[U-Boot] U-boot hangs in mtest in MPC8280 Board

[GurumurthyGowdar]

On Thu, 30 Jul 2009 17:50:47 +0530  wrote
>Hello GurumurthyGowdar,
>
>GurumurthyGowdar wrote:
>> On Thu, 30 Jul 2009 16:14:30 +0530  wrote
>>> Hello GurumurthyGowdar,
>>>
>>> GurumurthyGowdar wrote:
>>>> On Thu, 30 Jul 2009 12:54:31 +0530  wrote
>>>>> Hello GurumurthyGowdar,
>>>>>
>>>>> GurumurthyGowdar wrote:
>>>>>> i am using MPC8280 in our board which has 512MB of SDRAM i.e. from micron.
>>>>> Is this board in mainline, so I can look in the Source Code?
>>>> yes this board is in mainline.only one board.
>>> And which board is it? means ? it is MPC8280 based board called remote I/O board
>
>How do you compile it?
>
>make xxx_config
>
>What is xxx for you?
>I looked in code but couldn;t find a "SLN Technologies" string ...
>
>>> As I saw in your log, it uses the "normal" mtest. Try to use
>>>
>>> CONFIG_SYS_ALT_MEMTEST
>> how to use this...where to add...command for this test??
>
>You just have to add this define in your board config file.
>I looked in 1.3.1, so you should add a
>
>#define CFG_ALT_MEMTEST         1
i have added this line. after adding this which command i have to give..same mtest or any other command for CFG_ALT_MEMTEST ??
>
>>> instead. (Hopefully, this is available in 1.3.1 ...)
>>>
>>>>> Which u-boot version?
>>>> U-boot version is 1.3.1.
>>> Hmm.. this is very old ...
>> which is the latest version of u-boot ,can i upgrade the current version of u-boot to latest version i.e. from u-boot 1.3.1 to latest u-boot without reinstalling ELDK
>
>http://git.denx.de/?p=u-boot.git;a=summary
>
>>>>> Which SDRAMs?
>>>> SDRAM is MT48LC32M16A2 from Micron.
>>>>>> when i give command mtest  only for 1MB to check memory test from U-boot, machine check and program exception is coming after 40 - 60mins later it hangs giving program check exception
>>>>> Hmm... maybe problems with your SDRAMs?
>>>> if it is SDRAM problem it should not work for 1hour also i think.
>>> Why not? 
>> ok
>>>>> Is this error shown always after 40-60 mins, not sometimes also earlier?
>>>> maximum i am able to run mtest for 1hr 30 mins. sometimes it hangs with 45mins also.
>>> Not earlier?
>> sometimes earlier but rare
>>> Hmm...
>>>
>>>>> Can you boot a Linux Kernel for example?
>>>> No. our job is to only give the board with U-boot boot loader, Linux booting is done by our client.
>>> But you can try it ...
>>> This would help here, to stress more the SDRAMs ... also you
>>> can do better memtests there/with it.
>> 
>> i got one new error which is below :- 
>> U-Boot 1.3.1 (Jul 27 2009 - 17:27:10)
>> 
>[...]
>> DRAM:  512 MB
>> 
>> it hangs here only if i press manual hardware reset many times also.
>> 
>> if i power off & switch on then it reboots in normal way again.
>
>Hmm... nothing spring to my mind, just the "standard" things:
>
>check your
>- HRCW
>- clocks
>- SDRAM
>settings
>
>bye,
>Heiko
>-- 
>DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
>HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
>