Kconfig 48 KB

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  1. config MIPS
  2. bool
  3. default y
  4. # Horrible source of confusion. Die, die, die ...
  5. select EMBEDDED
  6. mainmenu "Linux/MIPS Kernel Configuration"
  7. menu "Machine selection"
  8. choice
  9. prompt "System type"
  10. default SGI_IP22
  11. config MIPS_MTX1
  12. bool "4G Systems MTX-1 board"
  13. select DMA_NONCOHERENT
  14. select HW_HAS_PCI
  15. select SOC_AU1500
  16. select SYS_HAS_CPU_MIPS32_R1
  17. select SYS_SUPPORTS_LITTLE_ENDIAN
  18. config MIPS_BOSPORUS
  19. bool "AMD Alchemy Bosporus board"
  20. select SOC_AU1500
  21. select DMA_NONCOHERENT
  22. select SYS_HAS_CPU_MIPS32_R1
  23. select SYS_SUPPORTS_LITTLE_ENDIAN
  24. config MIPS_PB1000
  25. bool "AMD Alchemy PB1000 board"
  26. select SOC_AU1000
  27. select DMA_NONCOHERENT
  28. select HW_HAS_PCI
  29. select SWAP_IO_SPACE
  30. select SYS_HAS_CPU_MIPS32_R1
  31. select SYS_SUPPORTS_LITTLE_ENDIAN
  32. config MIPS_PB1100
  33. bool "AMD Alchemy PB1100 board"
  34. select SOC_AU1100
  35. select DMA_NONCOHERENT
  36. select HW_HAS_PCI
  37. select SWAP_IO_SPACE
  38. select SYS_HAS_CPU_MIPS32_R1
  39. select SYS_SUPPORTS_LITTLE_ENDIAN
  40. config MIPS_PB1500
  41. bool "AMD Alchemy PB1500 board"
  42. select SOC_AU1500
  43. select DMA_NONCOHERENT
  44. select HW_HAS_PCI
  45. select SYS_HAS_CPU_MIPS32_R1
  46. select SYS_SUPPORTS_LITTLE_ENDIAN
  47. config MIPS_PB1550
  48. bool "AMD Alchemy PB1550 board"
  49. select SOC_AU1550
  50. select DMA_NONCOHERENT
  51. select HW_HAS_PCI
  52. select MIPS_DISABLE_OBSOLETE_IDE
  53. select SYS_HAS_CPU_MIPS32_R1
  54. select SYS_SUPPORTS_LITTLE_ENDIAN
  55. config MIPS_PB1200
  56. bool "AMD Alchemy PB1200 board"
  57. select SOC_AU1200
  58. select DMA_NONCOHERENT
  59. select MIPS_DISABLE_OBSOLETE_IDE
  60. select SYS_HAS_CPU_MIPS32_R1
  61. select SYS_SUPPORTS_LITTLE_ENDIAN
  62. config MIPS_DB1000
  63. bool "AMD Alchemy DB1000 board"
  64. select SOC_AU1000
  65. select DMA_NONCOHERENT
  66. select HW_HAS_PCI
  67. select SYS_HAS_CPU_MIPS32_R1
  68. select SYS_SUPPORTS_LITTLE_ENDIAN
  69. config MIPS_DB1100
  70. bool "AMD Alchemy DB1100 board"
  71. select SOC_AU1100
  72. select DMA_NONCOHERENT
  73. select SYS_HAS_CPU_MIPS32_R1
  74. select SYS_SUPPORTS_LITTLE_ENDIAN
  75. config MIPS_DB1500
  76. bool "AMD Alchemy DB1500 board"
  77. select SOC_AU1500
  78. select DMA_NONCOHERENT
  79. select HW_HAS_PCI
  80. select MIPS_DISABLE_OBSOLETE_IDE
  81. select SYS_HAS_CPU_MIPS32_R1
  82. select SYS_SUPPORTS_BIG_ENDIAN
  83. select SYS_SUPPORTS_LITTLE_ENDIAN
  84. config MIPS_DB1550
  85. bool "AMD Alchemy DB1550 board"
  86. select SOC_AU1550
  87. select HW_HAS_PCI
  88. select DMA_NONCOHERENT
  89. select MIPS_DISABLE_OBSOLETE_IDE
  90. select SYS_HAS_CPU_MIPS32_R1
  91. select SYS_SUPPORTS_LITTLE_ENDIAN
  92. config MIPS_DB1200
  93. bool "AMD Alchemy DB1200 board"
  94. select SOC_AU1200
  95. select DMA_COHERENT
  96. select MIPS_DISABLE_OBSOLETE_IDE
  97. select SYS_HAS_CPU_MIPS32_R1
  98. select SYS_SUPPORTS_LITTLE_ENDIAN
  99. config MIPS_MIRAGE
  100. bool "AMD Alchemy Mirage board"
  101. select DMA_NONCOHERENT
  102. select SOC_AU1500
  103. select SYS_HAS_CPU_MIPS32_R1
  104. select SYS_SUPPORTS_LITTLE_ENDIAN
  105. config BASLER_EXCITE
  106. bool "Basler eXcite smart camera support"
  107. select DMA_COHERENT
  108. select HW_HAS_PCI
  109. select IRQ_CPU
  110. select IRQ_CPU_RM7K
  111. select IRQ_CPU_RM9K
  112. select MIPS_RM9122
  113. select SYS_HAS_CPU_RM9000
  114. select SYS_SUPPORTS_32BIT_KERNEL
  115. select SYS_SUPPORTS_64BIT_KERNEL
  116. select SYS_SUPPORTS_BIG_ENDIAN
  117. help
  118. The eXcite is a smart camera platform manufactured by
  119. Basler Vision Technologies AG
  120. config BASLER_EXCITE_PROTOTYPE
  121. bool "Support for pre-release units"
  122. depends on BASLER_EXCITE
  123. default n
  124. help
  125. Pre-series (prototype) units are different from later ones in
  126. some ways. Select this option if you have one of these. Please
  127. note that a kernel built with this option selected will not be
  128. able to run on normal units.
  129. config MIPS_COBALT
  130. bool "Cobalt Server"
  131. select DMA_NONCOHERENT
  132. select HW_HAS_PCI
  133. select I8259
  134. select IRQ_CPU
  135. select MIPS_GT64111
  136. select SYS_HAS_CPU_NEVADA
  137. select SYS_SUPPORTS_32BIT_KERNEL
  138. select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
  139. select SYS_SUPPORTS_LITTLE_ENDIAN
  140. config MACH_DECSTATION
  141. bool "DECstations"
  142. select BOOT_ELF32
  143. select DMA_NONCOHERENT
  144. select EARLY_PRINTK
  145. select IRQ_CPU
  146. select SYS_HAS_CPU_R3000
  147. select SYS_HAS_CPU_R4X00
  148. select SYS_SUPPORTS_32BIT_KERNEL
  149. select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
  150. select SYS_SUPPORTS_LITTLE_ENDIAN
  151. select SYS_SUPPORTS_128HZ
  152. select SYS_SUPPORTS_256HZ
  153. select SYS_SUPPORTS_1024HZ
  154. help
  155. This enables support for DEC's MIPS based workstations. For details
  156. see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
  157. DECstation porting pages on <http://decstation.unix-ag.org/>.
  158. If you have one of the following DECstation Models you definitely
  159. want to choose R4xx0 for the CPU Type:
  160. DECstation 5000/50
  161. DECstation 5000/150
  162. DECstation 5000/260
  163. DECsystem 5900/260
  164. otherwise choose R3000.
  165. config MIPS_EV64120
  166. bool "Galileo EV64120 Evaluation board (EXPERIMENTAL)"
  167. depends on EXPERIMENTAL
  168. select DMA_NONCOHERENT
  169. select HW_HAS_PCI
  170. select MIPS_GT64120
  171. select SYS_HAS_CPU_R5000
  172. select SYS_SUPPORTS_32BIT_KERNEL
  173. select SYS_SUPPORTS_64BIT_KERNEL
  174. select SYS_SUPPORTS_BIG_ENDIAN
  175. help
  176. This is an evaluation board based on the Galileo GT-64120
  177. single-chip system controller that contains a MIPS R5000 compatible
  178. core running at 75/100MHz. Their website is located at
  179. <http://www.marvell.com/>. Say Y here if you wish to build a
  180. kernel for this platform.
  181. config MACH_JAZZ
  182. bool "Jazz family of machines"
  183. select ARC
  184. select ARC32
  185. select ARCH_MAY_HAVE_PC_FDC
  186. select GENERIC_ISA_DMA
  187. select I8253
  188. select I8259
  189. select ISA
  190. select SYS_HAS_CPU_R4X00
  191. select SYS_SUPPORTS_32BIT_KERNEL
  192. select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
  193. select SYS_SUPPORTS_100HZ
  194. help
  195. This a family of machines based on the MIPS R4030 chipset which was
  196. used by several vendors to build RISC/os and Windows NT workstations.
