tg3: Don't touch RCB nic addresses

This patch avoids reprogramming the RCB NIC addresses for all 5755 and
later devices.  The address is incorrect for 5717 devices and should be
correct by default for all other affected devices.

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

1 files changed, 6 insertions, 4 deletions

diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index fc9df25f76b1..e1f4a18ebb81 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -7404,8 +7404,9 @@ static int tg3_reset_hw(struct tg3 *tp, int reset_phy)
              ((u64) tpr->rx_std_mapping >> 32));
         tw32(RCVDBDI_STD_BD + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_LOW,
              ((u64) tpr->rx_std_mapping & 0xffffffff));
-        tw32(RCVDBDI_STD_BD + TG3_BDINFO_NIC_ADDR,
-             NIC_SRAM_RX_BUFFER_DESC);
+        if (!(tp->tg3_flags3 & TG3_FLG3_5755_PLUS))
+                tw32(RCVDBDI_STD_BD + TG3_BDINFO_NIC_ADDR,
+                     NIC_SRAM_RX_BUFFER_DESC);
 
         /* Disable the mini ring */
         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
@@ -7428,8 +7429,9 @@ static int tg3_reset_hw(struct tg3 *tp, int reset_phy)
                         tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_MAXLEN_FLAGS,
                              (RX_JUMBO_MAX_SIZE << BDINFO_FLAGS_MAXLEN_SHIFT) |
                              BDINFO_FLAGS_USE_EXT_RECV);
-                        tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_NIC_ADDR,
-                             NIC_SRAM_RX_JUMBO_BUFFER_DESC);
+                        if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
+                                tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_NIC_ADDR,
+                                     NIC_SRAM_RX_JUMBO_BUFFER_DESC);
                 } else {
                         tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_MAXLEN_FLAGS,
                              BDINFO_FLAGS_DISABLED);