tg3: Fix 57780 asic rev PCIe link receiver errors
This patch fixes some PCIe link receiver errors by decreasing the internal
electrical idle timeout.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Reviewed-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 46a3f86..e8def28 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -6719,6 +6719,11 @@
val |= PCIE_PWR_MGMT_EXT_ASPM_TMR_EN |
PCIE_PWR_MGMT_L1_THRESH_4MS;
tw32(PCIE_PWR_MGMT_THRESH, val);
+
+ val = tr32(TG3_PCIE_EIDLE_DELAY) & ~TG3_PCIE_EIDLE_DELAY_MASK;
+ tw32(TG3_PCIE_EIDLE_DELAY, val | TG3_PCIE_EIDLE_DELAY_13_CLKS);
+
+ tw32(TG3_CORR_ERR_STAT, TG3_CORR_ERR_STAT_CLEAR);
}
/* This works around an issue with Athlon chipsets on