| # |
| # For a description of the syntax of this configuration file, |
| # see Documentation/kbuild/kconfig-language.txt. |
| # |
| |
| mainmenu "uClinux/Blackfin (w/o MMU) Kernel Configuration" |
| |
| config MMU |
| bool |
| default n |
| |
| config FPU |
| bool |
| default n |
| |
| config RWSEM_GENERIC_SPINLOCK |
| bool |
| default y |
| |
| config RWSEM_XCHGADD_ALGORITHM |
| bool |
| default n |
| |
| config BLACKFIN |
| bool |
| default y |
| |
| config ZONE_DMA |
| bool |
| default y |
| |
| config BFIN |
| bool |
| default y |
| |
| config SEMAPHORE_SLEEPERS |
| bool |
| default y |
| |
| config GENERIC_FIND_NEXT_BIT |
| bool |
| default y |
| |
| config GENERIC_HWEIGHT |
| bool |
| default y |
| |
| config GENERIC_HARDIRQS |
| bool |
| default y |
| |
| config GENERIC_IRQ_PROBE |
| bool |
| default y |
| |
| config GENERIC_TIME |
| bool |
| default n |
| |
| config GENERIC_GPIO |
| bool |
| default y |
| |
| config FORCE_MAX_ZONEORDER |
| int |
| default "14" |
| |
| config GENERIC_CALIBRATE_DELAY |
| bool |
| default y |
| |
| config IRQCHIP_DEMUX_GPIO |
| bool |
| depends on (BF52x || BF53x || BF561 || BF54x) |
| default y |
| |
| source "init/Kconfig" |
| source "kernel/Kconfig.preempt" |
| |
| menu "Blackfin Processor Options" |
| |
| comment "Processor and Board Settings" |
| |
| choice |
| prompt "CPU" |
| default BF533 |
| |
| config BF522 |
| bool "BF522" |
| help |
| BF522 Processor Support. |
| |
| config BF525 |
| bool "BF525" |
| help |
| BF525 Processor Support. |
| |
| config BF527 |
| bool "BF527" |
| help |
| BF527 Processor Support. |
| |
| config BF531 |
| bool "BF531" |
| help |
| BF531 Processor Support. |
| |
| config BF532 |
| bool "BF532" |
| help |
| BF532 Processor Support. |
| |
| config BF533 |
| bool "BF533" |
| help |
| BF533 Processor Support. |
| |
| config BF534 |
| bool "BF534" |
| help |
| BF534 Processor Support. |
| |
| config BF536 |
| bool "BF536" |
| help |
| BF536 Processor Support. |
| |
| config BF537 |
| bool "BF537" |
| help |
| BF537 Processor Support. |
| |
| config BF542 |
| bool "BF542" |
| help |
| BF542 Processor Support. |
| |
| config BF544 |
| bool "BF544" |
| help |
| BF544 Processor Support. |
| |
| config BF548 |
| bool "BF548" |
| help |
| BF548 Processor Support. |
| |
| config BF549 |
| bool "BF549" |
| help |
| BF549 Processor Support. |
| |
| config BF561 |
| bool "BF561" |
| help |
| Not Supported Yet - Work in progress - BF561 Processor Support. |
| |
| endchoice |
| |
| choice |
| prompt "Silicon Rev" |
| default BF_REV_0_1 if BF527 |
| default BF_REV_0_2 if BF537 |
| default BF_REV_0_3 if BF533 |
| default BF_REV_0_0 if BF549 |
| |
| config BF_REV_0_0 |
| bool "0.0" |
| depends on (BF549 || BF527) |
| |
| config BF_REV_0_1 |
| bool "0.2" |
| depends on (BF549 || BF527) |
| |
| config BF_REV_0_2 |
| bool "0.2" |
| depends on (BF537 || BF536 || BF534) |
| |
| config BF_REV_0_3 |
| bool "0.3" |
| depends on (BF561 || BF537 || BF536 || BF534 || BF533 || BF532 || BF531) |
| |
| config BF_REV_0_4 |
| bool "0.4" |
| depends on (BF561 || BF533 || BF532 || BF531) |
| |
| config BF_REV_0_5 |
| bool "0.5" |
| depends on (BF561 || BF533 || BF532 || BF531) |
| |
| config BF_REV_ANY |
| bool "any" |
| |
| config BF_REV_NONE |
| bool "none" |
| |
| endchoice |
| |
| config BF52x |
| bool |
| depends on (BF522 || BF525 || BF527) |
| default y |
| |
| config BF53x |
| bool |
| depends on (BF531 || BF532 || BF533 || BF534 || BF536 || BF537) |
| default y |
| |
| config BF54x |
| bool |
| depends on (BF542 || BF544 || BF548 || BF549) |
| default y |
| |
| config BFIN_DUAL_CORE |
| bool |
| depends on (BF561) |
| default y |
| |
| config BFIN_SINGLE_CORE |
| bool |
| depends on !BFIN_DUAL_CORE |
| default y |
| |
| choice |
| prompt "System type" |
| default BFIN533_STAMP |
| help |
| Do NOT change the board here. Please use the top level |
| configuration to ensure that all the other settings are |
| correct. |
| |
| config BFIN527_EZKIT |
| bool "BF527-EZKIT" |
| depends on (BF522 || BF525 || BF527) |
| help |
| BF533-EZKIT-LITE board Support. |
| |
| config BFIN533_EZKIT |
