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net/phy: extra delay only for RGMII interfaces for IC+ IP 1001 

The extra delay of 2ns to adjust RX clock phase is actually needed
in RGMII mode. Tested on the HDK7108 (STx7108c2).

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Giuseppe CAVALLARO 2011-10-10 21:37:56 +00:00 committed by David S. Miller
parent 2425717b27
commit a4886d522e
1 changed files with 8 additions and 5 deletions
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7
drivers/net/phy/icplus.c
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@ -128,12 +128,15 @@ static int ip1001_config_init(struct phy_device *phydev)
if (c < 0) if (c < 0)
return c; return c;
if (phydev->interface == PHY_INTERFACE_MODE_RGMII) {
/* Additional delay (2ns) used to adjust RX clock phase /* Additional delay (2ns) used to adjust RX clock phase
* at GMII/ RGMII interface */ * at RGMII interface */
c = phy_read(phydev, IP10XX_SPEC_CTRL_STATUS); c = phy_read(phydev, IP10XX_SPEC_CTRL_STATUS);
c |= IP1001_PHASE_SEL_MASK; c |= IP1001_PHASE_SEL_MASK;
c = phy_write(phydev, IP10XX_SPEC_CTRL_STATUS, c);
}
return phy_write(phydev, IP10XX_SPEC_CTRL_STATUS, c); return c;
} }
static int ip101a_config_init(struct phy_device *phydev) static int ip101a_config_init(struct phy_device *phydev)