[U-Boot] Nokia RX-51 (N900) board broken

[Georges Savoundararadj]

Hi Pali Rohár,

The "prefetch abort exception" occurs in the function 
do_omap3_emu_romcode_call (in arch/arm/cpu/armv7/omap3/lowlevel_init.S) 
when executing the instruction "SMC #1".

I can't figure out what makes the difference between the working and the 
not-working versions.
Maybe we should monitor the Secure Configuration Register but gdb does 
not allow to watch the coprocessor registers.

I hope it helps.

Regards,

Georges

Le 04/01/2015 23:28, Georges Savoundararadj a écrit :
> Hi Pali Rohár,
>
> Le 04/01/2015 23:14, Pali Rohár a écrit :
>> Hello,
>>
>> here are commands how to compile u-boot for nokia n900, convert
>> uboot image into n900 nand MTD file and run it under linaro arm
>> version of qemu (upstream version of qemu have not merged n900
>> support yet):
>>
>> $ export ARCH=arm
>> $ export CROSS_COMPILE=arm-linux-gnueabi-
>> $ make nokia_rx51_config
>> $ make
>> $ qflasher -x xloader-qemu.bin -s secondary-qemu.bin \
>>    -k u-boot.bin -m rx51 -o u-boot.mtd
>> $ qemu-system-arm -M n900 -mtdblock u-boot.mtd -serial /dev/tty
>>
>> You need:
>> * qflasher - Nokia generator of nand MTD image with CAL data
>> * xloader-qemu.bin - Nokia first stage bootloader (X-Loader)
>> * secondary-qemu.bin - Nokia second stage bootloader (NOLO)
>> * qemu-system-arm - Linaro arm version of qemu
>>
>> Linaro arm version of qemu can be downloaded e.g. from ubuntu:
>> http://packages.ubuntu.com/source/precise/qemu-linaro
>> (I'm using this version)
>>
>> Nokia qflasher and bootloaders are proprietary and closed source
>> but could be found on internet. License allows to redistribute
>> binaries for non commercial purposes. If you are unable to find
>> it on internet anymore (originally they were hosted on website
>> repo.meego.com before intel turned it off) and you are OK with
>> that license, I can send you needed files.
>>
>> ====
>> Copyright (c) Nokia Corporation 2010
>> All Rights Reserved.
>>
>> This material, including documentation and any related computer
>> programs, is protected by copyright controlled by Nokia
>> Corporation. All rights are reserved. Modifying, adapting and/or
>> translating, any or all of this material requires the prior
>> written consent of Nokia. Distribution for commercial purposes
>> not allowed without prior written approval from Nokia.
>> ====
> I am OK with that. Please send me the needed files.
>
> Thanks,
>
> Best regards,
>
> Georges
>