Re: [Xen-devel] [PATCH V2 0/3] Renesas Stout board support (R-Car Gen2)

[Oleksandr <olekstysh@xxxxxxxxx>]

On 01.02.19 14:37, Oleksandr Tyshchenko wrote:
> From: Oleksandr Tyshchenko <oleksandr_tyshchenko@xxxxxxxx>
>
> Hi, all.

Hi, all

gentle reminder...


> The purpose of this patch series is to add required support to be able to run
> Xen on Renesas Stout board [1] which uses SCIFA compatible UART as a console
> interface.
>
> Actually Xen already has support for SCIF compatible UARTs which are used on
> Renesas Lager (R-Car Gen2), Salvator-X, H3ULCB/M3ULCB (R-Car Gen3) and other
> development boards. So this patch series extends existing support to be able
> to handle both interfaces.
>
> ----------
>
> Current patch series is based on the following commit 
> 3389a8dc8c5753a3c84744923cd0193395e3f2a9
> and tested on Stout (ARM32) and H3ULCB (ARM64) boards.
>
> You can find current patch series here:
> repo: https://github.com/otyshchenko1/xen.git branch: stout_upstream
>
> You can find previous discussion here:
> https://www.mail-archive.com/xen-devel@xxxxxxxxxxxxxxxxxxxx/msg21058.html
>
> Please note, that current patch series doesn’t have the following patches:
> - xen/arm: drivers: scif: Remove unused #define-s (already upstreamed)
> - xen/arm: Reuse R-Car Gen2 platform code for Stout board (was dropped)
> but has new one:
> - xen/arm: Clarify usage of earlyprintk for Lager board
>
> ----------
>
> In order to run Xen on Stout board you need "PSCI-enabled" U-Boot (not 
> upsteamed yet).
> You can find corresponding patches for U-Boot here:
> http://u-boot.10912.n7.nabble.com/PATCH-0-3-PSCI-support-for-r8a7790-SoC-Lager-Stout-boards-td357352.html
>
> Have a plan to update Xen Wiki regarding this board.
>
> [1] https://elinux.org/R-Car/Boards/Stout
>
> ----------
>
> Oleksandr Tyshchenko (3):
>    xen/arm: drivers: scif: Add support for SCIFA compatible UARTs
>    xen/arm: Clarify usage of earlyprintk for Lager board
>    xen/arm: Add SCIFA UART support for early printk
>
>   docs/misc/arm/early-printk.txt     |   2 +-
>   xen/arch/arm/arm32/debug-scifa.inc |  51 ++++++++++++++
>   xen/drivers/char/scif-uart.c       | 139 +++++++++++++++++++++++++++----------
>   xen/include/asm-arm/scif-uart.h    |  44 ++++++++++--
>   4 files changed, 194 insertions(+), 42 deletions(-)
>   create mode 100644 xen/arch/arm/arm32/debug-scifa.inc
--
Regards,

Oleksandr Tyshchenko


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