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ARM: add config option to build zImage/dtb combo

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Allows a defconfig to set a default dtb to concatenate with a zImage
to create a zImage-dtb.<dtb name>

Signed-off-by: Erik Gilling <konkers@android.com>
Change-Id: I34b643b1c49228fbae88a56e46c93c478089620d
This commit is contained in:
Erik Gilling 2013-03-25 15:04:41 -07:00 • committed by John Stultz
parent e6bc002dde
commit d7a9d61873
2 changed files with 17 additions and 0 deletions
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15
arch/arm/Kconfig
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@ -1853,6 +1853,21 @@ config DEPRECATED_PARAM_STRUCT
This was deprecated in 2001 and announced to live on for 5 years. This was deprecated in 2001 and announced to live on for 5 years.
Some old boot loaders still use this way. Some old boot loaders still use this way.
config BUILD_ARM_APPENDED_DTB_IMAGE
bool "Build a concatenated zImage/dtb by default"
depends on OF
help
Enabling this option will cause a concatenated zImage and DTB to
be built by default (instead of a standalone zImage.) The image
will built in arch/arm/boot/zImage-dtb.<dtb name>
config BUILD_ARM_APPENDED_DTB_IMAGE_NAME
string "Default dtb name"
depends on BUILD_ARM_APPENDED_DTB_IMAGE
help
name of the dtb to append when building a concatenated
zImage/dtb.
# Compressed boot loader in ROM. Yes, we really want to ask about # Compressed boot loader in ROM. Yes, we really want to ask about
# TEXT and BSS so we preserve their values in the config files. # TEXT and BSS so we preserve their values in the config files.
config ZBOOT_ROM_TEXT config ZBOOT_ROM_TEXT

2
arch/arm/Makefile
View file

@ -296,6 +296,8 @@ libs-y := arch/arm/lib/ $(libs-y)
# Default target when executing plain make # Default target when executing plain make
ifeq ($(CONFIG_XIP_KERNEL),y) ifeq ($(CONFIG_XIP_KERNEL),y)
KBUILD_IMAGE := xipImage KBUILD_IMAGE := xipImage
else ifeq ($(CONFIG_BUILD_ARM_APPENDED_DTB_IMAGE),y)
KBUILD_IMAGE := zImage-dtb.$(CONFIG_BUILD_ARM_APPENDED_DTB_IMAGE_NAME)
else else
KBUILD_IMAGE := zImage KBUILD_IMAGE := zImage
endif endif