7 config RWSEM_GENERIC_SPINLOCK
10 config RWSEM_XCHGADD_ALGORITHM
16 select HAVE_ARCH_TRACEHOOK
17 select HAVE_DYNAMIC_FTRACE
18 select HAVE_FTRACE_MCOUNT_RECORD
19 select HAVE_FUNCTION_GRAPH_TRACER
20 select HAVE_FUNCTION_TRACER
21 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
23 select HAVE_KERNEL_GZIP if RAMKERNEL
24 select HAVE_KERNEL_BZIP2 if RAMKERNEL
25 select HAVE_KERNEL_LZMA if RAMKERNEL
26 select HAVE_KERNEL_LZO if RAMKERNEL
28 select HAVE_PERF_EVENTS
29 select ARCH_HAVE_CUSTOM_GPIO_H
30 select ARCH_REQUIRE_GPIOLIB
32 select HAVE_UNDERSCORE_SYMBOL_PREFIX
34 select ARCH_WANT_IPC_PARSE_VERSION
35 select GENERIC_ATOMIC64
36 select GENERIC_IRQ_PROBE
37 select USE_GENERIC_SMP_HELPERS if SMP
38 select HAVE_NMI_WATCHDOG if NMI_WATCHDOG
39 select GENERIC_SMP_IDLE_THREAD
40 select ARCH_USES_GETTIMEOFFSET if !GENERIC_CLOCKEVENTS
41 select HAVE_MOD_ARCH_SPECIFIC
42 select MODULES_USE_ELF_RELA
43 select HAVE_DEBUG_STACKOVERFLOW
55 config FORCE_MAX_ZONEORDER
59 config GENERIC_CALIBRATE_DELAY
62 config LOCKDEP_SUPPORT
65 config STACKTRACE_SUPPORT
68 config TRACE_IRQFLAGS_SUPPORT
73 source "kernel/Kconfig.preempt"
75 source "kernel/Kconfig.freezer"
77 menu "Blackfin Processor Options"
79 comment "Processor and Board Settings"
88 BF512 Processor Support.
93 BF514 Processor Support.
98 BF516 Processor Support.
103 BF518 Processor Support.
108 BF522 Processor Support.
113 BF523 Processor Support.
118 BF524 Processor Support.
123 BF525 Processor Support.
128 BF526 Processor Support.
133 BF527 Processor Support.
138 BF531 Processor Support.
143 BF532 Processor Support.
148 BF533 Processor Support.
153 BF534 Processor Support.
158 BF536 Processor Support.
163 BF537 Processor Support.
168 BF538 Processor Support.
173 BF539 Processor Support.
178 BF542 Processor Support.
183 BF542 Processor Support.
188 BF544 Processor Support.
193 BF544 Processor Support.
198 BF547 Processor Support.
203 BF547 Processor Support.
208 BF548 Processor Support.
213 BF548 Processor Support.
218 BF549 Processor Support.
223 BF549 Processor Support.
228 BF561 Processor Support.
234 BF609 Processor Support.
240 select TICKSOURCE_CORETMR
241 bool "Symmetric multi-processing support"
