* [PATCH AUTOSEL 4.19 05/11] arm64: dts: meson-gx: add ATF BL32 reserved-memory region
[not found] <20220215153104.581786-1-sashal@kernel.org>
@ 2022-02-15 15:30 ` Sasha Levin
0 siblings, 0 replies; only message in thread
From: Sasha Levin @ 2022-02-15 15:30 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Christian Hewitt, Mateusz Krzak, Neil Armstrong, Kevin Hilman,
Sasha Levin, robh+dt, devicetree, linux-arm-kernel,
linux-amlogic
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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