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42 lines
1.1 KiB
42 lines
1.1 KiB
8 years ago
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--- a/drivers/net/phy/at803x.c
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+++ b/drivers/net/phy/at803x.c
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@@ -55,6 +55,10 @@
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#define AT803X_DEBUG_ADDR 0x1D
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#define AT803X_DEBUG_DATA 0x1E
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+#define AT803X_REG_CHIP_CONFIG 0x1f
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+#define AT803X_BT_BX_REG_SEL 0x8000
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+#define AT803X_SGMII_ANEG_EN 0x1000
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+
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#define AT803X_MODE_CFG_MASK 0x0F
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#define AT803X_MODE_CFG_SGMII 0x01
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@@ -295,6 +299,27 @@ static int at803x_config_init(struct phy
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{
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struct at803x_platform_data *pdata;
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int ret;
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+ u32 v;
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+
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+ if (phydev->drv->phy_id == ATH8031_PHY_ID &&
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+ phydev->interface == PHY_INTERFACE_MODE_SGMII)
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+ {
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+ v = phy_read(phydev, AT803X_REG_CHIP_CONFIG);
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+ /* select SGMII/fiber page */
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+ ret = phy_write(phydev, AT803X_REG_CHIP_CONFIG,
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+ v & ~AT803X_BT_BX_REG_SEL);
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+ if (ret)
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+ return ret;
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+ /* enable SGMII autonegotiation */
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+ ret = phy_write(phydev, MII_BMCR, AT803X_SGMII_ANEG_EN);
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+ if (ret)
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+ return ret;
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+ /* select copper page */
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+ ret = phy_write(phydev, AT803X_REG_CHIP_CONFIG,
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+ v | AT803X_BT_BX_REG_SEL);
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+ if (ret)
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+ return ret;
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+ }
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ret = genphy_config_init(phydev);
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if (ret < 0)
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