Using SEC 4.4 on P1010 from bootloader

alexandernovik2 — Tue, 20 Jun 2017 05:02:22 GMT

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?

Re: Using SEC 4.4 on P1010 from bootloader

bpe — Fri, 23 Jun 2017 05:46:24 GMT

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-v2.0-1703

topic Re: Using SEC 4.4 on P1010 from bootloader in P-Series

Using SEC 4.4 on P1010 from bootloader

Re: Using SEC 4.4 on P1010 from bootloader