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 ZONE_DMA
  29         bool
  30         default y
  31
  32 config BFIN
  33         bool
  34         default y
  35
  36 config SEMAPHORE_SLEEPERS
  37         bool
  38         default y
  39
  40 config GENERIC_FIND_NEXT_BIT
  41         bool
  42         default y
  43
  44 config GENERIC_HWEIGHT
  45         bool
  46         default y
  47
  48 config GENERIC_HARDIRQS
  49         bool
  50         default y
  51
  52 config GENERIC_IRQ_PROBE
  53         bool
  54         default y
  55
  56 config GENERIC_TIME
  57         bool
  58         default n
  59
  60 config GENERIC_GPIO
  61         bool
  62         default y
  63
  64 config FORCE_MAX_ZONEORDER
  65         int
  66         default "14"
  67
  68 config GENERIC_CALIBRATE_DELAY
  69         bool
  70         default y
  71
  72 config IRQCHIP_DEMUX_GPIO
  73         bool
  74         depends on (BF53x || BF561 || BF54x)
  75         default y
  76
  77 source "init/Kconfig"
  78 source "kernel/Kconfig.preempt"
  79
  80 menu "Blackfin Processor Options"
  81
  82 comment "Processor and Board Settings"
  83
  84 choice
  85         prompt "CPU"
  86         default BF533
  87
  88 config BF531
  89         bool "BF531"
  90         help
  91           BF531 Processor Support.
  92
  93 config BF532
  94         bool "BF532"
  95         help
  96           BF532 Processor Support.
  97
  98 config BF533
  99         bool "BF533"
 100         help
 101           BF533 Processor Support.
 102
 103 config BF534
 104         bool "BF534"
 105         help
 106           BF534 Processor Support.
 107
 108 config BF536
 109         bool "BF536"
 110         help
 111           BF536 Processor Support.
 112
 113 config BF537
 114         bool "BF537"
 115         help
 116           BF537 Processor Support.
 117
 118 config BF542
 119         bool "BF542"
 120         help
 121           BF542 Processor Support.
 122
 123 config BF544
 124         bool "BF544"
 125         help
 126           BF544 Processor Support.
 127
 128 config BF548
 129         bool "BF548"
 130         help
 131           BF548 Processor Support.
 132
 133 config BF549
 134         bool "BF549"
 135         help
 136           BF549 Processor Support.
 137
 138 config BF561
 139         bool "BF561"
 140         help
 141           Not Supported Yet - Work in progress - BF561 Processor Support.
 142
 143 endchoice
 144
 145 choice
 146         prompt "Silicon Rev"
 147         default BF_REV_0_2 if BF537
 148         default BF_REV_0_3 if BF533
 149         default BF_REV_0_0 if BF549
 150
 151 config BF_REV_0_0
 152         bool "0.0"
 153         depends on (BF549)
 154
 155 config BF_REV_0_2
 156         bool "0.2"
 157         depends on (BF537 || BF536 || BF534)
 158
 159 config BF_REV_0_3
 160         bool "0.3"
 161         depends on (BF561 || BF537 || BF536 || BF534 || BF533 || BF532 || BF531)
 162
 163 config BF_REV_0_4
 164         bool "0.4"
 165         depends on (BF561 || BF533 || BF532 || BF531)
 166
 167 config BF_REV_0_5
 168         bool "0.5"
 169         depends on (BF561 || BF533 || BF532 || BF531)
 170
 171 config BF_REV_ANY
 172         bool "any"
 173
 174 config BF_REV_NONE
 175         bool "none"
 176
 177 endchoice
 178
 179 config BF53x
 180         bool
 181         depends on (BF531 || BF532 || BF533 || BF534 || BF536 || BF537)
 182         default y
 183
 184 config BF54x
 185         bool
 186         depends on (BF542 || BF544 || BF548 || BF549)
 187         default y
 188
 189 config BFIN_DUAL_CORE
 190         bool
 191         depends on (BF561)
 192         default y
 193
 194 config BFIN_SINGLE_CORE
 195         bool
 196         depends on !BFIN_DUAL_CORE
 197         default y
 198
 199 choice
 200         prompt "System type"
 201         default BFIN533_STAMP
 202         help
 203           Do NOT change the board here.  Please use the top level
 204           configuration to ensure that all the other settings are
 205           correct.
 206
 207 config BFIN533_EZKIT
 208         bool "BF533-EZKIT"
 209         depends on (BF533 || BF532 || BF531)
 210         help
 211           BF533-EZKIT-LITE board Support.
 212
 213 config  BFIN533_STAMP
 214         bool "BF533-STAMP"
 215         depends on (BF533 || BF532 || BF531)
 216         help
 217           BF533-STAMP board Support.
 218
 219 config BFIN537_STAMP
 220         bool "BF537-STAMP"
 221         depends on (BF537 || BF536 || BF534)
 222         help
 223           BF537-STAMP board Support.
 224
 225 config BFIN533_BLUETECHNIX_CM
 226         bool "Bluetechnix CM-BF533"
 227         depends on (BF533)
