Kconfig 19 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_LMB
  12. select HAVE_OPROFILE
  13. select HAVE_GENERIC_DMA_COHERENT
  14. select HAVE_IOREMAP_PROT if MMU
  15. select HAVE_ARCH_TRACEHOOK
  16. select HAVE_DMA_API_DEBUG
  17. select HAVE_DMA_ATTRS
  18. select HAVE_PERF_EVENTS
  19. select PERF_USE_VMALLOC
  20. select HAVE_KERNEL_GZIP
  21. select HAVE_KERNEL_BZIP2
  22. select HAVE_KERNEL_LZMA
  23. select HAVE_SYSCALL_TRACEPOINTS
  24. select RTC_LIB
  25. select GENERIC_ATOMIC64
  26. help
  27. The SuperH is a RISC processor targeted for use in embedded systems
  28. and consumer electronics; it was also used in the Sega Dreamcast
  29. gaming console. The SuperH port has a home page at
  30. <http://www.linux-sh.org/>.
  31. config SUPERH32
  32. def_bool ARCH = "sh"
  33. select HAVE_KPROBES
  34. select HAVE_KRETPROBES
  35. select HAVE_FUNCTION_TRACER
  36. select HAVE_FTRACE_MCOUNT_RECORD
  37. select HAVE_DYNAMIC_FTRACE
  38. select HAVE_FUNCTION_TRACE_MCOUNT_TEST
  39. select HAVE_FTRACE_NMI_ENTER if DYNAMIC_FTRACE
  40. select HAVE_FUNCTION_GRAPH_TRACER
  41. select HAVE_ARCH_KGDB
  42. select ARCH_HIBERNATION_POSSIBLE if MMU
  43. config SUPERH64
  44. def_bool ARCH = "sh64"
  45. config ARCH_DEFCONFIG
  46. string
  47. default "arch/sh/configs/shx3_defconfig" if SUPERH32
  48. default "arch/sh/configs/cayman_defconfig" if SUPERH64
  49. config RWSEM_GENERIC_SPINLOCK
  50. def_bool y
  51. config RWSEM_XCHGADD_ALGORITHM
  52. bool
  53. config GENERIC_BUG
  54. def_bool y
  55. depends on BUG && SUPERH32
  56. config GENERIC_CSUM
  57. def_bool y
  58. depends on SUPERH64
  59. config GENERIC_FIND_NEXT_BIT
  60. def_bool y
  61. config GENERIC_HWEIGHT
  62. def_bool y
  63. config GENERIC_HARDIRQS
  64. def_bool y
  65. config GENERIC_HARDIRQS_NO__DO_IRQ
  66. def_bool y
  67. config GENERIC_IRQ_PROBE
  68. def_bool y
  69. config IRQ_PER_CPU
  70. def_bool y
  71. config GENERIC_GPIO
  72. def_bool n
  73. config GENERIC_CALIBRATE_DELAY
  74. bool
  75. config GENERIC_IOMAP
  76. bool
  77. config GENERIC_TIME
  78. def_bool y
  79. config GENERIC_CLOCKEVENTS
  80. def_bool y
  81. config GENERIC_CLOCKEVENTS_BROADCAST
  82. bool
  83. config GENERIC_CMOS_UPDATE
  84. def_bool y
  85. depends on SH_SH03 || SH_DREAMCAST
  86. config GENERIC_LOCKBREAK
  87. def_bool y
  88. depends on SMP && PREEMPT
  89. config SYS_SUPPORTS_PM
  90. bool
  91. depends on !SMP
  92. config ARCH_SUSPEND_POSSIBLE
  93. def_bool n
  94. config ARCH_HIBERNATION_POSSIBLE
  95. def_bool n
  96. config SYS_SUPPORTS_APM_EMULATION
  97. bool
  98. select ARCH_SUSPEND_POSSIBLE
  99. config SYS_SUPPORTS_HUGETLBFS
  100. bool
  101. config SYS_SUPPORTS_SMP
  102. bool
  103. config SYS_SUPPORTS_NUMA
  104. bool
  105. config SYS_SUPPORTS_PCI
  106. bool
