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