 228         help
 229           CM-BF533 support for EVAL- and DEV-Board.
 230
 231 config BFIN537_BLUETECHNIX_CM
 232         bool "Bluetechnix CM-BF537"
 233         depends on (BF537)
 234         help
 235           CM-BF537 support for EVAL- and DEV-Board.
 236
 237 config BFIN548_EZKIT
 238         bool "BF548-EZKIT"
 239         depends on (BF548 || BF549)
 240           help
 241           BFIN548-EZKIT board Support.
 242
 243 config BFIN561_BLUETECHNIX_CM
 244         bool "Bluetechnix CM-BF561"
 245         depends on (BF561)
 246         help
 247           CM-BF561 support for EVAL- and DEV-Board.
 248
 249 config BFIN561_EZKIT
 250         bool "BF561-EZKIT"
 251         depends on (BF561)
 252         help
 253           BF561-EZKIT-LITE board Support.
 254
 255 config BFIN561_TEPLA
 256         bool "BF561-TEPLA"
 257         depends on (BF561)
 258         help
 259          BF561-TEPLA board Support.
 260
 261 config PNAV10
 262         bool "PNAV 1.0 board"
 263         depends on (BF537)
 264         help
 265           PNAV 1.0 board Support.
 266
 267 config GENERIC_BOARD
 268         bool "Custom"
 269         depends on (BF537 || BF536 \
 270                 || BF534 || BF561 || BF535 || BF533 || BF532 || BF531)
 271         help
 272           GENERIC or Custom board Support.
 273
 274 endchoice
 275
 276 config MEM_GENERIC_BOARD
 277         bool
 278         depends on GENERIC_BOARD
 279         default y
 280
 281 config MEM_MT48LC64M4A2FB_7E
 282         bool
 283         depends on (BFIN533_STAMP)
 284         default y
 285
 286 config MEM_MT48LC16M16A2TG_75
 287         bool
 288         depends on (BFIN533_EZKIT || BFIN561_EZKIT \
 289                 || BFIN533_BLUETECHNIX_CM || BFIN537_BLUETECHNIX_CM)
 290         default y
 291
 292 config MEM_MT48LC32M8A2_75
 293         bool
 294         depends on (BFIN537_STAMP || PNAV10)
 295         default y
 296
 297 config MEM_MT48LC8M32B2B5_7
 298         bool
 299         depends on (BFIN561_BLUETECHNIX_CM)
 300         default y
 301
 302 config BFIN_SHARED_FLASH_ENET
 303         bool
 304         depends on (BFIN533_STAMP)
 305         default y
 306
 307 source "arch/blackfin/mach-bf533/Kconfig"
 308 source "arch/blackfin/mach-bf561/Kconfig"
 309 source "arch/blackfin/mach-bf537/Kconfig"
 310 source "arch/blackfin/mach-bf548/Kconfig"
 311
 312 menu "Board customizations"
 313
 314 config CMDLINE_BOOL
 315         bool "Default bootloader kernel arguments"
 316
 317 config CMDLINE
 318         string "Initial kernel command string"
 319         depends on CMDLINE_BOOL
 320         default "console=ttyBF0,57600"
 321         help
 322           If you don't have a boot loader capable of passing a command line string
 323           to the kernel, you may specify one here. As a minimum, you should specify
 324           the memory size and the root device (e.g., mem=8M, root=/dev/nfs).
 325
 326 comment "Clock/PLL Setup"
 327
 328 config CLKIN_HZ
 329         int "Crystal Frequency in Hz"
 330         default "11059200" if BFIN533_STAMP
 331         default "27000000" if BFIN533_EZKIT
 332         default "25000000" if BFIN537_STAMP
 333         default "30000000" if BFIN561_EZKIT
 334         default "24576000" if PNAV10
 335         help
 336           The frequency of CLKIN crystal oscillator on the board in Hz.
 337
 338 config BFIN_KERNEL_CLOCK
 339         bool "Re-program Clocks while Kernel boots?"
 340         default n
 341         help
 342           This option decides if kernel clocks are re-programed from the
 343           bootloader settings. If the clocks are not set, the SDRAM settings
 344           are also not changed, and the Bootloader does 100% of the hardware
 345           configuration.
 346
 347 config PLL_BYPASS
 348         bool "Bypass PLL"
 349         depends on BFIN_KERNEL_CLOCK
 350         default n
 351
 352 config CLKIN_HALF
 353         bool "Half Clock In"
 354         depends on BFIN_KERNEL_CLOCK && (! PLL_BYPASS)
 355         default n
 356         help
 357           If this is set the clock will be divided by 2, before it goes to the PLL.
 358
 359 config VCO_MULT
 360         int "VCO Multiplier"
 361         depends on BFIN_KERNEL_CLOCK && (! PLL_BYPASS)
