Kconfig 61 KB

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  1. config MIPS
  2. bool
  3. default y
  4. select HAVE_GENERIC_DMA_COHERENT
  5. select HAVE_IDE
  6. select HAVE_OPROFILE
  7. select HAVE_IRQ_WORK
  8. select HAVE_PERF_EVENTS
  9. select PERF_USE_VMALLOC
  10. select HAVE_ARCH_KGDB
  11. select ARCH_HAVE_CUSTOM_GPIO_H
  12. select HAVE_FUNCTION_TRACER
  13. select HAVE_FUNCTION_TRACE_MCOUNT_TEST
  14. select HAVE_DYNAMIC_FTRACE
  15. select HAVE_FTRACE_MCOUNT_RECORD
  16. select HAVE_C_RECORDMCOUNT
  17. select HAVE_FUNCTION_GRAPH_TRACER
  18. select HAVE_KPROBES
  19. select HAVE_KRETPROBES
  20. select ARCH_BINFMT_ELF_RANDOMIZE_PIE
  21. select RTC_LIB if !MACH_LOONGSON
  22. select GENERIC_ATOMIC64 if !64BIT
  23. select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
  24. select HAVE_DMA_ATTRS
  25. select HAVE_DMA_API_DEBUG
  26. select HAVE_GENERIC_HARDIRQS
  27. select GENERIC_IRQ_PROBE
  28. select GENERIC_IRQ_SHOW
  29. select HAVE_ARCH_JUMP_LABEL
  30. select ARCH_WANT_IPC_PARSE_VERSION
  31. select IRQ_FORCED_THREADING
  32. select HAVE_MEMBLOCK
  33. select HAVE_MEMBLOCK_NODE_MAP
  34. select ARCH_DISCARD_MEMBLOCK
  35. select GENERIC_SMP_IDLE_THREAD
  36. select BUILDTIME_EXTABLE_SORT
  37. select GENERIC_CLOCKEVENTS
  38. select GENERIC_CMOS_UPDATE
  39. menu "Machine selection"
  40. config ZONE_DMA
  41. bool
  42. choice
  43. prompt "System type"
  44. default SGI_IP22
  45. config MIPS_ALCHEMY
  46. bool "Alchemy processor based machines"
  47. select 64BIT_PHYS_ADDR
  48. select CEVT_R4K_LIB
  49. select CSRC_R4K_LIB
  50. select IRQ_CPU
  51. select SYS_HAS_CPU_MIPS32_R1
  52. select SYS_SUPPORTS_32BIT_KERNEL
  53. select SYS_SUPPORTS_APM_EMULATION
  54. select GENERIC_GPIO
  55. select ARCH_WANT_OPTIONAL_GPIOLIB
  56. select SYS_SUPPORTS_ZBOOT
  57. select USB_ARCH_HAS_OHCI
  58. select USB_ARCH_HAS_EHCI
  59. config AR7
  60. bool "Texas Instruments AR7"
  61. select BOOT_ELF32
  62. select DMA_NONCOHERENT
  63. select CEVT_R4K
  64. select CSRC_R4K
  65. select IRQ_CPU
  66. select NO_EXCEPT_FILL
  67. select SWAP_IO_SPACE
  68. select SYS_HAS_CPU_MIPS32_R1
  69. select SYS_HAS_EARLY_PRINTK
  70. select SYS_SUPPORTS_32BIT_KERNEL
  71. select SYS_SUPPORTS_LITTLE_ENDIAN
  72. select SYS_SUPPORTS_ZBOOT_UART16550
  73. select ARCH_REQUIRE_GPIOLIB
  74. select VLYNQ
  75. select HAVE_CLK
  76. help
  77. Support for the Texas Instruments AR7 System-on-a-Chip
  78. family: TNETD7100, 7200 and 7300.
  79. config ATH79
  80. bool "Atheros AR71XX/AR724X/AR913X based boards"
  81. select ARCH_REQUIRE_GPIOLIB
  82. select BOOT_RAW
  83. select CEVT_R4K
  84. select CSRC_R4K
  85. select DMA_NONCOHERENT
  86. select IRQ_CPU
  87. select MIPS_MACHINE
  88. select SYS_HAS_CPU_MIPS32_R2
  89. select SYS_HAS_EARLY_PRINTK
  90. select SYS_SUPPORTS_32BIT_KERNEL
  91. select SYS_SUPPORTS_BIG_ENDIAN
  92. help
  93. Support for the Atheros AR71XX/AR724X/AR913X SoCs.
  94. config BCM47XX
  95. bool "Broadcom BCM47XX based boards"
  96. select CEVT_R4K
  97. select CSRC_R4K
  98. select DMA_NONCOHERENT
  99. select HW_HAS_PCI
  100. select IRQ_CPU
  101. select SYS_SUPPORTS_32BIT_KERNEL
  102. select SYS_SUPPORTS_LITTLE_ENDIAN
  103. select GENERIC_GPIO
  104. select SYS_HAS_EARLY_PRINTK
  105. select CFE
  106. help
  107. Support for BCM47XX based boards
  108. config BCM63XX
  109. bool "Broadcom BCM63XX based boards"
  110. select CEVT_R4K
  111. select CSRC_R4K
  112. select DMA_NONCOHERENT
  113. select IRQ_CPU
  114. select SYS_HAS_CPU_MIPS32_R1
  115. select SYS_SUPPORTS_32BIT_KERNEL
  116. select SYS_SUPPORTS_BIG_ENDIAN
  117. select SYS_HAS_EARLY_PRINTK
  118. select SWAP_IO_SPACE
  119. select ARCH_REQUIRE_GPIOLIB
  120. select HAVE_CLK
  121. help
  122. Support for BCM63XX based boards
  123. config MIPS_COBALT
  124. bool "Cobalt Server"
  125. select CEVT_R4K
  126. select CSRC_R4K
  127. select CEVT_GT641XX
  128. select DMA_NONCOHERENT
  129. select HW_HAS_PCI
  130. select I8253
  131. select I8259
  132. select IRQ_CPU
  133. select IRQ_GT641XX
  134. select PCI_GT64XXX_PCI0
  135. select PCI
  136. select SYS_HAS_CPU_NEVADA
  137. select SYS_HAS_EARLY_PRINTK
  138. select SYS_SUPPORTS_32BIT_KERNEL
  139. select SYS_SUPPORTS_64BIT_KERNEL
  140. select SYS_SUPPORTS_LITTLE_ENDIAN
  141. config MACH_DECSTATION
  142. bool "DECstations"
  143. select BOOT_ELF32
  144. select CEVT_DS1287
  145. select CEVT_R4K
  146. select CSRC_IOASIC
  147. select CSRC_R4K
  148. select CPU_DADDI_WORKAROUNDS if 64BIT
  149. select CPU_R4000_WORKAROUNDS if 64BIT
  150. select CPU_R4400_WORKAROUNDS if 64BIT
  151. select DMA_NONCOHERENT
  152. select NO_IOPORT
  153. select IRQ_CPU
  154. select SYS_HAS_CPU_R3000
  155. select SYS_HAS_CPU_R4X00
  156. select SYS_SUPPORTS_32BIT_KERNEL
  157. select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
  158. select SYS_SUPPORTS_LITTLE_ENDIAN
  159. select SYS_SUPPORTS_128HZ
  160. select SYS_SUPPORTS_256HZ
  161. select SYS_SUPPORTS_1024HZ
  162. help
  163. This enables support for DEC's MIPS based workstations. For details
  164. see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
  165. DECstation porting pages on <http://decstation.unix-ag.org/>.
  166. If you have one of the following DECstation Models you definitely
  167. want to choose R4xx0 for the CPU Type:
  168. DECstation 5000/50
  169. DECstation 5000/150
  170. DECstation 5000/260
  171. DECsystem 5900/260
  172. otherwise choose R3000.
  173. config MACH_JAZZ
  174. bool "Jazz family of machines"
  175. select ARC
  176. select ARC32
  177. select ARCH_MAY_HAVE_PC_FDC
  178. select CEVT_R4K
  179. select CSRC_R4K
  180. select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
  181. select GENERIC_ISA_DMA
  182. select HAVE_PCSPKR_PLATFORM
  183. select IRQ_CPU
  184. select I8253
  185. select I8259
  186. select ISA
  187. select SYS_HAS_CPU_R4X00
  188. select SYS_SUPPORTS_32BIT_KERNEL
  189. select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
  190. select SYS_SUPPORTS_100HZ
  191. help
  192. This a family of machines based on the MIPS R4030 chipset which was
  193. used by several vendors to build RISC/os and Windows NT workstations.
  194. Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
  195. Olivetti M700-10 workstations.
  196. config MACH_JZ4740
  197. bool "Ingenic JZ4740 based machines"
  198. select SYS_HAS_CPU_MIPS32_R1
  199. select SYS_SUPPORTS_32BIT_KERNEL
  200. select SYS_SUPPORTS_LITTLE_ENDIAN
  201. select SYS_SUPPORTS_ZBOOT_UART16550
  202. select DMA_NONCOHERENT
  203. select IRQ_CPU
  204. select GENERIC_GPIO
  205. select ARCH_REQUIRE_GPIOLIB
  206. select SYS_HAS_EARLY_PRINTK
  207. select HAVE_PWM
  208. select HAVE_CLK
  209. select GENERIC_IRQ_CHIP
  210. config LANTIQ
  211. bool "Lantiq based platforms"
  212. select DMA_NONCOHERENT
  213. select IRQ_CPU
  214. select CEVT_R4K
  215. select CSRC_R4K
  216. select SYS_HAS_CPU_MIPS32_R1
  217. select SYS_HAS_CPU_MIPS32_R2
  218. select SYS_SUPPORTS_BIG_ENDIAN
  219. select SYS_SUPPORTS_32BIT_KERNEL
  220. select SYS_SUPPORTS_MULTITHREADING
  221. select SYS_HAS_EARLY_PRINTK
  222. select ARCH_REQUIRE_GPIOLIB
  223. select SWAP_IO_SPACE
  224. select BOOT_RAW
  225. select HAVE_MACH_CLKDEV
  226. select CLKDEV_LOOKUP
  227. select USE_OF
  228. config LASAT
  229. bool "LASAT Networks platforms"
  230. select CEVT_R4K
  231. select CSRC_R4K
  232. select DMA_NONCOHERENT
  233. select SYS_HAS_EARLY_PRINTK
  234. select HW_HAS_PCI
  235. select IRQ_CPU
  236. select PCI_GT64XXX_PCI0
  237. select MIPS_NILE4
  238. select R5000_CPU_SCACHE
  239. select SYS_HAS_CPU_R5000
  240. select SYS_SUPPORTS_32BIT_KERNEL
  241. select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
  242. select SYS_SUPPORTS_LITTLE_ENDIAN
  243. config MACH_LOONGSON
  244. bool "Loongson family of machines"
  245. select SYS_SUPPORTS_ZBOOT
  246. help
  247. This enables the support of Loongson family of machines.
  248. Loongson is a family of general-purpose MIPS-compatible CPUs.
  249. developed at Institute of Computing Technology (ICT),
  250. Chinese Academy of Sciences (CAS) in the People's Republic
  251. of China. The chief architect is Professor Weiwu Hu.
  252. config MACH_LOONGSON1
  253. bool "Loongson 1 family of machines"
  254. select SYS_SUPPORTS_ZBOOT
  255. help
  256. This enables support for the Loongson 1 based machines.
  257. Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
  258. the ICT (Institute of Computing Technology) and the Chinese Academy
  259. of Sciences.
