2 # For a description of the syntax of this configuration file,
3 # see Documentation/kbuild/kconfig-language.txt.
6 mainmenu "Blackfin Kernel Configuration"
18 config RWSEM_GENERIC_SPINLOCK
21 config RWSEM_XCHGADD_ALGORITHM
26 select HAVE_FUNCTION_GRAPH_TRACER
27 select HAVE_FUNCTION_TRACER
29 select HAVE_KERNEL_GZIP
30 select HAVE_KERNEL_BZIP2
31 select HAVE_KERNEL_LZMA
33 select ARCH_WANT_OPTIONAL_GPIOLIB
45 config GENERIC_FIND_NEXT_BIT
48 config GENERIC_HARDIRQS
51 config GENERIC_IRQ_PROBE
54 config GENERIC_HARDIRQS_NO__DO_IRQ
60 config FORCE_MAX_ZONEORDER
64 config GENERIC_CALIBRATE_DELAY
67 config LOCKDEP_SUPPORT
70 config STACKTRACE_SUPPORT
73 config TRACE_IRQFLAGS_SUPPORT
78 source "kernel/Kconfig.preempt"
80 source "kernel/Kconfig.freezer"
82 menu "Blackfin Processor Options"
84 comment "Processor and Board Settings"
93 BF512 Processor Support.
98 BF514 Processor Support.
103 BF516 Processor Support.
108 BF518 Processor Support.
113 BF522 Processor Support.
118 BF523 Processor Support.
123 BF524 Processor Support.
128 BF525 Processor Support.
133 BF526 Processor Support.
138 BF527 Processor Support.
143 BF531 Processor Support.
148 BF532 Processor Support.
153 BF533 Processor Support.
158 BF534 Processor Support.
163 BF536 Processor Support.
168 BF537 Processor Support.
173 BF538 Processor Support.
178 BF539 Processor Support.
183 BF542 Processor Support.
188 BF542 Processor Support.
193 BF544 Processor Support.
198 BF544 Processor Support.
203 BF547 Processor Support.
208 BF547 Processor Support.
213 BF548 Processor Support.
218 BF548 Processor Support.
223 BF549 Processor Support.
228 BF549 Processor Support.
233 BF561 Processor Support.
239 select TICKSOURCE_CORETMR
240 bool "Symmetric multi-processing support"
242 This enables support for systems with more than one CPU,
243 like the dual core BF561. If you have a system with only one
244 CPU, say N. If you have a system with more than one CPU, say Y.
246 If you don't know what to do here, say N.
254 bool "Support for hot-pluggable CPUs"
255 depends on SMP && HOTPLUG
263 config HAVE_LEGACY_PER_CPU_AREA
269 default 0 if (BF51x || BF52x || (BF54x && !BF54xM))
270 default 2 if (BF537 || BF536 || BF534)
271 default 3 if (BF561 || BF533 || BF532 || BF531 || BF54xM)
272 default 4 if (BF538 || BF539)
276 default 2 if (BF51x || BF52x || (BF54x && !BF54xM))
277 default 3 if (BF537 || BF536 || BF534 || BF54xM)
278 default 5 if (BF561 || BF538 || BF539)
279 default 6 if (BF533 || BF532 || BF531)
283 default BF_REV_0_0 if (BF51x || BF52x)
284 default BF_REV_0_2 if (BF534 || BF536 || BF537 || (BF54x && !BF54xM))
285 default BF_REV_0_3 if (BF531 || BF532 || BF533 || BF54xM || BF561)
289 depends on (BF51x || BF52x || (BF54x && !BF54xM))
293 depends on (BF51x || BF52x || (BF54x && !BF54xM))
297 depends on (BF52x || BF537 || BF536 || BF534 || (BF54x && !BF54xM))
301 depends on (BF54xM || BF561 || BF537 || BF536 || BF534 || BF533 || BF532 || BF531)
305 depends on (BF561 || BF533 || BF532 || BF531 || BF538 || BF539)
309 depends on (BF561 || BF533 || BF532 || BF531 || BF538 || BF539)
