Re: [PATCH V2 0/4] Anbernic RGxx3 Bootloader Fixes

Chris Morgan
2024-09-24T02:14:16Z

On Sun, Sep 22, 2024 at 02:43:11PM +0100, Peter Robinson wrote:
> Hi Chris,
>
> > Update the Anbernic RGxx3 "device" to use upstream device-trees,
> > add logic to detect a different vdd_cpu regulator, and implement a
> > fix to allow the panel auto-detection to run when using mainline
> > A-TF.
> >
> > Note that *Linux* still cannot use mainline A-TF because of the missing
> > SCMI clock and reset functionality, but this patch series at least
> > ensures that this board can boot once Linux is ready.
>
> Have you got a link to this upstream in the kernel lists? Is there
> patches posted? I think I have seen a similar issue when playing with
> mainline TF-A the other day on the Quartz64.
>
> Peter

I don't. I just remember when I was testing A-TF previously (I've been
following the RK3568 A-TF status since it was first submitted) that
it would fail because of missing cpu clocking. Basically the cpu device
tree node has a defined link to the SCMI clock that's provided by A-TF.
Except that mainline A-TF doesn't do this, so it would get stuck in
deferred probe hell. The *real* solution I think is to get SCMI clk
and reset support in mainline A-TF, but unfortunately I don't know how
to do that at the moment.

Chris

>
> > Chris Morgan (4):
> > board: rockchip: Convert Anbernic RGxx3 to OF_UPSTREAM
> > board: rockchip: Add vdd_cpu reg fixup for RGXX3 Series
> > board: rockchip: Remove ARM SCMI Support from RGxx3
> > board: rockchip: Enable PD_VO before driver access
> >
> > .../dts/rk3566-anbernic-rg353p-u-boot.dtsi | 34 ++
> > .../arm/dts/rk3566-anbernic-rgxx3-u-boot.dtsi | 52 ---
> > arch/arm/dts/rk3566-anbernic-rgxx3.dts | 28 --
> > arch/arm/mach-rockchip/rk3568/rk3568.c | 6 +
> > board/anbernic/rgxx3_rk3566/MAINTAINERS | 4 +-
> > board/anbernic/rgxx3_rk3566/rgxx3-rk3566.c | 359 +++++++++++++++---
> > configs/anbernic-rgxx3-rk3566_defconfig | 12 +-
> > 7 files changed, 347 insertions(+), 148 deletions(-)
> > create mode 100644 arch/arm/dts/rk3566-anbernic-rg353p-u-boot.dtsi
> > delete mode 100644 arch/arm/dts/rk3566-anbernic-rgxx3-u-boot.dtsi
> > delete mode 100644 arch/arm/dts/rk3566-anbernic-rgxx3.dts
> >
> > --
> > 2.34.1
> >