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| author |   Otavio Salvador <otavio@ossystems.com.br> | 2017-09-12 17:36:06 -0300 |
|---|---|---|
| committer |   Richard Purdie <richard.purdie@linuxfoundation.org> | 2017-09-13 21:59:57 +0100 |
| commit | 03a00be7f2062aefef0e51ef20a4c9737f6685e7 (patch) | |
| tree | 61aff1d5c5fe363a9b424571a9b051d6df63e60d /meta/classes/kernel-devicetree.bbclass | |
| parent | d2d069fa9910d1c7a94c898355a63fca03ec5ad8 (diff) | |
| download | openembedded-core-03a00be7f2062aefef0e51ef20a4c9737f6685e7.tar.gz | |
kernel: Move Device Tree support to kernel.bbclass
The Device Tree is commonly used but it is still kept as a .inc file
instead of a proper class. Instead now we move the Device Tree code to
a kernel-devicetree class and automatically enable it when the
KERNEL_DEVICETREE variable is set.
To avoid breakage in existing layers, we kept a linux-dtb.inc file
which raises a warning telling the user about the change so in next
release this can be removed.
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'meta/classes/kernel-devicetree.bbclass')
| -rw-r--r-- | meta/classes/kernel-devicetree.bbclass | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/meta/classes/kernel-devicetree.bbclass b/meta/classes/kernel-devicetree.bbclass new file mode 100644 index 0000000000..72814ca224 --- /dev/null +++ b/meta/classes/kernel-devicetree.bbclass @@ -0,0 +1,62 @@ +# Support for device tree generation +PACKAGES_append = " kernel-devicetree" +FILES_kernel-devicetree = "/${KERNEL_IMAGEDEST}/*.dtb /${KERNEL_IMAGEDEST}/*.dtbo" + +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_compile_append() { + for DTB in ${KERNEL_DEVICETREE}; do + DTB=`normalize_dtb "${DTB}"` + oe_runmake ${DTB} + done +} + +do_install_append() { + for DTB in ${KERNEL_DEVICETREE}; do + DTB=`normalize_dtb "${DTB}"` + DTB_EXT=${DTB##*.} + DTB_PATH=`get_real_dtb_path_in_kernel "${DTB}"` + DTB_BASE_NAME=`basename ${DTB} ."${DTB_EXT}"` + install -m 0644 ${DTB_PATH} ${D}/${KERNEL_IMAGEDEST}/${DTB_BASE_NAME}.${DTB_EXT} + for type in ${KERNEL_IMAGETYPE_FOR_MAKE}; do + symlink_name=${type}"-"${KERNEL_IMAGE_SYMLINK_NAME} + DTB_SYMLINK_NAME=`echo ${symlink_name} | sed "s/${MACHINE}/${DTB_BASE_NAME}/g"` + ln -sf ${DTB_BASE_NAME}.${DTB_EXT} ${D}/${KERNEL_IMAGEDEST}/devicetree-${DTB_SYMLINK_NAME}.${DTB_EXT} + done + done +} + +do_deploy_append() { + for DTB in ${KERNEL_DEVICETREE}; do + DTB=`normalize_dtb "${DTB}"` + DTB_EXT=${DTB##*.} + DTB_BASE_NAME=`basename ${DTB} ."${DTB_EXT}"` + for type in ${KERNEL_IMAGETYPE_FOR_MAKE}; do + base_name=${type}"-"${KERNEL_IMAGE_BASE_NAME} + symlink_name=${type}"-"${KERNEL_IMAGE_SYMLINK_NAME} + DTB_NAME=`echo ${base_name} | sed "s/${MACHINE}/${DTB_BASE_NAME}/g"` + DTB_SYMLINK_NAME=`echo ${symlink_name} | sed "s/${MACHINE}/${DTB_BASE_NAME}/g"` + DTB_PATH=`get_real_dtb_path_in_kernel "${DTB}"` + install -d ${DEPLOYDIR} + install -m 0644 ${DTB_PATH} ${DEPLOYDIR}/${DTB_NAME}.${DTB_EXT} + ln -sf ${DTB_NAME}.${DTB_EXT} ${DEPLOYDIR}/${DTB_SYMLINK_NAME}.${DTB_EXT} + ln -sf ${DTB_NAME}.${DTB_EXT} ${DEPLOYDIR}/${DTB_BASE_NAME}.${DTB_EXT} + done + done +} |