Commit 68aa0763 authored by Biju Das's avatar Biju Das Committed by David S. Miller

ravb: Add half_duplex to struct ravb_hw_info

RZ/G2L supports half duplex mode.
Add a half_duplex hw feature bit to struct ravb_hw_info for
supporting half duplex mode for RZ/G2L.
Signed-off-by: default avatarBiju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: default avatarSergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent ebd5df06
......@@ -1008,6 +1008,7 @@ struct ravb_hw_info {
unsigned ccc_gac:1; /* AVB-DMAC has gPTP support active in config mode */
unsigned nc_queue:1; /* AVB-DMAC has NC queue */
unsigned magic_pkt:1; /* E-MAC supports magic packet detection */
unsigned half_duplex:1; /* E-MAC supports half duplex mode */
};
struct ravb_private {
......@@ -1062,6 +1063,8 @@ struct ravb_private {
unsigned rgmii_override:1; /* Deprecated rgmii-*id behavior */
unsigned int num_tx_desc; /* TX descriptors per packet */
int duplex;
const struct ravb_hw_info *info;
struct reset_control *rstc;
};
......
......@@ -1091,6 +1091,13 @@ static int ravb_poll(struct napi_struct *napi, int budget)
return budget - quota;
}
static void ravb_set_duplex_gbeth(struct net_device *ndev)
{
struct ravb_private *priv = netdev_priv(ndev);
ravb_modify(ndev, ECMR, ECMR_DM, priv->duplex > 0 ? ECMR_DM : 0);
}
/* PHY state control function */
static void ravb_adjust_link(struct net_device *ndev)
{
......@@ -1107,6 +1114,12 @@ static void ravb_adjust_link(struct net_device *ndev)
ravb_rcv_snd_disable(ndev);
if (phydev->link) {
if (info->half_duplex && phydev->duplex != priv->duplex) {
new_state = true;
priv->duplex = phydev->duplex;
ravb_set_duplex_gbeth(ndev);
}
if (phydev->speed != priv->speed) {
new_state = true;
priv->speed = phydev->speed;
......@@ -1121,6 +1134,8 @@ static void ravb_adjust_link(struct net_device *ndev)
new_state = true;
priv->link = 0;
priv->speed = 0;
if (info->half_duplex)
priv->duplex = -1;
}
/* Enable TX and RX right over here, if E-MAC change is ignored */
......@@ -1143,6 +1158,7 @@ static int ravb_phy_init(struct net_device *ndev)
{
struct device_node *np = ndev->dev.parent->of_node;
struct ravb_private *priv = netdev_priv(ndev);
const struct ravb_hw_info *info = priv->info;
struct phy_device *phydev;
struct device_node *pn;
phy_interface_t iface;
......@@ -1150,6 +1166,7 @@ static int ravb_phy_init(struct net_device *ndev)
priv->link = 0;
priv->speed = 0;
priv->duplex = -1;
/* Try connecting to PHY */
pn = of_parse_phandle(np, "phy-handle", 0);
......@@ -1188,6 +1205,7 @@ static int ravb_phy_init(struct net_device *ndev)
netdev_info(ndev, "limited PHY to 100Mbit/s\n");
}
if (!info->half_duplex) {
/* 10BASE, Pause and Asym Pause is not supported */
phy_remove_link_mode(phydev, ETHTOOL_LINK_MODE_10baseT_Half_BIT);
phy_remove_link_mode(phydev, ETHTOOL_LINK_MODE_10baseT_Full_BIT);
......@@ -1197,6 +1215,7 @@ static int ravb_phy_init(struct net_device *ndev)
/* Half Duplex is not supported */
phy_remove_link_mode(phydev, ETHTOOL_LINK_MODE_1000baseT_Half_BIT);
phy_remove_link_mode(phydev, ETHTOOL_LINK_MODE_100baseT_Half_BIT);
}
phy_attached_info(phydev);
......@@ -2175,6 +2194,7 @@ static const struct ravb_hw_info gbeth_hw_info = {
.tsrq = TCCR_TSRQ0,
.aligned_tx = 1,
.tx_counters = 1,
.half_duplex = 1,
};
static const struct of_device_id ravb_match_table[] = {
......
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