 362         range 1 64
 363         default "22" if BFIN533_EZKIT
 364         default "45" if BFIN533_STAMP
 365         default "20" if BFIN537_STAMP
 366         default "22" if BFIN533_BLUETECHNIX_CM
 367         default "20" if BFIN537_BLUETECHNIX_CM
 368         default "20" if BFIN561_BLUETECHNIX_CM
 369         default "20" if BFIN561_EZKIT
 370         help
 371           This controls the frequency of the on-chip PLL. This can be between 1 and 64.
 372           PLL Frequency = (Crystal Frequency) * (this setting)
 373
 374 choice
 375         prompt "Core Clock Divider"
 376         depends on BFIN_KERNEL_CLOCK
 377         default CCLK_DIV_1
 378         help
 379           This sets the frequency of the core. It can be 1, 2, 4 or 8
 380           Core Frequency = (PLL frequency) / (this setting)
 381
 382 config CCLK_DIV_1
 383         bool "1"
 384
 385 config CCLK_DIV_2
 386         bool "2"
 387
 388 config CCLK_DIV_4
 389         bool "4"
 390
 391 config CCLK_DIV_8
 392         bool "8"
 393 endchoice
 394
 395 config SCLK_DIV
 396         int "System Clock Divider"
 397         depends on BFIN_KERNEL_CLOCK
 398         range 1 15
 399         default 5 if BFIN533_EZKIT
 400         default 5 if BFIN533_STAMP
 401         default 4 if BFIN537_STAMP
 402         default 5 if BFIN533_BLUETECHNIX_CM
 403         default 4 if BFIN537_BLUETECHNIX_CM
 404         default 4 if BFIN561_BLUETECHNIX_CM
 405         default 5 if BFIN561_EZKIT
 406         help
 407           This sets the frequency of the system clock (including SDRAM or DDR).
 408           This can be between 1 and 15
 409           System Clock = (PLL frequency) / (this setting)
 410
 411 #
 412 # Max & Min Speeds for various Chips
 413 #
 414 config MAX_VCO_HZ
 415         int
 416         default 600000000 if BF522
 417         default 600000000 if BF525
 418         default 600000000 if BF527
 419         default 400000000 if BF531
 420         default 400000000 if BF532
 421         default 750000000 if BF533
 422         default 500000000 if BF534
 423         default 400000000 if BF536
 424         default 600000000 if BF537
 425         default 533000000 if BF538
 426         default 533000000 if BF539
 427         default 600000000 if BF542
 428         default 533000000 if BF544
 429         default 533000000 if BF549
 430         default 600000000 if BF561
 431
 432 config MIN_VCO_HZ
 433         int
 434         default 50000000
 435
 436 config MAX_SCLK_HZ
 437         int
 438         default 133000000
 439
 440 config MIN_SCLK_HZ
 441         int
 442         default 27000000
 443
 444 comment "Kernel Timer/Scheduler"
 445
 446 source kernel/Kconfig.hz
 447
 448 comment "Memory Setup"
 449
 450 config MEM_SIZE
 451         int "SDRAM Memory Size in MBytes"
 452         default  32 if BFIN533_EZKIT
 453         default  64 if BFIN537_STAMP
 454         default  64 if BFIN561_EZKIT
 455         default 128 if BFIN533_STAMP
 456         default  64 if PNAV10
 457
 458 config MEM_ADD_WIDTH
 459         int "SDRAM Memory Address Width"
 460         default  9 if BFIN533_EZKIT
 461         default  9 if BFIN561_EZKIT
 462         default 10 if BFIN537_STAMP
 463         default 11 if BFIN533_STAMP
 464         default 10 if PNAV10
 465
 466 config ENET_FLASH_PIN
 467         int "PF port/pin used for flash and ethernet sharing"
 468         depends on (BFIN533_STAMP)
 469         default  0
 470         help
 471           PF port/pin used for flash and ethernet sharing to allow other PF
 472           pins to be used on other platforms without having to touch common
 473           code.
 474           For example: PF0 --> 0,PF1 --> 1,PF2 --> 2, etc.
 475
 476 config BOOT_LOAD
 477         hex "Kernel load address for booting"
 478         default "0x1000"
 479         range 0x1000 0x20000000
 480         help
 481           This option allows you to set the load address of the kernel.
 482           This can be useful if you are on a board which has a small amount
 483           of memory or you wish to reserve some memory at the beginning of
 484           the address space.
 485
 486           Note that you need to keep this value above 4k (0x1000) as this
 487           memory region is used to capture NULL pointer references as well
 488           as some core kernel functions.
 489
 490 comment "LED Status Indicators"
 491         depends on (BFIN533_STAMP || BFIN533_BLUETECHNIX_CM)
 492
 493 config BFIN_ALIVE_LED
 494         bool "Enable Board Alive"
 495         depends on (BFIN533_STAMP || BFIN533_BLUETECHNIX_CM)
 496         default n
 497         help
 498           Blink the LEDs you select when the kernel is running.  Helps detect
 499           a hung kernel.