243 This enables support for systems with more than one CPU,
244 like the dual core BF561. If you have a system with only one
245 CPU, say N. If you have a system with more than one CPU, say Y.
247 If you don't know what to do here, say N.
255 bool "Support for hot-pluggable CPUs"
261 default 0 if (BF51x || BF52x || (BF54x && !BF54xM)) || BF60x
262 default 2 if (BF537 || BF536 || BF534)
263 default 3 if (BF561 || BF533 || BF532 || BF531 || BF54xM)
264 default 4 if (BF538 || BF539)
268 default 2 if (BF51x || BF52x || (BF54x && !BF54xM)) || BF60x
269 default 3 if (BF537 || BF536 || BF534 || BF54xM)
270 default 5 if (BF561 || BF538 || BF539)
271 default 6 if (BF533 || BF532 || BF531)
275 default BF_REV_0_0 if (BF51x || BF52x || BF60x)
276 default BF_REV_0_2 if (BF534 || BF536 || BF537 || (BF54x && !BF54xM))
277 default BF_REV_0_3 if (BF531 || BF532 || BF533 || BF54xM || BF561)
281 depends on (BF51x || BF52x || (BF54x && !BF54xM) || BF60x)
285 depends on (BF51x || BF52x || (BF54x && !BF54xM) || BF60x)
289 depends on (BF51x || BF52x || BF537 || BF536 || BF534 || (BF54x && !BF54xM))
293 depends on (BF54xM || BF561 || BF537 || BF536 || BF534 || BF533 || BF532 || BF531)
297 depends on (BF561 || BF533 || BF532 || BF531 || BF538 || BF539 || BF54x)
301 depends on (BF561 || BF533 || BF532 || BF531 || BF538 || BF539)
305 depends on (BF533 || BF532 || BF531)
317 depends on (BF531 || BF532 || BF533 || BF534 || BF536 || BF537)
320 config MEM_MT48LC64M4A2FB_7E
322 depends on (BFIN533_STAMP)
325 config MEM_MT48LC16M16A2TG_75
327 depends on (BFIN533_EZKIT || BFIN561_EZKIT \
328 || BFIN533_BLUETECHNIX_CM || BFIN537_BLUETECHNIX_CM_E \
329 || BFIN537_BLUETECHNIX_CM_U || H8606_HVSISTEMAS \
330 || BFIN527_BLUETECHNIX_CM)
333 config MEM_MT48LC32M8A2_75
335 depends on (BFIN518F_EZBRD || BFIN537_STAMP || PNAV10 || BFIN538_EZKIT)
338 config MEM_MT48LC8M32B2B5_7
340 depends on (BFIN561_BLUETECHNIX_CM)
343 config MEM_MT48LC32M16A2TG_75
345 depends on (BFIN527_EZKIT || BFIN527_EZKIT_V2 || BFIN532_IP0X || BLACKSTAMP || BFIN527_AD7160EVAL)
348 config MEM_MT48H32M16LFCJ_75
350 depends on (BFIN526_EZBRD)
353 config MEM_MT47H64M16
355 depends on (BFIN609_EZKIT)
358 source "arch/blackfin/mach-bf518/Kconfig"
359 source "arch/blackfin/mach-bf527/Kconfig"
360 source "arch/blackfin/mach-bf533/Kconfig"
361 source "arch/blackfin/mach-bf561/Kconfig"
362 source "arch/blackfin/mach-bf537/Kconfig"
363 source "arch/blackfin/mach-bf538/Kconfig"
364 source "arch/blackfin/mach-bf548/Kconfig"
365 source "arch/blackfin/mach-bf609/Kconfig"
367 menu "Board customizations"
370 bool "Default bootloader kernel arguments"
373 string "Initial kernel command string"
374 depends on CMDLINE_BOOL
375 default "console=ttyBF0,57600"
377 If you don't have a boot loader capable of passing a command line string
378 to the kernel, you may specify one here. As a minimum, you should specify
379 the memory size and the root device (e.g., mem=8M, root=/dev/nfs).
382 hex "Kernel load address for booting"
384 range 0x1000 0x20000000
386 This option allows you to set the load address of the kernel.
387 This can be useful if you are on a board which has a small amount
388 of memory or you wish to reserve some memory at the beginning of
391 Note that you need to keep this value above 4k (0x1000) as this
392 memory region is used to capture NULL pointer references as well
393 as some core kernel functions.
395 config PHY_RAM_BASE_ADDRESS
396 hex "Physical RAM Base"
399 set BF609 FPGA physical SRAM base address
402 hex "Kernel ROM Base"
405 range 0x20000000 0x20400000 if !(BF54x || BF561 || BF60x)
406 range 0x20000000 0x30000000 if (BF54x || BF561)
407 range 0xB0000000 0xC0000000 if (BF60x)
409 Make sure your ROM base does not include any file-header
410 information that is prepended to the kernel.
412 For example, the bootable U-Boot format (created with
413 mkimage) has a 64 byte header (0x40). So while the image
414 you write to flash might start at say 0x20080000, you have
415 to add 0x40 to get the kernel's ROM base as it will come
418 comment "Clock/PLL Setup"
421 int "Frequency of the crystal on the board in Hz"
422 default "10000000" if BFIN532_IP0X
423 default "11059200" if BFIN533_STAMP
424 default "24576000" if PNAV10
425 default "25000000" # most people use this
426 default "27000000" if BFIN533_EZKIT
427 default "30000000" if BFIN561_EZKIT
428 default "24000000" if BFIN527_AD7160EVAL
430 The frequency of CLKIN crystal oscillator on the board in Hz.
431 Warning: This value should match the crystal on the board. Otherwise,
432 peripherals won't work properly.
