Hello everyone! I’m wondering whether it’s possible to use duo’s first-stage bootloader to burn new image (SPINAND image for example) using uart interface. There is no information about first-stage bootloader capabilities, so maybe someone had experience in this area? I know that such mechanisms work in STM32 microcontrollers, so maybe it is also possible to update duo’s image in emergency situations when u-boot is broken and BOOTROM is only thing to rely on. Any information related to this topic would be helpful, thanks!
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Agreed, this – and USB – access to the processor (and thus write SPI NAND/NOR) would be ideal. I have so far been unable to get cvi_utask to present itself on the USB bus. Hence I use a NOR chip flashed with pxeboot for recovery.
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