| bool "BF533-EZKIT" |
| depends on (BF533 || BF532 || BF531) |
| help |
| BF533-EZKIT-LITE board Support. |
| |
| config BFIN533_STAMP |
| bool "BF533-STAMP" |
| depends on (BF533 || BF532 || BF531) |
| help |
| BF533-STAMP board Support. |
| |
| config BFIN537_STAMP |
| bool "BF537-STAMP" |
| depends on (BF537 || BF536 || BF534) |
| help |
| BF537-STAMP board Support. |
| |
| config BFIN533_BLUETECHNIX_CM |
| bool "Bluetechnix CM-BF533" |
| depends on (BF533) |
| help |
| CM-BF533 support for EVAL- and DEV-Board. |
| |
| config BFIN537_BLUETECHNIX_CM |
| bool "Bluetechnix CM-BF537" |
| depends on (BF537) |
| help |
| CM-BF537 support for EVAL- and DEV-Board. |
| |
| config BFIN548_EZKIT |
| bool "BF548-EZKIT" |
| depends on (BF548 || BF549) |
| help |
| BFIN548-EZKIT board Support. |
| |
| config BFIN561_BLUETECHNIX_CM |
| bool "Bluetechnix CM-BF561" |
| depends on (BF561) |
| help |
| CM-BF561 support for EVAL- and DEV-Board. |
| |
| config BFIN561_EZKIT |
| bool "BF561-EZKIT" |
| depends on (BF561) |
| help |
| BF561-EZKIT-LITE board Support. |
| |
| config BFIN561_TEPLA |
| bool "BF561-TEPLA" |
| depends on (BF561) |
| help |
| BF561-TEPLA board Support. |
| |
| config PNAV10 |
| bool "PNAV 1.0 board" |
| depends on (BF537) |
| help |
| PNAV 1.0 board Support. |
| |
| config H8606_HVSISTEMAS |
| bool "HV Sistemas H8606" |
| depends on (BF532) |
| help |
| HV Sistemas H8606 board support. |
| |
| config GENERIC_BOARD |
| bool "Custom" |
| depends on (BF537 || BF536 \ |
| || BF534 || BF561 || BF535 || BF533 || BF532 || BF531) |
| help |
| GENERIC or Custom board Support. |
| |
| endchoice |
| |
| config MEM_GENERIC_BOARD |
| bool |
| depends on GENERIC_BOARD |
| default y |
| |
| config MEM_MT48LC64M4A2FB_7E |
| bool |
| depends on (BFIN533_STAMP) |
| default y |
| |
| config MEM_MT48LC16M16A2TG_75 |
| bool |
| depends on (BFIN533_EZKIT || BFIN561_EZKIT \ |
| || BFIN533_BLUETECHNIX_CM || BFIN537_BLUETECHNIX_CM \ |
| || H8606_HVSISTEMAS) |
| default y |
| |
| config MEM_MT48LC32M8A2_75 |
| bool |
| depends on (BFIN537_STAMP || PNAV10) |
| default y |
| |
| config MEM_MT48LC8M32B2B5_7 |
| bool |
| depends on (BFIN561_BLUETECHNIX_CM) |
| default y |
| |
| config MEM_MT48LC32M16A2TG_75 |
| bool |
| depends on (BFIN527_EZKIT) |
| default y |
| |
| config BFIN_SHARED_FLASH_ENET |
| bool |
| depends on (BFIN533_STAMP) |
| default y |
| |
| source "arch/blackfin/mach-bf527/Kconfig" |
| source "arch/blackfin/mach-bf533/Kconfig" |
| source "arch/blackfin/mach-bf561/Kconfig" |
| source "arch/blackfin/mach-bf537/Kconfig" |
| source "arch/blackfin/mach-bf548/Kconfig" |
| |
| menu "Board customizations" |
| |
| config CMDLINE_BOOL |
| bool "Default bootloader kernel arguments" |
| |
| config CMDLINE |
| string "Initial kernel command string" |
| depends on CMDLINE_BOOL |
| default "console=ttyBF0,57600" |
| help |
| If you don't have a boot loader capable of passing a command line string |
| to the kernel, you may specify one here. As a minimum, you should specify |
| the memory size and the root device (e.g., mem=8M, root=/dev/nfs). |
| |
| comment "Clock/PLL Setup" |
| |
| config CLKIN_HZ |
| int "Crystal Frequency in Hz" |
| default "11059200" if BFIN533_STAMP |
| default "27000000" if BFIN533_EZKIT |
| default "25000000" if (BFIN537_STAMP || BFIN527_EZKIT || H8606_HVSISTEMAS) |
| default "30000000" if BFIN561_EZKIT |
| default "24576000" if PNAV10 |
| help |
| The frequency of CLKIN crystal oscillator on the board in Hz. |
| |
| config BFIN_KERNEL_CLOCK |
| bool "Re-program Clocks while Kernel boots?" |
| default n |
| help |
| This option decides if kernel clocks are re-programed from the |
| bootloader settings. If the clocks are not set, the SDRAM settings |
| are also not changed, and the Bootloader does 100% of the hardware |
| configuration. |
| |
| config PLL_BYPASS |
| bool "Bypass PLL" |
| depends on BFIN_KERNEL_CLOCK |
| default n |
| |
| config CLKIN_HALF |
| bool "Half Clock In" |
| depends on BFIN_KERNEL_CLOCK && (! PLL_BYPASS) |
| default n |
| help |
| If this is set the clock will be divided by 2, before it goes to the PLL. |
