STM32MP23x SoCs provide a DDR controller supporting up to 4GB/16-bit.
The control pin to properly configure 4GB/16-bit is not routed on
stm32mp235f-dk, that's why the board only supports 2GB.

Signed-off-by: Amelie Delaunay <amelie.delaunay@foss.st.com>
---
 arch/arm64/boot/dts/st/stm32mp235f-dk.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/st/stm32mp235f-dk.dts b/arch/arm64/boot/dts/st/stm32mp235f-dk.dts
index 04d1b434c433e5f76d120f4bd254c15a2de3fb94..1d0ccf4a03314703553facffde3d41647645ea3e 100644
--- a/arch/arm64/boot/dts/st/stm32mp235f-dk.dts
+++ b/arch/arm64/boot/dts/st/stm32mp235f-dk.dts
@@ -56,7 +56,7 @@ led-blue {
 
 	memory@80000000 {
 		device_type = "memory";
-		reg = <0x0 0x80000000 0x1 0x0>;
+		reg = <0x0 0x80000000 0x0 0x80000000>;
 	};
 
 	reserved-memory {

-- 
2.25.1