[U-Boot] testing u-boot on virtual environment

[Érico Porto]

md 0805283e
0805283e: 4489028b 1beba4bd 7502fb83 028b660d    ...D.......u.f..
0805284e: 7d448966 c0b70fa4 028a09eb a43d4488    f.D}.........D=.
0805285e: 51c0b60f 75ff5047 90558994 059e2568    ...QGP.u..U.h%..
0805286e: aaefe808 558bffff 10c48390 f739da01    .......U......9.
0805287e: f089b975 af0fff31 0c4501c3 548a1deb    u...1.....E....T
0805288e: b60fa43d 89b60fca 08059cdc 7497e180    =..............t
0805289e: 79d28404 3d44c605 39472ea4 50df75c7    ...y..D=..G9.u.P
080528ae: a4458d50 9e2b6850 44c60805 e800a43d    P.E.Ph+....D=...
080528be: ffffaaa1 29087d01 25e81475 83ffffab    .....}.)u..%....
080528ce: c08510c4 14eb0874 891b048d 7d839445    ....t.......E..}
080528de: 850f0014 ffffff33 03ebc031 8dffc883    ....3...1.......
080528ee: 5e5bf465 90c35d5f 89559090 0c458be5    e.[^_]....U...E.
080528fe: 5d084589 ffae50e9 e58955ff 0f10458b    .E.].P...U...E..
0805290e: 830c45af e0830fc0 084589f0 b00de95d    .E........E.]...
0805291e: 8955ffff 535657e5 8b4cec83 3c6a0c7d    ..U..WVS..L.}.j<
0805292e: 68145d8b 08059e33 758df16a 45c756ac    .].h3...j..u.V.E
=>mtest 0805283e 080528fe
Pattern 00000000  Writing...  Segmentation Fault


So close..


On 12/23/11, Érico Porto <ericoporto2008 at gmail.com> wrote:
> doing md 0805283e works
>
> if I can change the base address now, every memory command should work
>
> On 12/23/11, Érico Porto <ericoporto2008 at gmail.com> wrote:
>> md 0 gives me in dmesg:
>>
>>
>> [11753.433067] u-boot[4277]: segfault at 0 ip 0805283e sp bfb809f0
>> error 4 in u-boot[8048000+1a000]
>>
>>
>> On 12/23/11, Érico Porto <ericoporto2008 at gmail.com> wrote:
>>> Thanks!
>>>
>>> Tried to do some memory display commands but got instant segmentation
>>> fault, and tried to run it as root - but then some bad things
>>> happened, so now I know no one should run it as root.
>>>
>>> I wanted to tryout a memory test algorithm I developed, but it seem
>>> u-boot runs with no ram access. If I could findout the ram address
>>> where it is located, I think then the 8MB it says it has wouldn't give
>>> me segmentation fault...
>>>
>>> =>version
>>>
>>> U-Boot 2011.12-rc3 (Dec 23 2011 - 11:07:12)
>>> gcc (Ubuntu/Linaro 4.6.1-9ubuntu3) 4.6.1
>>> GNU ld (GNU Binutils for Ubuntu) 2.21.53.20110810
>>> =>printenv
>>> baudrate=115200
>>> stderr=serial
>>> stdin=serial
>>> stdout=serial
>>>
>>> Environment size: 66/8188 bytes
>>> =>bdinfo
>>> boot_params = 0x00000000
>>> DRAM bank   = 0x00000000
>>> -> start    = 0x00000000
>>> -> size     = 0x08000000
>>> FB base     = 0x00000000
>>>
>>> On 12/23/11, Graeme Russ <graeme.russ at gmail.com> wrote:
>>>> Hi Érico
>>>>
>>>> On 23/12/11 23:46, Érico Porto wrote:
>>>>> Hello,
>>>>>
>>>>> Does anyone know if exists somekind of simulator to run u-boot in test
>>>>> mode?
>>>>
>>>> Have a look at the sandbox 'board' - It allows U-Boot to be run as an
>>>> executable in Linux to test non hardware specific code
>>>>
>>>> do:
>>>>
>>>> make sandbox_config
>>>> make all
>>>>
>>>> Regards,
>>>>
>>>> Graeme
>>>>
>>>
>>>
>>> --
>>> Érico V. Porto
>>>
>>
>>
>> --
>> Érico V. Porto
>>
>
>
> --
> Érico V. Porto
>


-- 
Érico V. Porto