On Tue, May 2, 2017 at 4:16 PM, Jagan Teki <jagannadh.t...@gmail.com> wrote: > On Fri, Jan 27, 2017 at 4:14 AM, Rask Ingemann Lambertsen > <r...@formelder.dk> wrote: >> On Wed, Jan 25, 2017 at 06:40:38PM +0800, Chen-Yu Tsai wrote: >> >> [hacking around the broken A80 TrustZone implementation] >>> This is doable, and it is actually what Allwinner's kernel does, but is >>> really hackish. The released 3.4 kernel also has the same workarounds >>> for A83T. So it's also possible the A83T has the same issues. >> >> FWIW, the kernel that ships with my A80 based media player produces this: >> [ 0.000000] Linux version 3.4.39+ (lzq@sunchip-CS24-TY) (gcc version >> 4.6.3 20120201 (prerelease) (crosstool-NG linaro-1.13.1-2012.02-20120222 - >> Linaro GCC 2012.02) ) #1 SMP PREEMPT Sat Nov 14 03:33:12 UTC 2015 >> ... >> [ 0.262230] CPU4: failed to boot: -22 >> [ 0.302298] CPU5: failed to boot: -22 >> [ 0.342350] CPU6: failed to boot: -22 >> [ 0.382421] CPU7: failed to boot: -22 >> >> So I guess you are not alone in having trouble getting PSCI to work on the >> A80. However, when trying out your patches, I also once or twice got a >> failure booting CPU2 although CPU3 and CPU4 came up fine. >> >>> So, if there's still interest in getting a working PSCI environment >>> for the A80/A83T, I'll look into doing a workaround patch for GIC-400. >>> Otherwise I'm going to go back and revive my MCPM patches for in-kernel >>> SMP support. >> >> I vote for whatever works. I'll also happily test it. Is there a git tree >> I should keep an eye on? > > Any further update on this series? I think there is an issue this wrt comment > on > "[U-Boot,09/10] sunxi: Enable PSCI on sun9i/A80" patch, Please send > the next version on once resolved. Will mark this series as > "Superseded"
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