Kconfig 72 KB

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  1. config MIPS
  2. bool
  3. default y
  4. select ARCH_MIGHT_HAVE_PC_PARPORT
  5. select ARCH_MIGHT_HAVE_PC_SERIO
  6. select HAVE_CONTEXT_TRACKING
  7. select HAVE_GENERIC_DMA_COHERENT
  8. select HAVE_IDE
  9. select HAVE_OPROFILE
  10. select HAVE_PERF_EVENTS
  11. select PERF_USE_VMALLOC
  12. select HAVE_ARCH_KGDB
  13. select HAVE_ARCH_SECCOMP_FILTER
  14. select HAVE_ARCH_TRACEHOOK
  15. select HAVE_BPF_JIT if !CPU_MICROMIPS
  16. select ARCH_HAVE_CUSTOM_GPIO_H
  17. select HAVE_FUNCTION_TRACER
  18. select HAVE_DYNAMIC_FTRACE
  19. select HAVE_FTRACE_MCOUNT_RECORD
  20. select HAVE_C_RECORDMCOUNT
  21. select HAVE_FUNCTION_GRAPH_TRACER
  22. select HAVE_KPROBES
  23. select HAVE_KRETPROBES
  24. select HAVE_SYSCALL_TRACEPOINTS
  25. select HAVE_DEBUG_KMEMLEAK
  26. select HAVE_SYSCALL_TRACEPOINTS
  27. select ARCH_HAS_ELF_RANDOMIZE
  28. select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
  29. select RTC_LIB if !MACH_LOONGSON64
  30. select GENERIC_ATOMIC64 if !64BIT
  31. select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
  32. select HAVE_DMA_ATTRS
  33. select HAVE_DMA_CONTIGUOUS
  34. select HAVE_DMA_API_DEBUG
  35. select GENERIC_IRQ_PROBE
  36. select GENERIC_IRQ_SHOW
  37. select GENERIC_PCI_IOMAP
  38. select HAVE_ARCH_JUMP_LABEL
  39. select ARCH_WANT_IPC_PARSE_VERSION
  40. select IRQ_FORCED_THREADING
  41. select HAVE_MEMBLOCK
  42. select HAVE_MEMBLOCK_NODE_MAP
  43. select ARCH_DISCARD_MEMBLOCK
  44. select GENERIC_SMP_IDLE_THREAD
  45. select BUILDTIME_EXTABLE_SORT
  46. select GENERIC_CLOCKEVENTS
  47. select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
  48. select GENERIC_CMOS_UPDATE
  49. select HAVE_MOD_ARCH_SPECIFIC
  50. select VIRT_TO_BUS
  51. select MODULES_USE_ELF_REL if MODULES
  52. select MODULES_USE_ELF_RELA if MODULES && 64BIT
  53. select CLONE_BACKWARDS
  54. select HAVE_DEBUG_STACKOVERFLOW
  55. select HAVE_CC_STACKPROTECTOR
  56. select CPU_PM if CPU_IDLE
  57. select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
  58. select ARCH_BINFMT_ELF_STATE
  59. select SYSCTL_EXCEPTION_TRACE
  60. select HAVE_VIRT_CPU_ACCOUNTING_GEN
  61. select HAVE_IRQ_TIME_ACCOUNTING
  62. menu "Machine selection"
  63. choice
  64. prompt "System type"
  65. default SGI_IP22
  66. config MIPS_ALCHEMY
  67. bool "Alchemy processor based machines"
  68. select ARCH_PHYS_ADDR_T_64BIT
  69. select CEVT_R4K
  70. select CSRC_R4K
  71. select IRQ_MIPS_CPU
  72. select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is
  73. select SYS_HAS_CPU_MIPS32_R1
  74. select SYS_SUPPORTS_32BIT_KERNEL
  75. select SYS_SUPPORTS_APM_EMULATION
  76. select ARCH_REQUIRE_GPIOLIB
  77. select SYS_SUPPORTS_ZBOOT
  78. select COMMON_CLK
  79. config AR7
  80. bool "Texas Instruments AR7"
  81. select BOOT_ELF32
  82. select DMA_NONCOHERENT
  83. select CEVT_R4K
  84. select CSRC_R4K
  85. select IRQ_MIPS_CPU
  86. select NO_EXCEPT_FILL
  87. select SWAP_IO_SPACE
  88. select SYS_HAS_CPU_MIPS32_R1
  89. select SYS_HAS_EARLY_PRINTK
  90. select SYS_SUPPORTS_32BIT_KERNEL
  91. select SYS_SUPPORTS_LITTLE_ENDIAN
  92. select SYS_SUPPORTS_MIPS16
  93. select SYS_SUPPORTS_ZBOOT_UART16550
  94. select ARCH_REQUIRE_GPIOLIB
  95. select VLYNQ
  96. select HAVE_CLK
  97. help
  98. Support for the Texas Instruments AR7 System-on-a-Chip
  99. family: TNETD7100, 7200 and 7300.
  100. config ATH25
  101. bool "Atheros AR231x/AR531x SoC support"
  102. select CEVT_R4K
  103. select CSRC_R4K
  104. select DMA_NONCOHERENT
  105. select IRQ_MIPS_CPU
  106. select IRQ_DOMAIN
  107. select SYS_HAS_CPU_MIPS32_R1
  108. select SYS_SUPPORTS_BIG_ENDIAN
  109. select SYS_SUPPORTS_32BIT_KERNEL
  110. select SYS_HAS_EARLY_PRINTK
  111. help
  112. Support for Atheros AR231x and Atheros AR531x based boards
  113. config ATH79
  114. bool "Atheros AR71XX/AR724X/AR913X based boards"
  115. select ARCH_REQUIRE_GPIOLIB
  116. select BOOT_RAW
  117. select CEVT_R4K
  118. select CSRC_R4K
  119. select DMA_NONCOHERENT
  120. select HAVE_CLK
  121. select COMMON_CLK
  122. select CLKDEV_LOOKUP
  123. select IRQ_MIPS_CPU
  124. select MIPS_MACHINE
  125. select SYS_HAS_CPU_MIPS32_R2
  126. select SYS_HAS_EARLY_PRINTK
  127. select SYS_SUPPORTS_32BIT_KERNEL
  128. select SYS_SUPPORTS_BIG_ENDIAN
  129. select SYS_SUPPORTS_MIPS16
  130. select SYS_SUPPORTS_ZBOOT
  131. select USE_OF
  132. help
  133. Support for the Atheros AR71XX/AR724X/AR913X SoCs.
  134. config BMIPS_GENERIC
  135. bool "Broadcom Generic BMIPS kernel"
  136. select BOOT_RAW
  137. select NO_EXCEPT_FILL
  138. select USE_OF
  139. select CEVT_R4K
  140. select CSRC_R4K
  141. select SYNC_R4K
  142. select COMMON_CLK
  143. select BCM7038_L1_IRQ
  144. select BCM7120_L2_IRQ
  145. select BRCMSTB_L2_IRQ
  146. select IRQ_MIPS_CPU
  147. select RAW_IRQ_ACCESSORS
  148. select DMA_NONCOHERENT
  149. select SYS_SUPPORTS_32BIT_KERNEL
  150. select SYS_SUPPORTS_LITTLE_ENDIAN
  151. select SYS_SUPPORTS_BIG_ENDIAN
  152. select SYS_SUPPORTS_HIGHMEM
  153. select SYS_HAS_CPU_BMIPS32_3300
  154. select SYS_HAS_CPU_BMIPS4350
  155. select SYS_HAS_CPU_BMIPS4380
  156. select SYS_HAS_CPU_BMIPS5000
  157. select SWAP_IO_SPACE
  158. select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
  159. select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
  160. select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
  161. select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
  162. help
  163. Build a generic DT-based kernel image that boots on select
  164. BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
  165. box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
  166. must be set appropriately for your board.
  167. config BCM47XX
  168. bool "Broadcom BCM47XX based boards"
  169. select ARCH_WANT_OPTIONAL_GPIOLIB
  170. select BOOT_RAW
  171. select CEVT_R4K
  172. select CSRC_R4K
  173. select DMA_NONCOHERENT
  174. select HW_HAS_PCI
  175. select IRQ_MIPS_CPU
  176. select SYS_HAS_CPU_MIPS32_R1
  177. select NO_EXCEPT_FILL
  178. select SYS_SUPPORTS_32BIT_KERNEL
  179. select SYS_SUPPORTS_LITTLE_ENDIAN
  180. select SYS_SUPPORTS_MIPS16
  181. select SYS_HAS_EARLY_PRINTK
  182. select USE_GENERIC_EARLY_PRINTK_8250
  183. select GPIOLIB
  184. select LEDS_GPIO_REGISTER
  185. select BCM47XX_NVRAM
  186. help
  187. Support for BCM47XX based boards
  188. config BCM63XX
  189. bool "Broadcom BCM63XX based boards"
  190. select BOOT_RAW
  191. select CEVT_R4K
  192. select CSRC_R4K
  193. select SYNC_R4K
  194. select DMA_NONCOHERENT
  195. select IRQ_MIPS_CPU
  196. select SYS_SUPPORTS_32BIT_KERNEL
  197. select SYS_SUPPORTS_BIG_ENDIAN
  198. select SYS_HAS_EARLY_PRINTK
  199. select SWAP_IO_SPACE
  200. select ARCH_REQUIRE_GPIOLIB
  201. select HAVE_CLK
  202. select MIPS_L1_CACHE_SHIFT_4
  203. help
  204. Support for BCM63XX based boards
  205. config MIPS_COBALT
  206. bool "Cobalt Server"
  207. select CEVT_R4K
  208. select CSRC_R4K
  209. select CEVT_GT641XX
  210. select DMA_NONCOHERENT
  211. select HW_HAS_PCI
  212. select I8253
  213. select I8259
  214. select IRQ_MIPS_CPU
  215. select IRQ_GT641XX
  216. select PCI_GT64XXX_PCI0
  217. select PCI
  218. select SYS_HAS_CPU_NEVADA
  219. select SYS_HAS_EARLY_PRINTK
  220. select SYS_SUPPORTS_32BIT_KERNEL
  221. select SYS_SUPPORTS_64BIT_KERNEL
  222. select SYS_SUPPORTS_LITTLE_ENDIAN
  223. select USE_GENERIC_EARLY_PRINTK_8250
  224. config MACH_DECSTATION
  225. bool "DECstations"
  226. select BOOT_ELF32
  227. select CEVT_DS1287
  228. select CEVT_R4K if CPU_R4X00
  229. select CSRC_IOASIC
  230. select CSRC_R4K if CPU_R4X00
  231. select CPU_DADDI_WORKAROUNDS if 64BIT
  232. select CPU_R4000_WORKAROUNDS if 64BIT
  233. select CPU_R4400_WORKAROUNDS if 64BIT
  234. select DMA_NONCOHERENT
  235. select NO_IOPORT_MAP
  236. select IRQ_MIPS_CPU
  237. select SYS_HAS_CPU_R3000
  238. select SYS_HAS_CPU_R4X00
  239. select SYS_SUPPORTS_32BIT_KERNEL
  240. select SYS_SUPPORTS_64BIT_KERNEL
  241. select SYS_SUPPORTS_LITTLE_ENDIAN
  242. select SYS_SUPPORTS_128HZ
  243. select SYS_SUPPORTS_256HZ
  244. select SYS_SUPPORTS_1024HZ
  245. select MIPS_L1_CACHE_SHIFT_4
  246. help
  247. This enables support for DEC's MIPS based workstations. For details
  248. see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
  249. DECstation porting pages on <http://decstation.unix-ag.org/>.
  250. If you have one of the following DECstation Models you definitely
  251. want to choose R4xx0 for the CPU Type:
  252. DECstation 5000/50
  253. DECstation 5000/150
  254. DECstation 5000/260
  255. DECsystem 5900/260
  256. otherwise choose R3000.
  257. config MACH_JAZZ
  258. bool "Jazz family of machines"
  259. select FW_ARC
  260. select FW_ARC32
  261. select ARCH_MAY_HAVE_PC_FDC
  262. select CEVT_R4K
  263. select CSRC_R4K
  264. select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
  265. select GENERIC_ISA_DMA
  266. select HAVE_PCSPKR_PLATFORM
  267. select IRQ_MIPS_CPU
  268. select I8253
  269. select I8259
  270. select ISA
  271. select SYS_HAS_CPU_R4X00
  272. select SYS_SUPPORTS_32BIT_KERNEL
  273. select SYS_SUPPORTS_64BIT_KERNEL
  274. select SYS_SUPPORTS_100HZ
  275. help
  276. This a family of machines based on the MIPS R4030 chipset which was
  277. used by several vendors to build RISC/os and Windows NT workstations.
