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