[uClinux-dev] uClinux doesn't boot up on a board with ColdFireCPU. Help please.
davidm at snapgear.com
Sun Oct 23 23:08:46 EDT 2005
Jivin Wang, Gang S lays it down ...
> Thank you, Dave. Can you show me how to turn on the kernel debug flag in
> uClinux? I used "make menuconfig", chose "kernel 2.4.x" because 2.6.x
> will break, and only found "application debug" option.
> -----Original Message-----
> From: uclinux-dev-bounces at uclinux.org
> [mailto:uclinux-dev-bounces at uclinux.org] On Behalf Of David McCullough
> Sent: Thursday, October 20, 2005 3:42 PM
> To: uClinux development list
> Subject: Re: [uClinux-dev] uClinux doesn't boot up on a board with
> ColdFireCPU. Help please.
> Jivin Wang, Gang S lays it down ...
> > Hi,
> > I'm now trying to run uClinux (kernel 2.4.x) on a board with Motorola
> > ColdFire CPU (the board is based on M5272C23 but has some differences
> > flash address, MBAR address, etc.). To boot it, I already successfully
> > run U-Boot on that board. I have the following problems and would like
> > your help.
> > - To make U-Boot boot up uClinux, I need to create uImage by
> > running "mkimage" and give load_address as well as entry_point, is
> > correct?
> > - I did that and burn the created uImage to the flash address
> > 0x202000. I did "imi 202000" to verify the CRC and then run "bootm
> > 202000". However, after U-Boot gave control to uClinux, the system
> > hanged there. No more output message. I wonder how to figure out the
> > problem.
> The kernel expects MBAR to be at 0x10000000, if you have moved it then
> things are not going to work very well.
> Have a look in:
> If you can, you should try and keep MBAR where it is and move some
> other bits around,
David McCullough, davidm at cyberguard.com.au, Custom Embedded Solutions + Security
Ph:+61 734352815 Fx:+61 738913630 http://www.uCdot.org http://www.cyberguard.com
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