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_PERF_EVENTS
  8. select PERF_USE_VMALLOC
  9. select HAVE_ARCH_KGDB
  10. select ARCH_HAVE_CUSTOM_GPIO_H
  11. select HAVE_FUNCTION_TRACER
  12. select HAVE_FUNCTION_TRACE_MCOUNT_TEST
  13. select HAVE_DYNAMIC_FTRACE
  14. select HAVE_FTRACE_MCOUNT_RECORD
  15. select HAVE_C_RECORDMCOUNT
  16. select HAVE_FUNCTION_GRAPH_TRACER
  17. select HAVE_KPROBES
  18. select HAVE_KRETPROBES
  19. select HAVE_DEBUG_KMEMLEAK
  20. select ARCH_BINFMT_ELF_RANDOMIZE_PIE
  21. select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
  22. select RTC_LIB if !MACH_LOONGSON
  23. select GENERIC_ATOMIC64 if !64BIT
  24. select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
  25. select HAVE_DMA_ATTRS
  26. select HAVE_DMA_API_DEBUG
  27. select HAVE_GENERIC_HARDIRQS
  28. select GENERIC_IRQ_PROBE
  29. select GENERIC_IRQ_SHOW
  30. select HAVE_ARCH_JUMP_LABEL
  31. select ARCH_WANT_IPC_PARSE_VERSION
  32. select IRQ_FORCED_THREADING
  33. select HAVE_MEMBLOCK
  34. select HAVE_MEMBLOCK_NODE_MAP
  35. select ARCH_DISCARD_MEMBLOCK
  36. select GENERIC_SMP_IDLE_THREAD
  37. select BUILDTIME_EXTABLE_SORT
  38. select GENERIC_CLOCKEVENTS
  39. select GENERIC_CMOS_UPDATE
  40. select HAVE_MOD_ARCH_SPECIFIC
  41. select VIRT_TO_BUS
  42. select MODULES_USE_ELF_REL if MODULES
  43. select MODULES_USE_ELF_RELA if MODULES && 64BIT
  44. select CLONE_BACKWARDS
  45. menu "Machine selection"
  46. config ZONE_DMA
  47. bool
  48. choice
  49. prompt "System type"
  50. default SGI_IP22
  51. config MIPS_ALCHEMY
  52. bool "Alchemy processor based machines"
  53. select 64BIT_PHYS_ADDR
  54. select CEVT_R4K
  55. select CSRC_R4K
  56. select IRQ_CPU
  57. select SYS_HAS_CPU_MIPS32_R1
  58. select SYS_SUPPORTS_32BIT_KERNEL
  59. select SYS_SUPPORTS_APM_EMULATION
  60. select GENERIC_GPIO
  61. select ARCH_WANT_OPTIONAL_GPIOLIB
  62. select SYS_SUPPORTS_ZBOOT
  63. select USB_ARCH_HAS_OHCI
  64. select USB_ARCH_HAS_EHCI
  65. config AR7
  66. bool "Texas Instruments AR7"
  67. select BOOT_ELF32
  68. select DMA_NONCOHERENT
  69. select CEVT_R4K
  70. select CSRC_R4K
  71. select IRQ_CPU
  72. select NO_EXCEPT_FILL
  73. select SWAP_IO_SPACE
  74. select SYS_HAS_CPU_MIPS32_R1
  75. select SYS_HAS_EARLY_PRINTK
  76. select SYS_SUPPORTS_32BIT_KERNEL
  77. select SYS_SUPPORTS_LITTLE_ENDIAN
  78. select SYS_SUPPORTS_ZBOOT_UART16550
  79. select ARCH_REQUIRE_GPIOLIB
  80. select VLYNQ
  81. select HAVE_CLK
  82. help
  83. Support for the Texas Instruments AR7 System-on-a-Chip
  84. family: TNETD7100, 7200 and 7300.
  85. config ATH79
  86. bool "Atheros AR71XX/AR724X/AR913X based boards"
  87. select ARCH_REQUIRE_GPIOLIB
  88. select BOOT_RAW
  89. select CEVT_R4K
  90. select CSRC_R4K
  91. select DMA_NONCOHERENT
  92. select HAVE_CLK
  93. select IRQ_CPU
  94. select MIPS_MACHINE
  95. select SYS_HAS_CPU_MIPS32_R2
  96. select SYS_HAS_EARLY_PRINTK
  97. select SYS_SUPPORTS_32BIT_KERNEL
  98. select SYS_SUPPORTS_BIG_ENDIAN
  99. help
  100. Support for the Atheros AR71XX/AR724X/AR913X SoCs.
  101. config BCM47XX
  102. bool "Broadcom BCM47XX based boards"
  103. select ARCH_WANT_OPTIONAL_GPIOLIB
  104. select BOOT_RAW
  105. select CEVT_R4K
  106. select CSRC_R4K
  107. select DMA_NONCOHERENT
  108. select FW_CFE
  109. select HW_HAS_PCI
  110. select IRQ_CPU
  111. select NO_EXCEPT_FILL
  112. select SYS_SUPPORTS_32BIT_KERNEL
  113. select SYS_SUPPORTS_LITTLE_ENDIAN
  114. select SYS_HAS_EARLY_PRINTK
  115. help
  116. Support for BCM47XX based boards
  117. config BCM63XX
  118. bool "Broadcom BCM63XX based boards"
  119. select CEVT_R4K
  120. select CSRC_R4K
  121. select DMA_NONCOHERENT
  122. select IRQ_CPU
  123. select SYS_HAS_CPU_MIPS32_R1
  124. select SYS_SUPPORTS_32BIT_KERNEL
  125. select SYS_SUPPORTS_BIG_ENDIAN
  126. select SYS_HAS_EARLY_PRINTK
  127. select SWAP_IO_SPACE
  128. select ARCH_REQUIRE_GPIOLIB
  129. select HAVE_CLK
  130. help
  131. Support for BCM63XX based boards
  132. config MIPS_COBALT
  133. bool "Cobalt Server"
  134. select CEVT_R4K
  135. select CSRC_R4K
  136. select CEVT_GT641XX
  137. select DMA_NONCOHERENT
  138. select HW_HAS_PCI
  139. select I8253
  140. select I8259
  141. select IRQ_CPU
  142. select IRQ_GT641XX
  143. select PCI_GT64XXX_PCI0
  144. select PCI
  145. select SYS_HAS_CPU_NEVADA
  146. select SYS_HAS_EARLY_PRINTK
  147. select SYS_SUPPORTS_32BIT_KERNEL
  148. select SYS_SUPPORTS_64BIT_KERNEL
  149. select SYS_SUPPORTS_LITTLE_ENDIAN
  150. config MACH_DECSTATION
  151. bool "DECstations"
  152. select BOOT_ELF32
  153. select CEVT_DS1287
  154. select CEVT_R4K
  155. select CSRC_IOASIC
  156. select CSRC_R4K
  157. select CPU_DADDI_WORKAROUNDS if 64BIT
  158. select CPU_R4000_WORKAROUNDS if 64BIT
  159. select CPU_R4400_WORKAROUNDS if 64BIT
  160. select DMA_NONCOHERENT
  161. select NO_IOPORT
  162. select IRQ_CPU
  163. select SYS_HAS_CPU_R3000
  164. select SYS_HAS_CPU_R4X00
  165. select SYS_SUPPORTS_32BIT_KERNEL
  166. select SYS_SUPPORTS_64BIT_KERNEL
  167. select SYS_SUPPORTS_LITTLE_ENDIAN
  168. select SYS_SUPPORTS_128HZ
  169. select SYS_SUPPORTS_256HZ
  170. select SYS_SUPPORTS_1024HZ
  171. help
  172. This enables support for DEC's MIPS based workstations. For details
  173. see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
  174. DECstation porting pages on <http://decstation.unix-ag.org/>.
  175. If you have one of the following DECstation Models you definitely
  176. want to choose R4xx0 for the CPU Type:
  177. DECstation 5000/50
  178. DECstation 5000/150
  179. DECstation 5000/260
  180. DECsystem 5900/260
  181. otherwise choose R3000.
  182. config MACH_JAZZ
  183. bool "Jazz family of machines"
  184. select FW_ARC
  185. select FW_ARC32
  186. select ARCH_MAY_HAVE_PC_FDC
  187. select CEVT_R4K
  188. select CSRC_R4K
  189. select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
  190. select GENERIC_ISA_DMA
  191. select HAVE_PCSPKR_PLATFORM
  192. select IRQ_CPU
  193. select I8253
  194. select I8259
  195. select ISA
  196. select SYS_HAS_CPU_R4X00
  197. select SYS_SUPPORTS_32BIT_KERNEL
  198. select SYS_SUPPORTS_64BIT_KERNEL
  199. select SYS_SUPPORTS_100HZ
  200. help
  201. This a family of machines based on the MIPS R4030 chipset which was
  202. used by several vendors to build RISC/os and Windows NT workstations.
  203. Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
  204. Olivetti M700-10 workstations.
  205. config MACH_JZ4740
  206. bool "Ingenic JZ4740 based machines"
  207. select SYS_HAS_CPU_MIPS32_R1
  208. select SYS_SUPPORTS_32BIT_KERNEL
  209. select SYS_SUPPORTS_LITTLE_ENDIAN
  210. select SYS_SUPPORTS_ZBOOT_UART16550
  211. select DMA_NONCOHERENT
  212. select IRQ_CPU
  213. select GENERIC_GPIO
  214. select ARCH_REQUIRE_GPIOLIB
  215. select SYS_HAS_EARLY_PRINTK
  216. select HAVE_PWM
  217. select HAVE_CLK
  218. select GENERIC_IRQ_CHIP
  219. config LANTIQ
  220. bool "Lantiq based platforms"
  221. select DMA_NONCOHERENT
  222. select IRQ_CPU
  223. select CEVT_R4K
  224. select CSRC_R4K
  225. select SYS_HAS_CPU_MIPS32_R1
  226. select SYS_HAS_CPU_MIPS32_R2
  227. select SYS_SUPPORTS_BIG_ENDIAN
  228. select SYS_SUPPORTS_32BIT_KERNEL
  229. select SYS_SUPPORTS_MULTITHREADING
  230. select SYS_HAS_EARLY_PRINTK
  231. select ARCH_REQUIRE_GPIOLIB
  232. select SWAP_IO_SPACE
  233. select BOOT_RAW
  234. select HAVE_MACH_CLKDEV
  235. select CLKDEV_LOOKUP
  236. select USE_OF
  237. select PINCTRL
  238. select PINCTRL_LANTIQ
  239. config LASAT
  240. bool "LASAT Networks platforms"
  241. select CEVT_R4K
  242. select CSRC_R4K
  243. select DMA_NONCOHERENT
  244. select SYS_HAS_EARLY_PRINTK
  245. select HW_HAS_PCI
  246. select IRQ_CPU
  247. select PCI_GT64XXX_PCI0
  248. select MIPS_NILE4
  249. select R5000_CPU_SCACHE
  250. select SYS_HAS_CPU_R5000
  251. select SYS_SUPPORTS_32BIT_KERNEL
  252. select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
  253. select SYS_SUPPORTS_LITTLE_ENDIAN
  254. config MACH_LOONGSON
  255. bool "Loongson family of machines"
  256. select SYS_SUPPORTS_ZBOOT
  257. help
  258. This enables the support of Loongson family of machines.
  259. Loongson is a family of general-purpose MIPS-compatible CPUs.
  260. developed at Institute of Computing Technology (ICT),
  261. Chinese Academy of Sciences (CAS) in the People's Republic
  262. of China. The chief architect is Professor Weiwu Hu.
