1 files changed, 64 insertions, 10 deletions

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
index 36942f5a6a53..433a84239a68 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
@@ -12,10 +12,6 @@
   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
   more details.
 
-  You should have received a copy of the GNU General Public License along with
-  this program; if not, write to the Free Software Foundation, Inc.,
-  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
-
   The full GNU General Public License is included in this distribution in
   the file called "COPYING".
 
@@ -121,7 +117,6 @@ static struct stmmac_axi *stmmac_axi_setup(struct platform_device *pdev)
 	axi->axi_lpi_en = of_property_read_bool(np, "snps,lpi_en");
 	axi->axi_xit_frm = of_property_read_bool(np, "snps,xit_frm");
 	axi->axi_kbbe = of_property_read_bool(np, "snps,axi_kbbe");
-	axi->axi_axi_all = of_property_read_bool(np, "snps,axi_all");
 	axi->axi_fb = of_property_read_bool(np, "snps,axi_fb");
 	axi->axi_mb = of_property_read_bool(np, "snps,axi_mb");
 	axi->axi_rb =  of_property_read_bool(np, "snps,axi_rb");
@@ -181,10 +176,19 @@ static int stmmac_dt_phy(struct plat_stmmacenet_data *plat,
 		mdio = false;
 	}
 
-	/* If snps,dwmac-mdio is passed from DT, always register the MDIO */
-	for_each_child_of_node(np, plat->mdio_node) {
-		if (of_device_is_compatible(plat->mdio_node, "snps,dwmac-mdio"))
-			break;
+	/* exception for dwmac-dwc-qos-eth glue logic */
+	if (of_device_is_compatible(np, "snps,dwc-qos-ethernet-4.10")) {
+		plat->mdio_node = of_get_child_by_name(np, "mdio");
+	} else {
+		/**
+		 * If snps,dwmac-mdio is passed from DT, always register
+		 * the MDIO
+		 */
+		for_each_child_of_node(np, plat->mdio_node) {
+			if (of_device_is_compatible(plat->mdio_node,
+						    "snps,dwmac-mdio"))
+				break;
+		}
 	}
 
 	if (plat->mdio_node) {
@@ -249,6 +253,9 @@ stmmac_probe_config_dt(struct platform_device *pdev, const char **mac)
 	plat->force_sf_dma_mode =
 		of_property_read_bool(np, "snps,force_sf_dma_mode");
 
+	plat->en_tx_lpi_clockgating =
+		of_property_read_bool(np, "snps,en-tx-lpi-clockgating");
+
 	/* Set the maxmtu to a default of JUMBO_LEN in case the
 	 * parameter is not present in the device tree.
 	 */
@@ -333,7 +340,54 @@ stmmac_probe_config_dt(struct platform_device *pdev, const char **mac)
 
 	plat->axi = stmmac_axi_setup(pdev);
 
+	/* clock setup */
+	plat->stmmac_clk = devm_clk_get(&pdev->dev,
+					STMMAC_RESOURCE_NAME);
+	if (IS_ERR(plat->stmmac_clk)) {
+		dev_warn(&pdev->dev, "Cannot get CSR clock\n");
+		plat->stmmac_clk = NULL;
+	}
+	clk_prepare_enable(plat->stmmac_clk);
+
+	plat->pclk = devm_clk_get(&pdev->dev, "pclk");
+	if (IS_ERR(plat->pclk)) {
+		if (PTR_ERR(plat->pclk) == -EPROBE_DEFER)
+			goto error_pclk_get;
+
+		plat->pclk = NULL;
+	}
+	clk_prepare_enable(plat->pclk);
+
+	/* Fall-back to main clock in case of no PTP ref is passed */
+	plat->clk_ptp_ref = devm_clk_get(&pdev->dev, "clk_ptp_ref");
+	if (IS_ERR(plat->clk_ptp_ref)) {
+		plat->clk_ptp_rate = clk_get_rate(plat->stmmac_clk);
+		plat->clk_ptp_ref = NULL;
+		dev_warn(&pdev->dev, "PTP uses main clock\n");
+	} else {
+		clk_prepare_enable(plat->clk_ptp_ref);
+		plat->clk_ptp_rate = clk_get_rate(plat->clk_ptp_ref);
+		dev_dbg(&pdev->dev, "PTP rate %d\n", plat->clk_ptp_rate);
+	}
+
+	plat->stmmac_rst = devm_reset_control_get(&pdev->dev,
+						  STMMAC_RESOURCE_NAME);
+	if (IS_ERR(plat->stmmac_rst)) {
+		if (PTR_ERR(plat->stmmac_rst) == -EPROBE_DEFER)
+			goto error_hw_init;
+
+		dev_info(&pdev->dev, "no reset control found\n");
+		plat->stmmac_rst = NULL;
+	}
+
 	return plat;
+
+error_hw_init:
+	clk_disable_unprepare(plat->pclk);
+error_pclk_get:
+	clk_disable_unprepare(plat->stmmac_clk);
+
+	return ERR_PTR(-EPROBE_DEFER);
 }
 
 /**
@@ -357,7 +411,7 @@ void stmmac_remove_config_dt(struct platform_device *pdev,
 struct plat_stmmacenet_data *
 stmmac_probe_config_dt(struct platform_device *pdev, const char **mac)
 {
-	return ERR_PTR(-ENOSYS);
+	return ERR_PTR(-EINVAL);
 }
 
 void stmmac_remove_config_dt(struct platform_device *pdev,