Kconfig 21 KB

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  1. config SUPERH
  2. def_bool y
  3. select EXPERT
  4. select CLKDEV_LOOKUP
  5. select HAVE_IDE if HAS_IOPORT
  6. select HAVE_MEMBLOCK
  7. select HAVE_MEMBLOCK_NODE_MAP
  8. select ARCH_DISCARD_MEMBLOCK
  9. select HAVE_OPROFILE
  10. select HAVE_GENERIC_DMA_COHERENT
  11. select HAVE_ARCH_TRACEHOOK
  12. select HAVE_DMA_API_DEBUG
  13. select HAVE_DMA_ATTRS
  14. select HAVE_IRQ_WORK
  15. select HAVE_PERF_EVENTS
  16. select ARCH_HAVE_NMI_SAFE_CMPXCHG if (GUSA_RB || CPU_SH4A)
  17. select PERF_USE_VMALLOC
  18. select HAVE_KERNEL_GZIP
  19. select HAVE_KERNEL_BZIP2
  20. select HAVE_KERNEL_LZMA
  21. select HAVE_KERNEL_XZ
  22. select HAVE_KERNEL_LZO
  23. select HAVE_SYSCALL_TRACEPOINTS
  24. select HAVE_REGS_AND_STACK_ACCESS_API
  25. select HAVE_GENERIC_HARDIRQS
  26. select MAY_HAVE_SPARSE_IRQ
  27. select IRQ_FORCED_THREADING
  28. select RTC_LIB
  29. select GENERIC_ATOMIC64
  30. select GENERIC_IRQ_SHOW
  31. select GENERIC_CLOCKEVENTS
  32. select GENERIC_CMOS_UPDATE if SH_SH03 || SH_DREAMCAST
  33. help
  34. The SuperH is a RISC processor targeted for use in embedded systems
  35. and consumer electronics; it was also used in the Sega Dreamcast
  36. gaming console. The SuperH port has a home page at
  37. <http://www.linux-sh.org/>.
  38. config SUPERH32
  39. def_bool ARCH = "sh"
  40. select HAVE_KPROBES
  41. select HAVE_KRETPROBES
  42. select HAVE_IOREMAP_PROT if MMU && !X2TLB
  43. select HAVE_FUNCTION_TRACER
  44. select HAVE_FTRACE_MCOUNT_RECORD
  45. select HAVE_DYNAMIC_FTRACE
  46. select HAVE_FUNCTION_TRACE_MCOUNT_TEST
  47. select HAVE_FTRACE_NMI_ENTER if DYNAMIC_FTRACE
  48. select HAVE_FUNCTION_GRAPH_TRACER
  49. select HAVE_ARCH_KGDB
  50. select HAVE_HW_BREAKPOINT
  51. select HAVE_MIXED_BREAKPOINTS_REGS
  52. select PERF_EVENTS
  53. select ARCH_HIBERNATION_POSSIBLE if MMU
  54. select SPARSE_IRQ
  55. config SUPERH64
  56. def_bool ARCH = "sh64"
  57. config ARCH_DEFCONFIG
  58. string
  59. default "arch/sh/configs/shx3_defconfig" if SUPERH32
  60. default "arch/sh/configs/cayman_defconfig" if SUPERH64
  61. config RWSEM_GENERIC_SPINLOCK
  62. def_bool y
  63. config RWSEM_XCHGADD_ALGORITHM
  64. bool
  65. config GENERIC_BUG
  66. def_bool y
  67. depends on BUG && SUPERH32
  68. config GENERIC_CSUM
  69. def_bool y
  70. depends on SUPERH64
  71. config GENERIC_HWEIGHT
  72. def_bool y
  73. config IRQ_PER_CPU
  74. def_bool y
  75. config GENERIC_GPIO
  76. def_bool n
  77. config GENERIC_CALIBRATE_DELAY
  78. bool
  79. config GENERIC_LOCKBREAK
  80. def_bool y
  81. depends on SMP && PREEMPT
  82. config ARCH_SUSPEND_POSSIBLE
  83. def_bool n
  84. config ARCH_HIBERNATION_POSSIBLE
  85. def_bool n
  86. config SYS_SUPPORTS_APM_EMULATION
  87. bool