313 depends on (BF533 || BF532 || BF531)
325 depends on (BF531 || BF532 || BF533 || BF534 || BF536 || BF537)
328 config MEM_GENERIC_BOARD
330 depends on GENERIC_BOARD
333 config MEM_MT48LC64M4A2FB_7E
335 depends on (BFIN533_STAMP)
338 config MEM_MT48LC16M16A2TG_75
340 depends on (BFIN533_EZKIT || BFIN561_EZKIT \
341 || BFIN533_BLUETECHNIX_CM || BFIN537_BLUETECHNIX_CM_E \
342 || BFIN537_BLUETECHNIX_CM_U || H8606_HVSISTEMAS \
343 || BFIN527_BLUETECHNIX_CM)
346 config MEM_MT48LC32M8A2_75
348 depends on (BFIN537_STAMP || PNAV10 || BFIN538_EZKIT)
351 config MEM_MT48LC8M32B2B5_7
353 depends on (BFIN561_BLUETECHNIX_CM)
356 config MEM_MT48LC32M16A2TG_75
358 depends on (BFIN527_EZKIT || BFIN527_EZKIT_V2 || BFIN532_IP0X || BLACKSTAMP)
361 config MEM_MT48LC32M8A2_75
363 depends on (BFIN518F_EZBRD)
366 config MEM_MT48H32M16LFCJ_75
368 depends on (BFIN526_EZBRD)
371 source "arch/blackfin/mach-bf518/Kconfig"
372 source "arch/blackfin/mach-bf527/Kconfig"
373 source "arch/blackfin/mach-bf533/Kconfig"
374 source "arch/blackfin/mach-bf561/Kconfig"
375 source "arch/blackfin/mach-bf537/Kconfig"
376 source "arch/blackfin/mach-bf538/Kconfig"
377 source "arch/blackfin/mach-bf548/Kconfig"
379 menu "Board customizations"
382 bool "Default bootloader kernel arguments"
385 string "Initial kernel command string"
386 depends on CMDLINE_BOOL
387 default "console=ttyBF0,57600"
389 If you don't have a boot loader capable of passing a command line string
390 to the kernel, you may specify one here. As a minimum, you should specify
391 the memory size and the root device (e.g., mem=8M, root=/dev/nfs).
394 hex "Kernel load address for booting"
396 range 0x1000 0x20000000
398 This option allows you to set the load address of the kernel.
399 This can be useful if you are on a board which has a small amount
400 of memory or you wish to reserve some memory at the beginning of
403 Note that you need to keep this value above 4k (0x1000) as this
404 memory region is used to capture NULL pointer references as well
405 as some core kernel functions.
408 hex "Kernel ROM Base"
411 range 0x20000000 0x20400000 if !(BF54x || BF561)
412 range 0x20000000 0x30000000 if (BF54x || BF561)
415 comment "Clock/PLL Setup"
418 int "Frequency of the crystal on the board in Hz"
419 default "10000000" if BFIN532_IP0X
420 default "11059200" if BFIN533_STAMP
421 default "24576000" if PNAV10
422 default "25000000" # most people use this
423 default "27000000" if BFIN533_EZKIT
424 default "30000000" if BFIN561_EZKIT
426 The frequency of CLKIN crystal oscillator on the board in Hz.
427 Warning: This value should match the crystal on the board. Otherwise,
428 peripherals won't work properly.
430 config BFIN_KERNEL_CLOCK
431 bool "Re-program Clocks while Kernel boots?"
434 This option decides if kernel clocks are re-programed from the
435 bootloader settings. If the clocks are not set, the SDRAM settings
436 are also not changed, and the Bootloader does 100% of the hardware
441 depends on BFIN_KERNEL_CLOCK
446 depends on BFIN_KERNEL_CLOCK && (! PLL_BYPASS)
