Currently kernel-fitimage gets the dtb from KERNEL_DEVICETREE, however
there are instances when the DTB file can be generated using other
recipes, provide a way to include the DTB instead of inkernel device
tree.
Add support for external device tree during the creation of fitimage. If
virtual/dtb is set using PREFERRED_PROVIDER_virtual/dtb = "devicetree", which
inherits the devicetree.bbclass then use the path provided in
EXTERNAL_KERNEL_DEVICETREE else use KERNEL_DEVICETREE during fitimage process
Signed-off-by: Manjukumar Matha <manjukumar.harthikote-ma...@xilinx.com>
---
Changelog v2:
Update commit message to indicate PREFERRED_PROVIDER_virtual/dtb = "devicetree"
to set external devicetree recipe
meta/classes/kernel-fitimage.bbclass | 20 +++++++++++++++++++-
1 file changed, 19 insertions(+), 1 deletion(-)
diff --git a/meta/classes/kernel-fitimage.bbclass
b/meta/classes/kernel-fitimage.bbclass
index 8ebd3dd..3adb1c9 100644
--- a/meta/classes/kernel-fitimage.bbclass
+++ b/meta/classes/kernel-fitimage.bbclass
@@ -30,6 +30,13 @@ python __anonymous () {
if image:
d.appendVarFlag('do_assemble_fitimage_initramfs', 'depends', '
${INITRAMFS_IMAGE}:do_image_complete')
+ #check if there are any dtb providers
+ providerdtb = d.getVar("PREFERRED_PROVIDER_virtual/dtb")
+ if providerdtb:
+ d.appendVarFlag('do_assemble_fitimage', 'depends', '
virtual/dtb:do_populate_sysroot')
+ d.appendVarFlag('do_assemble_fitimage_initramfs', 'depends', '
virtual/dtb:do_populate_sysroot')
+ d.setVar('EXTERNAL_KERNEL_DEVICETREE',
"${RECIPE_SYSROOT}/boot/devicetree")
+
# Verified boot will sign the fitImage and append the public key to
# U-Boot dtb. We ensure the U-Boot dtb is deployed before assembling
# the fitImage:
@@ -373,7 +380,8 @@ fitimage_assemble() {
#
# Step 2: Prepare a DTB image section
#
- if [ -n "${KERNEL_DEVICETREE}" ]; then
+
+ if [ -z "${EXTERNAL_KERNEL_DEVICETREE}" ] && [ -n
"${KERNEL_DEVICETREE}" ]; then
dtbcount=1
for DTB in ${KERNEL_DEVICETREE}; do
if echo ${DTB} | grep -q '/dts/'; then
@@ -391,6 +399,16 @@ fitimage_assemble() {
done
fi
+ if [ -n "${EXTERNAL_KERNEL_DEVICETREE}" ]; then
+ dtbcount=1
+ for DTBFILE in ${EXTERNAL_KERNEL_DEVICETREE}/*.dtb; do
+ DTB=`basename ${DTBFILE}`
+ DTB=$(echo "${DTB}" | tr '/' '_')
+ DTBS="${DTBS} ${DTB}"
+ fitimage_emit_section_dtb ${1} ${DTB} ${DTBFILE}
+ done
+ fi
+
#
# Step 3: Prepare a setup section. (For x86)
#
--
2.7.4
--
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