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repk / gxlimg

Boot Image creation tool for amlogic s905x (GXL)
BSD 2-Clause "Simplified" License
56 stars 27 forks source link

Add support for extracting the DDR firmware binaries from v3 images #21

Closed xdarklight closed 12 months ago

xdarklight commented 1 year ago

This is useful for retrieving the DDR firmware binaries for G12A boards.

@superna9999 do you have any idea what that 0x20 byte header is in front of the actual fip_ddrfw_toc_entry?

superna9999 commented 1 year ago

@xdarklight sorry I have no idea at all

repk commented 1 year ago

Sounds good to me. I'll just take a look if I can grasp what this 0x20 byte header is before merging that.

repk commented 1 year ago

Hi @xdarklight,

I have finally took time to look at it, so first of all thanks a lot for your PR and sorry for long delay.

For what I could guess, the 0x20 byte header in front of the actual fip_ddrfw_toc_entry could be the SHA-256 hash of the whole file.

Do you think this could make sense here ?

xdarklight commented 12 months ago

I have finally took time to look at it, so first of all thanks a lot for your PR and sorry for long delay.

Thanks - and don't worry about a few days of delay!

For what I could guess, the 0x20 byte header in front of the actual fip_ddrfw_toc_entry could be the SHA-256 hash of the whole file.

Do you think this could make sense here ?

Oh, this is actually more simple than I anticipated. I updated the code in this pull request accordingly.

repk commented 12 months ago

Looks good to me. Thanks for the PR.