| # |
| # For a description of the syntax of this configuration file, |
| # see Documentation/kbuild/kconfig-language.txt. |
| # |
| |
| mainmenu "Blackfin Kernel Configuration" |
| |
| config MMU |
| def_bool n |
| |
| config FPU |
| def_bool n |
| |
| config RWSEM_GENERIC_SPINLOCK |
| def_bool y |
| |
| config RWSEM_XCHGADD_ALGORITHM |
| def_bool n |
| |
| config BLACKFIN |
| def_bool y |
| select HAVE_FUNCTION_GRAPH_TRACER |
| select HAVE_FUNCTION_TRACER |
| select HAVE_IDE |
| select HAVE_KERNEL_GZIP |
| select HAVE_KERNEL_BZIP2 |
| select HAVE_KERNEL_LZMA |
| select HAVE_OPROFILE |
| select ARCH_WANT_OPTIONAL_GPIOLIB |
| |
| config GENERIC_CSUM |
| def_bool y |
| |
| config GENERIC_BUG |
| def_bool y |
| depends on BUG |
| |
| config ZONE_DMA |
| def_bool y |
| |
| config GENERIC_FIND_NEXT_BIT |
| def_bool y |
| |
| config GENERIC_HWEIGHT |
| def_bool y |
| |
| config GENERIC_HARDIRQS |
| def_bool y |
| |
| config GENERIC_IRQ_PROBE |
| def_bool y |
| |
| config GENERIC_HARDIRQS_NO__DO_IRQ |
| def_bool y |
| |
| config GENERIC_GPIO |
| def_bool y |
| |
| config FORCE_MAX_ZONEORDER |
| int |
| default "14" |
| |
| config GENERIC_CALIBRATE_DELAY |
| def_bool y |
| |
| config LOCKDEP_SUPPORT |
| def_bool y |
| |
| config STACKTRACE_SUPPORT |
| def_bool y |
| |
| config TRACE_IRQFLAGS_SUPPORT |
| def_bool y |
| |
| source "init/Kconfig" |
| |
| source "kernel/Kconfig.preempt" |
| |
| source "kernel/Kconfig.freezer" |
| |
| menu "Blackfin Processor Options" |
| |
| comment "Processor and Board Settings" |
| |
| choice |
| prompt "CPU" |
| default BF533 |
| |
| config BF512 |
| bool "BF512" |
| help |
| BF512 Processor Support. |
| |
| config BF514 |
| bool "BF514" |
| help |
| BF514 Processor Support. |
| |
| config BF516 |
| bool "BF516" |
| help |
| BF516 Processor Support. |
| |
| config BF518 |
| bool "BF518" |
| help |
| BF518 Processor Support. |
| |
| config BF522 |
| bool "BF522" |
| help |
| BF522 Processor Support. |
| |
| config BF523 |
| bool "BF523" |
| help |
| BF523 Processor Support. |
| |
| config BF524 |
| bool "BF524" |
| help |
| BF524 Processor Support. |
| |
| config BF525 |
| bool "BF525" |
| help |
| BF525 Processor Support. |
| |
| config BF526 |
| bool "BF526" |
| help |
| BF526 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 BF538 |
| bool "BF538" |
| help |
| BF538 Processor Support. |
| |
| config BF539 |
| bool "BF539" |
| help |
| BF539 Processor Support. |
| |
| config BF542 |
| bool "BF542" |
| help |
| BF542 Processor Support. |
| |
| config BF542M |
| bool "BF542m" |
| help |
| BF542 Processor Support. |
| |
| config BF544 |
| bool "BF544" |
| help |
| BF544 Processor Support. |
| |
| config BF544M |
| bool "BF544m" |
| help |
| BF544 Processor Support. |
| |
| config BF547 |
| bool "BF547" |
| help |
| BF547 Processor Support. |
| |
| config BF547M |
| bool "BF547m" |
| help |
| BF547 Processor Support. |
| |
| config BF548 |
| bool "BF548" |
| help |
| BF548 Processor Support. |
| |
| config BF548M |
| bool "BF548m" |
| help |
| BF548 Processor Support. |
| |
| config BF549 |
| bool "BF549" |
| help |
| BF549 Processor Support. |
| |
| config BF549M |
| bool "BF549m" |
| help |
| BF549 Processor Support. |
| |
| config BF561 |
| bool "BF561" |
| help |
| BF561 Processor Support. |
| |
| endchoice |
| |
| config SMP |
| depends on BF561 |
| select GENERIC_CLOCKEVENTS |
| bool "Symmetric multi-processing support" |
| ---help--- |
| This enables support for systems with more than one CPU, |
| like the dual core BF561. If you have a system with only one |
