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Re: question about modification for edb7312
- To: Peihong Li <liphhz at yahoo dot com>
- Subject: Re: [ECOS] question about modification for edb7312
- From: Jonathan Larmour <jlarmour at redhat dot com>
- Date: Thu, 06 Sep 2001 21:37:48 +0100
- Cc: ecos-discuss at sources dot redhat dot com
- Organization: Red Hat UK Ltd.
- References: <20010829024517.95347.qmail@web20203.mail.yahoo.com>
Peihong Li wrote:
>
> All,
> I am going to modify ecos for Cirrus Logic's edb7312.
> I have noticed the difference between 7312 and 7212,
> which is 1) on-chip sram: 48K for 7312, 37.5K for
> 7212; 2) external ram type: sdram for 7312, edo for
> 7212.
> Now, which code sections should I pay attention first?
> Are those only in:
> ...\hal\arm\edb7xxx\v1_3\include
> ...\hal\arm\edb7xxx\v1_3\include\pkgconf ?
Both. Although the stuff in hal_platform_setup.h is probably more important
if MMU changes are required (although they may not be). You'll probably
also want to change INIT_MEMORY_CONFIG for differences between EDO and
SDRAM.
But for a port to a new board I would *strongly* recommend using the
current anonymous CVS: http://sources.redhat.com/ecos/anoncvs.html as there
have been many improvements you would want.
Jifl
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