On Fri, Mar 04, 2022 at 04:30:18PM +0000, Andre Przywara wrote:
From: Peter Hoyes Peter.Hoyes@arm.com
The ARMv8-R64 architecture introduces optional VMSA (paging based MMU) support in the EL1/0 translation regime, which makes that part mostly compatible to ARMv8-A.
Add a new board variant to describe the "BASE-R64" FVP model, which inherits a lot from the existing v8-A FVP support. One major difference is that the memory map in "inverted": DRAM starts at 0x0, MMIO is at 2GB [1].
- Create new TARGET_VEXPRESS64_BASER_FVP target, sharing most of the exising configuration.
- Implement inverted memory map in vexpress_aemv8.h
- Create vexpress_aemv8r defconfig
- Provide an MMU memory map for the BASER_FVP
- Update vexpress64 documentation
At the moment the boot-wrapper is the only supported secure firmware. As there is no official DT for the board yet, we rely on it being supplied by the boot-wrapper into U-Boot, so use OF_HAS_PRIOR_STAGE, and go with a dummy DT for now.
[1] https://developer.arm.com/documentation/100964/1114/Base-Platform/Base---mem...
Signed-off-by: Peter Hoyes Peter.Hoyes@arm.com [Andre: rebase and add Linux kernel header] Signed-off-by: Andre Przywara andre.przywara@arm.com
Added Peter to the MAINTAINERS file and applied to u-boot/next, thanks!