434 config BFIN_KERNEL_CLOCK
435 bool "Re-program Clocks while Kernel boots?"
438 This option decides if kernel clocks are re-programed from the
439 bootloader settings. If the clocks are not set, the SDRAM settings
440 are also not changed, and the Bootloader does 100% of the hardware
445 depends on BFIN_KERNEL_CLOCK && (!BF60x)
450 depends on BFIN_KERNEL_CLOCK && (! PLL_BYPASS)
453 If this is set the clock will be divided by 2, before it goes to the PLL.
457 depends on BFIN_KERNEL_CLOCK && (! PLL_BYPASS)
459 default "22" if BFIN533_EZKIT
460 default "45" if BFIN533_STAMP
461 default "20" if (BFIN537_STAMP || BFIN527_EZKIT || BFIN527_EZKIT_V2 || BFIN548_EZKIT || BFIN548_BLUETECHNIX_CM || BFIN538_EZKIT)
462 default "22" if BFIN533_BLUETECHNIX_CM
463 default "20" if (BFIN537_BLUETECHNIX_CM_E || BFIN537_BLUETECHNIX_CM_U || BFIN527_BLUETECHNIX_CM || BFIN561_BLUETECHNIX_CM)
464 default "20" if (BFIN561_EZKIT || BF609)
465 default "16" if (H8606_HVSISTEMAS || BLACKSTAMP || BFIN526_EZBRD || BFIN518F_EZBRD)
466 default "25" if BFIN527_AD7160EVAL
468 This controls the frequency of the on-chip PLL. This can be between 1 and 64.
469 PLL Frequency = (Crystal Frequency) * (this setting)
472 prompt "Core Clock Divider"
473 depends on BFIN_KERNEL_CLOCK
476 This sets the frequency of the core. It can be 1, 2, 4 or 8
477 Core Frequency = (PLL frequency) / (this setting)
493 int "System Clock Divider"
494 depends on BFIN_KERNEL_CLOCK
498 This sets the frequency of the system clock (including SDRAM or DDR) on
499 !BF60x else it set the clock for system buses and provides the
500 source from which SCLK0 and SCLK1 are derived.
501 This can be between 1 and 15
502 System Clock = (PLL frequency) / (this setting)
505 int "System Clock0 Divider"
506 depends on BFIN_KERNEL_CLOCK && BF60x
510 This sets the frequency of the system clock0 for PVP and all other
511 peripherals not clocked by SCLK1.
512 This can be between 1 and 15
513 System Clock0 = (System Clock) / (this setting)
516 int "System Clock1 Divider"
517 depends on BFIN_KERNEL_CLOCK && BF60x
521 This sets the frequency of the system clock1 (including SPORT, SPI and ACM).
522 This can be between 1 and 15
523 System Clock1 = (System Clock) / (this setting)
526 int "DDR Clock Divider"
527 depends on BFIN_KERNEL_CLOCK && BF60x
531 This sets the frequency of the DDR memory.
532 This can be between 1 and 15
533 DDR Clock = (PLL frequency) / (this setting)
536 prompt "DDR SDRAM Chip Type"
537 depends on BFIN_KERNEL_CLOCK
539 default MEM_MT46V32M16_5B
541 config MEM_MT46V32M16_6T
544 config MEM_MT46V32M16_5B
549 prompt "DDR/SDRAM Timing"
550 depends on BFIN_KERNEL_CLOCK && !BF60x
551 default BFIN_KERNEL_CLOCK_MEMINIT_CALC
553 This option allows you to specify Blackfin SDRAM/DDR Timing parameters
554 The calculated SDRAM timing parameters may not be 100%
555 accurate - This option is therefore marked experimental.
557 config BFIN_KERNEL_CLOCK_MEMINIT_CALC
558 bool "Calculate Timings"
560 config BFIN_KERNEL_CLOCK_MEMINIT_SPEC
561 bool "Provide accurate Timings based on target SCLK"
563 Please consult the Blackfin Hardware Reference Manuals as well
564 as the memory device datasheet.