  88. select ARCH_SUSPEND_POSSIBLE
  89. config SYS_SUPPORTS_HUGETLBFS
  90. bool
  91. config SYS_SUPPORTS_SMP
  92. bool
  93. config SYS_SUPPORTS_NUMA
  94. bool
  95. config SYS_SUPPORTS_PCI
  96. bool
  97. config SYS_SUPPORTS_CMT
  98. bool
  99. config SYS_SUPPORTS_MTU2
  100. bool
  101. config SYS_SUPPORTS_TMU
  102. bool
  103. config STACKTRACE_SUPPORT
  104. def_bool y
  105. config LOCKDEP_SUPPORT
  106. def_bool y
  107. config HAVE_LATENCYTOP_SUPPORT
  108. def_bool y
  109. config ARCH_HAS_ILOG2_U32
  110. def_bool n
  111. config ARCH_HAS_ILOG2_U64
  112. def_bool n
  113. config ARCH_NO_VIRT_TO_BUS
  114. def_bool y
  115. config ARCH_HAS_DEFAULT_IDLE
  116. def_bool y
  117. config ARCH_HAS_CPU_IDLE_WAIT
  118. def_bool y
  119. config NO_IOPORT
  120. def_bool !PCI
  121. depends on !SH_CAYMAN && !SH_SH4202_MICRODEV && !SH_SHMIN
  122. config IO_TRAPPED
  123. bool
  124. config SWAP_IO_SPACE
  125. bool
  126. config DMA_COHERENT
  127. bool
  128. config DMA_NONCOHERENT
  129. def_bool !DMA_COHERENT
  130. config NEED_DMA_MAP_STATE
  131. def_bool DMA_NONCOHERENT
  132. config NEED_SG_DMA_LENGTH
  133. def_bool y
  134. source "init/Kconfig"
  135. source "kernel/Kconfig.freezer"
  136. menu "System type"
  137. #
  138. # Processor families
  139. #
  140. config CPU_SH2
  141. bool
  142. config CPU_SH2A
  143. bool
  144. select CPU_SH2
  145. select UNCACHED_MAPPING
  146. config CPU_SH3
  147. bool
  148. select CPU_HAS_INTEVT
  149. select CPU_HAS_SR_RB
  150. select SYS_SUPPORTS_TMU
  151. config CPU_SH4
  152. bool
  153. select CPU_HAS_INTEVT
  154. select CPU_HAS_SR_RB
  155. select CPU_HAS_FPU if !CPU_SH4AL_DSP
  156. select SYS_SUPPORTS_TMU
  157. select SYS_SUPPORTS_HUGETLBFS if MMU
  158. config CPU_SH4A
  159. bool
  160. select CPU_SH4
  161. config CPU_SH4AL_DSP
  162. bool
  163. select CPU_SH4A
  164. select CPU_HAS_DSP
  165. config CPU_SH5
  166. bool
  167. select CPU_HAS_FPU
  168. select SYS_SUPPORTS_TMU
  169. select SYS_SUPPORTS_HUGETLBFS if MMU
  170. config CPU_SHX2
  171. bool
  172. config CPU_SHX3
  173. bool
  174. select DMA_COHERENT
  175. select SYS_SUPPORTS_SMP
  176. select SYS_SUPPORTS_NUMA
  177. config ARCH_SHMOBILE
  178. bool
  179. select ARCH_SUSPEND_POSSIBLE
  180. select PM
  181. select PM_RUNTIME
  182. config CPU_HAS_PMU
  183. depends on CPU_SH4 || CPU_SH4A
  184. default y
  185. bool
  186. if SUPERH32
  187. choice
  188. prompt "Processor sub-type selection"
  189. #
  190. # Processor subtypes
  191. #
  192. # SH-2 Processor Support
  193. config CPU_SUBTYPE_SH7619
  194. bool "Support SH7619 processor"
  195. select CPU_SH2
  196. select SYS_SUPPORTS_CMT
  197. # SH-2A Processor Support
  198. config CPU_SUBTYPE_SH7201
  199. bool "Support SH7201 processor"
  200. select CPU_SH2A
  201. select CPU_HAS_FPU
