11 config RWSEM_GENERIC_SPINLOCK
14 config RWSEM_XCHGADD_ALGORITHM
20 select HAVE_ARCH_TRACEHOOK
21 select HAVE_DYNAMIC_FTRACE
22 select HAVE_FTRACE_MCOUNT_RECORD
23 select HAVE_FUNCTION_GRAPH_TRACER
24 select HAVE_FUNCTION_TRACER
25 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
28 select HAVE_KERNEL_GZIP if RAMKERNEL
29 select HAVE_KERNEL_BZIP2 if RAMKERNEL
30 select HAVE_KERNEL_LZMA if RAMKERNEL
31 select HAVE_KERNEL_LZO if RAMKERNEL
33 select HAVE_PERF_EVENTS
34 select ARCH_HAVE_CUSTOM_GPIO_H
35 select ARCH_WANT_OPTIONAL_GPIOLIB
36 select HAVE_GENERIC_HARDIRQS
37 select GENERIC_ATOMIC64
38 select GENERIC_IRQ_PROBE
39 select IRQ_PER_CPU if SMP
40 select HAVE_NMI_WATCHDOG if NMI_WATCHDOG
41 select GENERIC_SMP_IDLE_THREAD
42 select ARCH_USES_GETTIMEOFFSET if !GENERIC_CLOCKEVENTS
57 config FORCE_MAX_ZONEORDER
61 config GENERIC_CALIBRATE_DELAY
64 config LOCKDEP_SUPPORT
67 config STACKTRACE_SUPPORT
70 config TRACE_IRQFLAGS_SUPPORT
75 source "kernel/Kconfig.preempt"
77 source "kernel/Kconfig.freezer"
79 menu "Blackfin Processor Options"
81 comment "Processor and Board Settings"
90 BF512 Processor Support.
95 BF514 Processor Support.
100 BF516 Processor Support.
105 BF518 Processor Support.
110 BF522 Processor Support.
115 BF523 Processor Support.
120 BF524 Processor Support.
125 BF525 Processor Support.
130 BF526 Processor Support.
135 BF527 Processor Support.
140 BF531 Processor Support.
145 BF532 Processor Support.
150 BF533 Processor Support.
155 BF534 Processor Support.
160 BF536 Processor Support.
165 BF537 Processor Support.
170 BF538 Processor Support.
175 BF539 Processor Support.
180 BF542 Processor Support.
185 BF542 Processor Support.
190 BF544 Processor Support.
195 BF544 Processor Support.
200 BF547 Processor Support.
205 BF547 Processor Support.
210 BF548 Processor Support.
215 BF548 Processor Support.
220 BF549 Processor Support.
225 BF549 Processor Support.
230 BF561 Processor Support.
236 BF609 Processor Support.
242 select TICKSOURCE_CORETMR
243 bool "Symmetric multi-processing support"
245 This enables support for systems with more than one CPU,
246 like the dual core BF561. If you have a system with only one
247 CPU, say N. If you have a system with more than one CPU, say Y.
249 If you don't know what to do here, say N.
257 bool "Support for hot-pluggable CPUs"
258 depends on SMP && HOTPLUG
263 default 0 if (BF51x || BF52x || (BF54x && !BF54xM)) || BF60x
264 default 2 if (BF537 || BF536 || BF534)
265 default 3 if (BF561 || BF533 || BF532 || BF531 || BF54xM)
266 default 4 if (BF538 || BF539)
270 default 2 if (BF51x || BF52x || (BF54x && !BF54xM)) || BF60x
271 default 3 if (BF537 || BF536 || BF534 || BF54xM)
272 default 5 if (BF561 || BF538 || BF539)
273 default 6 if (BF533 || BF532 || BF531)
277 default BF_REV_0_0 if (BF51x || BF52x || BF60x)
278 default BF_REV_0_2 if (BF534 || BF536 || BF537 || (BF54x && !BF54xM))
279 default BF_REV_0_3 if (BF531 || BF532 || BF533 || BF54xM || BF561)
283 depends on (BF51x || BF52x || (BF54x && !BF54xM) || BF60x)
287 depends on (BF51x || BF52x || (BF54x && !BF54xM))
291 depends on (BF51x || BF52x || BF537 || BF536 || BF534 || (BF54x && !BF54xM))
295 depends on (BF54xM || BF561 || BF537 || BF536 || BF534 || BF533 || BF532 || BF531)
299 depends on (BF561 || BF533 || BF532 || BF531 || BF538 || BF539)
303 depends on (BF561 || BF533 || BF532 || BF531 || BF538 || BF539)
