diff options
Diffstat (limited to 'drivers/net/ethernet')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c index 65afca69d42f..00a1e1e09d4f 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c @@ -184,6 +184,118 @@ struct rk_gmac_ops rk3288_ops = { .set_rmii_speed = rk3288_set_rmii_speed, }; +#define RK3368_GRF_SOC_CON15 0x043c +#define RK3368_GRF_SOC_CON16 0x0440 + +/* RK3368_GRF_SOC_CON15 */ +#define RK3368_GMAC_PHY_INTF_SEL_RGMII (GRF_BIT(9) | GRF_CLR_BIT(10) | \ + GRF_CLR_BIT(11)) +#define RK3368_GMAC_PHY_INTF_SEL_RMII (GRF_CLR_BIT(9) | GRF_CLR_BIT(10) | \ + GRF_BIT(11)) +#define RK3368_GMAC_FLOW_CTRL GRF_BIT(8) +#define RK3368_GMAC_FLOW_CTRL_CLR GRF_CLR_BIT(8) +#define RK3368_GMAC_SPEED_10M GRF_CLR_BIT(7) +#define RK3368_GMAC_SPEED_100M GRF_BIT(7) +#define RK3368_GMAC_RMII_CLK_25M GRF_BIT(3) +#define RK3368_GMAC_RMII_CLK_2_5M GRF_CLR_BIT(3) +#define RK3368_GMAC_CLK_125M (GRF_CLR_BIT(4) | GRF_CLR_BIT(5)) +#define RK3368_GMAC_CLK_25M (GRF_BIT(4) | GRF_BIT(5)) +#define RK3368_GMAC_CLK_2_5M (GRF_CLR_BIT(4) | GRF_BIT(5)) +#define RK3368_GMAC_RMII_MODE GRF_BIT(6) +#define RK3368_GMAC_RMII_MODE_CLR GRF_CLR_BIT(6) + +/* RK3368_GRF_SOC_CON16 */ +#define RK3368_GMAC_TXCLK_DLY_ENABLE GRF_BIT(7) +#define RK3368_GMAC_TXCLK_DLY_DISABLE GRF_CLR_BIT(7) +#define RK3368_GMAC_RXCLK_DLY_ENABLE GRF_BIT(15) +#define RK3368_GMAC_RXCLK_DLY_DISABLE GRF_CLR_BIT(15) +#define RK3368_GMAC_CLK_RX_DL_CFG(val) HIWORD_UPDATE(val, 0x7F, 8) +#define RK3368_GMAC_CLK_TX_DL_CFG(val) HIWORD_UPDATE(val, 0x7F, 0) + +static void rk3368_set_to_rgmii(struct rk_priv_data *bsp_priv, + int tx_delay, int rx_delay) +{ + struct device *dev = &bsp_priv->pdev->dev; + + if (IS_ERR(bsp_priv->grf)) { + dev_err(dev, "%s: Missing rockchip,grf property\n", __func__); + return; + } + + regmap_write(bsp_priv->grf, RK3368_GRF_SOC_CON15, + RK3368_GMAC_PHY_INTF_SEL_RGMII | + RK3368_GMAC_RMII_MODE_CLR); + regmap_write(bsp_priv->grf, RK3368_GRF_SOC_CON16, + RK3368_GMAC_RXCLK_DLY_ENABLE | + RK3368_GMAC_TXCLK_DLY_ENABLE | + RK3368_GMAC_CLK_RX_DL_CFG(rx_delay) | + RK3368_GMAC_CLK_TX_DL_CFG(tx_delay)); +} + +static void rk3368_set_to_rmii(struct rk_priv_data *bsp_priv) +{ + struct device *dev = &bsp_priv->pdev->dev; + + if (IS_ERR(bsp_priv->grf)) { + dev_err(dev, "%s: Missing rockchip,grf property\n", __func__); + return; + } + + regmap_write(bsp_priv->grf, RK3368_GRF_SOC_CON15, + RK3368_GMAC_PHY_INTF_SEL_RMII | RK3368_GMAC_RMII_MODE); +} + +static void rk3368_set_rgmii_speed(struct rk_priv_data *bsp_priv, int speed) +{ + struct device *dev = &bsp_priv->pdev->dev; + + if (IS_ERR(bsp_priv->grf)) { + dev_err(dev, "%s: Missing rockchip,grf property\n", __func__); + return; + } + + if (speed == 10) + regmap_write(bsp_priv->grf, RK3368_GRF_SOC_CON15, + RK3368_GMAC_CLK_2_5M); + else if (speed == 100) + regmap_write(bsp_priv->grf, RK3368_GRF_SOC_CON15, + RK3368_GMAC_CLK_25M); + else if (speed == 1000) + regmap_write(bsp_priv->grf, RK3368_GRF_SOC_CON15, + RK3368_GMAC_CLK_125M); + else + dev_err(dev, "unknown speed value for RGMII! speed=%d", speed); +} + +static void rk3368_set_rmii_speed(struct rk_priv_data *bsp_priv, int speed) +{ + struct device *dev = &bsp_priv->pdev->dev; + + if (IS_ERR(bsp_priv->grf)) { + dev_err(dev, "%s: Missing rockchip,grf property\n", __func__); + return; + } + + if (speed == 10) { + regmap_write(bsp_priv->grf, RK3368_GRF_SOC_CON15, + RK3368_GMAC_RMII_CLK_2_5M | + RK3368_GMAC_SPEED_10M); + } else if (speed == 100) { + regmap_write(bsp_priv->grf, RK3368_GRF_SOC_CON15, + RK3368_GMAC_RMII_CLK_25M | + RK3368_GMAC_SPEED_100M); + } else { + dev_err(dev, "unknown speed value for RMII! speed=%d", speed); + } +} + +struct rk_gmac_ops rk3368_ops = { + .set_to_rgmii = rk3368_set_to_rgmii, + .set_to_rmii = rk3368_set_to_rmii, + .set_rgmii_speed = rk3368_set_rgmii_speed, + .set_rmii_speed = rk3368_set_rmii_speed, +}; + static int gmac_clk_init(struct rk_priv_data *bsp_priv) { struct device *dev = &bsp_priv->pdev->dev; @@ -422,6 +534,11 @@ static void *rk3288_gmac_setup(struct platform_device *pdev) return rk_gmac_setup(pdev, &rk3288_ops); } +static void *rk3368_gmac_setup(struct platform_device *pdev) +{ + return rk_gmac_setup(pdev, &rk3368_ops); +} + static int rk_gmac_init(struct platform_device *pdev, void *priv) { struct rk_priv_data *bsp_priv = priv; @@ -467,8 +584,17 @@ static const struct stmmac_of_data rk3288_gmac_data = { .exit = rk_gmac_exit, }; +static const struct stmmac_of_data rk3368_gmac_data = { + .has_gmac = 1, + .fix_mac_speed = rk_fix_speed, + .setup = rk3368_gmac_setup, + .init = rk_gmac_init, + .exit = rk_gmac_exit, +}; + static const struct of_device_id rk_gmac_dwmac_match[] = { { .compatible = "rockchip,rk3288-gmac", .data = &rk3288_gmac_data}, + { .compatible = "rockchip,rk3368-gmac", .data = &rk3368_gmac_data}, { } }; MODULE_DEVICE_TABLE(of, rk_gmac_dwmac_match); |