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powerpc/fman/memac: use default MDIO_HOLD value 

Current driver uses a Maximum value for MDIO_HOLD when doing 10G MDIO
access, this is due to an errata A-006260 on T4 rev1.0 which is fixed
on rev2.0, so remove the maximum value to use the default value for rev2.0.

Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com>
This commit is contained in:
Shaohui Xie 2014-04-22 18:21:37 +08:00 committed by York Sun
parent e47c2a6851
commit 3a7ed5aa23
1 changed files with 2 additions and 6 deletions
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8
drivers/net/fm/memac_phy.c
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@ -29,10 +29,8 @@ int memac_mdio_write(struct mii_dev *bus, int port_addr, int dev_addr,
c45 = 0; /* clause 22 */
dev_addr = regnum & 0x1f;
clrbits_be32(&regs->mdio_stat, MDIO_STAT_ENC);
} else {
} else
setbits_be32(&regs->mdio_stat, MDIO_STAT_ENC);
setbits_be32(&regs->mdio_stat, MDIO_STAT_HOLD_15_CLK);
}
/* Wait till the bus is free */
while ((in_be32(&regs->mdio_stat)) & MDIO_STAT_BSY)
@ -76,10 +74,8 @@ int memac_mdio_read(struct mii_dev *bus, int port_addr, int dev_addr,
c45 = 0; /* clause 22 */
dev_addr = regnum & 0x1f;
clrbits_be32(&regs->mdio_stat, MDIO_STAT_ENC);
} else {
} else
setbits_be32(&regs->mdio_stat, MDIO_STAT_ENC);
setbits_be32(&regs->mdio_stat, MDIO_STAT_HOLD_15_CLK);
}
/* Wait till the bus is free */
while ((in_be32(&regs->mdio_stat)) & MDIO_STAT_BSY)