[PATCH RFC 0/9] initial U-Boot SPL support on Amlogic GX SoCs

[Ferass El Hafidi]

On Sun Sep 7, 2025 at 2:36 PM UTC, Ferass El Hafidi wrote:
> This RFC/RFT patch series adds support for U-Boot SPL booting on Amlogic
> GX SoCs, replacing the historical "bl2.bin" binary that runs as BL2 on
> these boards.
>
> Boards tested:
>  - Libre Computer LaFrite (S805X, 512 MB)
>  - Libre Computer LePotato (S905X, 1 GB)
>  - Videostrong KII Pro (S905)
>  - Xiaomi Mi TV Stick (S805Y) - downstream defconfig [1]
>  - (ODROID-C2 (S905) - at some point early in development)
>
> Each of these boards were tested booting mainline u-boot and TF-A BL31,
> either from an SD card or using Ymodem, and then booting to Linux.
>
> More testing is, of course, very much welcome.  In particular, further
> testing of other boards that could not be tested, of the ODROID-C2, and
> of the 2 GB LePotato would be appreciated.
>
> Currently known issues:
>  - LPDDR2/LPDDR3 support not implemented
>  - some DRAM rank modes are not supported
>  - eMMC booting is broken (pwrseq?)
>  - SPI boot is untested
>  - we are quite limited in space, so e.g. the clock driver does not fit
>    (TPL might be considered in the future)
>
> See doc/board/amlogic/spl.rst for building and installation instructions.
>
> This patch series depends on Jonas Karlman's amlimage work, which was
> sent in the mailing list [2].  It has been rebased for resending as part 
> of this patch series.  Thanks Jonas!
>
> I would like to also thank Libre Computer and MNT Research for donating
> boards to me and the rest of the linux-amlogic community for the
> invaluable help.
>
> [1]: https://scm.dersco.re/amlogic/u-boot-kii-pro.git/commit/?h=wip/spl-aquaman-2025.08&id=d030951d0aaac04f1e2cc8a8eb01eb662a782f21
> [2]: https://lore.kernel.org/all/20250103215904.2590769-1-jonas@kwiboo.se/
>

Hi all,
Thank you for all your feedback, I sent a v3 that hopefully addresses
them all:

	https://lore.kernel.org/u-boot-amlogic/20251008-spl-gx-v3-0-5999637df4b9@postmarketos.org/T/#t

Cheers!