From: Christian Hewitt <christianshewitt@xxxxxxxxx> [ 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@xxxxxxxxx> Signed-off-by: Christian Hewitt <christianshewitt@xxxxxxxxx> Reviewed-by: Neil Armstrong <narmstrong@xxxxxxxxxxxx> Reviewed-by: Kevin Hilman <khilman@xxxxxxxxxxxx> Signed-off-by: Neil Armstrong <narmstrong@xxxxxxxxxxxx> Link: https://lore.kernel.org/r/20220126044954.19069-2-christianshewitt@xxxxxxxxx Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- 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 6b457b2c30a4b..aa14ea017a613 100644 --- a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi +++ b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi @@ -49,6 +49,12 @@ 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
