ZynqMP boot: no messages from SPL other than "Debug uart enabled"
andras.g.major at gmail.com
Thu Mar 12 12:38:01 CET 2020
> First of all I sent v2 because of dt changes to see 1.1 revision and I
> have also tested it on real HW.
Just tried your patch v2 against mainline master branch, it still
doesn't work on my board. I also checked your mainline-v20200312
branch, it's exactly the same: no output from any UART other than "Debug
uart enabled" on UART0 if I enable it in menuconfig as "early UART".
>> For some reason, that's no enough: I have to manually set
>> CONFIG_DEVICE_TREE because xilinx_zynqmp_virt_defconfig sets it wrong.
>> In any case, behaviour is exactly the same as before.
> With latest my queue it should be enough.
It's the same. CONFIG_DEFAULT_DEVICE_TREE becomes "zynqmp-zcu100-revC"
whatever I do, there is no trace of the value specified in the
DEVICE_TREE environment variable.
> But I think that latest mainline should setup default in ITS properly.
> You can check it by looking at u-boot.its when build is done and find
> default configuration option which should point to 1.1 dt.
From the build using your mainline-v20200312 branch:
default = "config_1";
where config_1 is
description = "avnet-ultra96-rev1";
> Here are jtag steps I have run.
I haven't set up JTAG yet.
More information about the U-Boot