  107. config SYS_SUPPORTS_CMT
  108. bool
  109. config SYS_SUPPORTS_MTU2
  110. bool
  111. config SYS_SUPPORTS_TMU
  112. bool
  113. config STACKTRACE_SUPPORT
  114. def_bool y
  115. config LOCKDEP_SUPPORT
  116. def_bool y
  117. config HAVE_LATENCYTOP_SUPPORT
  118. def_bool y
  119. depends on !SMP
  120. config ARCH_HAS_ILOG2_U32
  121. def_bool n
  122. config ARCH_HAS_ILOG2_U64
  123. def_bool n
  124. config ARCH_NO_VIRT_TO_BUS
  125. def_bool y
  126. config ARCH_HAS_DEFAULT_IDLE
  127. def_bool y
  128. config ARCH_HAS_CPU_IDLE_WAIT
  129. def_bool y
  130. config IO_TRAPPED
  131. bool
  132. config DMA_COHERENT
  133. bool
  134. config DMA_NONCOHERENT
  135. def_bool !DMA_COHERENT
  136. source "init/Kconfig"
  137. source "kernel/Kconfig.freezer"
  138. menu "System type"
  139. #
  140. # Processor families
  141. #
  142. config CPU_SH2
  143. bool
  144. config CPU_SH2A
  145. bool
  146. select CPU_SH2
  147. config CPU_SH3
  148. bool
  149. select CPU_HAS_INTEVT
  150. select CPU_HAS_SR_RB
  151. select SYS_SUPPORTS_TMU
  152. config CPU_SH4
  153. bool
  154. select CPU_HAS_INTEVT
  155. select CPU_HAS_SR_RB
  156. select CPU_HAS_FPU if !CPU_SH4AL_DSP
  157. select SYS_SUPPORTS_TMU
  158. select SYS_SUPPORTS_HUGETLBFS if MMU
  159. config CPU_SH4A
  160. bool
  161. select CPU_SH4
  162. config CPU_SH4AL_DSP
  163. bool
  164. select CPU_SH4A
  165. select CPU_HAS_DSP
  166. config CPU_SH5
  167. bool
  168. select CPU_HAS_FPU
  169. select SYS_SUPPORTS_TMU
  170. select SYS_SUPPORTS_HUGETLBFS if MMU
  171. config CPU_SHX2
  172. bool
  173. config CPU_SHX3
  174. bool
  175. select DMA_COHERENT
  176. config ARCH_SHMOBILE
  177. bool
  178. select ARCH_SUSPEND_POSSIBLE
  179. select PM
  180. select PM_RUNTIME
  181. if SUPERH32
  182. choice
  183. prompt "Processor sub-type selection"
  184. #
  185. # Processor subtypes
  186. #
  187. # SH-2 Processor Support
  188. config CPU_SUBTYPE_SH7619
  189. bool "Support SH7619 processor"
  190. select CPU_SH2
  191. select SYS_SUPPORTS_CMT
  192. # SH-2A Processor Support
  193. config CPU_SUBTYPE_SH7201
  194. bool "Support SH7201 processor"
  195. select CPU_SH2A
  196. select CPU_HAS_FPU
  197. select SYS_SUPPORTS_MTU2
  198. config CPU_SUBTYPE_SH7203
  199. bool "Support SH7203 processor"
  200. select CPU_SH2A
  201. select CPU_HAS_FPU
  202. select SYS_SUPPORTS_CMT
  203. select SYS_SUPPORTS_MTU2
  204. config CPU_SUBTYPE_SH7206
  205. bool "Support SH7206 processor"
  206. select CPU_SH2A
  207. select SYS_SUPPORTS_CMT
  208. select SYS_SUPPORTS_MTU2
  209. config CPU_SUBTYPE_SH7263
  210. bool "Support SH7263 processor"
  211. select CPU_SH2A
  212. select CPU_HAS_FPU
  213. select SYS_SUPPORTS_CMT
  214. select SYS_SUPPORTS_MTU2
  215. config CPU_SUBTYPE_MXG
  216. bool "Support MX-G processor"
