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About imx28 HAB

Question asked by bruce chen on Jun 23, 2016
Latest reply on Jun 23, 2016 by igorpadykov

According AN4555 PDF file at the page 19 has like below message:


The first signature will be used with CALL HAB with offset 0x24 showing original

value ‘0’ and second signature used for authenticating linux_prep with JUMP HAB showing a

value of 1 at offset 0x24. We do this by first copying linux_prep, bin to linux_kernel.bin, then

manually modify byte 0x24 to 1 using a hex editor and include linux_kernel.bin in linux_kernel.csf

for signature generation.

cp linux_prep.bin linux_kernel.bin

using a hex editor set byte 0x24 to 1



These message what meaning?   How can i sure what offset byte is 0x24 and modify to 0?