[U-Boot] u-boot 2016.01-rc2 detects BeagleBone Black incorrectly

Matwey V. Kornilov matwey.kornilov at gmail.com
Thu Dec 17 18:54:54 CET 2015


2015-12-17 3:53 GMT+03:00 Robert Nelson <robertcnelson at gmail.com>:
> Hi Matwey
>
> On Sat, Dec 12, 2015 at 3:14 AM, Matwey V. Kornilov
> <matwey.kornilov at gmail.com> wrote:
>> Hello,
>>
>> I am running 2016.01-rc on BBB (Embest replica)
>>
>> printenv shows the following:
>>
>> findfdt=if test $board_name = A335BONE; then setenv fdtfile
>> am335x-bone.dtb; fi; if test $board_name = A335BNLT; then if test
>> $board_rev = BBG1; then setenv fdtfile am335x-bonegreen.dtb; else setenv
>> fdtfile am335x-boneblack.dtb; fi; fi; if test $board_name = A33515BB;
>> then setenv fdtfile am335x-evm.dtb; fi; if test $board_name = A335X_SK;
>> then setenv fdtfile am335x-evmsk.dtb; fi; if test $fdtfile = undefined;
>> then echo WARNING: Could not determine device tree to use; fi;
>>
>> after findfdt has been run,
>>
>> fdtfile=am335x-bonegreen.dtb
>>
>> But it is not correct. My $board_rev is the following, I have no idea
>> why does it contain line break.
>>
>> board_name=A335BNLT
>> board_rev=t\
>
> Yuck, another variation!  Can you do me a favor and dump the eeprom:
>
> https://github.com/beagleboard/image-builder/blob/master/readme.md
>
> Download and run:
>
> wget https://raw.githubusercontent.com/RobertCNelson/boot-scripts/master/device/bone/tester/show-eeprom.sh
>
> sudo /bin/bash show-eeprom.sh

# sudo /bin/bash show-eeprom.sh
eeprom: [�U3�A335BNLTt
ue]
eeprom raw: [00000000  aa 55 33 ee 41 33 33 35  42 4e 4c 54 74 0a 75
65  |.U3.A335BNLTt.ue|]


>
> It uses hexdump and compatible with bb.org' 3.8/4.1/etc..
>
> The green should only trigger on: 0x1a 0x00 0x00 0x00
>
> http://git.denx.de/?p=u-boot.git;a=blobdiff;f=board/ti/am335x/board.c;h=f56d17ec58e17a6532b5df649249b4038b475897;hp=f0cb1e204ad550622df7848a993f1eb2f173bc43;hb=dfd1bb4ec89e8b1e87f0605af2345ad6dcf777da;hpb=e4aa8edb6e5cae256a5c5a3c5cd30e05e8f5a2b4
>
> Regards,
>
> --
> Robert Nelson
> https://rcn-ee.com/



-- 
With best regards,
Matwey V. Kornilov
http://blog.matwey.name
xmpp://0x2207@jabber.ru


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