565 http://docs.blackfin.uclinux.org/doku.php?id=bfin:sdram
568 menu "Memory Init Control"
569 depends on BFIN_KERNEL_CLOCK_MEMINIT_SPEC
586 config MEM_EBIU_DDRQUE
603 # Max & Min Speeds for various Chips
607 default 400000000 if BF512
608 default 400000000 if BF514
609 default 400000000 if BF516
610 default 400000000 if BF518
611 default 400000000 if BF522
612 default 600000000 if BF523
613 default 400000000 if BF524
614 default 600000000 if BF525
615 default 400000000 if BF526
616 default 600000000 if BF527
617 default 400000000 if BF531
618 default 400000000 if BF532
619 default 750000000 if BF533
620 default 500000000 if BF534
621 default 400000000 if BF536
622 default 600000000 if BF537
623 default 533333333 if BF538
624 default 533333333 if BF539
625 default 600000000 if BF542
626 default 533333333 if BF544
627 default 600000000 if BF547
628 default 600000000 if BF548
629 default 533333333 if BF549
630 default 600000000 if BF561
631 default 800000000 if BF609
639 default 200000000 if BF609
646 comment "Kernel Timer/Scheduler"
648 source kernel/Kconfig.hz
650 config SET_GENERIC_CLOCKEVENTS
651 bool "Generic clock events"
653 select GENERIC_CLOCKEVENTS
655 menu "Clock event device"
656 depends on GENERIC_CLOCKEVENTS
657 config TICKSOURCE_GPTMR0
662 config TICKSOURCE_CORETMR
668 depends on GENERIC_CLOCKEVENTS
669 config CYCLES_CLOCKSOURCE
672 depends on !BFIN_SCRATCH_REG_CYCLES
675 If you say Y here, you will enable support for using the 'cycles'
676 registers as a clock source. Doing so means you will be unable to
677 safely write to the 'cycles' register during runtime. You will
678 still be able to read it (such as for performance monitoring), but
679 writing the registers will most likely crash the kernel.
681 config GPTMR0_CLOCKSOURCE
684 depends on !TICKSOURCE_GPTMR0
690 prompt "Blackfin Exception Scratch Register"
691 default BFIN_SCRATCH_REG_RETN
693 Select the resource to reserve for the Exception handler:
694 - RETN: Non-Maskable Interrupt (NMI)
695 - RETE: Exception Return (JTAG/ICE)
696 - CYCLES: Performance counter
698 If you are unsure, please select "RETN".
700 config BFIN_SCRATCH_REG_RETN
703 Use the RETN register in the Blackfin exception handler
704 as a stack scratch register. This means you cannot
705 safely use NMI on the Blackfin while running Linux, but
706 you can debug the system with a JTAG ICE and use the
707 CYCLES performance registers.
709 If you are unsure, please select "RETN".
711 config BFIN_SCRATCH_REG_RETE
714 Use the RETE register in the Blackfin exception handler
715 as a stack scratch register. This means you cannot
716 safely use a JTAG ICE while debugging a Blackfin board,
717 but you can safely use the CYCLES performance registers
720 If you are unsure, please select "RETN".
722 config BFIN_SCRATCH_REG_CYCLES
725 Use the CYCLES register in the Blackfin exception handler
726 as a stack scratch register. This means you cannot
727 safely use the CYCLES performance registers on a Blackfin
728 board at anytime, but you can debug the system with a JTAG
731 If you are unsure, please select "RETN".
738 menu "Blackfin Kernel Optimizations"
740 comment "Memory Optimizations"
743 bool "Locate interrupt entry code in L1 Memory"
747 If enabled, interrupt entry code (STORE/RESTORE CONTEXT) is linked
748 into L1 instruction memory. (less latency)
750 config EXCPT_IRQ_SYSC_L1
751 bool "Locate entire ASM lowlevel exception / interrupt - Syscall and CPLB handler code in L1 Memory"
755 If enabled, the entire ASM lowlevel exception and interrupt entry code
756 (STORE/RESTORE CONTEXT) is linked into L1 instruction memory.
760 bool "Locate frequently called do_irq dispatcher function in L1 Memory"
764 If enabled, the frequently called do_irq dispatcher function is linked
765 into L1 instruction memory. (less latency)
767 config CORE_TIMER_IRQ_L1
768 bool "Locate frequently called timer_interrupt() function in L1 Memory"
772 If enabled, the frequently called timer_interrupt() function is linked
773 into L1 instruction memory. (less latency)
776 bool "Locate frequently idle function in L1 Memory"
780 If enabled, the frequently called idle function is linked
781 into L1 instruction memory. (less latency)
784 bool "Locate kernel schedule function in L1 Memory"
788 If enabled, the frequently called kernel schedule is linked
789 into L1 instruction memory. (less latency)
791 config ARITHMETIC_OPS_L1
792 bool "Locate kernel owned arithmetic functions in L1 Memory"
796 If enabled, arithmetic functions are linked
797 into L1 instruction memory. (less latency)
800 bool "Locate access_ok function in L1 Memory"
804 If enabled, the access_ok function is linked
805 into L1 instruction memory. (less latency)
808 bool "Locate memset function in L1 Memory"
812 If enabled, the memset function is linked
813 into L1 instruction memory. (less latency)
816 bool "Locate memcpy function in L1 Memory"
820 If enabled, the memcpy function is linked
821 into L1 instruction memory. (less latency)
824 bool "locate strcmp function in L1 Memory"
828 If enabled, the strcmp function is linked
829 into L1 instruction memory (less latency).
