[U-Boot-Users] u-boot-1.0 and clearing of BSS segment on ARM

[U-Boot-Users] u-boot-1.0 and clearing of BSS segment on ARM

[Markus Pietrek]

Hi folks,

I wonder why there seems to be no BSS clearing function for the SMDK2410 and 
other ARM platforms like in i386/start.s:bss

Is it assumed that the memory is already cleared on reset?

Bye,

-- 
Markus Pietrek
FS Forth-Systeme GmbH
Phone: +49 (7667) 908 145,  FAX +49 (7667) 908 221

[U-Boot-Users] u-boot-1.0 and clearing of BSS segment on ARM

[Anders Larsen]

Markus Pietrek <mpietrek@fsforth.de> schreibt:
>Hi folks,
>
>I wonder why there seems to be no BSS clearing function for the SMDK2410
>and 
>other ARM platforms like in i386/start.s:bss
>
>Is it assumed that the memory is already cleared on reset?

Hi,

hardware-reset does not clear the contents of RAM, so such function is
certainly needed.

This morning I submitted a patch which - among other things - added BSS
clearing to all ARMs, so there's hope that the problem will disappear
soon  :-)

Cheers
 Anders

[U-Boot-Users] u-boot-1.0 and clearing of BSS segment on ARM

[Wolfgang Denk]

Dear Markus,

in message <200401091408.44458.mpietrek@fsforth.de> you wrote:
> 
> I wonder why there seems to be no BSS clearing function for the SMDK2410 and 
> other ARM platforms like in i386/start.s:bss

We inherited this from the ARMboot port, and so far nobody fixed it -
but see the recent patches by Anders larsen on this list.

> Is it assumed that the memory is already cleared on reset?

I don't know what the guys who implemented this assumed. The code  as
is is broken.

Best regards,

Wolfgang Denk

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