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    SubjectRe: Lay common foundation to make PVR/SGX work without hacks on OMAP34xx, OMAP36xx, AM335x and potentially OMAP4, OMAP5
    On Sat, Aug 17, 2019 at 2:03 AM Tony Lindgren <tony@atomide.com> wrote:
    >
    > * Adam Ford <aford173@gmail.com> [190816 23:02]:
    > > On Wed, Aug 14, 2019 at 8:16 AM Tony Lindgren <tony@atomide.com> wrote:
    > > > Well I just posted some sgx interconnect target module patches. We might
    > > > still have them in v5.4 assuming people manage to review and test them.
    > >
    > > Nikolaus,
    > >
    > > I tested Tony's change and I can confirm that I can read the value
    > > when enabled. Should I apply his patches to your branch before I
    > > test, or is it go too to go as-is? I've got an AM3517, OMAP35 and a
    > > DM3730. I am not sure if the AM3517 is even on the radar, but it has
    > > an sgx530 as well.
    >
    > My estimate is am3517 is wired the same way as omap34xx with a 60%
    > chance, then 30% chance it's wired the same way as omap36xx, and then
    > 10% chance for similar wiring to am335x.. So hopefully that leaves 0%
    > chance for yet something different for it's wiring :)

    Based on [1], I went under the assumption it was wired like the
    omap34xx. I applied your omap34 patches to the am3517.dtsi, and I was
    able to get the same response as I did for the omap3530. Do you want
    me to post the patches to the mailing list, or do you want to do it?

    adam

    [1] - http://processors.wiki.ti.com/index.php/GSG:_AM35x_and_OMAP35x_Rebuilding_the_Software#How_to_check_for_SGX_core_revision

    >
    > If you have a chance please give it a try. Also check the TRM for the
    > sgx sysconfig register bits to see which of the above matches, and if
    > 3517 has a related rstctrl register like am335x has.
    >
    > Regards,
    >
    > Tony

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