diff mbox series

[v2,07/18] arm64: dts: mediatek: mt7988: add reserved memory

Message ID 20241202122602.30734-8-linux@fw-web.de (mailing list archive)
State New
Headers show
Series continue mt7988 devicetree work | expand

Commit Message

Frank Wunderlich Dec. 2, 2024, 12:25 p.m. UTC 
From: Frank Wunderlich <frank-w@public-files.de>

Add memory range handled by ATF to not be touched by linux kernel.
ATF is SoC specific and not board-specific so add it to mt7988.dtsi.

Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
---
 arch/arm64/boot/dts/mediatek/mt7988a.dtsi | 12 ++++++++++++
 1 file changed, 12 insertions(+)
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/mediatek/mt7988a.dtsi b/arch/arm64/boot/dts/mediatek/mt7988a.dtsi
index 09dcb39ad098..1cf801486e61 100644
--- a/arch/arm64/boot/dts/mediatek/mt7988a.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt7988a.dtsi
@@ -63,6 +63,18 @@  psci {
 		method = "smc";
 	};
 
+	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;