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linux: add binary devicetree generation

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* Add binary devicetree generation support
* Taken from OE
* v2 reorder patch set
* v3 remove package_stagefile_shell
* v4 rename devicetree_image function to install_append
* remove pkg_postinst_kernel-devicetree,
  pkg_postrm_kernel-devicetree functions
* Update KERNEL_DEVICETREE_FLAGS use "-p" option instead
  of "-S" which is deprecated

Signed-off-by: Adrian Alonso <aalonso00@gmail.com>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
This commit is contained in:
Adrian Alonso
2010-09-09 09:25:58 -05:00
committed by Richard Purdie
parent be11510e21
commit 9619df0969
1 changed files with 27 additions and 0 deletions
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27
meta/recipes-kernel/linux/linux.inc
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@@ -15,6 +15,21 @@ CMDLINE_at91sam9263ek = "mem=64M console=ttyS0,115200 root=/dev/mmcblk0p1 rootfs
#boot from nfs
#CMDLINE_at91sam9263ek = "mem=64M console=ttyS0,115200 root=301 root=/dev/nfs nfsroot=172.20.3.1:/data/at91 ip=172.20.0.5:::255.255.0.0"
# Support for device tree generation
FILES_kernel_devicetree = "/boot/devicetree*"
KERNEL_DEVICETREE_FLAGS = "-R 8 -p 0x3000"
python __anonymous () {
import bb
devicetree = bb.data.getVar("KERNEL_DEVICETREE", d, 1) or ''
if devicetree:
depends = bb.data.getVar("DEPENDS", d, 1)
bb.data.setVar("DEPENDS", "%s dtc-native" % depends, d)
packages = bb.data.getVar("PACKAGES", d, 1)
bb.data.setVar("PACKAGES", "%s kernel-devicetree" % packages, d)
}
do_configure_prepend() {
echo "" > ${S}/.config
@@ -89,3 +104,15 @@ do_install_prepend() {
ln -f arch/${ARCH}/kernel/vmlinux.lds arch/${ARCH}/boot/vmlinux
fi
}
do_install_append() {
if test -n "${KERNEL_DEVICETREE}"; then
dtc -I dts -O dtb ${KERNEL_DEVICETREE_FLAGS} -o devicetree ${KERNEL_DEVICETREE}
install -m 0644 devicetree ${D}/boot/devicetree-${KERNEL_VERSION}
install -d ${DEPLOY_DIR_IMAGE}
install -m 0644 devicetree ${DEPLOY_DIR_IMAGE}/${KERNEL_IMAGE_BASE_NAME}.dtb
cd ${DEPLOY_DIR_IMAGE}
rm -f ${KERNEL_IMAGE_SYMLINK_NAME}.dtb
ln -sf ${KERNEL_IMAGE_BASE_NAME}.dtb ${KERNEL_IMAGE_SYMLINK_NAME}.dtb
fi
}