  197. Members include the Acer PICA, MIPS Magnum 4000, MIPS Millenium and
  198. Olivetti M700-10 workstations.
  199. config LASAT
  200. bool "LASAT Networks platforms"
  201. select DMA_NONCOHERENT
  202. select HW_HAS_PCI
  203. select MIPS_GT64120
  204. select MIPS_NILE4
  205. select R5000_CPU_SCACHE
  206. select SYS_HAS_CPU_R5000
  207. select SYS_SUPPORTS_32BIT_KERNEL
  208. select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
  209. select SYS_SUPPORTS_LITTLE_ENDIAN
  210. config MIPS_ATLAS
  211. bool "MIPS Atlas board"
  212. select BOOT_ELF32
  213. select DMA_NONCOHERENT
  214. select IRQ_CPU
  215. select HW_HAS_PCI
  216. select MIPS_BOARDS_GEN
  217. select MIPS_BONITO64
  218. select MIPS_GT64120
  219. select MIPS_MSC
  220. select RM7000_CPU_SCACHE
  221. select SWAP_IO_SPACE
  222. select SYS_HAS_CPU_MIPS32_R1
  223. select SYS_HAS_CPU_MIPS32_R2
  224. select SYS_HAS_CPU_MIPS64_R1
  225. select SYS_HAS_CPU_NEVADA
  226. select SYS_HAS_CPU_RM7000
  227. select SYS_SUPPORTS_32BIT_KERNEL
  228. select SYS_SUPPORTS_64BIT_KERNEL
  229. select SYS_SUPPORTS_BIG_ENDIAN
  230. select SYS_SUPPORTS_LITTLE_ENDIAN
  231. select SYS_SUPPORTS_MULTITHREADING if EXPERIMENTAL
  232. help
  233. This enables support for the MIPS Technologies Atlas evaluation
  234. board.
  235. config MIPS_MALTA
  236. bool "MIPS Malta board"
  237. select ARCH_MAY_HAVE_PC_FDC
  238. select BOOT_ELF32
  239. select HAVE_STD_PC_SERIAL_PORT
  240. select DMA_NONCOHERENT
  241. select IRQ_CPU
  242. select GENERIC_ISA_DMA
  243. select HW_HAS_PCI
  244. select I8259
  245. select MIPS_BOARDS_GEN
  246. select MIPS_BONITO64
  247. select MIPS_CPU_SCACHE
  248. select MIPS_GT64120
  249. select MIPS_MSC
  250. select SWAP_IO_SPACE
  251. select SYS_HAS_CPU_MIPS32_R1
  252. select SYS_HAS_CPU_MIPS32_R2
  253. select SYS_HAS_CPU_MIPS64_R1
  254. select SYS_HAS_CPU_NEVADA
  255. select SYS_HAS_CPU_RM7000
  256. select SYS_SUPPORTS_32BIT_KERNEL
  257. select SYS_SUPPORTS_64BIT_KERNEL
  258. select SYS_SUPPORTS_BIG_ENDIAN
  259. select SYS_SUPPORTS_LITTLE_ENDIAN
  260. select SYS_SUPPORTS_MULTITHREADING
  261. help
  262. This enables support for the MIPS Technologies Malta evaluation
  263. board.
  264. config MIPS_SEAD
  265. bool "MIPS SEAD board (EXPERIMENTAL)"
  266. depends on EXPERIMENTAL
  267. select IRQ_CPU
  268. select DMA_NONCOHERENT
  269. select MIPS_BOARDS_GEN
  270. select SYS_HAS_CPU_MIPS32_R1
  271. select SYS_HAS_CPU_MIPS32_R2
  272. select SYS_HAS_CPU_MIPS64_R1
  273. select SYS_SUPPORTS_32BIT_KERNEL
  274. select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
  275. select SYS_SUPPORTS_BIG_ENDIAN
  276. select SYS_SUPPORTS_LITTLE_ENDIAN
  277. help
  278. This enables support for the MIPS Technologies SEAD evaluation
  279. board.
  280. config WR_PPMC
  281. bool "Wind River PPMC board"
  282. select IRQ_CPU
  283. select BOOT_ELF32
  284. select DMA_NONCOHERENT
  285. select HW_HAS_PCI
  286. select MIPS_GT64120
  287. select SWAP_IO_SPACE
  288. select SYS_HAS_CPU_MIPS32_R1
  289. select SYS_HAS_CPU_MIPS32_R2
  290. select SYS_HAS_CPU_MIPS64_R1
  291. select SYS_HAS_CPU_NEVADA
  292. select SYS_HAS_CPU_RM7000
  293. select SYS_SUPPORTS_32BIT_KERNEL
  294. select SYS_SUPPORTS_64BIT_KERNEL
  295. select SYS_SUPPORTS_BIG_ENDIAN
  296. select SYS_SUPPORTS_LITTLE_ENDIAN
  297. help
  298. This enables support for the Wind River MIPS32 4KC PPMC evaluation
  299. board, which is based on GT64120 bridge chip.
  300. config MIPS_SIM
  301. bool 'MIPS simulator (MIPSsim)'
  302. select DMA_NONCOHERENT
  303. select IRQ_CPU
  304. select SYS_HAS_CPU_MIPS32_R1
  305. select SYS_HAS_CPU_MIPS32_R2
  306. select SYS_SUPPORTS_32BIT_KERNEL
  307. select SYS_SUPPORTS_BIG_ENDIAN
  308. select SYS_SUPPORTS_LITTLE_ENDIAN
  309. help
  310. This option enables support for MIPS Technologies MIPSsim software
  311. emulator.
  312. config MOMENCO_JAGUAR_ATX
  313. bool "Momentum Jaguar board"
  314. select BOOT_ELF32
  315. select DMA_NONCOHERENT
  316. select HW_HAS_PCI
  317. select IRQ_CPU
  318. select IRQ_CPU_RM7K
  319. select IRQ_MV64340
  320. select LIMITED_DMA
  321. select PCI_MARVELL
  322. select RM7000_CPU_SCACHE
  323. select SWAP_IO_SPACE
  324. select SYS_HAS_CPU_RM9000
  325. select SYS_SUPPORTS_32BIT_KERNEL
  326. select SYS_SUPPORTS_64BIT_KERNEL
  327. select SYS_SUPPORTS_BIG_ENDIAN
  328. help
  329. The Jaguar ATX is a MIPS-based Single Board Computer (SBC) made by
  330. Momentum Computer <http://www.momenco.com/>.
  331. config MOMENCO_OCELOT
  332. bool "Momentum Ocelot board"
  333. select DMA_NONCOHERENT
  334. select HW_HAS_PCI
  335. select IRQ_CPU
  336. select IRQ_CPU_RM7K
  337. select MIPS_GT64120
  338. select RM7000_CPU_SCACHE
  339. select SWAP_IO_SPACE
  340. select SYS_HAS_CPU_RM7000
  341. select SYS_SUPPORTS_32BIT_KERNEL
  342. select SYS_SUPPORTS_64BIT_KERNEL
  343. select SYS_SUPPORTS_BIG_ENDIAN
  344. help
  345. The Ocelot is a MIPS-based Single Board Computer (SBC) made by
  346. Momentum Computer <http://www.momenco.com/>.
  347. config MOMENCO_OCELOT_3
  348. bool "Momentum Ocelot-3 board"
  349. select BOOT_ELF32
  350. select DMA_NONCOHERENT
  351. select HW_HAS_PCI
  352. select IRQ_CPU
  353. select IRQ_CPU_RM7K
  354. select IRQ_MV64340
  355. select PCI_MARVELL
  356. select RM7000_CPU_SCACHE
  357. select SWAP_IO_SPACE
  358. select SYS_HAS_CPU_RM9000
  359. select SYS_SUPPORTS_32BIT_KERNEL
  360. select SYS_SUPPORTS_64BIT_KERNEL
  361. select SYS_SUPPORTS_BIG_ENDIAN
  362. help
  363. The Ocelot-3 is based off Discovery III System Controller and
  364. PMC-Sierra Rm79000 core.
  365. config MOMENCO_OCELOT_C
  366. bool "Momentum Ocelot-C board"
  367. select DMA_NONCOHERENT
  368. select HW_HAS_PCI
  369. select IRQ_CPU
  370. select IRQ_MV64340
  371. select PCI_MARVELL
  372. select RM7000_CPU_SCACHE
  373. select SWAP_IO_SPACE
  374. select SYS_HAS_CPU_RM7000
  375. select SYS_SUPPORTS_32BIT_KERNEL
  376. select SYS_SUPPORTS_64BIT_KERNEL
  377. select SYS_SUPPORTS_BIG_ENDIAN
  378. help
  379. The Ocelot is a MIPS-based Single Board Computer (SBC) made by
  380. Momentum Computer <http://www.momenco.com/>.
  381. config MOMENCO_OCELOT_G
  382. bool "Momentum Ocelot-G board"
  383. select DMA_NONCOHERENT
  384. select HW_HAS_PCI
  385. select IRQ_CPU
  386. select IRQ_CPU_RM7K
  387. select PCI_MARVELL
  388. select RM7000_CPU_SCACHE
  389. select SWAP_IO_SPACE
  390. select SYS_HAS_CPU_RM7000
  391. select SYS_SUPPORTS_32BIT_KERNEL
  392. select SYS_SUPPORTS_64BIT_KERNEL
  393. select SYS_SUPPORTS_BIG_ENDIAN
  394. select ARCH_SPARSEMEM_ENABLE
  395. help
  396. The Ocelot is a MIPS-based Single Board Computer (SBC) made by
  397. Momentum Computer <http://www.momenco.com/>.
  398. config MIPS_XXS1500
  399. bool "MyCable XXS1500 board"
  400. select DMA_NONCOHERENT
  401. select SOC_AU1500
  402. select SYS_SUPPORTS_LITTLE_ENDIAN
  403. config PNX8550_V2PCI
  404. bool "Philips PNX8550 based Viper2-PCI board"
  405. depends on BROKEN
  406. select PNX8550
  407. select SYS_SUPPORTS_LITTLE_ENDIAN
  408. config PNX8550_JBS
  409. bool "Philips PNX8550 based JBS board"
  410. depends on BROKEN
  411. select PNX8550
  412. select SYS_SUPPORTS_LITTLE_ENDIAN
  413. config DDB5477
  414. bool "NEC DDB Vrc-5477"
  415. select DDB5XXX_COMMON
  416. select DMA_NONCOHERENT
  417. select HW_HAS_PCI
  418. select I8259
  419. select IRQ_CPU
  420. select SYS_HAS_CPU_R5432
  421. select SYS_SUPPORTS_32BIT_KERNEL
  422. select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
  423. select SYS_SUPPORTS_LITTLE_ENDIAN
  424. help
  425. This enables support for the R5432-based NEC DDB Vrc-5477,
  426. or Rockhopper/SolutionGear boards with R5432/R5500 CPUs.