832 bool "locate strncmp function in L1 Memory"
836 If enabled, the strncmp function is linked
837 into L1 instruction memory (less latency).
840 bool "locate strcpy function in L1 Memory"
844 If enabled, the strcpy function is linked
845 into L1 instruction memory (less latency).
848 bool "locate strncpy function in L1 Memory"
852 If enabled, the strncpy function is linked
853 into L1 instruction memory (less latency).
855 config SYS_BFIN_SPINLOCK_L1
856 bool "Locate sys_bfin_spinlock function in L1 Memory"
860 If enabled, sys_bfin_spinlock function is linked
861 into L1 instruction memory. (less latency)
863 config IP_CHECKSUM_L1
864 bool "Locate IP Checksum function in L1 Memory"
868 If enabled, the IP Checksum function is linked
869 into L1 instruction memory. (less latency)
871 config CACHELINE_ALIGNED_L1
872 bool "Locate cacheline_aligned data to L1 Data Memory"
875 depends on !SMP && !BF531 && !CRC32
877 If enabled, cacheline_aligned data is linked
878 into L1 data memory. (less latency)
880 config SYSCALL_TAB_L1
881 bool "Locate Syscall Table L1 Data Memory"
883 depends on !SMP && !BF531
885 If enabled, the Syscall LUT is linked
886 into L1 data memory. (less latency)
888 config CPLB_SWITCH_TAB_L1
889 bool "Locate CPLB Switch Tables L1 Data Memory"
891 depends on !SMP && !BF531
893 If enabled, the CPLB Switch Tables are linked
894 into L1 data memory. (less latency)
896 config ICACHE_FLUSH_L1
897 bool "Locate icache flush funcs in L1 Inst Memory"
900 If enabled, the Blackfin icache flushing functions are linked
901 into L1 instruction memory.
903 Note that this might be required to address anomalies, but
904 these functions are pretty small, so it shouldn't be too bad.
905 If you are using a processor affected by an anomaly, the build
906 system will double check for you and prevent it.
908 config DCACHE_FLUSH_L1
909 bool "Locate dcache flush funcs in L1 Inst Memory"
913 If enabled, the Blackfin dcache flushing functions are linked
914 into L1 instruction memory.
917 bool "Support locating application stack in L1 Scratch Memory"
921 If enabled the application stack can be located in L1
922 scratch memory (less latency).
924 Currently only works with FLAT binaries.
926 config EXCEPTION_L1_SCRATCH
927 bool "Locate exception stack in L1 Scratch Memory"
929 depends on !SMP && !APP_STACK_L1
931 Whenever an exception occurs, use the L1 Scratch memory for
932 stack storage. You cannot place the stacks of FLAT binaries
933 in L1 when using this option.
935 If you don't use L1 Scratch, then you should say Y here.
937 comment "Speed Optimizations"
938 config BFIN_INS_LOWOVERHEAD
939 bool "ins[bwl] low overhead, higher interrupt latency"
943 Reads on the Blackfin are speculative. In Blackfin terms, this means
944 they can be interrupted at any time (even after they have been issued
945 on to the external bus), and re-issued after the interrupt occurs.
946 For memory - this is not a big deal, since memory does not change if
949 If a FIFO is sitting on the end of the read, it will see two reads,
950 when the core only sees one since the FIFO receives both the read
951 which is cancelled (and not delivered to the core) and the one which
952 is re-issued (which is delivered to the core).
954 To solve this, interrupts are turned off before reads occur to
955 I/O space. This option controls which the overhead/latency of
956 controlling interrupts during this time
957 "n" turns interrupts off every read
958 (higher overhead, but lower interrupt latency)
959 "y" turns interrupts off every loop
960 (low overhead, but longer interrupt latency)
962 default behavior is to leave this set to on (type "Y"). If you are experiencing
963 interrupt latency issues, it is safe and OK to turn this off.