  278. Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
  279. Olivetti M700-10 workstations.
  280. config MACH_INGENIC
  281. bool "Ingenic SoC based machines"
  282. select SYS_SUPPORTS_32BIT_KERNEL
  283. select SYS_SUPPORTS_LITTLE_ENDIAN
  284. select SYS_SUPPORTS_ZBOOT_UART16550
  285. select DMA_NONCOHERENT
  286. select IRQ_MIPS_CPU
  287. select ARCH_REQUIRE_GPIOLIB
  288. select COMMON_CLK
  289. select GENERIC_IRQ_CHIP
  290. select BUILTIN_DTB
  291. select USE_OF
  292. select LIBFDT
  293. config LANTIQ
  294. bool "Lantiq based platforms"
  295. select DMA_NONCOHERENT
  296. select IRQ_MIPS_CPU
  297. select CEVT_R4K
  298. select CSRC_R4K
  299. select SYS_HAS_CPU_MIPS32_R1
  300. select SYS_HAS_CPU_MIPS32_R2
  301. select SYS_SUPPORTS_BIG_ENDIAN
  302. select SYS_SUPPORTS_32BIT_KERNEL
  303. select SYS_SUPPORTS_MIPS16
  304. select SYS_SUPPORTS_MULTITHREADING
  305. select SYS_HAS_EARLY_PRINTK
  306. select ARCH_REQUIRE_GPIOLIB
  307. select SWAP_IO_SPACE
  308. select BOOT_RAW
  309. select HAVE_MACH_CLKDEV
  310. select CLKDEV_LOOKUP
  311. select USE_OF
  312. select PINCTRL
  313. select PINCTRL_LANTIQ
  314. select ARCH_HAS_RESET_CONTROLLER
  315. select RESET_CONTROLLER
  316. config LASAT
  317. bool "LASAT Networks platforms"
  318. select CEVT_R4K
  319. select CRC32
  320. select CSRC_R4K
  321. select DMA_NONCOHERENT
  322. select SYS_HAS_EARLY_PRINTK
  323. select HW_HAS_PCI
  324. select IRQ_MIPS_CPU
  325. select PCI_GT64XXX_PCI0
  326. select MIPS_NILE4
  327. select R5000_CPU_SCACHE
  328. select SYS_HAS_CPU_R5000
  329. select SYS_SUPPORTS_32BIT_KERNEL
  330. select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
  331. select SYS_SUPPORTS_LITTLE_ENDIAN
  332. config MACH_LOONGSON32
  333. bool "Loongson-1 family of machines"
  334. select SYS_SUPPORTS_ZBOOT
  335. help
  336. This enables support for the Loongson-1 family of machines.
  337. Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
  338. the Institute of Computing Technology (ICT), Chinese Academy of
  339. Sciences (CAS).
  340. config MACH_LOONGSON64
  341. bool "Loongson-2/3 family of machines"
  342. select SYS_SUPPORTS_ZBOOT
  343. help
  344. This enables the support of Loongson-2/3 family of machines.
  345. Loongson-2 is a family of single-core CPUs and Loongson-3 is a
  346. family of multi-core CPUs. They are both 64-bit general-purpose
  347. MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute
  348. of Computing Technology (ICT), Chinese Academy of Sciences (CAS)
  349. in the People's Republic of China. The chief architect is Professor
  350. Weiwu Hu.
  351. config MACH_PISTACHIO
  352. bool "IMG Pistachio SoC based boards"
  353. select ARCH_REQUIRE_GPIOLIB
  354. select BOOT_ELF32
  355. select BOOT_RAW
  356. select CEVT_R4K
  357. select CLKSRC_MIPS_GIC
  358. select COMMON_CLK
  359. select CSRC_R4K
  360. select DMA_MAYBE_COHERENT
  361. select IRQ_MIPS_CPU
  362. select LIBFDT
  363. select MFD_SYSCON
  364. select MIPS_CPU_SCACHE
  365. select MIPS_GIC
  366. select PINCTRL
  367. select REGULATOR
  368. select SYS_HAS_CPU_MIPS32_R2
  369. select SYS_SUPPORTS_32BIT_KERNEL
  370. select SYS_SUPPORTS_LITTLE_ENDIAN
  371. select SYS_SUPPORTS_MIPS_CPS
  372. select SYS_SUPPORTS_MULTITHREADING
  373. select SYS_SUPPORTS_ZBOOT
  374. select SYS_HAS_EARLY_PRINTK
  375. select USE_GENERIC_EARLY_PRINTK_8250
  376. select USE_OF
  377. help
  378. This enables support for the IMG Pistachio SoC platform.
  379. config MIPS_MALTA
  380. bool "MIPS Malta board"
  381. select ARCH_MAY_HAVE_PC_FDC
  382. select BOOT_ELF32
  383. select BOOT_RAW
  384. select BUILTIN_DTB
  385. select CEVT_R4K
  386. select CSRC_R4K
  387. select CLKSRC_MIPS_GIC
  388. select DMA_MAYBE_COHERENT
  389. select GENERIC_ISA_DMA
  390. select HAVE_PCSPKR_PLATFORM
  391. select IRQ_MIPS_CPU
  392. select MIPS_GIC
  393. select HW_HAS_PCI
  394. select I8253
  395. select I8259
  396. select MIPS_BONITO64
  397. select MIPS_CPU_SCACHE
  398. select MIPS_L1_CACHE_SHIFT_6
  399. select PCI_GT64XXX_PCI0
  400. select MIPS_MSC
  401. select SWAP_IO_SPACE
  402. select SYS_HAS_CPU_MIPS32_R1
  403. select SYS_HAS_CPU_MIPS32_R2
  404. select SYS_HAS_CPU_MIPS32_R3_5
  405. select SYS_HAS_CPU_MIPS32_R5
  406. select SYS_HAS_CPU_MIPS32_R6
  407. select SYS_HAS_CPU_MIPS64_R1
  408. select SYS_HAS_CPU_MIPS64_R2
  409. select SYS_HAS_CPU_MIPS64_R6
  410. select SYS_HAS_CPU_NEVADA
  411. select SYS_HAS_CPU_RM7000
  412. select SYS_SUPPORTS_32BIT_KERNEL
  413. select SYS_SUPPORTS_64BIT_KERNEL
  414. select SYS_SUPPORTS_BIG_ENDIAN
  415. select SYS_SUPPORTS_HIGHMEM
  416. select SYS_SUPPORTS_LITTLE_ENDIAN
  417. select SYS_SUPPORTS_MICROMIPS
  418. select SYS_SUPPORTS_MIPS_CMP
  419. select SYS_SUPPORTS_MIPS_CPS
  420. select SYS_SUPPORTS_MIPS16
  421. select SYS_SUPPORTS_MULTITHREADING
  422. select SYS_SUPPORTS_SMARTMIPS
  423. select SYS_SUPPORTS_ZBOOT
  424. select USE_OF
  425. select ZONE_DMA32 if 64BIT
  426. help
  427. This enables support for the MIPS Technologies Malta evaluation
  428. board.
  429. config MIPS_SEAD3
  430. bool "MIPS SEAD3 board"
  431. select BOOT_ELF32
  432. select BOOT_RAW
  433. select BUILTIN_DTB
  434. select CEVT_R4K
  435. select CSRC_R4K
  436. select CLKSRC_MIPS_GIC
  437. select CPU_MIPSR2_IRQ_VI
  438. select CPU_MIPSR2_IRQ_EI
  439. select DMA_NONCOHERENT
  440. select IRQ_MIPS_CPU
  441. select MIPS_GIC
  442. select LIBFDT
  443. select MIPS_MSC
  444. select SYS_HAS_CPU_MIPS32_R1
  445. select SYS_HAS_CPU_MIPS32_R2
  446. select SYS_HAS_CPU_MIPS64_R1
  447. select SYS_HAS_EARLY_PRINTK
  448. select SYS_SUPPORTS_32BIT_KERNEL
  449. select SYS_SUPPORTS_64BIT_KERNEL
  450. select SYS_SUPPORTS_BIG_ENDIAN
  451. select SYS_SUPPORTS_LITTLE_ENDIAN
  452. select SYS_SUPPORTS_SMARTMIPS
  453. select SYS_SUPPORTS_MICROMIPS
  454. select SYS_SUPPORTS_MIPS16
  455. select USB_EHCI_BIG_ENDIAN_DESC
  456. select USB_EHCI_BIG_ENDIAN_MMIO
  457. select USE_OF
  458. help
  459. This enables support for the MIPS Technologies SEAD3 evaluation
  460. board.
  461. config NEC_MARKEINS
  462. bool "NEC EMMA2RH Mark-eins board"
  463. select SOC_EMMA2RH
  464. select HW_HAS_PCI
  465. help
  466. This enables support for the NEC Electronics Mark-eins boards.
  467. config MACH_VR41XX
  468. bool "NEC VR4100 series based machines"
  469. select CEVT_R4K
  470. select CSRC_R4K
  471. select SYS_HAS_CPU_VR41XX
  472. select SYS_SUPPORTS_MIPS16
  473. select ARCH_REQUIRE_GPIOLIB
  474. config NXP_STB220
  475. bool "NXP STB220 board"
  476. select SOC_PNX833X
  477. help
  478. Support for NXP Semiconductors STB220 Development Board.
  479. config NXP_STB225
  480. bool "NXP 225 board"
  481. select SOC_PNX833X
  482. select SOC_PNX8335
  483. help
  484. Support for NXP Semiconductors STB225 Development Board.
  485. config PMC_MSP
  486. bool "PMC-Sierra MSP chipsets"
  487. select CEVT_R4K
  488. select CSRC_R4K
  489. select DMA_NONCOHERENT
  490. select SWAP_IO_SPACE
  491. select NO_EXCEPT_FILL
  492. select BOOT_RAW
  493. select SYS_HAS_CPU_MIPS32_R1
  494. select SYS_HAS_CPU_MIPS32_R2
  495. select SYS_SUPPORTS_32BIT_KERNEL
  496. select SYS_SUPPORTS_BIG_ENDIAN
  497. select SYS_SUPPORTS_MIPS16
  498. select IRQ_MIPS_CPU
  499. select SERIAL_8250
  500. select SERIAL_8250_CONSOLE
  501. select USB_EHCI_BIG_ENDIAN_MMIO
  502. select USB_EHCI_BIG_ENDIAN_DESC
  503. help
  504. This adds support for the PMC-Sierra family of Multi-Service
  505. Processor System-On-A-Chips. These parts include a number
  506. of integrated peripherals, interfaces and DSPs in addition to
  507. a variety of MIPS cores.
  508. config RALINK
  509. bool "Ralink based machines"
  510. select CEVT_R4K
  511. select CSRC_R4K
  512. select BOOT_RAW
  513. select DMA_NONCOHERENT
  514. select IRQ_MIPS_CPU
  515. select USE_OF
  516. select SYS_HAS_CPU_MIPS32_R1
  517. select SYS_HAS_CPU_MIPS32_R2
  518. select SYS_SUPPORTS_32BIT_KERNEL
  519. select SYS_SUPPORTS_LITTLE_ENDIAN
  520. select SYS_SUPPORTS_MIPS16
  521. select SYS_HAS_EARLY_PRINTK
  522. select HAVE_MACH_CLKDEV
  523. select CLKDEV_LOOKUP
  524. select ARCH_HAS_RESET_CONTROLLER
  525. select RESET_CONTROLLER
  526. config SGI_IP22
  527. bool "SGI IP22 (Indy/Indigo2)"
  528. select FW_ARC
  529. select FW_ARC32
  530. select BOOT_ELF32
  531. select CEVT_R4K
  532. select CSRC_R4K
  533. select DEFAULT_SGI_PARTITION
  534. select DMA_NONCOHERENT
  535. select HW_HAS_EISA
  536. select I8253
  537. select I8259
  538. select IP22_CPU_SCACHE
  539. select IRQ_MIPS_CPU
  540. select GENERIC_ISA_DMA_SUPPORT_BROKEN
  541. select SGI_HAS_I8042
  542. select SGI_HAS_INDYDOG
  543. select SGI_HAS_HAL2
  544. select SGI_HAS_SEEQ
  545. select SGI_HAS_WD93
  546. select SGI_HAS_ZILOG
  547. select SWAP_IO_SPACE
  548. select SYS_HAS_CPU_R4X00
  549. select SYS_HAS_CPU_R5000
  550. #
  551. # Disable EARLY_PRINTK for now since it leads to overwritten prom
  552. # memory during early boot on some machines.
  553. #
  554. # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
  555. # for a more details discussion
  556. #
  557. # select SYS_HAS_EARLY_PRINTK
  558. select SYS_SUPPORTS_32BIT_KERNEL
  559. select SYS_SUPPORTS_64BIT_KERNEL
  560. select SYS_SUPPORTS_BIG_ENDIAN
  561. select MIPS_L1_CACHE_SHIFT_7
  562. help
  563. This are the SGI Indy, Challenge S and Indigo2, as well as certain
  564. OEM variants like the Tandem CMN B006S. To compile a Linux kernel
  565. that runs on these, say Y here.
  566. config SGI_IP27
  567. bool "SGI IP27 (Origin200/2000)"
  568. select FW_ARC
  569. select FW_ARC64
  570. select BOOT_ELF64
  571. select DEFAULT_SGI_PARTITION
  572. select DMA_COHERENT
  573. select SYS_HAS_EARLY_PRINTK
  574. select HW_HAS_PCI
  575. select NR_CPUS_DEFAULT_64
  576. select SYS_HAS_CPU_R10000
  577. select SYS_SUPPORTS_64BIT_KERNEL
  578. select SYS_SUPPORTS_BIG_ENDIAN
  579. select SYS_SUPPORTS_NUMA
  580. select SYS_SUPPORTS_SMP
  581. select MIPS_L1_CACHE_SHIFT_7
  582. help
  583. This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
  584. workstations. To compile a Linux kernel that runs on these, say Y
  585. here.
  586. config SGI_IP28
  587. bool "SGI IP28 (Indigo2 R10k)"
  588. select FW_ARC
  589. select FW_ARC64
  590. select BOOT_ELF64
  591. select CEVT_R4K
  592. select CSRC_R4K
  593. select DEFAULT_SGI_PARTITION
  594. select DMA_NONCOHERENT
  595. select GENERIC_ISA_DMA_SUPPORT_BROKEN
  596. select IRQ_MIPS_CPU
  597. select HW_HAS_EISA
  598. select I8253
  599. select I8259
  600. select SGI_HAS_I8042
  601. select SGI_HAS_INDYDOG
  602. select SGI_HAS_HAL2
  603. select SGI_HAS_SEEQ
  604. select SGI_HAS_WD93
  605. select SGI_HAS_ZILOG
  606. select SWAP_IO_SPACE
  607. select SYS_HAS_CPU_R10000
  608. #
  609. # Disable EARLY_PRINTK for now since it leads to overwritten prom
  610. # memory during early boot on some machines.
