[SERIAL] AMD Alchemy UART: claim memory range

I've noticed that the 8250/Au1x00 driver (drivers/serial/8250_au1x00.c)
doesn't claim UART memory ranges and uses wrong (KSEG1-based) UART
addresses instead of the physical ones.

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/drivers/serial/8250_au1x00.c b/drivers/serial/8250_au1x00.c
index 3d1bfd0..58015fd 100644
--- a/drivers/serial/8250_au1x00.c
+++ b/drivers/serial/8250_au1x00.c
@@ -30,13 +30,12 @@
 	{						\
 		.iobase		= _base,		\
 		.membase	= (void __iomem *)_base,\
-		.mapbase	= _base,		\
+		.mapbase	= CPHYSADDR(_base),	\
 		.irq		= _irq,			\
 		.uartclk	= 0,	/* filled */	\
 		.regshift	= 2,			\
 		.iotype		= UPIO_AU,		\
-		.flags		= UPF_SKIP_TEST | 	\
-				  UPF_IOREMAP,		\
+		.flags		= UPF_SKIP_TEST 	\
 	}
 
 static struct plat_serial8250_port au1x00_data[] = {