968 prompt "Kernel executes from"
970 Choose the memory type that the kernel will be running in.
975 The kernel will be resident in RAM when running.
980 The kernel will be resident in FLASH/ROM when running.
984 # Common code uses "ROMKERNEL" or "XIP_KERNEL", so define both
993 tristate "Enable Blackfin General Purpose Timers API"
996 Enable support for the General Purpose Timers API. If you
999 To compile this driver as a module, choose M here: the module
1000 will be called gptimers.
1003 prompt "Uncached DMA region"
1004 default DMA_UNCACHED_1M
1005 config DMA_UNCACHED_32M
1006 bool "Enable 32M DMA region"
1007 config DMA_UNCACHED_16M
1008 bool "Enable 16M DMA region"
1009 config DMA_UNCACHED_8M
1010 bool "Enable 8M DMA region"
1011 config DMA_UNCACHED_4M
1012 bool "Enable 4M DMA region"
1013 config DMA_UNCACHED_2M
1014 bool "Enable 2M DMA region"
1015 config DMA_UNCACHED_1M
1016 bool "Enable 1M DMA region"
1017 config DMA_UNCACHED_512K
1018 bool "Enable 512K DMA region"
1019 config DMA_UNCACHED_256K
1020 bool "Enable 256K DMA region"
1021 config DMA_UNCACHED_128K
1022 bool "Enable 128K DMA region"
1023 config DMA_UNCACHED_NONE
1024 bool "Disable DMA region"
1028 comment "Cache Support"
1031 bool "Enable ICACHE"
1033 config BFIN_EXTMEM_ICACHEABLE
1034 bool "Enable ICACHE for external memory"
1035 depends on BFIN_ICACHE
1037 config BFIN_L2_ICACHEABLE
1038 bool "Enable ICACHE for L2 SRAM"
1039 depends on BFIN_ICACHE
1040 depends on (BF54x || BF561 || BF60x) && !SMP
1044 bool "Enable DCACHE"
1046 config BFIN_DCACHE_BANKA
1047 bool "Enable only 16k BankA DCACHE - BankB is SRAM"
1048 depends on BFIN_DCACHE && !BF531
1050 config BFIN_EXTMEM_DCACHEABLE
1051 bool "Enable DCACHE for external memory"
1052 depends on BFIN_DCACHE
1055 prompt "External memory DCACHE policy"
1056 depends on BFIN_EXTMEM_DCACHEABLE
1057 default BFIN_EXTMEM_WRITEBACK if !SMP
1058 default BFIN_EXTMEM_WRITETHROUGH if SMP
1059 config BFIN_EXTMEM_WRITEBACK
1064 Cached data will be written back to SDRAM only when needed.
1065 This can give a nice increase in performance, but beware of
1066 broken drivers that do not properly invalidate/flush their
1069 Write Through Policy:
1070 Cached data will always be written back to SDRAM when the
1071 cache is updated. This is a completely safe setting, but
1072 performance is worse than Write Back.
1074 If you are unsure of the options and you want to be safe,
1075 then go with Write Through.
1077 config BFIN_EXTMEM_WRITETHROUGH
1078 bool "Write through"
1081 Cached data will be written back to SDRAM only when needed.
1082 This can give a nice increase in performance, but beware of
1083 broken drivers that do not properly invalidate/flush their
1086 Write Through Policy:
1087 Cached data will always be written back to SDRAM when the
1088 cache is updated. This is a completely safe setting, but
1089 performance is worse than Write Back.
1091 If you are unsure of the options and you want to be safe,
1092 then go with Write Through.
1096 config BFIN_L2_DCACHEABLE
1097 bool "Enable DCACHE for L2 SRAM"
1098 depends on BFIN_DCACHE
1099 depends on (BF54x || BF561 || BF60x) && !SMP
1102 prompt "L2 SRAM DCACHE policy"
1103 depends on BFIN_L2_DCACHEABLE
1104 default BFIN_L2_WRITEBACK
1105 config BFIN_L2_WRITEBACK
1108 config BFIN_L2_WRITETHROUGH
1109 bool "Write through"
1113 comment "Memory Protection Unit"
1115 bool "Enable the memory protection unit"
1118 Use the processor's MPU to protect applications from accessing
1119 memory they do not own. This comes at a performance penalty
1120 and is recommended only for debugging.
