From: Christian Hewitt christianshewitt@gmail.com
[ Upstream commit 08982a1b3aa2611c9c711d24825c9002d28536f4 ]
Add an additional reserved memory region for the BL32 trusted firmware present in many devices that boot from Amlogic vendor u-boot.
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/20220126044954.19069-3-christianshewitt@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi index 428449d98c0ae..a3a1ea0f21340 100644 --- a/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi +++ b/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi @@ -107,6 +107,12 @@ 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;