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 ARCH_WANT_IPC_PARSE_VERSION
37 select HAVE_GENERIC_HARDIRQS
38 select GENERIC_ATOMIC64
39 select GENERIC_IRQ_PROBE
40 select IRQ_PER_CPU if SMP
41 select HAVE_NMI_WATCHDOG if NMI_WATCHDOG
42 select GENERIC_SMP_IDLE_THREAD
43 select ARCH_USES_GETTIMEOFFSET if !GENERIC_CLOCKEVENTS
58 config FORCE_MAX_ZONEORDER
62 config GENERIC_CALIBRATE_DELAY
65 config LOCKDEP_SUPPORT
68 config STACKTRACE_SUPPORT
71 config TRACE_IRQFLAGS_SUPPORT
76 source "kernel/Kconfig.preempt"
78 source "kernel/Kconfig.freezer"
80 menu "Blackfin Processor Options"
82 comment "Processor and Board Settings"
91 BF512 Processor Support.
96 BF514 Processor Support.
101 BF516 Processor Support.
106 BF518 Processor Support.
111 BF522 Processor Support.
116 BF523 Processor Support.
121 BF524 Processor Support.
126 BF525 Processor Support.
131 BF526 Processor Support.
136 BF527 Processor Support.
141 BF531 Processor Support.
146 BF532 Processor Support.
151 BF533 Processor Support.
156 BF534 Processor Support.
161 BF536 Processor Support.
166 BF537 Processor Support.
171 BF538 Processor Support.
176 BF539 Processor Support.
181 BF542 Processor Support.
186 BF542 Processor Support.
191 BF544 Processor Support.
196 BF544 Processor Support.
201 BF547 Processor Support.
206 BF547 Processor Support.
211 BF548 Processor Support.
216 BF548 Processor Support.
221 BF549 Processor Support.
226 BF549 Processor Support.
231 BF561 Processor Support.
237 BF609 Processor Support.
243 select TICKSOURCE_CORETMR
244 bool "Symmetric multi-processing support"
246 This enables support for systems with more than one CPU,
247 like the dual core BF561. If you have a system with only one
248 CPU, say N. If you have a system with more than one CPU, say Y.
250 If you don't know what to do here, say N.
258 bool "Support for hot-pluggable CPUs"
259 depends on SMP && HOTPLUG
264 default 0 if (BF51x || BF52x || (BF54x && !BF54xM)) || BF60x
265 default 2 if (BF537 || BF536 || BF534)
266 default 3 if (BF561 || BF533 || BF532 || BF531 || BF54xM)
267 default 4 if (BF538 || BF539)
271 default 2 if (BF51x || BF52x || (BF54x && !BF54xM)) || BF60x
272 default 3 if (BF537 || BF536 || BF534 || BF54xM)
273 default 5 if (BF561 || BF538 || BF539)
274 default 6 if (BF533 || BF532 || BF531)
278 default BF_REV_0_0 if (BF51x || BF52x || BF60x)
279 default BF_REV_0_2 if (BF534 || BF536 || BF537 || (BF54x && !BF54xM))
280 default BF_REV_0_3 if (BF531 || BF532 || BF533 || BF54xM || BF561)
284 depends on (BF51x || BF52x || (BF54x && !BF54xM) || BF60x)
288 depends on (BF51x || BF52x || (BF54x && !BF54xM))
292 depends on (BF51x || BF52x || BF537 || BF536 || BF534 || (BF54x && !BF54xM))
296 depends on (BF54xM || BF561 || BF537 || BF536 || BF534 || BF533 || BF532 || BF531)
300 depends on (BF561 || BF533 || BF532 || BF531 || BF538 || BF539)
304 depends on (BF561 || BF533 || BF532 || BF531 || BF538 || BF539)
308 depends on (BF533 || BF532 || BF531)
320 depends on (BF531 || BF532 || BF533 || BF534 || BF536 || BF537)
323 config MEM_MT48LC64M4A2FB_7E
325 depends on (BFIN533_STAMP)
328 config MEM_MT48LC16M16A2TG_75
330 depends on (BFIN533_EZKIT || BFIN561_EZKIT \
331 || BFIN533_BLUETECHNIX_CM || BFIN537_BLUETECHNIX_CM_E \
332 || BFIN537_BLUETECHNIX_CM_U || H8606_HVSISTEMAS \