  611. #
  612. # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
  613. # for a more details discussion
  614. #
  615. # select SYS_HAS_EARLY_PRINTK
  616. select SYS_SUPPORTS_64BIT_KERNEL
  617. select SYS_SUPPORTS_BIG_ENDIAN
  618. select MIPS_L1_CACHE_SHIFT_7
  619. help
  620. This is the SGI Indigo2 with R10000 processor. To compile a Linux
  621. kernel that runs on these, say Y here.
  622. config SGI_IP32
  623. bool "SGI IP32 (O2)"
  624. select FW_ARC
  625. select FW_ARC32
  626. select BOOT_ELF32
  627. select CEVT_R4K
  628. select CSRC_R4K
  629. select DMA_NONCOHERENT
  630. select HW_HAS_PCI
  631. select IRQ_MIPS_CPU
  632. select R5000_CPU_SCACHE
  633. select RM7000_CPU_SCACHE
  634. select SYS_HAS_CPU_R5000
  635. select SYS_HAS_CPU_R10000 if BROKEN
  636. select SYS_HAS_CPU_RM7000
  637. select SYS_HAS_CPU_NEVADA
  638. select SYS_SUPPORTS_64BIT_KERNEL
  639. select SYS_SUPPORTS_BIG_ENDIAN
  640. help
  641. If you want this kernel to run on SGI O2 workstation, say Y here.
  642. config SIBYTE_CRHINE
  643. bool "Sibyte BCM91120C-CRhine"
  644. select BOOT_ELF32
  645. select DMA_COHERENT
  646. select SIBYTE_BCM1120
  647. select SWAP_IO_SPACE
  648. select SYS_HAS_CPU_SB1
  649. select SYS_SUPPORTS_BIG_ENDIAN
  650. select SYS_SUPPORTS_LITTLE_ENDIAN
  651. config SIBYTE_CARMEL
  652. bool "Sibyte BCM91120x-Carmel"
  653. select BOOT_ELF32
  654. select DMA_COHERENT
  655. select SIBYTE_BCM1120
  656. select SWAP_IO_SPACE
  657. select SYS_HAS_CPU_SB1
  658. select SYS_SUPPORTS_BIG_ENDIAN
  659. select SYS_SUPPORTS_LITTLE_ENDIAN
  660. config SIBYTE_CRHONE
  661. bool "Sibyte BCM91125C-CRhone"
  662. select BOOT_ELF32
  663. select DMA_COHERENT
  664. select SIBYTE_BCM1125
  665. select SWAP_IO_SPACE
  666. select SYS_HAS_CPU_SB1
  667. select SYS_SUPPORTS_BIG_ENDIAN
  668. select SYS_SUPPORTS_HIGHMEM
  669. select SYS_SUPPORTS_LITTLE_ENDIAN
  670. config SIBYTE_RHONE
  671. bool "Sibyte BCM91125E-Rhone"
  672. select BOOT_ELF32
  673. select DMA_COHERENT
  674. select SIBYTE_BCM1125H
  675. select SWAP_IO_SPACE
  676. select SYS_HAS_CPU_SB1
  677. select SYS_SUPPORTS_BIG_ENDIAN
  678. select SYS_SUPPORTS_LITTLE_ENDIAN
  679. config SIBYTE_SWARM
  680. bool "Sibyte BCM91250A-SWARM"
  681. select BOOT_ELF32
  682. select DMA_COHERENT
  683. select HAVE_PATA_PLATFORM
  684. select SIBYTE_SB1250
  685. select SWAP_IO_SPACE
  686. select SYS_HAS_CPU_SB1
  687. select SYS_SUPPORTS_BIG_ENDIAN
  688. select SYS_SUPPORTS_HIGHMEM
  689. select SYS_SUPPORTS_LITTLE_ENDIAN
  690. select ZONE_DMA32 if 64BIT
  691. config SIBYTE_LITTLESUR
  692. bool "Sibyte BCM91250C2-LittleSur"
  693. select BOOT_ELF32
  694. select DMA_COHERENT
  695. select HAVE_PATA_PLATFORM
  696. select SIBYTE_SB1250
  697. select SWAP_IO_SPACE
  698. select SYS_HAS_CPU_SB1
  699. select SYS_SUPPORTS_BIG_ENDIAN
  700. select SYS_SUPPORTS_HIGHMEM
  701. select SYS_SUPPORTS_LITTLE_ENDIAN
  702. config SIBYTE_SENTOSA
  703. bool "Sibyte BCM91250E-Sentosa"
  704. select BOOT_ELF32
  705. select DMA_COHERENT
  706. select SIBYTE_SB1250
  707. select SWAP_IO_SPACE
  708. select SYS_HAS_CPU_SB1
  709. select SYS_SUPPORTS_BIG_ENDIAN
  710. select SYS_SUPPORTS_LITTLE_ENDIAN
  711. config SIBYTE_BIGSUR
  712. bool "Sibyte BCM91480B-BigSur"
  713. select BOOT_ELF32
  714. select DMA_COHERENT
  715. select NR_CPUS_DEFAULT_4
  716. select SIBYTE_BCM1x80
  717. select SWAP_IO_SPACE
  718. select SYS_HAS_CPU_SB1
  719. select SYS_SUPPORTS_BIG_ENDIAN
  720. select SYS_SUPPORTS_HIGHMEM
  721. select SYS_SUPPORTS_LITTLE_ENDIAN
  722. select ZONE_DMA32 if 64BIT
  723. config SNI_RM
  724. bool "SNI RM200/300/400"
  725. select FW_ARC if CPU_LITTLE_ENDIAN
  726. select FW_ARC32 if CPU_LITTLE_ENDIAN
  727. select FW_SNIPROM if CPU_BIG_ENDIAN
  728. select ARCH_MAY_HAVE_PC_FDC
  729. select BOOT_ELF32
  730. select CEVT_R4K
  731. select CSRC_R4K
  732. select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
  733. select DMA_NONCOHERENT
  734. select GENERIC_ISA_DMA
  735. select HAVE_PCSPKR_PLATFORM
  736. select HW_HAS_EISA
  737. select HW_HAS_PCI
  738. select IRQ_MIPS_CPU
  739. select I8253
  740. select I8259
  741. select ISA
  742. select SWAP_IO_SPACE if CPU_BIG_ENDIAN
  743. select SYS_HAS_CPU_R4X00
  744. select SYS_HAS_CPU_R5000
  745. select SYS_HAS_CPU_R10000
  746. select R5000_CPU_SCACHE
  747. select SYS_HAS_EARLY_PRINTK
  748. select SYS_SUPPORTS_32BIT_KERNEL
  749. select SYS_SUPPORTS_64BIT_KERNEL
  750. select SYS_SUPPORTS_BIG_ENDIAN
  751. select SYS_SUPPORTS_HIGHMEM
  752. select SYS_SUPPORTS_LITTLE_ENDIAN
  753. help
  754. The SNI RM200/300/400 are MIPS-based machines manufactured by
  755. Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
  756. Technology and now in turn merged with Fujitsu. Say Y here to
  757. support this machine type.
  758. config MACH_TX39XX
  759. bool "Toshiba TX39 series based machines"
  760. config MACH_TX49XX
  761. bool "Toshiba TX49 series based machines"
  762. config MIKROTIK_RB532
  763. bool "Mikrotik RB532 boards"
  764. select CEVT_R4K
  765. select CSRC_R4K
  766. select DMA_NONCOHERENT
  767. select HW_HAS_PCI
  768. select IRQ_MIPS_CPU
  769. select SYS_HAS_CPU_MIPS32_R1
  770. select SYS_SUPPORTS_32BIT_KERNEL
  771. select SYS_SUPPORTS_LITTLE_ENDIAN
  772. select SWAP_IO_SPACE
  773. select BOOT_RAW
  774. select ARCH_REQUIRE_GPIOLIB
  775. select MIPS_L1_CACHE_SHIFT_4
  776. help
  777. Support the Mikrotik(tm) RouterBoard 532 series,
  778. based on the IDT RC32434 SoC.
  779. config CAVIUM_OCTEON_SOC
  780. bool "Cavium Networks Octeon SoC based boards"
  781. select CEVT_R4K
  782. select ARCH_PHYS_ADDR_T_64BIT
  783. select DMA_COHERENT
  784. select SYS_SUPPORTS_64BIT_KERNEL
  785. select SYS_SUPPORTS_BIG_ENDIAN
  786. select EDAC_SUPPORT
  787. select EDAC_ATOMIC_SCRUB
  788. select SYS_SUPPORTS_LITTLE_ENDIAN
  789. select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
  790. select SYS_HAS_EARLY_PRINTK
  791. select SYS_HAS_CPU_CAVIUM_OCTEON
  792. select SWAP_IO_SPACE
  793. select HW_HAS_PCI
  794. select ZONE_DMA32
  795. select HOLES_IN_ZONE
  796. select ARCH_REQUIRE_GPIOLIB
  797. select LIBFDT
  798. select USE_OF
  799. select ARCH_SPARSEMEM_ENABLE
  800. select SYS_SUPPORTS_SMP
  801. select NR_CPUS_DEFAULT_16
  802. select BUILTIN_DTB
  803. select MTD_COMPLEX_MAPPINGS
  804. help
  805. This option supports all of the Octeon reference boards from Cavium
  806. Networks. It builds a kernel that dynamically determines the Octeon
  807. CPU type and supports all known board reference implementations.
  808. Some of the supported boards are:
  809. EBT3000
  810. EBH3000
  811. EBH3100
  812. Thunder
  813. Kodama
  814. Hikari
  815. Say Y here for most Octeon reference boards.
  816. config NLM_XLR_BOARD
  817. bool "Netlogic XLR/XLS based systems"
  818. select BOOT_ELF32
  819. select NLM_COMMON
  820. select SYS_HAS_CPU_XLR
  821. select SYS_SUPPORTS_SMP
  822. select HW_HAS_PCI
  823. select SWAP_IO_SPACE
  824. select SYS_SUPPORTS_32BIT_KERNEL
  825. select SYS_SUPPORTS_64BIT_KERNEL
  826. select ARCH_PHYS_ADDR_T_64BIT
  827. select SYS_SUPPORTS_BIG_ENDIAN
  828. select SYS_SUPPORTS_HIGHMEM
  829. select DMA_COHERENT
  830. select NR_CPUS_DEFAULT_32
  831. select CEVT_R4K
  832. select CSRC_R4K
  833. select IRQ_MIPS_CPU
  834. select ZONE_DMA32 if 64BIT
  835. select SYNC_R4K
  836. select SYS_HAS_EARLY_PRINTK
  837. select SYS_SUPPORTS_ZBOOT
  838. select SYS_SUPPORTS_ZBOOT_UART16550
  839. help
  840. Support for systems based on Netlogic XLR and XLS processors.
  841. Say Y here if you have a XLR or XLS based board.
  842. config NLM_XLP_BOARD
  843. bool "Netlogic XLP based systems"
  844. select BOOT_ELF32
  845. select NLM_COMMON
  846. select SYS_HAS_CPU_XLP
  847. select SYS_SUPPORTS_SMP
  848. select HW_HAS_PCI
  849. select SYS_SUPPORTS_32BIT_KERNEL
  850. select SYS_SUPPORTS_64BIT_KERNEL
  851. select ARCH_PHYS_ADDR_T_64BIT
  852. select SYS_SUPPORTS_BIG_ENDIAN
  853. select SYS_SUPPORTS_LITTLE_ENDIAN
  854. select SYS_SUPPORTS_HIGHMEM
  855. select DMA_COHERENT
  856. select NR_CPUS_DEFAULT_32
  857. select CEVT_R4K
  858. select CSRC_R4K
  859. select IRQ_MIPS_CPU
  860. select ZONE_DMA32 if 64BIT
  861. select SYNC_R4K
  862. select SYS_HAS_EARLY_PRINTK
  863. select USE_OF
  864. select SYS_SUPPORTS_ZBOOT
  865. select SYS_SUPPORTS_ZBOOT_UART16550
  866. help
  867. This board is based on Netlogic XLP Processor.
  868. Say Y here if you have a XLP based board.
  869. config MIPS_PARAVIRT
  870. bool "Para-Virtualized guest system"
  871. select CEVT_R4K
  872. select CSRC_R4K
  873. select DMA_COHERENT
  874. select SYS_SUPPORTS_64BIT_KERNEL
  875. select SYS_SUPPORTS_32BIT_KERNEL
  876. select SYS_SUPPORTS_BIG_ENDIAN
  877. select SYS_SUPPORTS_SMP
  878. select NR_CPUS_DEFAULT_4
  879. select SYS_HAS_EARLY_PRINTK
  880. select SYS_HAS_CPU_MIPS32_R2
  881. select SYS_HAS_CPU_MIPS64_R2
  882. select SYS_HAS_CPU_CAVIUM_OCTEON
  883. select HW_HAS_PCI
  884. select SWAP_IO_SPACE
  885. help
  886. This option supports guest running under ????
  887. endchoice
  888. source "arch/mips/alchemy/Kconfig"
  889. source "arch/mips/ath25/Kconfig"
  890. source "arch/mips/ath79/Kconfig"
  891. source "arch/mips/bcm47xx/Kconfig"
  892. source "arch/mips/bcm63xx/Kconfig"
  893. source "arch/mips/bmips/Kconfig"
  894. source "arch/mips/jazz/Kconfig"
  895. source "arch/mips/jz4740/Kconfig"
  896. source "arch/mips/lantiq/Kconfig"
  897. source "arch/mips/lasat/Kconfig"
  898. source "arch/mips/pmcs-msp71xx/Kconfig"
  899. source "arch/mips/ralink/Kconfig"
  900. source "arch/mips/sgi-ip27/Kconfig"
  901. source "arch/mips/sibyte/Kconfig"
  902. source "arch/mips/txx9/Kconfig"
  903. source "arch/mips/vr41xx/Kconfig"
  904. source "arch/mips/cavium-octeon/Kconfig"
  905. source "arch/mips/loongson32/Kconfig"
  906. source "arch/mips/loongson64/Kconfig"
  907. source "arch/mips/netlogic/Kconfig"
  908. source "arch/mips/paravirt/Kconfig"
  909. endmenu
  910. config RWSEM_GENERIC_SPINLOCK
  911. bool
  912. default y
  913. config RWSEM_XCHGADD_ALGORITHM
  914. bool
  915. config ARCH_HAS_ILOG2_U32
  916. bool
  917. default n
  918. config ARCH_HAS_ILOG2_U64
  919. bool
  920. default n
  921. config GENERIC_HWEIGHT
  922. bool
  923. default y
  924. config GENERIC_CALIBRATE_DELAY
  925. bool
  926. default y
  927. config SCHED_OMIT_FRAME_POINTER
  928. bool
  929. default y
  930. #
  931. # Select some configuration options automatically based on user selections.
