tg3: Remove dead code

Now that CPMU devices don't do MAC loopback, all the CPMU power saving
mode adjustments are unneeded.  This patch removes the dead code.

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

diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index 6da9c57bcce5dff19fe1b02883ebd959aa7744bf..bb33b3e1fa7a9e643c87c69df0b6df63a6944132 100644 (file)
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -11527,7 +11527,7 @@ out:
 static int tg3_test_loopback(struct tg3 *tp)
 {
        int err = 0;
-       u32 eee_cap, cpmuctrl = 0;
+       u32 eee_cap;
 
        if (!netif_running(tp->dev))
                return TG3_LOOPBACK_FAILED;
@@ -11554,32 +11554,6 @@ static int tg3_test_loopback(struct tg3 *tp)
        if (tp->phy_flags & TG3_PHYFLG_ENABLE_APD)
                tg3_phy_toggle_apd(tp, false);
 
-       if (tg3_flag(tp, CPMU_PRESENT)) {
-               int i;
-               u32 status;
-
-               tw32(TG3_CPMU_MUTEX_REQ, CPMU_MUTEX_REQ_DRIVER);
-
-               /* Wait for up to 40 microseconds to acquire lock. */
-               for (i = 0; i < 4; i++) {
-                       status = tr32(TG3_CPMU_MUTEX_GNT);
-                       if (status == CPMU_MUTEX_GNT_DRIVER)
-                               break;
-                       udelay(10);
-               }
-
-               if (status != CPMU_MUTEX_GNT_DRIVER) {
-                       err = TG3_LOOPBACK_FAILED;
-                       goto done;
-               }
-
-               /* Turn off link-based power management. */
-               cpmuctrl = tr32(TG3_CPMU_CTRL);
-               tw32(TG3_CPMU_CTRL,
-                    cpmuctrl & ~(CPMU_CTRL_LINK_SPEED_MODE |
-                                 CPMU_CTRL_LINK_AWARE_MODE));
-       }
-
        if (tg3_run_loopback(tp, ETH_FRAME_LEN, TG3_MAC_LOOPBACK))
                err |= TG3_STD_LOOPBACK_FAILED << TG3_MAC_LOOPBACK_SHIFT;
 
@@ -11587,13 +11561,6 @@ static int tg3_test_loopback(struct tg3 *tp)
            tg3_run_loopback(tp, 9000 + ETH_HLEN, TG3_MAC_LOOPBACK))
                err |= TG3_JMB_LOOPBACK_FAILED << TG3_MAC_LOOPBACK_SHIFT;
 
-       if (tg3_flag(tp, CPMU_PRESENT)) {
-               tw32(TG3_CPMU_CTRL, cpmuctrl);
-
-               /* Release the mutex */
-               tw32(TG3_CPMU_MUTEX_GNT, CPMU_MUTEX_GNT_DRIVER);
-       }
-
        if (!(tp->phy_flags & TG3_PHYFLG_PHY_SERDES) &&
            !tg3_flag(tp, USE_PHYLIB)) {
                if (tg3_run_loopback(tp, ETH_FRAME_LEN, TG3_PHY_LOOPBACK))