Why: Not reliable by design - can fail when most needed.
Alternatives exist
Who: NeilBrown <neilb@suse.de>
+
+---------------------------
+
+What: au1x00_uart driver
+When: January 2006
+Why: The 8250 serial driver now has the ability to deal with the differences
+ between the standard 8250 family of UARTs and their slightly strange
+ brother on Alchemy SOCs. The loss of features is not considered an
+ issue.
+Who: Ralf Baechle <ralf@linux-mips.org>