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Subject: Re: beaglebone black boot failure Linux v5.15.rc1
From:   "H. Nikolaus Schaller" <hns@goldelico.com>
In-Reply-To: <cce97271-11d2-cc1a-a0fc-c8e8b4482329@ti.com>
Date:   Tue, 21 Sep 2021 18:40:01 +0200
Cc:     Grygorii Strashko <grygorii.strashko@ti.com>,
        "Vaittinen, Matti" <Matti.Vaittinen@fi.rohmeurope.com>,
        Paul Barker <paul.barker@sancloud.com>,
        Peter Ujfalusi <peter.ujfalusi@gmail.com>,
        =?utf-8?Q?Beno=C3=AEt_Cousson?= <bcousson@baylibre.com>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        Suman Anna <s-anna@ti.com>,
        "linux-omap@vger.kernel.org" <linux-omap@vger.kernel.org>
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 <YUmOGFUFONR/ynfW@atomide.com> <cce97271-11d2-cc1a-a0fc-c8e8b4482329@ti.com>
To:     Matti Vaittinen <mazziesaccount@gmail.com>,
        Tony Lindgren <tony@atomide.com>
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Hi Matti, Tony,

> Am 21.09.2021 um 18:07 schrieb Suman Anna <s-anna@ti.com>:
>=20
> Hi Matti, Tony,
>=20
> On 9/21/21 2:47 AM, Tony Lindgren wrote:
>> * Matti Vaittinen <mazziesaccount@gmail.com> [210920 08:23]:
>>> Finally, adding the udelay(100); (as Tony suggested) at the end of =
the
>>> omap_reset_deassert() did make the oops go away even when pruss_tm =
was
>>> enabled. I don't know what would be a proper fix though.
>=20
> I have been able to boot v5.15-rc1 just fine on my BBB without any =
additional
> changes [1].

Same for me with a v5.15-rc1 based kernel.

> May I ask what is your BBB board version? My board is rev.A5C.

I have an Rev B6 with EXP41 display attached. I think Matti reported a =
Rev C board?

> I vaguely remember from all those years ago when I first enabled PRUSS =
on AM335x
> that some earlier BBB versions had some issues around PRUSS.

What I am not using is PRUSS so it may (or may not) be disabled in =
CONFIG.

BR,
Nikolaus=