Is there any documentation or guidance on how to configure Yocto to deploy a custom u-boot image? I've been following https://wiki.st.com/stm32mpu/wiki/How_to_configure_U-Boot_for_your_board and https://wiki.stmicroelectronics.cn/stm32mpu/wiki/STM32M...

We are experiencing an issue where, in approximately 1 in 1000 cases, we don't get a TxRxCpltCallback callback after starting a SPI DMA transfer from an ISR on the ARM-M4 (coprocessor). The transfer appears to have taken place as all the bytes are re...