arch/blackfin/Kconfig

   1 #
   2 # For a description of the syntax of this configuration file,
   3 # see Documentation/kbuild/kconfig-language.txt.
   4 #
   5
   6 mainmenu "uClinux/Blackfin (w/o MMU) Kernel Configuration"
   7
   8 config MMU
   9         bool
  10         default n
  11
  12 config FPU
  13         bool
  14         default n
  15
  16 config RWSEM_GENERIC_SPINLOCK
  17         bool
  18         default y
  19
  20 config RWSEM_XCHGADD_ALGORITHM
  21         bool
  22         default n
  23
  24 config BLACKFIN
  25         bool
  26         default y
  27
  28 config BFIN
  29         bool
  30         default y
  31
  32 config SEMAPHORE_SLEEPERS
  33         bool
  34         default y
  35
  36 config GENERIC_FIND_NEXT_BIT
  37         bool
  38         default y
  39
  40 config GENERIC_HWEIGHT
  41         bool
  42         default y
  43
  44 config GENERIC_HARDIRQS
  45         bool
  46         default y
  47
  48 config GENERIC_IRQ_PROBE
  49         bool
  50         default y
  51
  52 config GENERIC_TIME
  53         bool
  54         default n
  55
  56 config GENERIC_CALIBRATE_DELAY
  57         bool
  58         default y
  59
  60 config FORCE_MAX_ZONEORDER
  61         int
  62         default "14"
  63
  64 config GENERIC_CALIBRATE_DELAY
  65         bool
  66         default y
  67
  68 config IRQCHIP_DEMUX_GPIO
  69         bool
  70         default y
  71
  72 source "init/Kconfig"
  73 source "kernel/Kconfig.preempt"
  74
  75 menu "Blackfin Processor Options"
  76
  77 comment "Processor and Board Settings"
  78
  79 choice
  80         prompt "CPU"
  81         default BF533
  82
  83 config BF531
  84         bool "BF531"
  85         help
  86           BF531 Processor Support.
  87
  88 config BF532
  89         bool "BF532"
  90         help
  91           BF532 Processor Support.
  92
  93 config BF533
  94         bool "BF533"
  95         help
  96           BF533 Processor Support.
  97
  98 config BF534
  99         bool "BF534"
 100         help
 101           BF534 Processor Support.
 102
 103 config BF536
 104         bool "BF536"
 105         help
 106           BF536 Processor Support.
 107
 108 config BF537
 109         bool "BF537"
 110         help
 111           BF537 Processor Support.
 112
 113 config BF561
 114         bool "BF561"
 115         help
 116           Not Supported Yet - Work in progress - BF561 Processor Support.
 117
 118 endchoice
 119
 120 choice
 121         prompt "Silicon Rev"
 122         default BF_REV_0_2 if BF537
 123         default BF_REV_0_3 if BF533
 124
 125 config BF_REV_0_2
 126         bool "0.2"
 127         depends on (BF537 || BF536 || BF534)
 128
 129 config BF_REV_0_3
 130         bool "0.3"
 131         depends on (BF561 || BF537 || BF536 || BF534 || BF533 || BF532 || BF531)
 132
 133 config BF_REV_0_4
 134         bool "0.4"
 135         depends on (BF561 || BF533 || BF532 || BF531)
 136
 137 config BF_REV_0_5
 138         bool "0.5"
 139         depends on (BF561 || BF533 || BF532 || BF531)
 140
 141 endchoice
 142
 143 config BFIN_DUAL_CORE
 144         bool
 145         depends on (BF561)
 146         default y
 147
 148 config BFIN_SINGLE_CORE
 149         bool
 150         depends on !BFIN_DUAL_CORE
 151         default y
 152
 153 choice
 154         prompt "System type"
 155         default BFIN533_STAMP
 156         help
 157           Do NOT change the board here.  Please use the top level
 158           configuration to ensure that all the other settings are
 159           correct.
