diff --git a/README.md b/README.md
index 60ce0dc..457c636 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,4 @@
 # alsa-sof-firmware
 
+Firmware and topology files for Sound Open Firmware project.
+
diff --git a/alsa-sof-firmware.spec b/alsa-sof-firmware.spec
new file mode 100644
index 0000000..3c739ad
--- /dev/null
+++ b/alsa-sof-firmware.spec
@@ -0,0 +1,58 @@
+%global sof_commit 72a04d57d04c2df6e9dbf4eba0a98f40c252ee0b
+Name:          alsa-sof-firmware
+Version:       1.4.2
+Release:       1mamba
+Summary:       Firmware and topology files for Sound Open Firmware project
+Group:         System/Kernel and Hardware
+Vendor:        openmamba
+Distribution:  openmamba
+Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
+URL:           https://github.com/thesofproject/sof-bin
+Source:        https://github.com/thesofproject/sof-bin.git/stable-v%{version}@%{sof_commit}/sof-bin-%{version}.tar.bz2
+License:       BSD
+## AUTOBUILDREQ-BEGIN
+## AUTOBUILDREQ-END
+BuildRoot:     %{_tmppath}/%{name}-%{version}-root
+
+%description
+Firmware and topology files for Sound Open Firmware project.
+
+%prep
+%setup -q -n sof-bin-%{version}
+
+# add missing symlink
+ln -s v1.4.2/intel-signed/sof-cnl-v1.4.2.ri lib/firmware/intel/sof/sof-cml.ri
+
+%build
+
+%install
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+
+install -d -m0755 %{buildroot}/lib/firmware
+cp -a lib/firmware/intel %{buildroot}/lib/firmware/
+
+# remove debug files
+find -P . -name "*.ldc" -exec rm -f {} \;
+
+%clean
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+
+%files
+%defattr(-,root,root)
+%dir /lib/firmware/intel/sof
+/lib/firmware/intel/sof/sof-*.ri
+/lib/firmware/intel/sof-tplg
+%dir /lib/firmware/intel/sof-tplg-v%{version}
+/lib/firmware/intel/sof-tplg-v%{version}/sof-*.tplg
+%dir /lib/firmware/intel/sof/v%{version}/intel-signed
+/lib/firmware/intel/sof/v%{version}/intel-signed/sof-*.ri
+%dir /lib/firmware/intel/sof/v%{version}/public-signed
+/lib/firmware/intel/sof/v%{version}/public-signed/sof-*.ri
+%dir /lib/firmware/intel/sof/v%{version}
+/lib/firmware/intel/sof/v%{version}/sof-*.ldc
+/lib/firmware/intel/sof/v%{version}/sof-*.ri
+%doc LICENCE.Intel
+
+%changelog
+* Wed Apr 08 2020 Silvan Calarco <silvan.calarco@mambasoft.it> 1.4.2-1mamba
+- package created using the webbuild interface