307 depends on (BF533 || BF532 || BF531)
319 depends on (BF531 || BF532 || BF533 || BF534 || BF536 || BF537)
322 config MEM_MT48LC64M4A2FB_7E
324 depends on (BFIN533_STAMP)
327 config MEM_MT48LC16M16A2TG_75
329 depends on (BFIN533_EZKIT || BFIN561_EZKIT \
330 || BFIN533_BLUETECHNIX_CM || BFIN537_BLUETECHNIX_CM_E \
331 || BFIN537_BLUETECHNIX_CM_U || H8606_HVSISTEMAS \
332 || BFIN527_BLUETECHNIX_CM)
335 config MEM_MT48LC32M8A2_75
337 depends on (BFIN518F_EZBRD || BFIN537_STAMP || PNAV10 || BFIN538_EZKIT)
340 config MEM_MT48LC8M32B2B5_7
342 depends on (BFIN561_BLUETECHNIX_CM)
345 config MEM_MT48LC32M16A2TG_75
347 depends on (BFIN527_EZKIT || BFIN527_EZKIT_V2 || BFIN532_IP0X || BLACKSTAMP || BFIN527_AD7160EVAL)
350 config MEM_MT48H32M16LFCJ_75
352 depends on (BFIN526_EZBRD)
355 config MEM_MT47H64M16
357 depends on (BFIN609_EZKIT)
360 source "arch/blackfin/mach-bf518/Kconfig"
361 source "arch/blackfin/mach-bf527/Kconfig"
362 source "arch/blackfin/mach-bf533/Kconfig"
363 source "arch/blackfin/mach-bf561/Kconfig"
364 source "arch/blackfin/mach-bf537/Kconfig"
365 source "arch/blackfin/mach-bf538/Kconfig"
366 source "arch/blackfin/mach-bf548/Kconfig"
367 source "arch/blackfin/mach-bf609/Kconfig"
369 menu "Board customizations"
372 bool "Default bootloader kernel arguments"
375 string "Initial kernel command string"
376 depends on CMDLINE_BOOL
377 default "console=ttyBF0,57600"
379 If you don't have a boot loader capable of passing a command line string
380 to the kernel, you may specify one here. As a minimum, you should specify
381 the memory size and the root device (e.g., mem=8M, root=/dev/nfs).
384 hex "Kernel load address for booting"
386 range 0x1000 0x20000000
388 This option allows you to set the load address of the kernel.
389 This can be useful if you are on a board which has a small amount
390 of memory or you wish to reserve some memory at the beginning of
393 Note that you need to keep this value above 4k (0x1000) as this
394 memory region is used to capture NULL pointer references as well
395 as some core kernel functions.
397 config PHY_RAM_BASE_ADDRESS
398 hex "Physical RAM Base"
401 set BF609 FPGA physical SRAM base address
404 hex "Kernel ROM Base"
407 range 0x20000000 0x20400000 if !(BF54x || BF561 || BF60x)
408 range 0x20000000 0x30000000 if (BF54x || BF561)
409 range 0xB0000000 0xC0000000 if (BF60x)
411 Make sure your ROM base does not include any file-header
412 information that is prepended to the kernel.
414 For example, the bootable U-Boot format (created with
415 mkimage) has a 64 byte header (0x40). So while the image
416 you write to flash might start at say 0x20080000, you have
417 to add 0x40 to get the kernel's ROM base as it will come
420 comment "Clock/PLL Setup"
423 int "Frequency of the crystal on the board in Hz"
424 default "10000000" if BFIN532_IP0X
425 default "11059200" if BFIN533_STAMP
426 default "24576000" if PNAV10
427 default "25000000" # most people use this
428 default "27000000" if BFIN533_EZKIT
429 default "30000000" if BFIN561_EZKIT
430 default "24000000" if BFIN527_AD7160EVAL
432 The frequency of CLKIN crystal oscillator on the board in Hz.
433 Warning: This value should match the crystal on the board. Otherwise,
434 peripherals won't work properly.
436 config BFIN_KERNEL_CLOCK
437 bool "Re-program Clocks while Kernel boots?"
