Hey...
I never found a Tab or Chords of Irie yet, so I decided to make one. 
To do that I listened to a cover on YT and just wrote the chords out of it. 
Its mainly 4 chords so I didn't want to make a big Chord site here 
..so here they just are (from the YT vid by Jakob Royal)

Capo: 8th fret

G
D
Am
C