 160
 161 config BFIN533_EZKIT
 162         bool "BF533-EZKIT"
 163         depends on (BF533 || BF532 || BF531)
 164         help
 165           BF533-EZKIT-LITE board Support.
 166
 167 config  BFIN533_STAMP
 168         bool "BF533-STAMP"
 169         depends on (BF533 || BF532 || BF531)
 170         help
 171           BF533-STAMP board Support.
 172
 173 config BFIN537_STAMP
 174         bool "BF537-STAMP"
 175         depends on (BF537 || BF536 || BF534)
 176         help
 177           BF537-STAMP board Support.
 178
 179 config BFIN533_BLUETECHNIX_CM
 180         bool "Bluetechnix CM-BF533"
 181         depends on (BF533)
 182         help
 183           CM-BF533 support for EVAL- and DEV-Board.
 184
 185 config BFIN537_BLUETECHNIX_CM
 186         bool "Bluetechnix CM-BF537"
 187         depends on (BF537)
 188         help
 189           CM-BF537 support for EVAL- and DEV-Board.
 190
 191 config BFIN561_BLUETECHNIX_CM
 192         bool "BF561-CM"
 193         depends on (BF561)
 194         help
 195           CM-BF561 support for EVAL- and DEV-Board.
 196
 197 config BFIN561_EZKIT
 198         bool "BF561-EZKIT"
 199         depends on (BF561)
 200         help
 201           BF561-EZKIT-LITE board Support.
 202
 203 config PNAV10
 204         bool "PNAV 1.0 board"
 205         depends on (BF537)
 206         help
 207           PNAV 1.0 board Support.
 208
 209 config GENERIC_BOARD
 210         bool "Custom"
 211         depends on (BF537 || BF536 \
 212                 || BF534 || BF561 || BF535 || BF533 || BF532 || BF531)
 213         help
 214           GENERIC or Custom board Support.
 215
 216 endchoice
 217
 218 config MEM_GENERIC_BOARD
 219         bool
 220         depends on GENERIC_BOARD
 221         default y
 222
 223 config MEM_MT48LC64M4A2FB_7E
 224         bool
 225         depends on (BFIN533_STAMP)
 226         default y
 227
 228 config MEM_MT48LC16M16A2TG_75
 229         bool
 230         depends on (BFIN533_EZKIT || BFIN561_EZKIT \
 231                 || BFIN533_BLUETECHNIX_CM || BFIN537_BLUETECHNIX_CM)
 232         default y
 233
 234 config MEM_MT48LC32M8A2_75
 235         bool
 236         depends on (BFIN537_STAMP || PNAV10)
 237         default y
 238
 239 config MEM_MT48LC8M32B2B5_7
 240         bool
 241         depends on (BFIN561_BLUETECHNIX_CM)
 242         default y
 243
 244 config BFIN_SHARED_FLASH_ENET
 245         bool
 246         depends on (BFIN533_STAMP)
 247         default y
 248
 249 source "arch/blackfin/mach-bf533/Kconfig"
 250 source "arch/blackfin/mach-bf561/Kconfig"
 251 source "arch/blackfin/mach-bf537/Kconfig"
 252
 253 menu "Board customizations"
 254
 255 config CMDLINE_BOOL
 256         bool "Default bootloader kernel arguments"
 257
 258 config CMDLINE
 259         string "Initial kernel command string"
 260         depends on CMDLINE_BOOL
 261         default "console=ttyBF0,57600"
 262         help
 263           If you don't have a boot loader capable of passing a command line string
 264           to the kernel, you may specify one here. As a minimum, you should specify
 265           the memory size and the root device (e.g., mem=8M, root=/dev/nfs).
 266
 267 comment "Board Setup"
 268
 269 config CLKIN_HZ
 270         int "Crystal Frequency in Hz"
