[Openpvrsgx-devgroup] old am3517 version

Tony Lindgren tony at atomide.com
Thu Dec 19 17:31:23 CET 2019


* H. Nikolaus Schaller <hns at goldelico.com> [191219 15:46]:
> > Am 19.12.2019 um 15:54 schrieb Tony Lindgren <tony at atomide.com>:
> > The thing to try with am3517 is to try to blobs that work for omap36xx
> > and am437x, and see if the sgx530 revision specific hardware echanges
> > are limited to the kernel driver only. You could try this on any of
> > omap34xx/omap35xx/am3517.. I guess Nikolaus already did some tests with
> > omap35xx version of gta04 though?
> 
> Yes. Basically the key issue is the minor SGX version.
> It appears that we need
> * sgx530-121 for omap3430/3530/am3517
> * sgx530-125 for omap3630/dm3730
> 
> Unfortunately this minor version is also somehow embossed into the
> user-space libs and binaries (maybe even the uKernel) so that trying
> to run the DDK 1.14 on omap3530 (e.g. OpenPandora 600 MHz) fails with
> a warning that the SGX version does not match.

Have you tried downgrading the kernel version string and
ignoring all the version errors in the kernel?

> > In both rewriting commands and trying to use different version code, we
> > may have a tricky problem if the hardware changes also affect the binary
> > blobs.
> 
> Well, we can't exclude that the uKernel (= Firmware) must match the
> specific hardware because it does some workarounds.

Yes it's possible that firmware needs to match the sgx530
hardware revision too.

Regards,

Tony


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