  932. #
  933. config FW_ARC
  934. bool
  935. config ARCH_MAY_HAVE_PC_FDC
  936. bool
  937. config BOOT_RAW
  938. bool
  939. config CEVT_BCM1480
  940. bool
  941. config CEVT_DS1287
  942. bool
  943. config CEVT_GT641XX
  944. bool
  945. config CEVT_R4K
  946. bool
  947. config CEVT_SB1250
  948. bool
  949. config CEVT_TXX9
  950. bool
  951. config CSRC_BCM1480
  952. bool
  953. config CSRC_IOASIC
  954. bool
  955. config CSRC_R4K
  956. bool
  957. config CSRC_SB1250
  958. bool
  959. config GPIO_TXX9
  960. select ARCH_REQUIRE_GPIOLIB
  961. bool
  962. config FW_CFE
  963. bool
  964. config ARCH_DMA_ADDR_T_64BIT
  965. def_bool (HIGHMEM && ARCH_PHYS_ADDR_T_64BIT) || 64BIT
  966. config DMA_MAYBE_COHERENT
  967. select DMA_NONCOHERENT
  968. bool
  969. config DMA_COHERENT
  970. bool
  971. config DMA_NONCOHERENT
  972. bool
  973. select NEED_DMA_MAP_STATE
  974. config NEED_DMA_MAP_STATE
  975. bool
  976. config SYS_HAS_EARLY_PRINTK
  977. bool
  978. config HOTPLUG_CPU
  979. bool "Support for hot-pluggable CPUs"
  980. depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
  981. help
  982. Say Y here to allow turning CPUs off and on. CPUs can be
  983. controlled through /sys/devices/system/cpu.
  984. (Note: power management support will enable this option
  985. automatically on SMP systems. )
  986. Say N if you want to disable CPU hotplug.
  987. config SYS_SUPPORTS_HOTPLUG_CPU
  988. bool
  989. config I8259
  990. bool
  991. select IRQ_DOMAIN
  992. config MIPS_BONITO64
  993. bool
  994. config MIPS_MSC
  995. bool
  996. config MIPS_NILE4
  997. bool
  998. config SYNC_R4K
  999. bool
  1000. config MIPS_MACHINE
  1001. def_bool n
  1002. config NO_IOPORT_MAP
  1003. def_bool n
  1004. config GENERIC_CSUM
  1005. bool
  1006. config GENERIC_ISA_DMA
  1007. bool
  1008. select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
  1009. select ISA_DMA_API
  1010. config GENERIC_ISA_DMA_SUPPORT_BROKEN
  1011. bool
  1012. select GENERIC_ISA_DMA
  1013. config ISA_DMA_API
  1014. bool
  1015. config HOLES_IN_ZONE
  1016. bool
  1017. #
  1018. # Endianness selection. Sufficiently obscure so many users don't know what to
  1019. # answer,so we try hard to limit the available choices. Also the use of a
  1020. # choice statement should be more obvious to the user.
  1021. #
  1022. choice
  1023. prompt "Endianness selection"
  1024. help
  1025. Some MIPS machines can be configured for either little or big endian
  1026. byte order. These modes require different kernels and a different
  1027. Linux distribution. In general there is one preferred byteorder for a
  1028. particular system but some systems are just as commonly used in the
  1029. one or the other endianness.
  1030. config CPU_BIG_ENDIAN
  1031. bool "Big endian"
  1032. depends on SYS_SUPPORTS_BIG_ENDIAN
  1033. config CPU_LITTLE_ENDIAN
  1034. bool "Little endian"
  1035. depends on SYS_SUPPORTS_LITTLE_ENDIAN
  1036. endchoice
  1037. config EXPORT_UASM
  1038. bool
  1039. config SYS_SUPPORTS_APM_EMULATION
  1040. bool
  1041. config SYS_SUPPORTS_BIG_ENDIAN
  1042. bool
  1043. config SYS_SUPPORTS_LITTLE_ENDIAN
  1044. bool
  1045. config SYS_SUPPORTS_HUGETLBFS
  1046. bool
  1047. depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
  1048. default y
  1049. config MIPS_HUGE_TLB_SUPPORT
  1050. def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
  1051. config IRQ_CPU_RM7K
  1052. bool
  1053. config IRQ_MSP_SLP
  1054. bool
  1055. config IRQ_MSP_CIC
  1056. bool
  1057. config IRQ_TXX9
  1058. bool
  1059. config IRQ_GT641XX
  1060. bool
  1061. config PCI_GT64XXX_PCI0
  1062. bool
  1063. config NO_EXCEPT_FILL
  1064. bool
  1065. config SOC_EMMA2RH
  1066. bool
  1067. select CEVT_R4K
  1068. select CSRC_R4K
  1069. select DMA_NONCOHERENT
  1070. select IRQ_MIPS_CPU
  1071. select SWAP_IO_SPACE
  1072. select SYS_HAS_CPU_R5500
  1073. select SYS_SUPPORTS_32BIT_KERNEL
  1074. select SYS_SUPPORTS_64BIT_KERNEL
  1075. select SYS_SUPPORTS_BIG_ENDIAN
  1076. config SOC_PNX833X
  1077. bool
  1078. select CEVT_R4K
  1079. select CSRC_R4K
  1080. select IRQ_MIPS_CPU
  1081. select DMA_NONCOHERENT
  1082. select SYS_HAS_CPU_MIPS32_R2
  1083. select SYS_SUPPORTS_32BIT_KERNEL
  1084. select SYS_SUPPORTS_LITTLE_ENDIAN
  1085. select SYS_SUPPORTS_BIG_ENDIAN
  1086. select SYS_SUPPORTS_MIPS16
  1087. select CPU_MIPSR2_IRQ_VI
  1088. config SOC_PNX8335
  1089. bool
  1090. select SOC_PNX833X
  1091. config MIPS_SPRAM
  1092. bool
  1093. config SWAP_IO_SPACE
  1094. bool
  1095. config SGI_HAS_INDYDOG
  1096. bool
  1097. config SGI_HAS_HAL2
  1098. bool
  1099. config SGI_HAS_SEEQ
  1100. bool
  1101. config SGI_HAS_WD93
  1102. bool
  1103. config SGI_HAS_ZILOG
  1104. bool
  1105. config SGI_HAS_I8042
  1106. bool
  1107. config DEFAULT_SGI_PARTITION
  1108. bool
  1109. config FW_ARC32
  1110. bool
  1111. config FW_SNIPROM
  1112. bool
  1113. config BOOT_ELF32
  1114. bool
  1115. config MIPS_L1_CACHE_SHIFT_4
  1116. bool
  1117. config MIPS_L1_CACHE_SHIFT_5
  1118. bool
  1119. config MIPS_L1_CACHE_SHIFT_6
  1120. bool
  1121. config MIPS_L1_CACHE_SHIFT_7
  1122. bool
  1123. config MIPS_L1_CACHE_SHIFT
  1124. int
  1125. default "7" if MIPS_L1_CACHE_SHIFT_7
  1126. default "6" if MIPS_L1_CACHE_SHIFT_6
  1127. default "5" if MIPS_L1_CACHE_SHIFT_5
  1128. default "4" if MIPS_L1_CACHE_SHIFT_4
  1129. default "5"
  1130. config HAVE_STD_PC_SERIAL_PORT
  1131. bool
  1132. config ARC_CONSOLE
  1133. bool "ARC console support"
  1134. depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
  1135. config ARC_MEMORY
  1136. bool
  1137. depends on MACH_JAZZ || SNI_RM || SGI_IP32
  1138. default y
  1139. config ARC_PROMLIB
  1140. bool
  1141. depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
  1142. default y
  1143. config FW_ARC64
  1144. bool
  1145. config BOOT_ELF64
  1146. bool
  1147. menu "CPU selection"
  1148. choice
  1149. prompt "CPU type"
  1150. default CPU_R4X00
  1151. config CPU_LOONGSON3
  1152. bool "Loongson 3 CPU"
  1153. depends on SYS_HAS_CPU_LOONGSON3
  1154. select CPU_SUPPORTS_64BIT_KERNEL
  1155. select CPU_SUPPORTS_HIGHMEM
  1156. select CPU_SUPPORTS_HUGEPAGES
  1157. select WEAK_ORDERING
  1158. select WEAK_REORDERING_BEYOND_LLSC
  1159. select ARCH_REQUIRE_GPIOLIB
  1160. help
  1161. The Loongson 3 processor implements the MIPS64R2 instruction
  1162. set with many extensions.
  1163. config CPU_LOONGSON2E
  1164. bool "Loongson 2E"
  1165. depends on SYS_HAS_CPU_LOONGSON2E
  1166. select CPU_LOONGSON2
  1167. help
  1168. The Loongson 2E processor implements the MIPS III instruction set
  1169. with many extensions.
  1170. It has an internal FPGA northbridge, which is compatible to
  1171. bonito64.
  1172. config CPU_LOONGSON2F
  1173. bool "Loongson 2F"
  1174. depends on SYS_HAS_CPU_LOONGSON2F
  1175. select CPU_LOONGSON2
  1176. select ARCH_REQUIRE_GPIOLIB
  1177. help
  1178. The Loongson 2F processor implements the MIPS III instruction set
  1179. with many extensions.
  1180. Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
  1181. have a similar programming interface with FPGA northbridge used in
  1182. Loongson2E.
  1183. config CPU_LOONGSON1B
  1184. bool "Loongson 1B"
  1185. depends on SYS_HAS_CPU_LOONGSON1B
  1186. select CPU_LOONGSON1
  1187. help
  1188. The Loongson 1B is a 32-bit SoC, which implements the MIPS32
  1189. release 2 instruction set.
  1190. config CPU_MIPS32_R1
  1191. bool "MIPS32 Release 1"
  1192. depends on SYS_HAS_CPU_MIPS32_R1
  1193. select CPU_HAS_PREFETCH
  1194. select CPU_SUPPORTS_32BIT_KERNEL
  1195. select CPU_SUPPORTS_HIGHMEM
  1196. help
  1197. Choose this option to build a kernel for release 1 or later of the
  1198. MIPS32 architecture. Most modern embedded systems with a 32-bit
  1199. MIPS processor are based on a MIPS32 processor. If you know the
  1200. specific type of processor in your system, choose those that one
  1201. otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
  1202. Release 2 of the MIPS32 architecture is available since several
  1203. years so chances are you even have a MIPS32 Release 2 processor
  1204. in which case you should choose CPU_MIPS32_R2 instead for better
  1205. performance.
  1206. config CPU_MIPS32_R2
  1207. bool "MIPS32 Release 2"
  1208. depends on SYS_HAS_CPU_MIPS32_R2
  1209. select CPU_HAS_PREFETCH
  1210. select CPU_SUPPORTS_32BIT_KERNEL
  1211. select CPU_SUPPORTS_HIGHMEM
  1212. select CPU_SUPPORTS_MSA
  1213. select HAVE_KVM
  1214. help
  1215. Choose this option to build a kernel for release 2 or later of the
  1216. MIPS32 architecture. Most modern embedded systems with a 32-bit
  1217. MIPS processor are based on a MIPS32 processor. If you know the
  1218. specific type of processor in your system, choose those that one
  1219. otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
  1220. config CPU_MIPS32_R6
  1221. bool "MIPS32 Release 6 (EXPERIMENTAL)"
  1222. depends on SYS_HAS_CPU_MIPS32_R6
  1223. select CPU_HAS_PREFETCH
  1224. select CPU_SUPPORTS_32BIT_KERNEL
  1225. select CPU_SUPPORTS_HIGHMEM
  1226. select CPU_SUPPORTS_MSA
  1227. select GENERIC_CSUM
  1228. select HAVE_KVM
  1229. select MIPS_O32_FP64_SUPPORT
  1230. help
  1231. Choose this option to build a kernel for release 6 or later of the
  1232. MIPS32 architecture. New MIPS processors, starting with the Warrior
  1233. family, are based on a MIPS32r6 processor. If you own an older
  1234. processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
  1235. config CPU_MIPS64_R1
  1236. bool "MIPS64 Release 1"
  1237. depends on SYS_HAS_CPU_MIPS64_R1
  1238. select CPU_HAS_PREFETCH
  1239. select CPU_SUPPORTS_32BIT_KERNEL
  1240. select CPU_SUPPORTS_64BIT_KERNEL
  1241. select CPU_SUPPORTS_HIGHMEM
  1242. select CPU_SUPPORTS_HUGEPAGES
  1243. help
  1244. Choose this option to build a kernel for release 1 or later of the
  1245. MIPS64 architecture. Many modern embedded systems with a 64-bit
  1246. MIPS processor are based on a MIPS64 processor. If you know the
  1247. specific type of processor in your system, choose those that one
  1248. otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
  1249. Release 2 of the MIPS64 architecture is available since several
  1250. years so chances are you even have a MIPS64 Release 2 processor
  1251. in which case you should choose CPU_MIPS64_R2 instead for better
  1252. performance.