  260. config MIPS_MALTA
  261. bool "MIPS Malta board"
  262. select ARCH_MAY_HAVE_PC_FDC
  263. select BOOT_ELF32
  264. select BOOT_RAW
  265. select CEVT_R4K
  266. select CSRC_R4K
  267. select DMA_NONCOHERENT
  268. select GENERIC_ISA_DMA
  269. select HAVE_PCSPKR_PLATFORM
  270. select IRQ_CPU
  271. select IRQ_GIC
  272. select HW_HAS_PCI
  273. select I8253
  274. select I8259
  275. select MIPS_BOARDS_GEN
  276. select MIPS_BONITO64
  277. select MIPS_CPU_SCACHE
  278. select PCI_GT64XXX_PCI0
  279. select MIPS_MSC
  280. select SWAP_IO_SPACE
  281. select SYS_HAS_CPU_MIPS32_R1
  282. select SYS_HAS_CPU_MIPS32_R2
  283. select SYS_HAS_CPU_MIPS64_R1
  284. select SYS_HAS_CPU_MIPS64_R2
  285. select SYS_HAS_CPU_NEVADA
  286. select SYS_HAS_CPU_RM7000
  287. select SYS_HAS_EARLY_PRINTK
  288. select SYS_SUPPORTS_32BIT_KERNEL
  289. select SYS_SUPPORTS_64BIT_KERNEL
  290. select SYS_SUPPORTS_BIG_ENDIAN
  291. select SYS_SUPPORTS_LITTLE_ENDIAN
  292. select SYS_SUPPORTS_MIPS_CMP
  293. select SYS_SUPPORTS_MULTITHREADING
  294. select SYS_SUPPORTS_SMARTMIPS
  295. select SYS_SUPPORTS_ZBOOT
  296. help
  297. This enables support for the MIPS Technologies Malta evaluation
  298. board.
  299. config MIPS_SIM
  300. bool 'MIPS simulator (MIPSsim)'
  301. select CEVT_R4K
  302. select CSRC_R4K
  303. select DMA_NONCOHERENT
  304. select SYS_HAS_EARLY_PRINTK
  305. select IRQ_CPU
  306. select BOOT_RAW
  307. select SYS_HAS_CPU_MIPS32_R1
  308. select SYS_HAS_CPU_MIPS32_R2
  309. select SYS_HAS_EARLY_PRINTK
  310. select SYS_SUPPORTS_32BIT_KERNEL
  311. select SYS_SUPPORTS_BIG_ENDIAN
  312. select SYS_SUPPORTS_MULTITHREADING
  313. select SYS_SUPPORTS_LITTLE_ENDIAN
  314. help
  315. This option enables support for MIPS Technologies MIPSsim software
  316. emulator.
  317. config NEC_MARKEINS
  318. bool "NEC EMMA2RH Mark-eins board"
  319. select SOC_EMMA2RH
  320. select HW_HAS_PCI
  321. help
  322. This enables support for the NEC Electronics Mark-eins boards.
  323. config MACH_VR41XX
  324. bool "NEC VR4100 series based machines"
  325. select CEVT_R4K
  326. select CSRC_R4K
  327. select SYS_HAS_CPU_VR41XX
  328. select ARCH_REQUIRE_GPIOLIB
  329. config NXP_STB220
  330. bool "NXP STB220 board"
  331. select SOC_PNX833X
  332. help
  333. Support for NXP Semiconductors STB220 Development Board.
  334. config NXP_STB225
  335. bool "NXP 225 board"
  336. select SOC_PNX833X
  337. select SOC_PNX8335
  338. help
  339. Support for NXP Semiconductors STB225 Development Board.
  340. config PNX8550_JBS
  341. bool "NXP PNX8550 based JBS board"
  342. select PNX8550
  343. select SYS_SUPPORTS_LITTLE_ENDIAN
  344. config PNX8550_STB810
  345. bool "NXP PNX8550 based STB810 board"
  346. select PNX8550
  347. select SYS_SUPPORTS_LITTLE_ENDIAN
  348. config PMC_MSP
  349. bool "PMC-Sierra MSP chipsets"
  350. depends on EXPERIMENTAL
  351. select CEVT_R4K
  352. select CSRC_R4K
  353. select DMA_NONCOHERENT
  354. select SWAP_IO_SPACE
  355. select NO_EXCEPT_FILL
  356. select BOOT_RAW
  357. select SYS_HAS_CPU_MIPS32_R1
  358. select SYS_HAS_CPU_MIPS32_R2
  359. select SYS_SUPPORTS_32BIT_KERNEL
  360. select SYS_SUPPORTS_BIG_ENDIAN
  361. select IRQ_CPU
  362. select SERIAL_8250
  363. select SERIAL_8250_CONSOLE
  364. help
  365. This adds support for the PMC-Sierra family of Multi-Service
  366. Processor System-On-A-Chips. These parts include a number
  367. of integrated peripherals, interfaces and DSPs in addition to
  368. a variety of MIPS cores.
  369. config PMC_YOSEMITE
  370. bool "PMC-Sierra Yosemite eval board"
  371. select CEVT_R4K
  372. select CSRC_R4K
  373. select DMA_COHERENT
  374. select HW_HAS_PCI
  375. select IRQ_CPU
  376. select IRQ_CPU_RM7K
  377. select IRQ_CPU_RM9K
  378. select SWAP_IO_SPACE
  379. select SYS_HAS_CPU_RM9000
  380. select SYS_HAS_EARLY_PRINTK
  381. select SYS_SUPPORTS_32BIT_KERNEL
  382. select SYS_SUPPORTS_64BIT_KERNEL
  383. select SYS_SUPPORTS_BIG_ENDIAN
  384. select SYS_SUPPORTS_HIGHMEM
  385. select SYS_SUPPORTS_SMP
  386. help
  387. Yosemite is an evaluation board for the RM9000x2 processor
  388. manufactured by PMC-Sierra.
  389. config POWERTV
  390. bool "Cisco PowerTV"
  391. select BOOT_ELF32
  392. select CEVT_R4K
  393. select CPU_MIPSR2_IRQ_VI
  394. select CPU_MIPSR2_IRQ_EI
  395. select CSRC_POWERTV
  396. select DMA_NONCOHERENT
  397. select HW_HAS_PCI
  398. select SYS_HAS_EARLY_PRINTK
  399. select SYS_HAS_CPU_MIPS32_R2
  400. select SYS_SUPPORTS_32BIT_KERNEL
  401. select SYS_SUPPORTS_BIG_ENDIAN
  402. select SYS_SUPPORTS_HIGHMEM
  403. select USB_OHCI_LITTLE_ENDIAN
  404. help
  405. This enables support for the Cisco PowerTV Platform.
  406. config SGI_IP22
  407. bool "SGI IP22 (Indy/Indigo2)"
  408. select ARC
  409. select ARC32
  410. select BOOT_ELF32
  411. select CEVT_R4K
  412. select CSRC_R4K
  413. select DEFAULT_SGI_PARTITION
  414. select DMA_NONCOHERENT
  415. select HW_HAS_EISA
  416. select I8253
  417. select I8259
  418. select IP22_CPU_SCACHE
  419. select IRQ_CPU
  420. select GENERIC_ISA_DMA_SUPPORT_BROKEN
  421. select SGI_HAS_I8042
  422. select SGI_HAS_INDYDOG
  423. select SGI_HAS_HAL2
  424. select SGI_HAS_SEEQ
  425. select SGI_HAS_WD93
  426. select SGI_HAS_ZILOG
  427. select SWAP_IO_SPACE
  428. select SYS_HAS_CPU_R4X00
  429. select SYS_HAS_CPU_R5000
  430. #
  431. # Disable EARLY_PRINTK for now since it leads to overwritten prom
  432. # memory during early boot on some machines.
  433. #
  434. # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
  435. # for a more details discussion
  436. #
  437. # select SYS_HAS_EARLY_PRINTK
  438. select SYS_SUPPORTS_32BIT_KERNEL
  439. select SYS_SUPPORTS_64BIT_KERNEL
  440. select SYS_SUPPORTS_BIG_ENDIAN
  441. help
  442. This are the SGI Indy, Challenge S and Indigo2, as well as certain
  443. OEM variants like the Tandem CMN B006S. To compile a Linux kernel
  444. that runs on these, say Y here.
  445. config SGI_IP27
  446. bool "SGI IP27 (Origin200/2000)"
  447. select ARC
  448. select ARC64
  449. select BOOT_ELF64
  450. select DEFAULT_SGI_PARTITION
  451. select DMA_COHERENT
  452. select SYS_HAS_EARLY_PRINTK
  453. select HW_HAS_PCI
  454. select NR_CPUS_DEFAULT_64
  455. select SYS_HAS_CPU_R10000
  456. select SYS_SUPPORTS_64BIT_KERNEL
  457. select SYS_SUPPORTS_BIG_ENDIAN
  458. select SYS_SUPPORTS_NUMA
  459. select SYS_SUPPORTS_SMP
  460. help
  461. This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
  462. workstations. To compile a Linux kernel that runs on these, say Y
  463. here.
  464. config SGI_IP28
  465. bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
  466. depends on EXPERIMENTAL
  467. select ARC
  468. select ARC64
  469. select BOOT_ELF64
  470. select CEVT_R4K
  471. select CSRC_R4K
  472. select DEFAULT_SGI_PARTITION
  473. select DMA_NONCOHERENT
  474. select GENERIC_ISA_DMA_SUPPORT_BROKEN
  475. select IRQ_CPU
  476. select HW_HAS_EISA
  477. select I8253
  478. select I8259
  479. select SGI_HAS_I8042
  480. select SGI_HAS_INDYDOG
  481. select SGI_HAS_HAL2
  482. select SGI_HAS_SEEQ
  483. select SGI_HAS_WD93
  484. select SGI_HAS_ZILOG
  485. select SWAP_IO_SPACE
  486. select SYS_HAS_CPU_R10000
  487. #
  488. # Disable EARLY_PRINTK for now since it leads to overwritten prom
  489. # memory during early boot on some machines.
  490. #
  491. # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
  492. # for a more details discussion
  493. #
  494. # select SYS_HAS_EARLY_PRINTK
  495. select SYS_SUPPORTS_64BIT_KERNEL
  496. select SYS_SUPPORTS_BIG_ENDIAN
  497. help
  498. This is the SGI Indigo2 with R10000 processor. To compile a Linux
  499. kernel that runs on these, say Y here.