  217. select CPU_SH2A
  218. select SYS_SUPPORTS_MTU2
  219. help
  220. Select MX-G if running on an R8A03022BG part.
  221. # SH-3 Processor Support
  222. config CPU_SUBTYPE_SH7705
  223. bool "Support SH7705 processor"
  224. select CPU_SH3
  225. config CPU_SUBTYPE_SH7706
  226. bool "Support SH7706 processor"
  227. select CPU_SH3
  228. help
  229. Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU.
  230. config CPU_SUBTYPE_SH7707
  231. bool "Support SH7707 processor"
  232. select CPU_SH3
  233. help
  234. Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU.
  235. config CPU_SUBTYPE_SH7708
  236. bool "Support SH7708 processor"
  237. select CPU_SH3
  238. help
  239. Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or
  240. if you have a 100 Mhz SH-3 HD6417708R CPU.
  241. config CPU_SUBTYPE_SH7709
  242. bool "Support SH7709 processor"
  243. select CPU_SH3
  244. help
  245. Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU.
  246. config CPU_SUBTYPE_SH7710
  247. bool "Support SH7710 processor"
  248. select CPU_SH3
  249. select CPU_HAS_DSP
  250. help
  251. Select SH7710 if you have a SH3-DSP SH7710 CPU.
  252. config CPU_SUBTYPE_SH7712
  253. bool "Support SH7712 processor"
  254. select CPU_SH3
  255. select CPU_HAS_DSP
  256. help
  257. Select SH7712 if you have a SH3-DSP SH7712 CPU.
  258. config CPU_SUBTYPE_SH7720
  259. bool "Support SH7720 processor"
  260. select CPU_SH3
  261. select CPU_HAS_DSP
  262. select SYS_SUPPORTS_CMT
  263. help
  264. Select SH7720 if you have a SH3-DSP SH7720 CPU.
  265. config CPU_SUBTYPE_SH7721
  266. bool "Support SH7721 processor"
  267. select CPU_SH3
  268. select CPU_HAS_DSP
  269. select SYS_SUPPORTS_CMT
  270. help
  271. Select SH7721 if you have a SH3-DSP SH7721 CPU.
  272. # SH-4 Processor Support
  273. config CPU_SUBTYPE_SH7750
  274. bool "Support SH7750 processor"
  275. select CPU_SH4
  276. help
  277. Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU.
  278. config CPU_SUBTYPE_SH7091
  279. bool "Support SH7091 processor"
  280. select CPU_SH4
  281. help
  282. Select SH7091 if you have an SH-4 based Sega device (such as
  283. the Dreamcast, Naomi, and Naomi 2).
  284. config CPU_SUBTYPE_SH7750R
  285. bool "Support SH7750R processor"
  286. select CPU_SH4
  287. config CPU_SUBTYPE_SH7750S
  288. bool "Support SH7750S processor"
  289. select CPU_SH4
  290. config CPU_SUBTYPE_SH7751
  291. bool "Support SH7751 processor"
  292. select CPU_SH4
  293. help
  294. Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU,
  295. or if you have a HD6417751R CPU.
  296. config CPU_SUBTYPE_SH7751R
  297. bool "Support SH7751R processor"
  298. select CPU_SH4
  299. config CPU_SUBTYPE_SH7760
  300. bool "Support SH7760 processor"
  301. select CPU_SH4
  302. config CPU_SUBTYPE_SH4_202
  303. bool "Support SH4-202 processor"
  304. select CPU_SH4
  305. # SH-4A Processor Support
  306. config CPU_SUBTYPE_SH7723
  307. bool "Support SH7723 processor"
