bool
default y
-config SEMAPHORE_SLEEPERS
- bool
- default y
-
config GENERIC_FIND_NEXT_BIT
bool
default y
bool
default y
-config GENERIC_TIME
- bool
- default n
-
config GENERIC_GPIO
bool
default y
config BF561
bool "BF561"
help
- Not Supported Yet - Work in progress - BF561 Processor Support.
+ BF561 Processor Support.
endchoice
depends on (BF542 || BF544 || BF547 || BF548 || BF549)
default y
-config BFIN_DUAL_CORE
- bool
- depends on (BF561)
- default y
-
-config BFIN_SINGLE_CORE
- bool
- depends on !BFIN_DUAL_CORE
- default y
-
config MEM_GENERIC_BOARD
bool
depends on GENERIC_BOARD
bool
depends on (BFIN533_EZKIT || BFIN561_EZKIT \
|| BFIN533_BLUETECHNIX_CM || BFIN537_BLUETECHNIX_CM \
- || H8606_HVSISTEMAS)
+ || H8606_HVSISTEMAS || BFIN527_BLUETECHNIX_CM)
default y
config MEM_MT48LC32M8A2_75
config MEM_MT48LC32M16A2TG_75
bool
- depends on (BFIN527_EZKIT)
+ depends on (BFIN527_EZKIT || BFIN532_IP0X || BLACKSTAMP || BFIN526_EZBRD)
default y
source "arch/blackfin/mach-bf527/Kconfig"
to the kernel, you may specify one here. As a minimum, you should specify
the memory size and the root device (e.g., mem=8M, root=/dev/nfs).
+config BOOT_LOAD
+ hex "Kernel load address for booting"
+ default "0x1000"
+ range 0x1000 0x20000000
+ help
+ This option allows you to set the load address of the kernel.
+ This can be useful if you are on a board which has a small amount
+ of memory or you wish to reserve some memory at the beginning of
+ the address space.
+
+ Note that you need to keep this value above 4k (0x1000) as this
+ memory region is used to capture NULL pointer references as well
+ as some core kernel functions.
+
+config ROM_BASE
+ hex "Kernel ROM Base"
+ default "0x20040000"
+ range 0x20000000 0x20400000 if !(BF54x || BF561)
+ range 0x20000000 0x30000000 if (BF54x || BF561)
+ help
+
comment "Clock/PLL Setup"
config CLKIN_HZ
- int "Crystal Frequency in Hz"
+ int "Frequency of the crystal on the board in Hz"
default "11059200" if BFIN533_STAMP
default "27000000" if BFIN533_EZKIT
- default "25000000" if (BFIN537_STAMP || BFIN527_EZKIT || H8606_HVSISTEMAS)
+ default "25000000" if (BFIN537_STAMP || BFIN527_EZKIT || H8606_HVSISTEMAS || BLACKSTAMP || BFIN526_EZBRD)
default "30000000" if BFIN561_EZKIT
default "24576000" if PNAV10
+ default "10000000" if BFIN532_IP0X
help
The frequency of CLKIN crystal oscillator on the board in Hz.
+ Warning: This value should match the crystal on the board. Otherwise,
+ peripherals won't work properly.
config BFIN_KERNEL_CLOCK
bool "Re-program Clocks while Kernel boots?"
range 1 64
default "22" if BFIN533_EZKIT
default "45" if BFIN533_STAMP
- default "20" if (BFIN537_STAMP || BFIN527_EZKIT || BFIN548_EZKIT)
+ default "20" if (BFIN537_STAMP || BFIN527_EZKIT || BFIN548_EZKIT || BFIN548_BLUETECHNIX_CM)
default "22" if BFIN533_BLUETECHNIX_CM
- default "20" if BFIN537_BLUETECHNIX_CM
- default "20" if BFIN561_BLUETECHNIX_CM
+ default "20" if (BFIN537_BLUETECHNIX_CM || BFIN527_BLUETECHNIX_CM || BFIN561_BLUETECHNIX_CM)
default "20" if BFIN561_EZKIT
- default "16" if H8606_HVSISTEMAS
+ default "16" if (H8606_HVSISTEMAS || BLACKSTAMP || BFIN526_EZBRD)
help
This controls the frequency of the on-chip PLL. This can be between 1 and 64.
PLL Frequency = (Crystal Frequency) * (this setting)
int "System Clock Divider"
depends on BFIN_KERNEL_CLOCK
range 1 15
- default 5 if BFIN533_EZKIT
- default 5 if BFIN533_STAMP
- default 4 if (BFIN537_STAMP || BFIN527_EZKIT || BFIN548_EZKIT)
- default 5 if BFIN533_BLUETECHNIX_CM
- default 4 if BFIN537_BLUETECHNIX_CM
- default 4 if BFIN561_BLUETECHNIX_CM
- default 5 if BFIN561_EZKIT
- default 3 if H8606_HVSISTEMAS
+ default 5
help
This sets the frequency of the system clock (including SDRAM or DDR).
