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. select RTC_LIB
  7. mainmenu "Linux/MIPS Kernel Configuration"
  8. menu "Machine selection"
  9. config ZONE_DMA
  10. bool
  11. choice
  12. prompt "System type"
  13. default SGI_IP22
  14. config MACH_ALCHEMY
  15. bool "Alchemy processor based machines"
  16. config BASLER_EXCITE
  17. bool "Basler eXcite smart camera"
  18. select DMA_COHERENT
  19. select HW_HAS_PCI
  20. select IRQ_CPU
  21. select IRQ_CPU_RM7K
  22. select IRQ_CPU_RM9K
  23. select MIPS_RM9122
  24. select SYS_HAS_CPU_RM9000
  25. select SYS_SUPPORTS_32BIT_KERNEL
  26. select SYS_SUPPORTS_BIG_ENDIAN
  27. select SYS_SUPPORTS_KGDB
  28. help
  29. The eXcite is a smart camera platform manufactured by
  30. Basler Vision Technologies AG.
  31. config BASLER_EXCITE_PROTOTYPE
  32. bool "Support for pre-release units"
  33. depends on BASLER_EXCITE
  34. default n
  35. help
  36. Pre-series (prototype) units are different from later ones in
  37. some ways. Select this option if you have one of these. Please
  38. note that a kernel built with this option selected will not be
  39. able to run on normal units.
  40. config BCM47XX
  41. bool "BCM47XX based boards"
  42. select DMA_NONCOHERENT
  43. select HW_HAS_PCI
  44. select IRQ_CPU
  45. select SYS_HAS_CPU_MIPS32_R1
  46. select SYS_SUPPORTS_32BIT_KERNEL
  47. select SYS_SUPPORTS_LITTLE_ENDIAN
  48. select SSB
  49. select SSB_DRIVER_MIPS
  50. select GENERIC_GPIO
  51. select SYS_HAS_EARLY_PRINTK
  52. select CFE
  53. help
  54. Support for BCM47XX based boards
  55. config MIPS_COBALT
  56. bool "Cobalt Server"
  57. select DMA_NONCOHERENT
  58. select HW_HAS_PCI
  59. select I8253
  60. select I8259
  61. select IRQ_CPU
  62. select IRQ_GT641XX
  63. select PCI_GT64XXX_PCI0
  64. select SYS_HAS_CPU_NEVADA
  65. select SYS_HAS_EARLY_PRINTK
  66. select SYS_SUPPORTS_32BIT_KERNEL
  67. select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
  68. select SYS_SUPPORTS_LITTLE_ENDIAN
  69. select GENERIC_HARDIRQS_NO__DO_IRQ
  70. config MACH_DECSTATION
  71. bool "DECstations"
  72. select BOOT_ELF32
  73. select DMA_NONCOHERENT
  74. select NO_IOPORT
  75. select IRQ_CPU
  76. select SYS_HAS_CPU_R3000
  77. select SYS_HAS_CPU_R4X00
  78. select SYS_SUPPORTS_32BIT_KERNEL
  79. select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
  80. select SYS_SUPPORTS_LITTLE_ENDIAN
  81. select SYS_SUPPORTS_128HZ
  82. select SYS_SUPPORTS_256HZ
  83. select SYS_SUPPORTS_1024HZ
  84. help
  85. This enables support for DEC's MIPS based workstations. For details
  86. see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
  87. DECstation porting pages on <http://decstation.unix-ag.org/>.
  88. If you have one of the following DECstation Models you definitely
  89. want to choose R4xx0 for the CPU Type:
  90. DECstation 5000/50
  91. DECstation 5000/150
  92. DECstation 5000/260
  93. DECsystem 5900/260
  94. otherwise choose R3000.
  95. config MACH_JAZZ
  96. bool "Jazz family of machines"
  97. select ARC
  98. select ARC32
  99. select ARCH_MAY_HAVE_PC_FDC
  100. select GENERIC_ISA_DMA
  101. select IRQ_CPU
  102. select I8253
  103. select I8259
  104. select ISA
  105. select PCSPEAKER
  106. select SYS_HAS_CPU_R4X00
  107. select SYS_SUPPORTS_32BIT_KERNEL
  108. select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
  109. select SYS_SUPPORTS_100HZ
  110. select GENERIC_HARDIRQS_NO__DO_IRQ
  111. help
  112. This a family of machines based on the MIPS R4030 chipset which was
  113. used by several vendors to build RISC/os and Windows NT workstations.
  114. Members include the Acer PICA, MIPS Magnum 4000, MIPS Millenium and
  115. Olivetti M700-10 workstations.
  116. config LASAT
  117. bool "LASAT Networks platforms"
  118. select DMA_NONCOHERENT
  119. select SYS_HAS_EARLY_PRINTK
  120. select HW_HAS_PCI
  121. select PCI_GT64XXX_PCI0
  122. select MIPS_NILE4
  123. select R5000_CPU_SCACHE
  124. select SYS_HAS_CPU_R5000
  125. select SYS_SUPPORTS_32BIT_KERNEL
  126. select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
  127. select SYS_SUPPORTS_LITTLE_ENDIAN
  128. select GENERIC_HARDIRQS_NO__DO_IRQ
  129. config LEMOTE_FULONG
  130. bool "Lemote Fulong mini-PC"
  131. select ARCH_SPARSEMEM_ENABLE
  132. select SYS_HAS_CPU_LOONGSON2
  133. select DMA_NONCOHERENT
  134. select BOOT_ELF32
  135. select BOARD_SCACHE
  136. select HAVE_STD_PC_SERIAL_PORT
  137. select HW_HAS_PCI
  138. select I8259
  139. select ISA
  140. select IRQ_CPU
  141. select SYS_SUPPORTS_32BIT_KERNEL
  142. select SYS_SUPPORTS_64BIT_KERNEL
  143. select SYS_SUPPORTS_LITTLE_ENDIAN
  144. select SYS_SUPPORTS_HIGHMEM
  145. select SYS_HAS_EARLY_PRINTK
  146. select GENERIC_HARDIRQS_NO__DO_IRQ
  147. select GENERIC_ISA_DMA_SUPPORT_BROKEN
  148. select CPU_HAS_WB
  149. help
  150. Lemote Fulong mini-PC board based on the Chinese Loongson-2E CPU and
  151. an FPGA northbridge
  152. config MIPS_ATLAS
  153. bool "MIPS Atlas board"
  154. select BOOT_ELF32
  155. select DMA_NONCOHERENT
  156. select SYS_HAS_EARLY_PRINTK
  157. select IRQ_CPU
  158. select HW_HAS_PCI
  159. select MIPS_BOARDS_GEN
  160. select MIPS_BONITO64
  161. select PCI_GT64XXX_PCI0
  162. select MIPS_MSC
  163. select RM7000_CPU_SCACHE
  164. select SWAP_IO_SPACE
  165. select SYS_HAS_CPU_MIPS32_R1
  166. select SYS_HAS_CPU_MIPS32_R2
  167. select SYS_HAS_CPU_MIPS64_R1
  168. select SYS_HAS_CPU_NEVADA
  169. select SYS_HAS_CPU_RM7000
  170. select SYS_SUPPORTS_32BIT_KERNEL
  171. select SYS_SUPPORTS_64BIT_KERNEL
  172. select SYS_SUPPORTS_BIG_ENDIAN
  173. select SYS_SUPPORTS_LITTLE_ENDIAN
  174. select SYS_SUPPORTS_MULTITHREADING if EXPERIMENTAL
  175. select SYS_SUPPORTS_SMARTMIPS
  176. select GENERIC_HARDIRQS_NO__DO_IRQ
  177. help
  178. This enables support for the MIPS Technologies Atlas evaluation
  179. board.
  180. config MIPS_MALTA
  181. bool "MIPS Malta board"
  182. select ARCH_MAY_HAVE_PC_FDC
  183. select BOOT_ELF32
  184. select DMA_NONCOHERENT
  185. select GENERIC_ISA_DMA
  186. select IRQ_CPU
  187. select HW_HAS_PCI
  188. select I8253
  189. select I8259
  190. select MIPS_BOARDS_GEN
  191. select MIPS_BONITO64
  192. select MIPS_CPU_SCACHE
  193. select PCI_GT64XXX_PCI0
  194. select MIPS_MSC
  195. select SWAP_IO_SPACE
  196. select SYS_HAS_CPU_MIPS32_R1
  197. select SYS_HAS_CPU_MIPS32_R2
  198. select SYS_HAS_CPU_MIPS64_R1
  199. select SYS_HAS_CPU_NEVADA
  200. select SYS_HAS_CPU_RM7000
  201. select SYS_HAS_EARLY_PRINTK
  202. select SYS_SUPPORTS_32BIT_KERNEL
  203. select SYS_SUPPORTS_64BIT_KERNEL
  204. select SYS_SUPPORTS_BIG_ENDIAN
  205. select SYS_SUPPORTS_LITTLE_ENDIAN
  206. select SYS_SUPPORTS_MULTITHREADING
  207. select SYS_SUPPORTS_SMARTMIPS
  208. help
  209. This enables support for the MIPS Technologies Malta evaluation
  210. board.
