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From: Sascha Hauer <s.hauer@pengutronix.de>
To: barebox@lists.infradead.org
Subject: [PATCH 3/4] net phylib: Clear BMCR_PDOWN bit
Date: Sat,  8 Dec 2012 17:58:21 +0100	[thread overview]
Message-ID: <1354985902-11317-4-git-send-email-s.hauer@pengutronix.de> (raw)
In-Reply-To: <1354985902-11317-1-git-send-email-s.hauer@pengutronix.de>

Some phys come up with this bit set, clear it so that these phys
can work. This has been observed with a ASIX compatible USB ethernet
adapter.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 drivers/net/phy/phy.c |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index ed185e1..58546f8 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -443,6 +443,9 @@ int genphy_restart_aneg(struct phy_device *phydev)
 	/* Don't isolate the PHY if we're negotiating */
 	ctl &= ~(BMCR_ISOLATE);
 
+	/* Clear powerdown bit which eventually is set on some phys */
+	ctl &= ~BMCR_PDOWN;
+
 	ctl = phy_write(phydev, MII_BMCR, ctl);
 
 	if (ctl < 0)
-- 
1.7.10.4


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  parent reply	other threads:[~2012-12-08 16:58 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-12-08 16:58 [PATCH] fixes Sascha Hauer
2012-12-08 16:58 ` [PATCH 1/4] ARM startup: Ensure CR_A flag is cleared on architectures >= ARMv6 Sascha Hauer
2012-12-08 16:58 ` [PATCH 2/4] ARM omap3: Call common_reset Sascha Hauer
2012-12-08 16:58 ` Sascha Hauer [this message]
2012-12-08 16:58 ` [PATCH 4/4] net phylib: Call phy_update_status when no link is present Sascha Hauer

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