  1253. config CPU_MIPS64_R2
  1254. bool "MIPS64 Release 2"
  1255. depends on SYS_HAS_CPU_MIPS64_R2
  1256. select CPU_HAS_PREFETCH
  1257. select CPU_SUPPORTS_32BIT_KERNEL
  1258. select CPU_SUPPORTS_64BIT_KERNEL
  1259. select CPU_SUPPORTS_HIGHMEM
  1260. select CPU_SUPPORTS_HUGEPAGES
  1261. select CPU_SUPPORTS_MSA
  1262. help
  1263. Choose this option to build a kernel for release 2 or later of the
  1264. MIPS64 architecture. Many modern embedded systems with a 64-bit
  1265. MIPS processor are based on a MIPS64 processor. If you know the
  1266. specific type of processor in your system, choose those that one
  1267. otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
  1268. config CPU_MIPS64_R6
  1269. bool "MIPS64 Release 6 (EXPERIMENTAL)"
  1270. depends on SYS_HAS_CPU_MIPS64_R6
  1271. select CPU_HAS_PREFETCH
  1272. select CPU_SUPPORTS_32BIT_KERNEL
  1273. select CPU_SUPPORTS_64BIT_KERNEL
  1274. select CPU_SUPPORTS_HIGHMEM
  1275. select CPU_SUPPORTS_MSA
  1276. select GENERIC_CSUM
  1277. help
  1278. Choose this option to build a kernel for release 6 or later of the
  1279. MIPS64 architecture. New MIPS processors, starting with the Warrior
  1280. family, are based on a MIPS64r6 processor. If you own an older
  1281. processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
  1282. config CPU_R3000
  1283. bool "R3000"
  1284. depends on SYS_HAS_CPU_R3000
  1285. select CPU_HAS_WB
  1286. select CPU_SUPPORTS_32BIT_KERNEL
  1287. select CPU_SUPPORTS_HIGHMEM
  1288. help
  1289. Please make sure to pick the right CPU type. Linux/MIPS is not
  1290. designed to be generic, i.e. Kernels compiled for R3000 CPUs will
  1291. *not* work on R4000 machines and vice versa. However, since most
  1292. of the supported machines have an R4000 (or similar) CPU, R4x00
  1293. might be a safe bet. If the resulting kernel does not work,
  1294. try to recompile with R3000.
  1295. config CPU_TX39XX
  1296. bool "R39XX"
  1297. depends on SYS_HAS_CPU_TX39XX
  1298. select CPU_SUPPORTS_32BIT_KERNEL
  1299. config CPU_VR41XX
  1300. bool "R41xx"
  1301. depends on SYS_HAS_CPU_VR41XX
  1302. select CPU_SUPPORTS_32BIT_KERNEL
  1303. select CPU_SUPPORTS_64BIT_KERNEL
  1304. help
  1305. The options selects support for the NEC VR4100 series of processors.
  1306. Only choose this option if you have one of these processors as a
  1307. kernel built with this option will not run on any other type of
  1308. processor or vice versa.
  1309. config CPU_R4300
  1310. bool "R4300"
  1311. depends on SYS_HAS_CPU_R4300
  1312. select CPU_SUPPORTS_32BIT_KERNEL
  1313. select CPU_SUPPORTS_64BIT_KERNEL
  1314. help
  1315. MIPS Technologies R4300-series processors.
  1316. config CPU_R4X00
  1317. bool "R4x00"
  1318. depends on SYS_HAS_CPU_R4X00
  1319. select CPU_SUPPORTS_32BIT_KERNEL
  1320. select CPU_SUPPORTS_64BIT_KERNEL
  1321. select CPU_SUPPORTS_HUGEPAGES
  1322. help
  1323. MIPS Technologies R4000-series processors other than 4300, including
  1324. the R4000, R4400, R4600, and 4700.
  1325. config CPU_TX49XX
  1326. bool "R49XX"
  1327. depends on SYS_HAS_CPU_TX49XX
  1328. select CPU_HAS_PREFETCH
  1329. select CPU_SUPPORTS_32BIT_KERNEL
  1330. select CPU_SUPPORTS_64BIT_KERNEL
  1331. select CPU_SUPPORTS_HUGEPAGES
  1332. config CPU_R5000
  1333. bool "R5000"
  1334. depends on SYS_HAS_CPU_R5000
  1335. select CPU_SUPPORTS_32BIT_KERNEL
  1336. select CPU_SUPPORTS_64BIT_KERNEL
  1337. select CPU_SUPPORTS_HUGEPAGES
  1338. help
  1339. MIPS Technologies R5000-series processors other than the Nevada.
  1340. config CPU_R5432
  1341. bool "R5432"
  1342. depends on SYS_HAS_CPU_R5432
  1343. select CPU_SUPPORTS_32BIT_KERNEL
  1344. select CPU_SUPPORTS_64BIT_KERNEL
  1345. select CPU_SUPPORTS_HUGEPAGES
  1346. config CPU_R5500
  1347. bool "R5500"
  1348. depends on SYS_HAS_CPU_R5500
  1349. select CPU_SUPPORTS_32BIT_KERNEL
  1350. select CPU_SUPPORTS_64BIT_KERNEL
  1351. select CPU_SUPPORTS_HUGEPAGES
  1352. help
  1353. NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
  1354. instruction set.
  1355. config CPU_R6000
  1356. bool "R6000"
  1357. depends on SYS_HAS_CPU_R6000
  1358. select CPU_SUPPORTS_32BIT_KERNEL
  1359. help
  1360. MIPS Technologies R6000 and R6000A series processors. Note these
  1361. processors are extremely rare and the support for them is incomplete.
  1362. config CPU_NEVADA
  1363. bool "RM52xx"
  1364. depends on SYS_HAS_CPU_NEVADA
  1365. select CPU_SUPPORTS_32BIT_KERNEL
  1366. select CPU_SUPPORTS_64BIT_KERNEL
  1367. select CPU_SUPPORTS_HUGEPAGES
  1368. help
  1369. QED / PMC-Sierra RM52xx-series ("Nevada") processors.
  1370. config CPU_R8000
  1371. bool "R8000"
  1372. depends on SYS_HAS_CPU_R8000
  1373. select CPU_HAS_PREFETCH
  1374. select CPU_SUPPORTS_64BIT_KERNEL
  1375. help
  1376. MIPS Technologies R8000 processors. Note these processors are
  1377. uncommon and the support for them is incomplete.
  1378. config CPU_R10000
  1379. bool "R10000"
  1380. depends on SYS_HAS_CPU_R10000
  1381. select CPU_HAS_PREFETCH
  1382. select CPU_SUPPORTS_32BIT_KERNEL
  1383. select CPU_SUPPORTS_64BIT_KERNEL
  1384. select CPU_SUPPORTS_HIGHMEM
  1385. select CPU_SUPPORTS_HUGEPAGES
  1386. help
  1387. MIPS Technologies R10000-series processors.
  1388. config CPU_RM7000
  1389. bool "RM7000"
  1390. depends on SYS_HAS_CPU_RM7000
  1391. select CPU_HAS_PREFETCH
  1392. select CPU_SUPPORTS_32BIT_KERNEL
  1393. select CPU_SUPPORTS_64BIT_KERNEL
  1394. select CPU_SUPPORTS_HIGHMEM
  1395. select CPU_SUPPORTS_HUGEPAGES
  1396. config CPU_SB1
  1397. bool "SB1"
  1398. depends on SYS_HAS_CPU_SB1
  1399. select CPU_SUPPORTS_32BIT_KERNEL
  1400. select CPU_SUPPORTS_64BIT_KERNEL
  1401. select CPU_SUPPORTS_HIGHMEM
  1402. select CPU_SUPPORTS_HUGEPAGES
  1403. select WEAK_ORDERING
  1404. config CPU_CAVIUM_OCTEON
  1405. bool "Cavium Octeon processor"
  1406. depends on SYS_HAS_CPU_CAVIUM_OCTEON
  1407. select CPU_HAS_PREFETCH
  1408. select CPU_SUPPORTS_64BIT_KERNEL
  1409. select WEAK_ORDERING
  1410. select CPU_SUPPORTS_HIGHMEM
  1411. select CPU_SUPPORTS_HUGEPAGES
  1412. select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
  1413. select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
  1414. select MIPS_L1_CACHE_SHIFT_7
  1415. help
  1416. The Cavium Octeon processor is a highly integrated chip containing
  1417. many ethernet hardware widgets for networking tasks. The processor
  1418. can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
  1419. Full details can be found at http://www.caviumnetworks.com.
  1420. config CPU_BMIPS
  1421. bool "Broadcom BMIPS"
  1422. depends on SYS_HAS_CPU_BMIPS
  1423. select CPU_MIPS32
  1424. select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
  1425. select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
  1426. select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
  1427. select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
  1428. select CPU_SUPPORTS_32BIT_KERNEL
  1429. select DMA_NONCOHERENT
  1430. select IRQ_MIPS_CPU
  1431. select SWAP_IO_SPACE
  1432. select WEAK_ORDERING
  1433. select CPU_SUPPORTS_HIGHMEM
  1434. select CPU_HAS_PREFETCH
  1435. help
  1436. Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
  1437. config CPU_XLR
  1438. bool "Netlogic XLR SoC"
  1439. depends on SYS_HAS_CPU_XLR
  1440. select CPU_SUPPORTS_32BIT_KERNEL
  1441. select CPU_SUPPORTS_64BIT_KERNEL
  1442. select CPU_SUPPORTS_HIGHMEM
  1443. select CPU_SUPPORTS_HUGEPAGES
  1444. select WEAK_ORDERING
  1445. select WEAK_REORDERING_BEYOND_LLSC
  1446. help
  1447. Netlogic Microsystems XLR/XLS processors.
  1448. config CPU_XLP
  1449. bool "Netlogic XLP SoC"
  1450. depends on SYS_HAS_CPU_XLP
  1451. select CPU_SUPPORTS_32BIT_KERNEL
  1452. select CPU_SUPPORTS_64BIT_KERNEL
  1453. select CPU_SUPPORTS_HIGHMEM
  1454. select WEAK_ORDERING
  1455. select WEAK_REORDERING_BEYOND_LLSC
  1456. select CPU_HAS_PREFETCH
  1457. select CPU_MIPSR2
  1458. select CPU_SUPPORTS_HUGEPAGES
  1459. help
  1460. Netlogic Microsystems XLP processors.
  1461. endchoice
  1462. config CPU_MIPS32_3_5_FEATURES
  1463. bool "MIPS32 Release 3.5 Features"
  1464. depends on SYS_HAS_CPU_MIPS32_R3_5
  1465. depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
  1466. help
  1467. Choose this option to build a kernel for release 2 or later of the
  1468. MIPS32 architecture including features from the 3.5 release such as
  1469. support for Enhanced Virtual Addressing (EVA).
  1470. config CPU_MIPS32_3_5_EVA
  1471. bool "Enhanced Virtual Addressing (EVA)"
  1472. depends on CPU_MIPS32_3_5_FEATURES
  1473. select EVA
  1474. default y
  1475. help
  1476. Choose this option if you want to enable the Enhanced Virtual
  1477. Addressing (EVA) on your MIPS32 core (such as proAptiv).
  1478. One of its primary benefits is an increase in the maximum size
  1479. of lowmem (up to 3GB). If unsure, say 'N' here.
  1480. config CPU_MIPS32_R5_FEATURES
  1481. bool "MIPS32 Release 5 Features"
  1482. depends on SYS_HAS_CPU_MIPS32_R5
  1483. depends on CPU_MIPS32_R2
  1484. help
  1485. Choose this option to build a kernel for release 2 or later of the
  1486. MIPS32 architecture including features from release 5 such as
  1487. support for Extended Physical Addressing (XPA).
  1488. config CPU_MIPS32_R5_XPA
  1489. bool "Extended Physical Addressing (XPA)"
  1490. depends on CPU_MIPS32_R5_FEATURES
  1491. depends on !EVA
  1492. depends on !PAGE_SIZE_4KB
  1493. depends on SYS_SUPPORTS_HIGHMEM
  1494. select XPA
  1495. select HIGHMEM
  1496. select ARCH_PHYS_ADDR_T_64BIT
  1497. default n
  1498. help
  1499. Choose this option if you want to enable the Extended Physical
  1500. Addressing (XPA) on your MIPS32 core (such as P5600 series). The
  1501. benefit is to increase physical addressing equal to or greater
  1502. than 40 bits. Note that this has the side effect of turning on
  1503. 64-bit addressing which in turn makes the PTEs 64-bit in size.