  500. config SGI_IP32
  501. bool "SGI IP32 (O2)"
  502. select ARC
  503. select ARC32
  504. select BOOT_ELF32
  505. select CEVT_R4K
  506. select CSRC_R4K
  507. select DMA_NONCOHERENT
  508. select HW_HAS_PCI
  509. select IRQ_CPU
  510. select R5000_CPU_SCACHE
  511. select RM7000_CPU_SCACHE
  512. select SYS_HAS_CPU_R5000
  513. select SYS_HAS_CPU_R10000 if BROKEN
  514. select SYS_HAS_CPU_RM7000
  515. select SYS_HAS_CPU_NEVADA
  516. select SYS_SUPPORTS_64BIT_KERNEL
  517. select SYS_SUPPORTS_BIG_ENDIAN
  518. help
  519. If you want this kernel to run on SGI O2 workstation, say Y here.
  520. config SIBYTE_CRHINE
  521. bool "Sibyte BCM91120C-CRhine"
  522. depends on EXPERIMENTAL
  523. select BOOT_ELF32
  524. select DMA_COHERENT
  525. select SIBYTE_BCM1120
  526. select SWAP_IO_SPACE
  527. select SYS_HAS_CPU_SB1
  528. select SYS_SUPPORTS_BIG_ENDIAN
  529. select SYS_SUPPORTS_LITTLE_ENDIAN
  530. config SIBYTE_CARMEL
  531. bool "Sibyte BCM91120x-Carmel"
  532. depends on EXPERIMENTAL
  533. select BOOT_ELF32
  534. select DMA_COHERENT
  535. select SIBYTE_BCM1120
  536. select SWAP_IO_SPACE
  537. select SYS_HAS_CPU_SB1
  538. select SYS_SUPPORTS_BIG_ENDIAN
  539. select SYS_SUPPORTS_LITTLE_ENDIAN
  540. config SIBYTE_CRHONE
  541. bool "Sibyte BCM91125C-CRhone"
  542. depends on EXPERIMENTAL
  543. select BOOT_ELF32
  544. select DMA_COHERENT
  545. select SIBYTE_BCM1125
  546. select SWAP_IO_SPACE
  547. select SYS_HAS_CPU_SB1
  548. select SYS_SUPPORTS_BIG_ENDIAN
  549. select SYS_SUPPORTS_HIGHMEM
  550. select SYS_SUPPORTS_LITTLE_ENDIAN
  551. config SIBYTE_RHONE
  552. bool "Sibyte BCM91125E-Rhone"
  553. depends on EXPERIMENTAL
  554. select BOOT_ELF32
  555. select DMA_COHERENT
  556. select SIBYTE_BCM1125H
  557. select SWAP_IO_SPACE
  558. select SYS_HAS_CPU_SB1
  559. select SYS_SUPPORTS_BIG_ENDIAN
  560. select SYS_SUPPORTS_LITTLE_ENDIAN
  561. config SIBYTE_SWARM
  562. bool "Sibyte BCM91250A-SWARM"
  563. select BOOT_ELF32
  564. select DMA_COHERENT
  565. select HAVE_PATA_PLATFORM
  566. select NR_CPUS_DEFAULT_2
  567. select SIBYTE_SB1250
  568. select SWAP_IO_SPACE
  569. select SYS_HAS_CPU_SB1
  570. select SYS_SUPPORTS_BIG_ENDIAN
  571. select SYS_SUPPORTS_HIGHMEM
  572. select SYS_SUPPORTS_LITTLE_ENDIAN
  573. select ZONE_DMA32 if 64BIT
  574. config SIBYTE_LITTLESUR
  575. bool "Sibyte BCM91250C2-LittleSur"
  576. depends on EXPERIMENTAL
  577. select BOOT_ELF32
  578. select DMA_COHERENT
  579. select HAVE_PATA_PLATFORM
  580. select NR_CPUS_DEFAULT_2
  581. select SIBYTE_SB1250
  582. select SWAP_IO_SPACE
  583. select SYS_HAS_CPU_SB1
  584. select SYS_SUPPORTS_BIG_ENDIAN
  585. select SYS_SUPPORTS_HIGHMEM
  586. select SYS_SUPPORTS_LITTLE_ENDIAN
  587. config SIBYTE_SENTOSA
  588. bool "Sibyte BCM91250E-Sentosa"
  589. depends on EXPERIMENTAL
  590. select BOOT_ELF32
  591. select DMA_COHERENT
  592. select NR_CPUS_DEFAULT_2
  593. select SIBYTE_SB1250
  594. select SWAP_IO_SPACE
  595. select SYS_HAS_CPU_SB1
  596. select SYS_SUPPORTS_BIG_ENDIAN
  597. select SYS_SUPPORTS_LITTLE_ENDIAN
  598. config SIBYTE_BIGSUR
  599. bool "Sibyte BCM91480B-BigSur"
  600. select BOOT_ELF32
  601. select DMA_COHERENT
  602. select NR_CPUS_DEFAULT_4
  603. select SIBYTE_BCM1x80
  604. select SWAP_IO_SPACE
  605. select SYS_HAS_CPU_SB1
  606. select SYS_SUPPORTS_BIG_ENDIAN
  607. select SYS_SUPPORTS_HIGHMEM
  608. select SYS_SUPPORTS_LITTLE_ENDIAN
  609. select ZONE_DMA32 if 64BIT
  610. config SNI_RM
  611. bool "SNI RM200/300/400"
  612. select ARC if CPU_LITTLE_ENDIAN
  613. select ARC32 if CPU_LITTLE_ENDIAN
  614. select SNIPROM if CPU_BIG_ENDIAN
  615. select ARCH_MAY_HAVE_PC_FDC
  616. select BOOT_ELF32
  617. select CEVT_R4K
  618. select CSRC_R4K
  619. select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
  620. select DMA_NONCOHERENT
  621. select GENERIC_ISA_DMA
  622. select HAVE_PCSPKR_PLATFORM
  623. select HW_HAS_EISA
  624. select HW_HAS_PCI
  625. select IRQ_CPU
  626. select I8253
  627. select I8259
  628. select ISA
  629. select SWAP_IO_SPACE if CPU_BIG_ENDIAN
  630. select SYS_HAS_CPU_R4X00
  631. select SYS_HAS_CPU_R5000
  632. select SYS_HAS_CPU_R10000
  633. select R5000_CPU_SCACHE
  634. select SYS_HAS_EARLY_PRINTK
  635. select SYS_SUPPORTS_32BIT_KERNEL
  636. select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
  637. select SYS_SUPPORTS_BIG_ENDIAN
  638. select SYS_SUPPORTS_HIGHMEM
  639. select SYS_SUPPORTS_LITTLE_ENDIAN
  640. help
  641. The SNI RM200/300/400 are MIPS-based machines manufactured by
  642. Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
  643. Technology and now in turn merged with Fujitsu. Say Y here to
  644. support this machine type.
  645. config MACH_TX39XX
  646. bool "Toshiba TX39 series based machines"
  647. config MACH_TX49XX
  648. bool "Toshiba TX49 series based machines"
  649. config MIKROTIK_RB532
  650. bool "Mikrotik RB532 boards"
  651. select CEVT_R4K
  652. select CSRC_R4K
  653. select DMA_NONCOHERENT
  654. select HW_HAS_PCI
  655. select IRQ_CPU
  656. select SYS_HAS_CPU_MIPS32_R1
  657. select SYS_SUPPORTS_32BIT_KERNEL
  658. select SYS_SUPPORTS_LITTLE_ENDIAN
  659. select SWAP_IO_SPACE
  660. select BOOT_RAW
  661. select ARCH_REQUIRE_GPIOLIB
  662. help
  663. Support the Mikrotik(tm) RouterBoard 532 series,
  664. based on the IDT RC32434 SoC.
  665. config WR_PPMC
  666. bool "Wind River PPMC board"
  667. select CEVT_R4K
  668. select CSRC_R4K
  669. select IRQ_CPU
  670. select BOOT_ELF32
  671. select DMA_NONCOHERENT
  672. select HW_HAS_PCI
  673. select PCI_GT64XXX_PCI0
  674. select SWAP_IO_SPACE
  675. select SYS_HAS_CPU_MIPS32_R1
  676. select SYS_HAS_CPU_MIPS32_R2
  677. select SYS_HAS_CPU_MIPS64_R1
  678. select SYS_HAS_CPU_NEVADA
  679. select SYS_HAS_CPU_RM7000
  680. select SYS_SUPPORTS_32BIT_KERNEL
  681. select SYS_SUPPORTS_64BIT_KERNEL
  682. select SYS_SUPPORTS_BIG_ENDIAN
  683. select SYS_SUPPORTS_LITTLE_ENDIAN
  684. help
  685. This enables support for the Wind River MIPS32 4KC PPMC evaluation
  686. board, which is based on GT64120 bridge chip.
  687. config CAVIUM_OCTEON_SIMULATOR
  688. bool "Cavium Networks Octeon Simulator"
  689. select CEVT_R4K
  690. select 64BIT_PHYS_ADDR
  691. select DMA_COHERENT
  692. select SYS_SUPPORTS_64BIT_KERNEL
  693. select SYS_SUPPORTS_BIG_ENDIAN
  694. select SYS_SUPPORTS_HOTPLUG_CPU
  695. select SYS_HAS_CPU_CAVIUM_OCTEON
  696. select HOLES_IN_ZONE
  697. help
  698. The Octeon simulator is software performance model of the Cavium
  699. Octeon Processor. It supports simulating Octeon processors on x86
  700. hardware.
  701. config CAVIUM_OCTEON_REFERENCE_BOARD
  702. bool "Cavium Networks Octeon reference board"
  703. select CEVT_R4K
  704. select 64BIT_PHYS_ADDR
  705. select DMA_COHERENT
  706. select SYS_SUPPORTS_64BIT_KERNEL
  707. select SYS_SUPPORTS_BIG_ENDIAN
  708. select SYS_SUPPORTS_HOTPLUG_CPU
  709. select SYS_HAS_EARLY_PRINTK
  710. select SYS_HAS_CPU_CAVIUM_OCTEON
  711. select SWAP_IO_SPACE
  712. select HW_HAS_PCI
  713. select ARCH_SUPPORTS_MSI
  714. select ZONE_DMA32
  715. select USB_ARCH_HAS_OHCI
  716. select USB_ARCH_HAS_EHCI
  717. select HOLES_IN_ZONE
  718. help
  719. This option supports all of the Octeon reference boards from Cavium
  720. Networks. It builds a kernel that dynamically determines the Octeon
  721. CPU type and supports all known board reference implementations.
  722. Some of the supported boards are:
  723. EBT3000
  724. EBH3000
  725. EBH3100
  726. Thunder
  727. Kodama
  728. Hikari
  729. Say Y here for most Octeon reference boards.
  730. config NLM_XLR_BOARD
  731. bool "Netlogic XLR/XLS based systems"
  732. depends on EXPERIMENTAL
  733. select BOOT_ELF32
  734. select NLM_COMMON
  735. select SYS_HAS_CPU_XLR
  736. select SYS_SUPPORTS_SMP
  737. select HW_HAS_PCI
  738. select SWAP_IO_SPACE
  739. select SYS_SUPPORTS_32BIT_KERNEL
  740. select SYS_SUPPORTS_64BIT_KERNEL
  741. select 64BIT_PHYS_ADDR
  742. select SYS_SUPPORTS_BIG_ENDIAN
  743. select SYS_SUPPORTS_HIGHMEM
  744. select DMA_COHERENT
  745. select NR_CPUS_DEFAULT_32
  746. select CEVT_R4K
  747. select CSRC_R4K
  748. select IRQ_CPU
  749. select ARCH_SUPPORTS_MSI
  750. select ZONE_DMA if 64BIT
  751. select SYNC_R4K
  752. select SYS_HAS_EARLY_PRINTK
  753. select USB_ARCH_HAS_OHCI if USB_SUPPORT
  754. select USB_ARCH_HAS_EHCI if USB_SUPPORT
  755. help
  756. Support for systems based on Netlogic XLR and XLS processors.
  757. Say Y here if you have a XLR or XLS based board.
  758. config NLM_XLP_BOARD
  759. bool "Netlogic XLP based systems"