| CPU, say N. If you have a system with more than one CPU, say Y. |
| |
| If you don't know what to do here, say N. |
| |
| config NR_CPUS |
| int |
| depends on SMP |
| default 2 if BF561 |
| |
| config IRQ_PER_CPU |
| bool |
| depends on SMP |
| default y |
| |
| config BF_REV_MIN |
| int |
| default 0 if (BF51x || BF52x || (BF54x && !BF54xM)) |
| default 2 if (BF537 || BF536 || BF534) |
| default 3 if (BF561 || BF533 || BF532 || BF531 || BF54xM) |
| default 4 if (BF538 || BF539) |
| |
| config BF_REV_MAX |
| int |
| default 2 if (BF51x || BF52x || (BF54x && !BF54xM)) |
| default 3 if (BF537 || BF536 || BF534 || BF54xM) |
| default 5 if (BF561 || BF538 || BF539) |
| default 6 if (BF533 || BF532 || BF531) |
| |
| choice |
| prompt "Silicon Rev" |
| default BF_REV_0_0 if (BF51x || BF52x) |
| default BF_REV_0_2 if (BF534 || BF536 || BF537 || (BF54x && !BF54xM)) |
| default BF_REV_0_3 if (BF531 || BF532 || BF533 || BF54xM || BF561) |
| |
| config BF_REV_0_0 |
| bool "0.0" |
| depends on (BF51x || BF52x || (BF54x && !BF54xM)) |
| |
| config BF_REV_0_1 |
| bool "0.1" |
| depends on (BF51x || BF52x || (BF54x && !BF54xM)) |
| |
| config BF_REV_0_2 |
| bool "0.2" |
| depends on (BF52x || BF537 || BF536 || BF534 || (BF54x && !BF54xM)) |
| |
| config BF_REV_0_3 |
| bool "0.3" |
| depends on (BF54xM || BF561 || BF537 || BF536 || BF534 || BF533 || BF532 || BF531) |
| |
| config BF_REV_0_4 |
| bool "0.4" |
| depends on (BF561 || BF533 || BF532 || BF531 || BF538 || BF539) |
| |
| config BF_REV_0_5 |
| bool "0.5" |
| depends on (BF561 || BF533 || BF532 || BF531 || BF538 || BF539) |
| |
| config BF_REV_0_6 |
| bool "0.6" |
| depends on (BF533 || BF532 || BF531) |
| |
| config BF_REV_ANY |
| bool "any" |
| |
| config BF_REV_NONE |
| bool "none" |
| |
| endchoice |
| |
| config BF51x |
| bool |
| depends on (BF512 || BF514 || BF516 || BF518) |
| default y |
| |
| config BF52x |
| bool |
| depends on (BF522 || BF523 || BF524 || BF525 || BF526 || BF527) |
| default y |
| |
| config BF53x |
| bool |
| depends on (BF531 || BF532 || BF533 || BF534 || BF536 || BF537) |
| default y |
| |
| config BF54xM |
| bool |
| depends on (BF542M || BF544M || BF547M || BF548M || BF549M) |
| default y |
| |
| config BF54x |
| bool |
| depends on (BF542 || BF544 || BF547 || BF548 || BF549 || BF54xM) |
| default y |
| |
| 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_E \ |
| || BFIN537_BLUETECHNIX_CM_U || H8606_HVSISTEMAS \ |
| || BFIN527_BLUETECHNIX_CM) |
| default y |
| |
| config MEM_MT48LC32M8A2_75 |
| bool |
| depends on (BFIN537_STAMP || PNAV10 || BFIN538_EZKIT) |
| default y |
| |
| config MEM_MT48LC8M32B2B5_7 |
| bool |
| depends on (BFIN561_BLUETECHNIX_CM) |
| default y |
| |
| config MEM_MT48LC32M16A2TG_75 |
| bool |
| depends on (BFIN527_EZKIT || BFIN532_IP0X || BLACKSTAMP) |
| default y |
| |
| config MEM_MT48LC32M8A2_75 |
| bool |
| depends on (BFIN518F_EZBRD) |
| default y |
| |
| config MEM_MT48H32M16LFCJ_75 |
| bool |
| depends on (BFIN526_EZBRD) |
| default y |
| |
| source "arch/blackfin/mach-bf518/Kconfig" |
| 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-bf538/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). |
| |
| 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. |
| |
| config ROM_BASE |
| hex "Kernel ROM Base" |
| depends on ROMKERNEL |
| default "0x20040000" |
| range 0x20000000 0x20400000 if !(BF54x || BF561) |
| range 0x20000000 0x30000000 if (BF54x || BF561) |
| help |
| |
| comment "Clock/PLL Setup" |
| |
| config CLKIN_HZ |
| int "Frequency of the crystal on the board in Hz" |
