On Fri, Mar 04, 2022 at 04:30:16PM +0000, Andre Przywara wrote:
In preparation for the ARMv8-R64 FVP support, which has DRAM mapped at 0x0, generalise the page table generation, by using symbolic names for the address ranges instead of fixed numbers.
We already define the base of the DRAM and MMIO regions, so just use those symbols in the page table description. Rename V2M_BASE to the more speaking V2M_DRAM_BASE on the way.
On the VExpress memory map, the address space right after 4GB is of no particular interest to software, as the whole of DRAM is mapped at 32GB instead. The first 2 GB alias to the lower 2GB of DRAM mapped below 4GB, so we skip this part and map some more of the high DRAM, should anyone need it.
Signed-off-by: Andre Przywara andre.przywara@arm.com
Applied to u-boot/next, thanks!