[PATCH v2 1/6] dm: pci: add option to map virtual system memory base address

[Simon Glass]

On Thu, 15 Jul 2021 at 12:54, Daniel Schwierzeck
<daniel.schwierzeck at gmail.com> wrote:
>
> On MIPS the DRAM start address respectively CONFIG_SYS_SDRAM_BASE
> is still used as a virtual, CPU-mapped address instead of being used
> as physical address. Converting all MIPS boards and generic MIPS code
> to fix that is not trivial. Due to the approaching deadline for
> PCI DM conversion, this workaround is required for MIPS boards with
> PCI support until the CONFIG_SYS_SDRAM_BASE issue could be solved.
>
> Add a compile-time option to let the PCI uclass core optionally map
> the DRAM address to a physical address when adding the PCI region
> of type PCI_REGION_SYS_MEMORY.
>
> Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck at gmail.com>
>
> Reviewed-by: Stefan Roese <sr at denx.de>
> ---
>
> (no changes since v1)
>
>  drivers/pci/Kconfig      | 13 +++++++++++++
>  drivers/pci/pci-uclass.c |  9 ++++++---
>  2 files changed, 19 insertions(+), 3 deletions(-)

Reviewed-by: Simon Glass <sjg at chromium.org>