[PATCH v6 00/17] Introduce initial TI's J784S4 and AM69 support

[Andrew Davis]

On 12/14/23 2:10 PM, bb at ti.com wrote:
> On December 14, 2023 thus sayeth Marcel Ziswiler:
>> Hi Apurva
>>
>> Thanks!
>>
>> On Wed, 2023-12-06 at 18:07 +0530, Apurva Nandan wrote:
>>> Hello Everyone!
>>>
>>> This series will introduce basic support (SD and UART) support for Texas
>>> Instruments J784S4 EVM.
>>
>> For the whole series:
>>
>> Tested-by: Marcel Ziswiler <marcel.ziswiler at toradex.com>
>>
>> However, one thing I noticed is that with upstream TF-A I do get the following errors:
>>
>> NOTICE:  BL31: v2.10.0  (release):v2.10.0-76-g02091541d
>> NOTICE:  BL31: Built : 18:13:08, Dec 14 2023
>> ERROR:   Failed to get response (-19)
>> ERROR:   Transfer send failed (-19)
>> ERROR:   Unable to query firmware capabilities (-19)
>>
>> While with latest TF-A from downstream TI BSP (both 9.0 and 9.1 use the same versin) I do not get any errors:
>>
>> NOTICE:  BL31: v2.9(release):v2.9.0-614-gd7a7135d3
>> NOTICE:  BL31: Built : 18:40:38, Dec 14 2023
>>
> 
> What version of TIFS are you running? Not getting a response usually
> means firmware is dead or we're not using the right thread to talk.
> 

In this case the early versions of TIFS/DM for J784S4/AM69 had
a bug where the "query firmware capabilities" API was left disabled.
This is fixed in the next version of firmware, this error message
is harmless today anyway (no LPM yet).

Andrew