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/2016/03/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-ma...@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 <kra...@gmail.com
<mailto:kra...@gmail.com>
>>> <mailto:kra...@gmail.com <mailto:kra...@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 <sale...@gmail.com
<mailto:sale...@gmail.com>
>>> <mailto:sale...@gmail.com <mailto:sale...@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.looijm...@topicproducts.com
<mailto:mike.looijm...@topicproducts.com>
> Website: www.topicproducts.com
>
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>
>
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