440 This option decides if kernel clocks are re-programed from the
441 bootloader settings. If the clocks are not set, the SDRAM settings
442 are also not changed, and the Bootloader does 100% of the hardware
447 depends on BFIN_KERNEL_CLOCK && (!BF60x)
452 depends on BFIN_KERNEL_CLOCK && (! PLL_BYPASS)
455 If this is set the clock will be divided by 2, before it goes to the PLL.
459 depends on BFIN_KERNEL_CLOCK && (! PLL_BYPASS)
461 default "22" if BFIN533_EZKIT
462 default "45" if BFIN533_STAMP
463 default "20" if (BFIN537_STAMP || BFIN527_EZKIT || BFIN527_EZKIT_V2 || BFIN548_EZKIT || BFIN548_BLUETECHNIX_CM || BFIN538_EZKIT)
464 default "22" if BFIN533_BLUETECHNIX_CM
465 default "20" if (BFIN537_BLUETECHNIX_CM_E || BFIN537_BLUETECHNIX_CM_U || BFIN527_BLUETECHNIX_CM || BFIN561_BLUETECHNIX_CM)
466 default "20" if (BFIN561_EZKIT || BF609)
467 default "16" if (H8606_HVSISTEMAS || BLACKSTAMP || BFIN526_EZBRD || BFIN518F_EZBRD)
468 default "25" if BFIN527_AD7160EVAL
470 This controls the frequency of the on-chip PLL. This can be between 1 and 64.
471 PLL Frequency = (Crystal Frequency) * (this setting)
474 prompt "Core Clock Divider"
475 depends on BFIN_KERNEL_CLOCK
478 This sets the frequency of the core. It can be 1, 2, 4 or 8
479 Core Frequency = (PLL frequency) / (this setting)
495 int "System Clock Divider"
496 depends on BFIN_KERNEL_CLOCK
500 This sets the frequency of the system clock (including SDRAM or DDR) on
501 !BF60x else it set the clock for system buses and provides the
502 source from which SCLK0 and SCLK1 are derived.
503 This can be between 1 and 15
504 System Clock = (PLL frequency) / (this setting)
507 int "System Clock0 Divider"
508 depends on BFIN_KERNEL_CLOCK && BF60x
512 This sets the frequency of the system clock0 for PVP and all other
513 peripherals not clocked by SCLK1.
514 This can be between 1 and 15
515 System Clock0 = (System Clock) / (this setting)
518 int "System Clock1 Divider"
519 depends on BFIN_KERNEL_CLOCK && BF60x
523 This sets the frequency of the system clock1 (including SPORT, SPI and ACM).
524 This can be between 1 and 15
525 System Clock1 = (System Clock) / (this setting)
528 int "DDR Clock Divider"
529 depends on BFIN_KERNEL_CLOCK && BF60x
533 This sets the frequency of the DDR memory.
534 This can be between 1 and 15
535 DDR Clock = (PLL frequency) / (this setting)
538 prompt "DDR SDRAM Chip Type"
539 depends on BFIN_KERNEL_CLOCK
541 default MEM_MT46V32M16_5B
543 config MEM_MT46V32M16_6T
546 config MEM_MT46V32M16_5B
551 prompt "DDR/SDRAM Timing"
552 depends on BFIN_KERNEL_CLOCK && !BF60x
553 default BFIN_KERNEL_CLOCK_MEMINIT_CALC
555 This option allows you to specify Blackfin SDRAM/DDR Timing parameters
556 The calculated SDRAM timing parameters may not be 100%
557 accurate - This option is therefore marked experimental.
559 config BFIN_KERNEL_CLOCK_MEMINIT_CALC
560 bool "Calculate Timings (EXPERIMENTAL)"
561 depends on EXPERIMENTAL
563 config BFIN_KERNEL_CLOCK_MEMINIT_SPEC
564 bool "Provide accurate Timings based on target SCLK"
566 Please consult the Blackfin Hardware Reference Manuals as well
567 as the memory device datasheet.
