From: Duje Mihanović <duje@dujemihanovic.xyz>
Date: Sat, 13 Sep 2025 21:21:10 +0000 (+0200)
Subject: arm64: dts: marvell: samsung,coreprimevelte: Fill in memory node
X-Git-Tag: v6.19-rc1~100^2~34^2~2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=56985660120bd040a5d1205f86ba91f8a149a493;p=thirdparty%2Fkernel%2Flinux.git

arm64: dts: marvell: samsung,coreprimevelte: Fill in memory node

The board is known to have 1 GiB of DRAM with the first 16 MiB unusable.
Instead of relying on the bootloader to fill in the memory node, do it
ourselves.

Signed-off-by: Duje Mihanović <duje@dujemihanovic.xyz>
---

diff --git a/arch/arm64/boot/dts/marvell/mmp/pxa1908-samsung-coreprimevelte.dts b/arch/arm64/boot/dts/marvell/mmp/pxa1908-samsung-coreprimevelte.dts
index 2f4f052ad890c..7fd5420937bd3 100644
--- a/arch/arm64/boot/dts/marvell/mmp/pxa1908-samsung-coreprimevelte.dts
+++ b/arch/arm64/boot/dts/marvell/mmp/pxa1908-samsung-coreprimevelte.dts
@@ -31,13 +31,22 @@
 		};
 	};
 
-	/* Bootloader fills this in */
 	memory@0 {
 		device_type = "memory";
-		reg = <0 0 0 0>;
+		reg = <0 0 0 0x40000000>;
 	};
 
 	reserved-memory {
+		/*
+		 * Reserved by the vendor bootloader as a "secure region".
+		 *
+		 * TODO: See if the responsible stage of the bootloader can be
+		 * replaced
+		 */
+		secure-region@0 {
+			reg = <0 0 0 0x1000000>;
+		};
+
 		framebuffer@17000000 {
 			reg = <0 0x17000000 0 0x1800000>;
 			no-map;