From: Hermann Lauer <Hermann.Lauer@xxxxxxxxxxxxxxxxxxxxx>
Date: Fri, 13 Nov 2009 13:43:50 +0100
> On a SunFire 880 the internal fibre gigabit interface (gem chip,
> an Agilent HDMP-1636A serdes on board) needs to be detected as
> a serdes and not as a seriallink.
>
> The appended experimental patch changes this during detection and
> make the interface working (on top of the patches developed with davem for
> the Sun PCI gigabit fibre interface card).
>
> Please comment and tell if there is a PCI sungem with seriallink and an
> ID of PCI_DEVICE_ID_SUN_GEM(2bad) out there.
It seems there is a special device property that we can use
to detect this properly.
Please try the attached patch on your system, it should fix
the problem too.
Thanks!
sungem: Fix Serdes detection.
We need to look for the 'shared-pins' property to get
this right.
Based upon a patch by Hermann Lauer.
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
---
drivers/net/sungem.c | 10 +++++++++-
1 files changed, 9 insertions(+), 1 deletions(-)
diff --git a/drivers/net/sungem.c b/drivers/net/sungem.c
index 305ec3d..1927b3d 100644
--- a/drivers/net/sungem.c
+++ b/drivers/net/sungem.c
@@ -2062,7 +2062,15 @@ static int gem_check_invariants(struct gem *gp)
mif_cfg &= ~MIF_CFG_PSELECT;
writel(mif_cfg, gp->regs + MIF_CFG);
} else {
- gp->phy_type = phy_serialink;
+#ifdef CONFIG_SPARC
+ const char *p;
+
+ p = of_get_property(gp->of_node, "shared-pins", NULL);
+ if (p && !strcmp(p, "serdes"))
+ gp->phy_type = phy_serdes;
+ else
+#endif
+ gp->phy_type = phy_serialink;
}
if (gp->phy_type == phy_mii_mdio1 ||
gp->phy_type == phy_mii_mdio0) {
--
1.6.5.3
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