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dsa: mv88x6xxx: Zero statistics counters

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Zero the statistics counters when setting up the global
registers. Otherwise the counters will remain from the last boot if
the power has not been removed.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Andrew Lunn 2015-06-20 21:31:29 +02:00 committed by David S. Miller
parent 824831fadc
commit db687a56e4
1 changed files with 6 additions and 0 deletions
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6
drivers/net/dsa/mv88e6xxx.c
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@ -2005,6 +2005,12 @@ int mv88e6xxx_setup_global(struct dsa_switch *ds)
0x9000 | (i << 8));
}
/* Clear the statistics counters for all ports */
REG_WRITE(REG_GLOBAL, GLOBAL_STATS_OP, GLOBAL_STATS_OP_FLUSH_ALL);
/* Wait for the flush to complete. */
_mv88e6xxx_stats_wait(ds);
return 0;
}