1 files changed, 7 insertions, 3 deletions

diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 7892b0034c4f..5d155c50e6e3 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -6929,9 +6929,13 @@ static int tg3_chip_reset(struct tg3 *tp)
         val = GRC_MISC_CFG_CORECLK_RESET;
 
         if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) {
-                if (tr32(0x7e2c) == 0x60) {
-                        tw32(0x7e2c, 0x20);
-                }
+                /* Force PCIe 1.0a mode */
+                if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5785 &&
+                    !(tp->tg3_flags3 & TG3_FLG3_5717_PLUS) &&
+                    tr32(TG3_PCIE_PHY_TSTCTL) ==
+                    (TG3_PCIE_PHY_TSTCTL_PCIE10 | TG3_PCIE_PHY_TSTCTL_PSCRAM))
+                        tw32(TG3_PCIE_PHY_TSTCTL, TG3_PCIE_PHY_TSTCTL_PSCRAM);
+
                 if (tp->pci_chip_rev_id != CHIPREV_ID_5750_A0) {
                         tw32(GRC_MISC_CFG, (1 << 29));
                         val |= (1 << 29);