  263. config MACH_LOONGSON1
  264. bool "Loongson 1 family of machines"
  265. select SYS_SUPPORTS_ZBOOT
  266. help
  267. This enables support for the Loongson 1 based machines.
  268. Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
  269. the ICT (Institute of Computing Technology) and the Chinese Academy
  270. of Sciences.
  271. config MIPS_MALTA
  272. bool "MIPS Malta board"
  273. select ARCH_MAY_HAVE_PC_FDC
  274. select BOOT_ELF32
  275. select BOOT_RAW
  276. select CEVT_R4K
  277. select CSRC_R4K
  278. select CSRC_GIC
  279. select DMA_NONCOHERENT
  280. select GENERIC_ISA_DMA
  281. select HAVE_PCSPKR_PLATFORM
  282. select IRQ_CPU
  283. select IRQ_GIC
  284. select HW_HAS_PCI
  285. select I8253
  286. select I8259
  287. select MIPS_BOARDS_GEN
  288. select MIPS_BONITO64
  289. select MIPS_CPU_SCACHE
  290. select PCI_GT64XXX_PCI0
  291. select MIPS_MSC
  292. select SWAP_IO_SPACE
  293. select SYS_HAS_CPU_MIPS32_R1
  294. select SYS_HAS_CPU_MIPS32_R2
  295. select SYS_HAS_CPU_MIPS64_R1
  296. select SYS_HAS_CPU_MIPS64_R2
  297. select SYS_HAS_CPU_NEVADA
  298. select SYS_HAS_CPU_RM7000
  299. select SYS_HAS_EARLY_PRINTK
  300. select SYS_SUPPORTS_32BIT_KERNEL
  301. select SYS_SUPPORTS_64BIT_KERNEL
  302. select SYS_SUPPORTS_BIG_ENDIAN
  303. select SYS_SUPPORTS_LITTLE_ENDIAN
  304. select SYS_SUPPORTS_MIPS_CMP
  305. select SYS_SUPPORTS_MULTITHREADING
  306. select SYS_SUPPORTS_SMARTMIPS
  307. select SYS_SUPPORTS_ZBOOT
  308. help
  309. This enables support for the MIPS Technologies Malta evaluation
  310. board.
  311. config MIPS_SEAD3
  312. bool "MIPS SEAD3 board"
  313. select BOOT_ELF32
  314. select BOOT_RAW
  315. select CEVT_R4K
  316. select CSRC_R4K
  317. select CPU_MIPSR2_IRQ_VI
  318. select CPU_MIPSR2_IRQ_EI
  319. select DMA_NONCOHERENT
  320. select IRQ_CPU
  321. select IRQ_GIC
  322. select MIPS_BOARDS_GEN
  323. select MIPS_CPU_SCACHE
  324. select MIPS_MSC
  325. select SYS_HAS_CPU_MIPS32_R1
  326. select SYS_HAS_CPU_MIPS32_R2
  327. select SYS_HAS_CPU_MIPS64_R1
  328. select SYS_HAS_EARLY_PRINTK
  329. select SYS_SUPPORTS_32BIT_KERNEL
  330. select SYS_SUPPORTS_64BIT_KERNEL
  331. select SYS_SUPPORTS_BIG_ENDIAN
  332. select SYS_SUPPORTS_LITTLE_ENDIAN
  333. select SYS_SUPPORTS_SMARTMIPS
  334. select USB_ARCH_HAS_EHCI
  335. select USB_EHCI_BIG_ENDIAN_DESC
  336. select USB_EHCI_BIG_ENDIAN_MMIO
  337. select USE_OF
  338. help
  339. This enables support for the MIPS Technologies SEAD3 evaluation
  340. board.
  341. config NEC_MARKEINS
  342. bool "NEC EMMA2RH Mark-eins board"
  343. select SOC_EMMA2RH
  344. select HW_HAS_PCI
  345. help
  346. This enables support for the NEC Electronics Mark-eins boards.
  347. config MACH_VR41XX
  348. bool "NEC VR4100 series based machines"
  349. select CEVT_R4K
  350. select CSRC_R4K
  351. select SYS_HAS_CPU_VR41XX
  352. select ARCH_REQUIRE_GPIOLIB
  353. config NXP_STB220
  354. bool "NXP STB220 board"
  355. select SOC_PNX833X
  356. help
  357. Support for NXP Semiconductors STB220 Development Board.
  358. config NXP_STB225
  359. bool "NXP 225 board"
  360. select SOC_PNX833X
  361. select SOC_PNX8335
  362. help
  363. Support for NXP Semiconductors STB225 Development Board.
  364. config PMC_MSP
  365. bool "PMC-Sierra MSP chipsets"
  366. select CEVT_R4K
  367. select CSRC_R4K
  368. select DMA_NONCOHERENT
  369. select SWAP_IO_SPACE
  370. select NO_EXCEPT_FILL
  371. select BOOT_RAW
  372. select SYS_HAS_CPU_MIPS32_R1
  373. select SYS_HAS_CPU_MIPS32_R2
  374. select SYS_SUPPORTS_32BIT_KERNEL
  375. select SYS_SUPPORTS_BIG_ENDIAN
  376. select IRQ_CPU
  377. select SERIAL_8250
  378. select SERIAL_8250_CONSOLE
  379. select USB_EHCI_BIG_ENDIAN_MMIO
  380. select USB_EHCI_BIG_ENDIAN_DESC
  381. help
  382. This adds support for the PMC-Sierra family of Multi-Service
  383. Processor System-On-A-Chips. These parts include a number
  384. of integrated peripherals, interfaces and DSPs in addition to
  385. a variety of MIPS cores.
  386. config POWERTV
  387. bool "Cisco PowerTV"
  388. select BOOT_ELF32
  389. select CEVT_R4K
  390. select CPU_MIPSR2_IRQ_VI
  391. select CPU_MIPSR2_IRQ_EI
  392. select CSRC_POWERTV
  393. select DMA_NONCOHERENT
  394. select HW_HAS_PCI
  395. select SYS_HAS_EARLY_PRINTK
  396. select SYS_HAS_CPU_MIPS32_R2
  397. select SYS_SUPPORTS_32BIT_KERNEL
  398. select SYS_SUPPORTS_BIG_ENDIAN
  399. select SYS_SUPPORTS_HIGHMEM
  400. select USB_OHCI_LITTLE_ENDIAN
  401. help
  402. This enables support for the Cisco PowerTV Platform.
  403. config RALINK
  404. bool "Ralink based machines"
  405. select CEVT_R4K
  406. select CSRC_R4K
  407. select BOOT_RAW
  408. select DMA_NONCOHERENT
  409. select IRQ_CPU
  410. select USE_OF
  411. select SYS_HAS_CPU_MIPS32_R1
  412. select SYS_HAS_CPU_MIPS32_R2
  413. select SYS_SUPPORTS_32BIT_KERNEL
  414. select SYS_SUPPORTS_LITTLE_ENDIAN
  415. select SYS_HAS_EARLY_PRINTK
  416. select HAVE_MACH_CLKDEV
  417. select CLKDEV_LOOKUP
  418. config SGI_IP22
  419. bool "SGI IP22 (Indy/Indigo2)"
  420. select FW_ARC
  421. select FW_ARC32
  422. select BOOT_ELF32
  423. select CEVT_R4K
  424. select CSRC_R4K
  425. select DEFAULT_SGI_PARTITION
  426. select DMA_NONCOHERENT
  427. select HW_HAS_EISA
  428. select I8253
  429. select I8259
  430. select IP22_CPU_SCACHE
  431. select IRQ_CPU
  432. select GENERIC_ISA_DMA_SUPPORT_BROKEN
  433. select SGI_HAS_I8042
  434. select SGI_HAS_INDYDOG
  435. select SGI_HAS_HAL2
  436. select SGI_HAS_SEEQ
  437. select SGI_HAS_WD93
  438. select SGI_HAS_ZILOG
  439. select SWAP_IO_SPACE
  440. select SYS_HAS_CPU_R4X00
  441. select SYS_HAS_CPU_R5000
  442. #
  443. # Disable EARLY_PRINTK for now since it leads to overwritten prom
  444. # memory during early boot on some machines.
  445. #
  446. # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
  447. # for a more details discussion
  448. #
  449. # select SYS_HAS_EARLY_PRINTK
  450. select SYS_SUPPORTS_32BIT_KERNEL
  451. select SYS_SUPPORTS_64BIT_KERNEL
  452. select SYS_SUPPORTS_BIG_ENDIAN
  453. help
  454. This are the SGI Indy, Challenge S and Indigo2, as well as certain
  455. OEM variants like the Tandem CMN B006S. To compile a Linux kernel
  456. that runs on these, say Y here.
  457. config SGI_IP27
  458. bool "SGI IP27 (Origin200/2000)"
  459. select FW_ARC
  460. select FW_ARC64
  461. select BOOT_ELF64
  462. select DEFAULT_SGI_PARTITION
  463. select DMA_COHERENT
  464. select SYS_HAS_EARLY_PRINTK
  465. select HW_HAS_PCI
  466. select NR_CPUS_DEFAULT_64
  467. select SYS_HAS_CPU_R10000
  468. select SYS_SUPPORTS_64BIT_KERNEL
  469. select SYS_SUPPORTS_BIG_ENDIAN
  470. select SYS_SUPPORTS_NUMA
  471. select SYS_SUPPORTS_SMP
  472. help
  473. This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
  474. workstations. To compile a Linux kernel that runs on these, say Y
  475. here.
  476. config SGI_IP28
  477. bool "SGI IP28 (Indigo2 R10k)"
  478. select FW_ARC
  479. select FW_ARC64
  480. select BOOT_ELF64
  481. select CEVT_R4K
  482. select CSRC_R4K
  483. select DEFAULT_SGI_PARTITION
  484. select DMA_NONCOHERENT
  485. select GENERIC_ISA_DMA_SUPPORT_BROKEN
  486. select IRQ_CPU
  487. select HW_HAS_EISA
  488. select I8253
  489. select I8259
  490. select SGI_HAS_I8042
  491. select SGI_HAS_INDYDOG
  492. select SGI_HAS_HAL2
  493. select SGI_HAS_SEEQ
  494. select SGI_HAS_WD93
  495. select SGI_HAS_ZILOG
  496. select SWAP_IO_SPACE
  497. select SYS_HAS_CPU_R10000
  498. #
  499. # Disable EARLY_PRINTK for now since it leads to overwritten prom
  500. # memory during early boot on some machines.
  501. #
  502. # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
  503. # for a more details discussion
  504. #
  505. # select SYS_HAS_EARLY_PRINTK
  506. select SYS_SUPPORTS_64BIT_KERNEL
  507. select SYS_SUPPORTS_BIG_ENDIAN
  508. help
  509. This is the SGI Indigo2 with R10000 processor. To compile a Linux
  510. kernel that runs on these, say Y here.