333 || BFIN527_BLUETECHNIX_CM)
336 config MEM_MT48LC32M8A2_75
338 depends on (BFIN518F_EZBRD || BFIN537_STAMP || PNAV10 || BFIN538_EZKIT)
341 config MEM_MT48LC8M32B2B5_7
343 depends on (BFIN561_BLUETECHNIX_CM)
346 config MEM_MT48LC32M16A2TG_75
348 depends on (BFIN527_EZKIT || BFIN527_EZKIT_V2 || BFIN532_IP0X || BLACKSTAMP || BFIN527_AD7160EVAL)
351 config MEM_MT48H32M16LFCJ_75
353 depends on (BFIN526_EZBRD)
356 config MEM_MT47H64M16
358 depends on (BFIN609_EZKIT)
361 source "arch/blackfin/mach-bf518/Kconfig"
362 source "arch/blackfin/mach-bf527/Kconfig"
363 source "arch/blackfin/mach-bf533/Kconfig"
364 source "arch/blackfin/mach-bf561/Kconfig"
365 source "arch/blackfin/mach-bf537/Kconfig"
366 source "arch/blackfin/mach-bf538/Kconfig"
367 source "arch/blackfin/mach-bf548/Kconfig"
368 source "arch/blackfin/mach-bf609/Kconfig"
370 menu "Board customizations"
373 bool "Default bootloader kernel arguments"
376 string "Initial kernel command string"
377 depends on CMDLINE_BOOL
378 default "console=ttyBF0,57600"
380 If you don't have a boot loader capable of passing a command line string
381 to the kernel, you may specify one here. As a minimum, you should specify
382 the memory size and the root device (e.g., mem=8M, root=/dev/nfs).
385 hex "Kernel load address for booting"
387 range 0x1000 0x20000000
389 This option allows you to set the load address of the kernel.
390 This can be useful if you are on a board which has a small amount
391 of memory or you wish to reserve some memory at the beginning of
394 Note that you need to keep this value above 4k (0x1000) as this
395 memory region is used to capture NULL pointer references as well
396 as some core kernel functions.
398 config PHY_RAM_BASE_ADDRESS
399 hex "Physical RAM Base"
402 set BF609 FPGA physical SRAM base address
405 hex "Kernel ROM Base"
408 range 0x20000000 0x20400000 if !(BF54x || BF561 || BF60x)
409 range 0x20000000 0x30000000 if (BF54x || BF561)
410 range 0xB0000000 0xC0000000 if (BF60x)
412 Make sure your ROM base does not include any file-header
413 information that is prepended to the kernel.
415 For example, the bootable U-Boot format (created with
416 mkimage) has a 64 byte header (0x40). So while the image
417 you write to flash might start at say 0x20080000, you have
418 to add 0x40 to get the kernel's ROM base as it will come
421 comment "Clock/PLL Setup"
424 int "Frequency of the crystal on the board in Hz"
425 default "10000000" if BFIN532_IP0X
426 default "11059200" if BFIN533_STAMP
427 default "24576000" if PNAV10
428 default "25000000" # most people use this
429 default "27000000" if BFIN533_EZKIT
430 default "30000000" if BFIN561_EZKIT
431 default "24000000" if BFIN527_AD7160EVAL
433 The frequency of CLKIN crystal oscillator on the board in Hz.
434 Warning: This value should match the crystal on the board. Otherwise,
435 peripherals won't work properly.
437 config BFIN_KERNEL_CLOCK
438 bool "Re-program Clocks while Kernel boots?"
441 This option decides if kernel clocks are re-programed from the
442 bootloader settings. If the clocks are not set, the SDRAM settings
443 are also not changed, and the Bootloader does 100% of the hardware
448 depends on BFIN_KERNEL_CLOCK && (!BF60x)
453 depends on BFIN_KERNEL_CLOCK && (! PLL_BYPASS)
