Leon2 RAM configuration

[Thomas Doerfler]

Hello,

Arquer Stephane schrieb:
> Hello,
> 
> This is not the same behaviour with rtems 4.7.1, the RAM size is correctly found.
> Is there something different in the boot between these version  ?

At least the CVS says, that there is no substantial difference in the 
file "start.S".

Since I don't have a LEON target here, I really can't tell you more ATM, 
sorry.

wkr,
Thomas.


> 
> Thanks.
> 
> sa
> 
> 
>> -----Message d'origine-----
>> De : Thomas Doerfler [mailto:Thomas.Doerfler at imd-systems.de] 
>> Envoyé : mercredi 16 avril 2008 13:16
>> À : Arquer Stephane
>> Cc : rtems-users at rtems.com
>> Objet : Re: Leon2 RAM configuration
>>
>>
>> -----BEGIN PGP SIGNED MESSAGE-----
>> Hash: SHA1
>>
>> Hi,
>>
>> if I remember right, the LEON BSP startup function assumes, 
>> that the stack pointer points to top of the usable RAM when 
>> it is called from the boot monitor.
>>
>> It should be worth a try :-)
> 
> What do you mean ?
> 
> 
>> wkr,
>> Thomas.
>>
>>
>> Arquer Stephane schrieb:
>> | Hi,
>> |
>> | I work with rtems 4.8.0 and bsp leon2.
>> | I use Redboot to load rtems application on the target.
>> | When I load a bin file with Redboot, I don't have all the 
>> SRAM size = 
>> | 8 MB available. Otherwise, when I load the same application with 
>> | GRMON, there is no problem.
>> |
>> | MCFG2 register is configured with the correct amount of SRAM: 
>> | 0xB0801460
>> |
>> | Does anyone knows if there is another leon2 register used by Rtems 
>> | during the initialization to calculate the heap space ?
>> |
>>
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