  211. config MIPS_SEAD
  212. bool "MIPS SEAD board"
  213. select IRQ_CPU
  214. select DMA_NONCOHERENT
  215. select SYS_HAS_EARLY_PRINTK
  216. select MIPS_BOARDS_GEN
  217. select SYS_HAS_CPU_MIPS32_R1
  218. select SYS_HAS_CPU_MIPS32_R2
  219. select SYS_HAS_CPU_MIPS64_R1
  220. select SYS_SUPPORTS_32BIT_KERNEL
  221. select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
  222. select SYS_SUPPORTS_BIG_ENDIAN
  223. select SYS_SUPPORTS_LITTLE_ENDIAN
  224. select SYS_SUPPORTS_SMARTMIPS
  225. help
  226. This enables support for the MIPS Technologies SEAD evaluation
  227. board.
  228. config MIPS_SIM
  229. bool 'MIPS simulator (MIPSsim)'
  230. select DMA_NONCOHERENT
  231. select SYS_HAS_EARLY_PRINTK
  232. select IRQ_CPU
  233. select BOOT_RAW
  234. select SYS_HAS_CPU_MIPS32_R1
  235. select SYS_HAS_CPU_MIPS32_R2
  236. select SYS_HAS_EARLY_PRINTK
  237. select SYS_SUPPORTS_32BIT_KERNEL
  238. select SYS_SUPPORTS_BIG_ENDIAN
  239. select SYS_SUPPORTS_MULTITHREADING
  240. select SYS_SUPPORTS_LITTLE_ENDIAN
  241. help
  242. This option enables support for MIPS Technologies MIPSsim software
  243. emulator.
  244. config MARKEINS
  245. bool "NEC EMMA2RH Mark-eins"
  246. select DMA_NONCOHERENT
  247. select HW_HAS_PCI
  248. select IRQ_CPU
  249. select SWAP_IO_SPACE
  250. select SYS_SUPPORTS_32BIT_KERNEL
  251. select SYS_SUPPORTS_BIG_ENDIAN
  252. select SYS_SUPPORTS_LITTLE_ENDIAN
  253. select SYS_HAS_CPU_R5000
  254. help
  255. This enables support for the R5432-based NEC Mark-eins
  256. boards with R5500 CPU.
  257. config MACH_VR41XX
  258. bool "NEC VR4100 series based machines"
  259. select SYS_HAS_CPU_VR41XX
  260. select GENERIC_HARDIRQS_NO__DO_IRQ
  261. config PNX8550_JBS
  262. bool "Philips PNX8550 based JBS board"
  263. select PNX8550
  264. select SYS_SUPPORTS_LITTLE_ENDIAN
  265. config PNX8550_STB810
  266. bool "Philips PNX8550 based STB810 board"
  267. select PNX8550
  268. select SYS_SUPPORTS_LITTLE_ENDIAN
  269. config PMC_MSP
  270. bool "PMC-Sierra MSP chipsets"
  271. depends on EXPERIMENTAL
  272. select DMA_NONCOHERENT
  273. select SWAP_IO_SPACE
  274. select NO_EXCEPT_FILL
  275. select BOOT_RAW
  276. select SYS_HAS_CPU_MIPS32_R1
  277. select SYS_HAS_CPU_MIPS32_R2
  278. select SYS_SUPPORTS_32BIT_KERNEL
  279. select SYS_SUPPORTS_BIG_ENDIAN
  280. select SYS_SUPPORTS_KGDB
  281. select IRQ_CPU
  282. select SERIAL_8250
  283. select SERIAL_8250_CONSOLE
  284. help
  285. This adds support for the PMC-Sierra family of Multi-Service
  286. Processor System-On-A-Chips. These parts include a number
  287. of integrated peripherals, interfaces and DSPs in addition to
  288. a variety of MIPS cores.
  289. config PMC_YOSEMITE
  290. bool "PMC-Sierra Yosemite eval board"
  291. select DMA_COHERENT
  292. select HW_HAS_PCI
  293. select IRQ_CPU
  294. select IRQ_CPU_RM7K
  295. select IRQ_CPU_RM9K
  296. select SWAP_IO_SPACE
  297. select SYS_HAS_CPU_RM9000
  298. select SYS_HAS_EARLY_PRINTK
  299. select SYS_SUPPORTS_32BIT_KERNEL
  300. select SYS_SUPPORTS_64BIT_KERNEL
  301. select SYS_SUPPORTS_BIG_ENDIAN
  302. select SYS_SUPPORTS_HIGHMEM
  303. select SYS_SUPPORTS_KGDB
  304. select SYS_SUPPORTS_SMP
  305. help
  306. Yosemite is an evaluation board for the RM9000x2 processor
  307. manufactured by PMC-Sierra.
  308. config QEMU
  309. bool "Qemu"
  310. select DMA_COHERENT
  311. select GENERIC_ISA_DMA
  312. select HAVE_STD_PC_SERIAL_PORT
  313. select I8253
  314. select I8259
  315. select IRQ_CPU
  316. select ISA
  317. select PCSPEAKER
  318. select SWAP_IO_SPACE
  319. select SYS_HAS_CPU_MIPS32_R1
  320. select SYS_SUPPORTS_32BIT_KERNEL
  321. select SYS_SUPPORTS_BIG_ENDIAN
  322. select SYS_SUPPORTS_LITTLE_ENDIAN
  323. select ARCH_SPARSEMEM_ENABLE
  324. select GENERIC_HARDIRQS_NO__DO_IRQ
  325. select NR_CPUS_DEFAULT_1
  326. select SYS_SUPPORTS_SMP
  327. help
  328. Qemu is a software emulator which among other architectures also
  329. can simulate a MIPS32 4Kc system. This patch adds support for the
  330. system architecture that currently is being simulated by Qemu. It
  331. will eventually be removed again when Qemu has the capability to
  332. simulate actual MIPS hardware platforms. More information on Qemu
  333. can be found at http://www.linux-mips.org/wiki/Qemu.
  334. config SGI_IP22
  335. bool "SGI IP22 (Indy/Indigo2)"
  336. select ARC
  337. select ARC32
  338. select BOOT_ELF32
  339. select DMA_NONCOHERENT
  340. select HW_HAS_EISA
  341. select I8253
  342. select IP22_CPU_SCACHE
  343. select IRQ_CPU
  344. select GENERIC_ISA_DMA_SUPPORT_BROKEN
  345. select SWAP_IO_SPACE
  346. select SYS_HAS_CPU_R4X00
  347. select SYS_HAS_CPU_R5000
  348. select SYS_HAS_EARLY_PRINTK
  349. select SYS_SUPPORTS_32BIT_KERNEL
  350. select SYS_SUPPORTS_64BIT_KERNEL
  351. select SYS_SUPPORTS_BIG_ENDIAN
  352. help
  353. This are the SGI Indy, Challenge S and Indigo2, as well as certain
  354. OEM variants like the Tandem CMN B006S. To compile a Linux kernel
  355. that runs on these, say Y here.
  356. config SGI_IP27
  357. bool "SGI IP27 (Origin200/2000)"
  358. select ARC
  359. select ARC64
  360. select BOOT_ELF64
  361. select DMA_IP27
  362. select SYS_HAS_EARLY_PRINTK
  363. select HW_HAS_PCI
  364. select NR_CPUS_DEFAULT_64
  365. select SYS_HAS_CPU_R10000
  366. select SYS_SUPPORTS_64BIT_KERNEL
  367. select SYS_SUPPORTS_BIG_ENDIAN
  368. select SYS_SUPPORTS_KGDB
  369. select SYS_SUPPORTS_NUMA
  370. select SYS_SUPPORTS_SMP
  371. select GENERIC_HARDIRQS_NO__DO_IRQ
  372. help
  373. This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
  374. workstations. To compile a Linux kernel that runs on these, say Y
  375. here.
