Agilex 7 - How to use ASx4 so QSPI is accessible via the MAX10 SDM mailbox.

[Kiebach]

Hi,

We have an Agilex-7 board and would like to have access to the QSPI.  The MAX10 SDM mailbox has a set of commands that allows the QSPI to be accessed but only if the configuration scheme/mode is AS x4.

We have been successful programming POF files configured for AV-STx8, but ASx4 is not working.

Building an SOF with configuration scheme for AS x4 works.

Creating a POF file with the SOF bitstream and u-boot hex using AS x4 configuration mode works.

Setting SW2 to AS x4 configuration mode okay.

Attempting to program the QSPI with the POF is not working now.  Need help!  Maybe an explanation of all the steps necessary to use the Agilex-7 HPS in ASx4 mode.

Thanks,

Kiebach

[Fakhrul]

Hi Kiebach,

We sincerely apologize for the inconvenience caused by the delay in addressing your Forum queries. Due to an unexpected back-end issue in our system, your Forum cases, along with others, did not get through as intended. As a result, we have a backlog of cases that we are currently working through one by one.

Please be assured that we are doing everything we can to resolve this issue as quickly as possible. However, this process will take some time, and we kindly ask for your patience and understanding during this period. The cases will be attended by AE shortly.

We appreciate your patience and understanding, and we are committed to providing you with the best support possible.

Thank you for your understanding.

[Fakhrul]

Hi Kiebach,

Could you describe the symptoms or any error messages? A few important points to consider:

• If you’re using QSPI flash, ensure the serial or quad SPI flash reset pin is connected to the AS_nRST pin. The SDM must fully control the QSPI reset, so avoid connecting the quad SPI reset pin to any external host.
• For AS x4 configuration mode, set AS_CLK to 166 MHz, and use a Micron QSPI flash memory device within the 2 Gb density range.

For further details, please refer to the configuration user guide: [https://cdrdv2.intel.com/v1/dl/getContent/813320?fileName=ug-ag-config-683673-813320.pdf].

Regards,

Fakhrul