[U-Boot] x86: Updating u-boot.bin vs u-boot.rom

Hi Bin, Hi Simon,

I'm currently trying to only update the u-boot.bin part in the SPI NOR chip instead of updating the complete ROM (8MiB). Updating u-boot.bin (same as u-boot-dtb.bin) at 0x70.0000 results in a non booting board though. I've checked a bit and found that the U-Boot image in u-boot.rom at this offset differs from the original u-boot.bin file. Here a diff:

uboot.test (u-boot.rom at offset 0x70.0000) 0000 2D50: 54 2D F0 FF 50 4C F7 FF 00 98 01 00 00 00 F0 FF T-..PL.. ........

u-boot.bin 0000 2D50: 54 2D F0 FF 00 00 00 00 00 00 00 00 00 00 F0 FF T-...... ........

Do you know why this is the case? I would have expected no differences here.

Thanks, Stefan