If you need to add firmware, install the file(s) and then point to them in the kernel configuration and recompile the kernel if necessary. To find out which firmware you need, consult the <ulink url="&radeon-marketing-names;"> Decoder ring for engineering vs marketing names</ulink>. Download any firmware for your card which is named like: <filename><replaceable><ENGINEERING_NAME></replaceable>_rlc.bin</filename>, etc. Below is an example for Radeon R7 M340 GPU, which is codenamed Iceland/Topaz, along with a network card that also requires the firmware: