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net: phy: dp83869: Set opmode from straps

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If the op-mode for the device is not set in the device tree then set
the strapped op-mode and store it for later configuration.

Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Dan Murphy 2020-05-21 12:47:38 -05:00 committed by David S. Miller
parent c4566aec6e
commit 0eaf8ccf20
1 changed files with 20 additions and 1 deletions
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21
drivers/net/phy/dp83869.c
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@ -65,6 +65,7 @@
#define DP83869_RGMII_RX_CLK_DELAY_EN BIT(0)
/* STRAP_STS1 bits */
#define DP83869_STRAP_OP_MODE_MASK GENMASK(2, 0)
#define DP83869_STRAP_STS1_RESERVED BIT(11)
#define DP83869_STRAP_MIRROR_ENABLED BIT(12)
@ -161,6 +162,20 @@ static int dp83869_config_port_mirroring(struct phy_device *phydev)
DP83869_CFG3_PORT_MIRROR_EN);
}
static int dp83869_set_strapped_mode(struct phy_device *phydev)
{
struct dp83869_private *dp83869 = phydev->priv;
int val;
val = phy_read_mmd(phydev, DP83869_DEVADDR, DP83869_STRAP_STS1);
if (val < 0)
return val;
dp83869->mode = val & DP83869_STRAP_OP_MODE_MASK;
return 0;
}
#ifdef CONFIG_OF_MDIO
static int dp83869_of_init(struct phy_device *phydev)
{
@ -185,6 +200,10 @@ static int dp83869_of_init(struct phy_device *phydev)
if (dp83869->mode < DP83869_RGMII_COPPER_ETHERNET ||
dp83869->mode > DP83869_SGMII_COPPER_ETHERNET)
return -EINVAL;
} else {
ret = dp83869_set_strapped_mode(phydev);
if (ret)
return ret;
}
if (of_property_read_bool(of_node, "ti,max-output-impedance"))
@ -218,7 +237,7 @@ static int dp83869_of_init(struct phy_device *phydev)
#else
static int dp83869_of_init(struct phy_device *phydev)
{
return 0;
return dp83869_set_strapped_mode(phydev);
}
#endif /* CONFIG_OF_MDIO */