AnsweredAssumed Answered

How to add/change spi nor flash support into sf_probe in uboot

Question asked by peng.cheng-hui on Nov 6, 2017
Latest reply on Jan 23, 2018 by Anuradha Ranasinghe

Hi there,


I'm using a custom made i.MX6dl-sabresd board to develop our product. We change the spi flash to S25FL128S and I can't probe the flash corretly in u-boot. When I use

sf probe

in u-boot, I got message:

SF: Unsupported flash IDs: manuf 00, jedec 0000, ext_jedec 0000

Is there any document that explains how to add the support for new SPI NOR flash in U-boot? or what files I should update/modify to make S25FL128S be detected in u-boot and kernel?


For more detailed,
1. The custom made board is almost as same as standard i.MX6dl-sabresd reference board.

2. I don't have standard i.MX6dl-sabresd reference board now, so I can't try the "sf" command on it.
3. The BSP release used is  Yocto project 2.1(release L4.1.15_2.1.0).
4. Hardware changed eMMC, ram, spi flash from standard platform.

5. I'm NOT going to boot-up system from spi nor flash, I will boot it up from eMMC, I just want to make sure the spi nor flash is readable and writable.


Thank you for your patient.


Best Regards,
PENG, Cheng-Hui