[U-Boot] DE10 Nano U-Boot v2019.04 Issues

[Simon Goldschmidt]

On Mon, Apr 29, 2019 at 4:36 PM rafael mello <rafaelmello_3 at hotmail.com> wrote:
>
> Hello Simon,
>
> Adding the "clock-frequency = <100000000>;" line to the dts file solved the issue,

Great to hear that. I'll post a patch to fix that.

> But I had found another solution before reading your repply.
> There is one dtsi file missing for the de10 nano board, the file should be named
> "socfpga_cyclone5_de10_nano-u-boot.dtsi" and it's content should be the same as
> the "socfpga_cyclone5_de0_nano_soc-u-boot.dtsi".

Not exactly. There are "u-boot.dtsi" files for devicetrees copied by
Linux. It's a
make automatism to ensure we can use unmodified Linux devicetress and add
U-Boot specific changes in different files.

However, the de10 board does not exist in Linux, so there's no point
in splitting
U-Boot specific code to a "u-boot.dtsi" file since the whole
devicetree is U-Boot
specific.

Regards,
Simon

> For some reason the "*-u-boot.dtsi" files are loaded even whan not called in the dts file,
> and the clock-frequency definition was in that file for all the cyclone5 boards, except for
> the de10 nano. Creating the file made the board follow the current pattern/standard and
> solved the issue.
> Maybe a patch is required.
>
> I'm attaching the socfpga_cyclone5_de10_nano-u-boot.dtsi file and the socfpga_cyclone5_de10_nano.dts files
>
> Thank you  very much for the help, even with the solution that I found, I failed to see that the clock-frequency was the real issue.
>
> Best regards,
> Rafael Villatore