diff --git a/arch/arm/boot/dts/overlays/README b/arch/arm/boot/dts/overlays/README
index 505f37235473c90b7a3c9011e44d2bd8b3b4cfb9..116863ba85b6cdee18ba6a5927ccb3c66be5f6db 100644
--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -2114,6 +2114,7 @@ Info:   Overlay for the NXP SC16IS752 Dual UART with SPI Interface
 
 Load:   dtoverlay=sc16is752-spi1,<param>=<val>
 Params: int_pin                 GPIO used for IRQ (default 24)
+        xtal                    On-board crystal frequency (default 14745600)
 
 
 Name:   sdhost
diff --git a/arch/arm/boot/dts/overlays/sc16is752-spi1-overlay.dts b/arch/arm/boot/dts/overlays/sc16is752-spi1-overlay.dts
index 4e33b14afc78498760a1239237753df9a2dbf496..131d3ab43d3a5f8557e3e694d195df1e2dc04f38 100644
--- a/arch/arm/boot/dts/overlays/sc16is752-spi1-overlay.dts
+++ b/arch/arm/boot/dts/overlays/sc16is752-spi1-overlay.dts
@@ -56,6 +56,7 @@
 	};
 
     __overrides__ {
-      int_pin = <&sc16is752>,"interrupts:0";
+		int_pin = <&sc16is752>,"interrupts:0";
+		xtal = <&sc16is752_clk>,"clock-frequency:0";
     };
 };