Kconfig 7.7 KB

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  1. # For a description of the syntax of this configuration file,
  2. # see Documentation/kbuild/kconfig-language.txt.
  3. #
  4. mainmenu "Linux/SPARC Kernel Configuration"
  5. config MMU
  6. bool
  7. default y
  8. config HIGHMEM
  9. bool
  10. default y
  11. config ZONE_DMA
  12. bool
  13. default y
  14. config GENERIC_ISA_DMA
  15. bool
  16. default y
  17. config GENERIC_GPIO
  18. bool
  19. help
  20. Generic GPIO API support
  21. config ARCH_NO_VIRT_TO_BUS
  22. def_bool y
  23. config OF
  24. def_bool y
  25. config HZ
  26. int
  27. default 100
  28. source "init/Kconfig"
  29. menu "General machine setup"
  30. config SMP
  31. bool "Symmetric multi-processing support (does not work on sun4/sun4c)"
  32. ---help---
  33. This enables support for systems with more than one CPU. If you have
  34. a system with only one CPU, say N. If you have a system with more
  35. than one CPU, say Y.
  36. If you say N here, the kernel will run on single and multiprocessor
  37. machines, but will use only one CPU of a multiprocessor machine. If
  38. you say Y here, the kernel will run on many, but not all,
  39. singleprocessor machines. On a singleprocessor machine, the kernel
  40. will run faster if you say N here.
  41. People using multiprocessor machines who say Y here should also say
  42. Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
  43. Management" code will be disabled if you say Y here.
  44. See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
  45. available at <http://www.tldp.org/docs.html#howto>.
  46. If you don't know what to do here, say N.
  47. config NR_CPUS
  48. int "Maximum number of CPUs (2-32)"
  49. range 2 32
  50. depends on SMP
  51. default "32"
  52. config SPARC
  53. bool
  54. default y
  55. select HAVE_IDE
  56. select HAVE_OPROFILE
  57. select HAVE_ARCH_KGDB if !SMP
  58. select HAVE_ARCH_TRACEHOOK
  59. select ARCH_WANT_OPTIONAL_GPIOLIB
  60. select RTC_CLASS
  61. select RTC_DRV_M48T59
  62. # Identify this as a Sparc32 build
  63. config SPARC32
  64. bool
  65. default y
  66. help
  67. SPARC is a family of RISC microprocessors designed and marketed by
  68. Sun Microsystems, incorporated. They are very widely found in Sun
  69. workstations and clones. This port covers the original 32-bit SPARC;
  70. it is old and stable and usually considered one of the "big three"
  71. along with the Intel and Alpha ports. The UltraLinux project
  72. maintains both the SPARC32 and SPARC64 ports; its web page is
  73. available at <http://www.ultralinux.org/>.
  74. # Global things across all Sun machines.
  75. config ISA
  76. bool
  77. help
  78. ISA is found on Espresso only and is not supported currently.
  79. Say N
  80. config EISA
  81. bool
  82. help
  83. EISA is not supported.
  84. Say N
  85. config MCA
  86. bool
  87. help
  88. MCA is not supported.
  89. Say N
  90. config PCMCIA
  91. tristate
  92. ---help---
  93. Say Y here if you want to attach PCMCIA- or PC-cards to your Linux
  94. computer. These are credit-card size devices such as network cards,
  95. modems or hard drives often used with laptops computers. There are
  96. actually two varieties of these cards: the older 16 bit PCMCIA cards
  97. and the newer 32 bit CardBus cards. If you want to use CardBus
  98. cards, you need to say Y here and also to "CardBus support" below.
  99. To use your PC-cards, you will need supporting software from David
  100. Hinds' pcmcia-cs package (see the file <file:Documentation/Changes>
  101. for location). Please also read the PCMCIA-HOWTO, available from
  102. <http://www.tldp.org/docs.html#howto>.
  103. To compile this driver as modules, choose M here: the
  104. modules will be called pcmcia_core and ds.
  105. config SBUS
  106. bool
  107. default y
  108. config SBUSCHAR
  109. bool
  110. default y
  111. config SERIAL_CONSOLE
  112. bool
  113. default y
  114. ---help---
  115. If you say Y here, it will be possible to use a serial port as the
  116. system console (the system console is the device which receives all
  117. kernel messages and warnings and which allows logins in single user
  118. mode). This could be useful if some terminal or printer is connected
  119. to that serial port.
  120. Even if you say Y here, the currently visible virtual console
  121. (/dev/tty0) will still be used as the system console by default, but
  122. you can alter that using a kernel command line option such as
  123. "console=ttyS1". (Try "man bootparam" or see the documentation of
  124. your boot loader (silo) about how to pass options to the kernel at
  125. boot time.)
