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-# SPDX-License-Identifier: GPL-2.0
-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_ARCH_KGDB
- select HAVE_ARCH_TRACEHOOK
- select HAVE_DYNAMIC_FTRACE
- select HAVE_FTRACE_MCOUNT_RECORD
- select HAVE_FUNCTION_GRAPH_TRACER
- select HAVE_FUNCTION_TRACER
- select HAVE_IDE
- select HAVE_KERNEL_GZIP if RAMKERNEL
- select HAVE_KERNEL_BZIP2 if RAMKERNEL
- select HAVE_KERNEL_LZMA if RAMKERNEL
- select HAVE_KERNEL_LZO if RAMKERNEL
- select HAVE_OPROFILE
- select HAVE_PERF_EVENTS
- select ARCH_HAVE_CUSTOM_GPIO_H
- select GPIOLIB
- select HAVE_UID16
- select HAVE_UNDERSCORE_SYMBOL_PREFIX
- select VIRT_TO_BUS
- select ARCH_WANT_IPC_PARSE_VERSION
- select GENERIC_ATOMIC64
- select GENERIC_IRQ_PROBE
- select GENERIC_IRQ_SHOW
- select HAVE_NMI_WATCHDOG if NMI_WATCHDOG
- select GENERIC_SMP_IDLE_THREAD
- select ARCH_USES_GETTIMEOFFSET if !GENERIC_CLOCKEVENTS
- select HAVE_MOD_ARCH_SPECIFIC
- select MODULES_USE_ELF_RELA
- select HAVE_DEBUG_STACKOVERFLOW
- select HAVE_NMI
- select ARCH_NO_COHERENT_DMA_MMAP
-
-config GENERIC_CSUM
- def_bool y
-
-config GENERIC_BUG
- def_bool y
- depends on BUG
-
-config ZONE_DMA
- 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_std
- bool "BF542"
- help
- BF542 Processor Support.
-
-config BF542M
- bool "BF542m"
- help
- BF542 Processor Support.
-
-config BF544_std
- bool "BF544"
- help
- BF544 Processor Support.
-
-config BF544M
- bool "BF544m"
- help
- BF544 Processor Support.
-
-config BF547_std
- bool "BF547"
- help
- BF547 Processor Support.
-
-config BF547M
- bool "BF547m"
- help
- BF547 Processor Support.
-
-config BF548_std
- bool "BF548"
- help
- BF548 Processor Support.
-
-config BF548M
- bool "BF548m"
- help
- BF548 Processor Support.
-
-config BF549_std
- bool "BF549"
- help
- BF549 Processor Support.
-
-config BF549M
- bool "BF549m"
- help
- BF549 Processor Support.
-
-config BF561
- bool "BF561"
- help
- BF561 Processor Support.
-
-config BF609
- bool "BF609"
- select CLKDEV_LOOKUP
- help
- BF609 Processor Support.