| |
| config VCO_MULT |
| int "VCO Multiplier" |
| depends on BFIN_KERNEL_CLOCK && (! PLL_BYPASS) |
| range 1 64 |
| default "22" if BFIN533_EZKIT |
| default "45" if BFIN533_STAMP |
| default "20" if (BFIN537_STAMP || BFIN527_EZKIT) |
| default "22" if BFIN533_BLUETECHNIX_CM |
| default "20" if BFIN537_BLUETECHNIX_CM |
| default "20" if BFIN561_BLUETECHNIX_CM |
| default "20" if BFIN561_EZKIT |
| default "16" if H8606_HVSISTEMAS |
| help |
| This controls the frequency of the on-chip PLL. This can be between 1 and 64. |
| PLL Frequency = (Crystal Frequency) * (this setting) |
| |
| choice |
| prompt "Core Clock Divider" |
| depends on BFIN_KERNEL_CLOCK |
| default CCLK_DIV_1 |
| help |
| This sets the frequency of the core. It can be 1, 2, 4 or 8 |
| Core Frequency = (PLL frequency) / (this setting) |
| |
| config CCLK_DIV_1 |
| bool "1" |
| |
| config CCLK_DIV_2 |
| bool "2" |
| |
| config CCLK_DIV_4 |
| bool "4" |
| |
| config CCLK_DIV_8 |
| bool "8" |
| endchoice |
| |
| config SCLK_DIV |
| int "System Clock Divider" |
| depends on BFIN_KERNEL_CLOCK |
| range 1 15 |
| default 5 if BFIN533_EZKIT |
| default 5 if BFIN533_STAMP |
| default 4 if (BFIN537_STAMP || BFIN527_EZKIT) |
| default 5 if BFIN533_BLUETECHNIX_CM |
| default 4 if BFIN537_BLUETECHNIX_CM |
| default 4 if BFIN561_BLUETECHNIX_CM |
| default 5 if BFIN561_EZKIT |
| default 3 if H8606_HVSISTEMAS |
| help |
| This sets the frequency of the system clock (including SDRAM or DDR). |
| This can be between 1 and 15 |
| System Clock = (PLL frequency) / (this setting) |
| |
| # |
| # Max & Min Speeds for various Chips |
| # |
| config MAX_VCO_HZ |
| int |
| default 600000000 if BF522 |
| default 600000000 if BF525 |
| default 600000000 if BF527 |
| default 400000000 if BF531 |
| default 400000000 if BF532 |
| default 750000000 if BF533 |
| default 500000000 if BF534 |
| default 400000000 if BF536 |
| default 600000000 if BF537 |
| default 533000000 if BF538 |
| default 533000000 if BF539 |
| default 600000000 if BF542 |
| default 533000000 if BF544 |
| default 533000000 if BF549 |
| default 600000000 if BF561 |
| |
| config MIN_VCO_HZ |
| int |
| default 50000000 |
| |
| config MAX_SCLK_HZ |
| int |
| default 133000000 |
| |
| config MIN_SCLK_HZ |
| int |
| default 27000000 |
| |
| comment "Kernel Timer/Scheduler" |
| |
| source kernel/Kconfig.hz |
| |
| comment "Memory Setup" |
| |
| config MEM_SIZE |
| int "SDRAM Memory Size in MBytes" |
| default 32 if BFIN533_EZKIT |
| default 64 if BFIN527_EZKIT |
| default 64 if BFIN537_STAMP |
| default 64 if BFIN561_EZKIT |
| default 128 if BFIN533_STAMP |
| default 64 if PNAV10 |
| default 32 if H8606_HVSISTEMAS |
| |
| config MEM_ADD_WIDTH |
| int "SDRAM Memory Address Width" |
| default 9 if BFIN533_EZKIT |
| default 9 if BFIN561_EZKIT |
| default 9 if H8606_HVSISTEMAS |
| default 10 if BFIN527_EZKIT |
| default 10 if BFIN537_STAMP |
| default 11 if BFIN533_STAMP |
| default 10 if PNAV10 |
| |
| config ENET_FLASH_PIN |
| int "PF port/pin used for flash and ethernet sharing" |
| depends on (BFIN533_STAMP) |
| default 0 |
| help |
| PF port/pin used for flash and ethernet sharing to allow other PF |
| pins to be used on other platforms without having to touch common |
| code. |
| For example: PF0 --> 0,PF1 --> 1,PF2 --> 2, etc. |
| |
| config BOOT_LOAD |
| hex "Kernel load address for booting" |
| default "0x1000" |
| range 0x1000 0x20000000 |
| help |
| This option allows you to set the load address of the kernel. |
| This can be useful if you are on a board which has a small amount |
| of memory or you wish to reserve some memory at the beginning of |
| the address space. |
| |
| Note that you need to keep this value above 4k (0x1000) as this |
| memory region is used to capture NULL pointer references as well |
| as some core kernel functions. |
| |
| comment "LED Status Indicators" |
| depends on (BFIN533_STAMP || BFIN533_BLUETECHNIX_CM) |
| |
| config BFIN_ALIVE_LED |
| bool "Enable Board Alive" |
| depends on (BFIN533_STAMP || BFIN533_BLUETECHNIX_CM) |
| default n |
| help |
| Blink the LEDs you select when the kernel is running. Helps detect |