 500
 501 config BFIN_ALIVE_LED_NUM
 502         int "LED"
 503         depends on BFIN_ALIVE_LED
 504         range 1 3 if BFIN533_STAMP
 505         default "3" if BFIN533_STAMP
 506         help
 507           Select the LED (marked on the board) for you to blink.
 508
 509 config BFIN_IDLE_LED
 510         bool "Enable System Load/Idle LED"
 511         depends on (BFIN533_STAMP || BFIN533_BLUETECHNIX_CM)
 512         default n
 513         help
 514           Blinks the LED you select when to determine kernel load.
 515
 516 config BFIN_IDLE_LED_NUM
 517         int "LED"
 518         depends on BFIN_IDLE_LED
 519         range 1 3 if BFIN533_STAMP
 520         default "2" if BFIN533_STAMP
 521         help
 522           Select the LED (marked on the board) for you to blink.
 523
 524 choice
 525         prompt "Blackfin Exception Scratch Register"
 526         default BFIN_SCRATCH_REG_RETN
 527         help
 528           Select the resource to reserve for the Exception handler:
 529             - RETN: Non-Maskable Interrupt (NMI)
 530             - RETE: Exception Return (JTAG/ICE)
 531             - CYCLES: Performance counter
 532
 533           If you are unsure, please select "RETN".
 534
 535 config BFIN_SCRATCH_REG_RETN
 536         bool "RETN"
 537         help
 538           Use the RETN register in the Blackfin exception handler
 539           as a stack scratch register.  This means you cannot
 540           safely use NMI on the Blackfin while running Linux, but
 541           you can debug the system with a JTAG ICE and use the
 542           CYCLES performance registers.
 543
 544           If you are unsure, please select "RETN".
 545
 546 config BFIN_SCRATCH_REG_RETE
 547         bool "RETE"
 548         help
 549           Use the RETE register in the Blackfin exception handler
 550           as a stack scratch register.  This means you cannot
 551           safely use a JTAG ICE while debugging a Blackfin board,
 552           but you can safely use the CYCLES performance registers
 553           and the NMI.
 554
 555           If you are unsure, please select "RETN".
 556
 557 config BFIN_SCRATCH_REG_CYCLES
 558         bool "CYCLES"
 559         help
 560           Use the CYCLES register in the Blackfin exception handler
 561           as a stack scratch register.  This means you cannot
 562           safely use the CYCLES performance registers on a Blackfin
 563           board at anytime, but you can debug the system with a JTAG
 564           ICE and use the NMI.
 565
 566           If you are unsure, please select "RETN".
 567
 568 endchoice
 569
 570 #
 571 # Sorry - but you need to put the hex address here -
 572 #
 573
 574 # Flag Data register
 575 config BFIN_ALIVE_LED_PORT
 576         hex
 577         default 0xFFC00700 if (BFIN533_STAMP)
 578
 579 # Peripheral Flag Direction Register
 580 config BFIN_ALIVE_LED_DPORT
 581         hex
 582         default 0xFFC00730 if (BFIN533_STAMP)
 583
 584 config BFIN_ALIVE_LED_PIN
 585         hex
 586         default 0x04 if (BFIN533_STAMP && BFIN_ALIVE_LED_NUM = 1)
 587         default 0x08 if (BFIN533_STAMP && BFIN_ALIVE_LED_NUM = 2)
 588         default 0x10 if (BFIN533_STAMP && BFIN_ALIVE_LED_NUM = 3)
 589
 590 config BFIN_IDLE_LED_PORT
 591         hex
 592         default 0xFFC00700 if (BFIN533_STAMP)
 593
 594 # Peripheral Flag Direction Register
 595 config BFIN_IDLE_LED_DPORT
 596         hex
 597         default 0xFFC00730 if (BFIN533_STAMP)
 598
 599 config BFIN_IDLE_LED_PIN
 600         hex
 601         default 0x04 if (BFIN533_STAMP && BFIN_IDLE_LED_NUM = 1)
 602         default 0x08 if (BFIN533_STAMP && BFIN_IDLE_LED_NUM = 2)
 603         default 0x10 if (BFIN533_STAMP && BFIN_IDLE_LED_NUM = 3)
 604
 605 endmenu
 606
 607
 608 menu "Blackfin Kernel Optimizations"
 609
 610 comment "Memory Optimizations"
 611
 612 config I_ENTRY_L1
 613         bool "Locate interrupt entry code in L1 Memory"
 614         default y
 615         help
 616           If enabled interrupt entry code (STORE/RESTORE CONTEXT) is linked
 617           into L1 instruction memory.(less latency)
 618
 619 config EXCPT_IRQ_SYSC_L1
 620         bool "Locate entire ASM lowlevel excepetion / interrupt - Syscall and CPLB handler code in L1 Memory"
 621         default y
 622         help
 623           If enabled entire ASM lowlevel exception and interrupt entry code (STORE/RESTORE CONTEXT) is linked
 624           into L1 instruction memory.(less latency)
 625
 626 config DO_IRQ_L1
 627         bool "Locate frequently called do_irq dispatcher function in L1 Memory"
 628         default y
 629         help
 630           If enabled frequently called do_irq dispatcher function is linked
 631           into L1 instruction memory.(less latency)
 632
 633 config CORE_TIMER_IRQ_L1
 634         bool "Locate frequently called timer_interrupt() function in L1 Memory"
 635         default y
 636         help
 637           If enabled frequently called timer_interrupt() function is linked
 638           into L1 instruction memory.(less latency)
 639
 640 config IDLE_L1
 641         bool "Locate frequently idle function in L1 Memory"
