From: Frank Wunderlich <frank-w@xxxxxxxxxxxxxxx>
Add memory range handled by ATF to not be touched by linux kernel.
Signed-off-by: Frank Wunderlich <frank-w@xxxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/mediatek/mt7988a.dtsi | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/arch/arm64/boot/dts/mediatek/mt7988a.dtsi b/arch/arm64/boot/dts/mediatek/mt7988a.dtsi
index a3a7deda35a5..7721d2ec06ee 100644
--- a/arch/arm64/boot/dts/mediatek/mt7988a.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt7988a.dtsi
@@ -81,6 +81,18 @@ reg_3p3v: regulator-3p3v {
regulator-always-on;
};
+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ /* 320 KiB reserved for ARM Trusted Firmware (BL31 and BL32) */
+ secmon_reserved: secmon@43000000 {
+ reg = <0 0x43000000 0 0x50000>;
+ no-map;
+ };
+ };
+
soc {
compatible = "simple-bus";
ranges;
--
2.43.0