568 http://docs.blackfin.uclinux.org/doku.php?id=bfin:sdram
571 menu "Memory Init Control"
572 depends on BFIN_KERNEL_CLOCK_MEMINIT_SPEC
589 config MEM_EBIU_DDRQUE
606 # Max & Min Speeds for various Chips
610 default 400000000 if BF512
611 default 400000000 if BF514
612 default 400000000 if BF516
613 default 400000000 if BF518
614 default 400000000 if BF522
615 default 600000000 if BF523
616 default 400000000 if BF524
617 default 600000000 if BF525
618 default 400000000 if BF526
619 default 600000000 if BF527
620 default 400000000 if BF531
621 default 400000000 if BF532
622 default 750000000 if BF533
623 default 500000000 if BF534
624 default 400000000 if BF536
625 default 600000000 if BF537
626 default 533333333 if BF538
627 default 533333333 if BF539
628 default 600000000 if BF542
629 default 533333333 if BF544
630 default 600000000 if BF547
631 default 600000000 if BF548
632 default 533333333 if BF549
633 default 600000000 if BF561
634 default 800000000 if BF609
642 default 200000000 if BF609
649 comment "Kernel Timer/Scheduler"
651 source kernel/Kconfig.hz
653 config SET_GENERIC_CLOCKEVENTS
654 bool "Generic clock events"
656 select GENERIC_CLOCKEVENTS
658 menu "Clock event device"
659 depends on GENERIC_CLOCKEVENTS
660 config TICKSOURCE_GPTMR0
665 config TICKSOURCE_CORETMR
671 depends on GENERIC_CLOCKEVENTS
672 config CYCLES_CLOCKSOURCE
675 depends on !BFIN_SCRATCH_REG_CYCLES
678 If you say Y here, you will enable support for using the 'cycles'
679 registers as a clock source. Doing so means you will be unable to
680 safely write to the 'cycles' register during runtime. You will
681 still be able to read it (such as for performance monitoring), but
682 writing the registers will most likely crash the kernel.
684 config GPTMR0_CLOCKSOURCE
687 depends on !TICKSOURCE_GPTMR0
693 prompt "Blackfin Exception Scratch Register"
694 default BFIN_SCRATCH_REG_RETN
696 Select the resource to reserve for the Exception handler:
697 - RETN: Non-Maskable Interrupt (NMI)
698 - RETE: Exception Return (JTAG/ICE)
699 - CYCLES: Performance counter
701 If you are unsure, please select "RETN".
703 config BFIN_SCRATCH_REG_RETN
706 Use the RETN register in the Blackfin exception handler
707 as a stack scratch register. This means you cannot
708 safely use NMI on the Blackfin while running Linux, but
709 you can debug the system with a JTAG ICE and use the
710 CYCLES performance registers.
712 If you are unsure, please select "RETN".
714 config BFIN_SCRATCH_REG_RETE
717 Use the RETE register in the Blackfin exception handler
718 as a stack scratch register. This means you cannot
719 safely use a JTAG ICE while debugging a Blackfin board,
720 but you can safely use the CYCLES performance registers
723 If you are unsure, please select "RETN".
725 config BFIN_SCRATCH_REG_CYCLES
728 Use the CYCLES register in the Blackfin exception handler
729 as a stack scratch register. This means you cannot
730 safely use the CYCLES performance registers on a Blackfin
731 board at anytime, but you can debug the system with a JTAG
734 If you are unsure, please select "RETN".
741 menu "Blackfin Kernel Optimizations"
743 comment "Memory Optimizations"
746 bool "Locate interrupt entry code in L1 Memory"
750 If enabled, interrupt entry code (STORE/RESTORE CONTEXT) is linked
751 into L1 instruction memory. (less latency)
753 config EXCPT_IRQ_SYSC_L1
754 bool "Locate entire ASM lowlevel exception / interrupt - Syscall and CPLB handler code in L1 Memory"
758 If enabled, the entire ASM lowlevel exception and interrupt entry code
759 (STORE/RESTORE CONTEXT) is linked into L1 instruction memory.
763 bool "Locate frequently called do_irq dispatcher function in L1 Memory"
767 If enabled, the frequently called do_irq dispatcher function is linked
768 into L1 instruction memory. (less latency)
770 config CORE_TIMER_IRQ_L1
771 bool "Locate frequently called timer_interrupt() function in L1 Memory"
775 If enabled, the frequently called timer_interrupt() function is linked
776 into L1 instruction memory. (less latency)
779 bool "Locate frequently idle function in L1 Memory"
783 If enabled, the frequently called idle function is linked
784 into L1 instruction memory. (less latency)
787 bool "Locate kernel schedule function in L1 Memory"
791 If enabled, the frequently called kernel schedule is linked
792 into L1 instruction memory. (less latency)
794 config ARITHMETIC_OPS_L1
795 bool "Locate kernel owned arithmetic functions in L1 Memory"
799 If enabled, arithmetic functions are linked
800 into L1 instruction memory. (less latency)
803 bool "Locate access_ok function in L1 Memory"
807 If enabled, the access_ok function is linked
808 into L1 instruction memory. (less latency)
811 bool "Locate memset function in L1 Memory"
815 If enabled, the memset function is linked
816 into L1 instruction memory. (less latency)
819 bool "Locate memcpy function in L1 Memory"
823 If enabled, the memcpy function is linked
824 into L1 instruction memory. (less latency)
827 bool "locate strcmp function in L1 Memory"
831 If enabled, the strcmp function is linked
832 into L1 instruction memory (less latency).
