GRETH: avoid writing bad speed/duplex when setting transfer mode
Signed-off-by: Daniel Hellstrom <daniel@gaisler.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Родитель
b669e7f058
Коммит
2436af8ca7
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@ -1232,29 +1232,26 @@ static void greth_link_change(struct net_device *dev)
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struct greth_private *greth = netdev_priv(dev);
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struct phy_device *phydev = greth->phy;
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unsigned long flags;
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int status_change = 0;
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u32 ctrl;
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spin_lock_irqsave(&greth->devlock, flags);
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if (phydev->link) {
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if ((greth->speed != phydev->speed) || (greth->duplex != phydev->duplex)) {
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GRETH_REGANDIN(greth->regs->control,
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~(GRETH_CTRL_FD | GRETH_CTRL_SP | GRETH_CTRL_GB));
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ctrl = GRETH_REGLOAD(greth->regs->control) &
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~(GRETH_CTRL_FD | GRETH_CTRL_SP | GRETH_CTRL_GB);
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if (phydev->duplex)
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GRETH_REGORIN(greth->regs->control, GRETH_CTRL_FD);
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if (phydev->speed == SPEED_100) {
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GRETH_REGORIN(greth->regs->control, GRETH_CTRL_SP);
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}
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ctrl |= GRETH_CTRL_FD;
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if (phydev->speed == SPEED_100)
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ctrl |= GRETH_CTRL_SP;
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else if (phydev->speed == SPEED_1000)
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GRETH_REGORIN(greth->regs->control, GRETH_CTRL_GB);
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ctrl |= GRETH_CTRL_GB;
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GRETH_REGSAVE(greth->regs->control, ctrl);
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greth->speed = phydev->speed;
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greth->duplex = phydev->duplex;
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status_change = 1;
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