Re: [PATCH v3 2/2] arm64: dts: imx8m: define proper status for caam jr

[Michael Walle]

Am 2022-01-07 12:58, schrieb Lucas Stach:
> Am Freitag, dem 07.01.2022 um 12:47 +0100 schrieb Michael Walle:
> > Hi Rouven,
> >
> > Am 2022-01-07 10:46, schrieb Rouven Czerwinski:
> > > .. since AFAIK i.MX8M* can not be run without TF-A.
> >
> > Are you sure? There probably aren't any boards out there
> > without TF-A, but why shouldn't it work without it?
>
> PSCI, i.e. the only means to start the secondary CPUs, is implemented
> in TF-A, so it's very unlikely that anyone would want to run a system
> without TF-A. Also quite a bit of the lowlevel SoC initialization is
> implemented in TF-A.

Doesn't mean u-boot cannot implement PSCI; actually you doesn't need
it at all, you can still use spin tables. I just keep hearing the same
arguments for the LS1028A SoC and yet there is one board without TF-A ;)
Anyway, I admit it's rather unlikely.

-michael