 271         default "11059200" if BFIN533_STAMP
 272         default "27000000" if BFIN533_EZKIT
 273         default "25000000" if BFIN537_STAMP
 274         default "30000000" if BFIN561_EZKIT
 275         default "24576000" if PNAV10
 276         help
 277           The frequency of CLKIN crystal oscillator on the board in Hz.
 278
 279 config MEM_SIZE
 280         int "SDRAM Memory Size in MBytes"
 281         default  32 if BFIN533_EZKIT
 282         default  64 if BFIN537_STAMP
 283         default  64 if BFIN561_EZKIT
 284         default 128 if BFIN533_STAMP
 285         default  64 if PNAV10
 286
 287 config MEM_ADD_WIDTH
 288         int "SDRAM Memory Address Width"
 289         default  9 if BFIN533_EZKIT
 290         default  9 if BFIN561_EZKIT
 291         default 10 if BFIN537_STAMP
 292         default 11 if BFIN533_STAMP
 293         default 10 if PNAV10
 294
 295 config ENET_FLASH_PIN
 296         int "PF port/pin used for flash and ethernet sharing"
 297         depends on (BFIN533_STAMP)
 298         default  0
 299         help
 300           PF port/pin used for flash and ethernet sharing to allow other PF
 301           pins to be used on other platforms without having to touch common
 302           code.
 303           For example: PF0 --> 0,PF1 --> 1,PF2 --> 2, etc.
 304
 305 config BOOT_LOAD
 306         hex "Kernel load address for booting"
 307         default "0x1000"
 308         help
 309           This option allows you to set the load address of the kernel.
 310           This can be useful if you are on a board which has a small amount
 311           of memory or you wish to reserve some memory at the beginning of
 312           the address space.
 313
 314           Note that you generally want to keep this value at or above 4k
 315           (0x1000) as this will allow the kernel to capture NULL pointer
 316           references.
 317
 318 comment "LED Status Indicators"
 319         depends on (BFIN533_STAMP || BFIN533_BLUETECHNIX_CM)
 320
 321 config BFIN_ALIVE_LED
 322         bool "Enable Board Alive"
 323         depends on (BFIN533_STAMP || BFIN533_BLUETECHNIX_CM)
 324         default n
 325         help
 326           Blink the LEDs you select when the kernel is running.  Helps detect
 327           a hung kernel.
 328
 329 config BFIN_ALIVE_LED_NUM
 330         int "LED"
 331         depends on BFIN_ALIVE_LED
 332         range 1 3 if BFIN533_STAMP
 333         default "3" if BFIN533_STAMP
 334         help
 335           Select the LED (marked on the board) for you to blink.
 336
 337 config BFIN_IDLE_LED
 338         bool "Enable System Load/Idle LED"
 339         depends on (BFIN533_STAMP || BFIN533_BLUETECHNIX_CM)
 340         default n
 341         help
 342           Blinks the LED you select when to determine kernel load.
 343
 344 config BFIN_IDLE_LED_NUM
 345         int "LED"
 346         depends on BFIN_IDLE_LED
 347         range 1 3 if BFIN533_STAMP
 348         default "2" if BFIN533_STAMP
 349         help
 350           Select the LED (marked on the board) for you to blink.
 351
 352 #
 353 # Sorry - but you need to put the hex address here -
 354 #
 355
 356 # Flag Data register
 357 config BFIN_ALIVE_LED_PORT
 358         hex
 359         default 0xFFC00700 if (BFIN533_STAMP)
 360
 361 # Peripheral Flag Direction Register
 362 config BFIN_ALIVE_LED_DPORT
 363         hex
 364         default 0xFFC00730 if (BFIN533_STAMP)
 365
 366 config BFIN_ALIVE_LED_PIN
 367         hex
 368         default 0x04 if (BFIN533_STAMP && BFIN_ALIVE_LED_NUM = 1)
 369         default 0x08 if (BFIN533_STAMP && BFIN_ALIVE_LED_NUM = 2)
 370         default 0x10 if (BFIN533_STAMP && BFIN_ALIVE_LED_NUM = 3)
 371
 372 config BFIN_IDLE_LED_PORT
 373         hex
 374         default 0xFFC00700 if (BFIN533_STAMP)
 375
 376 # Peripheral Flag Direction Register
 377 config BFIN_IDLE_LED_DPORT
 378         hex
 379         default 0xFFC00730 if (BFIN533_STAMP)
 380
 381 config BFIN_IDLE_LED_PIN
 382         hex
 383         default 0x04 if (BFIN533_STAMP && BFIN_IDLE_LED_NUM = 1)
 384         default 0x08 if (BFIN533_STAMP && BFIN_IDLE_LED_NUM = 2)
 385         default 0x10 if (BFIN533_STAMP && BFIN_IDLE_LED_NUM = 3)
 386
 387 comment "Console UART Setup"
 388
 389 choice
 390         prompt "Baud Rate"
 391         default BAUD_57600
 392 config BAUD_9600
 393         bool "9600"
 394 config BAUD_19200
 395         bool "19200"
 396 config BAUD_38400
 397         bool "38400"
 398 config BAUD_57600
 399         bool "57600"
 400 config BAUD_115200
 401         bool "115200"
 402 endchoice
 403
 404 choice
 405         prompt "Parity"