835 bool "locate strncmp function in L1 Memory"
839 If enabled, the strncmp function is linked
840 into L1 instruction memory (less latency).
843 bool "locate strcpy function in L1 Memory"
847 If enabled, the strcpy function is linked
848 into L1 instruction memory (less latency).
851 bool "locate strncpy function in L1 Memory"
855 If enabled, the strncpy function is linked
856 into L1 instruction memory (less latency).
858 config SYS_BFIN_SPINLOCK_L1
859 bool "Locate sys_bfin_spinlock function in L1 Memory"
863 If enabled, sys_bfin_spinlock function is linked
864 into L1 instruction memory. (less latency)
866 config IP_CHECKSUM_L1
867 bool "Locate IP Checksum function in L1 Memory"
871 If enabled, the IP Checksum function is linked
872 into L1 instruction memory. (less latency)
874 config CACHELINE_ALIGNED_L1
875 bool "Locate cacheline_aligned data to L1 Data Memory"
878 depends on !SMP && !BF531 && !CRC32
880 If enabled, cacheline_aligned data is linked
881 into L1 data memory. (less latency)
883 config SYSCALL_TAB_L1
884 bool "Locate Syscall Table L1 Data Memory"
886 depends on !SMP && !BF531
888 If enabled, the Syscall LUT is linked
889 into L1 data memory. (less latency)
891 config CPLB_SWITCH_TAB_L1
892 bool "Locate CPLB Switch Tables L1 Data Memory"
894 depends on !SMP && !BF531
896 If enabled, the CPLB Switch Tables are linked
897 into L1 data memory. (less latency)
899 config ICACHE_FLUSH_L1
900 bool "Locate icache flush funcs in L1 Inst Memory"
903 If enabled, the Blackfin icache flushing functions are linked
904 into L1 instruction memory.
906 Note that this might be required to address anomalies, but
907 these functions are pretty small, so it shouldn't be too bad.
908 If you are using a processor affected by an anomaly, the build
909 system will double check for you and prevent it.
911 config DCACHE_FLUSH_L1
912 bool "Locate dcache flush funcs in L1 Inst Memory"
916 If enabled, the Blackfin dcache flushing functions are linked
917 into L1 instruction memory.
920 bool "Support locating application stack in L1 Scratch Memory"
924 If enabled the application stack can be located in L1
925 scratch memory (less latency).
927 Currently only works with FLAT binaries.
929 config EXCEPTION_L1_SCRATCH
930 bool "Locate exception stack in L1 Scratch Memory"
932 depends on !SMP && !APP_STACK_L1
934 Whenever an exception occurs, use the L1 Scratch memory for
935 stack storage. You cannot place the stacks of FLAT binaries
936 in L1 when using this option.
938 If you don't use L1 Scratch, then you should say Y here.
940 comment "Speed Optimizations"
941 config BFIN_INS_LOWOVERHEAD
942 bool "ins[bwl] low overhead, higher interrupt latency"
946 Reads on the Blackfin are speculative. In Blackfin terms, this means
947 they can be interrupted at any time (even after they have been issued
948 on to the external bus), and re-issued after the interrupt occurs.
949 For memory - this is not a big deal, since memory does not change if
952 If a FIFO is sitting on the end of the read, it will see two reads,
953 when the core only sees one since the FIFO receives both the read
954 which is cancelled (and not delivered to the core) and the one which
955 is re-issued (which is delivered to the core).
957 To solve this, interrupts are turned off before reads occur to
958 I/O space. This option controls which the overhead/latency of
959 controlling interrupts during this time
960 "n" turns interrupts off every read
961 (higher overhead, but lower interrupt latency)
962 "y" turns interrupts off every loop
963 (low overhead, but longer interrupt latency)
965 default behavior is to leave this set to on (type "Y"). If you are experiencing
966 interrupt latency issues, it is safe and OK to turn this off.
