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Re: [PATCH 4/7] xen/arm: add support for R-Car Gen4 PCI host controller
- To: Mykyta Poturai <Mykyta_Poturai@xxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Stewart Hildebrand <stewart.hildebrand@xxxxxxx>
- Date: Thu, 6 Mar 2025 14:15:29 -0500
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- Cc: Oleksandr Andrushchenko <Oleksandr_Andrushchenko@xxxxxxxx>, "Stefano Stabellini" <sstabellini@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Bertrand Marquis <bertrand.marquis@xxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>
- Delivery-date: Thu, 06 Mar 2025 19:16:02 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 2/24/25 04:18, Mykyta Poturai wrote:
> From: Oleksandr Andrushchenko <oleksandr_andrushchenko@xxxxxxxx>
>
> Add support for Renesas R-Car Gen4 PCI host controller.
> S4 and V4H SoCs are supported.
> Implement config read/write operations for both root and child buses.
> For accessing the child bus, iATU is used for address translation.
>
> Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@xxxxxxxx>
> Signed-off-by: Mykyta Poturai <mykyta_poturai@xxxxxxxx>
> ---
> xen/arch/arm/pci/Makefile | 1 +
> xen/arch/arm/pci/pci-host-rcar4.c | 529 ++++++++++++++++++++++++++++++
> 2 files changed, 530 insertions(+)
> create mode 100644 xen/arch/arm/pci/pci-host-rcar4.c
Can any parts of this potentially be reused for other designware-based
PCIe controllers? If so, could those parts be moved to a separate file?
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