449 If this is set the clock will be divided by 2, before it goes to the PLL.
453 depends on BFIN_KERNEL_CLOCK && (! PLL_BYPASS)
455 default "22" if BFIN533_EZKIT
456 default "45" if BFIN533_STAMP
457 default "20" if (BFIN537_STAMP || BFIN527_EZKIT || BFIN527_EZKIT_V2 || BFIN548_EZKIT || BFIN548_BLUETECHNIX_CM || BFIN538_EZKIT)
458 default "22" if BFIN533_BLUETECHNIX_CM
459 default "20" if (BFIN537_BLUETECHNIX_CM_E || BFIN537_BLUETECHNIX_CM_U || BFIN527_BLUETECHNIX_CM || BFIN561_BLUETECHNIX_CM)
460 default "20" if BFIN561_EZKIT
461 default "16" if (H8606_HVSISTEMAS || BLACKSTAMP || BFIN526_EZBRD || BFIN518F_EZBRD)
463 This controls the frequency of the on-chip PLL. This can be between 1 and 64.
464 PLL Frequency = (Crystal Frequency) * (this setting)
467 prompt "Core Clock Divider"
468 depends on BFIN_KERNEL_CLOCK
471 This sets the frequency of the core. It can be 1, 2, 4 or 8
472 Core Frequency = (PLL frequency) / (this setting)
488 int "System Clock Divider"
489 depends on BFIN_KERNEL_CLOCK
493 This sets the frequency of the system clock (including SDRAM or DDR).
494 This can be between 1 and 15
495 System Clock = (PLL frequency) / (this setting)
498 prompt "DDR SDRAM Chip Type"
499 depends on BFIN_KERNEL_CLOCK
501 default MEM_MT46V32M16_5B
503 config MEM_MT46V32M16_6T
506 config MEM_MT46V32M16_5B
511 prompt "DDR/SDRAM Timing"
512 depends on BFIN_KERNEL_CLOCK
513 default BFIN_KERNEL_CLOCK_MEMINIT_CALC
515 This option allows you to specify Blackfin SDRAM/DDR Timing parameters
516 The calculated SDRAM timing parameters may not be 100%
517 accurate - This option is therefore marked experimental.
519 config BFIN_KERNEL_CLOCK_MEMINIT_CALC
520 bool "Calculate Timings (EXPERIMENTAL)"
521 depends on EXPERIMENTAL
523 config BFIN_KERNEL_CLOCK_MEMINIT_SPEC
524 bool "Provide accurate Timings based on target SCLK"
526 Please consult the Blackfin Hardware Reference Manuals as well
527 as the memory device datasheet.
528 http://docs.blackfin.uclinux.org/doku.php?id=bfin:sdram
531 menu "Memory Init Control"
532 depends on BFIN_KERNEL_CLOCK_MEMINIT_SPEC
549 config MEM_EBIU_DDRQUE
566 # Max & Min Speeds for various Chips
570 default 400000000 if BF512
571 default 400000000 if BF514
572 default 400000000 if BF516
573 default 400000000 if BF518
574 default 400000000 if BF522
575 default 600000000 if BF523
576 default 400000000 if BF524
577 default 600000000 if BF525
578 default 400000000 if BF526
579 default 600000000 if BF527
580 default 400000000 if BF531
581 default 400000000 if BF532
582 default 750000000 if BF533
583 default 500000000 if BF534
584 default 400000000 if BF536
585 default 600000000 if BF537
586 default 533333333 if BF538
587 default 533333333 if BF539
588 default 600000000 if BF542
589 default 533333333 if BF544
590 default 600000000 if BF547
591 default 600000000 if BF548
592 default 533333333 if BF549
593 default 600000000 if BF561
607 comment "Kernel Timer/Scheduler"
609 source kernel/Kconfig.hz
614 config GENERIC_CLOCKEVENTS
615 bool "Generic clock events"
618 menu "Clock event device"
619 depends on GENERIC_CLOCKEVENTS
620 config TICKSOURCE_GPTMR0
625 config TICKSOURCE_CORETMR
631 depends on GENERIC_CLOCKEVENTS
632 config CYCLES_CLOCKSOURCE
635 depends on !BFIN_SCRATCH_REG_CYCLES
638 If you say Y here, you will enable support for using the 'cycles'
639 registers as a clock source. Doing so means you will be unable to
640 safely write to the 'cycles' register during runtime. You will
641 still be able to read it (such as for performance monitoring), but
642 writing the registers will most likely crash the kernel.
