diff options
author | ToshikazuOhiwa <toshikazu_ohiwa@mail.toyota.co.jp> | 2020-03-30 09:24:26 +0900 |
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committer | ToshikazuOhiwa <toshikazu_ohiwa@mail.toyota.co.jp> | 2020-03-30 09:24:26 +0900 |
commit | 5b80bfd7bffd4c20d80b7c70a7130529e9a755dd (patch) | |
tree | b4bb18dcd1487dbf1ea8127e5671b7bb2eded033 /external/poky/meta/classes/kernel-devicetree.bbclass | |
parent | 706ad73eb02caf8532deaf5d38995bd258725cb8 (diff) |
agl-basesystem
Diffstat (limited to 'external/poky/meta/classes/kernel-devicetree.bbclass')
-rw-r--r-- | external/poky/meta/classes/kernel-devicetree.bbclass | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/external/poky/meta/classes/kernel-devicetree.bbclass b/external/poky/meta/classes/kernel-devicetree.bbclass new file mode 100644 index 00000000..867b776a --- /dev/null +++ b/external/poky/meta/classes/kernel-devicetree.bbclass @@ -0,0 +1,95 @@ +# Support for device tree generation +PACKAGES_append = " \ + ${KERNEL_PACKAGE_NAME}-devicetree \ + ${@[d.getVar('KERNEL_PACKAGE_NAME') + '-image-zimage-bundle', ''][d.getVar('KERNEL_DEVICETREE_BUNDLE') != '1']} \ +" +FILES_${KERNEL_PACKAGE_NAME}-devicetree = "/${KERNEL_IMAGEDEST}/*.dtb /${KERNEL_IMAGEDEST}/*.dtbo" +FILES_${KERNEL_PACKAGE_NAME}-image-zimage-bundle = "/${KERNEL_IMAGEDEST}/zImage-*.dtb.bin" + +# Generate kernel+devicetree bundle +KERNEL_DEVICETREE_BUNDLE ?= "0" + +normalize_dtb () { + dtb="$1" + if echo $dtb | grep -q '/dts/'; then + bbwarn "$dtb contains the full path to the the dts file, but only the dtb name should be used." + dtb=`basename $dtb | sed 's,\.dts$,.dtb,g'` + fi + echo "$dtb" +} + +get_real_dtb_path_in_kernel () { + dtb="$1" + dtb_path="${B}/arch/${ARCH}/boot/dts/$dtb" + if [ ! -e "$dtb_path" ]; then + dtb_path="${B}/arch/${ARCH}/boot/$dtb" + fi + echo "$dtb_path" +} + +do_configure_append() { + if [ "${KERNEL_DEVICETREE_BUNDLE}" = "1" ]; then + if echo ${KERNEL_IMAGETYPE_FOR_MAKE} | grep -q 'zImage'; then + case "${ARCH}" in + "arm") + config="${B}/.config" + if ! grep -q 'CONFIG_ARM_APPENDED_DTB=y' $config; then + bbwarn 'CONFIG_ARM_APPENDED_DTB is NOT enabled in the kernel. Enabling it to allow the kernel to boot with the Device Tree appended!' + sed -i "/CONFIG_ARM_APPENDED_DTB[ =]/d" $config + echo "CONFIG_ARM_APPENDED_DTB=y" >> $config + echo "# CONFIG_ARM_ATAG_DTB_COMPAT is not set" >> $config + fi + ;; + *) + bberror "KERNEL_DEVICETREE_BUNDLE is not supported for ${ARCH}. Currently it is only supported for 'ARM'." + esac + else + bberror 'The KERNEL_DEVICETREE_BUNDLE requires the KERNEL_IMAGETYPE to contain zImage.' + fi + fi +} + +do_compile_append() { + for dtbf in ${KERNEL_DEVICETREE}; do + dtb=`normalize_dtb "$dtbf"` + oe_runmake $dtb + done +} + +do_install_append() { + for dtbf in ${KERNEL_DEVICETREE}; do + dtb=`normalize_dtb "$dtbf"` + dtb_ext=${dtb##*.} + dtb_base_name=`basename $dtb .$dtb_ext` + dtb_path=`get_real_dtb_path_in_kernel "$dtb"` + install -m 0644 $dtb_path ${D}/${KERNEL_IMAGEDEST}/$dtb_base_name.$dtb_ext + done +} + +do_deploy_append() { + for dtbf in ${KERNEL_DEVICETREE}; do + dtb=`normalize_dtb "$dtbf"` + dtb_ext=${dtb##*.} + dtb_base_name=`basename $dtb .$dtb_ext` + install -d ${DEPLOYDIR} + install -m 0644 ${D}/${KERNEL_IMAGEDEST}/$dtb_base_name.$dtb_ext ${DEPLOYDIR}/$dtb_base_name-${KERNEL_DTB_NAME}.$dtb_ext + ln -sf $dtb_base_name-${KERNEL_DTB_NAME}.$dtb_ext ${DEPLOYDIR}/$dtb_base_name.$dtb_ext + ln -sf $dtb_base_name-${KERNEL_DTB_NAME}.$dtb_ext ${DEPLOYDIR}/$dtb_base_name-${KERNEL_DTB_LINK_NAME}.$dtb_ext + for type in ${KERNEL_IMAGETYPE_FOR_MAKE}; do + if [ "$type" = "zImage" ] && [ "${KERNEL_DEVICETREE_BUNDLE}" = "1" ]; then + cat ${D}/${KERNEL_IMAGEDEST}/$type \ + ${DEPLOYDIR}/$dtb_base_name-${KERNEL_DTB_NAME}.$dtb_ext \ + > ${DEPLOYDIR}/$type-$dtb_base_name-${KERNEL_DTB_NAME}.$dtb_ext.bin + ln -sf $type-$dtb_base_name-${KERNEL_DTB_NAME}.$dtb_ext.bin \ + ${DEPLOYDIR}/$type-$dtb_base_name-${KERNEL_DTB_LINK_NAME}.$dtb_ext.bin + if [ -e "${KERNEL_OUTPUT_DIR}/${type}.initramfs" ]; then + cat ${KERNEL_OUTPUT_DIR}/${type}.initramfs \ + ${DEPLOYDIR}/$dtb_base_name-${KERNEL_DTB_NAME}.$dtb_ext + > ${DEPLOYDIR}/${type}-${INITRAMFS_NAME}-$dtb_base_name-${KERNEL_DTB_NAME}.$dtb_ext.bin + ln -sf ${type}-${INITRAMFS_NAME}-$dtb_base_name-${KERNEL_DTB_NAME}.$dtb_ext.bin \ + ${DEPLOYDIR}/${type}-${INITRAMFS_NAME}-$dtb_base_name-${KERNEL_DTB_LINK_NAME}.$dtb_ext.bin + fi + fi + done + done +} |