I have never had an Afghan passport before
You may apply for an ordinary immigrant's passport, as it is not possible to be issued a new Afghan passport for the time being.
UDI will then consider whether you can be issued an immigrant's passport on special grounds. You must also fulfil the other requirements for an immigrant's passport in order to be issued an immigrant's passport on special grounds. Please see, Regulations concerning the entry of foreign nationals into the Kingdom of Norway and their presence in the realm [Immigration regulations], Section 12-5 (external website), fourth paragraph (in Norwegian).
If you need to travel to your home country, you may apply for an Immigrant’s passport for a single journey. You must include an explanation of the purpose of your trip with your application. UDI processes these applications on an ongoing basis and are not subject to the normal waiting times.