  376. config SGI_IP32
  377. bool "SGI IP32 (O2)"
  378. select ARC
  379. select ARC32
  380. select BOOT_ELF32
  381. select DMA_NONCOHERENT
  382. select HW_HAS_PCI
  383. select IRQ_CPU
  384. select R5000_CPU_SCACHE
  385. select RM7000_CPU_SCACHE
  386. select SYS_HAS_CPU_R5000
  387. select SYS_HAS_CPU_R10000 if BROKEN
  388. select SYS_HAS_CPU_RM7000
  389. select SYS_HAS_CPU_NEVADA
  390. select SYS_SUPPORTS_64BIT_KERNEL
  391. select SYS_SUPPORTS_BIG_ENDIAN
  392. help
  393. If you want this kernel to run on SGI O2 workstation, say Y here.
  394. config SIBYTE_CRHINE
  395. bool "Sibyte BCM91120C-CRhine"
  396. depends on EXPERIMENTAL
  397. select BOOT_ELF32
  398. select DMA_COHERENT
  399. select SIBYTE_BCM1120
  400. select SWAP_IO_SPACE
  401. select SYS_HAS_CPU_SB1
  402. select SYS_SUPPORTS_BIG_ENDIAN
  403. select SYS_SUPPORTS_LITTLE_ENDIAN
  404. config SIBYTE_CARMEL
  405. bool "Sibyte BCM91120x-Carmel"
  406. depends on EXPERIMENTAL
  407. select BOOT_ELF32
  408. select DMA_COHERENT
  409. select SIBYTE_BCM1120
  410. select SWAP_IO_SPACE
  411. select SYS_HAS_CPU_SB1
  412. select SYS_SUPPORTS_BIG_ENDIAN
  413. select SYS_SUPPORTS_LITTLE_ENDIAN
  414. config SIBYTE_CRHONE
  415. bool "Sibyte BCM91125C-CRhone"
  416. depends on EXPERIMENTAL
  417. select BOOT_ELF32
  418. select DMA_COHERENT
  419. select SIBYTE_BCM1125
  420. select SWAP_IO_SPACE
  421. select SYS_HAS_CPU_SB1
  422. select SYS_SUPPORTS_BIG_ENDIAN
  423. select SYS_SUPPORTS_HIGHMEM
  424. select SYS_SUPPORTS_LITTLE_ENDIAN
  425. config SIBYTE_RHONE
  426. bool "Sibyte BCM91125E-Rhone"
  427. depends on EXPERIMENTAL
  428. select BOOT_ELF32
  429. select DMA_COHERENT
  430. select SIBYTE_BCM1125H
  431. select SWAP_IO_SPACE
  432. select SYS_HAS_CPU_SB1
  433. select SYS_SUPPORTS_BIG_ENDIAN
  434. select SYS_SUPPORTS_LITTLE_ENDIAN
  435. config SIBYTE_SWARM
  436. bool "Sibyte BCM91250A-SWARM"
  437. select BOOT_ELF32
  438. select DMA_COHERENT
  439. select NR_CPUS_DEFAULT_2
  440. select SIBYTE_SB1250
  441. select SWAP_IO_SPACE
  442. select SYS_HAS_CPU_SB1
  443. select SYS_SUPPORTS_BIG_ENDIAN
  444. select SYS_SUPPORTS_HIGHMEM
  445. select SYS_SUPPORTS_KGDB
  446. select SYS_SUPPORTS_LITTLE_ENDIAN
  447. config SIBYTE_LITTLESUR
  448. bool "Sibyte BCM91250C2-LittleSur"
  449. depends on EXPERIMENTAL
  450. select BOOT_ELF32
  451. select DMA_COHERENT
  452. select NR_CPUS_DEFAULT_2
  453. select SIBYTE_SB1250
  454. select SWAP_IO_SPACE
  455. select SYS_HAS_CPU_SB1
  456. select SYS_SUPPORTS_BIG_ENDIAN
  457. select SYS_SUPPORTS_HIGHMEM
  458. select SYS_SUPPORTS_LITTLE_ENDIAN
  459. config SIBYTE_SENTOSA
  460. bool "Sibyte BCM91250E-Sentosa"
  461. depends on EXPERIMENTAL
  462. select BOOT_ELF32
  463. select DMA_COHERENT
  464. select NR_CPUS_DEFAULT_2
  465. select SIBYTE_SB1250
  466. select SWAP_IO_SPACE
  467. select SYS_HAS_CPU_SB1
  468. select SYS_SUPPORTS_BIG_ENDIAN
  469. select SYS_SUPPORTS_LITTLE_ENDIAN
  470. config SIBYTE_PTSWARM
  471. bool "Sibyte BCM91250PT-PTSWARM"
  472. depends on EXPERIMENTAL
  473. select BOOT_ELF32
  474. select DMA_COHERENT
  475. select NR_CPUS_DEFAULT_2
  476. select SIBYTE_SB1250
  477. select SWAP_IO_SPACE
  478. select SYS_HAS_CPU_SB1
  479. select SYS_SUPPORTS_BIG_ENDIAN
  480. select SYS_SUPPORTS_HIGHMEM
  481. select SYS_SUPPORTS_LITTLE_ENDIAN
  482. config SIBYTE_BIGSUR
  483. bool "Sibyte BCM91480B-BigSur"
  484. select BOOT_ELF32
  485. select DMA_COHERENT
  486. select NR_CPUS_DEFAULT_4
  487. select SIBYTE_BCM1x80
  488. select SWAP_IO_SPACE
  489. select SYS_HAS_CPU_SB1
  490. select SYS_SUPPORTS_BIG_ENDIAN
  491. select SYS_SUPPORTS_LITTLE_ENDIAN
  492. config SNI_RM
  493. bool "SNI RM200/300/400"
  494. select ARC if CPU_LITTLE_ENDIAN
  495. select ARC32 if CPU_LITTLE_ENDIAN
  496. select ARCH_MAY_HAVE_PC_FDC
  497. select BOOT_ELF32
  498. select DMA_NONCOHERENT
  499. select GENERIC_ISA_DMA
  500. select HW_HAS_EISA
  501. select HW_HAS_PCI
  502. select IRQ_CPU
  503. select I8253
  504. select I8259
  505. select ISA
  506. select PCSPEAKER
  507. select SWAP_IO_SPACE if CPU_BIG_ENDIAN
  508. select SYS_HAS_CPU_R4X00
  509. select SYS_HAS_CPU_R5000
  510. select SYS_HAS_CPU_R10000
  511. select R5000_CPU_SCACHE
  512. select SYS_HAS_EARLY_PRINTK
  513. select SYS_SUPPORTS_32BIT_KERNEL
  514. select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
  515. select SYS_SUPPORTS_BIG_ENDIAN
  516. select SYS_SUPPORTS_HIGHMEM
  517. select SYS_SUPPORTS_LITTLE_ENDIAN
  518. help
  519. The SNI RM200/300/400 are MIPS-based machines manufactured by
  520. Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
  521. Technology and now in turn merged with Fujitsu. Say Y here to
  522. support this machine type.
  523. config TOSHIBA_JMR3927
  524. bool "Toshiba JMR-TX3927 board"
  525. select DMA_NONCOHERENT
  526. select HW_HAS_PCI
  527. select MIPS_TX3927
  528. select IRQ_TXX9
  529. select SWAP_IO_SPACE
  530. select SYS_HAS_CPU_TX39XX
  531. select SYS_SUPPORTS_32BIT_KERNEL
  532. select SYS_SUPPORTS_LITTLE_ENDIAN
  533. select SYS_SUPPORTS_BIG_ENDIAN
  534. select GENERIC_HARDIRQS_NO__DO_IRQ
  535. config TOSHIBA_RBTX4927
  536. bool "Toshiba RBTX49[23]7 board"
  537. select DMA_NONCOHERENT
  538. select HAS_TXX9_SERIAL
  539. select HW_HAS_PCI
  540. select IRQ_CPU
  541. select IRQ_TXX9
  542. select I8259 if TOSHIBA_FPCIB0
  543. select SWAP_IO_SPACE
  544. select SYS_HAS_CPU_TX49XX
  545. select SYS_SUPPORTS_32BIT_KERNEL
  546. select SYS_SUPPORTS_64BIT_KERNEL
  547. select SYS_SUPPORTS_LITTLE_ENDIAN
  548. select SYS_SUPPORTS_BIG_ENDIAN
  549. select SYS_SUPPORTS_KGDB
  550. select GENERIC_HARDIRQS_NO__DO_IRQ
  551. help
  552. This Toshiba board is based on the TX4927 processor. Say Y here to
  553. support this machine type
  554. config TOSHIBA_RBTX4938
  555. bool "Toshiba RBTX4938 board"
  556. select DMA_NONCOHERENT
  557. select HAS_TXX9_SERIAL
  558. select HW_HAS_PCI
  559. select IRQ_CPU
  560. select IRQ_TXX9
  561. select SWAP_IO_SPACE
  562. select SYS_HAS_CPU_TX49XX
  563. select SYS_SUPPORTS_32BIT_KERNEL
  564. select SYS_SUPPORTS_LITTLE_ENDIAN
  565. select SYS_SUPPORTS_BIG_ENDIAN
  566. select SYS_SUPPORTS_KGDB
  567. select GENERIC_HARDIRQS_NO__DO_IRQ
  568. select GENERIC_GPIO
  569. help
  570. This Toshiba board is based on the TX4938 processor. Say Y here to
  571. support this machine type
  572. config WR_PPMC
  573. bool "Wind River PPMC board"
  574. select IRQ_CPU
  575. select BOOT_ELF32
  576. select DMA_NONCOHERENT
  577. select HW_HAS_PCI
  578. select PCI_GT64XXX_PCI0
  579. select SWAP_IO_SPACE
  580. select SYS_HAS_CPU_MIPS32_R1
  581. select SYS_HAS_CPU_MIPS32_R2
  582. select SYS_HAS_CPU_MIPS64_R1
  583. select SYS_HAS_CPU_NEVADA
  584. select SYS_HAS_CPU_RM7000
  585. select SYS_SUPPORTS_32BIT_KERNEL
  586. select SYS_SUPPORTS_64BIT_KERNEL
  587. select SYS_SUPPORTS_BIG_ENDIAN
  588. select SYS_SUPPORTS_LITTLE_ENDIAN
  589. help
  590. This enables support for the Wind River MIPS32 4KC PPMC evaluation
  591. board, which is based on GT64120 bridge chip.
