Kconfig 22 KB

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  1. #
  2. # For a description of the syntax of this configuration file,
  3. # see Documentation/kbuild/kconfig-language.txt.
  4. #
  5. mainmenu "Blackfin Kernel Configuration"
  6. config MMU
  7. bool
  8. default n
  9. config FPU
  10. bool
  11. default n
  12. config RWSEM_GENERIC_SPINLOCK
  13. bool
  14. default y
  15. config RWSEM_XCHGADD_ALGORITHM
  16. bool
  17. default n
  18. config BLACKFIN
  19. bool
  20. default y
  21. select HAVE_IDE
  22. select HAVE_OPROFILE
  23. config ZONE_DMA
  24. bool
  25. default y
  26. config GENERIC_FIND_NEXT_BIT
  27. bool
  28. default y
  29. config GENERIC_HWEIGHT
  30. bool
  31. default y
  32. config GENERIC_HARDIRQS
  33. bool
  34. default y
  35. config GENERIC_IRQ_PROBE
  36. bool
  37. default y
  38. config GENERIC_GPIO
  39. bool
  40. default y
  41. config FORCE_MAX_ZONEORDER
  42. int
  43. default "14"
  44. config GENERIC_CALIBRATE_DELAY
  45. bool
  46. default y
  47. config HARDWARE_PM
  48. def_bool y
  49. depends on OPROFILE
  50. source "init/Kconfig"
  51. source "kernel/Kconfig.preempt"
  52. menu "Blackfin Processor Options"
  53. comment "Processor and Board Settings"
  54. choice
  55. prompt "CPU"
  56. default BF533
  57. config BF522
  58. bool "BF522"
  59. help
  60. BF522 Processor Support.
  61. config BF523
  62. bool "BF523"
  63. help
  64. BF523 Processor Support.
  65. config BF524
  66. bool "BF524"
  67. help
  68. BF524 Processor Support.
  69. config BF525
  70. bool "BF525"
  71. help
  72. BF525 Processor Support.
  73. config BF526
  74. bool "BF526"
  75. help
  76. BF526 Processor Support.
  77. config BF527
  78. bool "BF527"
  79. help
  80. BF527 Processor Support.
  81. config BF531
  82. bool "BF531"
  83. help
  84. BF531 Processor Support.
  85. config BF532
  86. bool "BF532"
  87. help
  88. BF532 Processor Support.
  89. config BF533
  90. bool "BF533"
  91. help
  92. BF533 Processor Support.
  93. config BF534
  94. bool "BF534"
  95. help
  96. BF534 Processor Support.
  97. config BF536
  98. bool "BF536"
  99. help
  100. BF536 Processor Support.
  101. config BF537
  102. bool "BF537"
  103. help
  104. BF537 Processor Support.
  105. config BF542
  106. bool "BF542"
  107. help
  108. BF542 Processor Support.
  109. config BF544
  110. bool "BF544"
  111. help
  112. BF544 Processor Support.
  113. config BF547
  114. bool "BF547"
  115. help
  116. BF547 Processor Support.
  117. config BF548
  118. bool "BF548"
  119. help
  120. BF548 Processor Support.
  121. config BF549
  122. bool "BF549"
  123. help
  124. BF549 Processor Support.
  125. config BF561
  126. bool "BF561"