  308. select CPU_SH4A
  309. select CPU_SHX2
  310. select ARCH_SHMOBILE
  311. select ARCH_SPARSEMEM_ENABLE
  312. select SYS_SUPPORTS_CMT
  313. help
  314. Select SH7723 if you have an SH-MobileR2 CPU.
  315. config CPU_SUBTYPE_SH7724
  316. bool "Support SH7724 processor"
  317. select CPU_SH4A
  318. select CPU_SHX2
  319. select ARCH_SHMOBILE
  320. select ARCH_SPARSEMEM_ENABLE
  321. select SYS_SUPPORTS_CMT
  322. help
  323. Select SH7724 if you have an SH-MobileR2R CPU.
  324. config CPU_SUBTYPE_SH7757
  325. bool "Support SH7757 processor"
  326. select CPU_SH4A
  327. select CPU_SHX2
  328. help
  329. Select SH7757 if you have a SH4A SH7757 CPU.
  330. config CPU_SUBTYPE_SH7763
  331. bool "Support SH7763 processor"
  332. select CPU_SH4A
  333. help
  334. Select SH7763 if you have a SH4A SH7763(R5S77631) CPU.
  335. config CPU_SUBTYPE_SH7770
  336. bool "Support SH7770 processor"
  337. select CPU_SH4A
  338. config CPU_SUBTYPE_SH7780
  339. bool "Support SH7780 processor"
  340. select CPU_SH4A
  341. config CPU_SUBTYPE_SH7785
  342. bool "Support SH7785 processor"
  343. select CPU_SH4A
  344. select CPU_SHX2
  345. select ARCH_SPARSEMEM_ENABLE
  346. select SYS_SUPPORTS_NUMA
  347. config CPU_SUBTYPE_SH7786
  348. bool "Support SH7786 processor"
  349. select CPU_SH4A
  350. select CPU_SHX3
  351. select CPU_HAS_PTEAEX
  352. select ARCH_SPARSEMEM_ENABLE
  353. select SYS_SUPPORTS_NUMA
  354. select SYS_SUPPORTS_SMP
  355. select GENERIC_CLOCKEVENTS_BROADCAST if SMP
  356. config CPU_SUBTYPE_SHX3
  357. bool "Support SH-X3 processor"
  358. select CPU_SH4A
  359. select CPU_SHX3
  360. select ARCH_SPARSEMEM_ENABLE
  361. select SYS_SUPPORTS_NUMA
  362. select SYS_SUPPORTS_SMP
  363. select GENERIC_CLOCKEVENTS_BROADCAST if SMP
  364. # SH4AL-DSP Processor Support
  365. config CPU_SUBTYPE_SH7343
  366. bool "Support SH7343 processor"
  367. select CPU_SH4AL_DSP
  368. select ARCH_SHMOBILE
  369. select SYS_SUPPORTS_CMT
  370. config CPU_SUBTYPE_SH7722
  371. bool "Support SH7722 processor"
  372. select CPU_SH4AL_DSP
  373. select CPU_SHX2
  374. select ARCH_SHMOBILE
  375. select ARCH_SPARSEMEM_ENABLE
  376. select SYS_SUPPORTS_NUMA
  377. select SYS_SUPPORTS_CMT
  378. config CPU_SUBTYPE_SH7366
  379. bool "Support SH7366 processor"
  380. select CPU_SH4AL_DSP
  381. select CPU_SHX2
  382. select ARCH_SHMOBILE
  383. select ARCH_SPARSEMEM_ENABLE
  384. select SYS_SUPPORTS_NUMA
  385. select SYS_SUPPORTS_CMT
  386. endchoice
  387. endif
  388. if SUPERH64
  389. choice
  390. prompt "Processor sub-type selection"
  391. # SH-5 Processor Support
  392. config CPU_SUBTYPE_SH5_101
  393. bool "Support SH5-101 processor"
  394. select CPU_SH5
  395. config CPU_SUBTYPE_SH5_103
  396. bool "Support SH5-103 processor"
  397. select CPU_SH5
  398. endchoice
  399. endif
  400. source "arch/sh/mm/Kconfig"
  401. source "arch/sh/Kconfig.cpu"
  402. source "arch/sh/boards/Kconfig"
  403. menu "Timer and clock configuration"
  404. config SH_TIMER_TMU
  405. bool "TMU timer driver"
