Re: [RFC PATCH v6 00/11] hw/ssi: imx_spi: Fix various bugs in the imx_spi model

[Philippe Mathieu-Daudé]

Hi Ben,

On 1/13/21 4:29 AM, Bin Meng wrote:
> On Wed, Jan 13, 2021 at 2:35 AM Philippe Mathieu-Daudé <f4bug@amsat.org> 
> wrote:
>>
>> Hi,
>>
>> As it is sometimes harder for me to express myself in plain
>> English, I found it easier to write the patches I was thinking
>> about. I know this doesn't scale.
>>
>> So this is how I understand the ecSPI reset works, after
>> looking at the IMX6DQRM.pdf datasheet.
>>
>> This is a respin of Ben's v5 series [*].
>> Tagged RFC because I have not tested it :)
> 
> Unfortunately this series breaks SPI flash testing under both U-Boot
> and VxWorks 7.

Thanks for testing :) Can you provide the binary tested and the command
line used? At least one, so I can have a look.

>> Sometimes changing device reset to better match hardware gives
>> trouble when using '-kernel ...' because there is no bootloader
>> setting the device in the state Linux expects it.
>>
> 
> Given most of the new changes in this RFC series are clean-ups, I
> suggest we apply the v5 series unless there is anything seriously
> wrong in v5, IOW, don't fix it unless it's broken.
> 
> Thoughts?

Up to the maintainer :)

The IMX6DQRM datasheet is available here:
https://community.nxp.com/t5/i-MX-Processors-Knowledge-Base/i-MX-6DQ-Reference-Manual-IMX6DQRM-R2-Part-1/ta-p/1115983
https://community.nxp.com/t5/i-MX-Processors-Knowledge-Base/i-MX-6DQ-Reference-Manual-IMX6DQRM-R2-Part-2/ta-p/1118510

Regards,

Phil.