[U-Boot] kirkwood (openrd): saveenv will not work with environment in NAND

[Dieter Kiermaier <dk-arm-linux@gmx.de>]

Am Mittwoch 30 September 2009 09:57:10 schrieb Simon Kagstrom:
> On Wed, 30 Sep 2009 09:40:07 +0200
> Dieter Kiermaier <dk-arm-linux@gmx.de> wrote:
> 
> > > Sounds like you might have problems with USE_PRIVATE_LIBGCC. See this
> > > mail for how to test this:
> > > 
> > >   http://lists.denx.de/pipermail/u-boot/2009-August/059313.html
> > 
> > export USE_PRIVATE_LIBGCC=yes
> > seems to solve my problem - even if I don't exactly understand what I'm doing :(
> 
> You use a libgcc from uboot/lib_arm, built when you build uboot,
> instead of the one you built with gcc. Basically you will build this
> with the same ABI options as you build the rest of uboot, so it will
> avoid the linker errors you got before.

Ahh, ok. Thanks for pointing this out!

> 
> > @Prafulla:
> > Hi Prafulla,
> > is there anywhere a document how to build open source u-boot for sheevaplug which explains all these details?
> > (haven't found some documentation about this)
> 
> (Wearing my Prafulla hat): I guess this should be described on the
> plugwiki:
> 
>   http://www.openplug.org/plugwiki/index.php/Das_U-boot_plug_support#Open_U-boot_support_for_SheevaPlug
Yes - I know this page but there are no information regarding the latest u-boot changes (e.g. openrd support, movement from git.marvell.com to denx , the
toolchain problems...)
;)

> 
> but we really just need to solve the EABI problem.
> 
> 
> Wolfgang/Stefan/Tom/Prafulla: Would a patch like the one below be
> acceptable until we find out a proper fix? I realise that this also
> affects other arm926ejs-boards, but is there some way to isolate this
> to kirkwood?
> 
> // Simon

Again, many thanks for helping!

Dieter


> 
> 
> From 29ff02ca77406e820203ad27369e0684aa1a098c Mon Sep 17 00:00:00 2001
> From: Simon Kagstrom <simon.kagstrom@netinsight.net>
> Date: Fri, 4 Sep 2009 11:15:20 +0200
> Subject: [PATCH] Make arm926ejs use -mabi=apcs-gnu and private libgcc
> 
> Using -mabi=apcs-gnu allows Marvell Kirkwood-based boards to boot with
> the EABI changes introduced in commit
> f772acf8a584067033eff1e231fcd1fb3a00d3d9. Since this changes the ABI,
> USE_PRIVATE_LIBGCC is also defined.
> 
> Signed-off-by: Simon Kagstrom <simon.kagstrom@netinsight.net>
> ---
>  cpu/arm926ejs/config.mk |    3 ++-
>  1 files changed, 2 insertions(+), 1 deletions(-)
> 
> diff --git a/cpu/arm926ejs/config.mk b/cpu/arm926ejs/config.mk
> index f8ef90f..1c9d547 100644
> --- a/cpu/arm926ejs/config.mk
> +++ b/cpu/arm926ejs/config.mk
> @@ -20,10 +20,11 @@
>  # Foundation, Inc., 59 Temple Place, Suite 330, Boston,
>  # MA 02111-1307 USA
>  #
> +USE_PRIVATE_LIBGCC = yes
>  
>  PLATFORM_RELFLAGS += -fno-common -ffixed-r8 -msoft-float
>  
> -PLATFORM_CPPFLAGS += -march=armv5te
> +PLATFORM_CPPFLAGS += -march=armv5te -mabi=apcs-gnu
>  # =========================================================================
>  #
>  # Supply options according to compiler version