 406         default BAUD_NO_PARITY
 407 config  BAUD_NO_PARITY
 408         bool "No Parity"
 409 config  BAUD_PARITY
 410         bool "Parity"
 411 endchoice
 412
 413 choice
 414         prompt "Stop Bits"
 415         default BAUD_1_STOPBIT
 416 config  BAUD_1_STOPBIT
 417         bool "1"
 418 config  BAUD_2_STOPBIT
 419         bool "2"
 420 endchoice
 421
 422 endmenu
 423
 424
 425 menu "Blackfin Kernel Optimizations"
 426
 427 comment "Timer Tick"
 428
 429 source kernel/Kconfig.hz
 430
 431 comment "Memory Optimizations"
 432
 433 config I_ENTRY_L1
 434         bool "Locate interrupt entry code in L1 Memory"
 435         default y
 436         help
 437           If enabled interrupt entry code (STORE/RESTORE CONTEXT) is linked
 438           into L1 instruction memory.(less latency)
 439
 440 config EXCPT_IRQ_SYSC_L1
 441         bool "Locate entire ASM lowlevel excepetion / interrupt - Syscall and CPLB handler code in L1 Memory"
 442         default y
 443         help
 444           If enabled entire ASM lowlevel exception and interrupt entry code (STORE/RESTORE CONTEXT) is linked
 445           into L1 instruction memory.(less latency)
 446
 447 config DO_IRQ_L1
 448         bool "Locate frequently called do_irq dispatcher function in L1 Memory"
 449         default y
 450         help
 451           If enabled frequently called do_irq dispatcher function is linked
 452           into L1 instruction memory.(less latency)
 453
 454 config CORE_TIMER_IRQ_L1
 455         bool "Locate frequently called timer_interrupt() function in L1 Memory"
 456         default y
 457         help
 458           If enabled frequently called timer_interrupt() function is linked
 459           into L1 instruction memory.(less latency)
 460
 461 config IDLE_L1
 462         bool "Locate frequently idle function in L1 Memory"
 463         default y
 464         help
 465           If enabled frequently called idle function is linked
 466           into L1 instruction memory.(less latency)
 467
 468 config SCHEDULE_L1
 469         bool "Locate kernel schedule function in L1 Memory"
 470         default y
 471         help
 472           If enabled frequently called kernel schedule is linked
 473           into L1 instruction memory.(less latency)
 474
 475 config ARITHMETIC_OPS_L1
 476         bool "Locate kernel owned arithmetic functions in L1 Memory"
 477         default y
 478         help
 479           If enabled arithmetic functions are linked
 480           into L1 instruction memory.(less latency)
 481
 482 config ACCESS_OK_L1
 483         bool "Locate access_ok function in L1 Memory"
 484         default y
 485         help
 486           If enabled access_ok function is linked
 487           into L1 instruction memory.(less latency)
 488
 489 config MEMSET_L1
 490         bool "Locate memset function in L1 Memory"
 491         default y
 492         help
 493           If enabled memset function is linked
 494           into L1 instruction memory.(less latency)
 495
 496 config MEMCPY_L1
 497         bool "Locate memcpy function in L1 Memory"
 498         default y
 499         help
 500           If enabled memcpy function is linked
 501           into L1 instruction memory.(less latency)
 502
 503 config SYS_BFIN_SPINLOCK_L1
 504         bool "Locate sys_bfin_spinlock function in L1 Memory"
 505         default y
 506         help
 507           If enabled sys_bfin_spinlock function is linked
 508           into L1 instruction memory.(less latency)
 509
 510 config IP_CHECKSUM_L1
 511         bool "Locate IP Checksum function in L1 Memory"
 512         default n
 513         help
 514           If enabled IP Checksum function is linked
 515           into L1 instruction memory.(less latency)
 516
 517 config CACHELINE_ALIGNED_L1
 518         bool "Locate cacheline_aligned data to L1 Data Memory"
 519         default y
 520         depends on !BF531
 521         help
 522           If enabled cacheline_anligned data is linked
 523           into L1 data memory.(less latency)
 524
 525 config SYSCALL_TAB_L1
 526         bool "Locate Syscall Table L1 Data Memory"
 527         default n
 528         depends on !BF531
 529         help
 530           If enabled the Syscall LUT is linked
 531           into L1 data memory.(less latency)
 532
 533 config CPLB_SWITCH_TAB_L1
 534         bool "Locate CPLB Switch Tables L1 Data Memory"
 535         default n
 536         depends on !BF531
 537         help
 538           If enabled the CPLB Switch Tables are linked
 539           into L1 data memory.(less latency)
 540
 541 endmenu
 542
 543
 544 choice
 545         prompt "Kernel executes from"