  1504. If unsure, say 'N' here.
  1505. if CPU_LOONGSON2F
  1506. config CPU_NOP_WORKAROUNDS
  1507. bool
  1508. config CPU_JUMP_WORKAROUNDS
  1509. bool
  1510. config CPU_LOONGSON2F_WORKAROUNDS
  1511. bool "Loongson 2F Workarounds"
  1512. default y
  1513. select CPU_NOP_WORKAROUNDS
  1514. select CPU_JUMP_WORKAROUNDS
  1515. help
  1516. Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
  1517. require workarounds. Without workarounds the system may hang
  1518. unexpectedly. For more information please refer to the gas
  1519. -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
  1520. Loongson 2F03 and later have fixed these issues and no workarounds
  1521. are needed. The workarounds have no significant side effect on them
  1522. but may decrease the performance of the system so this option should
  1523. be disabled unless the kernel is intended to be run on 2F01 or 2F02
  1524. systems.
  1525. If unsure, please say Y.
  1526. endif # CPU_LOONGSON2F
  1527. config SYS_SUPPORTS_ZBOOT
  1528. bool
  1529. select HAVE_KERNEL_GZIP
  1530. select HAVE_KERNEL_BZIP2
  1531. select HAVE_KERNEL_LZ4
  1532. select HAVE_KERNEL_LZMA
  1533. select HAVE_KERNEL_LZO
  1534. select HAVE_KERNEL_XZ
  1535. config SYS_SUPPORTS_ZBOOT_UART16550
  1536. bool
  1537. select SYS_SUPPORTS_ZBOOT
  1538. config CPU_LOONGSON2
  1539. bool
  1540. select CPU_SUPPORTS_32BIT_KERNEL
  1541. select CPU_SUPPORTS_64BIT_KERNEL
  1542. select CPU_SUPPORTS_HIGHMEM
  1543. select CPU_SUPPORTS_HUGEPAGES
  1544. config CPU_LOONGSON1
  1545. bool
  1546. select CPU_MIPS32
  1547. select CPU_MIPSR2
  1548. select CPU_HAS_PREFETCH
  1549. select CPU_SUPPORTS_32BIT_KERNEL
  1550. select CPU_SUPPORTS_HIGHMEM
  1551. select CPU_SUPPORTS_CPUFREQ
  1552. config CPU_BMIPS32_3300
  1553. select SMP_UP if SMP
  1554. bool
  1555. config CPU_BMIPS4350
  1556. bool
  1557. select SYS_SUPPORTS_SMP
  1558. select SYS_SUPPORTS_HOTPLUG_CPU
  1559. config CPU_BMIPS4380
  1560. bool
  1561. select MIPS_L1_CACHE_SHIFT_6
  1562. select SYS_SUPPORTS_SMP
  1563. select SYS_SUPPORTS_HOTPLUG_CPU
  1564. config CPU_BMIPS5000
  1565. bool
  1566. select MIPS_CPU_SCACHE
  1567. select MIPS_L1_CACHE_SHIFT_7
  1568. select SYS_SUPPORTS_SMP
  1569. select SYS_SUPPORTS_HOTPLUG_CPU
  1570. config SYS_HAS_CPU_LOONGSON3
  1571. bool
  1572. select CPU_SUPPORTS_CPUFREQ
  1573. config SYS_HAS_CPU_LOONGSON2E
  1574. bool
  1575. config SYS_HAS_CPU_LOONGSON2F
  1576. bool
  1577. select CPU_SUPPORTS_CPUFREQ
  1578. select CPU_SUPPORTS_ADDRWINCFG if 64BIT
  1579. select CPU_SUPPORTS_UNCACHED_ACCELERATED
  1580. config SYS_HAS_CPU_LOONGSON1B
  1581. bool
  1582. config SYS_HAS_CPU_MIPS32_R1
  1583. bool
  1584. config SYS_HAS_CPU_MIPS32_R2
  1585. bool
  1586. config SYS_HAS_CPU_MIPS32_R3_5
  1587. bool
  1588. config SYS_HAS_CPU_MIPS32_R5
  1589. bool
  1590. config SYS_HAS_CPU_MIPS32_R6
  1591. bool
  1592. config SYS_HAS_CPU_MIPS64_R1
  1593. bool
  1594. config SYS_HAS_CPU_MIPS64_R2
  1595. bool
  1596. config SYS_HAS_CPU_MIPS64_R6
  1597. bool
  1598. config SYS_HAS_CPU_R3000
  1599. bool
  1600. config SYS_HAS_CPU_TX39XX
  1601. bool
  1602. config SYS_HAS_CPU_VR41XX
  1603. bool
  1604. config SYS_HAS_CPU_R4300
  1605. bool
  1606. config SYS_HAS_CPU_R4X00
  1607. bool
  1608. config SYS_HAS_CPU_TX49XX
  1609. bool
  1610. config SYS_HAS_CPU_R5000
  1611. bool
  1612. config SYS_HAS_CPU_R5432
  1613. bool
  1614. config SYS_HAS_CPU_R5500
  1615. bool
  1616. config SYS_HAS_CPU_R6000
  1617. bool
  1618. config SYS_HAS_CPU_NEVADA
  1619. bool
  1620. config SYS_HAS_CPU_R8000
  1621. bool
  1622. config SYS_HAS_CPU_R10000
  1623. bool
  1624. config SYS_HAS_CPU_RM7000
  1625. bool
  1626. config SYS_HAS_CPU_SB1
  1627. bool
  1628. config SYS_HAS_CPU_CAVIUM_OCTEON
  1629. bool
  1630. config SYS_HAS_CPU_BMIPS
  1631. bool
  1632. config SYS_HAS_CPU_BMIPS32_3300
  1633. bool
  1634. select SYS_HAS_CPU_BMIPS
  1635. config SYS_HAS_CPU_BMIPS4350
  1636. bool
  1637. select SYS_HAS_CPU_BMIPS
  1638. config SYS_HAS_CPU_BMIPS4380
  1639. bool
  1640. select SYS_HAS_CPU_BMIPS
  1641. config SYS_HAS_CPU_BMIPS5000
  1642. bool
  1643. select SYS_HAS_CPU_BMIPS
  1644. config SYS_HAS_CPU_XLR
  1645. bool
  1646. config SYS_HAS_CPU_XLP
  1647. bool
  1648. config MIPS_MALTA_PM
  1649. depends on MIPS_MALTA
  1650. depends on PCI
  1651. bool
  1652. default y
  1653. #
  1654. # CPU may reorder R->R, R->W, W->R, W->W
  1655. # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
  1656. #
  1657. config WEAK_ORDERING
  1658. bool
  1659. #
  1660. # CPU may reorder reads and writes beyond LL/SC
  1661. # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
  1662. #
  1663. config WEAK_REORDERING_BEYOND_LLSC
  1664. bool
  1665. endmenu
  1666. #
  1667. # These two indicate any level of the MIPS32 and MIPS64 architecture
  1668. #
  1669. config CPU_MIPS32
  1670. bool
  1671. default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
  1672. config CPU_MIPS64
  1673. bool
  1674. default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
  1675. #
  1676. # These two indicate the revision of the architecture, either Release 1 or Release 2
  1677. #
  1678. config CPU_MIPSR1
  1679. bool
  1680. default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
  1681. config CPU_MIPSR2
  1682. bool
  1683. default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
  1684. select MIPS_SPRAM
  1685. config CPU_MIPSR6
  1686. bool
  1687. default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
  1688. select MIPS_SPRAM
  1689. config EVA
  1690. bool
  1691. config XPA
  1692. bool
  1693. config SYS_SUPPORTS_32BIT_KERNEL
  1694. bool
  1695. config SYS_SUPPORTS_64BIT_KERNEL
  1696. bool
  1697. config CPU_SUPPORTS_32BIT_KERNEL
  1698. bool
  1699. config CPU_SUPPORTS_64BIT_KERNEL
  1700. bool
  1701. config CPU_SUPPORTS_CPUFREQ
  1702. bool
  1703. config CPU_SUPPORTS_ADDRWINCFG
  1704. bool
  1705. config CPU_SUPPORTS_HUGEPAGES
  1706. bool
  1707. config CPU_SUPPORTS_UNCACHED_ACCELERATED
  1708. bool
  1709. config MIPS_PGD_C0_CONTEXT
  1710. bool
  1711. default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
  1712. #
  1713. # Set to y for ptrace access to watch registers.
  1714. #
  1715. config HARDWARE_WATCHPOINTS
  1716. bool
  1717. default y if CPU_MIPSR1 || CPU_MIPSR2
  1718. menu "Kernel type"
  1719. choice
  1720. prompt "Kernel code model"
  1721. help
  1722. You should only select this option if you have a workload that
  1723. actually benefits from 64-bit processing or if your machine has
  1724. large memory. You will only be presented a single option in this
  1725. menu if your system does not support both 32-bit and 64-bit kernels.
  1726. config 32BIT
  1727. bool "32-bit kernel"
  1728. depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
  1729. select TRAD_SIGNALS
  1730. help
  1731. Select this option if you want to build a 32-bit kernel.
  1732. config 64BIT
  1733. bool "64-bit kernel"
  1734. depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
  1735. help
  1736. Select this option if you want to build a 64-bit kernel.
  1737. endchoice
  1738. config KVM_GUEST
  1739. bool "KVM Guest Kernel"
  1740. depends on BROKEN_ON_SMP
  1741. help
  1742. Select this option if building a guest kernel for KVM (Trap & Emulate) mode
  1743. config KVM_GUEST_TIMER_FREQ
  1744. int "Count/Compare Timer Frequency (MHz)"
  1745. depends on KVM_GUEST
  1746. default 100
  1747. help
  1748. Set this to non-zero if building a guest kernel for KVM to skip RTC
  1749. emulation when determining guest CPU Frequency. Instead, the guest's
  1750. timer frequency is specified directly.
  1751. choice
  1752. prompt "Kernel page size"
  1753. default PAGE_SIZE_4KB
  1754. config PAGE_SIZE_4KB
  1755. bool "4kB"
  1756. depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
  1757. help
  1758. This option select the standard 4kB Linux page size. On some
  1759. R3000-family processors this is the only available page size. Using
  1760. 4kB page size will minimize memory consumption and is therefore
  1761. recommended for low memory systems.
  1762. config PAGE_SIZE_8KB
  1763. bool "8kB"
  1764. depends on CPU_R8000 || CPU_CAVIUM_OCTEON
  1765. help
  1766. Using 8kB page size will result in higher performance kernel at
  1767. the price of higher memory consumption. This option is available
  1768. only on R8000 and cnMIPS processors. Note that you will need a
  1769. suitable Linux distribution to support this.
  1770. config PAGE_SIZE_16KB
  1771. bool "16kB"
  1772. depends on !CPU_R3000 && !CPU_TX39XX
  1773. help
  1774. Using 16kB page size will result in higher performance kernel at
  1775. the price of higher memory consumption. This option is available on
  1776. all non-R3000 family processors. Note that you will need a suitable
  1777. Linux distribution to support this.
  1778. config PAGE_SIZE_32KB
  1779. bool "32kB"
  1780. depends on CPU_CAVIUM_OCTEON
  1781. help
  1782. Using 32kB page size will result in higher performance kernel at
  1783. the price of higher memory consumption. This option is available
  1784. only on cnMIPS cores. Note that you will need a suitable Linux
  1785. distribution to support this.
  1786. config PAGE_SIZE_64KB
  1787. bool "64kB"
  1788. depends on !CPU_R3000 && !CPU_TX39XX
  1789. help
  1790. Using 64kB page size will result in higher performance kernel at
  1791. the price of higher memory consumption. This option is available on
  1792. all non-R3000 family processor. Not that at the time of this
  1793. writing this option is still high experimental.
  1794. endchoice
  1795. config FORCE_MAX_ZONEORDER
  1796. int "Maximum zone order"
  1797. range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
  1798. default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
  1799. range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
  1800. default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
  1801. range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
  1802. default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
  1803. range 11 64
  1804. default "11"
  1805. help
  1806. The kernel memory allocator divides physically contiguous memory
  1807. blocks into "zones", where each zone is a power of two number of
  1808. pages. This option selects the largest power of two that the kernel
  1809. keeps in the memory allocator. If you need to allocate very large
  1810. blocks of physically contiguous memory, then you may need to
  1811. increase this value.
  1812. This config option is actually maximum order plus one. For example,
  1813. a value of 11 means that the largest free memory block is 2^10 pages.
  1814. The page size is not necessarily 4KB. Keep this in mind
  1815. when choosing a value for this option.
  1816. config BOARD_SCACHE
  1817. bool
  1818. config IP22_CPU_SCACHE
  1819. bool
  1820. select BOARD_SCACHE
  1821. #
  1822. # Support for a MIPS32 / MIPS64 style S-caches
  1823. #
  1824. config MIPS_CPU_SCACHE
  1825. bool
  1826. select BOARD_SCACHE
  1827. config R5000_CPU_SCACHE
  1828. bool
  1829. select BOARD_SCACHE
  1830. config RM7000_CPU_SCACHE
  1831. bool
  1832. select BOARD_SCACHE
  1833. config SIBYTE_DMA_PAGEOPS
  1834. bool "Use DMA to clear/copy pages"
  1835. depends on CPU_SB1
  1836. help
  1837. Instead of using the CPU to zero and copy pages, use a Data Mover
  1838. channel. These DMA channels are otherwise unused by the standard
  1839. SiByte Linux port. Seems to give a small performance benefit.
  1840. config CPU_HAS_PREFETCH
  1841. bool
  1842. config CPU_GENERIC_DUMP_TLB
  1843. bool
  1844. default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
  1845. config CPU_R4K_FPU
  1846. bool
  1847. default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
  1848. config CPU_R4K_CACHE_TLB
  1849. bool
  1850. default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
  1851. config MIPS_MT_SMP
  1852. bool "MIPS MT SMP support (1 TC on each available VPE)"
  1853. depends on SYS_SUPPORTS_MULTITHREADING
  1854. select CPU_MIPSR2_IRQ_VI
  1855. select CPU_MIPSR2_IRQ_EI
  1856. select SYNC_R4K
  1857. select MIPS_GIC_IPI
  1858. select MIPS_MT
  1859. select SMP
  1860. select SMP_UP
  1861. select SYS_SUPPORTS_SMP
  1862. select SYS_SUPPORTS_SCHED_SMT
  1863. select MIPS_PERF_SHARED_TC_COUNTERS
  1864. help
  1865. This is a kernel model which is known as SMVP. This is supported
  1866. on cores with the MT ASE and uses the available VPEs to implement
  1867. virtual processors which supports SMP. This is equivalent to the
  1868. Intel Hyperthreading feature. For further information go to
  1869. <http://www.imgtec.com/mips/mips-multithreading.asp>.
