/*
* Generic PHY Management code
*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- *
+ * SPDX-License-Identifier: GPL-2.0+
*
* Copyright 2011 Freescale Semiconductor, Inc.
* author Andy Fleming
int mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMSR);
/* We're using autonegotiation */
- if (mii_reg & BMSR_ANEGCAPABLE) {
+ if (phydev->supported & SUPPORTED_Autoneg) {
u32 lpa = 0;
- u32 gblpa = 0;
+ int gblpa = 0;
u32 estatus = 0;
/* Check for gigabit capability */
- if (mii_reg & BMSR_ERCAP) {
+ if (phydev->supported & (SUPPORTED_1000baseT_Full |
+ SUPPORTED_1000baseT_Half)) {
/* We want a list of states supported by
* both PHYs in the link
*/
gblpa = phy_read(phydev, MDIO_DEVAD_NONE, MII_STAT1000);
+ if (gblpa < 0) {
+ debug("Could not read MII_STAT1000. Ignoring gigabit capability\n");
+ gblpa = 0;
+ }
gblpa &= phy_read(phydev,
MDIO_DEVAD_NONE, MII_CTRL1000) << 2;
}
} else if (lpa & LPA_10FULL)
phydev->duplex = DUPLEX_FULL;
- if (mii_reg & BMSR_ESTATEN)
+ /*
+ * Extended status may indicate that the PHY supports
+ * 1000BASE-T/X even though the 1000BASE-T registers
+ * are missing. In this case we can't tell whether the
+ * peer also supports it, so we only check extended
+ * status if the 1000BASE-T registers are actually
+ * missing.
+ */
+ if ((mii_reg & BMSR_ESTATEN) && !(mii_reg & BMSR_ERCAP))
estatus = phy_read(phydev, MDIO_DEVAD_NONE,
MII_ESTATUS);
if (val & ESTATUS_1000_XFULL)
features |= SUPPORTED_1000baseX_Full;
if (val & ESTATUS_1000_XHALF)
- features |= SUPPORTED_1000baseX_Full;
+ features |= SUPPORTED_1000baseX_Half;
}
phydev->supported = features;