lopper, python-dtc: add new recipes for device tree tools

This device tree tooling is being added as a prequisite for enabling
qemuboot with the Arm 64-bit version of the Xen hypervisor.

lopper: a tool for performing operations on device tree files.
A new recipe inspired by the original from meta-xilinx-bsp.

python-dtc: a python library for the Device Tree compiler.
This is a prerequisite for lopper. Updated import of recipe from
meta-xilinx-bsp for the latest release, version 1.6.1.

Signed-off-by: Christopher Clark <christopher.clark@starlab.io>
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>

2 files changed, 73 insertions, 0 deletions

diff --git a/recipes-kernel/dtc/python3-dtc_1.6.1.bb b/recipes-kernel/dtc/python3-dtc_1.6.1.bb
new file mode 100644
index 00000000..90889314
--- /dev/null
+++ b/recipes-kernel/dtc/python3-dtc_1.6.1.bb
@@ -0,0 +1,28 @@
+SUMMARY = "Python Library for the Device Tree Compiler"
+HOMEPAGE = "https://devicetree.org/"
+DESCRIPTION = "A python library for the Device Tree Compiler, a tool used to manipulate Device Tree files which contain a data structure for describing hardware."
+SECTION = "bootloader"
+LICENSE = "GPLv2 | BSD"
+
+DEPENDS = "flex-native bison-native swig-native libyaml dtc"
+
+SRC_URI = "git://git.kernel.org/pub/scm/utils/dtc/dtc.git"
+
+UPSTREAM_CHECK_GITTAGREGEX = "v(?P<pver>\d+(\.\d+)+)"
+
+LIC_FILES_CHKSUM = "file://pylibfdt/libfdt.i;beginline=1;endline=6;md5=afda088c974174a29108c8d80b5dce90"
+
+SRCREV = "ecaeb97fec013973360e94888a7de645f084345c"
+
+S = "${WORKDIR}/git"
+
+inherit distutils3
+
+DISTUTILS_SETUP_PATH = "${S}/pylibfdt"
+
+do_configure_prepend() {
+    oe_runmake -C "${S}" version_gen.h
+    mv "${S}/version_gen.h" "${DISTUTILS_SETUP_PATH}/"
+}
+
+BBCLASSEXTEND = "native nativesdk"
diff --git a/recipes-kernel/lopper/lopper.bb b/recipes-kernel/lopper/lopper.bb
new file mode 100644
index 00000000..274d5b9a
--- /dev/null
+++ b/recipes-kernel/lopper/lopper.bb
@@ -0,0 +1,45 @@
+SUMMARY = "Device Tree Lopper"
+DESCRIPTION = "Tool for manipulation of system device tree files"
+LICENSE = "BSD-3-Clause"
+SECTION = "bootloader"
+
+SRC_URI = "git://github.com/devicetree-org/lopper.git"
+SRCREV = "0c23e51d585608ab04009ccf3499f168e2f4d478"
+S = "${WORKDIR}/git"
+
+LIC_FILES_CHKSUM = "file://LICENSE.md;md5=8e5f5f691f01c9fdfa7a7f2d535be619"
+
+RDEPENDS_${PN} = " \
+    python3-core \
+    python3-dtc \
+    python3-humanfriendly \
+    "
+
+do_install() {
+    install -d "${D}/${bindir}"
+    install -d "${D}/${datadir}/${BPN}"
+
+    install -m 0644 "${S}/README" "${D}/${datadir}/${BPN}"
+    install -m 0644 "${S}/README-architecture.txt" "${D}/${datadir}/${BPN}"
+    install -m 0644 "${S}/README.pydoc" "${D}/${datadir}/${BPN}"
+    install -m 0644 "${S}/LICENSE.md" "${D}/${datadir}/${BPN}"
+
+    install -d "${D}/${datadir}/${BPN}/assists"
+    install -m 0644 "${S}/assists/"* "${D}/${datadir}/${BPN}/assists/"
+
+    install -d "${D}/${datadir}/${BPN}/lops"
+    install -m 0644 "${S}/lops/"* "${D}/${datadir}/${BPN}/lops/"
+
+    install -d "${D}/${datadir}/${BPN}/device-trees"
+    install -m 0644 "${S}/device-trees/"* "${D}/${datadir}/${BPN}/device-trees/"
+
+    install -m 0755 "${S}/"lopper*.py "${D}/${datadir}/${BPN}/"
+
+    datadir_relpath=${@os.path.relpath(d.getVar('datadir'), d.getVar('bindir'))}
+    ln -s "${datadir_relpath}/${BPN}/lopper.py" "${D}/${bindir}/"
+}
+
+do_configure[noexec] = "1"
+do_compile[noexec] = "1"
+
+BBCLASSEXTEND = "native nativesdk"