net: fec: Adjust ENET MDIO timeouts
commitc3b084c24c8a372026d95497dbb0da22c6eb591c
authorRogerio Pimentel <rogerio.pimentel@freescale.com>
Tue, 27 Dec 2011 19:07:37 +0000 (27 14:07 -0500)
committerDavid S. Miller <davem@davemloft.net>
Wed, 28 Dec 2011 17:55:18 +0000 (28 12:55 -0500)
tree33beb0fbcef5cbfff012929b87b242afcfa4821f
parentc0d2b8376ae2d74aa862e946a372502603e9066d
net: fec: Adjust ENET MDIO timeouts

On extensive NFS boots on a mx6qsabrelite board it was noted that "FEC: MDIO read timeout" were occuring,
which caused failure on loading the FEC driver.

The original FEC_MII_TIMEOUT was set to 1 ms, which is too low when passed to the usecs_to_jiffies macro.

On ARM one jiffy is 10ms, so use a timeout of 30ms, which corresponds to 3 jiffies.

After running extensive NFS boots, the MDIO timeouts do not occur anymore with this change.

Signed-off-by: Rogerio Pimentel <rogerio.pimentel@freescale.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/freescale/fec.c