diff --git a/buildconf/raspberrypi4-64/bblayers.conf.sample b/buildconf/raspberrypi4-64/bblayers.conf.sample
new file mode 100644
index 0000000..8c65ece
--- /dev/null
+++ b/buildconf/raspberrypi4-64/bblayers.conf.sample
@@ -0,0 +1,19 @@
+# POKY_BBLAYERS_CONF_VERSION is increased each time build/conf/bblayers.conf
+# changes incompatibly
+POKY_BBLAYERS_CONF_VERSION = "3"
+
+BBPATH = "${TOPDIR}"
+BBFILES ?= ""
+
+BBLAYERS ?= " \
+  ${TOPDIR}/../layers/poky/meta \
+  ${TOPDIR}/../layers/poky/meta-poky \
+  ${TOPDIR}/../layers/poky/meta-yocto-bsp \
+  ${TOPDIR}/../layers/meta-openembedded/meta-filesystems \
+  ${TOPDIR}/../layers/meta-openembedded/meta-oe \
+  ${TOPDIR}/../layers/meta-openembedded/meta-networking \
+  ${TOPDIR}/../layers/meta-openembedded/meta-python \
+  ${TOPDIR}/../layers/meta-raspberrypi \
+  ${TOPDIR}/../layers/meta-virtualization \
+  ${TOPDIR}/../layers/meta-blackfinn \
+  "
diff --git a/buildconf/raspberrypi4-64/conf-notes.txt b/buildconf/raspberrypi4-64/conf-notes.txt
new file mode 100644
index 0000000..48af6bd
--- /dev/null
+++ b/buildconf/raspberrypi4-64/conf-notes.txt
@@ -0,0 +1,11 @@
+Common targets are:
+    console-image
+    console-dev-image
+    tiny-image
+    docker-image
+    core-image-minimal
+    core-image-sato
+    meta-toolchain
+    adt-installer
+    meta-ide-support
+
diff --git a/buildconf/raspberrypi4-64/local.conf.sample b/buildconf/raspberrypi4-64/local.conf.sample
new file mode 100644
index 0000000..f125771
--- /dev/null
+++ b/buildconf/raspberrypi4-64/local.conf.sample
@@ -0,0 +1,46 @@
+MACHINE ?= "raspberrypi3-64"
+
+DISTRO ?= "roro"
+PACKAGE_CLASSES ?= "package_ipk"
+
+#SDKMACHINE ?= "i686"
+
+#EXTRA_IMAGE_FEATURES ?= "debug-tweaks"
+
+USER_CLASSES ?= "buildstats image-mklibs image-prelink"
+
+PATCHRESOLVE = "noop"
+
+BB_DISKMON_DIRS = "\
+    STOPTASKS,${TMPDIR},1G,100K \
+    STOPTASKS,${DL_DIR},1G,100K \
+    STOPTASKS,${SSTATE_DIR},1G,100K \
+    STOPTASKS,/tmp,100M,100K \
+    ABORT,${TMPDIR},100M,1K \
+    ABORT,${DL_DIR},100M,1K \
+    ABORT,${SSTATE_DIR},100M,1K \
+    ABORT,/tmp,10M,1K"
+
+#SSTATE_MIRRORS ?= "\
+#file://.* http://someserver.tld/share/sstate/PATH;downloadfilename=PATH \n \
+#file://.* file:///some/local/dir/sstate/PATH"
+
+CONF_VERSION = "1"
+
+ENABLE_UART = "1"
+ENABLE_SPI_BUS = "1"
+ENABLE_I2C = "1"
+
+INHERIT += "rm_work"
+
+INHERIT += "own-mirrors"
+SOURCE_MIRROR_URL = "https://files.blackfinn.de/mirror/sources"
+BB_GENERATE_MIRROR_TARBALLS = "1"
+
+export BB_ENV_EXTRAWHITE="$BB_ENV_EXTRAWHITE DL_DIR"
+
+ICECC_PARALLEL_MAKE = "-j 24"
+INHERIT += "icecc"
+
+ICECC_USER_PACKAGE_BL = "pkgconfig-native"
+
diff --git a/recipes-core/base-files/files/raspberrypi3_64/motd b/recipes-core/base-files/files/raspberrypi%/motd
similarity index 100%
rename from recipes-core/base-files/files/raspberrypi3_64/motd
rename to recipes-core/base-files/files/raspberrypi%/motd
diff --git a/recipes-core/init-ifupdown-1.0/files/raspberrypi3-64/interfaces b/recipes-core/init-ifupdown-1.0/files/raspberrypi%/interfaces
similarity index 100%
rename from recipes-core/init-ifupdown-1.0/files/raspberrypi3-64/interfaces
rename to recipes-core/init-ifupdown-1.0/files/raspberrypi%/interfaces
diff --git a/recipes-devtools/opkg/files/raspberrypi4_64/opkg.conf b/recipes-devtools/opkg/files/raspberrypi4_64/opkg.conf
new file mode 100644
index 0000000..1d0c03e
--- /dev/null
+++ b/recipes-devtools/opkg/files/raspberrypi4_64/opkg.conf
@@ -0,0 +1,32 @@
+# Must have one or more source entries of the form:
+#
+#   src <src-name> <source-url>
+#
+# and one or more destination entries of the form:
+#
+#   dest <dest-name> <target-path>
+#
+# where <src-name> and <dest-names> are identifiers that
+# should match [a-zA-Z0-9._-]+, <source-url> should be a
+# URL that points to a directory containing a Familiar
+# Packages file, and <target-path> should be a directory
+# that exists on the target system.
+
+# Proxy Support
+#option http_proxy http://proxy.tld:3128
+#option ftp_proxy http://proxy.tld:3128
+#option proxy_username <username>
+#option proxy_password <password>
+
+# Enable GPGME signature
+# option check_signature 1
+
+# Offline mode (for use in constructing flash images offline)
+#option offline_root target
+
+src/gz all https://opkg.blackfinn.de/thud/all
+src/gz raspberrypi4_64 https://opkg.blackfinn.de/thud/raspberrypi4_64
+src/gz aarch64 https://opkg.blackfinn.de/thud/aarch64
+
+# Default destination for installed packages
+dest root /