diff options
| author | Richard Zhao <richard.zhao@freescale.com> | 2011-11-16 17:15:13 +0800 |
|---|---|---|
| committer | Eric Miao <eric.miao@canonical.com> | 2011-12-05 14:39:20 +0800 |
| commit | add9d3bec56f5a43736f368d36af4f42c34f52a0 (patch) | |
| tree | f4b48d82a11366b2e7b9bc4e82ea60aa41ef5ec7 | |
| parent | 1cc4f638d93351b006d1b7e0fa99d8253334f8f6 (diff) | |
net: fec: add ksz9021_phy_fixup
For imx6q sabrelite board, set phy RGMII pad skew.
Signed-off-by: Richard Zhao <richard.zhao@freescale.com>
| -rw-r--r-- | drivers/net/ethernet/freescale/fec.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/net/ethernet/freescale/fec.c b/drivers/net/ethernet/freescale/fec.c index 9dead08b634..d2bec4342d2 100644 --- a/drivers/net/ethernet/freescale/fec.c +++ b/drivers/net/ethernet/freescale/fec.c @@ -1509,6 +1509,24 @@ static inline void fec_reset_phy(struct platform_device *pdev) } #endif /* CONFIG_OF */ +/* For imx6q sabrelite board: set KSZ9021 skew */ +static int ksz9021_phy_fixup(struct phy_device *phydev) +{ + /* prefer master mode, 1000 Base-T capable */ + phy_write(phydev, 0x9, 0x0f00); + + /* min rx data delay */ + phy_write(phydev, 0x0b, 0x8105); + phy_write(phydev, 0x0c, 0x0000); + + /* max rx/tx clock delay, min rx/tx control delay */ + phy_write(phydev, 0x0b, 0x8104); + phy_write(phydev, 0x0c, 0xf0f0); + phy_write(phydev, 0x0b, 0x104); + + return 0; +} + static int __devinit fec_probe(struct platform_device *pdev) { @@ -1591,6 +1609,10 @@ fec_probe(struct platform_device *pdev) if (ret) goto failed_init; + /* register the PHY board fixup (for Micrel KSZ9021) */ + phy_register_fixup_for_uid(0x00221611, 0xfffffff0, + ksz9021_phy_fixup); + ret = fec_enet_mii_init(pdev); if (ret) goto failed_mii_init; |