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From: Detlev Zundel <dzu@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] inka4x0: board specific RTC support.
Date: Thu, 11 Dec 2008 16:25:02 +0100	[thread overview]
Message-ID: <m2skouray9.fsf@ohwell.denx.de> (raw)
In-Reply-To: <20081209234110.774A6834B020@gemini.denx.de> (Wolfgang Denk's message of "Wed, 10 Dec 2008 00:41:10 +0100")

Hi Wolfgang,

> Dear ap at denx.de,
>
> In message <1227214731-19542-3-git-send-email-ap@denx.de> you wrote:
>> From: Andreas Pfefferle <ap@denx.de>
>> 
>> This patch adds the board specific communication routines needed
>> by the external 4543 RTC.
>
> No, that's broken by design. An RTC is  not  board-dependent,  but  a
> generic  piece  of  hardware.  Code  for  it does not belong into any
> board-specific file, but into drivers/rtc/

Did you actually check what he does?  

He does exactly what you request, he puts all the 4543 code into
drivers/rtc, but this cannot globally encode on how to access the chip
from a specific hardware.  So he factored that out of the rtc driver
(correctly in my opinion) and has only this glue code in the board
files.

What *exactly* is broken by design in this approach?

Cheers
  Detlev

-- 
FORTRAN's tragic fate has been its wide acceptance, mentally chaining thousands
and thousands of programmers to our past mistakes. I pray daily that more of my
fellow-programmers  may find the means of  freeing themselves from the curse of
compatibility.                          -- Edsger W. Dijkstra
--
DENX Software Engineering GmbH,      MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich,  Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-40 Fax: (+49)-8142-66989-80 Email: dzu at denx.de

  reply	other threads:[~2008-12-11 15:25 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <ap@denx.de>
2008-11-20 20:58 ` [U-Boot] [PATCH] Hardware diagnosis for inka4x0 boards ap at denx.de
2008-11-20 20:58   ` [U-Boot] [PATCH] =?utf-8?q?rtc:=20add=20support=20for=204543=20RTC=20(manufactured=20by=20e.g.=20EPSON) ap at denx.de
2008-11-20 20:58     ` [U-Boot] [PATCH] inka4x0: board specific RTC support ap at denx.de
2008-11-20 20:58       ` [U-Boot] [PATCH] inka4x0: hardware diagnosis and RTC ap at denx.de
2008-11-20 21:34         ` Jean-Christophe PLAGNIOL-VILLARD
2008-11-20 22:07           ` Wolfgang Denk
2008-12-09 23:39         ` Wolfgang Denk
2008-11-20 21:30       ` [U-Boot] [PATCH] inka4x0: board specific RTC support Jean-Christophe PLAGNIOL-VILLARD
2008-12-09 23:41       ` Wolfgang Denk
2008-12-11 15:25         ` Detlev Zundel [this message]
2008-11-20 21:24     ` [U-Boot] [PATCH]=?utf-8?q?rtc:=20add=20support=20for=204543=20RTC=20(manufactured=20by=20e.g.=20EPSON) Jean-Christophe PLAGNIOL-VILLARD
2008-11-20 21:46   ` [U-Boot] [PATCH] Hardware diagnosis for inka4x0 boards Jean-Christophe PLAGNIOL-VILLARD
2008-12-09 23:57   ` Wolfgang Denk
2008-12-11 15:28     ` Detlev Zundel

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