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