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>
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index 17f9469..cdce8cc 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -476,15 +476,16 @@
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)