ppc4xx: Initial framework of the AMCC PPC460SX redwood reference board.

Add AMCC Redwood reference board that uses the latest
PPC 464 CPU processor combined with a rich mix of peripheral
controllers. The board will support PCIe, mutiple Gig ethernet
ports, advanced hardware RAID assistance and IEEE 1588.

Signed-off-by: Feng Kan <fkan@amcc.com>
Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/MAINTAINERS b/MAINTAINERS
index a3d70b1..a4637fd 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -420,6 +420,9 @@
 
 	linkstation		MPC8241
 
+Feng Kan <fkan@amcc.com>
+
+	redwood			PPC4xx
 -------------------------------------------------------------------------
 
 Unknown / orphaned boards: