1 files changed, 9 insertions, 5 deletions

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 8ea770a89f2..72cd190b9c1 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -781,10 +781,15 @@ static void stmmac_mmc_setup(struct stmmac_priv *priv)
         unsigned int mode = MMC_CNTRL_RESET_ON_READ | MMC_CNTRL_COUNTER_RESET |
                             MMC_CNTRL_PRESET | MMC_CNTRL_FULL_HALF_PRESET;
 
-        /* Do not manage MMC IRQ (FIXME) */
+        /* Mask MMC irq, counters are managed in SW and registers
+         * are cleared on each READ eventually. */
         dwmac_mmc_intr_all_mask(priv->ioaddr);
-        dwmac_mmc_ctrl(priv->ioaddr, mode);
-        memset(&priv->mmc, 0, sizeof(struct stmmac_counters));
+
+        if (priv->dma_cap.rmon) {
+                dwmac_mmc_ctrl(priv->ioaddr, mode);
+                memset(&priv->mmc, 0, sizeof(struct stmmac_counters));
+        } else
+                pr_info(" No MAC Management Counters available");
 }
 
 static u32 stmmac_get_synopsys_id(struct stmmac_priv *priv)
@@ -1012,8 +1017,7 @@ static int stmmac_open(struct net_device *dev)
         memset(&priv->xstats, 0, sizeof(struct stmmac_extra_stats));
         priv->xstats.threshold = tc;
 
-        if (priv->dma_cap.rmon)
-                stmmac_mmc_setup(priv);
+        stmmac_mmc_setup(priv);
 
         /* Start the ball rolling... */
         DBG(probe, DEBUG, "%s: DMA RX/TX processes started...\n", dev->name);