mv643xx_eth: inter-mv643xx SMI port sharing

There exist chips with up to four mv643xx_eth silicon blocks but
only one external SMI (MII management) interface -- the SMI logic
of the first block is shared by all the blocks.

Handle this by allowing a per-port override of which
mv643xx_eth_shared's SMI registers (and spinlock) to use.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Acked-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: Dale Farnsworth <dale@farnsworth.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/linux/mv643xx_eth.h b/include/linux/mv643xx_eth.h
index 66dc9571922a..a15cdd4a8e58 100644
--- a/include/linux/mv643xx_eth.h
+++ b/include/linux/mv643xx_eth.h
@@ -24,6 +24,8 @@ struct mv643xx_eth_platform_data {
         struct platform_device  *shared;
         int             port_number;
 
+        struct platform_device  *shared_smi;
+
         u16             force_phy_addr; /* force override if phy_addr == 0 */
         u16             phy_addr;