diff options
| author | Sudeep Holla <sudeep.holla@arm.com> | 2025-05-09 16:46:40 +0100 |
|---|---|---|
| committer | Sudeep Holla <sudeep.holla@arm.com> | 2025-05-12 18:51:54 +0100 |
| commit | bbb59b3614a7f0f5cbf4bfc5159c4e6ed81401cb (patch) | |
| tree | 1733b6224e3193b2f2a27758cce8432a583b9a92 | |
| parent | 44845ea83d5e144b746ad0b5b9976e7fd3a843f9 (diff) | |
arm64: dts: fvp: Reserve 64MB for the FF-A firmware in memory map
Reserve 64MB of memory at the end of the first bank of DRAM on FVP model.
This is mainly for FF-A firmware use, as required by various firmware
configurations using the Firmware Framework for Arm (FF-A). This prevents
the kernel from overwriting the firmware region.
This is also useful when running other firmware configurations(non FF-A
based) that rely on usage of 64MB at the end of first DRAM bank.
Necessary for proper coexistence of firmware(FF-A partitions) and the OS.
Message-Id: <20250509154640.836093-3-sudeep.holla@arm.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
| -rw-r--r-- | arch/arm64/boot/dts/arm/fvp-base-revc.dts | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/boot/dts/arm/fvp-base-revc.dts b/arch/arm64/boot/dts/arm/fvp-base-revc.dts index 755b1407c4dc..a5024075e3f3 100644 --- a/arch/arm64/boot/dts/arm/fvp-base-revc.dts +++ b/arch/arm64/boot/dts/arm/fvp-base-revc.dts @@ -201,7 +201,7 @@ memory@80000000 { device_type = "memory"; - reg = <0x00000000 0x80000000 0 0x80000000>, + reg = <0x00000000 0x80000000 0 0x7c000000>, <0x00000008 0x80000000 0 0x80000000>; }; |