diff --git a/modem/msm-modem-wwan-port/APKBUILD b/modem/msm-modem-wwan-port/APKBUILD
new file mode 100644
index 000000000..620a5ec90
--- /dev/null
+++ b/modem/msm-modem-wwan-port/APKBUILD
@@ -0,0 +1,37 @@
+# Maintainer: Barnabas Czeman <barnabas.czeman@postmarketos.org>
+pkgname=msm-modem-wwan-port
+pkgver=1
+pkgrel=0
+pkgdesc="Open wwan port for older Qualcomm SoCs."
+url="https://postmarketos.org/"
+arch="armhf armv7 aarch64"
+license="GPL-3.0-or-later"
+depends="rmtfs"
+subpackages="
+	$pkgname-openrc
+"
+
+source="
+	msm-modem-wwan-port
+	msm-modem-wwan-port.initd
+"
+options="!check"
+
+package() {
+	install -Dm755 "$srcdir"/msm-modem-wwan-port \
+		-t "$pkgdir"/usr/libexec/
+}
+
+openrc() {
+	install_if="$pkgname=$pkgver-r$pkgrel openrc"
+	depends="openrc rmtfs-openrc"
+	install="$subpkgname.post-install"
+
+	install -Dm755 "$srcdir/$pkgname.initd" \
+		"$subpkgdir/etc/init.d/$pkgname"
+}
+
+sha512sums="
+14b91d616d796d89c3b7497b85ddd998f6108546118aee44531eb26183d3d09b0f6bb3f6a47840afbfc7bed115c4d6ac31369046b7281cfb3dc8a54f0fc8c58e  msm-modem-wwan-port
+133a18b2fb5a1753a9a1b7ff37faf69642f90be451484ba85235bba60394d66b875574bcc6461c0dffbf2bb80f37b9e95f280858f8893c7b79070bb7261305b3  msm-modem-wwan-port.initd
+"
diff --git a/modem/msm-modem-wwan-port/msm-modem-wwan-port b/modem/msm-modem-wwan-port/msm-modem-wwan-port
new file mode 100644
index 000000000..82ceac9ba
--- /dev/null
+++ b/modem/msm-modem-wwan-port/msm-modem-wwan-port
@@ -0,0 +1,39 @@
+#!/bin/sh
+set -eu
+QMICLI_MODEM=
+
+if command -v systemd-notify > /dev/null; then
+	trap '[ $? -eq 0 ] && systemd-notify --ready' EXIT
+fi
+
+# libqmi must be present to use this script.
+if ! [ -x "$(command -v qmicli)" ]
+then
+	echo 'qmicli is not installed.'
+	exit 1
+fi
+
+# Prepare a qmicli command with desired modem path.
+# The modem may appear after some delay, wait for it.
+count=0
+while [ -z "$QMICLI_MODEM" ] && [ "$count" -lt "45" ]
+do
+	# Check if QRTR is available
+	if qmicli --silent -pd qrtr://0 --uim-noop > /dev/null
+	then
+		QMICLI_MODEM="qmicli --silent -pd qrtr://0"
+		echo "Using qrtr://0"
+	fi
+	sleep 1
+	count=$((count+1))
+done
+echo "Waited $count seconds for modem device to appear"
+
+if [ -z "$QMICLI_MODEM" ]
+then
+	echo 'No modem available.'
+	exit 2
+fi
+
+$QMICLI_MODEM --dpm-open-port=hw-data-ep-type=bam-dmux,hw-data-ep-iface-number=1,hw-data-rx-id=1,hw-data-tx-id=1 > /dev/null
+exit $?
diff --git a/modem/msm-modem-wwan-port/msm-modem-wwan-port-openrc.post-install b/modem/msm-modem-wwan-port/msm-modem-wwan-port-openrc.post-install
new file mode 100644
index 000000000..be00428e9
--- /dev/null
+++ b/modem/msm-modem-wwan-port/msm-modem-wwan-port-openrc.post-install
@@ -0,0 +1,2 @@
+#!/bin/sh
+rc-update add msm-modem-wwan-port default
diff --git a/modem/msm-modem-wwan-port/msm-modem-wwan-port.initd b/modem/msm-modem-wwan-port/msm-modem-wwan-port.initd
new file mode 100644
index 000000000..6216f6bfd
--- /dev/null
+++ b/modem/msm-modem-wwan-port/msm-modem-wwan-port.initd
@@ -0,0 +1,19 @@
+#!/sbin/openrc-run
+
+# Based on msm-modem-uim-selection.initd
+
+name="Modem WWAN port"
+description="Activate the WWAN port on the embedded QMI modem"
+
+depend() {
+	need rmtfs
+	before ofono
+	before modemmanager
+}
+
+# All of the logic is placed in the service start method as we want to block
+# other services while the modem isn't ready yet.
+start() {
+  /usr/libexec/msm-modem-uim-selection
+  eend $?
+}