Beaglebone Black defconfigs

Konstantin Kletschke konstantin.kletschke at
Fri Jun 11 03:05:43 PDT 2021


I am currently trying to bring up barebox for my Beaglebone Black devices.

I did an "ARCH=arm CROSS_COMPILE=arm-buildroot-linux-gnueabihf- make am335x_mlo_defconfig”, make and
copied resulting barebox-am33xx-beaglebone-mlo.img to MLO into my FAT boot partition.

Then I did "ARCH=arm CROSS_COMPILE=arm-buildroot-linux-gnueabihf- make omap3530_beagle_defconfig”, make 
and copied resulting barebox-beagleboard.img to barebox.bin into my boot FAT.

Is the the different prefix in the defconfigs (am33… vs. omap35…) reasonable? 
Is this approach generally reasonable?

Many references in internet to matching
defconfigs I found refer to non existing ones, there seems to happen great overhaul meanwhile. 
I am also asking because, well, it does not work:

barebox 2021.05.0-00093-g7689055a8 #2 Fri Jun 11 09:01:36 CEST 2021

Board: TI AM335x BeagleBone
detected 'BeagleBone Black'
omap-hsmmc 48060000.mmc at 0.of: registered as mmc0
omap-hsmmc 481d8000.mmc at 0.of: registered as mmc1
booting from MMC
mmc1: detected MMC card version 5.1
mmc1: registered mmc1
unable to handle paging request at address 0x4020f010
pc : [<8ffbbd5a>]    lr : [<8ffbbd89>]
sp : 9ffeffb0  ip : 00000000  fp : 00014e2c
r10: 00125920  r9 : 8ffbbce5  r8 : 9ffe4000
r7 : 80000000  r6 : 9fe1a46e  r5 : 402f0400  r4 : 8ffbbcdc
r3 : 0000060a  r2 : 4020f010  r1 : abe742c3  r0 : 80000000
Flags: nzCv  IRQs off  FIQs on  Mode SVC_32

no stack data available

This repeats endlessly. I investigated the data sheet and if I am correct 0x4020f010 seems to be a reserved
area in L3 memory map.

Kind Regards

Konstantin Kletschke
Berenbosteler Straße 76 B
30823 Garbsen

Telefon: +49 (0) 5137 90950136
Mobil: +49 (0) 151 15256238
Fax: +49 (0) 5137 9095010

konstantin.kletschke at 

Geschäftsführung: Michael Emmert, Ingo Haase, Dr. Fred Könemann, Derek Uhlig
HRB: 111204, AG Hannover

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