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libfdt: Introduce new ARCH_FIXUP_FDT option

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Add new Kconfig option to disable arch_fixup_fdt() calls for cases where
U-Boot shouldn't update memory setup in DTB file.
One example of usage of this option is to boot OS with different memory
setup than U-Boot use.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Michal Simek
2016-07-28 09:06:41 +02:00
committed by Simon Glass
parent 26fb8db0f4
commit e2f88dfd2d
5 changed files with 17 additions and 5 deletions
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9
Kconfig
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@@ -342,6 +342,15 @@ config SYS_CLK_FREQ
help
TODO: Move CONFIG_SYS_CLK_FREQ for all the architecture
config ARCH_FIXUP_FDT
bool "Enable arch_fixup_fdt() call"
depends on ARM || MIPS
default y
help
Enable FDT memory map syncup before OS boot. This feature can be
used for booting OS with different memory setup where the part of
the memory location should be used for different purpose.
endmenu # Boot images
source "common/Kconfig"