  760. depends on EXPERIMENTAL
  761. select BOOT_ELF32
  762. select NLM_COMMON
  763. select SYS_HAS_CPU_XLP
  764. select SYS_SUPPORTS_SMP
  765. select HW_HAS_PCI
  766. select SYS_SUPPORTS_32BIT_KERNEL
  767. select SYS_SUPPORTS_64BIT_KERNEL
  768. select 64BIT_PHYS_ADDR
  769. select SYS_SUPPORTS_BIG_ENDIAN
  770. select SYS_SUPPORTS_LITTLE_ENDIAN
  771. select SYS_SUPPORTS_HIGHMEM
  772. select DMA_COHERENT
  773. select NR_CPUS_DEFAULT_32
  774. select CEVT_R4K
  775. select CSRC_R4K
  776. select IRQ_CPU
  777. select ZONE_DMA if 64BIT
  778. select SYNC_R4K
  779. select SYS_HAS_EARLY_PRINTK
  780. select USE_OF
  781. help
  782. This board is based on Netlogic XLP Processor.
  783. Say Y here if you have a XLP based board.
  784. endchoice
  785. source "arch/mips/alchemy/Kconfig"
  786. source "arch/mips/ath79/Kconfig"
  787. source "arch/mips/bcm47xx/Kconfig"
  788. source "arch/mips/bcm63xx/Kconfig"
  789. source "arch/mips/jazz/Kconfig"
  790. source "arch/mips/jz4740/Kconfig"
  791. source "arch/mips/lantiq/Kconfig"
  792. source "arch/mips/lasat/Kconfig"
  793. source "arch/mips/pmc-sierra/Kconfig"
  794. source "arch/mips/powertv/Kconfig"
  795. source "arch/mips/sgi-ip27/Kconfig"
  796. source "arch/mips/sibyte/Kconfig"
  797. source "arch/mips/txx9/Kconfig"
  798. source "arch/mips/vr41xx/Kconfig"
  799. source "arch/mips/cavium-octeon/Kconfig"
  800. source "arch/mips/loongson/Kconfig"
  801. source "arch/mips/loongson1/Kconfig"
  802. source "arch/mips/netlogic/Kconfig"
  803. endmenu
  804. config RWSEM_GENERIC_SPINLOCK
  805. bool
  806. default y
  807. config RWSEM_XCHGADD_ALGORITHM
  808. bool
  809. config ARCH_HAS_ILOG2_U32
  810. bool
  811. default n
  812. config ARCH_HAS_ILOG2_U64
  813. bool
  814. default n
  815. config GENERIC_HWEIGHT
  816. bool
  817. default y
  818. config GENERIC_CALIBRATE_DELAY
  819. bool
  820. default y
  821. config SCHED_OMIT_FRAME_POINTER
  822. bool
  823. default y
  824. #
  825. # Select some configuration options automatically based on user selections.
  826. #
  827. config ARC
  828. bool
  829. config ARCH_MAY_HAVE_PC_FDC
  830. bool
  831. config BOOT_RAW
  832. bool
  833. config CEVT_BCM1480
  834. bool
  835. config CEVT_DS1287
  836. bool
  837. config CEVT_GT641XX
  838. bool
  839. config CEVT_R4K_LIB
  840. bool
  841. config CEVT_R4K
  842. select CEVT_R4K_LIB
  843. bool
  844. config CEVT_SB1250
  845. bool
  846. config CEVT_TXX9
  847. bool
  848. config CSRC_BCM1480
  849. bool
  850. config CSRC_IOASIC
  851. bool
  852. config CSRC_POWERTV
  853. bool
  854. config CSRC_R4K_LIB
  855. bool
  856. config CSRC_R4K
  857. select CSRC_R4K_LIB
  858. bool
  859. config CSRC_SB1250
  860. bool
  861. config GPIO_TXX9
  862. select GENERIC_GPIO
  863. select ARCH_REQUIRE_GPIOLIB
  864. bool
  865. config CFE
  866. bool
  867. config ARCH_DMA_ADDR_T_64BIT
  868. def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
  869. config DMA_COHERENT
  870. bool
  871. config DMA_NONCOHERENT
  872. bool
  873. select NEED_DMA_MAP_STATE
  874. config NEED_DMA_MAP_STATE
  875. bool
  876. config SYS_HAS_EARLY_PRINTK
  877. bool
  878. config HOTPLUG_CPU
  879. bool "Support for hot-pluggable CPUs"
  880. depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
  881. help
  882. Say Y here to allow turning CPUs off and on. CPUs can be
  883. controlled through /sys/devices/system/cpu.
  884. (Note: power management support will enable this option
  885. automatically on SMP systems. )
  886. Say N if you want to disable CPU hotplug.
  887. config SYS_SUPPORTS_HOTPLUG_CPU
  888. bool
  889. config I8259
  890. bool
  891. config MIPS_BONITO64
  892. bool
  893. config MIPS_MSC
  894. bool
  895. config MIPS_NILE4
  896. bool
  897. config MIPS_DISABLE_OBSOLETE_IDE
  898. bool
  899. config SYNC_R4K
  900. bool
  901. config MIPS_MACHINE
  902. def_bool n
  903. config NO_IOPORT
  904. def_bool n
  905. config GENERIC_ISA_DMA
  906. bool
  907. select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
  908. select ISA_DMA_API
  909. config GENERIC_ISA_DMA_SUPPORT_BROKEN
  910. bool
  911. select GENERIC_ISA_DMA
  912. config ISA_DMA_API
  913. bool
  914. config GENERIC_GPIO
  915. bool
  916. config HOLES_IN_ZONE
  917. bool
  918. #
  919. # Endianness selection. Sufficiently obscure so many users don't know what to
  920. # answer,so we try hard to limit the available choices. Also the use of a
  921. # choice statement should be more obvious to the user.
  922. #
  923. choice
  924. prompt "Endianness selection"
  925. help
  926. Some MIPS machines can be configured for either little or big endian
  927. byte order. These modes require different kernels and a different
  928. Linux distribution. In general there is one preferred byteorder for a
  929. particular system but some systems are just as commonly used in the
  930. one or the other endianness.
  931. config CPU_BIG_ENDIAN
  932. bool "Big endian"
  933. depends on SYS_SUPPORTS_BIG_ENDIAN
  934. config CPU_LITTLE_ENDIAN
  935. bool "Little endian"
  936. depends on SYS_SUPPORTS_LITTLE_ENDIAN
  937. help
  938. endchoice
  939. config EXPORT_UASM
  940. bool
  941. config SYS_SUPPORTS_APM_EMULATION
  942. bool
  943. config SYS_SUPPORTS_BIG_ENDIAN
  944. bool
  945. config SYS_SUPPORTS_LITTLE_ENDIAN
  946. bool
  947. config SYS_SUPPORTS_HUGETLBFS
  948. bool
  949. depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
  950. default y
  951. config IRQ_CPU
  952. bool
  953. config IRQ_CPU_RM7K
  954. bool
  955. config IRQ_CPU_RM9K
  956. bool
  957. config IRQ_MSP_SLP
  958. bool
  959. config IRQ_MSP_CIC
  960. bool
  961. config IRQ_TXX9
  962. bool
  963. config IRQ_GT641XX
  964. bool
  965. config IRQ_GIC
  966. bool
  967. config MIPS_BOARDS_GEN
  968. bool
  969. config PCI_GT64XXX_PCI0
  970. bool
  971. config NO_EXCEPT_FILL
  972. bool
  973. config MIPS_RM9122
  974. bool
  975. select SERIAL_RM9000
  976. config SOC_EMMA2RH
  977. bool
  978. select CEVT_R4K
  979. select CSRC_R4K
  980. select DMA_NONCOHERENT
  981. select IRQ_CPU
  982. select SWAP_IO_SPACE
  983. select SYS_HAS_CPU_R5500
  984. select SYS_SUPPORTS_32BIT_KERNEL
  985. select SYS_SUPPORTS_64BIT_KERNEL
  986. select SYS_SUPPORTS_BIG_ENDIAN
  987. config SOC_PNX833X
  988. bool
  989. select CEVT_R4K
  990. select CSRC_R4K
  991. select IRQ_CPU
  992. select DMA_NONCOHERENT
  993. select SYS_HAS_CPU_MIPS32_R2
  994. select SYS_SUPPORTS_32BIT_KERNEL
  995. select SYS_SUPPORTS_LITTLE_ENDIAN
  996. select SYS_SUPPORTS_BIG_ENDIAN
  997. select GENERIC_GPIO
  998. select CPU_MIPSR2_IRQ_VI
  999. config SOC_PNX8335
  1000. bool
  1001. select SOC_PNX833X
  1002. config PNX8550
  1003. bool
  1004. select SOC_PNX8550
  1005. config SOC_PNX8550
  1006. bool
  1007. select DMA_NONCOHERENT
  1008. select HW_HAS_PCI
  1009. select SYS_HAS_CPU_MIPS32_R1
  1010. select SYS_HAS_EARLY_PRINTK
  1011. select SYS_SUPPORTS_32BIT_KERNEL
  1012. select GENERIC_GPIO
  1013. config SWAP_IO_SPACE
  1014. bool
  1015. config SERIAL_RM9000
  1016. bool
  1017. config SGI_HAS_INDYDOG
  1018. bool
  1019. config SGI_HAS_HAL2
  1020. bool
  1021. config SGI_HAS_SEEQ
  1022. bool
  1023. config SGI_HAS_WD93
  1024. bool
  1025. config SGI_HAS_ZILOG
  1026. bool
  1027. config SGI_HAS_I8042
  1028. bool
  1029. config DEFAULT_SGI_PARTITION
  1030. bool
  1031. config ARC32
  1032. bool
  1033. config SNIPROM
  1034. bool
  1035. config BOOT_ELF32
  1036. bool
  1037. config MIPS_L1_CACHE_SHIFT
  1038. int
  1039. default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
  1040. default "6" if MIPS_CPU_SCACHE
  1041. default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
  1042. default "5"
  1043. config HAVE_STD_PC_SERIAL_PORT
  1044. bool
  1045. config ARC_CONSOLE
  1046. bool "ARC console support"
  1047. depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
  1048. config ARC_MEMORY
  1049. bool
  1050. depends on MACH_JAZZ || SNI_RM || SGI_IP32
  1051. default y
  1052. config ARC_PROMLIB
  1053. bool
  1054. depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
  1055. default y
  1056. config ARC64
  1057. bool
  1058. config BOOT_ELF64
  1059. bool
  1060. menu "CPU selection"
  1061. choice
  1062. prompt "CPU type"
  1063. default CPU_R4X00
  1064. config CPU_LOONGSON2E
  1065. bool "Loongson 2E"
  1066. depends on SYS_HAS_CPU_LOONGSON2E
  1067. select CPU_LOONGSON2
  1068. help
  1069. The Loongson 2E processor implements the MIPS III instruction set
  1070. with many extensions.
  1071. It has an internal FPGA northbridge, which is compatible to
  1072. bonito64.
  1073. config CPU_LOONGSON2F
  1074. bool "Loongson 2F"
  1075. depends on SYS_HAS_CPU_LOONGSON2F
  1076. select CPU_LOONGSON2
  1077. select GENERIC_GPIO
  1078. select ARCH_REQUIRE_GPIOLIB
  1079. help
  1080. The Loongson 2F processor implements the MIPS III instruction set
  1081. with many extensions.
  1082. Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
  1083. have a similar programming interface with FPGA northbridge used in
  1084. Loongson2E.
  1085. config CPU_LOONGSON1B
  1086. bool "Loongson 1B"
  1087. depends on SYS_HAS_CPU_LOONGSON1B
  1088. select CPU_LOONGSON1
  1089. help
  1090. The Loongson 1B is a 32-bit SoC, which implements the MIPS32
  1091. release 2 instruction set.
