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Re: Re: Problem using "go" command


On Fri, 2003-03-14 at 12:24, Grant Edwards wrote:
> > > I am using 'Redboot.bin' as the boot loader for IXP-425. I am able to
> > > download the 'zImage' as well as the 'ramdisk.gz' image to the
> > > appropriate location. But once I type "go 0x11600000" command from the
> > > Redboot prompt the system hangs.
> > >
> > > Can anyone suggest what could be the problem.
> 
> Make sure your console terminal is plugged into UART0 and not
> UART1.  You can do RedBoot from either, but the Linux console
> is only on UART0.
> 
> > I am not familiar with the RedBoot port to the IXP-425, but, most likely,
> > you should use the "exec" command instead of the "go" command.  I am
> > cross-posting this to ecos-discuss where, hopefully, somebody with
> > experience with the IXP-425 can chime in.
> 
> I use "go" on the IXP-425 and it works just fine.
> 
> My bootscript looks like this:
> 
> RedBoot> fconfig -l
> Run script at boot: true
> Boot script: 
> .. load -r -b 0x11600000 zImage
> .. load -r -b 0x10800000 ramdisk.gz
> .. go 0x11600000

'exec', when available, is normally better as it gives one a chance
to pass command lines to the Linux kernel, gives the kernel information
about the platform, etc.  Also, on many pieces of hardware (most ARM
platforms), the memory map used by eCos is not physical 1-1 and this
can give grief to the Linux kernel during it's bootstrap process.

-- 
.--------------------------------------------------------.
|       Mind: Embedded Linux and eCos Development        |
|--------------------------------------------------------|
| Gary Thomas              email:  gary dot thomas at mind dot be   |
| Mind ( http://mind.be )  tel:    +1 (970) 229-1963     |
| gpg: http://www.chez-thomas.org/gary/gpg_key.asc       |
'--------------------------------------------------------'


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