[U-Boot] [PATCH] Disable FLASH_AMLV256U support for TOP860 target

Wolfgang Denk wd at denx.de
Tue Oct 28 10:33:48 CET 2014


Dear Vasili,

In message <CA+gZxsOYLBU18LimMmfP9B-gZaykN=hZtM1FVgpd8p-eEW19bQ at mail.gmail.com> you wrote:
>
> > TOP860 configuration assumes at most 128 flash sectors. Thus, the
> > AMLV256U flash can't be supported. The existing code could result in
> > memory corruption when writing to the flash_info->start[] array.
> >
> > Signed-off-by: Vasili Galka <vvv444 at gmail.com>
> > Cc: Wolfgang Denk <wd at denx.de>
> > ---
> >  board/emk/common/flash.c |    4 +++-
> >  1 files changed, 3 insertions(+), 1 deletions(-)
> >
> > diff --git a/board/emk/common/flash.c b/board/emk/common/flash.c
> > index ae5777c..4119b3b 100644
> > --- a/board/emk/common/flash.c
> > +++ b/board/emk/common/flash.c
> > @@ -324,6 +324,7 @@ ulong flash_get_size (FPWV *addr, flash_info_t *info)
> >                         }
> >                         break;
> >                 }
> > +#ifndef CONFIG_TOP860
> >                 if ((FPW)addr[FLASH_ID3] == (FPW)AMD_ID_LV256U_2 &&
> >                         (FPW)addr[FLASH_ID4] == (FPW)AMD_ID_LV256U_3)
> >                 {
> > @@ -337,7 +338,8 @@ ulong flash_get_size (FPWV *addr, flash_info_t *info)
> >                         }
> >                         break;
> >                 }
> > -
> > +#endif
> > +
> >                 /* fall thru to here ! */
> >         default:
> >                 printf ("unknown AMD device=%x %x %x",
> > --
> > 1.7.9
> >
> >
> Any review?
> This was inspired by a a compiler warning. I'm still getting this warning
> on the latest master.

Sorry, I missed that one.

Would it not be more appropriate to adjust the CONFIG_SYS_MAX_FLASH_SECT
setting in "include/configs/TOP860.h"?  Or are you 100% sure that
there were never be any AMLV256U flash chips fit on a TOP860 board?


Best regards,

Wolfgang Denk

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