From 7a51c88c35ae6fbd858a50eef3f30719242659c5 Mon Sep 17 00:00:00 2001 From: Neil Armstrong Date: Wed, 11 Oct 2017 17:23:12 +0200 Subject: [PATCH] ARM64: dts: meson-gxl: Add alternate ARM Trusted Firmware reserved memory zone commit 4ee8e51b9edfe7845a094690a365c844e5a35b4b upstream. This year, Amlogic updated the ARM Trusted Firmware reserved memory mapping for Meson GXL SoCs and products sold since May 2017 uses this alternate reserved memory mapping. But products had been sold using the previous mapping. This issue has been explained in [1] and a dynamic solution is yet to be found to avoid loosing another 3Mbytes of reservable memory. In the meantime, this patch adds this alternate memory zone only for the GXL and GXM SoCs since GXBB based new products stopped earlier. [1] http://lists.infradead.org/pipermail/linux-amlogic/2017-October/004860.html Fixes: bba8e3f42736 ("ARM64: dts: meson-gx: Add firmware reserved memory zones") Reported-by: Jerome Brunet Signed-off-by: Neil Armstrong Signed-off-by: Kevin Hilman Signed-off-by: Greg Kroah-Hartman --- arch/arm64/boot/dts/amlogic/meson-gxl.dtsi | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi index d8dd3298b15c..fb8d76a17bc5 100644 --- a/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi +++ b/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi @@ -49,6 +49,14 @@ / { compatible = "amlogic,meson-gxl"; + + reserved-memory { + /* Alternate 3 MiB reserved for ARM Trusted Firmware (BL31) */ + secmon_reserved_alt: secmon@05000000 { + reg = <0x0 0x05000000 0x0 0x300000>; + no-map; + }; + }; }; ðmac { -- 2.20.1