  427. Features : kernel debugging, serial terminal, NFS root fs, on-board
  428. ether port USB, AC97, PCI, etc.
  429. config MACH_VR41XX
  430. bool "NEC VR41XX-based machines"
  431. select SYS_HAS_CPU_VR41XX
  432. select SYS_SUPPORTS_32BIT_KERNEL
  433. select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
  434. config PMC_YOSEMITE
  435. bool "PMC-Sierra Yosemite eval board"
  436. select DMA_COHERENT
  437. select HW_HAS_PCI
  438. select IRQ_CPU
  439. select IRQ_CPU_RM7K
  440. select IRQ_CPU_RM9K
  441. select SWAP_IO_SPACE
  442. select SYS_HAS_CPU_RM9000
  443. select SYS_SUPPORTS_32BIT_KERNEL
  444. select SYS_SUPPORTS_64BIT_KERNEL
  445. select SYS_SUPPORTS_BIG_ENDIAN
  446. select SYS_SUPPORTS_HIGHMEM
  447. select SYS_SUPPORTS_SMP
  448. help
  449. Yosemite is an evaluation board for the RM9000x2 processor
  450. manufactured by PMC-Sierra.
  451. config QEMU
  452. bool "Qemu"
  453. select DMA_COHERENT
  454. select GENERIC_ISA_DMA
  455. select HAVE_STD_PC_SERIAL_PORT
  456. select I8253
  457. select I8259
  458. select ISA
  459. select SWAP_IO_SPACE
  460. select SYS_HAS_CPU_MIPS32_R1
  461. select SYS_SUPPORTS_32BIT_KERNEL
  462. select SYS_SUPPORTS_BIG_ENDIAN
  463. select SYS_SUPPORTS_LITTLE_ENDIAN
  464. select ARCH_SPARSEMEM_ENABLE
  465. help
  466. Qemu is a software emulator which among other architectures also
  467. can simulate a MIPS32 4Kc system. This patch adds support for the
  468. system architecture that currently is being simulated by Qemu. It
  469. will eventually be removed again when Qemu has the capability to
  470. simulate actual MIPS hardware platforms. More information on Qemu
  471. can be found at http://www.linux-mips.org/wiki/Qemu.
  472. config MARKEINS
  473. bool "Support for NEC EMMA2RH Mark-eins"
  474. select DMA_NONCOHERENT
  475. select HW_HAS_PCI
  476. select IRQ_CPU
  477. select SWAP_IO_SPACE
  478. select SYS_SUPPORTS_32BIT_KERNEL
  479. select SYS_SUPPORTS_BIG_ENDIAN
  480. select SYS_SUPPORTS_LITTLE_ENDIAN
  481. select SYS_HAS_CPU_R5000
  482. help
  483. This enables support for the R5432-based NEC Mark-eins
  484. boards with R5500 CPU.
  485. config SGI_IP22
  486. bool "SGI IP22 (Indy/Indigo2)"
  487. select ARC
  488. select ARC32
  489. select BOOT_ELF32
  490. select DMA_NONCOHERENT
  491. select HW_HAS_EISA
  492. select IP22_CPU_SCACHE
  493. select IRQ_CPU
  494. select NO_ISA if ISA
  495. select SWAP_IO_SPACE
  496. select SYS_HAS_CPU_R4X00
  497. select SYS_HAS_CPU_R5000
  498. select SYS_SUPPORTS_32BIT_KERNEL
  499. select SYS_SUPPORTS_64BIT_KERNEL
  500. select SYS_SUPPORTS_BIG_ENDIAN
  501. help
  502. This are the SGI Indy, Challenge S and Indigo2, as well as certain
  503. OEM variants like the Tandem CMN B006S. To compile a Linux kernel
  504. that runs on these, say Y here.
  505. config SGI_IP27
  506. bool "SGI IP27 (Origin200/2000)"
  507. select ARC
  508. select ARC64
  509. select BOOT_ELF64
  510. select DMA_IP27
  511. select EARLY_PRINTK
  512. select HW_HAS_PCI
  513. select PCI_DOMAINS
  514. select SYS_HAS_CPU_R10000
  515. select SYS_SUPPORTS_64BIT_KERNEL
  516. select SYS_SUPPORTS_BIG_ENDIAN
  517. select SYS_SUPPORTS_NUMA
  518. help
  519. This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
  520. workstations. To compile a Linux kernel that runs on these, say Y
  521. here.
  522. config SGI_IP32
  523. bool "SGI IP32 (O2) (EXPERIMENTAL)"