  511. config SGI_IP32
  512. bool "SGI IP32 (O2)"
  513. select FW_ARC
  514. select FW_ARC32
  515. select BOOT_ELF32
  516. select CEVT_R4K
  517. select CSRC_R4K
  518. select DMA_NONCOHERENT
  519. select HW_HAS_PCI
  520. select IRQ_CPU
  521. select R5000_CPU_SCACHE
  522. select RM7000_CPU_SCACHE
  523. select SYS_HAS_CPU_R5000
  524. select SYS_HAS_CPU_R10000 if BROKEN
  525. select SYS_HAS_CPU_RM7000
  526. select SYS_HAS_CPU_NEVADA
  527. select SYS_SUPPORTS_64BIT_KERNEL
  528. select SYS_SUPPORTS_BIG_ENDIAN
  529. help
  530. If you want this kernel to run on SGI O2 workstation, say Y here.
  531. config SIBYTE_CRHINE
  532. bool "Sibyte BCM91120C-CRhine"
  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_CARMEL
  541. bool "Sibyte BCM91120x-Carmel"
  542. select BOOT_ELF32
  543. select DMA_COHERENT
  544. select SIBYTE_BCM1120
  545. select SWAP_IO_SPACE
  546. select SYS_HAS_CPU_SB1
  547. select SYS_SUPPORTS_BIG_ENDIAN
  548. select SYS_SUPPORTS_LITTLE_ENDIAN
  549. config SIBYTE_CRHONE
  550. bool "Sibyte BCM91125C-CRhone"
  551. select BOOT_ELF32
  552. select DMA_COHERENT
  553. select SIBYTE_BCM1125
  554. select SWAP_IO_SPACE
  555. select SYS_HAS_CPU_SB1
  556. select SYS_SUPPORTS_BIG_ENDIAN
  557. select SYS_SUPPORTS_HIGHMEM
  558. select SYS_SUPPORTS_LITTLE_ENDIAN
  559. config SIBYTE_RHONE
  560. bool "Sibyte BCM91125E-Rhone"
  561. select BOOT_ELF32
  562. select DMA_COHERENT
  563. select SIBYTE_BCM1125H
  564. select SWAP_IO_SPACE
  565. select SYS_HAS_CPU_SB1
  566. select SYS_SUPPORTS_BIG_ENDIAN
  567. select SYS_SUPPORTS_LITTLE_ENDIAN
  568. config SIBYTE_SWARM
  569. bool "Sibyte BCM91250A-SWARM"
  570. select BOOT_ELF32
  571. select DMA_COHERENT
  572. select HAVE_PATA_PLATFORM
  573. select NR_CPUS_DEFAULT_2
  574. select SIBYTE_SB1250
  575. select SWAP_IO_SPACE
  576. select SYS_HAS_CPU_SB1
  577. select SYS_SUPPORTS_BIG_ENDIAN
  578. select SYS_SUPPORTS_HIGHMEM
  579. select SYS_SUPPORTS_LITTLE_ENDIAN
  580. select ZONE_DMA32 if 64BIT
  581. config SIBYTE_LITTLESUR
  582. bool "Sibyte BCM91250C2-LittleSur"
  583. select BOOT_ELF32
  584. select DMA_COHERENT
  585. select HAVE_PATA_PLATFORM
  586. select NR_CPUS_DEFAULT_2
  587. select SIBYTE_SB1250
  588. select SWAP_IO_SPACE
  589. select SYS_HAS_CPU_SB1
  590. select SYS_SUPPORTS_BIG_ENDIAN
  591. select SYS_SUPPORTS_HIGHMEM
  592. select SYS_SUPPORTS_LITTLE_ENDIAN
  593. config SIBYTE_SENTOSA
  594. bool "Sibyte BCM91250E-Sentosa"
  595. select BOOT_ELF32
  596. select DMA_COHERENT
  597. select NR_CPUS_DEFAULT_2
  598. select SIBYTE_SB1250
  599. select SWAP_IO_SPACE
  600. select SYS_HAS_CPU_SB1
  601. select SYS_SUPPORTS_BIG_ENDIAN
  602. select SYS_SUPPORTS_LITTLE_ENDIAN
  603. config SIBYTE_BIGSUR
  604. bool "Sibyte BCM91480B-BigSur"
  605. select BOOT_ELF32
  606. select DMA_COHERENT
  607. select NR_CPUS_DEFAULT_4
  608. select SIBYTE_BCM1x80
  609. select SWAP_IO_SPACE
  610. select SYS_HAS_CPU_SB1
  611. select SYS_SUPPORTS_BIG_ENDIAN
  612. select SYS_SUPPORTS_HIGHMEM
  613. select SYS_SUPPORTS_LITTLE_ENDIAN
  614. select ZONE_DMA32 if 64BIT
  615. config SNI_RM
  616. bool "SNI RM200/300/400"
  617. select FW_ARC if CPU_LITTLE_ENDIAN
  618. select FW_ARC32 if CPU_LITTLE_ENDIAN
  619. select FW_SNIPROM if CPU_BIG_ENDIAN
  620. select ARCH_MAY_HAVE_PC_FDC
  621. select BOOT_ELF32
  622. select CEVT_R4K
  623. select CSRC_R4K
  624. select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
  625. select DMA_NONCOHERENT
  626. select GENERIC_ISA_DMA
  627. select HAVE_PCSPKR_PLATFORM
  628. select HW_HAS_EISA
  629. select HW_HAS_PCI
  630. select IRQ_CPU
  631. select I8253
  632. select I8259
  633. select ISA
  634. select SWAP_IO_SPACE if CPU_BIG_ENDIAN
  635. select SYS_HAS_CPU_R4X00
  636. select SYS_HAS_CPU_R5000
  637. select SYS_HAS_CPU_R10000
  638. select R5000_CPU_SCACHE
  639. select SYS_HAS_EARLY_PRINTK
  640. select SYS_SUPPORTS_32BIT_KERNEL
  641. select SYS_SUPPORTS_64BIT_KERNEL
  642. select SYS_SUPPORTS_BIG_ENDIAN
  643. select SYS_SUPPORTS_HIGHMEM
  644. select SYS_SUPPORTS_LITTLE_ENDIAN
  645. help
  646. The SNI RM200/300/400 are MIPS-based machines manufactured by
  647. Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
  648. Technology and now in turn merged with Fujitsu. Say Y here to
  649. support this machine type.
  650. config MACH_TX39XX
  651. bool "Toshiba TX39 series based machines"
  652. config MACH_TX49XX
  653. bool "Toshiba TX49 series based machines"
  654. config MIKROTIK_RB532
  655. bool "Mikrotik RB532 boards"
  656. select CEVT_R4K
  657. select CSRC_R4K
  658. select DMA_NONCOHERENT
  659. select HW_HAS_PCI
  660. select IRQ_CPU
  661. select SYS_HAS_CPU_MIPS32_R1
  662. select SYS_SUPPORTS_32BIT_KERNEL
  663. select SYS_SUPPORTS_LITTLE_ENDIAN
  664. select SWAP_IO_SPACE
  665. select BOOT_RAW
  666. select ARCH_REQUIRE_GPIOLIB
  667. help
  668. Support the Mikrotik(tm) RouterBoard 532 series,
  669. based on the IDT RC32434 SoC.
  670. config WR_PPMC
  671. bool "Wind River PPMC board"
  672. select CEVT_R4K
  673. select CSRC_R4K
  674. select IRQ_CPU
  675. select BOOT_ELF32
  676. select DMA_NONCOHERENT
  677. select HW_HAS_PCI
  678. select PCI_GT64XXX_PCI0
  679. select SWAP_IO_SPACE
  680. select SYS_HAS_CPU_MIPS32_R1
  681. select SYS_HAS_CPU_MIPS32_R2
  682. select SYS_HAS_CPU_MIPS64_R1
  683. select SYS_HAS_CPU_NEVADA
  684. select SYS_HAS_CPU_RM7000
  685. select SYS_SUPPORTS_32BIT_KERNEL
  686. select SYS_SUPPORTS_64BIT_KERNEL
  687. select SYS_SUPPORTS_BIG_ENDIAN
  688. select SYS_SUPPORTS_LITTLE_ENDIAN
  689. help
  690. This enables support for the Wind River MIPS32 4KC PPMC evaluation
  691. board, which is based on GT64120 bridge chip.
  692. config CAVIUM_OCTEON_SIMULATOR
  693. bool "Cavium Networks Octeon Simulator"
  694. select CEVT_R4K
  695. select 64BIT_PHYS_ADDR
  696. select DMA_COHERENT
  697. select SYS_SUPPORTS_64BIT_KERNEL
  698. select SYS_SUPPORTS_BIG_ENDIAN
  699. select SYS_SUPPORTS_HOTPLUG_CPU
  700. select SYS_HAS_CPU_CAVIUM_OCTEON
  701. select HOLES_IN_ZONE
  702. help
  703. The Octeon simulator is software performance model of the Cavium
  704. Octeon Processor. It supports simulating Octeon processors on x86
  705. hardware.
  706. config CAVIUM_OCTEON_REFERENCE_BOARD
  707. bool "Cavium Networks Octeon reference board"
  708. select CEVT_R4K
  709. select 64BIT_PHYS_ADDR
  710. select DMA_COHERENT
  711. select SYS_SUPPORTS_64BIT_KERNEL
  712. select SYS_SUPPORTS_BIG_ENDIAN
  713. select EDAC_SUPPORT
  714. select SYS_SUPPORTS_HOTPLUG_CPU
  715. select SYS_HAS_EARLY_PRINTK
  716. select SYS_HAS_CPU_CAVIUM_OCTEON
  717. select SWAP_IO_SPACE
  718. select HW_HAS_PCI
  719. select ARCH_SUPPORTS_MSI
  720. select ZONE_DMA32
  721. select USB_ARCH_HAS_OHCI
  722. select USB_ARCH_HAS_EHCI
  723. select HOLES_IN_ZONE
  724. help
  725. This option supports all of the Octeon reference boards from Cavium
  726. Networks. It builds a kernel that dynamically determines the Octeon
  727. CPU type and supports all known board reference implementations.
  728. Some of the supported boards are:
  729. EBT3000
  730. EBH3000
  731. EBH3100
  732. Thunder
  733. Kodama
  734. Hikari
  735. Say Y here for most Octeon reference boards.
  736. config NLM_XLR_BOARD
  737. bool "Netlogic XLR/XLS based systems"
  738. select BOOT_ELF32
  739. select NLM_COMMON
  740. select SYS_HAS_CPU_XLR
  741. select SYS_SUPPORTS_SMP
  742. select HW_HAS_PCI
  743. select SWAP_IO_SPACE
  744. select SYS_SUPPORTS_32BIT_KERNEL
  745. select SYS_SUPPORTS_64BIT_KERNEL
  746. select 64BIT_PHYS_ADDR
  747. select SYS_SUPPORTS_BIG_ENDIAN
  748. select SYS_SUPPORTS_HIGHMEM
  749. select DMA_COHERENT
  750. select NR_CPUS_DEFAULT_32
  751. select CEVT_R4K
  752. select CSRC_R4K
  753. select IRQ_CPU
  754. select ARCH_SUPPORTS_MSI
  755. select ZONE_DMA32 if 64BIT
  756. select SYNC_R4K
  757. select SYS_HAS_EARLY_PRINTK
  758. select USB_ARCH_HAS_OHCI if USB_SUPPORT
  759. select USB_ARCH_HAS_EHCI if USB_SUPPORT
  760. help
  761. Support for systems based on Netlogic XLR and XLS processors.
  762. Say Y here if you have a XLR or XLS based board.
  763. config NLM_XLP_BOARD
  764. bool "Netlogic XLP based systems"
