Re: Cubox-i 4x4 RAM [was Re: Performance of armhf boards]

[Rick Thomas <rbthomas@pobox.com>]

> On Oct 5, 2016, at 11:57 PM, Uwe Kleine-König <uwe@kleine-koenig.org> wrote:
> 
> Hello,
> 
> On 10/05/2016 10:54 PM, Vagrant Cascadian wrote:
>> I believe it actually requires u-boot to initialize ram timings and
>> various other parameters. You can trick the kernel into using more
> 
> Right, the kernel expects the boot loader to initialize RAM. I don't
> know about u-boot, but barebox edits the dtb that is passed to the
> kernel on the fly to contain the right description for all RAM it
> initialized.
> 
>> It would of course be useful to experiment with alternative methods, but
>> my guess is getting proper patches into u-boot may likely be the
>> simplest approach. It just takes some work.
> 
> So another not too hard possibility is to port barebox to your board :-)
> (This should really be easy, the i.MX6 is well supported in barebox, and
> because barebox probes itself from a device tree that already exists it
> should be really easy.)

I don’t have the skills to participate in the porting, but I’ve got two Cubox-I4 devices, one with 2GB, one with 4GB RAM that I can use for testing, if somebody else wants to try.

Enjoy!
Rick