[PATCH v2 0/9] spl: atf: add support for LOAD_IMAGE_V2

Michal Simek michal.simek at xilinx.com
Fri Nov 20 11:14:14 CET 2020


Hi,

On 18. 11. 20 17:45, Michael Walle wrote:
> Newer TF-A versions provide a new image loading protocol. This is used on
> (newer?) NXP's SoCs. Normally, the bootflow is bl1 -> bl2 -> bl31 ->
> u-boot. With this series it is possible that U-Boot SPL loads the bl31
> directly and thus replacing bl1 and bl2 from the TF-A.
> 
> This was tested on the Kontron sl28 board using NXPs bl31 and the upstream
> version of the OP-TEE Trusted OS.

I still have some questions about this.

As I see from TFA previous image format has been removed in 2018 by

commit ed51b51f7a9163a7fc48289c5ed97a3fe4fe504f
Author:     Roberto Vargas <roberto.vargas at arm.com>
AuthorDate: Mon Sep 24 17:20:48 2018 +0100
Commit:     Antonio Nino Diaz <antonio.ninodiaz at arm.com>
CommitDate: Fri Sep 28 15:31:52 2018 +0100

    Remove build option LOAD_IMAGE_V2

    The code of LOAD_IMAGE_V2=0 has been removed.

    Change-Id: Iea03e5bebb90c66889bdb23f85c07d0c9717fffe
    Co-authored-by: Antonio Nino Diaz <antonio.ninodiaz at arm.com>
    Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz at arm.com>


On Xilinx ZynqMP I use SPL->bl31 loading but not using that TFA
structure because xilinx is using own format.

But I am curious if V2 was removed in 2018 who is really using previous
one and also if current implemenation is origin or also not full v2.

And these patches are not breaking boot on zynqmp that's why not big
deal for me.

Thanks,
Michal


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