  765. select BOOT_ELF32
  766. select NLM_COMMON
  767. select SYS_HAS_CPU_XLP
  768. select SYS_SUPPORTS_SMP
  769. select HW_HAS_PCI
  770. select SYS_SUPPORTS_32BIT_KERNEL
  771. select SYS_SUPPORTS_64BIT_KERNEL
  772. select 64BIT_PHYS_ADDR
  773. select SYS_SUPPORTS_BIG_ENDIAN
  774. select SYS_SUPPORTS_LITTLE_ENDIAN
  775. select SYS_SUPPORTS_HIGHMEM
  776. select DMA_COHERENT
  777. select NR_CPUS_DEFAULT_32
  778. select CEVT_R4K
  779. select CSRC_R4K
  780. select IRQ_CPU
  781. select ZONE_DMA32 if 64BIT
  782. select SYNC_R4K
  783. select SYS_HAS_EARLY_PRINTK
  784. select USE_OF
  785. help
  786. This board is based on Netlogic XLP Processor.
  787. Say Y here if you have a XLP based board.
  788. endchoice
  789. source "arch/mips/alchemy/Kconfig"
  790. source "arch/mips/ath79/Kconfig"
  791. source "arch/mips/bcm47xx/Kconfig"
  792. source "arch/mips/bcm63xx/Kconfig"
  793. source "arch/mips/jazz/Kconfig"
  794. source "arch/mips/jz4740/Kconfig"
  795. source "arch/mips/lantiq/Kconfig"
  796. source "arch/mips/lasat/Kconfig"
  797. source "arch/mips/pmcs-msp71xx/Kconfig"
  798. source "arch/mips/powertv/Kconfig"
  799. source "arch/mips/ralink/Kconfig"
  800. source "arch/mips/sgi-ip27/Kconfig"
  801. source "arch/mips/sibyte/Kconfig"
  802. source "arch/mips/txx9/Kconfig"
  803. source "arch/mips/vr41xx/Kconfig"
  804. source "arch/mips/cavium-octeon/Kconfig"
  805. source "arch/mips/loongson/Kconfig"
  806. source "arch/mips/loongson1/Kconfig"
  807. source "arch/mips/netlogic/Kconfig"
  808. endmenu
  809. config RWSEM_GENERIC_SPINLOCK
  810. bool
  811. default y
  812. config RWSEM_XCHGADD_ALGORITHM
  813. bool
  814. config ARCH_HAS_ILOG2_U32
  815. bool
  816. default n
  817. config ARCH_HAS_ILOG2_U64
  818. bool
  819. default n
  820. config GENERIC_HWEIGHT
  821. bool
  822. default y
  823. config GENERIC_CALIBRATE_DELAY
  824. bool
  825. default y
  826. config SCHED_OMIT_FRAME_POINTER
  827. bool
  828. default y
  829. #
  830. # Select some configuration options automatically based on user selections.
  831. #
  832. config FW_ARC
  833. bool
  834. config ARCH_MAY_HAVE_PC_FDC
  835. bool
  836. config BOOT_RAW
  837. bool
  838. config CEVT_BCM1480
  839. bool
  840. config CEVT_DS1287
  841. bool
  842. config CEVT_GT641XX
  843. bool
  844. config CEVT_R4K
  845. bool
  846. config CEVT_SB1250
  847. bool
  848. config CEVT_TXX9
  849. bool
  850. config CSRC_BCM1480
  851. bool
  852. config CSRC_IOASIC
  853. bool
  854. config CSRC_POWERTV
  855. bool
  856. config CSRC_R4K
  857. bool
  858. config CSRC_GIC
  859. bool
  860. config CSRC_SB1250
  861. bool
  862. config GPIO_TXX9
  863. select GENERIC_GPIO
  864. select ARCH_REQUIRE_GPIOLIB
  865. bool
  866. config FW_CFE
  867. bool
  868. config ARCH_DMA_ADDR_T_64BIT
  869. def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
  870. config DMA_COHERENT
  871. bool
  872. config DMA_NONCOHERENT
  873. bool
  874. select NEED_DMA_MAP_STATE
  875. config NEED_DMA_MAP_STATE
  876. bool
  877. config SYS_HAS_EARLY_PRINTK
  878. bool
  879. config HOTPLUG_CPU
  880. bool "Support for hot-pluggable CPUs"
  881. depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
  882. help
  883. Say Y here to allow turning CPUs off and on. CPUs can be
  884. controlled through /sys/devices/system/cpu.
  885. (Note: power management support will enable this option
  886. automatically on SMP systems. )
  887. Say N if you want to disable CPU hotplug.
  888. config SYS_SUPPORTS_HOTPLUG_CPU
  889. bool
  890. config I8259
  891. bool
  892. config MIPS_BONITO64
  893. bool
  894. config MIPS_MSC
  895. bool
  896. config MIPS_NILE4
  897. bool
  898. config MIPS_DISABLE_OBSOLETE_IDE
  899. bool
  900. config SYNC_R4K
  901. bool
  902. config MIPS_MACHINE
  903. def_bool n
  904. config NO_IOPORT
  905. def_bool n
  906. config GENERIC_ISA_DMA
  907. bool
  908. select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
  909. select ISA_DMA_API
  910. config GENERIC_ISA_DMA_SUPPORT_BROKEN
  911. bool
  912. select GENERIC_ISA_DMA
  913. config ISA_DMA_API
  914. bool
  915. config GENERIC_GPIO
  916. bool
  917. config HOLES_IN_ZONE
  918. bool
  919. #
  920. # Endianness selection. Sufficiently obscure so many users don't know what to
  921. # answer,so we try hard to limit the available choices. Also the use of a
  922. # choice statement should be more obvious to the user.
  923. #
  924. choice
  925. prompt "Endianness selection"
  926. help
  927. Some MIPS machines can be configured for either little or big endian
  928. byte order. These modes require different kernels and a different
  929. Linux distribution. In general there is one preferred byteorder for a
  930. particular system but some systems are just as commonly used in the
  931. one or the other endianness.
  932. config CPU_BIG_ENDIAN
  933. bool "Big endian"
  934. depends on SYS_SUPPORTS_BIG_ENDIAN
  935. config CPU_LITTLE_ENDIAN
  936. bool "Little endian"
  937. depends on SYS_SUPPORTS_LITTLE_ENDIAN
  938. help
  939. endchoice
  940. config EXPORT_UASM
  941. bool
  942. config SYS_SUPPORTS_APM_EMULATION
  943. bool
  944. config SYS_SUPPORTS_BIG_ENDIAN
  945. bool
  946. config SYS_SUPPORTS_LITTLE_ENDIAN
  947. bool
  948. config SYS_SUPPORTS_HUGETLBFS
  949. bool
  950. depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
  951. default y
  952. config MIPS_HUGE_TLB_SUPPORT
  953. def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
  954. config IRQ_CPU
  955. bool
  956. config IRQ_CPU_RM7K
  957. bool
  958. config IRQ_MSP_SLP
  959. bool
  960. config IRQ_MSP_CIC
  961. bool
  962. config IRQ_TXX9
  963. bool
  964. config IRQ_GT641XX
  965. bool
  966. config IRQ_GIC
  967. bool
  968. config MIPS_BOARDS_GEN
  969. bool
  970. config PCI_GT64XXX_PCI0
  971. bool
  972. config NO_EXCEPT_FILL
  973. bool
  974. config SOC_EMMA2RH
  975. bool
  976. select CEVT_R4K
  977. select CSRC_R4K
  978. select DMA_NONCOHERENT
  979. select IRQ_CPU
  980. select SWAP_IO_SPACE
  981. select SYS_HAS_CPU_R5500
  982. select SYS_SUPPORTS_32BIT_KERNEL
  983. select SYS_SUPPORTS_64BIT_KERNEL
  984. select SYS_SUPPORTS_BIG_ENDIAN
  985. config SOC_PNX833X
  986. bool
  987. select CEVT_R4K
  988. select CSRC_R4K
  989. select IRQ_CPU
  990. select DMA_NONCOHERENT
  991. select SYS_HAS_CPU_MIPS32_R2
  992. select SYS_SUPPORTS_32BIT_KERNEL
  993. select SYS_SUPPORTS_LITTLE_ENDIAN
  994. select SYS_SUPPORTS_BIG_ENDIAN
  995. select GENERIC_GPIO
  996. select CPU_MIPSR2_IRQ_VI
  997. config SOC_PNX8335
  998. bool
  999. select SOC_PNX833X
  1000. config SWAP_IO_SPACE
  1001. bool
  1002. config SGI_HAS_INDYDOG
  1003. bool
  1004. config SGI_HAS_HAL2
  1005. bool
  1006. config SGI_HAS_SEEQ
  1007. bool
  1008. config SGI_HAS_WD93
  1009. bool
  1010. config SGI_HAS_ZILOG
  1011. bool
  1012. config SGI_HAS_I8042
  1013. bool
  1014. config DEFAULT_SGI_PARTITION
  1015. bool
  1016. config FW_ARC32
  1017. bool
  1018. config FW_SNIPROM
  1019. bool
  1020. config BOOT_ELF32
  1021. bool
  1022. config MIPS_L1_CACHE_SHIFT
  1023. int
  1024. default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
  1025. default "6" if MIPS_CPU_SCACHE
  1026. default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
  1027. default "5"
  1028. config HAVE_STD_PC_SERIAL_PORT
  1029. bool
  1030. config ARC_CONSOLE
  1031. bool "ARC console support"
  1032. depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
  1033. config ARC_MEMORY
  1034. bool
  1035. depends on MACH_JAZZ || SNI_RM || SGI_IP32
  1036. default y
  1037. config ARC_PROMLIB
  1038. bool
  1039. depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
  1040. default y
  1041. config FW_ARC64
  1042. bool
  1043. config BOOT_ELF64
  1044. bool
  1045. menu "CPU selection"
  1046. choice
  1047. prompt "CPU type"
  1048. default CPU_R4X00
  1049. config CPU_LOONGSON2E
  1050. bool "Loongson 2E"
  1051. depends on SYS_HAS_CPU_LOONGSON2E
  1052. select CPU_LOONGSON2
  1053. help
  1054. The Loongson 2E processor implements the MIPS III instruction set
  1055. with many extensions.
  1056. It has an internal FPGA northbridge, which is compatible to
  1057. bonito64.
  1058. config CPU_LOONGSON2F
  1059. bool "Loongson 2F"
  1060. depends on SYS_HAS_CPU_LOONGSON2F
  1061. select CPU_LOONGSON2
  1062. select GENERIC_GPIO
  1063. select ARCH_REQUIRE_GPIOLIB
  1064. help
  1065. The Loongson 2F processor implements the MIPS III instruction set
  1066. with many extensions.
  1067. Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
  1068. have a similar programming interface with FPGA northbridge used in
  1069. Loongson2E.
  1070. config CPU_LOONGSON1B
  1071. bool "Loongson 1B"
  1072. depends on SYS_HAS_CPU_LOONGSON1B
  1073. select CPU_LOONGSON1
  1074. help
  1075. The Loongson 1B is a 32-bit SoC, which implements the MIPS32
  1076. release 2 instruction set.
  1077. config CPU_MIPS32_R1
  1078. bool "MIPS32 Release 1"
  1079. depends on SYS_HAS_CPU_MIPS32_R1
  1080. select CPU_HAS_PREFETCH
  1081. select CPU_SUPPORTS_32BIT_KERNEL
  1082. select CPU_SUPPORTS_HIGHMEM
  1083. help
  1084. Choose this option to build a kernel for release 1 or later of the
  1085. MIPS32 architecture. Most modern embedded systems with a 32-bit
  1086. MIPS processor are based on a MIPS32 processor. If you know the
  1087. specific type of processor in your system, choose those that one
  1088. otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
  1089. Release 2 of the MIPS32 architecture is available since several
  1090. years so chances are you even have a MIPS32 Release 2 processor
  1091. in which case you should choose CPU_MIPS32_R2 instead for better
  1092. performance.