 546         help
 547           Choose the memory type that the kernel will be running in.
 548
 549 config RAMKERNEL
 550         bool "RAM"
 551         help
 552           The kernel will be resident in RAM when running.
 553
 554 config ROMKERNEL
 555         bool "ROM"
 556         help
 557           The kernel will be resident in FLASH/ROM when running.
 558
 559 endchoice
 560
 561 source "mm/Kconfig"
 562
 563 config BFIN_DMA_5XX
 564         bool "Enable DMA Support"
 565         depends on (BF533 || BF532 || BF531 || BF537 || BF536 || BF534 || BF561)
 566         default y
 567         help
 568           DMA driver for BF5xx.
 569
 570 choice
 571         prompt "Uncached SDRAM region"
 572         default DMA_UNCACHED_1M
 573         depends BFIN_DMA_5XX
 574 config DMA_UNCACHED_2M
 575         bool "Enable 2M DMA region"
 576 config DMA_UNCACHED_1M
 577         bool "Enable 1M DMA region"
 578 config DMA_UNCACHED_NONE
 579         bool "Disable DMA region"
 580 endchoice
 581
 582
 583 comment "Cache Support"
 584 config BLKFIN_CACHE
 585         bool "Enable ICACHE"
 586 config BLKFIN_DCACHE
 587         bool "Enable DCACHE"
 588 config BLKFIN_DCACHE_BANKA
 589         bool "Enable only 16k BankA DCACHE - BankB is SRAM"
 590         depends on BLKFIN_DCACHE && !BF531
 591         default n
 592 config BLKFIN_CACHE_LOCK
 593         bool "Enable Cache Locking"
 594
 595 choice
 596         prompt "Policy"
 597         depends on BLKFIN_DCACHE
 598         default BLKFIN_WB
 599 config BLKFIN_WB
 600         bool "Write back"
 601         help
 602           Write Back Policy:
 603             Cached data will be written back to SDRAM only when needed.
 604             This can give a nice increase in performance, but beware of
 605             broken drivers that do not properly invalidate/flush their
 606             cache.
 607
 608           Write Through Policy:
 609             Cached data will always be written back to SDRAM when the
 610             cache is updated.  This is a completely safe setting, but
 611             performance is worse than Write Back.
 612
 613           If you are unsure of the options and you want to be safe,
 614           then go with Write Through.
 615
 616 config BLKFIN_WT
 617         bool "Write through"
 618         help
 619           Write Back Policy:
 620             Cached data will be written back to SDRAM only when needed.
 621             This can give a nice increase in performance, but beware of
 622             broken drivers that do not properly invalidate/flush their
 623             cache.
 624
 625           Write Through Policy:
 626             Cached data will always be written back to SDRAM when the
 627             cache is updated.  This is a completely safe setting, but
 628             performance is worse than Write Back.
 629
 630           If you are unsure of the options and you want to be safe,
 631           then go with Write Through.