  202. select SYS_SUPPORTS_MTU2
  203. config CPU_SUBTYPE_SH7203
  204. bool "Support SH7203 processor"
  205. select CPU_SH2A
  206. select CPU_HAS_FPU
  207. select SYS_SUPPORTS_CMT
  208. select SYS_SUPPORTS_MTU2
  209. select ARCH_WANT_OPTIONAL_GPIOLIB
  210. config CPU_SUBTYPE_SH7206
  211. bool "Support SH7206 processor"
  212. select CPU_SH2A
  213. select SYS_SUPPORTS_CMT
  214. select SYS_SUPPORTS_MTU2
  215. config CPU_SUBTYPE_SH7263
  216. bool "Support SH7263 processor"
  217. select CPU_SH2A
  218. select CPU_HAS_FPU
  219. select SYS_SUPPORTS_CMT
  220. select SYS_SUPPORTS_MTU2
  221. config CPU_SUBTYPE_MXG
  222. bool "Support MX-G processor"
  223. select CPU_SH2A
  224. select SYS_SUPPORTS_MTU2
  225. help
  226. Select MX-G if running on an R8A03022BG part.
  227. # SH-3 Processor Support
  228. config CPU_SUBTYPE_SH7705
  229. bool "Support SH7705 processor"
  230. select CPU_SH3
  231. config CPU_SUBTYPE_SH7706
  232. bool "Support SH7706 processor"
  233. select CPU_SH3
  234. help
  235. Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU.
  236. config CPU_SUBTYPE_SH7707
  237. bool "Support SH7707 processor"
  238. select CPU_SH3
  239. help
  240. Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU.
  241. config CPU_SUBTYPE_SH7708
  242. bool "Support SH7708 processor"
  243. select CPU_SH3
  244. help
  245. Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or
  246. if you have a 100 Mhz SH-3 HD6417708R CPU.
  247. config CPU_SUBTYPE_SH7709
  248. bool "Support SH7709 processor"
  249. select CPU_SH3
  250. help
  251. Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU.
  252. config CPU_SUBTYPE_SH7710
  253. bool "Support SH7710 processor"
  254. select CPU_SH3
  255. select CPU_HAS_DSP
  256. help
  257. Select SH7710 if you have a SH3-DSP SH7710 CPU.
  258. config CPU_SUBTYPE_SH7712
  259. bool "Support SH7712 processor"
  260. select CPU_SH3
  261. select CPU_HAS_DSP
  262. help
  263. Select SH7712 if you have a SH3-DSP SH7712 CPU.
  264. config CPU_SUBTYPE_SH7720
  265. bool "Support SH7720 processor"
  266. select CPU_SH3
  267. select CPU_HAS_DSP
  268. select SYS_SUPPORTS_CMT
  269. select ARCH_WANT_OPTIONAL_GPIOLIB
  270. select USB_ARCH_HAS_OHCI
  271. select USB_OHCI_SH if USB_OHCI_HCD
  272. help
  273. Select SH7720 if you have a SH3-DSP SH7720 CPU.
  274. config CPU_SUBTYPE_SH7721
  275. bool "Support SH7721 processor"
  276. select CPU_SH3
  277. select CPU_HAS_DSP
  278. select SYS_SUPPORTS_CMT
  279. select USB_ARCH_HAS_OHCI
  280. select USB_OHCI_SH if USB_OHCI_HCD
  281. help
  282. Select SH7721 if you have a SH3-DSP SH7721 CPU.
  283. # SH-4 Processor Support
  284. config CPU_SUBTYPE_SH7750
  285. bool "Support SH7750 processor"
  286. select CPU_SH4
  287. help
  288. Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU.