  524. depends on EXPERIMENTAL
  525. select ARC
  526. select ARC32
  527. select BOOT_ELF32
  528. select OWN_DMA
  529. select DMA_IP32
  530. select DMA_NONCOHERENT
  531. select HW_HAS_PCI
  532. select R5000_CPU_SCACHE
  533. select RM7000_CPU_SCACHE
  534. select SYS_HAS_CPU_R5000
  535. select SYS_HAS_CPU_R10000 if BROKEN
  536. select SYS_HAS_CPU_RM7000
  537. select SYS_HAS_CPU_NEVADA
  538. select SYS_SUPPORTS_64BIT_KERNEL
  539. select SYS_SUPPORTS_BIG_ENDIAN
  540. help
  541. If you want this kernel to run on SGI O2 workstation, say Y here.
  542. config SIBYTE_BIGSUR
  543. bool "Sibyte BCM91480B-BigSur"
  544. select BOOT_ELF32
  545. select DMA_COHERENT
  546. select PCI_DOMAINS
  547. select SIBYTE_BCM1x80
  548. select SWAP_IO_SPACE
  549. select SYS_HAS_CPU_SB1
  550. select SYS_SUPPORTS_BIG_ENDIAN
  551. select SYS_SUPPORTS_LITTLE_ENDIAN
  552. config SIBYTE_SWARM
  553. bool "Sibyte BCM91250A-SWARM"
  554. select BOOT_ELF32
  555. select DMA_COHERENT
  556. select SIBYTE_SB1250
  557. select SWAP_IO_SPACE
  558. select SYS_HAS_CPU_SB1
  559. select SYS_SUPPORTS_BIG_ENDIAN
  560. select SYS_SUPPORTS_HIGHMEM
  561. select SYS_SUPPORTS_LITTLE_ENDIAN
  562. config SIBYTE_SENTOSA
  563. bool "Sibyte BCM91250E-Sentosa"
  564. depends on EXPERIMENTAL
  565. select BOOT_ELF32
  566. select DMA_COHERENT
  567. select SIBYTE_SB1250
  568. select SWAP_IO_SPACE
  569. select SYS_HAS_CPU_SB1
  570. select SYS_SUPPORTS_BIG_ENDIAN
  571. select SYS_SUPPORTS_LITTLE_ENDIAN
  572. config SIBYTE_RHONE
  573. bool "Sibyte BCM91125E-Rhone"
  574. depends on EXPERIMENTAL
  575. select BOOT_ELF32
  576. select DMA_COHERENT
  577. select SIBYTE_BCM1125H
  578. select SWAP_IO_SPACE
  579. select SYS_HAS_CPU_SB1
  580. select SYS_SUPPORTS_BIG_ENDIAN
  581. select SYS_SUPPORTS_LITTLE_ENDIAN
  582. config SIBYTE_CARMEL
  583. bool "Sibyte BCM91120x-Carmel"
  584. depends on EXPERIMENTAL
  585. select BOOT_ELF32
  586. select DMA_COHERENT
  587. select SIBYTE_BCM1120
  588. select SWAP_IO_SPACE
  589. select SYS_HAS_CPU_SB1
  590. select SYS_SUPPORTS_BIG_ENDIAN
  591. select SYS_SUPPORTS_LITTLE_ENDIAN
  592. config SIBYTE_PTSWARM
  593. bool "Sibyte BCM91250PT-PTSWARM"
  594. depends on EXPERIMENTAL
  595. select BOOT_ELF32
  596. select DMA_COHERENT
  597. select SIBYTE_SB1250
  598. select SWAP_IO_SPACE
  599. select SYS_HAS_CPU_SB1
  600. select SYS_SUPPORTS_BIG_ENDIAN
  601. select SYS_SUPPORTS_HIGHMEM
  602. select SYS_SUPPORTS_LITTLE_ENDIAN
  603. config SIBYTE_LITTLESUR
  604. bool "Sibyte BCM91250C2-LittleSur"
  605. depends on EXPERIMENTAL
  606. select BOOT_ELF32
  607. select DMA_COHERENT
  608. select SIBYTE_SB1250
  609. select SWAP_IO_SPACE
  610. select SYS_HAS_CPU_SB1
  611. select SYS_SUPPORTS_BIG_ENDIAN
  612. select SYS_SUPPORTS_HIGHMEM
  613. select SYS_SUPPORTS_LITTLE_ENDIAN
  614. config SIBYTE_CRHINE
  615. bool "Sibyte BCM91120C-CRhine"
  616. depends on EXPERIMENTAL
  617. select BOOT_ELF32
  618. select DMA_COHERENT
  619. select SIBYTE_BCM1120
  620. select SWAP_IO_SPACE
  621. select SYS_HAS_CPU_SB1
  622. select SYS_SUPPORTS_BIG_ENDIAN
  623. select SYS_SUPPORTS_LITTLE_ENDIAN
  624. config SIBYTE_CRHONE
  625. bool "Sibyte BCM91125C-CRhone"
  626. depends on EXPERIMENTAL
  627. select BOOT_ELF32
  628. select DMA_COHERENT
  629. select SIBYTE_BCM1125
  630. select SWAP_IO_SPACE
  631. select SYS_HAS_CPU_SB1
  632. select SYS_SUPPORTS_BIG_ENDIAN
  633. select SYS_SUPPORTS_HIGHMEM
  634. select SYS_SUPPORTS_LITTLE_ENDIAN
  635. config SNI_RM200_PCI
  636. bool "SNI RM200 PCI"
  637. select ARC if CPU_LITTLE_ENDIAN
  638. select ARC32 if CPU_LITTLE_ENDIAN
  639. select ARCH_MAY_HAVE_PC_FDC
  640. select BOOT_ELF32
  641. select DMA_NONCOHERENT
  642. select GENERIC_ISA_DMA
  643. select HAVE_STD_PC_SERIAL_PORT
  644. select HW_HAS_EISA
  645. select HW_HAS_PCI
  646. select I8253
  647. select I8259
  648. select ISA
  649. select SWAP_IO_SPACE if CPU_BIG_ENDIAN
  650. select SYS_HAS_CPU_R4X00
  651. select SYS_HAS_CPU_R5000
  652. select R5000_CPU_SCACHE
  653. select SYS_SUPPORTS_32BIT_KERNEL
  654. select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
  655. select SYS_SUPPORTS_BIG_ENDIAN
  656. select SYS_SUPPORTS_HIGHMEM
  657. select SYS_SUPPORTS_LITTLE_ENDIAN
  658. help
  659. The SNI RM200 PCI was a MIPS-based platform manufactured by Siemens
  660. Nixdorf Informationssysteme (SNI), parent company of Pyramid
  661. Technology and now in turn merged with Fujitsu. Say Y here to
  662. support this machine type.
  663. config TOSHIBA_JMR3927
  664. bool "Toshiba JMR-TX3927 board"
  665. select DMA_NONCOHERENT
  666. select HW_HAS_PCI
  667. select MIPS_TX3927
  668. select SWAP_IO_SPACE
  669. select SYS_HAS_CPU_TX39XX
  670. select SYS_SUPPORTS_32BIT_KERNEL
  671. select SYS_SUPPORTS_BIG_ENDIAN
  672. select TOSHIBA_BOARDS
  673. config TOSHIBA_RBTX4927
  674. bool "Toshiba TBTX49[23]7 board"
  675. select DMA_NONCOHERENT
  676. select HAS_TXX9_SERIAL
  677. select HW_HAS_PCI
  678. select I8259
  679. select ISA
  680. select SWAP_IO_SPACE
  681. select SYS_HAS_CPU_TX49XX
  682. select SYS_SUPPORTS_32BIT_KERNEL
  683. select SYS_SUPPORTS_64BIT_KERNEL
  684. select SYS_SUPPORTS_BIG_ENDIAN
  685. select TOSHIBA_BOARDS
  686. help
  687. This Toshiba board is based on the TX4927 processor. Say Y here to
  688. support this machine type
  689. config TOSHIBA_RBTX4938
  690. bool "Toshiba RBTX4938 board"
  691. select HAVE_STD_PC_SERIAL_PORT
  692. select DMA_NONCOHERENT
  693. select GENERIC_ISA_DMA
  694. select HAS_TXX9_SERIAL
  695. select HW_HAS_PCI
  696. select I8259
  697. select ISA
  698. select SWAP_IO_SPACE
  699. select SYS_HAS_CPU_TX49XX
  700. select SYS_SUPPORTS_32BIT_KERNEL
  701. select SYS_SUPPORTS_LITTLE_ENDIAN
  702. select SYS_SUPPORTS_BIG_ENDIAN
  703. select TOSHIBA_BOARDS
  704. help
  705. This Toshiba board is based on the TX4938 processor. Say Y here to
  706. support this machine type
  707. endchoice
  708. source "arch/mips/ddb5xxx/Kconfig"
  709. source "arch/mips/gt64120/ev64120/Kconfig"
  710. source "arch/mips/jazz/Kconfig"
  711. source "arch/mips/lasat/Kconfig"
  712. source "arch/mips/momentum/Kconfig"
  713. source "arch/mips/pmc-sierra/Kconfig"
  714. source "arch/mips/sgi-ip27/Kconfig"
  715. source "arch/mips/sibyte/Kconfig"
  716. source "arch/mips/tx4927/Kconfig"
  717. source "arch/mips/tx4938/Kconfig"
  718. source "arch/mips/vr41xx/Kconfig"
  719. source "arch/mips/philips/pnx8550/common/Kconfig"
  720. source "arch/mips/cobalt/Kconfig"
  721. endmenu
  722. config RWSEM_GENERIC_SPINLOCK
  723. bool
  724. default y
  725. config RWSEM_XCHGADD_ALGORITHM
  726. bool
  727. config GENERIC_FIND_NEXT_BIT
  728. bool
  729. default y
  730. config GENERIC_HWEIGHT
  731. bool
  732. default y
  733. config GENERIC_CALIBRATE_DELAY
  734. bool
  735. default y
  736. config SCHED_NO_NO_OMIT_FRAME_POINTER
  737. bool
  738. default y
  739. #
  740. # Select some configuration options automatically based on user selections.
  741. #
  742. config ARC
  743. bool
  744. config ARCH_MAY_HAVE_PC_FDC
  745. bool
  746. config DMA_COHERENT
  747. bool
  748. config DMA_IP27
  749. bool
  750. config DMA_IP32
  751. bool
  752. select DMA_NEED_PCI_MAP_STATE
  753. config DMA_NONCOHERENT
  754. bool
  755. select DMA_NEED_PCI_MAP_STATE
  756. config DMA_NEED_PCI_MAP_STATE
  757. bool
  758. config OWN_DMA
  759. bool
  760. config EARLY_PRINTK
  761. bool
  762. config GENERIC_ISA_DMA
  763. bool
  764. config I8259
  765. bool
  766. config LIMITED_DMA
  767. bool
  768. select HIGHMEM
  769. select SYS_SUPPORTS_HIGHMEM
  770. config MIPS_BONITO64
  771. bool
  772. config MIPS_MSC
  773. bool
  774. config MIPS_NILE4
  775. bool
  776. config MIPS_DISABLE_OBSOLETE_IDE
  777. bool
  778. #
  779. # Endianess selection. Suffiently obscure so many users don't know what to
  780. # answer,so we try hard to limit the available choices. Also the use of a
  781. # choice statement should be more obvious to the user.
  782. #
  783. choice
  784. prompt "Endianess selection"
  785. help
  786. Some MIPS machines can be configured for either little or big endian
  787. byte order. These modes require different kernels and a different
  788. Linux distribution. In general there is one prefered byteorder for a
  789. particular system but some systems are just as commonly used in the
  790. one or the other endianess.
