Add 32bits DDR4 channel to the stm32mp257f-dk board.

Signed-off-by: Clément Le Goffic <clement.legoffic@foss.st.com>
---
 arch/arm64/boot/dts/st/stm32mp257f-ev1.dts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts b/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts
index 2f561ad40665..f987d86d350f 100644
--- a/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts
+++ b/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts
@@ -41,6 +41,11 @@ pad_clk: pad-clk {
 		};
 	};
 
+	ddr_channel: ddr4-channel {
+		compatible = "jedec,ddr4-channel";
+		io-width = <32>;
+	};
+
 	imx335_2v9: regulator-2v9 {
 		compatible = "regulator-fixed";
 		regulator-name = "imx335-avdd";

-- 
2.43.0