1 files changed, 17 insertions, 40 deletions

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c
index cd431f84f34f..09ae16e026eb 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c
@@ -29,21 +29,10 @@ struct tegra_eqos {
 	void __iomem *regs;
 
 	struct reset_control *rst;
-	struct clk *clk_slave;
 
 	struct gpio_desc *reset;
 };
 
-static struct clk *dwc_eth_find_clk(struct plat_stmmacenet_data *plat_dat,
-				    const char *name)
-{
-	for (int i = 0; i < plat_dat->num_clks; i++)
-		if (strcmp(plat_dat->clks[i].id, name) == 0)
-			return plat_dat->clks[i].clk;
-
-	return NULL;
-}
-
 static int dwc_eth_dwmac_config_dt(struct platform_device *pdev,
 				   struct plat_stmmacenet_data *plat_dat)
 {
@@ -132,7 +121,7 @@ static int dwc_qos_probe(struct platform_device *pdev,
 			 struct plat_stmmacenet_data *plat_dat,
 			 struct stmmac_resources *stmmac_res)
 {
-	plat_dat->pclk = dwc_eth_find_clk(plat_dat, "phy_ref_clk");
+	plat_dat->pclk = stmmac_pltfr_find_clk(plat_dat, "phy_ref_clk");
 
 	return 0;
 }
@@ -147,10 +136,11 @@ static int dwc_qos_probe(struct platform_device *pdev,
 #define AUTO_CAL_STATUS 0x880c
 #define  AUTO_CAL_STATUS_ACTIVE BIT(31)
 
-static void tegra_eqos_fix_speed(void *priv, int speed, unsigned int mode)
+static void tegra_eqos_fix_speed(void *bsp_priv, int speed, unsigned int mode)
 {
-	struct tegra_eqos *eqos = priv;
+	struct tegra_eqos *eqos = bsp_priv;
 	bool needs_calibration = false;
+	struct stmmac_priv *priv;
 	u32 value;
 	int err;
 
@@ -169,6 +159,11 @@ static void tegra_eqos_fix_speed(void *priv, int speed, unsigned int mode)
 	}
 
 	if (needs_calibration) {
+		priv = netdev_priv(dev_get_drvdata(eqos->dev));
+
+		/* Calibration should be done with the MDIO bus idle */
+		mutex_lock(&priv->mii->mdio_lock);
+
 		/* calibrate */
 		value = readl(eqos->regs + SDMEMCOMPPADCTRL);
 		value |= SDMEMCOMPPADCTRL_PAD_E_INPUT_OR_E_PWRD;
@@ -202,6 +197,8 @@ static void tegra_eqos_fix_speed(void *priv, int speed, unsigned int mode)
 		value = readl(eqos->regs + SDMEMCOMPPADCTRL);
 		value &= ~SDMEMCOMPPADCTRL_PAD_E_INPUT_OR_E_PWRD;
 		writel(value, eqos->regs + SDMEMCOMPPADCTRL);
+
+		mutex_unlock(&priv->mii->mdio_lock);
 	} else {
 		value = readl(eqos->regs + AUTO_CAL_CONFIG);
 		value &= ~AUTO_CAL_CONFIG_ENABLE;
@@ -209,20 +206,6 @@ static void tegra_eqos_fix_speed(void *priv, int speed, unsigned int mode)
 	}
 }
 
-static int tegra_eqos_init(struct platform_device *pdev, void *priv)
-{
-	struct tegra_eqos *eqos = priv;
-	unsigned long rate;
-	u32 value;
-
-	rate = clk_get_rate(eqos->clk_slave);
-
-	value = (rate / 1000000) - 1;
-	writel(value, eqos->regs + GMAC_1US_TIC_COUNTER);
-
-	return 0;
-}
-
 static int tegra_eqos_probe(struct platform_device *pdev,
 			    struct plat_stmmacenet_data *plat_dat,
 			    struct stmmac_resources *res)
@@ -237,12 +220,11 @@ static int tegra_eqos_probe(struct platform_device *pdev,
 
 	eqos->dev = &pdev->dev;
 	eqos->regs = res->addr;
-	eqos->clk_slave = plat_dat->stmmac_clk;
 
 	if (!is_of_node(dev->fwnode))
 		goto bypass_clk_reset_gpio;
 
-	plat_dat->clk_tx_i = dwc_eth_find_clk(plat_dat, "tx");
+	plat_dat->clk_tx_i = stmmac_pltfr_find_clk(plat_dat, "tx");
 
 	eqos->reset = devm_gpiod_get(&pdev->dev, "phy-reset", GPIOD_OUT_HIGH);
 	if (IS_ERR(eqos->reset)) {
@@ -277,17 +259,12 @@ static int tegra_eqos_probe(struct platform_device *pdev,
 bypass_clk_reset_gpio:
 	plat_dat->fix_mac_speed = tegra_eqos_fix_speed;
 	plat_dat->set_clk_tx_rate = stmmac_set_clk_tx_rate;
-	plat_dat->init = tegra_eqos_init;
 	plat_dat->bsp_priv = eqos;
-	plat_dat->flags |= STMMAC_FLAG_SPH_DISABLE;
-
-	err = tegra_eqos_init(pdev, eqos);
-	if (err < 0)
-		goto reset;
+	plat_dat->flags |= STMMAC_FLAG_SPH_DISABLE |
+			   STMMAC_FLAG_EN_TX_LPI_CLK_PHY_CAP;
 
 	return 0;
-reset:
-	reset_control_assert(eqos->rst);
+
 reset_phy:
 	gpiod_set_value(eqos->reset, 1);
 
@@ -362,8 +339,8 @@ static int dwc_eth_dwmac_probe(struct platform_device *pdev)
 	if (ret)
 		return dev_err_probe(&pdev->dev, ret, "Failed to enable clocks\n");
 
-	plat_dat->stmmac_clk = dwc_eth_find_clk(plat_dat,
-						data->stmmac_clk_name);
+	plat_dat->stmmac_clk = stmmac_pltfr_find_clk(plat_dat,
+						     data->stmmac_clk_name);
 
 	if (data->probe)
 		ret = data->probe(pdev, plat_dat, &stmmac_res);