[Buildroot] Best buildroot options for a custom AT91RM9200 board?

[Buildroot] Best buildroot options for a custom AT91RM9200 board?

[Jorge S.]

 Hi,

 I'm trying to create a root fs for a custom board wich is AT91rm9200 based.
So i have several newbie (maybe dumb) questions.

I've started with the svn version of buildroot and after dealing with lots
of "soft-float"/uCLibc problems i finally discovered that
there's a prebuilt setup from the Atmel people that seems to work.

Since the AT91.com buildroot project section is broken, im unable to find
further documentation regarding this matter appart from some posts from Ulf
Samuelsson on this list.

Can somebody tell me wich version is best for the AT91RM9200? I only see 2
options:

1) Last buildroot svn version
2)
ftp://at91dist:distrib at 81.80.104.162/AT91_Third_Party_Design_Flow/Linux_Host/Buildroot/buildroot-20070116-RC2.tar.bz2

Are there any other options?

And the last question, I'm using a 8MB Spi DataFlash for storage, so my
rootFS cannot grow more than 6 MB (since i use at least 2MB for bootloader,
kernel and other stuff) is there any "must have" minimal configuration
recommended?



Thanks all for your time and sorry about my poor english.
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[Buildroot] Best buildroot options for a custom AT91RM9200 board?

[Ulf Samuelsson]

----- Original Message ----- 
From: "Jorge S." <jorgesolla@gmail.com>
To: <buildroot@uclibc.org>
Sent: Monday, October 08, 2007 5:04 PM
Subject: [Buildroot] Best buildroot options for a custom AT91RM9200 board?


> Hi,
> 
> I'm trying to create a root fs for a custom board wich is AT91rm9200 based.
> So i have several newbie (maybe dumb) questions.
> 
> I've started with the svn version of buildroot and after dealing with lots
> of "soft-float"/uCLibc problems i finally discovered that
> there's a prebuilt setup from the Atmel people that seems to work.
> 
> Since the AT91.com buildroot project section is broken, im unable to find
> further documentation regarding this matter appart from some posts from Ulf
> Samuelsson on this list.
> 
> Can somebody tell me wich version is best for the AT91RM9200? I only see 2
> options:
> 
> 1) Last buildroot svn version
> 2)
> ftp://at91dist:distrib at 81.80.104.162/AT91_Third_Party_Design_Flow/Linux_Host/Buildroot/buildroot-20070116-RC2.tar.bz2
> 
> Are there any other options?
> 


ftp://at91dist:distrib at 81.80.104.162/AT91_Third_Party_Design_Flow/Linux_Host/Buildroot/Source/buildroot-atmel-2007-06-07.cpio.bz2

svn should be OK if NWFPE is used, soft-float does not work with current setup.
It worked 1-2 weeks ago for ARM integrator, but now this is broken as well.
Don't know what happened.

Best Regards
Ulf Samuelsson

> And the last question, I'm using a 8MB Spi DataFlash for storage, so my
> rootFS cannot grow more than 6 MB (since i use at least 2MB for bootloader,
> kernel and other stuff) is there any "must have" minimal configuration
> recommended?
> 
> 
> 
> Thanks all for your time and sorry about my poor english.
>


--------------------------------------------------------------------------------


> _______________________________________________
> buildroot mailing list
> buildroot at uclibc.org
> http://busybox.net/mailman/listinfo/buildroot

[Buildroot] Fwd: Best buildroot options for a custom AT91RM9200 board?

[Jorge S.]

2007/10/8, Ulf Samuelsson <ulf@atmel.com>:
>
> ----- Original Message -----
> From: "Jorge S." <jorgesolla@gmail.com>
> To: <buildroot@uclibc.org>
> Sent: Monday, October 08, 2007 5:04 PM
> Subject: [Buildroot] Best buildroot options for a custom AT91RM9200 board?
>
>
> > Hi,
> >
> > I'm trying to create a root fs for a custom board wich is AT91rm9200
> based.
> > So i have several newbie (maybe dumb) questions.
> >
> > I've started with the svn version of buildroot and after dealing with
> lots
> > of "soft-float"/uCLibc problems i finally discovered that
> > there's a prebuilt setup from the Atmel people that seems to work.
> >
> > Since the AT91.com buildroot project section is broken, im unable to
> find
> > further documentation regarding this matter appart from some posts from
> Ulf
> > Samuelsson on this list.
> >
> > Can somebody tell me wich version is best for the AT91RM9200? I only see
> 2
> > options:
> >
> > 1) Last buildroot svn version
> > 2)
> > ftp://at91dist:distrib at 81.80.104.162/AT91_Third_Party_Design_Flow/Linux_Host/Buildroot/buildroot-20070116-RC2.tar.bz2
>
> >
> > Are there any other options?
> >
>
>
> ftp://at91dist:distrib at 81.80.104.162/AT91_Third_Party_Design_Flow/Linux_Host/Buildroot/Source/buildroot-atmel-2007-06-07.cpio.bz2
>
>
> svn should be OK if NWFPE is used, soft-float does not work with current
> setup.
> It worked 1-2 weeks ago for ARM integrator, but now this is broken as
> well.
> Don't know what happened.
>
> Best Regards
> Ulf Samuelsson




