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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>
This commit is contained in:
Christian Ruppert 2013-04-09 21:56:04 +00:00 committed by David S. Miller
parent b6a5a7b9a5
commit 7078b98422
1 changed files with 1 additions and 0 deletions
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1
drivers/net/ethernet/stmicro/stmmac/mmc_core.c
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@ -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).