reset command doesn't work on MT7628 (CPU: MediaTek MT7628A ver:1 eco:2)

[Stefan Roese]

Hi Andrew,

On 12.08.20 14:04, Andrii Voloshyn wrote:
> Hi Stefan,
> 
>   > Hi Andrew,
>   >
>   > (added Weijie to Cc)
>   >
>   > On 12.08.20 09:18, Andrii Voloshyn wrote:
>   > >    Hi there,
>   > >
>   > >    There is one issue, I experience with (U-Boot 2020.07) on MT7628DAN, "reset" command issued in hush prompt
>   > >    causes board to hang, until I do a power cycle. On the other hand there is no such issue on mt7688 board.
>   >
>   > Do you see no further output? Or is it perhaps stuck at the DDR init
>   > code in SPL? Can you please post the log (complete boot log with reset
>   > command)?
> 
> There is only "resetting..." printed, once the reset command is executed.

I see. Thanks.

>  By the way, I am not using SPL loader.

Why not? Did you give the version with SPL a try? Here most of the
lowlevel init stuff is executed. Something might be missing in the
general HW setup if its not used.

How are you running the non-SPL (main) U-Boot on your board? Do you
load it via an old U-Boot? Or is it configured for SPI flash usage
without SPL instead?

> Console output below:
> 
> U-Boot 2020.07
> 
> CPU:   MediaTek MT7628A ver:1 eco:2
> Boot:  DDR2, SPI-NOR 3-Byte Addr, CPU clock from XTAL
> Clock: CPU: 580MHz, Bus: 193MHz, XTAL: 40MHz
> Model: test
> DRAM:  64 MiB
> Loading Environment from SPI Flash... SF: Detected w25q256 with page size 256 Bytes, erase size 4 KiB, total 32 MiB
> OK
> Net:
> Warning: eth at 10110000 (eth0) using random MAC address - ba:f6:29:35:59:b5
> eth0: eth at 10110000
> Hit any key to stop autoboot:  0
> => reset
> resetting ...

Thanks,
Stefan