  289. config CPU_SUBTYPE_SH7091
  290. bool "Support SH7091 processor"
  291. select CPU_SH4
  292. help
  293. Select SH7091 if you have an SH-4 based Sega device (such as
  294. the Dreamcast, Naomi, and Naomi 2).
  295. config CPU_SUBTYPE_SH7750R
  296. bool "Support SH7750R processor"
  297. select CPU_SH4
  298. config CPU_SUBTYPE_SH7750S
  299. bool "Support SH7750S processor"
  300. select CPU_SH4
  301. config CPU_SUBTYPE_SH7751
  302. bool "Support SH7751 processor"
  303. select CPU_SH4
  304. help
  305. Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU,
  306. or if you have a HD6417751R CPU.
  307. config CPU_SUBTYPE_SH7751R
  308. bool "Support SH7751R processor"
  309. select CPU_SH4
  310. config CPU_SUBTYPE_SH7760
  311. bool "Support SH7760 processor"
  312. select CPU_SH4
  313. config CPU_SUBTYPE_SH4_202
  314. bool "Support SH4-202 processor"
  315. select CPU_SH4
  316. # SH-4A Processor Support
  317. config CPU_SUBTYPE_SH7723
  318. bool "Support SH7723 processor"
  319. select CPU_SH4A
  320. select CPU_SHX2
  321. select ARCH_SHMOBILE
  322. select ARCH_SPARSEMEM_ENABLE
  323. select SYS_SUPPORTS_CMT
  324. select ARCH_WANT_OPTIONAL_GPIOLIB
  325. help
  326. Select SH7723 if you have an SH-MobileR2 CPU.
  327. config CPU_SUBTYPE_SH7724
  328. bool "Support SH7724 processor"
  329. select CPU_SH4A
  330. select CPU_SHX2
  331. select ARCH_SHMOBILE
  332. select ARCH_SPARSEMEM_ENABLE
  333. select SYS_SUPPORTS_CMT
  334. select ARCH_WANT_OPTIONAL_GPIOLIB
  335. help
  336. Select SH7724 if you have an SH-MobileR2R CPU.
  337. config CPU_SUBTYPE_SH7757
  338. bool "Support SH7757 processor"
  339. select CPU_SH4A
  340. select CPU_SHX2
  341. select ARCH_WANT_OPTIONAL_GPIOLIB
  342. select USB_ARCH_HAS_OHCI
  343. select USB_ARCH_HAS_EHCI
  344. help
  345. Select SH7757 if you have a SH4A SH7757 CPU.
  346. config CPU_SUBTYPE_SH7763
  347. bool "Support SH7763 processor"
