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 0edd137151f89..47cbb0a1eb183 100644 --- a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi +++ b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi @@ -43,6 +43,12 @@ 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;