How long until your trip? You could try to secure an ADR at Akershus for 8:00am, eat and be in the ride line before rope drop.
If not, people are let into the park around 8:30am and you will need to fast track yourself to the Norway Pavilion (from the Mexico side). They won't let you into Norway until 9:00am rope drop and you should try to be at the front of the pack to get a great place in the line. We just went last week and had 8:10am reservations at Akershus. Our table was in view of the open door and we watched people fly by at 9:00am. The wait got up there pretty quickly.
I did a lot of research on beating this line just in case (I ended up with an FP+) and found some helpful blogs. Google "rope drop, frozen ever after", etc.
http://www.disneytouristblog.com/frozen-ever-review-tips/