From: Vladimir Oltean vladimir.oltean@nxp.com
Also take the opportunity to use the phy_read_mmd and phy_write_mmd convenience functions.
Signed-off-by: Vladimir Oltean vladimir.oltean@nxp.com Acked-by: Joe Hershberger joe.hershberger@ni.com --- drivers/net/phy/atheros.c | 19 ++++++++++++++----- 1 file changed, 14 insertions(+), 5 deletions(-)
diff --git a/drivers/net/phy/atheros.c b/drivers/net/phy/atheros.c index c0c2b4db39..1da18eb5d4 100644 --- a/drivers/net/phy/atheros.c +++ b/drivers/net/phy/atheros.c @@ -17,6 +17,15 @@ #define AR803x_DEBUG_REG_0 0x0 #define AR803x_RGMII_RX_CLK_DLY BIT(15)
+/* CLK_25M register is at MMD 7, address 0x8016 */ +#define AR803x_CLK_25M_SEL_REG 0x8016 +/* AR8035: Select frequency on CLK_25M pin through bits 4:3 */ +#define AR8035_CLK_25M_FREQ_25M (0 | 0) +#define AR8035_CLK_25M_FREQ_50M (0 | BIT(3)) +#define AR8035_CLK_25M_FREQ_62M (BIT(4) | 0) +#define AR8035_CLK_25M_FREQ_125M (BIT(4) | BIT(3)) +#define AR8035_CLK_25M_MASK GENMASK(4, 3) + static void ar803x_enable_rx_delay(struct phy_device *phydev, bool on) { int regval; @@ -78,11 +87,11 @@ static int ar8035_config(struct phy_device *phydev) { int regval;
- phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x0007); - phy_write(phydev, MDIO_DEVAD_NONE, 0xe, 0x8016); - phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x4007); - regval = phy_read(phydev, MDIO_DEVAD_NONE, 0xe); - phy_write(phydev, MDIO_DEVAD_NONE, 0xe, (regval|0x0018)); + /* Configure CLK_25M output clock at 125 MHz */ + regval = phy_read_mmd(phydev, MDIO_MMD_AN, AR803x_CLK_25M_SEL_REG); + regval &= ~AR8035_CLK_25M_MASK; /* No surprises */ + regval |= AR8035_CLK_25M_FREQ_125M; + phy_write_mmd(phydev, MDIO_MMD_AN, AR803x_CLK_25M_SEL_REG, regval);
if ((phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) || (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID))