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RE: Intel FLASH
- From: Gary Thomas <gary at mlbassoc dot com>
- To: "Doyle, Patrick" <WPD at dtccom dot com>
- Cc: 'Jani Monoses' <jani at iv dot ro>,eCos patches <ecos-patches at sources dot redhat dot com>
- Date: 26 Sep 2003 13:23:01 -0600
- Subject: RE: Intel FLASH
- Organization: MLB Associates
- References: <F18ED44D2778844592DFB732956B6651B52A19@DTCNT40S4>
On Fri, 2003-09-26 at 13:09, Doyle, Patrick wrote:
> > The CFI information is supposed to be correct, so use it.
>
> My concern, not knowing the history of CFI, is that there could be newer
> information in the CFI description that I have for the W18 part that wasn't
> present when you wrote the original driver. I see that bytes 0x31-0x34
> contain "Erase Block Region 2" information. If older devices do not
> guarantee that these bytes contain zeros, then the newer driver will break
> on those devices.
>
> Personally, I'm inclined to just assume that Intel specified that those
> bytes would be zero from the beginning, and, if my assumption proves false,
> add an #ifdef to support the older parts later, if needed.
Give it a whirl. There are lots of systems out there with these devices
in place, so testing should not be a big problem.
--
Gary Thomas <gary@mlbassoc.com>
MLB Associates