Commit 0a9140cf authored Aug 28, 2009 by Matt Carlson Committed by David S. Miller Aug 29, 2009

tg3: Delay mdio bus init until fw finishes



The device firmware uses the MDIO bus during early setup.  If the driver
modifies the MDIO bus configuration while it is in use by the firmware,
any number of bad things can happen.  This patch delays MDIO setup until
after the firmware posts its magic signature, signifying initialization
is complete.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent b3df9a51

drivers/net/tg3.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -6348,14 +6348,14 @@ static int tg3_chip_reset(struct tg3 *tp)
		tw32_f(MAC_MODE, 0);
		udelay(40);

		tg3_mdio_start(tp);

		tg3_ape_unlock(tp, TG3_APE_LOCK_GRC);

		err = tg3_poll_fw(tp);
		if (err)
		return err;

		tg3_mdio_start(tp);

		if ((tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) &&
		tp->pci_chip_rev_id != CHIPREV_ID_5750_A0) {
		val = tr32(0x7c00);