644 config GPTMR0_CLOCKSOURCE
647 depends on !TICKSOURCE_GPTMR0
650 config ARCH_USES_GETTIMEOFFSET
651 depends on !GENERIC_CLOCKEVENTS
654 source kernel/time/Kconfig
659 prompt "Blackfin Exception Scratch Register"
660 default BFIN_SCRATCH_REG_RETN
662 Select the resource to reserve for the Exception handler:
663 - RETN: Non-Maskable Interrupt (NMI)
664 - RETE: Exception Return (JTAG/ICE)
665 - CYCLES: Performance counter
667 If you are unsure, please select "RETN".
669 config BFIN_SCRATCH_REG_RETN
672 Use the RETN register in the Blackfin exception handler
673 as a stack scratch register. This means you cannot
674 safely use NMI on the Blackfin while running Linux, but
675 you can debug the system with a JTAG ICE and use the
676 CYCLES performance registers.
678 If you are unsure, please select "RETN".
680 config BFIN_SCRATCH_REG_RETE
683 Use the RETE register in the Blackfin exception handler
684 as a stack scratch register. This means you cannot
685 safely use a JTAG ICE while debugging a Blackfin board,
686 but you can safely use the CYCLES performance registers
689 If you are unsure, please select "RETN".
691 config BFIN_SCRATCH_REG_CYCLES
694 Use the CYCLES register in the Blackfin exception handler
695 as a stack scratch register. This means you cannot
696 safely use the CYCLES performance registers on a Blackfin
697 board at anytime, but you can debug the system with a JTAG
700 If you are unsure, please select "RETN".
707 menu "Blackfin Kernel Optimizations"
710 comment "Memory Optimizations"
713 bool "Locate interrupt entry code in L1 Memory"
716 If enabled, interrupt entry code (STORE/RESTORE CONTEXT) is linked
717 into L1 instruction memory. (less latency)
719 config EXCPT_IRQ_SYSC_L1
720 bool "Locate entire ASM lowlevel exception / interrupt - Syscall and CPLB handler code in L1 Memory"
723 If enabled, the entire ASM lowlevel exception and interrupt entry code
724 (STORE/RESTORE CONTEXT) is linked into L1 instruction memory.
728 bool "Locate frequently called do_irq dispatcher function in L1 Memory"
731 If enabled, the frequently called do_irq dispatcher function is linked
732 into L1 instruction memory. (less latency)
734 config CORE_TIMER_IRQ_L1
735 bool "Locate frequently called timer_interrupt() function in L1 Memory"
738 If enabled, the frequently called timer_interrupt() function is linked
739 into L1 instruction memory. (less latency)
742 bool "Locate frequently idle function in L1 Memory"
745 If enabled, the frequently called idle function is linked
746 into L1 instruction memory. (less latency)
749 bool "Locate kernel schedule function in L1 Memory"
752 If enabled, the frequently called kernel schedule is linked
753 into L1 instruction memory. (less latency)
755 config ARITHMETIC_OPS_L1
756 bool "Locate kernel owned arithmetic functions in L1 Memory"
759 If enabled, arithmetic functions are linked
760 into L1 instruction memory. (less latency)
763 bool "Locate access_ok function in L1 Memory"
766 If enabled, the access_ok function is linked
767 into L1 instruction memory. (less latency)
770 bool "Locate memset function in L1 Memory"
773 If enabled, the memset function is linked
774 into L1 instruction memory. (less latency)
777 bool "Locate memcpy function in L1 Memory"
780 If enabled, the memcpy function is linked
781 into L1 instruction memory. (less latency)
783 config SYS_BFIN_SPINLOCK_L1
784 bool "Locate sys_bfin_spinlock function in L1 Memory"
787 If enabled, sys_bfin_spinlock function is linked
788 into L1 instruction memory. (less latency)
790 config IP_CHECKSUM_L1
791 bool "Locate IP Checksum function in L1 Memory"
794 If enabled, the IP Checksum function is linked
795 into L1 instruction memory. (less latency)
797 config CACHELINE_ALIGNED_L1
798 bool "Locate cacheline_aligned data to L1 Data Memory"
803 If enabled, cacheline_aligned data is linked
804 into L1 data memory. (less latency)
806 config SYSCALL_TAB_L1
807 bool "Locate Syscall Table L1 Data Memory"
811 If enabled, the Syscall LUT is linked
812 into L1 data memory. (less latency)
814 config CPLB_SWITCH_TAB_L1
815 bool "Locate CPLB Switch Tables L1 Data Memory"
819 If enabled, the CPLB Switch Tables are linked
820 into L1 data memory. (less latency)
823 bool "Support locating application stack in L1 Scratch Memory"
826 If enabled the application stack can be located in L1
827 scratch memory (less latency).