  406. depends on SYS_SUPPORTS_TMU
  407. default y
  408. help
  409. This enables the build of the TMU timer driver.
  410. config SH_TIMER_CMT
  411. bool "CMT timer driver"
  412. depends on SYS_SUPPORTS_CMT
  413. default y
  414. help
  415. This enables build of the CMT timer driver.
  416. config SH_TIMER_MTU2
  417. bool "MTU2 timer driver"
  418. depends on SYS_SUPPORTS_MTU2
  419. default y
  420. help
  421. This enables build of the MTU2 timer driver.
  422. config SH_PCLK_FREQ
  423. int "Peripheral clock frequency (in Hz)"
  424. depends on SH_CLK_CPG_LEGACY
  425. default "31250000" if CPU_SUBTYPE_SH7619
  426. default "33333333" if CPU_SUBTYPE_SH7770 || \
  427. CPU_SUBTYPE_SH7760 || \
  428. CPU_SUBTYPE_SH7705 || \
  429. CPU_SUBTYPE_SH7203 || \
  430. CPU_SUBTYPE_SH7206 || \
  431. CPU_SUBTYPE_SH7263 || \
  432. CPU_SUBTYPE_MXG || \
  433. CPU_SUBTYPE_SH7786
  434. default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
  435. default "66000000" if CPU_SUBTYPE_SH4_202
  436. default "50000000"
  437. help
  438. This option is used to specify the peripheral clock frequency.
  439. This is necessary for determining the reference clock value on
  440. platforms lacking an RTC.
  441. config SH_CLK_CPG
  442. def_bool y
  443. config SH_CLK_CPG_LEGACY
  444. depends on SH_CLK_CPG
  445. def_bool y if !CPU_SUBTYPE_SH7785 && !ARCH_SHMOBILE
  446. config SH_CLK_MD
  447. int "CPU Mode Pin Setting"
  448. depends on CPU_SH2
  449. default 6 if CPU_SUBTYPE_SH7206
  450. default 5 if CPU_SUBTYPE_SH7619
  451. default 0
  452. help
  453. MD2 - MD0 pin setting.
  454. source "kernel/time/Kconfig"
  455. endmenu
  456. menu "CPU Frequency scaling"
  457. source "drivers/cpufreq/Kconfig"
  458. config SH_CPU_FREQ
  459. tristate "SuperH CPU Frequency driver"
  460. depends on CPU_FREQ
  461. select CPU_FREQ_TABLE
  462. help
  463. This adds the cpufreq driver for SuperH. Any CPU that supports
  464. clock rate rounding through the clock framework can use this
  465. driver. While it will make the kernel slightly larger, this is
  466. harmless for CPUs that don't support rate rounding. The driver
  467. will also generate a notice in the boot log before disabling
  468. itself if the CPU in question is not capable of rate rounding.
  469. For details, take a look at <file:Documentation/cpu-freq>.
  470. If unsure, say N.
  471. endmenu
  472. source "arch/sh/drivers/Kconfig"
  473. endmenu
  474. menu "Kernel features"
  475. source kernel/Kconfig.hz
  476. config KEXEC
  477. bool "kexec system call (EXPERIMENTAL)"
  478. depends on SUPERH32 && EXPERIMENTAL && MMU
  479. help
  480. kexec is a system call that implements the ability to shutdown your
  481. current kernel, and to start another kernel. It is like a reboot
  482. but it is independent of the system firmware. And like a reboot
  483. you can start any kernel with it, not just Linux.
  484. The name comes from the similarity to the exec system call.
  485. It is an ongoing process to be certain the hardware in a machine
  486. is properly shutdown, so do not be surprised if this code does not
  487. initially work for you. It may help to enable device hotplugging
  488. support. As of this writing the exact hardware interface is
  489. strongly in flux, so no good recommendation can be made.