So can i assume that is OK to use the default toolchain (built using "make
at91rm9200df_defconfig") that comes with the "Use software floating point by
default" option disabled *ONLY* if i have a NWFPE enabled kernel? or should
i take another things into account?


Btw if you enable the "software floating point" it always fails while trying
to link uCLibc, googling around i saw somewhere that its a problem with the
binutils silently ignoring the "-soft-float" option.

Thanks for helping.

Jorge.


>
> >
> >
> > Thanks all for your time and sorry about my poor english.
> >
>
>
>
> --------------------------------------------------------------------------------
>
>
> > _______________________________________________
> > buildroot mailing list
> > buildroot at uclibc.org
> > http://busybox.net/mailman/listinfo/buildroot
>
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[Buildroot] Best buildroot options for a custom AT91RM9200 board?

[Leonid]

Hi, Jorge: 

________________________________________________________________________
On Monday, October 08, 2007 8:05 AM Jorge S. wrote:
> I'm trying to create a root fs for a custom board wich is AT91rm9200
based. So i have several newbie (maybe dumb) questions.

LB: I was working on the same last 2 weeks.

> I've started with the svn version of buildroot and after dealing with
lots of "soft-float"/uCLibc problems 
> finally discovered that there's a prebuilt setup from the Atmel people
that seems to work. 

[snip]

> 1) Last buildroot svn version
> 2)
ftp://at91dist:distrib at 81.80.104.162/AT91_Third_Party_Design_Flow/Linux_
Host/Buildroot/buildroot-20070116-RC2.tar.bz2

LB: I couldn't make option 1 working for me, but that probably was
because I was really newbie for builsroot couple weeks ago. I may try
again in future. After all I used second option successfully.

> And the last question, I'm using a 8MB Spi DataFlash for storage, so
my rootFS cannot grow more than 6 MB (since i use at least 2MB 
> for bootloader, kernel and other stuff) is there any "must have"
minimal configuration recommended? 

LB: My filesystem footprint is 8M now, but I have included gdb for
target and my application also takes space, bare minimum is about 6M.
Ramdisk (packed) was 1.4M and 3.7M respectively, so you can work with 8M
flash though I suggest bigger one.

Leonid.

[Buildroot] Best buildroot options for a custom AT91RM9200 board?

[Jorge S.]

2007/10/8, Leonid <Leonid@a-k-a.net>:
>
> Hi, Jorge:


Hi again, and thanks for your help.


> > I've started with the svn version of buildroot and after dealing with
> lots of "soft-float"/uCLibc problems
> > finally discovered that there's a prebuilt setup from the Atmel people
> that seems to work.
>
> [snip]
>
> > 1) Last buildroot svn version
> > 2)
> ftp://at91dist:distrib at 81.80.104.162/AT91_Third_Party_Design_Flow/Linux_
> Host/Buildroot/buildroot-20070116-RC2.tar.bz2
>
> LB: I couldn't make option 1 working for me, but that probably was
> because I was really newbie for builsroot couple weeks ago. I may try
> again in future. After all I used second option successfully.


I'm still working on it this afternoon and i can confirm that option 1 (last
svn version from buildroot) produces a working
toolchain just using the "at91rm9200df_defconfig". When i say working i mean
it its able to build the toolchain,uCLibc, Busybox, Boa web server, libcgic,
libsqlite and some other tools, still untested on the target system.

I was trying to build wireless-tools since i'm planning to use a wifi
usb-gadget on my board but compilation failed, i will try to solve this
tomorrow.

Try:

     make at91rm9200df_defconfig
    and then...make



    After solving a few errors with broken urls while the script downloads
sources,you get the toolchain and the rootfs.

   By default it creates a 36MB rootfs, so i disabled most of the sections
and now i have a 4,4MB rootfs.


Jorge.
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