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authorChristian Ruppert <christian.ruppert@abilis.com>2013-04-09 21:56:04 +0000
committerDavid S. Miller <davem@davemloft.net>2013-04-11 16:03:22 -0400
commit7078b984223e0e0e17ecbf32bd05ef1a927c2788 (patch)
tree32b9883747645a3107d49b4a98cf3c46e6523fac /drivers/net
parentb6a5a7b9a528a8b4c8bec940b607c5dd9102b8cc (diff)
downloadlinux-7078b984223e0e0e17ecbf32bd05ef1a927c2788.tar.gz
stmmac: prevent interrupt loop with MMC RX IPC Counter
If the DesignWare MAC is synthesised with MMC RX IPC Counter, an unmanaged and unacknowledged interrupt is generated after some time of operation. This patch masks the undesired interrupts. Signed-off-by: Christian Ruppert <christian.ruppert@abilis.com> Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/ethernet/stmicro/stmmac/mmc_core.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/mmc_core.c b/drivers/net/ethernet/stmicro/stmmac/mmc_core.c
index 0c74a702d46..50617c5a0bd 100644
--- a/drivers/net/ethernet/stmicro/stmmac/mmc_core.c
+++ b/drivers/net/ethernet/stmicro/stmmac/mmc_core.c
@@ -149,6 +149,7 @@ void dwmac_mmc_intr_all_mask(void __iomem *ioaddr)
{
writel(MMC_DEFAULT_MASK, ioaddr + MMC_RX_INTR_MASK);
writel(MMC_DEFAULT_MASK, ioaddr + MMC_TX_INTR_MASK);
+ writel(MMC_DEFAULT_MASK, ioaddr + MMC_RX_IPC_INTR_MASK);
}
/* This reads the MAC core counters (if actaully supported).