From: Christophe Parant <c.parant@phytec.fr>
Date: Wed, 10 Dec 2025 10:16:07 +0000 (+0100)
Subject: ARM: dts: stm32: phycore-stm32mp15: Add dummy memory-node
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=b95ce919a73166f6ea86d0e6714776349e7b03da;p=thirdparty%2Fkernel%2Flinux.git

ARM: dts: stm32: phycore-stm32mp15: Add dummy memory-node

"memory" node is not necessary as the bootloader is taking care of
passing the correct DDR size.
However keep a dummy memory node with the minimum DDR size (512MB) with
comment explaining that.

Signed-off-by: Christophe Parant <c.parant@phytec.fr>
Link: https://lore.kernel.org/r/20251210101611.27008-8-c.parant@phytec.fr
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
---

diff --git a/arch/arm/boot/dts/st/stm32mp15xx-phycore-som.dtsi b/arch/arm/boot/dts/st/stm32mp15xx-phycore-som.dtsi
index 72926c3de52c5..ce859b94ae26b 100644
--- a/arch/arm/boot/dts/st/stm32mp15xx-phycore-som.dtsi
+++ b/arch/arm/boot/dts/st/stm32mp15xx-phycore-som.dtsi
@@ -22,6 +22,15 @@
 		rtc1 = &rtc;
 	};
 
+	/*
+	 * Set the minimum memory size here and
+	 * let the bootloader set the real size.
+	 */
+	memory@c0000000 {
+		device_type = "memory";
+		reg = <0xc0000000 0x20000000>;
+	};
+
 	reserved-memory {
 		#address-cells = <1>;
 		#size-cells = <1>;