  1870. config MIPS_MT
  1871. bool
  1872. config SCHED_SMT
  1873. bool "SMT (multithreading) scheduler support"
  1874. depends on SYS_SUPPORTS_SCHED_SMT
  1875. default n
  1876. help
  1877. SMT scheduler support improves the CPU scheduler's decision making
  1878. when dealing with MIPS MT enabled cores at a cost of slightly
  1879. increased overhead in some places. If unsure say N here.
  1880. config SYS_SUPPORTS_SCHED_SMT
  1881. bool
  1882. config SYS_SUPPORTS_MULTITHREADING
  1883. bool
  1884. config MIPS_MT_FPAFF
  1885. bool "Dynamic FPU affinity for FP-intensive threads"
  1886. default y
  1887. depends on MIPS_MT_SMP
  1888. config MIPSR2_TO_R6_EMULATOR
  1889. bool "MIPS R2-to-R6 emulator"
  1890. depends on CPU_MIPSR6 && !SMP
  1891. default y
  1892. help
  1893. Choose this option if you want to run non-R6 MIPS userland code.
  1894. Even if you say 'Y' here, the emulator will still be disabled by
  1895. default. You can enable it using the 'mipsr2emu' kernel option.
  1896. The only reason this is a build-time option is to save ~14K from the
  1897. final kernel image.
  1898. comment "MIPS R2-to-R6 emulator is only available for UP kernels"
  1899. depends on SMP && CPU_MIPSR6
  1900. config MIPS_VPE_LOADER
  1901. bool "VPE loader support."
  1902. depends on SYS_SUPPORTS_MULTITHREADING && MODULES
  1903. select CPU_MIPSR2_IRQ_VI
  1904. select CPU_MIPSR2_IRQ_EI
  1905. select MIPS_MT
  1906. help
  1907. Includes a loader for loading an elf relocatable object
  1908. onto another VPE and running it.
  1909. config MIPS_VPE_LOADER_CMP
  1910. bool
  1911. default "y"
  1912. depends on MIPS_VPE_LOADER && MIPS_CMP
  1913. config MIPS_VPE_LOADER_MT
  1914. bool
  1915. default "y"
  1916. depends on MIPS_VPE_LOADER && !MIPS_CMP
  1917. config MIPS_VPE_LOADER_TOM
  1918. bool "Load VPE program into memory hidden from linux"
  1919. depends on MIPS_VPE_LOADER
  1920. default y
  1921. help
  1922. The loader can use memory that is present but has been hidden from
  1923. Linux using the kernel command line option "mem=xxMB". It's up to
  1924. you to ensure the amount you put in the option and the space your
  1925. program requires is less or equal to the amount physically present.
  1926. config MIPS_VPE_APSP_API
  1927. bool "Enable support for AP/SP API (RTLX)"
  1928. depends on MIPS_VPE_LOADER
  1929. help
  1930. config MIPS_VPE_APSP_API_CMP
  1931. bool
  1932. default "y"
  1933. depends on MIPS_VPE_APSP_API && MIPS_CMP
  1934. config MIPS_VPE_APSP_API_MT
  1935. bool
  1936. default "y"
  1937. depends on MIPS_VPE_APSP_API && !MIPS_CMP
  1938. config MIPS_CMP
  1939. bool "MIPS CMP framework support (DEPRECATED)"
  1940. depends on SYS_SUPPORTS_MIPS_CMP
  1941. select MIPS_GIC_IPI
  1942. select SMP
  1943. select SYNC_R4K
  1944. select SYS_SUPPORTS_SMP
  1945. select WEAK_ORDERING
  1946. default n
  1947. help
  1948. Select this if you are using a bootloader which implements the "CMP
  1949. framework" protocol (ie. YAMON) and want your kernel to make use of
  1950. its ability to start secondary CPUs.
  1951. Unless you have a specific need, you should use CONFIG_MIPS_CPS
  1952. instead of this.
  1953. config MIPS_CPS
  1954. bool "MIPS Coherent Processing System support"
  1955. depends on SYS_SUPPORTS_MIPS_CPS && !64BIT
  1956. select MIPS_CM
  1957. select MIPS_CPC
  1958. select MIPS_CPS_PM if HOTPLUG_CPU
  1959. select MIPS_GIC_IPI
  1960. select SMP
  1961. select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
  1962. select SYS_SUPPORTS_HOTPLUG_CPU
  1963. select SYS_SUPPORTS_SMP
  1964. select WEAK_ORDERING
  1965. help
  1966. Select this if you wish to run an SMP kernel across multiple cores
  1967. within a MIPS Coherent Processing System. When this option is
  1968. enabled the kernel will probe for other cores and boot them with
  1969. no external assistance. It is safe to enable this when hardware
  1970. support is unavailable.
  1971. config MIPS_CPS_PM
  1972. depends on MIPS_CPS
  1973. select MIPS_CPC
  1974. bool
  1975. config MIPS_GIC_IPI
  1976. bool
  1977. config MIPS_CM
  1978. bool
  1979. config MIPS_CPC
  1980. bool
  1981. config SB1_PASS_1_WORKAROUNDS
  1982. bool
  1983. depends on CPU_SB1_PASS_1
  1984. default y
  1985. config SB1_PASS_2_WORKAROUNDS
  1986. bool
  1987. depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
  1988. default y
  1989. config SB1_PASS_2_1_WORKAROUNDS
  1990. bool
  1991. depends on CPU_SB1 && CPU_SB1_PASS_2
  1992. default y
  1993. config ARCH_PHYS_ADDR_T_64BIT
  1994. bool
  1995. choice
  1996. prompt "SmartMIPS or microMIPS ASE support"
  1997. config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
  1998. bool "None"
  1999. help
  2000. Select this if you want neither microMIPS nor SmartMIPS support
  2001. config CPU_HAS_SMARTMIPS
  2002. depends on SYS_SUPPORTS_SMARTMIPS
  2003. bool "SmartMIPS"
  2004. help
  2005. SmartMIPS is a extension of the MIPS32 architecture aimed at
  2006. increased security at both hardware and software level for
  2007. smartcards. Enabling this option will allow proper use of the
  2008. SmartMIPS instructions by Linux applications. However a kernel with
  2009. this option will not work on a MIPS core without SmartMIPS core. If
  2010. you don't know you probably don't have SmartMIPS and should say N
  2011. here.
  2012. config CPU_MICROMIPS
  2013. depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
  2014. bool "microMIPS"
  2015. help
  2016. When this option is enabled the kernel will be built using the
  2017. microMIPS ISA
  2018. endchoice
  2019. config CPU_HAS_MSA
  2020. bool "Support for the MIPS SIMD Architecture (EXPERIMENTAL)"
  2021. depends on CPU_SUPPORTS_MSA
  2022. depends on 64BIT || MIPS_O32_FP64_SUPPORT
  2023. help
  2024. MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
  2025. and a set of SIMD instructions to operate on them. When this option
  2026. is enabled the kernel will support allocating & switching MSA
  2027. vector register contexts. If you know that your kernel will only be
  2028. running on CPUs which do not support MSA or that your userland will
  2029. not be making use of it then you may wish to say N here to reduce
  2030. the size & complexity of your kernel.
  2031. If unsure, say Y.
  2032. config CPU_HAS_WB
  2033. bool
  2034. config XKS01
  2035. bool
  2036. #
  2037. # Vectored interrupt mode is an R2 feature
  2038. #
  2039. config CPU_MIPSR2_IRQ_VI
  2040. bool
  2041. #
  2042. # Extended interrupt mode is an R2 feature
  2043. #
  2044. config CPU_MIPSR2_IRQ_EI
  2045. bool
  2046. config CPU_HAS_SYNC
  2047. bool
  2048. depends on !CPU_R3000
  2049. default y
  2050. #
  2051. # CPU non-features
  2052. #
  2053. config CPU_DADDI_WORKAROUNDS
  2054. bool
  2055. config CPU_R4000_WORKAROUNDS
  2056. bool
  2057. select CPU_R4400_WORKAROUNDS
  2058. config CPU_R4400_WORKAROUNDS
  2059. bool
  2060. #
  2061. # - Highmem only makes sense for the 32-bit kernel.
  2062. # - The current highmem code will only work properly on physically indexed
  2063. # caches such as R3000, SB1, R7000 or those that look like they're virtually
  2064. # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
  2065. # moment we protect the user and offer the highmem option only on machines
  2066. # where it's known to be safe. This will not offer highmem on a few systems
  2067. # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
  2068. # indexed CPUs but we're playing safe.
  2069. # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
  2070. # know they might have memory configurations that could make use of highmem
  2071. # support.
  2072. #
  2073. config HIGHMEM
  2074. bool "High Memory Support"
  2075. depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
  2076. config CPU_SUPPORTS_HIGHMEM
  2077. bool
  2078. config SYS_SUPPORTS_HIGHMEM
  2079. bool
  2080. config SYS_SUPPORTS_SMARTMIPS
  2081. bool
  2082. config SYS_SUPPORTS_MICROMIPS
  2083. bool
  2084. config SYS_SUPPORTS_MIPS16
  2085. bool
  2086. help
  2087. This option must be set if a kernel might be executed on a MIPS16-
  2088. enabled CPU even if MIPS16 is not actually being used. In other
  2089. words, it makes the kernel MIPS16-tolerant.
  2090. config CPU_SUPPORTS_MSA
  2091. bool
  2092. config ARCH_FLATMEM_ENABLE
  2093. def_bool y
  2094. depends on !NUMA && !CPU_LOONGSON2
  2095. config ARCH_DISCONTIGMEM_ENABLE
  2096. bool
  2097. default y if SGI_IP27
  2098. help
  2099. Say Y to support efficient handling of discontiguous physical memory,
  2100. for architectures which are either NUMA (Non-Uniform Memory Access)
  2101. or have huge holes in the physical address space for other reasons.
  2102. See <file:Documentation/vm/numa> for more.
  2103. config ARCH_SPARSEMEM_ENABLE
  2104. bool
  2105. select SPARSEMEM_STATIC
  2106. config NUMA
  2107. bool "NUMA Support"
  2108. depends on SYS_SUPPORTS_NUMA
  2109. help
  2110. Say Y to compile the kernel to support NUMA (Non-Uniform Memory
  2111. Access). This option improves performance on systems with more
  2112. than two nodes; on two node systems it is generally better to
  2113. leave it disabled; on single node systems disable this option
  2114. disabled.
  2115. config SYS_SUPPORTS_NUMA
  2116. bool
  2117. config NODES_SHIFT
  2118. int
  2119. default "6"
  2120. depends on NEED_MULTIPLE_NODES
  2121. config HW_PERF_EVENTS
  2122. bool "Enable hardware performance counter support for perf events"
  2123. depends on PERF_EVENTS && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
  2124. default y
  2125. help
  2126. Enable hardware performance counter support for perf events. If
  2127. disabled, perf events will use software events only.
  2128. source "mm/Kconfig"
  2129. config SMP
  2130. bool "Multi-Processing support"
  2131. depends on SYS_SUPPORTS_SMP
  2132. help
  2133. This enables support for systems with more than one CPU. If you have
  2134. a system with only one CPU, say N. If you have a system with more
  2135. than one CPU, say Y.
  2136. If you say N here, the kernel will run on uni- and multiprocessor
  2137. machines, but will use only one CPU of a multiprocessor machine. If
  2138. you say Y here, the kernel will run on many, but not all,
  2139. uniprocessor machines. On a uniprocessor machine, the kernel
  2140. will run faster if you say N here.
  2141. People using multiprocessor machines who say Y here should also say
  2142. Y to "Enhanced Real Time Clock Support", below.
  2143. See also the SMP-HOWTO available at
  2144. <http://www.tldp.org/docs.html#howto>.
  2145. If you don't know what to do here, say N.
  2146. config SMP_UP
  2147. bool
  2148. config SYS_SUPPORTS_MIPS_CMP
  2149. bool
  2150. config SYS_SUPPORTS_MIPS_CPS
  2151. bool
  2152. config SYS_SUPPORTS_SMP
  2153. bool
  2154. config NR_CPUS_DEFAULT_4
  2155. bool
  2156. config NR_CPUS_DEFAULT_8
  2157. bool
  2158. config NR_CPUS_DEFAULT_16
  2159. bool
  2160. config NR_CPUS_DEFAULT_32
  2161. bool
  2162. config NR_CPUS_DEFAULT_64
  2163. bool
  2164. config NR_CPUS
  2165. int "Maximum number of CPUs (2-256)"
  2166. range 2 256
  2167. depends on SMP
  2168. default "4" if NR_CPUS_DEFAULT_4
  2169. default "8" if NR_CPUS_DEFAULT_8
  2170. default "16" if NR_CPUS_DEFAULT_16
  2171. default "32" if NR_CPUS_DEFAULT_32
  2172. default "64" if NR_CPUS_DEFAULT_64
  2173. help
  2174. This allows you to specify the maximum number of CPUs which this
  2175. kernel will support. The maximum supported value is 32 for 32-bit
  2176. kernel and 64 for 64-bit kernels; the minimum value which makes
  2177. sense is 1 for Qemu (useful only for kernel debugging purposes)
  2178. and 2 for all others.
