From 6474de5f105c8fc70695661aa68466ac52e05794 Mon Sep 17 00:00:00 2001 From: Kazuya Mizuguchi Date: Tue, 15 Dec 2015 01:24:58 +0900 Subject: [PATCH] ravb: clear RIC1 in init instead of stop AVB-DMAC Receive FIFO Warning interrupt is not enabled, so it is not necessary to disable the interrupt in ravb_close(). On the other hand, this patch disables the interrupt in ravb_dmac_init() to prevent the possibility that the interrupt is issued by the state that a boot loader left. Signed-off-by: Kazuya Mizuguchi Signed-off-by: Yoshihiro Kaneko Acked-by: Sergei Shtylyov Signed-off-by: David S. Miller --- drivers/net/ethernet/renesas/ravb_main.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index 1cf12264861c..120cc2565d16 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -410,9 +410,11 @@ static int ravb_dmac_init(struct net_device *ndev) /* Timestamp enable */ ravb_write(ndev, TCCR_TFEN, TCCR); - /* Interrupt enable: */ + /* Interrupt init: */ /* Frame receive */ ravb_write(ndev, RIC0_FRE0 | RIC0_FRE1, RIC0); + /* Disable FIFO full warning */ + ravb_write(ndev, 0, RIC1); /* Receive FIFO full error, descriptor empty */ ravb_write(ndev, RIC2_QFE0 | RIC2_QFE1 | RIC2_RFFE, RIC2); /* Frame transmitted, timestamp FIFO updated */ @@ -1478,7 +1480,6 @@ 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); -- 2.30.2