829 Currently only works with FLAT binaries.
831 config EXCEPTION_L1_SCRATCH
832 bool "Locate exception stack in L1 Scratch Memory"
834 depends on !APP_STACK_L1
836 Whenever an exception occurs, use the L1 Scratch memory for
837 stack storage. You cannot place the stacks of FLAT binaries
838 in L1 when using this option.
840 If you don't use L1 Scratch, then you should say Y here.
842 comment "Speed Optimizations"
843 config BFIN_INS_LOWOVERHEAD
844 bool "ins[bwl] low overhead, higher interrupt latency"
847 Reads on the Blackfin are speculative. In Blackfin terms, this means
848 they can be interrupted at any time (even after they have been issued
849 on to the external bus), and re-issued after the interrupt occurs.
850 For memory - this is not a big deal, since memory does not change if
853 If a FIFO is sitting on the end of the read, it will see two reads,
854 when the core only sees one since the FIFO receives both the read
855 which is cancelled (and not delivered to the core) and the one which
856 is re-issued (which is delivered to the core).
858 To solve this, interrupts are turned off before reads occur to
859 I/O space. This option controls which the overhead/latency of
860 controlling interrupts during this time
861 "n" turns interrupts off every read
862 (higher overhead, but lower interrupt latency)
863 "y" turns interrupts off every loop
864 (low overhead, but longer interrupt latency)
866 default behavior is to leave this set to on (type "Y"). If you are experiencing
867 interrupt latency issues, it is safe and OK to turn this off.
872 prompt "Kernel executes from"
874 Choose the memory type that the kernel will be running in.
879 The kernel will be resident in RAM when running.
884 The kernel will be resident in FLASH/ROM when running.
891 tristate "Enable Blackfin General Purpose Timers API"
894 Enable support for the General Purpose Timers API. If you
897 To compile this driver as a module, choose M here: the module
898 will be called gptimers.
901 prompt "Uncached DMA region"
902 default DMA_UNCACHED_1M
903 config DMA_UNCACHED_4M
904 bool "Enable 4M DMA region"
905 config DMA_UNCACHED_2M
906 bool "Enable 2M DMA region"
907 config DMA_UNCACHED_1M
908 bool "Enable 1M DMA region"
909 config DMA_UNCACHED_512K
910 bool "Enable 512K DMA region"
911 config DMA_UNCACHED_256K
912 bool "Enable 256K DMA region"
913 config DMA_UNCACHED_128K
914 bool "Enable 128K DMA region"
915 config DMA_UNCACHED_NONE
916 bool "Disable DMA region"
920 comment "Cache Support"
925 config BFIN_EXTMEM_ICACHEABLE
926 bool "Enable ICACHE for external memory"
927 depends on BFIN_ICACHE
929 config BFIN_L2_ICACHEABLE
930 bool "Enable ICACHE for L2 SRAM"
931 depends on BFIN_ICACHE
932 depends on BF54x || BF561
938 config BFIN_DCACHE_BANKA
939 bool "Enable only 16k BankA DCACHE - BankB is SRAM"
940 depends on BFIN_DCACHE && !BF531
942 config BFIN_EXTMEM_DCACHEABLE
943 bool "Enable DCACHE for external memory"
944 depends on BFIN_DCACHE
947 prompt "External memory DCACHE policy"
948 depends on BFIN_EXTMEM_DCACHEABLE
949 default BFIN_EXTMEM_WRITEBACK if !SMP
950 default BFIN_EXTMEM_WRITETHROUGH if SMP
951 config BFIN_EXTMEM_WRITEBACK
956 Cached data will be written back to SDRAM only when needed.
957 This can give a nice increase in performance, but beware of
958 broken drivers that do not properly invalidate/flush their
961 Write Through Policy:
962 Cached data will always be written back to SDRAM when the
963 cache is updated. This is a completely safe setting, but
964 performance is worse than Write Back.