 642         default y
 643         help
 644           If enabled frequently called idle function is linked
 645           into L1 instruction memory.(less latency)
 646
 647 config SCHEDULE_L1
 648         bool "Locate kernel schedule function in L1 Memory"
 649         default y
 650         help
 651           If enabled frequently called kernel schedule is linked
 652           into L1 instruction memory.(less latency)
 653
 654 config ARITHMETIC_OPS_L1
 655         bool "Locate kernel owned arithmetic functions in L1 Memory"
 656         default y
 657         help
 658           If enabled arithmetic functions are linked
 659           into L1 instruction memory.(less latency)
 660
 661 config ACCESS_OK_L1
 662         bool "Locate access_ok function in L1 Memory"
 663         default y
 664         help
 665           If enabled access_ok function is linked
 666           into L1 instruction memory.(less latency)
 667
 668 config MEMSET_L1
 669         bool "Locate memset function in L1 Memory"
 670         default y
 671         help
 672           If enabled memset function is linked
 673           into L1 instruction memory.(less latency)
 674
 675 config MEMCPY_L1
 676         bool "Locate memcpy function in L1 Memory"
 677         default y
 678         help
 679           If enabled memcpy function is linked
 680           into L1 instruction memory.(less latency)
 681
 682 config SYS_BFIN_SPINLOCK_L1
 683         bool "Locate sys_bfin_spinlock function in L1 Memory"
 684         default y
 685         help
 686           If enabled sys_bfin_spinlock function is linked
 687           into L1 instruction memory.(less latency)
 688
 689 config IP_CHECKSUM_L1
 690         bool "Locate IP Checksum function in L1 Memory"
 691         default n
 692         help
 693           If enabled IP Checksum function is linked
 694           into L1 instruction memory.(less latency)
 695
 696 config CACHELINE_ALIGNED_L1
 697         bool "Locate cacheline_aligned data to L1 Data Memory"
 698         default y if !BF54x
 699         default n if BF54x
 700         depends on !BF531
 701         help
 702           If enabled cacheline_anligned data is linked
 703           into L1 data memory.(less latency)
 704
 705 config SYSCALL_TAB_L1
 706         bool "Locate Syscall Table L1 Data Memory"
 707         default n
 708         depends on !BF531
 709         help
 710           If enabled the Syscall LUT is linked
 711           into L1 data memory.(less latency)
 712
 713 config CPLB_SWITCH_TAB_L1
 714         bool "Locate CPLB Switch Tables L1 Data Memory"
 715         default n
 716         depends on !BF531
 717         help
 718           If enabled the CPLB Switch Tables are linked
 719           into L1 data memory.(less latency)
 720
 721 endmenu
 722
 723
 724 choice
 725         prompt "Kernel executes from"
 726         help
 727           Choose the memory type that the kernel will be running in.
 728
 729 config RAMKERNEL
 730         bool "RAM"
 731         help
 732           The kernel will be resident in RAM when running.
 733
 734 config ROMKERNEL
 735         bool "ROM"
 736         help
 737           The kernel will be resident in FLASH/ROM when running.
 738
 739 endchoice
 740
 741 source "mm/Kconfig"
 742
 743 config LARGE_ALLOCS
 744         bool "Allow allocating large blocks (> 1MB) of memory"
 745         help
 746           Allow the slab memory allocator to keep chains for very large
 747           memory sizes - upto 32MB. You may need this if your system has
 748           a lot of RAM, and you need to able to allocate very large
 749           contiguous chunks. If unsure, say N.
 750
 751 config BFIN_DMA_5XX
 752         bool "Enable DMA Support"
 753         depends on (BF533 || BF532 || BF531 || BF537 || BF536 || BF534 || BF561 || BF54x)
 754         default y
 755         help
 756           DMA driver for BF5xx.
 757
 758 choice
 759         prompt "Uncached SDRAM region"
 760         default DMA_UNCACHED_1M
 761         depends BFIN_DMA_5XX
 762 config DMA_UNCACHED_2M
 763         bool "Enable 2M DMA region"
 764 config DMA_UNCACHED_1M
 765         bool "Enable 1M DMA region"
 766 config DMA_UNCACHED_NONE
 767         bool "Disable DMA region"
 768 endchoice
 769
 770
 771 comment "Cache Support"
 772 config BFIN_ICACHE
 773         bool "Enable ICACHE"
 774 config BFIN_DCACHE
 775         bool "Enable DCACHE"
 776 config BFIN_DCACHE_BANKA
 777         bool "Enable only 16k BankA DCACHE - BankB is SRAM"
 778         depends on BFIN_DCACHE && !BF531
 779         default n
 780 config BFIN_ICACHE_LOCK
 781         bool "Enable Instruction Cache Locking"
 782
 783 choice
 784         prompt "Policy"
 785         depends on BFIN_DCACHE
 786         default BFIN_WB
 787 config BFIN_WB
 788         bool "Write back"
 789         help
 790           Write Back Policy:
 791             Cached data will be written back to SDRAM only when needed.
 792             This can give a nice increase in performance, but beware of
 793             broken drivers that do not properly invalidate/flush their
 794             cache.
