From: Christian Ruppert <christian.ruppert@abilis.com>
To: Giuseppe CAVALLARO <peppe.cavallaro@st.com>
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
Vineet Gupta <Vineet.Gupta1@synopsys.com>,
Christian Ruppert <christian.ruppert@abilis.com>
Subject: [PATCH v2] Prevent interrupt loop with DWMAC MMC RX IPC Counter
Date: Fri, 15 Feb 2013 15:58:02 +0100 [thread overview]
Message-ID: <1360940282-27211-1-git-send-email-christian.ruppert@abilis.com> (raw)
In-Reply-To: <20130215144815.GA31098@ab42.lan>
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: Christian Ruppert <christian.ruppert@abilis.com>
---
drivers/net/ethernet/stmicro/stmmac/mmc_core.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/mmc_core.c b/drivers/net/ethernet/stmicro/stmmac/mmc_core.c
index 0c74a70..50617c5 100644
--- a/drivers/net/ethernet/stmicro/stmmac/mmc_core.c
+++ b/drivers/net/ethernet/stmicro/stmmac/mmc_core.c
@@ -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_TX_INTR_MASK);
+ writel(MMC_DEFAULT_MASK, ioaddr + MMC_RX_IPC_INTR_MASK);
}
/* This reads the MAC core counters (if actaully supported).
--
1.7.1
next prev parent reply other threads:[~2013-02-15 14:58 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-15 13:15 [PATCH] Prevent interrupt loop with DWMAC MMC RX IPC Counter Christian Ruppert
2013-02-15 13:46 ` Giuseppe CAVALLARO
2013-02-15 14:48 ` Christian Ruppert
2013-02-15 14:58 ` Christian Ruppert [this message]
2013-02-15 15:18 ` [PATCH v2] " Giuseppe CAVALLARO
2013-04-10 7:56 ` [PATCH] stmmac: prevent interrupt loop with " Christian Ruppert
2013-04-11 20:03 ` David Miller
2013-02-15 15:17 ` [PATCH] Prevent interrupt loop with DWMAC " Giuseppe CAVALLARO
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1360940282-27211-1-git-send-email-christian.ruppert@abilis.com \
--to=christian.ruppert@abilis.com \
--cc=Vineet.Gupta1@synopsys.com \
--cc=linux-kernel@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=peppe.cavallaro@st.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).