diff --git a/drivers/clk/mediatek/clk-mtk.c b/drivers/clk/mediatek/clk-mtk.c
index 207a4c6..4303300 100644
--- a/drivers/clk/mediatek/clk-mtk.c
+++ b/drivers/clk/mediatek/clk-mtk.c
@@ -296,6 +296,7 @@
 		rate = mtk_clk_find_parent_rate(clk, fdiv->parent, NULL);
 		break;
 
+	case CLK_PARENT_XTAL:
 	default:
 		rate = priv->tree->xtal_rate;
 	}
@@ -314,6 +315,9 @@
 		rate = mtk_clk_find_parent_rate(clk, fdiv->parent,
 						priv->parent);
 		break;
+	case CLK_PARENT_XTAL:
+		rate = priv->tree->xtal_rate;
+		break;
 	default:
 		rate = mtk_clk_find_parent_rate(clk, fdiv->parent, NULL);
 	}
diff --git a/drivers/clk/mediatek/clk-mtk.h b/drivers/clk/mediatek/clk-mtk.h
index e7c61ae..48ce164 100644
--- a/drivers/clk/mediatek/clk-mtk.h
+++ b/drivers/clk/mediatek/clk-mtk.h
@@ -29,7 +29,8 @@
 #define CLK_PARENT_APMIXED		BIT(4)
 #define CLK_PARENT_TOPCKGEN		BIT(5)
 #define CLK_PARENT_INFRASYS		BIT(6)
-#define CLK_PARENT_MASK			GENMASK(6, 4)
+#define CLK_PARENT_XTAL			BIT(7)
+#define CLK_PARENT_MASK			GENMASK(7, 4)
 
 #define ETHSYS_HIFSYS_RST_CTRL_OFS	0x34