| a hung kernel. |
| |
| config BFIN_ALIVE_LED_NUM |
| int "LED" |
| depends on BFIN_ALIVE_LED |
| range 1 3 if BFIN533_STAMP |
| default "3" if BFIN533_STAMP |
| help |
| Select the LED (marked on the board) for you to blink. |
| |
| config BFIN_IDLE_LED |
| bool "Enable System Load/Idle LED" |
| depends on (BFIN533_STAMP || BFIN533_BLUETECHNIX_CM) |
| default n |
| help |
| Blinks the LED you select when to determine kernel load. |
| |
| config BFIN_IDLE_LED_NUM |
| int "LED" |
| depends on BFIN_IDLE_LED |
| range 1 3 if BFIN533_STAMP |
| default "2" if BFIN533_STAMP |
| help |
| Select the LED (marked on the board) for you to blink. |
| |
| choice |
| prompt "Blackfin Exception Scratch Register" |
| default BFIN_SCRATCH_REG_RETN |
| help |
| Select the resource to reserve for the Exception handler: |
| - RETN: Non-Maskable Interrupt (NMI) |
| - RETE: Exception Return (JTAG/ICE) |
| - CYCLES: Performance counter |
| |
| If you are unsure, please select "RETN". |
| |
| config BFIN_SCRATCH_REG_RETN |
| bool "RETN" |
| help |
| Use the RETN register in the Blackfin exception handler |
| as a stack scratch register. This means you cannot |
| safely use NMI on the Blackfin while running Linux, but |
| you can debug the system with a JTAG ICE and use the |
| CYCLES performance registers. |
| |
| If you are unsure, please select "RETN". |
| |
| config BFIN_SCRATCH_REG_RETE |
| bool "RETE" |
| help |
| Use the RETE register in the Blackfin exception handler |
| as a stack scratch register. This means you cannot |
| safely use a JTAG ICE while debugging a Blackfin board, |
| but you can safely use the CYCLES performance registers |
| and the NMI. |
| |
| If you are unsure, please select "RETN". |
| |
| config BFIN_SCRATCH_REG_CYCLES |
| bool "CYCLES" |
| help |
| Use the CYCLES register in the Blackfin exception handler |
| as a stack scratch register. This means you cannot |
| safely use the CYCLES performance registers on a Blackfin |
| board at anytime, but you can debug the system with a JTAG |
| ICE and use the NMI. |
| |
| If you are unsure, please select "RETN". |
| |
| endchoice |
| |
| # |
| # Sorry - but you need to put the hex address here - |
| # |
| |
| # Flag Data register |
| config BFIN_ALIVE_LED_PORT |
| hex |
| default 0xFFC00700 if (BFIN533_STAMP) |
| |
| # Peripheral Flag Direction Register |
| config BFIN_ALIVE_LED_DPORT |
| hex |
| default 0xFFC00730 if (BFIN533_STAMP) |
| |
| config BFIN_ALIVE_LED_PIN |
| hex |
| default 0x04 if (BFIN533_STAMP && BFIN_ALIVE_LED_NUM = 1) |
| default 0x08 if (BFIN533_STAMP && BFIN_ALIVE_LED_NUM = 2) |
| default 0x10 if (BFIN533_STAMP && BFIN_ALIVE_LED_NUM = 3) |
| |
| config BFIN_IDLE_LED_PORT |
| hex |
| default 0xFFC00700 if (BFIN533_STAMP) |
| |
| # Peripheral Flag Direction Register |
| config BFIN_IDLE_LED_DPORT |
| hex |
| default 0xFFC00730 if (BFIN533_STAMP) |
| |
| config BFIN_IDLE_LED_PIN |
| hex |
| default 0x04 if (BFIN533_STAMP && BFIN_IDLE_LED_NUM = 1) |
| default 0x08 if (BFIN533_STAMP && BFIN_IDLE_LED_NUM = 2) |
| default 0x10 if (BFIN533_STAMP && BFIN_IDLE_LED_NUM = 3) |
| |
| endmenu |
| |
| |
| menu "Blackfin Kernel Optimizations" |
| |
| comment "Memory Optimizations" |
| |
| config I_ENTRY_L1 |
| bool "Locate interrupt entry code in L1 Memory" |
| default y |
| help |
| If enabled, interrupt entry code (STORE/RESTORE CONTEXT) is linked |
| into L1 instruction memory. (less latency) |
| |
| config EXCPT_IRQ_SYSC_L1 |
| bool "Locate entire ASM lowlevel exception / interrupt - Syscall and CPLB handler code in L1 Memory" |
| default y |
| help |
| If enabled, the entire ASM lowlevel exception and interrupt entry code |
| (STORE/RESTORE CONTEXT) is linked into L1 instruction memory. |
| (less latency) |
| |
| config DO_IRQ_L1 |
| bool "Locate frequently called do_irq dispatcher function in L1 Memory" |
| default y |
| help |
| If enabled, the frequently called do_irq dispatcher function is linked |
| into L1 instruction memory. (less latency) |
| |
| config CORE_TIMER_IRQ_L1 |
| bool "Locate frequently called timer_interrupt() function in L1 Memory" |
