linux-kernel - Re: beaglebone black boot failure Linux v5.15.rc1

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Date:   Thu, 30 Sep 2021 11:06:13 +0300
From:   Tony Lindgren <tony@...mide.com>
To:     "Vaittinen, Matti" <Matti.Vaittinen@...rohmeurope.com>
Cc:     Matti Vaittinen <mazziesaccount@...il.com>,
        Grygorii Strashko <grygorii.strashko@...com>,
        "linux-omap@...r.kernel.org" <linux-omap@...r.kernel.org>,
        Suman Anna <s-anna@...com>,
        Paul Barker <paul.barker@...cloud.com>,
        Peter Ujfalusi <peter.ujfalusi@...il.com>,
        Benoît Cousson <bcousson@...libre.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: beaglebone black boot failure Linux v5.15.rc1

* Tony Lindgren <tony@...mide.com> [210922 08:49]:
> * Vaittinen, Matti <Matti.Vaittinen@...rohmeurope.com> [210922 08:45]:
> > Hi Tony & All,
> > 
> > 
> > On 9/21/21 10:47, Tony Lindgren wrote:
> > > * Matti Vaittinen <mazziesaccount@...il.com> [210920 08:23]:
> > > 
> > > It also allows leaving out the udelay for dra7 iva reset. Care to try
> > > this and see if it helps?
> > 
> > Thanks Tony. I applied your patch on top of v5.15-rc1 and my BBB booted 
> > up successfully. I didn't give it more than few attempts though. Do you 
> > think that could merged as a fix to mainline?
> > 
> > If so - feel free to add a
> > Tested-by: Matti Vaittinen <matti.vaittinen@...rohmeurope.com>
> 
> OK great, good to hear! And thanks for testing :) Yeah I'll post a proper
> fix for mainline. But one thing to consider though..
> 
> I'm wondering if we should always wait for the rstctrl bit to go down
> before we even attempt to check the rststs bit if a rststs registe
> exists.

I've sent out a proper patch for this at [0] below, please review and
test.

Regards,

Tony

[0] [PATCH] soc: ti: omap-prm: Fix external abort for am335x pruss
    https://lore.kernel.org/linux-omap/20210930080100.56820-1-tony@atomide.com/T/#u