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Diffstat (limited to 'meta-xilinx-core/recipes-bsp/device-tree/device-tree.bb')
| -rw-r--r-- | meta-xilinx-core/recipes-bsp/device-tree/device-tree.bb | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/meta-xilinx-core/recipes-bsp/device-tree/device-tree.bb b/meta-xilinx-core/recipes-bsp/device-tree/device-tree.bb new file mode 100644 index 00000000..26a10677 --- /dev/null +++ b/meta-xilinx-core/recipes-bsp/device-tree/device-tree.bb @@ -0,0 +1,167 @@ +SUMMARY = "Xilinx BSP device trees" +DESCRIPTION = "Xilinx BSP device trees from within layer." +SECTION = "bsp" + +# the device trees from within the layer are licensed as MIT, kernel includes are GPL +LICENSE = "MIT & GPL-2.0-or-later" +LIC_FILES_CHKSUM = " \ + file://${COMMON_LICENSE_DIR}/MIT;md5=0835ade698e0bcf8506ecda2f7b4f302 \ + file://${COMMON_LICENSE_DIR}/GPL-2.0-or-later;md5=fed54355545ffd980b814dab4a3b312c \ + " + +# Since we're not based on a kernel default to nothing. +# This needs to be before the devicetree inherit, as it configured for use +# with a linux kernel by default. +KERNEL_INCLUDE ?= "" + +inherit devicetree image-artifact-names + +# Fall back to SYSTEM_DTFILE if specified... +# CONFIG_DTFILE is intended to hold a specific configuration's (multiconfig) +# device tree, while SYSTEM_DTFILE is used for the full heterogenous +# system. +SYSTEM_DTFILE ??= "" +CONFIG_DTFILE ??= "${SYSTEM_DTFILE}" + +BASE_DTS ?= "${@os.path.basename(d.getVar('CONFIG_DTFILE') or '').rstrip('.dtb').rstrip('.dts') or 'system-top'}" + +EXTRA_DT_FILES ?= "" +EXTRA_DTFILE_PREFIX ?= "system-top" +EXTRA_DTFILES_BUNDLE ?= "" +UBOOT_DT_FILES ?= "" +UBOOT_DTFILE_PREFIX ?= "system-top" +UBOOT_DTFILES_BUNDLE ?= "" +EXTRA_OVERLAYS ?= "" + +SYSTEM_DTFILE[doc] = "System Device Tree which accepts at 0...1 dts file" +CONFIG_DTFILE[doc] = "Domain Specific Device Tree which accepts 0...1 dts file" +EXTRA_DT_FILES[doc] = "Add extra files to DT_FILES_PATH, it accepts 1...n dtsi files and adds to SRC_URI" +EXTRA_OVERLAYS[doc] = "Add extra files to DT_FILES_PATH and adds a #include for each to the BASE_DTS, it access 1..n dtsi files and adds to SRC_URI" + +# There should only be ONE CONFIG_DTFILE listed +# These need to be passed in from global, not from a bbappend +FILESEXTRAPATHS:prepend := "${@'%s:' % os.path.dirname(d.getVar('CONFIG_DTFILE') or '') if (d.getVar('CONFIG_DTFILE')) else ''}" +SRC_URI:append := " ${@'file://%s' % os.path.basename(d.getVar('CONFIG_DTFILE') or '') if (d.getVar('CONFIG_DTFILE')) else ''}" + +SRC_URI:append = " ${@" ".join(["file://%s" % f for f in (d.getVar('EXTRA_DT_FILES') or "").split()])}" +SRC_URI:append = " ${@" ".join(["file://%s" % f for f in (d.getVar('EXTRA_OVERLAYS') or "").split()])}" + +COMPATIBLE_MACHINE:zynq = ".*" +COMPATIBLE_MACHINE:zynqmp = ".*" +COMPATIBLE_MACHINE:versal = ".*" + +DEPENDS += "python3-dtc-native" + +PROVIDES = "virtual/dtb" + +# common zynq include +SRC_URI:append:zynq = " file://zynq-7000-qspi-dummy.dtsi" + +DTB_FILE_NAME ?= "${BASE_DTS}.dtb" + +DTB_BASE_NAME ?