| default y |
| help |
| If enabled, the frequently called timer_interrupt() function is linked |
| into L1 instruction memory. (less latency) |
| |
| config IDLE_L1 |
| bool "Locate frequently idle function in L1 Memory" |
| default y |
| help |
| If enabled, the frequently called idle function is linked |
| into L1 instruction memory. (less latency) |
| |
| config SCHEDULE_L1 |
| bool "Locate kernel schedule function in L1 Memory" |
| default y |
| help |
| If enabled, the frequently called kernel schedule is linked |
| into L1 instruction memory. (less latency) |
| |
| config ARITHMETIC_OPS_L1 |
| bool "Locate kernel owned arithmetic functions in L1 Memory" |
| default y |
| help |
| If enabled, arithmetic functions are linked |
| into L1 instruction memory. (less latency) |
| |
| config ACCESS_OK_L1 |
| bool "Locate access_ok function in L1 Memory" |
| default y |
| help |
| If enabled, the access_ok function is linked |
| into L1 instruction memory. (less latency) |
| |
| config MEMSET_L1 |
| bool "Locate memset function in L1 Memory" |
| default y |
| help |
| If enabled, the memset function is linked |
| into L1 instruction memory. (less latency) |
| |
| config MEMCPY_L1 |
| bool "Locate memcpy function in L1 Memory" |
| default y |
| help |
| If enabled, the memcpy function is linked |
| into L1 instruction memory. (less latency) |
| |
| config SYS_BFIN_SPINLOCK_L1 |
| bool "Locate sys_bfin_spinlock function in L1 Memory" |
| default y |
| help |
| If enabled, sys_bfin_spinlock function is linked |
| into L1 instruction memory. (less latency) |
| |
| config IP_CHECKSUM_L1 |
| bool "Locate IP Checksum function in L1 Memory" |
| default n |
| help |
| If enabled, the IP Checksum function is linked |
| into L1 instruction memory. (less latency) |
| |
| config CACHELINE_ALIGNED_L1 |
| bool "Locate cacheline_aligned data to L1 Data Memory" |
| default y if !BF54x |
| default n if BF54x |
| depends on !BF531 |
| help |
| If enabled, cacheline_anligned data is linked |
| into L1 data memory. (less latency) |
| |
| config SYSCALL_TAB_L1 |
| bool "Locate Syscall Table L1 Data Memory" |
| default n |
| depends on !BF531 |
| help |
| If enabled, the Syscall LUT is linked |
| into L1 data memory. (less latency) |
| |
| config CPLB_SWITCH_TAB_L1 |
| bool "Locate CPLB Switch Tables L1 Data Memory" |
| default n |
| depends on !BF531 |
| help |
| If enabled, the CPLB Switch Tables are linked |
| into L1 data memory. (less latency) |
| |
| endmenu |
| |
| |
| choice |
| prompt "Kernel executes from" |
| help |
| Choose the memory type that the kernel will be running in. |
| |
| config RAMKERNEL |
| bool "RAM" |
| help |
| The kernel will be resident in RAM when running. |
| |
| config ROMKERNEL |
| bool "ROM" |
| help |
| The kernel will be resident in FLASH/ROM when running. |
| |
| endchoice |
| |
| source "mm/Kconfig" |
| |
| config LARGE_ALLOCS |
| bool "Allow allocating large blocks (> 1MB) of memory" |
| help |
| Allow the slab memory allocator to keep chains for very large |
| memory sizes - upto 32MB. You may need this if your system has |
| a lot of RAM, and you need to able to allocate very large |
| contiguous chunks. If unsure, say N. |
| |
| config BFIN_GPTIMERS |
| tristate "Enable Blackfin General Purpose Timers API" |
| default n |
| help |
| Enable support for the General Purpose Timers API. If you |
| are unsure, say N. |
| |
| To compile this driver as a module, choose M here: the module |
| will be called gptimers.ko. |
| |
| config BFIN_DMA_5XX |
| bool "Enable DMA Support" |
| depends on (BF52x || BF53x || BF561 || BF54x) |
| default y |
| help |
| DMA driver for BF5xx. |
| |
| choice |
| prompt "Uncached SDRAM region" |
| default DMA_UNCACHED_1M |
| depends on BFIN_DMA_5XX |
| config DMA_UNCACHED_2M |
| bool "Enable 2M DMA region" |
| config DMA_UNCACHED_1M |
| bool "Enable 1M DMA region" |
| config DMA_UNCACHED_NONE |
| bool "Disable DMA region" |
| endchoice |
| |
| |
| comment "Cache Support" |
| config BFIN_ICACHE |
| bool "Enable ICACHE" |
| config BFIN_DCACHE |
| bool "Enable DCACHE" |
| config BFIN_DCACHE_BANKA |