1122 comment "Asynchronous Memory Configuration"
1124 menu "EBIU_AMGCTL Global Control"
1127 bool "Enable CLKOUT"
1131 bool "DMA has priority over core for ext. accesses"
1136 bool "Bank 0 16 bit packing enable"
1141 bool "Bank 1 16 bit packing enable"
1146 bool "Bank 2 16 bit packing enable"
1151 bool "Bank 3 16 bit packing enable"
1155 prompt "Enable Asynchronous Memory Banks"
1159 bool "Disable All Banks"
1162 bool "Enable Bank 0"
1164 config C_AMBEN_B0_B1
1165 bool "Enable Bank 0 & 1"
1167 config C_AMBEN_B0_B1_B2
1168 bool "Enable Bank 0 & 1 & 2"
1171 bool "Enable All Banks"
1175 menu "EBIU_AMBCTL Control"
1178 hex "Bank 0 (AMBCTL0.L)"
1181 These are the low 16 bits of the EBIU_AMBCTL0 MMR which are
1182 used to control the Asynchronous Memory Bank 0 settings.
1185 hex "Bank 1 (AMBCTL0.H)"
1187 default 0x5558 if BF54x
1189 These are the high 16 bits of the EBIU_AMBCTL0 MMR which are
1190 used to control the Asynchronous Memory Bank 1 settings.
1193 hex "Bank 2 (AMBCTL1.L)"
1196 These are the low 16 bits of the EBIU_AMBCTL1 MMR which are
1197 used to control the Asynchronous Memory Bank 2 settings.
1200 hex "Bank 3 (AMBCTL1.H)"
1203 These are the high 16 bits of the EBIU_AMBCTL1 MMR which are
1204 used to control the Asynchronous Memory Bank 3 settings.
1208 config EBIU_MBSCTLVAL
1209 hex "EBIU Bank Select Control Register"
1214 hex "Flash Memory Mode Control Register"
1219 hex "Flash Memory Bank Control Register"
1224 #############################################################################
1225 menu "Bus options (PCI, PCMCIA, EISA, MCA, ISA)"
1231 Support for PCI bus.
1233 source "drivers/pci/Kconfig"
1235 source "drivers/pcmcia/Kconfig"
1237 source "drivers/pci/hotplug/Kconfig"
1241 menu "Executable file formats"
1243 source "fs/Kconfig.binfmt"
1247 menu "Power management options"
1249 source "kernel/power/Kconfig"
1251 config ARCH_SUSPEND_POSSIBLE
1255 prompt "Standby Power Saving Mode"
1256 depends on PM && !BF60x
1257 default PM_BFIN_SLEEP_DEEPER
1258 config PM_BFIN_SLEEP_DEEPER
1261 Sleep "Deeper" Mode (High Power Savings) - This mode reduces dynamic
1262 power dissipation by disabling the clock to the processor core (CCLK).
1263 Furthermore, Standby sets the internal power supply voltage (VDDINT)
1264 to 0.85 V to provide the greatest power savings, while preserving the
1266 The PLL and system clock (SCLK) continue to operate at a very low
1267 frequency of about 3.3 MHz. To preserve data integrity in the SDRAM,
1268 the SDRAM is put into Self Refresh Mode. Typically an external event
1269 such as GPIO interrupt or RTC activity wakes up the processor.
1270 Various Peripherals such as UART, SPORT, PPI may not function as
1271 normal during Sleep Deeper, due to the reduced SCLK frequency.
1272 When in the sleep mode, system DMA access to L1 memory is not supported.
1274 If unsure, select "Sleep Deeper".
1276 config PM_BFIN_SLEEP
1279 Sleep Mode (High Power Savings) - The sleep mode reduces power
1280 dissipation by disabling the clock to the processor core (CCLK).
1281 The PLL and system clock (SCLK), however, continue to operate in
1282 this mode. Typically an external event or RTC activity will wake
1283 up the processor. When in the sleep mode, system DMA access to L1
1284 memory is not supported.
1286 If unsure, select "Sleep Deeper".
1289 comment "Possible Suspend Mem / Hibernate Wake-Up Sources"
1292 config PM_BFIN_WAKE_PH6
1293 bool "Allow Wake-Up from on-chip PHY or PH6 GP"
1294 depends on PM && (BF51x || BF52x || BF534 || BF536 || BF537)
1297 Enable PHY and PH6 GP Wake-Up (Voltage Regulator Power-Up)
1299 config PM_BFIN_WAKE_GP
1300 bool "Allow Wake-Up from GPIOs"
1301 depends on PM && BF54x
1304 Enable General-Purpose Wake-Up (Voltage Regulator Power-Up)
1305 (all processors, except ADSP-BF549). This option sets
1306 the general-purpose wake-up enable (GPWE) control bit to enable
1307 wake-up upon detection of an active low signal on the /GPW (PH7) pin.
