From: "Frank Ch. Eigler" <fche@redhat.com>
To: Robert Shideleff <bigbob@shideleff.com>
Cc: sid@sources.redhat.com
Subject: Re: GDB/mapper cache problems
Date: Wed, 23 Jun 2004 01:47:00 -0000 [thread overview]
Message-ID: <20040623014739.GA25926@redhat.com> (raw)
In-Reply-To: <200406222050.55129.bigbob@shideleff.com>
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Hi -
> The processor is an arm7t with a 32 bit bus. The flash is a 16 bit device.
> [...] In our actual hardware, we have a mapper that will read and
> register two 16 bit addresses on the flash and shift/concatenate them to form
> a single 32 bit word when the processor executes a 32 bit read. [...]
I don't recall exactly now, but it may be that the plain memory mapper
component's optional stride/width syntax might specify exactly this.
Append ",2,2" after your flash address-range string and see what bus
API calls flow downstream. (See siddoc hw-mapper-basic.)
- FChE
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next prev parent reply other threads:[~2004-06-23 1:47 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-06-17 1:57 Multiple arm7t processors in pbb causes seg fault Robert Shideleff
2004-06-17 21:54 ` Frank Ch. Eigler
[not found] ` <20040622024603.GB22793@redhat.com>
[not found] ` <200406212319.30979.bigbob@shideleff.com>
2004-06-22 16:08 ` GDB/mapper cache problems Robert Shideleff
2004-06-22 16:23 ` Frank Ch. Eigler
2004-06-23 0:51 ` Robert Shideleff
2004-06-23 1:47 ` Frank Ch. Eigler [this message]
2004-06-23 23:35 ` Robert Shideleff
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