CPDMA interrupts are not properly acknowledged which leads to interrupt
storm, only cpdma interrupt 0 is acknowledged in Davinci CPDMA driver.
Changed cpdma_ctlr_eoi api to acknowledge 1 and 2 interrupts which are
used for rx and tx respectively.
Reported-by: Pantelis Antoniou <panto@xxxxxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Mugunthan V N <mugunthanvnm@xxxxxx>
---
drivers/net/ethernet/ti/davinci_cpdma.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/net/ethernet/ti/davinci_cpdma.c b/drivers/net/ethernet/ti/davinci_cpdma.c
index f862918..afe14a6 100644
--- a/drivers/net/ethernet/ti/davinci_cpdma.c
+++ b/drivers/net/ethernet/ti/davinci_cpdma.c
@@ -487,6 +487,8 @@ int cpdma_ctlr_int_ctrl(struct cpdma_ctlr *ctlr, bool enable)
void cpdma_ctlr_eoi(struct cpdma_ctlr *ctlr)
{
dma_reg_write(ctlr, CPDMA_MACEOIVECTOR, 0);
+ dma_reg_write(ctlr, CPDMA_MACEOIVECTOR, 1);
+ dma_reg_write(ctlr, CPDMA_MACEOIVECTOR, 2);
}
struct cpdma_chan *cpdma_chan_create(struct cpdma_ctlr *ctlr, int chan_num,
--
1.7.9.5
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