  1093. config CPU_MIPS32_R2
  1094. bool "MIPS32 Release 2"
  1095. depends on SYS_HAS_CPU_MIPS32_R2
  1096. select CPU_HAS_PREFETCH
  1097. select CPU_SUPPORTS_32BIT_KERNEL
  1098. select CPU_SUPPORTS_HIGHMEM
  1099. help
  1100. Choose this option to build a kernel for release 2 or later of the
  1101. MIPS32 architecture. Most modern embedded systems with a 32-bit
  1102. MIPS processor are based on a MIPS32 processor. If you know the
  1103. specific type of processor in your system, choose those that one
  1104. otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
  1105. config CPU_MIPS64_R1
  1106. bool "MIPS64 Release 1"
  1107. depends on SYS_HAS_CPU_MIPS64_R1
  1108. select CPU_HAS_PREFETCH
  1109. select CPU_SUPPORTS_32BIT_KERNEL
  1110. select CPU_SUPPORTS_64BIT_KERNEL
  1111. select CPU_SUPPORTS_HIGHMEM
  1112. select CPU_SUPPORTS_HUGEPAGES
  1113. help
  1114. Choose this option to build a kernel for release 1 or later of the
  1115. MIPS64 architecture. Many modern embedded systems with a 64-bit
  1116. MIPS processor are based on a MIPS64 processor. If you know the
  1117. specific type of processor in your system, choose those that one
  1118. otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
  1119. Release 2 of the MIPS64 architecture is available since several
  1120. years so chances are you even have a MIPS64 Release 2 processor
  1121. in which case you should choose CPU_MIPS64_R2 instead for better
  1122. performance.
  1123. config CPU_MIPS64_R2
  1124. bool "MIPS64 Release 2"
  1125. depends on SYS_HAS_CPU_MIPS64_R2
  1126. select CPU_HAS_PREFETCH
  1127. select CPU_SUPPORTS_32BIT_KERNEL
  1128. select CPU_SUPPORTS_64BIT_KERNEL
  1129. select CPU_SUPPORTS_HIGHMEM
  1130. select CPU_SUPPORTS_HUGEPAGES
  1131. help
  1132. Choose this option to build a kernel for release 2 or later of the
  1133. MIPS64 architecture. Many modern embedded systems with a 64-bit
  1134. MIPS processor are based on a MIPS64 processor. If you know the
  1135. specific type of processor in your system, choose those that one
  1136. otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
  1137. config CPU_R3000
  1138. bool "R3000"
  1139. depends on SYS_HAS_CPU_R3000
  1140. select CPU_HAS_WB
  1141. select CPU_SUPPORTS_32BIT_KERNEL
  1142. select CPU_SUPPORTS_HIGHMEM
  1143. help
  1144. Please make sure to pick the right CPU type. Linux/MIPS is not
  1145. designed to be generic, i.e. Kernels compiled for R3000 CPUs will
  1146. *not* work on R4000 machines and vice versa. However, since most
  1147. of the supported machines have an R4000 (or similar) CPU, R4x00
  1148. might be a safe bet. If the resulting kernel does not work,
  1149. try to recompile with R3000.
  1150. config CPU_TX39XX
  1151. bool "R39XX"
  1152. depends on SYS_HAS_CPU_TX39XX
  1153. select CPU_SUPPORTS_32BIT_KERNEL
  1154. config CPU_VR41XX
  1155. bool "R41xx"
  1156. depends on SYS_HAS_CPU_VR41XX
  1157. select CPU_SUPPORTS_32BIT_KERNEL
  1158. select CPU_SUPPORTS_64BIT_KERNEL
  1159. help
  1160. The options selects support for the NEC VR4100 series of processors.
  1161. Only choose this option if you have one of these processors as a
  1162. kernel built with this option will not run on any other type of
  1163. processor or vice versa.
  1164. config CPU_R4300
  1165. bool "R4300"
  1166. depends on SYS_HAS_CPU_R4300
  1167. select CPU_SUPPORTS_32BIT_KERNEL
  1168. select CPU_SUPPORTS_64BIT_KERNEL
  1169. help
  1170. MIPS Technologies R4300-series processors.
  1171. config CPU_R4X00
  1172. bool "R4x00"
  1173. depends on SYS_HAS_CPU_R4X00
  1174. select CPU_SUPPORTS_32BIT_KERNEL
  1175. select CPU_SUPPORTS_64BIT_KERNEL
  1176. select CPU_SUPPORTS_HUGEPAGES
  1177. help
  1178. MIPS Technologies R4000-series processors other than 4300, including
  1179. the R4000, R4400, R4600, and 4700.
  1180. config CPU_TX49XX
  1181. bool "R49XX"
  1182. depends on SYS_HAS_CPU_TX49XX
  1183. select CPU_HAS_PREFETCH
  1184. select CPU_SUPPORTS_32BIT_KERNEL
  1185. select CPU_SUPPORTS_64BIT_KERNEL
  1186. select CPU_SUPPORTS_HUGEPAGES
  1187. config CPU_R5000
  1188. bool "R5000"
  1189. depends on SYS_HAS_CPU_R5000
  1190. select CPU_SUPPORTS_32BIT_KERNEL
  1191. select CPU_SUPPORTS_64BIT_KERNEL
  1192. select CPU_SUPPORTS_HUGEPAGES
  1193. help
  1194. MIPS Technologies R5000-series processors other than the Nevada.
  1195. config CPU_R5432
  1196. bool "R5432"
  1197. depends on SYS_HAS_CPU_R5432
  1198. select CPU_SUPPORTS_32BIT_KERNEL
  1199. select CPU_SUPPORTS_64BIT_KERNEL
  1200. select CPU_SUPPORTS_HUGEPAGES
  1201. config CPU_R5500
  1202. bool "R5500"
  1203. depends on SYS_HAS_CPU_R5500
  1204. select CPU_SUPPORTS_32BIT_KERNEL
  1205. select CPU_SUPPORTS_64BIT_KERNEL
  1206. select CPU_SUPPORTS_HUGEPAGES
  1207. help
  1208. NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
  1209. instruction set.
  1210. config CPU_R6000
  1211. bool "R6000"
  1212. depends on SYS_HAS_CPU_R6000
  1213. select CPU_SUPPORTS_32BIT_KERNEL
  1214. help
  1215. MIPS Technologies R6000 and R6000A series processors. Note these
  1216. processors are extremely rare and the support for them is incomplete.
  1217. config CPU_NEVADA
  1218. bool "RM52xx"
  1219. depends on SYS_HAS_CPU_NEVADA
  1220. select CPU_SUPPORTS_32BIT_KERNEL
  1221. select CPU_SUPPORTS_64BIT_KERNEL
  1222. select CPU_SUPPORTS_HUGEPAGES
  1223. help
  1224. QED / PMC-Sierra RM52xx-series ("Nevada") processors.
  1225. config CPU_R8000
  1226. bool "R8000"
  1227. depends on SYS_HAS_CPU_R8000
  1228. select CPU_HAS_PREFETCH
  1229. select CPU_SUPPORTS_64BIT_KERNEL
  1230. help
  1231. MIPS Technologies R8000 processors. Note these processors are
  1232. uncommon and the support for them is incomplete.
  1233. config CPU_R10000
  1234. bool "R10000"
  1235. depends on SYS_HAS_CPU_R10000
  1236. select CPU_HAS_PREFETCH
  1237. select CPU_SUPPORTS_32BIT_KERNEL
  1238. select CPU_SUPPORTS_64BIT_KERNEL
  1239. select CPU_SUPPORTS_HIGHMEM
  1240. select CPU_SUPPORTS_HUGEPAGES
  1241. help
  1242. MIPS Technologies R10000-series processors.
  1243. config CPU_RM7000
  1244. bool "RM7000"
  1245. depends on SYS_HAS_CPU_RM7000
  1246. select CPU_HAS_PREFETCH
  1247. select CPU_SUPPORTS_32BIT_KERNEL
  1248. select CPU_SUPPORTS_64BIT_KERNEL
  1249. select CPU_SUPPORTS_HIGHMEM
  1250. select CPU_SUPPORTS_HUGEPAGES
  1251. config CPU_SB1
  1252. bool "SB1"
  1253. depends on SYS_HAS_CPU_SB1
  1254. select CPU_SUPPORTS_32BIT_KERNEL
  1255. select CPU_SUPPORTS_64BIT_KERNEL
  1256. select CPU_SUPPORTS_HIGHMEM
  1257. select CPU_SUPPORTS_HUGEPAGES
  1258. select WEAK_ORDERING
  1259. config CPU_CAVIUM_OCTEON
  1260. bool "Cavium Octeon processor"
  1261. depends on SYS_HAS_CPU_CAVIUM_OCTEON
  1262. select ARCH_SPARSEMEM_ENABLE
  1263. select CPU_HAS_PREFETCH
  1264. select CPU_SUPPORTS_64BIT_KERNEL
  1265. select SYS_SUPPORTS_SMP
  1266. select NR_CPUS_DEFAULT_16
  1267. select WEAK_ORDERING
  1268. select CPU_SUPPORTS_HIGHMEM
  1269. select CPU_SUPPORTS_HUGEPAGES
  1270. select LIBFDT
  1271. select USE_OF
  1272. select USB_EHCI_BIG_ENDIAN_MMIO
  1273. help
  1274. The Cavium Octeon processor is a highly integrated chip containing
  1275. many ethernet hardware widgets for networking tasks. The processor
  1276. can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
  1277. Full details can be found at http://www.caviumnetworks.com.
  1278. config CPU_BMIPS3300
  1279. bool "BMIPS3300"
  1280. depends on SYS_HAS_CPU_BMIPS3300
  1281. select CPU_BMIPS
  1282. help
  1283. Broadcom BMIPS3300 processors.
  1284. config CPU_BMIPS4350
  1285. bool "BMIPS4350"
  1286. depends on SYS_HAS_CPU_BMIPS4350
  1287. select CPU_BMIPS
  1288. select SYS_SUPPORTS_SMP
  1289. select SYS_SUPPORTS_HOTPLUG_CPU
  1290. help
  1291. Broadcom BMIPS4350 ("VIPER") processors.
  1292. config CPU_BMIPS4380
  1293. bool "BMIPS4380"
  1294. depends on SYS_HAS_CPU_BMIPS4380
  1295. select CPU_BMIPS
  1296. select SYS_SUPPORTS_SMP
  1297. select SYS_SUPPORTS_HOTPLUG_CPU
  1298. help
  1299. Broadcom BMIPS4380 processors.
  1300. config CPU_BMIPS5000
  1301. bool "BMIPS5000"
  1302. depends on SYS_HAS_CPU_BMIPS5000
  1303. select CPU_BMIPS
  1304. select CPU_SUPPORTS_HIGHMEM
  1305. select MIPS_CPU_SCACHE
  1306. select SYS_SUPPORTS_SMP
  1307. select SYS_SUPPORTS_HOTPLUG_CPU
  1308. help
  1309. Broadcom BMIPS5000 processors.
  1310. config CPU_XLR
  1311. bool "Netlogic XLR SoC"
  1312. depends on SYS_HAS_CPU_XLR
  1313. select CPU_SUPPORTS_32BIT_KERNEL
  1314. select CPU_SUPPORTS_64BIT_KERNEL
  1315. select CPU_SUPPORTS_HIGHMEM
  1316. select CPU_SUPPORTS_HUGEPAGES
  1317. select WEAK_ORDERING
  1318. select WEAK_REORDERING_BEYOND_LLSC
  1319. help
  1320. Netlogic Microsystems XLR/XLS processors.
  1321. config CPU_XLP
  1322. bool "Netlogic XLP SoC"
  1323. depends on SYS_HAS_CPU_XLP
  1324. select CPU_SUPPORTS_32BIT_KERNEL
  1325. select CPU_SUPPORTS_64BIT_KERNEL
  1326. select CPU_SUPPORTS_HIGHMEM
  1327. select WEAK_ORDERING
  1328. select WEAK_REORDERING_BEYOND_LLSC
  1329. select CPU_HAS_PREFETCH
  1330. select CPU_MIPSR2
  1331. help
  1332. Netlogic Microsystems XLP processors.
  1333. endchoice
  1334. if CPU_LOONGSON2F
  1335. config CPU_NOP_WORKAROUNDS
  1336. bool
  1337. config CPU_JUMP_WORKAROUNDS
  1338. bool
  1339. config CPU_LOONGSON2F_WORKAROUNDS
  1340. bool "Loongson 2F Workarounds"
  1341. default y
  1342. select CPU_NOP_WORKAROUNDS
  1343. select CPU_JUMP_WORKAROUNDS
  1344. help
  1345. Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
  1346. require workarounds. Without workarounds the system may hang
  1347. unexpectedly. For more information please refer to the gas
  1348. -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
  1349. Loongson 2F03 and later have fixed these issues and no workarounds
  1350. are needed. The workarounds have no significant side effect on them
  1351. but may decrease the performance of the system so this option should
  1352. be disabled unless the kernel is intended to be run on 2F01 or 2F02
  1353. systems.