  592. endchoice
  593. source "arch/mips/au1000/Kconfig"
  594. source "arch/mips/jazz/Kconfig"
  595. source "arch/mips/lasat/Kconfig"
  596. source "arch/mips/pmc-sierra/Kconfig"
  597. source "arch/mips/sgi-ip27/Kconfig"
  598. source "arch/mips/sibyte/Kconfig"
  599. source "arch/mips/tx4927/Kconfig"
  600. source "arch/mips/tx4938/Kconfig"
  601. source "arch/mips/vr41xx/Kconfig"
  602. endmenu
  603. config RWSEM_GENERIC_SPINLOCK
  604. bool
  605. default y
  606. config RWSEM_XCHGADD_ALGORITHM
  607. bool
  608. config ARCH_HAS_ILOG2_U32
  609. bool
  610. default n
  611. config ARCH_HAS_ILOG2_U64
  612. bool
  613. default n
  614. config GENERIC_FIND_NEXT_BIT
  615. bool
  616. default y
  617. config GENERIC_HWEIGHT
  618. bool
  619. default y
  620. config GENERIC_CALIBRATE_DELAY
  621. bool
  622. default y
  623. config GENERIC_CLOCKEVENTS
  624. bool
  625. default y
  626. config GENERIC_TIME
  627. bool
  628. default y
  629. config GENERIC_CMOS_UPDATE
  630. bool
  631. default y
  632. config SCHED_NO_NO_OMIT_FRAME_POINTER
  633. bool
  634. default y
  635. config GENERIC_HARDIRQS_NO__DO_IRQ
  636. bool
  637. default n
  638. #
  639. # Select some configuration options automatically based on user selections.
  640. #
  641. config ARC
  642. bool
  643. config ARCH_MAY_HAVE_PC_FDC
  644. bool
  645. config BOOT_RAW
  646. bool
  647. config CFE
  648. bool
  649. config DMA_COHERENT
  650. bool
  651. config DMA_IP27
  652. bool
  653. config DMA_IP32
  654. bool
  655. select DMA_NEED_PCI_MAP_STATE
  656. config DMA_NONCOHERENT
  657. bool
  658. select DMA_NEED_PCI_MAP_STATE
  659. config DMA_NEED_PCI_MAP_STATE
  660. bool
  661. config EARLY_PRINTK
  662. bool "Early printk" if EMBEDDED && DEBUG_KERNEL
  663. depends on SYS_HAS_EARLY_PRINTK
  664. default y
  665. help
  666. This option enables special console drivers which allow the kernel
  667. to print messages very early in the bootup process.
  668. This is useful for kernel debugging when your machine crashes very
  669. early before the console code is initialized. For normal operation,
  670. it is not recommended because it looks ugly on some machines and
  671. doesn't cooperate with an X server. You should normally say N here,
  672. unless you want to debug such a crash.
  673. config SYS_HAS_EARLY_PRINTK
  674. bool
  675. config HOTPLUG_CPU
  676. bool
  677. default n
  678. config I8259
  679. bool
  680. config MIPS_BONITO64
  681. bool
  682. config MIPS_MSC
  683. bool
  684. config MIPS_NILE4
  685. bool
  686. config MIPS_DISABLE_OBSOLETE_IDE
  687. bool
  688. config NO_IOPORT
  689. def_bool n
  690. config GENERIC_ISA_DMA
  691. bool
  692. select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
  693. config GENERIC_ISA_DMA_SUPPORT_BROKEN
  694. bool
  695. select GENERIC_ISA_DMA
  696. config GENERIC_GPIO
  697. bool
  698. #
  699. # Endianess selection. Sufficiently obscure so many users don't know what to
  700. # answer,so we try hard to limit the available choices. Also the use of a
  701. # choice statement should be more obvious to the user.
  702. #
  703. choice
  704. prompt "Endianess selection"
  705. help
  706. Some MIPS machines can be configured for either little or big endian
  707. byte order. These modes require different kernels and a different
  708. Linux distribution. In general there is one preferred byteorder for a
  709. particular system but some systems are just as commonly used in the
  710. one or the other endianness.
  711. config CPU_BIG_ENDIAN
  712. bool "Big endian"
  713. depends on SYS_SUPPORTS_BIG_ENDIAN
  714. config CPU_LITTLE_ENDIAN
  715. bool "Little endian"
  716. depends on SYS_SUPPORTS_LITTLE_ENDIAN
  717. help
  718. endchoice
  719. config SYS_SUPPORTS_APM_EMULATION
  720. bool
  721. config SYS_SUPPORTS_BIG_ENDIAN
  722. bool
  723. config SYS_SUPPORTS_LITTLE_ENDIAN
  724. bool
  725. config IRQ_CPU
  726. bool
  727. config IRQ_CPU_RM7K
  728. bool
  729. config IRQ_CPU_RM9K
  730. bool
  731. config IRQ_MSP_SLP
  732. bool
  733. config IRQ_MSP_CIC
  734. bool
  735. config IRQ_TXX9
  736. bool
  737. config IRQ_GT641XX
  738. bool
  739. config MIPS_BOARDS_GEN
  740. bool
  741. config PCI_GT64XXX_PCI0
  742. bool
  743. config NO_EXCEPT_FILL
  744. bool
  745. config MIPS_TX3927
  746. bool
  747. select HAS_TXX9_SERIAL
  748. config MIPS_RM9122
  749. bool
  750. select SERIAL_RM9000
  751. config PNX8550
  752. bool
  753. select SOC_PNX8550
  754. config SOC_PNX8550
  755. bool
  756. select DMA_NONCOHERENT
  757. select HW_HAS_PCI
  758. select SYS_HAS_CPU_MIPS32_R1
  759. select SYS_HAS_EARLY_PRINTK
  760. select SYS_SUPPORTS_32BIT_KERNEL
  761. select GENERIC_HARDIRQS_NO__DO_IRQ
  762. select SYS_SUPPORTS_KGDB
  763. select GENERIC_GPIO
  764. config SWAP_IO_SPACE
  765. bool
  766. config EMMA2RH
  767. bool
  768. depends on MARKEINS
  769. default y
  770. config SERIAL_RM9000
  771. bool
  772. config ARC32
  773. bool
  774. config BOOT_ELF32
  775. bool
  776. config MIPS_L1_CACHE_SHIFT
  777. int
  778. default "4" if MACH_DECSTATION
  779. default "7" if SGI_IP27 || SNI_RM
  780. default "4" if PMC_MSP4200_EVAL
  781. default "5"
  782. config HAVE_STD_PC_SERIAL_PORT
  783. bool
  784. config ARC_CONSOLE
  785. bool "ARC console support"
  786. depends on SGI_IP22 || (SNI_RM && CPU_LITTLE_ENDIAN)
  787. config ARC_MEMORY
  788. bool
  789. depends on MACH_JAZZ || SNI_RM || SGI_IP32
  790. default y
  791. config ARC_PROMLIB
  792. bool
  793. depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP32
  794. default y
  795. config ARC64
  796. bool
  797. config BOOT_ELF64
  798. bool
  799. menu "CPU selection"
  800. source "kernel/time/Kconfig"
  801. choice
  802. prompt "CPU type"
  803. default CPU_R4X00
  804. config CPU_LOONGSON2
  805. bool "Loongson 2"
  806. depends on SYS_HAS_CPU_LOONGSON2
  807. select CPU_SUPPORTS_32BIT_KERNEL
  808. select CPU_SUPPORTS_64BIT_KERNEL
  809. select CPU_SUPPORTS_HIGHMEM
  810. help
  811. The Loongson 2E processor implements the MIPS III instruction set
  812. with many extensions.
  813. config CPU_MIPS32_R1
  814. bool "MIPS32 Release 1"
  815. depends on SYS_HAS_CPU_MIPS32_R1
  816. select CPU_HAS_LLSC
  817. select CPU_HAS_PREFETCH
  818. select CPU_SUPPORTS_32BIT_KERNEL
  819. select CPU_SUPPORTS_HIGHMEM
  820. help
  821. Choose this option to build a kernel for release 1 or later of the
  822. MIPS32 architecture. Most modern embedded systems with a 32-bit
  823. MIPS processor are based on a MIPS32 processor. If you know the
  824. specific type of processor in your system, choose those that one
  825. otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
  826. Release 2 of the MIPS32 architecture is available since several
  827. years so chances are you even have a MIPS32 Release 2 processor
  828. in which case you should choose CPU_MIPS32_R2 instead for better
  829. performance.
