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Sindhu Vadde
Associate III
March 9, 2022
Question

Regarding Stm32mp157a booting Issue

  • March 9, 2022
  • 1 reply
  • 1731 views

Hi

We are using stm32mp157a-dk1 board.We are writing code in bare metal.Its working fine when we run in SRAM.But when we jump to DRM its hanging.

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1 reply

PatrickF
Technical Moderator
March 9, 2022

Hi,

Before jumping to DDR, are you already able to do various bytes/words read/write from/to DDR ?

This is a first step to validate correct initialization of DDR.

Maybe good to look at TF-A code which do similar (BL2: init DDR, load BL33 and later BL32 jump to it). https://wiki.st.com/stm32mpu/wiki/TF-A_overview#BL2

Maybe @srikanth​ could help you as working as well on a bare-metal project https://community.st.com/s/question/0D53W00001KU7otSAD/stm32mp157xx-ddr-accessing-for-the-for-the-core-1

Regards.

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Sindhu Vadde
Associate III
March 9, 2022

DDR write read is working properly.