  1354. If unsure, please say Y.
  1355. endif # CPU_LOONGSON2F
  1356. config SYS_SUPPORTS_ZBOOT
  1357. bool
  1358. select HAVE_KERNEL_GZIP
  1359. select HAVE_KERNEL_BZIP2
  1360. select HAVE_KERNEL_LZMA
  1361. select HAVE_KERNEL_LZO
  1362. config SYS_SUPPORTS_ZBOOT_UART16550
  1363. bool
  1364. select SYS_SUPPORTS_ZBOOT
  1365. config CPU_LOONGSON2
  1366. bool
  1367. select CPU_SUPPORTS_32BIT_KERNEL
  1368. select CPU_SUPPORTS_64BIT_KERNEL
  1369. select CPU_SUPPORTS_HIGHMEM
  1370. select CPU_SUPPORTS_HUGEPAGES
  1371. config CPU_LOONGSON1
  1372. bool
  1373. select CPU_MIPS32
  1374. select CPU_MIPSR2
  1375. select CPU_HAS_PREFETCH
  1376. select CPU_SUPPORTS_32BIT_KERNEL
  1377. select CPU_SUPPORTS_HIGHMEM
  1378. config CPU_BMIPS
  1379. bool
  1380. select CPU_MIPS32
  1381. select CPU_SUPPORTS_32BIT_KERNEL
  1382. select DMA_NONCOHERENT
  1383. select IRQ_CPU
  1384. select SWAP_IO_SPACE
  1385. select WEAK_ORDERING
  1386. config SYS_HAS_CPU_LOONGSON2E
  1387. bool
  1388. config SYS_HAS_CPU_LOONGSON2F
  1389. bool
  1390. select CPU_SUPPORTS_CPUFREQ
  1391. select CPU_SUPPORTS_ADDRWINCFG if 64BIT
  1392. select CPU_SUPPORTS_UNCACHED_ACCELERATED
  1393. config SYS_HAS_CPU_LOONGSON1B
  1394. bool
  1395. config SYS_HAS_CPU_MIPS32_R1
  1396. bool
  1397. config SYS_HAS_CPU_MIPS32_R2
  1398. bool
  1399. config SYS_HAS_CPU_MIPS64_R1
  1400. bool
  1401. config SYS_HAS_CPU_MIPS64_R2
  1402. bool
  1403. config SYS_HAS_CPU_R3000
  1404. bool
  1405. config SYS_HAS_CPU_TX39XX
  1406. bool
  1407. config SYS_HAS_CPU_VR41XX
  1408. bool
  1409. config SYS_HAS_CPU_R4300
  1410. bool
  1411. config SYS_HAS_CPU_R4X00
  1412. bool
  1413. config SYS_HAS_CPU_TX49XX
  1414. bool
  1415. config SYS_HAS_CPU_R5000
  1416. bool
  1417. config SYS_HAS_CPU_R5432
  1418. bool
  1419. config SYS_HAS_CPU_R5500
  1420. bool
  1421. config SYS_HAS_CPU_R6000
  1422. bool
  1423. config SYS_HAS_CPU_NEVADA
  1424. bool
  1425. config SYS_HAS_CPU_R8000
  1426. bool
  1427. config SYS_HAS_CPU_R10000
  1428. bool
  1429. config SYS_HAS_CPU_RM7000
  1430. bool
  1431. config SYS_HAS_CPU_SB1
  1432. bool
  1433. config SYS_HAS_CPU_CAVIUM_OCTEON
  1434. bool
  1435. config SYS_HAS_CPU_BMIPS3300
  1436. bool
  1437. config SYS_HAS_CPU_BMIPS4350
  1438. bool
  1439. config SYS_HAS_CPU_BMIPS4380
  1440. bool
  1441. config SYS_HAS_CPU_BMIPS5000
  1442. bool
  1443. config SYS_HAS_CPU_XLR
  1444. bool
  1445. config SYS_HAS_CPU_XLP
  1446. bool
  1447. #
  1448. # CPU may reorder R->R, R->W, W->R, W->W
  1449. # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
  1450. #
  1451. config WEAK_ORDERING
  1452. bool
  1453. #
  1454. # CPU may reorder reads and writes beyond LL/SC
  1455. # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
  1456. #
  1457. config WEAK_REORDERING_BEYOND_LLSC
  1458. bool
  1459. endmenu
  1460. #
  1461. # These two indicate any level of the MIPS32 and MIPS64 architecture
  1462. #
  1463. config CPU_MIPS32
  1464. bool
  1465. default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
  1466. config CPU_MIPS64
  1467. bool
  1468. default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
  1469. #
  1470. # These two indicate the revision of the architecture, either Release 1 or Release 2
  1471. #
  1472. config CPU_MIPSR1
  1473. bool
  1474. default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
  1475. config CPU_MIPSR2
  1476. bool
  1477. default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
  1478. config SYS_SUPPORTS_32BIT_KERNEL
  1479. bool
  1480. config SYS_SUPPORTS_64BIT_KERNEL
  1481. bool
  1482. config CPU_SUPPORTS_32BIT_KERNEL
  1483. bool
  1484. config CPU_SUPPORTS_64BIT_KERNEL
  1485. bool
  1486. config CPU_SUPPORTS_CPUFREQ
  1487. bool
  1488. config CPU_SUPPORTS_ADDRWINCFG
  1489. bool
  1490. config CPU_SUPPORTS_HUGEPAGES
  1491. bool
  1492. config CPU_SUPPORTS_UNCACHED_ACCELERATED
  1493. bool
  1494. config MIPS_PGD_C0_CONTEXT
  1495. bool
  1496. default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
  1497. #
  1498. # Set to y for ptrace access to watch registers.
  1499. #
  1500. config HARDWARE_WATCHPOINTS
  1501. bool
  1502. default y if CPU_MIPSR1 || CPU_MIPSR2
  1503. menu "Kernel type"
  1504. choice
  1505. prompt "Kernel code model"
  1506. help
  1507. You should only select this option if you have a workload that
  1508. actually benefits from 64-bit processing or if your machine has
  1509. large memory. You will only be presented a single option in this
  1510. menu if your system does not support both 32-bit and 64-bit kernels.
  1511. config 32BIT
  1512. bool "32-bit kernel"
  1513. depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
  1514. select TRAD_SIGNALS
  1515. help
  1516. Select this option if you want to build a 32-bit kernel.
  1517. config 64BIT
  1518. bool "64-bit kernel"
  1519. depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
  1520. select HAVE_SYSCALL_WRAPPERS
  1521. help
  1522. Select this option if you want to build a 64-bit kernel.
  1523. endchoice
  1524. choice
  1525. prompt "Kernel page size"
  1526. default PAGE_SIZE_4KB
  1527. config PAGE_SIZE_4KB
  1528. bool "4kB"
  1529. depends on !CPU_LOONGSON2
  1530. help
  1531. This option select the standard 4kB Linux page size. On some
  1532. R3000-family processors this is the only available page size. Using
  1533. 4kB page size will minimize memory consumption and is therefore
  1534. recommended for low memory systems.
  1535. config PAGE_SIZE_8KB
  1536. bool "8kB"
  1537. depends on CPU_R8000 || CPU_CAVIUM_OCTEON
  1538. help
  1539. Using 8kB page size will result in higher performance kernel at
  1540. the price of higher memory consumption. This option is available
  1541. only on R8000 and cnMIPS processors. Note that you will need a
  1542. suitable Linux distribution to support this.
  1543. config PAGE_SIZE_16KB
  1544. bool "16kB"
  1545. depends on !CPU_R3000 && !CPU_TX39XX
  1546. help
  1547. Using 16kB page size will result in higher performance kernel at
  1548. the price of higher memory consumption. This option is available on
  1549. all non-R3000 family processors. Note that you will need a suitable
  1550. Linux distribution to support this.
  1551. config PAGE_SIZE_32KB
  1552. bool "32kB"
  1553. depends on CPU_CAVIUM_OCTEON
  1554. help
  1555. Using 32kB page size will result in higher performance kernel at
  1556. the price of higher memory consumption. This option is available
  1557. only on cnMIPS cores. Note that you will need a suitable Linux
  1558. distribution to support this.
  1559. config PAGE_SIZE_64KB
  1560. bool "64kB"
  1561. depends on !CPU_R3000 && !CPU_TX39XX
  1562. help
  1563. Using 64kB page size will result in higher performance kernel at
  1564. the price of higher memory consumption. This option is available on
  1565. all non-R3000 family processor. Not that at the time of this
  1566. writing this option is still high experimental.
  1567. endchoice
  1568. config FORCE_MAX_ZONEORDER
  1569. int "Maximum zone order"
  1570. range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
  1571. default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
  1572. range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
  1573. default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
  1574. range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
  1575. default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
  1576. range 11 64
  1577. default "11"
  1578. help
  1579. The kernel memory allocator divides physically contiguous memory
  1580. blocks into "zones", where each zone is a power of two number of
  1581. pages. This option selects the largest power of two that the kernel
  1582. keeps in the memory allocator. If you need to allocate very large
  1583. blocks of physically contiguous memory, then you may need to
  1584. increase this value.
  1585. This config option is actually maximum order plus one. For example,
  1586. a value of 11 means that the largest free memory block is 2^10 pages.
  1587. The page size is not necessarily 4KB. Keep this in mind
  1588. when choosing a value for this option.
  1589. config BOARD_SCACHE
  1590. bool
  1591. config IP22_CPU_SCACHE
  1592. bool
  1593. select BOARD_SCACHE
  1594. #
  1595. # Support for a MIPS32 / MIPS64 style S-caches
  1596. #
  1597. config MIPS_CPU_SCACHE
  1598. bool
  1599. select BOARD_SCACHE
  1600. config R5000_CPU_SCACHE
  1601. bool
  1602. select BOARD_SCACHE
  1603. config RM7000_CPU_SCACHE
  1604. bool
  1605. select BOARD_SCACHE
  1606. config SIBYTE_DMA_PAGEOPS
  1607. bool "Use DMA to clear/copy pages"
  1608. depends on CPU_SB1
  1609. help
  1610. Instead of using the CPU to zero and copy pages, use a Data Mover
  1611. channel. These DMA channels are otherwise unused by the standard
  1612. SiByte Linux port. Seems to give a small performance benefit.
  1613. config CPU_HAS_PREFETCH
  1614. bool
  1615. config CPU_GENERIC_DUMP_TLB
  1616. bool
  1617. default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
  1618. config CPU_R4K_FPU
  1619. bool
  1620. default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
  1621. config CPU_R4K_CACHE_TLB
  1622. bool
  1623. default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
  1624. choice
  1625. prompt "MIPS MT options"
  1626. config MIPS_MT_DISABLED
  1627. bool "Disable multithreading support."
