zynqmp: Intended use of ZYNQMP_PSU_INIT_ENABLED

Michal Simek michal.simek at amd.com
Wed Aug 27 07:03:08 CEST 2025


Hi Sean,

On 8/26/25 21:53, Sean Anderson wrote:
> Hi Michal,
> 
> How is ZYNQMP_PSU_INIT_ENABLED supposed to work? U-Boot runs from DRAM,
> and one of the things that psu_init does is initialize DRAM. This tends
> not to go very well. So I am wondering how this config is supposed to
> work? Note I am not talking about the SPL variant of this option.
> 
> I am wondering if we even need this config in the first place.
This is for configuration where small/mini u-boot is running out of OCM not DDR.

Thanks,
Michal





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