  127. help
  128. Not Supported Yet - Work in progress - BF561 Processor Support.
  129. endchoice
  130. choice
  131. prompt "Silicon Rev"
  132. default BF_REV_0_1 if BF527
  133. default BF_REV_0_2 if BF537
  134. default BF_REV_0_3 if BF533
  135. default BF_REV_0_0 if BF549
  136. config BF_REV_0_0
  137. bool "0.0"
  138. depends on (BF52x || BF54x)
  139. config BF_REV_0_1
  140. bool "0.1"
  141. depends on (BF52x || BF54x)
  142. config BF_REV_0_2
  143. bool "0.2"
  144. depends on (BF537 || BF536 || BF534)
  145. config BF_REV_0_3
  146. bool "0.3"
  147. depends on (BF561 || BF537 || BF536 || BF534 || BF533 || BF532 || BF531)
  148. config BF_REV_0_4
  149. bool "0.4"
  150. depends on (BF561 || BF533 || BF532 || BF531)
  151. config BF_REV_0_5
  152. bool "0.5"
  153. depends on (BF561 || BF533 || BF532 || BF531)
  154. config BF_REV_ANY
  155. bool "any"
  156. config BF_REV_NONE
  157. bool "none"
  158. endchoice
  159. config BF52x
  160. bool
  161. depends on (BF522 || BF523 || BF524 || BF525 || BF526 || BF527)
  162. default y
  163. config BF53x
  164. bool
  165. depends on (BF531 || BF532 || BF533 || BF534 || BF536 || BF537)
  166. default y
  167. config BF54x
  168. bool
  169. depends on (BF542 || BF544 || BF547 || BF548 || BF549)
  170. default y
  171. config MEM_GENERIC_BOARD
  172. bool
  173. depends on GENERIC_BOARD
  174. default y
  175. config MEM_MT48LC64M4A2FB_7E
  176. bool
  177. depends on (BFIN533_STAMP)
  178. default y
  179. config MEM_MT48LC16M16A2TG_75
  180. bool
  181. depends on (BFIN533_EZKIT || BFIN561_EZKIT \
  182. || BFIN533_BLUETECHNIX_CM || BFIN537_BLUETECHNIX_CM \
  183. || H8606_HVSISTEMAS)
  184. default y
  185. config MEM_MT48LC32M8A2_75
  186. bool
  187. depends on (BFIN537_STAMP || PNAV10)
  188. default y
  189. config MEM_MT48LC8M32B2B5_7
  190. bool
  191. depends on (BFIN561_BLUETECHNIX_CM)
  192. default y
  193. config MEM_MT48LC32M16A2TG_75
  194. bool
  195. depends on (BFIN527_EZKIT || BFIN532_IP0X)
  196. default y
  197. source "arch/blackfin/mach-bf527/Kconfig"
  198. source "arch/blackfin/mach-bf533/Kconfig"
  199. source "arch/blackfin/mach-bf561/Kconfig"
  200. source "arch/blackfin/mach-bf537/Kconfig"
  201. source "arch/blackfin/mach-bf548/Kconfig"
  202. menu "Board customizations"
  203. config CMDLINE_BOOL
  204. bool "Default bootloader kernel arguments"
  205. config CMDLINE
  206. string "Initial kernel command string"
  207. depends on CMDLINE_BOOL
  208. default "console=ttyBF0,57600"
  209. help
  210. If you don't have a boot loader capable of passing a command line string
  211. to the kernel, you may specify one here. As a minimum, you should specify
  212. the memory size and the root device (e.g., mem=8M, root=/dev/nfs).
  213. config BOOT_LOAD
  214. hex "Kernel load address for booting"
  215. default "0x1000"
  216. range 0x1000 0x20000000
  217. help
  218. This option allows you to set the load address of the kernel.
  219. This can be useful if you are on a board which has a small amount
  220. of memory or you wish to reserve some memory at the beginning of
  221. the address space.
  222. Note that you need to keep this value above 4k (0x1000) as this
  223. memory region is used to capture NULL pointer references as well
  224. as some core kernel functions.
  225. comment "Clock/PLL Setup"
  226. config CLKIN_HZ
  227. int "Frequency of the crystal on the board in Hz"
  228. default "11059200" if BFIN533_STAMP
  229. default "27000000" if BFIN533_EZKIT
  230. default "25000000" if (BFIN537_STAMP || BFIN527_EZKIT || H8606_HVSISTEMAS)
  231. default "30000000" if BFIN561_EZKIT
  232. default "24576000" if PNAV10
  233. default "10000000" if BFIN532_IP0X
  234. help
  235. The frequency of CLKIN crystal oscillator on the board in Hz.
  236. Warning: This value should match the crystal on the board. Otherwise,
  237. peripherals won't work properly.
