net: phy: Adding SGMII support for Marvell 88ee1145 driver
Additional code to m88e1145_config_init function to allow the driver to
support SGMII mode.
Signed-off-by: Viet Nga Dao <vndao@altera.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c
index d2b2f2f..3e3d7ca 100644
--- a/drivers/net/phy/marvell.c
+++ b/drivers/net/phy/marvell.c
@@ -50,9 +50,13 @@
#define MII_M1011_PHY_SCR 0x10
#define MII_M1011_PHY_SCR_AUTO_CROSS 0x0060
+#define MII_M1145_PHY_EXT_SR 0x1b
#define MII_M1145_PHY_EXT_CR 0x14
#define MII_M1145_RGMII_RX_DELAY 0x0080
#define MII_M1145_RGMII_TX_DELAY 0x0002
+#define MII_M1145_HWCFG_MODE_SGMII_NO_CLK 0x4
+#define MII_M1145_HWCFG_MODE_MASK 0xf
+#define MII_M1145_HWCFG_FIBER_COPPER_AUTO 0x8000
#define MII_M1111_PHY_LED_CONTROL 0x18
#define MII_M1111_PHY_LED_DIRECT 0x4100
@@ -642,6 +646,7 @@
static int m88e1145_config_init(struct phy_device *phydev)
{
int err;
+ int temp;
/* Take care of errata E0 & E1 */
err = phy_write(phydev, 0x1d, 0x001b);
@@ -698,6 +703,20 @@
}
}
+ if (phydev->interface == PHY_INTERFACE_MODE_SGMII) {
+ temp = phy_read(phydev, MII_M1145_PHY_EXT_SR);
+ if (temp < 0)
+ return temp;
+
+ temp &= ~(MII_M1145_HWCFG_MODE_MASK);
+ temp |= MII_M1145_HWCFG_MODE_SGMII_NO_CLK;
+ temp |= MII_M1145_HWCFG_FIBER_COPPER_AUTO;
+
+ err = phy_write(phydev, MII_M1145_PHY_EXT_SR, temp);
+ if (err < 0)
+ return err;
+ }
+
err = marvell_of_reg_init(phydev);
if (err < 0)
return err;