diff options
Diffstat (limited to 'drivers/net/ethernet/renesas/ravb_main.c')
| -rw-r--r-- | drivers/net/ethernet/renesas/ravb_main.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index 4f648394e645..9618c4881c83 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -1969,6 +1969,13 @@ static void ravb_set_config_mode(struct net_device *ndev) } } +static const struct soc_device_attribute ravb_delay_mode_quirk_match[] = { + { .soc_id = "r8a774c0" }, + { .soc_id = "r8a77990" }, + { .soc_id = "r8a77995" }, + { /* sentinel */ } +}; + /* Set tx and rx clock internal delay modes */ static void ravb_set_delay_mode(struct net_device *ndev) { @@ -1980,8 +1987,12 @@ static void ravb_set_delay_mode(struct net_device *ndev) set |= APSR_DM_RDM; if (priv->phy_interface == PHY_INTERFACE_MODE_RGMII_ID || - priv->phy_interface == PHY_INTERFACE_MODE_RGMII_TXID) - set |= APSR_DM_TDM; + priv->phy_interface == PHY_INTERFACE_MODE_RGMII_TXID) { + if (!WARN(soc_device_match(ravb_delay_mode_quirk_match), + "phy-mode %s requires TX clock internal delay mode which is not supported by this hardware revision. Please update device tree", + phy_modes(priv->phy_interface))) + set |= APSR_DM_TDM; + } ravb_modify(ndev, APSR, APSR_DM, set); } |