mv643xx_eth: get rid of individual port config extend register bit defines

The port config extend register is never changed at run time.
Document the meaning of the initial value, and delete the defines
for the individual bits in this register.
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Acked-by: Dale Farnsworth <dale@farnsworth.org>

drivers/net/mv643xx_eth.c

@@ -118,17 +118,6 @@ static char mv643xx_driver_version[] = "1.0";
 #define OTHER_MCAST_TABLE(p)		(0x1500 + ((p) << 10))
 #define UNICAST_TABLE(p)		(0x1600 + ((p) << 10))
 
-/* These macros describe Ethernet Port configuration extend reg (Px_cXR) bits*/
-#define CLASSIFY_EN				(1 << 0)
-#define SPAN_BPDU_PACKETS_AS_NORMAL		(0 << 1)
-#define SPAN_BPDU_PACKETS_TO_RX_QUEUE_7		(1 << 1)
-#define PARTITION_DISABLE			(0 << 2)
-#define PARTITION_ENABLE			(1 << 2)
-
-#define PORT_CONFIG_EXTEND_DEFAULT_VALUE		\
-		SPAN_BPDU_PACKETS_AS_NORMAL	|	\
-		PARTITION_DISABLE
-
 /* These macros describe Ethernet Port Sdma configuration reg (SDCR) bits */
 #define RIFB				(1 << 0)
 #define RX_BURST_SIZE_1_64BIT		(0 << 1)
@@ -2208,7 +2197,10 @@ static void eth_port_start(struct net_device *dev)
 	 */
 	wrl(mp, PORT_CONFIG(port_num), 0x00000000);
 
-	wrl(mp, PORT_CONFIG_EXT(port_num), PORT_CONFIG_EXTEND_DEFAULT_VALUE);
+	/*
+	 * Treat BPDUs as normal multicasts, and disable partition mode.
+	 */
+	wrl(mp, PORT_CONFIG_EXT(port_num), 0x00000000);
 
 	pscr = rdl(mp, PORT_SERIAL_CONTROL(port_num));