  238. config BFIN_KERNEL_CLOCK
  239. bool "Re-program Clocks while Kernel boots?"
  240. default n
  241. help
  242. This option decides if kernel clocks are re-programed from the
  243. bootloader settings. If the clocks are not set, the SDRAM settings
  244. are also not changed, and the Bootloader does 100% of the hardware
  245. configuration.
  246. config MEM_SIZE
  247. int "SDRAM Memory Size in MBytes"
  248. depends on BFIN_KERNEL_CLOCK
  249. default 64
  250. config MEM_ADD_WIDTH
  251. int "Memory Address Width"
  252. depends on BFIN_KERNEL_CLOCK
  253. depends on (!BF54x)
  254. range 8 11
  255. default 9 if BFIN533_EZKIT
  256. default 9 if BFIN561_EZKIT
  257. default 9 if H8606_HVSISTEMAS
  258. default 10 if BFIN527_EZKIT
  259. default 10 if BFIN537_STAMP
  260. default 11 if BFIN533_STAMP
  261. default 10 if PNAV10
  262. default 10 if BFIN532_IP0X
  263. config PLL_BYPASS
  264. bool "Bypass PLL"
  265. depends on BFIN_KERNEL_CLOCK
  266. default n
  267. config CLKIN_HALF
  268. bool "Half Clock In"
  269. depends on BFIN_KERNEL_CLOCK && (! PLL_BYPASS)
  270. default n
  271. help
  272. If this is set the clock will be divided by 2, before it goes to the PLL.
  273. config VCO_MULT
  274. int "VCO Multiplier"
  275. depends on BFIN_KERNEL_CLOCK && (! PLL_BYPASS)
  276. range 1 64
  277. default "22" if BFIN533_EZKIT
  278. default "45" if BFIN533_STAMP
  279. default "20" if (BFIN537_STAMP || BFIN527_EZKIT || BFIN548_EZKIT || BFIN548_BLUETECHNIX_CM)
  280. default "22" if BFIN533_BLUETECHNIX_CM
  281. default "20" if BFIN537_BLUETECHNIX_CM
  282. default "20" if BFIN561_BLUETECHNIX_CM
  283. default "20" if BFIN561_EZKIT
  284. default "16" if H8606_HVSISTEMAS
  285. help
  286. This controls the frequency of the on-chip PLL. This can be between 1 and 64.
  287. PLL Frequency = (Crystal Frequency) * (this setting)
  288. choice
  289. prompt "Core Clock Divider"
  290. depends on BFIN_KERNEL_CLOCK
  291. default CCLK_DIV_1
  292. help
  293. This sets the frequency of the core. It can be 1, 2, 4 or 8
  294. Core Frequency = (PLL frequency) / (this setting)
  295. config CCLK_DIV_1
  296. bool "1"
  297. config CCLK_DIV_2
  298. bool "2"
  299. config CCLK_DIV_4
  300. bool "4"
  301. config CCLK_DIV_8
  302. bool "8"
  303. endchoice
  304. config SCLK_DIV
  305. int "System Clock Divider"
  306. depends on BFIN_KERNEL_CLOCK
  307. range 1 15
  308. default 5
  309. help
  310. This sets the frequency of the system clock (including SDRAM or DDR).
  311. This can be between 1 and 15
  312. System Clock = (PLL frequency) / (this setting)
  313. config MAX_MEM_SIZE
  314. int "Max SDRAM Memory Size in MBytes"
  315. depends on !BFIN_KERNEL_CLOCK && !MPU
  316. default 512
  317. help
  318. This is the max memory size that the kernel will create CPLB
  319. tables for. Your system will not be able to handle any more.
