[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>

2 files changed, 8 insertions, 0 deletions

diff --git a/drivers/net/ixp2000/pm3386.c b/drivers/net/ixp2000/pm3386.c
index 267b6bd5f79f..870b486f5dea 100644
--- a/drivers/net/ixp2000/pm3386.c
+++ b/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;
diff --git a/drivers/net/ixp2000/pm3386.h b/drivers/net/ixp2000/pm3386.h
index 55ecb1834219..117f50afcdea 100644
--- a/drivers/net/ixp2000/pm3386.h
+++ b/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);