[U-Boot-Users] 1.1.4 and 2.6 kernel

[Andrea Gimignani]

If I'm not wrong, the 2.4 MTD driver and the 2.6 MTD driver is slightly
different.
In fact in 2.4 you have /dev/mtd0 and /dev/mtdblock0 representing the whole
flash.
In 2.6 /dev/mtd0 and /dev/mtdblock0 represent the first partition.

So maybe you can try with root=/dev/mtdblock3.

No hints regarding the console issue.

Bye,
ilGimmy

-----Original Message-----
From: u-boot-users-bounces at lists.sourceforge.net
[mailto:u-boot-users-bounces at lists.sourceforge.net] On Behalf Of alfred
hitch
Sent: Tuesday, June 27, 2006 12:47 PM
To: Ilya Yanok
Cc: u-boot-users at lists.sourceforge.net
Subject: Re: [U-Boot-Users] 1.1.4 and 2.6 kernel

Hi Ilya,

Thanks for your reply.

Can you please help me understand what params you are referring to ?

I had changed my u-boot configs file to use:
#define CONFIG_BOOTARGS         "console=ttyS1,115200
root=/dev/mtdblock4 rw, mem=64M at 0x00000000"

Note the change from default ttyS0 to ttyS1.

And linux bootargs I see xconf as :
console=ttyS1,115200 root=/dev/mtdblock4 mem=64M at 0x00000000

So, they look more or less ok ??

With same u-boot  I can get 2.4 working.
So, what could I be missing here.

Wolfgang: Apologise for html mail, my mistake. But I do see this issue as
falling on the line between u-boot and linux. Not sure if linux guys will
also push me to u-boot back again.
So, please see if you can offer some advice.

Regards,
Alfred



On 6/27/06, Ilya Yanok <ilya.yanok at gmail.com> wrote:
> alfred hitch wrote:
> > I am trying to get 2.6 kernel boot on a plattfor very similar to
ixdp425.
> > We already have u-boot 1.1.1 and 2.4 kernel working for us. But, 
> > while trying to get the 2.6 working.
> >
> > I get the Booting image at XXXX
> > XXXX
> > Starting Kernel ...
> >
> > And after that nothing.
> >
> > At this stage I am expecting the "Uncompressing Linux ......"
> Looks like kernel doesn't use serial console, have you provided 
> correct console= boot argument?
>
> > What could be going wrong ? Same board, if I put in 2.4 on a 1.1.4 
> > version u-boot, it boots fine.
> >
> > Is it some tty redirection issue ??
> > Only change from IXDP425 board is sdram configuration and ttyS1 for 
> > console instead of ttyS0.
> > Suspecting later but then 2.4 shouldnt' have also booted up ?
>
> I'm pretty sure that serial device of your board was renamed from ttyS 
> to something more specific in 2.6 kernel. Check this.
>
> Second possible reason is that you don't have boot arguments support 
> in u-boot (your 2.4 kernel may have precompiled boot arguments, check 
> kernel configuration).
>
>         Ilya.
>
>
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