[PATCH] pm3386: add hook for setting MAC address

When we reset the pm3386, it loses its internally stored MAC addresses
that were programmed into it by the bootloader (and are used by the
hardware for the generation of PAUSE frames.)  Add a hook to allow
setting these addresses so that we can program them back by hand.
Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>

drivers/net/ixp2000/pm3386.c

@@ -215,6 +215,13 @@ void pm3386_get_mac(int port, u8 *mac)
 	mac[5] = (temp >> 8) & 0xff;
 }
 
+void pm3386_set_mac(int port, u8 *mac)
+{
+	pm3386_port_reg_write(port, 0x308, 0x100, (mac[1] << 8) | mac[0]);
+	pm3386_port_reg_write(port, 0x309, 0x100, (mac[3] << 8) | mac[2]);
+	pm3386_port_reg_write(port, 0x30a, 0x100, (mac[5] << 8) | mac[4]);
+}
+
 static u32 pm3386_get_stat(int port, u16 base)
 {
 	u32 value;

drivers/net/ixp2000/pm3386.h

@@ -15,6 +15,7 @@
 void pm3386_reset(void);
 void pm3386_init_port(int port);
 void pm3386_get_mac(int port, u8 *mac);
+void pm3386_set_mac(int port, u8 *mac);
 void pm3386_get_stats(int port, struct net_device_stats *stats);
 int pm3386_is_link_up(int port);
 void pm3386_enable_rx(int port);