+static int rv1108_set_rmii_speed(struct dw_eth_dev *priv)
+{
+ struct rv1108_grf *grf;
+ int clk, speed;
+ enum {
+ RV1108_GMAC_SPEED_MASK = BIT(2),
+ RV1108_GMAC_SPEED_10M = 0 << 2,
+ RV1108_GMAC_SPEED_100M = 1 << 2,
+ RV1108_GMAC_CLK_SEL_MASK = BIT(7),
+ RV1108_GMAC_CLK_SEL_2_5M = 0 << 7,
+ RV1108_GMAC_CLK_SEL_25M = 1 << 7,
+ };
+
+ switch (priv->phydev->speed) {
+ case 10:
+ clk = RV1108_GMAC_CLK_SEL_2_5M;
+ speed = RV1108_GMAC_SPEED_10M;
+ break;
+ case 100:
+ clk = RV1108_GMAC_CLK_SEL_25M;
+ speed = RV1108_GMAC_SPEED_100M;
+ break;
+ default:
+ debug("Unknown phy speed: %d\n", priv->phydev->speed);
+ return -EINVAL;
+ }
+
+ grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
+ rk_clrsetreg(&grf->gmac_con0,
+ RV1108_GMAC_CLK_SEL_MASK | RV1108_GMAC_SPEED_MASK,
+ clk | speed);
+
+ return 0;
+}
+
+static void rk3228_gmac_set_to_rgmii(struct gmac_rockchip_platdata *pdata)
+{
+ struct rk322x_grf *grf;
+ enum {
+ RK3228_RMII_MODE_SHIFT = 10,
+ RK3228_RMII_MODE_MASK = BIT(10),
+
+ RK3228_GMAC_PHY_INTF_SEL_SHIFT = 4,
+ RK3228_GMAC_PHY_INTF_SEL_MASK = GENMASK(6, 4),
+ RK3228_GMAC_PHY_INTF_SEL_RGMII = BIT(4),
+
+ RK3228_RXCLK_DLY_ENA_GMAC_MASK = BIT(1),
+ RK3228_RXCLK_DLY_ENA_GMAC_DISABLE = 0,
+ RK3228_RXCLK_DLY_ENA_GMAC_ENABLE = BIT(1),
+
+ RK3228_TXCLK_DLY_ENA_GMAC_MASK = BIT(0),
+ RK3228_TXCLK_DLY_ENA_GMAC_DISABLE = 0,
+ RK3228_TXCLK_DLY_ENA_GMAC_ENABLE = BIT(0),
+ };
+ enum {
+ RK3228_CLK_RX_DL_CFG_GMAC_SHIFT = 0x7,
+ RK3228_CLK_RX_DL_CFG_GMAC_MASK = GENMASK(13, 7),
+
+ RK3228_CLK_TX_DL_CFG_GMAC_SHIFT = 0x0,
+ RK3228_CLK_TX_DL_CFG_GMAC_MASK = GENMASK(6, 0),
+ };
+
+ grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
+ rk_clrsetreg(&grf->mac_con[1],
+ RK3228_RMII_MODE_MASK |
+ RK3228_GMAC_PHY_INTF_SEL_MASK |
+ RK3228_RXCLK_DLY_ENA_GMAC_MASK |
+ RK3228_TXCLK_DLY_ENA_GMAC_MASK,
+ RK3228_GMAC_PHY_INTF_SEL_RGMII |
+ RK3228_RXCLK_DLY_ENA_GMAC_ENABLE |
+ RK3228_TXCLK_DLY_ENA_GMAC_ENABLE);
+
+ rk_clrsetreg(&grf->mac_con[0],
+ RK3228_CLK_RX_DL_CFG_GMAC_MASK |
+ RK3228_CLK_TX_DL_CFG_GMAC_MASK,
+ pdata->rx_delay << RK3228_CLK_RX_DL_CFG_GMAC_SHIFT |
+ pdata->tx_delay << RK3228_CLK_TX_DL_CFG_GMAC_SHIFT);
+}
+