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ANDROID: 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>.

Change-Id: I34b643b1c49228fbae88a56e46c93c478089620d
Signed-off-by: Erik Gilling <konkers@android.com>
Git-commit: 23a70d4e7b8864cf405f997d3608de65a82cf87d
Git-repo: https://android.googlesource.com/kernel/common
[jshriram@codeaurora.org: Fixed minor merge conflicts]
Signed-off-by: Jeevan Shriram <jshriram@codeaurora.org>
This commit is contained in:
Erik Gilling 2013-03-25 15:04:41 -07:00 • committed by Jeevan Shriram
commit f1102b8027
2 changed files with 17 additions and 0 deletions
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15
arch/arm/Kconfig
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@ -1766,6 +1766,21 @@ config DEPRECATED_PARAM_STRUCT
This was deprecated in 2001 and announced to live on for 5 years.
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
# TEXT and BSS so we preserve their values in the config files.
config ZBOOT_ROM_TEXT

2
arch/arm/Makefile
View file

@ -300,6 +300,8 @@ libs-y := arch/arm/lib/ $(libs-y)
boot := arch/arm/boot
ifeq ($(CONFIG_XIP_KERNEL),y)
KBUILD_IMAGE := $(boot)/xipImage
else ifeq ($(CONFIG_BUILD_ARM_APPENDED_DTB_IMAGE),y)
KBUILD_IMAGE := $(boot)/zImage-dtb.$(CONFIG_BUILD_ARM_APPENDED_DTB_IMAGE_NAME)
else
KBUILD_IMAGE := $(boot)/zImage
endif