456 If this is set the clock will be divided by 2, before it goes to the PLL.
460 depends on BFIN_KERNEL_CLOCK && (! PLL_BYPASS)
462 default "22" if BFIN533_EZKIT
463 default "45" if BFIN533_STAMP
464 default "20" if (BFIN537_STAMP || BFIN527_EZKIT || BFIN527_EZKIT_V2 || BFIN548_EZKIT || BFIN548_BLUETECHNIX_CM || BFIN538_EZKIT)
465 default "22" if BFIN533_BLUETECHNIX_CM
466 default "20" if (BFIN537_BLUETECHNIX_CM_E || BFIN537_BLUETECHNIX_CM_U || BFIN527_BLUETECHNIX_CM || BFIN561_BLUETECHNIX_CM)
467 default "20" if (BFIN561_EZKIT || BF609)
468 default "16" if (H8606_HVSISTEMAS || BLACKSTAMP || BFIN526_EZBRD || BFIN518F_EZBRD)
469 default "25" if BFIN527_AD7160EVAL
471 This controls the frequency of the on-chip PLL. This can be between 1 and 64.
472 PLL Frequency = (Crystal Frequency) * (this setting)
475 prompt "Core Clock Divider"
476 depends on BFIN_KERNEL_CLOCK
479 This sets the frequency of the core. It can be 1, 2, 4 or 8
480 Core Frequency = (PLL frequency) / (this setting)
496 int "System Clock Divider"
497 depends on BFIN_KERNEL_CLOCK
501 This sets the frequency of the system clock (including SDRAM or DDR) on
502 !BF60x else it set the clock for system buses and provides the
503 source from which SCLK0 and SCLK1 are derived.
504 This can be between 1 and 15
505 System Clock = (PLL frequency) / (this setting)
508 int "System Clock0 Divider"
509 depends on BFIN_KERNEL_CLOCK && BF60x
513 This sets the frequency of the system clock0 for PVP and all other
514 peripherals not clocked by SCLK1.
515 This can be between 1 and 15
516 System Clock0 = (System Clock) / (this setting)
519 int "System Clock1 Divider"
520 depends on BFIN_KERNEL_CLOCK && BF60x
524 This sets the frequency of the system clock1 (including SPORT, SPI and ACM).
525 This can be between 1 and 15
526 System Clock1 = (System Clock) / (this setting)
529 int "DDR Clock Divider"
530 depends on BFIN_KERNEL_CLOCK && BF60x
534 This sets the frequency of the DDR memory.
535 This can be between 1 and 15
536 DDR Clock = (PLL frequency) / (this setting)
539 prompt "DDR SDRAM Chip Type"
540 depends on BFIN_KERNEL_CLOCK
542 default MEM_MT46V32M16_5B
544 config MEM_MT46V32M16_6T
547 config MEM_MT46V32M16_5B
552 prompt "DDR/SDRAM Timing"
553 depends on BFIN_KERNEL_CLOCK && !BF60x
554 default BFIN_KERNEL_CLOCK_MEMINIT_CALC
556 This option allows you to specify Blackfin SDRAM/DDR Timing parameters
557 The calculated SDRAM timing parameters may not be 100%
558 accurate - This option is therefore marked experimental.
560 config BFIN_KERNEL_CLOCK_MEMINIT_CALC
561 bool "Calculate Timings (EXPERIMENTAL)"
562 depends on EXPERIMENTAL
564 config BFIN_KERNEL_CLOCK_MEMINIT_SPEC
565 bool "Provide accurate Timings based on target SCLK"
567 Please consult the Blackfin Hardware Reference Manuals as well
568 as the memory device datasheet.
569 http://docs.blackfin.uclinux.org/doku.php?id=bfin:sdram
572 menu "Memory Init Control"
573 depends on BFIN_KERNEL_CLOCK_MEMINIT_SPEC
590 config MEM_EBIU_DDRQUE
607 # Max & Min Speeds for various Chips
611 default 400000000 if BF512
612 default 400000000 if BF514
613 default 400000000 if BF516
614 default 400000000 if BF518
615 default 400000000 if BF522
616 default 600000000 if BF523
617 default 400000000 if BF524
618 default 600000000 if BF525
619 default 400000000 if BF526
620 default 600000000 if BF527
621 default 400000000 if BF531
622 default 400000000 if BF532
623 default 750000000 if BF533
624 default 500000000 if BF534
625 default 400000000 if BF536
626 default 600000000 if BF537
627 default 533333333 if BF538
628 default 533333333 if BF539
629 default 600000000 if BF542
630 default 533333333 if BF544
631 default 600000000 if BF547
632 default 600000000 if BF548
633 default 533333333 if BF549
634 default 600000000 if BF561
635 default 800000000 if BF609
643 default 200000000 if BF609
650 comment "Kernel Timer/Scheduler"
652 source kernel/Kconfig.hz
654 config SET_GENERIC_CLOCKEVENTS
655 bool "Generic clock events"
657 select GENERIC_CLOCKEVENTS
659 menu "Clock event device"
660 depends on GENERIC_CLOCKEVENTS
661 config TICKSOURCE_GPTMR0
666 config TICKSOURCE_CORETMR
672 depends on GENERIC_CLOCKEVENTS
673 config CYCLES_CLOCKSOURCE
676 depends on !BFIN_SCRATCH_REG_CYCLES
679 If you say Y here, you will enable support for using the 'cycles'
680 registers as a clock source. Doing so means you will be unable to
681 safely write to the 'cycles' register during runtime. You will
682 still be able to read it (such as for performance monitoring), but
683 writing the registers will most likely crash the kernel.