971 prompt "Kernel executes from"
973 Choose the memory type that the kernel will be running in.
978 The kernel will be resident in RAM when running.
983 The kernel will be resident in FLASH/ROM when running.
987 # Common code uses "ROMKERNEL" or "XIP_KERNEL", so define both
996 tristate "Enable Blackfin General Purpose Timers API"
999 Enable support for the General Purpose Timers API. If you
1002 To compile this driver as a module, choose M here: the module
1003 will be called gptimers.
1006 tristate "Enable PWM API support"
1007 depends on BFIN_GPTIMERS
1009 Enable support for the Pulse Width Modulation framework (as
1010 found in linux/pwm.h).
1012 To compile this driver as a module, choose M here: the module
1016 prompt "Uncached DMA region"
1017 default DMA_UNCACHED_1M
1018 config DMA_UNCACHED_32M
1019 bool "Enable 32M DMA region"
1020 config DMA_UNCACHED_16M
1021 bool "Enable 16M DMA region"
1022 config DMA_UNCACHED_8M
1023 bool "Enable 8M DMA region"
1024 config DMA_UNCACHED_4M
1025 bool "Enable 4M DMA region"
1026 config DMA_UNCACHED_2M
1027 bool "Enable 2M DMA region"
1028 config DMA_UNCACHED_1M
1029 bool "Enable 1M DMA region"
1030 config DMA_UNCACHED_512K
1031 bool "Enable 512K DMA region"
1032 config DMA_UNCACHED_256K
1033 bool "Enable 256K DMA region"
1034 config DMA_UNCACHED_128K
1035 bool "Enable 128K DMA region"
1036 config DMA_UNCACHED_NONE
1037 bool "Disable DMA region"
1041 comment "Cache Support"
1044 bool "Enable ICACHE"
1046 config BFIN_EXTMEM_ICACHEABLE
1047 bool "Enable ICACHE for external memory"
1048 depends on BFIN_ICACHE
1050 config BFIN_L2_ICACHEABLE
1051 bool "Enable ICACHE for L2 SRAM"
1052 depends on BFIN_ICACHE
1053 depends on (BF54x || BF561 || BF60x) && !SMP
1057 bool "Enable DCACHE"
1059 config BFIN_DCACHE_BANKA
1060 bool "Enable only 16k BankA DCACHE - BankB is SRAM"
1061 depends on BFIN_DCACHE && !BF531
1063 config BFIN_EXTMEM_DCACHEABLE
1064 bool "Enable DCACHE for external memory"
1065 depends on BFIN_DCACHE
1068 prompt "External memory DCACHE policy"
1069 depends on BFIN_EXTMEM_DCACHEABLE
1070 default BFIN_EXTMEM_WRITEBACK if !SMP
1071 default BFIN_EXTMEM_WRITETHROUGH if SMP
1072 config BFIN_EXTMEM_WRITEBACK
1077 Cached data will be written back to SDRAM only when needed.
1078 This can give a nice increase in performance, but beware of
1079 broken drivers that do not properly invalidate/flush their
1082 Write Through Policy:
1083 Cached data will always be written back to SDRAM when the
1084 cache is updated. This is a completely safe setting, but
1085 performance is worse than Write Back.
1087 If you are unsure of the options and you want to be safe,
1088 then go with Write Through.
1090 config BFIN_EXTMEM_WRITETHROUGH
1091 bool "Write through"
1094 Cached data will be written back to SDRAM only when needed.
1095 This can give a nice increase in performance, but beware of
1096 broken drivers that do not properly invalidate/flush their
1099 Write Through Policy:
1100 Cached data will always be written back to SDRAM when the
1101 cache is updated. This is a completely safe setting, but
1102 performance is worse than Write Back.
1104 If you are unsure of the options and you want to be safe,
1105 then go with Write Through.
1109 config BFIN_L2_DCACHEABLE
1110 bool "Enable DCACHE for L2 SRAM"
1111 depends on BFIN_DCACHE
1112 depends on (BF54x || BF561 || BF60x) && !SMP
1115 prompt "L2 SRAM DCACHE policy"
1116 depends on BFIN_L2_DCACHEABLE
1117 default BFIN_L2_WRITEBACK
1118 config BFIN_L2_WRITEBACK
1121 config BFIN_L2_WRITETHROUGH
1122 bool "Write through"
1126 comment "Memory Protection Unit"
1128 bool "Enable the memory protection unit (EXPERIMENTAL)"
1131 Use the processor's MPU to protect applications from accessing
1132 memory they do not own. This comes at a performance penalty
1133 and is recommended only for debugging.