  490. config CRASH_DUMP
  491. bool "kernel crash dumps (EXPERIMENTAL)"
  492. depends on SUPERH32 && EXPERIMENTAL
  493. help
  494. Generate crash dump after being started by kexec.
  495. This should be normally only set in special crash dump kernels
  496. which are loaded in the main kernel with kexec-tools into
  497. a specially reserved region and then later executed after
  498. a crash by kdump/kexec. The crash dump kernel must be compiled
  499. to a memory address not used by the main kernel using
  500. MEMORY_START.
  501. For more details see Documentation/kdump/kdump.txt
  502. config KEXEC_JUMP
  503. bool "kexec jump (EXPERIMENTAL)"
  504. depends on SUPERH32 && KEXEC && HIBERNATION && EXPERIMENTAL
  505. help
  506. Jump between original kernel and kexeced kernel and invoke
  507. code via KEXEC
  508. config SECCOMP
  509. bool "Enable seccomp to safely compute untrusted bytecode"
  510. depends on PROC_FS
  511. help
  512. This kernel feature is useful for number crunching applications
  513. that may need to compute untrusted bytecode during their
  514. execution. By using pipes or other transports made available to
  515. the process as file descriptors supporting the read/write
  516. syscalls, it's possible to isolate those applications in
  517. their own address space using seccomp. Once seccomp is
  518. enabled via prctl, it cannot be disabled and the task is only
  519. allowed to execute a few safe syscalls defined by each seccomp
  520. mode.
  521. If unsure, say N.
  522. config SMP
  523. bool "Symmetric multi-processing support"
  524. depends on SYS_SUPPORTS_SMP
  525. select USE_GENERIC_SMP_HELPERS
  526. ---help---
  527. This enables support for systems with more than one CPU. If you have
  528. a system with only one CPU, like most personal computers, say N. If
  529. you have a system with more than one CPU, say Y.
  530. If you say N here, the kernel will run on single and multiprocessor
  531. machines, but will use only one CPU of a multiprocessor machine. If
  532. you say Y here, the kernel will run on many, but not all,
  533. singleprocessor machines. On a singleprocessor machine, the kernel
  534. will run faster if you say N here.
  535. People using multiprocessor machines who say Y here should also say
  536. Y to "Enhanced Real Time Clock Support", below.
  537. See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
  538. available at <http://www.tldp.org/docs.html#howto>.
  539. If you don't know what to do here, say N.
  540. config NR_CPUS
  541. int "Maximum number of CPUs (2-32)"
  542. range 2 32
  543. depends on SMP
  544. default "4" if CPU_SUBTYPE_SHX3
  545. default "2"
  546. help
  547. This allows you to specify the maximum number of CPUs which this
  548. kernel will support. The maximum supported value is 32 and the
  549. minimum value which makes sense is 2.
  550. This is purely to save memory - each supported CPU adds
  551. approximately eight kilobytes to the kernel image.
  552. source "kernel/Kconfig.preempt"
  553. config GUSA
  554. def_bool y
  555. depends on !SMP && SUPERH32
  556. help
  557. This enables support for gUSA (general UserSpace Atomicity).
  558. This is the default implementation for both UP and non-ll/sc
  559. CPUs, and is used by the libc, amongst others.
  560. For additional information, design information can be found
  561. in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>.
  562. This should only be disabled for special cases where alternate
  563. atomicity implementations exist.
  564. config GUSA_RB
  565. bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)"
  566. depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A)
  567. help
  568. Enabling this option will allow the kernel to implement some
  569. atomic operations using a software implementation of load-locked/
  570. store-conditional (LLSC). On machines which do not have hardware
  571. LLSC, this should be more efficient than the other alternative of
  572. disabling interrupts around the atomic sequence.
  573. config SPARSE_IRQ
  574. bool "Support sparse irq numbering"
  575. depends on EXPERIMENTAL
  576. help
  577. This enables support for sparse irqs. This is useful in general
  578. as most CPUs have a fairly sparse array of IRQ vectors, which
  579. the irq_desc then maps directly on to. Systems with a high
  580. number of off-chip IRQs will want to treat this as
  581. experimental until they have been independently verified.
