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| author | Rogerio Pimentel <rogerio.pimentel@freescale.com> | 2011-12-27 14:07:37 -0500 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-12-28 12:55:18 -0500 |
| commit | c3b084c24c8a372026d95497dbb0da22c6eb591c (patch) | |
| tree | 33beb0fbcef5cbfff012929b87b242afcfa4821f | |
| parent | c0d2b8376ae2d74aa862e946a372502603e9066d (diff) | |
| download | linux-3.10-c3b084c24c8a372026d95497dbb0da22c6eb591c.tar.gz linux-3.10-c3b084c24c8a372026d95497dbb0da22c6eb591c.tar.bz2 linux-3.10-c3b084c24c8a372026d95497dbb0da22c6eb591c.zip | |
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>
| -rw-r--r-- | drivers/net/ethernet/freescale/fec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/freescale/fec.c b/drivers/net/ethernet/freescale/fec.c index 4ea2bdc852f..b0b04453c7c 100644 --- a/drivers/net/ethernet/freescale/fec.c +++ b/drivers/net/ethernet/freescale/fec.c @@ -255,7 +255,7 @@ struct fec_enet_private { #define FEC_MMFR_TA (2 << 16) #define FEC_MMFR_DATA(v) (v & 0xffff) -#define FEC_MII_TIMEOUT 1000 /* us */ +#define FEC_MII_TIMEOUT 30000 /* us */ /* Transmitter timeout */ #define TX_TIMEOUT (2 * HZ) |