1135 comment "Asynchronous Memory Configuration"
1137 menu "EBIU_AMGCTL Global Control"
1140 bool "Enable CLKOUT"
1144 bool "DMA has priority over core for ext. accesses"
1149 bool "Bank 0 16 bit packing enable"
1154 bool "Bank 1 16 bit packing enable"
1159 bool "Bank 2 16 bit packing enable"
1164 bool "Bank 3 16 bit packing enable"
1168 prompt "Enable Asynchronous Memory Banks"
1172 bool "Disable All Banks"
1175 bool "Enable Bank 0"
1177 config C_AMBEN_B0_B1
1178 bool "Enable Bank 0 & 1"
1180 config C_AMBEN_B0_B1_B2
1181 bool "Enable Bank 0 & 1 & 2"
1184 bool "Enable All Banks"
1188 menu "EBIU_AMBCTL Control"
1191 hex "Bank 0 (AMBCTL0.L)"
1194 These are the low 16 bits of the EBIU_AMBCTL0 MMR which are
1195 used to control the Asynchronous Memory Bank 0 settings.
1198 hex "Bank 1 (AMBCTL0.H)"
1200 default 0x5558 if BF54x
1202 These are the high 16 bits of the EBIU_AMBCTL0 MMR which are
1203 used to control the Asynchronous Memory Bank 1 settings.
1206 hex "Bank 2 (AMBCTL1.L)"
1209 These are the low 16 bits of the EBIU_AMBCTL1 MMR which are
1210 used to control the Asynchronous Memory Bank 2 settings.
1213 hex "Bank 3 (AMBCTL1.H)"
1216 These are the high 16 bits of the EBIU_AMBCTL1 MMR which are
1217 used to control the Asynchronous Memory Bank 3 settings.
1221 config EBIU_MBSCTLVAL
1222 hex "EBIU Bank Select Control Register"
1227 hex "Flash Memory Mode Control Register"
1232 hex "Flash Memory Bank Control Register"
1237 #############################################################################
1238 menu "Bus options (PCI, PCMCIA, EISA, MCA, ISA)"
1244 Support for PCI bus.
1246 source "drivers/pci/Kconfig"
1248 source "drivers/pcmcia/Kconfig"
1250 source "drivers/pci/hotplug/Kconfig"
1254 menu "Executable file formats"
1256 source "fs/Kconfig.binfmt"
1260 menu "Power management options"
1262 source "kernel/power/Kconfig"
1264 config ARCH_SUSPEND_POSSIBLE
1268 prompt "Standby Power Saving Mode"
1269 depends on PM && !BF60x
1270 default PM_BFIN_SLEEP_DEEPER
1271 config PM_BFIN_SLEEP_DEEPER
1274 Sleep "Deeper" Mode (High Power Savings) - This mode reduces dynamic
1275 power dissipation by disabling the clock to the processor core (CCLK).
1276 Furthermore, Standby sets the internal power supply voltage (VDDINT)
1277 to 0.85 V to provide the greatest power savings, while preserving the
1279 The PLL and system clock (SCLK) continue to operate at a very low
1280 frequency of about 3.3 MHz. To preserve data integrity in the SDRAM,
1281 the SDRAM is put into Self Refresh Mode. Typically an external event
1282 such as GPIO interrupt or RTC activity wakes up the processor.
1283 Various Peripherals such as UART, SPORT, PPI may not function as
1284 normal during Sleep Deeper, due to the reduced SCLK frequency.
1285 When in the sleep mode, system DMA access to L1 memory is not supported.
1287 If unsure, select "Sleep Deeper".
1289 config PM_BFIN_SLEEP
1292 Sleep Mode (High Power Savings) - The sleep mode reduces power
1293 dissipation by disabling the clock to the processor core (CCLK).
1294 The PLL and system clock (SCLK), however, continue to operate in
1295 this mode. Typically an external event or RTC activity will wake
1296 up the processor. When in the sleep mode, system DMA access to L1
1297 memory is not supported.
1299 If unsure, select "Sleep Deeper".
1302 comment "Possible Suspend Mem / Hibernate Wake-Up Sources"
1305 config PM_BFIN_WAKE_PH6
1306 bool "Allow Wake-Up from on-chip PHY or PH6 GP"
1307 depends on PM && (BF51x || BF52x || BF534 || BF536 || BF537)
1310 Enable PHY and PH6 GP Wake-Up (Voltage Regulator Power-Up)
1312 config PM_BFIN_WAKE_GP
1313 bool "Allow Wake-Up from GPIOs"
1314 depends on PM && BF54x
1317 Enable General-Purpose Wake-Up (Voltage Regulator Power-Up)
1318 (all processors, except ADSP-BF549). This option sets
1319 the general-purpose wake-up enable (GPWE) control bit to enable
1320 wake-up upon detection of an active low signal on the /GPW (PH7) pin.
