[U-Boot] Compiler flag -msoft-float in arch/powerpc/cpu/mpc83xx/config.mk

[U-Boot] Compiler flag -msoft-float in arch/powerpc/cpu/mpc83xx/config.mk

[Holger Brunck]

Hi all,
I am wondering why arch/powerpc/cpu/mpc83xx/config.mk sets -msoft-float for all
ppc 83xx processors. This is valid e.g. for MPC8321 but e.g. the MPC8360 has a
hardware floating point unit. Shouldn't the config.mk file distinguish between
different 83xx processors to set this flag only for those which don't have a FPU?

Best regards
Holger Brunck

[U-Boot] Compiler flag -msoft-float in arch/powerpc/cpu/mpc83xx/config.mk

[Måns Rullgård]

Holger Brunck <holger.brunck@keymile.com> writes:

> Hi all,
> I am wondering why arch/powerpc/cpu/mpc83xx/config.mk sets
> -msoft-float for all ppc 83xx processors. This is valid e.g. for
> MPC8321 but e.g. the MPC8360 has a hardware floating point
> unit. Shouldn't the config.mk file distinguish between different 83xx
> processors to set this flag only for those which don't have a FPU?

This has been discussed to death here before.  The short answer is
-msoft-float is correct.  The long answer is in the list archives.  The
last major debate on the topic was a month or two ago.

-- 
M?ns Rullg?rd
mans at mansr.com

[U-Boot] Compiler flag -msoft-float in arch/powerpc/cpu/mpc83xx/config.mk

[Wolfgang Denk]

Dear =?iso-8859-1?Q?M=E5ns_Rullg=E5rd?=,

In message <yw1xoc52rvyk.fsf@unicorn.mansr.com> you wrote:
> Holger Brunck <holger.brunck@keymile.com> writes:
> 
> > Hi all,
> > I am wondering why arch/powerpc/cpu/mpc83xx/config.mk sets
> > -msoft-float for all ppc 83xx processors. This is valid e.g. for
> > MPC8321 but e.g. the MPC8360 has a hardware floating point
> > unit. Shouldn't the config.mk file distinguish between different 83xx
> > processors to set this flag only for those which don't have a FPU?
> 
> This has been discussed to death here before.  The short answer is
> -msoft-float is correct.  The long answer is in the list archives.  The
> last major debate on the topic was a month or two ago.

For reference, see here:

http://thread.gmane.org/gmane.comp.boot-loaders.u-boot/94880
and
http://thread.gmane.org/gmane.comp.boot-loaders.u-boot/94940

Best regards,

Wolfgang Denk

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