  320. choice
  321. prompt "DDR SDRAM Chip Type"
  322. depends on BFIN_KERNEL_CLOCK
  323. depends on BF54x
  324. default MEM_MT46V32M16_5B
  325. config MEM_MT46V32M16_6T
  326. bool "MT46V32M16_6T"
  327. config MEM_MT46V32M16_5B
  328. bool "MT46V32M16_5B"
  329. endchoice
  330. #
  331. # Max & Min Speeds for various Chips
  332. #
  333. config MAX_VCO_HZ
  334. int
  335. default 600000000 if BF522
  336. default 400000000 if BF523
  337. default 400000000 if BF524
  338. default 600000000 if BF525
  339. default 400000000 if BF526
  340. default 600000000 if BF527
  341. default 400000000 if BF531
  342. default 400000000 if BF532
  343. default 750000000 if BF533
  344. default 500000000 if BF534
  345. default 400000000 if BF536
  346. default 600000000 if BF537
  347. default 533333333 if BF538
  348. default 533333333 if BF539
  349. default 600000000 if BF542
  350. default 533333333 if BF544
  351. default 600000000 if BF547
  352. default 600000000 if BF548
  353. default 533333333 if BF549
  354. default 600000000 if BF561
  355. config MIN_VCO_HZ
  356. int
  357. default 50000000
  358. config MAX_SCLK_HZ
  359. int
  360. default 133333333
  361. config MIN_SCLK_HZ
  362. int
  363. default 27000000
  364. comment "Kernel Timer/Scheduler"
  365. source kernel/Kconfig.hz
  366. config GENERIC_TIME
  367. bool "Generic time"
  368. default y
  369. config GENERIC_CLOCKEVENTS
  370. bool "Generic clock events"
  371. depends on GENERIC_TIME
  372. default y
  373. config CYCLES_CLOCKSOURCE
  374. bool "Use 'CYCLES' as a clocksource (EXPERIMENTAL)"
  375. depends on EXPERIMENTAL
  376. depends on GENERIC_CLOCKEVENTS
  377. depends on !BFIN_SCRATCH_REG_CYCLES
  378. default n
  379. help
  380. If you say Y here, you will enable support for using the 'cycles'
  381. registers as a clock source. Doing so means you will be unable to
  382. safely write to the 'cycles' register during runtime. You will
  383. still be able to read it (such as for performance monitoring), but
  384. writing the registers will most likely crash the kernel.
  385. source kernel/time/Kconfig
  386. comment "Memory Setup"
  387. comment "Misc"
  388. choice
  389. prompt "Blackfin Exception Scratch Register"
  390. default BFIN_SCRATCH_REG_RETN
  391. help
  392. Select the resource to reserve for the Exception handler:
  393. - RETN: Non-Maskable Interrupt (NMI)
  394. - RETE: Exception Return (JTAG/ICE)
  395. - CYCLES: Performance counter
  396. If you are unsure, please select "RETN".
  397. config BFIN_SCRATCH_REG_RETN
  398. bool "RETN"
  399. help
  400. Use the RETN register in the Blackfin exception handler
  401. as a stack scratch register. This means you cannot
  402. safely use NMI on the Blackfin while running Linux, but
  403. you can debug the system with a JTAG ICE and use the
  404. CYCLES performance registers.
  405. If you are unsure, please select "RETN".
  406. config BFIN_SCRATCH_REG_RETE
  407. bool "RETE"
  408. help
  409. Use the RETE register in the Blackfin exception handler
  410. as a stack scratch register. This means you cannot
  411. safely use a JTAG ICE while debugging a Blackfin board,
  412. but you can safely use the CYCLES performance registers
  413. and the NMI.
