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From: Wolfgang Denk <wd@denx.de>
To: "Robert P. J. Day" <rpjday@mindspring.com>
Cc: Linuxppc-dev mailing list <linuxppc-dev@ozlabs.org>
Subject: Re: thoughts and questions on 8xx patches
Date: Tue, 21 Sep 2004 14:52:22 +0200	[thread overview]
Message-ID: <20040921125227.46AE2C108D@atlas.denx.de> (raw)
In-Reply-To: Your message of "Tue, 21 Sep 2004 08:23:05 EDT." <Pine.LNX.4.60.0409210808250.9449@dell.enoriver.com>

In message <Pine.LNX.4.60.0409210808250.9449@dell.enoriver.com> you wrote:
> 
> from list discussions some time back, i already gave up on the idea of 
> the configuration being able to detect the exact processor and taking 
> that into account.  we've already established that, and i'm happy with 
> that.

OK.

> all i'm suggesting now is a drop down choice menu of known patches 
> relevant to that architecture, that's all.  in some cases, there would 
> be two choices, as in:
> 
>  	[ ] I2C/SPI for 850
>   	[ ] I2C/SPI for 8xx (non-850)

Plus there is also the case of "need to relocate parameter RAM  on  a
MPC852/859/866/...  processor".  In  this  case  no microcode patch i
sneeded, and the current code will crash the system.

More cases may be necessary.

> i can't imagine that this list would get overly long.  from what i can 
> see, the denx tree supports the following list of patches:

Please forget this. I asked you several times NOT  to  use  this  old
code  for  reference.  It  is  known to be broken in several configu-
rations.

> and, unless i'm reading this badly, that's the entire list.  all of 

No, it's  not.  It  will  not  work  on  most  of  the  newer  MPC8xx
processors.

> so ... why is this such an objectionable thing?

Because it is (1) incomplete and (2) broken.

Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd@denx.de
There are two ways to write error-free programs. Only the  third  one
works.

  reply	other threads:[~2004-09-21 12:52 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-09-20 20:05 thoughts and questions on 8xx patches Robert P. J. Day
2004-09-20 22:10 ` Dan Malek
2004-09-21  0:15   ` Robert P. J. Day
2004-09-21  6:37     ` Dan Malek
2004-09-21 10:13       ` Robert P. J. Day
2004-09-21 10:40         ` Wolfgang Denk
2004-09-21 10:59           ` Robert P. J. Day
2004-09-21 11:49             ` Wolfgang Denk
2004-09-21 12:23               ` Robert P. J. Day
2004-09-21 12:52                 ` Wolfgang Denk [this message]
2004-09-21 12:56                   ` Robert P. J. Day
2004-09-21 17:21                     ` Dan Malek
2004-09-21 11:06           ` Robert P. J. Day
2004-09-21 11:26             ` Wolfgang Denk
2004-09-21 12:07               ` Robert P. J. Day
2004-09-21 12:45                 ` Wolfgang Denk

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