  830. config CPU_MIPS32_R2
  831. bool "MIPS32 Release 2"
  832. depends on SYS_HAS_CPU_MIPS32_R2
  833. select CPU_HAS_LLSC
  834. select CPU_HAS_PREFETCH
  835. select CPU_SUPPORTS_32BIT_KERNEL
  836. select CPU_SUPPORTS_HIGHMEM
  837. help
  838. Choose this option to build a kernel for release 2 or later of the
  839. MIPS32 architecture. Most modern embedded systems with a 32-bit
  840. MIPS processor are based on a MIPS32 processor. If you know the
  841. specific type of processor in your system, choose those that one
  842. otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
  843. config CPU_MIPS64_R1
  844. bool "MIPS64 Release 1"
  845. depends on SYS_HAS_CPU_MIPS64_R1
  846. select CPU_HAS_LLSC
  847. select CPU_HAS_PREFETCH
  848. select CPU_SUPPORTS_32BIT_KERNEL
  849. select CPU_SUPPORTS_64BIT_KERNEL
  850. select CPU_SUPPORTS_HIGHMEM
  851. help
  852. Choose this option to build a kernel for release 1 or later of the
  853. MIPS64 architecture. Many modern embedded systems with a 64-bit
  854. MIPS processor are based on a MIPS64 processor. If you know the
  855. specific type of processor in your system, choose those that one
  856. otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
  857. Release 2 of the MIPS64 architecture is available since several
  858. years so chances are you even have a MIPS64 Release 2 processor
  859. in which case you should choose CPU_MIPS64_R2 instead for better
  860. performance.
  861. config CPU_MIPS64_R2
  862. bool "MIPS64 Release 2"
  863. depends on SYS_HAS_CPU_MIPS64_R2
  864. select CPU_HAS_LLSC
  865. select CPU_HAS_PREFETCH
  866. select CPU_SUPPORTS_32BIT_KERNEL
  867. select CPU_SUPPORTS_64BIT_KERNEL
  868. select CPU_SUPPORTS_HIGHMEM
  869. help
  870. Choose this option to build a kernel for release 2 or later of the
  871. MIPS64 architecture. Many modern embedded systems with a 64-bit
  872. MIPS processor are based on a MIPS64 processor. If you know the
  873. specific type of processor in your system, choose those that one
  874. otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
  875. config CPU_R3000
  876. bool "R3000"
  877. depends on SYS_HAS_CPU_R3000
  878. select CPU_HAS_WB
  879. select CPU_SUPPORTS_32BIT_KERNEL
  880. select CPU_SUPPORTS_HIGHMEM
  881. help
  882. Please make sure to pick the right CPU type. Linux/MIPS is not
  883. designed to be generic, i.e. Kernels compiled for R3000 CPUs will
  884. *not* work on R4000 machines and vice versa. However, since most
  885. of the supported machines have an R4000 (or similar) CPU, R4x00
  886. might be a safe bet. If the resulting kernel does not work,
  887. try to recompile with R3000.
  888. config CPU_TX39XX
  889. bool "R39XX"
  890. depends on SYS_HAS_CPU_TX39XX
  891. select CPU_SUPPORTS_32BIT_KERNEL
  892. config CPU_VR41XX
  893. bool "R41xx"
  894. depends on SYS_HAS_CPU_VR41XX
  895. select CPU_SUPPORTS_32BIT_KERNEL
  896. select CPU_SUPPORTS_64BIT_KERNEL
  897. help
  898. The options selects support for the NEC VR4100 series of processors.
  899. Only choose this option if you have one of these processors as a
  900. kernel built with this option will not run on any other type of
  901. processor or vice versa.
  902. config CPU_R4300
  903. bool "R4300"
  904. depends on SYS_HAS_CPU_R4300
  905. select CPU_HAS_LLSC
  906. select CPU_SUPPORTS_32BIT_KERNEL
  907. select CPU_SUPPORTS_64BIT_KERNEL
  908. help
  909. MIPS Technologies R4300-series processors.
  910. config CPU_R4X00
  911. bool "R4x00"
  912. depends on SYS_HAS_CPU_R4X00
  913. select CPU_HAS_LLSC
  914. select CPU_SUPPORTS_32BIT_KERNEL
  915. select CPU_SUPPORTS_64BIT_KERNEL
  916. help
  917. MIPS Technologies R4000-series processors other than 4300, including
  918. the R4000, R4400, R4600, and 4700.
  919. config CPU_TX49XX
  920. bool "R49XX"
  921. depends on SYS_HAS_CPU_TX49XX
  922. select CPU_HAS_LLSC
  923. select CPU_HAS_PREFETCH
  924. select CPU_SUPPORTS_32BIT_KERNEL
  925. select CPU_SUPPORTS_64BIT_KERNEL
  926. config CPU_R5000
  927. bool "R5000"
  928. depends on SYS_HAS_CPU_R5000
  929. select CPU_HAS_LLSC
  930. select CPU_SUPPORTS_32BIT_KERNEL
  931. select CPU_SUPPORTS_64BIT_KERNEL
  932. help
  933. MIPS Technologies R5000-series processors other than the Nevada.
  934. config CPU_R5432
  935. bool "R5432"
  936. depends on SYS_HAS_CPU_R5432
  937. select CPU_HAS_LLSC
  938. select CPU_SUPPORTS_32BIT_KERNEL
  939. select CPU_SUPPORTS_64BIT_KERNEL
  940. config CPU_R6000
  941. bool "R6000"
  942. depends on EXPERIMENTAL
  943. select CPU_HAS_LLSC
  944. depends on SYS_HAS_CPU_R6000
  945. select CPU_SUPPORTS_32BIT_KERNEL
  946. help
  947. MIPS Technologies R6000 and R6000A series processors. Note these
  948. processors are extremely rare and the support for them is incomplete.
  949. config CPU_NEVADA
  950. bool "RM52xx"
  951. depends on SYS_HAS_CPU_NEVADA
  952. select CPU_HAS_LLSC
  953. select CPU_SUPPORTS_32BIT_KERNEL
  954. select CPU_SUPPORTS_64BIT_KERNEL
  955. help
  956. QED / PMC-Sierra RM52xx-series ("Nevada") processors.
  957. config CPU_R8000
  958. bool "R8000"
  959. depends on EXPERIMENTAL
  960. depends on SYS_HAS_CPU_R8000
  961. select CPU_HAS_LLSC
  962. select CPU_HAS_PREFETCH
  963. select CPU_SUPPORTS_64BIT_KERNEL
  964. help
  965. MIPS Technologies R8000 processors. Note these processors are
  966. uncommon and the support for them is incomplete.
  967. config CPU_R10000
  968. bool "R10000"
  969. depends on SYS_HAS_CPU_R10000
  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. MIPS Technologies R10000-series processors.
