[PATCH AUTOSEL 4.19 05/11] arm64: dts: meson-gx: add ATF BL32 reserved-memory region

[PATCH AUTOSEL 4.19 05/11] arm64: dts: meson-gx: add ATF BL32 reserved-memory region

[Sasha Levin]

From: Christian Hewitt <christianshewitt@gmail.com>

[ Upstream commit 76577c9137456febb05b0e17d244113196a98968 ]

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@gmail.com>
Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lore.kernel.org/r/20220126044954.19069-2-christianshewitt@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 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 b8dc4dbb391b6..4252119bfd901 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
@@ -41,6 +41,12 @@ secmon_reserved_alt: secmon@5000000 {
 			no-map;
 		};
 
+		/* 32 MiB reserved for ARM Trusted Firmware (BL32) */
+		secmon_reserved_bl32: secmon@5300000 {
+			reg = <0x0 0x05300000 0x0 0x2000000>;
+			no-map;
+		};
+
 		linux,cma {
 			compatible = "shared-dma-pool";
 			reusable;
-- 
2.34.1


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