tg3: Limit CLKREQ fix to A[01] of 57780 asic rev

This patch restricts the CLKREQ bugfix to the A0 and A1 revisions
of 57780 ASIC rev chips.

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

2 files changed, 4 insertions, 1 deletions

diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index c5c3d2853144..0501fb48a004 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -11992,7 +11992,8 @@ static int __devinit tg3_get_invariants(struct tg3 *tp)
                                 tp->tg3_flags2 &= ~TG3_FLG2_HW_TSO_2;
                         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
                             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761 ||
-                            GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
+                            tp->pci_chip_rev_id == CHIPREV_ID_57780_A0 ||
+                            tp->pci_chip_rev_id == CHIPREV_ID_57780_A1)
                                 tp->tg3_flags3 |= TG3_FLG3_CLKREQ_BUG;
                 }
         } else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785) {
diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h
index f1016cb1a89a..b3347c41a1a3 100644
--- a/drivers/net/tg3.h
+++ b/drivers/net/tg3.h
@@ -95,6 +95,8 @@
 #define  CHIPREV_ID_5752_A1              0x6001
 #define  CHIPREV_ID_5714_A2              0x9002
 #define  CHIPREV_ID_5906_A1              0xc001
+#define  CHIPREV_ID_57780_A0             0x57780000
+#define  CHIPREV_ID_57780_A1             0x57780001
 #define  GET_ASIC_REV(CHIP_REV_ID)      ((CHIP_REV_ID) >> 12)
 #define   ASIC_REV_5700                  0x07
 #define   ASIC_REV_5701                  0x00