685 config GPTMR0_CLOCKSOURCE
688 depends on !TICKSOURCE_GPTMR0
694 prompt "Blackfin Exception Scratch Register"
695 default BFIN_SCRATCH_REG_RETN
697 Select the resource to reserve for the Exception handler:
698 - RETN: Non-Maskable Interrupt (NMI)
699 - RETE: Exception Return (JTAG/ICE)
700 - CYCLES: Performance counter
702 If you are unsure, please select "RETN".
704 config BFIN_SCRATCH_REG_RETN
707 Use the RETN register in the Blackfin exception handler
708 as a stack scratch register. This means you cannot
709 safely use NMI on the Blackfin while running Linux, but
710 you can debug the system with a JTAG ICE and use the
711 CYCLES performance registers.
713 If you are unsure, please select "RETN".
715 config BFIN_SCRATCH_REG_RETE
718 Use the RETE register in the Blackfin exception handler
719 as a stack scratch register. This means you cannot
720 safely use a JTAG ICE while debugging a Blackfin board,
721 but you can safely use the CYCLES performance registers
724 If you are unsure, please select "RETN".
726 config BFIN_SCRATCH_REG_CYCLES
729 Use the CYCLES register in the Blackfin exception handler
730 as a stack scratch register. This means you cannot
731 safely use the CYCLES performance registers on a Blackfin
732 board at anytime, but you can debug the system with a JTAG
735 If you are unsure, please select "RETN".
742 menu "Blackfin Kernel Optimizations"
744 comment "Memory Optimizations"
747 bool "Locate interrupt entry code in L1 Memory"
751 If enabled, interrupt entry code (STORE/RESTORE CONTEXT) is linked
752 into L1 instruction memory. (less latency)
754 config EXCPT_IRQ_SYSC_L1
755 bool "Locate entire ASM lowlevel exception / interrupt - Syscall and CPLB handler code in L1 Memory"
759 If enabled, the entire ASM lowlevel exception and interrupt entry code
760 (STORE/RESTORE CONTEXT) is linked into L1 instruction memory.
764 bool "Locate frequently called do_irq dispatcher function in L1 Memory"
768 If enabled, the frequently called do_irq dispatcher function is linked
769 into L1 instruction memory. (less latency)
771 config CORE_TIMER_IRQ_L1
772 bool "Locate frequently called timer_interrupt() function in L1 Memory"
776 If enabled, the frequently called timer_interrupt() function is linked
777 into L1 instruction memory. (less latency)
780 bool "Locate frequently idle function in L1 Memory"
784 If enabled, the frequently called idle function is linked
785 into L1 instruction memory. (less latency)
788 bool "Locate kernel schedule function in L1 Memory"
792 If enabled, the frequently called kernel schedule is linked
793 into L1 instruction memory. (less latency)
795 config ARITHMETIC_OPS_L1
796 bool "Locate kernel owned arithmetic functions in L1 Memory"
800 If enabled, arithmetic functions are linked
801 into L1 instruction memory. (less latency)
804 bool "Locate access_ok function in L1 Memory"
808 If enabled, the access_ok function is linked
809 into L1 instruction memory. (less latency)
812 bool "Locate memset function in L1 Memory"
816 If enabled, the memset function is linked
817 into L1 instruction memory. (less latency)
820 bool "Locate memcpy function in L1 Memory"
824 If enabled, the memcpy function is linked
825 into L1 instruction memory. (less latency)
828 bool "locate strcmp function in L1 Memory"
832 If enabled, the strcmp function is linked
833 into L1 instruction memory (less latency).