| bool "Enable only 16k BankA DCACHE - BankB is SRAM" |
| depends on BFIN_DCACHE && !BF531 |
| default n |
| config BFIN_ICACHE_LOCK |
| bool "Enable Instruction Cache Locking" |
| |
| choice |
| prompt "Policy" |
| depends on BFIN_DCACHE |
| default BFIN_WB |
| config BFIN_WB |
| bool "Write back" |
| help |
| Write Back Policy: |
| Cached data will be written back to SDRAM only when needed. |
| This can give a nice increase in performance, but beware of |
| broken drivers that do not properly invalidate/flush their |
| cache. |
| |
| Write Through Policy: |
| Cached data will always be written back to SDRAM when the |
| cache is updated. This is a completely safe setting, but |
| performance is worse than Write Back. |
| |
| If you are unsure of the options and you want to be safe, |
| then go with Write Through. |
| |
| config BFIN_WT |
| bool "Write through" |
| help |
| Write Back Policy: |
| Cached data will be written back to SDRAM only when needed. |
| This can give a nice increase in performance, but beware of |
| broken drivers that do not properly invalidate/flush their |
| cache. |
| |
| Write Through Policy: |
| Cached data will always be written back to SDRAM when the |
| cache is updated. This is a completely safe setting, but |
| performance is worse than Write Back. |
| |
| If you are unsure of the options and you want to be safe, |
| then go with Write Through. |
| |
| endchoice |
| |
| config L1_MAX_PIECE |
| int "Set the max L1 SRAM pieces" |
| default 16 |
| help |
| Set the max memory pieces for the L1 SRAM allocation algorithm. |
| Min value is 16. Max value is 1024. |
| |
| comment "Asynchonous Memory Configuration" |
| |
| menu "EBIU_AMGCTL Global Control" |
| config C_AMCKEN |
| bool "Enable CLKOUT" |
| default y |
| |
| config C_CDPRIO |
| bool "DMA has priority over core for ext. accesses" |
| depends on !BF54x |
| default n |
| |
| config C_B0PEN |
| depends on BF561 |
| bool "Bank 0 16 bit packing enable" |
| default y |
| |
| config C_B1PEN |
| depends on BF561 |
| bool "Bank 1 16 bit packing enable" |
| default y |
| |
| config C_B2PEN |
| depends on BF561 |
| bool "Bank 2 16 bit packing enable" |
| default y |
| |
| config C_B3PEN |
| depends on BF561 |
| bool "Bank 3 16 bit packing enable" |
| default n |
| |
| choice |
| prompt"Enable Asynchonous Memory Banks" |
| default C_AMBEN_ALL |
| |
| config C_AMBEN |
| bool "Disable All Banks" |
| |
| config C_AMBEN_B0 |
| bool "Enable Bank 0" |
| |
| config C_AMBEN_B0_B1 |
| bool "Enable Bank 0 & 1" |
| |
| config C_AMBEN_B0_B1_B2 |
| bool "Enable Bank 0 & 1 & 2" |
| |
| config C_AMBEN_ALL |
| bool "Enable All Banks" |
| endchoice |
| endmenu |
| |
| menu "EBIU_AMBCTL Control" |
| config BANK_0 |
| hex "Bank 0" |
| default 0x7BB0 |
| |
| config BANK_1 |
| hex "Bank 1" |
| default 0x7BB0 |
| |
| config BANK_2 |
| hex "Bank 2" |
| default 0x7BB0 |
| |
| config BANK_3 |
| hex "Bank 3" |
| default 0x99B3 |
| endmenu |
| |
| endmenu |
| |
| ############################################################################# |
| menu "Bus options (PCI, PCMCIA, EISA, MCA, ISA)" |
| |
| config PCI |
| bool "PCI support" |
| help |
| Support for PCI bus. |
| |
| source "drivers/pci/Kconfig" |
| |
| config HOTPLUG |
| bool "Support for hot-pluggable device" |
| help |
| Say Y here if you want to plug devices into your computer while |
| the system is running, and be able to use them quickly. In many |
| cases, the devices can likewise be unplugged at any time too. |
| |
| One well known example of this is PCMCIA- or PC-cards, credit-card |
| size devices such as network cards, modems or hard drives which are |
| plugged into slots found on all modern laptop computers. Another |
| example, used on modern desktops as well as laptops, is USB. |
| |
| Enable HOTPLUG and KMOD, and build a modular kernel. Get agent |
| software (at <http://linux-hotplug.sourceforge.net/>) and install it. |
| Then your kernel will automatically call out to a user mode "policy |
| agent" (/sbin/hotplug) to load modules and set up software needed |
| to use devices as you hotplug them. |
