From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by casper.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jCJKY-000827-F4 for barebox@lists.infradead.org; Thu, 12 Mar 2020 08:36:40 +0000 From: Sascha Hauer Date: Thu, 12 Mar 2020 09:35:37 +0100 Message-Id: <20200312083555.10793-2-s.hauer@pengutronix.de> In-Reply-To: <20200312083555.10793-1-s.hauer@pengutronix.de> References: <20200312083555.10793-1-s.hauer@pengutronix.de> MIME-Version: 1.0 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: [PATCH 01/19] net: fec_imx: Do not clear MII interrupt during receive To: Barebox List Cc: Edmund Henniges , =?UTF-8?q?Daniel=20Gl=C3=B6ckner?= fec_recv() can be triggered during a MDIO access. so we may not clear the FEC_IEVENT_MII interrupt the MDIO access is waiting for. Clearing it in that moment causes the MDIO access to timeout. Signed-off-by: Sascha Hauer --- drivers/net/fec_imx.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/fec_imx.c b/drivers/net/fec_imx.c index 5ef1d4359e..f814b3b960 100644 --- a/drivers/net/fec_imx.c +++ b/drivers/net/fec_imx.c @@ -514,6 +514,7 @@ static int fec_recv(struct eth_device *dev) * Check if any critical events have happened */ ievent = readl(fec->regs + FEC_IEVENT); + ievent &= ~FEC_IEVENT_MII; writel(ievent, fec->regs + FEC_IEVENT); if (ievent & FEC_IEVENT_BABT) { -- 2.25.1 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox