"The preparations will be the same as usual," Johnson told TheFA.com. "We've got a game on Sunday against West Brom so we've got to enjoy the win and then we'll look forward to that game before the final.
"We need to take every game as it comes and we've got a few more games before then. It's going to be there in the back of people's minds (the FA Cup final).
"Hopefully we can pick up another trophy."