From 3da2ea1933c6372e22d2a536bbe86dd3e7d09121 Mon Sep 17 00:00:00 2001 From: Aaron Kling Date: Sun, 3 Aug 2025 22:14:31 -0500 Subject: [PATCH] arm64: tegra: Add reserved-memory node for P2180 The Tegra210 L4T bootloader RAM training will corrupt the in-RAM kernel DT if no reserved-memory node exists. This prevents said bootloader from being able to boot a kernel without this node, unless a chainloaded bootloader loads the DT. Add the node to eliminate the requirement for extra boot stages. Signed-off-by: Aaron Kling Signed-off-by: Thierry Reding --- arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi b/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi index e07aeeee35867..9ee7952af7997 100644 --- a/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi +++ b/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi @@ -18,6 +18,12 @@ stdout-path = "serial0:115200n8"; }; + reserved-memory { + #address-cells = <2>; + #size-cells = <2>; + ranges; + }; + memory@80000000 { device_type = "memory"; reg = <0x0 0x80000000 0x1 0x0>; -- 2.47.3