  414. If you are unsure, please select "RETN".
  415. config BFIN_SCRATCH_REG_CYCLES
  416. bool "CYCLES"
  417. help
  418. Use the CYCLES register in the Blackfin exception handler
  419. as a stack scratch register. This means you cannot
  420. safely use the CYCLES performance registers on a Blackfin
  421. board at anytime, but you can debug the system with a JTAG
  422. ICE and use the NMI.
  423. If you are unsure, please select "RETN".
  424. endchoice
  425. endmenu
  426. menu "Blackfin Kernel Optimizations"
  427. comment "Memory Optimizations"
  428. config I_ENTRY_L1
  429. bool "Locate interrupt entry code in L1 Memory"
  430. default y
  431. help
  432. If enabled, interrupt entry code (STORE/RESTORE CONTEXT) is linked
  433. into L1 instruction memory. (less latency)
  434. config EXCPT_IRQ_SYSC_L1
  435. bool "Locate entire ASM lowlevel exception / interrupt - Syscall and CPLB handler code in L1 Memory"
  436. default y
  437. help
  438. If enabled, the entire ASM lowlevel exception and interrupt entry code
  439. (STORE/RESTORE CONTEXT) is linked into L1 instruction memory.
  440. (less latency)
  441. config DO_IRQ_L1
  442. bool "Locate frequently called do_irq dispatcher function in L1 Memory"
  443. default y
  444. help
  445. If enabled, the frequently called do_irq dispatcher function is linked
  446. into L1 instruction memory. (less latency)
  447. config CORE_TIMER_IRQ_L1
  448. bool "Locate frequently called timer_interrupt() function in L1 Memory"
  449. default y
  450. help
  451. If enabled, the frequently called timer_interrupt() function is linked
  452. into L1 instruction memory. (less latency)
  453. config IDLE_L1
  454. bool "Locate frequently idle function in L1 Memory"
  455. default y
  456. help
  457. If enabled, the frequently called idle function is linked
  458. into L1 instruction memory. (less latency)
  459. config SCHEDULE_L1
  460. bool "Locate kernel schedule function in L1 Memory"
  461. default y
  462. help
  463. If enabled, the frequently called kernel schedule is linked
  464. into L1 instruction memory. (less latency)
  465. config ARITHMETIC_OPS_L1
  466. bool "Locate kernel owned arithmetic functions in L1 Memory"
  467. default y
  468. help
  469. If enabled, arithmetic functions are linked
  470. into L1 instruction memory. (less latency)
  471. config ACCESS_OK_L1
  472. bool "Locate access_ok function in L1 Memory"
  473. default y
  474. help
  475. If enabled, the access_ok function is linked
  476. into L1 instruction memory. (less latency)
  477. config MEMSET_L1
  478. bool "Locate memset function in L1 Memory"
  479. default y
  480. help
  481. If enabled, the memset function is linked
  482. into L1 instruction memory. (less latency)
  483. config MEMCPY_L1
  484. bool "Locate memcpy function in L1 Memory"
  485. default y
  486. help
  487. If enabled, the memcpy function is linked
  488. into L1 instruction memory. (less latency)
  489. config SYS_BFIN_SPINLOCK_L1
  490. bool "Locate sys_bfin_spinlock function in L1 Memory"
  491. default y
  492. help
  493. If enabled, sys_bfin_spinlock function is linked
  494. into L1 instruction memory. (less latency)
  495. config IP_CHECKSUM_L1
  496. bool "Locate IP Checksum function in L1 Memory"
  497. default n
  498. help
  499. If enabled, the IP Checksum function is linked
  500. into L1 instruction memory. (less latency)
  501. config CACHELINE_ALIGNED_L1
  502. bool "Locate cacheline_aligned data to L1 Data Memory"
  503. default y if !BF54x
  504. default n if BF54x
  505. depends on !BF531
  506. help
  507. If enabled, cacheline_anligned data is linked
  508. into L1 data memory. (less latency)
  509. config SYSCALL_TAB_L1
  510. bool "Locate Syscall Table L1 Data Memory"
  511. default n
  512. depends on !BF531
  513. help
  514. If enabled, the Syscall LUT is linked
  515. into L1 data memory. (less latency)
  516. config CPLB_SWITCH_TAB_L1
  517. bool "Locate CPLB Switch Tables L1 Data Memory"
  518. default n
  519. depends on !BF531
  520. help
  521. If enabled, the CPLB Switch Tables are linked
  522. into L1 data memory. (less latency)
  523. endmenu
  524. choice
  525. prompt "Kernel executes from"
