From: Arnaldo Carvalho de Melo Date: Fri, 27 Jan 2006 03:01:38 +0000 (-0500) Subject: sundance: Really read addr 0 X-Git-Tag: v2.6.17-rc1~1186^2~60^2 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0d615ec2bb1cb8c38087bb24f6d2876dec3a9751;p=linux-2.6 sundance: Really read addr 0 Make phy 0 actually be read, as it is not being right now as we have: int mii_status = mdio_read(dev, phy, MII_BMSR); int phyx = phy & 0x1f; When we should have instead: int phyx = phy & 0x1f; int mii_status = mdio_read(dev, phyx, MII_BMSR); so that when phy, in the end of the (phy = 1; phy <= 32...) loop gets to 32 phyx gets to 0, i.e. we were reading at 32, when the intended read was for 0. Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: Jeff Garzik --- diff --git a/drivers/net/sundance.c b/drivers/net/sundance.c index 0ab9c38b4a..8cdeb5cbab 100644 --- a/drivers/net/sundance.c +++ b/drivers/net/sundance.c @@ -633,9 +633,13 @@ static int __devinit sundance_probe1 (struct pci_dev *pdev, np->phys[0] = 1; /* Default setting */ np->mii_preamble_required++; + /* + * It seems some phys doesn't deal well with address 0 being accessed + * first, so leave address zero to the end of the loop (32 & 31). + */ for (phy = 1; phy <= 32 && phy_idx < MII_CNT; phy++) { - int mii_status = mdio_read(dev, phy, MII_BMSR); int phyx = phy & 0x1f; + int mii_status = mdio_read(dev, phyx, MII_BMSR); if (mii_status != 0xffff && mii_status != 0x0000) { np->phys[phy_idx++] = phyx; np->mii_if.advertising = mdio_read(dev, phyx, MII_ADVERTISE);