Hi,
On 12. 03. 20 12:38, Major A wrote:
Hi Michal,
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".
then you can add some more prints to see where it stucks.
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. https://github.com/michalsimek/u-boot/tree/mainline-v20200312
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.
export DEVICE_TREE=... should cause that CONFIG_DEFAULT_DEVICE_TREE will remain assigned to zcu100 but SPL/u-boot proper will be using zcu102.
You can check it by looking at build folder ls spl/board/xilinx/zynqmp/ where you see which psu_init was used (recommend to make mrproper before you check this to remove old builds)
$ ls spl/board/xilinx/zynqmp/ built-in.o pm_cfg_obj.o tap_delays.o tap_delays.su zynqmp.o zynqmp.su zynqmp-zcu102-rev1.1
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";
You should look at this. configurations { default = "config_17";
config_17 { description = "zynqmp-zcu102-rev1.1"; firmware = "atf"; loadables = "uboot"; fdt = "fdt_17"; };
Thanks, Michal