  2179. This is purely to save memory - each supported CPU adds
  2180. approximately eight kilobytes to the kernel image. For best
  2181. performance should round up your number of processors to the next
  2182. power of two.
  2183. config MIPS_PERF_SHARED_TC_COUNTERS
  2184. bool
  2185. #
  2186. # Timer Interrupt Frequency Configuration
  2187. #
  2188. choice
  2189. prompt "Timer frequency"
  2190. default HZ_250
  2191. help
  2192. Allows the configuration of the timer frequency.
  2193. config HZ_48
  2194. bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
  2195. config HZ_100
  2196. bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
  2197. config HZ_128
  2198. bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
  2199. config HZ_250
  2200. bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
  2201. config HZ_256
  2202. bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
  2203. config HZ_1000
  2204. bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
  2205. config HZ_1024
  2206. bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
  2207. endchoice
  2208. config SYS_SUPPORTS_48HZ
  2209. bool
  2210. config SYS_SUPPORTS_100HZ
  2211. bool
  2212. config SYS_SUPPORTS_128HZ
  2213. bool
  2214. config SYS_SUPPORTS_250HZ
  2215. bool
  2216. config SYS_SUPPORTS_256HZ
  2217. bool
  2218. config SYS_SUPPORTS_1000HZ
  2219. bool
  2220. config SYS_SUPPORTS_1024HZ
  2221. bool
  2222. config SYS_SUPPORTS_ARBIT_HZ
  2223. bool
  2224. default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
  2225. !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
  2226. !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
  2227. !SYS_SUPPORTS_1024HZ
  2228. config HZ
  2229. int
  2230. default 48 if HZ_48
  2231. default 100 if HZ_100
  2232. default 128 if HZ_128
  2233. default 250 if HZ_250
  2234. default 256 if HZ_256
  2235. default 1000 if HZ_1000
  2236. default 1024 if HZ_1024
  2237. config SCHED_HRTICK
  2238. def_bool HIGH_RES_TIMERS
  2239. source "kernel/Kconfig.preempt"
  2240. config KEXEC
  2241. bool "Kexec system call"
  2242. help
  2243. kexec is a system call that implements the ability to shutdown your
  2244. current kernel, and to start another kernel. It is like a reboot
  2245. but it is independent of the system firmware. And like a reboot
  2246. you can start any kernel with it, not just Linux.
  2247. The name comes from the similarity to the exec system call.
  2248. It is an ongoing process to be certain the hardware in a machine
  2249. is properly shutdown, so do not be surprised if this code does not
  2250. initially work for you. As of this writing the exact hardware
  2251. interface is strongly in flux, so no good recommendation can be
  2252. made.
  2253. config CRASH_DUMP
  2254. bool "Kernel crash dumps"
  2255. help
  2256. Generate crash dump after being started by kexec.
  2257. This should be normally only set in special crash dump kernels
  2258. which are loaded in the main kernel with kexec-tools into
  2259. a specially reserved region and then later executed after
  2260. a crash by kdump/kexec. The crash dump kernel must be compiled
  2261. to a memory address not used by the main kernel or firmware using
  2262. PHYSICAL_START.
  2263. config PHYSICAL_START
  2264. hex "Physical address where the kernel is loaded"
  2265. default "0xffffffff84000000" if 64BIT
  2266. default "0x84000000" if 32BIT
  2267. depends on CRASH_DUMP
  2268. help
  2269. This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
  2270. If you plan to use kernel for capturing the crash dump change
  2271. this value to start of the reserved region (the "X" value as
  2272. specified in the "crashkernel=YM@XM" command line boot parameter
  2273. passed to the panic-ed kernel).
  2274. config SECCOMP
  2275. bool "Enable seccomp to safely compute untrusted bytecode"
  2276. depends on PROC_FS
  2277. default y
  2278. help
  2279. This kernel feature is useful for number crunching applications
  2280. that may need to compute untrusted bytecode during their
  2281. execution. By using pipes or other transports made available to
  2282. the process as file descriptors supporting the read/write
  2283. syscalls, it's possible to isolate those applications in
  2284. their own address space using seccomp. Once seccomp is
  2285. enabled via /proc/<pid>/seccomp, it cannot be disabled
  2286. and the task is only allowed to execute a few safe syscalls
  2287. defined by each seccomp mode.
  2288. If unsure, say Y. Only embedded should say N here.
  2289. config MIPS_O32_FP64_SUPPORT
  2290. bool "Support for O32 binaries using 64-bit FP (EXPERIMENTAL)"
  2291. depends on 32BIT || MIPS32_O32
  2292. help
  2293. When this is enabled, the kernel will support use of 64-bit floating
  2294. point registers with binaries using the O32 ABI along with the
  2295. EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
  2296. 32-bit MIPS systems this support is at the cost of increasing the
  2297. size and complexity of the compiled FPU emulator. Thus if you are
  2298. running a MIPS32 system and know that none of your userland binaries
  2299. will require 64-bit floating point, you may wish to reduce the size
  2300. of your kernel & potentially improve FP emulation performance by
  2301. saying N here.
  2302. Although binutils currently supports use of this flag the details
  2303. concerning its effect upon the O32 ABI in userland are still being
  2304. worked on. In order to avoid userland becoming dependant upon current
  2305. behaviour before the details have been finalised, this option should
  2306. be considered experimental and only enabled by those working upon
  2307. said details.
  2308. If unsure, say N.
  2309. config USE_OF
  2310. bool
  2311. select OF
  2312. select OF_EARLY_FLATTREE
  2313. select IRQ_DOMAIN
  2314. config BUILTIN_DTB
  2315. bool
  2316. choice
  2317. prompt "Kernel appended dtb support" if OF
  2318. default MIPS_NO_APPENDED_DTB
  2319. config MIPS_NO_APPENDED_DTB
  2320. bool "None"
  2321. help
  2322. Do not enable appended dtb support.
  2323. config MIPS_RAW_APPENDED_DTB
  2324. bool "vmlinux.bin"
  2325. help
  2326. With this option, the boot code will look for a device tree binary
  2327. DTB) appended to raw vmlinux.bin (without decompressor).
  2328. (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
  2329. This is meant as a backward compatibility convenience for those
  2330. systems with a bootloader that can't be upgraded to accommodate
  2331. the documented boot protocol using a device tree.
  2332. Beware that there is very little in terms of protection against
  2333. this option being confused by leftover garbage in memory that might
  2334. look like a DTB header after a reboot if no actual DTB is appended
  2335. to vmlinux.bin. Do not leave this option active in a production kernel
  2336. if you don't intend to always append a DTB.
  2337. config MIPS_ZBOOT_APPENDED_DTB
  2338. bool "vmlinuz.bin"
  2339. depends on SYS_SUPPORTS_ZBOOT
  2340. help
  2341. With this option, the boot code will look for a device tree binary
  2342. DTB) appended to raw vmlinuz.bin (with decompressor).
  2343. (e.g. cat vmlinuz.bin <filename>.dtb > vmlinuz_w_dtb).
  2344. This is meant as a backward compatibility convenience for those
  2345. systems with a bootloader that can't be upgraded to accommodate
  2346. the documented boot protocol using a device tree.
  2347. Beware that there is very little in terms of protection against
  2348. this option being confused by leftover garbage in memory that might
  2349. look like a DTB header after a reboot if no actual DTB is appended
  2350. to vmlinuz.bin. Do not leave this option active in a production kernel
  2351. if you don't intend to always append a DTB.
  2352. endchoice
  2353. endmenu
  2354. config LOCKDEP_SUPPORT
  2355. bool
  2356. default y
  2357. config STACKTRACE_SUPPORT
  2358. bool
  2359. default y
  2360. config PGTABLE_LEVELS
  2361. int
  2362. default 3 if 64BIT && !PAGE_SIZE_64KB
  2363. default 2
  2364. source "init/Kconfig"
  2365. source "kernel/Kconfig.freezer"
  2366. menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
  2367. config HW_HAS_EISA
  2368. bool
  2369. config HW_HAS_PCI
  2370. bool
  2371. config PCI
  2372. bool "Support for PCI controller"
  2373. depends on HW_HAS_PCI
  2374. select PCI_DOMAINS
  2375. select NO_GENERIC_PCI_IOPORT_MAP
  2376. help
  2377. Find out whether you have a PCI motherboard. PCI is the name of a
  2378. bus system, i.e. the way the CPU talks to the other stuff inside
  2379. your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
  2380. say Y, otherwise N.
  2381. config HT_PCI
  2382. bool "Support for HT-linked PCI"
  2383. default y
  2384. depends on CPU_LOONGSON3
  2385. select PCI
  2386. select PCI_DOMAINS
  2387. help
  2388. Loongson family machines use Hyper-Transport bus for inter-core
  2389. connection and device connection. The PCI bus is a subordinate
  2390. linked at HT. Choose Y for Loongson-3 based machines.
  2391. config PCI_DOMAINS
  2392. bool
  2393. source "drivers/pci/Kconfig"
  2394. source "drivers/pci/pcie/Kconfig"
  2395. #
  2396. # ISA support is now enabled via select. Too many systems still have the one
  2397. # or other ISA chip on the board that users don't know about so don't expect
  2398. # users to choose the right thing ...
  2399. #
  2400. config ISA
  2401. bool
  2402. config EISA
  2403. bool "EISA support"
  2404. depends on HW_HAS_EISA
  2405. select ISA
  2406. select GENERIC_ISA_DMA
  2407. ---help---
  2408. The Extended Industry Standard Architecture (EISA) bus was
  2409. developed as an open alternative to the IBM MicroChannel bus.
  2410. The EISA bus provided some of the features of the IBM MicroChannel
  2411. bus while maintaining backward compatibility with cards made for
  2412. the older ISA bus. The EISA bus saw limited use between 1988 and
  2413. 1995 when it was made obsolete by the PCI bus.
  2414. Say Y here if you are building a kernel for an EISA-based machine.
  2415. Otherwise, say N.
  2416. source "drivers/eisa/Kconfig"
  2417. config TC
  2418. bool "TURBOchannel support"
  2419. depends on MACH_DECSTATION
  2420. help
  2421. TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
  2422. processors. TURBOchannel programming specifications are available
  2423. at:
  2424. <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
  2425. and:
  2426. <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
  2427. Linux driver support status is documented at:
  2428. <http://www.linux-mips.org/wiki/DECstation>
  2429. config MMU
  2430. bool
  2431. default y
  2432. config I8253
  2433. bool
  2434. select CLKSRC_I8253
  2435. select CLKEVT_I8253
  2436. select MIPS_EXTERNAL_TIMER
  2437. config ZONE_DMA
  2438. bool
  2439. config ZONE_DMA32
  2440. bool
  2441. source "drivers/pcmcia/Kconfig"
  2442. source "drivers/pci/hotplug/Kconfig"
  2443. config RAPIDIO
  2444. tristate "RapidIO support"
  2445. depends on PCI
  2446. default n
  2447. help
  2448. If you say Y here, the kernel will include drivers and
  2449. infrastructure code to support RapidIO interconnect devices.
  2450. source "drivers/rapidio/Kconfig"
  2451. endmenu
  2452. menu "Executable file formats"
  2453. source "fs/Kconfig.binfmt"
  2454. config TRAD_SIGNALS
  2455. bool
  2456. config MIPS32_COMPAT
  2457. bool
  2458. config COMPAT
  2459. bool
  2460. config SYSVIPC_COMPAT
  2461. bool
  2462. config MIPS32_O32
  2463. bool "Kernel support for o32 binaries"
  2464. depends on 64BIT
  2465. select ARCH_WANT_OLD_COMPAT_IPC
  2466. select COMPAT
  2467. select MIPS32_COMPAT
  2468. select SYSVIPC_COMPAT if SYSVIPC
  2469. help
  2470. Select this option if you want to run o32 binaries. These are pure
  2471. 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
  2472. existing binaries are in this format.
  2473. If unsure, say Y.
  2474. config MIPS32_N32
  2475. bool "Kernel support for n32 binaries"
  2476. depends on 64BIT
  2477. select COMPAT
  2478. select MIPS32_COMPAT
  2479. select SYSVIPC_COMPAT if SYSVIPC
  2480. help
  2481. Select this option if you want to run n32 binaries. These are
  2482. 64-bit binaries using 32-bit quantities for addressing and certain
  2483. data that would normally be 64-bit. They are used in special
  2484. cases.
  2485. If unsure, say N.
  2486. config BINFMT_ELF32
  2487. bool
  2488. default y if MIPS32_O32 || MIPS32_N32
  2489. endmenu
  2490. menu "Power management options"
  2491. config ARCH_HIBERNATION_POSSIBLE
  2492. def_bool y
  2493. depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
  2494. config ARCH_SUSPEND_POSSIBLE
  2495. def_bool y
  2496. depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
  2497. source "kernel/power/Kconfig"
  2498. endmenu
  2499. config MIPS_EXTERNAL_TIMER
  2500. bool
  2501. menu "CPU Power Management"
  2502. if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
  2503. source "drivers/cpufreq/Kconfig"
  2504. endif
  2505. source "drivers/cpuidle/Kconfig"
  2506. endmenu
  2507. source "net/Kconfig"
  2508. source "drivers/Kconfig"
  2509. source "drivers/firmware/Kconfig"
  2510. source "fs/Kconfig"
  2511. source "arch/mips/Kconfig.debug"
  2512. source "security/Kconfig"
  2513. source "crypto/Kconfig"
  2514. source "lib/Kconfig"
  2515. source "arch/mips/kvm/Kconfig"