  791. config CPU_BIG_ENDIAN
  792. bool "Big endian"
  793. depends on SYS_SUPPORTS_BIG_ENDIAN
  794. config CPU_LITTLE_ENDIAN
  795. bool "Little endian"
  796. depends on SYS_SUPPORTS_LITTLE_ENDIAN
  797. help
  798. endchoice
  799. config SYS_SUPPORTS_BIG_ENDIAN
  800. bool
  801. config SYS_SUPPORTS_LITTLE_ENDIAN
  802. bool
  803. config IRQ_CPU
  804. bool
  805. config IRQ_CPU_RM7K
  806. bool
  807. config IRQ_CPU_RM9K
  808. bool
  809. config IRQ_MV64340
  810. bool
  811. config DDB5XXX_COMMON
  812. bool
  813. config MIPS_BOARDS_GEN
  814. bool
  815. config MIPS_GT64111
  816. bool
  817. config MIPS_GT64120
  818. bool
  819. config MIPS_TX3927
  820. bool
  821. select HAS_TXX9_SERIAL
  822. config MIPS_RM9122
  823. bool
  824. select SERIAL_RM9000
  825. select GPI_RM9000
  826. select WDT_RM9000
  827. config PCI_MARVELL
  828. bool
  829. config SOC_AU1000
  830. bool
  831. select SOC_AU1X00
  832. config SOC_AU1100
  833. bool
  834. select SOC_AU1X00
  835. config SOC_AU1500
  836. bool
  837. select SOC_AU1X00
  838. config SOC_AU1550
  839. bool
  840. select SOC_AU1X00
  841. config SOC_AU1200
  842. bool
  843. select SOC_AU1X00
  844. config SOC_AU1X00
  845. bool
  846. select SYS_HAS_CPU_MIPS32_R1
  847. select SYS_SUPPORTS_32BIT_KERNEL
  848. config PNX8550
  849. bool
  850. select SOC_PNX8550
  851. config SOC_PNX8550
  852. bool
  853. select DMA_NONCOHERENT
  854. select HW_HAS_PCI
  855. select SYS_HAS_CPU_MIPS32_R1
  856. select SYS_SUPPORTS_32BIT_KERNEL
  857. config SWAP_IO_SPACE
  858. bool
  859. config EMMA2RH
  860. bool
  861. depends on MARKEINS
  862. default y
  863. config SERIAL_RM9000
  864. bool
  865. config GPI_RM9000
  866. bool
  867. config WDT_RM9000
  868. bool
  869. #
  870. # Unfortunately not all GT64120 systems run the chip at the same clock.
  871. # As the user for the clock rate and try to minimize the available options.
  872. #
  873. choice
  874. prompt "Galileo Chip Clock"
  875. #default SYSCLK_83 if MIPS_EV64120
  876. depends on MIPS_EV64120 || MOMENCO_OCELOT || MOMENCO_OCELOT_G
  877. default SYSCLK_83 if MIPS_EV64120
  878. default SYSCLK_100 if MOMENCO_OCELOT || MOMENCO_OCELOT_G
  879. config SYSCLK_75
  880. bool "75" if MIPS_EV64120
  881. config SYSCLK_83
  882. bool "83.3" if MIPS_EV64120
  883. config SYSCLK_100
  884. bool "100" if MIPS_EV64120 || MOMENCO_OCELOT || MOMENCO_OCELOT_G
  885. endchoice
  886. config ARC32
  887. bool
  888. config AU1X00_USB_DEVICE
  889. bool
  890. depends on MIPS_PB1500 || MIPS_PB1100 || MIPS_PB1000
  891. default n
  892. config BOOT_ELF32
  893. bool
  894. config MIPS_L1_CACHE_SHIFT
  895. int
  896. default "4" if MACH_DECSTATION
  897. default "7" if SGI_IP27
  898. default "5"
  899. config HAVE_STD_PC_SERIAL_PORT
  900. bool
  901. config ARC_CONSOLE
  902. bool "ARC console support"
  903. depends on SGI_IP22 || SNI_RM200_PCI
  904. config ARC_MEMORY
  905. bool
  906. depends on MACH_JAZZ || SNI_RM200_PCI || SGI_IP32
  907. default y
  908. config ARC_PROMLIB
  909. bool
  910. depends on MACH_JAZZ || SNI_RM200_PCI || SGI_IP22 || SGI_IP32
  911. default y
  912. config ARC64
  913. bool
  914. config BOOT_ELF64
  915. bool
  916. config TOSHIBA_BOARDS
  917. bool
  918. menu "CPU selection"
  919. choice
  920. prompt "CPU type"
  921. default CPU_R4X00
  922. config CPU_MIPS32_R1
  923. bool "MIPS32 Release 1"
  924. depends on SYS_HAS_CPU_MIPS32_R1
  925. select CPU_HAS_LLSC
  926. select CPU_HAS_PREFETCH
  927. select CPU_SUPPORTS_32BIT_KERNEL
  928. select CPU_SUPPORTS_HIGHMEM
  929. help
  930. Choose this option to build a kernel for release 1 or later of the
  931. MIPS32 architecture. Most modern embedded systems with a 32-bit
  932. MIPS processor are based on a MIPS32 processor. If you know the
  933. specific type of processor in your system, choose those that one
  934. otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
  935. Release 2 of the MIPS32 architecture is available since several
  936. years so chances are you even have a MIPS32 Release 2 processor
  937. in which case you should choose CPU_MIPS32_R2 instead for better
  938. performance.
  939. config CPU_MIPS32_R2
  940. bool "MIPS32 Release 2"
  941. depends on SYS_HAS_CPU_MIPS32_R2
  942. select CPU_HAS_LLSC
  943. select CPU_HAS_PREFETCH
  944. select CPU_SUPPORTS_32BIT_KERNEL
  945. select CPU_SUPPORTS_HIGHMEM
  946. help
  947. Choose this option to build a kernel for release 2 or later of the
  948. MIPS32 architecture. Most modern embedded systems with a 32-bit
  949. MIPS processor are based on a MIPS32 processor. If you know the
  950. specific type of processor in your system, choose those that one
  951. otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
  952. config CPU_MIPS64_R1
  953. bool "MIPS64 Release 1"
  954. depends on SYS_HAS_CPU_MIPS64_R1
  955. select CPU_HAS_LLSC
  956. select CPU_HAS_PREFETCH
  957. select CPU_SUPPORTS_32BIT_KERNEL
  958. select CPU_SUPPORTS_64BIT_KERNEL
  959. select CPU_SUPPORTS_HIGHMEM
  960. help
  961. Choose this option to build a kernel for release 1 or later of the
  962. MIPS64 architecture. Many modern embedded systems with a 64-bit
  963. MIPS processor are based on a MIPS64 processor. If you know the
  964. specific type of processor in your system, choose those that one
  965. otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
  966. Release 2 of the MIPS64 architecture is available since several
  967. years so chances are you even have a MIPS64 Release 2 processor
  968. in which case you should choose CPU_MIPS64_R2 instead for better
  969. performance.
  970. config CPU_MIPS64_R2
  971. bool "MIPS64 Release 2"
  972. depends on SYS_HAS_CPU_MIPS64_R2
  973. select CPU_HAS_LLSC
  974. select CPU_HAS_PREFETCH
  975. select CPU_SUPPORTS_32BIT_KERNEL
  976. select CPU_SUPPORTS_64BIT_KERNEL
  977. select CPU_SUPPORTS_HIGHMEM
  978. help
  979. Choose this option to build a kernel for release 2 or later of the
  980. MIPS64 architecture. Many modern embedded systems with a 64-bit
  981. MIPS processor are based on a MIPS64 processor. If you know the
  982. specific type of processor in your system, choose those that one
  983. otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
  984. config CPU_R3000
  985. bool "R3000"
  986. depends on SYS_HAS_CPU_R3000
  987. select CPU_HAS_WB
  988. select CPU_SUPPORTS_32BIT_KERNEL
  989. select CPU_SUPPORTS_HIGHMEM
  990. help
  991. Please make sure to pick the right CPU type. Linux/MIPS is not
  992. designed to be generic, i.e. Kernels compiled for R3000 CPUs will
  993. *not* work on R4000 machines and vice versa. However, since most
  994. of the supported machines have an R4000 (or similar) CPU, R4x00
  995. might be a safe bet. If the resulting kernel does not work,
  996. try to recompile with R3000.
  997. config CPU_TX39XX
  998. bool "R39XX"
  999. depends on SYS_HAS_CPU_TX39XX
  1000. select CPU_SUPPORTS_32BIT_KERNEL
  1001. config CPU_VR41XX
  1002. bool "R41xx"
  1003. depends on SYS_HAS_CPU_VR41XX
  1004. select CPU_SUPPORTS_32BIT_KERNEL
  1005. select CPU_SUPPORTS_64BIT_KERNEL
  1006. help
  1007. The options selects support for the NEC VR4100 series of processors.
  1008. Only choose this option if you have one of these processors as a
  1009. kernel built with this option will not run on any other type of
  1010. processor or vice versa.
  1011. config CPU_R4300
  1012. bool "R4300"
  1013. depends on SYS_HAS_CPU_R4300
  1014. select CPU_HAS_LLSC
  1015. select CPU_SUPPORTS_32BIT_KERNEL
  1016. select CPU_SUPPORTS_64BIT_KERNEL
  1017. help
  1018. MIPS Technologies R4300-series processors.
  1019. config CPU_R4X00
  1020. bool "R4x00"
  1021. depends on SYS_HAS_CPU_R4X00
  1022. select CPU_HAS_LLSC
  1023. select CPU_SUPPORTS_32BIT_KERNEL
  1024. select CPU_SUPPORTS_64BIT_KERNEL
  1025. help
  1026. MIPS Technologies R4000-series processors other than 4300, including
  1027. the R4000, R4400, R4600, and 4700.