  977. config CPU_RM7000
  978. bool "RM7000"
  979. depends on SYS_HAS_CPU_RM7000
  980. select CPU_HAS_LLSC
  981. select CPU_HAS_PREFETCH
  982. select CPU_SUPPORTS_32BIT_KERNEL
  983. select CPU_SUPPORTS_64BIT_KERNEL
  984. select CPU_SUPPORTS_HIGHMEM
  985. config CPU_RM9000
  986. bool "RM9000"
  987. depends on SYS_HAS_CPU_RM9000
  988. select CPU_HAS_LLSC
  989. select CPU_HAS_PREFETCH
  990. select CPU_SUPPORTS_32BIT_KERNEL
  991. select CPU_SUPPORTS_64BIT_KERNEL
  992. select CPU_SUPPORTS_HIGHMEM
  993. select WEAK_ORDERING
  994. config CPU_SB1
  995. bool "SB1"
  996. depends on SYS_HAS_CPU_SB1
  997. select CPU_HAS_LLSC
  998. select CPU_SUPPORTS_32BIT_KERNEL
  999. select CPU_SUPPORTS_64BIT_KERNEL
  1000. select CPU_SUPPORTS_HIGHMEM
  1001. select WEAK_ORDERING
  1002. endchoice
  1003. config SYS_HAS_CPU_LOONGSON2
  1004. bool
  1005. config SYS_HAS_CPU_MIPS32_R1
  1006. bool
  1007. config SYS_HAS_CPU_MIPS32_R2
  1008. bool
  1009. config SYS_HAS_CPU_MIPS64_R1
  1010. bool
  1011. config SYS_HAS_CPU_MIPS64_R2
  1012. bool
  1013. config SYS_HAS_CPU_R3000
  1014. bool
  1015. config SYS_HAS_CPU_TX39XX
  1016. bool
  1017. config SYS_HAS_CPU_VR41XX
  1018. bool
  1019. config SYS_HAS_CPU_R4300
  1020. bool
  1021. config SYS_HAS_CPU_R4X00
  1022. bool
  1023. config SYS_HAS_CPU_TX49XX
  1024. bool
  1025. config SYS_HAS_CPU_R5000
  1026. bool
  1027. config SYS_HAS_CPU_R5432
  1028. bool
  1029. config SYS_HAS_CPU_R6000
  1030. bool
  1031. config SYS_HAS_CPU_NEVADA
  1032. bool
  1033. config SYS_HAS_CPU_R8000
  1034. bool
  1035. config SYS_HAS_CPU_R10000
  1036. bool
  1037. config SYS_HAS_CPU_RM7000
  1038. bool
  1039. config SYS_HAS_CPU_RM9000
  1040. bool
  1041. config SYS_HAS_CPU_SB1
  1042. bool
  1043. #
  1044. # CPU may reorder R->R, R->W, W->R, W->W
  1045. # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
  1046. #
  1047. config WEAK_ORDERING
  1048. bool
  1049. #
  1050. # CPU may reorder reads and writes beyond LL/SC
  1051. # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
  1052. #
  1053. config WEAK_REORDERING_BEYOND_LLSC
  1054. bool
  1055. endmenu
  1056. #
  1057. # These two indicate any level of the MIPS32 and MIPS64 architecture
  1058. #
  1059. config CPU_MIPS32
  1060. bool
  1061. default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
  1062. config CPU_MIPS64
  1063. bool
  1064. default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
  1065. #
  1066. # These two indicate the revision of the architecture, either Release 1 or Release 2
  1067. #
  1068. config CPU_MIPSR1
  1069. bool
  1070. default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
  1071. config CPU_MIPSR2
  1072. bool
  1073. default y if CPU_MIPS32_R2 || CPU_MIPS64_R2
  1074. config SYS_SUPPORTS_32BIT_KERNEL
  1075. bool
  1076. config SYS_SUPPORTS_64BIT_KERNEL
  1077. bool
  1078. config CPU_SUPPORTS_32BIT_KERNEL
  1079. bool
  1080. config CPU_SUPPORTS_64BIT_KERNEL
  1081. bool
  1082. menu "Kernel type"
  1083. choice
  1084. prompt "Kernel code model"
  1085. help
  1086. You should only select this option if you have a workload that
  1087. actually benefits from 64-bit processing or if your machine has
  1088. large memory. You will only be presented a single option in this
  1089. menu if your system does not support both 32-bit and 64-bit kernels.
  1090. config 32BIT
  1091. bool "32-bit kernel"
  1092. depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
  1093. select TRAD_SIGNALS
  1094. help
  1095. Select this option if you want to build a 32-bit kernel.
  1096. config 64BIT
  1097. bool "64-bit kernel"
  1098. depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
  1099. help
  1100. Select this option if you want to build a 64-bit kernel.
  1101. endchoice
  1102. choice
  1103. prompt "Kernel page size"
  1104. default PAGE_SIZE_4KB
  1105. config PAGE_SIZE_4KB
  1106. bool "4kB"
  1107. help
  1108. This option select the standard 4kB Linux page size. On some
  1109. R3000-family processors this is the only available page size. Using
  1110. 4kB page size will minimize memory consumption and is therefore
  1111. recommended for low memory systems.
  1112. config PAGE_SIZE_8KB
  1113. bool "8kB"
  1114. depends on EXPERIMENTAL && CPU_R8000
  1115. help
  1116. Using 8kB page size will result in higher performance kernel at
  1117. the price of higher memory consumption. This option is available
  1118. only on the R8000 processor. Not that at the time of this writing
  1119. this option is still high experimental; there are also issues with
  1120. compatibility of user applications.
  1121. config PAGE_SIZE_16KB
  1122. bool "16kB"
  1123. depends on !CPU_R3000 && !CPU_TX39XX
  1124. help
  1125. Using 16kB page size will result in higher performance kernel at
  1126. the price of higher memory consumption. This option is available on
  1127. all non-R3000 family processors. Note that you will need a suitable
  1128. Linux distribution to support this.
  1129. config PAGE_SIZE_64KB
  1130. bool "64kB"
  1131. depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
  1132. help
  1133. Using 64kB page size will result in higher performance kernel at
  1134. the price of higher memory consumption. This option is available on
  1135. all non-R3000 family processor. Not that at the time of this
  1136. writing this option is still high experimental.
  1137. endchoice
  1138. config BOARD_SCACHE
  1139. bool
  1140. config IP22_CPU_SCACHE
  1141. bool
  1142. select BOARD_SCACHE
  1143. #
  1144. # Support for a MIPS32 / MIPS64 style S-caches
  1145. #
  1146. config MIPS_CPU_SCACHE
  1147. bool
  1148. select BOARD_SCACHE
  1149. config R5000_CPU_SCACHE
  1150. bool
  1151. select BOARD_SCACHE
  1152. config RM7000_CPU_SCACHE
  1153. bool
  1154. select BOARD_SCACHE
  1155. config SIBYTE_DMA_PAGEOPS
  1156. bool "Use DMA to clear/copy pages"
  1157. depends on CPU_SB1
  1158. help
  1159. Instead of using the CPU to zero and copy pages, use a Data Mover
  1160. channel. These DMA channels are otherwise unused by the standard
  1161. SiByte Linux port. Seems to give a small performance benefit.
  1162. config CPU_HAS_PREFETCH
  1163. bool
  1164. choice
  1165. prompt "MIPS MT options"
  1166. config MIPS_MT_DISABLED
  1167. bool "Disable multithreading support."
  1168. help
  1169. Use this option if your workload can't take advantage of
  1170. MIPS hardware multithreading support. On systems that don't have
  1171. the option of an MT-enabled processor this option will be the only
  1172. option in this menu.
  1173. config MIPS_MT_SMP
  1174. bool "Use 1 TC on each available VPE for SMP"
  1175. depends on SYS_SUPPORTS_MULTITHREADING
  1176. select CPU_MIPSR2_IRQ_VI
  1177. select CPU_MIPSR2_IRQ_EI
  1178. select CPU_MIPSR2_SRS
  1179. select MIPS_MT
  1180. select NR_CPUS_DEFAULT_2
  1181. select SMP
  1182. select SYS_SUPPORTS_SMP
  1183. help
  1184. This is a kernel model which is also known a VSMP or lately
  1185. has been marketesed into SMVP.
  1186. config MIPS_MT_SMTC
  1187. bool "SMTC: Use all TCs on all VPEs for SMP"
  1188. depends on CPU_MIPS32_R2
  1189. #depends on CPU_MIPS64_R2 # once there is hardware ...
  1190. depends on SYS_SUPPORTS_MULTITHREADING
  1191. select GENERIC_CLOCKEVENTS_BROADCAST
  1192. select CPU_MIPSR2_IRQ_VI
  1193. select CPU_MIPSR2_IRQ_EI
  1194. select CPU_MIPSR2_SRS
  1195. select MIPS_MT
  1196. select NR_CPUS_DEFAULT_8
  1197. select SMP
  1198. select SYS_SUPPORTS_SMP
  1199. help
  1200. This is a kernel model which is known a SMTC or lately has been
  1201. marketesed into SMVP.
  1202. endchoice
  1203. config MIPS_MT
  1204. bool
  1205. config SYS_SUPPORTS_MULTITHREADING
  1206. bool
  1207. config MIPS_MT_FPAFF
  1208. bool "Dynamic FPU affinity for FP-intensive threads"
  1209. default y
  1210. depends on MIPS_MT_SMP || MIPS_MT_SMTC
  1211. config MIPS_VPE_LOADER
  1212. bool "VPE loader support."
  1213. depends on SYS_SUPPORTS_MULTITHREADING
  1214. select CPU_MIPSR2_IRQ_VI
  1215. select CPU_MIPSR2_IRQ_EI
  1216. select CPU_MIPSR2_SRS
  1217. select MIPS_MT
  1218. help
  1219. Includes a loader for loading an elf relocatable object
  1220. onto another VPE and running it.
  1221. config MIPS_MT_SMTC_INSTANT_REPLAY
  1222. bool "Low-latency Dispatch of Deferred SMTC IPIs"
  1223. depends on MIPS_MT_SMTC && !PREEMPT
  1224. default y
  1225. help
  1226. SMTC pseudo-interrupts between TCs are deferred and queued
  1227. if the target TC is interrupt-inhibited (IXMT). In the first
  1228. SMTC prototypes, these queued IPIs were serviced on return
  1229. to user mode, or on entry into the kernel idle loop. The
  1230. INSTANT_REPLAY option dispatches them as part of local_irq_restore()
  1231. processing, which adds runtime overhead (hence the option to turn
  1232. it off), but ensures that IPIs are handled promptly even under
  1233. heavy I/O interrupt load.
  1234. config MIPS_MT_SMTC_IM_BACKSTOP
  1235. bool "Use per-TC register bits as backstop for inhibited IM bits"
  1236. depends on MIPS_MT_SMTC
  1237. default y
  1238. help
  1239. To support multiple TC microthreads acting as "CPUs" within
  1240. a VPE, VPE-wide interrupt mask bits must be specially manipulated
  1241. during interrupt handling. To support legacy drivers and interrupt
  1242. controller management code, SMTC has a "backstop" to track and
  1243. if necessary restore the interrupt mask. This has some performance
  1244. impact on interrupt service overhead. Disable it only if you know
  1245. what you are doing.