| |
| source "drivers/pcmcia/Kconfig" |
| |
| source "drivers/pci/hotplug/Kconfig" |
| |
| endmenu |
| |
| menu "Executable file formats" |
| |
| source "fs/Kconfig.binfmt" |
| |
| endmenu |
| |
| menu "Power management options" |
| source "kernel/power/Kconfig" |
| |
| choice |
| prompt "Select PM Wakeup Event Source" |
| default PM_WAKEUP_GPIO_BY_SIC_IWR |
| depends on PM |
| help |
| If you have a GPIO already configured as input with the corresponding PORTx_MASK |
| bit set - "Specify Wakeup Event by SIC_IWR value" |
| |
| config PM_WAKEUP_GPIO_BY_SIC_IWR |
| bool "Specify Wakeup Event by SIC_IWR value" |
| config PM_WAKEUP_BY_GPIO |
| bool "Cause Wakeup Event by GPIO" |
| config PM_WAKEUP_GPIO_API |
| bool "Configure Wakeup Event by PM GPIO API" |
| |
| endchoice |
| |
| config PM_WAKEUP_SIC_IWR |
| hex "Wakeup Events (SIC_IWR)" |
| depends on PM_WAKEUP_GPIO_BY_SIC_IWR |
| default 0x80000000 if (BF537 || BF536 || BF534) |
| default 0x100000 if (BF533 || BF532 || BF531) |
| |
| config PM_WAKEUP_GPIO_NUMBER |
| int "Wakeup GPIO number" |
| range 0 47 |
| depends on PM_WAKEUP_BY_GPIO |
| default 2 if BFIN537_STAMP |
| |
| choice |
| prompt "GPIO Polarity" |
| depends on PM_WAKEUP_BY_GPIO |
| default PM_WAKEUP_GPIO_POLAR_H |
| config PM_WAKEUP_GPIO_POLAR_H |
| bool "Active High" |
| config PM_WAKEUP_GPIO_POLAR_L |
| bool "Active Low" |
| config PM_WAKEUP_GPIO_POLAR_EDGE_F |
| bool "Falling EDGE" |
| config PM_WAKEUP_GPIO_POLAR_EDGE_R |
| bool "Rising EDGE" |
| config PM_WAKEUP_GPIO_POLAR_EDGE_B |
| bool "Both EDGE" |
| endchoice |
| |
| endmenu |
| |
| if (BF537 || BF533 || BF54x) |
| |
| menu "CPU Frequency scaling" |
| |
| source "drivers/cpufreq/Kconfig" |
| |
| config CPU_FREQ |
| bool |
| default n |
| help |
| If you want to enable this option, you should select the |
| DPMC driver from Character Devices. |
| endmenu |
| |
| endif |
| |
| source "net/Kconfig" |
| |
| source "drivers/Kconfig" |
| |
| source "fs/Kconfig" |
| |
| source "kernel/Kconfig.instrumentation" |
| |
| menu "Kernel hacking" |
| |
| source "lib/Kconfig.debug" |
| |
| config DEBUG_HWERR |
| bool "Hardware error interrupt debugging" |
| depends on DEBUG_KERNEL |
| help |
| When enabled, the hardware error interrupt is never disabled, and |
| will happen immediately when an error condition occurs. This comes |
| at a slight cost in code size, but is necessary if you are getting |
| hardware error interrupts and need to know where they are coming |
| from. |
| |
| config DEBUG_ICACHE_CHECK |
| bool "Check Instruction cache coherency" |
| depends on DEBUG_KERNEL |
| depends on DEBUG_HWERR |
| help |
| Say Y here if you are getting weird unexplained errors. This will |
| ensure that icache is what SDRAM says it should be by doing a |
| byte wise comparison between SDRAM and instruction cache. This |
| also relocates the irq_panic() function to L1 memory, (which is |
| un-cached). |
| |
| config DEBUG_HUNT_FOR_ZERO |
| bool "Catch NULL pointer reads/writes" |
| default y |
| help |
| Say Y here to catch reads/writes to anywhere in the memory range |
| from 0x0000 - 0x0FFF (the first 4k) of memory. This is useful in |
| catching common programming errors such as NULL pointer dereferences. |
| |
| Misbehaving applications will be killed (generate a SEGV) while the |
| kernel will trigger a panic. |
| |
| Enabling this option will take up an extra entry in CPLB table. |
| Otherwise, there is no extra overhead. |
| |
| config DEBUG_BFIN_HWTRACE_ON |
| bool "Turn on Blackfin's Hardware Trace" |
| default y |
| help |
| All Blackfins include a Trace Unit which stores a history of the last |
| 16 changes in program flow taken by the program sequencer. The history |
| allows the user to recreate the program sequencer’s recent path. This |
| can be handy when an application dies - we print out the execution |
| path of how it got to the offending instruction. |
| |
| By turning this off, you may save a tiny amount of power. |
| |
| choice |
| prompt "Omit loop Tracing" |
| default DEBUG_BFIN_HWTRACE_COMPRESSION_OFF |
| depends on DEBUG_BFIN_HWTRACE_ON |
| help |
