[Buildroot] [PATCH] uboot build and deploy added to juno board

[Joao Pinto]

Hi Thomas,

I developed the atfirmware config and I am having problems in the Makefile.
How does the buildroot structure git clones / untar / etc.? I suppose there is a
common spot to do these stuff right?

Send in attchment tarball of the new package. I am thinking of adding it to
Bootloaders. What do you think?

Thanks.
Joao


On 4/21/2016 12:26 PM, Thomas Petazzoni wrote:
> Hello,
> 
> On Thu, 21 Apr 2016 11:34:02 +0100, Joao Pinto wrote:
> 
>>> The whole point of Buildroot is to automate the build process, so this
>>> should be done by a Buildroot package, rather than manually by the
>>> user. So a package for ATF should probably be created.
>>>
>>> I also work on an ARM64 platform that uses ATF+U-Boot, so I'll be able
>>> to compare and tell you whether what you're proposing is only
>>> applicable to Juno, or can be used for other platforms as well.
>>
>> It would great to do it 100% automatic. I'll be waiting for your feedback
>> regarding your ARM64 platform. If it is the same we could do it together.
> 
> Well, the build process is quite similar. I build ATF with:
> 
>   make CROSS_COMPILE=aarch64-linux-gnu- BL33=/path/to/uboot USE_COHERENT_MEM=0 PLAT=<platform> DEBUG=1 LOG_LEVEL=20 all fip
> 
> I think DEBUG=1 and LOG_LEVEL=20 are not important, but I think the
> PLAT= and USE_COHERENT_MEM= variables are important in my case.
> 
> So I guess you do do something like:
> 
>   make CROSS_COMPILE=$(TARGET_CROSS) \
> 	BL33=$(call qstrip,$(BR2_BOOT_ATF_PAYLOAD_PATH) \
> 	$(BR2_BOOT_ATF_ADDITIONAL_VARIABLES) \
> 	all fip
> 
> and that's it. Of course, the location from where you download ATF
> should be configurable, because I'm not using the ATF from ARM
> directly, but a vendor-specific fork.
> 
> Thanks!
> 
> Thomas
> 

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