Index: kernel/genarch/src/drivers/omap/uart.c
===================================================================
--- kernel/genarch/src/drivers/omap/uart.c	(revision ed88c8e9e48e792fdd0df46568e33e36eb624db3)
+++ kernel/genarch/src/drivers/omap/uart.c	(revision 78fd6ef3950e019246df5fcf81cf827e5434fdda)
@@ -88,5 +88,6 @@
 {
 	assert(uart);
-	uart->regs = (void *)km_map(addr, size, PAGE_NOT_CACHEABLE);
+	uart->regs = (void *)km_map(addr, size, KM_NATURAL_ALIGNMENT,
+	    PAGE_NOT_CACHEABLE);
 
 	assert(uart->regs);