 795
 796           Write Through Policy:
 797             Cached data will always be written back to SDRAM when the
 798             cache is updated.  This is a completely safe setting, but
 799             performance is worse than Write Back.
 800
 801           If you are unsure of the options and you want to be safe,
 802           then go with Write Through.
 803
 804 config BFIN_WT
 805         bool "Write through"
 806         help
 807           Write Back Policy:
 808             Cached data will be written back to SDRAM only when needed.
 809             This can give a nice increase in performance, but beware of
 810             broken drivers that do not properly invalidate/flush their
 811             cache.
 812
 813           Write Through Policy:
 814             Cached data will always be written back to SDRAM when the
 815             cache is updated.  This is a completely safe setting, but
 816             performance is worse than Write Back.
 817
 818           If you are unsure of the options and you want to be safe,
 819           then go with Write Through.
 820
 821 endchoice
 822
 823 config L1_MAX_PIECE
 824         int "Set the max L1 SRAM pieces"
 825         default 16
 826         help
 827           Set the max memory pieces for the L1 SRAM allocation algorithm.
 828           Min value is 16. Max value is 1024.
 829
 830 comment "Asynchonous Memory Configuration"
 831
 832 menu "EBIU_AMBCTL Global Control"
 833 config C_AMCKEN
 834         bool "Enable CLKOUT"
 835         default y
 836
 837 config C_CDPRIO
 838         bool "DMA has priority over core for ext. accesses"
 839         depends on !BF54x
 840         default n
 841
 842 config C_B0PEN
 843         depends on BF561
 844         bool "Bank 0 16 bit packing enable"
 845         default y
 846
 847 config C_B1PEN
 848         depends on BF561
 849         bool "Bank 1 16 bit packing enable"
 850         default y
 851
 852 config C_B2PEN
 853         depends on BF561
 854         bool "Bank 2 16 bit packing enable"
 855         default y
 856
 857 config C_B3PEN
 858         depends on BF561
 859         bool "Bank 3 16 bit packing enable"
 860         default n
 861
 862 choice
 863         prompt"Enable Asynchonous Memory Banks"
 864         default C_AMBEN_ALL
 865
 866 config C_AMBEN
 867         bool "Disable All Banks"
 868
 869 config C_AMBEN_B0
 870         bool "Enable Bank 0"
 871
 872 config C_AMBEN_B0_B1
 873         bool "Enable Bank 0 & 1"
 874
 875 config C_AMBEN_B0_B1_B2
 876         bool "Enable Bank 0 & 1 & 2"
 877
 878 config C_AMBEN_ALL
 879         bool "Enable All Banks"
 880 endchoice
 881 endmenu
 882
 883 menu "EBIU_AMBCTL Control"
 884 config BANK_0
 885         hex "Bank 0"
 886         default 0x7BB0
 887
 888 config BANK_1
 889         hex "Bank 1"
 890         default 0x7BB0
 891
 892 config BANK_2
 893         hex "Bank 2"
 894         default 0x7BB0
 895
 896 config BANK_3
 897         hex "Bank 3"
 898         default 0x99B3
 899 endmenu
 900
 901 endmenu
 902
 903 #############################################################################
 904 menu "Bus options (PCI, PCMCIA, EISA, MCA, ISA)"
 905
 906 config PCI
 907         bool "PCI support"
 908         help
 909           Support for PCI bus.
 910
 911 source "drivers/pci/Kconfig"
 912
 913 config HOTPLUG
 914         bool "Support for hot-pluggable device"
 915           help
 916           Say Y here if you want to plug devices into your computer while
 917           the system is running, and be able to use them quickly.  In many
 918           cases, the devices can likewise be unplugged at any time too.
 919
 920           One well known example of this is PCMCIA- or PC-cards, credit-card
 921           size devices such as network cards, modems or hard drives which are
 922           plugged into slots found on all modern laptop computers.  Another
 923           example, used on modern desktops as well as laptops, is USB.
 924
 925           Enable HOTPLUG and KMOD, and build a modular kernel.  Get agent
 926           software (at <http://linux-hotplug.sourceforge.net/>) and install it.
 927           Then your kernel will automatically call out to a user mode "policy
 928           agent" (/sbin/hotplug) to load modules and set up software needed
 929           to use devices as you hotplug them.