| default "10000000" if BFIN532_IP0X |
| default "11059200" if BFIN533_STAMP |
| default "24576000" if PNAV10 |
| default "25000000" # most people use this |
| default "27000000" if BFIN533_EZKIT |
| default "30000000" if BFIN561_EZKIT |
| help |
| The frequency of CLKIN crystal oscillator on the board in Hz. |
| Warning: This value should match the crystal on the board. Otherwise, |
| peripherals won't work properly. |
| |
| 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 || BFIN548_EZKIT || BFIN548_BLUETECHNIX_CM || BFIN538_EZKIT) |
| default "22" if BFIN533_BLUETECHNIX_CM |
| default "20" if (BFIN537_BLUETECHNIX_CM_E || BFIN537_BLUETECHNIX_CM_U || BFIN527_BLUETECHNIX_CM || BFIN561_BLUETECHNIX_CM) |
| default "20" if BFIN561_EZKIT |
| default "16" if (H8606_HVSISTEMAS || BLACKSTAMP || BFIN526_EZBRD || BFIN518F_EZBRD) |
| 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 |
| 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) |
| |
| choice |
| prompt "DDR SDRAM Chip Type" |
| depends on BFIN_KERNEL_CLOCK |
| depends on BF54x |
| default MEM_MT46V32M16_5B |
| |
| config MEM_MT46V32M16_6T |
| bool "MT46V32M16_6T" |
| |
| config MEM_MT46V32M16_5B |
| bool "MT46V32M16_5B" |
| endchoice |
| |
| choice |
| prompt "DDR/SDRAM Timing" |
| depends on BFIN_KERNEL_CLOCK |
| default BFIN_KERNEL_CLOCK_MEMINIT_CALC |
| help |
| This option allows you to specify Blackfin SDRAM/DDR Timing parameters |
| The calculated SDRAM timing parameters may not be 100% |
| accurate - This option is therefore marked experimental. |
| |
| config BFIN_KERNEL_CLOCK_MEMINIT_CALC |
| bool "Calculate Timings (EXPERIMENTAL)" |
| depends on EXPERIMENTAL |
| |
| config BFIN_KERNEL_CLOCK_MEMINIT_SPEC |
| bool "Provide accurate Timings based on target SCLK" |
| help |
| Please consult the Blackfin Hardware Reference Manuals as well |
| as the memory device datasheet. |
| http://docs.blackfin.uclinux.org/doku.php?id=bfin:sdram |
| endchoice |
| |
| menu "Memory Init Control" |
| depends on BFIN_KERNEL_CLOCK_MEMINIT_SPEC |
| |
| config MEM_DDRCTL0 |
| depends on BF54x |
| hex "DDRCTL0" |
| default 0x0 |
| |
| config MEM_DDRCTL1 |
| depends on BF54x |
| hex "DDRCTL1" |
| default 0x0 |
| |
| config MEM_DDRCTL2 |
| depends on BF54x |
| hex "DDRCTL2" |
| default 0x0 |
| |
| config MEM_EBIU_DDRQUE |
| depends on BF54x |
| hex "DDRQUE" |
| default 0x0 |
| |
| config MEM_SDRRC |
| depends on !BF54x |
| hex "SDRRC" |
| default 0x0 |
| |
| config MEM_SDGCTL |
| depends on !BF54x |
| hex "SDGCTL" |
| default 0x0 |
| endmenu |
| |
| # |
| # Max & Min Speeds for various Chips |
| # |
| config MAX_VCO_HZ |
| int |
| default 400000000 if BF512 |
| default 400000000 if BF514 |
| default 400000000 if BF516 |
| default 400000000 if BF518 |
| default 400000000 if BF522 |
| default 600000000 if BF523 |
| default 400000000 if BF524 |
| default 600000000 if BF525 |
| default 400000000 if BF526 |
| 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 533333333 if BF538 |
| default 533333333 if BF539 |
| default 600000000 if BF542 |
| default 533333333 if BF544 |
| default 600000000 if BF547 |
| default 600000000 if BF548 |
| default 533333333 if BF549 |
| default 600000000 if BF561 |
| |
| config MIN_VCO_HZ |
| int |
| default 50000000 |
| |
| config MAX_SCLK_HZ |
| int |
| default 133333333 |
| |
| config MIN_SCLK_HZ |
| int |
| default 27000000 |
| |
| comment "Kernel Timer/Scheduler" |
| |
| source kernel/Kconfig.hz |
| |
| config GENERIC_TIME |
| def_bool y |
| |
| config GENERIC_CLOCKEVENTS |
