From: Rogerio Pimentel Date: Tue, 27 Dec 2011 19:07:37 +0000 (-0500) Subject: net: fec: Adjust ENET MDIO timeouts X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=c3b084c24c8a372026d95497dbb0da22c6eb591c;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git 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 Signed-off-by: Fabio Estevam Signed-off-by: David S. Miller --- diff --git a/drivers/net/ethernet/freescale/fec.c b/drivers/net/ethernet/freescale/fec.c index 4ea2bdc852f8..b0b04453c7cc 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)