  126. If you don't have a graphics card installed and you say Y here, the
  127. kernel will automatically use the first serial line, /dev/ttyS0, as
  128. system console.
  129. If unsure, say N.
  130. config SUN_AUXIO
  131. bool
  132. default y
  133. config SUN_IO
  134. bool
  135. default y
  136. config RWSEM_GENERIC_SPINLOCK
  137. bool
  138. default y
  139. config RWSEM_XCHGADD_ALGORITHM
  140. bool
  141. config GENERIC_FIND_NEXT_BIT
  142. bool
  143. default y
  144. config GENERIC_HWEIGHT
  145. bool
  146. default y
  147. config GENERIC_CALIBRATE_DELAY
  148. bool
  149. default y
  150. config ARCH_MAY_HAVE_PC_FDC
  151. bool
  152. default y
  153. config ARCH_HAS_ILOG2_U32
  154. bool
  155. default n
  156. config ARCH_HAS_ILOG2_U64
  157. bool
  158. default n
  159. config EMULATED_CMPXCHG
  160. bool
  161. default y
  162. help
  163. Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
  164. is emulated, and therefore it is not completely atomic.
  165. config SUN_PM
  166. bool
  167. default y
  168. help
  169. Enable power management and CPU standby features on supported
  170. SPARC platforms.
  171. config PCI
  172. bool "Support for PCI and PS/2 keyboard/mouse"
  173. help
  174. CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
  175. CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
  176. All of these platforms are extremely obscure, so say N if unsure.
  177. config PCI_SYSCALL
  178. def_bool PCI
  179. source "drivers/pci/Kconfig"
  180. config SUN_OPENPROMFS
  181. tristate "Openprom tree appears in /proc/openprom"
  182. help
  183. If you say Y, the OpenPROM device tree will be available as a
  184. virtual file system, which you can mount to /proc/openprom by "mount
  185. -t openpromfs none /proc/openprom".
  186. To compile the /proc/openprom support as a module, choose M here: the
  187. module will be called openpromfs.
  188. Only choose N if you know in advance that you will not need to modify
  189. OpenPROM settings on the running system.
  190. config SPARC_LED
  191. tristate "Sun4m LED driver"
  192. help
  193. This driver toggles the front-panel LED on sun4m systems
  194. in a user-specifiable manner. Its state can be probed
  195. by reading /proc/led and its blinking mode can be changed
  196. via writes to /proc/led
  197. source "fs/Kconfig.binfmt"
  198. source "mm/Kconfig"
  199. endmenu
  200. source "net/Kconfig"
  201. source "drivers/Kconfig"
  202. source "drivers/sbus/char/Kconfig"
  203. # This one must be before the filesystem configs. -DaveM
  204. menu "Unix98 PTY support"
  205. config UNIX98_PTYS
  206. bool "Unix98 PTY support"
  207. ---help---
  208. A pseudo terminal (PTY) is a software device consisting of two
  209. halves: a master and a slave. The slave device behaves identical to
  210. a physical terminal; the master device is used by a process to
  211. read data from and write data to the slave, thereby emulating a
  212. terminal. Typical programs for the master side are telnet servers
  213. and xterms.
  214. Linux has traditionally used the BSD-like names /dev/ptyxx for
  215. masters and /dev/ttyxx for slaves of pseudo terminals. This scheme
  216. has a number of problems. The GNU C library glibc 2.1 and later,
  217. however, supports the Unix98 naming standard: in order to acquire a
  218. pseudo terminal, a process opens /dev/ptmx; the number of the pseudo
  219. terminal is then made available to the process and the pseudo
  220. terminal slave can be accessed as /dev/pts/<number>. What was
  221. traditionally /dev/ttyp2 will then be /dev/pts/2, for example.
  222. The entries in /dev/pts/ are created on the fly by a virtual
  223. file system; therefore, if you say Y here you should say Y to
  224. "/dev/pts file system for Unix98 PTYs" as well.
  225. If you want to say Y here, you need to have the C library glibc 2.1
  226. or later (equal to libc-6.1, check with "ls -l /lib/libc.so.*").
  227. Read the instructions in <file:Documentation/Changes> pertaining to
  228. pseudo terminals. It's safe to say N.
  229. endmenu
  230. source "fs/Kconfig"
  231. source "arch/sparc/Kconfig.debug"
  232. source "security/Kconfig"
  233. source "crypto/Kconfig"
  234. source "lib/Kconfig"