On Wed, Dec 20, 2017 at 10:06:13AM +0000, Jon Hunter wrote:
>
> On 16/11/17 14:29, Peter De Schrijver wrote:
> > Apply the memory built-in self test work around when ungating certain
> > Tegra210 power domains.
> >
> > Signed-off-by: Peter De Schrijver <pdeschrijver@xxxxxxxxxx>
> > ---
> > drivers/soc/tegra/pmc.c | 5 +++++
> > 1 file changed, 5 insertions(+)
> >
> > diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c
> > index 0453ff6..4c0582d 100644
> > --- a/drivers/soc/tegra/pmc.c
> > +++ b/drivers/soc/tegra/pmc.c
> > @@ -142,6 +142,7 @@ struct tegra_pmc_soc {
> >
> > bool has_tsense_reset;
> > bool has_gpu_clamps;
> > + bool needs_mbist_war;
> >
> > const struct tegra_io_pad_soc *io_pads;
> > unsigned int num_io_pads;
> > @@ -411,6 +412,9 @@ static int tegra_powergate_power_up(struct tegra_powergate *pg,
> >
> > usleep_range(10, 20);
> >
> > + if (pg->pmc->soc->needs_mbist_war)
> > + tegra210_handle_mbist_war(pg->id);
> > +
> > if (disable_clocks)
> > tegra_powergate_disable_clocks(pg);
> >
> > @@ -1712,6 +1716,7 @@ static int tegra_pmc_resume(struct device *dev)
> > .cpu_powergates = tegra210_cpu_powergates,
> > .has_tsense_reset = true,
> > .has_gpu_clamps = true,
> > + .needs_mbist_war = true,
> > .num_io_pads = ARRAY_SIZE(tegra210_io_pads),
> > .io_pads = tegra210_io_pads,
> > };
>
> After applying this series, tegra210-smaug no longer boots (no output
> from the console). Reverting this patch allows it to boot again. So
> something here is not working ...
>
Annoyingly I don't have smaug, only jetson TX1.. Did you try earlycon?
Peter.
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