From: Kazuya Mizuguchi <kazuya.mizuguchi...@renesas.com>
AVB-DMAC Receive FIFO Warning interrupt is not enabled, so it is not
necessary to disable the interrupt in ndo_close().
On the other hand, this patch disables the interrupt in ndo_open() to
prevent the possibility that the interrupt is issued by the state that
a boot loader left.
Signed-off-by: Kazuya Mizuguchi <kazuya.mizuguchi...@renesas.com>
Signed-off-by: Yoshihiro Kaneko <ykaneko0...@gmail.com>
---
This patch is based on the master branch of David Miller's networking
tree.
v2 [Yoshihiro Kaneko]
* compile tested only
* As suggested by Sergei Shtylyov
- clear RIC1 in ndo_open() to disable the interrupt regardless of
a left state from a bootloader.
drivers/net/ethernet/renesas/ravb_main.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/renesas/ravb_main.c
b/drivers/net/ethernet/renesas/ravb_main.c
index b69e0c2..5e34a88 100644
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -1228,6 +1228,9 @@ static int ravb_open(struct net_device *ndev)
goto out_free_irq2;
ravb_emac_init(ndev);
+ /* Disable unhandled interrupt */
+ ravb_write(ndev, 0, RIC1);
+
/* Initialise PTP Clock driver */
ravb_ptp_init(ndev, priv->pdev);
@@ -1471,7 +1474,6 @@ static int ravb_close(struct net_device *ndev)
/* Disable interrupts by clearing the interrupt masks. */
ravb_write(ndev, 0, RIC0);
- ravb_write(ndev, 0, RIC1);
ravb_write(ndev, 0, RIC2);
ravb_write(ndev, 0, TIC);
--
1.9.1
--
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