  1092. config CPU_MIPS32_R1
  1093. bool "MIPS32 Release 1"
  1094. depends on SYS_HAS_CPU_MIPS32_R1
  1095. select CPU_HAS_PREFETCH
  1096. select CPU_SUPPORTS_32BIT_KERNEL
  1097. select CPU_SUPPORTS_HIGHMEM
  1098. help
  1099. Choose this option to build a kernel for release 1 or later of the
  1100. MIPS32 architecture. Most modern embedded systems with a 32-bit
  1101. MIPS processor are based on a MIPS32 processor. If you know the
  1102. specific type of processor in your system, choose those that one
  1103. otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
  1104. Release 2 of the MIPS32 architecture is available since several
  1105. years so chances are you even have a MIPS32 Release 2 processor
  1106. in which case you should choose CPU_MIPS32_R2 instead for better
  1107. performance.
  1108. config CPU_MIPS32_R2
  1109. bool "MIPS32 Release 2"
  1110. depends on SYS_HAS_CPU_MIPS32_R2
  1111. select CPU_HAS_PREFETCH
  1112. select CPU_SUPPORTS_32BIT_KERNEL
  1113. select CPU_SUPPORTS_HIGHMEM
  1114. help
  1115. Choose this option to build a kernel for release 2 or later of the
  1116. MIPS32 architecture. Most modern embedded systems with a 32-bit
  1117. MIPS processor are based on a MIPS32 processor. If you know the
  1118. specific type of processor in your system, choose those that one
  1119. otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
  1120. config CPU_MIPS64_R1
  1121. bool "MIPS64 Release 1"
  1122. depends on SYS_HAS_CPU_MIPS64_R1
  1123. select CPU_HAS_PREFETCH
  1124. select CPU_SUPPORTS_32BIT_KERNEL
  1125. select CPU_SUPPORTS_64BIT_KERNEL
  1126. select CPU_SUPPORTS_HIGHMEM
  1127. select CPU_SUPPORTS_HUGEPAGES
  1128. help
  1129. Choose this option to build a kernel for release 1 or later of the
  1130. MIPS64 architecture. Many modern embedded systems with a 64-bit
  1131. MIPS processor are based on a MIPS64 processor. If you know the
  1132. specific type of processor in your system, choose those that one
  1133. otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
  1134. Release 2 of the MIPS64 architecture is available since several
  1135. years so chances are you even have a MIPS64 Release 2 processor
  1136. in which case you should choose CPU_MIPS64_R2 instead for better
  1137. performance.
  1138. config CPU_MIPS64_R2
  1139. bool "MIPS64 Release 2"
  1140. depends on SYS_HAS_CPU_MIPS64_R2
  1141. select CPU_HAS_PREFETCH
  1142. select CPU_SUPPORTS_32BIT_KERNEL
  1143. select CPU_SUPPORTS_64BIT_KERNEL
  1144. select CPU_SUPPORTS_HIGHMEM
  1145. select CPU_SUPPORTS_HUGEPAGES
  1146. help
  1147. Choose this option to build a kernel for release 2 or later of the
  1148. MIPS64 architecture. Many modern embedded systems with a 64-bit
  1149. MIPS processor are based on a MIPS64 processor. If you know the
  1150. specific type of processor in your system, choose those that one
  1151. otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
  1152. config CPU_R3000
  1153. bool "R3000"
  1154. depends on SYS_HAS_CPU_R3000
  1155. select CPU_HAS_WB
  1156. select CPU_SUPPORTS_32BIT_KERNEL
  1157. select CPU_SUPPORTS_HIGHMEM
  1158. help
  1159. Please make sure to pick the right CPU type. Linux/MIPS is not
  1160. designed to be generic, i.e. Kernels compiled for R3000 CPUs will
  1161. *not* work on R4000 machines and vice versa. However, since most
  1162. of the supported machines have an R4000 (or similar) CPU, R4x00
  1163. might be a safe bet. If the resulting kernel does not work,
  1164. try to recompile with R3000.
  1165. config CPU_TX39XX
  1166. bool "R39XX"
  1167. depends on SYS_HAS_CPU_TX39XX
  1168. select CPU_SUPPORTS_32BIT_KERNEL
  1169. config CPU_VR41XX
  1170. bool "R41xx"
  1171. depends on SYS_HAS_CPU_VR41XX
  1172. select CPU_SUPPORTS_32BIT_KERNEL
  1173. select CPU_SUPPORTS_64BIT_KERNEL
  1174. help
  1175. The options selects support for the NEC VR4100 series of processors.
  1176. Only choose this option if you have one of these processors as a
  1177. kernel built with this option will not run on any other type of
  1178. processor or vice versa.
  1179. config CPU_R4300
  1180. bool "R4300"
  1181. depends on SYS_HAS_CPU_R4300
  1182. select CPU_SUPPORTS_32BIT_KERNEL
  1183. select CPU_SUPPORTS_64BIT_KERNEL
  1184. help
  1185. MIPS Technologies R4300-series processors.
  1186. config CPU_R4X00
  1187. bool "R4x00"
  1188. depends on SYS_HAS_CPU_R4X00
  1189. select CPU_SUPPORTS_32BIT_KERNEL
  1190. select CPU_SUPPORTS_64BIT_KERNEL
  1191. help
  1192. MIPS Technologies R4000-series processors other than 4300, including
  1193. the R4000, R4400, R4600, and 4700.
  1194. config CPU_TX49XX
  1195. bool "R49XX"
  1196. depends on SYS_HAS_CPU_TX49XX
  1197. select CPU_HAS_PREFETCH
  1198. select CPU_SUPPORTS_32BIT_KERNEL
  1199. select CPU_SUPPORTS_64BIT_KERNEL
  1200. config CPU_R5000
  1201. bool "R5000"
  1202. depends on SYS_HAS_CPU_R5000
  1203. select CPU_SUPPORTS_32BIT_KERNEL
  1204. select CPU_SUPPORTS_64BIT_KERNEL
  1205. help
  1206. MIPS Technologies R5000-series processors other than the Nevada.
  1207. config CPU_R5432
  1208. bool "R5432"
  1209. depends on SYS_HAS_CPU_R5432
  1210. select CPU_SUPPORTS_32BIT_KERNEL
  1211. select CPU_SUPPORTS_64BIT_KERNEL
  1212. config CPU_R5500
  1213. bool "R5500"
  1214. depends on SYS_HAS_CPU_R5500
  1215. select CPU_SUPPORTS_32BIT_KERNEL
  1216. select CPU_SUPPORTS_64BIT_KERNEL
  1217. select CPU_SUPPORTS_HUGEPAGES
  1218. help
  1219. NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
  1220. instruction set.
  1221. config CPU_R6000
  1222. bool "R6000"
  1223. depends on EXPERIMENTAL
  1224. depends on SYS_HAS_CPU_R6000
  1225. select CPU_SUPPORTS_32BIT_KERNEL
  1226. help
  1227. MIPS Technologies R6000 and R6000A series processors. Note these
  1228. processors are extremely rare and the support for them is incomplete.
  1229. config CPU_NEVADA
  1230. bool "RM52xx"
  1231. depends on SYS_HAS_CPU_NEVADA
  1232. select CPU_SUPPORTS_32BIT_KERNEL
  1233. select CPU_SUPPORTS_64BIT_KERNEL
  1234. help
  1235. QED / PMC-Sierra RM52xx-series ("Nevada") processors.
  1236. config CPU_R8000
  1237. bool "R8000"
  1238. depends on EXPERIMENTAL
  1239. depends on SYS_HAS_CPU_R8000
  1240. select CPU_HAS_PREFETCH
  1241. select CPU_SUPPORTS_64BIT_KERNEL
  1242. help
  1243. MIPS Technologies R8000 processors. Note these processors are
  1244. uncommon and the support for them is incomplete.
  1245. config CPU_R10000
  1246. bool "R10000"
  1247. depends on SYS_HAS_CPU_R10000
  1248. select CPU_HAS_PREFETCH
  1249. select CPU_SUPPORTS_32BIT_KERNEL
  1250. select CPU_SUPPORTS_64BIT_KERNEL
  1251. select CPU_SUPPORTS_HIGHMEM
  1252. help
  1253. MIPS Technologies R10000-series processors.
  1254. config CPU_RM7000
  1255. bool "RM7000"
  1256. depends on SYS_HAS_CPU_RM7000
  1257. select CPU_HAS_PREFETCH
  1258. select CPU_SUPPORTS_32BIT_KERNEL
  1259. select CPU_SUPPORTS_64BIT_KERNEL
  1260. select CPU_SUPPORTS_HIGHMEM
  1261. config CPU_RM9000
  1262. bool "RM9000"
  1263. depends on SYS_HAS_CPU_RM9000
  1264. select CPU_HAS_PREFETCH
  1265. select CPU_SUPPORTS_32BIT_KERNEL
  1266. select CPU_SUPPORTS_64BIT_KERNEL
  1267. select CPU_SUPPORTS_HIGHMEM
  1268. select WEAK_ORDERING
  1269. config CPU_SB1
  1270. bool "SB1"
  1271. depends on SYS_HAS_CPU_SB1
  1272. select CPU_SUPPORTS_32BIT_KERNEL
  1273. select CPU_SUPPORTS_64BIT_KERNEL
  1274. select CPU_SUPPORTS_HIGHMEM
  1275. select WEAK_ORDERING
  1276. config CPU_CAVIUM_OCTEON
  1277. bool "Cavium Octeon processor"
  1278. depends on SYS_HAS_CPU_CAVIUM_OCTEON
  1279. select ARCH_SPARSEMEM_ENABLE
  1280. select CPU_HAS_PREFETCH
  1281. select CPU_SUPPORTS_64BIT_KERNEL
  1282. select SYS_SUPPORTS_SMP
  1283. select NR_CPUS_DEFAULT_16
  1284. select WEAK_ORDERING
  1285. select CPU_SUPPORTS_HIGHMEM
  1286. select CPU_SUPPORTS_HUGEPAGES
  1287. select LIBFDT
  1288. select USE_OF
  1289. help
  1290. The Cavium Octeon processor is a highly integrated chip containing
  1291. many ethernet hardware widgets for networking tasks. The processor
  1292. can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
  1293. Full details can be found at http://www.caviumnetworks.com.
  1294. config CPU_BMIPS3300
  1295. bool "BMIPS3300"
  1296. depends on SYS_HAS_CPU_BMIPS3300
  1297. select CPU_BMIPS
  1298. help
  1299. Broadcom BMIPS3300 processors.
  1300. config CPU_BMIPS4350
  1301. bool "BMIPS4350"
  1302. depends on SYS_HAS_CPU_BMIPS4350
  1303. select CPU_BMIPS
  1304. select SYS_SUPPORTS_SMP
  1305. select SYS_SUPPORTS_HOTPLUG_CPU
  1306. help
  1307. Broadcom BMIPS4350 ("VIPER") processors.
  1308. config CPU_BMIPS4380
  1309. bool "BMIPS4380"
  1310. depends on SYS_HAS_CPU_BMIPS4380
  1311. select CPU_BMIPS
  1312. select SYS_SUPPORTS_SMP
  1313. select SYS_SUPPORTS_HOTPLUG_CPU
  1314. help
  1315. Broadcom BMIPS4380 processors.
  1316. config CPU_BMIPS5000
  1317. bool "BMIPS5000"