| The trace buffer can be configured to omit recording of changes in |
| program flow that match either the last entry or one of the last |
| two entries. Omitting one of these entries from the record prevents |
| the trace buffer from overflowing because of any sort of loop (for, do |
| while, etc) in the program. |
| |
| Because zero-overhead Hardware loops are not recorded in the trace buffer, |
| this feature can be used to prevent trace overflow from loops that |
| are nested four deep. |
| |
| config DEBUG_BFIN_HWTRACE_COMPRESSION_OFF |
| bool "Trace all Loops" |
| help |
| The trace buffer records all changes of flow |
| |
| config DEBUG_BFIN_HWTRACE_COMPRESSION_ONE |
| bool "Compress single-level loops" |
| help |
| The trace buffer does not record single loops - helpful if trace |
| is spinning on a while or do loop. |
| |
| config DEBUG_BFIN_HWTRACE_COMPRESSION_TWO |
| bool "Compress two-level loops" |
| help |
| The trace buffer does not record loops two levels deep. Helpful if |
| the trace is spinning in a nested loop |
| |
| endchoice |
| |
| config DEBUG_BFIN_HWTRACE_COMPRESSION |
| int |
| depends on DEBUG_BFIN_HWTRACE_ON |
| default 0 if DEBUG_BFIN_HWTRACE_COMPRESSION_OFF |
| default 1 if DEBUG_BFIN_HWTRACE_COMPRESSION_ONE |
| default 2 if DEBUG_BFIN_HWTRACE_COMPRESSION_TWO |
| |
| |
| config DEBUG_BFIN_HWTRACE_EXPAND |
| bool "Expand Trace Buffer greater than 16 entries" |
| depends on DEBUG_BFIN_HWTRACE_ON |
| default n |
| help |
| By selecting this option, every time the 16 hardware entries in |
| the Blackfin's HW Trace buffer are full, the kernel will move them |
| into a software buffer, for dumping when there is an issue. This |
| has a great impact on performance, (an interrupt every 16 change of |
| flows) and should normally be turned off, except in those nasty |
| debugging sessions |
| |
| config DEBUG_BFIN_HWTRACE_EXPAND_LEN |
| int "Size of Trace buffer (in power of 2k)" |
| range 0 4 |
| depends on DEBUG_BFIN_HWTRACE_EXPAND |
| default 1 |
| help |
| This sets the size of the software buffer that the trace information |
| is kept in. |
| 0 for (2^0) 1k, or 256 entries, |
| 1 for (2^1) 2k, or 512 entries, |
| 2 for (2^2) 4k, or 1024 entries, |
| 3 for (2^3) 8k, or 2048 entries, |
| 4 for (2^4) 16k, or 4096 entries |
| |
| config DEBUG_BFIN_NO_KERN_HWTRACE |
| bool "Trace user apps (turn off hwtrace in kernel)" |
| depends on DEBUG_BFIN_HWTRACE_ON |
| default n |
| help |
| Some pieces of the kernel contain a lot of flow changes which can |
| quickly fill up the hardware trace buffer. When debugging crashes, |
| the hardware trace may indicate that the problem lies in kernel |
| space when in reality an application is buggy. |
| |
| Say Y here to disable hardware tracing in some known "jumpy" pieces |
| of code so that the trace buffer will extend further back. |
| |
| config EARLY_PRINTK |
| bool "Early printk" |
| default n |
| help |
| This option enables special console drivers which allow the kernel |
| to print messages very early in the bootup process. |
| |
| This is useful for kernel debugging when your machine crashes very |
| early before the console code is initialized. After enabling this |
| feature, you must add "earlyprintk=serial,uart0,57600" to the |
| command line (bootargs). It is safe to say Y here in all cases, as |
| all of this lives in the init section and is thrown away after the |
| kernel boots completely. |
| |
| config DUAL_CORE_TEST_MODULE |
| tristate "Dual Core Test Module" |
| depends on (BF561) |
| default n |
| help |
| Say Y here to build-in dual core test module for dual core test. |
| |
| config CPLB_INFO |
| bool "Display the CPLB information" |
| help |
| Display the CPLB information. |
| |
| config ACCESS_CHECK |
| bool "Check the user pointer address" |
| default y |
| help |
| Usually the pointer transfer from user space is checked to see if its |
| address is in the kernel space. |
| |
| Say N here to disable that check to improve the performance. |
| |
| endmenu |
| |
| source "security/Kconfig" |
| |
| source "crypto/Kconfig" |
| |
| source "lib/Kconfig" |