RE: [Ltib] Puzzle: Booting hangs after tranferring from U-boottoKernel

[Qin, Laigui (GE EntSol, Security)]

Hi Stuart,

 

Thanks again. For the booting issue, I figure out that it may caused by the difference between Uboot 1.2.0 (Freescale Ltib used) and Uboot 1.3.2 (which I used). You can see that:

 

in Uboot 1.2.0: Kernel is entered through the following calling

        theKernel (linux_argc, linux_argv, linux_env, 0);
while in Uboot 1.3.2:

        (*kernel) (kbd, initrd_start, initrd_end, cmd_start, cmd_end);

 

where both thekernel and kernel are the defined entry point, however, the parameters seems totally different!!!

 

How can I solve this by using Ltib?

 

Thanks,

Mike Qin
GE Security

GE imagination at work

 

---

From: Stuart Hughes [mailto:address@hidden
Sent: Monday, June 02, 2008 6:36 PM
To: Qin, Laigui (GE EntSol, Security)
Cc: address@hidden
Subject: RE: [Ltib] Puzzle: Booting hangs after tranferring from U-boottoKernel

Hi Mike,

The load address etc is set by default in 
config/userspace/defaults.lkc.  This overridden if needed in individual 
platform's main.lkc files (see config/platform/m537xevb/main.lkc) for an 
example.  There is currently no separate entry for  the entry point 
(it's the same as the load address).

Regards, Stuart


On Mon, 
2008-06-02 at 15:53 +0530, Qin, Laigui (GE EntSol, Security) wrote: 
> Thanks Stuart. Besides, do you 
>   know how to set the parameter for mkimage tool in Ltib? for example, I want to 
>   change the loadaddress(-a) and entry point(-e) of the uImage by using mkimage 
>   in Ltib. 
>

Mike Qin 

 

---

From: Stuart Hughes [mailto:address@hidden
Sent: Monday, June 02, 2008 5:58 PM
To: Qin, Laigui (GE EntSol, Security)
Cc: address@hidden
Subject: Re: [Ltib] Puzzle: Booting hangs after tranferring from U-boot toKernel

>
> Hi Mike,
>
> It could be many things.  Check for instance that you have 
>   the right tty type and also baud rate set.
>
> Your best bet would be to try the linuxppc mailing list as this 
>   looks like a kernel/setup problem.
>
> Regards, 
>   Stuart
>
> On Mon, 2008-06-02 at 14:38 +0530, 
>   Qin, Laigui (GE EntSol, Security) wrote:
> > Hi all,
> >
> > I have successfully porting U-boot for my custom board. Now, I 
> >     am trying to boot the uImage built from the Ltib for M54454EVB (I plan to 
> >     modify Ltib based on the M54454EVB, while I am not using its Uboot in Ltib). 
> >     The booting hangs after tranferring from U-boot to Linux Kernel. Any one can 
> >     help on this?
> >
> > --------------------------------------------------------------------- 
> >     
> > baudrate    = 115200 
> >     bps 
> > No 
> >     initrd 
> > ## 
> >     Transferring control to Linux (at address 40020000) .. 
> > (HANGS 
> >     HERE) 
> > ---------------------------------------------------------------------
> >
> > And anyone knows the "Bumping USB Priority"? This come before 
> >     the "Linux version 2.6.23..." in M54454EVB booting...
> >
> > --------------------------------------------------------------------- 
> >     
> >    Verifying Checksum ... 
> >     OK 
> > OK 
> > Bumping USB Priority 
> >     
> > Linux version 2.6.23 (address@hidden) (gcc 
> >     version 4.2.0 20070318 (prerelease) (Sourcery G++ Lite 4.2-35)) #2 Wed May 
> >     21 06:59:31 PDT 2008
> >
> > ---------------------------------------------------------------------
> >
> > Thanks, 
> >
> > Mike Qin
> >
> >
> > _______________________________________________
> > LTIB home page: http://bitshrine.org
> >
> > Ltib mailing list
> > address@hidden
> > http://lists.nongnu.org/mailman/listinfo/ltib