* zynqmp: Intended use of ZYNQMP_PSU_INIT_ENABLED
@ 2025-08-26 19:53 Sean Anderson
2025-08-27 5:03 ` Michal Simek
0 siblings, 1 reply; 2+ messages in thread
From: Sean Anderson @ 2025-08-26 19:53 UTC (permalink / raw)
To: Michal Simek; +Cc: U-Boot Mailing List
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.
--Sean
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: zynqmp: Intended use of ZYNQMP_PSU_INIT_ENABLED
2025-08-26 19:53 zynqmp: Intended use of ZYNQMP_PSU_INIT_ENABLED Sean Anderson
@ 2025-08-27 5:03 ` Michal Simek
0 siblings, 0 replies; 2+ messages in thread
From: Michal Simek @ 2025-08-27 5:03 UTC (permalink / raw)
To: Sean Anderson; +Cc: U-Boot Mailing List
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
^ permalink raw reply [flat|nested] 2+ messages in thread
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2025-08-26 19:53 zynqmp: Intended use of ZYNQMP_PSU_INIT_ENABLED Sean Anderson
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