Development tree for Cortex-A15?

[Jemma Jones]

> Subject: Re: Development tree for Cortex-A15?

> 
> On 08/05/12 11:13, Jemma Jones wrote:
>>>  Subject: Re: Development tree for Cortex-A15?
>>>>   Any chance you can send me a .config file that works on the kernel 
> in
>>>  this
>>>>   branch which runs on your A15x1 FastModel?
>>> 
>>>  Coming in a private email.
>> 
>>  I didn't seem to get anything?
> 
> As far as I'm concerned, it was delivered:
> 
> 2012-05-05 13:09:33 1SQcrl-0006uI-OX <= maz at misterjones.org U=www-data 
> P=local S=59827 id=7da4dd4bd4f768d907094ce4919bfffe at localhost
> 2012-05-05 13:09:34 1SQcrl-0006uI-OX => jemmajones81 at yahoo.co.uk R=dnslookup 
> T=remote_smtp H=mx-eu.mail.am0.yahoodns.net [77.238.184.241]
> 2012-05-05 13:09:34 1SQcrl-0006uI-OX Completed
> 
> I'll resend it again, but you may want to check your spam folder.
> 
>>>>   I'm using the boot-wrapper from
>>>>   
> http://git.linaro.org/gitweb?p=arm/models/boot-wrapper.git;a=summary in
>>>>   semi hosting mode.
>>>> 
>>>>   I managed to boot Android from that but I don't seem to be 
> able to boot
>>>>   your kernel. It just stops after the boot-wrapper says loading 
> uImage.
>>> 
>>>  Which dts file are you using?
>> 
>>  I don't quite understand yet how the DT stuff is used. When I build the 
> DTB files then I get vexpress-v2p-ca15-tc1.dtb in my arch/arm/boot directory. I 
> assume that one is used then for my kernel image?
>> 
>>  My .config has all the DT stuff enabled I think:
>>  CONFIG_ARCH_VEXPRESS_DT=y
>>  CONFIG_ARM_APPENDED_DTB=y
>>  CONFIG_ARM_ATAG_DTB_COMPAT=y
>> 
>>  Or is that not correct?
> 
> First, you want to forget about anything TC1 related, it isn't what you need 
> for the Fast Model.
> 
> Step by step instructions:
> - Grab Paweł's DTS tree: git://linux-arm.org/arm-dts.git
> - Build your zImage
> - From your kernel tree, run:
>   ./script/dtc/dtc -O dtb -o rtsm_ve-cortex_a15x2.dtb 
> wherever_your_arm-dts_tree_is/fast_models/rtsm_ve-cortex_a15x2.dts
> - cat rtsm_ve-cortex_a15x2.dtb >>arch/arm/boot/zImage
> - Build your uImage if that's what you're using.
> - Build your boot-wrapper as usual.
> 
> That should get you going.
> 
>>  I have now updated to you latest kvm-arm-3.4 branch.
> 
> That's very brave of you... ;-)
> 
>>  But the kernel still does not boot up properly, or at least I don't 
> seem to get any output. It just goes "Uncompressing Linux... done." 
> and then does nothing.
>>  I'm using the FastModel Cortex-A15x2 simulation.
> 
> Let me know if it gets better with the above. Or not.
> 

It seems as if the CLCD driver is not yet working in this configuration? It does not load for me, because the clcdfb_probe() function fails with board = dev->dev.platform_data being NULL. Is the platform initialization not setting this?

Jemma