[U-Boot] U-Boot for LENO3 processor board

[K Balaji]

Thanks Daniel,

it will be veryhelpful for me to start exploring. pleas do let me know once you have updated for LEON3FT.


have nice weekend.
 
Regards,
Balaji KUPPUSAMY,  PMP®




----- Original Message ----
From: Daniel Hellstrom <daniel at gaisler.com>
To: K Balaji <krb_balaji at yahoo.com>
Cc: u-boot at lists.denx.de
Sent: Thu, January 21, 2010 3:02:22 PM
Subject: Re: [U-Boot] U-Boot for LENO3 processor board

Hi,


Detlev Zundel wrote:

> Hi Balaji,
> 
>  
>> I am having the following boot requirements:
>> 
>> Boot software will be flashed in to PROM, which should start from PROM
>> and copy the application software which is flahsed in other flash
>> device in different address space. The processor is LEON3FT.
>> 
>> is current release of U-Boot supports LEON3FT architecture, please
>> provide with details and link to get start
>>    
> 
> Actually I don't know much about the Leon line of CPUs, but I see that
> we have three configurations using a Leon CPU: gr_cpci_ax2000,
> gr_ep2s60, grsim and gr_xc3s_1500.  I put the maintainer of these boards
> on CC, so maybe he can answer that.
> 
> Cheers
>  Detlev
>  
As Detlev points out there are three BSPs available. Since the LEON3 is a SOC it is hard to support all different configurations on a board, so the boards supported are though to support the template design of GRLIB.

The LEON3FT is not supported in the current u-boot available in the sparc git repository at denx.de. Some extra steps must be taken when running the fault-tolerant LEON3, one must clear memory and registered for example so that the CRCs of the registers are correct.

I have a version that supports LEON3FT available at ftp://ftp.gaisler.com/u-boot/u-boot-sparc-vxworks-1.0.0.tar.gz, currently I'm working with generating patches for the LEON3 CPU/boards, I have reworked some parts of the current LEON port. I suggest you wait one day or so until I push the patches onto the SPARC-u-boot git repo, after that I will also add the LEON3FT patches. In the meanwhile you can try the FTP link.

Regards,
Daniel