836 bool "locate strncmp function in L1 Memory"
840 If enabled, the strncmp function is linked
841 into L1 instruction memory (less latency).
844 bool "locate strcpy function in L1 Memory"
848 If enabled, the strcpy function is linked
849 into L1 instruction memory (less latency).
852 bool "locate strncpy function in L1 Memory"
856 If enabled, the strncpy function is linked
857 into L1 instruction memory (less latency).
859 config SYS_BFIN_SPINLOCK_L1
860 bool "Locate sys_bfin_spinlock function in L1 Memory"
864 If enabled, sys_bfin_spinlock function is linked
865 into L1 instruction memory. (less latency)
867 config IP_CHECKSUM_L1
868 bool "Locate IP Checksum function in L1 Memory"
872 If enabled, the IP Checksum function is linked
873 into L1 instruction memory. (less latency)
875 config CACHELINE_ALIGNED_L1
876 bool "Locate cacheline_aligned data to L1 Data Memory"
879 depends on !SMP && !BF531 && !CRC32
881 If enabled, cacheline_aligned data is linked
882 into L1 data memory. (less latency)
884 config SYSCALL_TAB_L1
885 bool "Locate Syscall Table L1 Data Memory"
887 depends on !SMP && !BF531
889 If enabled, the Syscall LUT is linked
890 into L1 data memory. (less latency)
892 config CPLB_SWITCH_TAB_L1
893 bool "Locate CPLB Switch Tables L1 Data Memory"
895 depends on !SMP && !BF531
897 If enabled, the CPLB Switch Tables are linked
898 into L1 data memory. (less latency)
900 config ICACHE_FLUSH_L1
901 bool "Locate icache flush funcs in L1 Inst Memory"
904 If enabled, the Blackfin icache flushing functions are linked
905 into L1 instruction memory.
907 Note that this might be required to address anomalies, but
908 these functions are pretty small, so it shouldn't be too bad.
909 If you are using a processor affected by an anomaly, the build
910 system will double check for you and prevent it.
912 config DCACHE_FLUSH_L1
913 bool "Locate dcache flush funcs in L1 Inst Memory"
917 If enabled, the Blackfin dcache flushing functions are linked
918 into L1 instruction memory.
921 bool "Support locating application stack in L1 Scratch Memory"
925 If enabled the application stack can be located in L1
926 scratch memory (less latency).
928 Currently only works with FLAT binaries.
930 config EXCEPTION_L1_SCRATCH
931 bool "Locate exception stack in L1 Scratch Memory"
933 depends on !SMP && !APP_STACK_L1
935 Whenever an exception occurs, use the L1 Scratch memory for
936 stack storage. You cannot place the stacks of FLAT binaries
937 in L1 when using this option.
939 If you don't use L1 Scratch, then you should say Y here.
941 comment "Speed Optimizations"
942 config BFIN_INS_LOWOVERHEAD
943 bool "ins[bwl] low overhead, higher interrupt latency"
947 Reads on the Blackfin are speculative. In Blackfin terms, this means
948 they can be interrupted at any time (even after they have been issued
949 on to the external bus), and re-issued after the interrupt occurs.
950 For memory - this is not a big deal, since memory does not change if
953 If a FIFO is sitting on the end of the read, it will see two reads,
954 when the core only sees one since the FIFO receives both the read
955 which is cancelled (and not delivered to the core) and the one which
956 is re-issued (which is delivered to the core).
958 To solve this, interrupts are turned off before reads occur to
959 I/O space. This option controls which the overhead/latency of
960 controlling interrupts during this time
961 "n" turns interrupts off every read
962 (higher overhead, but lower interrupt latency)
963 "y" turns interrupts off every loop
964 (low overhead, but longer interrupt latency)
966 default behavior is to leave this set to on (type "Y"). If you are experiencing
967 interrupt latency issues, it is safe and OK to turn this off.
972 prompt "Kernel executes from"
974 Choose the memory type that the kernel will be running in.
979 The kernel will be resident in RAM when running.
984 The kernel will be resident in FLASH/ROM when running.
988 # Common code uses "ROMKERNEL" or "XIP_KERNEL", so define both
997 tristate "Enable Blackfin General Purpose Timers API"
1000 Enable support for the General Purpose Timers API. If you
1003 To compile this driver as a module, choose M here: the module
1004 will be called gptimers.
