[PATCH 11/11] vexpress64: Add ARMv8R-64 board variant

[Tom Rini]

On Fri, Mar 04, 2022 at 04:30:18PM +0000, Andre Przywara wrote:

> From: Peter Hoyes <Peter.Hoyes at 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---memory/BaseR-Platform-memory-map
> 
> Signed-off-by: Peter Hoyes <Peter.Hoyes at arm.com>
> [Andre: rebase and add Linux kernel header]
> Signed-off-by: Andre Przywara <andre.przywara at arm.com>

Added Peter to the MAINTAINERS file and applied to u-boot/next, thanks!

-- 
Tom
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