  1246. config MIPS_MT_SMTC_IRQAFF
  1247. bool "Support IRQ affinity API"
  1248. depends on MIPS_MT_SMTC
  1249. default n
  1250. help
  1251. Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
  1252. for SMTC Linux kernel. Requires platform support, of which
  1253. an example can be found in the MIPS kernel i8259 and Malta
  1254. platform code. It is recommended that MIPS_MT_SMTC_INSTANT_REPLAY
  1255. be enabled if MIPS_MT_SMTC_IRQAFF is used. Adds overhead to
  1256. interrupt dispatch, and should be used only if you know what
  1257. you are doing.
  1258. config MIPS_VPE_LOADER_TOM
  1259. bool "Load VPE program into memory hidden from linux"
  1260. depends on MIPS_VPE_LOADER
  1261. default y
  1262. help
  1263. The loader can use memory that is present but has been hidden from
  1264. Linux using the kernel command line option "mem=xxMB". It's up to
  1265. you to ensure the amount you put in the option and the space your
  1266. program requires is less or equal to the amount physically present.
  1267. # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
  1268. config MIPS_VPE_APSP_API
  1269. bool "Enable support for AP/SP API (RTLX)"
  1270. depends on MIPS_VPE_LOADER
  1271. help
  1272. config MIPS_APSP_KSPD
  1273. bool "Enable KSPD"
  1274. depends on MIPS_VPE_APSP_API
  1275. default y
  1276. help
  1277. KSPD is a kernel daemon that accepts syscall requests from the SP
  1278. side, actions them and returns the results. It also handles the
  1279. "exit" syscall notifying other kernel modules the SP program is
  1280. exiting. You probably want to say yes here.
  1281. config SB1_PASS_1_WORKAROUNDS
  1282. bool
  1283. depends on CPU_SB1_PASS_1
  1284. default y
  1285. config SB1_PASS_2_WORKAROUNDS
  1286. bool
  1287. depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
  1288. default y
  1289. config SB1_PASS_2_1_WORKAROUNDS
  1290. bool
  1291. depends on CPU_SB1 && CPU_SB1_PASS_2
  1292. default y
  1293. config 64BIT_PHYS_ADDR
  1294. bool
  1295. config CPU_HAS_LLSC
  1296. bool
  1297. config CPU_HAS_SMARTMIPS
  1298. depends on SYS_SUPPORTS_SMARTMIPS
  1299. bool "Support for the SmartMIPS ASE"
  1300. help
  1301. SmartMIPS is a extension of the MIPS32 architecture aimed at
  1302. increased security at both hardware and software level for
  1303. smartcards. Enabling this option will allow proper use of the
  1304. SmartMIPS instructions by Linux applications. However a kernel with
  1305. this option will not work on a MIPS core without SmartMIPS core. If
  1306. you don't know you probably don't have SmartMIPS and should say N
  1307. here.
  1308. config CPU_HAS_WB
  1309. bool
  1310. config 64BIT_CONTEXT
  1311. bool "Save 64bit integer registers"
  1312. depends on 32BIT && CPU_LOONGSON2
  1313. help
  1314. Loongson2 CPU is 64bit , when used in 32BIT mode, its integer
  1315. registers can still be accessed as 64bit, mainly for multimedia
  1316. instructions. We must have all 64bit save/restored to make sure
  1317. those instructions to get correct result.
  1318. #
  1319. # Vectored interrupt mode is an R2 feature
  1320. #
  1321. config CPU_MIPSR2_IRQ_VI
  1322. bool
  1323. #
  1324. # Extended interrupt mode is an R2 feature
  1325. #
  1326. config CPU_MIPSR2_IRQ_EI
  1327. bool
  1328. #
  1329. # Shadow registers are an R2 feature
  1330. #
  1331. config CPU_MIPSR2_SRS
  1332. bool
  1333. config CPU_HAS_SYNC
  1334. bool
  1335. depends on !CPU_R3000
  1336. default y
  1337. config GENERIC_CLOCKEVENTS_BROADCAST
  1338. bool
  1339. #
  1340. # Use the generic interrupt handling code in kernel/irq/:
  1341. #
  1342. config GENERIC_HARDIRQS
  1343. bool
  1344. default y
  1345. config GENERIC_IRQ_PROBE
  1346. bool
  1347. default y
  1348. config IRQ_PER_CPU
  1349. bool
  1350. #
  1351. # - Highmem only makes sense for the 32-bit kernel.
  1352. # - The current highmem code will only work properly on physically indexed
  1353. # caches such as R3000, SB1, R7000 or those that look like they're virtually
  1354. # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
  1355. # moment we protect the user and offer the highmem option only on machines
  1356. # where it's known to be safe. This will not offer highmem on a few systems
  1357. # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
  1358. # indexed CPUs but we're playing safe.
  1359. # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
  1360. # know they might have memory configurations that could make use of highmem
  1361. # support.
  1362. #
  1363. config HIGHMEM
  1364. bool "High Memory Support"
  1365. depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
  1366. config CPU_SUPPORTS_HIGHMEM
  1367. bool
  1368. config SYS_SUPPORTS_HIGHMEM
  1369. bool
  1370. config SYS_SUPPORTS_SMARTMIPS
  1371. bool
  1372. config ARCH_FLATMEM_ENABLE
  1373. def_bool y
  1374. depends on !NUMA
  1375. config ARCH_DISCONTIGMEM_ENABLE
  1376. bool
  1377. default y if SGI_IP27
  1378. help
  1379. Say Y to support efficient handling of discontiguous physical memory,
  1380. for architectures which are either NUMA (Non-Uniform Memory Access)
  1381. or have huge holes in the physical address space for other reasons.
  1382. See <file:Documentation/vm/numa> for more.
  1383. config ARCH_SPARSEMEM_ENABLE
  1384. bool
  1385. select SPARSEMEM_STATIC
  1386. config NUMA
  1387. bool "NUMA Support"
  1388. depends on SYS_SUPPORTS_NUMA
  1389. help
  1390. Say Y to compile the kernel to support NUMA (Non-Uniform Memory
  1391. Access). This option improves performance on systems with more
  1392. than two nodes; on two node systems it is generally better to
  1393. leave it disabled; on single node systems disable this option
  1394. disabled.
  1395. config SYS_SUPPORTS_NUMA
  1396. bool
  1397. config NODES_SHIFT
  1398. int
  1399. default "6"
  1400. depends on NEED_MULTIPLE_NODES
  1401. source "mm/Kconfig"
  1402. config SMP
  1403. bool "Multi-Processing support"
  1404. depends on SYS_SUPPORTS_SMP
  1405. select IRQ_PER_CPU
  1406. help
  1407. This enables support for systems with more than one CPU. If you have
  1408. a system with only one CPU, like most personal computers, say N. If
  1409. you have a system with more than one CPU, say Y.
  1410. If you say N here, the kernel will run on single and multiprocessor
  1411. machines, but will use only one CPU of a multiprocessor machine. If
  1412. you say Y here, the kernel will run on many, but not all,
  1413. singleprocessor machines. On a singleprocessor machine, the kernel
  1414. will run faster if you say N here.
  1415. People using multiprocessor machines who say Y here should also say
  1416. Y to "Enhanced Real Time Clock Support", below.
  1417. See also the <file:Documentation/smp.txt> and the SMP-HOWTO
  1418. available at <http://www.tldp.org/docs.html#howto>.
  1419. If you don't know what to do here, say N.
  1420. config SYS_SUPPORTS_SMP
  1421. bool
  1422. config NR_CPUS_DEFAULT_1
  1423. bool
  1424. config NR_CPUS_DEFAULT_2
  1425. bool
  1426. config NR_CPUS_DEFAULT_4
  1427. bool
  1428. config NR_CPUS_DEFAULT_8
  1429. bool
  1430. config NR_CPUS_DEFAULT_16
  1431. bool
  1432. config NR_CPUS_DEFAULT_32
  1433. bool
  1434. config NR_CPUS_DEFAULT_64
  1435. bool
  1436. config NR_CPUS
  1437. int "Maximum number of CPUs (2-64)"
  1438. range 1 64 if NR_CPUS_DEFAULT_1
  1439. depends on SMP
  1440. default "1" if NR_CPUS_DEFAULT_1
  1441. default "2" if NR_CPUS_DEFAULT_2
  1442. default "4" if NR_CPUS_DEFAULT_4
  1443. default "8" if NR_CPUS_DEFAULT_8
  1444. default "16" if NR_CPUS_DEFAULT_16
  1445. default "32" if NR_CPUS_DEFAULT_32
  1446. default "64" if NR_CPUS_DEFAULT_64
  1447. help
  1448. This allows you to specify the maximum number of CPUs which this
  1449. kernel will support. The maximum supported value is 32 for 32-bit
  1450. kernel and 64 for 64-bit kernels; the minimum value which makes
  1451. sense is 1 for Qemu (useful only for kernel debugging purposes)
  1452. and 2 for all others.
