diff options
| author | Arseny Solokha <asolokha@kb.kras.ru> | 2019-09-04 20:52:22 +0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-09-05 12:28:15 +0200 |
| commit | 8e578e73ef2ebc49196d5bb36220dc97b53559a1 (patch) | |
| tree | 8279c7e08a17543c71b4e86bd142bb2340cf3139 /drivers/net/ethernet/freescale/gianfar.c | |
| parent | 887b8194fb86811ddd7de9c6218ed1ccf6792ee6 (diff) | |
gianfar: use DT more consistently when selecting PHY connection type
Historically, gianfar only used phy-connection-type DT property when
connected to PHY in the rgmii-id mode. It ignored the property otherwise,
relying on the connection type auto-detection carried out by MAC and
providing that reconstructed mode to of_phy_connect(). It also did not
consider alternative phy-mode property at all.
Make the driver properly query DT node for PHY connection type first and
use an obtained value if it was specified there. Otherwise, if a particular
DT relies on connection type auto-detection, fall back to reconstructing
the value from MAC registers, as before.
Signed-off-by: Arseny Solokha <asolokha@kb.kras.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/freescale/gianfar.c')
| -rw-r--r-- | drivers/net/ethernet/freescale/gianfar.c | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c index 17fb412e4bb4..24bf7f68375f 100644 --- a/drivers/net/ethernet/freescale/gianfar.c +++ b/drivers/net/ethernet/freescale/gianfar.c @@ -639,7 +639,6 @@ static phy_interface_t gfar_get_interface(struct net_device *dev) static int gfar_of_init(struct platform_device *ofdev, struct net_device **pdev) { const char *model; - const char *ctype; const void *mac_addr; int err = 0, i; struct net_device *dev = NULL; @@ -802,13 +801,15 @@ static int gfar_of_init(struct platform_device *ofdev, struct net_device **pdev) FSL_GIANFAR_DEV_HAS_TIMER | FSL_GIANFAR_DEV_HAS_RX_FILER; - err = of_property_read_string(np, "phy-connection-type", &ctype); - - /* We only care about rgmii-id. The rest are autodetected */ - if (err == 0 && !strcmp(ctype, "rgmii-id")) - priv->interface = PHY_INTERFACE_MODE_RGMII_ID; + /* Use PHY connection type from the DT node if one is specified there. + * rgmii-id really needs to be specified. Other types can be + * detected by hardware + */ + err = of_get_phy_mode(np); + if (err >= 0) + priv->interface = err; else - priv->interface = PHY_INTERFACE_MODE_MII; + priv->interface = gfar_get_interface(dev); if (of_find_property(np, "fsl,magic-packet", NULL)) priv->device_flags |= FSL_GIANFAR_DEV_HAS_MAGIC_PACKET; @@ -1670,7 +1671,7 @@ static int init_phy(struct net_device *dev) { __ETHTOOL_DECLARE_LINK_MODE_MASK(mask) = { 0, }; struct gfar_private *priv = netdev_priv(dev); - phy_interface_t interface; + phy_interface_t interface = priv->interface; struct phy_device *phydev; struct ethtool_eee edata; @@ -1686,8 +1687,6 @@ static int init_phy(struct net_device *dev) priv->oldspeed = 0; priv->oldduplex = -1; - interface = gfar_get_interface(dev); - phydev = of_phy_connect(dev, priv->phy_node, &adjust_link, 0, interface); if (!phydev) { |