  1318. depends on SYS_HAS_CPU_BMIPS5000
  1319. select CPU_BMIPS
  1320. select CPU_SUPPORTS_HIGHMEM
  1321. select MIPS_CPU_SCACHE
  1322. select SYS_SUPPORTS_SMP
  1323. select SYS_SUPPORTS_HOTPLUG_CPU
  1324. help
  1325. Broadcom BMIPS5000 processors.
  1326. config CPU_XLR
  1327. bool "Netlogic XLR SoC"
  1328. depends on SYS_HAS_CPU_XLR
  1329. select CPU_SUPPORTS_32BIT_KERNEL
  1330. select CPU_SUPPORTS_64BIT_KERNEL
  1331. select CPU_SUPPORTS_HIGHMEM
  1332. select WEAK_ORDERING
  1333. select WEAK_REORDERING_BEYOND_LLSC
  1334. select CPU_SUPPORTS_HUGEPAGES
  1335. help
  1336. Netlogic Microsystems XLR/XLS processors.
  1337. config CPU_XLP
  1338. bool "Netlogic XLP SoC"
  1339. depends on SYS_HAS_CPU_XLP
  1340. select CPU_SUPPORTS_32BIT_KERNEL
  1341. select CPU_SUPPORTS_64BIT_KERNEL
  1342. select CPU_SUPPORTS_HIGHMEM
  1343. select CPU_HAS_LLSC
  1344. select WEAK_ORDERING
  1345. select WEAK_REORDERING_BEYOND_LLSC
  1346. select CPU_HAS_PREFETCH
  1347. help
  1348. Netlogic Microsystems XLP processors.
  1349. endchoice
  1350. if CPU_LOONGSON2F
  1351. config CPU_NOP_WORKAROUNDS
  1352. bool
  1353. config CPU_JUMP_WORKAROUNDS
  1354. bool
  1355. config CPU_LOONGSON2F_WORKAROUNDS
  1356. bool "Loongson 2F Workarounds"
  1357. default y
  1358. select CPU_NOP_WORKAROUNDS
  1359. select CPU_JUMP_WORKAROUNDS
  1360. help
  1361. Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
  1362. require workarounds. Without workarounds the system may hang
  1363. unexpectedly. For more information please refer to the gas
  1364. -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
  1365. Loongson 2F03 and later have fixed these issues and no workarounds
  1366. are needed. The workarounds have no significant side effect on them
  1367. but may decrease the performance of the system so this option should
  1368. be disabled unless the kernel is intended to be run on 2F01 or 2F02
  1369. systems.
  1370. If unsure, please say Y.
  1371. endif # CPU_LOONGSON2F
  1372. config SYS_SUPPORTS_ZBOOT
  1373. bool
  1374. select HAVE_KERNEL_GZIP
  1375. select HAVE_KERNEL_BZIP2
  1376. select HAVE_KERNEL_LZMA
  1377. select HAVE_KERNEL_LZO
  1378. config SYS_SUPPORTS_ZBOOT_UART16550
  1379. bool
  1380. select SYS_SUPPORTS_ZBOOT
  1381. config CPU_LOONGSON2
  1382. bool
  1383. select CPU_SUPPORTS_32BIT_KERNEL
  1384. select CPU_SUPPORTS_64BIT_KERNEL
  1385. select CPU_SUPPORTS_HIGHMEM
  1386. config CPU_LOONGSON1
  1387. bool
  1388. select CPU_MIPS32
  1389. select CPU_MIPSR2
  1390. select CPU_HAS_PREFETCH
  1391. select CPU_SUPPORTS_32BIT_KERNEL
  1392. select CPU_SUPPORTS_HIGHMEM
  1393. config CPU_BMIPS
  1394. bool
  1395. select CPU_MIPS32
  1396. select CPU_SUPPORTS_32BIT_KERNEL
  1397. select DMA_NONCOHERENT
  1398. select IRQ_CPU
  1399. select SWAP_IO_SPACE
  1400. select WEAK_ORDERING
  1401. config SYS_HAS_CPU_LOONGSON2E
  1402. bool
  1403. config SYS_HAS_CPU_LOONGSON2F
  1404. bool
  1405. select CPU_SUPPORTS_CPUFREQ
  1406. select CPU_SUPPORTS_ADDRWINCFG if 64BIT
  1407. select CPU_SUPPORTS_UNCACHED_ACCELERATED
  1408. config SYS_HAS_CPU_LOONGSON1B
  1409. bool
  1410. config SYS_HAS_CPU_MIPS32_R1
  1411. bool
  1412. config SYS_HAS_CPU_MIPS32_R2
  1413. bool
  1414. config SYS_HAS_CPU_MIPS64_R1
  1415. bool
  1416. config SYS_HAS_CPU_MIPS64_R2
  1417. bool
  1418. config SYS_HAS_CPU_R3000
  1419. bool
  1420. config SYS_HAS_CPU_TX39XX
  1421. bool
  1422. config SYS_HAS_CPU_VR41XX
  1423. bool
  1424. config SYS_HAS_CPU_R4300
  1425. bool
  1426. config SYS_HAS_CPU_R4X00
  1427. bool
  1428. config SYS_HAS_CPU_TX49XX
  1429. bool
  1430. config SYS_HAS_CPU_R5000
  1431. bool
  1432. config SYS_HAS_CPU_R5432
  1433. bool
  1434. config SYS_HAS_CPU_R5500
  1435. bool
  1436. config SYS_HAS_CPU_R6000
  1437. bool
  1438. config SYS_HAS_CPU_NEVADA
  1439. bool
  1440. config SYS_HAS_CPU_R8000
  1441. bool
  1442. config SYS_HAS_CPU_R10000
  1443. bool
  1444. config SYS_HAS_CPU_RM7000
  1445. bool
  1446. config SYS_HAS_CPU_RM9000
  1447. bool
  1448. config SYS_HAS_CPU_SB1
  1449. bool
  1450. config SYS_HAS_CPU_CAVIUM_OCTEON
  1451. bool
  1452. config SYS_HAS_CPU_BMIPS3300
  1453. bool
  1454. config SYS_HAS_CPU_BMIPS4350
  1455. bool
  1456. config SYS_HAS_CPU_BMIPS4380
  1457. bool
  1458. config SYS_HAS_CPU_BMIPS5000
  1459. bool
  1460. config SYS_HAS_CPU_XLR
  1461. bool
  1462. config SYS_HAS_CPU_XLP
  1463. bool
  1464. #
  1465. # CPU may reorder R->R, R->W, W->R, W->W
  1466. # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
  1467. #
  1468. config WEAK_ORDERING
  1469. bool
  1470. #
  1471. # CPU may reorder reads and writes beyond LL/SC
  1472. # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
  1473. #
  1474. config WEAK_REORDERING_BEYOND_LLSC
  1475. bool
  1476. endmenu
  1477. #
  1478. # These two indicate any level of the MIPS32 and MIPS64 architecture
  1479. #
  1480. config CPU_MIPS32
  1481. bool
  1482. default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
  1483. config CPU_MIPS64
  1484. bool
  1485. default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
  1486. #
  1487. # These two indicate the revision of the architecture, either Release 1 or Release 2
  1488. #
  1489. config CPU_MIPSR1
  1490. bool
  1491. default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
  1492. config CPU_MIPSR2
  1493. bool
  1494. default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
  1495. config SYS_SUPPORTS_32BIT_KERNEL
  1496. bool
  1497. config SYS_SUPPORTS_64BIT_KERNEL
  1498. bool
  1499. config CPU_SUPPORTS_32BIT_KERNEL
  1500. bool
  1501. config CPU_SUPPORTS_64BIT_KERNEL
  1502. bool
  1503. config CPU_SUPPORTS_CPUFREQ
  1504. bool
  1505. config CPU_SUPPORTS_ADDRWINCFG
  1506. bool
  1507. config CPU_SUPPORTS_HUGEPAGES
  1508. bool
  1509. config CPU_SUPPORTS_UNCACHED_ACCELERATED
  1510. bool
  1511. config MIPS_PGD_C0_CONTEXT
  1512. bool
  1513. default y if 64BIT && CPU_MIPSR2
  1514. #
  1515. # Set to y for ptrace access to watch registers.
  1516. #
  1517. config HARDWARE_WATCHPOINTS
  1518. bool
  1519. default y if CPU_MIPSR1 || CPU_MIPSR2
  1520. menu "Kernel type"
  1521. choice
  1522. prompt "Kernel code model"
  1523. help
  1524. You should only select this option if you have a workload that
  1525. actually benefits from 64-bit processing or if your machine has
  1526. large memory. You will only be presented a single option in this
  1527. menu if your system does not support both 32-bit and 64-bit kernels.
  1528. config 32BIT
  1529. bool "32-bit kernel"
  1530. depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
  1531. select TRAD_SIGNALS
  1532. help
  1533. Select this option if you want to build a 32-bit kernel.
  1534. config 64BIT
  1535. bool "64-bit kernel"
  1536. depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
  1537. select HAVE_SYSCALL_WRAPPERS
  1538. help
  1539. Select this option if you want to build a 64-bit kernel.
  1540. endchoice
  1541. choice
  1542. prompt "Kernel page size"
  1543. default PAGE_SIZE_4KB
  1544. config PAGE_SIZE_4KB
  1545. bool "4kB"
  1546. depends on !CPU_LOONGSON2
  1547. help
  1548. This option select the standard 4kB Linux page size. On some
  1549. R3000-family processors this is the only available page size. Using
  1550. 4kB page size will minimize memory consumption and is therefore
  1551. recommended for low memory systems.
  1552. config PAGE_SIZE_8KB
  1553. bool "8kB"
  1554. depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON
  1555. help
  1556. Using 8kB page size will result in higher performance kernel at
  1557. the price of higher memory consumption. This option is available
  1558. only on R8000 and cnMIPS processors. Note that you will need a
  1559. suitable Linux distribution to support this.
  1560. config PAGE_SIZE_16KB
  1561. bool "16kB"
  1562. depends on !CPU_R3000 && !CPU_TX39XX
  1563. help
  1564. Using 16kB page size will result in higher performance kernel at
  1565. the price of higher memory consumption. This option is available on
  1566. all non-R3000 family processors. Note that you will need a suitable
  1567. Linux distribution to support this.
  1568. config PAGE_SIZE_32KB
  1569. bool "32kB"
  1570. depends on CPU_CAVIUM_OCTEON
  1571. help
  1572. Using 32kB page size will result in higher performance kernel at
  1573. the price of higher memory consumption. This option is available
  1574. only on cnMIPS cores. Note that you will need a suitable Linux
  1575. distribution to support this.
  1576. config PAGE_SIZE_64KB
  1577. bool "64kB"
  1578. depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
  1579. help
  1580. Using 64kB page size will result in higher performance kernel at
  1581. the price of higher memory consumption. This option is available on
  1582. all non-R3000 family processor. Not that at the time of this
  1583. writing this option is still high experimental.
  1584. endchoice
  1585. config FORCE_MAX_ZONEORDER
  1586. int "Maximum zone order"
  1587. range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
  1588. default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
  1589. range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
  1590. default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
  1591. range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
  1592. default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
  1593. range 11 64
  1594. default "11"
  1595. help
  1596. The kernel memory allocator divides physically contiguous memory
  1597. blocks into "zones", where each zone is a power of two number of
  1598. pages. This option selects the largest power of two that the kernel
  1599. keeps in the memory allocator. If you need to allocate very large
  1600. blocks of physically contiguous memory, then you may need to
  1601. increase this value.
  1602. This config option is actually maximum order plus one. For example,
  1603. a value of 11 means that the largest free memory block is 2^10 pages.
  1604. The page size is not necessarily 4KB. Keep this in mind
  1605. when choosing a value for this option.
