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net: phy: bcm7xxx: introduce r_rc_cal_reset helper

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This function performs a R/RC calibration reset and will start being
used by more than one function in the next patches, create a helper
function to factor code.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Florian Fainelli 2014-11-11 14:55:12 -08:00 committed by David S. Miller
parent 2a9df7425e
commit 9c41f2baa9
1 changed files with 10 additions and 5 deletions
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15
drivers/net/phy/bcm7xxx.c
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@ -69,6 +69,15 @@ static void phy_write_misc(struct phy_device *phydev,
phy_write(phydev, MII_BCM54XX_EXP_DATA, value);
}
static void r_rc_cal_reset(struct phy_device *phydev)
{
/* Reset R_CAL/RC_CAL Engine */
phy_write_exp(phydev, 0x00b0, 0x0010);
/* Disable Reset R_AL/RC_CAL Engine */
phy_write_exp(phydev, 0x00b0, 0x0000);
}
static int bcm7xxx_28nm_b0_afe_config_init(struct phy_device *phydev)
{
/* Increase VCO range to prevent unlocking problem of PLL at low
@ -90,11 +99,7 @@ static int bcm7xxx_28nm_b0_afe_config_init(struct phy_device *phydev)
/* Switch to CORE_BASE1E */
phy_write(phydev, MII_BCM7XXX_CORE_BASE1E, 0xd);
/* Reset R_CAL/RC_CAL Engine */
phy_write_exp(phydev, CORE_EXPB0, 0x0010);
/* Disable Reset R_CAL/RC_CAL Engine */
phy_write_exp(phydev, CORE_EXPB0, 0x0000);
r_rc_cal_reset(phydev);
/* write AFE_RXCONFIG_0 */
phy_write_misc(phydev, AFE_RXCONFIG_0, 0xeb19);