DRA821U: xSPI can boot Cypress OSPI memory but cannot boot Micron OSPI memory

Charles,

https://software-dl.ti.com/jacinto7/esd/processor-sdk-linux-j7200/10_01_08_01/exports/docs/linux/Foundational_Components/Kernel/Kernel_Drivers/QSPI.html

Read delay needs change even in U-Boot/SPL

- Keerthy

Hi Keerthy,

Yes, we did change both in U-Boot and kernel device tree as you pointed out above when we switched chip, but Micro chip didn't boot up. You mentioned SPL, is it the same thing as U-Boot change? Or some extra change in addition to U-Boot device tree file k3-j7200-som-p0.dtsi?

What else may cause Micro chip not boot?

Thanks,

Charles

Hi Charles,

Sorry for the delayed response.

What issue are you getting with the micron flash? Are there any bootlogs which you can share for the micron boot.

Regards,
Tanmay

Hi Tanmay,

The issue is we can read/write Micron OSPI flash in U-Boot (after booting from DFU), but we cannot boot from it using xSPI boot mode.

Hi,

What is the bootpin configuration being used?

Are there any logs visible? or no logs are seen in xSPI boot mode?

When stuck, can you check the PC of mcu_r5_0_0 core using any debugger (CCs or lauterbach, whatever you have).

Regards,
Tanmay

Tanmay Patil said:

What is the bootpin configuration being used?

Boot Switch Setting = 0000 1010
Boot Switch ID         = 0123 4567

MCU Switch Setting = 0110 0000
MCU Switch ID         = 2345 6789

Tanmay Patil said:

Are there any logs visible? or no logs are seen in xSPI boot mode?

No logs at all.

Tanmay Patil said:

When stuck, can you check the PC of mcu_r5_0_0 core using any debugger (CCs or lauterbach, whatever you have).

We are in process on this and will update when the info is available.

Hi,

Charles Mao said:

We are in process on this and will update when the info is available.

Okay, waiting for this info.

Regards,
Tanmay