= "${MACHINE}-system${IMAGE_VERSION_SUFFIX}" + +# Copy the EXTRA_DT_FILES and EXTRA_OVERLAYS files in prepend operation so that +# it can be preprocessed. +do_configure:prepend () { + # Create DT_FILES_PATH directory if doesn't exist during prepend operation. + if [ ! -d ${DT_FILES_PATH} ]; then + mkdir -p ${DT_FILES_PATH} + fi + + for f in ${EXTRA_DT_FILES} ${EXTRA_OVERLAYS}; do + if [ "$(realpath ${WORKDIR}/${f})" != "$(realpath ${DT_FILES_PATH}/`basename ${f}`)" ]; then + cp ${WORKDIR}/${f} ${DT_FILES_PATH}/ + fi + done +} + +do_configure:append () { + for f in ${EXTRA_OVERLAYS}; do + if [ ! -e ${DT_FILES_PATH}/${BASE_DTS}.dts ]; then + if [ -e ${DT_FILES_PATH}/${BASE_DTS}.dtb ]; then + bberror "Unable to find ${BASE_DTS}.dts, to use EXTRA_OVERLAYS you must use a 'dts' and not 'dtb' in CONFIG_DTFILE" + else + bberror "Unable to find ${BASE_DTS}.dts, to use EXTRA_OVERLAYS you must set a valid CONFIG_DTFILE or use system-top.dts" + fi + exit 1 + fi + echo "/include/ \"$f\"" >> ${DT_FILES_PATH}/${BASE_DTS}.dts + done +} + +devicetree_do_compile:append() { + import subprocess + + dtb_file = d.getVar('DTB_FILE_NAME') or '' + if not dtb_file or not os.path.isfile(dtb_file): + bb.error("Expected file ${DTB_FILE_NAME} doesn't exist") + + if d.getVar('EXTRA_DTFILES_BUNDLE'): + ccdtb_prefix = d.getVar('EXTRA_DTFILE_PREFIX') + extra_dt_files = d.getVar('EXTRA_DT_FILES').split() or [] + + for dtsfile in extra_dt_files: + dtname = os.path.splitext(os.path.basename(dtsfile))[0] + if os.path.isfile(f"{dtname}.dtbo"): + fdtargs = ["fdtoverlay", "-o", f"{ccdtb_prefix}-{dtname}.dtb", "-i", dtb_file, f"{dtname}.dtbo"] + bb.note("Running {0}".format(" ".join(fdtargs))) + subprocess.run(fdtargs, check = True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT) + + if d.getVar('UBOOT_DTFILES_BUNDLE'): + uboot_ccdtb_prefix = d.getVar('UBOOT_DTFILE_PREFIX') + uboot_dt_files = d.getVar('UBOOT_DT_FILES').split() or [] + + for dtsfile in uboot_dt_files: + dtname = os.path.splitext(os.path.basename(dtsfile))[0] + if os.path.isfile(f"{dtname}.dtbo"): + fdtargs = ["fdtoverlay", "-o", f"{uboot_ccdtb_prefix}-{dtname}.dtb", "-i", dtb_file, f"{dtname}.dtbo"] + bb.note("Running {0}".format(" ".join(fdtargs))) + subprocess.run(fdtargs, check = True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT) +} + +FILES:${PN} += "/boot/system.dtb" + +devicetree_do_install:append() { + if [ -n "${DTB_FILE_NAME}" ]; then + # If it's already a dtb, we have to copy from the original location + if [ -e "${DT_FILES_PATH}/${DTB_FILE_NAME}" ]; then + install -Dm 0644 ${DT_FILES_PATH}/${DTB_FILE_NAME} ${D}/boot/devicetree/${DTB_FILE_NAME} + fi + if [ -e "${D}/boot/devicetree/${DTB_FILE_NAME}" ]; then + # We need the output to be system.dtb for WIC setup to match XSCT flow + cp ${D}/boot/devicetree/${DTB_FILE_NAME} ${D}/boot/system.dtb + else + bberror "Expected filename ${DTB_FILE_NAME} doesn't exist in ${DEPLOYDIR}/devicetree" + fi + fi +} + +devicetree_do_deploy:append() { + if [ -n "${DTB_FILE_NAME}" ]; then + # If it's already a dtb, we have to copy from the original location + if [ -e "${DT_FILES_PATH}/${DTB_FILE_NAME}" ]; then + install -Dm 0644 ${DT_FILES_PATH}/${DTB_FILE_NAME} ${DEPLOYDIR}/devicetree/${DTB_FILE_NAME} + fi + if [ -e "${DEPLOYDIR}/devicetree/${DTB_FILE_NAME}" ]; then + # We need the output to be system.dtb for WIC setup to match XSCT flow + ln -sf devicetree/${DTB_FILE_NAME} ${DEPLOYDIR}/${DTB_BASE_NAME}.dtb + ln -sf devicetree/${DTB_FILE_NAME} ${DEPLOYDIR}/${MACHINE}-system.dtb + ln -sf devicetree/${DTB_FILE_NAME} ${DEPLOYDIR}/system.dtb + else + bberror "Expected filename ${DTB_FILE_NAME} doesn't exist in ${DEPLOYDIR}/devicetree" + fi + fi +} + +def check_devicetree_variables(d): + # Don't cache this, as the items on disk can change! + d.setVar('BB_DONT_CACHE', '1') + + if not d.getVar('CONFIG_DTFILE'): + raise bb.parse.SkipRecipe("CONFIG_DTFILE or SYSTEM_DTFILE is not defined.") + +python() { + # Need to allow bbappends to change the check + check_devicetree_variables(d) +} |