U-boot 2020.07 for rockpro64 broken ?

[William Carson]

> On Jul 30, 2020, at 7:48 AM, Søren Schmidt <soren.schmidt at gmail.com> wrote:
> 
> Hi
> 
> I just tried upgrading to the latest u-boot 2020.07 and that makes my rockpro64 stop in its tracks:
> 
> U-Boot TPL 2020.07 (Jul 30 2020 - 15:42:36)
> Channel 0: LPDDR4, 50MHz
> BW=32 Col=10 Bk=8 CS0 Row=16/15 CS=1 Die BW=16 Size=2048MB
> Channel 1: LPDDR4, 50MHz
> BW=32 Col=10 Bk=8 CS0 Row=16/15 CS=1 Die BW=16 Size=2048MB
> 256B stride
> 256B stride
> lpddr4_set_rate: change freq to 400000000 mhz 0, 1
> lpddr4_set_rate: change freq to 800000000 mhz 1, 0
> Trying to boot from BOOTROM
> Returning to boot ROM...
> 
> U-Boot SPL 2020.07 (Jul 30 2020 - 15:42:36 +0200)
> Trying to boot from MMC1
> 
> Then nothing happens. The 2020.04 version work flawlessly, any ideas ?

Is it possible your RX line is connected? I run into this on my RockPro64
all the time if I leave the serial connected.