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| author | Neil Armstrong <narmstrong@baylibre.com> | 2017-10-11 17:23:12 +0200 |
|---|---|---|
| committer | Kevin Hilman <khilman@baylibre.com> | 2017-10-11 17:23:17 -0700 |
| commit | 4ee8e51b9edfe7845a094690a365c844e5a35b4b (patch) | |
| tree | 2d81962410009e8fc154183c579b3c22ae22262d /arch/arm64/boot/dts | |
| parent | a1d759cf528064e73c06d318cd03213c4eafbc35 (diff) | |
| download | linux-4ee8e51b9edfe7845a094690a365c844e5a35b4b.tar.gz linux-4ee8e51b9edfe7845a094690a365c844e5a35b4b.tar.bz2 linux-4ee8e51b9edfe7845a094690a365c844e5a35b4b.zip | |
ARM64: dts: meson-gxl: Add alternate ARM Trusted Firmware reserved memory zone
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 <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Diffstat (limited to 'arch/arm64/boot/dts')
| -rw-r--r-- | arch/arm64/boot/dts/amlogic/meson-gxl.dtsi | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi index 19c001abb0c5..d3a51031a711 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 { |