[PATCH 3/3] imx: power-domain: Get rid of SMCCC dependency

[Marek Vasut]

On 4/17/22 03:01, Adam Ford wrote:

Hi,

>>> After the patch:
>>>
>>> U-Boot SPL 2022.04-00822-gc2a24a7ce5 (Apr 16 2022 - 15:45:29 -0500)
>>> PMIC:  PFUZE100 ID=0x10
>>> SEC0:  RNG instantiated
>>> Normal Boot
>>> Trying to boot from MMC2
>>
>> There should be some sort of output from ATF here, which version did you
>> use during your tests ?
> 
> I used the version from the imx8mq_evk.rst:
> 
> Note: srctree is U-Boot source directory
> Get ATF from: https://source.codeaurora.org/external/imx/imx-atf
> branch: imx_5.4.47_2.2.0
> 
> This works with U-Boot master.  I realize it has the ATF power domain
> code, but with the SMCC stuff removed, it should be irrelevant.
> 
>>
>> Did you set IMX_BOOT_UART_BASE correctly ?
>>
>> Did you set ATF_LOAD_ADDR correctly ?
>>
> If I didn't build it right, I don't think 'master' would have booted,
> but it did.  I think I built it correctly.

I find it odd that there is no print from the ATF, do check these two 
variables, I have seen hangs in ATF like this when they were not set right.

>> Do you get a hang when you revert only this specific patch ?
> 
> When I reverted the series, it booted again, but I can do a bisect
> tomorrow to narrow down the specific patch in the series that causes
> the issue.

Please do, thanks.