-
-endchoice
-
-config SMP
- depends on BF561
- select TICKSOURCE_CORETMR
- 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 HOTPLUG_CPU
- bool "Support for hot-pluggable CPUs"
- depends on SMP
- default y
-
-config BF_REV_MIN
- int
- default 0 if (BF51x || BF52x || (BF54x && !BF54xM)) || BF60x
- 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)) || BF60x
- 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 || BF60x)
- 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) || BF60x)
-
-config BF_REV_0_1
- bool "0.1"
- depends on (BF51x || BF52x || (BF54x && !BF54xM) || BF60x)
-
-config BF_REV_0_2
- bool "0.2"
- depends on (BF51x || 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 || BF54x)
-
-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 BF53x
- bool
- depends on (BF531 || BF532 || BF533 || BF534 || BF536 || BF537)
- default y
-
-config GPIO_ADI
- def_bool y
- depends on !PINCTRL
- depends on (BF51x || BF52x || BF53x || BF538 || BF539 || BF561)
-
-config PINCTRL_BLACKFIN_ADI2
- def_bool y
- depends on (BF54x || BF60x)
- select PINCTRL
- select PINCTRL_ADI2
-
-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 (BFIN518F_EZBRD || 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 || BFIN527_EZKIT_V2 || BFIN532_IP0X || BLACKSTAMP || BFIN527_AD7160EVAL)
- default y
-
-config MEM_MT48H32M16LFCJ_75
- bool
- depends on (BFIN526_EZBRD)
- default y
-
-config MEM_MT47H64M16
- bool
- depends on (BFIN609_EZKIT)
- 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"
-source "arch/blackfin/mach-bf609/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 PHY_RAM_BASE_ADDRESS
- hex "Physical RAM Base"
- default 0x0
- help
- set BF609 FPGA physical SRAM base address
-
-config ROM_BASE
- hex "Kernel ROM Base"
- depends on ROMKERNEL
- default "0x20040040"
- range 0x20000000 0x20400000 if !(BF54x || BF561 || BF60x)
- range 0x20000000 0x30000000 if (BF54x || BF561)
- range 0xB0000000 0xC0000000 if (BF60x)
- help
- Make sure your ROM base does not include any file-header
- information that is prepended to the kernel.
-
- For example, the bootable U-Boot format (created with
- mkimage) has a 64 byte header (0x40). So while the image
- you write to flash might start at say 0x20080000, you have
- to add 0x40 to get the kernel's ROM base as it will come
- after the header.
-
-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
- default "24000000" if BFIN527_AD7160EVAL
- 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 && (!BF60x)
- 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 || BFIN527_EZKIT_V2 || 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 || BF609)
- default "16" if (H8606_HVSISTEMAS || BLACKSTAMP || BFIN526_EZBRD || BFIN518F_EZBRD)
- default "25" if BFIN527_AD7160EVAL
- 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 4
- help
- This sets the frequency of the system clock (including SDRAM or DDR) on
- !BF60x else it set the clock for system buses and provides the
- source from which SCLK0 and SCLK1 are derived.
- This can be between 1 and 15
- System Clock = (PLL frequency) / (this setting)
-
-config SCLK0_DIV
- int "System Clock0 Divider"
- depends on BFIN_KERNEL_CLOCK && BF60x
- range 1 15
- default 1
- help
- This sets the frequency of the system clock0 for PVP and all other
- peripherals not clocked by SCLK1.
- This can be between 1 and 15
- System Clock0 = (System Clock) / (this setting)
-
-config SCLK1_DIV
- int "System Clock1 Divider"
- depends on BFIN_KERNEL_CLOCK && BF60x
- range 1 15
- default 1
- help
- This sets the frequency of the system clock1 (including SPORT, SPI and ACM).
- This can be between 1 and 15
- System Clock1 = (System Clock) / (this setting)
-
-config DCLK_DIV
- int "DDR Clock Divider"
- depends on BFIN_KERNEL_CLOCK && BF60x
- range 1 15
- default 2
- help
- This sets the frequency of the DDR memory.
