH2
  344. default y
  345. help
  346. This enables the use of the CMT as the system timer.
  347. #
  348. # Support for the new-style CMT driver. This will replace SH_CMT
  349. # once its other dependencies are merged.
  350. #
  351. config SH_TIMER_CMT
  352. bool "CMT clockevents driver"
  353. depends on SYS_SUPPORTS_CMT && !SH_CMT
  354. select GENERIC_CLOCKEVENTS
  355. config SH_MTU2
  356. bool "MTU2 timer support"
  357. depends on CPU_SH2A
  358. default y
  359. help
  360. This enables the use of the MTU2 as the system timer.
  361. config SH_TIMER_IRQ
  362. int
  363. default "28" if CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785 || \
  364. CPU_SUBTYPE_SH7763
  365. default "86" if CPU_SUBTYPE_SH7619
  366. default "140" if CPU_SUBTYPE_SH7206
  367. default "142" if CPU_SUBTYPE_SH7203 && SH_CMT
  368. default "153" if CPU_SUBTYPE_SH7203 && SH_MTU2
  369. default "238" if CPU_SUBTYPE_MXG
  370. default "16"
  371. config SH_PCLK_FREQ
  372. int "Peripheral clock frequency (in Hz)"
  373. default "27000000" if CPU_SUBTYPE_SH7343
  374. default "31250000" if CPU_SUBTYPE_SH7619
  375. default "32000000" if CPU_SUBTYPE_SH7722
  376. default "33333333" if CPU_SUBTYPE_SH7770 || CPU_SUBTYPE_SH7723 || \
  377. CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \
  378. CPU_SUBTYPE_SH7203 || CPU_SUBTYPE_SH7206 || \
  379. CPU_SUBTYPE_SH7263 || CPU_SUBTYPE_MXG || \
  380. CPU_SUBTYPE_SH7786
  381. default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
  382. default "66000000" if CPU_SUBTYPE_SH4_202
  383. default "50000000"
  384. help
  385. This option is used to specify the peripheral clock frequency.
  386. This is necessary for determining the reference clock value on
  387. platforms lacking an RTC.
  388. config SH_CLK_MD
  389. int "CPU Mode Pin Setting"
  390. depends on CPU_SH2
  391. default 6 if CPU_SUBTYPE_SH7206
  392. default 5 if CPU_SUBTYPE_SH7619
  393. default 0
  394. help
  395. MD2 - MD0 pin setting.
  396. source "kernel/time/Kconfig"
  397. endmenu
  398. menu "CPU Frequency scaling"
  399. source "drivers/cpufreq/Kconfig"
  400. config SH_CPU_FREQ
  401. tristate "SuperH CPU Frequency driver"
  402. depends on CPU_FREQ
  403. select CPU_FREQ_TABLE
  404. help
  405. This adds the cpufreq driver for SuperH. Any CPU that supports
  406. clock rate rounding through the clock framework can use this
  407. driver. While it will make the kernel slightly larger, this is
  408. harmless for CPUs that don't support rate rounding. The driver
  409. will also generate a notice in the boot log before disabling
  410. itself if the CPU in question is not capable of rate rounding.
  411. For details, take a look at <file:Documentation/cpu-freq>.
  412. If unsure, say N.
  413. endmenu
  414. source "arch/sh/drivers/Kconfig"
  415. endmenu
  416. menu "Kernel features"
  417. source kernel/Kconfig.hz
  418. config KEXEC
  419. bool "kexec system call (EXPERIMENTAL)"
  420. depends on SUPERH32 && EXPERIMENTAL && MMU
  421. help
  422. kexec is a system call that implements the ability to shutdown your
  423. current kernel, and to start another kernel. It is like a reboot
  424. but it is independent of the system firmware. And like a reboot
  425. you can start any kernel with it, not just Linux.
  426. The name comes from the similarity to the exec system call.
  427. It is an ongoing process to be certain the hardware in a machine
  428. is properly shutdown, so do not be surprised if this code does not
  429. initially work for you. It may help to enable device hotplugging
  430. support. As of this writing the exact hardware interface is
  431. strongly in flux, so no good recommendation can be made.
  432. config CRASH_DUMP
  433. bool "kernel crash dumps (EXPERIMENTAL)"
  434. depends on SUPERH32 && EXPERIMENTAL
  435. help
  436. Generate crash dump after being started by kexec.
  437. This should be normally only set in special crash dump kernels
  438. which are loaded in the main kernel with kexec-tools into
  439. a specially reserved region and then later executed after
  440. a crash by kdump/kexec. The crash dump kernel must be compiled
  441. to a memory address not used by the main kernel using
  442. MEMORY_START.
  443. For more details see Documentation/kdump/kdump.txt
  444. config KEXEC_JUMP
  445. bool "kexec jump (EXPERIMENTAL)"
  446. depends on SUPERH32 && KEXEC && HIBERNATION && EXPERIMENTAL
  447. help
  448. Jump between original kernel and kexeced kernel and invoke
  449. code via KEXEC
  450. config SECCOMP
  451. bool "Enable seccomp to safely compute untrusted bytecode"
  452. depends on PROC_FS
  453. help
  454. This kernel feature is useful for number crunching applications
  455. that may need to compute untrusted bytecode during their
  456. execution. By using pipes or other transports made available to
  457. the process as file descriptors supporting the read/write
  458. syscalls, it's possible to isolate those applications in
  459. their own address space using seccomp. Once seccomp is
  460. enabled via prctl, it cannot be disabled and the task is only
  461. allowed to execute a few safe syscalls defined by each seccomp
  462. mode.