  348. select CPU_SH4A
  349. select USB_ARCH_HAS_OHCI
  350. select USB_OHCI_SH if USB_OHCI_HCD
  351. help
  352. Select SH7763 if you have a SH4A SH7763(R5S77631) CPU.
  353. config CPU_SUBTYPE_SH7770
  354. bool "Support SH7770 processor"
  355. select CPU_SH4A
  356. config CPU_SUBTYPE_SH7780
  357. bool "Support SH7780 processor"
  358. select CPU_SH4A
  359. config CPU_SUBTYPE_SH7785
  360. bool "Support SH7785 processor"
  361. select CPU_SH4A
  362. select CPU_SHX2
  363. select ARCH_SPARSEMEM_ENABLE
  364. select SYS_SUPPORTS_NUMA
  365. select ARCH_WANT_OPTIONAL_GPIOLIB
  366. config CPU_SUBTYPE_SH7786
  367. bool "Support SH7786 processor"
  368. select CPU_SH4A
  369. select CPU_SHX3
  370. select CPU_HAS_PTEAEX
  371. select GENERIC_CLOCKEVENTS_BROADCAST if SMP
  372. select ARCH_WANT_OPTIONAL_GPIOLIB
  373. select USB_ARCH_HAS_OHCI
  374. select USB_OHCI_SH if USB_OHCI_HCD
  375. select USB_ARCH_HAS_EHCI
  376. select USB_EHCI_SH if USB_EHCI_HCD
  377. config CPU_SUBTYPE_SHX3
  378. bool "Support SH-X3 processor"
  379. select CPU_SH4A
  380. select CPU_SHX3
  381. select GENERIC_CLOCKEVENTS_BROADCAST if SMP
  382. select ARCH_REQUIRE_GPIOLIB
  383. # SH4AL-DSP Processor Support
  384. config CPU_SUBTYPE_SH7343
  385. bool "Support SH7343 processor"
  386. select CPU_SH4AL_DSP
  387. select ARCH_SHMOBILE
  388. select SYS_SUPPORTS_CMT
  389. config CPU_SUBTYPE_SH7722
  390. bool "Support SH7722 processor"
  391. select CPU_SH4AL_DSP
  392. select CPU_SHX2
  393. select ARCH_SHMOBILE
  394. select ARCH_SPARSEMEM_ENABLE
  395. select SYS_SUPPORTS_NUMA
  396. select SYS_SUPPORTS_CMT
  397. select ARCH_WANT_OPTIONAL_GPIOLIB
  398. config CPU_SUBTYPE_SH7366
  399. bool "Support SH7366 processor"
  400. select CPU_SH4AL_DSP
  401. select CPU_SHX2
  402. select ARCH_SHMOBILE
  403. select ARCH_SPARSEMEM_ENABLE
  404. select SYS_SUPPORTS_NUMA
  405. select SYS_SUPPORTS_CMT
  406. endchoice
  407. endif
  408. if SUPERH64
  409. choice
  410. prompt "Processor sub-type selection"
  411. # SH-5 Processor Support
  412. config CPU_SUBTYPE_SH5_101
  413. bool "Support SH5-101 processor"
  414. select CPU_SH5
  415. config CPU_SUBTYPE_SH5_103
  416. bool "Support SH5-103 processor"
  417. select CPU_SH5
  418. endchoice
  419. endif
  420. source "arch/sh/mm/Kconfig"
  421. source "arch/sh/Kconfig.cpu"
  422. source "arch/sh/boards/Kconfig"
  423. menu "Timer and clock configuration"
  424. config SH_TIMER_TMU
  425. bool "TMU timer driver"
  426. depends on SYS_SUPPORTS_TMU
  427. default y
  428. help
  429. This enables the build of the TMU timer driver.
  430. config SH_TIMER_CMT
  431. bool "CMT timer driver"
  432. depends on SYS_SUPPORTS_CMT
  433. default y
  434. help
  435. This enables build of the CMT timer driver.
  436. config SH_TIMER_MTU2
  437. bool "MTU2 timer driver"
  438. depends on SYS_SUPPORTS_MTU2
  439. default y
  440. help
  441. This enables build of the MTU2 timer driver.
  442. config SH_PCLK_FREQ
  443. int "Peripheral clock frequency (in Hz)"
  444. depends on SH_CLK_CPG_LEGACY
  445. default "31250000" if CPU_SUBTYPE_SH7619
  446. default "33333333" if CPU_SUBTYPE_SH7770 || \
  447. CPU_SUBTYPE_SH7760 || \
  448. CPU_SUBTYPE_SH7705 || \
  449. CPU_SUBTYPE_SH7203 || \
  450. CPU_SUBTYPE_SH7206 || \
  451. CPU_SUBTYPE_SH7263 || \
  452. CPU_SUBTYPE_MXG
  453. default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
  454. default "66000000" if CPU_SUBTYPE_SH4_202
  455. default "50000000"
  456. help
  457. This option is used to specify the peripheral clock frequency.
  458. This is necessary for determining the reference clock value on
  459. platforms lacking an RTC.