  526. help
  527. Choose the memory type that the kernel will be running in.
  528. config RAMKERNEL
  529. bool "RAM"
  530. help
  531. The kernel will be resident in RAM when running.
  532. config ROMKERNEL
  533. bool "ROM"
  534. help
  535. The kernel will be resident in FLASH/ROM when running.
  536. endchoice
  537. source "mm/Kconfig"
  538. config BFIN_GPTIMERS
  539. tristate "Enable Blackfin General Purpose Timers API"
  540. default n
  541. help
  542. Enable support for the General Purpose Timers API. If you
  543. are unsure, say N.
  544. To compile this driver as a module, choose M here: the module
  545. will be called gptimers.ko.
  546. config BFIN_DMA_5XX
  547. bool "Enable DMA Support"
  548. depends on (BF52x || BF53x || BF561 || BF54x)
  549. default y
  550. help
  551. DMA driver for BF5xx.
  552. choice
  553. prompt "Uncached SDRAM region"
  554. default DMA_UNCACHED_1M
  555. depends on BFIN_DMA_5XX
  556. config DMA_UNCACHED_4M
  557. bool "Enable 4M DMA region"
  558. config DMA_UNCACHED_2M
  559. bool "Enable 2M DMA region"
  560. config DMA_UNCACHED_1M
  561. bool "Enable 1M DMA region"
  562. config DMA_UNCACHED_NONE
  563. bool "Disable DMA region"
  564. endchoice
  565. comment "Cache Support"
  566. config BFIN_ICACHE
  567. bool "Enable ICACHE"
  568. config BFIN_DCACHE
  569. bool "Enable DCACHE"
  570. config BFIN_DCACHE_BANKA
  571. bool "Enable only 16k BankA DCACHE - BankB is SRAM"
  572. depends on BFIN_DCACHE && !BF531
  573. default n
  574. config BFIN_ICACHE_LOCK
  575. bool "Enable Instruction Cache Locking"
  576. choice
  577. prompt "Policy"
  578. depends on BFIN_DCACHE
  579. default BFIN_WB
  580. config BFIN_WB
  581. bool "Write back"
  582. help
  583. Write Back Policy:
  584. Cached data will be written back to SDRAM only when needed.
  585. This can give a nice increase in performance, but beware of
  586. broken drivers that do not properly invalidate/flush their
  587. cache.
  588. Write Through Policy:
  589. Cached data will always be written back to SDRAM when the
  590. cache is updated. This is a completely safe setting, but
  591. performance is worse than Write Back.
  592. If you are unsure of the options and you want to be safe,
  593. then go with Write Through.
  594. config BFIN_WT
  595. bool "Write through"
  596. help
  597. Write Back Policy:
  598. Cached data will be written back to SDRAM only when needed.
  599. This can give a nice increase in performance, but beware of
  600. broken drivers that do not properly invalidate/flush their
  601. cache.
  602. Write Through Policy:
  603. Cached data will always be written back to SDRAM when the
  604. cache is updated. This is a completely safe setting, but
  605. performance is worse than Write Back.
  606. If you are unsure of the options and you want to be safe,
  607. then go with Write Through.
