[RFC][TRUSTY] X-Gene platform support

Tim Gardner tim.gardner at canonical.com
Thu Mar 13 14:22:53 UTC 2014


On 03/11/2014 12:15 PM, Dann Frazier wrote:
> Hi,
>   I've assembled a git tree with support for the X-Gene platform:
>
> git://kernel.ubuntu.com/dannf/trusty-xgene.git for-ubuntu-20140310
>
> The PCI changes in the above are fairly significant and still under
> upstream review. I've therefore provided a separate branch with these
> changes backed out and replaced with an earlier version of the host
> controller driver, with fewer dependencies:
>
> git://kernel.ubuntu.com/dannf/trusty-xgene.git for-ubuntu-20140310-oldpci
>

Ugh! Even with the PCI reverts there are some questionable patches wrt 
to maintenance and stability.

I could _probably_ accept the ahci_platform patches since they are 
already in linux-next and will likely make it into 3.15 (though I'll 
remind you that I _really_ like to just cherry-pick the final patch from 
Linus' repo). Are the "Library-ise" patches necessary ?

My knee jerk reaction is a NAK to all of the KVM patches. They appear to 
be a work in progress and likely won't even make the 3.15 merge window.

Likewise with "arm64: PCI(e) arch support". A work in progress that is 
unlikely to make 3.15.

Instead of removing the X-Gene reboot driver, can't we just disable the 
config ? Its a bit less churn and we won't have to resolve the conflict 
in future kernels.


What is the current state of the X-gene SOC ? I see that we already have 
DTB files for mustang and storm. Do they already boot and have networking ?

rtg
-- 
Tim Gardner tim.gardner at canonical.com




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