Questions about bringing up MT7623 board

[John Crispin]

On 11/02/18 11:33, Kristian Evensen wrote:
> On Sat, Feb 10, 2018 at 11:02 PM, Kristian Evensen
> <kristian.evensen at gmail.com> wrote:
>> Hello,
>>
>> With OpenWRT, I based the dts for the U7623 on mt7623-eMMC.dts. Since
>> this file is not available in the mainline kernel, I decided to use
>> the DTS for Banana Pi R2 as the boards seem fairly similar (and the
>> initial goal is just to have a kernel that boots). I got a 4.14 config
>> from a repo I found on the BPI-forum
>> (https://github.com/frank-w/BPI-R2-4.14), added missing config symbols
>> for 4.15, compiled a kernel and appended the dtb to the uImage. So
>> far, so good and the kernel compiles just fine.
> I see that I made some mistakes and missed some details in the
> description. Sorry about that, I blame the lack of coffee :)
>
> I did not use the DTS for the R2, as I had already seen that 4.9
> failed to boot with the R2 DTS (also the no output-error). What I did
> was that I took the mt7623-eMMC.dts and updated it (basically
> uncommenting the switch-section) so that the compiler would not hit
> any errors/warnings. I also reduced the amount of memory, as my board
> only has 512MB RAM.
>
> BR,
> Kristian
Have you tried turning on early printk ?

     John