  608. endchoice
  609. config L1_MAX_PIECE
  610. int "Set the max L1 SRAM pieces"
  611. default 16
  612. help
  613. Set the max memory pieces for the L1 SRAM allocation algorithm.
  614. Min value is 16. Max value is 1024.
  615. config MPU
  616. bool "Enable the memory protection unit (EXPERIMENTAL)"
  617. default n
  618. help
  619. Use the processor's MPU to protect applications from accessing
  620. memory they do not own. This comes at a performance penalty
  621. and is recommended only for debugging.
  622. comment "Asynchonous Memory Configuration"
  623. menu "EBIU_AMGCTL Global Control"
  624. config C_AMCKEN
  625. bool "Enable CLKOUT"
  626. default y
  627. config C_CDPRIO
  628. bool "DMA has priority over core for ext. accesses"
  629. default n
  630. config C_B0PEN
  631. depends on BF561
  632. bool "Bank 0 16 bit packing enable"
  633. default y
  634. config C_B1PEN
  635. depends on BF561
  636. bool "Bank 1 16 bit packing enable"
  637. default y
  638. config C_B2PEN
  639. depends on BF561
  640. bool "Bank 2 16 bit packing enable"
  641. default y
  642. config C_B3PEN
  643. depends on BF561
  644. bool "Bank 3 16 bit packing enable"
  645. default n
  646. choice
  647. prompt"Enable Asynchonous Memory Banks"
  648. default C_AMBEN_ALL
  649. config C_AMBEN
  650. bool "Disable All Banks"
  651. config C_AMBEN_B0
  652. bool "Enable Bank 0"
  653. config C_AMBEN_B0_B1
  654. bool "Enable Bank 0 & 1"
  655. config C_AMBEN_B0_B1_B2
  656. bool "Enable Bank 0 & 1 & 2"
  657. config C_AMBEN_ALL
  658. bool "Enable All Banks"
  659. endchoice
  660. endmenu
  661. menu "EBIU_AMBCTL Control"
  662. config BANK_0
  663. hex "Bank 0"
  664. default 0x7BB0
  665. config BANK_1
  666. hex "Bank 1"
  667. default 0x7BB0
  668. default 0x5558 if BF54x
  669. config BANK_2
  670. hex "Bank 2"
  671. default 0x7BB0
  672. config BANK_3
  673. hex "Bank 3"
  674. default 0x99B3
  675. endmenu
  676. config EBIU_MBSCTLVAL
  677. hex "EBIU Bank Select Control Register"
  678. depends on BF54x
  679. default 0
  680. config EBIU_MODEVAL
  681. hex "Flash Memory Mode Control Register"
  682. depends on BF54x
  683. default 1
  684. config EBIU_FCTLVAL
  685. hex "Flash Memory Bank Control Register"
  686. depends on BF54x
  687. default 6
  688. endmenu
  689. #############################################################################
  690. menu "Bus options (PCI, PCMCIA, EISA, MCA, ISA)"
  691. config PCI
  692. bool "PCI support"
  693. help
  694. Support for PCI bus.
  695. source "drivers/pci/Kconfig"
  696. config HOTPLUG
  697. bool "Support for hot-pluggable device"
  698. help
  699. Say Y here if you want to plug devices into your computer while
  700. the system is running, and be able to use them quickly. In many
  701. cases, the devices can likewise be unplugged at any time too.
  702. One well known example of this is PCMCIA- or PC-cards, credit-card
  703. size devices such as network cards, modems or hard drives which are
  704. plugged into slots found on all modern laptop computers. Another
  705. example, used on modern desktops as well as laptops, is USB.
  706. Enable HOTPLUG and KMOD, and build a modular kernel. Get agent
  707. software (at <http://linux-hotplug.sourceforge.net/>) and install it.
  708. Then your kernel will automatically call out to a user mode "policy
  709. agent" (/sbin/hotplug) to load modules and set up software needed
  710. to use devices as you hotplug them.
