On 11/05/2013 01:27 AM, Jason Gunthorpe wrote:
Commit cc9d4598 'net: mv643xx_eth: use of_phy_connect if phy_node
present' made the call to phy_scan optional, if the DT has a link to
the phy node.

However phy_scan has the side effect of calling phy_addr_set, which
writes the phy MDIO address to the ethernet controller. If phy_addr_set
is not called, and the bootloader has not set the correct address then
the driver will fail to function.

Tested on Kirkwood.

Signed-off-by: Jason Gunthorpe <jguntho...@obsidianresearch.com>
---

Jason,

thanks for catching this! I do my kirkwood testing on Dockstar,
which has PHY addr 0x0 - also the reset default, which may be
why it slipped through.

Acked-by: Sebastian Hesselbarth <sebastian.hesselba...@gmail.com>

---
  drivers/net/ethernet/marvell/mv643xx_eth.c | 1 +
  1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/marvell/mv643xx_eth.c 
b/drivers/net/ethernet/marvell/mv643xx_eth.c
index 2c210ec..00e43b5 100644
--- a/drivers/net/ethernet/marvell/mv643xx_eth.c
+++ b/drivers/net/ethernet/marvell/mv643xx_eth.c
@@ -2890,6 +2890,7 @@ static int mv643xx_eth_probe(struct platform_device *pdev)
                                         PHY_INTERFACE_MODE_GMII);
                if (!mp->phy)
                        err = -ENODEV;
+               phy_addr_set(mp, mp->phy->addr);
        } else if (pd->phy_addr != MV643XX_ETH_PHY_NONE) {
                mp->phy = phy_scan(mp, pd->phy_addr);



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