 930
 931 source "drivers/pcmcia/Kconfig"
 932
 933 source "drivers/pci/hotplug/Kconfig"
 934
 935 endmenu
 936
 937 menu "Executable file formats"
 938
 939 source "fs/Kconfig.binfmt"
 940
 941 endmenu
 942
 943 menu "Power management options"
 944 source "kernel/power/Kconfig"
 945
 946 choice
 947         prompt "Select PM Wakeup Event Source"
 948         default PM_WAKEUP_GPIO_BY_SIC_IWR
 949         depends on PM
 950         help
 951           If you have a GPIO already configured as input with the corresponding PORTx_MASK
 952           bit set - "Specify Wakeup Event by SIC_IWR value"
 953
 954 config PM_WAKEUP_GPIO_BY_SIC_IWR
 955         bool "Specify Wakeup Event by SIC_IWR value"
 956 config PM_WAKEUP_BY_GPIO
 957         bool "Cause Wakeup Event by GPIO"
 958 config PM_WAKEUP_GPIO_API
 959         bool "Configure Wakeup Event by PM GPIO API"
 960
 961 endchoice
 962
 963 config PM_WAKEUP_SIC_IWR
 964         hex "Wakeup Events (SIC_IWR)"
 965         depends on PM_WAKEUP_GPIO_BY_SIC_IWR
 966         default 0x80000000 if (BF537 || BF536 || BF534)
 967         default 0x100000 if (BF533 || BF532 || BF531)
 968
 969 config PM_WAKEUP_GPIO_NUMBER
 970         int "Wakeup GPIO number"
 971         range 0 47
 972         depends on PM_WAKEUP_BY_GPIO
 973         default 2 if BFIN537_STAMP
 974
 975 choice
 976         prompt "GPIO Polarity"
 977         depends on PM_WAKEUP_BY_GPIO
 978         default PM_WAKEUP_GPIO_POLAR_H
 979 config  PM_WAKEUP_GPIO_POLAR_H
 980         bool "Active High"
 981 config  PM_WAKEUP_GPIO_POLAR_L
 982         bool "Active Low"
 983 config  PM_WAKEUP_GPIO_POLAR_EDGE_F
 984         bool "Falling EDGE"
 985 config  PM_WAKEUP_GPIO_POLAR_EDGE_R
 986         bool "Rising EDGE"
 987 config  PM_WAKEUP_GPIO_POLAR_EDGE_B
 988         bool "Both EDGE"
 989 endchoice
 990
 991 endmenu
 992
 993 if (BF537 || BF533 || BF54x)
 994
 995 menu "CPU Frequency scaling"
 996
 997 source "drivers/cpufreq/Kconfig"
 998
 999 config CPU_FREQ
1000         bool
1001         default n
1002         help
1003           If you want to enable this option, you should select the
1004           DPMC driver from Character Devices.
1005 endmenu
1006
1007 endif
1008
1009 source "net/Kconfig"
1010
1011 source "drivers/Kconfig"
1012
1013 source "fs/Kconfig"
1014
1015 source "arch/blackfin/oprofile/Kconfig"
1016
1017 menu "Kernel hacking"
1018
1019 source "lib/Kconfig.debug"
1020
1021 config DEBUG_HWERR
1022         bool "Hardware error interrupt debugging"
1023         depends on DEBUG_KERNEL
1024         help
1025           When enabled, the hardware error interrupt is never disabled, and
1026           will happen immediately when an error condition occurs.  This comes
1027           at a slight cost in code size, but is necessary if you are getting
1028           hardware error interrupts and need to know where they are coming
1029           from.
1030
1031 config DEBUG_ICACHE_CHECK
1032         bool "Check Instruction cache coherancy"
1033         depends on DEBUG_KERNEL
1034         depends on DEBUG_HWERR
1035         help
1036           Say Y here if you are getting wierd unexplained errors. This will
1037           ensure that icache is what SDRAM says it should be, by doing a
1038           byte wise comparision between SDRAM and instruction cache. This
1039           also relocates the irq_panic() function to L1 memory, (which is
1040           un-cached).
1041
1042 config DEBUG_KERNEL_START
1043         bool "Debug Kernel Startup"
1044         depends on DEBUG_KERNEL
1045         help
1046           Say Y here to put in an mini-execption handler before the kernel
1047           replaces the bootloader exception handler. This will stop kernels
1048           from dieing at startup with no visible error messages.
1049
1050 config DEBUG_SERIAL_EARLY_INIT
1051         bool "Initialize serial driver early"
1052         default n
1053         depends on SERIAL_BFIN
1054         help
1055           Say Y here if you want to get kernel output early when kernel
1056           crashes before the normal console initialization. If this option
1057           is enable, console output will always go to the ttyBF0, no matter
1058           what kernel boot paramters you set.
1059
1060 config DEBUG_HUNT_FOR_ZERO
1061         bool "Catch NULL pointer reads/writes"
1062         default y
1063         help
1064           Say Y here to catch reads/writes to anywhere in the memory range
1065           from 0x0000 - 0x0FFF (the first 4k) of memory.  This is useful in
1066           catching common programming errors such as NULL pointer dereferences.
1067
1068           Misbehaving applications will be killed (generate a SEGV) while the
1069           kernel will trigger a panic.
1070
1071           Enabling this option will take up an extra entry in CPLB table.
1072           Otherwise, there is no extra overhead.
1073
1074 config DEBUG_BFIN_HWTRACE_ON
1075         bool "Turn on Blackfin's Hardware Trace"
1076         default y
1077         help
1078           All Blackfins include a Trace Unit which stores a history of the last
1079           16 changes in program flow taken by the program sequencer. The history
1080           allows the user to recreate the program sequencer’s recent path. This
1081           can be handy when an application dies - we print out the execution
1082           path of how it got to the offending instruction.