 632
 633 endchoice
 634
 635 config L1_MAX_PIECE
 636         int "Set the max L1 SRAM pieces"
 637         default 16
 638         help
 639           Set the max memory pieces for the L1 SRAM allocation algorithm.
 640           Min value is 16. Max value is 1024.
 641
 642 menu "Clock Settings"
 643
 644
 645 config BFIN_KERNEL_CLOCK
 646         bool "Re-program Clocks while Kernel boots?"
 647         default n
 648         help
 649           This option decides if kernel clocks are re-programed from the
 650           bootloader settings. If the clocks are not set, the SDRAM settings
 651           are also not changed, and the Bootloader does 100% of the hardware
 652           configuration.
 653
 654 config VCO_MULT
 655         int "VCO Multiplier"
 656         depends on BFIN_KERNEL_CLOCK
 657         default "22" if BFIN533_EZKIT
 658         default "45" if BFIN533_STAMP
 659         default "20" if BFIN537_STAMP
 660         default "22" if BFIN533_BLUETECHNIX_CM
 661         default "20" if BFIN537_BLUETECHNIX_CM
 662         default "20" if BFIN561_BLUETECHNIX_CM
 663         default "20" if BFIN561_EZKIT
 664
 665 config CCLK_DIV
 666         int "Core Clock Divider"
 667         depends on BFIN_KERNEL_CLOCK
 668         default 1 if BFIN533_EZKIT
 669         default 1 if BFIN533_STAMP
 670         default 1 if BFIN537_STAMP
 671         default 1 if BFIN533_BLUETECHNIX_CM
 672         default 1 if BFIN537_BLUETECHNIX_CM
 673         default 1 if BFIN561_BLUETECHNIX_CM
 674         default 1 if BFIN561_EZKIT
 675
 676 config SCLK_DIV
 677         int "System Clock Divider"
 678         depends on BFIN_KERNEL_CLOCK
 679         default 5 if BFIN533_EZKIT
 680         default 5 if BFIN533_STAMP
 681         default 4 if BFIN537_STAMP
 682         default 5 if BFIN533_BLUETECHNIX_CM
 683         default 4 if BFIN537_BLUETECHNIX_CM
 684         default 4 if BFIN561_BLUETECHNIX_CM
 685         default 5 if BFIN561_EZKIT
 686
 687 config CLKIN_HALF
 688         bool "Half ClockIn"
 689         depends on BFIN_KERNEL_CLOCK
 690         default n
 691
 692 config PLL_BYPASS
 693         bool "Bypass PLL"
 694         depends on BFIN_KERNEL_CLOCK
 695         default n
 696
 697 endmenu
 698
 699 comment "Asynchonous Memory Configuration"
 700
 701 menu "EBIU_AMBCTL Global Control"
 702 config C_AMCKEN
 703         bool "Enable CLKOUT"
 704         default y
 705
 706 config C_CDPRIO
 707         bool "DMA has priority over core for ext. accesses"
 708         default n
 709
 710 config C_B0PEN
 711         depends on BF561
 712         bool "Bank 0 16 bit packing enable"
 713         default y
 714
 715 config C_B1PEN
 716         depends on BF561
 717         bool "Bank 1 16 bit packing enable"
 718         default y
 719
 720 config C_B2PEN
 721         depends on BF561
 722         bool "Bank 2 16 bit packing enable"
 723         default y
 724
 725 config C_B3PEN
 726         depends on BF561
 727         bool "Bank 3 16 bit packing enable"
 728         default n
 729
 730 choice
 731         prompt"Enable Asynchonous Memory Banks"
 732         default C_AMBEN_ALL
 733
 734 config C_AMBEN
 735         bool "Disable All Banks"
 736
 737 config C_AMBEN_B0
 738         bool "Enable Bank 0"
 739
 740 config C_AMBEN_B0_B1
 741         bool "Enable Bank 0 & 1"
 742
 743 config C_AMBEN_B0_B1_B2
 744         bool "Enable Bank 0 & 1 & 2"
 745
 746 config C_AMBEN_ALL
 747         bool "Enable All Banks"
 748 endchoice
 749 endmenu
 750
 751 menu "EBIU_AMBCTL Control"
 752 config BANK_0
 753         hex "Bank 0"
 754         default 0x7BB0
 755
 756 config BANK_1
 757         hex "Bank 1"
 758         default 0x7BB0
 759
 760 config BANK_2
 761         hex "Bank 2"
 762         default 0x7BB0
 763
 764 config BANK_3
 765         hex "Bank 3"
 766         default 0x99B3
 767 endmenu
 768
 769 endmenu
 770
 771 #############################################################################
 772 menu "Bus options (PCI, PCMCIA, EISA, MCA, ISA)"
 773
 774 config PCI
 775         bool "PCI support"
