[ELDK] ELDK Linux 2.6.29, MPC885ADS and early console

[Vitaly Bordug]

В Wed, 08 Apr 2009 09:39:31 +0200
Sylvain ANDRE <sandre at assystem.com> пишет:

> Sorry, I forgotten kernel command line
> 
> =>print
> bootargs=root=/dev/rd/0 init=/linuxrc rw mem=40M

I don't see console=ttyCPM0 here.
Does the board boot so it becomes pingable, just no console? that would
be your issue then.

-vitb
> bootcmd=bootm fe080000 fe160000
> bootdelay=5
> baudrate=38400
> ethaddr=40:00:00:00:00:01
> ethact=FEC ETHERNET
> ipaddr=172.28.20.221
> serverip=172.28.20.220
> stdin=serial
> stdout=serial
> stderr=serial
> 
> Environment size: 239/16380 bytes
> =>
> 
> In the FDT I modified manually the memory node (memory base
> 0x00000000, memory size 0x10000000), the bus frequency = 40000000,
> the clock-frequency = 80000000.
> 
>     Sylvain ANDRE.
> 
> 
> Vitaly Bordug a e'crit :
> > В Wed, 08 Apr 2009 08:46:15 +0200
> > Sylvain ANDRE <sandre at assystem.com> пишет:
> >
> >   
> >> Hello,
> >>
> >> I'm working on a custom board based on Freescale MPC885ads. It
> >> runs correctly with Linux 2.4.26 from Arabella BSP.
> >> I decided to migrate to ELDK Linux 2.6.29 rc7, the trouble is the 
> >> console never appears but the kernel starts running.
> >>
> >> The FDT is compiled from mpc885ads.dts file with DTC v1.2.0.
> >>
> >>
> >> After some investigations, I found that ioremap() returns
> >> 0xFDFFC000 for mpc8xx_immr (instead of 0xFF000000 that is the real
> >> IMMR address). I think the registers are not well addressed.
> >>
> >>     
> > With 2.6 + fdt, there is no io_block_mapping anymore, no 1:1
> > mapping thereby. If you would post full boot log, from u-boot
> > beginning, including fdt command and kernel command line, we will
> > hopefully will be able to tell you more.
> >
> > Thanks,
> >
> > Vitaly
> >
> >  
> >   
> >> Can you help me please ?
> >>
> >>
> >>     Sylvain ANDRE.
> >>    
> >>     
> >
> >   
>