Hi there,
Good day to you guys in new year. I am seeking advice on 'reviving' bricked device. I have recently bricked my customer's device that is running their own version of Uboot. Something went wrong during update. I already have a working version of a binary. Uboot lies in NOR flash chip, and the layout is as follows:
uboot 0x00000000 - 0x000dffff (size 0x000e0000, 896KB) shmoo 0x000e0000 - 0x000effff (size 0x00010000, 64KB) uboot-env 0x000f0000 - 0x000fffff (size 0x00010000, 64KB)
I'm not an Uboot expert, but I think 'u-boot.bin' contains environment variables as well (or so it seems scanning it using 'strings'). How should I program the chip so that it layout after the programming conforms to the above memory map ?
Programming the 'executable' seems easy enough, I just put it at the address 0x0, but how do I program environment variables at 0xf0000 ? Or is this portion only for new environment variables ?
I would appreciate any sort of clues and suggestions,
Best regards,
-ŁW