net/fsl: Make xgmac_mdio read error message useful

Print the device address, the register number and the PHY ID for
which the MDIO read operation failed

Signed-off-by: Shruti Kanetkar <Shruti@Freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Shruti Kanetkar 2014-06-11 13:41:40 -05:00 committed by David S. Miller
parent 6e765a009a
commit 55fd36419c

View File

@ -162,7 +162,9 @@ static int xgmac_mdio_read(struct mii_bus *bus, int phy_id, int regnum)
/* Return all Fs if nothing was there */
if (in_be32(&regs->mdio_stat) & MDIO_STAT_RD_ER) {
dev_err(&bus->dev, "MDIO read error\n");
dev_err(&bus->dev,
"Error while reading PHY%d reg at %d.%d\n",
phy_id, dev_addr, regnum);
return 0xffff;
}