1083
1084           By turning this off, you may save a tiny amount of power.
1085
1086 choice
1087         prompt "Omit loop Tracing"
1088         default DEBUG_BFIN_HWTRACE_COMPRESSION_OFF
1089         depends on DEBUG_BFIN_HWTRACE_ON
1090         help
1091           The trace buffer can be configured to omit recording of changes in
1092           program flow that match either the last entry or one of the last
1093           two entries. Omitting one of these entries from the record prevents
1094           the trace buffer from overflowing because of any sort of loop (for, do
1095           while, etc) in the program.
1096
1097           Because zero-overhead Hardware loops are not recorded in the trace buffer,
1098           this feature can be used to prevent trace overflow from loops that
1099           are nested four deep.
1100
1101 config DEBUG_BFIN_HWTRACE_COMPRESSION_OFF
1102         bool "Trace all Loops"
1103         help
1104           The trace buffer records all changes of flow
1105
1106 config DEBUG_BFIN_HWTRACE_COMPRESSION_ONE
1107         bool "Compress single-level loops"
1108         help
1109           The trace buffer does not record single loops - helpful if trace
1110           is spinning on a while or do loop.
1111
1112 config DEBUG_BFIN_HWTRACE_COMPRESSION_TWO
1113         bool "Compress two-level loops"
1114         help
1115           The trace buffer does not record loops two levels deep. Helpful if
1116           the trace is spinning in a nested loop
1117
1118 endchoice
1119
1120 config DEBUG_BFIN_HWTRACE_COMPRESSION
1121         int
1122         depends on DEBUG_BFIN_HWTRACE_ON
1123         default 0 if DEBUG_BFIN_HWTRACE_COMPRESSION_OFF
1124         default 1 if DEBUG_BFIN_HWTRACE_COMPRESSION_ONE
1125         default 2 if DEBUG_BFIN_HWTRACE_COMPRESSION_TWO
1126
1127
1128 config DEBUG_BFIN_HWTRACE_EXPAND
1129         bool "Expand Trace Buffer greater than 16 entries"
1130         depends on DEBUG_BFIN_HWTRACE_ON
1131         default n
1132         help
1133           By selecting this option, every time the 16 hardware entries in
1134           the Blackfin's HW Trace buffer are full, the kernel will move them
1135           into a software buffer, for dumping when there is an issue. This
1136           has a great impact on performance, (an interrupt every 16 change of
1137           flows) and should normally be turned off, except in those nasty
1138           debugging sessions
1139
1140 config DEBUG_BFIN_HWTRACE_EXPAND_LEN
1141         int "Size of Trace buffer (in power of 2k)"
1142         range 0 4
1143         depends on DEBUG_BFIN_HWTRACE_EXPAND
1144         default 1
1145         help
1146           This sets the size of the software buffer that the trace information
1147           is kept in.
1148           0 for (2^0)  1k, or 256 entries,
1149           1 for (2^1)  2k, or 512 entries,
1150           2 for (2^2)  4k, or 1024 entries,
1151           3 for (2^3)  8k, or 2048 entries,
1152           4 for (2^4) 16k, or 4096 entries
1153
1154 config DEBUG_BFIN_NO_KERN_HWTRACE
1155         bool "Trace user apps (turn off hwtrace in kernel)"
1156         depends on DEBUG_BFIN_HWTRACE_ON
1157         default n
1158         help
1159           Some pieces of the kernel contain a lot of flow changes which can
1160           quickly fill up the hardware trace buffer.  When debugging crashes,
1161           the hardware trace may indicate that the problem lies in kernel
1162           space when in reality an application is buggy.
1163
1164           Say Y here to disable hardware tracing in some known "jumpy" pieces
1165           of code so that the trace buffer will extend further back.
1166
1167 config EARLY_PRINTK
1168         bool "Early printk"
1169         default n
1170         help
1171           This option enables special console drivers which allow the kernel
1172           to print messages very early in the bootup process.
1173
1174           This is useful for kernel debugging when your machine crashes very
1175           early before the console code is initialized. After enabling this
1176           feature, you must add "earlyprintk=serial,uart0,57600" to the
1177           command line (bootargs). It is safe to say Y here in all cases, as
1178           all of this lives in the init section and is thrown away after the
1179           kernel boots completely.
1180
1181 config DUAL_CORE_TEST_MODULE
1182         tristate "Dual Core Test Module"
1183         depends on (BF561)
1184         default n
1185         help
1186           Say Y here to build-in dual core test module for dual core test.
1187
1188 config CPLB_INFO
1189         bool "Display the CPLB information"
1190         help
1191           Display the CPLB information.
1192
1193 config ACCESS_CHECK
1194         bool "Check the user pointer address"
1195         default y
1196         help
1197           Usually the pointer transfer from user space is checked to see if its
1198           address is in the kernel space.
1199
1200           Say N here to disable that check to improve the performance.
1201
1202 endmenu
1203
1204 source "security/Kconfig"
1205
1206 source "crypto/Kconfig"
1207
1208 source "lib/Kconfig"