[Buildroot] AT91SAM9G20 build .config for linux-2.6.26

[Buildroot] AT91SAM9G20 build .config for linux-2.6.26

[Mauro Condarelli]

Hi,
I've been trying to build the whole kernel+rootfs system for my
AT91SAM9G20-EK Rev.B EVA board several times now and always failing, for
one reason or the other.

I tried both the straight instructions from buildroot.uclibc.org and
those from www.linux4sam.org.

I have a working set bootstrap+uboot+linux-2.6.25+rootfs BINARY ONLY!

I am (for the time being) happy with the first two steps and I'm trying
to setup a net boot with tftp+nfs.
I have been able to set-up a server with working tftpd+nfsd that will
boot the original stuff.

Now I'm trying to start from scratch compiling kernel+rootfs.
For several reasons I do *need* to use linux-2.6.26.

As said I tried several (>>10) times to do this with varying
configurations and results... none fully booting.

Sometimes I get a kernel that will not event try to boot (apparently
built for some other microcontroller), sometimes just hanging there
(usually because trying to load the kernel into internal ram; how do I
set link address??), sometimes unable to mount the rootfs.

Pretty please: can someone point me to a basic set of .config's
(buildroot, kernel, uClibc) or, equivalently to a .../local/AT91SAM9G20
subdir?
I need something working I can start from and then modify so suit my
needs; right now I'm wading in a sea of options and about to drown.
To have the options used to compile the at91sam9g20 demo available on
linux4sam (apparently contributed by Nicolas Ferre who, I hope, reads
this in CC:) would be ok.

Thanks in Advance (and Happy New Year!)

Mauro Condarelli

P.S.: The welcome message for the mailing list says to send mail to "buildroot at busybox.net" but it doesn't seem to work. I have to send messages to "buildroot at uclibc.org" instead.  What am I doing wrong?
Best Regards
Mauro

[Buildroot] R: AT91SAM9G20 build .config for linux-2.6.26

[Michael Trimarchi]

Hi,

--- Ven 26/12/08, Mauro Condarelli <mcondarelli@soft-in.com> ha scritto:

> Da: Mauro Condarelli <mcondarelli@soft-in.com>
> Oggetto: [Buildroot] AT91SAM9G20 build .config for linux-2.6.26
> A: buildroot at uclibc.org
> Data: Venerd? 26 dicembre 2008, 20:06
> Hi,
> I've been trying to build the whole kernel+rootfs
> system for my
> AT91SAM9G20-EK Rev.B EVA board several times now and always
> failing, for
> one reason or the other.
> 
> I tried both the straight instructions from
> buildroot.uclibc.org and
> those from www.linux4sam.org.
> 
> I have a working set bootstrap+uboot+linux-2.6.25+rootfs
> BINARY ONLY!
> 
> I am (for the time being) happy with the first two steps
> and I'm trying
> to setup a net boot with tftp+nfs.
> I have been able to set-up a server with working tftpd+nfsd
> that will
> boot the original stuff.
> 

The rootfs is one thing. The kernel is another one. You can compile
the kernel outside the buildroot project using the same toolchain, start
from the config file of 2.6.25 distribuition.

Michael



      

[Buildroot] R: AT91SAM9G20 build .config for linux-2.6.26

[Mauro Condarelli]

Michael Trimarchi ha scritto:
> Hi,
>
> --- Ven 26/12/08, Mauro Condarelli <mcondarelli@soft-in.com> ha scritto:
>
>   
>> Da: Mauro Condarelli <mcondarelli@soft-in.com>
>> Oggetto: [Buildroot] AT91SAM9G20 build .config for linux-2.6.26
>> A: buildroot at uclibc.org
>> Data: Venerd? 26 dicembre 2008, 20:06
>> Hi,
>> I've been trying to build the whole kernel+rootfs
>> system for my
>> AT91SAM9G20-EK Rev.B EVA board several times now and always
>> failing, for
>> one reason or the other.
>>
>> I tried both the straight instructions from
>> buildroot.uclibc.org and
>> those from www.linux4sam.org.
>>
>> I have a working set bootstrap+uboot+linux-2.6.25+rootfs
>> BINARY ONLY!
>>
>> I am (for the time being) happy with the first two steps
>> and I'm trying
>> to setup a net boot with tftp+nfs.
>> I have been able to set-up a server with working tftpd+nfsd
>> that will
>> boot the original stuff.
>>
>>     
>
> The rootfs is one thing. The kernel is another one. You can compile
> the kernel outside the buildroot project using the same toolchain, start
> from the config file of 2.6.25 distribuition.
>
> Michael
>   
Pretty please, I tried several (dozens of) configurations.
Can  someone contribute a *surely working* .config file for my board?
I started "from the config file of 2.6.25 distribuition" (assuming You
mean the one that is available from www.kernel.org) multiple times,
never getting to a working kernel.

