[PATCH 4/4] net: gem: Enable ethernet rx clock for versal

[Michal Simek]

From: T Karthik Reddy <t.karthik.reddy at xilinx.com>

Enable rx clock along with tx clock for versal platform.

Signed-off-by: T Karthik Reddy <t.karthik.reddy at xilinx.com>
Signed-off-by: Michal Simek <michal.simek at xilinx.com>
---

 drivers/net/zynq_gem.c | 26 ++++++++++++++++++++------
 1 file changed, 20 insertions(+), 6 deletions(-)

diff --git a/drivers/net/zynq_gem.c b/drivers/net/zynq_gem.c
index 5cb02bb3a7d2..ea080fbacc94 100644
--- a/drivers/net/zynq_gem.c
+++ b/drivers/net/zynq_gem.c
@@ -205,7 +205,8 @@ struct zynq_gem_priv {
 	struct phy_device *phydev;
 	ofnode phy_of_node;
 	struct mii_dev *bus;
-	struct clk clk;
+	struct clk rx_clk;
+	struct clk tx_clk;
 	u32 max_speed;
 	bool int_pcs;
 	bool dma_64bit;
@@ -476,18 +477,25 @@ static int zynq_gem_init(struct udevice *dev)
 		break;
 	}
 
-	ret = clk_set_rate(&priv->clk, clk_rate);
+	ret = clk_set_rate(&priv->tx_clk, clk_rate);
 	if (IS_ERR_VALUE(ret) && ret != (unsigned long)-ENOSYS) {
 		dev_err(dev, "failed to set tx clock rate\n");
 		return ret;
 	}
 
-	ret = clk_enable(&priv->clk);
-	if (ret && ret != -ENOSYS) {
+	ret = clk_enable(&priv->tx_clk);
+	if (ret) {
 		dev_err(dev, "failed to enable tx clock\n");
 		return ret;
 	}
 
+	if (IS_ENABLED(CONFIG_ARCH_VERSAL)) {
+		ret = clk_enable(&priv->rx_clk);
+		if (ret) {
+			dev_err(dev, "failed to enable rx clock\n");
+			return ret;
+		}
+	}
 	setbits_le32(&regs->nwctrl, ZYNQ_GEM_NWCTRL_RXEN_MASK |
 					ZYNQ_GEM_NWCTRL_TXEN_MASK);
 
@@ -694,9 +702,15 @@ static int zynq_gem_probe(struct udevice *dev)
 	priv->tx_bd = (struct emac_bd *)bd_space;
 	priv->rx_bd = (struct emac_bd *)((ulong)bd_space + BD_SEPRN_SPACE);
 
-	ret = clk_get_by_name(dev, "tx_clk", &priv->clk);
+	ret = clk_get_by_name(dev, "tx_clk", &priv->tx_clk);
+	if (ret < 0) {
+		dev_err(dev, "failed to get tx_clock\n");
+		goto err1;
+	}
+
+	ret = clk_get_by_name(dev, "rx_clk", &priv->rx_clk);
 	if (ret < 0) {
-		dev_err(dev, "failed to get clock\n");
+		dev_err(dev, "failed to get rx_clock\n");
 		goto err1;
 	}
 
-- 
2.30.0