966 If you are unsure of the options and you want to be safe,
967 then go with Write Through.
969 config BFIN_EXTMEM_WRITETHROUGH
973 Cached data will be written back to SDRAM only when needed.
974 This can give a nice increase in performance, but beware of
975 broken drivers that do not properly invalidate/flush their
978 Write Through Policy:
979 Cached data will always be written back to SDRAM when the
980 cache is updated. This is a completely safe setting, but
981 performance is worse than Write Back.
983 If you are unsure of the options and you want to be safe,
984 then go with Write Through.
988 config BFIN_L2_DCACHEABLE
989 bool "Enable DCACHE for L2 SRAM"
990 depends on BFIN_DCACHE
991 depends on (BF54x || BF561) && !SMP
994 prompt "L2 SRAM DCACHE policy"
995 depends on BFIN_L2_DCACHEABLE
996 default BFIN_L2_WRITEBACK
997 config BFIN_L2_WRITEBACK
1000 config BFIN_L2_WRITETHROUGH
1001 bool "Write through"
1005 comment "Memory Protection Unit"
1007 bool "Enable the memory protection unit (EXPERIMENTAL)"
1010 Use the processor's MPU to protect applications from accessing
1011 memory they do not own. This comes at a performance penalty
1012 and is recommended only for debugging.
1014 comment "Asynchronous Memory Configuration"
1016 menu "EBIU_AMGCTL Global Control"
1018 bool "Enable CLKOUT"
1022 bool "DMA has priority over core for ext. accesses"
1027 bool "Bank 0 16 bit packing enable"
1032 bool "Bank 1 16 bit packing enable"
1037 bool "Bank 2 16 bit packing enable"
1042 bool "Bank 3 16 bit packing enable"
1046 prompt "Enable Asynchronous Memory Banks"
1050 bool "Disable All Banks"
1053 bool "Enable Bank 0"
1055 config C_AMBEN_B0_B1
1056 bool "Enable Bank 0 & 1"
1058 config C_AMBEN_B0_B1_B2
1059 bool "Enable Bank 0 & 1 & 2"
1062 bool "Enable All Banks"
1066 menu "EBIU_AMBCTL Control"
1068 hex "Bank 0 (AMBCTL0.L)"
1071 These are the low 16 bits of the EBIU_AMBCTL0 MMR which are
1072 used to control the Asynchronous Memory Bank 0 settings.
1075 hex "Bank 1 (AMBCTL0.H)"
1077 default 0x5558 if BF54x
1079 These are the high 16 bits of the EBIU_AMBCTL0 MMR which are
1080 used to control the Asynchronous Memory Bank 1 settings.
1083 hex "Bank 2 (AMBCTL1.L)"
1086 These are the low 16 bits of the EBIU_AMBCTL1 MMR which are
1087 used to control the Asynchronous Memory Bank 2 settings.
1090 hex "Bank 3 (AMBCTL1.H)"
1093 These are the high 16 bits of the EBIU_AMBCTL1 MMR which are
1094 used to control the Asynchronous Memory Bank 3 settings.
1098 config EBIU_MBSCTLVAL
1099 hex "EBIU Bank Select Control Register"
1104 hex "Flash Memory Mode Control Register"
1109 hex "Flash Memory Bank Control Register"
1114 #############################################################################
1115 menu "Bus options (PCI, PCMCIA, EISA, MCA, ISA)"
1121 Support for PCI bus.
1123 source "drivers/pci/Kconfig"
1125 source "drivers/pcmcia/Kconfig"
1127 source "drivers/pci/hotplug/Kconfig"
1131 menu "Executable file formats"
1133 source "fs/Kconfig.binfmt"
1137 menu "Power management options"
1139 source "kernel/power/Kconfig"
1141 config ARCH_SUSPEND_POSSIBLE
1145 prompt "Standby Power Saving Mode"
1147 default PM_BFIN_SLEEP_DEEPER
1148 config PM_BFIN_SLEEP_DEEPER
1151 Sleep "Deeper" Mode (High Power Savings) - This mode reduces dynamic
1152 power dissipation by disabling the clock to the processor core (CCLK).
