[PATCH 00/45] AT91, at91sam9x5ek updates

[Jean-Christophe PLAGNIOL-VILLARD]

> On Mar 8, 2017, at 12:34 AM, Sam Ravnborg <sam at ravnborg.org> wrote:
> 
> Hi Andrey.
> 
> On Mon, Mar 06, 2017 at 02:53:11PM -0800, Andrey Smirnov wrote:
>> Hi everyone,
>> 
>> I recently had a chance to work with at91sam9x5ek board and as a part
>> of that effort I converted the code to support features found in
>> Barebox for i.MX based SoCs. Most notably this patchset converts
>> at91sam9x5ek to use multi-image PBL build process as well as adds
>> support for board initialization from attached devicetree blob.
> 
> Impressive series - looks good! And timing was good.
> 
> I have a proprietary at91sam9263 based bord that is familiar
> with the 9263 evaluation kit.
> The current bootloader is latest bootstrap + an ancient U-Boot.
> As we have another board (i.MX6 based) there is some synergy into
> using the same bootloader on both boards.
> 
> Can you give any hints on what needs to be done on top of
> your patch-set to support the 9263 evalutation kit?
> 
> When booting from an SD-Card/NOR-Flash/USB would I then need
> to use at91bootstrap, or can I use only barebox?
> 
> If I move forward with this and I can find an 9263
> evaluation kit I would then also update this.
On 9263 the sram is huge so you can build barebox as first stage

I add this a long time ago on usb_a9263_bootstrap_defconfig
or other (all the EK).

This will build a barebox that can load you image from multiple source in a sequence

and then use a std barebox

To switch to DT you will have to import the DT I did for the kernel
and replace the hw i2c by a i2c gpio as the i2c IP on at91 has a lot of quirks
and for barebox it will not make sense to port it

Best Regards,
J.