  460. config SH_CLK_CPG
  461. def_bool y
  462. config SH_CLK_CPG_LEGACY
  463. depends on SH_CLK_CPG
  464. def_bool y if !CPU_SUBTYPE_SH7785 && !ARCH_SHMOBILE && \
  465. !CPU_SHX3 && !CPU_SUBTYPE_SH7757
  466. source "kernel/time/Kconfig"
  467. endmenu
  468. menu "CPU Frequency scaling"
  469. source "drivers/cpufreq/Kconfig"
  470. config SH_CPU_FREQ
  471. tristate "SuperH CPU Frequency driver"
  472. depends on CPU_FREQ
  473. select CPU_FREQ_TABLE
  474. help
  475. This adds the cpufreq driver for SuperH. Any CPU that supports
  476. clock rate rounding through the clock framework can use this
  477. driver. While it will make the kernel slightly larger, this is
  478. harmless for CPUs that don't support rate rounding. The driver
  479. will also generate a notice in the boot log before disabling
  480. itself if the CPU in question is not capable of rate rounding.
  481. For details, take a look at <file:Documentation/cpu-freq>.
  482. If unsure, say N.
  483. endmenu
  484. source "arch/sh/drivers/Kconfig"
  485. endmenu
  486. menu "Kernel features"
  487. source kernel/Kconfig.hz
  488. config KEXEC
  489. bool "kexec system call (EXPERIMENTAL)"
  490. depends on SUPERH32 && EXPERIMENTAL && MMU
  491. help
  492. kexec is a system call that implements the ability to shutdown your
  493. current kernel, and to start another kernel. It is like a reboot
  494. but it is independent of the system firmware. And like a reboot
  495. you can start any kernel with it, not just Linux.
  496. The name comes from the similarity to the exec system call.
  497. It is an ongoing process to be certain the hardware in a machine
  498. is properly shutdown, so do not be surprised if this code does not
  499. initially work for you. It may help to enable device hotplugging
  500. support. As of this writing the exact hardware interface is
  501. strongly in flux, so no good recommendation can be made.
  502. config CRASH_DUMP
  503. bool "kernel crash dumps (EXPERIMENTAL)"
  504. depends on SUPERH32 && EXPERIMENTAL && BROKEN_ON_SMP
  505. help
  506. Generate crash dump after being started by kexec.
  507. This should be normally only set in special crash dump kernels
  508. which are loaded in the main kernel with kexec-tools into
  509. a specially reserved region and then later executed after
  510. a crash by kdump/kexec. The crash dump kernel must be compiled
  511. to a memory address not used by the main kernel using
  512. PHYSICAL_START.
  513. For more details see Documentation/kdump/kdump.txt
  514. config KEXEC_JUMP
  515. bool "kexec jump (EXPERIMENTAL)"
  516. depends on SUPERH32 && KEXEC && HIBERNATION && EXPERIMENTAL
  517. help
  518. Jump between original kernel and kexeced kernel and invoke
  519. code via KEXEC
  520. config PHYSICAL_START
  521. hex "Physical address where the kernel is loaded" if (EXPERT || CRASH_DUMP)
  522. default MEMORY_START
  523. ---help---
  524. This gives the physical address where the kernel is loaded
  525. and is ordinarily the same as MEMORY_START.
  526. Different values are primarily used in the case of kexec on panic
  527. where the fail safe kernel needs to run at a different address
  528. than the panic-ed kernel.
  529. config SECCOMP
  530. bool "Enable seccomp to safely compute untrusted bytecode"
  531. depends on PROC_FS
  532. help
  533. This kernel feature is useful for number crunching applications
  534. that may need to compute untrusted bytecode during their
  535. execution. By using pipes or other transports made available to
  536. the process as file descriptors supporting the read/write
  537. syscalls, it's possible to isolate those applications in
  538. their own address space using seccomp. Once seccomp is
  539. enabled via prctl, it cannot be disabled and the task is only
  540. allowed to execute a few safe syscalls defined by each seccomp
  541. mode.
