From: "Mynampati, Venkata S." <MynamVS@nsc-msg01.network.com>
To: "'Mark Salter'" <msalter@redhat.com>
Cc: ecos-discuss@sources.redhat.com
Subject: RE: [ECOS] sdram scrubbing and MMU enabling.
Date: Fri, 03 Aug 2001 10:01:00 -0000 [thread overview]
Message-ID: <A7E1C26945C8D211ADBF0008C709661A035F2B0D@nsc-msg02.network.com> (raw)
> >>>>> Mynampati, Venkata S writes:
>
> > Hi
> > in hal_platform_setup.h ( iq80310/include), i noticed that we are
> > enabling MMU and then scrubbing sdram starting from
> RAM_BASE i.e A0000000.
> > Now, my doubt is:
> > since we have mapped the first 4K of RAM to flash,
> > [ mmu_table_rambase:
> > // Map 4k page at 0xa0000000 virt -->
> 0x00000000 physical
> > // Read-Write, cacheable, non-bufferable ]
> > does that mean writing a 0x00 to a0000000 is same as
> writing to flash?
> > Am i missing something here?
>
> No, its a problem. It came up this week on the ARM linux
> kernel mailing list.
> I'm working on a fix.
>
> --Mark
>
what i am doing is scrubbing and then enabling mmu.
venkat
next reply other threads:[~2001-08-03 10:01 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-08-03 10:01 Mynampati, Venkata S. [this message]
2001-08-03 10:08 ` Mark Salter
-- strict thread matches above, loose matches on Subject: below --
2001-08-03 10:27 Mynampati, Venkata S.
2001-08-03 10:43 ` Mark Salter
2001-08-04 6:58 ` Mark Salter
2001-08-03 9:48 Mynampati, Venkata S.
2001-08-03 9:55 ` Mark Salter
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