From 53067c4a97561747ea760d3b72cb3abc2b7409db Mon Sep 17 00:00:00 2001 From: Otavio Salvador Date: Tue, 12 Sep 2017 17:36:06 -0300 Subject: 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. (From OE-Core rev: 03a00be7f2062aefef0e51ef20a4c9737f6685e7) Signed-off-by: Otavio Salvador Signed-off-by: Richard Purdie --- meta/classes/kernel-devicetree.bbclass | 62 ++++++++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 meta/classes/kernel-devicetree.bbclass (limited to 'meta/classes/kernel-devicetree.bbclass') 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 +} -- cgit v1.2.3-54-g00ecf