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Commit 7078b984 authored by Christian Ruppert's avatar Christian Ruppert Committed by David S. Miller
Browse files

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: default avatarChristian Ruppert <christian.ruppert@abilis.com>
Acked-by: default avatarGiuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent b6a5a7b9

drivers/net/ethernet/stmicro/stmmac/mmc_core.c

+1 −0
Original line number Original line Diff line number Diff line
@@ -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_RX_INTR_MASK);

	writel(MMC_DEFAULT_MASK, ioaddr + MMC_TX_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).

/* This reads the MAC core counters (if actaully supported).