- This can be between 1 and 15
- DDR 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 && !BF60x
- 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"
-
-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
- default 800000000 if BF609
-
-config MIN_VCO_HZ
- int
- default 50000000
-
-config MAX_SCLK_HZ
- int
- default 200000000 if BF609
- default 133333333
-
-config MIN_SCLK_HZ
- int
- default 27000000
-
-comment "Kernel Timer/Scheduler"
-
-source kernel/Kconfig.hz
-
-config SET_GENERIC_CLOCKEVENTS
- bool "Generic clock events"
- default y
- select GENERIC_CLOCKEVENTS
-
-menu "Clock event device"
- depends on GENERIC_CLOCKEVENTS
-config TICKSOURCE_GPTMR0
- bool "GPTimer0"
- depends on !SMP
- select BFIN_GPTIMERS
-
-config TICKSOURCE_CORETMR
- bool "Core timer"
- default y
-endmenu
-
-menu "Clock source"
- depends on GENERIC_CLOCKEVENTS
-config CYCLES_CLOCKSOURCE
- bool "CYCLES"
- default y
- 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 "GPTimer0"
- select BFIN_GPTIMERS
- depends on !TICKSOURCE_GPTMR0
-endmenu
-
-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"
-
-comment "Memory Optimizations"
-
-config I_ENTRY_L1
- bool "Locate interrupt entry code in L1 Memory"
- default y
- depends on !SMP
- 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
- depends on !SMP
- 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
- depends on !SMP
- 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
- depends on !SMP
- 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
- depends on !SMP
- 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
- depends on !SMP
- 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
- depends on !SMP
- 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
- depends on !SMP
- 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
- depends on !SMP
- 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
- depends on !SMP
- help
- If enabled, the memcpy function is linked
- into L1 instruction memory. (less latency)
-
-config STRCMP_L1
- bool "locate strcmp function in L1 Memory"
- default y
- depends on !SMP
- help
- If enabled, the strcmp function is linked
- into L1 instruction memory (less latency).
-
-config STRNCMP_L1
- bool "locate strncmp function in L1 Memory"
- default y
- depends on !SMP
- help
- If enabled, the strncmp function is linked
- into L1 instruction memory (less latency).
-
-config STRCPY_L1
- bool "locate strcpy function in L1 Memory"
- default y
- depends on !SMP
- help
- If enabled, the strcpy function is linked
- into L1 instruction memory (less latency).
-
-config STRNCPY_L1
- bool "locate strncpy function in L1 Memory"
- default y
- depends on !SMP
- help
- If enabled, the strncpy 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
- depends on !SMP
- help
- If enabled, sys_bfin_spinlock 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 !SMP && !BF531 && !CRC32
- 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 !SMP && !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 !SMP && !BF531
- help
- If enabled, the CPLB Switch Tables are linked
- into L1 data memory. (less latency)
-
-config ICACHE_FLUSH_L1
- bool "Locate icache flush funcs in L1 Inst Memory"
- default y
- help
- If enabled, the Blackfin icache flushing functions are linked
- into L1 instruction memory.
-
- Note that this might be required to address anomalies, but
- these functions are pretty small, so it shouldn't be too bad.
- If you are using a processor affected by an anomaly, the build
- system will double check for you and prevent it.
-
-config DCACHE_FLUSH_L1
- bool "Locate dcache flush funcs in L1 Inst Memory"
- default y
- depends on !SMP
- help
- If enabled, the Blackfin dcache flushing functions are linked
- into L1 instruction memory.
-
-config APP_STACK_L1
- bool "Support locating application stack in L1 Scratch Memory"
- default y
- depends on !SMP
- 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 !SMP && !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
- depends on !SMP
- 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
-
-# Common code uses "ROMKERNEL" or "XIP_KERNEL", so define both
-config XIP_KERNEL
- bool
- default y
- depends on ROMKERNEL
-
-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_32M
- bool "Enable 32M DMA region"
-config DMA_UNCACHED_16M
- bool "Enable 16M DMA region"
-config DMA_UNCACHED_8M
- bool "Enable 8M DMA region"
-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_512K
- bool "Enable 512K DMA region"
-config DMA_UNCACHED_256K
- bool "Enable 256K DMA region"
-config DMA_UNCACHED_128K
- bool "Enable 128K 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 || BF60x) && !SMP
- 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 || BF60x) && !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"
- 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"
- depends on !BF60x
-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"
- depends on !BF60x
-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"
-
-source "drivers/pcmcia/Kconfig"
-
-endmenu
-
-menu "Executable file formats"
-
-source "fs/Kconfig.binfmt"
-
-endmenu
-
-menu "Power management options"
-
-source "kernel/power/Kconfig"
-
-config ARCH_SUSPEND_POSSIBLE
- def_bool y
-
-choice
- prompt "Standby Power Saving Mode"
- depends on PM && !BF60x
- 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
-
-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 same functionality on the
- /MRXON pin also PH7.
