Add support for MII interface.
If user wants to use MII, assign "MII" to "phy-mode" property in dts.
Signed-off-by: Biao Huang <biao.huang@xxxxxxxxxxxx>
Signed-off-by: Yinghua Pan <ot_yinghua.pan@xxxxxxxxxxxx>
---
drivers/net/ethernet/mediatek/mtk_star_emac.c | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/mediatek/mtk_star_emac.c b/drivers/net/ethernet/mediatek/mtk_star_emac.c
index d0fa45007bbd..8625887ea4f3 100644
--- a/drivers/net/ethernet/mediatek/mtk_star_emac.c
+++ b/drivers/net/ethernet/mediatek/mtk_star_emac.c
@@ -192,6 +192,7 @@ static const char *const mtk_star_clk_names[] = { "core", "reg", "trans" };
#define MTK_PERICFG_REG_NIC_CFG1_CON 0x03c8
#define MTK_PERICFG_REG_NIC_CFG_CON_V2 0x0c10
#define MTK_PERICFG_REG_NIC_CFG_CON_CFG_INTF GENMASK(3, 0)
+#define MTK_PERICFG_BIT_NIC_CFG_CON_MII 0
#define MTK_PERICFG_BIT_NIC_CFG_CON_RMII 1
#define MTK_PERICFG_BIT_NIC_CFG_CON_CLK BIT(0)
#define MTK_PERICFG_BIT_NIC_CFG_CON_CLK_V2 BIT(8)
@@ -1462,6 +1463,7 @@ static int mtk_star_set_timing(struct mtk_star_priv *priv)
unsigned int delay_val = 0;
switch (priv->phy_intf) {
+ case PHY_INTERFACE_MODE_MII:
case PHY_INTERFACE_MODE_RMII:
delay_val |= FIELD_PREP(MTK_STAR_BIT_INV_RX_CLK, priv->rx_inv);
delay_val |= FIELD_PREP(MTK_STAR_BIT_INV_TX_CLK, priv->tx_inv);
@@ -1542,7 +1544,8 @@ static int mtk_star_probe(struct platform_device *pdev)
ret = of_get_phy_mode(of_node, &priv->phy_intf);
if (ret) {
return ret;
- } else if (priv->phy_intf != PHY_INTERFACE_MODE_RMII) {
+ } else if (priv->phy_intf != PHY_INTERFACE_MODE_RMII &&
+ priv->phy_intf != PHY_INTERFACE_MODE_MII) {
dev_err(dev, "unsupported phy mode: %s\n",
phy_modes(priv->phy_intf));
return -EINVAL;
@@ -1611,6 +1614,10 @@ static int mt8516_set_interface_mode(struct net_device *ndev)
unsigned int intf_val, ret, rmii_rxc;
switch (priv->phy_intf) {
+ case PHY_INTERFACE_MODE_MII:
+ intf_val = MTK_PERICFG_BIT_NIC_CFG_CON_MII;
+ rmii_rxc = 0;
+ break;
case PHY_INTERFACE_MODE_RMII:
intf_val = MTK_PERICFG_BIT_NIC_CFG_CON_RMII;
rmii_rxc = priv->rmii_rxc ? 0 : MTK_PERICFG_BIT_NIC_CFG_CON_CLK;
@@ -1640,6 +1647,9 @@ static int mt8365_set_interface_mode(struct net_device *ndev)
unsigned int intf_val;
switch (priv->phy_intf) {
+ case PHY_INTERFACE_MODE_MII:
+ intf_val = MTK_PERICFG_BIT_NIC_CFG_CON_MII;
+ break;
case PHY_INTERFACE_MODE_RMII:
intf_val = MTK_PERICFG_BIT_NIC_CFG_CON_RMII;
intf_val |= priv->rmii_rxc ? 0 : MTK_PERICFG_BIT_NIC_CFG_CON_CLK_V2;
--
2.25.1