1007 tristate "Enable PWM API support"
1008 depends on BFIN_GPTIMERS
1010 Enable support for the Pulse Width Modulation framework (as
1011 found in linux/pwm.h).
1013 To compile this driver as a module, choose M here: the module
1017 prompt "Uncached DMA region"
1018 default DMA_UNCACHED_1M
1019 config DMA_UNCACHED_32M
1020 bool "Enable 32M DMA region"
1021 config DMA_UNCACHED_16M
1022 bool "Enable 16M DMA region"
1023 config DMA_UNCACHED_8M
1024 bool "Enable 8M DMA region"
1025 config DMA_UNCACHED_4M
1026 bool "Enable 4M DMA region"
1027 config DMA_UNCACHED_2M
1028 bool "Enable 2M DMA region"
1029 config DMA_UNCACHED_1M
1030 bool "Enable 1M DMA region"
1031 config DMA_UNCACHED_512K
1032 bool "Enable 512K DMA region"
1033 config DMA_UNCACHED_256K
1034 bool "Enable 256K DMA region"
1035 config DMA_UNCACHED_128K
1036 bool "Enable 128K DMA region"
1037 config DMA_UNCACHED_NONE
1038 bool "Disable DMA region"
1042 comment "Cache Support"
1045 bool "Enable ICACHE"
1047 config BFIN_EXTMEM_ICACHEABLE
1048 bool "Enable ICACHE for external memory"
1049 depends on BFIN_ICACHE
1051 config BFIN_L2_ICACHEABLE
1052 bool "Enable ICACHE for L2 SRAM"
1053 depends on BFIN_ICACHE
1054 depends on (BF54x || BF561 || BF60x) && !SMP
1058 bool "Enable DCACHE"
1060 config BFIN_DCACHE_BANKA
1061 bool "Enable only 16k BankA DCACHE - BankB is SRAM"
1062 depends on BFIN_DCACHE && !BF531
1064 config BFIN_EXTMEM_DCACHEABLE
1065 bool "Enable DCACHE for external memory"
1066 depends on BFIN_DCACHE
1069 prompt "External memory DCACHE policy"
1070 depends on BFIN_EXTMEM_DCACHEABLE
1071 default BFIN_EXTMEM_WRITEBACK if !SMP
1072 default BFIN_EXTMEM_WRITETHROUGH if SMP
1073 config BFIN_EXTMEM_WRITEBACK
1078 Cached data will be written back to SDRAM only when needed.
1079 This can give a nice increase in performance, but beware of
1080 broken drivers that do not properly invalidate/flush their
1083 Write Through Policy:
1084 Cached data will always be written back to SDRAM when the
1085 cache is updated. This is a completely safe setting, but
1086 performance is worse than Write Back.
1088 If you are unsure of the options and you want to be safe,
1089 then go with Write Through.
1091 config BFIN_EXTMEM_WRITETHROUGH
1092 bool "Write through"
1095 Cached data will be written back to SDRAM only when needed.
1096 This can give a nice increase in performance, but beware of
1097 broken drivers that do not properly invalidate/flush their
1100 Write Through Policy:
1101 Cached data will always be written back to SDRAM when the
1102 cache is updated. This is a completely safe setting, but
1103 performance is worse than Write Back.
1105 If you are unsure of the options and you want to be safe,
1106 then go with Write Through.
1110 config BFIN_L2_DCACHEABLE
1111 bool "Enable DCACHE for L2 SRAM"
1112 depends on BFIN_DCACHE
1113 depends on (BF54x || BF561 || BF60x) && !SMP
1116 prompt "L2 SRAM DCACHE policy"
1117 depends on BFIN_L2_DCACHEABLE
1118 default BFIN_L2_WRITEBACK
1119 config BFIN_L2_WRITEBACK
1122 config BFIN_L2_WRITETHROUGH
1123 bool "Write through"
1127 comment "Memory Protection Unit"
1129 bool "Enable the memory protection unit (EXPERIMENTAL)"
1132 Use the processor's MPU to protect applications from accessing
1133 memory they do not own. This comes at a performance penalty
1134 and is recommended only for debugging.