 776         help
 777           Support for PCI bus.
 778
 779 source "drivers/pci/Kconfig"
 780
 781 config HOTPLUG
 782         bool "Support for hot-pluggable device"
 783           help
 784           Say Y here if you want to plug devices into your computer while
 785           the system is running, and be able to use them quickly.  In many
 786           cases, the devices can likewise be unplugged at any time too.
 787
 788           One well known example of this is PCMCIA- or PC-cards, credit-card
 789           size devices such as network cards, modems or hard drives which are
 790           plugged into slots found on all modern laptop computers.  Another
 791           example, used on modern desktops as well as laptops, is USB.
 792
 793           Enable HOTPLUG and KMOD, and build a modular kernel.  Get agent
 794           software (at <http://linux-hotplug.sourceforge.net/>) and install it.
 795           Then your kernel will automatically call out to a user mode "policy
 796           agent" (/sbin/hotplug) to load modules and set up software needed
 797           to use devices as you hotplug them.
 798
 799 source "drivers/pcmcia/Kconfig"
 800
 801 source "drivers/pci/hotplug/Kconfig"
 802
 803 endmenu
 804
 805 menu "Executable file formats"
 806
 807 source "fs/Kconfig.binfmt"
 808
 809 endmenu
 810
 811 menu "Power management options"
 812 source "kernel/power/Kconfig"
 813
 814 choice
 815         prompt "Select PM Wakeup Event Source"
 816         default PM_WAKEUP_GPIO_BY_SIC_IWR
 817         depends on PM
 818         help
 819           If you have a GPIO already configured as input with the corresponding PORTx_MASK
 820           bit set - "Specify Wakeup Event by SIC_IWR value"
 821
 822 config PM_WAKEUP_GPIO_BY_SIC_IWR
 823         bool "Specify Wakeup Event by SIC_IWR value"
 824 config PM_WAKEUP_BY_GPIO
 825         bool "Cause Wakeup Event by GPIO"
 826 config PM_WAKEUP_GPIO_API
 827         bool "Configure Wakeup Event by PM GPIO API"
 828
 829 endchoice
 830
 831 config PM_WAKEUP_SIC_IWR
 832         hex "Wakeup Events (SIC_IWR)"
 833         depends on PM_WAKEUP_GPIO_BY_SIC_IWR
 834         default 0x80000000 if (BF537 || BF536 || BF534)
 835         default 0x100000 if (BF533 || BF532 || BF531)
 836
 837 config PM_WAKEUP_GPIO_NUMBER
 838         int "Wakeup GPIO number"
 839         range 0 47
 840         depends on PM_WAKEUP_BY_GPIO
 841         default 2 if BFIN537_STAMP
 842
 843 choice
 844         prompt "GPIO Polarity"
 845         depends on PM_WAKEUP_BY_GPIO
 846         default PM_WAKEUP_GPIO_POLAR_H
 847 config  PM_WAKEUP_GPIO_POLAR_H
 848         bool "Active High"
 849 config  PM_WAKEUP_GPIO_POLAR_L
 850         bool "Active Low"
 851 config  PM_WAKEUP_GPIO_POLAR_EDGE_F
 852         bool "Falling EDGE"
 853 config  PM_WAKEUP_GPIO_POLAR_EDGE_R
 854         bool "Rising EDGE"
 855 config  PM_WAKEUP_GPIO_POLAR_EDGE_B
 856         bool "Both EDGE"
 857 endchoice
 858
 859 endmenu
 860
 861 if (BF537 || BF533)
 862
 863 menu "CPU Frequency scaling"
 864
 865 source "drivers/cpufreq/Kconfig"