| bool "Generic clock events" |
| default y |
| |
| choice |
| prompt "Kernel Tick Source" |
| depends on GENERIC_CLOCKEVENTS |
| default TICKSOURCE_CORETMR |
| |
| config TICKSOURCE_GPTMR0 |
| bool "Gptimer0 (SCLK domain)" |
| select BFIN_GPTIMERS |
| |
| config TICKSOURCE_CORETMR |
| bool "Core timer (CCLK domain)" |
| |
| endchoice |
| |
| config CYCLES_CLOCKSOURCE |
| bool "Use 'CYCLES' as a clocksource" |
| depends on GENERIC_CLOCKEVENTS |
| depends on !BFIN_SCRATCH_REG_CYCLES |
| depends on !SMP |
| help |
| If you say Y here, you will enable support for using the 'cycles' |
| registers as a clock source. Doing so means you will be unable to |
| safely write to the 'cycles' register during runtime. You will |
| still be able to read it (such as for performance monitoring), but |
| writing the registers will most likely crash the kernel. |
| |
| config GPTMR0_CLOCKSOURCE |
| bool "Use GPTimer0 as a clocksource" |
| select BFIN_GPTIMERS |
| depends on GENERIC_CLOCKEVENTS |
| depends on !TICKSOURCE_GPTMR0 |
| |
| config ARCH_USES_GETTIMEOFFSET |
| depends on !GENERIC_CLOCKEVENTS |
| def_bool y |
| |
| source kernel/time/Kconfig |
| |
| comment "Misc" |
| |
| 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 |
| |
| endmenu |
| |
| |
| menu "Blackfin Kernel Optimizations" |
| depends on !SMP |
| |
| 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_aligned 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) |
| |
| config APP_STACK_L1 |
| bool "Support locating application stack in L1 Scratch Memory" |
| default y |
| help |
| If enabled the application stack can be located in L1 |
| scratch memory (less latency). |
| |
| Currently only works with FLAT binaries. |
| |
| config EXCEPTION_L1_SCRATCH |
| bool "Locate exception stack in L1 Scratch Memory" |
| default n |
| depends on !APP_STACK_L1 |
| help |
| Whenever an exception occurs, use the L1 Scratch memory for |
| stack storage. You cannot place the stacks of FLAT binaries |
| in L1 when using this option. |
| |
| If you don't use L1 Scratch, then you should say Y here. |
| |
| comment "Speed Optimizations" |
| config BFIN_INS_LOWOVERHEAD |
| bool "ins[bwl] low overhead, higher interrupt latency" |
| default y |
| help |
| Reads on the Blackfin are speculative. In Blackfin terms, this means |
| they can be interrupted at any time (even after they have been issued |
| on to the external bus), and re-issued after the interrupt occurs. |
| For memory - this is not a big deal, since memory does not change if |
| it sees a read. |
| |
| If a FIFO is sitting on the end of the read, it will see two reads, |
| when the core only sees one since the FIFO receives both the read |
| which is cancelled (and not delivered to the core) and the one which |
| is re-issued (which is delivered to the core). |
| |
| To solve this, interrupts are turned off before reads occur to |
| I/O space. This option controls which the overhead/latency of |
| controlling interrupts during this time |
| "n" turns interrupts off every read |
| (higher overhead, but lower interrupt latency) |
| "y" turns interrupts off every loop |
| (low overhead, but longer interrupt latency) |
| |
| default behavior is to leave this set to on (type "Y"). If you are experiencing |
| interrupt latency issues, it is safe and OK to turn this off. |
| |
| 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 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. |
| |
| choice |
| prompt "Uncached DMA region" |
| default DMA_UNCACHED_1M |
| config DMA_UNCACHED_4M |