  542. If unsure, say N.
  543. config SMP
  544. bool "Symmetric multi-processing support"
  545. depends on SYS_SUPPORTS_SMP
  546. select USE_GENERIC_SMP_HELPERS
  547. ---help---
  548. This enables support for systems with more than one CPU. If you have
  549. a system with only one CPU, like most personal computers, say N. If
  550. you have a system with more than one CPU, say Y.
  551. If you say N here, the kernel will run on single and multiprocessor
  552. machines, but will use only one CPU of a multiprocessor machine. If
  553. you say Y here, the kernel will run on many, but not all,
  554. singleprocessor machines. On a singleprocessor machine, the kernel
  555. will run faster if you say N here.
  556. People using multiprocessor machines who say Y here should also say
  557. Y to "Enhanced Real Time Clock Support", below.
  558. See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
  559. available at <http://www.tldp.org/docs.html#howto>.
  560. If you don't know what to do here, say N.
  561. config NR_CPUS
  562. int "Maximum number of CPUs (2-32)"
  563. range 2 32
  564. depends on SMP
  565. default "4" if CPU_SUBTYPE_SHX3
  566. default "2"
  567. help
  568. This allows you to specify the maximum number of CPUs which this
  569. kernel will support. The maximum supported value is 32 and the
  570. minimum value which makes sense is 2.
  571. This is purely to save memory - each supported CPU adds
  572. approximately eight kilobytes to the kernel image.
  573. config HOTPLUG_CPU
  574. bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
  575. depends on SMP && HOTPLUG && EXPERIMENTAL
  576. help
  577. Say Y here to experiment with turning CPUs off and on. CPUs
  578. can be controlled through /sys/devices/system/cpu.
  579. source "kernel/Kconfig.preempt"
  580. config GUSA
  581. def_bool y
  582. depends on !SMP && SUPERH32
  583. help
  584. This enables support for gUSA (general UserSpace Atomicity).
  585. This is the default implementation for both UP and non-ll/sc
  586. CPUs, and is used by the libc, amongst others.
  587. For additional information, design information can be found
  588. in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>.
  589. This should only be disabled for special cases where alternate
  590. atomicity implementations exist.
  591. config GUSA_RB
  592. bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)"
  593. depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A)
  594. help
  595. Enabling this option will allow the kernel to implement some
  596. atomic operations using a software implementation of load-locked/
  597. store-conditional (LLSC). On machines which do not have hardware
  598. LLSC, this should be more efficient than the other alternative of
  599. disabling interrupts around the atomic sequence.
  600. config HW_PERF_EVENTS
  601. bool "Enable hardware performance counter support for perf events"
  602. depends on PERF_EVENTS && CPU_HAS_PMU
  603. default y
  604. help
  605. Enable hardware performance counter support for perf events. If
  606. disabled, perf events will use software events only.
  607. source "drivers/sh/Kconfig"
  608. endmenu
  609. menu "Boot options"
  610. config ZERO_PAGE_OFFSET
  611. hex
  612. default "0x00010000" if PAGE_SIZE_64KB || SH_RTS7751R2D || \
  613. SH_7751_SOLUTION_ENGINE
  614. default "0x00004000" if PAGE_SIZE_16KB || SH_SH03
  615. default "0x00002000" if PAGE_SIZE_8KB
  616. default "0x00001000"
  617. help
  618. This sets the default offset of zero page.
  619. config BOOT_LINK_OFFSET
  620. hex
  621. default "0x00210000" if SH_SHMIN
  622. default "0x00400000" if SH_CAYMAN
  623. default "0x00810000" if SH_7780_SOLUTION_ENGINE
  624. default "0x009e0000" if SH_TITAN
  625. default "0x01800000" if SH_SDK7780
  626. default "0x02000000" if SH_EDOSK7760
  627. default "0x00800000"
  628. help
  629. This option allows you to set the link address offset of the zImage.
  630. This can be useful if you are on a board which has a small amount of
  631. memory.
