[BISECTED] BeagleBone Black doesn't boot after a58147c2dbbf

Robert Nelson robertcnelson at gmail.com
Fri Aug 5 17:00:52 CEST 2022


On Fri, Jul 29, 2022 at 12:07 PM Matwey V. Kornilov
<matwey.kornilov at gmail.com> wrote:
>
> пт, 29 июл. 2022 г. в 19:46, Tom Rini <trini at konsulko.com>:
> >
> > On Fri, Jul 29, 2022 at 07:38:28PM +0300, Matwey V. Kornilov wrote:
> > > пт, 29 июл. 2022 г. в 19:32, Tom Rini <trini at konsulko.com>:
> > > >
> > > > On Fri, Jul 29, 2022 at 07:20:11PM +0300, Matwey V. Kornilov wrote:
> > > >
> > > > > Hi,
> > > > >
> > > > > I've tried to build an am335x_evm_defconfig u-boot to use it on my
> > > > > BeagleBone Black board. Surprisingly, I've found that it doesn't work,
> > > > > I see the silent console: no messages even from SPL.
> > > > >
> > > > > Using bisect I've found that the following commit breaks the booting:
> > > > >
> > > > >     a58147c2dbbf ("board: ti: common: board_detect: Do 1byte address
> > > > > checks first.")
> > > > >
> > > > > Could you please help me?
> > > >
> > > > Can you share some more details about which BeagleBone Black you have,
> > > > specifically the revision?
> > >
> > > It is an ordinary C revision. Unfortunately, I cannot remember who the
> > > producer was. As far as I know many companies made BeagleBone Black
> > > and EEPROM content can be different.
> >
> > OK, that'll help some.  Can you see what the specific part number of the
> > EEPROM is?  That might also help Nishanth figure out what to do here.
>
> Attached here is the EEPROM dump.

.U3.A335BNLT00C0

Ah, the "CO"... i'm pretty sure that board was made by Element14,
(they messed up the position of the "C") not that it really mattered
as the A335BNLT is only used..

Can you please take a quick snapshot of the eeprom, it should be...
24LC32AT-I/OT but maybe they used another variation..

Regards,

-- 
Robert Nelson
https://rcn-ee.com/


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