According to datasheet, the command opcode must be specified
into bits [14:12] of the Extended Port Control register (EPC).

Signed-off-by: Marco Migliore <m.migliore@tiesse.com>
---
 drivers/net/dsa/mv88e6xxx/port.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/dsa/mv88e6xxx/port.h b/drivers/net/dsa/mv88e6xxx/port.h
index aec9d4fd20e3..d19b6303b91f 100644
--- a/drivers/net/dsa/mv88e6xxx/port.h
+++ b/drivers/net/dsa/mv88e6xxx/port.h
@@ -276,7 +276,7 @@
 /* Offset 0x10: Extended Port Control Command */
 #define MV88E6393X_PORT_EPC_CMD		0x10
 #define MV88E6393X_PORT_EPC_CMD_BUSY	0x8000
-#define MV88E6393X_PORT_EPC_CMD_WRITE	0x0300
+#define MV88E6393X_PORT_EPC_CMD_WRITE	0x3000
 #define MV88E6393X_PORT_EPC_INDEX_PORT_ETYPE	0x02
 
 /* Offset 0x11: Extended Port Control Data */
-- 
2.34.1

On Tue, May 16, 2023 at 12:09:18AM +0200, Marco Migliore wrote:
> According to datasheet, the command opcode must be specified
> into bits [14:12] of the Extended Port Control register (EPC).
> 
> Signed-off-by: Marco Migliore <m.migliore@tiesse.com>

Hi Marco

Please read the netdev FAQ:

https://www.kernel.org/doc/html/latest/process/maintainer-netdev.html#netdev-faq

Please add a Fixes: tag, to indicate the patch which introduced the
problem and needs fixing. Also, set the subject to indicate this is
for the net tree.

Thanks
	Andrew