  1028. config CPU_TX49XX
  1029. bool "R49XX"
  1030. depends on SYS_HAS_CPU_TX49XX
  1031. select CPU_HAS_LLSC
  1032. select CPU_HAS_PREFETCH
  1033. select CPU_SUPPORTS_32BIT_KERNEL
  1034. select CPU_SUPPORTS_64BIT_KERNEL
  1035. config CPU_R5000
  1036. bool "R5000"
  1037. depends on SYS_HAS_CPU_R5000
  1038. select CPU_HAS_LLSC
  1039. select CPU_SUPPORTS_32BIT_KERNEL
  1040. select CPU_SUPPORTS_64BIT_KERNEL
  1041. help
  1042. MIPS Technologies R5000-series processors other than the Nevada.
  1043. config CPU_R5432
  1044. bool "R5432"
  1045. depends on SYS_HAS_CPU_R5432
  1046. select CPU_HAS_LLSC
  1047. select CPU_SUPPORTS_32BIT_KERNEL
  1048. select CPU_SUPPORTS_64BIT_KERNEL
  1049. config CPU_R6000
  1050. bool "R6000"
  1051. depends on EXPERIMENTAL
  1052. select CPU_HAS_LLSC
  1053. depends on SYS_HAS_CPU_R6000
  1054. select CPU_SUPPORTS_32BIT_KERNEL
  1055. help
  1056. MIPS Technologies R6000 and R6000A series processors. Note these
  1057. processors are extremely rare and the support for them is incomplete.
  1058. config CPU_NEVADA
  1059. bool "RM52xx"
  1060. depends on SYS_HAS_CPU_NEVADA
  1061. select CPU_HAS_LLSC
  1062. select CPU_SUPPORTS_32BIT_KERNEL
  1063. select CPU_SUPPORTS_64BIT_KERNEL
  1064. help
  1065. QED / PMC-Sierra RM52xx-series ("Nevada") processors.
  1066. config CPU_R8000
  1067. bool "R8000"
  1068. depends on EXPERIMENTAL
  1069. depends on SYS_HAS_CPU_R8000
  1070. select CPU_HAS_LLSC
  1071. select CPU_HAS_PREFETCH
  1072. select CPU_SUPPORTS_64BIT_KERNEL
  1073. help
  1074. MIPS Technologies R8000 processors. Note these processors are
  1075. uncommon and the support for them is incomplete.
  1076. config CPU_R10000
  1077. bool "R10000"
  1078. depends on SYS_HAS_CPU_R10000
  1079. select CPU_HAS_LLSC
  1080. select CPU_HAS_PREFETCH
  1081. select CPU_SUPPORTS_32BIT_KERNEL
  1082. select CPU_SUPPORTS_64BIT_KERNEL
  1083. select CPU_SUPPORTS_HIGHMEM
  1084. help
  1085. MIPS Technologies R10000-series processors.
  1086. config CPU_RM7000
  1087. bool "RM7000"
  1088. depends on SYS_HAS_CPU_RM7000
  1089. select CPU_HAS_LLSC
  1090. select CPU_HAS_PREFETCH
  1091. select CPU_SUPPORTS_32BIT_KERNEL
  1092. select CPU_SUPPORTS_64BIT_KERNEL
  1093. select CPU_SUPPORTS_HIGHMEM
  1094. config CPU_RM9000
  1095. bool "RM9000"
  1096. depends on SYS_HAS_CPU_RM9000
  1097. select CPU_HAS_LLSC
  1098. select CPU_HAS_PREFETCH
  1099. select CPU_SUPPORTS_32BIT_KERNEL
  1100. select CPU_SUPPORTS_64BIT_KERNEL
  1101. select CPU_SUPPORTS_HIGHMEM
  1102. config CPU_SB1
  1103. bool "SB1"
  1104. depends on SYS_HAS_CPU_SB1
  1105. select CPU_HAS_LLSC
  1106. select CPU_SUPPORTS_32BIT_KERNEL
  1107. select CPU_SUPPORTS_64BIT_KERNEL
  1108. select CPU_SUPPORTS_HIGHMEM
  1109. endchoice
  1110. config SYS_HAS_CPU_MIPS32_R1
  1111. bool
  1112. config SYS_HAS_CPU_MIPS32_R2
  1113. bool
  1114. config SYS_HAS_CPU_MIPS64_R1
  1115. bool
  1116. config SYS_HAS_CPU_MIPS64_R2
  1117. bool
  1118. config SYS_HAS_CPU_R3000
  1119. bool
  1120. config SYS_HAS_CPU_TX39XX
  1121. bool
  1122. config SYS_HAS_CPU_VR41XX
  1123. bool
  1124. config SYS_HAS_CPU_R4300
  1125. bool
  1126. config SYS_HAS_CPU_R4X00
  1127. bool
  1128. config SYS_HAS_CPU_TX49XX
  1129. bool
  1130. config SYS_HAS_CPU_R5000
  1131. bool
  1132. config SYS_HAS_CPU_R5432
  1133. bool
  1134. config SYS_HAS_CPU_R6000
  1135. bool
  1136. config SYS_HAS_CPU_NEVADA
  1137. bool
  1138. config SYS_HAS_CPU_R8000
  1139. bool
  1140. config SYS_HAS_CPU_R10000
  1141. bool
  1142. config SYS_HAS_CPU_RM7000
  1143. bool
  1144. config SYS_HAS_CPU_RM9000
  1145. bool
  1146. config SYS_HAS_CPU_SB1
  1147. bool
  1148. endmenu
  1149. #
  1150. # These two indicate any level of the MIPS32 and MIPS64 architecture
  1151. #
  1152. config CPU_MIPS32
  1153. bool
  1154. default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
  1155. config CPU_MIPS64
  1156. bool
  1157. default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
  1158. #
  1159. # These two indicate the revision of the architecture, either Release 1 or Release 2
  1160. #
  1161. config CPU_MIPSR1
  1162. bool
  1163. default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
  1164. config CPU_MIPSR2
  1165. bool
  1166. default y if CPU_MIPS32_R2 || CPU_MIPS64_R2
  1167. config SYS_SUPPORTS_32BIT_KERNEL
  1168. bool
  1169. config SYS_SUPPORTS_64BIT_KERNEL
  1170. bool
  1171. config CPU_SUPPORTS_32BIT_KERNEL
  1172. bool
  1173. config CPU_SUPPORTS_64BIT_KERNEL
  1174. bool
  1175. menu "Kernel type"
  1176. choice
  1177. prompt "Kernel code model"
  1178. help
  1179. You should only select this option if you have a workload that
  1180. actually benefits from 64-bit processing or if your machine has
  1181. large memory. You will only be presented a single option in this
  1182. menu if your system does not support both 32-bit and 64-bit kernels.
  1183. config 32BIT
  1184. bool "32-bit kernel"
  1185. depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
  1186. select TRAD_SIGNALS
  1187. help
  1188. Select this option if you want to build a 32-bit kernel.
  1189. config 64BIT
  1190. bool "64-bit kernel"
  1191. depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
  1192. help
  1193. Select this option if you want to build a 64-bit kernel.
  1194. endchoice
  1195. choice
  1196. prompt "Kernel page size"
  1197. default PAGE_SIZE_4KB
  1198. config PAGE_SIZE_4KB
  1199. bool "4kB"
  1200. help
  1201. This option select the standard 4kB Linux page size. On some
  1202. R3000-family processors this is the only available page size. Using
  1203. 4kB page size will minimize memory consumption and is therefore
  1204. recommended for low memory systems.
  1205. config PAGE_SIZE_8KB
  1206. bool "8kB"
  1207. depends on EXPERIMENTAL && CPU_R8000
  1208. help
  1209. Using 8kB page size will result in higher performance kernel at
  1210. the price of higher memory consumption. This option is available
  1211. only on the R8000 processor. Not that at the time of this writing
  1212. this option is still high experimental; there are also issues with
  1213. compatibility of user applications.
  1214. config PAGE_SIZE_16KB
  1215. bool "16kB"
  1216. depends on !CPU_R3000 && !CPU_TX39XX
  1217. help
  1218. Using 16kB page size will result in higher performance kernel at
  1219. the price of higher memory consumption. This option is available on
  1220. all non-R3000 family processors. Note that you will need a suitable
  1221. Linux distribution to support this.
  1222. config PAGE_SIZE_64KB
  1223. bool "64kB"
  1224. depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
  1225. help
  1226. Using 64kB page size will result in higher performance kernel at
  1227. the price of higher memory consumption. This option is available on
  1228. all non-R3000 family processor. Not that at the time of this
  1229. writing this option is still high experimental.
  1230. endchoice
  1231. config BOARD_SCACHE
  1232. bool
  1233. config IP22_CPU_SCACHE
  1234. bool
  1235. select BOARD_SCACHE
  1236. #
  1237. # Support for a MIPS32 / MIPS64 style S-caches
  1238. #
  1239. config MIPS_CPU_SCACHE
  1240. bool
  1241. select BOARD_SCACHE
  1242. config R5000_CPU_SCACHE
  1243. bool
  1244. select BOARD_SCACHE
  1245. config RM7000_CPU_SCACHE
  1246. bool
  1247. select BOARD_SCACHE
  1248. config SIBYTE_DMA_PAGEOPS
  1249. bool "Use DMA to clear/copy pages"
  1250. depends on CPU_SB1
  1251. help
  1252. Instead of using the CPU to zero and copy pages, use a Data Mover
  1253. channel. These DMA channels are otherwise unused by the standard
  1254. SiByte Linux port. Seems to give a small performance benefit.
  1255. config CPU_HAS_PREFETCH
  1256. bool
  1257. choice
  1258. prompt "MIPS MT options"
  1259. config MIPS_MT_DISABLED
  1260. bool "Disable multithreading support."