  632. config ENTRY_OFFSET
  633. hex
  634. default "0x00001000" if PAGE_SIZE_4KB
  635. default "0x00002000" if PAGE_SIZE_8KB
  636. default "0x00004000" if PAGE_SIZE_16KB
  637. default "0x00010000" if PAGE_SIZE_64KB
  638. default "0x00000000"
  639. config ROMIMAGE_MMCIF
  640. bool "Include MMCIF loader in romImage (EXPERIMENTAL)"
  641. depends on CPU_SUBTYPE_SH7724 && EXPERIMENTAL
  642. help
  643. Say Y here to include experimental MMCIF loading code in
  644. romImage. With this enabled it is possible to write the romImage
  645. kernel image to an MMC card and boot the kernel straight from
  646. the reset vector. At reset the processor Mask ROM will load the
  647. first part of the romImage which in turn loads the rest the kernel
  648. image to RAM using the MMCIF hardware block.
  649. choice
  650. prompt "Kernel command line"
  651. optional
  652. default CMDLINE_OVERWRITE
  653. help
  654. Setting this option allows the kernel command line arguments
  655. to be set.
  656. config CMDLINE_OVERWRITE
  657. bool "Overwrite bootloader kernel arguments"
  658. help
  659. Given string will overwrite any arguments passed in by
  660. a bootloader.
  661. config CMDLINE_EXTEND
  662. bool "Extend bootloader kernel arguments"
  663. help
  664. Given string will be concatenated with arguments passed in
  665. by a bootloader.
  666. endchoice
  667. config CMDLINE
  668. string "Kernel command line arguments string"
  669. depends on CMDLINE_OVERWRITE || CMDLINE_EXTEND
  670. default "console=ttySC1,115200"
  671. endmenu
  672. menu "Bus options"
  673. config SUPERHYWAY
  674. tristate "SuperHyway Bus support"
  675. depends on CPU_SUBTYPE_SH4_202
  676. config MAPLE
  677. bool "Maple Bus support"
  678. depends on SH_DREAMCAST
  679. help
  680. The Maple Bus is SEGA's serial communication bus for peripherals
  681. on the Dreamcast. Without this bus support you won't be able to
  682. get your Dreamcast keyboard etc to work, so most users
  683. probably want to say 'Y' here, unless you are only using the
  684. Dreamcast with a serial line terminal or a remote network
  685. connection.
  686. config PCI
  687. bool "PCI support"
  688. depends on SYS_SUPPORTS_PCI
  689. select PCI_DOMAINS
  690. select GENERIC_PCI_IOMAP
  691. select NO_GENERIC_PCI_IOPORT_MAP
  692. help
  693. Find out whether you have a PCI motherboard. PCI is the name of a
  694. bus system, i.e. the way the CPU talks to the other stuff inside
  695. your box. If you have PCI, say Y, otherwise N.
  696. config PCI_DOMAINS
  697. bool
  698. source "drivers/pci/pcie/Kconfig"
  699. source "drivers/pci/Kconfig"
  700. source "drivers/pcmcia/Kconfig"
  701. source "drivers/pci/hotplug/Kconfig"
  702. endmenu
  703. menu "Executable file formats"
  704. source "fs/Kconfig.binfmt"
  705. endmenu
  706. menu "Power management options (EXPERIMENTAL)"
  707. depends on EXPERIMENTAL
  708. source "kernel/power/Kconfig"
  709. source "drivers/cpuidle/Kconfig"
  710. endmenu
  711. source "net/Kconfig"
  712. source "drivers/Kconfig"
  713. source "fs/Kconfig"
  714. source "arch/sh/Kconfig.debug"
  715. source "security/Kconfig"
  716. source "crypto/Kconfig"
  717. source "lib/Kconfig"