  463. If unsure, say N.
  464. config SMP
  465. bool "Symmetric multi-processing support"
  466. depends on SYS_SUPPORTS_SMP
  467. select USE_GENERIC_SMP_HELPERS
  468. ---help---
  469. This enables support for systems with more than one CPU. If you have
  470. a system with only one CPU, like most personal computers, say N. If
  471. you have a system with more than one CPU, say Y.
  472. If you say N here, the kernel will run on single and multiprocessor
  473. machines, but will use only one CPU of a multiprocessor machine. If
  474. you say Y here, the kernel will run on many, but not all,
  475. singleprocessor machines. On a singleprocessor machine, the kernel
  476. will run faster if you say N here.
  477. People using multiprocessor machines who say Y here should also say
  478. Y to "Enhanced Real Time Clock Support", below.
  479. See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
  480. available at <http://www.tldp.org/docs.html#howto>.
  481. If you don't know what to do here, say N.
  482. config NR_CPUS
  483. int "Maximum number of CPUs (2-32)"
  484. range 2 32
  485. depends on SMP
  486. default "4" if CPU_SHX3
  487. default "2"
  488. help
  489. This allows you to specify the maximum number of CPUs which this
  490. kernel will support. The maximum supported value is 32 and the
  491. minimum value which makes sense is 2.
  492. This is purely to save memory - each supported CPU adds
  493. approximately eight kilobytes to the kernel image.
  494. source "kernel/Kconfig.preempt"
  495. config GUSA
  496. def_bool y
  497. depends on !SMP && SUPERH32
  498. help
  499. This enables support for gUSA (general UserSpace Atomicity).
  500. This is the default implementation for both UP and non-ll/sc
  501. CPUs, and is used by the libc, amongst others.
  502. For additional information, design information can be found
  503. in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>.
  504. This should only be disabled for special cases where alternate
  505. atomicity implementations exist.
  506. config GUSA_RB
  507. bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)"
  508. depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A)
  509. help
  510. Enabling this option will allow the kernel to implement some
  511. atomic operations using a software implementation of load-locked/
  512. store-conditional (LLSC). On machines which do not have hardware
  513. LLSC, this should be more efficient than the other alternative of
  514. disabling interrupts around the atomic sequence.
  515. endmenu
  516. menu "Boot options"
  517. config ZERO_PAGE_OFFSET
  518. hex "Zero page offset"
  519. default "0x00004000" if SH_SH03
  520. default "0x00010000" if PAGE_SIZE_64KB
  521. default "0x00002000" if PAGE_SIZE_8KB
  522. default "0x00001000"
  523. help
  524. This sets the default offset of zero page.
  525. config BOOT_LINK_OFFSET
  526. hex "Link address offset for booting"
  527. default "0x00800000"
  528. help
  529. This option allows you to set the link address offset of the zImage.
  530. This can be useful if you are on a board which has a small amount of
  531. memory.
  532. config UBC_WAKEUP
  533. bool "Wakeup UBC on startup"
  534. depends on CPU_SH4 && !CPU_SH4A
  535. help
  536. Selecting this option will wakeup the User Break Controller (UBC) on
  537. startup. Although the UBC is left in an awake state when the processor
  538. comes up, some boot loaders misbehave by putting the UBC to sleep in a
  539. power saving state, which causes issues with things like ptrace().
  540. If unsure, say N.
  541. config CMDLINE_BOOL
  542. bool "Default bootloader kernel arguments"
  543. config CMDLINE
  544. string "Initial kernel command string"
  545. depends on CMDLINE_BOOL
  546. default "console=ttySC1,115200"
  547. endmenu
  548. menu "Bus options"
  549. config SUPERHYWAY
  550. tristate "SuperHyway Bus support"
  551. depends on CPU_SUBTYPE_SH4_202
  552. config MAPLE
  553. bool "Maple Bus support"
  554. depends on SH_DREAMCAST
  555. help
  556. The Maple Bus is SEGA's serial communication bus for peripherals
  557. on the Dreamcast. Without this bus support you won't be able to
  558. get your Dreamcast keyboard etc to work, so most users
  559. probably want to say 'Y' here, unless you are only using the
  560. Dreamcast with a serial line terminal or a remote network
  561. connection.
  562. source "arch/sh/drivers/pci/Kconfig"
  563. source "drivers/pci/pcie/Kconfig"
  564. source "drivers/pci/Kconfig"
  565. source "drivers/pcmcia/Kconfig"
  566. source "drivers/pci/hotplug/Kconfig"
  567. endmenu
  568. menu "Executable file formats"
  569. source "fs/Kconfig.binfmt"
  570. endmenu
  571. menu "Power management options (EXPERIMENTAL)"
  572. depends on EXPERIMENTAL
  573. source "kernel/power/Kconfig"
  574. source "drivers/cpuidle/Kconfig"
  575. endmenu
  576. source "net/Kconfig"
  577. source "drivers/Kconfig"
  578. source "fs/Kconfig"
  579. source "arch/sh/Kconfig.debug"
  580. source "security/Kconfig"
  581. source "crypto/Kconfig"
  582. source "lib/Kconfig"