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net: eth: cpsw: Correctly attach to GPIO bitbang MDIO driver 

When the GPIO bitbang MDIO driver is used instead of the Davinci MDIO driver
we need to configure the phy_id string differently. Otherwise this string
looks like this "gpio.6" instead of "gpio-0" and the PHY is not found when
phy_connect() is called.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Lukas Stockmann <lukas.stockmann@siemens.com>
Cc: Mugunthan V N <mugunthanvnm@ti.com>
Acked-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Stefan Roese 2014-01-29 11:32:37 +01:00 committed by David S. Miller
parent 53d8ab29f8
commit f8d56d8f89
1 changed files with 12 additions and 2 deletions
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14
drivers/net/ethernet/ti/cpsw.c
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@ -1878,8 +1878,18 @@ static int cpsw_probe_dt(struct cpsw_platform_data *data,
mdio_node = of_find_node_by_phandle(be32_to_cpup(parp));
phyid = be32_to_cpup(parp+1);
mdio = of_find_device_by_node(mdio_node);
snprintf(slave_data->phy_id, sizeof(slave_data->phy_id),
PHY_ID_FMT, mdio->name, phyid);
if (strncmp(mdio->name, "gpio", 4) == 0) {
/* GPIO bitbang MDIO driver attached */
struct mii_bus *bus = dev_get_drvdata(&mdio->dev);
snprintf(slave_data->phy_id, sizeof(slave_data->phy_id),
PHY_ID_FMT, bus->id, phyid);
} else {
/* davinci MDIO driver attached */
snprintf(slave_data->phy_id, sizeof(slave_data->phy_id),
PHY_ID_FMT, mdio->name, phyid);
}
mac_addr = of_get_mac_address(slave_node);
if (mac_addr)