1308 On ADSP-BF549 this option enables the same functionality on the
1309 /MRXON pin also PH7.
1311 config PM_BFIN_WAKE_PA15
1312 bool "Allow Wake-Up from PA15"
1313 depends on PM && BF60x
1318 config PM_BFIN_WAKE_PA15_POL
1319 int "Wake-up priority"
1320 depends on PM_BFIN_WAKE_PA15
1323 Wake-Up priority 0(low) 1(high)
1325 config PM_BFIN_WAKE_PB15
1326 bool "Allow Wake-Up from PB15"
1327 depends on PM && BF60x
1332 config PM_BFIN_WAKE_PB15_POL
1333 int "Wake-up priority"
1334 depends on PM_BFIN_WAKE_PB15
1337 Wake-Up priority 0(low) 1(high)
1339 config PM_BFIN_WAKE_PC15
1340 bool "Allow Wake-Up from PC15"
1341 depends on PM && BF60x
1346 config PM_BFIN_WAKE_PC15_POL
1347 int "Wake-up priority"
1348 depends on PM_BFIN_WAKE_PC15
1351 Wake-Up priority 0(low) 1(high)
1353 config PM_BFIN_WAKE_PD06
1354 bool "Allow Wake-Up from PD06(ETH0_PHYINT)"
1355 depends on PM && BF60x
1358 Enable PD06(ETH0_PHYINT) Wake-up
1360 config PM_BFIN_WAKE_PD06_POL
1361 int "Wake-up priority"
1362 depends on PM_BFIN_WAKE_PD06
1365 Wake-Up priority 0(low) 1(high)
1367 config PM_BFIN_WAKE_PE12
1368 bool "Allow Wake-Up from PE12(ETH1_PHYINT, PUSH BUTTON)"
1369 depends on PM && BF60x
1372 Enable PE12(ETH1_PHYINT, PUSH BUTTON) Wake-up
1374 config PM_BFIN_WAKE_PE12_POL
1375 int "Wake-up priority"
1376 depends on PM_BFIN_WAKE_PE12
1379 Wake-Up priority 0(low) 1(high)
1381 config PM_BFIN_WAKE_PG04
1382 bool "Allow Wake-Up from PG04(CAN0_RX)"
1383 depends on PM && BF60x
1386 Enable PG04(CAN0_RX) Wake-up
1388 config PM_BFIN_WAKE_PG04_POL
1389 int "Wake-up priority"
1390 depends on PM_BFIN_WAKE_PG04
1393 Wake-Up priority 0(low) 1(high)
1395 config PM_BFIN_WAKE_PG13
1396 bool "Allow Wake-Up from PG13"
1397 depends on PM && BF60x
1402 config PM_BFIN_WAKE_PG13_POL
1403 int "Wake-up priority"
1404 depends on PM_BFIN_WAKE_PG13
1407 Wake-Up priority 0(low) 1(high)
1409 config PM_BFIN_WAKE_USB
1410 bool "Allow Wake-Up from (USB)"
1411 depends on PM && BF60x
1414 Enable (USB) Wake-up
1416 config PM_BFIN_WAKE_USB_POL
1417 int "Wake-up priority"
1418 depends on PM_BFIN_WAKE_USB
1421 Wake-Up priority 0(low) 1(high)
1425 menu "CPU Frequency scaling"
1427 source "drivers/cpufreq/Kconfig"
1429 config BFIN_CPU_FREQ
1432 select CPU_FREQ_TABLE
1436 bool "CPU Voltage scaling"
1440 Say Y here if you want CPU voltage scaling according to the CPU frequency.
1441 This option violates the PLL BYPASS recommendation in the Blackfin Processor
1442 manuals. There is a theoretical risk that during VDDINT transitions
1447 source "net/Kconfig"
1449 source "drivers/Kconfig"
1451 source "drivers/firmware/Kconfig"
1455 source "arch/blackfin/Kconfig.debug"
1457 source "security/Kconfig"
1459 source "crypto/Kconfig"
1461 source "lib/Kconfig"