| bool "Enable 4M DMA region" |
| 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" |
| default y |
| config BFIN_EXTMEM_ICACHEABLE |
| bool "Enable ICACHE for external memory" |
| depends on BFIN_ICACHE |
| default y |
| config BFIN_L2_ICACHEABLE |
| bool "Enable ICACHE for L2 SRAM" |
| depends on BFIN_ICACHE |
| depends on BF54x || BF561 |
| default n |
| |
| config BFIN_DCACHE |
| bool "Enable DCACHE" |
| default y |
| config BFIN_DCACHE_BANKA |
| bool "Enable only 16k BankA DCACHE - BankB is SRAM" |
| depends on BFIN_DCACHE && !BF531 |
| default n |
| config BFIN_EXTMEM_DCACHEABLE |
| bool "Enable DCACHE for external memory" |
| depends on BFIN_DCACHE |
| default y |
| choice |
| prompt "External memory DCACHE policy" |
| depends on BFIN_EXTMEM_DCACHEABLE |
| default BFIN_EXTMEM_WRITEBACK if !SMP |
| default BFIN_EXTMEM_WRITETHROUGH if SMP |
| config BFIN_EXTMEM_WRITEBACK |
| bool "Write back" |
| depends on !SMP |
| 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_EXTMEM_WRITETHROUGH |
| 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 BFIN_L2_DCACHEABLE |
| bool "Enable DCACHE for L2 SRAM" |
| depends on BFIN_DCACHE |
| depends on (BF54x || BF561) && !SMP |
| default n |
| choice |
| prompt "L2 SRAM DCACHE policy" |
| depends on BFIN_L2_DCACHEABLE |
| default BFIN_L2_WRITEBACK |
| config BFIN_L2_WRITEBACK |
| bool "Write back" |
| |
| config BFIN_L2_WRITETHROUGH |
| bool "Write through" |
| endchoice |
| |
| |
| comment "Memory Protection Unit" |
| config MPU |
| bool "Enable the memory protection unit (EXPERIMENTAL)" |
| default n |
| help |
| Use the processor's MPU to protect applications from accessing |
| memory they do not own. This comes at a performance penalty |
| and is recommended only for debugging. |
| |
| comment "Asynchronous 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" |
| 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 Asynchronous 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 (AMBCTL0.L)" |
| default 0x7BB0 |
| help |
| These are the low 16 bits of the EBIU_AMBCTL0 MMR which are |
| used to control the Asynchronous Memory Bank 0 settings. |
| |
| config BANK_1 |
| hex "Bank 1 (AMBCTL0.H)" |
| default 0x7BB0 |
| default 0x5558 if BF54x |
| help |
| These are the high 16 bits of the EBIU_AMBCTL0 MMR which are |
| used to control the Asynchronous Memory Bank 1 settings. |
| |
| config BANK_2 |
| hex "Bank 2 (AMBCTL1.L)" |
| default 0x7BB0 |
| help |
| These are the low 16 bits of the EBIU_AMBCTL1 MMR which are |
| used to control the Asynchronous Memory Bank 2 settings. |
| |
| config BANK_3 |
| hex "Bank 3 (AMBCTL1.H)" |
| default 0x99B3 |
| help |
| These are the high 16 bits of the EBIU_AMBCTL1 MMR which are |
| used to control the Asynchronous Memory Bank 3 settings. |
| |
| endmenu |
| |
| config EBIU_MBSCTLVAL |
| hex "EBIU Bank Select Control Register" |
| depends on BF54x |
| default 0 |
| |
| config EBIU_MODEVAL |
| hex "Flash Memory Mode Control Register" |
| depends on BF54x |
| default 1 |
| |
| config EBIU_FCTLVAL |
| hex "Flash Memory Bank Control Register" |
| depends on BF54x |
| default 6 |
| endmenu |
| |
| ############################################################################# |
| menu "Bus options (PCI, PCMCIA, EISA, MCA, ISA)" |
| |
| config PCI |
| bool "PCI support" |
| depends on BROKEN |
| 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 build a modular kernel. Get agent software |
| (from <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" |
| depends on !SMP |
| |
| source "kernel/power/Kconfig" |
