Re: how to get MTD support - need expert input

Ian
2001-06-13T03:53:05Z

I was looking at having one of these made for me ... if its XIP flash (unlike
the DoC Millennium (outside its first 512bytes)) then I would be interested
in the circuit diagrams and could contribute C-level programming to drive it
resources.

Actually the one I was looking at having built would have been 512k pages,
but 64k should be enough for anybody ;-)

----- Original Message -----
>From: "Tim Hockin" <thockin@sun.com>
>To: <linux-mtd@lists.infradead.org>
>Subject: how to get MTD support - need expert input
>Date: Tue, 12 Jun 2001 20:35:27 -0700
>
> Hello, All.
>
> I am trying to get the general MTD layer in linux to support our systems'
> flashroms. The problem is that our system setup is a bit unique.
>
> We have 1 or 2 chips (so far all have been JEDEC). These may be of
> intermixable sizes from 512K to 4MB. They are mapped in the top 64k of
> address space (x86 compatible). To swap pages and banks, there is a
custom
> flash page register, which has a few bits that determine teh actively
> mapped page.
>
> So my question is this:
>
> What is the best way for me get full support? Apparently all the JEDEC
> support in 2.4.5 is broken.
>
> This is my thought:
>
> have a map driver (like the other chipset map drivers) that builds it's own
> struct mtd_info. We can then flip pages at will, probe however we like,
> etc. I wish I could say that we will always have both flash chips
> identical, but I can't.
>
> feedback?
>
> --
> Tim Hockin
> Systems Software Engineer
> Sun Microsystems, Cobalt Server Appliances
> thockin@sun.com
>
> ______________________________________________________
> Linux MTD discussion mailing list
> http://lists.infradead.org/mailman/listinfo/linux-mtd/
>

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