RE: porting iwg20m to isar-cip-core

[<daniel.sangorrin@toshiba.co.jp>]

Hi Jan,

> From: isar-users@googlegroups.com <isar-users@googlegroups.com> On Behalf Of Jan Kiszka
> On 05.06.19 04:16, Daniel Sangorrin wrote:
> > I wanted to use uImage because that's what is used in the
> > iwg20m manual, and it's known to work on Deby as well.
> > Ref:
> https://gitlab.com/cip-project/cip-core/deby/blob/master/poky/meta-cip-iwg20m/README.IWG20M.txt
> > Do you suggest that we should use bootz instead of bootm?
> > Is uImage not recommended or something? I have used uImage in many boards.
> 
> BTW, we chose bootz (and distro boot) in order to be able to boot also stock
> Debian kernels - which work on a (slowly) increasing number of boards. I.e. Isar
> is modeled around the ideal case, not legacy ones.

I was surprised to see so many u-boot debian packages:
https://packages.debian.org/search?keywords=u-boot

For now, please let me go the legacy way (ask users to 'setenv' things). Do you have an example of how to emulate boot.scr on older u-boot versions. I

Iwamatsu-san is going to upgrade/mainstream the u-boot support for Renesas iwg20m. Once that is done I will modify the recipe.
# One thing though: if the flash process fails, you really need to get a JTAG device to unbrick the board (not sure if OpenOCD JTAG devices would be supported).

Thanks,
Daniel

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