  1606. config BOARD_SCACHE
  1607. bool
  1608. config IP22_CPU_SCACHE
  1609. bool
  1610. select BOARD_SCACHE
  1611. #
  1612. # Support for a MIPS32 / MIPS64 style S-caches
  1613. #
  1614. config MIPS_CPU_SCACHE
  1615. bool
  1616. select BOARD_SCACHE
  1617. config R5000_CPU_SCACHE
  1618. bool
  1619. select BOARD_SCACHE
  1620. config RM7000_CPU_SCACHE
  1621. bool
  1622. select BOARD_SCACHE
  1623. config SIBYTE_DMA_PAGEOPS
  1624. bool "Use DMA to clear/copy pages"
  1625. depends on CPU_SB1
  1626. help
  1627. Instead of using the CPU to zero and copy pages, use a Data Mover
  1628. channel. These DMA channels are otherwise unused by the standard
  1629. SiByte Linux port. Seems to give a small performance benefit.
  1630. config CPU_HAS_PREFETCH
  1631. bool
  1632. config CPU_GENERIC_DUMP_TLB
  1633. bool
  1634. default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
  1635. config CPU_R4K_FPU
  1636. bool
  1637. default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
  1638. config CPU_R4K_CACHE_TLB
  1639. bool
  1640. default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
  1641. choice
  1642. prompt "MIPS MT options"
  1643. config MIPS_MT_DISABLED
  1644. bool "Disable multithreading support."
  1645. help
  1646. Use this option if your workload can't take advantage of
  1647. MIPS hardware multithreading support. On systems that don't have
  1648. the option of an MT-enabled processor this option will be the only
  1649. option in this menu.
  1650. config MIPS_MT_SMP
  1651. bool "Use 1 TC on each available VPE for SMP"
  1652. depends on SYS_SUPPORTS_MULTITHREADING
  1653. select CPU_MIPSR2_IRQ_VI
  1654. select CPU_MIPSR2_IRQ_EI
  1655. select MIPS_MT
  1656. select NR_CPUS_DEFAULT_2
  1657. select SMP
  1658. select SYS_SUPPORTS_SCHED_SMT if SMP
  1659. select SYS_SUPPORTS_SMP
  1660. select SMP_UP
  1661. help
  1662. This is a kernel model which is known a VSMP but lately has been
  1663. marketesed into SMVP.
  1664. Virtual SMP uses the processor's VPEs to implement virtual
  1665. processors. In currently available configuration of the 34K processor
  1666. this allows for a dual processor. Both processors will share the same
  1667. primary caches; each will obtain the half of the TLB for it's own
  1668. exclusive use. For a layman this model can be described as similar to
  1669. what Intel calls Hyperthreading.
  1670. For further information see http://www.linux-mips.org/wiki/34K#VSMP
  1671. config MIPS_MT_SMTC
  1672. bool "SMTC: Use all TCs on all VPEs for SMP"
  1673. depends on CPU_MIPS32_R2
  1674. #depends on CPU_MIPS64_R2 # once there is hardware ...
  1675. depends on SYS_SUPPORTS_MULTITHREADING
  1676. select CPU_MIPSR2_IRQ_VI
  1677. select CPU_MIPSR2_IRQ_EI
  1678. select MIPS_MT
  1679. select NR_CPUS_DEFAULT_8
  1680. select SMP
  1681. select SYS_SUPPORTS_SMP
  1682. select SMP_UP
  1683. help
  1684. This is a kernel model which is known a SMTC or lately has been
  1685. marketesed into SMVP.
  1686. is presenting the available TC's of the core as processors to Linux.
  1687. On currently available 34K processors this means a Linux system will
  1688. see up to 5 processors. The implementation of the SMTC kernel differs
  1689. significantly from VSMP and cannot efficiently coexist in the same
  1690. kernel binary so the choice between VSMP and SMTC is a compile time
  1691. decision.
  1692. For further information see http://www.linux-mips.org/wiki/34K#SMTC
  1693. endchoice
  1694. config MIPS_MT
  1695. bool
  1696. config SCHED_SMT
  1697. bool "SMT (multithreading) scheduler support"
  1698. depends on SYS_SUPPORTS_SCHED_SMT
  1699. default n
  1700. help
  1701. SMT scheduler support improves the CPU scheduler's decision making
  1702. when dealing with MIPS MT enabled cores at a cost of slightly
  1703. increased overhead in some places. If unsure say N here.
  1704. config SYS_SUPPORTS_SCHED_SMT
  1705. bool
  1706. config SYS_SUPPORTS_MULTITHREADING
  1707. bool
  1708. config MIPS_MT_FPAFF
  1709. bool "Dynamic FPU affinity for FP-intensive threads"
  1710. default y
  1711. depends on MIPS_MT_SMP || MIPS_MT_SMTC
  1712. config MIPS_VPE_LOADER
  1713. bool "VPE loader support."
  1714. depends on SYS_SUPPORTS_MULTITHREADING
  1715. select CPU_MIPSR2_IRQ_VI
  1716. select CPU_MIPSR2_IRQ_EI
  1717. select MIPS_MT
  1718. help
  1719. Includes a loader for loading an elf relocatable object
  1720. onto another VPE and running it.
  1721. config MIPS_MT_SMTC_IM_BACKSTOP
  1722. bool "Use per-TC register bits as backstop for inhibited IM bits"
  1723. depends on MIPS_MT_SMTC
  1724. default n
  1725. help
  1726. To support multiple TC microthreads acting as "CPUs" within
  1727. a VPE, VPE-wide interrupt mask bits must be specially manipulated
  1728. during interrupt handling. To support legacy drivers and interrupt
  1729. controller management code, SMTC has a "backstop" to track and
  1730. if necessary restore the interrupt mask. This has some performance
  1731. impact on interrupt service overhead.
  1732. config MIPS_MT_SMTC_IRQAFF
  1733. bool "Support IRQ affinity API"
  1734. depends on MIPS_MT_SMTC
  1735. default n
  1736. help
  1737. Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
  1738. for SMTC Linux kernel. Requires platform support, of which
  1739. an example can be found in the MIPS kernel i8259 and Malta
  1740. platform code. Adds some overhead to interrupt dispatch, and
  1741. should be used only if you know what you are doing.
  1742. config MIPS_VPE_LOADER_TOM
  1743. bool "Load VPE program into memory hidden from linux"
  1744. depends on MIPS_VPE_LOADER
  1745. default y
  1746. help
  1747. The loader can use memory that is present but has been hidden from
  1748. Linux using the kernel command line option "mem=xxMB". It's up to
  1749. you to ensure the amount you put in the option and the space your
  1750. program requires is less or equal to the amount physically present.
  1751. # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
  1752. config MIPS_VPE_APSP_API
  1753. bool "Enable support for AP/SP API (RTLX)"
  1754. depends on MIPS_VPE_LOADER
  1755. help
  1756. config MIPS_APSP_KSPD
  1757. bool "Enable KSPD"
  1758. depends on MIPS_VPE_APSP_API
  1759. default y
  1760. help
  1761. KSPD is a kernel daemon that accepts syscall requests from the SP
  1762. side, actions them and returns the results. It also handles the
  1763. "exit" syscall notifying other kernel modules the SP program is
  1764. exiting. You probably want to say yes here.
  1765. config MIPS_CMP
  1766. bool "MIPS CMP framework support"
  1767. depends on SYS_SUPPORTS_MIPS_CMP
  1768. select SYNC_R4K
  1769. select SYS_SUPPORTS_SMP
  1770. select SYS_SUPPORTS_SCHED_SMT if SMP
  1771. select WEAK_ORDERING
  1772. default n
  1773. help
  1774. This is a placeholder option for the GCMP work. It will need to
  1775. be handled differently...
  1776. config SB1_PASS_1_WORKAROUNDS
  1777. bool
  1778. depends on CPU_SB1_PASS_1
  1779. default y
  1780. config SB1_PASS_2_WORKAROUNDS
  1781. bool
  1782. depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
  1783. default y
  1784. config SB1_PASS_2_1_WORKAROUNDS
  1785. bool
  1786. depends on CPU_SB1 && CPU_SB1_PASS_2
  1787. default y
  1788. config 64BIT_PHYS_ADDR
  1789. bool
  1790. config ARCH_PHYS_ADDR_T_64BIT
  1791. def_bool 64BIT_PHYS_ADDR
  1792. config CPU_HAS_SMARTMIPS
  1793. depends on SYS_SUPPORTS_SMARTMIPS
  1794. bool "Support for the SmartMIPS ASE"
  1795. help
  1796. SmartMIPS is a extension of the MIPS32 architecture aimed at
  1797. increased security at both hardware and software level for
  1798. smartcards. Enabling this option will allow proper use of the
  1799. SmartMIPS instructions by Linux applications. However a kernel with
  1800. this option will not work on a MIPS core without SmartMIPS core. If
  1801. you don't know you probably don't have SmartMIPS and should say N
  1802. here.
  1803. config CPU_HAS_WB
  1804. bool
  1805. config XKS01
  1806. bool
  1807. #
  1808. # Vectored interrupt mode is an R2 feature
  1809. #
  1810. config CPU_MIPSR2_IRQ_VI
  1811. bool
  1812. #
  1813. # Extended interrupt mode is an R2 feature
  1814. #
  1815. config CPU_MIPSR2_IRQ_EI
  1816. bool
  1817. config CPU_HAS_SYNC
  1818. bool
  1819. depends on !CPU_R3000
  1820. default y
  1821. #
  1822. # CPU non-features
  1823. #
  1824. config CPU_DADDI_WORKAROUNDS
  1825. bool
  1826. config CPU_R4000_WORKAROUNDS
  1827. bool
  1828. select CPU_R4400_WORKAROUNDS
  1829. config CPU_R4400_WORKAROUNDS
  1830. bool
  1831. #
  1832. # - Highmem only makes sense for the 32-bit kernel.
  1833. # - The current highmem code will only work properly on physically indexed
  1834. # caches such as R3000, SB1, R7000 or those that look like they're virtually
  1835. # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
  1836. # moment we protect the user and offer the highmem option only on machines
  1837. # where it's known to be safe. This will not offer highmem on a few systems
  1838. # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
  1839. # indexed CPUs but we're playing safe.
  1840. # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
  1841. # know they might have memory configurations that could make use of highmem
  1842. # support.
  1843. #
  1844. config HIGHMEM
  1845. bool "High Memory Support"
  1846. depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
  1847. config CPU_SUPPORTS_HIGHMEM
  1848. bool
  1849. config SYS_SUPPORTS_HIGHMEM
  1850. bool
  1851. config SYS_SUPPORTS_SMARTMIPS
  1852. bool
  1853. config ARCH_FLATMEM_ENABLE
  1854. def_bool y
  1855. depends on !NUMA && !CPU_LOONGSON2
  1856. config ARCH_DISCONTIGMEM_ENABLE
  1857. bool
  1858. default y if SGI_IP27
  1859. help
  1860. Say Y to support efficient handling of discontiguous physical memory,
  1861. for architectures which are either NUMA (Non-Uniform Memory Access)
  1862. or have huge holes in the physical address space for other reasons.
  1863. See <file:Documentation/vm/numa> for more.
  1864. config ARCH_SPARSEMEM_ENABLE
  1865. bool
  1866. select SPARSEMEM_STATIC
  1867. config NUMA
  1868. bool "NUMA Support"
  1869. depends on SYS_SUPPORTS_NUMA
  1870. help
  1871. Say Y to compile the kernel to support NUMA (Non-Uniform Memory
  1872. Access). This option improves performance on systems with more
  1873. than two nodes; on two node systems it is generally better to
  1874. leave it disabled; on single node systems disable this option
  1875. disabled.
  1876. config SYS_SUPPORTS_NUMA
  1877. bool
  1878. config NODES_SHIFT
  1879. int
  1880. default "6"
  1881. depends on NEED_MULTIPLE_NODES
  1882. config HW_PERF_EVENTS
  1883. bool "Enable hardware performance counter support for perf events"
  1884. depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON)
  1885. default y
  1886. help
  1887. Enable hardware performance counter support for perf events. If
  1888. disabled, perf events will use software events only.