This can be between 1 and 15
System Clock = (PLL frequency) / (this setting)
+choice
+ prompt "DDR SDRAM Chip Type"
+ depends on BFIN_KERNEL_CLOCK
+ depends on BF54x
+ default MEM_MT46V32M16_5B
+
+config MEM_MT46V32M16_6T
+ bool "MT46V32M16_6T"
+
+config MEM_MT46V32M16_5B
+ bool "MT46V32M16_5B"
+endchoice
+
+config MAX_MEM_SIZE
+ int "Max SDRAM Memory Size in MBytes"
+ depends on !MPU
+ default 512
+ help
+ This is the max memory size that the kernel will create CPLB
+ tables for. Your system will not be able to handle any more.
+
#
# Max & Min Speeds for various Chips
#
source kernel/Kconfig.hz
-comment "Memory Setup"
-
-config MEM_SIZE
- int "SDRAM Memory Size in MBytes"
- default 32 if BFIN533_EZKIT
- default 64 if BFIN527_EZKIT
- default 64 if BFIN537_STAMP
- default 64 if BFIN548_EZKIT
- default 64 if BFIN561_EZKIT
- default 128 if BFIN533_STAMP
- default 64 if PNAV10
- default 32 if H8606_HVSISTEMAS
-
-config MEM_ADD_WIDTH
- int "SDRAM Memory Address Width"
- depends on (!BF54x)
- default 9 if BFIN533_EZKIT
- default 9 if BFIN561_EZKIT
- default 9 if H8606_HVSISTEMAS
- default 10 if BFIN527_EZKIT
- default 10 if BFIN537_STAMP
- default 11 if BFIN533_STAMP
- default 10 if PNAV10
-
-
-choice
- prompt "DDR SDRAM Chip Type"
- depends on BFIN548_EZKIT
- default MEM_MT46V32M16_5B
-
-config MEM_MT46V32M16_6T
- bool "MT46V32M16_6T"
+config GENERIC_TIME
+ bool "Generic time"
+ default y
-config MEM_MT46V32M16_5B
- bool "MT46V32M16_5B"
-endchoice
+config GENERIC_CLOCKEVENTS
+ bool "Generic clock events"
+ depends on GENERIC_TIME
+ default y
-config ENET_FLASH_PIN
- int "PF port/pin used for flash and ethernet sharing"
- depends on (BFIN533_STAMP)
- default 0
+config CYCLES_CLOCKSOURCE
+ bool "Use 'CYCLES' as a clocksource (EXPERIMENTAL)"
+ depends on EXPERIMENTAL
+ depends on GENERIC_CLOCKEVENTS
+ depends on !BFIN_SCRATCH_REG_CYCLES
+ default n
help
- PF port/pin used for flash and ethernet sharing to allow other PF
- pins to be used on other platforms without having to touch common
- code.
- For example: PF0 --> 0,PF1 --> 1,PF2 --> 2, etc.
+ If you say Y here, you will enable support for using the 'cycles'
+ registers as a clock source. Doing so means you will be unable to
+ safely write to the 'cycles' register during runtime. You will
+ still be able to read it (such as for performance monitoring), but
+ writing the registers will most likely crash the kernel.
-config BOOT_LOAD
- hex "Kernel load address for booting"
- default "0x1000"
- range 0x1000 0x20000000
- help
- This option allows you to set the load address of the kernel.
- This can be useful if you are on a board which has a small amount
- of memory or you wish to reserve some memory at the beginning of
- the address space.
+source kernel/time/Kconfig
- Note that you need to keep this value above 4k (0x1000) as this
- memory region is used to capture NULL pointer references as well
- as some core kernel functions.
+comment "Misc"
choice
prompt "Blackfin Exception Scratch Register"
If enabled, the CPLB Switch Tables are linked
into L1 data memory. (less latency)
+config APP_STACK_L1
+ bool "Support locating application stack in L1 Scratch Memory"
+ default y
+ help
+ If enabled the application stack can be located in L1
+ scratch memory (less latency).
+
+ Currently only works with FLAT binaries.
+
+comment "Speed Optimizations"
+config BFIN_INS_LOWOVERHEAD
+ bool "ins[bwl] low overhead, higher interrupt latency"
+ default y
+ help
+ Reads on the Blackfin are speculative. In Blackfin terms, this means
+ they can be interrupted at any time (even after they have been issued
+ on to the external bus), and re-issued after the interrupt occurs.
+ For memory - this is not a big deal, since memory does not change if
+ it sees a read.
+
+ If a FIFO is sitting on the end of the read, it will see two reads,
+ when the core only sees one since the FIFO receives both the read
+ which is cancelled (and not delivered to the core) and the one which
+ is re-issued (which is delivered to the core).
+
+ To solve this, interrupts are turned off before reads occur to
+ I/O space. This option controls which the overhead/latency of
+ controlling interrupts during this time
+ "n" turns interrupts off every read
+ (higher overhead, but lower interrupt latency)
+ "y" turns interrupts off every loop
+ (low overhead, but longer interrupt latency)
+
+ default behavior is to leave this set to on (type "Y"). If you are experiencing
+ interrupt latency issues, it is safe and OK to turn this off.
+
endmenu
source "mm/Kconfig"
-config LARGE_ALLOCS
- bool "Allow allocating large blocks (> 1MB) of memory"
- help
- Allow the slab memory allocator to keep chains for very large
- memory sizes - upto 32MB. You may need this if your system has
- a lot of RAM, and you need to able to allocate very large
- contiguous chunks. If unsure, say N.
-
config BFIN_GPTIMERS
tristate "Enable Blackfin General Purpose Timers API"
default n
prompt "Uncached SDRAM region"
default DMA_UNCACHED_1M
depends on BFIN_DMA_5XX
+config DMA_UNCACHED_4M
+ bool "Enable 4M DMA region"
config DMA_UNCACHED_2M
bool "Enable 2M DMA region"
config DMA_UNCACHED_1M
endchoice
-config L1_MAX_PIECE
- int "Set the max L1 SRAM pieces"
- default 16
- help
- Set the max memory pieces for the L1 SRAM allocation algorithm.
- Min value is 16. Max value is 1024.
-
-
config MPU
bool "Enable the memory protection unit (EXPERIMENTAL)"
default n
config BANK_1
hex "Bank 1"
default 0x7BB0
+ default 0x5558 if BF54x
config BANK_2
hex "Bank 2"
config PCI
bool "PCI support"
+ depends on BROKEN
help
Support for PCI bus.
plugged into slots found on all modern laptop computers. Another
example, used on modern desktops as well as laptops, is USB.
- Enable HOTPLUG and KMOD, and build a modular kernel. Get agent
- software (at <http://linux-hotplug.sourceforge.net/>) and install it.
+ Enable HOTPLUG and build a modular kernel. Get agent software
+ (from <http://linux-hotplug.sourceforge.net/>) and install it.
Then your kernel will automatically call out to a user mode "policy
agent" (/sbin/hotplug) to load modules and set up software needed
to use devices as you hotplug them.
depends on !SMP
choice
- prompt "Default Power Saving Mode"
+ prompt "Standby Power Saving Mode"
depends on PM
default PM_BFIN_SLEEP_DEEPER
config PM_BFIN_SLEEP_DEEPER
normal during Sleep Deeper, due to the reduced SCLK frequency.
When in the sleep mode, system DMA access to L1 memory is not supported.
+ If unsure, select "Sleep Deeper".
+
config PM_BFIN_SLEEP
bool "Sleep"
help
dissipation by disabling the clock to the processor core (CCLK).
The PLL and system clock (SCLK), however, continue to operate in
this mode. Typically an external event or RTC activity will wake
- up the processor. When in the sleep mode,
- system DMA access to L1 memory is not supported.
+ up the processor. When in the sleep mode, system DMA access to L1
+ memory is not supported.
+
+ If unsure, select "Sleep Deeper".
endchoice
config PM_WAKEUP_BY_GPIO
- bool "Cause Wakeup Event by GPIO"
+ bool "Allow Wakeup from Standby by GPIO"
config PM_WAKEUP_GPIO_NUMBER
- int "Wakeup GPIO number"
+ int "GPIO number"
range 0 47
depends on PM_WAKEUP_BY_GPIO
default 2 if BFIN537_STAMP
bool "Both EDGE"
endchoice
-endmenu
+comment "Possible Suspend Mem / Hibernate Wake-Up Sources"
+ depends on PM
+
+config PM_BFIN_WAKE_PH6
+ bool "Allow Wake-Up from on-chip PHY or PH6 GP"
+ depends on PM && (BF52x || BF534 || BF536 || BF537)
+ default n
+ help
+ Enable PHY and PH6 GP Wake-Up (Voltage Regulator Power-Up)
-if (BF537 || BF533 || BF54x)
+config PM_BFIN_WAKE_GP
+ bool "Allow Wake-Up from GPIOs"
+ depends on PM && BF54x
+ default n
+ help
+ Enable General-Purpose Wake-Up (Voltage Regulator Power-Up)
+endmenu
menu "CPU Frequency scaling"
source "drivers/cpufreq/Kconfig"
-config CPU_FREQ
- bool
+config CPU_VOLTAGE
+ bool "CPU Voltage scaling"
+ depends on EXPERIMENTAL
+ depends on CPU_FREQ
default n
help
- If you want to enable this option, you should select the
- DPMC driver from Character Devices.
-endmenu
+ Say Y here if you want CPU voltage scaling according to the CPU frequency.
+ This option violates the PLL BYPASS recommendation in the Blackfin Processor
+ manuals. There is a theoretical risk that during VDDINT transitions
+ the PLL may unlock.
-endif
+endmenu
source "net/Kconfig"
Code Review / linux-2.6.git / blobdiff