| |
| config ARCH_SUSPEND_POSSIBLE |
| def_bool y |
| |
| choice |
| prompt "Standby Power Saving Mode" |
| depends on PM |
| default PM_BFIN_SLEEP_DEEPER |
| config PM_BFIN_SLEEP_DEEPER |
| bool "Sleep Deeper" |
| help |
| Sleep "Deeper" Mode (High Power Savings) - This mode reduces dynamic |
| power dissipation by disabling the clock to the processor core (CCLK). |
| Furthermore, Standby sets the internal power supply voltage (VDDINT) |
| to 0.85 V to provide the greatest power savings, while preserving the |
| processor state. |
| The PLL and system clock (SCLK) continue to operate at a very low |
| frequency of about 3.3 MHz. To preserve data integrity in the SDRAM, |
| the SDRAM is put into Self Refresh Mode. Typically an external event |
| such as GPIO interrupt or RTC activity wakes up the processor. |
| Various Peripherals such as UART, SPORT, PPI may not function as |
| normal during Sleep Deeper, due to the reduced SCLK frequency. |
| When in the sleep mode, system DMA access to L1 memory is not supported. |
| |
| If unsure, select "Sleep Deeper". |
| |
| config PM_BFIN_SLEEP |
| bool "Sleep" |
| help |
| Sleep Mode (High Power Savings) - The sleep mode reduces power |
| dissipation by disabling the clock to the processor core (CCLK). |
| The PLL and system clock (SCLK), however, continue to operate in |
| this mode. Typically an external event or RTC activity will wake |
| up the processor. When in the sleep mode, system DMA access to L1 |
| memory is not supported. |
| |
| If unsure, select "Sleep Deeper". |
| endchoice |
| |
| config PM_WAKEUP_BY_GPIO |
| bool "Allow Wakeup from Standby by GPIO" |
| depends on PM && !BF54x |
| |
| config PM_WAKEUP_GPIO_NUMBER |
| int "GPIO number" |
| range 0 47 |
| depends on PM_WAKEUP_BY_GPIO |
| default 2 |
| |
| 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 |
| |
| comment "Possible Suspend Mem / Hibernate Wake-Up Sources" |
| depends on PM |
| |
| config PM_BFIN_WAKE_PH6 |
| bool "Allow Wake-Up from on-chip PHY or PH6 GP" |
| depends on PM && (BF51x || BF52x || BF534 || BF536 || BF537) |
| default n |
| help |
| Enable PHY and PH6 GP Wake-Up (Voltage Regulator Power-Up) |
| |
| config PM_BFIN_WAKE_GP |
| bool "Allow Wake-Up from GPIOs" |
| depends on PM && BF54x |
| default n |
| help |
| Enable General-Purpose Wake-Up (Voltage Regulator Power-Up) |
| (all processors, except ADSP-BF549). This option sets |
| the general-purpose wake-up enable (GPWE) control bit to enable |
| wake-up upon detection of an active low signal on the /GPW (PH7) pin. |
| On ADSP-BF549 this option enables the the same functionality on the |
| /MRXON pin also PH7. |
| |
| endmenu |
| |
| menu "CPU Frequency scaling" |
| depends on !SMP |
| |
| source "drivers/cpufreq/Kconfig" |
| |
| config BFIN_CPU_FREQ |
| bool |
| depends on CPU_FREQ |
| select CPU_FREQ_TABLE |
| default y |
| |
| config CPU_VOLTAGE |
| bool "CPU Voltage scaling" |
| depends on EXPERIMENTAL |
| depends on CPU_FREQ |
| default n |
| help |
| Say Y here if you want CPU voltage scaling according to the CPU frequency. |
| This option violates the PLL BYPASS recommendation in the Blackfin Processor |
| manuals. There is a theoretical risk that during VDDINT transitions |
| the PLL may unlock. |
| |
| endmenu |
| |
| source "net/Kconfig" |
| |
| source "drivers/Kconfig" |
| |
| source "drivers/firmware/Kconfig" |
| |
| source "fs/Kconfig" |
| |
| source "arch/blackfin/Kconfig.debug" |
| |
| source "security/Kconfig" |
| |
| source "crypto/Kconfig" |
| |
| source "lib/Kconfig" |