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| author |   Steffen Trumtrar <s.trumtrar@pengutronix.de> | 2013-03-27 23:07:05 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2013-03-28 14:41:18 -0400 |
| commit | 749a2b66f49de322ae472d57e1451e5f623d82f1 (patch) | |
| tree | 0c648bb9699acd282f6048841dfdb7e17651c240 /drivers/net/ethernet/cadence | |
| parent | Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-next (diff) | |
| download | linux-dev-749a2b66f49de322ae472d57e1451e5f623d82f1.tar.xz linux-dev-749a2b66f49de322ae472d57e1451e5f623d82f1.zip | |
net/macb: clear tx/rx completion flags in ISR
At least in the cadence IP core on the Xilinx Zynq SoC the TCOMP/RCOMP flags
are not auto-cleaned. As these flags are evaluated, they need to be cleaned.
Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/cadence')
| -rw-r--r-- | drivers/net/ethernet/cadence/macb.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/ethernet/cadence/macb.c b/drivers/net/ethernet/cadence/macb.c index 3a5d680ff8f9..3593c2c594a6 100644 --- a/drivers/net/ethernet/cadence/macb.c +++ b/drivers/net/ethernet/cadence/macb.c @@ -485,6 +485,8 @@ static void macb_tx_interrupt(struct macb *bp) status = macb_readl(bp, TSR); macb_writel(bp, TSR, status); + macb_writel(bp, ISR, MACB_BIT(TCOMP)); + netdev_vdbg(bp->dev, "macb_tx_interrupt status = 0x%03lx\n", (unsigned long)status); @@ -736,6 +738,7 @@ static irqreturn_t macb_interrupt(int irq, void *dev_id) * now. */ macb_writel(bp, IDR, MACB_RX_INT_FLAGS); + macb_writel(bp, ISR, MACB_BIT(RCOMP)); if (napi_schedule_prep(&bp->napi)) { netdev_vdbg(bp->dev, "scheduling RX softirq\n"); |