  1261. help
  1262. Use this option if your workload can't take advantage of
  1263. MIPS hardware multithreading support. On systems that don't have
  1264. the option of an MT-enabled processor this option will be the only
  1265. option in this menu.
  1266. config MIPS_MT_SMTC
  1267. bool "SMTC: Use all TCs on all VPEs for SMP"
  1268. depends on CPU_MIPS32_R2
  1269. #depends on CPU_MIPS64_R2 # once there is hardware ...
  1270. depends on SYS_SUPPORTS_MULTITHREADING
  1271. select CPU_MIPSR2_IRQ_VI
  1272. select CPU_MIPSR2_SRS
  1273. select MIPS_MT
  1274. select SMP
  1275. select SYS_SUPPORTS_SMP
  1276. help
  1277. This is a kernel model which is known a SMTC or lately has been
  1278. marketesed into SMVP.
  1279. config MIPS_MT_SMP
  1280. bool "Use 1 TC on each available VPE for SMP"
  1281. depends on SYS_SUPPORTS_MULTITHREADING
  1282. select CPU_MIPSR2_IRQ_VI
  1283. select CPU_MIPSR2_SRS
  1284. select MIPS_MT
  1285. select SMP
  1286. select SYS_SUPPORTS_SMP
  1287. help
  1288. This is a kernel model which is also known a VSMP or lately
  1289. has been marketesed into SMVP.
  1290. config MIPS_VPE_LOADER
  1291. bool "VPE loader support."
  1292. depends on SYS_SUPPORTS_MULTITHREADING
  1293. select MIPS_MT
  1294. help
  1295. Includes a loader for loading an elf relocatable object
  1296. onto another VPE and running it.
  1297. endchoice
  1298. config MIPS_MT
  1299. bool
  1300. config SYS_SUPPORTS_MULTITHREADING
  1301. bool
  1302. config MIPS_MT_FPAFF
  1303. bool "Dynamic FPU affinity for FP-intensive threads"
  1304. depends on MIPS_MT
  1305. default y
  1306. config MIPS_VPE_LOADER_TOM
  1307. bool "Load VPE program into memory hidden from linux"
  1308. depends on MIPS_VPE_LOADER
  1309. default y
  1310. help
  1311. The loader can use memory that is present but has been hidden from
  1312. Linux using the kernel command line option "mem=xxMB". It's up to
  1313. you to ensure the amount you put in the option and the space your
  1314. program requires is less or equal to the amount physically present.
  1315. # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
  1316. config MIPS_VPE_APSP_API
  1317. bool "Enable support for AP/SP API (RTLX)"
  1318. depends on MIPS_VPE_LOADER
  1319. help
  1320. config MIPS_APSP_KSPD
  1321. bool "Enable KSPD"
  1322. depends on MIPS_VPE_APSP_API
  1323. default y
  1324. help
  1325. KSPD is a kernel daemon that accepts syscall requests from the SP
  1326. side, actions them and returns the results. It also handles the
  1327. "exit" syscall notifying other kernel modules the SP program is
  1328. exiting. You probably want to say yes here.
  1329. config SB1_PASS_1_WORKAROUNDS
  1330. bool
  1331. depends on CPU_SB1_PASS_1
  1332. default y
  1333. config SB1_PASS_2_WORKAROUNDS
  1334. bool
  1335. depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
  1336. default y
  1337. config SB1_PASS_2_1_WORKAROUNDS
  1338. bool
  1339. depends on CPU_SB1 && CPU_SB1_PASS_2
  1340. default y
  1341. config 64BIT_PHYS_ADDR
  1342. bool "Support for 64-bit physical address space"
  1343. depends on (CPU_R4X00 || CPU_R5000 || CPU_RM7000 || CPU_RM9000 || CPU_R10000 || CPU_SB1 || CPU_MIPS32 || CPU_MIPS64) && 32BIT
  1344. config CPU_HAS_LLSC
  1345. bool
  1346. config CPU_HAS_WB
  1347. bool
  1348. #
  1349. # Vectored interrupt mode is an R2 feature
  1350. #
  1351. config CPU_MIPSR2_IRQ_VI
  1352. bool
  1353. #
  1354. # Extended interrupt mode is an R2 feature
  1355. #
  1356. config CPU_MIPSR2_IRQ_EI
  1357. bool
  1358. #
  1359. # Shadow registers are an R2 feature
  1360. #
  1361. config CPU_MIPSR2_SRS
  1362. bool
  1363. config CPU_HAS_SYNC
  1364. bool
  1365. depends on !CPU_R3000
  1366. default y
  1367. #
  1368. # Use the generic interrupt handling code in kernel/irq/:
  1369. #
  1370. config GENERIC_HARDIRQS
  1371. bool
  1372. default y
  1373. config GENERIC_IRQ_PROBE
  1374. bool
  1375. default y
  1376. config IRQ_PER_CPU
  1377. bool
  1378. #
  1379. # - Highmem only makes sense for the 32-bit kernel.
  1380. # - The current highmem code will only work properly on physically indexed
  1381. # caches such as R3000, SB1, R7000 or those that look like they're virtually
  1382. # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
  1383. # moment we protect the user and offer the highmem option only on machines
  1384. # where it's known to be safe. This will not offer highmem on a few systems
  1385. # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
  1386. # indexed CPUs but we're playing safe.
  1387. # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
  1388. # know they might have memory configurations that could make use of highmem
  1389. # support.
  1390. #
  1391. config HIGHMEM
  1392. bool "High Memory Support"
  1393. depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
  1394. config CPU_SUPPORTS_HIGHMEM
  1395. bool
  1396. config SYS_SUPPORTS_HIGHMEM
  1397. bool
  1398. config ARCH_FLATMEM_ENABLE
  1399. def_bool y
  1400. depends on !NUMA
  1401. config ARCH_DISCONTIGMEM_ENABLE
  1402. bool
  1403. default y if SGI_IP27
  1404. help
  1405. Say Y to upport efficient handling of discontiguous physical memory,
  1406. for architectures which are either NUMA (Non-Uniform Memory Access)
  1407. or have huge holes in the physical address space for other reasons.
  1408. See <file:Documentation/vm/numa> for more.
  1409. config ARCH_SPARSEMEM_ENABLE
  1410. bool
  1411. config ARCH_SPARSEMEM_ENABLE
  1412. bool
  1413. select SPARSEMEM_STATIC
  1414. config NUMA
  1415. bool "NUMA Support"
  1416. depends on SYS_SUPPORTS_NUMA
  1417. help
  1418. Say Y to compile the kernel to support NUMA (Non-Uniform Memory
  1419. Access). This option improves performance on systems with more
  1420. than two nodes; on two node systems it is generally better to
  1421. leave it disabled; on single node systems disable this option
  1422. disabled.
  1423. config SYS_SUPPORTS_NUMA
  1424. bool
  1425. config NODES_SHIFT
  1426. int
  1427. default "6"
  1428. depends on NEED_MULTIPLE_NODES
  1429. source "mm/Kconfig"
  1430. config SMP
  1431. bool "Multi-Processing support"
  1432. depends on SYS_SUPPORTS_SMP
  1433. select IRQ_PER_CPU
  1434. help
  1435. This enables support for systems with more than one CPU. If you have
  1436. a system with only one CPU, like most personal computers, say N. If
  1437. you have a system with more than one CPU, say Y.
  1438. If you say N here, the kernel will run on single and multiprocessor
  1439. machines, but will use only one CPU of a multiprocessor machine. If
  1440. you say Y here, the kernel will run on many, but not all,
  1441. singleprocessor machines. On a singleprocessor machine, the kernel
  1442. will run faster if you say N here.
  1443. People using multiprocessor machines who say Y here should also say
  1444. Y to "Enhanced Real Time Clock Support", below.
  1445. See also the <file:Documentation/smp.txt> and the SMP-HOWTO
  1446. available at <http://www.tldp.org/docs.html#howto>.
  1447. If you don't know what to do here, say N.
  1448. config SYS_SUPPORTS_SMP
  1449. bool
  1450. config NR_CPUS
  1451. int "Maximum number of CPUs (2-64)"
  1452. range 2 64
  1453. depends on SMP
  1454. default "64" if SGI_IP27
  1455. default "2"
  1456. help
  1457. This allows you to specify the maximum number of CPUs which this
  1458. kernel will support. The maximum supported value is 32 for 32-bit
  1459. kernel and 64 for 64-bit kernels; the minimum value which makes
  1460. sense is 2.
  1461. This is purely to save memory - each supported CPU adds
  1462. approximately eight kilobytes to the kernel image.
