Using SEC 4.4 on P1010 from bootloader

[alexandernovik2]

Hello!

I'am trying to understand SEC 4.4 and how to use it from bootloader (simple custom bootloader, written with assembly). I just need to compute CRC of boot image but I can't find some code examples to figure out how to start. Is there any examples how to use it?

[bpe]

The recommended way to perform a CRC or hash operation over memory is
by constructing and submitting a Job Descriptor via the Job Ring
interface. Below is a  simple descriptor to calculate a CRC over a
contiguous block of memory:

 [00] B0800009       jobhdr: stidx->[00] len=9
 [01] 8490002C    operation: cls2-op crc ietf3385 init-final dec
 [02] 24540000       fifold: class2 msg-last2 ext
 [03] 00000000               ptr->@0x0fdec4080
 [04] FDEC4080
 [05] 00449D00               extlen=4496640
 [06] 54200004          str: ccb2-ctx len=4 offs=0
 [07] 00000000               ptr->@0x0feb95140
 [08] FEB95140

Simple routines for creating and managing SEC jobs can be found in
u-Boot SEC driver:

http://git.freescale.com/git/cgit.cgi/ppc/sdk/u-boot.git/tree/drivers/crypto/fsl?id=fsl-sdk-v2.0-170...