Arshad, Farrukh wrote:
> Greetings All,
> 
> I have a basic question. I have 512 MB memory. I want my kernel to use only 
> last 128 MB of memory starting from address 0x10000000. I have configured the 
> kernel CONFIG_PHYSICAL_START=0x10000000 and in kernel boot parameter I have 
> set mem=128M. In this scenario my kernel is not booting and it just stuck 
> after uncompressing it. If I do not provide mem=128M boot parameter my kernel 
> boots fine, but in that case I can not restrict kernel to use only 128M 
> memory. Why supplying mem=128M causing kernel to fail.
> 

Any kernel option else is configured, such as CONFIG_KERNEL_START and
CONFIG_RELOCATABLE?

Or any u-boot argument is reconfigured, such as 'bootm_low', 'bootm_mapsize' and
'bootm_size'.

Tiejun
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