  711. source "drivers/pcmcia/Kconfig"
  712. source "drivers/pci/hotplug/Kconfig"
  713. endmenu
  714. menu "Executable file formats"
  715. source "fs/Kconfig.binfmt"
  716. endmenu
  717. menu "Power management options"
  718. source "kernel/power/Kconfig"
  719. config ARCH_SUSPEND_POSSIBLE
  720. def_bool y
  721. depends on !SMP
  722. choice
  723. prompt "Default Power Saving Mode"
  724. depends on PM
  725. default PM_BFIN_SLEEP_DEEPER
  726. config PM_BFIN_SLEEP_DEEPER
  727. bool "Sleep Deeper"
  728. help
  729. Sleep "Deeper" Mode (High Power Savings) - This mode reduces dynamic
  730. power dissipation by disabling the clock to the processor core (CCLK).
  731. Furthermore, Standby sets the internal power supply voltage (VDDINT)
  732. to 0.85 V to provide the greatest power savings, while preserving the
  733. processor state.
  734. The PLL and system clock (SCLK) continue to operate at a very low
  735. frequency of about 3.3 MHz. To preserve data integrity in the SDRAM,
  736. the SDRAM is put into Self Refresh Mode. Typically an external event
  737. such as GPIO interrupt or RTC activity wakes up the processor.
  738. Various Peripherals such as UART, SPORT, PPI may not function as
  739. normal during Sleep Deeper, due to the reduced SCLK frequency.
  740. When in the sleep mode, system DMA access to L1 memory is not supported.
  741. config PM_BFIN_SLEEP
  742. bool "Sleep"
  743. help
  744. Sleep Mode (High Power Savings) - The sleep mode reduces power
  745. dissipation by disabling the clock to the processor core (CCLK).
  746. The PLL and system clock (SCLK), however, continue to operate in
  747. this mode. Typically an external event or RTC activity will wake
  748. up the processor. When in the sleep mode,
  749. system DMA access to L1 memory is not supported.
  750. endchoice
  751. config PM_WAKEUP_BY_GPIO
  752. bool "Cause Wakeup Event by GPIO"
  753. config PM_WAKEUP_GPIO_NUMBER
  754. int "Wakeup GPIO number"
  755. range 0 47
  756. depends on PM_WAKEUP_BY_GPIO
  757. default 2 if BFIN537_STAMP
  758. choice
  759. prompt "GPIO Polarity"
  760. depends on PM_WAKEUP_BY_GPIO
  761. default PM_WAKEUP_GPIO_POLAR_H
  762. config PM_WAKEUP_GPIO_POLAR_H
  763. bool "Active High"
  764. config PM_WAKEUP_GPIO_POLAR_L
  765. bool "Active Low"
  766. config PM_WAKEUP_GPIO_POLAR_EDGE_F
  767. bool "Falling EDGE"
  768. config PM_WAKEUP_GPIO_POLAR_EDGE_R
  769. bool "Rising EDGE"
  770. config PM_WAKEUP_GPIO_POLAR_EDGE_B
  771. bool "Both EDGE"
  772. endchoice
  773. endmenu
  774. menu "CPU Frequency scaling"
  775. source "drivers/cpufreq/Kconfig"
  776. config CPU_VOLTAGE
  777. bool "CPU Voltage scaling"
  778. depends on EXPERIMENTAL
  779. depends on CPU_FREQ
  780. default n
  781. help
  782. Say Y here if you want CPU voltage scaling according to the CPU frequency.
  783. This option violates the PLL BYPASS recommendation in the Blackfin Processor
  784. manuals. There is a theoretical risk that during VDDINT transitions
  785. the PLL may unlock.
  786. endmenu
  787. source "net/Kconfig"
  788. source "drivers/Kconfig"
  789. source "fs/Kconfig"
  790. source "arch/blackfin/Kconfig.debug"
  791. source "security/Kconfig"
  792. source "crypto/Kconfig"
  793. source "lib/Kconfig"