1136 comment "Asynchronous Memory Configuration"
1138 menu "EBIU_AMGCTL Global Control"
1141 bool "Enable CLKOUT"
1145 bool "DMA has priority over core for ext. accesses"
1150 bool "Bank 0 16 bit packing enable"
1155 bool "Bank 1 16 bit packing enable"
1160 bool "Bank 2 16 bit packing enable"
1165 bool "Bank 3 16 bit packing enable"
1169 prompt "Enable Asynchronous Memory Banks"
1173 bool "Disable All Banks"
1176 bool "Enable Bank 0"
1178 config C_AMBEN_B0_B1
1179 bool "Enable Bank 0 & 1"
1181 config C_AMBEN_B0_B1_B2
1182 bool "Enable Bank 0 & 1 & 2"
1185 bool "Enable All Banks"
1189 menu "EBIU_AMBCTL Control"
1192 hex "Bank 0 (AMBCTL0.L)"
1195 These are the low 16 bits of the EBIU_AMBCTL0 MMR which are
1196 used to control the Asynchronous Memory Bank 0 settings.
1199 hex "Bank 1 (AMBCTL0.H)"
1201 default 0x5558 if BF54x
1203 These are the high 16 bits of the EBIU_AMBCTL0 MMR which are
1204 used to control the Asynchronous Memory Bank 1 settings.
1207 hex "Bank 2 (AMBCTL1.L)"
1210 These are the low 16 bits of the EBIU_AMBCTL1 MMR which are
1211 used to control the Asynchronous Memory Bank 2 settings.
1214 hex "Bank 3 (AMBCTL1.H)"
1217 These are the high 16 bits of the EBIU_AMBCTL1 MMR which are
1218 used to control the Asynchronous Memory Bank 3 settings.
1222 config EBIU_MBSCTLVAL
1223 hex "EBIU Bank Select Control Register"
1228 hex "Flash Memory Mode Control Register"
1233 hex "Flash Memory Bank Control Register"
1238 #############################################################################
1239 menu "Bus options (PCI, PCMCIA, EISA, MCA, ISA)"
1245 Support for PCI bus.
1247 source "drivers/pci/Kconfig"
1249 source "drivers/pcmcia/Kconfig"
1251 source "drivers/pci/hotplug/Kconfig"
1255 menu "Executable file formats"
1257 source "fs/Kconfig.binfmt"
1261 menu "Power management options"
1263 source "kernel/power/Kconfig"
1265 config ARCH_SUSPEND_POSSIBLE
1269 prompt "Standby Power Saving Mode"
1270 depends on PM && !BF60x
1271 default PM_BFIN_SLEEP_DEEPER
1272 config PM_BFIN_SLEEP_DEEPER
1275 Sleep "Deeper" Mode (High Power Savings) - This mode reduces dynamic
1276 power dissipation by disabling the clock to the processor core (CCLK).
1277 Furthermore, Standby sets the internal power supply voltage (VDDINT)
1278 to 0.85 V to provide the greatest power savings, while preserving the
1280 The PLL and system clock (SCLK) continue to operate at a very low
1281 frequency of about 3.3 MHz. To preserve data integrity in the SDRAM,
1282 the SDRAM is put into Self Refresh Mode. Typically an external event
1283 such as GPIO interrupt or RTC activity wakes up the processor.
1284 Various Peripherals such as UART, SPORT, PPI may not function as
1285 normal during Sleep Deeper, due to the reduced SCLK frequency.
1286 When in the sleep mode, system DMA access to L1 memory is not supported.
1288 If unsure, select "Sleep Deeper".
1290 config PM_BFIN_SLEEP
1293 Sleep Mode (High Power Savings) - The sleep mode reduces power
1294 dissipation by disabling the clock to the processor core (CCLK).
1295 The PLL and system clock (SCLK), however, continue to operate in
1296 this mode. Typically an external event or RTC activity will wake
1297 up the processor. When in the sleep mode, system DMA access to L1
1298 memory is not supported.
1300 If unsure, select "Sleep Deeper".
1303 comment "Possible Suspend Mem / Hibernate Wake-Up Sources"
1306 config PM_BFIN_WAKE_PH6
1307 bool "Allow Wake-Up from on-chip PHY or PH6 GP"
1308 depends on PM && (BF51x || BF52x || BF534 || BF536 || BF537)
1311 Enable PHY and PH6 GP Wake-Up (Voltage Regulator Power-Up)
1313 config PM_BFIN_WAKE_GP
1314 bool "Allow Wake-Up from GPIOs"
1315 depends on PM && BF54x
1318 Enable General-Purpose Wake-Up (Voltage Regulator Power-Up)
1319 (all processors, except ADSP-BF549). This option sets
1320 the general-purpose wake-up enable (GPWE) control bit to enable
1321 wake-up upon detection of an active low signal on the /GPW (PH7) pin.