  1628. help
  1629. Use this option if your workload can't take advantage of
  1630. MIPS hardware multithreading support. On systems that don't have
  1631. the option of an MT-enabled processor this option will be the only
  1632. option in this menu.
  1633. config MIPS_MT_SMP
  1634. bool "Use 1 TC on each available VPE for SMP"
  1635. depends on SYS_SUPPORTS_MULTITHREADING
  1636. select CPU_MIPSR2_IRQ_VI
  1637. select CPU_MIPSR2_IRQ_EI
  1638. select MIPS_MT
  1639. select NR_CPUS_DEFAULT_2
  1640. select SMP
  1641. select SYS_SUPPORTS_SCHED_SMT if SMP
  1642. select SYS_SUPPORTS_SMP
  1643. select SMP_UP
  1644. select MIPS_PERF_SHARED_TC_COUNTERS
  1645. help
  1646. This is a kernel model which is known a VSMP but lately has been
  1647. marketesed into SMVP.
  1648. Virtual SMP uses the processor's VPEs to implement virtual
  1649. processors. In currently available configuration of the 34K processor
  1650. this allows for a dual processor. Both processors will share the same
  1651. primary caches; each will obtain the half of the TLB for it's own
  1652. exclusive use. For a layman this model can be described as similar to
  1653. what Intel calls Hyperthreading.
  1654. For further information see http://www.linux-mips.org/wiki/34K#VSMP
  1655. config MIPS_MT_SMTC
  1656. bool "SMTC: Use all TCs on all VPEs for SMP"
  1657. depends on CPU_MIPS32_R2
  1658. #depends on CPU_MIPS64_R2 # once there is hardware ...
  1659. depends on SYS_SUPPORTS_MULTITHREADING
  1660. select CPU_MIPSR2_IRQ_VI
  1661. select CPU_MIPSR2_IRQ_EI
  1662. select MIPS_MT
  1663. select NR_CPUS_DEFAULT_8
  1664. select SMP
  1665. select SYS_SUPPORTS_SMP
  1666. select SMP_UP
  1667. help
  1668. This is a kernel model which is known a SMTC or lately has been
  1669. marketesed into SMVP.
  1670. is presenting the available TC's of the core as processors to Linux.
  1671. On currently available 34K processors this means a Linux system will
  1672. see up to 5 processors. The implementation of the SMTC kernel differs
  1673. significantly from VSMP and cannot efficiently coexist in the same
  1674. kernel binary so the choice between VSMP and SMTC is a compile time
  1675. decision.
  1676. For further information see http://www.linux-mips.org/wiki/34K#SMTC
  1677. endchoice
  1678. config MIPS_MT
  1679. bool
  1680. config SCHED_SMT
  1681. bool "SMT (multithreading) scheduler support"
  1682. depends on SYS_SUPPORTS_SCHED_SMT
  1683. default n
  1684. help
  1685. SMT scheduler support improves the CPU scheduler's decision making
  1686. when dealing with MIPS MT enabled cores at a cost of slightly
  1687. increased overhead in some places. If unsure say N here.
  1688. config SYS_SUPPORTS_SCHED_SMT
  1689. bool
  1690. config SYS_SUPPORTS_MULTITHREADING
  1691. bool
  1692. config MIPS_MT_FPAFF
  1693. bool "Dynamic FPU affinity for FP-intensive threads"
  1694. default y
  1695. depends on MIPS_MT_SMP || MIPS_MT_SMTC
  1696. config MIPS_VPE_LOADER
  1697. bool "VPE loader support."
  1698. depends on SYS_SUPPORTS_MULTITHREADING
  1699. select CPU_MIPSR2_IRQ_VI
  1700. select CPU_MIPSR2_IRQ_EI
  1701. select MIPS_MT
  1702. help
  1703. Includes a loader for loading an elf relocatable object
  1704. onto another VPE and running it.
  1705. config MIPS_MT_SMTC_IM_BACKSTOP
  1706. bool "Use per-TC register bits as backstop for inhibited IM bits"
  1707. depends on MIPS_MT_SMTC
  1708. default n
  1709. help
  1710. To support multiple TC microthreads acting as "CPUs" within
  1711. a VPE, VPE-wide interrupt mask bits must be specially manipulated
  1712. during interrupt handling. To support legacy drivers and interrupt
  1713. controller management code, SMTC has a "backstop" to track and
  1714. if necessary restore the interrupt mask. This has some performance
  1715. impact on interrupt service overhead.
  1716. config MIPS_MT_SMTC_IRQAFF
  1717. bool "Support IRQ affinity API"
  1718. depends on MIPS_MT_SMTC
  1719. default n
  1720. help
  1721. Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
  1722. for SMTC Linux kernel. Requires platform support, of which
  1723. an example can be found in the MIPS kernel i8259 and Malta
  1724. platform code. Adds some overhead to interrupt dispatch, and
  1725. should be used only if you know what you are doing.
  1726. config MIPS_VPE_LOADER_TOM
  1727. bool "Load VPE program into memory hidden from linux"
  1728. depends on MIPS_VPE_LOADER
  1729. default y
  1730. help
  1731. The loader can use memory that is present but has been hidden from
  1732. Linux using the kernel command line option "mem=xxMB". It's up to
  1733. you to ensure the amount you put in the option and the space your
  1734. program requires is less or equal to the amount physically present.
  1735. # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
  1736. config MIPS_VPE_APSP_API
  1737. bool "Enable support for AP/SP API (RTLX)"
  1738. depends on MIPS_VPE_LOADER
  1739. help
  1740. config MIPS_CMP
  1741. bool "MIPS CMP framework support"
  1742. depends on SYS_SUPPORTS_MIPS_CMP
  1743. select SYNC_R4K
  1744. select SYS_SUPPORTS_SMP
  1745. select SYS_SUPPORTS_SCHED_SMT if SMP
  1746. select WEAK_ORDERING
  1747. default n
  1748. help
  1749. This is a placeholder option for the GCMP work. It will need to
  1750. be handled differently...
  1751. config SB1_PASS_1_WORKAROUNDS
  1752. bool
  1753. depends on CPU_SB1_PASS_1
  1754. default y
  1755. config SB1_PASS_2_WORKAROUNDS
  1756. bool
  1757. depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
  1758. default y
  1759. config SB1_PASS_2_1_WORKAROUNDS
  1760. bool
  1761. depends on CPU_SB1 && CPU_SB1_PASS_2
  1762. default y
  1763. config 64BIT_PHYS_ADDR
  1764. bool
  1765. config ARCH_PHYS_ADDR_T_64BIT
  1766. def_bool 64BIT_PHYS_ADDR
  1767. config CPU_HAS_SMARTMIPS
  1768. depends on SYS_SUPPORTS_SMARTMIPS
  1769. bool "Support for the SmartMIPS ASE"
  1770. help
  1771. SmartMIPS is a extension of the MIPS32 architecture aimed at
  1772. increased security at both hardware and software level for
  1773. smartcards. Enabling this option will allow proper use of the
  1774. SmartMIPS instructions by Linux applications. However a kernel with
  1775. this option will not work on a MIPS core without SmartMIPS core. If
  1776. you don't know you probably don't have SmartMIPS and should say N
  1777. here.
  1778. config CPU_HAS_WB
  1779. bool
  1780. config XKS01
  1781. bool
  1782. #
  1783. # Vectored interrupt mode is an R2 feature
  1784. #
  1785. config CPU_MIPSR2_IRQ_VI
  1786. bool
  1787. #
  1788. # Extended interrupt mode is an R2 feature
  1789. #
  1790. config CPU_MIPSR2_IRQ_EI
  1791. bool
  1792. config CPU_HAS_SYNC
  1793. bool
  1794. depends on !CPU_R3000
  1795. default y
  1796. #
  1797. # CPU non-features
  1798. #
  1799. config CPU_DADDI_WORKAROUNDS
  1800. bool
  1801. config CPU_R4000_WORKAROUNDS
  1802. bool
  1803. select CPU_R4400_WORKAROUNDS
  1804. config CPU_R4400_WORKAROUNDS
  1805. bool
  1806. #
  1807. # - Highmem only makes sense for the 32-bit kernel.
  1808. # - The current highmem code will only work properly on physically indexed
  1809. # caches such as R3000, SB1, R7000 or those that look like they're virtually
  1810. # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
  1811. # moment we protect the user and offer the highmem option only on machines
  1812. # where it's known to be safe. This will not offer highmem on a few systems
  1813. # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
  1814. # indexed CPUs but we're playing safe.
  1815. # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
  1816. # know they might have memory configurations that could make use of highmem
  1817. # support.
  1818. #
  1819. config HIGHMEM
  1820. bool "High Memory Support"
  1821. depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
  1822. config CPU_SUPPORTS_HIGHMEM
  1823. bool
  1824. config SYS_SUPPORTS_HIGHMEM
  1825. bool
  1826. config SYS_SUPPORTS_SMARTMIPS
  1827. bool
  1828. config ARCH_FLATMEM_ENABLE
  1829. def_bool y
  1830. depends on !NUMA && !CPU_LOONGSON2
  1831. config ARCH_DISCONTIGMEM_ENABLE
  1832. bool
  1833. default y if SGI_IP27
  1834. help
  1835. Say Y to support efficient handling of discontiguous physical memory,
  1836. for architectures which are either NUMA (Non-Uniform Memory Access)
  1837. or have huge holes in the physical address space for other reasons.
  1838. See <file:Documentation/vm/numa> for more.
  1839. config ARCH_SPARSEMEM_ENABLE
  1840. bool
  1841. select SPARSEMEM_STATIC
  1842. config NUMA
  1843. bool "NUMA Support"
  1844. depends on SYS_SUPPORTS_NUMA
  1845. help
  1846. Say Y to compile the kernel to support NUMA (Non-Uniform Memory
  1847. Access). This option improves performance on systems with more
  1848. than two nodes; on two node systems it is generally better to
  1849. leave it disabled; on single node systems disable this option
  1850. disabled.
  1851. config SYS_SUPPORTS_NUMA
  1852. bool
  1853. config NODES_SHIFT
  1854. int
  1855. default "6"
  1856. depends on NEED_MULTIPLE_NODES
  1857. config HW_PERF_EVENTS
  1858. bool "Enable hardware performance counter support for perf events"
  1859. depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
  1860. default y
  1861. help
  1862. Enable hardware performance counter support for perf events. If
  1863. disabled, perf events will use software events only.
  1864. source "mm/Kconfig"
  1865. config SMP
  1866. bool "Multi-Processing support"
  1867. depends on SYS_SUPPORTS_SMP
  1868. select USE_GENERIC_SMP_HELPERS
  1869. help
  1870. This enables support for systems with more than one CPU. If you have
  1871. a system with only one CPU, like most personal computers, say N. If
  1872. you have a system with more than one CPU, say Y.
  1873. If you say N here, the kernel will run on single and multiprocessor
  1874. machines, but will use only one CPU of a multiprocessor machine. If
  1875. you say Y here, the kernel will run on many, but not all,
  1876. singleprocessor machines. On a singleprocessor machine, the kernel
  1877. will run faster if you say N here.
  1878. People using multiprocessor machines who say Y here should also say
  1879. Y to "Enhanced Real Time Clock Support", below.
  1880. See also the SMP-HOWTO available at
  1881. <http://www.tldp.org/docs.html#howto>.