I really need to start from some "known good" point, otherwise I'm just
running circles.

TiA
Mauro

[Buildroot] R: AT91SAM9G20 build .config for linux-2.6.26

[Mauro Condarelli]

michael ha scritto:
> Hi,
>
> Mauro Condarelli wrote:
>> Michael Trimarchi ha scritto:
>>> Hi,
>>>
>>> --- Ven 26/12/08, Mauro Condarelli <mcondarelli@soft-in.com> ha
>>> scritto:
>>>
>>>  
>>>> Da: Mauro Condarelli <mcondarelli@soft-in.com>
>>>> Oggetto: [Buildroot] AT91SAM9G20 build .config for linux-2.6.26
>>>> A: buildroot at uclibc.org
>>>> Data: Venerd? 26 dicembre 2008, 20:06
>>>> Hi,
>>>> I've been trying to build the whole kernel+rootfs
>>>> system for my
>>>> AT91SAM9G20-EK Rev.B EVA board several times now and always
>>>> failing, for
>>>> one reason or the other.
>>>>
>>>> I tried both the straight instructions from
>>>> buildroot.uclibc.org and
>>>> those from www.linux4sam.org.
>>>>
>>>> I have a working set bootstrap+uboot+linux-2.6.25+rootfs
>>>> BINARY ONLY!
>>>>
>>>> I am (for the time being) happy with the first two steps
>>>> and I'm trying
>>>> to setup a net boot with tftp+nfs.
>>>> I have been able to set-up a server with working tftpd+nfsd
>>>> that will
>>>> boot the original stuff.
>>>>
>>>>     
>>> The rootfs is one thing. The kernel is another one. You can compile
>>> the kernel outside the buildroot project using the same toolchain,
>>> start
>>> from the config file of 2.6.25 distribuition.
>>>
>>> Michael
>>>   
>> Pretty please, I tried several (dozens of) configurations.
>> Can  someone contribute a *surely working* .config file for my board?
>> I started "from the config file of 2.6.25 distribuition" (assuming You
>> mean the one that is available from www.kernel.org) multiple times,
>> never getting to a working kernel.
>>
>
> If you use the latest kernel you have the at91sam9g20ek_defconfig. The
> pathces for
> the at9samg20 are in the official kernel tree starting from the TAG
> v2.6.27-rc1
>
>> I really need to start from some "known good" point, otherwise I'm just
>> running circles.
>>
>> TiA
>> Mauro
>>
>
> The configs file are under arch/arm/configs/ directory of the kernel
> tree.
>
> Regards Michael
>
Hi,
Thanks.

I know that, unfortunately, for reasons independent of my will, I need
to stick to version 2.6.26.

Is there any *easy* way to backport the changes?

Can someone help me?

TiA
Mauro

[Buildroot] R: AT91SAM9G20 build .config for linux-2.6.26

[Michael Trimarchi]

Hi

> Hi,
> Thanks.
> 
> I know that, unfortunately, for reasons independent of my
> will, I need
> to stick to version 2.6.26.
> 
> Is there any *easy* way to backport the changes?
> 
> Can someone help me?
> 
> TiA
> Mauro

Apply the two patches of at91sam9g20 to the 2.6.26. You can find in the 
mailing list:

http://lkml.org/lkml/2008/6/13/62

This is the thread I think

Michael



      

[Buildroot] AT91SAM9G20 build .config for linux-2.6.26

[Bernhard Gödel]

Hi Mauro,

I'm sorry I can't help you with your Eval board but this

> P.S.: The welcome message for the mailing list says to send mail to "buildroot at busybox.net" but it doesn't seem to work. I have to send messages to "buildroot at uclibc.org" instead.  What am I doing wrong?

I can confirm. My first two mails to this mailing list were in fact not 
delivered to the list because of the wrong E-Mail address. I resent them 
after I've read the address others write to to post the mail to the list.

Maybe there others also trying to post to the list but do not succeed: 
the correct address to write to is buildroot at uclibc.org

Bernhard