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

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Message-ID: <YVVxBFsFUx0ZMoE1@atomide.com>
Date:   Thu, 30 Sep 2021 11:10:44 +0300
From:   Tony Lindgren <tony@...mide.com>
To:     Robert Nelson <robertcnelson@...il.com>
Cc:     "Vaittinen, Matti" <Matti.Vaittinen@...rohmeurope.com>,
        "H. Nikolaus Schaller" <hns@...delico.com>,
        Matti Vaittinen <mazziesaccount@...il.com>,
        Grygorii Strashko <grygorii.strashko@...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>,
        Suman Anna <s-anna@...com>,
        "linux-omap@...r.kernel.org" <linux-omap@...r.kernel.org>
Subject: Re: beaglebone black boot failure Linux v5.15.rc1

* Robert Nelson <robertcnelson@...il.com> [210924 18:41]:
> On Wed, Sep 22, 2021 at 4:28 AM Vaittinen, Matti
> <Matti.Vaittinen@...rohmeurope.com> wrote:
> > Maybe a stupid question - how to find out the exact revision?
> 
> Run:
> 
> hexdump -e '8/1 "%c"' /sys/bus/i2c/devices/0-0050/eeprom -n 28 | cut -b 5-28
> 
> Then lookup:
> 
> https://github.com/beagleboard/image-builder/blob/master/readme.md

So do I need some kernel module for this with the mainline kernel
loaded? I don't have eeprom listed under 0-0050.

I also see eeprom only for am335x-pocketbeagle.dts and
am57xx-beagle-x15-common.dtsi so maybe it should be justd added?

I guess this could be checked with i2cget command too meanwhile.

Regards,

Tony