  1889. source "mm/Kconfig"
  1890. config SMP
  1891. bool "Multi-Processing support"
  1892. depends on SYS_SUPPORTS_SMP
  1893. select IRQ_PER_CPU
  1894. select USE_GENERIC_SMP_HELPERS
  1895. help
  1896. This enables support for systems with more than one CPU. If you have
  1897. a system with only one CPU, like most personal computers, say N. If
  1898. you have a system with more than one CPU, say Y.
  1899. If you say N here, the kernel will run on single and multiprocessor
  1900. machines, but will use only one CPU of a multiprocessor machine. If
  1901. you say Y here, the kernel will run on many, but not all,
  1902. singleprocessor machines. On a singleprocessor machine, the kernel
  1903. will run faster if you say N here.
  1904. People using multiprocessor machines who say Y here should also say
  1905. Y to "Enhanced Real Time Clock Support", below.
  1906. See also the SMP-HOWTO available at
  1907. <http://www.tldp.org/docs.html#howto>.
  1908. If you don't know what to do here, say N.
  1909. config SMP_UP
  1910. bool
  1911. config SYS_SUPPORTS_MIPS_CMP
  1912. bool
  1913. config SYS_SUPPORTS_SMP
  1914. bool
  1915. config NR_CPUS_DEFAULT_1
  1916. bool
  1917. config NR_CPUS_DEFAULT_2
  1918. bool
  1919. config NR_CPUS_DEFAULT_4
  1920. bool
  1921. config NR_CPUS_DEFAULT_8
  1922. bool
  1923. config NR_CPUS_DEFAULT_16
  1924. bool
  1925. config NR_CPUS_DEFAULT_32
  1926. bool
  1927. config NR_CPUS_DEFAULT_64
  1928. bool
  1929. config NR_CPUS
  1930. int "Maximum number of CPUs (2-64)"
  1931. range 1 64 if NR_CPUS_DEFAULT_1
  1932. depends on SMP
  1933. default "1" if NR_CPUS_DEFAULT_1
  1934. default "2" if NR_CPUS_DEFAULT_2
  1935. default "4" if NR_CPUS_DEFAULT_4
  1936. default "8" if NR_CPUS_DEFAULT_8
  1937. default "16" if NR_CPUS_DEFAULT_16
  1938. default "32" if NR_CPUS_DEFAULT_32
  1939. default "64" if NR_CPUS_DEFAULT_64
  1940. help
  1941. This allows you to specify the maximum number of CPUs which this
  1942. kernel will support. The maximum supported value is 32 for 32-bit
  1943. kernel and 64 for 64-bit kernels; the minimum value which makes
  1944. sense is 1 for Qemu (useful only for kernel debugging purposes)
  1945. and 2 for all others.
  1946. This is purely to save memory - each supported CPU adds
  1947. approximately eight kilobytes to the kernel image. For best
  1948. performance should round up your number of processors to the next
  1949. power of two.
  1950. #
  1951. # Timer Interrupt Frequency Configuration
  1952. #
  1953. choice
  1954. prompt "Timer frequency"
  1955. default HZ_250
  1956. help
  1957. Allows the configuration of the timer frequency.
  1958. config HZ_48
  1959. bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
  1960. config HZ_100
  1961. bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
  1962. config HZ_128
  1963. bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
  1964. config HZ_250
  1965. bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
  1966. config HZ_256
  1967. bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
  1968. config HZ_1000
  1969. bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
  1970. config HZ_1024
  1971. bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
  1972. endchoice
  1973. config SYS_SUPPORTS_48HZ
  1974. bool
  1975. config SYS_SUPPORTS_100HZ
  1976. bool
  1977. config SYS_SUPPORTS_128HZ
  1978. bool
  1979. config SYS_SUPPORTS_250HZ
  1980. bool
  1981. config SYS_SUPPORTS_256HZ
  1982. bool
  1983. config SYS_SUPPORTS_1000HZ
  1984. bool
  1985. config SYS_SUPPORTS_1024HZ
  1986. bool
  1987. config SYS_SUPPORTS_ARBIT_HZ
  1988. bool
  1989. default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
  1990. !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
  1991. !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
  1992. !SYS_SUPPORTS_1024HZ
  1993. config HZ
  1994. int
  1995. default 48 if HZ_48
  1996. default 100 if HZ_100
  1997. default 128 if HZ_128
  1998. default 250 if HZ_250
  1999. default 256 if HZ_256
  2000. default 1000 if HZ_1000
  2001. default 1024 if HZ_1024
  2002. source "kernel/Kconfig.preempt"
  2003. config KEXEC
  2004. bool "Kexec system call (EXPERIMENTAL)"
  2005. depends on EXPERIMENTAL
  2006. help
  2007. kexec is a system call that implements the ability to shutdown your
  2008. current kernel, and to start another kernel. It is like a reboot
  2009. but it is independent of the system firmware. And like a reboot
  2010. you can start any kernel with it, not just Linux.
  2011. The name comes from the similarity to the exec system call.
  2012. It is an ongoing process to be certain the hardware in a machine
  2013. is properly shutdown, so do not be surprised if this code does not
  2014. initially work for you. It may help to enable device hotplugging
  2015. support. As of this writing the exact hardware interface is
  2016. strongly in flux, so no good recommendation can be made.
  2017. config SECCOMP
  2018. bool "Enable seccomp to safely compute untrusted bytecode"
  2019. depends on PROC_FS
  2020. default y
  2021. help
  2022. This kernel feature is useful for number crunching applications
  2023. that may need to compute untrusted bytecode during their
  2024. execution. By using pipes or other transports made available to
  2025. the process as file descriptors supporting the read/write
  2026. syscalls, it's possible to isolate those applications in
  2027. their own address space using seccomp. Once seccomp is
  2028. enabled via /proc/<pid>/seccomp, it cannot be disabled
  2029. and the task is only allowed to execute a few safe syscalls
  2030. defined by each seccomp mode.
  2031. If unsure, say Y. Only embedded should say N here.
  2032. config USE_OF
  2033. bool "Flattened Device Tree support"
  2034. select OF
  2035. select OF_EARLY_FLATTREE
  2036. select IRQ_DOMAIN
  2037. help
  2038. Include support for flattened device tree machine descriptions.
  2039. endmenu
  2040. config LOCKDEP_SUPPORT
  2041. bool
  2042. default y
  2043. config STACKTRACE_SUPPORT
  2044. bool
  2045. default y
  2046. source "init/Kconfig"
  2047. source "kernel/Kconfig.freezer"
  2048. menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
  2049. config HW_HAS_EISA
  2050. bool
  2051. config HW_HAS_PCI
  2052. bool
  2053. config PCI
  2054. bool "Support for PCI controller"
  2055. depends on HW_HAS_PCI
  2056. select PCI_DOMAINS
  2057. select GENERIC_PCI_IOMAP
  2058. select NO_GENERIC_PCI_IOPORT_MAP
  2059. help
  2060. Find out whether you have a PCI motherboard. PCI is the name of a
  2061. bus system, i.e. the way the CPU talks to the other stuff inside
  2062. your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
  2063. say Y, otherwise N.
  2064. config PCI_DOMAINS
  2065. bool
  2066. source "drivers/pci/Kconfig"
  2067. source "drivers/pci/pcie/Kconfig"
  2068. #
  2069. # ISA support is now enabled via select. Too many systems still have the one
  2070. # or other ISA chip on the board that users don't know about so don't expect
  2071. # users to choose the right thing ...
  2072. #
  2073. config ISA
  2074. bool
  2075. config EISA
  2076. bool "EISA support"
  2077. depends on HW_HAS_EISA
  2078. select ISA
  2079. select GENERIC_ISA_DMA
  2080. ---help---
  2081. The Extended Industry Standard Architecture (EISA) bus was
  2082. developed as an open alternative to the IBM MicroChannel bus.
  2083. The EISA bus provided some of the features of the IBM MicroChannel
  2084. bus while maintaining backward compatibility with cards made for
  2085. the older ISA bus. The EISA bus saw limited use between 1988 and
  2086. 1995 when it was made obsolete by the PCI bus.
  2087. Say Y here if you are building a kernel for an EISA-based machine.
  2088. Otherwise, say N.
  2089. source "drivers/eisa/Kconfig"
  2090. config TC
  2091. bool "TURBOchannel support"
  2092. depends on MACH_DECSTATION
  2093. help
  2094. TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
  2095. processors. TURBOchannel programming specifications are available
  2096. at:
  2097. <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
  2098. and:
  2099. <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
  2100. Linux driver support status is documented at:
  2101. <http://www.linux-mips.org/wiki/DECstation>
  2102. config MMU
  2103. bool
  2104. default y
  2105. config I8253
  2106. bool
  2107. select CLKSRC_I8253
  2108. select CLKEVT_I8253
  2109. select MIPS_EXTERNAL_TIMER
  2110. config ZONE_DMA32
  2111. bool
  2112. source "drivers/pcmcia/Kconfig"
  2113. source "drivers/pci/hotplug/Kconfig"
  2114. config RAPIDIO
  2115. bool "RapidIO support"
  2116. depends on PCI
  2117. default n
  2118. help
  2119. If you say Y here, the kernel will include drivers and
  2120. infrastructure code to support RapidIO interconnect devices.
  2121. source "drivers/rapidio/Kconfig"
  2122. endmenu
  2123. menu "Executable file formats"
  2124. source "fs/Kconfig.binfmt"
  2125. config TRAD_SIGNALS
  2126. bool
  2127. config MIPS32_COMPAT
  2128. bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
  2129. depends on 64BIT
  2130. help
  2131. Select this option if you want Linux/MIPS 32-bit binary
  2132. compatibility. Since all software available for Linux/MIPS is
  2133. currently 32-bit you should say Y here.
  2134. config COMPAT
  2135. bool
  2136. depends on MIPS32_COMPAT
  2137. select ARCH_WANT_OLD_COMPAT_IPC
  2138. default y
  2139. config SYSVIPC_COMPAT
  2140. bool
  2141. depends on COMPAT && SYSVIPC
  2142. default y
  2143. config MIPS32_O32
  2144. bool "Kernel support for o32 binaries"
  2145. depends on MIPS32_COMPAT
  2146. help
  2147. Select this option if you want to run o32 binaries. These are pure
  2148. 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
  2149. existing binaries are in this format.
  2150. If unsure, say Y.
  2151. config MIPS32_N32
  2152. bool "Kernel support for n32 binaries"
  2153. depends on MIPS32_COMPAT
  2154. help
  2155. Select this option if you want to run n32 binaries. These are
  2156. 64-bit binaries using 32-bit quantities for addressing and certain
  2157. data that would normally be 64-bit. They are used in special
  2158. cases.
  2159. If unsure, say N.
  2160. config BINFMT_ELF32
  2161. bool
  2162. default y if MIPS32_O32 || MIPS32_N32
  2163. endmenu
  2164. menu "Power management options"
  2165. config ARCH_HIBERNATION_POSSIBLE
  2166. def_bool y
  2167. depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
  2168. config ARCH_SUSPEND_POSSIBLE
  2169. def_bool y
  2170. depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
  2171. source "kernel/power/Kconfig"
  2172. endmenu
  2173. source "arch/mips/kernel/cpufreq/Kconfig"
  2174. source "net/Kconfig"
  2175. source "drivers/Kconfig"
  2176. source "fs/Kconfig"
  2177. source "arch/mips/Kconfig.debug"
  2178. source "security/Kconfig"
  2179. source "crypto/Kconfig"
  2180. source "lib/Kconfig"