  1463. #
  1464. # Timer Interrupt Frequency Configuration
  1465. #
  1466. choice
  1467. prompt "Timer frequency"
  1468. default HZ_250
  1469. help
  1470. Allows the configuration of the timer frequency.
  1471. config HZ_48
  1472. bool "48 HZ" if SYS_SUPPORTS_48HZ
  1473. config HZ_100
  1474. bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
  1475. config HZ_128
  1476. bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
  1477. config HZ_250
  1478. bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
  1479. config HZ_256
  1480. bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
  1481. config HZ_1000
  1482. bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
  1483. config HZ_1024
  1484. bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
  1485. endchoice
  1486. config SYS_SUPPORTS_48HZ
  1487. bool
  1488. config SYS_SUPPORTS_100HZ
  1489. bool
  1490. config SYS_SUPPORTS_128HZ
  1491. bool
  1492. config SYS_SUPPORTS_250HZ
  1493. bool
  1494. config SYS_SUPPORTS_256HZ
  1495. bool
  1496. config SYS_SUPPORTS_1000HZ
  1497. bool
  1498. config SYS_SUPPORTS_1024HZ
  1499. bool
  1500. config SYS_SUPPORTS_ARBIT_HZ
  1501. bool
  1502. default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
  1503. !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
  1504. !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
  1505. !SYS_SUPPORTS_1024HZ
  1506. config HZ
  1507. int
  1508. default 48 if HZ_48
  1509. default 100 if HZ_100
  1510. default 128 if HZ_128
  1511. default 250 if HZ_250
  1512. default 256 if HZ_256
  1513. default 1000 if HZ_1000
  1514. default 1024 if HZ_1024
  1515. source "kernel/Kconfig.preempt"
  1516. config RTC_DS1742
  1517. bool "DS1742 BRAM/RTC support"
  1518. depends on TOSHIBA_JMR3927 || TOSHIBA_RBTX4927
  1519. config MIPS_INSANE_LARGE
  1520. bool "Support for large 64-bit configurations"
  1521. depends on CPU_R10000 && 64BIT
  1522. help
  1523. MIPS R10000 does support a 44 bit / 16TB address space as opposed to
  1524. previous 64-bit processors which only supported 40 bit / 1TB. If you
  1525. need processes of more than 1TB virtual address space, say Y here.
  1526. This will result in additional memory usage, so it is not
  1527. recommended for normal users.
  1528. endmenu
  1529. config RWSEM_GENERIC_SPINLOCK
  1530. bool
  1531. default y
  1532. config LOCKDEP_SUPPORT
  1533. bool
  1534. default y
  1535. config STACKTRACE_SUPPORT
  1536. bool
  1537. default y
  1538. source "init/Kconfig"
  1539. menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
  1540. config HW_HAS_EISA
  1541. bool
  1542. config HW_HAS_PCI
  1543. bool
  1544. config PCI
  1545. bool "Support for PCI controller"
  1546. depends on HW_HAS_PCI
  1547. help
  1548. Find out whether you have a PCI motherboard. PCI is the name of a
  1549. bus system, i.e. the way the CPU talks to the other stuff inside
  1550. your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
  1551. say Y, otherwise N.
  1552. The PCI-HOWTO, available from
  1553. <http://www.tldp.org/docs.html#howto>, contains valuable
  1554. information about which PCI hardware does work under Linux and which
  1555. doesn't.
  1556. config PCI_DOMAINS
  1557. bool
  1558. depends on PCI
  1559. source "drivers/pci/Kconfig"
  1560. #
  1561. # ISA support is now enabled via select. Too many systems still have the one
  1562. # or other ISA chip on the board that users don't know about so don't expect
  1563. # users to choose the right thing ...
  1564. #
  1565. config ISA
  1566. bool
  1567. config NO_ISA
  1568. bool
  1569. config EISA
  1570. bool "EISA support"
  1571. depends on HW_HAS_EISA
  1572. select ISA
  1573. ---help---
  1574. The Extended Industry Standard Architecture (EISA) bus was
  1575. developed as an open alternative to the IBM MicroChannel bus.
  1576. The EISA bus provided some of the features of the IBM MicroChannel
  1577. bus while maintaining backward compatibility with cards made for
  1578. the older ISA bus. The EISA bus saw limited use between 1988 and
  1579. 1995 when it was made obsolete by the PCI bus.
  1580. Say Y here if you are building a kernel for an EISA-based machine.
  1581. Otherwise, say N.
  1582. source "drivers/eisa/Kconfig"
  1583. config TC
  1584. bool "TURBOchannel support"
  1585. depends on MACH_DECSTATION
  1586. help
  1587. TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
  1588. processors. Documentation on writing device drivers for TurboChannel
  1589. is available at:
  1590. <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
  1591. #config ACCESSBUS
  1592. # bool "Access.Bus support"
  1593. # depends on TC
  1594. config MMU
  1595. bool
  1596. default y
  1597. config I8253
  1598. bool
  1599. source "drivers/pcmcia/Kconfig"
  1600. source "drivers/pci/hotplug/Kconfig"
  1601. endmenu
  1602. menu "Executable file formats"
  1603. source "fs/Kconfig.binfmt"
  1604. config TRAD_SIGNALS
  1605. bool
  1606. config BUILD_ELF64
  1607. bool "Use 64-bit ELF format for building"
  1608. depends on 64BIT
  1609. help
  1610. A 64-bit kernel is usually built using the 64-bit ELF binary object
  1611. format as it's one that allows arbitrary 64-bit constructs. For
  1612. kernels that are loaded within the KSEG compatibility segments the
  1613. 32-bit ELF format can optionally be used resulting in a somewhat
  1614. smaller binary, but this option is not explicitly supported by the
  1615. toolchain and since binutils 2.14 it does not even work at all.
  1616. Say Y to use the 64-bit format or N to use the 32-bit one.
  1617. If unsure say Y.
  1618. config BINFMT_IRIX
  1619. bool "Include IRIX binary compatibility"
  1620. depends on CPU_BIG_ENDIAN && 32BIT && BROKEN
  1621. config MIPS32_COMPAT
  1622. bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
  1623. depends on 64BIT
  1624. help
  1625. Select this option if you want Linux/MIPS 32-bit binary
  1626. compatibility. Since all software available for Linux/MIPS is
  1627. currently 32-bit you should say Y here.
  1628. config COMPAT
  1629. bool
  1630. depends on MIPS32_COMPAT
  1631. default y
  1632. config MIPS32_O32
  1633. bool "Kernel support for o32 binaries"
  1634. depends on MIPS32_COMPAT
  1635. help
  1636. Select this option if you want to run o32 binaries. These are pure
  1637. 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
  1638. existing binaries are in this format.
  1639. If unsure, say Y.
  1640. config MIPS32_N32
  1641. bool "Kernel support for n32 binaries"
  1642. depends on MIPS32_COMPAT
  1643. help
  1644. Select this option if you want to run n32 binaries. These are
  1645. 64-bit binaries using 32-bit quantities for addressing and certain
  1646. data that would normally be 64-bit. They are used in special
  1647. cases.
  1648. If unsure, say N.
  1649. config BINFMT_ELF32
  1650. bool
  1651. default y if MIPS32_O32 || MIPS32_N32
  1652. config SECCOMP
  1653. bool "Enable seccomp to safely compute untrusted bytecode"
  1654. depends on PROC_FS && BROKEN
  1655. default y
  1656. help
  1657. This kernel feature is useful for number crunching applications
  1658. that may need to compute untrusted bytecode during their
  1659. execution. By using pipes or other transports made available to
  1660. the process as file descriptors supporting the read/write
  1661. syscalls, it's possible to isolate those applications in
  1662. their own address space using seccomp. Once seccomp is
  1663. enabled via /proc/<pid>/seccomp, it cannot be disabled
  1664. and the task is only allowed to execute a few safe syscalls
  1665. defined by each seccomp mode.
  1666. If unsure, say Y. Only embedded should say N here.
  1667. config PM
  1668. bool "Power Management support (EXPERIMENTAL)"
  1669. depends on EXPERIMENTAL && SOC_AU1X00
  1670. config APM
  1671. tristate "Advanced Power Management Emulation"
  1672. depends on PM
  1673. ---help---
  1674. APM is a BIOS specification for saving power using several different
  1675. techniques. This is mostly useful for battery powered systems with
  1676. APM compliant BIOSes. If you say Y here, the system time will be
  1677. reset after a RESUME operation, the /proc/apm device will provide
  1678. battery status information, and user-space programs will receive
  1679. notification of APM "events" (e.g. battery status change).
  1680. In order to use APM, you will need supporting software. For location
  1681. and more information, read <file:Documentation/pm.txt> and the
  1682. Battery Powered Linux mini-HOWTO, available from
  1683. <http://www.tldp.org/docs.html#howto>.
  1684. This driver does not spin down disk drives (see the hdparm(8)
  1685. manpage ("man 8 hdparm") for that), and it doesn't turn off
  1686. VESA-compliant "green" monitors.
  1687. Generally, if you don't have a battery in your machine, there isn't
  1688. much point in using this driver and you should say N. If you get
  1689. random kernel OOPSes or reboots that don't seem to be related to
  1690. anything, try disabling/enabling this option (or disabling/enabling
  1691. APM in your BIOS).
  1692. endmenu
  1693. source "net/Kconfig"
  1694. source "drivers/Kconfig"
  1695. source "fs/Kconfig"
  1696. source "arch/mips/oprofile/Kconfig"
  1697. source "arch/mips/Kconfig.debug"
  1698. source "security/Kconfig"
  1699. source "crypto/Kconfig"
  1700. source "lib/Kconfig"