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. Note that for R600 and R700 family, generic <filename>R600_rlc.bin</filename> and <filename>R700_rlc.bin</filename> are necessary in addition to the model specific firmware, while for later generations you need the <filename>BTC_rlc.bin</filename> in addition to the model specific firmware.Below is an example for a Radeon HD6470 which is a "Northern Islands" GPU, plus an RTL network chip that also requests extra firmware: