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linux-dtb: Add simple DTB symlinks for devicetree

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* This is similar to the symlinks provided for the kernel image
  in the /boot directory of a file system.  The goal is to have
  simply named symlinks in /boot that mirror the device tree
  name in the kernel sources.  This is so that programs like
  U-Boot can easily find the default device tree binary in the
  /boot directory and use that when booting the kernel.
* Use update-alternatives to handle proper creation and removal
  of the symlinks.

(From OE-Core rev: f972ec9522ade7dc35c535a65b04c9f31663f9aa)

Signed-off-by: Chase Maupin <Chase.Maupin@ti.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Chase Maupin 2013-04-03 14:23:58 -05:00 committed by Richard Purdie
parent 6b8dace6fa
commit 6e95fe1683
1 changed files with 20 additions and 0 deletions
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20
meta/recipes-kernel/linux/linux-dtb.inc
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@ -45,3 +45,23 @@ do_deploy_append() {
done
fi
}
pkg_postinst_kernel-devicetree () {
cd /${KERNEL_IMAGEDEST}
for DTS_FILE in ${KERNEL_DEVICETREE}
do
DTS_BASE_NAME=`basename ${DTS_FILE} | awk -F "." '{print $1}'`
DTB_SYMLINK_NAME=`echo ${KERNEL_IMAGE_SYMLINK_NAME} | sed "s/${MACHINE}/${DTS_BASE_NAME}/g"`
update-alternatives --install /${KERNEL_IMAGEDEST}/${DTS_BASE_NAME}.dtb ${DTS_BASE_NAME}.dtb devicetree-${DTB_SYMLINK_NAME}.dtb ${KERNEL_PRIORITY} || true
done
}
pkg_postrm_kernel-devicetree () {
cd /${KERNEL_IMAGEDEST}
for DTS_FILE in ${KERNEL_DEVICETREE}
do
DTS_BASE_NAME=`basename ${DTS_FILE} | awk -F "." '{print $1}'`
DTB_SYMLINK_NAME=`echo ${KERNEL_IMAGE_SYMLINK_NAME} | sed "s/${MACHINE}/${DTS_BASE_NAME}/g"`
update-alternatives --remove ${DTS_BASE_NAME}.dtb devicetree-${DTB_SYMLINK_NAME}.dtb ${KERNEL_PRIORITY} || true
done
}