  1453. This is purely to save memory - each supported CPU adds
  1454. approximately eight kilobytes to the kernel image. For best
  1455. performance should round up your number of processors to the next
  1456. power of two.
  1457. #
  1458. # Timer Interrupt Frequency Configuration
  1459. #
  1460. choice
  1461. prompt "Timer frequency"
  1462. default HZ_250
  1463. help
  1464. Allows the configuration of the timer frequency.
  1465. config HZ_48
  1466. bool "48 HZ" if SYS_SUPPORTS_48HZ
  1467. config HZ_100
  1468. bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
  1469. config HZ_128
  1470. bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
  1471. config HZ_250
  1472. bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
  1473. config HZ_256
  1474. bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
  1475. config HZ_1000
  1476. bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
  1477. config HZ_1024
  1478. bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
  1479. endchoice
  1480. config SYS_SUPPORTS_48HZ
  1481. bool
  1482. config SYS_SUPPORTS_100HZ
  1483. bool
  1484. config SYS_SUPPORTS_128HZ
  1485. bool
  1486. config SYS_SUPPORTS_250HZ
  1487. bool
  1488. config SYS_SUPPORTS_256HZ
  1489. bool
  1490. config SYS_SUPPORTS_1000HZ
  1491. bool
  1492. config SYS_SUPPORTS_1024HZ
  1493. bool
  1494. config SYS_SUPPORTS_ARBIT_HZ
  1495. bool
  1496. default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
  1497. !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
  1498. !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
  1499. !SYS_SUPPORTS_1024HZ
  1500. config HZ
  1501. int
  1502. default 48 if HZ_48
  1503. default 100 if HZ_100
  1504. default 128 if HZ_128
  1505. default 250 if HZ_250
  1506. default 256 if HZ_256
  1507. default 1000 if HZ_1000
  1508. default 1024 if HZ_1024
  1509. source "kernel/Kconfig.preempt"
  1510. config MIPS_INSANE_LARGE
  1511. bool "Support for large 64-bit configurations"
  1512. depends on CPU_R10000 && 64BIT
  1513. help
  1514. MIPS R10000 does support a 44 bit / 16TB address space as opposed to
  1515. previous 64-bit processors which only supported 40 bit / 1TB. If you
  1516. need processes of more than 1TB virtual address space, say Y here.
  1517. This will result in additional memory usage, so it is not
  1518. recommended for normal users.
  1519. config KEXEC
  1520. bool "Kexec system call (EXPERIMENTAL)"
  1521. depends on EXPERIMENTAL
  1522. help
  1523. kexec is a system call that implements the ability to shutdown your
  1524. current kernel, and to start another kernel. It is like a reboot
  1525. but it is independent of the system firmware. And like a reboot
  1526. you can start any kernel with it, not just Linux.
  1527. The name comes from the similiarity to the exec system call.
  1528. It is an ongoing process to be certain the hardware in a machine
  1529. is properly shutdown, so do not be surprised if this code does not
  1530. initially work for you. It may help to enable device hotplugging
  1531. support. As of this writing the exact hardware interface is
  1532. strongly in flux, so no good recommendation can be made.
  1533. config SECCOMP
  1534. bool "Enable seccomp to safely compute untrusted bytecode"
  1535. depends on PROC_FS
  1536. default y
  1537. help
  1538. This kernel feature is useful for number crunching applications
  1539. that may need to compute untrusted bytecode during their
  1540. execution. By using pipes or other transports made available to
  1541. the process as file descriptors supporting the read/write
  1542. syscalls, it's possible to isolate those applications in
  1543. their own address space using seccomp. Once seccomp is
  1544. enabled via /proc/<pid>/seccomp, it cannot be disabled
  1545. and the task is only allowed to execute a few safe syscalls
  1546. defined by each seccomp mode.
  1547. If unsure, say Y. Only embedded should say N here.
  1548. endmenu
  1549. config RWSEM_GENERIC_SPINLOCK
  1550. bool
  1551. default y
  1552. config LOCKDEP_SUPPORT
  1553. bool
  1554. default y
  1555. config STACKTRACE_SUPPORT
  1556. bool
  1557. default y
  1558. source "init/Kconfig"
  1559. menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
  1560. config HW_HAS_EISA
  1561. bool
  1562. config HW_HAS_PCI
  1563. bool
  1564. config PCI
  1565. bool "Support for PCI controller"
  1566. depends on HW_HAS_PCI
  1567. select PCI_DOMAINS
  1568. help
  1569. Find out whether you have a PCI motherboard. PCI is the name of a
  1570. bus system, i.e. the way the CPU talks to the other stuff inside
  1571. your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
  1572. say Y, otherwise N.
  1573. The PCI-HOWTO, available from
  1574. <http://www.tldp.org/docs.html#howto>, contains valuable
  1575. information about which PCI hardware does work under Linux and which
  1576. doesn't.
  1577. config PCI_DOMAINS
  1578. bool
  1579. source "drivers/pci/Kconfig"
  1580. #
  1581. # ISA support is now enabled via select. Too many systems still have the one
  1582. # or other ISA chip on the board that users don't know about so don't expect
  1583. # users to choose the right thing ...
  1584. #
  1585. config ISA
  1586. bool
  1587. config EISA
  1588. bool "EISA support"
  1589. depends on HW_HAS_EISA
  1590. select ISA
  1591. select GENERIC_ISA_DMA
  1592. ---help---
  1593. The Extended Industry Standard Architecture (EISA) bus was
  1594. developed as an open alternative to the IBM MicroChannel bus.
  1595. The EISA bus provided some of the features of the IBM MicroChannel
  1596. bus while maintaining backward compatibility with cards made for
  1597. the older ISA bus. The EISA bus saw limited use between 1988 and
  1598. 1995 when it was made obsolete by the PCI bus.
  1599. Say Y here if you are building a kernel for an EISA-based machine.
  1600. Otherwise, say N.
  1601. source "drivers/eisa/Kconfig"
  1602. config TC
  1603. bool "TURBOchannel support"
  1604. depends on MACH_DECSTATION
  1605. help
  1606. TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
  1607. processors. Documentation on writing device drivers for TurboChannel
  1608. is available at:
  1609. <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
  1610. #config ACCESSBUS
  1611. # bool "Access.Bus support"
  1612. # depends on TC
  1613. config MMU
  1614. bool
  1615. default y
  1616. config I8253
  1617. bool
  1618. config PCSPEAKER
  1619. bool
  1620. source "drivers/pcmcia/Kconfig"
  1621. source "drivers/pci/hotplug/Kconfig"
  1622. endmenu
  1623. menu "Executable file formats"
  1624. source "fs/Kconfig.binfmt"
  1625. config TRAD_SIGNALS
  1626. bool
  1627. config BINFMT_IRIX
  1628. bool "Include IRIX binary compatibility"
  1629. depends on CPU_BIG_ENDIAN && 32BIT && BROKEN
  1630. config MIPS32_COMPAT
  1631. bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
  1632. depends on 64BIT
  1633. help
  1634. Select this option if you want Linux/MIPS 32-bit binary
  1635. compatibility. Since all software available for Linux/MIPS is
  1636. currently 32-bit you should say Y here.
  1637. config COMPAT
  1638. bool
  1639. depends on MIPS32_COMPAT
  1640. default y
  1641. config SYSVIPC_COMPAT
  1642. bool
  1643. depends on COMPAT && SYSVIPC
  1644. default y
  1645. config MIPS32_O32
  1646. bool "Kernel support for o32 binaries"
  1647. depends on MIPS32_COMPAT
  1648. help
  1649. Select this option if you want to run o32 binaries. These are pure
  1650. 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
  1651. existing binaries are in this format.
  1652. If unsure, say Y.
  1653. config MIPS32_N32
  1654. bool "Kernel support for n32 binaries"
  1655. depends on MIPS32_COMPAT
  1656. help
  1657. Select this option if you want to run n32 binaries. These are
  1658. 64-bit binaries using 32-bit quantities for addressing and certain
  1659. data that would normally be 64-bit. They are used in special
  1660. cases.
  1661. If unsure, say N.
  1662. config BINFMT_ELF32
  1663. bool
  1664. default y if MIPS32_O32 || MIPS32_N32
  1665. endmenu
  1666. menu "Power management options"
  1667. source "kernel/power/Kconfig"
  1668. endmenu
  1669. source "net/Kconfig"
  1670. source "drivers/Kconfig"
  1671. source "fs/Kconfig"
  1672. source "arch/mips/oprofile/Kconfig"
  1673. source "arch/mips/Kconfig.debug"
  1674. source "security/Kconfig"
  1675. source "crypto/Kconfig"
  1676. source "lib/Kconfig"