  1882. If you don't know what to do here, say N.
  1883. config SMP_UP
  1884. bool
  1885. config SYS_SUPPORTS_MIPS_CMP
  1886. bool
  1887. config SYS_SUPPORTS_SMP
  1888. bool
  1889. config NR_CPUS_DEFAULT_1
  1890. bool
  1891. config NR_CPUS_DEFAULT_2
  1892. bool
  1893. config NR_CPUS_DEFAULT_4
  1894. bool
  1895. config NR_CPUS_DEFAULT_8
  1896. bool
  1897. config NR_CPUS_DEFAULT_16
  1898. bool
  1899. config NR_CPUS_DEFAULT_32
  1900. bool
  1901. config NR_CPUS_DEFAULT_64
  1902. bool
  1903. config NR_CPUS
  1904. int "Maximum number of CPUs (2-64)"
  1905. range 1 64 if NR_CPUS_DEFAULT_1
  1906. depends on SMP
  1907. default "1" if NR_CPUS_DEFAULT_1
  1908. default "2" if NR_CPUS_DEFAULT_2
  1909. default "4" if NR_CPUS_DEFAULT_4
  1910. default "8" if NR_CPUS_DEFAULT_8
  1911. default "16" if NR_CPUS_DEFAULT_16
  1912. default "32" if NR_CPUS_DEFAULT_32
  1913. default "64" if NR_CPUS_DEFAULT_64
  1914. help
  1915. This allows you to specify the maximum number of CPUs which this
  1916. kernel will support. The maximum supported value is 32 for 32-bit
  1917. kernel and 64 for 64-bit kernels; the minimum value which makes
  1918. sense is 1 for Qemu (useful only for kernel debugging purposes)
  1919. and 2 for all others.
  1920. This is purely to save memory - each supported CPU adds
  1921. approximately eight kilobytes to the kernel image. For best
  1922. performance should round up your number of processors to the next
  1923. power of two.
  1924. config MIPS_PERF_SHARED_TC_COUNTERS
  1925. bool
  1926. #
  1927. # Timer Interrupt Frequency Configuration
  1928. #
  1929. choice
  1930. prompt "Timer frequency"
  1931. default HZ_250
  1932. help
  1933. Allows the configuration of the timer frequency.
  1934. config HZ_48
  1935. bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
  1936. config HZ_100
  1937. bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
  1938. config HZ_128
  1939. bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
  1940. config HZ_250
  1941. bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
  1942. config HZ_256
  1943. bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
  1944. config HZ_1000
  1945. bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
  1946. config HZ_1024
  1947. bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
  1948. endchoice
  1949. config SYS_SUPPORTS_48HZ
  1950. bool
  1951. config SYS_SUPPORTS_100HZ
  1952. bool
  1953. config SYS_SUPPORTS_128HZ
  1954. bool
  1955. config SYS_SUPPORTS_250HZ
  1956. bool
  1957. config SYS_SUPPORTS_256HZ
  1958. bool
  1959. config SYS_SUPPORTS_1000HZ
  1960. bool
  1961. config SYS_SUPPORTS_1024HZ
  1962. bool
  1963. config SYS_SUPPORTS_ARBIT_HZ
  1964. bool
  1965. default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
  1966. !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
  1967. !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
  1968. !SYS_SUPPORTS_1024HZ
  1969. config HZ
  1970. int
  1971. default 48 if HZ_48
  1972. default 100 if HZ_100
  1973. default 128 if HZ_128
  1974. default 250 if HZ_250
  1975. default 256 if HZ_256
  1976. default 1000 if HZ_1000
  1977. default 1024 if HZ_1024
  1978. source "kernel/Kconfig.preempt"
  1979. config KEXEC
  1980. bool "Kexec system call"
  1981. help
  1982. kexec is a system call that implements the ability to shutdown your
  1983. current kernel, and to start another kernel. It is like a reboot
  1984. but it is independent of the system firmware. And like a reboot
  1985. you can start any kernel with it, not just Linux.
  1986. The name comes from the similarity to the exec system call.
  1987. It is an ongoing process to be certain the hardware in a machine
  1988. is properly shutdown, so do not be surprised if this code does not
  1989. initially work for you. It may help to enable device hotplugging
  1990. support. As of this writing the exact hardware interface is
  1991. strongly in flux, so no good recommendation can be made.
  1992. config CRASH_DUMP
  1993. bool "Kernel crash dumps"
  1994. help
  1995. Generate crash dump after being started by kexec.
  1996. This should be normally only set in special crash dump kernels
  1997. which are loaded in the main kernel with kexec-tools into
  1998. a specially reserved region and then later executed after
  1999. a crash by kdump/kexec. The crash dump kernel must be compiled
  2000. to a memory address not used by the main kernel or firmware using
  2001. PHYSICAL_START.
  2002. config PHYSICAL_START
  2003. hex "Physical address where the kernel is loaded"
  2004. default "0xffffffff84000000" if 64BIT
  2005. default "0x84000000" if 32BIT
  2006. depends on CRASH_DUMP
  2007. help
  2008. This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
  2009. If you plan to use kernel for capturing the crash dump change
  2010. this value to start of the reserved region (the "X" value as
  2011. specified in the "crashkernel=YM@XM" command line boot parameter
  2012. passed to the panic-ed kernel).
  2013. config SECCOMP
  2014. bool "Enable seccomp to safely compute untrusted bytecode"
  2015. depends on PROC_FS
  2016. default y
  2017. help
  2018. This kernel feature is useful for number crunching applications
  2019. that may need to compute untrusted bytecode during their
  2020. execution. By using pipes or other transports made available to
  2021. the process as file descriptors supporting the read/write
  2022. syscalls, it's possible to isolate those applications in
  2023. their own address space using seccomp. Once seccomp is
  2024. enabled via /proc/<pid>/seccomp, it cannot be disabled
  2025. and the task is only allowed to execute a few safe syscalls
  2026. defined by each seccomp mode.
  2027. If unsure, say Y. Only embedded should say N here.
  2028. config USE_OF
  2029. bool
  2030. select OF
  2031. select OF_EARLY_FLATTREE
  2032. select IRQ_DOMAIN
  2033. endmenu
  2034. config LOCKDEP_SUPPORT
  2035. bool
  2036. default y
  2037. config STACKTRACE_SUPPORT
  2038. bool
  2039. default y
  2040. source "init/Kconfig"
  2041. source "kernel/Kconfig.freezer"
  2042. menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
  2043. config HW_HAS_EISA
  2044. bool
  2045. config HW_HAS_PCI
  2046. bool
  2047. config PCI
  2048. bool "Support for PCI controller"
  2049. depends on HW_HAS_PCI
  2050. select PCI_DOMAINS
  2051. select GENERIC_PCI_IOMAP
  2052. select NO_GENERIC_PCI_IOPORT_MAP
  2053. help
  2054. Find out whether you have a PCI motherboard. PCI is the name of a
  2055. bus system, i.e. the way the CPU talks to the other stuff inside
  2056. your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
  2057. say Y, otherwise N.
  2058. config PCI_DOMAINS
  2059. bool
  2060. source "drivers/pci/Kconfig"
  2061. source "drivers/pci/pcie/Kconfig"
  2062. #
  2063. # ISA support is now enabled via select. Too many systems still have the one
  2064. # or other ISA chip on the board that users don't know about so don't expect
  2065. # users to choose the right thing ...
  2066. #
  2067. config ISA
  2068. bool
  2069. config EISA
  2070. bool "EISA support"
  2071. depends on HW_HAS_EISA
  2072. select ISA
  2073. select GENERIC_ISA_DMA
  2074. ---help---
  2075. The Extended Industry Standard Architecture (EISA) bus was
  2076. developed as an open alternative to the IBM MicroChannel bus.
  2077. The EISA bus provided some of the features of the IBM MicroChannel
  2078. bus while maintaining backward compatibility with cards made for
  2079. the older ISA bus. The EISA bus saw limited use between 1988 and
  2080. 1995 when it was made obsolete by the PCI bus.
  2081. Say Y here if you are building a kernel for an EISA-based machine.
  2082. Otherwise, say N.
  2083. source "drivers/eisa/Kconfig"
  2084. config TC
  2085. bool "TURBOchannel support"
  2086. depends on MACH_DECSTATION
  2087. help
  2088. TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
  2089. processors. TURBOchannel programming specifications are available
  2090. at:
  2091. <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
  2092. and:
  2093. <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
  2094. Linux driver support status is documented at:
  2095. <http://www.linux-mips.org/wiki/DECstation>
  2096. config MMU
  2097. bool
  2098. default y
  2099. config I8253
  2100. bool
  2101. select CLKSRC_I8253
  2102. select CLKEVT_I8253
  2103. select MIPS_EXTERNAL_TIMER
  2104. config ZONE_DMA32
  2105. bool
  2106. source "drivers/pcmcia/Kconfig"
  2107. source "drivers/pci/hotplug/Kconfig"
  2108. config RAPIDIO
  2109. bool "RapidIO support"
  2110. depends on PCI
  2111. default n
  2112. help
  2113. If you say Y here, the kernel will include drivers and
  2114. infrastructure code to support RapidIO interconnect devices.
  2115. source "drivers/rapidio/Kconfig"
  2116. endmenu
  2117. menu "Executable file formats"
  2118. source "fs/Kconfig.binfmt"
  2119. config TRAD_SIGNALS
  2120. bool
  2121. config MIPS32_COMPAT
  2122. bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
  2123. depends on 64BIT
  2124. help
  2125. Select this option if you want Linux/MIPS 32-bit binary
  2126. compatibility. Since all software available for Linux/MIPS is
  2127. currently 32-bit you should say Y here.
  2128. config COMPAT
  2129. bool
  2130. depends on MIPS32_COMPAT
  2131. select ARCH_WANT_OLD_COMPAT_IPC
  2132. default y
  2133. config SYSVIPC_COMPAT
  2134. bool
  2135. depends on COMPAT && SYSVIPC
  2136. default y
  2137. config MIPS32_O32
  2138. bool "Kernel support for o32 binaries"
  2139. depends on MIPS32_COMPAT
  2140. help
  2141. Select this option if you want to run o32 binaries. These are pure
  2142. 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
  2143. existing binaries are in this format.
  2144. If unsure, say Y.
  2145. config MIPS32_N32
  2146. bool "Kernel support for n32 binaries"
  2147. depends on MIPS32_COMPAT
  2148. help
  2149. Select this option if you want to run n32 binaries. These are
  2150. 64-bit binaries using 32-bit quantities for addressing and certain
  2151. data that would normally be 64-bit. They are used in special
  2152. cases.
  2153. If unsure, say N.
  2154. config BINFMT_ELF32
  2155. bool
  2156. default y if MIPS32_O32 || MIPS32_N32
  2157. endmenu
  2158. menu "Power management options"
  2159. config ARCH_HIBERNATION_POSSIBLE
  2160. def_bool y
  2161. depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
  2162. config ARCH_SUSPEND_POSSIBLE
  2163. def_bool y
  2164. depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
  2165. source "kernel/power/Kconfig"
  2166. endmenu
  2167. source "arch/mips/kernel/cpufreq/Kconfig"
  2168. source "net/Kconfig"
  2169. source "drivers/Kconfig"
  2170. source "drivers/firmware/Kconfig"
  2171. source "fs/Kconfig"
  2172. source "arch/mips/Kconfig.debug"
  2173. source "security/Kconfig"
  2174. source "crypto/Kconfig"
  2175. source "lib/Kconfig"