Commit 7cdee28c authored Jun 03, 2020 by Roelof Berg Committed by David S. Miller Jun 04, 2020

lan743x: Use correct MAC_CR configuration for 1 GBit speed



Corrected the MAC_CR configuration bits for 1 GBit operation. The data
sheet allows MAC_CR(2:1) to be 10 and also 11 for 1 GBit/s speed, but
only 10 works correctly.

Devices tested:
Microchip Lan7431, fixed-phy mode
Microchip Lan7430, normal phy mode

Fixes: 6f197fb6 ("lan743x: Added fixed link and RGMII support")
Signed-off-by: Roelof Berg <rberg@berg-solutions.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 09820ce8

drivers/net/ethernet/microchip/lan743x_main.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -985,7 +985,7 @@ static void lan743x_phy_link_status_change(struct net_device *netdev)
		break;
		case SPEED_1000:
		data \|= MAC_CR_CFG_H_;
		data \|= MAC_CR_CFG_L_;
		data &= ~MAC_CR_CFG_L_;
		break;
		}
		lan743x_csr_write(adapter, MAC_CR, data);

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