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From: Wolfgang Denk <wd@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] Disable FLASH_AMLV256U support for TOP860 target
Date: Tue, 28 Oct 2014 10:33:48 +0100	[thread overview]
Message-ID: <20141028093348.43664382FEC@gemini.denx.de> (raw)
In-Reply-To: <CA+gZxsOYLBU18LimMmfP9B-gZaykN=hZtM1FVgpd8p-eEW19bQ@mail.gmail.com>

Dear Vasili,

In message <CA+gZxsOYLBU18LimMmfP9B-gZaykN=hZtM1FVgpd8p-eEW19bQ@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@gmail.com>
> > Cc: Wolfgang Denk <wd@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

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
"I've finally learned what `upward compatible' means. It means we get
to keep all our old mistakes." - Dennie van Tassel

  reply	other threads:[~2014-10-28  9:33 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-06-16 14:41 [U-Boot] [PATCH] Disable FLASH_AMLV256U support for TOP860 target Vasili Galka
2014-08-12 15:17 ` Vasili Galka
2014-10-28  9:33   ` Wolfgang Denk [this message]
     [not found]     ` <CA+gZxsPKtwYAhHm88fBtGW17cxT7ncEz9OBxwpqiJ55WR-kfcg@mail.gmail.com>
2014-10-28  9:48       ` Wolfgang Denk
2014-10-28 10:07         ` Reinhard Meyer
2014-10-28 10:23           ` Wolfgang Denk
2014-10-28 10:35             ` Reinhard Meyer
2014-10-28 10:40               ` Wolfgang Denk

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