1153 Furthermore, Standby sets the internal power supply voltage (VDDINT)
1154 to 0.85 V to provide the greatest power savings, while preserving the
1156 The PLL and system clock (SCLK) continue to operate at a very low
1157 frequency of about 3.3 MHz. To preserve data integrity in the SDRAM,
1158 the SDRAM is put into Self Refresh Mode. Typically an external event
1159 such as GPIO interrupt or RTC activity wakes up the processor.
1160 Various Peripherals such as UART, SPORT, PPI may not function as
1161 normal during Sleep Deeper, due to the reduced SCLK frequency.
1162 When in the sleep mode, system DMA access to L1 memory is not supported.
1164 If unsure, select "Sleep Deeper".
1166 config PM_BFIN_SLEEP
1169 Sleep Mode (High Power Savings) - The sleep mode reduces power
1170 dissipation by disabling the clock to the processor core (CCLK).
1171 The PLL and system clock (SCLK), however, continue to operate in
1172 this mode. Typically an external event or RTC activity will wake
1173 up the processor. When in the sleep mode, system DMA access to L1
1174 memory is not supported.
1176 If unsure, select "Sleep Deeper".
1179 config PM_WAKEUP_BY_GPIO
1180 bool "Allow Wakeup from Standby by GPIO"
1181 depends on PM && !BF54x
1183 config PM_WAKEUP_GPIO_NUMBER
1186 depends on PM_WAKEUP_BY_GPIO
1190 prompt "GPIO Polarity"
1191 depends on PM_WAKEUP_BY_GPIO
1192 default PM_WAKEUP_GPIO_POLAR_H
1193 config PM_WAKEUP_GPIO_POLAR_H
1195 config PM_WAKEUP_GPIO_POLAR_L
1197 config PM_WAKEUP_GPIO_POLAR_EDGE_F
1199 config PM_WAKEUP_GPIO_POLAR_EDGE_R
1201 config PM_WAKEUP_GPIO_POLAR_EDGE_B
1205 comment "Possible Suspend Mem / Hibernate Wake-Up Sources"
1208 config PM_BFIN_WAKE_PH6
1209 bool "Allow Wake-Up from on-chip PHY or PH6 GP"
1210 depends on PM && (BF51x || BF52x || BF534 || BF536 || BF537)
1213 Enable PHY and PH6 GP Wake-Up (Voltage Regulator Power-Up)
1215 config PM_BFIN_WAKE_GP
1216 bool "Allow Wake-Up from GPIOs"
1217 depends on PM && BF54x
1220 Enable General-Purpose Wake-Up (Voltage Regulator Power-Up)
1221 (all processors, except ADSP-BF549). This option sets
1222 the general-purpose wake-up enable (GPWE) control bit to enable
1223 wake-up upon detection of an active low signal on the /GPW (PH7) pin.
1224 On ADSP-BF549 this option enables the the same functionality on the
1225 /MRXON pin also PH7.
1229 menu "CPU Frequency scaling"
1232 source "drivers/cpufreq/Kconfig"
1234 config BFIN_CPU_FREQ
1237 select CPU_FREQ_TABLE
1241 bool "CPU Voltage scaling"
1242 depends on EXPERIMENTAL
1246 Say Y here if you want CPU voltage scaling according to the CPU frequency.
1247 This option violates the PLL BYPASS recommendation in the Blackfin Processor
1248 manuals. There is a theoretical risk that during VDDINT transitions
1253 source "net/Kconfig"
1255 source "drivers/Kconfig"
1257 source "drivers/firmware/Kconfig"
1261 source "arch/blackfin/Kconfig.debug"
1263 source "security/Kconfig"
1265 source "crypto/Kconfig"
1267 source "lib/Kconfig"