The 88E1518 code is programming the wrong registers for rgmii-id, rgmii-txid and rgmii-rxid interfaces.

Since the PHY defaults to rgmii-id, it would appear that the code was previously only used with sgmii and rgmii-id interfaces.

Tested on 88E1512 PHY in rgmii-id mode which is from the same family as 88E1518.

Signed-off-by: Phil Edworthy phil.edworthy@renesas.com --- drivers/net/phy/marvell.c | 45 ++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 44 insertions(+), 1 deletion(-)

diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c index ab0c443..8041922 100644 --- a/drivers/net/phy/marvell.c +++ b/drivers/net/phy/marvell.c @@ -13,6 +13,8 @@

#define PHY_AUTONEGOTIATE_TIMEOUT 5000

+#define MII_MARVELL_PHY_PAGE 22 + /* 88E1011 PHY Status Register */ #define MIIM_88E1xxx_PHY_STATUS 0x11 #define MIIM_88E1xxx_PHYSTAT_SPEED 0xc000 @@ -83,6 +85,11 @@ #define MIIM_88E1310_PHY_PAGE 22

/* 88E151x PHY defines */ +/* Page 2 registers */ +#define MIIM_88E151x_PHY_MSCR 21 +#define MIIM_88E151x_RGMII_RX_DELAY BIT(5) +#define MIIM_88E151x_RGMII_TX_DELAY BIT(4) +#define MIIM_88E151x_RGMII_RXTX_DELAY (BIT(5) | BIT(4)) /* Page 3 registers */ #define MIIM_88E151x_LED_FUNC_CTRL 16 #define MIIM_88E151x_LED_FLD_SZ 4 @@ -295,6 +302,8 @@ void m88e1518_phy_writebits(struct phy_device *phydev,

static int m88e1518_config(struct phy_device *phydev) { + u16 reg; + /* * As per Marvell Release Notes - Alaska 88E1510/88E1518/88E1512 * /88E1514 Rev A0, Errata Section 3.1 @@ -331,7 +340,41 @@ static int m88e1518_config(struct phy_device *phydev) udelay(100); }

- return m88e1111s_config(phydev); + if (phydev->interface == PHY_INTERFACE_MODE_SGMII) { + reg = phy_read(phydev, MDIO_DEVAD_NONE, + MIIM_88E1111_PHY_EXT_SR); + + reg &= ~(MIIM_88E1111_HWCFG_MODE_MASK); + reg |= MIIM_88E1111_HWCFG_MODE_SGMII_NO_CLK; + reg |= MIIM_88E1111_HWCFG_FIBER_COPPER_AUTO; + + phy_write(phydev, MDIO_DEVAD_NONE, + MIIM_88E1111_PHY_EXT_SR, reg); + } + + if (phy_interface_is_rgmii(phydev)) { + phy_write(phydev, MDIO_DEVAD_NONE, MII_MARVELL_PHY_PAGE, 2); + + reg = phy_read(phydev, MDIO_DEVAD_NONE, MIIM_88E151x_PHY_MSCR); + reg &= ~MIIM_88E151x_RGMII_RXTX_DELAY; + if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) + reg |= MIIM_88E151x_RGMII_RXTX_DELAY; + else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) + reg |= MIIM_88E151x_RGMII_RX_DELAY; + else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID) + reg |= MIIM_88E151x_RGMII_TX_DELAY; + phy_write(phydev, MDIO_DEVAD_NONE, MIIM_88E151x_PHY_MSCR, reg); + + phy_write(phydev, MDIO_DEVAD_NONE, MII_MARVELL_PHY_PAGE, 0); + } + + /* soft reset */ + phy_reset(phydev); + + genphy_config_aneg(phydev); + genphy_restart_aneg(phydev); + + return 0; }

/* Marvell 88E1510 */