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Blackfin arch: update BOOT_LOAD 

update BOOT_LOAD help to reflect current state of the first 4k of
our address space as well as add a memory range option to prevent
invalid values

Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
This commit is contained in:
Mike Frysinger 2007-08-05 14:06:16 +08:00 committed by Bryan Wu
parent be7b0d3711
commit 2d8f161fe3
1 changed files with 4 additions and 3 deletions
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7
arch/blackfin/Kconfig
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@ -476,15 +476,16 @@ config ENET_FLASH_PIN
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 generally want to keep this value at or above 4k
(0x1000) as this will allow the kernel to capture NULL pointer
references.
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 "LED Status Indicators"
depends on (BFIN533_STAMP || BFIN533_BLUETECHNIX_CM)