1321 On ADSP-BF549 this option enables the same functionality on the
1322 /MRXON pin also PH7.
1324 config PM_BFIN_WAKE_PA15
1325 bool "Allow Wake-Up from PA15"
1326 depends on PM && BF60x
1331 config PM_BFIN_WAKE_PA15_POL
1332 int "Wake-up priority"
1333 depends on PM_BFIN_WAKE_PA15
1336 Wake-Up priority 0(low) 1(high)
1338 config PM_BFIN_WAKE_PB15
1339 bool "Allow Wake-Up from PB15"
1340 depends on PM && BF60x
1345 config PM_BFIN_WAKE_PB15_POL
1346 int "Wake-up priority"
1347 depends on PM_BFIN_WAKE_PB15
1350 Wake-Up priority 0(low) 1(high)
1352 config PM_BFIN_WAKE_PC15
1353 bool "Allow Wake-Up from PC15"
1354 depends on PM && BF60x
1359 config PM_BFIN_WAKE_PC15_POL
1360 int "Wake-up priority"
1361 depends on PM_BFIN_WAKE_PC15
1364 Wake-Up priority 0(low) 1(high)
1366 config PM_BFIN_WAKE_PD06
1367 bool "Allow Wake-Up from PD06(ETH0_PHYINT)"
1368 depends on PM && BF60x
1371 Enable PD06(ETH0_PHYINT) Wake-up
1373 config PM_BFIN_WAKE_PD06_POL
1374 int "Wake-up priority"
1375 depends on PM_BFIN_WAKE_PD06
1378 Wake-Up priority 0(low) 1(high)
1380 config PM_BFIN_WAKE_PE12
1381 bool "Allow Wake-Up from PE12(ETH1_PHYINT, PUSH BUTTON)"
1382 depends on PM && BF60x
1385 Enable PE12(ETH1_PHYINT, PUSH BUTTON) Wake-up
1387 config PM_BFIN_WAKE_PE12_POL
1388 int "Wake-up priority"
1389 depends on PM_BFIN_WAKE_PE12
1392 Wake-Up priority 0(low) 1(high)
1394 config PM_BFIN_WAKE_PG04
1395 bool "Allow Wake-Up from PG04(CAN0_RX)"
1396 depends on PM && BF60x
1399 Enable PG04(CAN0_RX) Wake-up
1401 config PM_BFIN_WAKE_PG04_POL
1402 int "Wake-up priority"
1403 depends on PM_BFIN_WAKE_PG04
1406 Wake-Up priority 0(low) 1(high)
1408 config PM_BFIN_WAKE_PG13
1409 bool "Allow Wake-Up from PG13"
1410 depends on PM && BF60x
1415 config PM_BFIN_WAKE_PG13_POL
1416 int "Wake-up priority"
1417 depends on PM_BFIN_WAKE_PG13
1420 Wake-Up priority 0(low) 1(high)
1422 config PM_BFIN_WAKE_USB
1423 bool "Allow Wake-Up from (USB)"
1424 depends on PM && BF60x
1427 Enable (USB) Wake-up
1429 config PM_BFIN_WAKE_USB_POL
1430 int "Wake-up priority"
1431 depends on PM_BFIN_WAKE_USB
1434 Wake-Up priority 0(low) 1(high)
1438 menu "CPU Frequency scaling"
1440 source "drivers/cpufreq/Kconfig"
1442 config BFIN_CPU_FREQ
1445 select CPU_FREQ_TABLE
1449 bool "CPU Voltage scaling"
1450 depends on EXPERIMENTAL
1454 Say Y here if you want CPU voltage scaling according to the CPU frequency.
1455 This option violates the PLL BYPASS recommendation in the Blackfin Processor
1456 manuals. There is a theoretical risk that during VDDINT transitions
1461 source "net/Kconfig"
1463 source "drivers/Kconfig"
1465 source "drivers/firmware/Kconfig"
1469 source "arch/blackfin/Kconfig.debug"
1471 source "security/Kconfig"
1473 source "crypto/Kconfig"
1475 source "lib/Kconfig"