clk: actions: Add Ethernet clocks

This commit adds clocks needed for ethernet operations for
Actions OWL family of SoCs (S700 and S900).

Signed-off-by: Amit Singh Tomar <amittomer25@gmail.com>
diff --git a/drivers/clk/owl/clk_owl.c b/drivers/clk/owl/clk_owl.c
index 9715fce..1999c87 100644
--- a/drivers/clk/owl/clk_owl.c
+++ b/drivers/clk/owl/clk_owl.c
@@ -87,6 +87,11 @@
 		/* Enable UART3 interface clock */
 		setbits_le32(priv->base + CMU_DEVCLKEN1, CMU_DEVCLKEN1_UART3);
 		break;
+	case CLK_RMII_REF:
+	case CLK_ETHERNET:
+		setbits_le32(priv->base + CMU_DEVCLKEN1, CMU_DEVCLKEN1_ETH);
+		setbits_le32(priv->base + CMU_ETHERNETPLL, 5);
+		break;
 	default:
 		return -EINVAL;
 	}
@@ -112,6 +117,10 @@
 		/* Disable UART3 interface clock */
 		clrbits_le32(priv->base + CMU_DEVCLKEN1, CMU_DEVCLKEN1_UART3);
 		break;
+	case CLK_RMII_REF:
+	case CLK_ETHERNET:
+		clrbits_le32(priv->base + CMU_DEVCLKEN1, CMU_DEVCLKEN1_ETH);
+		break;
 	default:
 		return -EINVAL;
 	}