  582. If you don't know what to do here, say N.
  583. endmenu
  584. menu "Boot options"
  585. config ZERO_PAGE_OFFSET
  586. hex
  587. default "0x00010000" if PAGE_SIZE_64KB || SH_RTS7751R2D || \
  588. SH_7751_SOLUTION_ENGINE
  589. default "0x00004000" if PAGE_SIZE_16KB || SH_SH03
  590. default "0x00002000" if PAGE_SIZE_8KB
  591. default "0x00001000"
  592. help
  593. This sets the default offset of zero page.
  594. config BOOT_LINK_OFFSET
  595. hex
  596. default "0x00210000" if SH_SHMIN
  597. default "0x00400000" if SH_CAYMAN
  598. default "0x00810000" if SH_7780_SOLUTION_ENGINE
  599. default "0x009e0000" if SH_TITAN
  600. default "0x01800000" if SH_SDK7780
  601. default "0x02000000" if SH_EDOSK7760
  602. default "0x00800000"
  603. help
  604. This option allows you to set the link address offset of the zImage.
  605. This can be useful if you are on a board which has a small amount of
  606. memory.
  607. config ENTRY_OFFSET
  608. hex
  609. default "0x00001000" if PAGE_SIZE_4KB
  610. default "0x00002000" if PAGE_SIZE_8KB
  611. default "0x00004000" if PAGE_SIZE_16KB
  612. default "0x00010000" if PAGE_SIZE_64KB
  613. default "0x00000000"
  614. choice
  615. prompt "Kernel command line"
  616. optional
  617. default CMDLINE_OVERWRITE
  618. help
  619. Setting this option allows the kernel command line arguments
  620. to be set.
  621. config CMDLINE_OVERWRITE
  622. bool "Overwrite bootloader kernel arguments"
  623. help
  624. Given string will overwrite any arguments passed in by
  625. a bootloader.
  626. config CMDLINE_EXTEND
  627. bool "Extend bootloader kernel arguments"
  628. help
  629. Given string will be concatenated with arguments passed in
  630. by a bootloader.
  631. endchoice
  632. config CMDLINE
  633. string "Kernel command line arguments string"
  634. depends on CMDLINE_OVERWRITE || CMDLINE_EXTEND
  635. default "console=ttySC1,115200"
  636. endmenu
  637. menu "Bus options"
  638. config SUPERHYWAY
  639. tristate "SuperHyway Bus support"
  640. depends on CPU_SUBTYPE_SH4_202
  641. config MAPLE
  642. bool "Maple Bus support"
  643. depends on SH_DREAMCAST
  644. help
  645. The Maple Bus is SEGA's serial communication bus for peripherals
  646. on the Dreamcast. Without this bus support you won't be able to
  647. get your Dreamcast keyboard etc to work, so most users
  648. probably want to say 'Y' here, unless you are only using the
  649. Dreamcast with a serial line terminal or a remote network
  650. connection.
  651. config PCI
  652. bool "PCI support"
  653. depends on SYS_SUPPORTS_PCI
  654. help
  655. Find out whether you have a PCI motherboard. PCI is the name of a
  656. bus system, i.e. the way the CPU talks to the other stuff inside
  657. your box. If you have PCI, say Y, otherwise N.
  658. source "drivers/pci/pcie/Kconfig"
  659. source "drivers/pci/Kconfig"
  660. source "drivers/pcmcia/Kconfig"
  661. source "drivers/pci/hotplug/Kconfig"
  662. endmenu
  663. menu "Executable file formats"
  664. source "fs/Kconfig.binfmt"
  665. endmenu
  666. menu "Power management options (EXPERIMENTAL)"
  667. depends on EXPERIMENTAL
  668. source "kernel/power/Kconfig"
  669. source "drivers/cpuidle/Kconfig"
  670. endmenu
  671. source "net/Kconfig"
  672. source "drivers/Kconfig"
  673. source "fs/Kconfig"
  674. source "arch/sh/Kconfig.debug"
  675. source "security/Kconfig"
  676. source "crypto/Kconfig"
  677. source "lib/Kconfig"