-
-config PM_BFIN_WAKE_PA15
- bool "Allow Wake-Up from PA15"
- depends on PM && BF60x
- default n
- help
- Enable PA15 Wake-Up
-
-config PM_BFIN_WAKE_PA15_POL
- int "Wake-up priority"
- depends on PM_BFIN_WAKE_PA15
- default 0
- help
- Wake-Up priority 0(low) 1(high)
-
-config PM_BFIN_WAKE_PB15
- bool "Allow Wake-Up from PB15"
- depends on PM && BF60x
- default n
- help
- Enable PB15 Wake-Up
-
-config PM_BFIN_WAKE_PB15_POL
- int "Wake-up priority"
- depends on PM_BFIN_WAKE_PB15
- default 0
- help
- Wake-Up priority 0(low) 1(high)
-
-config PM_BFIN_WAKE_PC15
- bool "Allow Wake-Up from PC15"
- depends on PM && BF60x
- default n
- help
- Enable PC15 Wake-Up
-
-config PM_BFIN_WAKE_PC15_POL
- int "Wake-up priority"
- depends on PM_BFIN_WAKE_PC15
- default 0
- help
- Wake-Up priority 0(low) 1(high)
-
-config PM_BFIN_WAKE_PD06
- bool "Allow Wake-Up from PD06(ETH0_PHYINT)"
- depends on PM && BF60x
- default n
- help
- Enable PD06(ETH0_PHYINT) Wake-up
-
-config PM_BFIN_WAKE_PD06_POL
- int "Wake-up priority"
- depends on PM_BFIN_WAKE_PD06
- default 0
- help
- Wake-Up priority 0(low) 1(high)
-
-config PM_BFIN_WAKE_PE12
- bool "Allow Wake-Up from PE12(ETH1_PHYINT, PUSH BUTTON)"
- depends on PM && BF60x
- default n
- help
- Enable PE12(ETH1_PHYINT, PUSH BUTTON) Wake-up
-
-config PM_BFIN_WAKE_PE12_POL
- int "Wake-up priority"
- depends on PM_BFIN_WAKE_PE12
- default 0
- help
- Wake-Up priority 0(low) 1(high)
-
-config PM_BFIN_WAKE_PG04
- bool "Allow Wake-Up from PG04(CAN0_RX)"
- depends on PM && BF60x
- default n
- help
- Enable PG04(CAN0_RX) Wake-up
-
-config PM_BFIN_WAKE_PG04_POL
- int "Wake-up priority"
- depends on PM_BFIN_WAKE_PG04
- default 0
- help
- Wake-Up priority 0(low) 1(high)
-
-config PM_BFIN_WAKE_PG13
- bool "Allow Wake-Up from PG13"
- depends on PM && BF60x
- default n
- help
- Enable PG13 Wake-Up
-
-config PM_BFIN_WAKE_PG13_POL
- int "Wake-up priority"
- depends on PM_BFIN_WAKE_PG13
- default 0
- help
- Wake-Up priority 0(low) 1(high)
-
-config PM_BFIN_WAKE_USB
- bool "Allow Wake-Up from (USB)"
- depends on PM && BF60x
- default n
- help
- Enable (USB) Wake-up
-
-config PM_BFIN_WAKE_USB_POL
- int "Wake-up priority"
- depends on PM_BFIN_WAKE_USB
- default 0
- help
- Wake-Up priority 0(low) 1(high)
-
-endmenu
-
-menu "CPU Frequency scaling"
-
-source "drivers/cpufreq/Kconfig"
-
-config BFIN_CPU_FREQ
- bool
- depends on CPU_FREQ
- default y
-
-config CPU_VOLTAGE
- bool "CPU Voltage scaling"
- 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"