 866
 867 config CPU_FREQ
 868         bool
 869         default n
 870         help
 871           If you want to enable this option, you should select the
 872           DPMC driver from Character Devices.
 873 endmenu
 874
 875 endif
 876
 877 source "net/Kconfig"
 878
 879 source "drivers/Kconfig"
 880
 881 source "fs/Kconfig"
 882
 883 source "arch/blackfin/oprofile/Kconfig"
 884
 885 menu "Kernel hacking"
 886
 887 source "lib/Kconfig.debug"
 888
 889 config DEBUG_HWERR
 890         bool "Hardware error interrupt debugging"
 891         depends on DEBUG_KERNEL
 892         help
 893           When enabled, the hardware error interrupt is never disabled, and
 894           will happen immediately when an error condition occurs.  This comes
 895           at a slight cost in code size, but is necessary if you are getting
 896           hardware error interrupts and need to know where they are coming
 897           from.
 898
 899 config DEBUG_ICACHE_CHECK
 900         bool "Check Instruction cache coherancy"
 901         depends on DEBUG_KERNEL
 902         depends on DEBUG_HWERR
 903         help
 904           Say Y here if you are getting wierd unexplained errors. This will
 905           ensure that icache is what SDRAM says it should be, by doing a
 906           byte wise comparision between SDRAM and instruction cache. This
 907           also relocates the irq_panic() function to L1 memory, (which is
 908           un-cached).
 909
 910 config DEBUG_KERNEL_START
 911         bool "Debug Kernel Startup"
 912         depends on DEBUG_KERNEL
 913         help
 914           Say Y here to put in an mini-execption handler before the kernel
 915           replaces the bootloader exception handler. This will stop kernels
 916           from dieing at startup with no visible error messages.
 917
 918 config DEBUG_SERIAL_EARLY_INIT
 919         bool "Initialize serial driver early"
 920         default n
 921         depends on SERIAL_BFIN
 922         help
 923           Say Y here if you want to get kernel output early when kernel
 924           crashes before the normal console initialization. If this option
 925           is enable, console output will always go to the ttyBF0, no matter
 926           what kernel boot paramters you set.
 927
 928 config DEBUG_HUNT_FOR_ZERO
 929         bool "Catch NULL pointer reads/writes"
 930         default y
 931         help
 932           Say Y here to catch reads/writes to anywhere in the memory range
 933           from 0x0000 - 0x0FFF (the first 4k) of memory.  This is useful in
 934           catching common programming errors such as NULL pointer dereferences.
 935
 936           Misbehaving applications will be killed (generate a SEGV) while the
 937           kernel will trigger a panic.
 938
 939           Enabling this option will take up an extra entry in CPLB table.
 940           Otherwise, there is no extra overhead.
 941
 942 config DEBUG_BFIN_NO_KERN_HWTRACE
 943         bool "Trace user apps (turn off hwtrace in kernel)"
 944         default n
 945         help
 946           Some pieces of the kernel contain a lot of flow changes which can
 947           quickly fill up the hardware trace buffer.  When debugging crashes,
 948           the hardware trace may indicate that the problem lies in kernel
 949           space when in reality an application is buggy.
 950
 951           Say Y here to disable hardware tracing in some known "jumpy" pieces
 952           of code so that the trace buffer will extend further back.
 953
 954 config DUAL_CORE_TEST_MODULE
 955         tristate "Dual Core Test Module"
 956         depends on (BF561)
 957         default n
 958         help
 959           Say Y here to build-in dual core test module for dual core test.
 960
 961 config CPLB_INFO
 962         bool "Display the CPLB information"
 963         help
 964           Display the CPLB information.
 965
 966 config ACCESS_CHECK
 967         bool "Check the user pointer address"
 968         default y
 969         help
 970           Usually the pointer transfer from user space is checked to see if its
 971           address is in the kernel space.
 972
 973           Say N here to disable that check to improve the performance.
 974
 975 endmenu
 976
 977 source "security/Kconfig"
 978
 979 source "crypto/Kconfig"
 980
 981 source "lib/Kconfig"