1322 On ADSP-BF549 this option enables the same functionality on the
1323 /MRXON pin also PH7.
1325 config PM_BFIN_WAKE_PA15
1326 bool "Allow Wake-Up from PA15"
1327 depends on PM && BF60x
1332 config PM_BFIN_WAKE_PA15_POL
1333 int "Wake-up priority"
1334 depends on PM_BFIN_WAKE_PA15
1337 Wake-Up priority 0(low) 1(high)
1339 config PM_BFIN_WAKE_PB15
1340 bool "Allow Wake-Up from PB15"
1341 depends on PM && BF60x
1346 config PM_BFIN_WAKE_PB15_POL
1347 int "Wake-up priority"
1348 depends on PM_BFIN_WAKE_PB15
1351 Wake-Up priority 0(low) 1(high)
1353 config PM_BFIN_WAKE_PC15
1354 bool "Allow Wake-Up from PC15"
1355 depends on PM && BF60x
1360 config PM_BFIN_WAKE_PC15_POL
1361 int "Wake-up priority"
1362 depends on PM_BFIN_WAKE_PC15
1365 Wake-Up priority 0(low) 1(high)
1367 config PM_BFIN_WAKE_PD06
1368 bool "Allow Wake-Up from PD06(ETH0_PHYINT)"
1369 depends on PM && BF60x
1372 Enable PD06(ETH0_PHYINT) Wake-up
1374 config PM_BFIN_WAKE_PD06_POL
1375 int "Wake-up priority"
1376 depends on PM_BFIN_WAKE_PD06
1379 Wake-Up priority 0(low) 1(high)
1381 config PM_BFIN_WAKE_PE12
1382 bool "Allow Wake-Up from PE12(ETH1_PHYINT, PUSH BUTTON)"
1383 depends on PM && BF60x
1386 Enable PE12(ETH1_PHYINT, PUSH BUTTON) Wake-up
1388 config PM_BFIN_WAKE_PE12_POL
1389 int "Wake-up priority"
1390 depends on PM_BFIN_WAKE_PE12
1393 Wake-Up priority 0(low) 1(high)
1395 config PM_BFIN_WAKE_PG04
1396 bool "Allow Wake-Up from PG04(CAN0_RX)"
1397 depends on PM && BF60x
1400 Enable PG04(CAN0_RX) Wake-up
1402 config PM_BFIN_WAKE_PG04_POL
1403 int "Wake-up priority"
1404 depends on PM_BFIN_WAKE_PG04
1407 Wake-Up priority 0(low) 1(high)
1409 config PM_BFIN_WAKE_PG13
1410 bool "Allow Wake-Up from PG13"
1411 depends on PM && BF60x
1416 config PM_BFIN_WAKE_PG13_POL
1417 int "Wake-up priority"
1418 depends on PM_BFIN_WAKE_PG13
1421 Wake-Up priority 0(low) 1(high)
1423 config PM_BFIN_WAKE_USB
1424 bool "Allow Wake-Up from (USB)"
1425 depends on PM && BF60x
1428 Enable (USB) Wake-up
1430 config PM_BFIN_WAKE_USB_POL
1431 int "Wake-up priority"
1432 depends on PM_BFIN_WAKE_USB
1435 Wake-Up priority 0(low) 1(high)
1439 menu "CPU Frequency scaling"
1441 source "drivers/cpufreq/Kconfig"
1443 config BFIN_CPU_FREQ
1446 select CPU_FREQ_TABLE
1450 bool "CPU Voltage scaling"
1451 depends on EXPERIMENTAL
1455 Say Y here if you want CPU voltage scaling according to the CPU frequency.
1456 This option violates the PLL BYPASS recommendation in the Blackfin Processor
1457 manuals. There is a theoretical risk that during VDDINT transitions
1462 source "net/Kconfig"
1464 source "drivers/Kconfig"
1466 source "drivers/firmware/Kconfig"
1470 source "arch/blackfin/Kconfig.debug"
1472 source "security/Kconfig"
1474 source "crypto/Kconfig"
1476 source "lib/Kconfig"