[PATCH 1/5] lan78xx: check device ready bit (PMT_CTL_READY_) after reset phy
DORMANTno replies
From: Woojung.Huh@microchip.com
Date: 2015-09-10 20:48:39
Subsystem:
networking drivers, the rest, usb lan78xx ethernet driver, usb networking drivers · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds, Thangaraj Samynathan
Check device ready bit (PMT_CTL_READY_) after reset the PHY. Device may not be ready even if PHY_RST_ is cleared depends on configuration. Signed-off-by: Woojung Huh <woojung.huh@microchip.com> --- drivers/net/usb/lan78xx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c
index a39518f..d0d8790 100644
--- a/drivers/net/usb/lan78xx.c
+++ b/drivers/net/usb/lan78xx.c@@ -2002,7 +2002,7 @@ static int lan78xx_reset(struct lan78xx_net *dev) netdev_warn(dev->net, "timeout waiting for PHY Reset"); return -EIO; } - } while (buf & PMT_CTL_PHY_RST_); + } while ((buf & PMT_CTL_PHY_RST_) || !(buf & PMT_CTL_READY_)); lan78xx_mii_init(dev);
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2.1.4