net: stmmac: xgmac: Disable MMC interrupts by default

MMC interrupts were being enabled, which is not what we want because it
will lead to a storm of interrupts that are not handled at all. Fix it
by disabling all MMC interrupts for XGMAC.

Fixes: b6cdf09f51c2 ("net: stmmac: xgmac: Implement MMC counters")
Signed-off-by: Jose Abreu <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

diff --git a/drivers/net/ethernet/stmicro/stmmac/mmc_core.c b/drivers/net/ethernet/stmicro/stmmac/mmc_core.c
index a223584f5f9a67da9ea7492a63c3f57cef08fd40..252cf48c581665ff99276672d840e01e42ff5e77 100644 (file)
--- a/drivers/net/ethernet/stmicro/stmmac/mmc_core.c
+++ b/drivers/net/ethernet/stmicro/stmmac/mmc_core.c
@@ -176,6 +176,7 @@
 #define MMC_XGMAC_RX_PKT_SMD_ERR       0x22c
 #define MMC_XGMAC_RX_PKT_ASSEMBLY_OK   0x230
 #define MMC_XGMAC_RX_FPE_FRAG          0x234
+#define MMC_XGMAC_RX_IPC_INTR_MASK     0x25c
 
 static void dwmac_mmc_ctrl(void __iomem *mmcaddr, unsigned int mode)
 {
@@ -333,8 +334,9 @@ static void dwxgmac_mmc_ctrl(void __iomem *mmcaddr, unsigned int mode)
 
 static void dwxgmac_mmc_intr_all_mask(void __iomem *mmcaddr)
 {
-       writel(MMC_DEFAULT_MASK, mmcaddr + MMC_RX_INTR_MASK);
-       writel(MMC_DEFAULT_MASK, mmcaddr + MMC_TX_INTR_MASK);
+       writel(0x0, mmcaddr + MMC_RX_INTR_MASK);
+       writel(0x0, mmcaddr + MMC_TX_INTR_MASK);
+       writel(MMC_DEFAULT_MASK, mmcaddr + MMC_XGMAC_RX_IPC_INTR_MASK);
 }
 
 static void dwxgmac_read_mmc_reg(void __iomem *addr, u32 reg, u32 *dest)