[PATCH 1/3] arm64: dts: meson-gx: add ATF BL32 reserved-memory region

Christian Hewitt christianshewitt at gmail.com
Tue Jan 25 20:49:52 PST 2022


Add an additional reserved memory region for the BL32 trusted firmware
present in many devices that boot from Amlogic vendor u-boot.

Suggested-by: Mateusz Krzak <kszaquitto at gmail.com>
Signed-off-by: Christian Hewitt <christianshewitt at gmail.com>
---
 arch/arm64/boot/dts/amlogic/meson-gx.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
index 6b457b2c30a4..aa14ea017a61 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
@@ -49,6 +49,12 @@
 			no-map;
 		};
 
+		/* 32 MiB reserved for ARM Trusted Firmware (BL32) */
+		secmon_reserved_bl32: secmon at 5300000 {
+			reg = <0x0 0x05300000 0x0 0x2000000>;
+			no-map;
+		};
+
 		linux,cma {
 			compatible = "shared-dma-pool";
 			reusable;
-- 
2.17.1




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