[meta-xilinx] Why no support for FSBL?

[Peter Smith]

Seems I started a major discussion, as a user engaged in delivering a MPSoC
solution on a custom board which uses meta-xilinx to create Xen guests and
PetaLinux to create Dom0 including FSBL I appreciate all efforts to make
things easier.

On 30 Nov 2017 22:11, "Manjukumar Harthikote Matha" <
manjukumar.harthikote-matha at xilinx.com> wrote:

> Hi Andrey,
>
> On 11/30/2017 11:56 AM, Andrey Filippov wrote:
>
>> Manju,
>>
>> For 4 years we use Xilin Zynq with our hardware and never ever used FSBL
>> or SDK. When we started in 2013 (https://blog.elphel.com/2013/
>> 10/fpga-is-for-freedom/) we quickly noticed that there is no way to
>> distribute Zynq-based products and stay compliant with U-boot GPLv2 license
>> - that would require to distribute binary that combines U-boot code with
>> that of FSBL, so we had to develop our GPL code. We also included more
>> debug features to troubleshoot bringing to life yet untested hardware.
>> Later when U-boot SPL became available we upgraded our code to use it
>> (again - no dependence on SDK) - https://blog.elphel.com/2016/0
>> 3/nand-flash-support-for-xilinx-zynq-in-u-boot-spl/
>>
>> Later Xilinx fixed the legal incompatibility by licensing auto-generated
>> code under GNU GPL, so it is now possible to link FSBL and U-Boot code. But
>> it still has inconvenience of dependence on non-free SDK.
>>
>>
> I am not aware of the history on Zynq platform, thanks for letting me know.
>
> I am under the assumption that SDK is free, https://www.xilinx.com/support
> /download/index.html/content/xilinx/en/downloadNav/embedded
> -design-tools.html
>
> I agree that meta-xilinx-tools depends on SDK which is not lightweight, we
> are looking at different approaches to resolve the issue (including a
> standalone Yocto distribution).
>
> Any suggestions on how you all want to see the development flow is always
> appreciated, we will do our best to incorporate the changes.
>
> Thanks,
> Manju
>
> Andrey
>>
>>
>> ---- On Thu, 30 Nov 2017 10:57:14 -0800 *Manjukumar Harthikote Matha <
>> manjukumar.harthikote-matha at xilinx.com>* wrote ----
>>
>>     Hi Mike,
>>
>>     On 11/28/2017 01:09 AM, Mike Looijmans wrote:
>>      > The "open source" way is to avoid the FSBL (and in fact, all of
>>      > meta-xilinx-tools) and use u-boot SPL instead. All functionality
>>      > provided by the fsbl/bootgen flow is provided by u-boot SPL
>> already.
>>      >
>>
>>     "All functionality" would be a blanket statement, there are many
>> driver
>>     support that is officially tested by Xilinx in fsbl/bootgen flow,
>>     including safety and security support
>>
>>     Thanks,
>>     Manju
>>
>>      >
>>      > On 20-11-17 22:08, Peter Smith wrote:
>>      >> Hi, I’m aware of the meta-xilinx-tools layer, but this needs you
>> to
>>      >> have the Xilinx SDK installed (unless I’m mistaken), I was
>>     wondering
>>      >> ion there were any plans to create support in meta-xilinx for
>>     building
>>      >> the FSBL without the need for the SDK dependency. Peter
>>      >>
>>      >>> On 20 Nov 2017, at 21:05, Giordon Stark <kratsg at gmail.com
>>     <mailto:kratsg at gmail.com>
>>      >>> <mailto:kratsg at gmail.com <mailto:kratsg at gmail.com>>> wrote:
>>      >>>
>>      >>> Hi (resending from right address),
>>      >>>
>>      >>> You can indeed build the FSBL + boot.bin using the
>>     meta-xilinx-tools
>>      >>> layer: https://github.com/Xilinx/meta-xilinx-tools
>>      >>>
>>      >>> Giordon
>>      >>>
>>      >>> On Mon, Nov 20, 2017 at 3:03 PM Peter Smith <salerio at gmail.com
>>     <mailto:salerio at gmail.com>
>>      >>> <mailto:salerio at gmail.com <mailto:salerio at gmail.com>>> wrote:
>>      >>>
>>      >>>     A question, I was wondering why there is no support for
>>     building
>>      >>> FSBL in
>>      >>>     a similar way to that provided by meta-xilinx for the PMU
>>      >>> firmware, is
>>      >>>     there a technical reason or is it just one of those things
>>     that
>>      >>> has not
>>      >>>     yet been got around to? Thanks in advance Peter.
>>      >>>     --
>>      >
>>      > Kind regards,
>>      >
>>      > Mike Looijmans
>>      > System Expert
>>      >
>>      > TOPIC Products
>>      > Materiaalweg 4, NL-5681 RJ Best
>>      > Postbus 440, NL-5680 AK Best
>>      > Telefoon: +31 (0) 499 33 69 79
>>      > E-mail: mike.looijmans at topicproducts.com
>>     <mailto:mike.looijmans at topicproducts.com>
>>      > Website: www.topicproducts.com
>>      >
>>      > Please consider the environment before printing this e-mail
>>      >
>>      >
>>      >
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