net: phy: bcm7xxx: introduce r_rc_cal_reset helper
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>
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@ -69,6 +69,15 @@ static void phy_write_misc(struct phy_device *phydev,
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phy_write(phydev, MII_BCM54XX_EXP_DATA, value);
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}
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static void r_rc_cal_reset(struct phy_device *phydev)
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{
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/* Reset R_CAL/RC_CAL Engine */
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phy_write_exp(phydev, 0x00b0, 0x0010);
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/* Disable Reset R_AL/RC_CAL Engine */
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phy_write_exp(phydev, 0x00b0, 0x0000);
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}
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static int bcm7xxx_28nm_b0_afe_config_init(struct phy_device *phydev)
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{
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/* Increase VCO range to prevent unlocking problem of PLL at low
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@ -90,11 +99,7 @@ static int bcm7xxx_28nm_b0_afe_config_init(struct phy_device *phydev)
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/* Switch to CORE_BASE1E */
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phy_write(phydev, MII_BCM7XXX_CORE_BASE1E, 0xd);
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/* Reset R_CAL/RC_CAL Engine */
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phy_write_exp(phydev, CORE_EXPB0, 0x0010);
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/* Disable Reset R_CAL/RC_CAL Engine */
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phy_write_exp(phydev, CORE_EXPB0, 0x0000);
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r_rc_cal_reset(phydev);
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/* write AFE_RXCONFIG_0 */
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phy_write_misc(phydev, AFE_RXCONFIG_0, 0xeb19);
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