[microblaze-uclinux] Re: [uClinux-dev] New to uClinux building

[John Williams <jwilliams@xxxxxxxxxxxxxx>]

John Williams wrote:

> 
> Richard Klosinski wrote:
> 
>> I'm trying to port uClinux for the Microblaze softcore to a new 
>> platform, and have a few questions that would help me understand more 
>> about what I'm doing. I have 4MBX16 of ram in my design.
>>
>> 1) What is the relationship between the amount of memory stated in the 
>> .ld file (mbvanilla.lb in my case) and the amount of memory used in 
>> root file system, ram file systems, and program memory? 

> The only change to the link script is right at the top, where the 
> physical memory size is specified.  If you have also changed the memory 
> base address (mbvanilla default is 0x80000000) then change that as well.

Sorry one other thing I forgot - you don't mention having any flash 
memory, is that correct?  If so, you want to choose the "Generic 
uClinux" MTD map.  It will create a RAM partition to manage the root 
filesystem, but no flash partitions.  If you neglect to change this from 
the default (mbvanilla mapping), you'll get some warning messages on 
bootup but it shouldn't actually crash.

Regards,

John
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